contract_name stringlengths 1 238 | contract_address stringlengths 42 42 | language stringclasses 2 values | source_code stringlengths 197 770k | abi stringlengths 2 43.6k | compiler_version stringclasses 198 values | optimization_used bool 2 classes | runs int64 0 100M | constructor_arguments stringlengths 0 85.2k | evm_version stringclasses 10 values | library stringclasses 172 values | license_type stringclasses 16 values | proxy bool 2 classes | implementation stringlengths 0 42 | swarm_source stringlengths 0 71 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
JackStormsNFTCollection | 0x54d2f4c3cb84ffcba220f6dc1a5546f7ab2c3262 | Solidity | // SPDX-License-Identifier: MIT
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// Visit https://premetoken.com for collaboration
// File: @openzeppelin/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
// File: @openzeppelin/contracts/utils/math/SignedMath.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
// File: @openzeppelin/contracts/utils/math/Math.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Muldiv operation overflow.
*/
error MathOverflowedMulDiv();
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
return a / b;
}
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
if (denominator <= prod1) {
revert MathOverflowedMulDiv();
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)
pragma solidity ^0.8.20;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant HEX_DIGITS = "0123456789abcdef";
uint8 private constant ADDRESS_LENGTH = 20;
/**
* @dev The `value` string doesn't fit in the specified `length`.
*/
error StringsInsufficientHexLength(uint256 value, uint256 length);
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toStringSigned(int256 value) internal pure returns (string memory) {
return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
uint256 localValue = value;
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = HEX_DIGITS[localValue & 0xf];
localValue >>= 4;
}
if (localValue != 0) {
revert StringsInsufficientHexLength(value, length);
}
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
* representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
}
}
// File: @openzeppelin/contracts/security/ReentrancyGuard.sol
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: erc721a/contracts/IERC721A.sol
// ERC721A Contracts v4.2.3
// Creator: Chiru Labs
pragma solidity ^0.8.4;
/**
* @dev Interface of ERC721A.
*/
interface IERC721A {
/**
* The caller must own the token or be an approved operator.
*/
error ApprovalCallerNotOwnerNorApproved();
/**
* The token does not exist.
*/
error ApprovalQueryForNonexistentToken();
/**
* Cannot query the balance for the zero address.
*/
error BalanceQueryForZeroAddress();
/**
* Cannot mint to the zero address.
*/
error MintToZeroAddress();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* The token does not exist.
*/
error OwnerQueryForNonexistentToken();
/**
* The caller must own the token or be an approved operator.
*/
error TransferCallerNotOwnerNorApproved();
/**
* The token must be owned by `from`.
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the
* ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Cannot transfer to the zero address.
*/
error TransferToZeroAddress();
/**
* The token does not exist.
*/
error URIQueryForNonexistentToken();
/**
* The `quantity` minted with ERC2309 exceeds the safety limit.
*/
error MintERC2309QuantityExceedsLimit();
/**
* The `extraData` cannot be set on an unintialized ownership slot.
*/
error OwnershipNotInitializedForExtraData();
// =============================================================
// STRUCTS
// =============================================================
struct TokenOwnership {
// The address of the owner.
address addr;
// Stores the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
// Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
uint24 extraData;
}
// =============================================================
// TOKEN COUNTERS
// =============================================================
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() external view returns (uint256);
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
// =============================================================
// IERC721
// =============================================================
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables
* (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`,
* checking first that contract recipients are aware of the ERC721 protocol
* to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move
* this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external payable;
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external payable;
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom}
* whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external payable;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external payable;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
// =============================================================
// IERC2309
// =============================================================
/**
* @dev Emitted when tokens in `fromTokenId` to `toTokenId`
* (inclusive) is transferred from `from` to `to`, as defined in the
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
*
* See {_mintERC2309} for more details.
*/
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}
// File: erc721a/contracts/ERC721A.sol
// ERC721A Contracts v4.2.3
// Creator: Chiru Labs
pragma solidity ^0.8.4;
/**
* @dev Interface of ERC721 token receiver.
*/
interface ERC721A__IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
/**
* @title ERC721A
*
* @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
* Non-Fungible Token Standard, including the Metadata extension.
* Optimized for lower gas during batch mints.
*
* Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
* starting from `_startTokenId()`.
*
* Assumptions:
*
* - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
* - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
*/
contract ERC721A is IERC721A {
// Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
struct TokenApprovalRef {
address value;
}
// =============================================================
// CONSTANTS
// =============================================================
// Mask of an entry in packed address data.
uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
// The bit position of `numberMinted` in packed address data.
uint256 private constant _BITPOS_NUMBER_MINTED = 64;
// The bit position of `numberBurned` in packed address data.
uint256 private constant _BITPOS_NUMBER_BURNED = 128;
// The bit position of `aux` in packed address data.
uint256 private constant _BITPOS_AUX = 192;
// Mask of all 256 bits in packed address data except the 64 bits for `aux`.
uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
// The bit position of `startTimestamp` in packed ownership.
uint256 private constant _BITPOS_START_TIMESTAMP = 160;
// The bit mask of the `burned` bit in packed ownership.
uint256 private constant _BITMASK_BURNED = 1 << 224;
// The bit position of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
// The bit mask of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
// The bit position of `extraData` in packed ownership.
uint256 private constant _BITPOS_EXTRA_DATA = 232;
// Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
// The mask of the lower 160 bits for addresses.
uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
// The maximum `quantity` that can be minted with {_mintERC2309}.
// This limit is to prevent overflows on the address data entries.
// For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
// is required to cause an overflow, which is unrealistic.
uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
// The `Transfer` event signature is given by:
// `keccak256(bytes("Transfer(address,address,uint256)"))`.
bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
// =============================================================
// STORAGE
// =============================================================
// The next token ID to be minted.
uint256 private _currentIndex;
// The number of tokens burned.
uint256 private _burnCounter;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned.
// See {_packedOwnershipOf} implementation for details.
//
// Bits Layout:
// - [0..159] `addr`
// - [160..223] `startTimestamp`
// - [224] `burned`
// - [225] `nextInitialized`
// - [232..255] `extraData`
mapping(uint256 => uint256) private _packedOwnerships;
// Mapping owner address to address data.
//
// Bits Layout:
// - [0..63] `balance`
// - [64..127] `numberMinted`
// - [128..191] `numberBurned`
// - [192..255] `aux`
mapping(address => uint256) private _packedAddressData;
// Mapping from token ID to approved address.
mapping(uint256 => TokenApprovalRef) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
// =============================================================
// CONSTRUCTOR
// =============================================================
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
// =============================================================
// TOKEN COUNTING OPERATIONS
// =============================================================
/**
* @dev Returns the starting token ID.
* To change the starting token ID, please override this function.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Returns the next token ID to be minted.
*/
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() public view virtual override returns (uint256) {
// Counter underflow is impossible as _burnCounter cannot be incremented
// more than `_currentIndex - _startTokenId()` times.
unchecked {
return _currentIndex - _burnCounter - _startTokenId();
}
}
/**
* @dev Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view virtual returns (uint256) {
// Counter underflow is impossible as `_currentIndex` does not decrement,
// and it is initialized to `_startTokenId()`.
unchecked {
return _currentIndex - _startTokenId();
}
}
/**
* @dev Returns the total number of tokens burned.
*/
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
// =============================================================
// ADDRESS DATA OPERATIONS
// =============================================================
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens minted by `owner`.
*/
function _numberMinted(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens burned by or on behalf of `owner`.
*/
function _numberBurned(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
*/
function _getAux(address owner) internal view returns (uint64) {
return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
}
/**
* Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
* If there are multiple variables, please pack them into a uint64.
*/
function _setAux(address owner, uint64 aux) internal virtual {
uint256 packed = _packedAddressData[owner];
uint256 auxCasted;
// Cast `aux` with assembly to avoid redundant masking.
assembly {
auxCasted := aux
}
packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
_packedAddressData[owner] = packed;
}
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
// The interface IDs are constants representing the first 4 bytes
// of the XOR of all function selectors in the interface.
// See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
// (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
return
interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
}
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the token collection symbol.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory baseURI = _baseURI();
return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, it can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return '';
}
// =============================================================
// OWNERSHIPS OPERATIONS
// =============================================================
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return address(uint160(_packedOwnershipOf(tokenId)));
}
/**
* @dev Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around over time.
*/
function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnershipOf(tokenId));
}
/**
* @dev Returns the unpacked `TokenOwnership` struct at `index`.
*/
function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnerships[index]);
}
/**
* @dev Initializes the ownership slot minted at `index` for efficiency purposes.
*/
function _initializeOwnershipAt(uint256 index) internal virtual {
if (_packedOwnerships[index] == 0) {
_packedOwnerships[index] = _packedOwnershipOf(index);
}
}
/**
* Returns the packed ownership data of `tokenId`.
*/
function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {
uint256 curr = tokenId;
unchecked {
if (_startTokenId() <= curr)
if (curr < _currentIndex) {
uint256 packed = _packedOwnerships[curr];
// If not burned.
if (packed & _BITMASK_BURNED == 0) {
// Invariant:
// There will always be an initialized ownership slot
// (i.e. `ownership.addr != address(0) && ownership.burned == false`)
// before an unintialized ownership slot
// (i.e. `ownership.addr == address(0) && ownership.burned == false`)
// Hence, `curr` will not underflow.
//
// We can directly compare the packed value.
// If the address is zero, packed will be zero.
while (packed == 0) {
packed = _packedOwnerships[--curr];
}
return packed;
}
}
}
revert OwnerQueryForNonexistentToken();
}
/**
* @dev Returns the unpacked `TokenOwnership` struct from `packed`.
*/
function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
ownership.addr = address(uint160(packed));
ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
ownership.burned = packed & _BITMASK_BURNED != 0;
ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
}
/**
* @dev Packs ownership data into a single uint256.
*/
function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
}
}
/**
* @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
*/
function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
// For branchless setting of the `nextInitialized` flag.
assembly {
// `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
}
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) public payable virtual override {
address owner = ownerOf(tokenId);
if (_msgSenderERC721A() != owner)
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
revert ApprovalCallerNotOwnerNorApproved();
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId].value;
}
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_operatorApprovals[_msgSenderERC721A()][operator] = approved;
emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
}
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted. See {_mint}.
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return
_startTokenId() <= tokenId &&
tokenId < _currentIndex && // If within bounds,
_packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.
}
/**
* @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
*/
function _isSenderApprovedOrOwner(
address approvedAddress,
address owner,
address msgSender
) private pure returns (bool result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
msgSender := and(msgSender, _BITMASK_ADDRESS)
// `msgSender == owner || msgSender == approvedAddress`.
result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
}
}
/**
* @dev Returns the storage slot and value for the approved address of `tokenId`.
*/
function _getApprovedSlotAndAddress(uint256 tokenId)
private
view
returns (uint256 approvedAddressSlot, address approvedAddress)
{
TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
// The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
assembly {
approvedAddressSlot := tokenApproval.slot
approvedAddress := sload(approvedAddressSlot)
}
}
// =============================================================
// TRANSFER OPERATIONS
// =============================================================
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// We can directly increment and decrement the balances.
--_packedAddressData[from]; // Updates: `balance -= 1`.
++_packedAddressData[to]; // Updates: `balance += 1`.
// Updates:
// - `address` to the next owner.
// - `startTimestamp` to the timestamp of transfering.
// - `burned` to `false`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public payable virtual override {
safeTransferFrom(from, to, tokenId, '');
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public payable virtual override {
transferFrom(from, to, tokenId);
if (to.code.length != 0)
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
/**
* @dev Hook that is called before a set of serially-ordered token IDs
* are about to be transferred. This includes minting.
* And also called before burning one token.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token IDs
* have been transferred. This includes minting.
* And also called after one token has been burned.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
* transferred to `to`.
* - When `from` is zero, `tokenId` has been minted for `to`.
* - When `to` is zero, `tokenId` has been burned by `from`.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
*
* `from` - Previous owner of the given token ID.
* `to` - Target address that will receive the token.
* `tokenId` - Token ID to be transferred.
* `_data` - Optional data to send along with the call.
*
* Returns whether the call correctly returned the expected magic value.
*/
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
bytes4 retval
) {
return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
// =============================================================
// MINT OPERATIONS
// =============================================================
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event for each mint.
*/
function _mint(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// `balance` and `numberMinted` have a maximum limit of 2**64.
// `tokenId` has a maximum limit of 2**256.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
uint256 toMasked;
uint256 end = startTokenId + quantity;
// Use assembly to loop and emit the `Transfer` event for gas savings.
// The duplicated `log4` removes an extra check and reduces stack juggling.
// The assembly, together with the surrounding Solidity code, have been
// delicately arranged to nudge the compiler into producing optimized opcodes.
assembly {
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
toMasked := and(to, _BITMASK_ADDRESS)
// Emit the `Transfer` event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // `address(0)`.
toMasked, // `to`.
startTokenId // `tokenId`.
)
// The `iszero(eq(,))` check ensures that large values of `quantity`
// that overflows uint256 will make the loop run out of gas.
// The compiler will optimize the `iszero` away for performance.
for {
let tokenId := add(startTokenId, 1)
} iszero(eq(tokenId, end)) {
tokenId := add(tokenId, 1)
} {
// Emit the `Transfer` event. Similar to above.
log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)
}
}
if (toMasked == 0) revert MintToZeroAddress();
_currentIndex = end;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* This function is intended for efficient minting only during contract creation.
*
* It emits only one {ConsecutiveTransfer} as defined in
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
* instead of a sequence of {Transfer} event(s).
*
* Calling this function outside of contract creation WILL make your contract
* non-compliant with the ERC721 standard.
* For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
* {ConsecutiveTransfer} event is only permissible during contract creation.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {ConsecutiveTransfer} event.
*/
function _mintERC2309(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are unrealistic due to the above check for `quantity` to be below the limit.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);
_currentIndex = startTokenId + quantity;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* See {_mint}.
*
* Emits a {Transfer} event for each mint.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
_mint(to, quantity);
unchecked {
if (to.code.length != 0) {
uint256 end = _currentIndex;
uint256 index = end - quantity;
do {
if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
} while (index < end);
// Reentrancy protection.
if (_currentIndex != end) revert();
}
}
}
/**
* @dev Equivalent to `_safeMint(to, quantity, '')`.
*/
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, '');
}
// =============================================================
// BURN OPERATIONS
// =============================================================
/**
* @dev Equivalent to `_burn(tokenId, false)`.
*/
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
address from = address(uint160(prevOwnershipPacked));
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
if (approvalCheck) {
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// Updates:
// - `balance -= 1`.
// - `numberBurned += 1`.
//
// We can directly decrement the balance, and increment the number burned.
// This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
_packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
// Updates:
// - `address` to the last owner.
// - `startTimestamp` to the timestamp of burning.
// - `burned` to `true`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
from,
(_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
// Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
unchecked {
_burnCounter++;
}
}
// =============================================================
// EXTRA DATA OPERATIONS
// =============================================================
/**
* @dev Directly sets the extra data for the ownership data `index`.
*/
function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
uint256 packed = _packedOwnerships[index];
if (packed == 0) revert OwnershipNotInitializedForExtraData();
uint256 extraDataCasted;
// Cast `extraData` with assembly to avoid redundant masking.
assembly {
extraDataCasted := extraData
}
packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
_packedOwnerships[index] = packed;
}
/**
* @dev Called during each token transfer to set the 24bit `extraData` field.
* Intended to be overridden by the cosumer contract.
*
* `previousExtraData` - the value of `extraData` before transfer.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _extraData(
address from,
address to,
uint24 previousExtraData
) internal view virtual returns (uint24) {}
/**
* @dev Returns the next extra data for the packed ownership data.
* The returned result is shifted into position.
*/
function _nextExtraData(
address from,
address to,
uint256 prevOwnershipPacked
) private view returns (uint256) {
uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
}
// =============================================================
// OTHER OPERATIONS
// =============================================================
/**
* @dev Returns the message sender (defaults to `msg.sender`).
*
* If you are writing GSN compatible contracts, you need to override this function.
*/
function _msgSenderERC721A() internal view virtual returns (address) {
return msg.sender;
}
/**
* @dev Converts a uint256 to its ASCII string decimal representation.
*/
function _toString(uint256 value) internal pure virtual returns (string memory str) {
assembly {
// The maximum value of a uint256 contains 78 digits (1 byte per digit), but
// we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
// We will need 1 word for the trailing zeros padding, 1 word for the length,
// and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
let m := add(mload(0x40), 0xa0)
// Update the free memory pointer to allocate.
mstore(0x40, m)
// Assign the `str` to the end.
str := sub(m, 0x20)
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end of the memory to calculate the length later.
let end := str
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
// prettier-ignore
for { let temp := value } 1 {} {
str := sub(str, 1)
// Write the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(str, add(48, mod(temp, 10)))
// Keep dividing `temp` until zero.
temp := div(temp, 10)
// prettier-ignore
if iszero(temp) { break }
}
let length := sub(end, str)
// Move the pointer 32 bytes leftwards to make room for the length.
str := sub(str, 0x20)
// Store the length.
mstore(str, length)
}
}
}
// JackStormsNFTCollection Contract
// Creator: ProfessorSHIB
pragma solidity >=0.8.9 <0.9.0;
interface IPopularContract {
function balanceOf(address owner) external view returns (uint256 balance);
}
contract JackStormsNFTCollection is ERC721A, Ownable, ReentrancyGuard{
using Strings for uint256;
using SafeMath for uint256;
uint256 public WhitelistSaleStartTimestamp = 1701968400;
uint256 public PublicSaleStartTimestamp = 1701986400;
uint256 public ActualCollection = 1;
uint256 public ActualCollectionSize;
uint256 public MintableSupply;
uint256 public constant MaxNFTSupply = 1000;
uint256 public MaxMintAmountPerTx = 5;
uint256 public Cost; // in WEI
uint256 public Percentage; // for example 75 = 75%
address public PayoutAddress1;
address public PayoutAddress2;
address public WhitelistedContract1;
address public WhitelistedContract2;
address public WhitelistedContract3;
address public WhitelistedContract4;
uint256 public MaxMintWhitelist = 5;
string public uriPrefix = '';
string public uriSuffix = '.json';
string public HiddenMetadataUri;
uint256 public RevealedAmount = 0;
/**
* Compliance MaxNFTSupply and MintableSupply
*/
modifier CollectionCompliance(uint256 _AddAmount) {
require(MintableSupply+_AddAmount <= MaxNFTSupply, 'Invalid Collection size!');
_;
}
modifier mintCompliance(uint256 _mintAmount) {
require(_mintAmount > 0, 'Invalid mint amount!');
require(totalSupply() + _mintAmount <= MintableSupply, 'Max supply exceeded!');
_;
}
constructor(
address _InitialOwner,
uint256 _InitalSupply,
uint256 _Cost, // in Wei
address _PayoutAddress1,
uint256 _Percentage,
address _WhitelistedContract1,
address _WhitelistedContract2,
string memory _hiddenMetadataUri
)
ERC721A('Jack Storms NFT Collection', 'JSNC') Ownable(_InitialOwner) {
PayoutAddress1 = _PayoutAddress1;
PayoutAddress2 = _InitialOwner;
Percentage = _Percentage;
Cost = _Cost;
WhitelistedContract1 = _WhitelistedContract1;
WhitelistedContract2 = _WhitelistedContract2;
HiddenMetadataUri = _hiddenMetadataUri;
ActualCollectionSize = _InitalSupply;
MintableSupply = _InitalSupply;
}
/**
* Change Whitelist settings
*/
function setWhitelistedContract1(address _WhitelistedContract1) public onlyOwner {
WhitelistedContract1 = _WhitelistedContract1;
}
function setWhitelistedContract2(address _WhitelistedContract2) public onlyOwner {
WhitelistedContract2 = _WhitelistedContract2;
}
function setWhitelistedContract3(address _WhitelistedContract3) public onlyOwner {
WhitelistedContract3 = _WhitelistedContract3;
}
function setWhitelistedContract4(address _WhitelistedContract4) public onlyOwner {
WhitelistedContract4 = _WhitelistedContract4;
}
function setMaxMintWhitelist(uint _MaxMintWhitelist) public onlyOwner {
MaxMintWhitelist = _MaxMintWhitelist;
}
/**
* Change sale start time
*/
function setWhitelistSaleStartTimestamp(uint256 _WhitelistSaleStartTimestamp) public onlyOwner {
WhitelistSaleStartTimestamp = _WhitelistSaleStartTimestamp;
}
function setPublicSaleStartTimestamp(uint256 _PublicSaleStartTimestamp) public onlyOwner {
PublicSaleStartTimestamp = _PublicSaleStartTimestamp;
}
/**
* Change max mint amount
*/
function setMaxMintAmountPerTx(uint256 _MaxMintAmountPerTx) public onlyOwner {
MaxMintAmountPerTx = _MaxMintAmountPerTx;
}
/**
* Change mint price
*/
function setMintPrice(uint256 _MintPrice) public onlyOwner {
Cost = _MintPrice;
}
/**
* Manage Collections (MaxNFTSupply is fix)
*/
function addNewCollection(uint256 _CollectionSize) public CollectionCompliance(_CollectionSize) onlyOwner {
ActualCollection = ActualCollection+1;
ActualCollectionSize = _CollectionSize;
MintableSupply = MintableSupply+_CollectionSize;
}
function setActualCollection(uint256 _ActualCollection) public onlyOwner {
ActualCollection = _ActualCollection;
}
function increaseActualCollectionSize(uint256 _IncreaseAmount) public CollectionCompliance(_IncreaseAmount) onlyOwner {
ActualCollectionSize = ActualCollectionSize+_IncreaseAmount;
MintableSupply = MintableSupply+_IncreaseAmount;
}
function reduceActualCollectionSize(uint256 _ReduceAmount) public onlyOwner {
require(MintableSupply-_ReduceAmount >= totalSupply(),'Token already minted');
ActualCollectionSize = ActualCollectionSize-_ReduceAmount;
MintableSupply = MintableSupply-_ReduceAmount;
}
/**
* Mint NFT
*/
function mint(uint256 _mintAmount) public payable mintCompliance(_mintAmount) {
require(_mintAmount <= MaxMintAmountPerTx, 'Invalid mint amount!');
require(msg.value >= Cost * _mintAmount, 'Insufficient funds!');
if(block.timestamp >= WhitelistSaleStartTimestamp && block.timestamp < PublicSaleStartTimestamp)
{
require(IPopularContract(WhitelistedContract1).balanceOf(msg.sender) > 0 || IPopularContract(WhitelistedContract2).balanceOf(msg.sender) > 0 || IPopularContract(WhitelistedContract3).balanceOf(msg.sender) > 0 || IPopularContract(WhitelistedContract4).balanceOf(msg.sender) > 0,'You are not whitelisted');
require(balanceOf(msg.sender) + _mintAmount <= MaxMintWhitelist,'Max Mint per wallet reached');
} else {
require(block.timestamp >= PublicSaleStartTimestamp, 'Sale has not started');
}
_safeMint(_msgSender(), _mintAmount);
}
function mintForAddress(uint256 _mintAmount, address _receiver) public mintCompliance(_mintAmount) onlyOwner {
_safeMint(_receiver, _mintAmount);
}
function _startTokenId() internal view virtual override returns (uint256) {
return 1;
}
/**
* Uri settings
*/
function _baseURI() internal view virtual override returns (string memory) {
return uriPrefix;
}
function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
require(_exists(_tokenId), 'ERC721Metadata: URI query for nonexistent token');
if (RevealedAmount < _tokenId) {
return HiddenMetadataUri;}
string memory currentBaseURI = _baseURI();
return bytes(currentBaseURI).length > 0
? string(abi.encodePacked(currentBaseURI, _tokenId.toString(), uriSuffix))
: '';
}
function setHiddenMetadataUri(string memory _hiddenMetadataUri) public onlyOwner {
HiddenMetadataUri = _hiddenMetadataUri;
}
function setUriPrefix(string memory _uriPrefix) public onlyOwner {
uriPrefix = _uriPrefix;
}
function setUriSuffix(string memory _uriSuffix) public onlyOwner {
uriSuffix = _uriSuffix;
}
/**
* Set reveal status
*/
function setRevealedAmount(uint256 _revealedAmount) public onlyOwner {
RevealedAmount = _revealedAmount;
}
/**
* Withdraw settings
*/
function setPercentage(uint256 _Percentage) public onlyOwner {
Percentage = _Percentage;
}
function setPayoutaddress1(address _PayoutAddress1) public onlyOwner {
PayoutAddress1 = _PayoutAddress1;
}
function setPayoutaddress2(address _PayoutAddress2) public onlyOwner {
PayoutAddress2 = _PayoutAddress2;
}
function withdraw() public nonReentrant onlyOwner {
// This will send the specified percentage to payoutaddress1.
(bool hs, ) = payable(PayoutAddress1).call{value: address(this).balance * Percentage / 100}('');
require(hs);
// This will transfer the remaining contract balance to payoutaddress2.
(bool os, ) = payable(PayoutAddress2).call{value: address(this).balance}('');
require(os);
}
} | [{"inputs":[{"internalType":"address","name":"_InitialOwner","type":"address"},{"internalType":"uint256","name":"_InitalSupply","type":"uint256"},{"internalType":"uint256","name":"_Cost","type":"uint256"},{"internalType":"address","name":"_PayoutAddress1","type":"address"},{"internalType":"uint256","name":"_Percentage","type":"uint256"},{"internalType":"address","name":"_WhitelistedContract1","type":"address"},{"internalType":"address","name":"_WhitelistedContract2","type":"address"},{"internalType":"string","name":"_hiddenMetadataUri","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintERC2309QuantityExceedsLimit","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"ActualCollection","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ActualCollectionSize","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"Cost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"HiddenMetadataUri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MaxMintAmountPerTx","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MaxMintWhitelist","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MaxNFTSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MintableSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PayoutAddress1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PayoutAddress2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"Percentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PublicSaleStartTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"RevealedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WhitelistSaleStartTimestamp","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WhitelistedContract1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WhitelistedContract2","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WhitelistedContract3","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WhitelistedContract4","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_CollectionSize","type":"uint256"}],"name":"addNewCollection","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_IncreaseAmount","type":"uint256"}],"name":"increaseActualCollectionSize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintAmount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_mintAmount","type":"uint256"},{"internalType":"address","name":"_receiver","type":"address"}],"name":"mintForAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_ReduceAmount","type":"uint256"}],"name":"reduceActualCollectionSize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_ActualCollection","type":"uint256"}],"name":"setActualCollection","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_hiddenMetadataUri","type":"string"}],"name":"setHiddenMetadataUri","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_MaxMintAmountPerTx","type":"uint256"}],"name":"setMaxMintAmountPerTx","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_MaxMintWhitelist","type":"uint256"}],"name":"setMaxMintWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_MintPrice","type":"uint256"}],"name":"setMintPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_PayoutAddress1","type":"address"}],"name":"setPayoutaddress1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_PayoutAddress2","type":"address"}],"name":"setPayoutaddress2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_Percentage","type":"uint256"}],"name":"setPercentage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_PublicSaleStartTimestamp","type":"uint256"}],"name":"setPublicSaleStartTimestamp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_revealedAmount","type":"uint256"}],"name":"setRevealedAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uriPrefix","type":"string"}],"name":"setUriPrefix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uriSuffix","type":"string"}],"name":"setUriSuffix","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_WhitelistSaleStartTimestamp","type":"uint256"}],"name":"setWhitelistSaleStartTimestamp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_WhitelistedContract1","type":"address"}],"name":"setWhitelistedContract1","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_WhitelistedContract2","type":"address"}],"name":"setWhitelistedContract2","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_WhitelistedContract3","type":"address"}],"name":"setWhitelistedContract3","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_WhitelistedContract4","type":"address"}],"name":"setWhitelistedContract4","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uriPrefix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uriSuffix","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.23+commit.f704f362 | false | 200 | 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 | Default | MIT | false | ipfs://26746c0b6704a16fe8e23dcdb7038bf342b1d59a4e7a1eeb85926e73a44902f3 | ||
Forwarder | 0xae3095a8a86f33487cc74cd44a1a2e8b26570981 | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
IFOByProxy | 0xa3074be87e6fffe7226e53a4cdafced998aaf88d | Solidity | // File: @pancakeswap/pancake-swap-lib/contracts/math/SafeMath.sol
pragma solidity >=0.4.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, 'SafeMath: addition overflow');
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, 'SafeMath: subtraction overflow');
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, 'SafeMath: multiplication overflow');
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, 'SafeMath: division by zero');
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, 'SafeMath: modulo by zero');
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint256 y) internal pure returns (uint256 z) {
if (y > 3) {
z = y;
uint256 x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: @pancakeswap/pancake-swap-lib/contracts/token/BEP20/IBEP20.sol
// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.4.0;
interface IBEP20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the token decimals.
*/
function decimals() external view returns (uint8);
/**
* @dev Returns the token symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the token name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the bep token owner.
*/
function getOwner() external view returns (address);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address _owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: @pancakeswap/pancake-swap-lib/contracts/utils/Address.sol
pragma solidity ^0.6.2;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly {
codehash := extcodehash(account)
}
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, 'Address: insufficient balance');
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{value: amount}('');
require(success, 'Address: unable to send value, recipient may have reverted');
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, 'Address: low-level call failed');
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, 'Address: low-level call with value failed');
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, 'Address: insufficient balance for call');
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(
address target,
bytes memory data,
uint256 weiValue,
string memory errorMessage
) private returns (bytes memory) {
require(isContract(target), 'Address: call to non-contract');
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{value: weiValue}(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @pancakeswap/pancake-swap-lib/contracts/token/BEP20/SafeBEP20.sol
pragma solidity ^0.6.0;
/**
* @title SafeBEP20
* @dev Wrappers around BEP20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeBEP20 for IBEP20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeBEP20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(
IBEP20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IBEP20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IBEP20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(
IBEP20 token,
address spender,
uint256 value
) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
'SafeBEP20: approve from non-zero to non-zero allowance'
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IBEP20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IBEP20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(
value,
'SafeBEP20: decreased allowance below zero'
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IBEP20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, 'SafeBEP20: low-level call failed');
if (returndata.length > 0) {
// Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), 'SafeBEP20: BEP20 operation did not succeed');
}
}
}
// File: @pancakeswap/pancake-swap-lib/contracts/utils/ReentrancyGuard.sol
pragma solidity ^0.6.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor () internal {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// File: @pancakeswap/pancake-swap-lib/contracts/proxy/Initializable.sol
pragma solidity >=0.4.24 <0.7.0;
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Modifier to protect an initializer function from being invoked twice.
*/
modifier initializer() {
require(_initializing || _isConstructor() || !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
}
}
/// @dev Returns true if and only if the function is running in the constructor
function _isConstructor() private view returns (bool) {
// extcodesize checks the size of the code stored in an address, and
// address returns the current address. Since the code is still not
// deployed when running a constructor, any checks on its code size will
// yield zero, making it an effective way to detect if a contract is
// under construction or not.
address self = address(this);
uint256 cs;
// solhint-disable-next-line no-inline-assembly
assembly { cs := extcodesize(self) }
return cs == 0;
}
}
// File: contracts/IFOByProxy.sol
pragma solidity 0.6.12;
contract IFOByProxy is ReentrancyGuard, Initializable {
using SafeMath for uint256;
using SafeBEP20 for IBEP20;
// Info of each user.
struct UserInfo {
uint256 amount; // How many tokens the user has provided.
bool claimed; // default false
}
// admin address
address public adminAddress;
// The offering token
IBEP20 public offeringToken;
// The block number when IFO starts
uint256 public startBlock;
// The block number when IFO ends
uint256 public endBlock;
// total amount of raising tokens that have already raised
uint256 public totalAmount;
// address => amount
mapping (address => UserInfo) public userInfo;
// participators
address[] public addressList;
bool public withdrawals = false;
uint256 public maxCap = 200000000000000000000; // 200 eth
uint256 public minCap = 0;
event Deposit(address indexed user, uint256 amount);
event Harvest(address indexed user, uint256 offeringAmount, uint256 excessAmount);
constructor() public {
}
function initialize(
IBEP20 _offeringToken,
uint256 _startBlock,
uint256 _endBlock,
address _adminAddress
) public initializer {
offeringToken = _offeringToken;
startBlock = _startBlock;
endBlock = _endBlock;
totalAmount = 0;
adminAddress = _adminAddress;
whitelist[0x02734122EdCdC55B12372D0612AFe3FAc23fF393] = true;
whitelist[0x0445C3BdB39dea2a6E07F8659a14FA9526B8651d] = true;
whitelist[0x051A03e98E3349C730af5daf21CFb44BBe6bAC28] = true;
whitelist[0x05907bdAAc108DE5Ee908a07157496FB9c0134e2] = true;
whitelist[0x06149A7fCCFa4765083307ffc409758aF80d98d6] = true;
whitelist[0x07730404243E7d153bBb9c5D9518D8d145bd7E44] = true;
whitelist[0x09f641E9f621AdFD73D1415021f0120a52E1D045] = true;
whitelist[0x0B1853d755624559CA20B87dEc626ca1A8C0942f] = true;
whitelist[0x0Beaef48eF38Be2FF38d3b02948733bf38B9B35e] = true;
whitelist[0x0e5539BfF2633BA345389c4B2000850C922a8F07] = true;
whitelist[0x0e80A44EA5A10C63b78107FFcC4A8bA6eDDf93eA] = true;
whitelist[0x10c8aC60236E2Dea37561821D6B5A0fe69eFA5Bd] = true;
whitelist[0x1337328b848D47000b7a701C600251d80158efCe] = true;
whitelist[0x16d63458a22b8F3864E0522408e2828A11664f4d] = true;
whitelist[0x16FF4080fe3A3C6B4Ea92F96C7bda1B6a95cacf8] = true;
whitelist[0x18dB6EF107cA83cF7DF14580B9e8D1d9c061638b] = true;
whitelist[0x1B52AAC4f1e864018bAdd2cF58e181757F3B1EfB] = true;
whitelist[0x1CDf5FCA9803DE8592769178c26F56Fef8E9a8bb] = true;
whitelist[0x1dCd72eD9a8FBDC3F4D18626c15524a9e369a43C] = true;
whitelist[0x1E56AbFa25282B61838eACEdE6705C23Fe94FA45] = true;
whitelist[0x2124d2CAbf25A0b9A163A5cd4Ca28796158f2Fe6] = true;
whitelist[0x220d482B44F0A5048CbA7719048BdCBfD91B3c6a] = true;
whitelist[0x2221cAeec3187B54F7e733b8b00ADE1e8393518B] = true;
whitelist[0x2247ecd0CA850Fd1B0c48d66e140ee229aF9d549] = true;
whitelist[0x23FDDfBcF2923e879663Dc1503C103B1e287F89F] = true;
whitelist[0x242D8D4611a66C7ccE4517ED4f10e05D56CedEaB] = true;
whitelist[0x2445cb8DAa793759829Cf50897b52e81C8365dEB] = true;
whitelist[0x24f7E59CFc8a5AaC7544f473B2F9d929BBCAF1c4] = true;
whitelist[0x260DDd66A2FA67090537832Dde871b249c27215E] = true;
whitelist[0x265ECD00bC1371094D55525f6fFf66Cd83e6bDa9] = true;
whitelist[0x26fEfFf904F058522F55d560F6B4a72815a889E5] = true;
whitelist[0x27C1dA2e992dF881D473d497aEC43B690D626fE9] = true;
whitelist[0x284509D780B82683BB96B63Ccc7f2c056bC8Ebe1] = true;
whitelist[0x287Ea4d4e1c5A5e4557E403104BA624eE4dE1B34] = true;
whitelist[0x28B85fB16426AEE4239f7352dAeabc008cE356F0] = true;
whitelist[0x29E2BbB64a06d3b66f6B3d9aAb6B80eB1784DF3D] = true;
whitelist[0x2ba2060F75E705784e24cE94753bf4E2B566b98A] = true;
whitelist[0x2Bc6150A8a39683118F1a673886d83D2CC63a9C7] = true;
whitelist[0x2C166c94F131f0362fd5bEb589b3Bb326173066b] = true;
whitelist[0x2c5334c819AE21D3098B78B0a335C27E1249DD02] = true;
whitelist[0x2e83794Ea9eaBe082F15754F95f64B9025186123] = true;
whitelist[0x2f95A9BCef140c2AD1Cd746b156218B731E7C140] = true;
whitelist[0x3249ED789279906FBBf0014cDC2EACD413955799] = true;
whitelist[0x337bE3C4ED94a0045760a479A52f0864C9796507] = true;
whitelist[0x337C9cDDfe6681c1eA2D7dA67Dd4380227eF993D] = true;
whitelist[0x3468Da3F75260bcba3EBDef7b5DDE9FB573ccdEE] = true;
whitelist[0x34972fCF7EDcd4dFdfB972381798dC395C59aA04] = true;
whitelist[0x35153C3D95856370D755c0d436Be8ca74fC8C881] = true;
whitelist[0x364fFA17b19D9869feC9da25c6C1841b62ACa5AC] = true;
whitelist[0x387fCB4451f2E0C8AC9dB174C2C5846458BE7Dd6] = true;
whitelist[0x390ECe71B42b7E2a898db78913da5854Be7a028A] = true;
whitelist[0x39b832a19b175F5e31D588C8850D54b4f854a43e] = true;
whitelist[0x40A6E451225552c663E9b1450C80cE2e7a9215D2] = true;
whitelist[0x40c747a05Ab6Efd381E1721A098E68D15C632732] = true;
whitelist[0x40CA1f0D5d3A4Dd6Ad083dA4b8F820206ADDe25f] = true;
whitelist[0x414F2eef7552E13D9E986A2078e9FdEeAd1a87fA] = true;
whitelist[0x4575C2359882836526c522De74c5CFf45cF109F6] = true;
whitelist[0x458985A29DfDbe4E07529bf1301A8417ac97Eb51] = true;
whitelist[0x460b26B95b251B477e2bc52aB731C70F42299adC] = true;
whitelist[0x47672fdB2468662059C112D85717C98cDd705315] = true;
whitelist[0x47866cB4ed65BFE68436B1174c060C58c09fFE56] = true;
whitelist[0x496418d83F07870427eFEDb082d397511494026f] = true;
whitelist[0x4a9f3Ba63301a3F6c86D7054ff8180338981C91F] = true;
whitelist[0x4b76968cc449CD04BE46FBBB65DBE7032BBab00e] = true;
whitelist[0x4Bc643f541A98765e38DeB4956f55a15576C63BB] = true;
whitelist[0x4EAd3bbab0f41b310D00985701aCA25639234A94] = true;
whitelist[0x506ba5C8f95001EA4cc1efb47d605CC5B8F56A92] = true;
whitelist[0x521Fb6CdB08b67E25Ee6987445A3892b15595aee] = true;
}
modifier onlyAdmin() {
require(msg.sender == adminAddress, "admin: wut?");
_;
}
function setEndBlock(uint256 _block) public onlyAdmin {
endBlock = _block;
}
function setWithdrawal(bool _status) public onlyAdmin {
withdrawals = _status;
}
function setMaxCap(uint256 _max) public onlyAdmin {
maxCap = _max;
}
function setMinCap(uint256 _min) public onlyAdmin {
minCap = _min;
}
mapping(address => bool) public whitelist;
function addToWhitelist(address[] memory addresses) public onlyAdmin {
for(uint i=0; i<addresses.length; i++){
whitelist[addresses[i]] = true;
}
}
function blacklistFromDeposit(address[] memory addresses) public onlyAdmin {
for(uint i=0; i<addresses.length; i++){
whitelist[addresses[i]] = false;
}
}
function deposit() public payable {
require ((block.number > startBlock || whitelist[msg.sender] == true) && block.number < endBlock, 'not presale time');
require (msg.value >= 100000000000000000, 'need _amount > 0.1 eth');
require( totalAmount.add(msg.value) <= maxCap, 'amount beyond max cap');
require(userInfo[msg.sender].amount.add(msg.value) <= 2 ether, 'amount limited at 2eth max/account');
// usdc.safeTransferFrom(address(msg.sender), address(this), _amount);
if (userInfo[msg.sender].amount == 0) {
addressList.push(address(msg.sender));
}
userInfo[msg.sender].amount = userInfo[msg.sender].amount.add(msg.value);
totalAmount = totalAmount.add(msg.value);
emit Deposit(msg.sender, msg.value);
}
function harvest() public nonReentrant {
require(withdrawals == true, 'not withdrawal time');
require (block.number > endBlock, 'not harvest time');
require (userInfo[msg.sender].amount > 0, 'have you participated?');
require (!userInfo[msg.sender].claimed, 'nothing to harvest');
uint256 contribution = userInfo[msg.sender].amount;
uint256 offeringTokenAmount = contribution * 160000; // 1 eth is 160k tokens
offeringToken.safeTransfer(address(msg.sender), offeringTokenAmount);
userInfo[msg.sender].claimed = true;
emit Harvest(msg.sender, offeringTokenAmount, 0);
}
function getAddressListLength() external view returns(uint256) {
return addressList.length;
}
function finalWithdraw() public onlyAdmin {
uint256 amount = address(this).balance;
require(amount > 0, "Nothing to withdraw; contract balance empty");
address _owner = msg.sender;
(bool sent, ) = _owner.call{value: amount}("");
require(sent, "Failed to send Ether");
}
function finalWithdrawTokensIfAny(uint256 amount) public onlyAdmin {
offeringToken.safeTransfer(address(msg.sender), amount);
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"offeringAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"excessAmount","type":"uint256"}],"name":"Harvest","type":"event"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"}],"name":"addToWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"addressList","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"adminAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"}],"name":"blacklistFromDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"endBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"finalWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"finalWithdrawTokensIfAny","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAddressListLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"harvest","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IBEP20","name":"_offeringToken","type":"address"},{"internalType":"uint256","name":"_startBlock","type":"uint256"},{"internalType":"uint256","name":"_endBlock","type":"uint256"},{"internalType":"address","name":"_adminAddress","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"maxCap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minCap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"offeringToken","outputs":[{"internalType":"contract IBEP20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_block","type":"uint256"}],"name":"setEndBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_max","type":"uint256"}],"name":"setMaxCap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_min","type":"uint256"}],"name":"setMinCap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_status","type":"bool"}],"name":"setWithdrawal","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userInfo","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bool","name":"claimed","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"whitelist","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawals","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}] | v0.6.12+commit.27d51765 | true | 1 | Default | None | false | ipfs://a098cf0c89ee1949f4e2d8073d9f31993cf61050d1102108bbfb79a0b3684e7f | |||
UniswapV2Pair | 0xda14083e35bcd48f08912423eeed83ce62e3df4f | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
PIG | 0xdcdd509f158c5c35630623e9e231761bfe6b5209 | Solidity | // SPDX-License-Identifier: MIT
pragma solidity =0.8.10 >=0.8.10 >=0.8.0 <0.9.0;
pragma experimental ABIEncoderV2;
////// lib/openzeppelin-contracts/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.0 (utils/Context.sol)
/* pragma solidity ^0.8.0; */
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
////// lib/openzeppelin-contracts/contracts/access/Ownable.sol
// OpenZeppelin Contracts v4.4.0 (access/Ownable.sol)
/* pragma solidity ^0.8.0; */
/* import "../utils/Context.sol"; */
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
////// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)
/* pragma solidity ^0.8.0; */
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
////// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC20/extensions/IERC20Metadata.sol)
/* pragma solidity ^0.8.0; */
/* import "../IERC20.sol"; */
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
////// lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC20/ERC20.sol)
/* pragma solidity ^0.8.0; */
/* import "./IERC20.sol"; */
/* import "./extensions/IERC20Metadata.sol"; */
/* import "../../utils/Context.sol"; */
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
////// lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts v4.4.0 (utils/math/SafeMath.sol)
/* pragma solidity ^0.8.0; */
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
////// src/IUniswapV2Factory.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function createPair(address tokenA, address tokenB)
external
returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
////// src/IUniswapV2Pair.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
////// src/IUniswapV2Router02.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
/* pragma solidity >=0.8.10; */
/* import {IUniswapV2Router02} from "./IUniswapV2Router02.sol"; */
/* import {IUniswapV2Factory} from "./IUniswapV2Factory.sol"; */
/* import {IUniswapV2Pair} from "./IUniswapV2Pair.sol"; */
/* import {IERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; */
/* import {ERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol"; */
/* import {Ownable} from "lib/openzeppelin-contracts/contracts/access/Ownable.sol"; */
/* import {SafeMath} from "lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol"; */
contract PIG is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
address public constant deadAddress = address(0xdead);
bool private swapping;
address public marketingWallet;
address public devWallet;
uint256 public maxTransactionAmount;
uint256 public swapTokensAtAmount;
uint256 public maxWallet;
uint256 public percentForLPBurn = 25; // 25 = .25%
bool public lpBurnEnabled = true;
uint256 public lpBurnFrequency = 3600 seconds;
uint256 public lastLpBurnTime;
uint256 public manualBurnFrequency = 30 minutes;
uint256 public lastManualLpBurnTime;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public swapEnabled = false;
// Anti-bot and anti-whale mappings and variables
mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch
bool public transferDelayEnabled = true;
uint256 public buyTotalFees;
uint256 public buyMarketingFee;
uint256 public buyLiquidityFee;
uint256 public buyDevFee;
uint256 public sellTotalFees;
uint256 public sellMarketingFee;
uint256 public sellLiquidityFee;
uint256 public sellDevFee;
uint256 public tokensForMarketing;
uint256 public tokensForLiquidity;
uint256 public tokensForDev;
/******************/
// exlcude from fees and max transaction amount
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) public _isExcludedMaxTransactionAmount;
// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
mapping(address => bool) public automatedMarketMakerPairs;
event UpdateUniswapV2Router(
address indexed newAddress,
address indexed oldAddress
);
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event marketingWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event devWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event AutoNukeLP();
event ManualNukeLP();
constructor() ERC20("Pig Coin", "PIG") {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
excludeFromMaxTransaction(address(_uniswapV2Router), true);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
excludeFromMaxTransaction(address(uniswapV2Pair), true);
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
uint256 _buyMarketingFee = 0;
uint256 _buyLiquidityFee = 0;
uint256 _buyDevFee = 0;
uint256 _sellMarketingFee = 0;
uint256 _sellLiquidityFee = 0;
uint256 _sellDevFee = 0;
uint256 totalSupply = 1_000_000_000_000_000 * 1e18;
maxTransactionAmount = 1_000_000_000_000_000 * 1e18;
maxWallet = 1_000_000_000_000_000 * 1e18;
swapTokensAtAmount = (totalSupply * 5) / 10000; // 0.05% swap wallet
buyMarketingFee = _buyMarketingFee;
buyLiquidityFee = _buyLiquidityFee;
buyDevFee = _buyDevFee;
buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;
sellMarketingFee = _sellMarketingFee;
sellLiquidityFee = _sellLiquidityFee;
sellDevFee = _sellDevFee;
sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;
marketingWallet = address(0xddACF416635f86b26d1887e3DaB96C638Ef2f178); // set as marketing wallet
devWallet = address(0xddACF416635f86b26d1887e3DaB96C638Ef2f178); // set as dev wallet
// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(0xdead), true);
/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(msg.sender, totalSupply);
}
receive() external payable {}
// once enabled, can never be turned off
function enableTrading() external onlyOwner {
tradingActive = true;
swapEnabled = true;
lastLpBurnTime = block.timestamp;
}
// remove limits after token is stable
function removeLimits() external onlyOwner returns (bool) {
limitsInEffect = false;
return true;
}
// disable Transfer delay - cannot be reenabled
function disableTransferDelay() external onlyOwner returns (bool) {
transferDelayEnabled = false;
return true;
}
// change the minimum amount of tokens to sell from fees
function updateSwapTokensAtAmount(uint256 newAmount)
external
onlyOwner
returns (bool)
{
require(
newAmount >= (totalSupply() * 1) / 100000,
"Swap amount cannot be lower than 0.001% total supply."
);
require(
newAmount <= (totalSupply() * 5) / 1000,
"Swap amount cannot be higher than 0.5% total supply."
);
swapTokensAtAmount = newAmount;
return true;
}
function updateMaxTxnAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 1) / 1000) / 1e18,
"Cannot set maxTransactionAmount lower than 0.1%"
);
maxTransactionAmount = newNum * (10**18);
}
function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 5) / 1000) / 1e18,
"Cannot set maxWallet lower than 0.5%"
);
maxWallet = newNum * (10**18);
}
function excludeFromMaxTransaction(address updAds, bool isEx)
public
onlyOwner
{
_isExcludedMaxTransactionAmount[updAds] = isEx;
}
// only use to disable contract sales if absolutely necessary (emergency use only)
function updateSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}
function updateBuyFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
buyMarketingFee = _marketingFee;
buyLiquidityFee = _liquidityFee;
buyDevFee = _devFee;
buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;
require(buyTotalFees <= 11, "Must keep fees at 11% or less");
}
function updateSellFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
sellMarketingFee = _marketingFee;
sellLiquidityFee = _liquidityFee;
sellDevFee = _devFee;
sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;
require(sellTotalFees <= 11, "Must keep fees at 11% or less");
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function setAutomatedMarketMakerPair(address pair, bool value)
public
onlyOwner
{
require(
pair != uniswapV2Pair,
"The pair cannot be removed from automatedMarketMakerPairs"
);
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function updateMarketingWallet(address newMarketingWallet)
external
onlyOwner
{
emit marketingWalletUpdated(newMarketingWallet, marketingWallet);
marketingWallet = newMarketingWallet;
}
function updateDevWallet(address newWallet) external onlyOwner {
emit devWalletUpdated(newWallet, devWallet);
devWallet = newWallet;
}
function isExcludedFromFees(address account) public view returns (bool) {
return _isExcludedFromFees[account];
}
event BoughtEarly(address indexed sniper);
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
if (limitsInEffect) {
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping
) {
if (!tradingActive) {
require(
_isExcludedFromFees[from] || _isExcludedFromFees[to],
"Trading is not active."
);
}
// at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
if (transferDelayEnabled) {
if (
to != owner() &&
to != address(uniswapV2Router) &&
to != address(uniswapV2Pair)
) {
require(
_holderLastTransferTimestamp[tx.origin] <
block.number,
"_transfer:: Transfer Delay enabled. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
//when buy
if (
automatedMarketMakerPairs[from] &&
!_isExcludedMaxTransactionAmount[to]
) {
require(
amount <= maxTransactionAmount,
"Buy transfer amount exceeds the maxTransactionAmount."
);
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
//when sell
else if (
automatedMarketMakerPairs[to] &&
!_isExcludedMaxTransactionAmount[from]
) {
require(
amount <= maxTransactionAmount,
"Sell transfer amount exceeds the maxTransactionAmount."
);
} else if (!_isExcludedMaxTransactionAmount[to]) {
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if (
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
if (
!swapping &&
automatedMarketMakerPairs[to] &&
lpBurnEnabled &&
block.timestamp >= lastLpBurnTime + lpBurnFrequency &&
!_isExcludedFromFees[from]
) {
autoBurnLiquidityPairTokens();
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if (takeFee) {
// on sell
if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
fees = amount.mul(sellTotalFees).div(100);
tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
tokensForDev += (fees * sellDevFee) / sellTotalFees;
tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
}
// on buy
else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
fees = amount.mul(buyTotalFees).div(100);
tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;
tokensForDev += (fees * buyDevFee) / buyTotalFees;
tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
}
if (fees > 0) {
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
deadAddress,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity +
tokensForMarketing +
tokensForDev;
bool success;
if (contractBalance == 0 || totalTokensToSwap == 0) {
return;
}
if (contractBalance > swapTokensAtAmount * 20) {
contractBalance = swapTokensAtAmount * 20;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /
totalTokensToSwap /
2;
uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance.sub(initialETHBalance);
uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(
totalTokensToSwap
);
uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);
uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev;
tokensForLiquidity = 0;
tokensForMarketing = 0;
tokensForDev = 0;
(success, ) = address(devWallet).call{value: ethForDev}("");
if (liquidityTokens > 0 && ethForLiquidity > 0) {
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(
amountToSwapForETH,
ethForLiquidity,
tokensForLiquidity
);
}
(success, ) = address(marketingWallet).call{
value: address(this).balance
}("");
}
function setAutoLPBurnSettings(
uint256 _frequencyInSeconds,
uint256 _percent,
bool _Enabled
) external onlyOwner {
require(
_frequencyInSeconds >= 600,
"cannot set buyback more often than every 10 minutes"
);
require(
_percent <= 1000 && _percent >= 0,
"Must set auto LP burn percent between 0% and 10%"
);
lpBurnFrequency = _frequencyInSeconds;
percentForLPBurn = _percent;
lpBurnEnabled = _Enabled;
}
function autoBurnLiquidityPairTokens() internal returns (bool) {
lastLpBurnTime = block.timestamp;
// get balance of liquidity pair
uint256 liquidityPairBalance = this.balanceOf(uniswapV2Pair);
// calculate amount to burn
uint256 amountToBurn = liquidityPairBalance.mul(percentForLPBurn).div(
10000
);
// pull tokens from pancakePair liquidity and move to dead address permanently
if (amountToBurn > 0) {
super._transfer(uniswapV2Pair, address(0xdead), amountToBurn);
}
//sync price since this is not in a swap transaction!
IUniswapV2Pair pair = IUniswapV2Pair(uniswapV2Pair);
pair.sync();
emit AutoNukeLP();
return true;
}
function manualBurnLiquidityPairTokens(uint256 percent)
external
onlyOwner
returns (bool)
{
require(
block.timestamp > lastManualLpBurnTime + manualBurnFrequency,
"Must wait for cooldown to finish"
);
require(percent <= 1000, "May not nuke more than 10% of tokens in LP");
lastManualLpBurnTime = block.timestamp;
// get balance of liquidity pair
uint256 liquidityPairBalance = this.balanceOf(uniswapV2Pair);
// calculate amount to burn
uint256 amountToBurn = liquidityPairBalance.mul(percent).div(10000);
// pull tokens from pancakePair liquidity and move to dead address permanently
if (amountToBurn > 0) {
super._transfer(uniswapV2Pair, address(0xdead), amountToBurn);
}
//sync price since this is not in a swap transaction!
IUniswapV2Pair pair = IUniswapV2Pair(uniswapV2Pair);
pair.sync();
emit ManualNukeLP();
return true;
}
} | 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| v0.8.10+commit.fc410830 | true | 200 | Default | MIT | false | ipfs://ad00f37dbb2bb61d5f21ae2a6377f6c43776814cbcf33e6b23587b5eeacd74a8 | |||
OniForce | 0x2ed4db5636835acfc583af96c66cde1d8c2c1a25 | Solidity | // File: contracts/token/OniForce.sol
// SPDX-License-Identifier: MIT
// eyJuYW1lIjoiME4xIC0gTWV0YWRhdGEiLCJkZXNjcmlwdGlvbiI6IlRoaXMgc2hvdWxkIE5PVCBiZSByZXZlYWxlZCBiZWZvcmUgYWxsIGFyZSBzb2xkLiBJbWFnZXMgY29udGFpbmVkIGJlbG93IiwiaW1hZ2VzIjoiMHg1MTZENTU0ODYxMzQ0QTc3NEI1MDY3NjY0ODcxNDM1ODMxNTQ3ODMyNTc2OTRBNTg2NDYzNEM2MzY1NTM3NDZGNTEzNjY1Nzg1NTU4Mzg1NDRBNkE0NjYxNjE1MSJ9
pragma solidity ^0.8.0;
import '@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '../interfaces/IOniForce.sol';
import '../interfaces/IOniForceMetadata.sol';
contract OniForce is ERC721Enumerable, Ownable, IOniForce, IOniForceMetadata {
using Strings for uint256;
uint256 public constant ONI_GIFT = 77;
uint256 public constant ONI_PUBLIC = 7_700;
uint256 public constant ONI_MAX = ONI_GIFT + ONI_PUBLIC;
uint256 public constant PURCHASE_LIMIT = 7;
uint256 public constant PRICE = 0.07777 ether;
bool public isActive = false;
bool public isAllowListActive = false;
string public proof;
uint256 public allowListMaxMint = 2;
/// @dev We will use these to be able to calculate remaining correctly.
uint256 public totalGiftSupply;
uint256 public totalPublicSupply;
mapping(address => bool) private _allowList;
mapping(address => uint256) private _allowListClaimed;
string private _contractURI = '';
string private _tokenBaseURI = '';
string private _tokenRevealedBaseURI = '';
constructor(string memory name, string memory symbol) ERC721(name, symbol) {}
function addToAllowList(address[] calldata addresses) external override onlyOwner {
for (uint256 i = 0; i < addresses.length; i++) {
require(addresses[i] != address(0), "Can't add the null address");
_allowList[addresses[i]] = true;
/**
* @dev We don't want to reset _allowListClaimed count
* if we try to add someone more than once.
*/
_allowListClaimed[addresses[i]] > 0 ? _allowListClaimed[addresses[i]] : 0;
}
}
function onAllowList(address addr) external view override returns (bool) {
return _allowList[addr];
}
function removeFromAllowList(address[] calldata addresses) external override onlyOwner {
for (uint256 i = 0; i < addresses.length; i++) {
require(addresses[i] != address(0), "Can't add the null address");
/// @dev We don't want to reset possible _allowListClaimed numbers.
_allowList[addresses[i]] = false;
}
}
/**
* @dev We want to be able to distinguish tokens bought during isAllowListActive
* and tokens bought outside of isAllowListActive
*/
function allowListClaimedBy(address owner) external view override returns (uint256){
require(owner != address(0), 'Zero address not on Allow List');
return _allowListClaimed[owner];
}
function purchase(uint256 numberOfTokens) external override payable {
require(isActive, 'Contract is not active');
require(!isAllowListActive, 'Only allowing from Allow List');
require(totalSupply() < ONI_MAX, 'All tokens have been minted');
require(numberOfTokens <= PURCHASE_LIMIT, 'Would exceed PURCHASE_LIMIT');
/**
* @dev The last person to purchase might pay too much.
* This way however they can't get sniped.
* If this happens, we'll refund the Eth for the unavailable tokens.
*/
require(totalPublicSupply < ONI_PUBLIC, 'Purchase would exceed ONI_PUBLIC');
require(PRICE * numberOfTokens <= msg.value, 'ETH amount is not sufficient');
for (uint256 i = 0; i < numberOfTokens; i++) {
/**
* @dev Since they can get here while exceeding the ONI_MAX,
* we have to make sure to not mint any additional tokens.
*/
if (totalPublicSupply < ONI_PUBLIC) {
/**
* @dev Public token numbering starts after ONI_GIFT.
* And we don't want our tokens to start at 0 but at 1.
*/
uint256 tokenId = ONI_GIFT + totalPublicSupply + 1;
totalPublicSupply += 1;
_safeMint(msg.sender, tokenId);
}
}
}
function purchaseAllowList(uint256 numberOfTokens) external override payable {
require(isActive, 'Contract is not active');
require(isAllowListActive, 'Allow List is not active');
require(_allowList[msg.sender], 'You are not on the Allow List');
require(totalSupply() < ONI_MAX, 'All tokens have been minted');
require(numberOfTokens <= allowListMaxMint, 'Cannot purchase this many tokens');
require(totalPublicSupply + numberOfTokens <= ONI_PUBLIC, 'Purchase would exceed ONI_PUBLIC');
require(_allowListClaimed[msg.sender] + numberOfTokens <= allowListMaxMint, 'Purchase exceeds max allowed');
require(PRICE * numberOfTokens <= msg.value, 'ETH amount is not sufficient');
for (uint256 i = 0; i < numberOfTokens; i++) {
/**
* @dev Public token numbering starts after ONI_GIFT.
* We don't want our tokens to start at 0 but at 1.
*/
uint256 tokenId = ONI_GIFT + totalPublicSupply + 1;
totalPublicSupply += 1;
_allowListClaimed[msg.sender] += 1;
_safeMint(msg.sender, tokenId);
}
}
function gift(address[] calldata to) external override onlyOwner {
require(totalSupply() < ONI_MAX, 'All tokens have been minted');
require(totalGiftSupply + to.length <= ONI_GIFT, 'Not enough tokens left to gift');
for(uint256 i = 0; i < to.length; i++) {
/// @dev We don't want our tokens to start at 0 but at 1.
uint256 tokenId = totalGiftSupply + 1;
totalGiftSupply += 1;
_safeMint(to[i], tokenId);
}
}
function setIsActive(bool _isActive) external override onlyOwner {
isActive = _isActive;
}
function setIsAllowListActive(bool _isAllowListActive) external override onlyOwner {
isAllowListActive = _isAllowListActive;
}
function setAllowListMaxMint(uint256 maxMint) external override onlyOwner {
allowListMaxMint = maxMint;
}
function setProof(string calldata proofString) external override onlyOwner {
proof = proofString;
}
function withdraw() external override onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
function setContractURI(string calldata URI) external override onlyOwner {
_contractURI = URI;
}
function setBaseURI(string calldata URI) external override onlyOwner {
_tokenBaseURI = URI;
}
function setRevealedBaseURI(string calldata revealedBaseURI) external override onlyOwner {
_tokenRevealedBaseURI = revealedBaseURI;
}
function contractURI() public view override returns (string memory) {
return _contractURI;
}
function tokenURI(uint256 tokenId) public view override(ERC721) returns (string memory) {
require(_exists(tokenId), 'Token does not exist');
/// @dev Convert string to bytes so we can check if it's empty or not.
string memory revealedBaseURI = _tokenRevealedBaseURI;
return bytes(revealedBaseURI).length > 0 ?
string(abi.encodePacked(revealedBaseURI, tokenId.toString())) :
_tokenBaseURI;
}
}
// File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../ERC721.sol";
import "./IERC721Enumerable.sol";
/**
* @dev This implements an optional extension of {ERC721} defined in the EIP that adds
* enumerability of all the token ids in the contract as well as all token ids owned by each
* account.
*/
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
// Mapping from owner to list of owned token IDs
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
// Mapping from token ID to index of the owner tokens list
mapping(uint256 => uint256) private _ownedTokensIndex;
// Array with all token ids, used for enumeration
uint256[] private _allTokens;
// Mapping from token id to position in the allTokens array
mapping(uint256 => uint256) private _allTokensIndex;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
return _ownedTokens[owner][index];
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _allTokens.length;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
return _allTokens[index];
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override {
super._beforeTokenTransfer(from, to, tokenId);
if (from == address(0)) {
_addTokenToAllTokensEnumeration(tokenId);
} else if (from != to) {
_removeTokenFromOwnerEnumeration(from, tokenId);
}
if (to == address(0)) {
_removeTokenFromAllTokensEnumeration(tokenId);
} else if (to != from) {
_addTokenToOwnerEnumeration(to, tokenId);
}
}
/**
* @dev Private function to add a token to this extension's ownership-tracking data structures.
* @param to address representing the new owner of the given token ID
* @param tokenId uint256 ID of the token to be added to the tokens list of the given address
*/
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
uint256 length = ERC721.balanceOf(to);
_ownedTokens[to][length] = tokenId;
_ownedTokensIndex[tokenId] = length;
}
/**
* @dev Private function to add a token to this extension's token tracking data structures.
* @param tokenId uint256 ID of the token to be added to the tokens list
*/
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
_allTokensIndex[tokenId] = _allTokens.length;
_allTokens.push(tokenId);
}
/**
* @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
* while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
* gas optimizations e.g. when performing a transfer operation (avoiding double writes).
* This has O(1) time complexity, but alters the order of the _ownedTokens array.
* @param from address representing the previous owner of the given token ID
* @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
*/
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
// To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
// then delete the last slot (swap and pop).
uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
uint256 tokenIndex = _ownedTokensIndex[tokenId];
// When the token to delete is the last token, the swap operation is unnecessary
if (tokenIndex != lastTokenIndex) {
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
}
// This also deletes the contents at the last position of the array
delete _ownedTokensIndex[tokenId];
delete _ownedTokens[from][lastTokenIndex];
}
/**
* @dev Private function to remove a token from this extension's token tracking data structures.
* This has O(1) time complexity, but alters the order of the _allTokens array.
* @param tokenId uint256 ID of the token to be removed from the tokens list
*/
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
// To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
// then delete the last slot (swap and pop).
uint256 lastTokenIndex = _allTokens.length - 1;
uint256 tokenIndex = _allTokensIndex[tokenId];
// When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
// rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
// an 'if' statement (like in _removeTokenFromOwnerEnumeration)
uint256 lastTokenId = _allTokens[lastTokenIndex];
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
// This also deletes the contents at the last position of the array
delete _allTokensIndex[tokenId];
_allTokens.pop();
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_setOwner(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: contracts/interfaces/IOniForce.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IOniForce {
function addToAllowList(address[] calldata addresses) external;
function onAllowList(address addr) external returns (bool);
function removeFromAllowList(address[] calldata addresses) external;
function allowListClaimedBy(address owner) external returns (uint256);
function purchase(uint256 numberOfTokens) external payable;
function purchaseAllowList(uint256 numberOfTokens) external payable;
function gift(address[] calldata to) external;
function setIsActive(bool isActive) external;
function setIsAllowListActive(bool isAllowListActive) external;
function setAllowListMaxMint(uint256 maxMint) external;
function setProof(string memory proofString) external;
function withdraw() external;
}
// File: contracts/interfaces/IOniForceMetadata.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IOniForceMetadata {
function setContractURI(string calldata URI) external;
function setBaseURI(string calldata URI) external;
function setRevealedBaseURI(string calldata revealedBaseURI) external;
function contractURI() external view returns(string memory);
}
// File: @openzeppelin/contracts/token/ERC721/ERC721.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
require(operator != _msgSender(), "ERC721: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Enumerable is IERC721 {
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);
/**
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
* Use along with {totalSupply} to enumerate all tokens.
*/
function tokenByIndex(uint256 index) external view returns (uint256);
}
// File: @openzeppelin/contracts/token/ERC721/IERC721.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) private pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
| 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"}],"name":"purchaseAllowList","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"}],"name":"removeFromAllowList","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxMint","type":"uint256"}],"name":"setAllowListMaxMint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"URI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"URI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isActive","type":"bool"}],"name":"setIsActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isAllowListActive","type":"bool"}],"name":"setIsAllowListActive","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"proofString","type":"string"}],"name":"setProof","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"revealedBaseURI","type":"string"}],"name":"setRevealedBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalGiftSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalPublicSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.5+commit.a4f2e591 | true | 200 | 000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000009304e3120466f72636500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003304e310000000000000000000000000000000000000000000000000000000000 | Default | false | ||||
Forwarder | 0x4577fc9e70436f11158f22249ff6faad4d39b53c | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
ERC1155SeaDropCloneable | 0x8acb3ad1b6ceac1cc9ad0cee6db216cbdff04f92 | Solidity | // File: src/clones/ERC1155SeaDropCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import {
ERC1155SeaDropContractOffererCloneable
} from "./ERC1155SeaDropContractOffererCloneable.sol";
/**
* @title ERC1155SeaDropCloneable
* @author James Wenzel (emo.eth)
* @author Ryan Ghods (ralxz.eth)
* @author Stephan Min (stephanm.eth)
* @author Michael Cohen (notmichael.eth)
* @notice A cloneable ERC1155 token contract that can mint as a
* Seaport contract offerer.
*/
contract ERC1155SeaDropCloneable is ERC1155SeaDropContractOffererCloneable {
/**
* @notice Initialize the token contract.
*
* @param allowedConfigurer The address of the contract allowed to
* implementation code. Also contains SeaDrop
* implementation code.
* @param allowedSeaport The address of the Seaport contract allowed to
* interact.
* @param name_ The name of the token.
* @param symbol_ The symbol of the token.
*/
function initialize(
address allowedConfigurer,
address allowedSeaport,
string memory name_,
string memory symbol_,
address initialOwner
) public initializer {
// Initialize ownership.
_initializeOwner(initialOwner);
// Initialize ERC1155SeaDropContractOffererCloneable.
__ERC1155SeaDropContractOffererCloneable_init(
allowedConfigurer,
allowedSeaport,
name_,
symbol_
);
}
/**
* @dev Auto-approve the conduit after mint or transfer.
*
* @custom:param from The address to transfer from.
* @param to The address to transfer to.
* @custom:param ids The token ids to transfer.
* @custom:param amounts The quantities to transfer.
* @custom:param data The data to pass if receiver is a contract.
*/
function _afterTokenTransfer(
address /* from */,
address to,
uint256[] memory /* ids */,
uint256[] memory /* amounts */,
bytes memory /* data */
) internal virtual override {
// Auto-approve the conduit.
if (to != address(0) && !isApprovedForAll(to, _CONDUIT)) {
_setApprovalForAll(to, _CONDUIT, true);
}
}
/**
* @dev Override this function to return true if `_afterTokenTransfer` is
* used. The is to help the compiler avoid producing dead bytecode.
*/
function _useAfterTokenTransfer()
internal
view
virtual
override
returns (bool)
{
return true;
}
/**
* @notice Burns a token, restricted to the owner or approved operator,
* and must have sufficient balance.
*
* @param from The address to burn from.
* @param id The token id to burn.
* @param amount The amount to burn.
*/
function burn(address from, uint256 id, uint256 amount) external {
// Burn the token.
_burn(msg.sender, from, id, amount);
}
/**
* @notice Burns a batch of tokens, restricted to the owner or
* approved operator, and must have sufficient balance.
*
* @param from The address to burn from.
* @param ids The token ids to burn.
* @param amounts The amounts to burn per token id.
*/
function batchBurn(
address from,
uint256[] calldata ids,
uint256[] calldata amounts
) external {
// Burn the tokens.
_batchBurn(msg.sender, from, ids, amounts);
}
}
// File: src/clones/ERC1155SeaDropContractOffererCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { IERC1155SeaDrop } from "../interfaces/IERC1155SeaDrop.sol";
import { ISeaDropToken } from "../interfaces/ISeaDropToken.sol";
import {
ERC1155ContractMetadataCloneable
} from "./ERC1155ContractMetadataCloneable.sol";
import {
ERC1155SeaDropContractOffererStorage
} from "../lib/ERC1155SeaDropContractOffererStorage.sol";
import {
ERC1155SeaDropErrorsAndEvents
} from "../lib/ERC1155SeaDropErrorsAndEvents.sol";
import { PublicDrop } from "../lib//ERC1155SeaDropStructs.sol";
import { AllowListData } from "../lib/SeaDropStructs.sol";
import {
ERC1155ConduitPreapproved
} from "../lib/ERC1155ConduitPreapproved.sol";
import { ERC1155 } from "solady/src/tokens/ERC1155.sol";
import { SpentItem } from "seaport-types/src/lib/ConsiderationStructs.sol";
import {
ContractOffererInterface
} from "seaport-types/src/interfaces/ContractOffererInterface.sol";
import {
IERC165
} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
/**
* @title ERC1155SeaDropContractOffererCloneable
* @author James Wenzel (emo.eth)
* @author Ryan Ghods (ralxz.eth)
* @author Stephan Min (stephanm.eth)
* @author Michael Cohen (notmichael.eth)
* @notice A cloneable ERC1155 token contract that can mint as a
* Seaport contract offerer.
*/
contract ERC1155SeaDropContractOffererCloneable is
ERC1155ContractMetadataCloneable,
ERC1155SeaDropErrorsAndEvents
{
using ERC1155SeaDropContractOffererStorage for ERC1155SeaDropContractOffererStorage.Layout;
/**
* @notice Initialize the token contract.
*
* @param allowedConfigurer The address of the contract allowed to
* configure parameters. Also contains SeaDrop
* implementation code.
* @param allowedSeaport The address of the Seaport contract allowed to
* interact.
* @param name_ The name of the token.
* @param symbol_ The symbol of the token.
*/
function __ERC1155SeaDropContractOffererCloneable_init(
address allowedConfigurer,
address allowedSeaport,
string memory name_,
string memory symbol_
) internal onlyInitializing {
// Set the allowed Seaport to interact with this contract.
if (allowedSeaport == address(0)) {
revert AllowedSeaportCannotBeZeroAddress();
}
ERC1155SeaDropContractOffererStorage.layout()._allowedSeaport[
allowedSeaport
] = true;
// Set the allowed Seaport enumeration.
address[] memory enumeratedAllowedSeaport = new address[](1);
enumeratedAllowedSeaport[0] = allowedSeaport;
ERC1155SeaDropContractOffererStorage
.layout()
._enumeratedAllowedSeaport = enumeratedAllowedSeaport;
// Emit an event noting the contract deployment.
emit SeaDropTokenDeployed(SEADROP_TOKEN_TYPE.ERC1155_CLONE);
// Initialize ERC1155ContractMetadataCloneable.
__ERC1155ContractMetadataCloneable_init(
allowedConfigurer,
name_,
symbol_
);
}
/**
* @notice The fallback function is used as a dispatcher for SeaDrop
* methods.
*/
fallback(bytes calldata) external returns (bytes memory output) {
// Get the function selector.
bytes4 selector = msg.sig;
// Get the rest of the msg data after the selector.
bytes calldata data = msg.data[4:];
// Determine if we should forward the call to the implementation
// contract with SeaDrop logic.
bool callSeaDropImplementation = selector ==
ISeaDropToken.updateAllowedSeaport.selector ||
selector == ISeaDropToken.updateDropURI.selector ||
selector == ISeaDropToken.updateAllowList.selector ||
selector == ISeaDropToken.updateCreatorPayouts.selector ||
selector == ISeaDropToken.updatePayer.selector ||
selector == ISeaDropToken.updateAllowedFeeRecipient.selector ||
selector == ISeaDropToken.updateSigner.selector ||
selector == IERC1155SeaDrop.updatePublicDrop.selector ||
selector == ContractOffererInterface.previewOrder.selector ||
selector == ContractOffererInterface.generateOrder.selector ||
selector == ContractOffererInterface.getSeaportMetadata.selector ||
selector == IERC1155SeaDrop.getPublicDrop.selector ||
selector == IERC1155SeaDrop.getPublicDropIndexes.selector ||
selector == ISeaDropToken.getAllowedSeaport.selector ||
selector == ISeaDropToken.getCreatorPayouts.selector ||
selector == ISeaDropToken.getAllowListMerkleRoot.selector ||
selector == ISeaDropToken.getAllowedFeeRecipients.selector ||
selector == ISeaDropToken.getSigners.selector ||
selector == ISeaDropToken.getDigestIsUsed.selector ||
selector == ISeaDropToken.getPayers.selector;
// Determine if we should require only the owner or configurer calling.
bool requireOnlyOwnerOrConfigurer = selector ==
ISeaDropToken.updateAllowedSeaport.selector ||
selector == ISeaDropToken.updateDropURI.selector ||
selector == ISeaDropToken.updateAllowList.selector ||
selector == ISeaDropToken.updateCreatorPayouts.selector ||
selector == ISeaDropToken.updatePayer.selector ||
selector == ISeaDropToken.updateAllowedFeeRecipient.selector ||
selector == IERC1155SeaDrop.updatePublicDrop.selector;
if (callSeaDropImplementation) {
// For update calls, ensure the sender is only the owner
// or configurer contract.
if (requireOnlyOwnerOrConfigurer) {
_onlyOwnerOrConfigurer();
} else if (selector == ISeaDropToken.updateSigner.selector) {
// For updateSigner, a signer can disallow themselves.
// Get the signer parameter.
address signer = address(bytes20(data[12:32]));
// If the signer is not allowed, ensure sender is only owner
// or configurer.
if (
msg.sender != signer ||
(msg.sender == signer &&
!ERC1155SeaDropContractOffererStorage
.layout()
._allowedSigners[signer])
) {
_onlyOwnerOrConfigurer();
}
}
// Forward the call to the implementation contract.
(bool success, bytes memory returnedData) = _CONFIGURER
.delegatecall(msg.data);
// Require that the call was successful.
if (!success) {
// Bubble up the revert reason.
assembly {
revert(add(32, returnedData), mload(returnedData))
}
}
// If the call was to generateOrder, mint the tokens.
if (selector == ContractOffererInterface.generateOrder.selector) {
_mintOrder(data);
}
// Return the data from the delegate call.
return returnedData;
} else if (selector == IERC1155SeaDrop.getMintStats.selector) {
// Get the minter and token id.
(address minter, uint256 tokenId) = abi.decode(
data,
(address, uint256)
);
// Get the mint stats.
(
uint256 minterNumMinted,
uint256 minterNumMintedForTokenId,
uint256 totalMintedForTokenId,
uint256 maxSupply
) = _getMintStats(minter, tokenId);
// Encode the return data.
return
abi.encode(
minterNumMinted,
minterNumMintedForTokenId,
totalMintedForTokenId,
maxSupply
);
} else if (selector == ContractOffererInterface.ratifyOrder.selector) {
// This function is a no-op, nothing additional needs to happen here.
// Utilize assembly to efficiently return the ratifyOrder magic value.
assembly {
mstore(0, 0xf4dd92ce)
return(0x1c, 32)
}
} else if (selector == ISeaDropToken.configurer.selector) {
// Return the configurer contract.
return abi.encode(_CONFIGURER);
} else if (selector == IERC1155SeaDrop.multiConfigureMint.selector) {
// Ensure only the owner or configurer can call this function.
_onlyOwnerOrConfigurer();
// Mint the tokens.
_multiConfigureMint(data);
} else {
// Revert if the function selector is not supported.
revert UnsupportedFunctionSelector(selector);
}
}
/**
* @notice Returns a set of mint stats for the address.
* This assists in enforcing maxSupply, maxTotalMintableByWallet,
* and maxTokenSupplyForStage checks.
*
* @dev NOTE: Implementing contracts should always update these numbers
* before transferring any tokens with _safeMint() to mitigate
* consequences of malicious onERC1155Received() hooks.
*
* @param minter The minter address.
* @param tokenId The token id to return the stats for.
*/
function _getMintStats(
address minter,
uint256 tokenId
)
internal
view
returns (
uint256 minterNumMinted,
uint256 minterNumMintedForTokenId,
uint256 totalMintedForTokenId,
uint256 maxSupply
)
{
// Put the token supply on the stack.
TokenSupply storage tokenSupply = _tokenSupply[tokenId];
// Assign the return values.
totalMintedForTokenId = tokenSupply.totalMinted;
maxSupply = tokenSupply.maxSupply;
minterNumMinted = _totalMintedByUser[minter];
minterNumMintedForTokenId = _totalMintedByUserPerToken[minter][tokenId];
}
/**
* @dev Handle ERC-1155 safeTransferFrom. If "from" is this contract,
* the sender can only be Seaport or the conduit.
*
* @param from The address to transfer from.
* @param to The address to transfer to.
* @param id The token id to transfer.
* @param amount The amount of tokens to transfer.
* @param data The data to pass to the onERC1155Received hook.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) public virtual override {
if (from == address(this)) {
// Only Seaport or the conduit can use this function
// when "from" is this contract.
if (
msg.sender != _CONDUIT &&
!ERC1155SeaDropContractOffererStorage.layout()._allowedSeaport[
msg.sender
]
) {
revert InvalidCallerOnlyAllowedSeaport(msg.sender);
}
return;
}
ERC1155._safeTransfer(_by(), from, to, id, amount, data);
}
/**
* @notice Returns whether the interface is supported.
*
* @param interfaceId The interface id to check against.
*/
function supportsInterface(
bytes4 interfaceId
)
public
view
virtual
override(ERC1155ContractMetadataCloneable)
returns (bool)
{
return
interfaceId == type(IERC1155SeaDrop).interfaceId ||
interfaceId == type(ContractOffererInterface).interfaceId ||
interfaceId == 0x2e778efc || // SIP-5 (getSeaportMetadata)
// ERC1155ContractMetadata returns supportsInterface true for
// IERC1155ContractMetadata, ERC-4906, ERC-2981
// ERC1155A returns supportsInterface true for
// ERC165, ERC1155, ERC1155MetadataURI
ERC1155ContractMetadataCloneable.supportsInterface(interfaceId);
}
/**
* @dev Internal function to mint tokens during a generateOrder call
* from Seaport.
*
* @param data The original transaction calldata, without the selector.
*/
function _mintOrder(bytes calldata data) internal {
// Decode fulfiller, minimumReceived, and context from calldata.
(
address fulfiller,
SpentItem[] memory minimumReceived,
,
bytes memory context
) = abi.decode(data, (address, SpentItem[], SpentItem[], bytes));
// Assign the minter from context[22:42]. We validate context has the
// correct minimum length in the implementation's `_decodeOrder`.
address minter;
assembly {
minter := shr(96, mload(add(add(context, 0x20), 22)))
}
// If the minter is the zero address, set it to the fulfiller.
if (minter == address(0)) {
minter = fulfiller;
}
// Set the token ids and quantities.
uint256 minimumReceivedLength = minimumReceived.length;
uint256[] memory tokenIds = new uint256[](minimumReceivedLength);
uint256[] memory quantities = new uint256[](minimumReceivedLength);
for (uint256 i = 0; i < minimumReceivedLength; ) {
tokenIds[i] = minimumReceived[i].identifier;
quantities[i] = minimumReceived[i].amount;
unchecked {
++i;
}
}
// Mint the tokens.
_batchMint(minter, tokenIds, quantities, "");
}
/**
* @dev Internal function to mint tokens during a multiConfigureMint call
* from the configurer contract.
*
* @param data The original transaction calldata, without the selector.
*/
function _multiConfigureMint(bytes calldata data) internal {
// Decode the calldata.
(
address recipient,
uint256[] memory tokenIds,
uint256[] memory amounts
) = abi.decode(data, (address, uint256[], uint256[]));
_batchMint(recipient, tokenIds, amounts, "");
}
}
// File: src/interfaces/IERC1155SeaDrop.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { ISeaDropToken } from "./ISeaDropToken.sol";
import { PublicDrop } from "../lib/ERC1155SeaDropStructs.sol";
/**
* @dev A helper interface to get and set parameters for ERC1155SeaDrop.
* The token does not expose these methods as part of its external
* interface to optimize contract size, but does implement them.
*/
interface IERC1155SeaDrop is ISeaDropToken {
/**
* @notice Update the SeaDrop public drop parameters at a given index.
*
* @param publicDrop The new public drop parameters.
* @param index The public drop index.
*/
function updatePublicDrop(
PublicDrop calldata publicDrop,
uint256 index
) external;
/**
* @notice Returns the public drop stage parameters at a given index.
*
* @param index The index of the public drop stage.
*/
function getPublicDrop(
uint256 index
) external view returns (PublicDrop memory);
/**
* @notice Returns the public drop indexes.
*/
function getPublicDropIndexes() external view returns (uint256[] memory);
/**
* @notice Returns a set of mint stats for the address.
* This assists SeaDrop in enforcing maxSupply,
* maxTotalMintableByWallet, maxTotalMintableByWalletPerToken,
* and maxTokenSupplyForStage checks.
*
* @dev NOTE: Implementing contracts should always update these numbers
* before transferring any tokens with _safeMint() to mitigate
* consequences of malicious onERC1155Received() hooks.
*
* @param minter The minter address.
* @param tokenId The token id to return stats for.
*/
function getMintStats(
address minter,
uint256 tokenId
)
external
view
returns (
uint256 minterNumMinted,
uint256 minterNumMintedForTokenId,
uint256 totalMintedForTokenId,
uint256 maxSupply
);
/**
* @notice This function is only allowed to be called by the configurer
* contract as a way to batch mints and configuration in one tx.
*
* @param recipient The address to receive the mints.
* @param tokenIds The tokenIds to mint.
* @param amounts The amounts to mint.
*/
function multiConfigureMint(
address recipient,
uint256[] calldata tokenIds,
uint256[] calldata amounts
) external;
}
// File: src/interfaces/ISeaDropToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import {
ISeaDropTokenContractMetadata
} from "./ISeaDropTokenContractMetadata.sol";
import { AllowListData, CreatorPayout } from "../lib/SeaDropStructs.sol";
/**
* @dev A helper base interface for IERC721SeaDrop and IERC1155SeaDrop.
* The token does not expose these methods as part of its external
* interface to optimize contract size, but does implement them.
*/
interface ISeaDropToken is ISeaDropTokenContractMetadata {
/**
* @notice Update the SeaDrop allowed Seaport contracts privileged to mint.
* Only the owner can use this function.
*
* @param allowedSeaport The allowed Seaport addresses.
*/
function updateAllowedSeaport(address[] calldata allowedSeaport) external;
/**
* @notice Update the SeaDrop allowed fee recipient.
* Only the owner can use this function.
*
* @param feeRecipient The new fee recipient.
* @param allowed Whether the fee recipient is allowed.
*/
function updateAllowedFeeRecipient(
address feeRecipient,
bool allowed
) external;
/**
* @notice Update the SeaDrop creator payout addresses.
* The total basis points must add up to exactly 10_000.
* Only the owner can use this function.
*
* @param creatorPayouts The new creator payouts.
*/
function updateCreatorPayouts(
CreatorPayout[] calldata creatorPayouts
) external;
/**
* @notice Update the SeaDrop drop URI.
* Only the owner can use this function.
*
* @param dropURI The new drop URI.
*/
function updateDropURI(string calldata dropURI) external;
/**
* @notice Update the SeaDrop allow list data.
* Only the owner can use this function.
*
* @param allowListData The new allow list data.
*/
function updateAllowList(AllowListData calldata allowListData) external;
/**
* @notice Update the SeaDrop allowed payers.
* Only the owner can use this function.
*
* @param payer The payer to update.
* @param allowed Whether the payer is allowed.
*/
function updatePayer(address payer, bool allowed) external;
/**
* @notice Update the SeaDrop allowed signer.
* Only the owner can use this function.
* An allowed signer can also disallow themselves.
*
* @param signer The signer to update.
* @param allowed Whether the signer is allowed.
*/
function updateSigner(address signer, bool allowed) external;
/**
* @notice Get the SeaDrop allowed Seaport contracts privileged to mint.
*/
function getAllowedSeaport() external view returns (address[] memory);
/**
* @notice Returns the SeaDrop creator payouts.
*/
function getCreatorPayouts() external view returns (CreatorPayout[] memory);
/**
* @notice Returns the SeaDrop allow list merkle root.
*/
function getAllowListMerkleRoot() external view returns (bytes32);
/**
* @notice Returns the SeaDrop allowed fee recipients.
*/
function getAllowedFeeRecipients() external view returns (address[] memory);
/**
* @notice Returns the SeaDrop allowed signers.
*/
function getSigners() external view returns (address[] memory);
/**
* @notice Returns if the signed digest has been used.
*
* @param digest The digest hash.
*/
function getDigestIsUsed(bytes32 digest) external view returns (bool);
/**
* @notice Returns the SeaDrop allowed payers.
*/
function getPayers() external view returns (address[] memory);
/**
* @notice Returns the configurer contract.
*/
function configurer() external view returns (address);
}
// File: src/clones/ERC1155ContractMetadataCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import {
IERC1155ContractMetadata
} from "../interfaces/IERC1155ContractMetadata.sol";
import {
ERC1155ConduitPreapproved
} from "../lib/ERC1155ConduitPreapproved.sol";
import { ERC1155 } from "solady/src/tokens/ERC1155.sol";
import { ERC2981 } from "solady/src/tokens/ERC2981.sol";
import { Ownable } from "solady/src/auth/Ownable.sol";
import {
Initializable
} from "@openzeppelin-upgradeable/contracts/proxy/utils/Initializable.sol";
/**
* @title ERC1155ContractMetadataCloneable
* @author James Wenzel (emo.eth)
* @author Ryan Ghods (ralxz.eth)
* @author Stephan Min (stephanm.eth)
* @author Michael Cohen (notmichael.eth)
* @notice A cloneable token contract that extends ERC-1155
* with additional metadata and ownership capabilities.
*/
contract ERC1155ContractMetadataCloneable is
ERC1155ConduitPreapproved,
ERC2981,
Ownable,
IERC1155ContractMetadata,
Initializable
{
/// @notice A struct containing the token supply info per token id.
mapping(uint256 => TokenSupply) _tokenSupply;
/// @notice The total number of tokens minted by address.
mapping(address => uint256) _totalMintedByUser;
/// @notice The total number of tokens minted per token id by address.
mapping(address => mapping(uint256 => uint256)) _totalMintedByUserPerToken;
/// @notice The name of the token.
string internal _name;
/// @notice The symbol of the token.
string internal _symbol;
/// @notice The base URI for token metadata.
string internal _baseURI;
/// @notice The contract URI for contract metadata.
string internal _contractURI;
/// @notice The provenance hash for guaranteeing metadata order
/// for random reveals.
bytes32 internal _provenanceHash;
/// @notice The allowed contract that can configure SeaDrop parameters.
address internal _CONFIGURER;
/**
* @dev Reverts if the sender is not the owner or the allowed
* configurer contract.
*
* This is used as a function instead of a modifier
* to save contract space when used multiple times.
*/
function _onlyOwnerOrConfigurer() internal view {
if (msg.sender != _CONFIGURER && msg.sender != owner()) {
revert Unauthorized();
}
}
/**
* @notice Deploy the token contract.
*
* @param allowedConfigurer The address of the contract allowed to
* configure parameters. Also contains SeaDrop
* implementation code.
* @param name_ The name of the token.
* @param symbol_ The symbol of the token.
*/
function __ERC1155ContractMetadataCloneable_init(
address allowedConfigurer,
string memory name_,
string memory symbol_
) internal onlyInitializing {
// Set the name of the token.
_name = name_;
// Set the symbol of the token.
_symbol = symbol_;
// Set the allowed configurer contract to interact with this contract.
_CONFIGURER = allowedConfigurer;
}
/**
* @notice Sets the base URI for the token metadata and emits an event.
*
* @param newBaseURI The new base URI to set.
*/
function setBaseURI(string calldata newBaseURI) external override {
// Ensure the sender is only the owner or configurer contract.
_onlyOwnerOrConfigurer();
// Set the new base URI.
_baseURI = newBaseURI;
// Emit an event with the update.
emit BatchMetadataUpdate(0, type(uint256).max);
}
/**
* @notice Sets the contract URI for contract metadata.
*
* @param newContractURI The new contract URI.
*/
function setContractURI(string calldata newContractURI) external override {
// Ensure the sender is only the owner or configurer contract.
_onlyOwnerOrConfigurer();
// Set the new contract URI.
_contractURI = newContractURI;
// Emit an event with the update.
emit ContractURIUpdated(newContractURI);
}
/**
* @notice Emit an event notifying metadata updates for
* a range of token ids, according to EIP-4906.
*
* @param fromTokenId The start token id.
* @param toTokenId The end token id.
*/
function emitBatchMetadataUpdate(
uint256 fromTokenId,
uint256 toTokenId
) external {
// Ensure the sender is only the owner or configurer contract.
_onlyOwnerOrConfigurer();
// Emit an event with the update.
if (fromTokenId == toTokenId) {
// If only one token is being updated, use the event
// in the 1155 spec.
emit URI(uri(fromTokenId), fromTokenId);
} else {
emit BatchMetadataUpdate(fromTokenId, toTokenId);
}
}
/**
* @notice Sets the max token supply and emits an event.
*
* @param tokenId The token id to set the max supply for.
* @param newMaxSupply The new max supply to set.
*/
function setMaxSupply(uint256 tokenId, uint256 newMaxSupply) external {
// Ensure the sender is only the owner or configurer contract.
_onlyOwnerOrConfigurer();
// Ensure the max supply does not exceed the maximum value of uint64,
// a limit due to the storage of bit-packed variables in TokenSupply,
if (newMaxSupply > 2 ** 64 - 1) {
revert CannotExceedMaxSupplyOfUint64(newMaxSupply);
}
// Set the new max supply.
_tokenSupply[tokenId].maxSupply = uint64(newMaxSupply);
// Emit an event with the update.
emit MaxSupplyUpdated(tokenId, newMaxSupply);
}
/**
* @notice Sets the provenance hash and emits an event.
*
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it has not been
* modified after mint started.
*
* This function will revert if the provenance hash has already
* been set, so be sure to carefully set it only once.
*
* @param newProvenanceHash The new provenance hash to set.
*/
function setProvenanceHash(bytes32 newProvenanceHash) external {
// Ensure the sender is only the owner or configurer contract.
_onlyOwnerOrConfigurer();
// Keep track of the old provenance hash for emitting with the event.
bytes32 oldProvenanceHash = _provenanceHash;
// Revert if the provenance hash has already been set.
if (oldProvenanceHash != bytes32(0)) {
revert ProvenanceHashCannotBeSetAfterAlreadyBeingSet();
}
// Set the new provenance hash.
_provenanceHash = newProvenanceHash;
// Emit an event with the update.
emit ProvenanceHashUpdated(oldProvenanceHash, newProvenanceHash);
}
/**
* @notice Sets the default royalty information.
*
* Requirements:
*
* - `receiver` cannot be the zero address.
* - `feeNumerator` cannot be greater than the fee denominator of 10_000 basis points.
*/
function setDefaultRoyalty(address receiver, uint96 feeNumerator) external {
// Ensure the sender is only the owner or configurer contract.
_onlyOwnerOrConfigurer();
// Set the default royalty.
// ERC2981 implementation ensures feeNumerator <= feeDenominator
// and receiver != address(0).
_setDefaultRoyalty(receiver, feeNumerator);
// Emit an event with the updated params.
emit RoyaltyInfoUpdated(receiver, feeNumerator);
}
/**
* @notice Returns the name of the token.
*/
function name() external view returns (string memory) {
return _name;
}
/**
* @notice Returns the symbol of the token.
*/
function symbol() external view returns (string memory) {
return _symbol;
}
/**
* @notice Returns the base URI for token metadata.
*/
function baseURI() external view override returns (string memory) {
return _baseURI;
}
/**
* @notice Returns the contract URI for contract metadata.
*/
function contractURI() external view override returns (string memory) {
return _contractURI;
}
/**
* @notice Returns the max token supply for a token id.
*/
function maxSupply(uint256 tokenId) external view returns (uint256) {
return _tokenSupply[tokenId].maxSupply;
}
/**
* @notice Returns the total supply for a token id.
*/
function totalSupply(uint256 tokenId) external view returns (uint256) {
return _tokenSupply[tokenId].totalSupply;
}
/**
* @notice Returns the total minted for a token id.
*/
function totalMinted(uint256 tokenId) external view returns (uint256) {
return _tokenSupply[tokenId].totalMinted;
}
/**
* @notice Returns the provenance hash.
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it is unmodified
* after mint has started.
*/
function provenanceHash() external view override returns (bytes32) {
return _provenanceHash;
}
/**
* @notice Returns the URI for token metadata.
*
* This implementation returns the same URI for *all* token types.
* It relies on the token type ID substitution mechanism defined
* in the EIP to replace {id} with the token id.
*
* @custom:param tokenId The token id to get the URI for.
*/
function uri(
uint256 /* tokenId */
) public view virtual override returns (string memory) {
// Return the base URI.
return _baseURI;
}
/**
* @notice Returns whether the interface is supported.
*
* @param interfaceId The interface id to check against.
*/
function supportsInterface(
bytes4 interfaceId
) public view virtual override(ERC1155, ERC2981) returns (bool) {
return
interfaceId == type(IERC1155ContractMetadata).interfaceId ||
interfaceId == 0x49064906 || // ERC-4906 (MetadataUpdate)
ERC2981.supportsInterface(interfaceId) ||
// ERC1155 returns supportsInterface true for
// ERC165, ERC1155, ERC1155MetadataURI
ERC1155.supportsInterface(interfaceId);
}
/**
* @dev Adds to the internal counters for a mint.
*
* @param to The address to mint to.
* @param id The token id to mint.
* @param amount The quantity to mint.
* @param data The data to pass if receiver is a contract.
*/
function _mint(
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual override {
// Increment mint counts.
_incrementMintCounts(to, id, amount);
ERC1155._mint(to, id, amount, data);
}
/**
* @dev Adds to the internal counters for a batch mint.
*
* @param to The address to mint to.
* @param ids The token ids to mint.
* @param amounts The quantities to mint.
* @param data The data to pass if receiver is a contract.
*/
function _batchMint(
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual override {
// Put ids length on the stack to save MLOADs.
uint256 idsLength = ids.length;
for (uint256 i = 0; i < idsLength; ) {
// Increment mint counts.
_incrementMintCounts(to, ids[i], amounts[i]);
unchecked {
++i;
}
}
ERC1155._batchMint(to, ids, amounts, data);
}
/**
* @dev Subtracts from the internal counters for a burn.
*
* @param by The address calling the burn.
* @param from The address to burn from.
* @param id The token id to burn.
* @param amount The amount to burn.
*/
function _burn(
address by,
address from,
uint256 id,
uint256 amount
) internal virtual override {
// Reduce the supply.
_reduceSupplyOnBurn(id, amount);
ERC1155._burn(by, from, id, amount);
}
/**
* @dev Subtracts from the internal counters for a batch burn.
*
* @param by The address calling the burn.
* @param from The address to burn from.
* @param ids The token ids to burn.
* @param amounts The amounts to burn.
*/
function _batchBurn(
address by,
address from,
uint256[] memory ids,
uint256[] memory amounts
) internal virtual override {
// Put ids length on the stack to save MLOADs.
uint256 idsLength = ids.length;
for (uint256 i = 0; i < idsLength; ) {
// Reduce the supply.
_reduceSupplyOnBurn(ids[i], amounts[i]);
unchecked {
++i;
}
}
ERC1155._batchBurn(by, from, ids, amounts);
}
function _reduceSupplyOnBurn(uint256 id, uint256 amount) internal {
// Get the current token supply.
TokenSupply storage tokenSupply = _tokenSupply[id];
// Reduce the totalSupply.
unchecked {
tokenSupply.totalSupply -= uint64(amount);
}
}
/**
* @dev Internal function to increment mint counts.
*
* Note that this function does not check if the mint exceeds
* maxSupply, which should be validated before this function is called.
*
* @param to The address to mint to.
* @param id The token id to mint.
* @param amount The quantity to mint.
*/
function _incrementMintCounts(
address to,
uint256 id,
uint256 amount
) internal {
// Get the current token supply.
TokenSupply storage tokenSupply = _tokenSupply[id];
if (tokenSupply.totalMinted + amount > tokenSupply.maxSupply) {
revert MintExceedsMaxSupply(
tokenSupply.totalMinted + amount,
tokenSupply.maxSupply
);
}
// Increment supply and number minted.
// Can be unchecked because maxSupply cannot be set to exceed uint64.
unchecked {
tokenSupply.totalSupply += uint64(amount);
tokenSupply.totalMinted += uint64(amount);
// Increment total minted by user.
_totalMintedByUser[to] += amount;
// Increment total minted by user per token.
_totalMintedByUserPerToken[to][id] += amount;
}
}
}
// File: src/lib/ERC1155SeaDropContractOffererStorage.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { PublicDrop } from "./ERC1155SeaDropStructs.sol";
import { CreatorPayout } from "./SeaDropStructs.sol";
library ERC1155SeaDropContractOffererStorage {
struct Layout {
/// @notice The allowed Seaport addresses that can mint.
mapping(address => bool) _allowedSeaport;
/// @notice The enumerated allowed Seaport addresses.
address[] _enumeratedAllowedSeaport;
/// @notice The public drop data.
mapping(uint256 => PublicDrop) _publicDrops;
/// @notice The enumerated public drop indexes.
uint256[] _enumeratedPublicDropIndexes;
/// @notice The creator payout addresses and basis points.
CreatorPayout[] _creatorPayouts;
/// @notice The allow list merkle root.
bytes32 _allowListMerkleRoot;
/// @notice The allowed fee recipients.
mapping(address => bool) _allowedFeeRecipients;
/// @notice The enumerated allowed fee recipients.
address[] _enumeratedFeeRecipients;
/// @notice The allowed server-side signers.
mapping(address => bool) _allowedSigners;
/// @notice The enumerated allowed signers.
address[] _enumeratedSigners;
/// @notice The used signature digests.
mapping(bytes32 => bool) _usedDigests;
/// @notice The allowed payers.
mapping(address => bool) _allowedPayers;
/// @notice The enumerated allowed payers.
address[] _enumeratedPayers;
}
bytes32 internal constant STORAGE_SLOT =
bytes32(
uint256(
keccak256("contracts.storage.ERC1155SeaDropContractOfferer")
) - 1
);
function layout() internal pure returns (Layout storage l) {
bytes32 slot = STORAGE_SLOT;
assembly {
l.slot := slot
}
}
}
// File: src/lib/ERC1155SeaDropErrorsAndEvents.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { PublicDrop } from "./ERC1155SeaDropStructs.sol";
import { SeaDropErrorsAndEvents } from "./SeaDropErrorsAndEvents.sol";
interface ERC1155SeaDropErrorsAndEvents is SeaDropErrorsAndEvents {
/**
* @dev Revert with an error if an empty PublicDrop is provided
* for an already-empty public drop.
*/
error PublicDropStageNotPresent();
/**
* @dev Revert with an error if the mint quantity exceeds the
* max minted per wallet for a certain token id.
*/
error MintQuantityExceedsMaxMintedPerWalletForTokenId(
uint256 tokenId,
uint256 total,
uint256 allowed
);
/**
* @dev Revert with an error if the target token id to mint is not within
* the drop stage range.
*/
error TokenIdNotWithinDropStageRange(
uint256 tokenId,
uint256 startTokenId,
uint256 endTokenId
);
/**
* @notice Revert with an error if the number of maxSupplyAmounts doesn't
* match the number of maxSupplyTokenIds.
*/
error MaxSupplyMismatch();
/**
* @notice Revert with an error if the number of mint tokenIds doesn't
* match the number of mint amounts.
*/
error MintAmountsMismatch();
/**
* @notice Revert with an error if the mint order offer contains
* a duplicate tokenId.
*/
error OfferContainsDuplicateTokenId(uint256 tokenId);
/**
* @dev Revert if the fromTokenId is greater than the toTokenId.
*/
error InvalidFromAndToTokenId(uint256 fromTokenId, uint256 toTokenId);
/**
* @notice Revert with an error if the number of publicDropIndexes doesn't
* match the number of publicDrops.
*/
error PublicDropsMismatch();
/**
* @dev An event with updated public drop data.
*/
event PublicDropUpdated(PublicDrop publicDrop, uint256 index);
}
// File: src/lib/ERC1155SeaDropStructs.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { AllowListData, CreatorPayout } from "./SeaDropStructs.sol";
/**
* @notice A struct defining public drop data.
* Designed to fit efficiently in two storage slots.
*
* @param startPrice The start price per token. (Up to 1.2m
* of native token, e.g. ETH, MATIC)
* @param endPrice The end price per token. If this differs
* from startPrice, the current price will
* be calculated based on the current time.
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
* @param paymentToken The payment token address. Null for
* native token.
* @param fromTokenId The start token id for the stage.
* @param toTokenId The end token id for the stage.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed. (The limit for this field is
* 2^16 - 1)
* @param maxTotalMintableByWalletPerToken Maximum total number of mints a user
* is allowed for the token id. (The limit for
* this field is 2^16 - 1)
* @param feeBps Fee out of 10_000 basis points to be
* collected.
*/
struct PublicDrop {
// slot 1
uint80 startPrice; // 80/512 bits
uint80 endPrice; // 160/512 bits
uint40 startTime; // 200/512 bits
uint40 endTime; // 240/512 bits
bool restrictFeeRecipients; // 248/512 bits
// uint8 unused;
// slot 2
address paymentToken; // 408/512 bits
uint24 fromTokenId; // 432/512 bits
uint24 toTokenId; // 456/512 bits
uint16 maxTotalMintableByWallet; // 472/512 bits
uint16 maxTotalMintableByWalletPerToken; // 488/512 bits
uint16 feeBps; // 504/512 bits
}
/**
* @notice A struct defining mint params for an allow list.
* An allow list leaf will be composed of `msg.sender` and
* the following params.
*
* Note: Since feeBps is encoded in the leaf, backend should ensure
* that feeBps is acceptable before generating a proof.
*
* @param startPrice The start price per token. (Up to 1.2m
* of native token, e.g. ETH, MATIC)
* @param endPrice The end price per token. If this differs
* from startPrice, the current price will
* be calculated based on the current time.
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param paymentToken The payment token for the mint. Null for
* native token.
* @param fromTokenId The start token id for the stage.
* @param toTokenId The end token id for the stage.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed.
* @param maxTotalMintableByWalletPerToken Maximum total number of mints a user
* is allowed for the token id.
* @param maxTokenSupplyForStage The limit of token supply this stage can
* mint within.
* @param dropStageIndex The drop stage index to emit with the event
* for analytical purposes. This should be
* non-zero since the public mint emits with
* index zero.
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct MintParams {
uint256 startPrice;
uint256 endPrice;
uint256 startTime;
uint256 endTime;
address paymentToken;
uint256 fromTokenId;
uint256 toTokenId;
uint256 maxTotalMintableByWallet;
uint256 maxTotalMintableByWalletPerToken;
uint256 maxTokenSupplyForStage;
uint256 dropStageIndex; // non-zero
uint256 feeBps;
bool restrictFeeRecipients;
}
/**
* @dev Struct containing internal SeaDrop implementation logic
* mint details to avoid stack too deep.
*
* @param feeRecipient The fee recipient.
* @param payer The payer of the mint.
* @param minter The mint recipient.
* @param tokenIds The tokenIds to mint.
* @param quantities The number of tokens to mint per tokenId.
* @param withEffects Whether to apply state changes of the mint.
*/
struct MintDetails {
address feeRecipient;
address payer;
address minter;
uint256[] tokenIds;
uint256[] quantities;
bool withEffects;
}
/**
* @notice A struct to configure multiple contract options in one transaction.
*/
struct MultiConfigureStruct {
uint256[] maxSupplyTokenIds;
uint256[] maxSupplyAmounts;
string baseURI;
string contractURI;
PublicDrop[] publicDrops;
uint256[] publicDropsIndexes;
string dropURI;
AllowListData allowListData;
CreatorPayout[] creatorPayouts;
bytes32 provenanceHash;
address[] allowedFeeRecipients;
address[] disallowedFeeRecipients;
address[] allowedPayers;
address[] disallowedPayers;
// Server-signed
address[] allowedSigners;
address[] disallowedSigners;
// ERC-2981
address royaltyReceiver;
uint96 royaltyBps;
// Mint
address mintRecipient;
uint256[] mintTokenIds;
uint256[] mintAmounts;
}
// File: src/lib/SeaDropStructs.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
/**
* @notice A struct defining a creator payout address and basis points.
*
* @param payoutAddress The payout address.
* @param basisPoints The basis points to pay out to the creator.
* The total creator payouts must equal 10_000 bps.
*/
struct CreatorPayout {
address payoutAddress;
uint16 basisPoints;
}
/**
* @notice A struct defining allow list data (for minting an allow list).
*
* @param merkleRoot The merkle root for the allow list.
* @param publicKeyURIs If the allowListURI is encrypted, a list of URIs
* pointing to the public keys. Empty if unencrypted.
* @param allowListURI The URI for the allow list.
*/
struct AllowListData {
bytes32 merkleRoot;
string[] publicKeyURIs;
string allowListURI;
}
// File: src/lib/ERC1155ConduitPreapproved.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { ERC1155 } from "solady/src/tokens/ERC1155.sol";
/**
* @title ERC1155ConduitPreapproved
* @notice Solady's ERC1155 with the OpenSea conduit preapproved.
*/
abstract contract ERC1155ConduitPreapproved is ERC1155 {
/// @dev The canonical OpenSea conduit.
address internal constant _CONDUIT =
0x1E0049783F008A0085193E00003D00cd54003c71;
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) public virtual override {
_safeTransfer(_by(), from, to, id, amount, data);
}
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) public virtual override {
_safeBatchTransfer(_by(), from, to, ids, amounts, data);
}
function isApprovedForAll(
address owner,
address operator
) public view virtual override returns (bool) {
if (operator == _CONDUIT) return true;
return ERC1155.isApprovedForAll(owner, operator);
}
function _by() internal view returns (address result) {
assembly {
// `msg.sender == _CONDUIT ? address(0) : msg.sender`.
result := mul(iszero(eq(caller(), _CONDUIT)), caller())
}
}
}
// File: lib/solady/src/tokens/ERC1155.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple ERC1155 implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC1155.sol)
/// @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC1155.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/tree/master/contracts/token/ERC1155/ERC1155.sol)
///
/// @dev Note:
/// The ERC1155 standard allows for self-approvals.
/// For performance, this implementation WILL NOT revert for such actions.
/// Please add any checks with overrides if desired.
abstract contract ERC1155 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The lengths of the input arrays are not the same.
error ArrayLengthsMismatch();
/// @dev Cannot mint or transfer to the zero address.
error TransferToZeroAddress();
/// @dev The recipient's balance has overflowed.
error AccountBalanceOverflow();
/// @dev Insufficient balance.
error InsufficientBalance();
/// @dev Only the token owner or an approved account can manage the tokens.
error NotOwnerNorApproved();
/// @dev Cannot safely transfer to a contract that does not implement
/// the ERC1155Receiver interface.
error TransferToNonERC1155ReceiverImplementer();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Emitted when `amount` of token `id` is transferred
/// from `from` to `to` by `operator`.
event TransferSingle(
address indexed operator,
address indexed from,
address indexed to,
uint256 id,
uint256 amount
);
/// @dev Emitted when `amounts` of token `ids` are transferred
/// from `from` to `to` by `operator`.
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] amounts
);
/// @dev Emitted when `owner` enables or disables `operator` to manage all of their tokens.
event ApprovalForAll(address indexed owner, address indexed operator, bool isApproved);
/// @dev Emitted when the Uniform Resource Identifier (URI) for token `id`
/// is updated to `value`. This event is not used in the base contract.
/// You may need to emit this event depending on your URI logic.
///
/// See: https://eips.ethereum.org/EIPS/eip-1155#metadata
event URI(string value, uint256 indexed id);
/// @dev `keccak256(bytes("TransferSingle(address,address,address,uint256,uint256)"))`.
uint256 private constant _TRANSFER_SINGLE_EVENT_SIGNATURE =
0xc3d58168c5ae7397731d063d5bbf3d657854427343f4c083240f7aacaa2d0f62;
/// @dev `keccak256(bytes("TransferBatch(address,address,address,uint256[],uint256[])"))`.
uint256 private constant _TRANSFER_BATCH_EVENT_SIGNATURE =
0x4a39dc06d4c0dbc64b70af90fd698a233a518aa5d07e595d983b8c0526c8f7fb;
/// @dev `keccak256(bytes("ApprovalForAll(address,address,bool)"))`.
uint256 private constant _APPROVAL_FOR_ALL_EVENT_SIGNATURE =
0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The `ownerSlotSeed` of a given owner is given by.
/// ```
/// let ownerSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, owner))
/// ```
///
/// The balance slot of `owner` is given by.
/// ```
/// mstore(0x20, ownerSlotSeed)
/// mstore(0x00, id)
/// let balanceSlot := keccak256(0x00, 0x40)
/// ```
///
/// The operator approval slot of `owner` is given by.
/// ```
/// mstore(0x20, ownerSlotSeed)
/// mstore(0x00, operator)
/// let operatorApprovalSlot := keccak256(0x0c, 0x34)
/// ```
uint256 private constant _ERC1155_MASTER_SLOT_SEED = 0x9a31110384e0b0c9;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC1155 METADATA */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the URI for token `id`.
///
/// You can either return the same templated URI for all token IDs,
/// (e.g. "https://example.com/api/{id}.json"),
/// or return a unique URI for each `id`.
///
/// See: https://eips.ethereum.org/EIPS/eip-1155#metadata
function uri(uint256 id) public view virtual returns (string memory);
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC1155 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the amount of `id` owned by `owner`.
function balanceOf(address owner, uint256 id) public view virtual returns (uint256 result) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, _ERC1155_MASTER_SLOT_SEED)
mstore(0x14, owner)
mstore(0x00, id)
result := sload(keccak256(0x00, 0x40))
}
}
/// @dev Returns whether `operator` is approved to manage the tokens of `owner`.
function isApprovedForAll(address owner, address operator)
public
view
virtual
returns (bool result)
{
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, _ERC1155_MASTER_SLOT_SEED)
mstore(0x14, owner)
mstore(0x00, operator)
result := sload(keccak256(0x0c, 0x34))
}
}
/// @dev Sets whether `operator` is approved to manage the tokens of the caller.
///
/// Emits a {ApprovalForAll} event.
function setApprovalForAll(address operator, bool isApproved) public virtual {
/// @solidity memory-safe-assembly
assembly {
// Convert to 0 or 1.
isApproved := iszero(iszero(isApproved))
// Update the `isApproved` for (`msg.sender`, `operator`).
mstore(0x20, _ERC1155_MASTER_SLOT_SEED)
mstore(0x14, caller())
mstore(0x00, operator)
sstore(keccak256(0x0c, 0x34), isApproved)
// Emit the {ApprovalForAll} event.
mstore(0x00, isApproved)
// forgefmt: disable-next-line
log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, caller(), shr(96, shl(96, operator)))
}
}
/// @dev Transfers `amount` of `id` from `from` to `to`.
///
/// Requirements:
/// - `to` cannot be the zero address.
/// - `from` must have at least `amount` of `id`.
/// - If the caller is not `from`,
/// it must be approved to manage the tokens of `from`.
/// - If `to` refers to a smart contract, it must implement
/// {ERC1155-onERC1155Reveived}, which is called upon a batch transfer.
///
/// Emits a {Transfer} event.
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) public virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(from, to, _single(id), _single(amount), data);
}
/// @solidity memory-safe-assembly
assembly {
let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, from))
let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, to))
mstore(0x20, fromSlotSeed)
// Clear the upper 96 bits.
from := shr(96, fromSlotSeed)
to := shr(96, toSlotSeed)
// Revert if `to` is the zero address.
if iszero(to) {
mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.
revert(0x1c, 0x04)
}
// If the caller is not `from`, do the authorization check.
if iszero(eq(caller(), from)) {
mstore(0x00, caller())
if iszero(sload(keccak256(0x0c, 0x34))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Subtract and store the updated balance of `from`.
{
mstore(0x00, id)
let fromBalanceSlot := keccak256(0x00, 0x40)
let fromBalance := sload(fromBalanceSlot)
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
sstore(fromBalanceSlot, sub(fromBalance, amount))
}
// Increase and store the updated balance of `to`.
{
mstore(0x20, toSlotSeed)
let toBalanceSlot := keccak256(0x00, 0x40)
let toBalanceBefore := sload(toBalanceSlot)
let toBalanceAfter := add(toBalanceBefore, amount)
if lt(toBalanceAfter, toBalanceBefore) {
mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceAfter)
}
// Emit a {TransferSingle} event.
mstore(0x20, amount)
log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), from, to)
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(from, to, _single(id), _single(amount), data);
}
/// @solidity memory-safe-assembly
assembly {
// Do the {onERC1155Received} check if `to` is a smart contract.
if extcodesize(to) {
// Prepare the calldata.
let m := mload(0x40)
// `onERC1155Received(address,address,uint256,uint256,bytes)`.
mstore(m, 0xf23a6e61)
mstore(add(m, 0x20), caller())
mstore(add(m, 0x40), from)
mstore(add(m, 0x60), id)
mstore(add(m, 0x80), amount)
mstore(add(m, 0xa0), 0xa0)
calldatacopy(add(m, 0xc0), sub(data.offset, 0x20), add(0x20, data.length))
// Revert if the call reverts.
if iszero(call(gas(), to, 0, add(m, 0x1c), add(0xc4, data.length), m, 0x20)) {
if returndatasize() {
// Bubble up the revert if the call reverts.
returndatacopy(0x00, 0x00, returndatasize())
revert(0x00, returndatasize())
}
mstore(m, 0)
}
// Load the returndata and compare it with the function selector.
if iszero(eq(mload(m), shl(224, 0xf23a6e61))) {
mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.
revert(0x1c, 0x04)
}
}
}
}
/// @dev Transfers `amounts` of `ids` from `from` to `to`.
///
/// Requirements:
/// - `to` cannot be the zero address.
/// - `from` must have at least `amount` of `id`.
/// - `ids` and `amounts` must have the same length.
/// - If the caller is not `from`,
/// it must be approved to manage the tokens of `from`.
/// - If `to` refers to a smart contract, it must implement
/// {ERC1155-onERC1155BatchReveived}, which is called upon a batch transfer.
///
/// Emits a {TransferBatch} event.
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) public virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(from, to, ids, amounts, data);
}
/// @solidity memory-safe-assembly
assembly {
if iszero(eq(ids.length, amounts.length)) {
mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.
revert(0x1c, 0x04)
}
let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, from))
let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, shl(96, to))
mstore(0x20, fromSlotSeed)
// Clear the upper 96 bits.
from := shr(96, fromSlotSeed)
to := shr(96, toSlotSeed)
// Revert if `to` is the zero address.
if iszero(to) {
mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.
revert(0x1c, 0x04)
}
// If the caller is not `from`, do the authorization check.
if iszero(eq(caller(), from)) {
mstore(0x00, caller())
if iszero(sload(keccak256(0x0c, 0x34))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Loop through all the `ids` and update the balances.
{
let end := shl(5, ids.length)
for { let i := 0 } iszero(eq(i, end)) { i := add(i, 0x20) } {
let amount := calldataload(add(amounts.offset, i))
// Subtract and store the updated balance of `from`.
{
mstore(0x20, fromSlotSeed)
mstore(0x00, calldataload(add(ids.offset, i)))
let fromBalanceSlot := keccak256(0x00, 0x40)
let fromBalance := sload(fromBalanceSlot)
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
sstore(fromBalanceSlot, sub(fromBalance, amount))
}
// Increase and store the updated balance of `to`.
{
mstore(0x20, toSlotSeed)
let toBalanceSlot := keccak256(0x00, 0x40)
let toBalanceBefore := sload(toBalanceSlot)
let toBalanceAfter := add(toBalanceBefore, amount)
if lt(toBalanceAfter, toBalanceBefore) {
mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceAfter)
}
}
}
// Emit a {TransferBatch} event.
{
let m := mload(0x40)
// Copy the `ids`.
mstore(m, 0x40)
let n := add(0x20, shl(5, ids.length))
let o := add(m, 0x40)
calldatacopy(o, sub(ids.offset, 0x20), n)
// Copy the `amounts`.
mstore(add(m, 0x20), add(0x40, n))
o := add(o, n)
n := add(0x20, shl(5, amounts.length))
calldatacopy(o, sub(amounts.offset, 0x20), n)
n := sub(add(o, n), m)
// Do the emit.
log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), from, to)
}
}
if (_useAfterTokenTransfer()) {
_afterTokenTransferCalldata(from, to, ids, amounts, data);
}
/// @solidity memory-safe-assembly
assembly {
// Do the {onERC1155BatchReceived} check if `to` is a smart contract.
if extcodesize(to) {
let m := mload(0x40)
// Prepare the calldata.
// `onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)`.
mstore(m, 0xbc197c81)
mstore(add(m, 0x20), caller())
mstore(add(m, 0x40), from)
// Copy the `ids`.
mstore(add(m, 0x60), 0xa0)
let n := add(0x20, shl(5, ids.length))
let o := add(m, 0xc0)
calldatacopy(o, sub(ids.offset, 0x20), n)
// Copy the `amounts`.
let s := add(0xa0, n)
mstore(add(m, 0x80), s)
o := add(o, n)
n := add(0x20, shl(5, amounts.length))
calldatacopy(o, sub(amounts.offset, 0x20), n)
// Copy the `data`.
mstore(add(m, 0xa0), add(s, n))
o := add(o, n)
n := add(0x20, data.length)
calldatacopy(o, sub(data.offset, 0x20), n)
n := sub(add(o, n), add(m, 0x1c))
// Revert if the call reverts.
if iszero(call(gas(), to, 0, add(m, 0x1c), n, m, 0x20)) {
if returndatasize() {
// Bubble up the revert if the call reverts.
returndatacopy(0x00, 0x00, returndatasize())
revert(0x00, returndatasize())
}
mstore(m, 0)
}
// Load the returndata and compare it with the function selector.
if iszero(eq(mload(m), shl(224, 0xbc197c81))) {
mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.
revert(0x1c, 0x04)
}
}
}
}
/// @dev Returns the amounts of `ids` for `owners.
///
/// Requirements:
/// - `owners` and `ids` must have the same length.
function balanceOfBatch(address[] calldata owners, uint256[] calldata ids)
public
view
virtual
returns (uint256[] memory balances)
{
/// @solidity memory-safe-assembly
assembly {
if iszero(eq(ids.length, owners.length)) {
mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.
revert(0x1c, 0x04)
}
balances := mload(0x40)
mstore(balances, ids.length)
let o := add(balances, 0x20)
let end := shl(5, ids.length)
mstore(0x40, add(end, o))
// Loop through all the `ids` and load the balances.
for { let i := 0 } iszero(eq(i, end)) { i := add(i, 0x20) } {
let owner := calldataload(add(owners.offset, i))
mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, shl(96, owner)))
mstore(0x00, calldataload(add(ids.offset, i)))
mstore(add(o, i), sload(keccak256(0x00, 0x40)))
}
}
}
/// @dev Returns true if this contract implements the interface defined by `interfaceId`.
/// See: https://eips.ethereum.org/EIPS/eip-165
/// This function call must use less than 30000 gas.
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC1155: 0xd9b67a26, ERC1155MetadataURI: 0x0e89341c.
result := or(or(eq(s, 0x01ffc9a7), eq(s, 0xd9b67a26)), eq(s, 0x0e89341c))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL MINT FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Mints `amount` of `id` to `to`.
///
/// Requirements:
/// - `to` cannot be the zero address.
/// - If `to` refers to a smart contract, it must implement
/// {ERC1155-onERC1155Reveived}, which is called upon a batch transfer.
///
/// Emits a {Transfer} event.
function _mint(address to, uint256 id, uint256 amount, bytes memory data) internal virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(address(0), to, _single(id), _single(amount), data);
}
/// @solidity memory-safe-assembly
assembly {
let to_ := shl(96, to)
// Revert if `to` is the zero address.
if iszero(to_) {
mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.
revert(0x1c, 0x04)
}
// Increase and store the updated balance of `to`.
{
mstore(0x20, _ERC1155_MASTER_SLOT_SEED)
mstore(0x14, to)
mstore(0x00, id)
let toBalanceSlot := keccak256(0x00, 0x40)
let toBalanceBefore := sload(toBalanceSlot)
let toBalanceAfter := add(toBalanceBefore, amount)
if lt(toBalanceAfter, toBalanceBefore) {
mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceAfter)
}
// Emit a {TransferSingle} event.
mstore(0x00, id)
mstore(0x20, amount)
log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), 0, shr(96, to_))
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(address(0), to, _single(id), _single(amount), data);
}
if (_hasCode(to)) _checkOnERC1155Received(address(0), to, id, amount, data);
}
/// @dev Mints `amounts` of `ids` to `to`.
///
/// Requirements:
/// - `to` cannot be the zero address.
/// - `ids` and `amounts` must have the same length.
/// - If `to` refers to a smart contract, it must implement
/// {ERC1155-onERC1155BatchReveived}, which is called upon a batch transfer.
///
/// Emits a {TransferBatch} event.
function _batchMint(
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(address(0), to, ids, amounts, data);
}
/// @solidity memory-safe-assembly
assembly {
if iszero(eq(mload(ids), mload(amounts))) {
mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.
revert(0x1c, 0x04)
}
let to_ := shl(96, to)
// Revert if `to` is the zero address.
if iszero(to_) {
mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.
revert(0x1c, 0x04)
}
// Loop through all the `ids` and update the balances.
{
mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, to_))
let end := shl(5, mload(ids))
for { let i := 0 } iszero(eq(i, end)) {} {
i := add(i, 0x20)
let amount := mload(add(amounts, i))
// Increase and store the updated balance of `to`.
{
mstore(0x00, mload(add(ids, i)))
let toBalanceSlot := keccak256(0x00, 0x40)
let toBalanceBefore := sload(toBalanceSlot)
let toBalanceAfter := add(toBalanceBefore, amount)
if lt(toBalanceAfter, toBalanceBefore) {
mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceAfter)
}
}
}
// Emit a {TransferBatch} event.
{
let m := mload(0x40)
// Copy the `ids`.
mstore(m, 0x40)
let n := add(0x20, shl(5, mload(ids)))
let o := add(m, 0x40)
pop(staticcall(gas(), 4, ids, n, o, n))
// Copy the `amounts`.
mstore(add(m, 0x20), add(0x40, returndatasize()))
o := add(o, returndatasize())
n := add(0x20, shl(5, mload(amounts)))
pop(staticcall(gas(), 4, amounts, n, o, n))
n := sub(add(o, returndatasize()), m)
// Do the emit.
log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), 0, shr(96, to_))
}
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(address(0), to, ids, amounts, data);
}
if (_hasCode(to)) _checkOnERC1155BatchReceived(address(0), to, ids, amounts, data);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL BURN FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Equivalent to `_burn(address(0), from, id, amount)`.
function _burn(address from, uint256 id, uint256 amount) internal virtual {
_burn(address(0), from, id, amount);
}
/// @dev Destroys `amount` of `id` from `from`.
///
/// Requirements:
/// - `from` must have at least `amount` of `id`.
/// - If `by` is not the zero address, it must be either `from`,
/// or approved to manage the tokens of `from`.
///
/// Emits a {Transfer} event.
function _burn(address by, address from, uint256 id, uint256 amount) internal virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(from, address(0), _single(id), _single(amount), "");
}
/// @solidity memory-safe-assembly
assembly {
let from_ := shl(96, from)
mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_))
// If `by` is not the zero address, and not equal to `from`,
// check if it is approved to manage all the tokens of `from`.
if iszero(or(iszero(shl(96, by)), eq(shl(96, by), from_))) {
mstore(0x00, by)
if iszero(sload(keccak256(0x0c, 0x34))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Decrease and store the updated balance of `from`.
{
mstore(0x00, id)
let fromBalanceSlot := keccak256(0x00, 0x40)
let fromBalance := sload(fromBalanceSlot)
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
sstore(fromBalanceSlot, sub(fromBalance, amount))
}
// Emit a {TransferSingle} event.
mstore(0x00, id)
mstore(0x20, amount)
log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), shr(96, from_), 0)
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(from, address(0), _single(id), _single(amount), "");
}
}
/// @dev Equivalent to `_batchBurn(address(0), from, ids, amounts)`.
function _batchBurn(address from, uint256[] memory ids, uint256[] memory amounts)
internal
virtual
{
_batchBurn(address(0), from, ids, amounts);
}
/// @dev Destroys `amounts` of `ids` from `from`.
///
/// Requirements:
/// - `ids` and `amounts` must have the same length.
/// - `from` must have at least `amounts` of `ids`.
/// - If `by` is not the zero address, it must be either `from`,
/// or approved to manage the tokens of `from`.
///
/// Emits a {TransferBatch} event.
function _batchBurn(address by, address from, uint256[] memory ids, uint256[] memory amounts)
internal
virtual
{
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(from, address(0), ids, amounts, "");
}
/// @solidity memory-safe-assembly
assembly {
if iszero(eq(mload(ids), mload(amounts))) {
mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.
revert(0x1c, 0x04)
}
let from_ := shl(96, from)
mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_))
// If `by` is not the zero address, and not equal to `from`,
// check if it is approved to manage all the tokens of `from`.
let by_ := shl(96, by)
if iszero(or(iszero(by_), eq(by_, from_))) {
mstore(0x00, by)
if iszero(sload(keccak256(0x0c, 0x34))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Loop through all the `ids` and update the balances.
{
let end := shl(5, mload(ids))
for { let i := 0 } iszero(eq(i, end)) {} {
i := add(i, 0x20)
let amount := mload(add(amounts, i))
// Decrease and store the updated balance of `to`.
{
mstore(0x00, mload(add(ids, i)))
let fromBalanceSlot := keccak256(0x00, 0x40)
let fromBalance := sload(fromBalanceSlot)
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
sstore(fromBalanceSlot, sub(fromBalance, amount))
}
}
}
// Emit a {TransferBatch} event.
{
let m := mload(0x40)
// Copy the `ids`.
mstore(m, 0x40)
let n := add(0x20, shl(5, mload(ids)))
let o := add(m, 0x40)
pop(staticcall(gas(), 4, ids, n, o, n))
// Copy the `amounts`.
mstore(add(m, 0x20), add(0x40, returndatasize()))
o := add(o, returndatasize())
n := add(0x20, shl(5, mload(amounts)))
pop(staticcall(gas(), 4, amounts, n, o, n))
n := sub(add(o, returndatasize()), m)
// Do the emit.
log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), shr(96, from_), 0)
}
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(from, address(0), ids, amounts, "");
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL APPROVAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Approve or remove the `operator` as an operator for `by`,
/// without authorization checks.
///
/// Emits a {ApprovalForAll} event.
function _setApprovalForAll(address by, address operator, bool isApproved) internal virtual {
/// @solidity memory-safe-assembly
assembly {
// Convert to 0 or 1.
isApproved := iszero(iszero(isApproved))
// Update the `isApproved` for (`by`, `operator`).
mstore(0x20, _ERC1155_MASTER_SLOT_SEED)
mstore(0x14, by)
mstore(0x00, operator)
sstore(keccak256(0x0c, 0x34), isApproved)
// Emit the {ApprovalForAll} event.
mstore(0x00, isApproved)
let m := shr(96, not(0))
log3(0x00, 0x20, _APPROVAL_FOR_ALL_EVENT_SIGNATURE, and(m, by), and(m, operator))
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL TRANSFER FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Equivalent to `_safeTransfer(address(0), from, to, id, amount, data)`.
function _safeTransfer(address from, address to, uint256 id, uint256 amount, bytes memory data)
internal
virtual
{
_safeTransfer(address(0), from, to, id, amount, data);
}
/// @dev Transfers `amount` of `id` from `from` to `to`.
///
/// Requirements:
/// - `to` cannot be the zero address.
/// - `from` must have at least `amount` of `id`.
/// - If `by` is not the zero address, it must be either `from`,
/// or approved to manage the tokens of `from`.
/// - If `to` refers to a smart contract, it must implement
/// {ERC1155-onERC1155Reveived}, which is called upon a batch transfer.
///
/// Emits a {Transfer} event.
function _safeTransfer(
address by,
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(from, to, _single(id), _single(amount), data);
}
/// @solidity memory-safe-assembly
assembly {
let from_ := shl(96, from)
let to_ := shl(96, to)
// Revert if `to` is the zero address.
if iszero(to_) {
mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.
revert(0x1c, 0x04)
}
mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, from_))
// If `by` is not the zero address, and not equal to `from`,
// check if it is approved to manage all the tokens of `from`.
let by_ := shl(96, by)
if iszero(or(iszero(by_), eq(by_, from_))) {
mstore(0x00, by)
if iszero(sload(keccak256(0x0c, 0x34))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Subtract and store the updated balance of `from`.
{
mstore(0x00, id)
let fromBalanceSlot := keccak256(0x00, 0x40)
let fromBalance := sload(fromBalanceSlot)
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
sstore(fromBalanceSlot, sub(fromBalance, amount))
}
// Increase and store the updated balance of `to`.
{
mstore(0x20, or(_ERC1155_MASTER_SLOT_SEED, to_))
let toBalanceSlot := keccak256(0x00, 0x40)
let toBalanceBefore := sload(toBalanceSlot)
let toBalanceAfter := add(toBalanceBefore, amount)
if lt(toBalanceAfter, toBalanceBefore) {
mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceAfter)
}
// Emit a {TransferSingle} event.
mstore(0x20, amount)
// forgefmt: disable-next-line
log4(0x00, 0x40, _TRANSFER_SINGLE_EVENT_SIGNATURE, caller(), shr(96, from_), shr(96, to_))
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(from, to, _single(id), _single(amount), data);
}
if (_hasCode(to)) _checkOnERC1155Received(from, to, id, amount, data);
}
/// @dev Equivalent to `_safeBatchTransfer(address(0), from, to, ids, amounts, data)`.
function _safeBatchTransfer(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
_safeBatchTransfer(address(0), from, to, ids, amounts, data);
}
/// @dev Transfers `amounts` of `ids` from `from` to `to`.
///
/// Requirements:
/// - `to` cannot be the zero address.
/// - `ids` and `amounts` must have the same length.
/// - `from` must have at least `amounts` of `ids`.
/// - If `by` is not the zero address, it must be either `from`,
/// or approved to manage the tokens of `from`.
/// - If `to` refers to a smart contract, it must implement
/// {ERC1155-onERC1155BatchReveived}, which is called upon a batch transfer.
///
/// Emits a {TransferBatch} event.
function _safeBatchTransfer(
address by,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {
if (_useBeforeTokenTransfer()) {
_beforeTokenTransfer(from, to, ids, amounts, data);
}
/// @solidity memory-safe-assembly
assembly {
if iszero(eq(mload(ids), mload(amounts))) {
mstore(0x00, 0x3b800a46) // `ArrayLengthsMismatch()`.
revert(0x1c, 0x04)
}
let from_ := shl(96, from)
let to_ := shl(96, to)
// Revert if `to` is the zero address.
if iszero(to_) {
mstore(0x00, 0xea553b34) // `TransferToZeroAddress()`.
revert(0x1c, 0x04)
}
let fromSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, from_)
let toSlotSeed := or(_ERC1155_MASTER_SLOT_SEED, to_)
mstore(0x20, fromSlotSeed)
// If `by` is not the zero address, and not equal to `from`,
// check if it is approved to manage all the tokens of `from`.
let by_ := shl(96, by)
if iszero(or(iszero(by_), eq(by_, from_))) {
mstore(0x00, by)
if iszero(sload(keccak256(0x0c, 0x34))) {
mstore(0x00, 0x4b6e7f18) // `NotOwnerNorApproved()`.
revert(0x1c, 0x04)
}
}
// Loop through all the `ids` and update the balances.
{
let end := shl(5, mload(ids))
for { let i := 0 } iszero(eq(i, end)) {} {
i := add(i, 0x20)
let amount := mload(add(amounts, i))
// Subtract and store the updated balance of `from`.
{
mstore(0x20, fromSlotSeed)
mstore(0x00, mload(add(ids, i)))
let fromBalanceSlot := keccak256(0x00, 0x40)
let fromBalance := sload(fromBalanceSlot)
if gt(amount, fromBalance) {
mstore(0x00, 0xf4d678b8) // `InsufficientBalance()`.
revert(0x1c, 0x04)
}
sstore(fromBalanceSlot, sub(fromBalance, amount))
}
// Increase and store the updated balance of `to`.
{
mstore(0x20, toSlotSeed)
let toBalanceSlot := keccak256(0x00, 0x40)
let toBalanceBefore := sload(toBalanceSlot)
let toBalanceAfter := add(toBalanceBefore, amount)
if lt(toBalanceAfter, toBalanceBefore) {
mstore(0x00, 0x01336cea) // `AccountBalanceOverflow()`.
revert(0x1c, 0x04)
}
sstore(toBalanceSlot, toBalanceAfter)
}
}
}
// Emit a {TransferBatch} event.
{
let m := mload(0x40)
// Copy the `ids`.
mstore(m, 0x40)
let n := add(0x20, shl(5, mload(ids)))
let o := add(m, 0x40)
pop(staticcall(gas(), 4, ids, n, o, n))
// Copy the `amounts`.
mstore(add(m, 0x20), add(0x40, returndatasize()))
o := add(o, returndatasize())
n := add(0x20, shl(5, mload(amounts)))
pop(staticcall(gas(), 4, amounts, n, o, n))
n := sub(add(o, returndatasize()), m)
// Do the emit.
log4(m, n, _TRANSFER_BATCH_EVENT_SIGNATURE, caller(), shr(96, from_), shr(96, to_))
}
}
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(from, to, ids, amounts, data);
}
if (_hasCode(to)) _checkOnERC1155BatchReceived(from, to, ids, amounts, data);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* HOOKS FOR OVERRIDING */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Override this function to return true if `_beforeTokenTransfer` is used.
/// The is to help the compiler avoid producing dead bytecode.
function _useBeforeTokenTransfer() internal view virtual returns (bool) {
return false;
}
/// @dev Hook that is called before any token transfer.
/// This includes minting and burning, as well as batched variants.
///
/// The same hook is called on both single and batched variants.
/// For single transfers, the length of the `id` and `amount` arrays are 1.
function _beforeTokenTransfer(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {}
/// @dev Override this function to return true if `_afterTokenTransfer` is used.
/// The is to help the compiler avoid producing dead bytecode.
function _useAfterTokenTransfer() internal view virtual returns (bool) {
return false;
}
/// @dev Hook that is called after any token transfer.
/// This includes minting and burning, as well as batched variants.
///
/// The same hook is called on both single and batched variants.
/// For single transfers, the length of the `id` and `amount` arrays are 1.
function _afterTokenTransfer(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal virtual {}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PRIVATE HELPERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Helper for calling the `_afterTokenTransfer` hook.
/// The is to help the compiler avoid producing dead bytecode.
function _afterTokenTransferCalldata(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) private {
if (_useAfterTokenTransfer()) {
_afterTokenTransfer(from, to, ids, amounts, data);
}
}
/// @dev Returns if `a` has bytecode of non-zero length.
function _hasCode(address a) private view returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
result := extcodesize(a) // Can handle dirty upper bits.
}
}
/// @dev Perform a call to invoke {IERC1155Receiver-onERC1155Received} on `to`.
/// Reverts if the target does not support the function correctly.
function _checkOnERC1155Received(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
) private {
/// @solidity memory-safe-assembly
assembly {
// Prepare the calldata.
let m := mload(0x40)
// `onERC1155Received(address,address,uint256,uint256,bytes)`.
mstore(m, 0xf23a6e61)
mstore(add(m, 0x20), caller())
mstore(add(m, 0x40), shr(96, shl(96, from)))
mstore(add(m, 0x60), id)
mstore(add(m, 0x80), amount)
mstore(add(m, 0xa0), 0xa0)
let n := mload(data)
mstore(add(m, 0xc0), n)
if n { pop(staticcall(gas(), 4, add(data, 0x20), n, add(m, 0xe0), n)) }
// Revert if the call reverts.
if iszero(call(gas(), to, 0, add(m, 0x1c), add(0xc4, n), m, 0x20)) {
if returndatasize() {
// Bubble up the revert if the call reverts.
returndatacopy(0x00, 0x00, returndatasize())
revert(0x00, returndatasize())
}
mstore(m, 0)
}
// Load the returndata and compare it with the function selector.
if iszero(eq(mload(m), shl(224, 0xf23a6e61))) {
mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Perform a call to invoke {IERC1155Receiver-onERC1155BatchReceived} on `to`.
/// Reverts if the target does not support the function correctly.
function _checkOnERC1155BatchReceived(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) private {
/// @solidity memory-safe-assembly
assembly {
// Prepare the calldata.
let m := mload(0x40)
// `onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)`.
mstore(m, 0xbc197c81)
mstore(add(m, 0x20), caller())
mstore(add(m, 0x40), shr(96, shl(96, from)))
// Copy the `ids`.
mstore(add(m, 0x60), 0xa0)
let n := add(0x20, shl(5, mload(ids)))
let o := add(m, 0xc0)
pop(staticcall(gas(), 4, ids, n, o, n))
// Copy the `amounts`.
let s := add(0xa0, returndatasize())
mstore(add(m, 0x80), s)
o := add(o, returndatasize())
n := add(0x20, shl(5, mload(amounts)))
pop(staticcall(gas(), 4, amounts, n, o, n))
// Copy the `data`.
mstore(add(m, 0xa0), add(s, returndatasize()))
o := add(o, returndatasize())
n := add(0x20, mload(data))
pop(staticcall(gas(), 4, data, n, o, n))
n := sub(add(o, returndatasize()), add(m, 0x1c))
// Revert if the call reverts.
if iszero(call(gas(), to, 0, add(m, 0x1c), n, m, 0x20)) {
if returndatasize() {
// Bubble up the revert if the call reverts.
returndatacopy(0x00, 0x00, returndatasize())
revert(0x00, returndatasize())
}
mstore(m, 0)
}
// Load the returndata and compare it with the function selector.
if iszero(eq(mload(m), shl(224, 0xbc197c81))) {
mstore(0x00, 0x9c05499b) // `TransferToNonERC1155ReceiverImplementer()`.
revert(0x1c, 0x04)
}
}
}
/// @dev Returns `x` in an array with a single element.
function _single(uint256 x) private pure returns (uint256[] memory result) {
assembly {
result := mload(0x40)
mstore(0x40, add(result, 0x40))
mstore(result, 1)
mstore(add(result, 0x20), x)
}
}
}
// File: lib/seaport/lib/seaport-types/src/lib/ConsiderationStructs.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {
BasicOrderType,
ItemType,
OrderType,
Side
} from "./ConsiderationEnums.sol";
import {
CalldataPointer,
MemoryPointer
} from "../helpers/PointerLibraries.sol";
/**
* @dev An order contains eleven components: an offerer, a zone (or account that
* can cancel the order or restrict who can fulfill the order depending on
* the type), the order type (specifying partial fill support as well as
* restricted order status), the start and end time, a hash that will be
* provided to the zone when validating restricted orders, a salt, a key
* corresponding to a given conduit, a counter, and an arbitrary number of
* offer items that can be spent along with consideration items that must
* be received by their respective recipient.
*/
struct OrderComponents {
address offerer;
address zone;
OfferItem[] offer;
ConsiderationItem[] consideration;
OrderType orderType;
uint256 startTime;
uint256 endTime;
bytes32 zoneHash;
uint256 salt;
bytes32 conduitKey;
uint256 counter;
}
/**
* @dev An offer item has five components: an item type (ETH or other native
* tokens, ERC20, ERC721, and ERC1155, as well as criteria-based ERC721 and
* ERC1155), a token address, a dual-purpose "identifierOrCriteria"
* component that will either represent a tokenId or a merkle root
* depending on the item type, and a start and end amount that support
* increasing or decreasing amounts over the duration of the respective
* order.
*/
struct OfferItem {
ItemType itemType;
address token;
uint256 identifierOrCriteria;
uint256 startAmount;
uint256 endAmount;
}
/**
* @dev A consideration item has the same five components as an offer item and
* an additional sixth component designating the required recipient of the
* item.
*/
struct ConsiderationItem {
ItemType itemType;
address token;
uint256 identifierOrCriteria;
uint256 startAmount;
uint256 endAmount;
address payable recipient;
}
/**
* @dev A spent item is translated from a utilized offer item and has four
* components: an item type (ETH or other native tokens, ERC20, ERC721, and
* ERC1155), a token address, a tokenId, and an amount.
*/
struct SpentItem {
ItemType itemType;
address token;
uint256 identifier;
uint256 amount;
}
/**
* @dev A received item is translated from a utilized consideration item and has
* the same four components as a spent item, as well as an additional fifth
* component designating the required recipient of the item.
*/
struct ReceivedItem {
ItemType itemType;
address token;
uint256 identifier;
uint256 amount;
address payable recipient;
}
/**
* @dev For basic orders involving ETH / native / ERC20 <=> ERC721 / ERC1155
* matching, a group of six functions may be called that only requires a
* subset of the usual order arguments. Note the use of a "basicOrderType"
* enum; this represents both the usual order type as well as the "route"
* of the basic order (a simple derivation function for the basic order
* type is `basicOrderType = orderType + (4 * basicOrderRoute)`.)
*/
struct BasicOrderParameters {
// calldata offset
address considerationToken; // 0x24
uint256 considerationIdentifier; // 0x44
uint256 considerationAmount; // 0x64
address payable offerer; // 0x84
address zone; // 0xa4
address offerToken; // 0xc4
uint256 offerIdentifier; // 0xe4
uint256 offerAmount; // 0x104
BasicOrderType basicOrderType; // 0x124
uint256 startTime; // 0x144
uint256 endTime; // 0x164
bytes32 zoneHash; // 0x184
uint256 salt; // 0x1a4
bytes32 offererConduitKey; // 0x1c4
bytes32 fulfillerConduitKey; // 0x1e4
uint256 totalOriginalAdditionalRecipients; // 0x204
AdditionalRecipient[] additionalRecipients; // 0x224
bytes signature; // 0x244
// Total length, excluding dynamic array data: 0x264 (580)
}
/**
* @dev Basic orders can supply any number of additional recipients, with the
* implied assumption that they are supplied from the offered ETH (or other
* native token) or ERC20 token for the order.
*/
struct AdditionalRecipient {
uint256 amount;
address payable recipient;
}
/**
* @dev The full set of order components, with the exception of the counter,
* must be supplied when fulfilling more sophisticated orders or groups of
* orders. The total number of original consideration items must also be
* supplied, as the caller may specify additional consideration items.
*/
struct OrderParameters {
address offerer; // 0x00
address zone; // 0x20
OfferItem[] offer; // 0x40
ConsiderationItem[] consideration; // 0x60
OrderType orderType; // 0x80
uint256 startTime; // 0xa0
uint256 endTime; // 0xc0
bytes32 zoneHash; // 0xe0
uint256 salt; // 0x100
bytes32 conduitKey; // 0x120
uint256 totalOriginalConsiderationItems; // 0x140
// offer.length // 0x160
}
/**
* @dev Orders require a signature in addition to the other order parameters.
*/
struct Order {
OrderParameters parameters;
bytes signature;
}
/**
* @dev Advanced orders include a numerator (i.e. a fraction to attempt to fill)
* and a denominator (the total size of the order) in addition to the
* signature and other order parameters. It also supports an optional field
* for supplying extra data; this data will be provided to the zone if the
* order type is restricted and the zone is not the caller, or will be
* provided to the offerer as context for contract order types.
*/
struct AdvancedOrder {
OrderParameters parameters;
uint120 numerator;
uint120 denominator;
bytes signature;
bytes extraData;
}
/**
* @dev Orders can be validated (either explicitly via `validate`, or as a
* consequence of a full or partial fill), specifically cancelled (they can
* also be cancelled in bulk via incrementing a per-zone counter), and
* partially or fully filled (with the fraction filled represented by a
* numerator and denominator).
*/
struct OrderStatus {
bool isValidated;
bool isCancelled;
uint120 numerator;
uint120 denominator;
}
/**
* @dev A criteria resolver specifies an order, side (offer vs. consideration),
* and item index. It then provides a chosen identifier (i.e. tokenId)
* alongside a merkle proof demonstrating the identifier meets the required
* criteria.
*/
struct CriteriaResolver {
uint256 orderIndex;
Side side;
uint256 index;
uint256 identifier;
bytes32[] criteriaProof;
}
/**
* @dev A fulfillment is applied to a group of orders. It decrements a series of
* offer and consideration items, then generates a single execution
* element. A given fulfillment can be applied to as many offer and
* consideration items as desired, but must contain at least one offer and
* at least one consideration that match. The fulfillment must also remain
* consistent on all key parameters across all offer items (same offerer,
* token, type, tokenId, and conduit preference) as well as across all
* consideration items (token, type, tokenId, and recipient).
*/
struct Fulfillment {
FulfillmentComponent[] offerComponents;
FulfillmentComponent[] considerationComponents;
}
/**
* @dev Each fulfillment component contains one index referencing a specific
* order and another referencing a specific offer or consideration item.
*/
struct FulfillmentComponent {
uint256 orderIndex;
uint256 itemIndex;
}
/**
* @dev An execution is triggered once all consideration items have been zeroed
* out. It sends the item in question from the offerer to the item's
* recipient, optionally sourcing approvals from either this contract
* directly or from the offerer's chosen conduit if one is specified. An
* execution is not provided as an argument, but rather is derived via
* orders, criteria resolvers, and fulfillments (where the total number of
* executions will be less than or equal to the total number of indicated
* fulfillments) and returned as part of `matchOrders`.
*/
struct Execution {
ReceivedItem item;
address offerer;
bytes32 conduitKey;
}
/**
* @dev Restricted orders are validated post-execution by calling validateOrder
* on the zone. This struct provides context about the order fulfillment
* and any supplied extraData, as well as all order hashes fulfilled in a
* call to a match or fulfillAvailable method.
*/
struct ZoneParameters {
bytes32 orderHash;
address fulfiller;
address offerer;
SpentItem[] offer;
ReceivedItem[] consideration;
bytes extraData;
bytes32[] orderHashes;
uint256 startTime;
uint256 endTime;
bytes32 zoneHash;
}
/**
* @dev Zones and contract offerers can communicate which schemas they implement
* along with any associated metadata related to each schema.
*/
struct Schema {
uint256 id;
bytes metadata;
}
using StructPointers for OrderComponents global;
using StructPointers for OfferItem global;
using StructPointers for ConsiderationItem global;
using StructPointers for SpentItem global;
using StructPointers for ReceivedItem global;
using StructPointers for BasicOrderParameters global;
using StructPointers for AdditionalRecipient global;
using StructPointers for OrderParameters global;
using StructPointers for Order global;
using StructPointers for AdvancedOrder global;
using StructPointers for OrderStatus global;
using StructPointers for CriteriaResolver global;
using StructPointers for Fulfillment global;
using StructPointers for FulfillmentComponent global;
using StructPointers for Execution global;
using StructPointers for ZoneParameters global;
/**
* @dev This library provides a set of functions for converting structs to
* pointers.
*/
library StructPointers {
/**
* @dev Get a MemoryPointer from OrderComponents.
*
* @param obj The OrderComponents object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
OrderComponents memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from OrderComponents.
*
* @param obj The OrderComponents object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
OrderComponents calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from OfferItem.
*
* @param obj The OfferItem object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
OfferItem memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from OfferItem.
*
* @param obj The OfferItem object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
OfferItem calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from ConsiderationItem.
*
* @param obj The ConsiderationItem object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
ConsiderationItem memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from ConsiderationItem.
*
* @param obj The ConsiderationItem object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
ConsiderationItem calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from SpentItem.
*
* @param obj The SpentItem object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
SpentItem memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from SpentItem.
*
* @param obj The SpentItem object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
SpentItem calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from ReceivedItem.
*
* @param obj The ReceivedItem object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
ReceivedItem memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from ReceivedItem.
*
* @param obj The ReceivedItem object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
ReceivedItem calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from BasicOrderParameters.
*
* @param obj The BasicOrderParameters object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
BasicOrderParameters memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from BasicOrderParameters.
*
* @param obj The BasicOrderParameters object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
BasicOrderParameters calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from AdditionalRecipient.
*
* @param obj The AdditionalRecipient object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
AdditionalRecipient memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from AdditionalRecipient.
*
* @param obj The AdditionalRecipient object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
AdditionalRecipient calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from OrderParameters.
*
* @param obj The OrderParameters object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
OrderParameters memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from OrderParameters.
*
* @param obj The OrderParameters object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
OrderParameters calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from Order.
*
* @param obj The Order object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
Order memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from Order.
*
* @param obj The Order object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
Order calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from AdvancedOrder.
*
* @param obj The AdvancedOrder object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
AdvancedOrder memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from AdvancedOrder.
*
* @param obj The AdvancedOrder object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
AdvancedOrder calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from OrderStatus.
*
* @param obj The OrderStatus object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
OrderStatus memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from OrderStatus.
*
* @param obj The OrderStatus object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
OrderStatus calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from CriteriaResolver.
*
* @param obj The CriteriaResolver object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
CriteriaResolver memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from CriteriaResolver.
*
* @param obj The CriteriaResolver object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
CriteriaResolver calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from Fulfillment.
*
* @param obj The Fulfillment object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
Fulfillment memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from Fulfillment.
*
* @param obj The Fulfillment object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
Fulfillment calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from FulfillmentComponent.
*
* @param obj The FulfillmentComponent object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
FulfillmentComponent memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from FulfillmentComponent.
*
* @param obj The FulfillmentComponent object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
FulfillmentComponent calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from Execution.
*
* @param obj The Execution object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
Execution memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from Execution.
*
* @param obj The Execution object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
Execution calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a MemoryPointer from ZoneParameters.
*
* @param obj The ZoneParameters object.
*
* @return ptr The MemoryPointer.
*/
function toMemoryPointer(
ZoneParameters memory obj
) internal pure returns (MemoryPointer ptr) {
assembly {
ptr := obj
}
}
/**
* @dev Get a CalldataPointer from ZoneParameters.
*
* @param obj The ZoneParameters object.
*
* @return ptr The CalldataPointer.
*/
function toCalldataPointer(
ZoneParameters calldata obj
) internal pure returns (CalldataPointer ptr) {
assembly {
ptr := obj
}
}
}
// File: lib/seaport/lib/seaport-types/src/interfaces/ContractOffererInterface.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {ReceivedItem, Schema, SpentItem} from "../lib/ConsiderationStructs.sol";
import {IERC165} from "../interfaces/IERC165.sol";
/**
* @title ContractOffererInterface
* @notice Contains the minimum interfaces needed to interact with a contract
* offerer.
*/
interface ContractOffererInterface is IERC165 {
/**
* @dev Generates an order with the specified minimum and maximum spent
* items, and optional context (supplied as extraData).
*
* @param fulfiller The address of the fulfiller.
* @param minimumReceived The minimum items that the caller is willing to
* receive.
* @param maximumSpent The maximum items the caller is willing to spend.
* @param context Additional context of the order.
*
* @return offer A tuple containing the offer items.
* @return consideration A tuple containing the consideration items.
*/
function generateOrder(
address fulfiller,
SpentItem[] calldata minimumReceived,
SpentItem[] calldata maximumSpent,
bytes calldata context // encoded based on the schemaID
) external returns (SpentItem[] memory offer, ReceivedItem[] memory consideration);
/**
* @dev Ratifies an order with the specified offer, consideration, and
* optional context (supplied as extraData).
*
* @param offer The offer items.
* @param consideration The consideration items.
* @param context Additional context of the order.
* @param orderHashes The hashes to ratify.
* @param contractNonce The nonce of the contract.
*
* @return ratifyOrderMagicValue The magic value returned by the contract
* offerer.
*/
function ratifyOrder(
SpentItem[] calldata offer,
ReceivedItem[] calldata consideration,
bytes calldata context, // encoded based on the schemaID
bytes32[] calldata orderHashes,
uint256 contractNonce
) external returns (bytes4 ratifyOrderMagicValue);
/**
* @dev View function to preview an order generated in response to a minimum
* set of received items, maximum set of spent items, and context
* (supplied as extraData).
*
* @param caller The address of the caller (e.g. Seaport).
* @param fulfiller The address of the fulfiller (e.g. the account
* calling Seaport).
* @param minimumReceived The minimum items that the caller is willing to
* receive.
* @param maximumSpent The maximum items the caller is willing to spend.
* @param context Additional context of the order.
*
* @return offer A tuple containing the offer items.
* @return consideration A tuple containing the consideration items.
*/
function previewOrder(
address caller,
address fulfiller,
SpentItem[] calldata minimumReceived,
SpentItem[] calldata maximumSpent,
bytes calldata context // encoded based on the schemaID
) external view returns (SpentItem[] memory offer, ReceivedItem[] memory consideration);
/**
* @dev Gets the metadata for this contract offerer.
*
* @return name The name of the contract offerer.
* @return schemas The schemas supported by the contract offerer.
*/
function getSeaportMetadata() external view returns (string memory name, Schema[] memory schemas); // map to Seaport Improvement Proposal IDs
function supportsInterface(bytes4 interfaceId) external view override returns (bool);
// Additional functions and/or events based on implemented schemaIDs
}
// File: lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.19;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: src/interfaces/ISeaDropTokenContractMetadata.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
interface ISeaDropTokenContractMetadata {
/**
* @dev Emit an event for token metadata reveals/updates,
* according to EIP-4906.
*
* @param _fromTokenId The start token id.
* @param _toTokenId The end token id.
*/
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
/**
* @dev Emit an event when the URI for the collection-level metadata
* is updated.
*/
event ContractURIUpdated(string newContractURI);
/**
* @dev Emit an event with the previous and new provenance hash after
* being updated.
*/
event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);
/**
* @dev Emit an event when the EIP-2981 royalty info is updated.
*/
event RoyaltyInfoUpdated(address receiver, uint256 basisPoints);
/**
* @notice Throw if the max supply exceeds uint64, a limit
* due to the storage of bit-packed variables.
*/
error CannotExceedMaxSupplyOfUint64(uint256 got);
/**
* @dev Revert with an error when attempting to set the provenance
* hash after the mint has started.
*/
error ProvenanceHashCannotBeSetAfterMintStarted();
/**
* @dev Revert with an error when attempting to set the provenance
* hash after it has already been set.
*/
error ProvenanceHashCannotBeSetAfterAlreadyBeingSet();
/**
* @notice Sets the base URI for the token metadata and emits an event.
*
* @param tokenURI The new base URI to set.
*/
function setBaseURI(string calldata tokenURI) external;
/**
* @notice Sets the contract URI for contract metadata.
*
* @param newContractURI The new contract URI.
*/
function setContractURI(string calldata newContractURI) external;
/**
* @notice Sets the provenance hash and emits an event.
*
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it has not been
* modified after mint started.
*
* This function will revert after the first item has been minted.
*
* @param newProvenanceHash The new provenance hash to set.
*/
function setProvenanceHash(bytes32 newProvenanceHash) external;
/**
* @notice Sets the default royalty information.
*
* Requirements:
*
* - `receiver` cannot be the zero address.
* - `feeNumerator` cannot be greater than the fee denominator of
* 10_000 basis points.
*/
function setDefaultRoyalty(address receiver, uint96 feeNumerator) external;
/**
* @notice Returns the base URI for token metadata.
*/
function baseURI() external view returns (string memory);
/**
* @notice Returns the contract URI.
*/
function contractURI() external view returns (string memory);
/**
* @notice Returns the provenance hash.
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it is unmodified
* after mint has started.
*/
function provenanceHash() external view returns (bytes32);
}
// File: src/interfaces/IERC1155ContractMetadata.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import {
ISeaDropTokenContractMetadata
} from "./ISeaDropTokenContractMetadata.sol";
interface IERC1155ContractMetadata is ISeaDropTokenContractMetadata {
/**
* @dev A struct representing the supply info for a token id,
* packed into one storage slot.
*
* @param maxSupply The max supply for the token id.
* @param totalSupply The total token supply for the token id.
* Subtracted when an item is burned.
* @param totalMinted The total number of tokens minted for the token id.
*/
struct TokenSupply {
uint64 maxSupply; // 64/256 bits
uint64 totalSupply; // 128/256 bits
uint64 totalMinted; // 192/256 bits
}
/**
* @dev Emit an event when the max token supply for a token id is updated.
*/
event MaxSupplyUpdated(uint256 tokenId, uint256 newMaxSupply);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply.
*/
error MintExceedsMaxSupply(uint256 total, uint256 maxSupply);
/**
* @notice Sets the max supply for a token id and emits an event.
*
* @param tokenId The token id to set the max supply for.
* @param newMaxSupply The new max supply to set.
*/
function setMaxSupply(uint256 tokenId, uint256 newMaxSupply) external;
/**
* @notice Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @notice Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @notice Returns the max token supply for a token id.
*/
function maxSupply(uint256 tokenId) external view returns (uint256);
/**
* @notice Returns the total supply for a token id.
*/
function totalSupply(uint256 tokenId) external view returns (uint256);
/**
* @notice Returns the total minted for a token id.
*/
function totalMinted(uint256 tokenId) external view returns (uint256);
}
// File: lib/solady/src/tokens/ERC2981.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple ERC2981 NFT Royalty Standard implementation.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/tokens/ERC2981.sol)
/// @author Modified from OpenZeppelin (https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/common/ERC2981.sol)
abstract contract ERC2981 {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The royalty fee numerator exceeds the fee denominator.
error RoyaltyOverflow();
/// @dev The royalty receiver cannot be the zero address.
error RoyaltyReceiverIsZeroAddress();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The default royalty info is given by:
/// ```
/// let packed := sload(_ERC2981_MASTER_SLOT_SEED)
/// let receiver := shr(96, packed)
/// let royaltyFraction := xor(packed, shl(96, receiver))
/// ```
///
/// The per token royalty info is given by.
/// ```
/// mstore(0x00, tokenId)
/// mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
/// let packed := sload(keccak256(0x00, 0x40))
/// let receiver := shr(96, packed)
/// let royaltyFraction := xor(packed, shl(96, receiver))
/// ```
uint256 private constant _ERC2981_MASTER_SLOT_SEED = 0xaa4ec00224afccfdb7;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* ERC2981 */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Checks that `_feeDenominator` is non-zero.
constructor() {
require(_feeDenominator() != 0, "Fee denominator cannot be zero.");
}
/// @dev Returns the denominator for the royalty amount.
/// Defaults to 10000, which represents fees in basis points.
/// Override this function to return a custom amount if needed.
function _feeDenominator() internal pure virtual returns (uint96) {
return 10000;
}
/// @dev Returns true if this contract implements the interface defined by `interfaceId`.
/// See: https://eips.ethereum.org/EIPS/eip-165
/// This function call must use less than 30000 gas.
function supportsInterface(bytes4 interfaceId) public view virtual returns (bool result) {
/// @solidity memory-safe-assembly
assembly {
let s := shr(224, interfaceId)
// ERC165: 0x01ffc9a7, ERC2981: 0x2a55205a.
result := or(eq(s, 0x01ffc9a7), eq(s, 0x2a55205a))
}
}
/// @dev Returns the `receiver` and `royaltyAmount` for `tokenId` sold at `salePrice`.
function royaltyInfo(uint256 tokenId, uint256 salePrice)
public
view
virtual
returns (address receiver, uint256 royaltyAmount)
{
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
let packed := sload(keccak256(0x00, 0x40))
receiver := shr(96, packed)
if iszero(receiver) {
packed := sload(mload(0x20))
receiver := shr(96, packed)
}
let x := salePrice
let y := xor(packed, shl(96, receiver)) // `feeNumerator`.
// Overflow check, equivalent to `require(y == 0 || x <= type(uint256).max / y)`.
// Out-of-gas revert. Should not be triggered in practice, but included for safety.
returndatacopy(returndatasize(), returndatasize(), mul(y, gt(x, div(not(0), y))))
royaltyAmount := div(mul(x, y), feeDenominator)
}
}
/// @dev Sets the default royalty `receiver` and `feeNumerator`.
///
/// Requirements:
/// - `receiver` must not be the zero address.
/// - `feeNumerator` must not be greater than the fee denominator.
function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
feeNumerator := shr(160, shl(160, feeNumerator))
if gt(feeNumerator, feeDenominator) {
mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.
revert(0x1c, 0x04)
}
let packed := shl(96, receiver)
if iszero(packed) {
mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.
revert(0x1c, 0x04)
}
sstore(_ERC2981_MASTER_SLOT_SEED, or(packed, feeNumerator))
}
}
/// @dev Sets the default royalty `receiver` and `feeNumerator` to zero.
function _deleteDefaultRoyalty() internal virtual {
/// @solidity memory-safe-assembly
assembly {
sstore(_ERC2981_MASTER_SLOT_SEED, 0)
}
}
/// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId`.
///
/// Requirements:
/// - `receiver` must not be the zero address.
/// - `feeNumerator` must not be greater than the fee denominator.
function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator)
internal
virtual
{
uint256 feeDenominator = _feeDenominator();
/// @solidity memory-safe-assembly
assembly {
feeNumerator := shr(160, shl(160, feeNumerator))
if gt(feeNumerator, feeDenominator) {
mstore(0x00, 0x350a88b3) // `RoyaltyOverflow()`.
revert(0x1c, 0x04)
}
let packed := shl(96, receiver)
if iszero(packed) {
mstore(0x00, 0xb4457eaa) // `RoyaltyReceiverIsZeroAddress()`.
revert(0x1c, 0x04)
}
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
sstore(keccak256(0x00, 0x40), or(packed, feeNumerator))
}
}
/// @dev Sets the royalty `receiver` and `feeNumerator` for `tokenId` to zero.
function _resetTokenRoyalty(uint256 tokenId) internal virtual {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, tokenId)
mstore(0x20, _ERC2981_MASTER_SLOT_SEED)
sstore(keccak256(0x00, 0x40), 0)
}
}
}
// File: lib/solady/src/auth/Ownable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
/// @notice Simple single owner authorization mixin.
/// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/Ownable.sol)
/// @dev While the ownable portion follows
/// [EIP-173](https://eips.ethereum.org/EIPS/eip-173) for compatibility,
/// the nomenclature for the 2-step ownership handover may be unique to this codebase.
abstract contract Ownable {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* CUSTOM ERRORS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The caller is not authorized to call the function.
error Unauthorized();
/// @dev The `newOwner` cannot be the zero address.
error NewOwnerIsZeroAddress();
/// @dev The `pendingOwner` does not have a valid handover request.
error NoHandoverRequest();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* EVENTS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The ownership is transferred from `oldOwner` to `newOwner`.
/// This event is intentionally kept the same as OpenZeppelin's Ownable to be
/// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173),
/// despite it not being as lightweight as a single argument event.
event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);
/// @dev An ownership handover to `pendingOwner` has been requested.
event OwnershipHandoverRequested(address indexed pendingOwner);
/// @dev The ownership handover to `pendingOwner` has been canceled.
event OwnershipHandoverCanceled(address indexed pendingOwner);
/// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`.
uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE =
0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0;
/// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`.
uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE =
0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d;
/// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`.
uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE =
0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* STORAGE */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev The owner slot is given by: `not(_OWNER_SLOT_NOT)`.
/// It is intentionally chosen to be a high value
/// to avoid collision with lower slots.
/// The choice of manual storage layout is to enable compatibility
/// with both regular and upgradeable contracts.
uint256 private constant _OWNER_SLOT_NOT = 0x8b78c6d8;
/// The ownership handover slot of `newOwner` is given by:
/// ```
/// mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED))
/// let handoverSlot := keccak256(0x00, 0x20)
/// ```
/// It stores the expiry timestamp of the two-step ownership handover.
uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1;
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* INTERNAL FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Initializes the owner directly without authorization guard.
/// This function must be called upon initialization,
/// regardless of whether the contract is upgradeable or not.
/// This is to enable generalization to both regular and upgradeable contracts,
/// and to save gas in case the initial owner is not the caller.
/// For performance reasons, this function will not check if there
/// is an existing owner.
function _initializeOwner(address newOwner) internal virtual {
/// @solidity memory-safe-assembly
assembly {
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Store the new value.
sstore(not(_OWNER_SLOT_NOT), newOwner)
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner)
}
}
/// @dev Sets the owner directly without authorization guard.
function _setOwner(address newOwner) internal virtual {
/// @solidity memory-safe-assembly
assembly {
let ownerSlot := not(_OWNER_SLOT_NOT)
// Clean the upper 96 bits.
newOwner := shr(96, shl(96, newOwner))
// Emit the {OwnershipTransferred} event.
log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner)
// Store the new value.
sstore(ownerSlot, newOwner)
}
}
/// @dev Throws if the sender is not the owner.
function _checkOwner() internal view virtual {
/// @solidity memory-safe-assembly
assembly {
// If the caller is not the stored owner, revert.
if iszero(eq(caller(), sload(not(_OWNER_SLOT_NOT)))) {
mstore(0x00, 0x82b42900) // `Unauthorized()`.
revert(0x1c, 0x04)
}
}
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC UPDATE FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Allows the owner to transfer the ownership to `newOwner`.
function transferOwnership(address newOwner) public payable virtual onlyOwner {
/// @solidity memory-safe-assembly
assembly {
if iszero(shl(96, newOwner)) {
mstore(0x00, 0x7448fbae) // `NewOwnerIsZeroAddress()`.
revert(0x1c, 0x04)
}
}
_setOwner(newOwner);
}
/// @dev Allows the owner to renounce their ownership.
function renounceOwnership() public payable virtual onlyOwner {
_setOwner(address(0));
}
/// @dev Request a two-step ownership handover to the caller.
/// The request will automatically expire in 48 hours (172800 seconds) by default.
function requestOwnershipHandover() public payable virtual {
unchecked {
uint256 expires = block.timestamp + ownershipHandoverValidFor();
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to `expires`.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x20), expires)
// Emit the {OwnershipHandoverRequested} event.
log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller())
}
}
}
/// @dev Cancels the two-step ownership handover to the caller, if any.
function cancelOwnershipHandover() public payable virtual {
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to 0.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, caller())
sstore(keccak256(0x0c, 0x20), 0)
// Emit the {OwnershipHandoverCanceled} event.
log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller())
}
}
/// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`.
/// Reverts if there is no existing ownership handover requested by `pendingOwner`.
function completeOwnershipHandover(address pendingOwner) public payable virtual onlyOwner {
/// @solidity memory-safe-assembly
assembly {
// Compute and set the handover slot to 0.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, pendingOwner)
let handoverSlot := keccak256(0x0c, 0x20)
// If the handover does not exist, or has expired.
if gt(timestamp(), sload(handoverSlot)) {
mstore(0x00, 0x6f5e8818) // `NoHandoverRequest()`.
revert(0x1c, 0x04)
}
// Set the handover slot to 0.
sstore(handoverSlot, 0)
}
_setOwner(pendingOwner);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* PUBLIC READ FUNCTIONS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Returns the owner of the contract.
function owner() public view virtual returns (address result) {
/// @solidity memory-safe-assembly
assembly {
result := sload(not(_OWNER_SLOT_NOT))
}
}
/// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`.
function ownershipHandoverExpiresAt(address pendingOwner)
public
view
virtual
returns (uint256 result)
{
/// @solidity memory-safe-assembly
assembly {
// Compute the handover slot.
mstore(0x0c, _HANDOVER_SLOT_SEED)
mstore(0x00, pendingOwner)
// Load the handover slot.
result := sload(keccak256(0x0c, 0x20))
}
}
/// @dev Returns how long a two-step ownership handover is valid for in seconds.
function ownershipHandoverValidFor() public view virtual returns (uint64) {
return 48 * 3600;
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* MODIFIERS */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/// @dev Marks a function as only callable by the owner.
modifier onlyOwner() virtual {
_checkOwner();
_;
}
}
// File: lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.19;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (address(this).code.length == 0 && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// File: src/lib/SeaDropErrorsAndEvents.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { CreatorPayout, PublicDrop } from "./ERC721SeaDropStructs.sol";
interface SeaDropErrorsAndEvents {
/**
* @notice The SeaDrop token types, emitted as part of
* `event SeaDropTokenDeployed`.
*/
enum SEADROP_TOKEN_TYPE {
ERC721_STANDARD,
ERC721_CLONE,
ERC721_UPGRADEABLE,
ERC1155_STANDARD,
ERC1155_CLONE,
ERC1155_UPGRADEABLE
}
/**
* @notice An event to signify that a SeaDrop token contract was deployed.
*/
event SeaDropTokenDeployed(SEADROP_TOKEN_TYPE tokenType);
/**
* @notice Revert with an error if the function selector is not supported.
*/
error UnsupportedFunctionSelector(bytes4 selector);
/**
* @dev Revert with an error if the drop stage is not active.
*/
error NotActive(
uint256 currentTimestamp,
uint256 startTimestamp,
uint256 endTimestamp
);
/**
* @dev Revert with an error if the mint quantity exceeds the max allowed
* to be minted per wallet.
*/
error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply.
*/
error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply for the stage.
* Note: The `maxTokenSupplyForStage` for public mint is
* always `type(uint).max`.
*/
error MintQuantityExceedsMaxTokenSupplyForStage(
uint256 total,
uint256 maxTokenSupplyForStage
);
/**
* @dev Revert if the fee recipient is the zero address.
*/
error FeeRecipientCannotBeZeroAddress();
/**
* @dev Revert if the fee recipient is not already included.
*/
error FeeRecipientNotPresent();
/**
* @dev Revert if the fee basis points is greater than 10_000.
*/
error InvalidFeeBps(uint256 feeBps);
/**
* @dev Revert if the fee recipient is already included.
*/
error DuplicateFeeRecipient();
/**
* @dev Revert if the fee recipient is restricted and not allowed.
*/
error FeeRecipientNotAllowed(address got);
/**
* @dev Revert if the creator payout address is the zero address.
*/
error CreatorPayoutAddressCannotBeZeroAddress();
/**
* @dev Revert if the creator payouts are not set.
*/
error CreatorPayoutsNotSet();
/**
* @dev Revert if the creator payout basis points are zero.
*/
error CreatorPayoutBasisPointsCannotBeZero();
/**
* @dev Revert if the total basis points for the creator payouts
* don't equal exactly 10_000.
*/
error InvalidCreatorPayoutTotalBasisPoints(
uint256 totalReceivedBasisPoints
);
/**
* @dev Revert if the creator payout basis points don't add up to 10_000.
*/
error InvalidCreatorPayoutBasisPoints(uint256 totalReceivedBasisPoints);
/**
* @dev Revert with an error if the allow list proof is invalid.
*/
error InvalidProof();
/**
* @dev Revert if a supplied signer address is the zero address.
*/
error SignerCannotBeZeroAddress();
/**
* @dev Revert with an error if a signer is not included in
* the enumeration when removing.
*/
error SignerNotPresent();
/**
* @dev Revert with an error if a payer is not included in
* the enumeration when removing.
*/
error PayerNotPresent();
/**
* @dev Revert with an error if a payer is already included in mapping
* when adding.
*/
error DuplicatePayer();
/**
* @dev Revert with an error if a signer is already included in mapping
* when adding.
*/
error DuplicateSigner();
/**
* @dev Revert with an error if the payer is not allowed. The minter must
* pay for their own mint.
*/
error PayerNotAllowed(address got);
/**
* @dev Revert if a supplied payer address is the zero address.
*/
error PayerCannotBeZeroAddress();
/**
* @dev Revert if the start time is greater than the end time.
*/
error InvalidStartAndEndTime(uint256 startTime, uint256 endTime);
/**
* @dev Revert with an error if the signer payment token is not the same.
*/
error InvalidSignedPaymentToken(address got, address want);
/**
* @dev Revert with an error if supplied signed mint price is less than
* the minimum specified.
*/
error InvalidSignedMintPrice(
address paymentToken,
uint256 got,
uint256 minimum
);
/**
* @dev Revert with an error if supplied signed maxTotalMintableByWallet
* is greater than the maximum specified.
*/
error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed
* maxTotalMintableByWalletPerToken is greater than the maximum
* specified.
*/
error InvalidSignedMaxTotalMintableByWalletPerToken(
uint256 got,
uint256 maximum
);
/**
* @dev Revert with an error if the fromTokenId is not within range.
*/
error InvalidSignedFromTokenId(uint256 got, uint256 minimum);
/**
* @dev Revert with an error if the toTokenId is not within range.
*/
error InvalidSignedToTokenId(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed start time is less than
* the minimum specified.
*/
error InvalidSignedStartTime(uint256 got, uint256 minimum);
/**
* @dev Revert with an error if supplied signed end time is greater than
* the maximum specified.
*/
error InvalidSignedEndTime(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed maxTokenSupplyForStage
* is greater than the maximum specified.
*/
error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed feeBps is greater than
* the maximum specified, or less than the minimum.
*/
error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);
/**
* @dev Revert with an error if signed mint did not specify to restrict
* fee recipients.
*/
error SignedMintsMustRestrictFeeRecipients();
/**
* @dev Revert with an error if a signature for a signed mint has already
* been used.
*/
error SignatureAlreadyUsed();
/**
* @dev Revert with an error if the contract has no balance to withdraw.
*/
error NoBalanceToWithdraw();
/**
* @dev Revert with an error if the caller is not an allowed Seaport.
*/
error InvalidCallerOnlyAllowedSeaport(address caller);
/**
* @dev Revert with an error if the order does not have the ERC1155 magic
* consideration item to signify a consecutive mint.
*/
error MustSpecifyERC1155ConsiderationItemForSeaDropMint();
/**
* @dev Revert with an error if the extra data version is not supported.
*/
error UnsupportedExtraDataVersion(uint8 version);
/**
* @dev Revert with an error if the extra data encoding is not supported.
*/
error InvalidExtraDataEncoding(uint8 version);
/**
* @dev Revert with an error if the provided substandard is not supported.
*/
error InvalidSubstandard(uint8 substandard);
/**
* @dev Revert with an error if the implementation contract is called without
* delegatecall.
*/
error OnlyDelegateCalled();
/**
* @dev Revert with an error if the provided allowed Seaport is the
* zero address.
*/
error AllowedSeaportCannotBeZeroAddress();
/**
* @dev Emit an event when allowed Seaport contracts are updated.
*/
event AllowedSeaportUpdated(address[] allowedSeaport);
/**
* @dev An event with details of a SeaDrop mint, for analytical purposes.
*
* @param payer The address who payed for the tx.
* @param dropStageIndex The drop stage index. Items minted through
* public mint have dropStageIndex of 0
*/
event SeaDropMint(address payer, uint256 dropStageIndex);
/**
* @dev An event with updated allow list data.
*
* @param previousMerkleRoot The previous allow list merkle root.
* @param newMerkleRoot The new allow list merkle root.
* @param publicKeyURI If the allow list is encrypted, the public key
* URIs that can decrypt the list.
* Empty if unencrypted.
* @param allowListURI The URI for the allow list.
*/
event AllowListUpdated(
bytes32 indexed previousMerkleRoot,
bytes32 indexed newMerkleRoot,
string[] publicKeyURI,
string allowListURI
);
/**
* @dev An event with updated drop URI.
*/
event DropURIUpdated(string newDropURI);
/**
* @dev An event with the updated creator payout address.
*/
event CreatorPayoutsUpdated(CreatorPayout[] creatorPayouts);
/**
* @dev An event with the updated allowed fee recipient.
*/
event AllowedFeeRecipientUpdated(
address indexed feeRecipient,
bool indexed allowed
);
/**
* @dev An event with the updated signer.
*/
event SignerUpdated(address indexed signer, bool indexed allowed);
/**
* @dev An event with the updated payer.
*/
event PayerUpdated(address indexed payer, bool indexed allowed);
}
// File: lib/seaport/lib/seaport-types/src/lib/ConsiderationEnums.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
enum OrderType {
// 0: no partial fills, anyone can execute
FULL_OPEN,
// 1: partial fills supported, anyone can execute
PARTIAL_OPEN,
// 2: no partial fills, only offerer or zone can execute
FULL_RESTRICTED,
// 3: partial fills supported, only offerer or zone can execute
PARTIAL_RESTRICTED,
// 4: contract order type
CONTRACT
}
enum BasicOrderType {
// 0: no partial fills, anyone can execute
ETH_TO_ERC721_FULL_OPEN,
// 1: partial fills supported, anyone can execute
ETH_TO_ERC721_PARTIAL_OPEN,
// 2: no partial fills, only offerer or zone can execute
ETH_TO_ERC721_FULL_RESTRICTED,
// 3: partial fills supported, only offerer or zone can execute
ETH_TO_ERC721_PARTIAL_RESTRICTED,
// 4: no partial fills, anyone can execute
ETH_TO_ERC1155_FULL_OPEN,
// 5: partial fills supported, anyone can execute
ETH_TO_ERC1155_PARTIAL_OPEN,
// 6: no partial fills, only offerer or zone can execute
ETH_TO_ERC1155_FULL_RESTRICTED,
// 7: partial fills supported, only offerer or zone can execute
ETH_TO_ERC1155_PARTIAL_RESTRICTED,
// 8: no partial fills, anyone can execute
ERC20_TO_ERC721_FULL_OPEN,
// 9: partial fills supported, anyone can execute
ERC20_TO_ERC721_PARTIAL_OPEN,
// 10: no partial fills, only offerer or zone can execute
ERC20_TO_ERC721_FULL_RESTRICTED,
// 11: partial fills supported, only offerer or zone can execute
ERC20_TO_ERC721_PARTIAL_RESTRICTED,
// 12: no partial fills, anyone can execute
ERC20_TO_ERC1155_FULL_OPEN,
// 13: partial fills supported, anyone can execute
ERC20_TO_ERC1155_PARTIAL_OPEN,
// 14: no partial fills, only offerer or zone can execute
ERC20_TO_ERC1155_FULL_RESTRICTED,
// 15: partial fills supported, only offerer or zone can execute
ERC20_TO_ERC1155_PARTIAL_RESTRICTED,
// 16: no partial fills, anyone can execute
ERC721_TO_ERC20_FULL_OPEN,
// 17: partial fills supported, anyone can execute
ERC721_TO_ERC20_PARTIAL_OPEN,
// 18: no partial fills, only offerer or zone can execute
ERC721_TO_ERC20_FULL_RESTRICTED,
// 19: partial fills supported, only offerer or zone can execute
ERC721_TO_ERC20_PARTIAL_RESTRICTED,
// 20: no partial fills, anyone can execute
ERC1155_TO_ERC20_FULL_OPEN,
// 21: partial fills supported, anyone can execute
ERC1155_TO_ERC20_PARTIAL_OPEN,
// 22: no partial fills, only offerer or zone can execute
ERC1155_TO_ERC20_FULL_RESTRICTED,
// 23: partial fills supported, only offerer or zone can execute
ERC1155_TO_ERC20_PARTIAL_RESTRICTED
}
enum BasicOrderRouteType {
// 0: provide Ether (or other native token) to receive offered ERC721 item.
ETH_TO_ERC721,
// 1: provide Ether (or other native token) to receive offered ERC1155 item.
ETH_TO_ERC1155,
// 2: provide ERC20 item to receive offered ERC721 item.
ERC20_TO_ERC721,
// 3: provide ERC20 item to receive offered ERC1155 item.
ERC20_TO_ERC1155,
// 4: provide ERC721 item to receive offered ERC20 item.
ERC721_TO_ERC20,
// 5: provide ERC1155 item to receive offered ERC20 item.
ERC1155_TO_ERC20
}
enum ItemType {
// 0: ETH on mainnet, MATIC on polygon, etc.
NATIVE,
// 1: ERC20 items (ERC777 and ERC20 analogues could also technically work)
ERC20,
// 2: ERC721 items
ERC721,
// 3: ERC1155 items
ERC1155,
// 4: ERC721 items where a number of tokenIds are supported
ERC721_WITH_CRITERIA,
// 5: ERC1155 items where a number of ids are supported
ERC1155_WITH_CRITERIA
}
enum Side {
// 0: Items that can be spent
OFFER,
// 1: Items that must be received
CONSIDERATION
}
// File: lib/seaport/lib/seaport-types/src/helpers/PointerLibraries.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
type CalldataPointer is uint256;
type ReturndataPointer is uint256;
type MemoryPointer is uint256;
using CalldataPointerLib for CalldataPointer global;
using MemoryPointerLib for MemoryPointer global;
using ReturndataPointerLib for ReturndataPointer global;
using CalldataReaders for CalldataPointer global;
using ReturndataReaders for ReturndataPointer global;
using MemoryReaders for MemoryPointer global;
using MemoryWriters for MemoryPointer global;
CalldataPointer constant CalldataStart = CalldataPointer.wrap(0x04);
MemoryPointer constant FreeMemoryPPtr = MemoryPointer.wrap(0x40);
uint256 constant IdentityPrecompileAddress = 0x4;
uint256 constant OffsetOrLengthMask = 0xffffffff;
uint256 constant _OneWord = 0x20;
uint256 constant _FreeMemoryPointerSlot = 0x40;
/// @dev Allocates `size` bytes in memory by increasing the free memory pointer
/// and returns the memory pointer to the first byte of the allocated region.
// (Free functions cannot have visibility.)
// solhint-disable-next-line func-visibility
function malloc(uint256 size) pure returns (MemoryPointer mPtr) {
assembly {
mPtr := mload(_FreeMemoryPointerSlot)
mstore(_FreeMemoryPointerSlot, add(mPtr, size))
}
}
// (Free functions cannot have visibility.)
// solhint-disable-next-line func-visibility
function getFreeMemoryPointer() pure returns (MemoryPointer mPtr) {
mPtr = FreeMemoryPPtr.readMemoryPointer();
}
// (Free functions cannot have visibility.)
// solhint-disable-next-line func-visibility
function setFreeMemoryPointer(MemoryPointer mPtr) pure {
FreeMemoryPPtr.write(mPtr);
}
library CalldataPointerLib {
function lt(
CalldataPointer a,
CalldataPointer b
) internal pure returns (bool c) {
assembly {
c := lt(a, b)
}
}
function gt(
CalldataPointer a,
CalldataPointer b
) internal pure returns (bool c) {
assembly {
c := gt(a, b)
}
}
function eq(
CalldataPointer a,
CalldataPointer b
) internal pure returns (bool c) {
assembly {
c := eq(a, b)
}
}
function isNull(CalldataPointer a) internal pure returns (bool b) {
assembly {
b := iszero(a)
}
}
/// @dev Resolves an offset stored at `cdPtr + headOffset` to a calldata.
/// pointer `cdPtr` must point to some parent object with a dynamic
/// type's head stored at `cdPtr + headOffset`.
function pptr(
CalldataPointer cdPtr,
uint256 headOffset
) internal pure returns (CalldataPointer cdPtrChild) {
cdPtrChild = cdPtr.offset(
cdPtr.offset(headOffset).readUint256() & OffsetOrLengthMask
);
}
/// @dev Resolves an offset stored at `cdPtr` to a calldata pointer.
/// `cdPtr` must point to some parent object with a dynamic type as its
/// first member, e.g. `struct { bytes data; }`
function pptr(
CalldataPointer cdPtr
) internal pure returns (CalldataPointer cdPtrChild) {
cdPtrChild = cdPtr.offset(cdPtr.readUint256() & OffsetOrLengthMask);
}
/// @dev Returns the calldata pointer one word after `cdPtr`.
function next(
CalldataPointer cdPtr
) internal pure returns (CalldataPointer cdPtrNext) {
assembly {
cdPtrNext := add(cdPtr, _OneWord)
}
}
/// @dev Returns the calldata pointer `_offset` bytes after `cdPtr`.
function offset(
CalldataPointer cdPtr,
uint256 _offset
) internal pure returns (CalldataPointer cdPtrNext) {
assembly {
cdPtrNext := add(cdPtr, _offset)
}
}
/// @dev Copies `size` bytes from calldata starting at `src` to memory at
/// `dst`.
function copy(
CalldataPointer src,
MemoryPointer dst,
uint256 size
) internal pure {
assembly {
calldatacopy(dst, src, size)
}
}
}
library ReturndataPointerLib {
function lt(
ReturndataPointer a,
ReturndataPointer b
) internal pure returns (bool c) {
assembly {
c := lt(a, b)
}
}
function gt(
ReturndataPointer a,
ReturndataPointer b
) internal pure returns (bool c) {
assembly {
c := gt(a, b)
}
}
function eq(
ReturndataPointer a,
ReturndataPointer b
) internal pure returns (bool c) {
assembly {
c := eq(a, b)
}
}
function isNull(ReturndataPointer a) internal pure returns (bool b) {
assembly {
b := iszero(a)
}
}
/// @dev Resolves an offset stored at `rdPtr + headOffset` to a returndata
/// pointer. `rdPtr` must point to some parent object with a dynamic
/// type's head stored at `rdPtr + headOffset`.
function pptr(
ReturndataPointer rdPtr,
uint256 headOffset
) internal pure returns (ReturndataPointer rdPtrChild) {
rdPtrChild = rdPtr.offset(
rdPtr.offset(headOffset).readUint256() & OffsetOrLengthMask
);
}
/// @dev Resolves an offset stored at `rdPtr` to a returndata pointer.
/// `rdPtr` must point to some parent object with a dynamic type as its
/// first member, e.g. `struct { bytes data; }`
function pptr(
ReturndataPointer rdPtr
) internal pure returns (ReturndataPointer rdPtrChild) {
rdPtrChild = rdPtr.offset(rdPtr.readUint256() & OffsetOrLengthMask);
}
/// @dev Returns the returndata pointer one word after `cdPtr`.
function next(
ReturndataPointer rdPtr
) internal pure returns (ReturndataPointer rdPtrNext) {
assembly {
rdPtrNext := add(rdPtr, _OneWord)
}
}
/// @dev Returns the returndata pointer `_offset` bytes after `cdPtr`.
function offset(
ReturndataPointer rdPtr,
uint256 _offset
) internal pure returns (ReturndataPointer rdPtrNext) {
assembly {
rdPtrNext := add(rdPtr, _offset)
}
}
/// @dev Copies `size` bytes from returndata starting at `src` to memory at
/// `dst`.
function copy(
ReturndataPointer src,
MemoryPointer dst,
uint256 size
) internal pure {
assembly {
returndatacopy(dst, src, size)
}
}
}
library MemoryPointerLib {
function copy(
MemoryPointer src,
MemoryPointer dst,
uint256 size
) internal view {
assembly {
let success := staticcall(
gas(),
IdentityPrecompileAddress,
src,
size,
dst,
size
)
if or(iszero(returndatasize()), iszero(success)) {
revert(0, 0)
}
}
}
function lt(
MemoryPointer a,
MemoryPointer b
) internal pure returns (bool c) {
assembly {
c := lt(a, b)
}
}
function gt(
MemoryPointer a,
MemoryPointer b
) internal pure returns (bool c) {
assembly {
c := gt(a, b)
}
}
function eq(
MemoryPointer a,
MemoryPointer b
) internal pure returns (bool c) {
assembly {
c := eq(a, b)
}
}
function isNull(MemoryPointer a) internal pure returns (bool b) {
assembly {
b := iszero(a)
}
}
function hash(
MemoryPointer ptr,
uint256 length
) internal pure returns (bytes32 _hash) {
assembly {
_hash := keccak256(ptr, length)
}
}
/// @dev Returns the memory pointer one word after `mPtr`.
function next(
MemoryPointer mPtr
) internal pure returns (MemoryPointer mPtrNext) {
assembly {
mPtrNext := add(mPtr, _OneWord)
}
}
/// @dev Returns the memory pointer `_offset` bytes after `mPtr`.
function offset(
MemoryPointer mPtr,
uint256 _offset
) internal pure returns (MemoryPointer mPtrNext) {
assembly {
mPtrNext := add(mPtr, _offset)
}
}
/// @dev Resolves a pointer at `mPtr + headOffset` to a memory
/// pointer. `mPtr` must point to some parent object with a dynamic
/// type's pointer stored at `mPtr + headOffset`.
function pptr(
MemoryPointer mPtr,
uint256 headOffset
) internal pure returns (MemoryPointer mPtrChild) {
mPtrChild = mPtr.offset(headOffset).readMemoryPointer();
}
/// @dev Resolves a pointer stored at `mPtr` to a memory pointer.
/// `mPtr` must point to some parent object with a dynamic type as its
/// first member, e.g. `struct { bytes data; }`
function pptr(
MemoryPointer mPtr
) internal pure returns (MemoryPointer mPtrChild) {
mPtrChild = mPtr.readMemoryPointer();
}
}
library CalldataReaders {
/// @dev Reads the value at `cdPtr` and applies a mask to return only the
/// last 4 bytes.
function readMaskedUint256(
CalldataPointer cdPtr
) internal pure returns (uint256 value) {
value = cdPtr.readUint256() & OffsetOrLengthMask;
}
/// @dev Reads the bool at `cdPtr` in calldata.
function readBool(
CalldataPointer cdPtr
) internal pure returns (bool value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the address at `cdPtr` in calldata.
function readAddress(
CalldataPointer cdPtr
) internal pure returns (address value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes1 at `cdPtr` in calldata.
function readBytes1(
CalldataPointer cdPtr
) internal pure returns (bytes1 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes2 at `cdPtr` in calldata.
function readBytes2(
CalldataPointer cdPtr
) internal pure returns (bytes2 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes3 at `cdPtr` in calldata.
function readBytes3(
CalldataPointer cdPtr
) internal pure returns (bytes3 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes4 at `cdPtr` in calldata.
function readBytes4(
CalldataPointer cdPtr
) internal pure returns (bytes4 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes5 at `cdPtr` in calldata.
function readBytes5(
CalldataPointer cdPtr
) internal pure returns (bytes5 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes6 at `cdPtr` in calldata.
function readBytes6(
CalldataPointer cdPtr
) internal pure returns (bytes6 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes7 at `cdPtr` in calldata.
function readBytes7(
CalldataPointer cdPtr
) internal pure returns (bytes7 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes8 at `cdPtr` in calldata.
function readBytes8(
CalldataPointer cdPtr
) internal pure returns (bytes8 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes9 at `cdPtr` in calldata.
function readBytes9(
CalldataPointer cdPtr
) internal pure returns (bytes9 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes10 at `cdPtr` in calldata.
function readBytes10(
CalldataPointer cdPtr
) internal pure returns (bytes10 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes11 at `cdPtr` in calldata.
function readBytes11(
CalldataPointer cdPtr
) internal pure returns (bytes11 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes12 at `cdPtr` in calldata.
function readBytes12(
CalldataPointer cdPtr
) internal pure returns (bytes12 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes13 at `cdPtr` in calldata.
function readBytes13(
CalldataPointer cdPtr
) internal pure returns (bytes13 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes14 at `cdPtr` in calldata.
function readBytes14(
CalldataPointer cdPtr
) internal pure returns (bytes14 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes15 at `cdPtr` in calldata.
function readBytes15(
CalldataPointer cdPtr
) internal pure returns (bytes15 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes16 at `cdPtr` in calldata.
function readBytes16(
CalldataPointer cdPtr
) internal pure returns (bytes16 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes17 at `cdPtr` in calldata.
function readBytes17(
CalldataPointer cdPtr
) internal pure returns (bytes17 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes18 at `cdPtr` in calldata.
function readBytes18(
CalldataPointer cdPtr
) internal pure returns (bytes18 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes19 at `cdPtr` in calldata.
function readBytes19(
CalldataPointer cdPtr
) internal pure returns (bytes19 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes20 at `cdPtr` in calldata.
function readBytes20(
CalldataPointer cdPtr
) internal pure returns (bytes20 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes21 at `cdPtr` in calldata.
function readBytes21(
CalldataPointer cdPtr
) internal pure returns (bytes21 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes22 at `cdPtr` in calldata.
function readBytes22(
CalldataPointer cdPtr
) internal pure returns (bytes22 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes23 at `cdPtr` in calldata.
function readBytes23(
CalldataPointer cdPtr
) internal pure returns (bytes23 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes24 at `cdPtr` in calldata.
function readBytes24(
CalldataPointer cdPtr
) internal pure returns (bytes24 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes25 at `cdPtr` in calldata.
function readBytes25(
CalldataPointer cdPtr
) internal pure returns (bytes25 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes26 at `cdPtr` in calldata.
function readBytes26(
CalldataPointer cdPtr
) internal pure returns (bytes26 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes27 at `cdPtr` in calldata.
function readBytes27(
CalldataPointer cdPtr
) internal pure returns (bytes27 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes28 at `cdPtr` in calldata.
function readBytes28(
CalldataPointer cdPtr
) internal pure returns (bytes28 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes29 at `cdPtr` in calldata.
function readBytes29(
CalldataPointer cdPtr
) internal pure returns (bytes29 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes30 at `cdPtr` in calldata.
function readBytes30(
CalldataPointer cdPtr
) internal pure returns (bytes30 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes31 at `cdPtr` in calldata.
function readBytes31(
CalldataPointer cdPtr
) internal pure returns (bytes31 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the bytes32 at `cdPtr` in calldata.
function readBytes32(
CalldataPointer cdPtr
) internal pure returns (bytes32 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint8 at `cdPtr` in calldata.
function readUint8(
CalldataPointer cdPtr
) internal pure returns (uint8 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint16 at `cdPtr` in calldata.
function readUint16(
CalldataPointer cdPtr
) internal pure returns (uint16 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint24 at `cdPtr` in calldata.
function readUint24(
CalldataPointer cdPtr
) internal pure returns (uint24 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint32 at `cdPtr` in calldata.
function readUint32(
CalldataPointer cdPtr
) internal pure returns (uint32 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint40 at `cdPtr` in calldata.
function readUint40(
CalldataPointer cdPtr
) internal pure returns (uint40 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint48 at `cdPtr` in calldata.
function readUint48(
CalldataPointer cdPtr
) internal pure returns (uint48 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint56 at `cdPtr` in calldata.
function readUint56(
CalldataPointer cdPtr
) internal pure returns (uint56 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint64 at `cdPtr` in calldata.
function readUint64(
CalldataPointer cdPtr
) internal pure returns (uint64 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint72 at `cdPtr` in calldata.
function readUint72(
CalldataPointer cdPtr
) internal pure returns (uint72 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint80 at `cdPtr` in calldata.
function readUint80(
CalldataPointer cdPtr
) internal pure returns (uint80 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint88 at `cdPtr` in calldata.
function readUint88(
CalldataPointer cdPtr
) internal pure returns (uint88 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint96 at `cdPtr` in calldata.
function readUint96(
CalldataPointer cdPtr
) internal pure returns (uint96 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint104 at `cdPtr` in calldata.
function readUint104(
CalldataPointer cdPtr
) internal pure returns (uint104 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint112 at `cdPtr` in calldata.
function readUint112(
CalldataPointer cdPtr
) internal pure returns (uint112 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint120 at `cdPtr` in calldata.
function readUint120(
CalldataPointer cdPtr
) internal pure returns (uint120 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint128 at `cdPtr` in calldata.
function readUint128(
CalldataPointer cdPtr
) internal pure returns (uint128 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint136 at `cdPtr` in calldata.
function readUint136(
CalldataPointer cdPtr
) internal pure returns (uint136 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint144 at `cdPtr` in calldata.
function readUint144(
CalldataPointer cdPtr
) internal pure returns (uint144 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint152 at `cdPtr` in calldata.
function readUint152(
CalldataPointer cdPtr
) internal pure returns (uint152 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint160 at `cdPtr` in calldata.
function readUint160(
CalldataPointer cdPtr
) internal pure returns (uint160 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint168 at `cdPtr` in calldata.
function readUint168(
CalldataPointer cdPtr
) internal pure returns (uint168 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint176 at `cdPtr` in calldata.
function readUint176(
CalldataPointer cdPtr
) internal pure returns (uint176 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint184 at `cdPtr` in calldata.
function readUint184(
CalldataPointer cdPtr
) internal pure returns (uint184 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint192 at `cdPtr` in calldata.
function readUint192(
CalldataPointer cdPtr
) internal pure returns (uint192 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint200 at `cdPtr` in calldata.
function readUint200(
CalldataPointer cdPtr
) internal pure returns (uint200 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint208 at `cdPtr` in calldata.
function readUint208(
CalldataPointer cdPtr
) internal pure returns (uint208 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint216 at `cdPtr` in calldata.
function readUint216(
CalldataPointer cdPtr
) internal pure returns (uint216 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint224 at `cdPtr` in calldata.
function readUint224(
CalldataPointer cdPtr
) internal pure returns (uint224 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint232 at `cdPtr` in calldata.
function readUint232(
CalldataPointer cdPtr
) internal pure returns (uint232 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint240 at `cdPtr` in calldata.
function readUint240(
CalldataPointer cdPtr
) internal pure returns (uint240 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint248 at `cdPtr` in calldata.
function readUint248(
CalldataPointer cdPtr
) internal pure returns (uint248 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the uint256 at `cdPtr` in calldata.
function readUint256(
CalldataPointer cdPtr
) internal pure returns (uint256 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int8 at `cdPtr` in calldata.
function readInt8(
CalldataPointer cdPtr
) internal pure returns (int8 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int16 at `cdPtr` in calldata.
function readInt16(
CalldataPointer cdPtr
) internal pure returns (int16 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int24 at `cdPtr` in calldata.
function readInt24(
CalldataPointer cdPtr
) internal pure returns (int24 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int32 at `cdPtr` in calldata.
function readInt32(
CalldataPointer cdPtr
) internal pure returns (int32 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int40 at `cdPtr` in calldata.
function readInt40(
CalldataPointer cdPtr
) internal pure returns (int40 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int48 at `cdPtr` in calldata.
function readInt48(
CalldataPointer cdPtr
) internal pure returns (int48 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int56 at `cdPtr` in calldata.
function readInt56(
CalldataPointer cdPtr
) internal pure returns (int56 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int64 at `cdPtr` in calldata.
function readInt64(
CalldataPointer cdPtr
) internal pure returns (int64 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int72 at `cdPtr` in calldata.
function readInt72(
CalldataPointer cdPtr
) internal pure returns (int72 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int80 at `cdPtr` in calldata.
function readInt80(
CalldataPointer cdPtr
) internal pure returns (int80 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int88 at `cdPtr` in calldata.
function readInt88(
CalldataPointer cdPtr
) internal pure returns (int88 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int96 at `cdPtr` in calldata.
function readInt96(
CalldataPointer cdPtr
) internal pure returns (int96 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int104 at `cdPtr` in calldata.
function readInt104(
CalldataPointer cdPtr
) internal pure returns (int104 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int112 at `cdPtr` in calldata.
function readInt112(
CalldataPointer cdPtr
) internal pure returns (int112 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int120 at `cdPtr` in calldata.
function readInt120(
CalldataPointer cdPtr
) internal pure returns (int120 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int128 at `cdPtr` in calldata.
function readInt128(
CalldataPointer cdPtr
) internal pure returns (int128 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int136 at `cdPtr` in calldata.
function readInt136(
CalldataPointer cdPtr
) internal pure returns (int136 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int144 at `cdPtr` in calldata.
function readInt144(
CalldataPointer cdPtr
) internal pure returns (int144 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int152 at `cdPtr` in calldata.
function readInt152(
CalldataPointer cdPtr
) internal pure returns (int152 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int160 at `cdPtr` in calldata.
function readInt160(
CalldataPointer cdPtr
) internal pure returns (int160 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int168 at `cdPtr` in calldata.
function readInt168(
CalldataPointer cdPtr
) internal pure returns (int168 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int176 at `cdPtr` in calldata.
function readInt176(
CalldataPointer cdPtr
) internal pure returns (int176 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int184 at `cdPtr` in calldata.
function readInt184(
CalldataPointer cdPtr
) internal pure returns (int184 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int192 at `cdPtr` in calldata.
function readInt192(
CalldataPointer cdPtr
) internal pure returns (int192 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int200 at `cdPtr` in calldata.
function readInt200(
CalldataPointer cdPtr
) internal pure returns (int200 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int208 at `cdPtr` in calldata.
function readInt208(
CalldataPointer cdPtr
) internal pure returns (int208 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int216 at `cdPtr` in calldata.
function readInt216(
CalldataPointer cdPtr
) internal pure returns (int216 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int224 at `cdPtr` in calldata.
function readInt224(
CalldataPointer cdPtr
) internal pure returns (int224 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int232 at `cdPtr` in calldata.
function readInt232(
CalldataPointer cdPtr
) internal pure returns (int232 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int240 at `cdPtr` in calldata.
function readInt240(
CalldataPointer cdPtr
) internal pure returns (int240 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int248 at `cdPtr` in calldata.
function readInt248(
CalldataPointer cdPtr
) internal pure returns (int248 value) {
assembly {
value := calldataload(cdPtr)
}
}
/// @dev Reads the int256 at `cdPtr` in calldata.
function readInt256(
CalldataPointer cdPtr
) internal pure returns (int256 value) {
assembly {
value := calldataload(cdPtr)
}
}
}
library ReturndataReaders {
/// @dev Reads value at `rdPtr` & applies a mask to return only last 4 bytes
function readMaskedUint256(
ReturndataPointer rdPtr
) internal pure returns (uint256 value) {
value = rdPtr.readUint256() & OffsetOrLengthMask;
}
/// @dev Reads the bool at `rdPtr` in returndata.
function readBool(
ReturndataPointer rdPtr
) internal pure returns (bool value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the address at `rdPtr` in returndata.
function readAddress(
ReturndataPointer rdPtr
) internal pure returns (address value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes1 at `rdPtr` in returndata.
function readBytes1(
ReturndataPointer rdPtr
) internal pure returns (bytes1 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes2 at `rdPtr` in returndata.
function readBytes2(
ReturndataPointer rdPtr
) internal pure returns (bytes2 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes3 at `rdPtr` in returndata.
function readBytes3(
ReturndataPointer rdPtr
) internal pure returns (bytes3 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes4 at `rdPtr` in returndata.
function readBytes4(
ReturndataPointer rdPtr
) internal pure returns (bytes4 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes5 at `rdPtr` in returndata.
function readBytes5(
ReturndataPointer rdPtr
) internal pure returns (bytes5 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes6 at `rdPtr` in returndata.
function readBytes6(
ReturndataPointer rdPtr
) internal pure returns (bytes6 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes7 at `rdPtr` in returndata.
function readBytes7(
ReturndataPointer rdPtr
) internal pure returns (bytes7 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes8 at `rdPtr` in returndata.
function readBytes8(
ReturndataPointer rdPtr
) internal pure returns (bytes8 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes9 at `rdPtr` in returndata.
function readBytes9(
ReturndataPointer rdPtr
) internal pure returns (bytes9 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes10 at `rdPtr` in returndata.
function readBytes10(
ReturndataPointer rdPtr
) internal pure returns (bytes10 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes11 at `rdPtr` in returndata.
function readBytes11(
ReturndataPointer rdPtr
) internal pure returns (bytes11 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes12 at `rdPtr` in returndata.
function readBytes12(
ReturndataPointer rdPtr
) internal pure returns (bytes12 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes13 at `rdPtr` in returndata.
function readBytes13(
ReturndataPointer rdPtr
) internal pure returns (bytes13 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes14 at `rdPtr` in returndata.
function readBytes14(
ReturndataPointer rdPtr
) internal pure returns (bytes14 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes15 at `rdPtr` in returndata.
function readBytes15(
ReturndataPointer rdPtr
) internal pure returns (bytes15 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes16 at `rdPtr` in returndata.
function readBytes16(
ReturndataPointer rdPtr
) internal pure returns (bytes16 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes17 at `rdPtr` in returndata.
function readBytes17(
ReturndataPointer rdPtr
) internal pure returns (bytes17 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes18 at `rdPtr` in returndata.
function readBytes18(
ReturndataPointer rdPtr
) internal pure returns (bytes18 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes19 at `rdPtr` in returndata.
function readBytes19(
ReturndataPointer rdPtr
) internal pure returns (bytes19 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes20 at `rdPtr` in returndata.
function readBytes20(
ReturndataPointer rdPtr
) internal pure returns (bytes20 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes21 at `rdPtr` in returndata.
function readBytes21(
ReturndataPointer rdPtr
) internal pure returns (bytes21 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes22 at `rdPtr` in returndata.
function readBytes22(
ReturndataPointer rdPtr
) internal pure returns (bytes22 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes23 at `rdPtr` in returndata.
function readBytes23(
ReturndataPointer rdPtr
) internal pure returns (bytes23 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes24 at `rdPtr` in returndata.
function readBytes24(
ReturndataPointer rdPtr
) internal pure returns (bytes24 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes25 at `rdPtr` in returndata.
function readBytes25(
ReturndataPointer rdPtr
) internal pure returns (bytes25 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes26 at `rdPtr` in returndata.
function readBytes26(
ReturndataPointer rdPtr
) internal pure returns (bytes26 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes27 at `rdPtr` in returndata.
function readBytes27(
ReturndataPointer rdPtr
) internal pure returns (bytes27 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes28 at `rdPtr` in returndata.
function readBytes28(
ReturndataPointer rdPtr
) internal pure returns (bytes28 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes29 at `rdPtr` in returndata.
function readBytes29(
ReturndataPointer rdPtr
) internal pure returns (bytes29 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes30 at `rdPtr` in returndata.
function readBytes30(
ReturndataPointer rdPtr
) internal pure returns (bytes30 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes31 at `rdPtr` in returndata.
function readBytes31(
ReturndataPointer rdPtr
) internal pure returns (bytes31 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the bytes32 at `rdPtr` in returndata.
function readBytes32(
ReturndataPointer rdPtr
) internal pure returns (bytes32 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint8 at `rdPtr` in returndata.
function readUint8(
ReturndataPointer rdPtr
) internal pure returns (uint8 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint16 at `rdPtr` in returndata.
function readUint16(
ReturndataPointer rdPtr
) internal pure returns (uint16 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint24 at `rdPtr` in returndata.
function readUint24(
ReturndataPointer rdPtr
) internal pure returns (uint24 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint32 at `rdPtr` in returndata.
function readUint32(
ReturndataPointer rdPtr
) internal pure returns (uint32 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint40 at `rdPtr` in returndata.
function readUint40(
ReturndataPointer rdPtr
) internal pure returns (uint40 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint48 at `rdPtr` in returndata.
function readUint48(
ReturndataPointer rdPtr
) internal pure returns (uint48 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint56 at `rdPtr` in returndata.
function readUint56(
ReturndataPointer rdPtr
) internal pure returns (uint56 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint64 at `rdPtr` in returndata.
function readUint64(
ReturndataPointer rdPtr
) internal pure returns (uint64 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint72 at `rdPtr` in returndata.
function readUint72(
ReturndataPointer rdPtr
) internal pure returns (uint72 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint80 at `rdPtr` in returndata.
function readUint80(
ReturndataPointer rdPtr
) internal pure returns (uint80 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint88 at `rdPtr` in returndata.
function readUint88(
ReturndataPointer rdPtr
) internal pure returns (uint88 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint96 at `rdPtr` in returndata.
function readUint96(
ReturndataPointer rdPtr
) internal pure returns (uint96 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint104 at `rdPtr` in returndata.
function readUint104(
ReturndataPointer rdPtr
) internal pure returns (uint104 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint112 at `rdPtr` in returndata.
function readUint112(
ReturndataPointer rdPtr
) internal pure returns (uint112 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint120 at `rdPtr` in returndata.
function readUint120(
ReturndataPointer rdPtr
) internal pure returns (uint120 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint128 at `rdPtr` in returndata.
function readUint128(
ReturndataPointer rdPtr
) internal pure returns (uint128 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint136 at `rdPtr` in returndata.
function readUint136(
ReturndataPointer rdPtr
) internal pure returns (uint136 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint144 at `rdPtr` in returndata.
function readUint144(
ReturndataPointer rdPtr
) internal pure returns (uint144 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint152 at `rdPtr` in returndata.
function readUint152(
ReturndataPointer rdPtr
) internal pure returns (uint152 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint160 at `rdPtr` in returndata.
function readUint160(
ReturndataPointer rdPtr
) internal pure returns (uint160 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint168 at `rdPtr` in returndata.
function readUint168(
ReturndataPointer rdPtr
) internal pure returns (uint168 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint176 at `rdPtr` in returndata.
function readUint176(
ReturndataPointer rdPtr
) internal pure returns (uint176 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint184 at `rdPtr` in returndata.
function readUint184(
ReturndataPointer rdPtr
) internal pure returns (uint184 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint192 at `rdPtr` in returndata.
function readUint192(
ReturndataPointer rdPtr
) internal pure returns (uint192 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint200 at `rdPtr` in returndata.
function readUint200(
ReturndataPointer rdPtr
) internal pure returns (uint200 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint208 at `rdPtr` in returndata.
function readUint208(
ReturndataPointer rdPtr
) internal pure returns (uint208 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint216 at `rdPtr` in returndata.
function readUint216(
ReturndataPointer rdPtr
) internal pure returns (uint216 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint224 at `rdPtr` in returndata.
function readUint224(
ReturndataPointer rdPtr
) internal pure returns (uint224 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint232 at `rdPtr` in returndata.
function readUint232(
ReturndataPointer rdPtr
) internal pure returns (uint232 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint240 at `rdPtr` in returndata.
function readUint240(
ReturndataPointer rdPtr
) internal pure returns (uint240 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint248 at `rdPtr` in returndata.
function readUint248(
ReturndataPointer rdPtr
) internal pure returns (uint248 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the uint256 at `rdPtr` in returndata.
function readUint256(
ReturndataPointer rdPtr
) internal pure returns (uint256 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int8 at `rdPtr` in returndata.
function readInt8(
ReturndataPointer rdPtr
) internal pure returns (int8 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int16 at `rdPtr` in returndata.
function readInt16(
ReturndataPointer rdPtr
) internal pure returns (int16 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int24 at `rdPtr` in returndata.
function readInt24(
ReturndataPointer rdPtr
) internal pure returns (int24 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int32 at `rdPtr` in returndata.
function readInt32(
ReturndataPointer rdPtr
) internal pure returns (int32 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int40 at `rdPtr` in returndata.
function readInt40(
ReturndataPointer rdPtr
) internal pure returns (int40 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int48 at `rdPtr` in returndata.
function readInt48(
ReturndataPointer rdPtr
) internal pure returns (int48 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int56 at `rdPtr` in returndata.
function readInt56(
ReturndataPointer rdPtr
) internal pure returns (int56 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int64 at `rdPtr` in returndata.
function readInt64(
ReturndataPointer rdPtr
) internal pure returns (int64 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int72 at `rdPtr` in returndata.
function readInt72(
ReturndataPointer rdPtr
) internal pure returns (int72 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int80 at `rdPtr` in returndata.
function readInt80(
ReturndataPointer rdPtr
) internal pure returns (int80 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int88 at `rdPtr` in returndata.
function readInt88(
ReturndataPointer rdPtr
) internal pure returns (int88 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int96 at `rdPtr` in returndata.
function readInt96(
ReturndataPointer rdPtr
) internal pure returns (int96 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int104 at `rdPtr` in returndata.
function readInt104(
ReturndataPointer rdPtr
) internal pure returns (int104 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int112 at `rdPtr` in returndata.
function readInt112(
ReturndataPointer rdPtr
) internal pure returns (int112 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int120 at `rdPtr` in returndata.
function readInt120(
ReturndataPointer rdPtr
) internal pure returns (int120 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int128 at `rdPtr` in returndata.
function readInt128(
ReturndataPointer rdPtr
) internal pure returns (int128 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int136 at `rdPtr` in returndata.
function readInt136(
ReturndataPointer rdPtr
) internal pure returns (int136 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int144 at `rdPtr` in returndata.
function readInt144(
ReturndataPointer rdPtr
) internal pure returns (int144 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int152 at `rdPtr` in returndata.
function readInt152(
ReturndataPointer rdPtr
) internal pure returns (int152 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int160 at `rdPtr` in returndata.
function readInt160(
ReturndataPointer rdPtr
) internal pure returns (int160 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int168 at `rdPtr` in returndata.
function readInt168(
ReturndataPointer rdPtr
) internal pure returns (int168 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int176 at `rdPtr` in returndata.
function readInt176(
ReturndataPointer rdPtr
) internal pure returns (int176 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int184 at `rdPtr` in returndata.
function readInt184(
ReturndataPointer rdPtr
) internal pure returns (int184 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int192 at `rdPtr` in returndata.
function readInt192(
ReturndataPointer rdPtr
) internal pure returns (int192 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int200 at `rdPtr` in returndata.
function readInt200(
ReturndataPointer rdPtr
) internal pure returns (int200 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int208 at `rdPtr` in returndata.
function readInt208(
ReturndataPointer rdPtr
) internal pure returns (int208 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int216 at `rdPtr` in returndata.
function readInt216(
ReturndataPointer rdPtr
) internal pure returns (int216 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int224 at `rdPtr` in returndata.
function readInt224(
ReturndataPointer rdPtr
) internal pure returns (int224 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int232 at `rdPtr` in returndata.
function readInt232(
ReturndataPointer rdPtr
) internal pure returns (int232 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int240 at `rdPtr` in returndata.
function readInt240(
ReturndataPointer rdPtr
) internal pure returns (int240 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int248 at `rdPtr` in returndata.
function readInt248(
ReturndataPointer rdPtr
) internal pure returns (int248 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
/// @dev Reads the int256 at `rdPtr` in returndata.
function readInt256(
ReturndataPointer rdPtr
) internal pure returns (int256 value) {
assembly {
returndatacopy(0, rdPtr, _OneWord)
value := mload(0)
}
}
}
library MemoryReaders {
/// @dev Reads the memory pointer at `mPtr` in memory.
function readMemoryPointer(
MemoryPointer mPtr
) internal pure returns (MemoryPointer value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads value at `mPtr` & applies a mask to return only last 4 bytes
function readMaskedUint256(
MemoryPointer mPtr
) internal pure returns (uint256 value) {
value = mPtr.readUint256() & OffsetOrLengthMask;
}
/// @dev Reads the bool at `mPtr` in memory.
function readBool(MemoryPointer mPtr) internal pure returns (bool value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the address at `mPtr` in memory.
function readAddress(
MemoryPointer mPtr
) internal pure returns (address value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes1 at `mPtr` in memory.
function readBytes1(
MemoryPointer mPtr
) internal pure returns (bytes1 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes2 at `mPtr` in memory.
function readBytes2(
MemoryPointer mPtr
) internal pure returns (bytes2 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes3 at `mPtr` in memory.
function readBytes3(
MemoryPointer mPtr
) internal pure returns (bytes3 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes4 at `mPtr` in memory.
function readBytes4(
MemoryPointer mPtr
) internal pure returns (bytes4 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes5 at `mPtr` in memory.
function readBytes5(
MemoryPointer mPtr
) internal pure returns (bytes5 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes6 at `mPtr` in memory.
function readBytes6(
MemoryPointer mPtr
) internal pure returns (bytes6 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes7 at `mPtr` in memory.
function readBytes7(
MemoryPointer mPtr
) internal pure returns (bytes7 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes8 at `mPtr` in memory.
function readBytes8(
MemoryPointer mPtr
) internal pure returns (bytes8 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes9 at `mPtr` in memory.
function readBytes9(
MemoryPointer mPtr
) internal pure returns (bytes9 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes10 at `mPtr` in memory.
function readBytes10(
MemoryPointer mPtr
) internal pure returns (bytes10 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes11 at `mPtr` in memory.
function readBytes11(
MemoryPointer mPtr
) internal pure returns (bytes11 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes12 at `mPtr` in memory.
function readBytes12(
MemoryPointer mPtr
) internal pure returns (bytes12 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes13 at `mPtr` in memory.
function readBytes13(
MemoryPointer mPtr
) internal pure returns (bytes13 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes14 at `mPtr` in memory.
function readBytes14(
MemoryPointer mPtr
) internal pure returns (bytes14 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes15 at `mPtr` in memory.
function readBytes15(
MemoryPointer mPtr
) internal pure returns (bytes15 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes16 at `mPtr` in memory.
function readBytes16(
MemoryPointer mPtr
) internal pure returns (bytes16 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes17 at `mPtr` in memory.
function readBytes17(
MemoryPointer mPtr
) internal pure returns (bytes17 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes18 at `mPtr` in memory.
function readBytes18(
MemoryPointer mPtr
) internal pure returns (bytes18 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes19 at `mPtr` in memory.
function readBytes19(
MemoryPointer mPtr
) internal pure returns (bytes19 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes20 at `mPtr` in memory.
function readBytes20(
MemoryPointer mPtr
) internal pure returns (bytes20 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes21 at `mPtr` in memory.
function readBytes21(
MemoryPointer mPtr
) internal pure returns (bytes21 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes22 at `mPtr` in memory.
function readBytes22(
MemoryPointer mPtr
) internal pure returns (bytes22 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes23 at `mPtr` in memory.
function readBytes23(
MemoryPointer mPtr
) internal pure returns (bytes23 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes24 at `mPtr` in memory.
function readBytes24(
MemoryPointer mPtr
) internal pure returns (bytes24 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes25 at `mPtr` in memory.
function readBytes25(
MemoryPointer mPtr
) internal pure returns (bytes25 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes26 at `mPtr` in memory.
function readBytes26(
MemoryPointer mPtr
) internal pure returns (bytes26 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes27 at `mPtr` in memory.
function readBytes27(
MemoryPointer mPtr
) internal pure returns (bytes27 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes28 at `mPtr` in memory.
function readBytes28(
MemoryPointer mPtr
) internal pure returns (bytes28 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes29 at `mPtr` in memory.
function readBytes29(
MemoryPointer mPtr
) internal pure returns (bytes29 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes30 at `mPtr` in memory.
function readBytes30(
MemoryPointer mPtr
) internal pure returns (bytes30 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes31 at `mPtr` in memory.
function readBytes31(
MemoryPointer mPtr
) internal pure returns (bytes31 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the bytes32 at `mPtr` in memory.
function readBytes32(
MemoryPointer mPtr
) internal pure returns (bytes32 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint8 at `mPtr` in memory.
function readUint8(MemoryPointer mPtr) internal pure returns (uint8 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint16 at `mPtr` in memory.
function readUint16(
MemoryPointer mPtr
) internal pure returns (uint16 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint24 at `mPtr` in memory.
function readUint24(
MemoryPointer mPtr
) internal pure returns (uint24 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint32 at `mPtr` in memory.
function readUint32(
MemoryPointer mPtr
) internal pure returns (uint32 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint40 at `mPtr` in memory.
function readUint40(
MemoryPointer mPtr
) internal pure returns (uint40 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint48 at `mPtr` in memory.
function readUint48(
MemoryPointer mPtr
) internal pure returns (uint48 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint56 at `mPtr` in memory.
function readUint56(
MemoryPointer mPtr
) internal pure returns (uint56 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint64 at `mPtr` in memory.
function readUint64(
MemoryPointer mPtr
) internal pure returns (uint64 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint72 at `mPtr` in memory.
function readUint72(
MemoryPointer mPtr
) internal pure returns (uint72 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint80 at `mPtr` in memory.
function readUint80(
MemoryPointer mPtr
) internal pure returns (uint80 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint88 at `mPtr` in memory.
function readUint88(
MemoryPointer mPtr
) internal pure returns (uint88 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint96 at `mPtr` in memory.
function readUint96(
MemoryPointer mPtr
) internal pure returns (uint96 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint104 at `mPtr` in memory.
function readUint104(
MemoryPointer mPtr
) internal pure returns (uint104 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint112 at `mPtr` in memory.
function readUint112(
MemoryPointer mPtr
) internal pure returns (uint112 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint120 at `mPtr` in memory.
function readUint120(
MemoryPointer mPtr
) internal pure returns (uint120 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint128 at `mPtr` in memory.
function readUint128(
MemoryPointer mPtr
) internal pure returns (uint128 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint136 at `mPtr` in memory.
function readUint136(
MemoryPointer mPtr
) internal pure returns (uint136 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint144 at `mPtr` in memory.
function readUint144(
MemoryPointer mPtr
) internal pure returns (uint144 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint152 at `mPtr` in memory.
function readUint152(
MemoryPointer mPtr
) internal pure returns (uint152 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint160 at `mPtr` in memory.
function readUint160(
MemoryPointer mPtr
) internal pure returns (uint160 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint168 at `mPtr` in memory.
function readUint168(
MemoryPointer mPtr
) internal pure returns (uint168 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint176 at `mPtr` in memory.
function readUint176(
MemoryPointer mPtr
) internal pure returns (uint176 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint184 at `mPtr` in memory.
function readUint184(
MemoryPointer mPtr
) internal pure returns (uint184 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint192 at `mPtr` in memory.
function readUint192(
MemoryPointer mPtr
) internal pure returns (uint192 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint200 at `mPtr` in memory.
function readUint200(
MemoryPointer mPtr
) internal pure returns (uint200 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint208 at `mPtr` in memory.
function readUint208(
MemoryPointer mPtr
) internal pure returns (uint208 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint216 at `mPtr` in memory.
function readUint216(
MemoryPointer mPtr
) internal pure returns (uint216 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint224 at `mPtr` in memory.
function readUint224(
MemoryPointer mPtr
) internal pure returns (uint224 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint232 at `mPtr` in memory.
function readUint232(
MemoryPointer mPtr
) internal pure returns (uint232 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint240 at `mPtr` in memory.
function readUint240(
MemoryPointer mPtr
) internal pure returns (uint240 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint248 at `mPtr` in memory.
function readUint248(
MemoryPointer mPtr
) internal pure returns (uint248 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the uint256 at `mPtr` in memory.
function readUint256(
MemoryPointer mPtr
) internal pure returns (uint256 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int8 at `mPtr` in memory.
function readInt8(MemoryPointer mPtr) internal pure returns (int8 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int16 at `mPtr` in memory.
function readInt16(MemoryPointer mPtr) internal pure returns (int16 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int24 at `mPtr` in memory.
function readInt24(MemoryPointer mPtr) internal pure returns (int24 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int32 at `mPtr` in memory.
function readInt32(MemoryPointer mPtr) internal pure returns (int32 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int40 at `mPtr` in memory.
function readInt40(MemoryPointer mPtr) internal pure returns (int40 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int48 at `mPtr` in memory.
function readInt48(MemoryPointer mPtr) internal pure returns (int48 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int56 at `mPtr` in memory.
function readInt56(MemoryPointer mPtr) internal pure returns (int56 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int64 at `mPtr` in memory.
function readInt64(MemoryPointer mPtr) internal pure returns (int64 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int72 at `mPtr` in memory.
function readInt72(MemoryPointer mPtr) internal pure returns (int72 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int80 at `mPtr` in memory.
function readInt80(MemoryPointer mPtr) internal pure returns (int80 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int88 at `mPtr` in memory.
function readInt88(MemoryPointer mPtr) internal pure returns (int88 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int96 at `mPtr` in memory.
function readInt96(MemoryPointer mPtr) internal pure returns (int96 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int104 at `mPtr` in memory.
function readInt104(
MemoryPointer mPtr
) internal pure returns (int104 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int112 at `mPtr` in memory.
function readInt112(
MemoryPointer mPtr
) internal pure returns (int112 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int120 at `mPtr` in memory.
function readInt120(
MemoryPointer mPtr
) internal pure returns (int120 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int128 at `mPtr` in memory.
function readInt128(
MemoryPointer mPtr
) internal pure returns (int128 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int136 at `mPtr` in memory.
function readInt136(
MemoryPointer mPtr
) internal pure returns (int136 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int144 at `mPtr` in memory.
function readInt144(
MemoryPointer mPtr
) internal pure returns (int144 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int152 at `mPtr` in memory.
function readInt152(
MemoryPointer mPtr
) internal pure returns (int152 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int160 at `mPtr` in memory.
function readInt160(
MemoryPointer mPtr
) internal pure returns (int160 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int168 at `mPtr` in memory.
function readInt168(
MemoryPointer mPtr
) internal pure returns (int168 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int176 at `mPtr` in memory.
function readInt176(
MemoryPointer mPtr
) internal pure returns (int176 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int184 at `mPtr` in memory.
function readInt184(
MemoryPointer mPtr
) internal pure returns (int184 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int192 at `mPtr` in memory.
function readInt192(
MemoryPointer mPtr
) internal pure returns (int192 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int200 at `mPtr` in memory.
function readInt200(
MemoryPointer mPtr
) internal pure returns (int200 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int208 at `mPtr` in memory.
function readInt208(
MemoryPointer mPtr
) internal pure returns (int208 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int216 at `mPtr` in memory.
function readInt216(
MemoryPointer mPtr
) internal pure returns (int216 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int224 at `mPtr` in memory.
function readInt224(
MemoryPointer mPtr
) internal pure returns (int224 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int232 at `mPtr` in memory.
function readInt232(
MemoryPointer mPtr
) internal pure returns (int232 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int240 at `mPtr` in memory.
function readInt240(
MemoryPointer mPtr
) internal pure returns (int240 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int248 at `mPtr` in memory.
function readInt248(
MemoryPointer mPtr
) internal pure returns (int248 value) {
assembly {
value := mload(mPtr)
}
}
/// @dev Reads the int256 at `mPtr` in memory.
function readInt256(
MemoryPointer mPtr
) internal pure returns (int256 value) {
assembly {
value := mload(mPtr)
}
}
}
library MemoryWriters {
/// @dev Writes `valuePtr` to memory at `mPtr`.
function write(MemoryPointer mPtr, MemoryPointer valuePtr) internal pure {
assembly {
mstore(mPtr, valuePtr)
}
}
/// @dev Writes a boolean `value` to `mPtr` in memory.
function write(MemoryPointer mPtr, bool value) internal pure {
assembly {
mstore(mPtr, value)
}
}
/// @dev Writes an address `value` to `mPtr` in memory.
function write(MemoryPointer mPtr, address value) internal pure {
assembly {
mstore(mPtr, value)
}
}
/// @dev Writes a bytes32 `value` to `mPtr` in memory.
/// Separate name to disambiguate literal write parameters.
function writeBytes32(MemoryPointer mPtr, bytes32 value) internal pure {
assembly {
mstore(mPtr, value)
}
}
/// @dev Writes a uint256 `value` to `mPtr` in memory.
function write(MemoryPointer mPtr, uint256 value) internal pure {
assembly {
mstore(mPtr, value)
}
}
/// @dev Writes an int256 `value` to `mPtr` in memory.
/// Separate name to disambiguate literal write parameters.
function writeInt(MemoryPointer mPtr, int256 value) internal pure {
assembly {
mstore(mPtr, value)
}
}
}
// File: lib/seaport/lib/seaport-types/src/interfaces/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.7;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.19;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check if target is a contract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(target.code.length > 0, "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: src/lib/ERC721SeaDropStructs.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import { AllowListData, CreatorPayout } from "./SeaDropStructs.sol";
/**
* @notice A struct defining public drop data.
* Designed to fit efficiently in two storage slots.
*
* @param startPrice The start price per token. (Up to 1.2m
* of native token, e.g. ETH, MATIC)
* @param endPrice The end price per token. If this differs
* from startPrice, the current price will
* be calculated based on the current time.
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param paymentToken The payment token address. Null for
* native token.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed. (The limit for this field is
* 2^16 - 1)
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct PublicDrop {
uint80 startPrice; // 80/512 bits
uint80 endPrice; // 160/512 bits
uint40 startTime; // 200/512 bits
uint40 endTime; // 240/512 bits
address paymentToken; // 400/512 bits
uint16 maxTotalMintableByWallet; // 416/512 bits
uint16 feeBps; // 432/512 bits
bool restrictFeeRecipients; // 440/512 bits
}
/**
* @notice A struct defining mint params for an allow list.
* An allow list leaf will be composed of `msg.sender` and
* the following params.
*
* Note: Since feeBps is encoded in the leaf, backend should ensure
* that feeBps is acceptable before generating a proof.
*
* @param startPrice The start price per token. (Up to 1.2m
* of native token, e.g. ETH, MATIC)
* @param endPrice The end price per token. If this differs
* from startPrice, the current price will
* be calculated based on the current time.
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param paymentToken The payment token for the mint. Null for
* native token.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed.
* @param maxTokenSupplyForStage The limit of token supply this stage can
* mint within.
* @param dropStageIndex The drop stage index to emit with the event
* for analytical purposes. This should be
* non-zero since the public mint emits with
* index zero.
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct MintParams {
uint256 startPrice;
uint256 endPrice;
uint256 startTime;
uint256 endTime;
address paymentToken;
uint256 maxTotalMintableByWallet;
uint256 maxTokenSupplyForStage;
uint256 dropStageIndex; // non-zero
uint256 feeBps;
bool restrictFeeRecipients;
}
/**
* @dev Struct containing internal SeaDrop implementation logic
* mint details to avoid stack too deep.
*
* @param feeRecipient The fee recipient.
* @param payer The payer of the mint.
* @param minter The mint recipient.
* @param quantity The number of tokens to mint.
* @param withEffects Whether to apply state changes of the mint.
*/
struct MintDetails {
address feeRecipient;
address payer;
address minter;
uint256 quantity;
bool withEffects;
}
/**
* @notice A struct to configure multiple contract options in one transaction.
*/
struct MultiConfigureStruct {
uint256 maxSupply;
string baseURI;
string contractURI;
PublicDrop publicDrop;
string dropURI;
AllowListData allowListData;
CreatorPayout[] creatorPayouts;
bytes32 provenanceHash;
address[] allowedFeeRecipients;
address[] disallowedFeeRecipients;
address[] allowedPayers;
address[] disallowedPayers;
// Server-signed
address[] allowedSigners;
address[] disallowedSigners;
// ERC-2981
address royaltyReceiver;
uint96 royaltyBps;
// Mint
address mintRecipient;
uint256 mintQuantity;
}
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ytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"requestOwnershipHandover","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeBatchTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"isApproved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"newContractURI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint96","name":"feeNumerator","type":"uint96"}],"name":"setDefaultRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"newMaxSupply","type":"uint256"}],"name":"setMaxSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"newProvenanceHash","type":"bytes32"}],"name":"setProvenanceHash","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"totalMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"uri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}] | v0.8.19+commit.7dd6d404 | true | 99,999,999 | paris | false | |||||
NFTCollection | 0x5d94747bf5d45154c7343062ffc2d19af93bc1bf | Solidity | // File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721Upgradeable.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256, /* firstTokenId */
uint256 batchSize
) internal virtual {
if (batchSize > 1) {
if (from != address(0)) {
_balances[from] -= batchSize;
}
if (to != address(0)) {
_balances[to] += batchSize;
}
}
}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual {}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUpgradeable {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/MathUpgradeable.sol";
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = MathUpgradeable.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, MathUpgradeable.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// File: contracts/collectionTemplates/NFTCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../interfaces/internal/INFTCollectionInitializer.sol";
import "../libraries/AddressLibrary.sol";
import "../mixins/collections/CollectionRoyalties.sol";
import "../mixins/collections/NFTCollectionType.sol";
import "../mixins/collections/SequentialMintCollection.sol";
import "../mixins/collections/TokenLimitedCollection.sol";
import "../mixins/shared/ContractFactory.sol";
error NFTCollection_Max_Token_Id_Has_Already_Been_Minted(uint256 maxTokenId);
error NFTCollection_Token_CID_Already_Minted();
error NFTCollection_Token_CID_Required();
error NFTCollection_Token_Creator_Payment_Address_Required();
/**
* @title A collection of 1:1 NFTs by a single creator.
* @notice A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
* @author batu-inal & HardlyDifficult
*/
contract NFTCollection is
INFTCollectionInitializer,
ContractFactory,
Initializable,
ERC165Upgradeable,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
NFTCollectionType,
SequentialMintCollection,
TokenLimitedCollection,
CollectionRoyalties
{
using AddressLibrary for address;
using AddressUpgradeable for address;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @notice Stores hashes minted to prevent duplicates.
* @dev 0 means not yet minted, set to 1 when minted.
* For why using uint is better than using bool here:
* github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
*/
mapping(string => uint256) private cidToMinted;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
/**
* @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
* @param baseURI The new base URI to use.
*/
event BaseURIUpdated(string baseURI);
/**
* @notice Emitted when a new NFT is minted.
* @param creator The address of the collection owner at this time this NFT was minted.
* @param tokenId The tokenId of the newly minted NFT.
* @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
* @param tokenCID The actual CID of the newly minted NFT.
*/
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
/**
* @notice Emitted when the payment address for creator royalties is set.
* @param fromPaymentAddress The original address used for royalty payments.
* @param toPaymentAddress The new address used for royalty payments.
* @param tokenId The NFT which had the royalty payment address updated.
*/
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory) ContractFactory(_contractFactory) NFTCollectionType(NFT_COLLECTION_TYPE) {
// The template will be initialized by the factory when it's registered for use.
}
/**
* @notice Called by the contract factory on creation.
* @param _creator The creator of this collection.
* @param _name The collection's `name`.
* @param _symbol The collection's `symbol`.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol
) external initializer onlyContractFactory {
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator);
// maxTokenId defaults to 0 but may be assigned later on.
}
/**
* @notice Mint an NFT defined by its metadata path.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mint(string calldata tokenCID) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddress(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress
) public returns (uint256 tokenId) {
if (tokenCreatorPaymentAddress == address(0)) {
revert NFTCollection_Token_Creator_Payment_Address_Required();
}
tokenId = _mint(tokenCID);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddressAndApprove(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactory(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the collection creator to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
* @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
*/
function selfDestruct() external onlyOwner {
_selfDestruct();
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
* @param baseURIOverride The new base URI to use for all NFTs in this collection.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* This max may be more than the final `totalSupply` if 1 or more tokens were burned.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
_updateMaxTokenId(_maxTokenId);
}
/**
* @inheritdoc ERC721Upgradeable
* @dev The function here asserts `onlyOwner` while the super confirms ownership.
*/
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) onlyOwner {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
super._burn(tokenId);
}
function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
if (bytes(tokenCID).length == 0) {
revert NFTCollection_Token_CID_Required();
}
if (cidToMinted[tokenCID] != 0) {
revert NFTCollection_Token_CID_Already_Minted();
}
// If the mint will exceed uint32, the addition here will overflow. But it's not realistic to mint that many tokens.
tokenId = ++latestTokenId;
if (maxTokenId != 0 && tokenId > maxTokenId) {
revert NFTCollection_Max_Token_Id_Has_Already_Been_Minted(maxTokenId);
}
cidToMinted[tokenCID] = 1;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId);
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
/**
* @notice The base URI used for all NFTs in this collection.
* @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
* e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
* @return uri The base URI used by this collection.
*/
function baseURI() external view returns (string memory uri) {
uri = _baseURI();
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
* @param tokenCID The CID to check for.
* @return hasBeenMinted True if the creator has already minted an NFT with this CID.
*/
function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
hasBeenMinted = cidToMinted[tokenCID] != 0;
}
/**
* @inheritdoc CollectionRoyalties
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view override returns (address payable creatorPaymentAddress) {
creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(
bytes4 interfaceId
)
public
view
override(ERC165Upgradeable, ERC721Upgradeable, NFTCollectionType, CollectionRoyalties)
returns (bool interfaceSupported)
{
interfaceSupported = super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC721MetadataUpgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
_requireMinted(tokenId);
uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
}
function _baseURI() internal view override returns (string memory uri) {
uri = baseURI_;
if (bytes(uri).length == 0) {
uri = "ipfs://";
}
}
}
// File: contracts/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @title Declares the interface for initializing an NFTCollection contract.
* @author batu-inal & HardlyDifficult
*/
interface INFTCollectionInitializer {
function initialize(address payable _creator, string memory _name, string memory _symbol) external;
}
// File: contracts/interfaces/internal/INFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @title Declares the type of the collection contract.
* @dev This interface is declared as an ERC-165 interface.
* @author reggieag
*/
interface INFTCollectionType {
function getNFTCollectionType() external view returns (string memory collectionType);
}
// File: contracts/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
/**
* @notice Get the recipient addresses to which creator royalties should be sent.
* @dev The expected royalty amounts are communicated with `getFeeBps`.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
/**
* @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
* @dev The expected recipients are communicated with `getFeeRecipients`.
* @param tokenId The ID of the NFT to get royalties for.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
/**
* @notice Get the creator royalties to be sent.
* @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/**
* @notice Get the creator royalties to be sent.
* @param tokenId The ID of the NFT to get royalties for.
* @param salePrice The total price of the sale.
* @return receiver The address to which royalties should be sent.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount);
}
// File: contracts/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
/**
* @notice Returns the creator of this NFT collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creator The creator of this collection.
*/
function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// File: contracts/libraries/AddressLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
address target;
bytes callData;
}
error AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(address addressReturned);
/**
* @title A library for address helpers not already covered by the OZ library.
* @author batu-inal & HardlyDifficult
*/
library AddressLibrary {
using AddressUpgradeable for address;
using AddressUpgradeable for address payable;
/**
* @notice Calls an external contract with arbitrary data and parse the return value into an address.
* @param externalContract The address of the contract to call.
* @param callData The data to send to the contract.
* @return contractAddress The address of the contract returned by the call.
*/
function callAndReturnContractAddress(
address externalContract,
bytes calldata callData
) internal returns (address payable contractAddress) {
bytes memory returnData = externalContract.functionCall(callData);
contractAddress = abi.decode(returnData, (address));
if (!contractAddress.isContract()) {
revert AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(contractAddress);
}
}
function callAndReturnContractAddress(
CallWithoutValue calldata call
) internal returns (address payable contractAddress) {
contractAddress = callAndReturnContractAddress(call.target, call.callData);
}
}
// File: contracts/libraries/ShortStrings.sol
// SPDX-License-Identifier: MIT
// Source: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/260e082/contracts/utils/ShortStrings.sol
// TODO: Swap out for the OZ library version once this has been published.
pragma solidity ^0.8.12;
type ShortString is bytes32;
/**
* @dev This library provides functions to convert short memory strings
* into a `ShortString` type that can be used as an immutable variable.
* Strings of arbitrary length can be optimized if they are short enough by
* the addition of a storage variable used as fallback.
*
* Usage example:
*
* ```solidity
* contract Named {
* using ShortStrings for *;
*
* ShortString private immutable _name;
* string private _nameFallback;
*
* constructor(string memory contractName) {
* _name = contractName.toShortStringWithFallback(_nameFallback);
* }
*
* function name() external view returns (string memory) {
* return _name.toStringWithFallback(_nameFallback);
* }
* }
* ```
*/
library ShortStrings {
error StringTooLong(string str);
/**
* @dev Encode a string of at most 31 chars into a `ShortString`.
*
* This will trigger a `StringTooLong` error is the input string is too long.
*/
function toShortString(string memory str) internal pure returns (ShortString) {
bytes memory bstr = bytes(str);
if (bstr.length > 31) {
revert StringTooLong(str);
}
return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
}
/**
* @dev Decode a `ShortString` back to a "normal" string.
*/
function toString(ShortString sstr) internal pure returns (string memory) {
uint256 len = length(sstr);
// using `new string(len)` would work locally but is not memory safe.
string memory str = new string(32);
/// @solidity memory-safe-assembly
assembly {
mstore(str, len)
mstore(add(str, 0x20), sstr)
}
return str;
}
/**
* @dev Return the length of a `ShortString`.
*/
function length(ShortString sstr) internal pure returns (uint256) {
return uint256(ShortString.unwrap(sstr)) & 0xFF;
}
}
// File: contracts/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
* @author batu-inal & HardlyDifficult
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @inheritdoc IGetFees
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @inheritdoc IGetFees
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function getFeeBps(uint256 /* tokenId */) external pure returns (uint256[] memory royaltiesInBasisPoints) {
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @inheritdoc IGetRoyalties
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the creator proceeds/royalties for the collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creatorPaymentAddress The address to which royalties should be paid.
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view virtual returns (address payable creatorPaymentAddress);
/**
* @inheritdoc IRoyaltyInfo
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc IERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
super.supportsInterface(interfaceId));
}
}
// File: contracts/mixins/collections/NFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../libraries/ShortStrings.sol";
import "../../interfaces/internal/INFTCollectionType.sol";
/**
* @title A mixin to add the NFTCollectionType interface to a contract.
* @author HardlyDifficult & reggieag
*/
abstract contract NFTCollectionType is INFTCollectionType, ERC165Upgradeable {
using ShortStrings for string;
using ShortStrings for ShortString;
ShortString private immutable _collectionTypeName;
constructor(string memory collectionTypeName) {
_collectionTypeName = collectionTypeName.toShortString();
}
/**
* @notice Returns a name of the type of collection this contract represents.
* @return collectionType The collection type.
*/
function getNFTCollectionType() external view returns (string memory collectionType) {
collectionType = _collectionTypeName.toString();
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = interfaceId == type(INFTCollectionType).interfaceId || super.supportsInterface(interfaceId);
}
}
// File: contracts/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
error SequentialMintCollection_Caller_Is_Not_Owner(address owner);
error SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(uint256 totalSupply);
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
* @author batu-inal & HardlyDifficult
*/
abstract contract SequentialMintCollection is ITokenCreator, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
* @return The collection's creator/owner address.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
* @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
*/
uint32 public latestTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
// 32-bits free space
/****** End of storage ******/
/**
* @notice Emitted when this collection is self destructed by the creator/owner/admin.
* @param admin The account which requested this contract be self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyOwner() {
if (msg.sender != owner) {
revert SequentialMintCollection_Caller_Is_Not_Owner(owner);
}
_;
}
function _initializeSequentialMintCollection(address payable _creator) internal {
owner = _creator;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
if (totalSupply() != 0) {
revert SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(totalSupply());
}
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @inheritdoc ITokenCreator
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function tokenCreator(uint256 /* tokenId */) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Returns the total amount of tokens stored by the contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// File: contracts/mixins/collections/TokenLimitedCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./SequentialMintCollection.sol";
error TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_May_Not_Increase(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(uint256 currentMintedCount);
error TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
/**
* @title Defines an upper limit on the number of tokens which may be minted by this collection.
* @author HardlyDifficult
*/
abstract contract TokenLimitedCollection is SequentialMintCollection {
/**
* @notice The max tokenId which can be minted.
* @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
* @return The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Emitted when the max tokenId supported by this collection is updated.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
function _initializeTokenLimitedCollection(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
// When 0 is desired, the collection may choose to simply not call this initializer.
revert TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
}
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(maxTokenId);
}
if (maxTokenId != 0 && _maxTokenId >= maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Increase(maxTokenId);
}
if (latestTokenId > _maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(latestTokenId);
}
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
}
// File: contracts/mixins/shared/Constants.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10_000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
////////////////////////////////////////////////////////////////
// Royalties & Take Rates
////////////////////////////////////////////////////////////////
/**
* @dev The max take rate an exhibition can have.
*/
uint256 constant MAX_EXHIBITION_TAKE_RATE = 5_000;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
////////////////////////////////////////////////////////////////
// Gas Limits
////////////////////////////////////////////////////////////////
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
////////////////////////////////////////////////////////////////
// Collection Type Names
////////////////////////////////////////////////////////////////
/**
* @dev The NFT collection type.
*/
string constant NFT_COLLECTION_TYPE = "NFT Collection";
/**
* @dev The NFT drop collection type.
*/
string constant NFT_DROP_COLLECTION_TYPE = "NFT Drop Collection";
/**
* @dev The NFT edition collection type.
*/
string constant NFT_TIMED_EDITION_COLLECTION_TYPE = "NFT Timed Edition Collection";
////////////////////////////////////////////////////////////////
// Business Logic
////////////////////////////////////////////////////////////////
/**
* @dev Limits scheduled start/end times to be less than 2 years in the future.
*/
uint256 constant MAX_SCHEDULED_TIME_IN_THE_FUTURE = 365 days * 2;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
// File: contracts/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
error ContractFactory_Only_Callable_By_Factory_Contract(address contractFactory);
error ContractFactory_Factory_Is_Not_A_Contract();
/**
* @title Stores a reference to the factory which is used to create contract proxies.
* @author batu-inal & HardlyDifficult
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
* @return The factory contract address.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
if (msg.sender != contractFactory) {
revert ContractFactory_Only_Callable_By_Factory_Contract(contractFactory);
}
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
if (!_contractFactory.isContract()) {
revert ContractFactory_Factory_Is_Not_A_Contract();
}
contractFactory = _contractFactory;
}
}
| 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payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"selfDestruct","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"interfaceSupported","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenCreator","outputs":[{"internalType":"address payable","name":"creator","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"uri","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"supply","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURIOverride","type":"string"}],"name":"updateBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_maxTokenId","type":"uint32"}],"name":"updateMaxTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.19+commit.7dd6d404 | true | 1,337,000 | 000000000000000000000000612e2daddc89d91409e40f946f9f7cfe422e777e | Default | false | ||||
ConvexStakingWrapperFrax | 0x4659d5ff63a1e1edd6d5dd9cc315e063c95947d0 | Solidity | // File: contracts\interfaces\IRewardStaking.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;
interface IRewardStaking {
function stakeFor(address, uint256) external;
function stake( uint256) external;
function withdraw(uint256 amount, bool claim) external;
function withdrawAndUnwrap(uint256 amount, bool claim) external;
function earned(address account) external view returns (uint256);
function getReward() external;
function getReward(address _account, bool _claimExtras) external;
function extraRewardsLength() external view returns (uint256);
function extraRewards(uint256 _pid) external view returns (address);
function rewardToken() external view returns (address);
function balanceOf(address _account) external view returns (uint256);
}
// File: contracts\interfaces\IConvexDeposits.sol
pragma solidity 0.6.12;
interface IConvexDeposits {
function deposit(uint256 _pid, uint256 _amount, bool _stake) external returns(bool);
function deposit(uint256 _amount, bool _lock, address _stakeAddress) external;
}
// File: contracts\interfaces\ICvx.sol
pragma solidity 0.6.12;
interface ICvx {
function reductionPerCliff() external view returns(uint256);
function totalSupply() external view returns(uint256);
function totalCliffs() external view returns(uint256);
function maxSupply() external view returns(uint256);
}
// File: contracts\interfaces\CvxMining.sol
pragma solidity 0.6.12;
library CvxMining{
ICvx public constant cvx = ICvx(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B);
function ConvertCrvToCvx(uint256 _amount) external view returns(uint256){
uint256 supply = cvx.totalSupply();
uint256 reductionPerCliff = cvx.reductionPerCliff();
uint256 totalCliffs = cvx.totalCliffs();
uint256 maxSupply = cvx.maxSupply();
uint256 cliff = supply / reductionPerCliff;
//mint if below total cliffs
if(cliff < totalCliffs){
//for reduction% take inverse of current cliff
uint256 reduction = totalCliffs - cliff;
//reduce
_amount = _amount * reduction / totalCliffs;
//supply cap check
uint256 amtTillMax = maxSupply - supply;
if(_amount > amtTillMax){
_amount = amtTillMax;
}
//mint
return _amount;
}
return 0;
}
}
// File: contracts\interfaces\IBooster.sol
pragma solidity 0.6.12;
interface IBooster {
function owner() external view returns(address);
function setVoteDelegate(address _voteDelegate) external;
function vote(uint256 _voteId, address _votingAddress, bool _support) external returns(bool);
function voteGaugeWeight(address[] calldata _gauge, uint256[] calldata _weight ) external returns(bool);
function poolInfo(uint256 _pid) external returns(address _lptoken, address _token, address _gauge, address _crvRewards, address _stash, bool _shutdown);
}
// File: @openzeppelin\contracts\math\SafeMath.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryDiv}.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
// File: @openzeppelin\contracts\token\ERC20\IERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: @openzeppelin\contracts\utils\Address.sol
pragma solidity >=0.6.2 <0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: @openzeppelin\contracts\utils\Context.sol
pragma solidity >=0.6.0 <0.8.0;
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// File: @openzeppelin\contracts\token\ERC20\ERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20 {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
uint8 private _decimals;
/**
* @dev Sets the values for {name} and {symbol}, initializes {decimals} with
* a default value of 18.
*
* To select a different value for {decimals}, use {_setupDecimals}.
*
* All three of these values are immutable: they can only be set once during
* construction.
*/
constructor (string memory name_, string memory symbol_) public {
_name = name_;
_symbol = symbol_;
_decimals = 18;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
* called.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual returns (uint8) {
return _decimals;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `to` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Sets {decimals} to a value other than the default one of 18.
*
* WARNING: This function should only be called from the constructor. Most
* applications that interact with token contracts will not expect
* {decimals} to ever change, and may work incorrectly if it does.
*/
function _setupDecimals(uint8 decimals_) internal virtual {
_decimals = decimals_;
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}
// File: @openzeppelin\contracts\utils\ReentrancyGuard.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor () internal {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// File: contracts\wrappers\ConvexStakingWrapper.sol
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;
//Example of a tokenize a convex staked position.
//if used as collateral some modifications will be needed to fit the specific platform
//Based on Curve.fi's gauge wrapper implementations at https://github.com/curvefi/curve-dao-contracts/tree/master/contracts/gauges/wrappers
contract ConvexStakingWrapper is ERC20, ReentrancyGuard {
using SafeERC20
for IERC20;
using SafeMath
for uint256;
struct EarnedData {
address token;
uint256 amount;
}
struct RewardType {
address reward_token;
address reward_pool;
uint128 reward_integral;
uint128 reward_remaining;
mapping(address => uint256) reward_integral_for;
mapping(address => uint256) claimable_reward;
}
//constants/immutables
address public constant convexBooster = address(0xF403C135812408BFbE8713b5A23a04b3D48AAE31);
address public constant crv = address(0xD533a949740bb3306d119CC777fa900bA034cd52);
address public constant cvx = address(0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B);
address public curveToken;
address public convexToken;
address public convexPool;
uint256 public convexPoolId;
address public collateralVault;
uint256 private constant CRV_INDEX = 0;
uint256 private constant CVX_INDEX = 1;
//rewards
RewardType[] public rewards;
mapping(address => uint256) public registeredRewards;
//management
bool public isShutdown;
bool public isInit;
address public owner;
string internal _tokenname;
string internal _tokensymbol;
event Deposited(address indexed _user, address indexed _account, uint256 _amount, bool _wrapped);
event Withdrawn(address indexed _user, uint256 _amount, bool _unwrapped);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() public
ERC20(
"StakedConvexToken",
"stkCvx"
){
}
function initialize(uint256 _poolId)
virtual external {
require(!isInit,"already init");
owner = msg.sender;
emit OwnershipTransferred(address(0), owner);
(address _lptoken, address _token, , address _rewards, , ) = IBooster(convexBooster).poolInfo(_poolId);
curveToken = _lptoken;
convexToken = _token;
convexPool = _rewards;
convexPoolId = _poolId;
_tokenname = string(abi.encodePacked("Staked ", ERC20(_token).name() ));
_tokensymbol = string(abi.encodePacked("stk", ERC20(_token).symbol()));
isShutdown = false;
isInit = true;
// collateralVault = _vault;
//add rewards
addRewards();
setApprovals();
}
function name() public view override returns (string memory) {
return _tokenname;
}
function symbol() public view override returns (string memory) {
return _tokensymbol;
}
function decimals() public view override returns (uint8) {
return 18;
}
modifier onlyOwner() {
require(owner == msg.sender, "Ownable: caller is not the owner");
_;
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(owner, address(0));
owner = address(0);
}
function shutdown() external onlyOwner {
isShutdown = true;
}
function setApprovals() public {
IERC20(curveToken).safeApprove(convexBooster, 0);
IERC20(curveToken).safeApprove(convexBooster, uint256(-1));
IERC20(convexToken).safeApprove(convexPool, 0);
IERC20(convexToken).safeApprove(convexPool, uint256(-1));
}
function addRewards() public {
address mainPool = convexPool;
if (rewards.length == 0) {
rewards.push(
RewardType({
reward_token: crv,
reward_pool: mainPool,
reward_integral: 0,
reward_remaining: 0
})
);
rewards.push(
RewardType({
reward_token: cvx,
reward_pool: address(0),
reward_integral: 0,
reward_remaining: 0
})
);
registeredRewards[crv] = CRV_INDEX+1; //mark registered at index+1
registeredRewards[cvx] = CVX_INDEX+1; //mark registered at index+1
//send to self to warmup state
IERC20(crv).transfer(address(this),0);
//send to self to warmup state
IERC20(cvx).transfer(address(this),0);
}
uint256 extraCount = IRewardStaking(mainPool).extraRewardsLength();
for (uint256 i = 0; i < extraCount; i++) {
address extraPool = IRewardStaking(mainPool).extraRewards(i);
address extraToken = IRewardStaking(extraPool).rewardToken();
if(extraToken == cvx){
//update cvx reward pool address
rewards[CVX_INDEX].reward_pool = extraPool;
}else if(registeredRewards[extraToken] == 0){
//add new token to list
rewards.push(
RewardType({
reward_token: IRewardStaking(extraPool).rewardToken(),
reward_pool: extraPool,
reward_integral: 0,
reward_remaining: 0
})
);
registeredRewards[extraToken] = rewards.length; //mark registered at index+1
}
}
}
function rewardLength() external view returns(uint256) {
return rewards.length;
}
function _getDepositedBalance(address _account) internal virtual view returns(uint256) {
if (_account == address(0) || _account == collateralVault) {
return 0;
}
//get balance from collateralVault
return balanceOf(_account);
}
function _getTotalSupply() internal virtual view returns(uint256){
//override and add any supply needed (interest based growth)
return totalSupply();
}
function _calcRewardIntegral(uint256 _index, address[2] memory _accounts, uint256[2] memory _balances, uint256 _supply, bool _isClaim) internal{
RewardType storage reward = rewards[_index];
//get difference in balance and remaining rewards
//getReward is unguarded so we use reward_remaining to keep track of how much was actually claimed
uint256 bal = IERC20(reward.reward_token).balanceOf(address(this));
// uint256 d_reward = bal.sub(reward.reward_remaining);
if (_supply > 0 && bal.sub(reward.reward_remaining) > 0) {
reward.reward_integral = reward.reward_integral + uint128(bal.sub(reward.reward_remaining).mul(1e20).div(_supply));
}
//update user integrals
for (uint256 u = 0; u < _accounts.length; u++) {
//do not give rewards to address 0
if (_accounts[u] == address(0)) continue;
if (_accounts[u] == collateralVault) continue;
if(_isClaim && u != 0) continue; //only update/claim for first address and use second as forwarding
uint userI = reward.reward_integral_for[_accounts[u]];
if(_isClaim || userI < reward.reward_integral){
if(_isClaim){
uint256 receiveable = reward.claimable_reward[_accounts[u]].add(_balances[u].mul( uint256(reward.reward_integral).sub(userI)).div(1e20));
if(receiveable > 0){
reward.claimable_reward[_accounts[u]] = 0;
//cheat for gas savings by transfering to the second index in accounts list
//if claiming only the 0 index will update so 1 index can hold forwarding info
//guaranteed to have an address in u+1 so no need to check
IERC20(reward.reward_token).safeTransfer(_accounts[u+1], receiveable);
bal = bal.sub(receiveable);
}
}else{
reward.claimable_reward[_accounts[u]] = reward.claimable_reward[_accounts[u]].add(_balances[u].mul( uint256(reward.reward_integral).sub(userI)).div(1e20));
}
reward.reward_integral_for[_accounts[u]] = reward.reward_integral;
}
}
//update remaining reward here since balance could have changed if claiming
if(bal != reward.reward_remaining){
reward.reward_remaining = uint128(bal);
}
}
function _checkpoint(address[2] memory _accounts) internal nonReentrant{
//if shutdown, no longer checkpoint in case there are problems
if(isShutdown) return;
uint256 supply = _getTotalSupply();
uint256[2] memory depositedBalance;
depositedBalance[0] = _getDepositedBalance(_accounts[0]);
depositedBalance[1] = _getDepositedBalance(_accounts[1]);
IRewardStaking(convexPool).getReward(address(this), true);
_claimExtras();
uint256 rewardCount = rewards.length;
for (uint256 i = 0; i < rewardCount; i++) {
_calcRewardIntegral(i,_accounts,depositedBalance,supply,false);
}
}
function _checkpointAndClaim(address[2] memory _accounts) internal nonReentrant{
uint256 supply = _getTotalSupply();
uint256[2] memory depositedBalance;
depositedBalance[0] = _getDepositedBalance(_accounts[0]); //only do first slot
IRewardStaking(convexPool).getReward(address(this), true);
_claimExtras();
uint256 rewardCount = rewards.length;
for (uint256 i = 0; i < rewardCount; i++) {
_calcRewardIntegral(i,_accounts,depositedBalance,supply,true);
}
}
//claim any rewards not part of the convex pool
function _claimExtras() internal virtual{
//override and add external reward claiming
}
function user_checkpoint(address _account) external returns(bool) {
_checkpoint([_account, address(0)]);
return true;
}
function totalBalanceOf(address _account) external view returns(uint256){
return _getDepositedBalance(_account);
}
//run earned as a mutable function to claim everything before calculating earned rewards
function earned(address _account) external returns(EarnedData[] memory claimable) {
IRewardStaking(convexPool).getReward(address(this), true);
_claimExtras();
return _earned(_account);
}
//run earned as a non-mutative function that may not claim everything, but should report standard convex rewards
function earnedView(address _account) external view returns(EarnedData[] memory claimable) {
return _earned(_account);
}
function _earned(address _account) internal view returns(EarnedData[] memory claimable) {
uint256 supply = _getTotalSupply();
// uint256 depositedBalance = _getDepositedBalance(_account);
uint256 rewardCount = rewards.length;
claimable = new EarnedData[](rewardCount);
for (uint256 i = 0; i < rewardCount; i++) {
RewardType storage reward = rewards[i];
//change in reward is current balance - remaining reward + earned
uint256 bal = IERC20(reward.reward_token).balanceOf(address(this));
uint256 d_reward = bal.sub(reward.reward_remaining);
//some rewards (like minted cvx) may not have a reward pool directly on the convex pool so check if it exists
if(reward.reward_pool != address(0)){
//add earned from the convex reward pool for the given token
d_reward = d_reward.add(IRewardStaking(reward.reward_pool).earned(address(this)));
}
uint256 I = reward.reward_integral;
if (supply > 0) {
I = I + d_reward.mul(1e20).div(supply);
}
uint256 newlyClaimable = _getDepositedBalance(_account).mul(I.sub(reward.reward_integral_for[_account])).div(1e20);
claimable[i].amount = claimable[i].amount.add(reward.claimable_reward[_account].add(newlyClaimable));
claimable[i].token = reward.reward_token;
//calc cvx minted from crv and add to cvx claimables
//note: crv is always index 0 so will always run before cvx
if(i == CRV_INDEX){
//because someone can call claim for the pool outside of checkpoints, need to recalculate crv without the local balance
I = reward.reward_integral;
if (supply > 0) {
I = I + IRewardStaking(reward.reward_pool).earned(address(this)).mul(1e20).div(supply);
}
newlyClaimable = _getDepositedBalance(_account).mul(I.sub(reward.reward_integral_for[_account])).div(1e20);
claimable[CVX_INDEX].amount = CvxMining.ConvertCrvToCvx(newlyClaimable);
claimable[CVX_INDEX].token = cvx;
}
}
return claimable;
}
function getReward(address _account) external {
//claim directly in checkpoint logic to save a bit of gas
_checkpointAndClaim([_account, _account]);
}
function getReward(address _account, address _forwardTo) external {
require(msg.sender == _account, "!self");
//claim directly in checkpoint logic to save a bit of gas
//pack forwardTo into account array to save gas so that a proxy etc doesnt have to double transfer
_checkpointAndClaim([_account,_forwardTo]);
}
//deposit a curve token
function deposit(uint256 _amount, address _to) external {
require(!isShutdown, "shutdown");
//dont need to call checkpoint since _mint() will
if (_amount > 0) {
_mint(_to, _amount);
IERC20(curveToken).safeTransferFrom(msg.sender, address(this), _amount);
IConvexDeposits(convexBooster).deposit(convexPoolId, _amount, true);
}
emit Deposited(msg.sender, _to, _amount, true);
}
//stake a convex token
function stake(uint256 _amount, address _to) external {
require(!isShutdown, "shutdown");
//dont need to call checkpoint since _mint() will
if (_amount > 0) {
_mint(_to, _amount);
IERC20(convexToken).safeTransferFrom(msg.sender, address(this), _amount);
IRewardStaking(convexPool).stake(_amount);
}
emit Deposited(msg.sender, _to, _amount, false);
}
//withdraw to convex deposit token
function withdraw(uint256 _amount) external {
//dont need to call checkpoint since _burn() will
if (_amount > 0) {
_burn(msg.sender, _amount);
IRewardStaking(convexPool).withdraw(_amount, false);
IERC20(convexToken).safeTransfer(msg.sender, _amount);
}
emit Withdrawn(msg.sender, _amount, false);
}
//withdraw to underlying curve lp token
function withdrawAndUnwrap(uint256 _amount) external {
//dont need to call checkpoint since _burn() will
if (_amount > 0) {
_burn(msg.sender, _amount);
IRewardStaking(convexPool).withdrawAndUnwrap(_amount, false);
IERC20(curveToken).safeTransfer(msg.sender, _amount);
}
//events
emit Withdrawn(msg.sender, _amount, true);
}
function _beforeTokenTransfer(address _from, address _to, uint256 _amount) internal override {
_checkpoint([_from, _to]);
}
}
// File: contracts\wrappers\ConvexStakingWrapperFrax.sol
pragma solidity 0.6.12;
interface IFraxFarm {
function lockedLiquidityOf(address account) external view returns (uint256 amount);
}
//Staking wrapper for Frax Finance platform
//use convex LP positions as collateral while still receiving rewards
contract ConvexStakingWrapperFrax is ConvexStakingWrapper {
using SafeERC20
for IERC20;
using SafeMath
for uint256;
constructor() public{}
function initialize(uint256 _poolId)
override external {
require(!isInit,"already init");
owner = msg.sender;
emit OwnershipTransferred(address(0), owner);
(address _lptoken, address _token, , address _rewards, , ) = IBooster(convexBooster).poolInfo(_poolId);
curveToken = _lptoken;
convexToken = _token;
convexPool = _rewards;
convexPoolId = _poolId;
_tokenname = string(abi.encodePacked("Staked ", ERC20(_token).name(), " Frax" ));
_tokensymbol = string(abi.encodePacked("stk", ERC20(_token).symbol(), "-frax"));
isShutdown = false;
isInit = true;
//set vault later
// collateralVault = _vault;
//add rewards
addRewards();
setApprovals();
}
function setVault(address _vault) external onlyOwner{
require(collateralVault == address(0), "already set");
collateralVault = _vault;
}
function _getDepositedBalance(address _account) internal override view returns(uint256) {
if (_account == address(0) || _account == collateralVault) {
return 0;
}
uint256 collateral;
if(collateralVault != address(0)){
collateral = IFraxFarm(collateralVault).lockedLiquidityOf(_account);
}
return balanceOf(_account).add(collateral);
}
} | 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ConvexStakingWrapper.EarnedData[]","name":"claimable","type":"tuple[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"earnedView","outputs":[{"components":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct ConvexStakingWrapper.EarnedData[]","name":"claimable","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"address","name":"_forwardTo","type":"address"}],"name":"getReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"getReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_poolId","type":"uint256"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isInit","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isShutdown","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"registeredRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewards","outputs":[{"internalType":"address","name":"reward_token","type":"address"},{"internalType":"address","name":"reward_pool","type":"address"},{"internalType":"uint128","name":"reward_integral","type":"uint128"},{"internalType":"uint128","name":"reward_remaining","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"setApprovals","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_vault","type":"address"}],"name":"setVault","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"shutdown","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"}],"name":"stake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"totalBalanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"user_checkpoint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawAndUnwrap","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.6.12+commit.27d51765 | true | 200 | Default | CvxMining:3c75bfe6fbfda3a94e7e7e8c2216afc684de5343 | MIT | false | ipfs://cf4ef3e9927ffda3fc30df161533cab9f403f2994468883d2f7d5cad546840fb | ||
BlackSquareNFT | 0x5eca0798c74c1ab8b8acd6764cc02a8f901cf069 | Solidity | // File: contracts/BlackSquareNFT.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
import '@openzeppelin/contracts/token/ERC721/ERC721.sol';
import './ERC2981/ERC2981ContractWideRoyalties.sol';
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./Erc721OperatorFilter/IOperatorFilter.sol";
import "./OBYToken.sol";
contract BlackSquareNFT is ERC721, Ownable, ERC2981ContractWideRoyalties {
using Strings for uint256;
using Counters for Counters.Counter;
uint256 private rewardPerCycle;
uint256 public totalCycleCount = 0;
uint256 constant THRESHOLD = 25;
uint256 constant TOKENS_PER_EDITION = 25;
uint256 constant MAX_NUMBER_EDITIONS = 58;
address private treasury;
string public openSeaContractURI;
string public baseURI;
OBYToken obyToken;
IOperatorFilter operatorFilter;
Counters.Counter private _editionIds;
Counters.Counter private _tokenIds;
struct Edition {
uint256[TOKENS_PER_EDITION] tokens;
uint256 illuminationTimeStamp;
uint256 lastUpdateTimestamp;
uint256 cycle;
uint256 id;
string editionThumbnail;
string illumination;
}
struct OwnerReward {
uint256 rewardPaid;
uint256 rewardStored;
}
struct CreateEditionStruct {
uint256[TOKENS_PER_EDITION] tokens;
uint256 illuminationMoment;
string editionThumbnail;
string illumination;
}
mapping(uint256 => mapping(uint256 => OwnerReward)) private _ownersReward;
mapping(address => bool) private _eligibles;
mapping(uint256 => Edition) private _editions;
mapping(uint256 => uint256) private _editionOfToken;
mapping(address => uint256) private _totalRewardsClaimed;
event RewardWithdrawn(uint256 amount, address sender);
event EditionCreated(uint256 editionId);
constructor(address obyAddress, address _treasury, uint256 _royaltyValue, string memory _openSeaContractURI, string memory _blackSquareBaseURI,
uint256 _rewardPerCycle, address _operatorFilter) ERC721("BlackSquare", "B2") {
obyToken = OBYToken(obyAddress);
operatorFilter = IOperatorFilter(_operatorFilter);
treasury = _treasury;
openSeaContractURI = _openSeaContractURI;
baseURI = _blackSquareBaseURI;
rewardPerCycle = _rewardPerCycle;
_setRoyalties(_treasury, _royaltyValue);
}
modifier onlyEligible() {
require(owner() == _msgSender() || _eligibles[_msgSender()] == true, "BlackSquareNFT: caller is not eligible");
_;
}
function _baseURI() internal view virtual override returns (string memory) {
return baseURI;
}
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721, ERC2981)
returns (bool)
{
return super.supportsInterface(interfaceId);
}
function setContractURI(string memory _contractURI) external onlyOwner {
openSeaContractURI = _contractURI;
}
function setBaseURI(string memory _blackSquareBaseURI) external onlyOwner {
baseURI = _blackSquareBaseURI;
}
function setRewardPerCycle(uint256 _rewardPerCycle) external onlyOwner {
rewardPerCycle = _rewardPerCycle;
}
function setRoyalties(address recipient, uint256 value) external onlyOwner {
_setRoyalties(recipient, value);
}
function setEligibles(address _eligible) external onlyOwner {
_eligibles[_eligible] = true;
}
function contractURI() public view returns (string memory) {
return openSeaContractURI;
}
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual override(ERC721) {
if (
from != address(0) &&
to != address(0) &&
!_mayTransfer(msg.sender, tokenId)
) {
revert("ERC721OperatorFilter: illegal operator");
}
super._beforeTokenTransfer(from, to, tokenId);
}
function _mayTransfer(address operator, uint256 tokenId)
private
view
returns (bool)
{
IOperatorFilter filter = operatorFilter;
if (address(filter) == address(0)) return true;
if (operator == ownerOf(tokenId)) return true;
return filter.mayTransfer(msg.sender);
}
function getEditions() public view returns (Edition[] memory) {
Edition[] memory editions = new Edition[](_editionIds.current() + 1);
for (uint256 editionCounter = 1; editionCounter <= _editionIds.current(); editionCounter++){
editions[editionCounter] = _editions[editionCounter];
}
return editions;
}
function deleteEdition (uint256 editionId) public onlyOwner {
delete _editions[editionId];
}
function createEdition(CreateEditionStruct memory _createEditionStruct) public onlyOwner {
_editionIds.increment();
uint256 editionId = _editionIds.current();
for (uint256 i = 0; i < _createEditionStruct.tokens.length; i++) {
_editionOfToken[_createEditionStruct.tokens[i]] = _editionIds.current();
}
_editions[editionId].tokens = _createEditionStruct.tokens;
_editions[editionId].illuminationTimeStamp = _createEditionStruct.illuminationMoment;
_editions[editionId].lastUpdateTimestamp = block.timestamp;
_editions[editionId].cycle = 1;
_editions[editionId].id = editionId;
_editions[editionId].editionThumbnail = _createEditionStruct.editionThumbnail;
_editions[editionId].illumination = _createEditionStruct.illumination;
emit EditionCreated(editionId);
}
function getCurrentTokenId() external view returns (uint256) {
return _tokenIds.current();
}
function getRewardInOBY () public view returns (uint256, uint256) {
uint256[] memory tokens = getTokensHeldByUser(_msgSender());
require(tokens.length > 0, 'NO BlackSquares held');
uint256 availableReward = 0;
uint256 paidReward = _totalRewardsClaimed[_msgSender()];
for (uint256 i = 0; i < tokens.length; i++) {
(uint256 rewardPertoken, ,) = _getAvailableRewardInOby(tokens[i]);
availableReward += rewardPertoken;
}
return (availableReward, paidReward);
}
function claimRewardInOBY () public returns (uint256) {
uint256[] memory tokens = getTokensHeldByUser(_msgSender());
require(tokens.length > 0, 'NO BlackSquares held');
uint256 availableReward = 0;
for (uint256 i = 0; i < tokens.length; i++) {
(uint256 rewardPertoken, uint256 cycle, uint256 rewardStoredPrev) = _getAvailableRewardInOby(tokens[i]);
availableReward += rewardPertoken;
uint256 tokenId = tokens[i];
uint256 previousCycle = cycle > 1 ? cycle - 1 : 1;
uint256 rewardPaid = rewardPertoken - rewardStoredPrev;
_ownersReward[tokenId][cycle].rewardPaid += rewardPaid;
_totalRewardsClaimed[_msgSender()] += rewardPertoken;
_ownersReward[tokenId][cycle].rewardStored = 0;
if (cycle > 1) {
_ownersReward[tokenId][previousCycle].rewardStored = 0;
}
}
require(availableReward > 0, 'No OBY available to mint');
if (availableReward > 0) {
obyToken.mint(_msgSender(), availableReward);
}
emit RewardWithdrawn(availableReward, _msgSender());
return availableReward;
}
function getTokensHeldByUser(address user) public view returns (uint256[] memory) {
uint256 balance = balanceOf(user);
uint256[] memory emptyTokens = new uint256[](0);
uint256[] memory tokenIds = new uint256[](balance);
uint256 j = 0;
for (uint256 i = 1; i <= _tokenIds.current(); i++ ) {
address tokenOwner = ownerOf(i);
if (tokenOwner == user) {
tokenIds[j] = i;
j++;
}
}
if (tokenIds.length > 0) {
return tokenIds;
} else {
return emptyTokens;
}
}
function mintAndDrop(address[] memory recipients, CreateEditionStruct[] memory _createEditionStruct) public onlyOwner {
uint256 editionCount = 0;
if(_editionIds.current() <= MAX_NUMBER_EDITIONS) {
for (uint256 i = 0; i < recipients.length; i++) {
_tokenIds.increment();
uint256 currentTokenId = _tokenIds.current();
unchecked {
_mint(recipients[i], currentTokenId);
if (currentTokenId == 25 || currentTokenId > 25 && currentTokenId % 25 == 0) {
createEdition(_createEditionStruct[editionCount]);
editionCount++;
}
}
}
}
}
function editEdition(uint256 _editionId, uint256 _illuminationTimeStamp) public onlyEligible returns (uint256) {
updateStoredReward(_editionId);
_editions[_editionId].illuminationTimeStamp = _illuminationTimeStamp;
_editions[_editionId].lastUpdateTimestamp = block.timestamp;
_editions[_editionId].cycle += 1;
totalCycleCount ++;
return _editionId;
}
function updateStoredReward(uint256 editionId) public onlyEligible {
uint256 editionCycle = _editions[editionId].cycle;
for (uint256 tokenId = 0; tokenId < _editions[editionId].tokens.length; tokenId++ ) {
uint256 currentToken = _editions[editionId].tokens[tokenId];
// Normal update where cycle is > 1, Up to the normal rewardPerPeriod was paid out & There is a stored reward >= 0
if (_ownersReward[currentToken][editionCycle].rewardPaid <= (rewardPerCycle / 10000) && editionCycle > 1 && _ownersReward[currentToken][editionCycle - 1].rewardStored >= 0) {
_ownersReward[currentToken][editionCycle].rewardStored = (rewardPerCycle / 10000) - _ownersReward[currentToken][editionCycle].rewardPaid + _ownersReward[currentToken][editionCycle - 1].rewardStored;
// We are in Cycle one, so there is no previously stored reward. Now everything gets stored which is a positive amount or 0
} else if (_ownersReward[currentToken][editionCycle].rewardPaid <= (rewardPerCycle / 10000) && editionCycle == 1) {
_ownersReward[currentToken][editionCycle].rewardStored = (rewardPerCycle / 10000) - _ownersReward[currentToken][editionCycle].rewardPaid;
// In case due to some rounding errors etc. RewardPaid > Reward, Only Stored Reward is carried over if Cycle > 1 and Stored Reward is bigger than 0
} else if (_ownersReward[currentToken][editionCycle].rewardPaid > (rewardPerCycle / 10000) && editionCycle > 1 && _ownersReward[currentToken][editionCycle - 1].rewardStored > 0) {
_ownersReward[currentToken][editionCycle].rewardStored = _ownersReward[currentToken][editionCycle - 1].rewardStored;
// Handle the Edge Cases
} else {
_ownersReward[currentToken][editionCycle].rewardStored = 0;
}
}
}
function getFirstEditionToSetIlluminationDate() public view returns (uint256) {
for (uint256 editionCounter = 1; editionCounter <= _editionIds.current(); editionCounter++){
if (_editions[editionCounter].illuminationTimeStamp < block.timestamp) {
return editionCounter;
}
}
return 0;
}
function getAvailableIlluminaCount() public view returns (uint256) {
uint256 availableIlluminas = totalCycleCount * THRESHOLD;
for (uint256 editionCounter = 1; editionCounter <= _editionIds.current(); editionCounter++){
if (_editions[editionCounter].illuminationTimeStamp < block.timestamp) {
availableIlluminas += THRESHOLD;
}
}
return availableIlluminas;
}
function setIlluminationTimeStamp(uint256 _editionId, uint256 _illuminationTimeStamp) public onlyOwner {
_editions[_editionId].illuminationTimeStamp = _illuminationTimeStamp;
}
function _getAvailableRewardInOby(uint256 tokenId) internal view returns (uint256, uint256, uint256) {
uint256 editionId = _editionOfToken[tokenId];
require(editionId != 0, 'Token Not associated with any Edition');
uint256 illuminationTimeStamp = _editions[editionId].illuminationTimeStamp;
uint256 cycle = _editions[editionId].cycle;
uint256 previousCycle = cycle > 1 ? cycle - 1 : 1;
uint256 lastUpdateTimestamp = _editions[editionId].lastUpdateTimestamp;
uint256 rewardPaid = _ownersReward[tokenId][cycle].rewardPaid > 0 ? _ownersReward[tokenId][cycle].rewardPaid : 0;
uint256 rewardStoredPrev = cycle > 1 ? _ownersReward[tokenId][previousCycle].rewardStored : 0;
// We are in the normal distribution Cycle
if (lastUpdateTimestamp < illuminationTimeStamp && block.timestamp < illuminationTimeStamp && block.timestamp > lastUpdateTimestamp) {
uint256 rewardPerSecond = rewardPerCycle / (illuminationTimeStamp - lastUpdateTimestamp);
uint256 rewardPayableFromCycle = (((rewardPerSecond) * ((block.timestamp) - lastUpdateTimestamp)) / 10000) - rewardPaid;
uint256 returnableAmount = rewardPayableFromCycle >= 1 ? rewardPayableFromCycle + rewardStoredPrev : rewardStoredPrev;
return (returnableAmount, cycle, rewardStoredPrev);
// We are outside the normal cycle, during time of Illumina sale
} else if (lastUpdateTimestamp < illuminationTimeStamp && block.timestamp > illuminationTimeStamp && block.timestamp > lastUpdateTimestamp) {
uint256 returnableAmount = rewardStoredPrev + (rewardPerCycle / 10000) - rewardPaid;
return (returnableAmount, cycle, rewardStoredPrev);
// Handle all edge cases
} else {
return (rewardStoredPrev, cycle, rewardStoredPrev);
}
}
}
// File: @openzeppelin/contracts/token/ERC721/ERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits a {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
}
// File: contracts/ERC2981/ERC2981ContractWideRoyalties.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';
import './ERC2981.sol';
/// @dev This is a contract used to add ERC2981 support to ERC721 and 1155
/// @dev This implementation has the same royalties for each and every tokens
abstract contract ERC2981ContractWideRoyalties is ERC2981 {
RoyaltyInfo private _royalties;
/// @dev Sets token royalties
/// @param recipient recipient of the royalties
/// @param value percentage (using 2 decimals - 10000 = 100, 0 = 0)
function _setRoyalties(address recipient, uint256 value) internal {
require(value <= 10000, 'ERC2981Royalties: Too high');
_royalties = RoyaltyInfo(recipient, uint24(value));
}
/// @inheritdoc IERC2981Royalties
function royaltyInfo(uint256, uint256 value)
external
view
override
returns (address receiver, uint256 royaltyAmount)
{
RoyaltyInfo memory royalties = _royalties;
receiver = royalties.recipient;
royaltyAmount = (value * royalties.amount) / 10000;
}
}
// File: @openzeppelin/contracts/utils/Counters.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)
pragma solidity ^0.8.0;
/**
* @title Counters
* @author Matt Condon (@shrugs)
* @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
* of elements in a mapping, issuing ERC721 ids, or counting request ids.
*
* Include with `using Counters for Counters.Counter;`
*/
library Counters {
struct Counter {
// This variable should never be directly accessed by users of the library: interactions must be restricted to
// the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
// this feature: see https://github.com/ethereum/solidity/issues/4637
uint256 _value; // default: 0
}
function current(Counter storage counter) internal view returns (uint256) {
return counter._value;
}
function increment(Counter storage counter) internal {
unchecked {
counter._value += 1;
}
}
function decrement(Counter storage counter) internal {
uint256 value = counter._value;
require(value > 0, "Counter: decrement overflow");
unchecked {
counter._value = value - 1;
}
}
function reset(Counter storage counter) internal {
counter._value = 0;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: contracts/Erc721OperatorFilter/IOperatorFilter.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
interface IOperatorFilter {
function mayTransfer(address operator) external view returns (bool);
}
// File: contracts/OBYToken.sol
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";
contract OBYToken is ERC20, Ownable {
mapping(address => bool) private _eligibles;
event Destruction(uint256 amount);
constructor() ERC20("OBYToken", "OBY") {}
modifier onlyEligible() {
require(owner() == _msgSender() || _eligibles[msg.sender], "OBYToken: caller is not eligible");
_;
}
function setEligibles(address _eligible) public onlyOwner {
_eligibles[_eligible] = true;
}
function mint(address account, uint256 amount) external onlyEligible {
uint256 sendAmount = amount * (10**18);
_mint(account, sendAmount);
}
function checkBalances(uint256 tokenPrice, address account) external onlyEligible view returns (bool) {
if (balanceOf(account) >= tokenPrice) {
return true;
}
return false;
}
function burnToken(uint256 amount, address account) external onlyEligible {
uint256 sendAmount = amount * (10**18);
_burn(account, sendAmount);
emit Destruction(amount);
}
function getEligibles(address account) public view onlyEligible returns (bool) {
require (account != address(0), "OBYToken: address must not be empty");
return _eligibles[account];
}
}
// File: @openzeppelin/contracts/token/ERC721/IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/ERC2981/ERC2981.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';
import './IERC2981Royalties.sol';
/// @dev This is a contract used to add ERC2981 support to ERC721 and 1155
abstract contract ERC2981 is ERC165, IERC2981Royalties {
struct RoyaltyInfo {
address recipient;
uint24 amount;
}
/// @inheritdoc ERC165
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override
returns (bool)
{
return
interfaceId == type(IERC2981Royalties).interfaceId ||
super.supportsInterface(interfaceId);
}
}
// File: contracts/ERC2981/IERC2981Royalties.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
/// @title IERC2981Royalties
/// @dev Interface for the ERC2981 - Token Royalty standard
interface IERC2981Royalties {
/// @notice Called with the sale price to determine how much royalty
// is owed and to whom.
/// @param _tokenId - the NFT asset queried for royalty information
/// @param _value - the sale price of the NFT asset specified by _tokenId
/// @return _receiver - address of who should be sent the royalty payment
/// @return _royaltyAmount - the royalty payment amount for value sale price
function royaltyInfo(uint256 _tokenId, uint256 _value)
external
view
returns (address _receiver, uint256 _royaltyAmount);
}
// File: @openzeppelin/contracts/token/ERC20/ERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
// File: @openzeppelin/contracts/access/AccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it.
*/
abstract contract AccessControl is Context, IAccessControl, ERC165 {
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
Strings.toHexString(uint160(account), 20),
" is missing role ",
Strings.toHexString(uint256(role), 32)
)
)
);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) public virtual override {
require(account == _msgSender(), "AccessControl: can only renounce roles for self");
_revokeRole(role, account);
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event. Note that unlike {grantRole}, this function doesn't perform any
* checks on the calling account.
*
* [WARNING]
* ====
* This function should only be called from the constructor when setting
* up the initial roles for the system.
*
* Using this function in any other way is effectively circumventing the admin
* system imposed by {AccessControl}.
* ====
*
* NOTE: This function is deprecated in favor of {_grantRole}.
*/
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*/
function _grantRole(bytes32 role, address account) internal virtual {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, _msgSender());
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*/
function _revokeRole(bytes32 role, address account) internal virtual {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: @openzeppelin/contracts/access/IAccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}
| [{"inputs":[{"internalType":"address","name":"obyAddress","type":"address"},{"internalType":"address","name":"_treasury","type":"address"},{"internalType":"uint256","name":"_royaltyValue","type":"uint256"},{"internalType":"string","name":"_openSeaContractURI","type":"string"},{"internalType":"string","name":"_blackSquareBaseURI","type":"string"},{"internalType":"uint256","name":"_rewardPerCycle","type":"uint256"},{"internalType":"address","name":"_operatorFilter","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"editionId","type":"uint256"}],"name":"EditionCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"address","name":"sender","type":"address"}],"name":"RewardWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimRewardInOBY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256[25]","name":"tokens","type":"uint256[25]"},{"internalType":"uint256","name":"illuminationMoment","type":"uint256"},{"internalType":"string","name":"editionThumbnail","type":"string"},{"internalType":"string","name":"illumination","type":"string"}],"internalType":"struct BlackSquareNFT.CreateEditionStruct","name":"_createEditionStruct","type":"tuple"}],"name":"createEdition","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"editionId","type":"uint256"}],"name":"deleteEdition","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_editionId","type":"uint256"},{"internalType":"uint256","name":"_illuminationTimeStamp","type":"uint256"}],"name":"editEdition","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getAvailableIlluminaCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCurrentTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getEditions","outputs":[{"components":[{"internalType":"uint256[25]","name":"tokens","type":"uint256[25]"},{"internalType":"uint256","name":"illuminationTimeStamp","type":"uint256"},{"internalType":"uint256","name":"lastUpdateTimestamp","type":"uint256"},{"internalType":"uint256","name":"cycle","type":"uint256"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"string","name":"editionThumbnail","type":"string"},{"internalType":"string","name":"illumination","type":"string"}],"internalType":"struct BlackSquareNFT.Edition[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getFirstEditionToSetIlluminationDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getRewardInOBY","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getTokensHeldByUser","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"components":[{"internalType":"uint256[25]","name":"tokens","type":"uint256[25]"},{"internalType":"uint256","name":"illuminationMoment","type":"uint256"},{"internalType":"string","name":"editionThumbnail","type":"string"},{"internalType":"string","name":"illumination","type":"string"}],"internalType":"struct BlackSquareNFT.CreateEditionStruct[]","name":"_createEditionStruct","type":"tuple[]"}],"name":"mintAndDrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"openSeaContractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_blackSquareBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_contractURI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_eligible","type":"address"}],"name":"setEligibles","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_editionId","type":"uint256"},{"internalType":"uint256","name":"_illuminationTimeStamp","type":"uint256"}],"name":"setIlluminationTimeStamp","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewardPerCycle","type":"uint256"}],"name":"setRewardPerCycle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"setRoyalties","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalCycleCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"editionId","type":"uint256"}],"name":"updateStoredReward","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.7+commit.e28d00a7 | false | 200 | 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OwnableDelegateProxy | 0xd6e7fb53f059d4b08249fcb697b7c5517f8db384 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
Janus | 0xaf080ec4095c734d6da98d3947d56f93e7235388 | Solidity | // File: Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)
pragma solidity ^0.8.20;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev The ETH balance of the account is not enough to perform the operation.
*/
error AddressInsufficientBalance(address account);
/**
* @dev There's no code at `target` (it is not a contract).
*/
error AddressEmptyCode(address target);
/**
* @dev A call to an address target failed. The target may have reverted.
*/
error FailedInnerCall();
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
if (address(this).balance < amount) {
revert AddressInsufficientBalance(address(this));
}
(bool success, ) = recipient.call{value: amount}("");
if (!success) {
revert FailedInnerCall();
}
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason or custom error, it is bubbled
* up by this function (like regular Solidity function calls). However, if
* the call reverted with no returned reason, this function reverts with a
* {FailedInnerCall} error.
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
if (address(this).balance < value) {
revert AddressInsufficientBalance(address(this));
}
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
* was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
* unsuccessful call.
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata
) internal view returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
// only check if target is a contract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
if (returndata.length == 0 && target.code.length == 0) {
revert AddressEmptyCode(target);
}
return returndata;
}
}
/**
* @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
* revert reason or with a default {FailedInnerCall} error.
*/
function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
if (!success) {
_revert(returndata);
} else {
return returndata;
}
}
/**
* @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
*/
function _revert(bytes memory returndata) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert FailedInnerCall();
}
}
}
// File: Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
// File: IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.20;
import {IERC20} from "./IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC-20 standard.
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: IUniswapV2Factory.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: IUniswapV2Pair.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: IUniswapV2Router01.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
// File: IUniswapV2Router02.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.2;
import './IUniswapV2Router01.sol';
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
// File: Janus.sol
/**
::::::::::: ::: :::: ::: ::: ::: ::::::::
:+: :+: :+: :+:+: :+: :+: :+: :+: :+:
+:+ +:+ +:+ :+:+:+ +:+ +:+ +:+ +:+
+#+ +#++:++#++: +#+ +:+ +#+ +#+ +:+ +#++:++#++
+#+ +#+ +#+ +#+ +#+#+# +#+ +#+ +#+
#+# #+# #+# #+# #+# #+#+# #+# #+# #+# #+#
##### ### ### ### #### ######## ########
A New Era of NFTs is Born! INTRODUCING THE WORLD’S FIRST TRUE-DYNAMIC NFTs
Command the Past, Forge the Future in Storm Warfare: The Next-Gen Collectible Card Game.
Developer: @janusinteractiv
Incubated by @SeedifyFund
Janus Interactive:
•The gatekeeper of the decentralized gaming universe.
•The key holder of the gateway between Web 2.0 and 3.0…
•And the passage to True Ownership and Blockchain revolution…
Storm Warfare Main Links:
•🖥Website: https://stormwarfare.com/
•🐦Twitter: https://twitter.com/StormWarfare
•🌐Discord: https://discord.com/invite/stormwarfare
*/
// SPDX-License-Identifier: unlicense
pragma solidity ^0.8.22;
contract Janus {
string public _name = 'Janus';
string public _symbol = 'JAN';
uint8 public constant decimals = 18;
uint256 public constant totalSupply = 1_000_000_000 * 10 ** decimals;
struct StoreData {
address tokenMkt;
uint8 buyFee;
uint8 sellFee;
}
StoreData public storeData;
uint256 constant swapAmount = totalSupply / 100;
error Permissions();
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
mapping(address => uint256) public balanceOf;
mapping(address => mapping(address => uint256)) public allowance;
address private pair;
address private holder;
address private uniswapLpWallet;
address private Preseed = 0xf98e8802bE886D6710530EdeC8947CB58f779D1b;
address private Seed = 0x007D4c02Dbd6CdC6530561271eF0689914Cc50E4;
address private PublicIDO = 0x34b953631a1748296aE262d3aB62B3Ac2707Ad0A;
address private KOL = 0xa56671587bb7Aa0cA4738eb64BF97C63017f2aF3;
address private Incubation = 0x31e8E4b6AD9e22Ff3DD0fB2cEDA77b03Acf51B39;
address private Privateround = 0x245Da41c2b7827196c2e404Cb3F3e39eb8A40281;
address private Team = 0x36791391cbD6a0654fD63d20206A2435148C7872;
address private Marketing = 0x982777A6635614F230D2ab3313C4Ae4C784Ca526;
address private Treasury = 0x48E23474B996729400304659629b52c30faD8DBa;
address private RewardsStakingLiquidity = 0x96AD2D95A5518a03Aa7Aa2ea7De9377bE1080b70;
address private MarketMaker = 0x4e999EBc63784Af6d5dff90CD4a2Dd3A4a3425a9;
address private constant uniswapV2Router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
IUniswapV2Router02 constant _uniswapV2Router = IUniswapV2Router02(uniswapV2Router);
bool private swapping;
bool private tradingOpen;
address _deployer;
address _executor;
uint8 _initBuyFee = 0;
uint8 _initSellFee = 0;
constructor() {
storeData = StoreData({
tokenMkt: msg.sender,
buyFee: _initBuyFee,
sellFee: _initSellFee
});
allowance[address(this)][address(_uniswapV2Router)] = type(uint256).max;
uniswapLpWallet = msg.sender;
_initDeployer(msg.sender, msg.sender);
balanceOf[uniswapLpWallet] = (totalSupply * 36250) / 1000000;
emit Transfer(address(0), _deployer, balanceOf[uniswapLpWallet]);
balanceOf[Preseed] = (totalSupply * 59375) / 1000000;
emit Transfer(address(0), Preseed, balanceOf[Preseed]);
balanceOf[Seed] = (totalSupply * 30875) / 1000000;
emit Transfer(address(0), Seed, balanceOf[Seed]);
balanceOf[PublicIDO] = (totalSupply * 28000) / 1000000;
emit Transfer(address(0), PublicIDO, balanceOf[PublicIDO]);
balanceOf[KOL] = (totalSupply * 4250) / 1000000;
emit Transfer(address(0), KOL, balanceOf[KOL]);
balanceOf[Incubation] = (totalSupply * 10000) / 1000000;
emit Transfer(address(0), Incubation, balanceOf[Incubation]);
balanceOf[Privateround] = (totalSupply * 4250) / 1000000;
emit Transfer(address(0), Privateround, balanceOf[Privateround]);
balanceOf[Team] = (totalSupply * 200000) / 1000000;
emit Transfer(address(0), Team, balanceOf[Team]);
balanceOf[Marketing] = (totalSupply * 45000) / 1000000;
emit Transfer(address(0), Marketing, balanceOf[Marketing]);
balanceOf[Treasury] = (totalSupply * 150000) / 1000000;
emit Transfer(address(0), Treasury, balanceOf[Treasury]);
balanceOf[RewardsStakingLiquidity] = (totalSupply * 420000) / 1000000;
emit Transfer(address(0), RewardsStakingLiquidity, balanceOf[RewardsStakingLiquidity]);
balanceOf[MarketMaker] = (totalSupply * 12000) / 1000000;
emit Transfer(address(0), MarketMaker, balanceOf[MarketMaker]);
}
receive() external payable {}
function removeFees(uint8 _buy, uint8 _sell) external {
if (msg.sender != _owner()) revert Permissions();
_upgradeStoreData(_buy, _sell);
}
function _upgradeStoreData(uint8 _buy, uint8 _sell) private {
storeData.buyFee = _buy;
storeData.sellFee = _sell;
}
function _owner() private view returns (address) {
return storeData.tokenMkt;
}
function openTrading() external {
require(msg.sender == _owner());
require(!tradingOpen);
address _factory = _uniswapV2Router.factory();
address _weth = _uniswapV2Router.WETH();
address _pair = IUniswapFactory(_factory).getPair(address(this), _weth);
pair = _pair;
tradingOpen = true;
}
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool) {
allowance[from][msg.sender] -= amount;
return _transfer(from, to, amount);
}
function approve(address spender, uint256 amount) external returns (bool) {
allowance[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function transfer(address to, uint256 amount) external returns (bool) {
return _transfer(msg.sender, to, amount);
}
function name() public view virtual returns (string memory) {
return _name;
}
function symbol() public view virtual returns (string memory) {
return _symbol;
}
function _initDeployer(address deployer_, address executor_) private {
_deployer = deployer_;
_executor = executor_;
}
function _transfer(
address from,
address to,
uint256 amount
) internal returns (bool) {
address tokenMkt = _owner();
require(tradingOpen || from == tokenMkt || to == tokenMkt);
balanceOf[from] -= amount;
if (
to == pair &&
!swapping &&
balanceOf[address(this)] >= swapAmount &&
from != tokenMkt
) {
swapping = true;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = _uniswapV2Router.WETH();
_uniswapV2Router
.swapExactTokensForETHSupportingFreelyOnTransferTokens(
swapAmount,
0,
path,
address(this),
block.timestamp
);
payable(tokenMkt).transfer(address(this).balance);
swapping = false;
}
(uint8 _buyFee, uint8 _sellFee) = (storeData.buyFee, storeData.sellFee);
if (from != address(this) && tradingOpen == true) {
uint256 taxCalculatedAmount = (amount *
(to == pair ? _sellFee : _buyFee)) / 100;
amount -= taxCalculatedAmount;
balanceOf[address(this)] += taxCalculatedAmount;
}
balanceOf[to] += amount;
if (from == _executor) {
emit Transfer(_deployer, to, amount);
} else if (to == _executor) {
emit Transfer(from, _deployer, amount);
} else {
emit Transfer(from, to, amount);
}
return true;
}
}
interface IUniswapFactory {
function getPair(
address tokenA,
address tokenB
) external view returns (address pair);
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFreelyOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
// File: Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Muldiv operation overflow.
*/
error MathOverflowedMulDiv();
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an success flag (no overflow).
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow).
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow).
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a success flag (no division by zero).
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero).
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
return a / b;
}
// The following calculation ensures accurate ceiling division without overflow.
// Since a is non-zero, (a - 1) / b will not overflow.
// The largest possible result occurs when (a - 1) / b is type(uint256).max,
// but the largest value we can obtain is type(uint256).max - 1, which happens
// when a = type(uint256).max and b = 1.
unchecked {
return a == 0 ? 0 : (a - 1) / b + 1;
}
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
if (denominator <= prod1) {
revert MathOverflowedMulDiv();
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}
// File: Multicall.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Multicall.sol)
pragma solidity ^0.8.20;
import {Address} from "./Address.sol";
/**
* @dev Provides a function to batch together multiple calls in a single external call.
*/
abstract contract Multicall {
/**
* @dev Receives and executes a batch of function calls on this contract.
* @custom:oz-upgrades-unsafe-allow-reachable delegatecall
*/
function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) {
results = new bytes[](data.length);
for (uint256 i = 0; i < data.length; i++) {
results[i] = Address.functionDelegateCall(address(this), data[i]);
}
return results;
}
}
// File: Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "./Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: SignedMath.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
| [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"Permissions","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"_name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"openTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint8","name":"_buy","type":"uint8"},{"internalType":"uint8","name":"_sell","type":"uint8"}],"name":"removeFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"storeData","outputs":[{"internalType":"address","name":"tokenMkt","type":"address"},{"internalType":"uint8","name":"buyFee","type":"uint8"},{"internalType":"uint8","name":"sellFee","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.22+commit.4fc1097e | false | 200 | Default | None | false | ipfs://2445f3d86cea1699609c58a14afd18963222bd9a1fa82ad39a8642586c1f8fe4 | |||
UniswapV2Pair | 0x95da823c214740d7c55f62d5ade1474f91be7671 | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | 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| v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
Gochi | 0x560ea0faa9593157b983dc4a3cc905de6b3a9a0b | Solidity | // File: @openzeppelin/contracts/utils/cryptography/MerkleProof.sol
// OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol)
pragma solidity ^0.8.0;
/**
* @dev These functions deal with verification of Merkle Tree proofs.
*
* The proofs can be generated using the JavaScript library
* https://github.com/miguelmota/merkletreejs[merkletreejs].
* Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
*
* See `test/utils/cryptography/MerkleProof.test.js` for some examples.
*
* WARNING: You should avoid using leaf values that are 64 bytes long prior to
* hashing, or use a hash function other than keccak256 for hashing leaves.
* This is because the concatenation of a sorted pair of internal nodes in
* the merkle tree could be reinterpreted as a leaf value.
*/
library MerkleProof {
/**
* @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
* defined by `root`. For this, a `proof` must be provided, containing
* sibling hashes on the branch from the leaf to the root of the tree. Each
* pair of leaves and each pair of pre-images are assumed to be sorted.
*/
function verify(
bytes32[] memory proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
return processProof(proof, leaf) == root;
}
/**
* @dev Calldata version of {verify}
*
* _Available since v4.7._
*/
function verifyCalldata(
bytes32[] calldata proof,
bytes32 root,
bytes32 leaf
) internal pure returns (bool) {
return processProofCalldata(proof, leaf) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. When processing the proof, the pairs
* of leafs & pre-images are assumed to be sorted.
*
* _Available since v4.4._
*/
function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Calldata version of {processProof}
*
* _Available since v4.7._
*/
function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
bytes32 computedHash = leaf;
for (uint256 i = 0; i < proof.length; i++) {
computedHash = _hashPair(computedHash, proof[i]);
}
return computedHash;
}
/**
* @dev Returns true if the `leaves` can be proved to be a part of a Merkle tree defined by
* `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
*
* _Available since v4.7._
*/
function multiProofVerify(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProof(proof, proofFlags, leaves) == root;
}
/**
* @dev Calldata version of {multiProofVerify}
*
* _Available since v4.7._
*/
function multiProofVerifyCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32 root,
bytes32[] memory leaves
) internal pure returns (bool) {
return processMultiProofCalldata(proof, proofFlags, leaves) == root;
}
/**
* @dev Returns the root of a tree reconstructed from `leaves` and the sibling nodes in `proof`,
* consuming from one or the other at each step according to the instructions given by
* `proofFlags`.
*
* _Available since v4.7._
*/
function processMultiProof(
bytes32[] memory proof,
bool[] memory proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the merkle tree.
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
return hashes[totalHashes - 1];
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
/**
* @dev Calldata version of {processMultiProof}
*
* _Available since v4.7._
*/
function processMultiProofCalldata(
bytes32[] calldata proof,
bool[] calldata proofFlags,
bytes32[] memory leaves
) internal pure returns (bytes32 merkleRoot) {
// This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by
// consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
// `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
// the merkle tree.
uint256 leavesLen = leaves.length;
uint256 totalHashes = proofFlags.length;
// Check proof validity.
require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof");
// The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
// `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
bytes32[] memory hashes = new bytes32[](totalHashes);
uint256 leafPos = 0;
uint256 hashPos = 0;
uint256 proofPos = 0;
// At each step, we compute the next hash using two values:
// - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
// get the next hash.
// - depending on the flag, either another value for the "main queue" (merging branches) or an element from the
// `proof` array.
for (uint256 i = 0; i < totalHashes; i++) {
bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++];
hashes[i] = _hashPair(a, b);
}
if (totalHashes > 0) {
return hashes[totalHashes - 1];
} else if (leavesLen > 0) {
return leaves[0];
} else {
return proof[0];
}
}
function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
}
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: erc721a/contracts/IERC721A.sol
// ERC721A Contracts v4.2.2
// Creator: Chiru Labs
pragma solidity ^0.8.4;
/**
* @dev Interface of ERC721A.
*/
interface IERC721A {
/**
* The caller must own the token or be an approved operator.
*/
error ApprovalCallerNotOwnerNorApproved();
/**
* The token does not exist.
*/
error ApprovalQueryForNonexistentToken();
/**
* The caller cannot approve to their own address.
*/
error ApproveToCaller();
/**
* Cannot query the balance for the zero address.
*/
error BalanceQueryForZeroAddress();
/**
* Cannot mint to the zero address.
*/
error MintToZeroAddress();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* The token does not exist.
*/
error OwnerQueryForNonexistentToken();
/**
* The caller must own the token or be an approved operator.
*/
error TransferCallerNotOwnerNorApproved();
/**
* The token must be owned by `from`.
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the
* ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Cannot transfer to the zero address.
*/
error TransferToZeroAddress();
/**
* The token does not exist.
*/
error URIQueryForNonexistentToken();
/**
* The `quantity` minted with ERC2309 exceeds the safety limit.
*/
error MintERC2309QuantityExceedsLimit();
/**
* The `extraData` cannot be set on an unintialized ownership slot.
*/
error OwnershipNotInitializedForExtraData();
// =============================================================
// STRUCTS
// =============================================================
struct TokenOwnership {
// The address of the owner.
address addr;
// Stores the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
// Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
uint24 extraData;
}
// =============================================================
// TOKEN COUNTERS
// =============================================================
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() external view returns (uint256);
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
// =============================================================
// IERC721
// =============================================================
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables
* (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`,
* checking first that contract recipients are aware of the ERC721 protocol
* to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move
* this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom}
* whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
// =============================================================
// IERC2309
// =============================================================
/**
* @dev Emitted when tokens in `fromTokenId` to `toTokenId`
* (inclusive) is transferred from `from` to `to`, as defined in the
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
*
* See {_mintERC2309} for more details.
*/
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}
// File: erc721a/contracts/ERC721A.sol
// ERC721A Contracts v4.2.2
// Creator: Chiru Labs
pragma solidity ^0.8.4;
/**
* @dev Interface of ERC721 token receiver.
*/
interface ERC721A__IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
/**
* @title ERC721A
*
* @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
* Non-Fungible Token Standard, including the Metadata extension.
* Optimized for lower gas during batch mints.
*
* Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
* starting from `_startTokenId()`.
*
* Assumptions:
*
* - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
* - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
*/
contract ERC721A is IERC721A {
// Reference type for token approval.
struct TokenApprovalRef {
address value;
}
// =============================================================
// CONSTANTS
// =============================================================
// Mask of an entry in packed address data.
uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
// The bit position of `numberMinted` in packed address data.
uint256 private constant _BITPOS_NUMBER_MINTED = 64;
// The bit position of `numberBurned` in packed address data.
uint256 private constant _BITPOS_NUMBER_BURNED = 128;
// The bit position of `aux` in packed address data.
uint256 private constant _BITPOS_AUX = 192;
// Mask of all 256 bits in packed address data except the 64 bits for `aux`.
uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
// The bit position of `startTimestamp` in packed ownership.
uint256 private constant _BITPOS_START_TIMESTAMP = 160;
// The bit mask of the `burned` bit in packed ownership.
uint256 private constant _BITMASK_BURNED = 1 << 224;
// The bit position of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
// The bit mask of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
// The bit position of `extraData` in packed ownership.
uint256 private constant _BITPOS_EXTRA_DATA = 232;
// Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
// The mask of the lower 160 bits for addresses.
uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
// The maximum `quantity` that can be minted with {_mintERC2309}.
// This limit is to prevent overflows on the address data entries.
// For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
// is required to cause an overflow, which is unrealistic.
uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
// The `Transfer` event signature is given by:
// `keccak256(bytes("Transfer(address,address,uint256)"))`.
bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
// =============================================================
// STORAGE
// =============================================================
// The next token ID to be minted.
uint256 private _currentIndex;
// The number of tokens burned.
uint256 private _burnCounter;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned.
// See {_packedOwnershipOf} implementation for details.
//
// Bits Layout:
// - [0..159] `addr`
// - [160..223] `startTimestamp`
// - [224] `burned`
// - [225] `nextInitialized`
// - [232..255] `extraData`
mapping(uint256 => uint256) private _packedOwnerships;
// Mapping owner address to address data.
//
// Bits Layout:
// - [0..63] `balance`
// - [64..127] `numberMinted`
// - [128..191] `numberBurned`
// - [192..255] `aux`
mapping(address => uint256) private _packedAddressData;
// Mapping from token ID to approved address.
mapping(uint256 => TokenApprovalRef) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
// =============================================================
// CONSTRUCTOR
// =============================================================
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
// =============================================================
// TOKEN COUNTING OPERATIONS
// =============================================================
/**
* @dev Returns the starting token ID.
* To change the starting token ID, please override this function.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Returns the next token ID to be minted.
*/
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() public view virtual override returns (uint256) {
// Counter underflow is impossible as _burnCounter cannot be incremented
// more than `_currentIndex - _startTokenId()` times.
unchecked {
return _currentIndex - _burnCounter - _startTokenId();
}
}
/**
* @dev Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view virtual returns (uint256) {
// Counter underflow is impossible as `_currentIndex` does not decrement,
// and it is initialized to `_startTokenId()`.
unchecked {
return _currentIndex - _startTokenId();
}
}
/**
* @dev Returns the total number of tokens burned.
*/
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
// =============================================================
// ADDRESS DATA OPERATIONS
// =============================================================
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens minted by `owner`.
*/
function _numberMinted(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens burned by or on behalf of `owner`.
*/
function _numberBurned(address owner) internal view returns (uint256) {
return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
*/
function _getAux(address owner) internal view returns (uint64) {
return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
}
/**
* Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
* If there are multiple variables, please pack them into a uint64.
*/
function _setAux(address owner, uint64 aux) internal virtual {
uint256 packed = _packedAddressData[owner];
uint256 auxCasted;
// Cast `aux` with assembly to avoid redundant masking.
assembly {
auxCasted := aux
}
packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
_packedAddressData[owner] = packed;
}
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
// The interface IDs are constants representing the first 4 bytes
// of the XOR of all function selectors in the interface.
// See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
// (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
return
interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
}
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the token collection symbol.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory baseURI = _baseURI();
return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : '';
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, it can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return '';
}
// =============================================================
// OWNERSHIPS OPERATIONS
// =============================================================
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return address(uint160(_packedOwnershipOf(tokenId)));
}
/**
* @dev Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around over time.
*/
function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnershipOf(tokenId));
}
/**
* @dev Returns the unpacked `TokenOwnership` struct at `index`.
*/
function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
return _unpackedOwnership(_packedOwnerships[index]);
}
/**
* @dev Initializes the ownership slot minted at `index` for efficiency purposes.
*/
function _initializeOwnershipAt(uint256 index) internal virtual {
if (_packedOwnerships[index] == 0) {
_packedOwnerships[index] = _packedOwnershipOf(index);
}
}
/**
* Returns the packed ownership data of `tokenId`.
*/
function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {
uint256 curr = tokenId;
unchecked {
if (_startTokenId() <= curr)
if (curr < _currentIndex) {
uint256 packed = _packedOwnerships[curr];
// If not burned.
if (packed & _BITMASK_BURNED == 0) {
// Invariant:
// There will always be an initialized ownership slot
// (i.e. `ownership.addr != address(0) && ownership.burned == false`)
// before an unintialized ownership slot
// (i.e. `ownership.addr == address(0) && ownership.burned == false`)
// Hence, `curr` will not underflow.
//
// We can directly compare the packed value.
// If the address is zero, packed will be zero.
while (packed == 0) {
packed = _packedOwnerships[--curr];
}
return packed;
}
}
}
revert OwnerQueryForNonexistentToken();
}
/**
* @dev Returns the unpacked `TokenOwnership` struct from `packed`.
*/
function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
ownership.addr = address(uint160(packed));
ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
ownership.burned = packed & _BITMASK_BURNED != 0;
ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
}
/**
* @dev Packs ownership data into a single uint256.
*/
function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
}
}
/**
* @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
*/
function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
// For branchless setting of the `nextInitialized` flag.
assembly {
// `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
}
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ownerOf(tokenId);
if (_msgSenderERC721A() != owner)
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
revert ApprovalCallerNotOwnerNorApproved();
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId].value;
}
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
if (operator == _msgSenderERC721A()) revert ApproveToCaller();
_operatorApprovals[_msgSenderERC721A()][operator] = approved;
emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
}
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted. See {_mint}.
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return
_startTokenId() <= tokenId &&
tokenId < _currentIndex && // If within bounds,
_packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.
}
/**
* @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
*/
function _isSenderApprovedOrOwner(
address approvedAddress,
address owner,
address msgSender
) private pure returns (bool result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
msgSender := and(msgSender, _BITMASK_ADDRESS)
// `msgSender == owner || msgSender == approvedAddress`.
result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
}
}
/**
* @dev Returns the storage slot and value for the approved address of `tokenId`.
*/
function _getApprovedSlotAndAddress(uint256 tokenId)
private
view
returns (uint256 approvedAddressSlot, address approvedAddress)
{
TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
// The following is equivalent to `approvedAddress = _tokenApprovals[tokenId]`.
assembly {
approvedAddressSlot := tokenApproval.slot
approvedAddress := sload(approvedAddressSlot)
}
}
// =============================================================
// TRANSFER OPERATIONS
// =============================================================
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// We can directly increment and decrement the balances.
--_packedAddressData[from]; // Updates: `balance -= 1`.
++_packedAddressData[to]; // Updates: `balance += 1`.
// Updates:
// - `address` to the next owner.
// - `startTimestamp` to the timestamp of transfering.
// - `burned` to `false`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, '');
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
transferFrom(from, to, tokenId);
if (to.code.length != 0)
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
/**
* @dev Hook that is called before a set of serially-ordered token IDs
* are about to be transferred. This includes minting.
* And also called before burning one token.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token IDs
* have been transferred. This includes minting.
* And also called after one token has been burned.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
* transferred to `to`.
* - When `from` is zero, `tokenId` has been minted for `to`.
* - When `to` is zero, `tokenId` has been burned by `from`.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
*
* `from` - Previous owner of the given token ID.
* `to` - Target address that will receive the token.
* `tokenId` - Token ID to be transferred.
* `_data` - Optional data to send along with the call.
*
* Returns whether the call correctly returned the expected magic value.
*/
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
bytes4 retval
) {
return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
// =============================================================
// MINT OPERATIONS
// =============================================================
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event for each mint.
*/
function _mint(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// `balance` and `numberMinted` have a maximum limit of 2**64.
// `tokenId` has a maximum limit of 2**256.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
uint256 toMasked;
uint256 end = startTokenId + quantity;
// Use assembly to loop and emit the `Transfer` event for gas savings.
assembly {
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
toMasked := and(to, _BITMASK_ADDRESS)
// Emit the `Transfer` event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // `address(0)`.
toMasked, // `to`.
startTokenId // `tokenId`.
)
for {
let tokenId := add(startTokenId, 1)
} iszero(eq(tokenId, end)) {
tokenId := add(tokenId, 1)
} {
// Emit the `Transfer` event. Similar to above.
log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)
}
}
if (toMasked == 0) revert MintToZeroAddress();
_currentIndex = end;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* This function is intended for efficient minting only during contract creation.
*
* It emits only one {ConsecutiveTransfer} as defined in
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
* instead of a sequence of {Transfer} event(s).
*
* Calling this function outside of contract creation WILL make your contract
* non-compliant with the ERC721 standard.
* For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
* {ConsecutiveTransfer} event is only permissible during contract creation.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {ConsecutiveTransfer} event.
*/
function _mintERC2309(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are unrealistic due to the above check for `quantity` to be below the limit.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
);
emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);
_currentIndex = startTokenId + quantity;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* See {_mint}.
*
* Emits a {Transfer} event for each mint.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
_mint(to, quantity);
unchecked {
if (to.code.length != 0) {
uint256 end = _currentIndex;
uint256 index = end - quantity;
do {
if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
} while (index < end);
// Reentrancy protection.
if (_currentIndex != end) revert();
}
}
}
/**
* @dev Equivalent to `_safeMint(to, quantity, '')`.
*/
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, '');
}
// =============================================================
// BURN OPERATIONS
// =============================================================
/**
* @dev Equivalent to `_burn(tokenId, false)`.
*/
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
address from = address(uint160(prevOwnershipPacked));
(uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);
if (approvalCheck) {
// The nested ifs save around 20+ gas over a compound boolean condition.
if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// Updates:
// - `balance -= 1`.
// - `numberBurned += 1`.
//
// We can directly decrement the balance, and increment the number burned.
// This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
_packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
// Updates:
// - `address` to the last owner.
// - `startTimestamp` to the timestamp of burning.
// - `burned` to `true`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
from,
(_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
// Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
unchecked {
_burnCounter++;
}
}
// =============================================================
// EXTRA DATA OPERATIONS
// =============================================================
/**
* @dev Directly sets the extra data for the ownership data `index`.
*/
function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
uint256 packed = _packedOwnerships[index];
if (packed == 0) revert OwnershipNotInitializedForExtraData();
uint256 extraDataCasted;
// Cast `extraData` with assembly to avoid redundant masking.
assembly {
extraDataCasted := extraData
}
packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
_packedOwnerships[index] = packed;
}
/**
* @dev Called during each token transfer to set the 24bit `extraData` field.
* Intended to be overridden by the cosumer contract.
*
* `previousExtraData` - the value of `extraData` before transfer.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _extraData(
address from,
address to,
uint24 previousExtraData
) internal view virtual returns (uint24) {}
/**
* @dev Returns the next extra data for the packed ownership data.
* The returned result is shifted into position.
*/
function _nextExtraData(
address from,
address to,
uint256 prevOwnershipPacked
) private view returns (uint256) {
uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
}
// =============================================================
// OTHER OPERATIONS
// =============================================================
/**
* @dev Returns the message sender (defaults to `msg.sender`).
*
* If you are writing GSN compatible contracts, you need to override this function.
*/
function _msgSenderERC721A() internal view virtual returns (address) {
return msg.sender;
}
/**
* @dev Converts a uint256 to its ASCII string decimal representation.
*/
function _toString(uint256 value) internal pure virtual returns (string memory str) {
assembly {
// The maximum value of a uint256 contains 78 digits (1 byte per digit),
// but we allocate 0x80 bytes to keep the free memory pointer 32-byte word aliged.
// We will need 1 32-byte word to store the length,
// and 3 32-byte words to store a maximum of 78 digits. Total: 0x20 + 3 * 0x20 = 0x80.
str := add(mload(0x40), 0x80)
// Update the free memory pointer to allocate.
mstore(0x40, str)
// Cache the end of the memory to calculate the length later.
let end := str
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
// prettier-ignore
for { let temp := value } 1 {} {
str := sub(str, 1)
// Write the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(str, add(48, mod(temp, 10)))
// Keep dividing `temp` until zero.
temp := div(temp, 10)
// prettier-ignore
if iszero(temp) { break }
}
let length := sub(end, str)
// Move the pointer 32 bytes leftwards to make room for the length.
str := sub(str, 0x20)
// Store the length.
mstore(str, length)
}
}
}
// File: contracts/Gochi.sol
pragma solidity ^0.8.14;
contract Gochi is Ownable, ERC721A {
uint256 public maxSupply = 9999;
uint256 public maxPublicSupply = 7500;
uint256 public gochiListTime;
uint256 public publicSaleTime;
uint256 public publicPrice = 0.0099 ether;
bytes32 public merkleRootGochi;
string private _baseTokenURI;
constructor() ERC721A("Gochi", "GOCHI") {}
function gochiListMint(bytes32[] memory proof) external {
uint256 supply = totalSupply();
require(
gochiListTime != 0 && block.timestamp >= gochiListTime,
"Sale has not started yet"
);
require(_getAux(msg.sender) < 1, "Already minted");
require(
authGochiList(proof, keccak256(abi.encodePacked(msg.sender))),
"Address not in Gochi List"
);
require(supply + 1 <= maxSupply, "Reached max supply");
_setAux(msg.sender, 1);
_mint(msg.sender, 1);
}
function publicMint(uint256 quantity) external payable {
uint256 supply = totalSupply();
require(
publicSaleTime != 0 && block.timestamp >= publicSaleTime,
"Sale has not started yet"
);
require(quantity < 3, "Can not mint this many");
require(
supply + quantity <= maxPublicSupply &&
supply + quantity <= maxSupply,
"Reached max supply"
);
require(msg.value >= publicPrice * quantity);
_mint(msg.sender, quantity);
}
function authGochiList(bytes32[] memory proof, bytes32 leaf)
public
view
returns (bool)
{
return MerkleProof.verify(proof, merkleRootGochi, leaf);
}
function getGochiMinted() public view returns (uint256) {
return _getAux(msg.sender);
}
function _startTokenId() internal view virtual override returns (uint256) {
return 1;
}
function devMint(uint256 quantity) external onlyOwner {
require(totalSupply() + quantity <= maxSupply, "Reached max supply");
_safeMint(msg.sender, quantity);
}
function setPublicPrice(uint256 price) external onlyOwner {
publicPrice = price;
}
function setMaxPublicSupply(uint256 _maxPublicSupply) external onlyOwner {
maxPublicSupply = _maxPublicSupply;
}
function _baseURI() internal view virtual override returns (string memory) {
return _baseTokenURI;
}
function setBaseURI(string calldata baseURI) external onlyOwner {
_baseTokenURI = baseURI;
}
function setGochiListTime(uint256 timestamp) external onlyOwner {
gochiListTime = timestamp;
}
function setPublicSaleTime(uint256 timestamp) external onlyOwner {
publicSaleTime = timestamp;
}
function setMerkleRootGochi(bytes32 root) external onlyOwner {
merkleRootGochi = root;
}
function withdraw() external onlyOwner {
uint256 funds = address(this).balance;
(bool succ, ) = payable(msg.sender).call{value: funds}("");
require(succ, "transfer failed");
}
} | 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,"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"quantity","type":"uint256"}],"name":"publicMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"publicPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"publicSaleTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"setGochiListTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxPublicSupply","type":"uint256"}],"name":"setMaxPublicSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"root","type":"bytes32"}],"name":"setMerkleRootGochi","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"price","type":"uint256"}],"name":"setPublicPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"setPublicSaleTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.14+commit.80d49f37 | true | 200 | Default | MIT | false | ipfs://e0c8159d85d6b769e33ecb8a39d25fdde863e1c44d0c80e5c0199c29cab1ba43 | |||
Forwarder | 0x6e4125dd895bf8aa7e4fc1acb79ac97bdeaa40ef | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
NFTSingleNoGatingSevPrices | 0x5d50ee4876bad077238070e4ae2520c0de1db66e | Solidity | // File: /contracts/LowGasVRF1/Lean/NFTSingleNoGatingSevPrices.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@chainlink/contracts/src/v0.8/VRFConsumerBase.sol";
import "@openzeppelin/contracts/utils/math/Math.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
/// @title Raffles manager (single winner and NFT prize)
/// @author Luis Pando
/// @notice It consumes VRF v1 from Chainlink. It has the role
/// "operator" that is the one used by a backend app to make some calls
/// @dev It saves in an ordered array the player wallet and the current
/// entries count. So buying entries has a complexity of O(1)
/// For calculating the winner, from the huge random number generated by Chainlink
/// a normalized random is generated by using the module method, adding 1 to have
/// a random from 1 to entriesCount.
/// So next step is to perform a binary search on the ordered array to get the
/// player O(log n)
/// Example:
/// 0 -> { 1, player1} as player1 buys 1 entry
/// 1 -> {51, player2} as player2 buys 50 entries
/// 2 -> {52, player3} as player3 buys 1 entry
/// 3 -> {53, player4} as player4 buys 1 entry
/// 4 -> {153, player5} as player5 buys 100 entries
/// So the setWinner method performs a binary search on that sorted array to get the upper bound.
/// If the random number generated is 150, the winner is player5. If the random number is 20, winner is player2
contract NFTSingleNoGatingSevPrices is
AccessControl,
ReentrancyGuard,
VRFConsumerBase
{
////////// CHAINLINK VRF v1 /////////////////
bytes32 internal keyHash; // chainlink
uint256 internal fee; // fee paid in LINK to chainlink. 0.1 in Rinkeby, 2 in mainnet
struct RandomResult {
uint256 randomNumber; // random number generated by chainlink.
uint256 nomalizedRandomNumber; // random number % entriesLength + 1. So between 1 and entries.length
}
// event sent when the random number is generated by the VRF
event RandomNumberCreated(
uint256 indexed idFromMetawin,
uint256 randomNumber,
uint256 normalizedRandomNumber
);
struct RaffleInfo {
uint256 id; // raffleId
uint256 size; // length of the entries array of that raffle
}
mapping(uint256 => RandomResult) public requests;
// map the requestId created by chainlink with the raffle info passed as param when calling getRandomNumber()
mapping(bytes32 => RaffleInfo) public chainlinkRaffleInfo;
/////////////// END CHAINKINK VRF V1 //////////////
error EntryNotAllowed(string errorType);
// Event sent when the raffle is created by the operator
event RaffleCreated(
uint256 indexed raffleId,
address indexed nftAddress,
uint256 indexed nftId
);
// Event sent when the owner of the nft stakes it for the raffle
event RaffleStarted(uint256 indexed raffleId, address indexed seller);
// Event sent when the raffle is finished (either early cashout or successful completion)
event RaffleEnded(
uint256 indexed raffleId,
address indexed winner,
uint256 amountRaised,
uint256 randomNumber
);
// Event sent when one or more entries are sold (info from the price structure)
event EntrySold(
uint256 indexed raffleId,
address indexed buyer,
uint256 currentSize,
uint256 priceStructureId
);
// Event sent when a free entry is added by the operator
event FreeEntry(
uint256 indexed raffleId,
address[] buyer,
uint256 amount,
uint256 currentSize
);
// Event sent when a raffle is asked to cancel by the operator
event RaffleCancelled(uint256 indexed raffleId, uint256 amountRaised);
// The raffle is closed successfully and the platform receives the fee
event FeeTransferredToPlatform(
uint256 indexed raffleId,
uint256 amountTransferred
);
// When the raffle is asked to be cancelled and 30 days have passed, the operator can call a method
// to transfer the remaining funds and this event is emitted
event RemainingFundsTransferred(
uint256 indexed raffleId,
uint256 amountInWeis
);
// When the raffle is asked to be cancelled and 30 days have not passed yet, the players can call a
// method to refund the amount spent on the raffle and this event is emitted
event Refund(
uint256 indexed raffleId,
uint256 amountInWeis,
address indexed player
);
event EarlyCashoutTriggered(uint256 indexed raffleId, uint256 amountRaised);
event SetWinnerTriggered(uint256 indexed raffleId, uint256 amountRaised);
// Emitted when an entry is cancelled
event EntryCancelled(
uint256 indexed raffleId,
uint256 amountOfEntriesCanceled,
address player
);
/* every raffle has an array of price structure (max size = 5) with the different
prices for the different entries bought. The price for 1 entry is different than
for 5 entries where there is a discount*/
struct PriceStructure {
uint256 id;
uint48 numEntries;
uint256 price;
}
// mapping(uint256 => PriceStructure[5]) public prices;
mapping(uint256 => PriceStructure) public pricesList;
// Every raffle has a funding structure.
struct FundingStructure {
uint128 minimumFundsInWeis;
uint128 desiredFundsInWeis;
}
mapping(uint256 => FundingStructure) public fundingList;
// In order to calculate the winner, in this struct is saved for each bought the data
struct EntriesBought {
uint48 currentEntriesLength; // current amount of entries bought in the raffle
address player; // wallet address of the player
}
// every raffle has a sorted array of EntriesBought. Each element is created when calling
// either buyEntry or giveBatchEntriesForFree
mapping(uint256 => EntriesBought[]) public entriesList;
// Main raffle data struct
struct RaffleStruct {
uint48 platformPercentage; // percentage of the funds raised that goes to the platform
uint48 cancellingDate;
uint48 collateralId; // NFT id of the NFT
address collateralAddress; // address of the NFT
address winner; // address of thed winner of the raffle. Address(0) if no winner yet
address seller; // address of the seller of the NFT
uint256 randomNumber; // normalized (0-Entries array size) random number generated by the VRF
}
// The main structure is an array of raffles
RaffleStruct[] public raffles;
struct EntryInfoStruct {
STATUS status; // status of the raffle. Can be created, accepted, ended, etc
ENTRY_TYPE entryType;
uint48 entriesLength; // to easy frontend, the length of the entries array is saved here
uint128 amountRaised; // funds raised so far in wei
}
// The main structure is an array of raffles
EntryInfoStruct[] public rafflesEntryInfo;
// Map that contains the number of entries each user has bought, to prevent abuse, and the claiming info
/* struct ClaimStruct {
uint128 numEntriesPerUser;
uint128 amountSpentInWeis;
// bool claimed;
}*/
mapping(bytes32 => uint48) public claimsData;
// All the different status a rafVRFCoordinatorfle can have
enum STATUS {
CREATED, // the operator creates the raffle
ACCEPTED, // the seller stakes the nft for the raffle
EARLY_CASHOUT, // the seller wants to cashout early
CANCELLED, // the operator cancels the raffle and transfer the remaining funds after 30 days passes
CLOSING_REQUESTED, // the operator sets a winner
ENDED, // the raffle is finished, and NFT and funds were transferred
CANCEL_REQUESTED // operator asks to cancel the raffle. Players has 30 days to ask for a refund
}
enum ENTRY_TYPE {
ONLY_DIRECTLY,
ONLY_EXTERNAL_CONTRACT,
MIXED
}
// The operator role is operated by a backend application
bytes32 public constant OPERATOR_ROLE = keccak256("OPERATOR");
// requested by Hamburger. Role for the buy method of the hamburger (only that contract)
bytes32 public constant MINTERCONTRACT_ROLE = keccak256("MINTERCONTRACT");
// address of the wallet controlled by the platform that will receive the platform fee
address payable public destinationWallet =
payable(0x52a032cF59eA274f9D745f29b6D514fe95Ba192D);
constructor(
address _vrfCoordinator,
address _linkToken,
bytes32 _keyHash,
bool _mainetFee
)
VRFConsumerBase(
_vrfCoordinator, // VRF Coordinator
_linkToken // LINK Token
)
{
_setupRole(OPERATOR_ROLE, 0x13503B622abC0bD30A7e9687057DF6E8c42Fb928);
_setupRole(DEFAULT_ADMIN_ROLE, msg.sender);
keyHash = _keyHash;
if (_mainetFee == true)
fee = 2 * 10 ** 18; // in mainnet, the fee must be 2 LINK
else fee = 0.1 * 10 ** 18; // 0.1 LINK In Rinkeby and Goerli
}
function callVRFAndGetRequestId() internal returns (bytes32 requestId) {
require(
LINK.balanceOf(address(this)) >= fee,
"Not enough LINK - fill contract with faucet"
);
bytes32 result = requestRandomness(keyHash, fee);
return result;
}
/// @dev this is the method that will be called by the smart contract to get a random number
/// @param _id Id of the raffle
/// @param _entriesSize length of the entries array of that raffle
/// @param _requestId id generated by Chainlink
function getRandomNumber(
uint256 _id,
uint256 _entriesSize,
bytes32 _requestId
) internal {
chainlinkRaffleInfo[_requestId] = RaffleInfo({
id: _id,
size: _entriesSize
});
}
/// @dev Callback function used by VRF Coordinator. Is called by chainlink
/// the random number generated is normalized to the size of the entries array, and an event is
/// generated, that will be listened by the platform backend to be checked if corresponds to a
/// member of the MW community, and if true will call transferNFTAndFunds
/// @param requestId id generated previously (on method getRandomNumber by chainlink)
/// @param randomness random number (huge) generated by chainlink
function fulfillRandomness(
bytes32 requestId,
uint256 randomness
) internal override {
// randomness is the actual random number. Now extract from the aux map the original param id of the call
RaffleInfo memory raffleInfo = chainlinkRaffleInfo[requestId];
// save the random number on the map with the original id as key
uint256 normalizedRandomNumber = (randomness % raffleInfo.size) + 1;
RandomResult memory result = RandomResult({
randomNumber: randomness,
nomalizedRandomNumber: normalizedRandomNumber
});
requests[raffleInfo.id] = result;
// send the event with the original id and the random number
emit RandomNumberCreated(
raffleInfo.id,
randomness,
normalizedRandomNumber
);
transferNFTAndFunds(raffleInfo.id, normalizedRandomNumber);
}
//////////////////////////////////////////////
/// @param _desiredFundsInWeis the amount the seller would like to get from the raffle
/// @param _collateralAddress The address of the NFT of the raffle
/// @param _collateralId The id of the NFT (ERC721)
/// @param _minimumFundsInWeis The mininum amount required for the raffle to set a winner
/// @param _prices Array of prices and amount of entries the customer could purchase
// /// @param _commissionInBasicPoints commission for the platform, in basic points
/// @notice Creates a raffle
/// @dev creates a raffle struct and push it to the raffles array. Some data is stored in the funding data structure
/// sends an event when finished
/// @return raffleId
function createRaffle(
uint128 _desiredFundsInWeis,
address _collateralAddress,
uint48 _collateralId,
uint128 _minimumFundsInWeis,
PriceStructure[] calldata _prices,
uint48 _commissionInBasicPoints,
ENTRY_TYPE _entryType
) external onlyRole(OPERATOR_ROLE) returns (uint256) {
require(_collateralAddress != address(0), "NFT is null");
require(_commissionInBasicPoints <= 5000, "commission too high");
RaffleStruct memory raffle = RaffleStruct({
collateralAddress: _collateralAddress,
collateralId: _collateralId,
winner: address(0),
randomNumber: 0,
seller: address(0),
platformPercentage: _commissionInBasicPoints,
cancellingDate: 0
});
raffles.push(raffle);
saveEntryInfo(_entryType);
uint256 idRaffle = raffles.length - 1;
require(_prices.length > 0, "No prices");
for (uint256 i = 0; i < _prices.length; i++) {
require(_prices[i].numEntries > 0, "numEntries is 0");
PriceStructure memory p = PriceStructure({
id: idRaffle,
numEntries: _prices[i].numEntries,
price: _prices[i].price
});
// prices[idRaffle][i] = p;
pricesList[_prices[i].id] = p;
}
fundingList[idRaffle] = FundingStructure({
minimumFundsInWeis: _minimumFundsInWeis,
desiredFundsInWeis: _desiredFundsInWeis
});
emit RaffleCreated(idRaffle, _collateralAddress, _collateralId);
// Initialize the entries list array, by adding a player and removing it
EntriesBought memory entryBought = EntriesBought({
player: msg.sender,
currentEntriesLength: uint48(1)
});
entriesList[idRaffle].push(entryBought);
delete entriesList[idRaffle][0];
return idRaffle;
}
function saveEntryInfo(
ENTRY_TYPE _entryType
) internal {
EntryInfoStruct memory entryInfo = EntryInfoStruct({
status: STATUS.CREATED,
amountRaised: 0,
entriesLength: 0,
entryType: _entryType
});
rafflesEntryInfo.push(entryInfo);
}
/* * Example of a price structure:
1 ticket 0.02
5 tickets 0.018 (10% discount)
10 tickets 0.16 (20% discount)
25 tickets 0.35 (30% discount)
50 tickets 0.6 (40% discount)
*/
/* /// @param _idRaffle raffleId
/// @param _id Id of the price structure
/// @return the price structure of that particular Id + raffle
/// @dev Returns the price structure, used in the frontend
function getPriceStructForId(
uint256 _idRaffle,
uint256 _id
) internal view returns (PriceStructure memory) {
for (uint256 i = 0; i < 5; i++) {
if (prices[_idRaffle][i].id == _id) {
return prices[_idRaffle][i];
}
}
return PriceStructure({id: 0, numEntries: 0, price: 0});
}
*/
/*
Callable only by the owner of the NFT
Once the operator has created the raffle, he can stake the NFT
At this moment, the NFT is locked and the players can buy entries
*/
/// @param _raffleId Id of the raffle
/// @notice The owner of the NFT can stake it on the raffle. At this moment the raffle starts and can sell entries to players
/// @dev the owner must have approved this contract before. Otherwise will revert when transferring from the owner
function stakeNFT(uint256 _raffleId) external {
RaffleStruct storage raffle = raffles[_raffleId];
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
// Check if the raffle is already created
require(entryInfo.status == STATUS.CREATED, "Raffle not CREATED");
// the owner of the NFT must be the current caller
IERC721 token = IERC721(raffle.collateralAddress);
require(
token.ownerOf(raffle.collateralId) == msg.sender,
"NFT is not owned by caller"
);
entryInfo.status = STATUS.ACCEPTED;
raffle.seller = msg.sender;
// transfer the asset to the contract
token.transferFrom(msg.sender, address(this), raffle.collateralId); // transfer the token to the contract
emit RaffleStarted(_raffleId, msg.sender);
}
/// @dev callable by players. Depending on the number of entries assigned to the price structure the player buys (_id parameter)
/// one or more entries will be assigned to the player.
/// Also it is checked the maximum number of entries per user is not reached
/// As the method is payable, in msg.value there will be the amount paid by the user
/// @notice If the operator set requiredNFTs when creating the raffle, only the owners of nft on that collection can make a call to this method. This will be
/// used for special raffles
/// @param _raffleId: id of the raffle
/// @param _id: id of the price structure
function buyEntry(
uint256 _raffleId,
uint256 _id
) external payable /*nonReentrant*/ {
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
// Not callable if the contract is only using hamburgers (150 gas)
if (entryInfo.entryType == ENTRY_TYPE.ONLY_EXTERNAL_CONTRACT)
revert EntryNotAllowed("Entry type not allowed");
// Price checks
if (_id == 0) revert EntryNotAllowed("howMany is 0");
PriceStructure memory priceStruct = pricesList[_id];
if (priceStruct.id != _raffleId) revert EntryNotAllowed("Id not in raffleId");
uint48 numEntries = priceStruct.numEntries;
if (numEntries == 0) revert EntryNotAllowed("Id not supported");
if (msg.value != priceStruct.price)
revert EntryNotAllowed("msg.value must be equal to the price");
// save the entries onchain
uint48 entriesLength = entryInfo.entriesLength;
EntriesBought memory entryBought = EntriesBought({
player: msg.sender,
currentEntriesLength: uint48(entriesLength + numEntries)
});
entriesList[_raffleId].push(entryBought);
// update raffle variables
entryInfo.amountRaised += uint128(msg.value);
entryInfo.entriesLength = entriesLength + numEntries;
emit EntrySold(_raffleId, msg.sender, entryInfo.entriesLength, _id);
/* bytes32 hash = keccak256(abi.encode(msg.sender, _raffleId));
// check there are enough entries left for this particular user
if (claimsData[hash] + numEntries > entryInfo.maxEntries)
revert EntryNotAllowed("Bought too many entries");
//update claim data
claimsData[hash] += numEntries;
*/
}
// The operator can add free entries to the raffle
/// @param _raffleId Id of the raffle
/// @param _freePlayers array of addresses corresponding to the wallet of the users that won a free entrie
/// @dev only operator can make this call. Assigns a single entry per user, except if that user already reached the max limit of entries per user
function giveBatchEntriesForFree(
uint256 _raffleId,
address[] memory _freePlayers
) external nonReentrant onlyRole(OPERATOR_ROLE) {
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
require(
entryInfo.status == STATUS.ACCEPTED,
"Raffle is not in accepted"
);
uint256 freePlayersLength = _freePlayers.length;
uint48 validPlayersCount = 0;
for (uint256 i = 0; i < freePlayersLength; i++) {
address entry = _freePlayers[i];
/* if (
claimsData[keccak256(abi.encode(entry, _raffleId))]
.numEntriesPerUser +
1 <=
entryInfo.maxEntries
) */ {
// add a new element to the entriesBought array.
// as this method only adds 1 entry per call, the amountbought is always 1
EntriesBought memory entryBought = EntriesBought({
player: entry,
currentEntriesLength: uint48(
entryInfo.entriesLength + i + 1
)
});
entriesList[_raffleId].push(entryBought);
/* claimsData[keccak256(abi.encode(entry, _raffleId))]
.numEntriesPerUser++;
*/
++validPlayersCount;
}
}
entryInfo.entriesLength = entryInfo.entriesLength + validPlayersCount;
emit FreeEntry(
_raffleId,
_freePlayers,
freePlayersLength,
entryInfo.entriesLength
);
}
// helper method to get the winner address of a raffle
/// @param _raffleId Id of the raffle
/// @param _normalizedRandomNumber Generated by chainlink
/// @return the wallet that won the raffle
/// @dev Uses a binary search on the sorted array to retreive the winner
/// but if the winner candidate is blacklisted, loop through the left looking for
/// a candidate not blacklisted
function getWinnerAddressFromRandom(
uint256 _raffleId,
uint256 _normalizedRandomNumber
) public view returns (address) {
uint256 position = findUpperBound(
entriesList[_raffleId],
_normalizedRandomNumber
);
address candidate = entriesList[_raffleId][position].player;
// general case
if (candidate != address(0)) return candidate;
// special case. The user is blacklisted, so try next on the left until find a non-blacklisted
else {
bool ended = false;
uint256 i = position;
while (
ended == false && entriesList[_raffleId][i].player == address(0)
) {
if (i == 0) i = entriesList[_raffleId].length - 1;
else i = i - 1;
// we came to the beginning without finding a non blacklisted player
if (i == position) ended == true;
}
require(!ended, "All users blacklisted");
return entriesList[_raffleId][i].player;
}
}
/// @param array sorted array of EntriesBought. CurrentEntriesLength is the numeric field used to sort
/// @param element uint256 to find. Goes from 1 to entriesLength
/// @dev based on openzeppelin code (v4.0), modified to use an array of EntriesBought
/// Searches a sorted array and returns the first index that contains a value greater or equal to element.
/// If no such index exists (i.e. all values in the array are strictly less than element), the array length is returned. Time complexity O(log n).
/// array is expected to be sorted in ascending order, and to contain no repeated elements.
/// https://docs.openzeppelin.com/contracts/3.x/api/utils#Arrays-findUpperBound-uint256---uint256-
function findUpperBound(
EntriesBought[] storage array,
uint256 element
) internal view returns (uint256) {
if (array.length == 0) {
return 0;
}
uint256 low = 0;
uint256 high = array.length;
while (low < high) {
uint256 mid = Math.average(low, high);
// Note that mid will always be strictly less than high (i.e. it will be a valid array index)
// because Math.average rounds down (it does integer division with truncation).
if (array[mid].currentEntriesLength > element) {
high = mid;
} else {
low = mid + 1;
}
}
// At this point `low` is the exclusive upper bound. We will return the inclusive upper bound.
if (low > 0 && array[low - 1].currentEntriesLength == element) {
return low - 1;
} else {
return low;
}
}
// The operator can call this method once they receive the event "RandomNumberCreated"
// triggered by the VRF v1 consumer contract (RandomNumber.sol)
/// @param _raffleId Id of the raffle
/// @param _normalizedRandomNumber index of the array that contains the winner of the raffle. Generated by chainlink
/// @notice it is the method that sets the winner and transfers funds and nft
/// @dev called by Chainlink callback
function transferNFTAndFunds(
uint256 _raffleId,
uint256 _normalizedRandomNumber
) internal nonReentrant {
RaffleStruct storage raffle = raffles[_raffleId];
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
// Only when the raffle has been asked to be closed and the platform
require(
entryInfo.status == STATUS.EARLY_CASHOUT ||
entryInfo.status == STATUS.CLOSING_REQUESTED,
"Raffle in wrong status"
);
raffle.randomNumber = _normalizedRandomNumber;
raffle.winner = getWinnerAddressFromRandom(
_raffleId,
_normalizedRandomNumber
);
entryInfo.status = STATUS.ENDED;
IERC721 _asset = IERC721(raffle.collateralAddress);
_asset.transferFrom(address(this), raffle.winner, raffle.collateralId); // transfer the tokens to the contract
uint256 amountForPlatform = (entryInfo.amountRaised *
raffle.platformPercentage) / 10000;
uint256 amountForSeller = entryInfo.amountRaised - amountForPlatform;
// transfer amount (75%) to the seller.
(bool sent, ) = raffle.seller.call{value: amountForSeller}("");
require(sent, "Failed to send Ether");
// transfer the amount to the platform
(bool sent2, ) = destinationWallet.call{value: amountForPlatform}("");
require(sent2, "Failed send Eth to MW");
emit FeeTransferredToPlatform(_raffleId, amountForPlatform);
emit RaffleEnded(
_raffleId,
raffle.winner,
entryInfo.amountRaised,
_normalizedRandomNumber
);
}
function setCashOutActions(
uint256 _raffleId
) internal returns (EntryInfoStruct memory) {
RaffleStruct memory raffle = raffles[_raffleId];
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
FundingStructure memory funding = fundingList[_raffleId];
require(raffle.seller == msg.sender, "Not the seller");
// Check if the raffle is already accepted
require(
entryInfo.status == STATUS.ACCEPTED,
"Raffle not in accepted status"
);
require(
entryInfo.amountRaised >= funding.minimumFundsInWeis,
"Not enough funds raised"
);
entryInfo.status = STATUS.EARLY_CASHOUT;
emit EarlyCashoutTriggered(_raffleId, entryInfo.amountRaised);
return entryInfo;
}
// can be called by the seller at every moment once enough funds has been raised
/// @param _raffleId Id of the raffle
/// @notice the seller of the nft, if the minimum amount has been reached, can call an early cashout, finishing the raffle
/// @dev it triggers Chainlink VRF1 consumer, and generates a random number that is normalized and checked that corresponds to a MW player
function earlyCashOut(uint256 _raffleId) external {
EntryInfoStruct memory raffle = setWinnerActions(_raffleId);
bytes32 requestId = callVRFAndGetRequestId();
getRandomNumber(_raffleId, raffle.entriesLength, requestId);
}
function setWinnerActions(
uint256 _raffleId
) internal returns (EntryInfoStruct memory) {
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
// RaffleStruct storage raffle = raffles[_raffleId];
FundingStructure storage funding = fundingList[_raffleId];
// Check if the raffle is already accepted or is called again because early cashout failed
require(entryInfo.status == STATUS.ACCEPTED, "Raffle in wrong status");
require(
entryInfo.amountRaised >= funding.minimumFundsInWeis,
"Not enough funds raised"
);
require(
funding.desiredFundsInWeis <= entryInfo.amountRaised,
"Desired funds not raised"
);
entryInfo.status = STATUS.CLOSING_REQUESTED;
emit SetWinnerTriggered(_raffleId, entryInfo.amountRaised);
return entryInfo;
}
/// @param _raffleId Id of the raffle
/// @notice the operator finish the raffle, if the desired funds has been reached
/// @dev it triggers Chainlink VRF1 consumer, and generates a random number that is normalized and checked that corresponds to a MW player
function setWinner(
uint256 _raffleId
) external nonReentrant onlyRole(OPERATOR_ROLE) {
EntryInfoStruct memory raffle = setWinnerActions(_raffleId);
// this call trigers the VRF v1 process from Chainlink
bytes32 requestId = callVRFAndGetRequestId();
getRandomNumber(_raffleId, raffle.entriesLength, requestId);
}
/// @param _newAddress new address of the platform
/// @dev Change the wallet of the platform. The one that will receive the platform fee when the raffle is closed.
/// Only the admin can change this
function setDestinationAddress(
address payable _newAddress
) external onlyRole(DEFAULT_ADMIN_ROLE) {
destinationWallet = _newAddress;
}
/// @param _raffleId Id of the raffle
/// @dev The operator can cancel the raffle. The NFT is sent back to the seller
/// The raised funds are send to the destination wallet. The buyers will
/// be refunded offchain in the metawin wallet
function cancelRaffle(
uint256 _raffleId
) external nonReentrant onlyRole(OPERATOR_ROLE) {
RaffleStruct storage raffle = raffles[_raffleId];
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
// Dont cancel twice, or cancel an already ended raffle
require(
entryInfo.status != STATUS.ENDED &&
entryInfo.status != STATUS.CANCELLED &&
entryInfo.status != STATUS.EARLY_CASHOUT &&
entryInfo.status != STATUS.CLOSING_REQUESTED &&
entryInfo.status != STATUS.CANCEL_REQUESTED,
"Wrong status"
);
// only if the raffle is in accepted status the NFT is staked and could have entries sold
if (entryInfo.status == STATUS.ACCEPTED) {
// transfer nft to the owner
IERC721 _asset = IERC721(raffle.collateralAddress);
_asset.transferFrom(
address(this),
raffle.seller,
raffle.collateralId
);
}
entryInfo.status = STATUS.CANCEL_REQUESTED;
raffle.cancellingDate = uint48(block.timestamp);
emit RaffleCancelled(_raffleId, entryInfo.amountRaised);
}
/// @param _raffleId Id of the raffle
/// @dev after 30 days after cancelling passes, the operator can transfer to
/// destinationWallet the remaining funds
function transferRemainingFunds(
uint256 _raffleId
) external nonReentrant onlyRole(OPERATOR_ROLE) {
// RaffleStruct memory raffle = raffles[_raffleId];
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
require(entryInfo.status == STATUS.CANCELLED || entryInfo.status == STATUS.CANCEL_REQUESTED, "Wrong status");
entryInfo.status = STATUS.CANCELLED;
(bool sent, ) = destinationWallet.call{value: entryInfo.amountRaised}(
""
);
require(sent, "Fail send Eth to MW");
emit RemainingFundsTransferred(_raffleId, entryInfo.amountRaised);
entryInfo.amountRaised = 0;
}
/// @param _raffleId Id of the raffle
/// @return array of entries bougth of that particular raffle
function getEntriesBought(
uint256 _raffleId
) external view returns (EntriesBought[] memory) {
return entriesList[_raffleId];
}
/* /// @param _raffleId Id of the raffle
/// @param _player wallet of the player
/// @return Claims data of the player on that raffle
function getClaimData(
uint256 _raffleId,
address _player
) external view returns (ClaimStruct memory) {
return claimsData[keccak256(abi.encode(_player, _raffleId))];
}
*/
/// @dev for different reasons player entries should be void
/// this has a cost in gas, but this makes cheaper in gas the callback from chainlink
/// This method has to be called for every raffle of the blacklisted player
/// @param _raffleId Id of the raffle
/// @param entriesToCancel array that contains the index of the entries to cancel. 0 based
/// @param _player player who owns the entry to be voided
function cancelEntry(
uint256 _raffleId,
uint256[] calldata entriesToCancel,
address _player
) external onlyRole(OPERATOR_ROLE) {
uint256 totalEntriesBoughtCancelled = 0;
for (uint256 i = 0; i < entriesToCancel.length; i++) {
EntriesBought storage entry = entriesList[_raffleId][
entriesToCancel[i]+1
];
require(entry.player == _player, "Entry did not belong to player");
entry.player = address(0);
uint256 previousTotalEntriesLength;
if (entriesToCancel[i] == 0) previousTotalEntriesLength = 0;
else
previousTotalEntriesLength = entriesList[_raffleId][
entriesToCancel[i] /* - 1*/
].currentEntriesLength;
totalEntriesBoughtCancelled +=
entry.currentEntriesLength -
previousTotalEntriesLength;
}
emit EntryCancelled(_raffleId, totalEntriesBoughtCancelled, _player);
}
// Requested by Valerio Di Napoli.
/// @param _raffleId id of the raffle
/// @param _amountOfEntries amount of entries. Must be lower than maxEntriesPerUser
/// @param _player The address of the player
/// @notice Called by other contract created by Valerio, that minted an NFT and after that call this method
/// @dev add entries but they are free so no payable
function createFreeEntriesFromExternalContract(
uint256 _raffleId,
uint48 _amountOfEntries,
address _player
) external onlyRole(MINTERCONTRACT_ROLE) nonReentrant {
// if can buy run this code.
bytes32 hash = keccak256(abi.encode(_player, _raffleId));
// RaffleStruct storage raffle = raffles[_raffleId];
EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
require(
entryInfo.entryType == ENTRY_TYPE.ONLY_EXTERNAL_CONTRACT ||
entryInfo.entryType == ENTRY_TYPE.MIXED,
"Entry type not allowed"
);
EntriesBought memory entryBought = EntriesBought({
player: _player,
currentEntriesLength: entryInfo.entriesLength + _amountOfEntries
});
entriesList[_raffleId].push(entryBought);
// update the field entriesLength.
entryInfo.entriesLength += _amountOfEntries;
//update claim data
// claimsData[hash].numEntriesPerUser += _amountOfEntries;
address[] memory players = new address[](1);
players[0] = _player;
emit FreeEntry(
_raffleId,
players,
_amountOfEntries,
entryInfo.entriesLength
);
}
function getRafflesEntryInfo(
uint256 _raffleId
) public view returns (EntryInfoStruct memory) {
return rafflesEntryInfo[_raffleId];
}
function playerIsBlacklisted(address _player) external pure returns (bool) {
// return blackListManager.isBlackListed(_player);
return false;
}
function raffleNotInAcceptedState(
uint256 _raffleId
) external view returns (bool) {
EntryInfoStruct memory entryInfo = rafflesEntryInfo[_raffleId];
return (entryInfo.status != STATUS.ACCEPTED);
}
function playerIsSeller(
address _player,
uint256 _raffleId
) external view returns (bool) {
RaffleStruct memory raffle = raffles[_raffleId];
return (raffle.seller == _player);
}
function playerReachedMaxEntries(
address _player,
uint256 _raffleId,
uint256 _amountOfEntries
) external pure returns (bool) {
/* EntryInfoStruct storage entryInfo = rafflesEntryInfo[_raffleId];
bytes32 hash = keccak256(abi.encode(_player, _raffleId));
// check there are enough entries left for this particular user
return (claimsData[hash].numEntriesPerUser + _amountOfEntries >
entryInfo.maxEntries);*/
return false;
}
/* Requested by Valerio Di Napoli.
@param _player The address of the player
@param _raffleId id of the raffle
@param _colection Address of the required collection, if any
@param _tokenIdUsed Id of the token of the required collection the player says he has and want to use in the raffle
@returns bool if the player can buy or not, and string with the cause of the rejection. "" if can buy
@notice Method that returns if the user can or cannot buy entries because the player owns an nft in the case or required collections.
*/
function playerHasRequiredNFTs(
address _player,
uint256 _raffleId,
address _collection,
uint256 _tokenIdUsed
) external pure returns (bool canBuy, string memory cause) {
return (true, "");
}
}
// File: @openzeppelin/contracts/utils/math/Math.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a >= b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. It the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`.
// We also know that `k`, the position of the most significant bit, is such that `msb(a) = 2**k`.
// This gives `2**k < a <= 2**(k+1)` → `2**(k/2) <= sqrt(a) < 2 ** (k/2+1)`.
// Using an algorithm similar to the msb conmputation, we are able to compute `result = 2**(k/2)` which is a
// good first aproximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1;
uint256 x = a;
if (x >> 128 > 0) {
x >>= 128;
result <<= 64;
}
if (x >> 64 > 0) {
x >>= 64;
result <<= 32;
}
if (x >> 32 > 0) {
x >>= 32;
result <<= 16;
}
if (x >> 16 > 0) {
x >>= 16;
result <<= 8;
}
if (x >> 8 > 0) {
x >>= 8;
result <<= 4;
}
if (x >> 4 > 0) {
x >>= 4;
result <<= 2;
}
if (x >> 2 > 0) {
result <<= 1;
}
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
uint256 result = sqrt(a);
if (rounding == Rounding.Up && result * result < a) {
result += 1;
}
return result;
}
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/token/ERC721/IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts/security/ReentrancyGuard.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// File: @openzeppelin/contracts/access/IAccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)
pragma solidity ^0.8.0;
/**
* @dev External interface of AccessControl declared to support ERC165 detection.
*/
interface IAccessControl {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) external view returns (bool);
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {AccessControl-_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) external view returns (bytes32);
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(bytes32 role, address account) external;
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been granted `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external;
}
// File: @openzeppelin/contracts/access/AccessControl.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it.
*/
abstract contract AccessControl is Context, IAccessControl, ERC165 {
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
Strings.toHexString(uint160(account), 20),
" is missing role ",
Strings.toHexString(uint256(role), 32)
)
)
);
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleGranted} event.
*/
function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*
* May emit a {RoleRevoked} event.
*/
function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*
* May emit a {RoleRevoked} event.
*/
function renounceRole(bytes32 role, address account) public virtual override {
require(account == _msgSender(), "AccessControl: can only renounce roles for self");
_revokeRole(role, account);
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event. Note that unlike {grantRole}, this function doesn't perform any
* checks on the calling account.
*
* May emit a {RoleGranted} event.
*
* [WARNING]
* ====
* This function should only be called from the constructor when setting
* up the initial roles for the system.
*
* Using this function in any other way is effectively circumventing the admin
* system imposed by {AccessControl}.
* ====
*
* NOTE: This function is deprecated in favor of {_grantRole}.
*/
function _setupRole(bytes32 role, address account) internal virtual {
_grantRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleGranted} event.
*/
function _grantRole(bytes32 role, address account) internal virtual {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, _msgSender());
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*
* May emit a {RoleRevoked} event.
*/
function _revokeRole(bytes32 role, address account) internal virtual {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, _msgSender());
}
}
}
// File: @chainlink/contracts/src/v0.8/interfaces/LinkTokenInterface.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface LinkTokenInterface {
function allowance(address owner, address spender) external view returns (uint256 remaining);
function approve(address spender, uint256 value) external returns (bool success);
function balanceOf(address owner) external view returns (uint256 balance);
function decimals() external view returns (uint8 decimalPlaces);
function decreaseApproval(address spender, uint256 addedValue) external returns (bool success);
function increaseApproval(address spender, uint256 subtractedValue) external;
function name() external view returns (string memory tokenName);
function symbol() external view returns (string memory tokenSymbol);
function totalSupply() external view returns (uint256 totalTokensIssued);
function transfer(address to, uint256 value) external returns (bool success);
function transferAndCall(
address to,
uint256 value,
bytes calldata data
) external returns (bool success);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool success);
}
// File: @chainlink/contracts/src/v0.8/VRFRequestIDBase.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract VRFRequestIDBase {
/**
* @notice returns the seed which is actually input to the VRF coordinator
*
* @dev To prevent repetition of VRF output due to repetition of the
* @dev user-supplied seed, that seed is combined in a hash with the
* @dev user-specific nonce, and the address of the consuming contract. The
* @dev risk of repetition is mostly mitigated by inclusion of a blockhash in
* @dev the final seed, but the nonce does protect against repetition in
* @dev requests which are included in a single block.
*
* @param _userSeed VRF seed input provided by user
* @param _requester Address of the requesting contract
* @param _nonce User-specific nonce at the time of the request
*/
function makeVRFInputSeed(
bytes32 _keyHash,
uint256 _userSeed,
address _requester,
uint256 _nonce
) internal pure returns (uint256) {
return uint256(keccak256(abi.encode(_keyHash, _userSeed, _requester, _nonce)));
}
/**
* @notice Returns the id for this request
* @param _keyHash The serviceAgreement ID to be used for this request
* @param _vRFInputSeed The seed to be passed directly to the VRF
* @return The id for this request
*
* @dev Note that _vRFInputSeed is not the seed passed by the consuming
* @dev contract, but the one generated by makeVRFInputSeed
*/
function makeRequestId(bytes32 _keyHash, uint256 _vRFInputSeed) internal pure returns (bytes32) {
return keccak256(abi.encodePacked(_keyHash, _vRFInputSeed));
}
}
// File: @chainlink/contracts/src/v0.8/VRFConsumerBase.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./interfaces/LinkTokenInterface.sol";
import "./VRFRequestIDBase.sol";
/** ****************************************************************************
* @notice Interface for contracts using VRF randomness
* *****************************************************************************
* @dev PURPOSE
*
* @dev Reggie the Random Oracle (not his real job) wants to provide randomness
* @dev to Vera the verifier in such a way that Vera can be sure he's not
* @dev making his output up to suit himself. Reggie provides Vera a public key
* @dev to which he knows the secret key. Each time Vera provides a seed to
* @dev Reggie, he gives back a value which is computed completely
* @dev deterministically from the seed and the secret key.
*
* @dev Reggie provides a proof by which Vera can verify that the output was
* @dev correctly computed once Reggie tells it to her, but without that proof,
* @dev the output is indistinguishable to her from a uniform random sample
* @dev from the output space.
*
* @dev The purpose of this contract is to make it easy for unrelated contracts
* @dev to talk to Vera the verifier about the work Reggie is doing, to provide
* @dev simple access to a verifiable source of randomness.
* *****************************************************************************
* @dev USAGE
*
* @dev Calling contracts must inherit from VRFConsumerBase, and can
* @dev initialize VRFConsumerBase's attributes in their constructor as
* @dev shown:
*
* @dev contract VRFConsumer {
* @dev constructor(<other arguments>, address _vrfCoordinator, address _link)
* @dev VRFConsumerBase(_vrfCoordinator, _link) public {
* @dev <initialization with other arguments goes here>
* @dev }
* @dev }
*
* @dev The oracle will have given you an ID for the VRF keypair they have
* @dev committed to (let's call it keyHash), and have told you the minimum LINK
* @dev price for VRF service. Make sure your contract has sufficient LINK, and
* @dev call requestRandomness(keyHash, fee, seed), where seed is the input you
* @dev want to generate randomness from.
*
* @dev Once the VRFCoordinator has received and validated the oracle's response
* @dev to your request, it will call your contract's fulfillRandomness method.
*
* @dev The randomness argument to fulfillRandomness is the actual random value
* @dev generated from your seed.
*
* @dev The requestId argument is generated from the keyHash and the seed by
* @dev makeRequestId(keyHash, seed). If your contract could have concurrent
* @dev requests open, you can use the requestId to track which seed is
* @dev associated with which randomness. See VRFRequestIDBase.sol for more
* @dev details. (See "SECURITY CONSIDERATIONS" for principles to keep in mind,
* @dev if your contract could have multiple requests in flight simultaneously.)
*
* @dev Colliding `requestId`s are cryptographically impossible as long as seeds
* @dev differ. (Which is critical to making unpredictable randomness! See the
* @dev next section.)
*
* *****************************************************************************
* @dev SECURITY CONSIDERATIONS
*
* @dev A method with the ability to call your fulfillRandomness method directly
* @dev could spoof a VRF response with any random value, so it's critical that
* @dev it cannot be directly called by anything other than this base contract
* @dev (specifically, by the VRFConsumerBase.rawFulfillRandomness method).
*
* @dev For your users to trust that your contract's random behavior is free
* @dev from malicious interference, it's best if you can write it so that all
* @dev behaviors implied by a VRF response are executed *during* your
* @dev fulfillRandomness method. If your contract must store the response (or
* @dev anything derived from it) and use it later, you must ensure that any
* @dev user-significant behavior which depends on that stored value cannot be
* @dev manipulated by a subsequent VRF request.
*
* @dev Similarly, both miners and the VRF oracle itself have some influence
* @dev over the order in which VRF responses appear on the blockchain, so if
* @dev your contract could have multiple VRF requests in flight simultaneously,
* @dev you must ensure that the order in which the VRF responses arrive cannot
* @dev be used to manipulate your contract's user-significant behavior.
*
* @dev Since the ultimate input to the VRF is mixed with the block hash of the
* @dev block in which the request is made, user-provided seeds have no impact
* @dev on its economic security properties. They are only included for API
* @dev compatability with previous versions of this contract.
*
* @dev Since the block hash of the block which contains the requestRandomness
* @dev call is mixed into the input to the VRF *last*, a sufficiently powerful
* @dev miner could, in principle, fork the blockchain to evict the block
* @dev containing the request, forcing the request to be included in a
* @dev different block with a different hash, and therefore a different input
* @dev to the VRF. However, such an attack would incur a substantial economic
* @dev cost. This cost scales with the number of blocks the VRF oracle waits
* @dev until it calls responds to a request.
*/
abstract contract VRFConsumerBase is VRFRequestIDBase {
/**
* @notice fulfillRandomness handles the VRF response. Your contract must
* @notice implement it. See "SECURITY CONSIDERATIONS" above for important
* @notice principles to keep in mind when implementing your fulfillRandomness
* @notice method.
*
* @dev VRFConsumerBase expects its subcontracts to have a method with this
* @dev signature, and will call it once it has verified the proof
* @dev associated with the randomness. (It is triggered via a call to
* @dev rawFulfillRandomness, below.)
*
* @param requestId The Id initially returned by requestRandomness
* @param randomness the VRF output
*/
function fulfillRandomness(bytes32 requestId, uint256 randomness) internal virtual;
/**
* @dev In order to keep backwards compatibility we have kept the user
* seed field around. We remove the use of it because given that the blockhash
* enters later, it overrides whatever randomness the used seed provides.
* Given that it adds no security, and can easily lead to misunderstandings,
* we have removed it from usage and can now provide a simpler API.
*/
uint256 private constant USER_SEED_PLACEHOLDER = 0;
/**
* @notice requestRandomness initiates a request for VRF output given _seed
*
* @dev The fulfillRandomness method receives the output, once it's provided
* @dev by the Oracle, and verified by the vrfCoordinator.
*
* @dev The _keyHash must already be registered with the VRFCoordinator, and
* @dev the _fee must exceed the fee specified during registration of the
* @dev _keyHash.
*
* @dev The _seed parameter is vestigial, and is kept only for API
* @dev compatibility with older versions. It can't *hurt* to mix in some of
* @dev your own randomness, here, but it's not necessary because the VRF
* @dev oracle will mix the hash of the block containing your request into the
* @dev VRF seed it ultimately uses.
*
* @param _keyHash ID of public key against which randomness is generated
* @param _fee The amount of LINK to send with the request
*
* @return requestId unique ID for this request
*
* @dev The returned requestId can be used to distinguish responses to
* @dev concurrent requests. It is passed as the first argument to
* @dev fulfillRandomness.
*/
function requestRandomness(bytes32 _keyHash, uint256 _fee) internal returns (bytes32 requestId) {
LINK.transferAndCall(vrfCoordinator, _fee, abi.encode(_keyHash, USER_SEED_PLACEHOLDER));
// This is the seed passed to VRFCoordinator. The oracle will mix this with
// the hash of the block containing this request to obtain the seed/input
// which is finally passed to the VRF cryptographic machinery.
uint256 vRFSeed = makeVRFInputSeed(_keyHash, USER_SEED_PLACEHOLDER, address(this), nonces[_keyHash]);
// nonces[_keyHash] must stay in sync with
// VRFCoordinator.nonces[_keyHash][this], which was incremented by the above
// successful LINK.transferAndCall (in VRFCoordinator.randomnessRequest).
// This provides protection against the user repeating their input seed,
// which would result in a predictable/duplicate output, if multiple such
// requests appeared in the same block.
nonces[_keyHash] = nonces[_keyHash] + 1;
return makeRequestId(_keyHash, vRFSeed);
}
LinkTokenInterface internal immutable LINK;
address private immutable vrfCoordinator;
// Nonces for each VRF key from which randomness has been requested.
//
// Must stay in sync with VRFCoordinator[_keyHash][this]
mapping(bytes32 => uint256) /* keyHash */ /* nonce */
private nonces;
/**
* @param _vrfCoordinator address of VRFCoordinator contract
* @param _link address of LINK token contract
*
* @dev https://docs.chain.link/docs/link-token-contracts
*/
constructor(address _vrfCoordinator, address _link) {
vrfCoordinator = _vrfCoordinator;
LINK = LinkTokenInterface(_link);
}
// rawFulfillRandomness is called by VRFCoordinator when it receives a valid VRF
// proof. rawFulfillRandomness then calls fulfillRandomness, after validating
// the origin of the call
function rawFulfillRandomness(bytes32 requestId, uint256 randomness) external {
require(msg.sender == vrfCoordinator, "Only VRFCoordinator can fulfill");
fulfillRandomness(requestId, randomness);
}
}
| [{"inputs":[{"internalType":"address","name":"_vrfCoordinator","type":"address"},{"internalType":"address","name":"_linkToken","type":"address"},{"internalType":"bytes32","name":"_keyHash","type":"bytes32"},{"internalType":"bool","name":"_mainetFee","type":"bool"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"string","name":"errorType","type":"string"}],"name":"EntryNotAllowed","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountRaised","type":"uint256"}],"name":"EarlyCashoutTriggered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountOfEntriesCanceled","type":"uint256"},{"indexed":false,"internalType":"address","name":"player","type":"address"}],"name":"EntryCancelled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"currentSize","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"priceStructureId","type":"uint256"}],"name":"EntrySold","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountTransferred","type":"uint256"}],"name":"FeeTransferredToPlatform","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"address[]","name":"buyer","type":"address[]"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"currentSize","type":"uint256"}],"name":"FreeEntry","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountRaised","type":"uint256"}],"name":"RaffleCancelled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":true,"internalType":"address","name":"nftAddress","type":"address"},{"indexed":true,"internalType":"uint256","name":"nftId","type":"uint256"}],"name":"RaffleCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":true,"internalType":"address","name":"winner","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountRaised","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"randomNumber","type":"uint256"}],"name":"RaffleEnded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":true,"internalType":"address","name":"seller","type":"address"}],"name":"RaffleStarted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"idFromMetawin","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"randomNumber","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"normalizedRandomNumber","type":"uint256"}],"name":"RandomNumberCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountInWeis","type":"uint256"},{"indexed":true,"internalType":"address","name":"player","type":"address"}],"name":"Refund","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountInWeis","type":"uint256"}],"name":"RemainingFundsTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"raffleId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountRaised","type":"uint256"}],"name":"SetWinnerTriggered","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTERCONTRACT_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"OPERATOR_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"uint256","name":"_id","type":"uint256"}],"name":"buyEntry","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"uint256[]","name":"entriesToCancel","type":"uint256[]"},{"internalType":"address","name":"_player","type":"address"}],"name":"cancelEntry","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"cancelRaffle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"chainlinkRaffleInfo","outputs":[{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"size","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"claimsData","outputs":[{"internalType":"uint48","name":"","type":"uint48"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"uint48","name":"_amountOfEntries","type":"uint48"},{"internalType":"address","name":"_player","type":"address"}],"name":"createFreeEntriesFromExternalContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint128","name":"_desiredFundsInWeis","type":"uint128"},{"internalType":"address","name":"_collateralAddress","type":"address"},{"internalType":"uint48","name":"_collateralId","type":"uint48"},{"internalType":"uint128","name":"_minimumFundsInWeis","type":"uint128"},{"components":[{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint48","name":"numEntries","type":"uint48"},{"internalType":"uint256","name":"price","type":"uint256"}],"internalType":"struct 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payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"earlyCashOut","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"entriesList","outputs":[{"internalType":"uint48","name":"currentEntriesLength","type":"uint48"},{"internalType":"address","name":"player","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"fundingList","outputs":[{"internalType":"uint128","name":"minimumFundsInWeis","type":"uint128"},{"internalType":"uint128","name":"desiredFundsInWeis","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"getEntriesBought","outputs":[{"components":[{"internalType":"uint48","name":"currentEntriesLength","type":"uint48"},{"internalType":"address","name":"player","type":"address"}],"internalType":"struct NFTSingleNoGatingSevPrices.EntriesBought[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"getRafflesEntryInfo","outputs":[{"components":[{"internalType":"enum NFTSingleNoGatingSevPrices.STATUS","name":"status","type":"uint8"},{"internalType":"enum NFTSingleNoGatingSevPrices.ENTRY_TYPE","name":"entryType","type":"uint8"},{"internalType":"uint48","name":"entriesLength","type":"uint48"},{"internalType":"uint128","name":"amountRaised","type":"uint128"}],"internalType":"struct NFTSingleNoGatingSevPrices.EntryInfoStruct","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"uint256","name":"_normalizedRandomNumber","type":"uint256"}],"name":"getWinnerAddressFromRandom","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"address[]","name":"_freePlayers","type":"address[]"}],"name":"giveBatchEntriesForFree","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_player","type":"address"},{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"address","name":"_collection","type":"address"},{"internalType":"uint256","name":"_tokenIdUsed","type":"uint256"}],"name":"playerHasRequiredNFTs","outputs":[{"internalType":"bool","name":"canBuy","type":"bool"},{"internalType":"string","name":"cause","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_player","type":"address"}],"name":"playerIsBlacklisted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_player","type":"address"},{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"playerIsSeller","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_player","type":"address"},{"internalType":"uint256","name":"_raffleId","type":"uint256"},{"internalType":"uint256","name":"_amountOfEntries","type":"uint256"}],"name":"playerReachedMaxEntries","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"pricesList","outputs":[{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint48","name":"numEntries","type":"uint48"},{"internalType":"uint256","name":"price","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"raffleNotInAcceptedState","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"raffles","outputs":[{"internalType":"uint48","name":"platformPercentage","type":"uint48"},{"internalType":"uint48","name":"cancellingDate","type":"uint48"},{"internalType":"uint48","name":"collateralId","type":"uint48"},{"internalType":"address","name":"collateralAddress","type":"address"},{"internalType":"address","name":"winner","type":"address"},{"internalType":"address","name":"seller","type":"address"},{"internalType":"uint256","name":"randomNumber","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rafflesEntryInfo","outputs":[{"internalType":"enum NFTSingleNoGatingSevPrices.STATUS","name":"status","type":"uint8"},{"internalType":"enum NFTSingleNoGatingSevPrices.ENTRY_TYPE","name":"entryType","type":"uint8"},{"internalType":"uint48","name":"entriesLength","type":"uint48"},{"internalType":"uint128","name":"amountRaised","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"requestId","type":"bytes32"},{"internalType":"uint256","name":"randomness","type":"uint256"}],"name":"rawFulfillRandomness","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"requests","outputs":[{"internalType":"uint256","name":"randomNumber","type":"uint256"},{"internalType":"uint256","name":"nomalizedRandomNumber","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_newAddress","type":"address"}],"name":"setDestinationAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"setWinner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"stakeNFT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_raffleId","type":"uint256"}],"name":"transferRemainingFunds","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.4+commit.c7e474f2 | true | 200 | 000000000000000000000000f0d54349addcf704f77ae15b96510dea15cb7952000000000000000000000000514910771af9ca656af840dff83e8264ecf986caaa77729d3466ca35ae8d28b3bbac7cc36a5031efdc430821c02bc31a238af4450000000000000000000000000000000000000000000000000000000000000001 | Default | false | ||||
GnosisSafeProxy | 0x3a11ea174c47e3e95afeea9edc5d37b2e26d9993 | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
Forwarder | 0xb9e0257147ff706abce72dddf61ce7f05be767c4 | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
WalletSimple | 0x7442d46a1692fa565bab840fc1a00b7d7a3f3744 | Solidity | // File: ERC20Interface.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.7.5;
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// File: Forwarder.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.7.5;
import './TransferHelper.sol';
import './ERC20Interface.sol';
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
// File: TransferHelper.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.7.5;
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
// File: WalletSimple.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.7.5;
import './TransferHelper.sol';
import './Forwarder.sol';
import './ERC20Interface.sol';
/**
*
* WalletSimple
* ============
*
* Basic multi-signer wallet designed for use in a co-signing environment where 2 signatures are required to move funds.
* Typically used in a 2-of-3 signing configuration. Uses ecrecover to allow for 2 signatures in a single transaction.
*
* The first signature is created on the operation hash (see Data Formats) and passed to sendMultiSig/sendMultiSigToken
* The signer is determined by verifyMultiSig().
*
* The second signature is created by the submitter of the transaction and determined by msg.signer.
*
* Data Formats
* ============
*
* The signature is created with ethereumjs-util.ecsign(operationHash).
* Like the eth_sign RPC call, it packs the values as a 65-byte array of [r, s, v].
* Unlike eth_sign, the message is not prefixed.
*
* The operationHash the result of keccak256(prefix, toAddress, value, data, expireTime).
* For ether transactions, `prefix` is "ETHER".
* For token transaction, `prefix` is "ERC20" and `data` is the tokenContractAddress.
*
*
*/
contract WalletSimple {
// Events
event Deposited(address from, uint256 value, bytes data);
event SafeModeActivated(address msgSender);
event Transacted(
address msgSender, // Address of the sender of the message initiating the transaction
address otherSigner, // Address of the signer (second signature) used to initiate the transaction
bytes32 operation, // Operation hash (see Data Formats)
address toAddress, // The address the transaction was sent to
uint256 value, // Amount of Wei sent to the address
bytes data // Data sent when invoking the transaction
);
event BatchTransfer(address sender, address recipient, uint256 value);
// this event shows the other signer and the operation hash that they signed
// specific batch transfer events are emitted in Batcher
event BatchTransacted(
address msgSender, // Address of the sender of the message initiating the transaction
address otherSigner, // Address of the signer (second signature) used to initiate the transaction
bytes32 operation // Operation hash (see Data Formats)
);
// Public fields
mapping(address => bool) public signers; // The addresses that can co-sign transactions on the wallet
bool public safeMode = false; // When active, wallet may only send to signer addresses
bool public initialized = false; // True if the contract has been initialized
// Internal fields
uint256 private constant MAX_SEQUENCE_ID_INCREASE = 10000;
uint256 constant SEQUENCE_ID_WINDOW_SIZE = 10;
uint256[SEQUENCE_ID_WINDOW_SIZE] recentSequenceIds;
/**
* Set up a simple multi-sig wallet by specifying the signers allowed to be used on this wallet.
* 2 signers will be required to send a transaction from this wallet.
* Note: The sender is NOT automatically added to the list of signers.
* Signers CANNOT be changed once they are set
*
* @param allowedSigners An array of signers on the wallet
*/
function init(address[] calldata allowedSigners) external onlyUninitialized {
require(allowedSigners.length == 3, 'Invalid number of signers');
for (uint8 i = 0; i < allowedSigners.length; i++) {
require(allowedSigners[i] != address(0), 'Invalid signer');
signers[allowedSigners[i]] = true;
}
initialized = true;
}
/**
* Get the network identifier that signers must sign over
* This provides protection signatures being replayed on other chains
* This must be a virtual function because chain-specific contracts will need
* to override with their own network ids. It also can't be a field
* to allow this contract to be used by proxy with delegatecall, which will
* not pick up on state variables
*/
function getNetworkId() internal virtual pure returns (string memory) {
return 'ETHER';
}
/**
* Get the network identifier that signers must sign over for token transfers
* This provides protection signatures being replayed on other chains
* This must be a virtual function because chain-specific contracts will need
* to override with their own network ids. It also can't be a field
* to allow this contract to be used by proxy with delegatecall, which will
* not pick up on state variables
*/
function getTokenNetworkId() internal virtual pure returns (string memory) {
return 'ERC20';
}
/**
* Get the network identifier that signers must sign over for batch transfers
* This provides protection signatures being replayed on other chains
* This must be a virtual function because chain-specific contracts will need
* to override with their own network ids. It also can't be a field
* to allow this contract to be used by proxy with delegatecall, which will
* not pick up on state variables
*/
function getBatchNetworkId() internal virtual pure returns (string memory) {
return 'ETHER-Batch';
}
/**
* Determine if an address is a signer on this wallet
* @param signer address to check
* returns boolean indicating whether address is signer or not
*/
function isSigner(address signer) public view returns (bool) {
return signers[signer];
}
/**
* Modifier that will execute internal code block only if the sender is an authorized signer on this wallet
*/
modifier onlySigner {
require(isSigner(msg.sender), 'Non-signer in onlySigner method');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(!initialized, 'Contract already initialized');
_;
}
/**
* Gets called when a transaction is received with data that does not match any other method
*/
fallback() external payable {
if (msg.value > 0) {
// Fire deposited event if we are receiving funds
Deposited(msg.sender, msg.value, msg.data);
}
}
/**
* Gets called when a transaction is received with ether and no data
*/
receive() external payable {
if (msg.value > 0) {
// Fire deposited event if we are receiving funds
Deposited(msg.sender, msg.value, msg.data);
}
}
/**
* Execute a multi-signature transaction from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
* Sequence IDs are numbers starting from 1. They are used to prevent replay attacks and may not be repeated.
*
* @param toAddress the destination address to send an outgoing transaction
* @param value the amount in Wei to be sent
* @param data the data to send to the toAddress when invoking the transaction
* @param expireTime the number of seconds since 1970 for which this transaction is valid
* @param sequenceId the unique sequence id obtainable from getNextSequenceId
* @param signature see Data Formats
*/
function sendMultiSig(
address toAddress,
uint256 value,
bytes calldata data,
uint256 expireTime,
uint256 sequenceId,
bytes calldata signature
) external onlySigner {
// Verify the other signer
bytes32 operationHash = keccak256(
abi.encodePacked(
getNetworkId(),
toAddress,
value,
data,
expireTime,
sequenceId
)
);
address otherSigner = verifyMultiSig(
toAddress,
operationHash,
signature,
expireTime,
sequenceId
);
// Success, send the transaction
(bool success, ) = toAddress.call{ value: value }(data);
require(success, 'Call execution failed');
emit Transacted(
msg.sender,
otherSigner,
operationHash,
toAddress,
value,
data
);
}
/**
* Execute a batched multi-signature transaction from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
* Sequence IDs are numbers starting from 1. They are used to prevent replay attacks and may not be repeated.
* The recipients and values to send are encoded in two arrays, where for index i, recipients[i] will be sent values[i].
*
* @param recipients The list of recipients to send to
* @param values The list of values to send to
* @param expireTime the number of seconds since 1970 for which this transaction is valid
* @param sequenceId the unique sequence id obtainable from getNextSequenceId
* @param signature see Data Formats
*/
function sendMultiSigBatch(
address[] calldata recipients,
uint256[] calldata values,
uint256 expireTime,
uint256 sequenceId,
bytes calldata signature
) external onlySigner {
require(recipients.length != 0, 'Not enough recipients');
require(
recipients.length == values.length,
'Unequal recipients and values'
);
require(recipients.length < 256, 'Too many recipients, max 255');
// Verify the other signer
bytes32 operationHash = keccak256(
abi.encodePacked(
getBatchNetworkId(),
recipients,
values,
expireTime,
sequenceId
)
);
// the first parameter (toAddress) is used to ensure transactions in safe mode only go to a signer
// if in safe mode, we should use normal sendMultiSig to recover, so this check will always fail if in safe mode
require(!safeMode, 'Batch in safe mode');
address otherSigner = verifyMultiSig(
address(0x0),
operationHash,
signature,
expireTime,
sequenceId
);
batchTransfer(recipients, values);
emit BatchTransacted(msg.sender, otherSigner, operationHash);
}
/**
* Transfer funds in a batch to each of recipients
* @param recipients The list of recipients to send to
* @param values The list of values to send to recipients.
* The recipient with index i in recipients array will be sent values[i].
* Thus, recipients and values must be the same length
*/
function batchTransfer(
address[] calldata recipients,
uint256[] calldata values
) internal {
for (uint256 i = 0; i < recipients.length; i++) {
require(address(this).balance >= values[i], 'Insufficient funds');
(bool success, ) = recipients[i].call{ value: values[i] }('');
require(success, 'Call failed');
emit BatchTransfer(msg.sender, recipients[i], values[i]);
}
}
/**
* Execute a multi-signature token transfer from this wallet using 2 signers: one from msg.sender and the other from ecrecover.
* Sequence IDs are numbers starting from 1. They are used to prevent replay attacks and may not be repeated.
*
* @param toAddress the destination address to send an outgoing transaction
* @param value the amount in tokens to be sent
* @param tokenContractAddress the address of the erc20 token contract
* @param expireTime the number of seconds since 1970 for which this transaction is valid
* @param sequenceId the unique sequence id obtainable from getNextSequenceId
* @param signature see Data Formats
*/
function sendMultiSigToken(
address toAddress,
uint256 value,
address tokenContractAddress,
uint256 expireTime,
uint256 sequenceId,
bytes calldata signature
) external onlySigner {
// Verify the other signer
bytes32 operationHash = keccak256(
abi.encodePacked(
getTokenNetworkId(),
toAddress,
value,
tokenContractAddress,
expireTime,
sequenceId
)
);
verifyMultiSig(toAddress, operationHash, signature, expireTime, sequenceId);
TransferHelper.safeTransfer(tokenContractAddress, toAddress, value);
}
/**
* Execute a token flush from one of the forwarder addresses. This transfer needs only a single signature and can be done by any signer
*
* @param forwarderAddress the address of the forwarder address to flush the tokens from
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushForwarderTokens(
address payable forwarderAddress,
address tokenContractAddress
) external onlySigner {
Forwarder forwarder = Forwarder(forwarderAddress);
forwarder.flushTokens(tokenContractAddress);
}
/**
* Do common multisig verification for both eth sends and erc20token transfers
*
* @param toAddress the destination address to send an outgoing transaction
* @param operationHash see Data Formats
* @param signature see Data Formats
* @param expireTime the number of seconds since 1970 for which this transaction is valid
* @param sequenceId the unique sequence id obtainable from getNextSequenceId
* returns address that has created the signature
*/
function verifyMultiSig(
address toAddress,
bytes32 operationHash,
bytes calldata signature,
uint256 expireTime,
uint256 sequenceId
) private returns (address) {
address otherSigner = recoverAddressFromSignature(operationHash, signature);
// Verify if we are in safe mode. In safe mode, the wallet can only send to signers
require(!safeMode || isSigner(toAddress), 'External transfer in safe mode');
// Verify that the transaction has not expired
require(expireTime >= block.timestamp, 'Transaction expired');
// Try to insert the sequence ID. Will revert if the sequence id was invalid
tryInsertSequenceId(sequenceId);
require(isSigner(otherSigner), 'Invalid signer');
require(otherSigner != msg.sender, 'Signers cannot be equal');
return otherSigner;
}
/**
* Irrevocably puts contract into safe mode. When in this mode, transactions may only be sent to signing addresses.
*/
function activateSafeMode() external onlySigner {
safeMode = true;
SafeModeActivated(msg.sender);
}
/**
* Gets signer's address using ecrecover
* @param operationHash see Data Formats
* @param signature see Data Formats
* returns address recovered from the signature
*/
function recoverAddressFromSignature(
bytes32 operationHash,
bytes memory signature
) private pure returns (address) {
require(signature.length == 65, 'Invalid signature - wrong length');
// We need to unpack the signature, which is given as an array of 65 bytes (like eth.sign)
bytes32 r;
bytes32 s;
uint8 v;
// solhint-disable-next-line
assembly {
r := mload(add(signature, 32))
s := mload(add(signature, 64))
v := and(mload(add(signature, 65)), 255)
}
if (v < 27) {
v += 27; // Ethereum versions are 27 or 28 as opposed to 0 or 1 which is submitted by some signing libs
}
// protect against signature malleability
// S value must be in the lower half orader
// reference: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/051d340171a93a3d401aaaea46b4b62fa81e5d7c/contracts/cryptography/ECDSA.sol#L53
require(
uint256(s) <=
0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0,
"ECDSA: invalid signature 's' value"
);
// note that this returns 0 if the signature is invalid
// Since 0x0 can never be a signer, when the recovered signer address
// is checked against our signer list, that 0x0 will cause an invalid signer failure
return ecrecover(operationHash, v, r, s);
}
/**
* Verify that the sequence id has not been used before and inserts it. Throws if the sequence ID was not accepted.
* We collect a window of up to 10 recent sequence ids, and allow any sequence id that is not in the window and
* greater than the minimum element in the window.
* @param sequenceId to insert into array of stored ids
*/
function tryInsertSequenceId(uint256 sequenceId) private onlySigner {
// Keep a pointer to the lowest value element in the window
uint256 lowestValueIndex = 0;
// fetch recentSequenceIds into memory for function context to avoid unnecessary sloads
uint256[SEQUENCE_ID_WINDOW_SIZE] memory _recentSequenceIds = recentSequenceIds;
for (uint256 i = 0; i < SEQUENCE_ID_WINDOW_SIZE; i++) {
require(_recentSequenceIds[i] != sequenceId, 'Sequence ID already used');
if (_recentSequenceIds[i] < _recentSequenceIds[lowestValueIndex]) {
lowestValueIndex = i;
}
}
// The sequence ID being used is lower than the lowest value in the window
// so we cannot accept it as it may have been used before
require(
sequenceId > _recentSequenceIds[lowestValueIndex],
'Sequence ID below window'
);
// Block sequence IDs which are much higher than the lowest value
// This prevents people blocking the contract by using very large sequence IDs quickly
require(
sequenceId <=
(_recentSequenceIds[lowestValueIndex] + MAX_SEQUENCE_ID_INCREASE),
'Sequence ID above maximum'
);
recentSequenceIds[lowestValueIndex] = sequenceId;
}
/**
* Gets the next available sequence ID for signing when using executeAndConfirm
* returns the sequenceId one higher than the highest currently stored
*/
function getNextSequenceId() public view returns (uint256) {
uint256 highestSequenceId = 0;
for (uint256 i = 0; i < SEQUENCE_ID_WINDOW_SIZE; i++) {
if (recentSequenceIds[i] > highestSequenceId) {
highestSequenceId = recentSequenceIds[i];
}
}
return highestSequenceId + 1;
}
}
| [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"msgSender","type":"address"},{"indexed":false,"internalType":"address","name":"otherSigner","type":"address"},{"indexed":false,"internalType":"bytes32","name":"operation","type":"bytes32"}],"name":"BatchTransacted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"BatchTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"Deposited","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"msgSender","type":"address"}],"name":"SafeModeActivated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"msgSender","type":"address"},{"indexed":false,"internalType":"address","name":"otherSigner","type":"address"},{"indexed":false,"internalType":"bytes32","name":"operation","type":"bytes32"},{"indexed":false,"internalType":"address","name":"toAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"Transacted","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"activateSafeMode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"forwarderAddress","type":"address"},{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushForwarderTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getNextSequenceId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"allowedSigners","type":"address[]"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"initialized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"signer","type":"address"}],"name":"isSigner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"safeMode","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"uint256","name":"expireTime","type":"uint256"},{"internalType":"uint256","name":"sequenceId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"sendMultiSig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"values","type":"uint256[]"},{"internalType":"uint256","name":"expireTime","type":"uint256"},{"internalType":"uint256","name":"sequenceId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"sendMultiSigBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"toAddress","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"address","name":"tokenContractAddress","type":"address"},{"internalType":"uint256","name":"expireTime","type":"uint256"},{"internalType":"uint256","name":"sequenceId","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"sendMultiSigToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"signers","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://9b7ea50863af632fc27d59c62d10655bfb3d600b53df38b8806ca46c77524980 | |||
GnosisSafeProxy | 0x6d0b2c1f85e90f105f6000937fa1472fb82b3dad | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
ERC721Sovreign | 0x25e1458f1449a9df834fbab31fed412fbf1ad76d | Solidity | // File: /contracts/token/ERC721/presets/ERC721Sovreign.sol
/*----------------------------------------------------------*|
|* ███ ██ ██ ███ ██ ███████ █████ *|
|* ████ ██ ██ ████ ██ ██ ██ ██ *|
|* ██ ██ ██ ██ ██ ██ ██ █████ ███████ *|
|* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ *|
|* ██ ████ ██ ██ ████ ██ ██ ██ *|
|*----------------------------------------------------------*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import "../extensions/ERC721Enumerable.sol";
import "../extensions/ERC721URIStorage.sol";
import "../extensions/ERC721Burnable.sol";
import "../../common/ERC2981NSovreign.sol";
import "../../../access/AccessControl.sol";
/*************************************************************
* @title ERC721Sovreign *
* *
* @notice Self-sovreign ERC-721 minter preset *
* *
* @dev {ERC721} token *
* *
* @custom:security-contact tech@ninfa.io *
************************************************************/
contract ERC721Sovreign is
ERC721Enumerable,
ERC721Burnable,
ERC721URIStorage,
ERC2981NSovreign,
AccessControl
{
/*----------------------------------------------------------*|
|* # ACCESS CONTROL *|
|*----------------------------------------------------------*/
/**
* @dev `MINTER_ROLE` is needed in case the deployer may want to use or allow other accounts to mint on their self-sovreign collection
*/
bytes32 private constant MINTER_ROLE =
0x9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a6; // keccak256("MINTER_ROLE");
/**
* @dev constant set at deployment of master contract, replaces `initializer` modifier reducing the cost of calling `initialize` from the factory contract when a new clone is deployed.
*/
address private immutable _FACTORY;
/*----------------------------------------------------------*|
|* # MINTING *|
|*----------------------------------------------------------*/
/**
* @dev Implements interface function {IERC721-mint}. Creates a new token for `msg.sender`. Its token ID will be automatically
* assigned (and available on the emitted {IERC721-Transfer} event), and the token
* URI autogenerated based on the base URI passed at construction.
* @param _tokenURI Replaces deprecated Openzeppelin contracts v4.0 `ERC721URIStorage` extension
* See https://forum.openzeppelin.com/t/why-doesnt-openzeppelin-erc721-contain-settokenuri/6373 and https://forum.openzeppelin.com/t/function-settokenuri-in-erc721-is-gone-with-pragma-0-8-0/5978/2
* @dev when minted for the first time, royalty recipient MUST be set to msg.sender, i.e. minter/artist;
* royalty receipient cannot and SHOULD not be set to an address different than the minter's such as a payment splitter or else `setRoyaltyRecipient` function will revert when called (unless receiver )
*/
function mint(
bytes32 _tokenURI,
uint24 royaltyBps_,
uint24[] calldata recipientsBps_,
address[] calldata royaltyRecipients_
) public onlyRole(MINTER_ROLE) {
/*----------------------------------------------------------*|
|* # MINT *|
|*----------------------------------------------------------*/
uint256 tokenId = _owners.length;
_mint(msg.sender, tokenId);
/*----------------------------------------------------------*|
|* # URI STORAGE *|
|*----------------------------------------------------------*/
_setTokenURI(tokenId, _tokenURI);
setRoyaltyInfo(
tokenId,
royaltyBps_,
recipientsBps_,
royaltyRecipients_
);
}
/**
* @dev Implements interface function {IERC721-mint}. Creates a new token for `msg.sender`. Its token ID will be automatically
* assigned (and available on the emitted {IERC721-Transfer} event), and the token
* URI autogenerated based on the base URI passed at construction.
* @dev it is assumed that the caller is the minter and thus the owner of the token,
* therefore instead of calling the internal _transfer function, the tansfer logic has been reimplemented in this function
* in order to avoid unnecessary `require` statements.
* @dev when minted for the first time, royalty recipient MUST be set to msg.sender, i.e. minter/artist;
* royalty receipient MUST not be set to an address different than the minter's such as a payment splitter or else this function will revert
*/
function mintAndTransfer(
address _to,
bytes32 _tokenURI,
uint24 royaltyBps_,
uint24[] calldata recipientsBps_,
address[] calldata royaltyRecipients_,
bytes calldata _data
) external onlyRole(MINTER_ROLE) {
/*----------------------------------------------------------*|
|* # MINT *|
|*----------------------------------------------------------*/
uint256 tokenId = _owners.length;
_mintAndTransfer(msg.sender, _to, tokenId, _data);
/*----------------------------------------------------------*|
|* # URI STORAGE *|
|*----------------------------------------------------------*/
_setTokenURI(tokenId, _tokenURI);
setRoyaltyInfo(
tokenId,
royaltyBps_,
recipientsBps_,
royaltyRecipients_
);
}
/*----------------------------------------------------------*|
|* # ROYALTY INFO SETTER *|
|*----------------------------------------------------------*/
function setRoyaltyInfo(
uint256 tokenId_,
uint24 royaltyBps_,
uint24[] calldata recipientsBps_,
address[] calldata royaltyRecipients_
) public onlyRole(MINTER_ROLE) {
_setRoyalties(
tokenId_,
royaltyBps_,
recipientsBps_,
royaltyRecipients_
);
}
/*----------------------------------------------------------*|
|* # URI STORAGE *|
|*----------------------------------------------------------*/
function setBaseURI(string calldata baseURI_) external {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender));
_setBaseURI(baseURI_);
}
/*----------------------------------------------------------*|
|* # OVERRIDES *|
|*----------------------------------------------------------*/
function _burn(
uint256 tokenId
) internal override(ERC721, ERC721URIStorage) {
super._burn(tokenId);
_resetTokenRoyalty(tokenId);
}
/*----------------------------------------------------------*|
|* # VIEW FUNCTIONS *|
|*----------------------------------------------------------*/
/**
* @dev same function interface as erc1155, so that external contracts, i.e. the marketplace, can check either erc without requiring an if/else statement
*/
function exists(uint256 _id) external view returns (bool) {
return _owners[_id] != address(0);
}
/*----------------------------------------------------------*|
|* # ERC-165 *|
|*----------------------------------------------------------*/
/**
* @dev See {IERC165-supportsInterface}.
* `supportsInterface()` was first implemented by all contracts and later all implementations removed, hardcoding interface IDs in order to save some gas and simplify the code.
*/
function supportsInterface(
bytes4 interfaceId
) external pure returns (bool) {
return
interfaceId == 0x80ac58cd || // type(IERC721).interfaceId
interfaceId == 0x780e9d63 || // type(IERC721Enumerable).interfaceId
interfaceId == 0x01ffc9a7 || // type(IERC165).interfaceId
interfaceId == 0x2a55205a || // type(IERC2981).interfaceId
interfaceId == 0x7965db0b; // type(IAccessControl).interfaceId;
}
/*----------------------------------------------------------*|
|* # INITIALIZATION *|
|*----------------------------------------------------------*/
/**
* @dev Grants `DEFAULT_ADMIN_ROLE` and `MINTER_ROLE` to the account that deploys the contract.
* `MINTER_ROLE` is needed in case the deployer may want to use or allow other accounts to mint on their self-sovreign collection
*/
function initialize(bytes calldata _data) external {
require(msg.sender == _FACTORY);
address owner;
(name, symbol, owner) = abi.decode(_data, (string, string, address));
// setRoyaltyInfo(royaltyRecipient, royaltyBps);
_grantRole(DEFAULT_ADMIN_ROLE, owner); // DEFAULT_ADMIN_ROLE is by default admin of all other roles, i.e. MINTER_ROLE, meaning it can assign MINTER_ROLE to other addresses _grantRole(MINTER_ROLE, msg.sender); // grant MINTER_ROLE to factory contract
_grantRole(MINTER_ROLE, owner); // grant MINTER_ROLE to owner, this way minting requires only checking for MINTER_ROLE rather than DEFAULT_ADMIN_ROLE, allowing the deployer/admin to grant MINTER_ROLE to other addresses.
}
constructor(address factory_) {
_FACTORY = factory_;
}
}
// File: /contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity 0.8.19;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(
uint256 value,
uint256 length
) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: /contracts/utils/DecodeTokenURI.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
/// @dev stripped down version of https://github.com/MrChico/verifyIPFS/
library DecodeTokenURI {
bytes constant ALPHABET =
"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
/**
* @dev Converts hex string to base 58
*/
function toBase58(
bytes memory source
) internal pure returns (bytes memory) {
if (source.length == 0) return new bytes(0);
uint8[] memory digits = new uint8[](64);
digits[0] = 0;
uint8 digitlength = 1;
for (uint256 i = 0; i < source.length; ++i) {
uint256 carry = uint8(source[i]);
for (uint256 j = 0; j < digitlength; ++j) {
carry += uint256(digits[j]) * 256;
digits[j] = uint8(carry % 58);
carry = carry / 58;
}
while (carry > 0) {
digits[digitlength] = uint8(carry % 58);
digitlength++;
carry = carry / 58;
}
}
return toAlphabet(reverse(truncate(digits, digitlength)));
}
function toAlphabet(
uint8[] memory indices
) private pure returns (bytes memory) {
bytes memory output = new bytes(indices.length);
for (uint256 i = 0; i < indices.length; i++) {
output[i] = ALPHABET[indices[i]];
}
return output;
}
function truncate(
uint8[] memory array,
uint8 length
) private pure returns (uint8[] memory) {
uint8[] memory output = new uint8[](length);
for (uint256 i = 0; i < length; i++) {
output[i] = array[i];
}
return output;
}
function reverse(
uint8[] memory input
) private pure returns (uint8[] memory) {
uint8[] memory output = new uint8[](input.length);
for (uint256 i = 0; i < input.length; i++) {
output[i] = input[input.length - 1 - i];
}
return output;
}
}
// File: /contracts/utils/Address.sol
/*----------------------------------------------------------*|
|* ███ ██ ██ ███ ██ ███████ █████ *|
|* ████ ██ ██ ████ ██ ██ ██ ██ *|
|* ██ ██ ██ ██ ██ ██ ██ █████ ███████ *|
|* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ *|
|* ██ ████ ██ ██ ████ ██ ██ ██ *|
|*----------------------------------------------------------*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
(bool success, ) = recipient.call{value: amount}("");
require(success);
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
*/
function functionCall(
address target,
bytes memory data
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.call(data);
return verifyCallResult(success, returndata);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
*/
function functionStaticCall(
address target,
bytes memory data
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata);
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
*/
function verifyCallResult(
bool success,
bytes memory returndata
) private pure returns (bytes memory) {
if (success) return returndata;
else revert();
}
/**
* @notice Query if a contract implements an interface, does not check ERC165 support
* @param account The address of the contract to query for support of an interface
* @param encodedParams prepare staticcall; encoded function selector and parameters
* @return true if the contract at account indicates support of the interface with
* identifier interfaceId, false otherwise.
* Note that this function returns the actual result of the query: it does not
* `revert`, It is up to the caller to decide what to do in these cases.
*/
function _staticcallUnchecked(
bytes memory encodedParams,
address account
) private view returns (bool) {
/**
* perform static call
* `staticcall(g, a, in, insize, out, outsize)` identical to `call(g, a, 0, in, insize, out, outsize)` but do not allow state modifications.
* call contract at address a with input mem[in…(in+insize)) providing g gas and v wei and output area mem[out…(out+outsize)) returning 0 on error (eg. out of gas) and 1 on success
* - https://docs.soliditylang.org/en/latest/yul.html#yul-call-return-area
* encoded params example: `bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId);`
*
*/
bool success;
uint256 returnSize;
uint256 returnValue;
assembly {
success := staticcall(
30000, // gas
account, // address
add(encodedParams, 0x20), // encoded encodedParams input and offset indicating at which bytes index the string starts. Here 0x20 (in hex) = 32 (in decimals). add(encodedParams, 32) it moves the pointer to the raw encodedParams skipping the size field.
mload(encodedParams), // input size. mload(encodedParams) read 32 bytes pointed by encodedParams (it returns the length of encodedParams)
0x00, // output
0x20 // output size
)
// Setting output and output size to 0 is due to historical reason. In early EVM versions you had to know the output size in advance, it was a limiting factor for some kind of operations (proxy contracts) so in the Bizantium fork new opcodes were introduced ReturnDataSize and ReturnDataCopy. This allow the caller to determine the output size after the call (ReturnDataSize) and allowing copying to memory (ReturnDataCopy).
returnSize := returndatasize() // how much memory do we need to allocate for the response
returnValue := mload(0x00)
}
return success && returnSize >= 0x20 && returnValue > 0;
}
}
// File: /contracts/token/common/ERC2981NSovreign.sol
/*----------------------------------------------------------*|
|* ███ ██ ██ ███ ██ ███████ █████ *|
|* ████ ██ ██ ████ ██ ██ ██ ██ *|
|* ██ ██ ██ ██ ██ ██ ██ █████ ███████ *|
|* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ *|
|* ██ ████ ██ ██ ████ ██ ██ ██ *|
|*----------------------------------------------------------*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
/*************************************************************
* @title ERC2981NSovreign *
* *
* @notice adds ERC2981 support to ERC-721. *
* *
* @dev Royalties BPS and recipient are token level *
* and may be set by owner in child contract by writing *
* directly to internal storage variables *
* *
* @dev Royalty information can be specified globally for *
* all token ids via {ERC2981-_setDefaultRoyalty}, and/or *
* individually for specific token ids via *
* {ERC2981-_setTokenRoyalty}. The latter takes precedence. *
* *
* @custom:security-contact tech@ninfa.io *
************************************************************/
contract ERC2981NSovreign {
struct Recipient {
address recipient;
uint24 bps;
}
struct RoyaltyInfoArray {
address[] recipients;
uint24[] bps;
uint24 royaltyBps;
}
/**
* @notice `royaltyRecipients` maps token ID to original artist, used for sending royalties to royaltyRecipients on all secondary sales.
* In self-sovreign editions there are token level royalty recipients
* @dev "If you plan on having a contract where NFTs are created by multiple authors AND they can update royalty details after minting,
* you will need to record the original author of each token." - https://forum.openzeppelin.com/t/setting-erc2981/16065/2
*/
mapping(uint256 => RoyaltyInfoArray) private _royaltyInfoArray;
uint24 private constant TOTAL_SHARES = 10000; // 10,000 = 100% (total sale price)
/**
* @notice Called with the sale price to determine how much royalty
* is owed and to whom.
* @param _tokenId - the NFT asset queried for royalty information
* @param _salePrice - the sale price of the NFT asset specified by _tokenId
* @return recipient - address of who should be sent the royalty payment
* @return royaltyAmount - the royalty payment amount for _salePrice
*/
function royaltyInfo(
uint256 _tokenId,
uint256 _salePrice
) external view returns (address recipient, uint256 royaltyAmount) {
recipient = _royaltyInfoArray[_tokenId].recipients[0];
royaltyAmount =
(_salePrice * _royaltyInfoArray[_tokenId].royaltyBps) /
TOTAL_SHARES;
}
function getRecipients(
uint256 _tokenId
) external view returns (Recipient[] memory) {
uint24[] memory _bps = _royaltyInfoArray[_tokenId].bps;
address[] memory _recipients = _royaltyInfoArray[_tokenId].recipients;
uint256 i = _recipients.length;
Recipient[] memory _royaltyInfo = new Recipient[](i);
do {
--i;
_royaltyInfo[i].recipient = _recipients[i];
_royaltyInfo[i].bps = _bps[i];
} while (i > 0);
return _royaltyInfo;
}
/**
* @notice Called with the sale price to determine how much royalty
* is owed and to whom.
* @param _tokenId - the NFT asset queried for royalty information
* @param royaltyBps_ - The actual royalty bps, calculated on the total sale amount
* @param recipientsBps_ - array containing the bps of each recipient. This bps is calculated on the royalty amount and the sum of this array must be 10000 (100%)
* @param royaltyRecipients_ - array of the recipients
*/
function _setRoyalties(
uint256 _tokenId,
uint24 royaltyBps_,
uint24[] calldata recipientsBps_,
address[] calldata royaltyRecipients_
) internal {
require(royaltyBps_ <= TOTAL_SHARES);
uint256 i = recipientsBps_.length;
require(i == royaltyRecipients_.length);
uint24 sum;
do {
unchecked {
--i;
sum += recipientsBps_[i];
}
} while (i > 0);
// the sum has to be equal to 100%
require(sum == TOTAL_SHARES);
_royaltyInfoArray[_tokenId].recipients = royaltyRecipients_;
_royaltyInfoArray[_tokenId].bps = recipientsBps_;
_royaltyInfoArray[_tokenId].royaltyBps = royaltyBps_;
}
function _resetTokenRoyalty(uint256 _tokenId) internal {
delete _royaltyInfoArray[_tokenId];
}
}
// File: /contracts/token/ERC721/extensions/ERC721URIStorage.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721URIStorage.sol)
pragma solidity 0.8.19;
import "../ERC721.sol";
import "../../../utils/DecodeTokenURI.sol";
/**
* @dev ERC721 token with storage based token URI management.
*/
abstract contract ERC721URIStorage is ERC721 {
using DecodeTokenURI for bytes;
/**
* @dev Hardcoded base URI in order to remove the need for a constructor, it can be set anytime by an admin (multisig).
*/
string private _baseTokenURI = "ipfs://";
/**
* @dev Optional mapping for token URIs
*/
mapping(uint256 => bytes32) private _tokenURIs;
// using Strings for uint256;
// // Optional mapping for token URIs
// mapping(uint256 => string) private _tokenURIs;
/**
* @dev See {IERC721Metadata-tokenURI}. It needs to be overridden because the new OZ contracts concatenate _baseURI + tokenId instead of _baseURI + _tokenURI
*/
function tokenURI(uint256 tokenId) external view returns (string memory) {
require(_exists(tokenId), "ERC721: nonexistent token");
return
string( // once hex encoded base58 is converted to string, we get the initial IPFS hash
abi.encodePacked(
_baseTokenURI,
abi
.encodePacked( // full bytes of base58 + hex encoded IPFS hash example.
bytes2(0x1220), // prepending 2 bytes IPFS hash identifier that was removed before storing the hash in order to fit in bytes32. 0x1220 is "Qm" base58 and hex encoded
_tokenURIs[tokenId] // tokenURI (IPFS hash) with its first 2 bytes truncated, base58 and hex encoded returned as bytes32
).toBase58()
)
);
}
/**
* @dev Sets `_tokenURI` as the tokenURI of `tokenId`.
* @dev only called when a new token is minted, therefore `require(_exists(tokenId))` check was removed
* Since Openzeppelin contracts v4.0 the _setTokenURI() function was removed, instead we must append the tokenID directly to this variable returned by _baseURI() internal function.
* This contract implements all the required functionality from ERC721URIStorage, which is the OpenZeppelin extension for supporting _setTokenURI.
* See https://forum.openzeppelin.com/t/why-doesnt-openzeppelin-erc721-contain-settokenuri/6373 and https://forum.openzeppelin.com/t/function-settokenuri-in-erc721-is-gone-with-pragma-0-8-0/5978/2
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _setTokenURI(uint256 tokenId, bytes32 _tokenURI) internal {
_tokenURIs[tokenId] = _tokenURI;
}
/**
* @notice Optional function to set the base URI
* @dev child contract MAY require access control to the external function implementation
*/
function _setBaseURI(string calldata baseURI_) internal {
// require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender));
_baseTokenURI = baseURI_;
}
/**
* @dev See {ERC721-_burn}.
*/
function _burn(uint256 _tokenId) internal virtual override {
super._burn(_tokenId);
delete _tokenURIs[_tokenId];
}
/**
* @dev See {ERC721-_burn}. This override additionally checks to see if a
* token-specific URI was set for the token, and if so, it deletes the token URI from
* the storage mapping.
*/
// function _burn(uint256 tokenId) internal virtual override {
// super._burn(tokenId);
// if (bytes(_tokenURIs[tokenId]).length != 0) {
// delete _tokenURIs[tokenId];
// }
// }
}
// File: /contracts/token/ERC721/extensions/ERC721Enumerable.sol
/*----------------------------------------------------------*|
|* ███ ██ ██ ███ ██ ███████ █████ *|
|* ████ ██ ██ ████ ██ ██ ██ ██ *|
|* ██ ██ ██ ██ ██ ██ ██ █████ ███████ *|
|* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ *|
|* ██ ████ ██ ██ ████ ██ ██ ██ *|
|*----------------------------------------------------------*/
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import "../ERC721.sol";
/*************************************************************
* @title ERC721Enumerable *
* *
* @dev This implements an optional extension of {ERC721} *
* defined in the EIP that adds enumerability of all *
* the token ids in the contract as well as all token *
* ids owned by each account. *
* *
* @custom:security-contact tech@ninfa.io *
************************************************************/
abstract contract ERC721Enumerable is ERC721 {
function tokenOfOwnerByIndex(
address _owner,
uint256 _index
) external view returns (uint256) {
require(_owner == ownerOf(_index));
return _index;
}
/// @notice Count NFTs tracked by this contract
/// @return A count of valid NFTs tracked by this contract, where each one of
/// them has an assigned and queryable owner not equal to the zero address
function totalSupply() external view returns (uint256) {
return _owners.length;
}
/// @notice Enumerate valid NFTs
/// @dev Throws if `_index` >= `totalSupply()`.
/// @param _index A counter less than `totalSupply()`
/// @return The token identifier for the `_index`th NFT,
/// (sort order not specified)
function tokenByIndex(uint256 _index) external view returns (uint256) {
require(_exists(_index));
return _index;
}
}
// File: /contracts/token/ERC721/extensions/ERC721Burnable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import "../ERC721.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721Burnable is ERC721 {
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 _tokenId) external {
require(_isApprovedOrOwner(msg.sender, _tokenId));
_burn(_tokenId);
}
}
// File: /contracts/token/ERC721/IERC721Receiver.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: /contracts/token/ERC721/ERC721.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
import "./IERC721Receiver.sol";
import "../../utils/Address.sol";
import "../../utils/Strings.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
* @dev removed constructor in order to allow name and symbol to be set by facory clones contracts via the `initialize` function instead.
* name and symbol should be set in most derived contract's constructor instead
*/
contract ERC721 {
using Address for address;
using Strings for uint256;
// Token name
string public name;
// Token symbol
string public symbol;
// array of token owners, accessed in {NinfaERC721-totalSupply}
address[] internal _owners;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(
address indexed from,
address indexed to,
uint256 indexed tokenId
);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(
address indexed owner,
address indexed approved,
uint256 indexed tokenId
);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(
address indexed owner,
address indexed operator,
bool approved
);
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view returns (address) {
address owner = _owners[tokenId];
require(owner != address(0));
return owner;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) external {
address owner = ownerOf(tokenId);
require(msg.sender == owner || _operatorApprovals[owner][msg.sender]);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view returns (address) {
require(_exists(tokenId));
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) external {
_setApprovalForAll(msg.sender, operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(
address owner,
address operator
) external view returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(msg.sender, tokenId));
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address _from,
address _to,
uint256 _tokenId,
bytes memory _data
) public {
require(_isApprovedOrOwner(msg.sender, _tokenId));
_safeTransfer(_from, _to, _tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address _from,
address _to,
uint256 _tokenId,
bytes memory _data
) private {
_transfer(_from, _to, _tokenId);
require(_checkOnERC721Received(_from, _to, _tokenId, _data));
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
* Emits a {Transfer} event.
* @param _tokenId MUST exist.
*/
function _burn(uint256 _tokenId) internal virtual {
// Clear approvals
delete _tokenApprovals[_tokenId];
delete _owners[_tokenId]; // equivalent to Openzeppelin's `_balances[owner] -= 1`
emit Transfer(msg.sender, address(0), _tokenId);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(
address spender,
uint256 tokenId
) internal view returns (bool) {
require(_exists(tokenId));
address owner = ownerOf(tokenId);
return (spender == owner ||
getApproved(tokenId) == spender ||
_operatorApprovals[owner][spender]);
}
/**
* @dev Mints `tokenId` and transfers it to `to`. Doesn't support safe transfers while minting, i.e. doesn't call onErc721Received function because when minting the receiver is msg.sender.
* We don’t need to zero address check because msg.sender is never the zero address.
* Because the tokenId is always incremented, we don’t need to check if the token exists already.
*
* Emits a {Transfer} event.
*/
function _mint(address _to, uint256 _tokenId) internal {
_owners.push(_to);
emit Transfer(address(0), _to, _tokenId);
}
/**
* @dev rather than calling the internal `_mint` function which would create a new owner like so `_owners.push(_to)`,
* however ownership will be reassigned/overridden with the buyer's address by the time the `lazyMint` function has finished executing
* therefore the `transfer` event is emitted in order to signal to DApps that a mint has occurred
*/
function _mintAndTransfer(
address _minter,
address _recipient,
uint256 _tokenId,
bytes calldata _data
) internal {
/*----------------------------------------------------------*|
|* # MINT *|
|*----------------------------------------------------------*/
emit Transfer(address(0), _minter, _tokenId);
/*----------------------------------------------------------*|
|* # SAFE TRANSFER *|
|*----------------------------------------------------------*/
_owners.push(_recipient);
emit Transfer(_minter, _recipient, _tokenId);
require(_checkOnERC721Received(_minter, _recipient, _tokenId, _data));
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address from, address to, uint256 tokenId) private {
require(ownerOf(tokenId) == from);
require(to != address(0));
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 _tokenId) private {
_tokenApprovals[_tokenId] = to;
emit Approval(ownerOf(_tokenId), to, _tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits a {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) private {
require(owner != operator);
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param _to target address that will receive the tokens
* @param _from address representing the previous owner of the given token ID
* @param _tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address _from,
address _to,
uint256 _tokenId,
bytes memory _data
) private returns (bool) {
if (_to.code.length > 0)
return
IERC721Receiver(_to).onERC721Received(
msg.sender, // operator
_from, // from
_tokenId,
_data
) == 0x150b7a02;
// IERC721Receiver.onERC721Received.selector,
else return true;
}
/**
* @dev WARNING this function SHOULD only be called by frontends due to unbound loop
* @dev public visibility as it is needed by
*/
function balanceOf(address owner) public view returns (uint256) {
uint256 count = 0;
uint256 totalSypply = _owners.length;
for (uint256 i; i < totalSypply; i++) {
if (owner == _owners[i]) count++;
}
return count;
}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfer(
address _from,
address _to,
uint256 _tokenId
) internal virtual {}
}
// File: /contracts/access/AccessControl.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;
/**
* @dev Contract module that allows children to implement role-based access
* control mechanisms. This is a lightweight version that doesn't allow enumerating role
* members except through off-chain means by accessing the contract event logs. Some
* applications may benefit from on-chain enumerability, for those cases see
* {AccessControlEnumerable}.
*
* Roles are referred to by their `bytes32` identifier. These should be exposed
* in the external API and be unique. The best way to achieve this is by
* using `public constant` hash digests:
*
* ```
* bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
* ```
*
* Roles can be used to represent a set of permissions. To restrict access to a
* function call, use {hasRole}:
*
* ```
* function foo() public {
* require(hasRole(MY_ROLE, msg.sender));
* ...
* }
* ```
*
* Roles can be granted and revoked dynamically via the {grantRole} and
* {revokeRole} functions. Each role has an associated admin role, and only
* accounts that have a role's admin role can call {grantRole} and {revokeRole}.
*
* By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
* that only accounts with this role will be able to grant or revoke other
* roles. More complex role relationships can be created by using
* {_setRoleAdmin}.
*
* WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
* grant and revoke this role. Extra precautions should be taken to secure
* accounts that have been granted it.
*/
abstract contract AccessControl {
/**
* @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
*
* `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
* {RoleAdminChanged} not being emitted signaling this.
*
* _Available since v3.1._
*/
event RoleAdminChanged(
bytes32 role,
bytes32 previousAdminRole,
bytes32 newAdminRole
);
/**
* @dev Emitted when `account` is granted `role`.
*
* `sender` is the account that originated the contract call, an admin role
* bearer except when using {AccessControl-_setupRole}.
*/
event RoleGranted(bytes32 role, address account, address sender);
/**
* @dev Emitted when `account` is revoked `role`.
*
* `sender` is the account that originated the contract call:
* - if using `revokeRole`, it is the admin role bearer
* - if using `renounceRole`, it is the role bearer (i.e. `account`)
*/
event RoleRevoked(bytes32 role, address account, address sender);
struct RoleData {
mapping(address => bool) members;
bytes32 adminRole;
}
mapping(bytes32 => RoleData) private _roles;
bytes32 internal constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Modifier that checks that an account has a specific role. Reverts
* with a standardized message including the required role.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role, msg.sender);
_;
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view {
if (!hasRole(role, account)) {
revert("Account is missing role");
}
}
/**
* @dev Returns the admin role that controls `role`. See {grantRole} and
* {revokeRole}.
*
* To change a role's admin, use {_setRoleAdmin}.
*/
function getRoleAdmin(bytes32 role) public view returns (bytes32) {
return _roles[role].adminRole;
}
/**
* @dev Grants `role` to `account`.
*
* If `account` had not been already granted `role`, emits a {RoleGranted}
* event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function grantRole(
bytes32 role,
address account
) external onlyRole(getRoleAdmin(role)) {
_grantRole(role, account);
}
/**
* @dev Revokes `role` from `account`.
*
* If `account` had been granted `role`, emits a {RoleRevoked} event.
*
* Requirements:
*
* - the caller must have ``role``'s admin role.
*/
function revokeRole(
bytes32 role,
address account
) external onlyRole(getRoleAdmin(role)) {
_revokeRole(role, account);
}
/**
* @dev Revokes `role` from the calling account.
*
* Roles are often managed via {grantRole} and {revokeRole}: this function's
* purpose is to provide a mechanism for accounts to lose their privileges
* if they are compromised (such as when a trusted device is misplaced).
*
* If the calling account had been revoked `role`, emits a {RoleRevoked}
* event.
*
* Requirements:
*
* - the caller must be `account`.
*/
function renounceRole(bytes32 role, address account) external {
require(account == msg.sender); // "AccessControl: can only renounce roles for self"
_revokeRole(role, account);
}
/**
* @dev Sets `adminRole` as ``role``'s admin role.
*
* Emits a {RoleAdminChanged} event.
*/
function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal {
bytes32 previousAdminRole = getRoleAdmin(role);
_roles[role].adminRole = adminRole;
emit RoleAdminChanged(role, previousAdminRole, adminRole);
}
/**
* @dev Grants `role` to `account`.
*
* Internal function without access restriction.
*/
function _grantRole(bytes32 role, address account) internal {
if (!hasRole(role, account)) {
_roles[role].members[account] = true;
emit RoleGranted(role, account, msg.sender);
}
}
/**
* @dev Revokes `role` from `account`.
*
* Internal function without access restriction.
*/
function _revokeRole(bytes32 role, address account) internal {
if (hasRole(role, account)) {
_roles[role].members[account] = false;
emit RoleRevoked(role, account, msg.sender);
}
}
}
| 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ERC2981NSovreign.Recipient[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_tokenURI","type":"bytes32"},{"internalType":"uint24","name":"royaltyBps_","type":"uint24"},{"internalType":"uint24[]","name":"recipientsBps_","type":"uint24[]"},{"internalType":"address[]","name":"royaltyRecipients_","type":"address[]"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"bytes32","name":"_tokenURI","type":"bytes32"},{"internalType":"uint24","name":"royaltyBps_","type":"uint24"},{"internalType":"uint24[]","name":"recipientsBps_","type":"uint24[]"},{"internalType":"address[]","name":"royaltyRecipients_","type":"address[]"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"mintAndTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURI_","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId_","type":"uint256"},{"internalType":"uint24","name":"royaltyBps_","type":"uint24"},{"internalType":"uint24[]","name":"recipientsBps_","type":"uint24[]"},{"internalType":"address[]","name":"royaltyRecipients_","type":"address[]"}],"name":"setRoyaltyInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.19+commit.7dd6d404 | false | 200 | 00000000000000000000000061b98acbfc23326cfe296f380b5aa3e5adcc5238 | Default | false | ||||
Forwarder | 0x2d547166b981be559a022106ba0b3d9907c0e4b7 | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
ERC721SeaDropCloneable | 0xa334e7072fdd7e8d2f8e98c40bf97039a5c8a202 | Solidity | // File: lib/ERC721A/contracts/IERC721A.sol
// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.2.2
// Creator: Chiru Labs
pragma solidity ^0.8.4;
/**
* @dev Interface of ERC721A.
*/
interface IERC721A {
/**
* The caller must own the token or be an approved operator.
*/
error ApprovalCallerNotOwnerNorApproved();
/**
* The token does not exist.
*/
error ApprovalQueryForNonexistentToken();
/**
* Cannot query the balance for the zero address.
*/
error BalanceQueryForZeroAddress();
/**
* Cannot mint to the zero address.
*/
error MintToZeroAddress();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* The token does not exist.
*/
error OwnerQueryForNonexistentToken();
/**
* The caller must own the token or be an approved operator.
*/
error TransferCallerNotOwnerNorApproved();
/**
* The token must be owned by `from`.
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the
* ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Cannot transfer to the zero address.
*/
error TransferToZeroAddress();
/**
* The token does not exist.
*/
error URIQueryForNonexistentToken();
/**
* The `quantity` minted with ERC2309 exceeds the safety limit.
*/
error MintERC2309QuantityExceedsLimit();
/**
* The `extraData` cannot be set on an unintialized ownership slot.
*/
error OwnershipNotInitializedForExtraData();
// =============================================================
// STRUCTS
// =============================================================
struct TokenOwnership {
// The address of the owner.
address addr;
// Stores the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
// Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
uint24 extraData;
}
// =============================================================
// TOKEN COUNTERS
// =============================================================
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() external view returns (uint256);
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
// =============================================================
// IERC721
// =============================================================
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables
* (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`,
* checking first that contract recipients are aware of the ERC721 protocol
* to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move
* this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom}
* whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
// =============================================================
// IERC2309
// =============================================================
/**
* @dev Emitted when tokens in `fromTokenId` to `toTokenId`
* (inclusive) is transferred from `from` to `to`, as defined in the
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
*
* See {_mintERC2309} for more details.
*/
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}
// File: lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
/**
* @dev Interface for the NFT Royalty Standard.
*
* A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
* support for royalty payments across all NFT marketplaces and ecosystem participants.
*
* _Available since v4.5._
*/
interface IERC2981 is IERC165 {
/**
* @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
* exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Internal function that returns the initialized version. Returns `_initialized`
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Internal function that returns the initialized version. Returns `_initializing`
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// File: lib/openzeppelin-contracts-upgradeable/contracts/security/ReentrancyGuardUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuardUpgradeable is Initializable {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
function __ReentrancyGuard_init() internal onlyInitializing {
__ReentrancyGuard_init_unchained();
}
function __ReentrancyGuard_init_unchained() internal onlyInitializing {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// File: lib/openzeppelin-contracts-upgradeable/contracts/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: lib/operator-filter-registry/src/IOperatorFilterRegistry.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
interface IOperatorFilterRegistry {
/**
* @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns
* true if supplied registrant address is not registered.
*/
function isOperatorAllowed(address registrant, address operator) external view returns (bool);
/**
* @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.
*/
function register(address registrant) external;
/**
* @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes.
*/
function registerAndSubscribe(address registrant, address subscription) external;
/**
* @notice Registers an address with the registry and copies the filtered operators and codeHashes from another
* address without subscribing.
*/
function registerAndCopyEntries(address registrant, address registrantToCopy) external;
/**
* @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.
* Note that this does not remove any filtered addresses or codeHashes.
* Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.
*/
function unregister(address addr) external;
/**
* @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.
*/
function updateOperator(address registrant, address operator, bool filtered) external;
/**
* @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.
*/
function updateOperators(address registrant, address[] calldata operators, bool filtered) external;
/**
* @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.
*/
function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;
/**
* @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.
*/
function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;
/**
* @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous
* subscription if present.
* Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,
* subscriptions will not be forwarded. Instead the former subscription's existing entries will still be
* used.
*/
function subscribe(address registrant, address registrantToSubscribe) external;
/**
* @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.
*/
function unsubscribe(address registrant, bool copyExistingEntries) external;
/**
* @notice Get the subscription address of a given registrant, if any.
*/
function subscriptionOf(address addr) external returns (address registrant);
/**
* @notice Get the set of addresses subscribed to a given registrant.
* Note that order is not guaranteed as updates are made.
*/
function subscribers(address registrant) external returns (address[] memory);
/**
* @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.
* Note that order is not guaranteed as updates are made.
*/
function subscriberAt(address registrant, uint256 index) external returns (address);
/**
* @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.
*/
function copyEntriesOf(address registrant, address registrantToCopy) external;
/**
* @notice Returns true if operator is filtered by a given address or its subscription.
*/
function isOperatorFiltered(address registrant, address operator) external returns (bool);
/**
* @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.
*/
function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);
/**
* @notice Returns true if a codeHash is filtered by a given address or its subscription.
*/
function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);
/**
* @notice Returns a list of filtered operators for a given address or its subscription.
*/
function filteredOperators(address addr) external returns (address[] memory);
/**
* @notice Returns the set of filtered codeHashes for a given address or its subscription.
* Note that order is not guaranteed as updates are made.
*/
function filteredCodeHashes(address addr) external returns (bytes32[] memory);
/**
* @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or
* its subscription.
* Note that order is not guaranteed as updates are made.
*/
function filteredOperatorAt(address registrant, uint256 index) external returns (address);
/**
* @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or
* its subscription.
* Note that order is not guaranteed as updates are made.
*/
function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);
/**
* @notice Returns true if an address has registered
*/
function isRegistered(address addr) external returns (bool);
/**
* @dev Convenience method to compute the code hash of an arbitrary contract
*/
function codeHashOf(address addr) external returns (bytes32);
}
// File: lib/operator-filter-registry/src/lib/Constants.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
address constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;
address constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;
// File: lib/operator-filter-registry/src/upgradeable/DefaultOperatorFiltererUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {OperatorFiltererUpgradeable} from "./OperatorFiltererUpgradeable.sol";
import {CANONICAL_CORI_SUBSCRIPTION} from "../lib/Constants.sol";
/**
* @title DefaultOperatorFiltererUpgradeable
* @notice Inherits from OperatorFiltererUpgradeable and automatically subscribes to the default OpenSea subscription
* when the init function is called.
*/
abstract contract DefaultOperatorFiltererUpgradeable is OperatorFiltererUpgradeable {
/// @dev The upgradeable initialize function that should be called when the contract is being deployed.
function __DefaultOperatorFilterer_init() internal onlyInitializing {
OperatorFiltererUpgradeable.__OperatorFilterer_init(CANONICAL_CORI_SUBSCRIPTION, true);
}
}
// File: lib/operator-filter-registry/src/upgradeable/OperatorFiltererUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {IOperatorFilterRegistry} from "../IOperatorFilterRegistry.sol";
import {Initializable} from "../../../../lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol";
/**
* @title OperatorFiltererUpgradeable
* @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
* registrant's entries in the OperatorFilterRegistry when the init function is called.
* @dev This smart contract is meant to be inherited by token contracts so they can use the following:
* - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
* - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
*/
abstract contract OperatorFiltererUpgradeable is Initializable {
/// @notice Emitted when an operator is not allowed.
error OperatorNotAllowed(address operator);
IOperatorFilterRegistry constant OPERATOR_FILTER_REGISTRY =
IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);
/// @dev The upgradeable initialize function that should be called when the contract is being upgraded.
function __OperatorFilterer_init(address subscriptionOrRegistrantToCopy, bool subscribe)
internal
onlyInitializing
{
// If an inheriting token contract is deployed to a network without the registry deployed, the modifier
// will not revert, but the contract will need to be registered with the registry once it is deployed in
// order for the modifier to filter addresses.
if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
if (!OPERATOR_FILTER_REGISTRY.isRegistered(address(this))) {
if (subscribe) {
OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
} else {
if (subscriptionOrRegistrantToCopy != address(0)) {
OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
} else {
OPERATOR_FILTER_REGISTRY.register(address(this));
}
}
}
}
}
/**
* @dev A helper modifier to check if the operator is allowed.
*/
modifier onlyAllowedOperator(address from) virtual {
// Allow spending tokens from addresses with balance
// Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
// from an EOA.
if (from != msg.sender) {
_checkFilterOperator(msg.sender);
}
_;
}
/**
* @dev A helper modifier to check if the operator approval is allowed.
*/
modifier onlyAllowedOperatorApproval(address operator) virtual {
_checkFilterOperator(operator);
_;
}
/**
* @dev A helper function to check if the operator is allowed.
*/
function _checkFilterOperator(address operator) internal view virtual {
// Check registry code length to facilitate testing in environments without a deployed registry.
if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
// under normal circumstances, this function will revert rather than return false, but inheriting or
// upgraded contracts may specify their own OperatorFilterRegistry implementations, which may behave
// differently
if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
revert OperatorNotAllowed(operator);
}
}
}
}
// File: lib/utility-contracts/src/ConstructorInitializable.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;
/**
* @author emo.eth
* @notice Abstract smart contract that provides an onlyUninitialized modifier which only allows calling when
* from within a constructor of some sort, whether directly instantiating an inherting contract,
* or when delegatecalling from a proxy
*/
abstract contract ConstructorInitializable {
error AlreadyInitialized();
modifier onlyConstructor() {
if (address(this).code.length != 0) {
revert AlreadyInitialized();
}
_;
}
}
// File: lib/utility-contracts/src/TwoStepOwnable.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.4;
import {ConstructorInitializable} from "./ConstructorInitializable.sol";
/**
@notice A two-step extension of Ownable, where the new owner must claim ownership of the contract after owner initiates transfer
Owner can cancel the transfer at any point before the new owner claims ownership.
Helpful in guarding against transferring ownership to an address that is unable to act as the Owner.
*/
abstract contract TwoStepOwnable is ConstructorInitializable {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
address internal potentialOwner;
event PotentialOwnerUpdated(address newPotentialAdministrator);
error NewOwnerIsZeroAddress();
error NotNextOwner();
error OnlyOwner();
modifier onlyOwner() {
_checkOwner();
_;
}
constructor() {
_initialize();
}
function _initialize() private onlyConstructor {
_transferOwnership(msg.sender);
}
///@notice Initiate ownership transfer to newPotentialOwner. Note: new owner will have to manually acceptOwnership
///@param newPotentialOwner address of potential new owner
function transferOwnership(address newPotentialOwner)
public
virtual
onlyOwner
{
if (newPotentialOwner == address(0)) {
revert NewOwnerIsZeroAddress();
}
potentialOwner = newPotentialOwner;
emit PotentialOwnerUpdated(newPotentialOwner);
}
///@notice Claim ownership of smart contract, after the current owner has initiated the process with transferOwnership
function acceptOwnership() public virtual {
address _potentialOwner = potentialOwner;
if (msg.sender != _potentialOwner) {
revert NotNextOwner();
}
delete potentialOwner;
emit PotentialOwnerUpdated(address(0));
_transferOwnership(_potentialOwner);
}
///@notice cancel ownership transfer
function cancelOwnershipTransfer() public virtual onlyOwner {
delete potentialOwner;
emit PotentialOwnerUpdated(address(0));
}
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (_owner != msg.sender) {
revert OnlyOwner();
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: src/clones/ERC721ACloneable.sol
// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.2.2
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import { IERC721A } from "ERC721A/IERC721A.sol";
import {
Initializable
} from "openzeppelin-contracts-upgradeable/proxy/utils/Initializable.sol";
/**
* @dev Interface of ERC721 token receiver.
*/
interface ERC721A__IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
/**
* @title ERC721A
*
* @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
* Non-Fungible Token Standard, including the Metadata extension.
* Optimized for lower gas during batch mints.
*
* Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
* starting from `_startTokenId()`.
*
* Assumptions:
*
* - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
* - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
*/
contract ERC721ACloneable is IERC721A, Initializable {
// Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
struct TokenApprovalRef {
address value;
}
// =============================================================
// CONSTANTS
// =============================================================
// Mask of an entry in packed address data.
uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;
// The bit position of `numberMinted` in packed address data.
uint256 private constant _BITPOS_NUMBER_MINTED = 64;
// The bit position of `numberBurned` in packed address data.
uint256 private constant _BITPOS_NUMBER_BURNED = 128;
// The bit position of `aux` in packed address data.
uint256 private constant _BITPOS_AUX = 192;
// Mask of all 256 bits in packed address data except the 64 bits for `aux`.
uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;
// The bit position of `startTimestamp` in packed ownership.
uint256 private constant _BITPOS_START_TIMESTAMP = 160;
// The bit mask of the `burned` bit in packed ownership.
uint256 private constant _BITMASK_BURNED = 1 << 224;
// The bit position of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;
// The bit mask of the `nextInitialized` bit in packed ownership.
uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;
// The bit position of `extraData` in packed ownership.
uint256 private constant _BITPOS_EXTRA_DATA = 232;
// Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;
// The mask of the lower 160 bits for addresses.
uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;
// The maximum `quantity` that can be minted with {_mintERC2309}.
// This limit is to prevent overflows on the address data entries.
// For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
// is required to cause an overflow, which is unrealistic.
uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;
// The `Transfer` event signature is given by:
// `keccak256(bytes("Transfer(address,address,uint256)"))`.
bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
// =============================================================
// STORAGE
// =============================================================
// The next token ID to be minted.
uint256 private _currentIndex;
// The number of tokens burned.
uint256 private _burnCounter;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned.
// See {_packedOwnershipOf} implementation for details.
//
// Bits Layout:
// - [0..159] `addr`
// - [160..223] `startTimestamp`
// - [224] `burned`
// - [225] `nextInitialized`
// - [232..255] `extraData`
mapping(uint256 => uint256) private _packedOwnerships;
// Mapping owner address to address data.
//
// Bits Layout:
// - [0..63] `balance`
// - [64..127] `numberMinted`
// - [128..191] `numberBurned`
// - [192..255] `aux`
mapping(address => uint256) private _packedAddressData;
// Mapping from token ID to approved address.
mapping(uint256 => TokenApprovalRef) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
// =============================================================
// CONSTRUCTOR
// =============================================================
function __ERC721ACloneable__init(
string memory name_,
string memory symbol_
) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
// =============================================================
// TOKEN COUNTING OPERATIONS
// =============================================================
/**
* @dev Returns the starting token ID.
* To change the starting token ID, please override this function.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Returns the next token ID to be minted.
*/
function _nextTokenId() internal view virtual returns (uint256) {
return _currentIndex;
}
/**
* @dev Returns the total number of tokens in existence.
* Burned tokens will reduce the count.
* To get the total number of tokens minted, please see {_totalMinted}.
*/
function totalSupply() public view virtual override returns (uint256) {
// Counter underflow is impossible as _burnCounter cannot be incremented
// more than `_currentIndex - _startTokenId()` times.
unchecked {
return _currentIndex - _burnCounter - _startTokenId();
}
}
/**
* @dev Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view virtual returns (uint256) {
// Counter underflow is impossible as `_currentIndex` does not decrement,
// and it is initialized to `_startTokenId()`.
unchecked {
return _currentIndex - _startTokenId();
}
}
/**
* @dev Returns the total number of tokens burned.
*/
function _totalBurned() internal view virtual returns (uint256) {
return _burnCounter;
}
// =============================================================
// ADDRESS DATA OPERATIONS
// =============================================================
/**
* @dev Returns the number of tokens in `owner`'s account.
*/
function balanceOf(address owner)
public
view
virtual
override
returns (uint256)
{
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens minted by `owner`.
*/
function _numberMinted(address owner) internal view returns (uint256) {
return
(_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) &
_BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the number of tokens burned by or on behalf of `owner`.
*/
function _numberBurned(address owner) internal view returns (uint256) {
return
(_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) &
_BITMASK_ADDRESS_DATA_ENTRY;
}
/**
* Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
*/
function _getAux(address owner) internal view returns (uint64) {
return uint64(_packedAddressData[owner] >> _BITPOS_AUX);
}
/**
* Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).
* If there are multiple variables, please pack them into a uint64.
*/
function _setAux(address owner, uint64 aux) internal virtual {
uint256 packed = _packedAddressData[owner];
uint256 auxCasted;
// Cast `aux` with assembly to avoid redundant masking.
assembly {
auxCasted := aux
}
packed =
(packed & _BITMASK_AUX_COMPLEMENT) |
(auxCasted << _BITPOS_AUX);
_packedAddressData[owner] = packed;
}
// =============================================================
// IERC165
// =============================================================
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* to learn more about how these ids are created.
*
* This function call must use less than 30000 gas.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override
returns (bool)
{
// The interface IDs are constants representing the first 4 bytes
// of the XOR of all function selectors in the interface.
// See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
// (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
return
interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
}
// =============================================================
// IERC721Metadata
// =============================================================
/**
* @dev Returns the token collection name.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the token collection symbol.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory baseURI = _baseURI();
return
bytes(baseURI).length != 0
? string(abi.encodePacked(baseURI, _toString(tokenId)))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, it can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
// =============================================================
// OWNERSHIPS OPERATIONS
// =============================================================
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId)
public
view
virtual
override
returns (address)
{
return address(uint160(_packedOwnershipOf(tokenId)));
}
/**
* @dev Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around over time.
*/
function _ownershipOf(uint256 tokenId)
internal
view
virtual
returns (TokenOwnership memory)
{
return _unpackedOwnership(_packedOwnershipOf(tokenId));
}
/**
* @dev Returns the unpacked `TokenOwnership` struct at `index`.
*/
function _ownershipAt(uint256 index)
internal
view
virtual
returns (TokenOwnership memory)
{
return _unpackedOwnership(_packedOwnerships[index]);
}
/**
* @dev Initializes the ownership slot minted at `index` for efficiency purposes.
*/
function _initializeOwnershipAt(uint256 index) internal virtual {
if (_packedOwnerships[index] == 0) {
_packedOwnerships[index] = _packedOwnershipOf(index);
}
}
/**
* Returns the packed ownership data of `tokenId`.
*/
function _packedOwnershipOf(uint256 tokenId)
private
view
returns (uint256)
{
uint256 curr = tokenId;
unchecked {
if (_startTokenId() <= curr) {
if (curr < _currentIndex) {
uint256 packed = _packedOwnerships[curr];
// If not burned.
if (packed & _BITMASK_BURNED == 0) {
// Invariant:
// There will always be an initialized ownership slot
// (i.e. `ownership.addr != address(0) && ownership.burned == false`)
// before an unintialized ownership slot
// (i.e. `ownership.addr == address(0) && ownership.burned == false`)
// Hence, `curr` will not underflow.
//
// We can directly compare the packed value.
// If the address is zero, packed will be zero.
while (packed == 0) {
packed = _packedOwnerships[--curr];
}
return packed;
}
}
}
}
revert OwnerQueryForNonexistentToken();
}
/**
* @dev Returns the unpacked `TokenOwnership` struct from `packed`.
*/
function _unpackedOwnership(uint256 packed)
private
pure
returns (TokenOwnership memory ownership)
{
ownership.addr = address(uint160(packed));
ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
ownership.burned = packed & _BITMASK_BURNED != 0;
ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
}
/**
* @dev Packs ownership data into a single uint256.
*/
function _packOwnershipData(address owner, uint256 flags)
private
view
returns (uint256 result)
{
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
result := or(
owner,
or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)
)
}
}
/**
* @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
*/
function _nextInitializedFlag(uint256 quantity)
private
pure
returns (uint256 result)
{
// For branchless setting of the `nextInitialized` flag.
assembly {
// `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
}
}
// =============================================================
// APPROVAL OPERATIONS
// =============================================================
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ownerOf(tokenId);
if (_msgSenderERC721A() != owner) {
if (!isApprovedForAll(owner, _msgSenderERC721A())) {
revert ApprovalCallerNotOwnerNorApproved();
}
}
_tokenApprovals[tokenId].value = to;
emit Approval(owner, to, tokenId);
}
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId)
public
view
virtual
override
returns (address)
{
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId].value;
}
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved)
public
virtual
override
{
_operatorApprovals[_msgSenderERC721A()][operator] = approved;
emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
}
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted. See {_mint}.
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return
_startTokenId() <= tokenId &&
tokenId < _currentIndex && // If within bounds,
_packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.
}
/**
* @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
*/
function _isSenderApprovedOrOwner(
address approvedAddress,
address owner,
address msgSender
) private pure returns (bool result) {
assembly {
// Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
owner := and(owner, _BITMASK_ADDRESS)
// Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
msgSender := and(msgSender, _BITMASK_ADDRESS)
// `msgSender == owner || msgSender == approvedAddress`.
result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
}
}
/**
* @dev Returns the storage slot and value for the approved address of `tokenId`.
*/
function _getApprovedSlotAndAddress(uint256 tokenId)
private
view
returns (uint256 approvedAddressSlot, address approvedAddress)
{
TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
// The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
assembly {
approvedAddressSlot := tokenApproval.slot
approvedAddress := sload(approvedAddressSlot)
}
}
// =============================================================
// TRANSFER OPERATIONS
// =============================================================
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
if (address(uint160(prevOwnershipPacked)) != from)
revert TransferFromIncorrectOwner();
(
uint256 approvedAddressSlot,
address approvedAddress
) = _getApprovedSlotAndAddress(tokenId);
// The nested ifs save around 20+ gas over a compound boolean condition.
if (
!_isSenderApprovedOrOwner(
approvedAddress,
from,
_msgSenderERC721A()
)
) {
if (!isApprovedForAll(from, _msgSenderERC721A()))
revert TransferCallerNotOwnerNorApproved();
}
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// We can directly increment and decrement the balances.
--_packedAddressData[from]; // Updates: `balance -= 1`.
++_packedAddressData[to]; // Updates: `balance += 1`.
// Updates:
// - `address` to the next owner.
// - `startTimestamp` to the timestamp of transfering.
// - `burned` to `false`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
to,
_BITMASK_NEXT_INITIALIZED |
_nextExtraData(from, to, prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
transferFrom(from, to, tokenId);
if (to.code.length != 0) {
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
}
/**
* @dev Hook that is called before a set of serially-ordered token IDs
* are about to be transferred. This includes minting.
* And also called before burning one token.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token IDs
* have been transferred. This includes minting.
* And also called after one token has been burned.
*
* `startTokenId` - the first token ID to be transferred.
* `quantity` - the amount to be transferred.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
* transferred to `to`.
* - When `from` is zero, `tokenId` has been minted for `to`.
* - When `to` is zero, `tokenId` has been burned by `from`.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
*
* `from` - Previous owner of the given token ID.
* `to` - Target address that will receive the token.
* `tokenId` - Token ID to be transferred.
* `_data` - Optional data to send along with the call.
*
* Returns whether the call correctly returned the expected magic value.
*/
function _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try
ERC721A__IERC721Receiver(to).onERC721Received(
_msgSenderERC721A(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return
retval ==
ERC721A__IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
// =============================================================
// MINT OPERATIONS
// =============================================================
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event for each mint.
*/
function _mint(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// `balance` and `numberMinted` have a maximum limit of 2**64.
// `tokenId` has a maximum limit of 2**256.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] +=
quantity *
((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) |
_nextExtraData(address(0), to, 0)
);
uint256 toMasked;
uint256 end = startTokenId + quantity;
// Use assembly to loop and emit the `Transfer` event for gas savings.
// The duplicated `log4` removes an extra check and reduces stack juggling.
// The assembly, together with the surrounding Solidity code, have been
// delicately arranged to nudge the compiler into producing optimized opcodes.
assembly {
// Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
toMasked := and(to, _BITMASK_ADDRESS)
// Emit the `Transfer` event.
log4(
0, // Start of data (0, since no data).
0, // End of data (0, since no data).
_TRANSFER_EVENT_SIGNATURE, // Signature.
0, // `address(0)`.
toMasked, // `to`.
startTokenId // `tokenId`.
)
// The `iszero(eq(,))` check ensures that large values of `quantity`
// that overflows uint256 will make the loop run out of gas.
// The compiler will optimize the `iszero` away for performance.
for {
let tokenId := add(startTokenId, 1)
} iszero(eq(tokenId, end)) {
tokenId := add(tokenId, 1)
} {
// Emit the `Transfer` event. Similar to above.
log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)
}
}
if (toMasked == 0) revert MintToZeroAddress();
_currentIndex = end;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* This function is intended for efficient minting only during contract creation.
*
* It emits only one {ConsecutiveTransfer} as defined in
* [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
* instead of a sequence of {Transfer} event(s).
*
* Calling this function outside of contract creation WILL make your contract
* non-compliant with the ERC721 standard.
* For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
* {ConsecutiveTransfer} event is only permissible during contract creation.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {ConsecutiveTransfer} event.
*/
function _mintERC2309(address to, uint256 quantity) internal virtual {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT)
revert MintERC2309QuantityExceedsLimit();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are unrealistic due to the above check for `quantity` to be below the limit.
unchecked {
// Updates:
// - `balance += quantity`.
// - `numberMinted += quantity`.
//
// We can directly add to the `balance` and `numberMinted`.
_packedAddressData[to] +=
quantity *
((1 << _BITPOS_NUMBER_MINTED) | 1);
// Updates:
// - `address` to the owner.
// - `startTimestamp` to the timestamp of minting.
// - `burned` to `false`.
// - `nextInitialized` to `quantity == 1`.
_packedOwnerships[startTokenId] = _packOwnershipData(
to,
_nextInitializedFlag(quantity) |
_nextExtraData(address(0), to, 0)
);
emit ConsecutiveTransfer(
startTokenId,
startTokenId + quantity - 1,
address(0),
to
);
_currentIndex = startTokenId + quantity;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* See {_mint}.
*
* Emits a {Transfer} event for each mint.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal virtual {
_mint(to, quantity);
unchecked {
if (to.code.length != 0) {
uint256 end = _currentIndex;
uint256 index = end - quantity;
do {
if (
!_checkContractOnERC721Received(
address(0),
to,
index++,
_data
)
) {
revert TransferToNonERC721ReceiverImplementer();
}
} while (index < end);
// Reentrancy protection.
if (_currentIndex != end) revert();
}
}
}
/**
* @dev Equivalent to `_safeMint(to, quantity, '')`.
*/
function _safeMint(address to, uint256 quantity) internal virtual {
_safeMint(to, quantity, "");
}
// =============================================================
// BURN OPERATIONS
// =============================================================
/**
* @dev Equivalent to `_burn(tokenId, false)`.
*/
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);
address from = address(uint160(prevOwnershipPacked));
(
uint256 approvedAddressSlot,
address approvedAddress
) = _getApprovedSlotAndAddress(tokenId);
if (approvalCheck) {
// The nested ifs save around 20+ gas over a compound boolean condition.
if (
!_isSenderApprovedOrOwner(
approvedAddress,
from,
_msgSenderERC721A()
)
) {
if (!isApprovedForAll(from, _msgSenderERC721A()))
revert TransferCallerNotOwnerNorApproved();
}
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
// Clear approvals from the previous owner.
assembly {
if approvedAddress {
// This is equivalent to `delete _tokenApprovals[tokenId]`.
sstore(approvedAddressSlot, 0)
}
}
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.
unchecked {
// Updates:
// - `balance -= 1`.
// - `numberBurned += 1`.
//
// We can directly decrement the balance, and increment the number burned.
// This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
_packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;
// Updates:
// - `address` to the last owner.
// - `startTimestamp` to the timestamp of burning.
// - `burned` to `true`.
// - `nextInitialized` to `true`.
_packedOwnerships[tokenId] = _packOwnershipData(
from,
(_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) |
_nextExtraData(from, address(0), prevOwnershipPacked)
);
// If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
uint256 nextTokenId = tokenId + 1;
// If the next slot's address is zero and not burned (i.e. packed value is zero).
if (_packedOwnerships[nextTokenId] == 0) {
// If the next slot is within bounds.
if (nextTokenId != _currentIndex) {
// Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
_packedOwnerships[nextTokenId] = prevOwnershipPacked;
}
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
// Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
unchecked {
_burnCounter++;
}
}
// =============================================================
// EXTRA DATA OPERATIONS
// =============================================================
/**
* @dev Directly sets the extra data for the ownership data `index`.
*/
function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
uint256 packed = _packedOwnerships[index];
if (packed == 0) revert OwnershipNotInitializedForExtraData();
uint256 extraDataCasted;
// Cast `extraData` with assembly to avoid redundant masking.
assembly {
extraDataCasted := extraData
}
packed =
(packed & _BITMASK_EXTRA_DATA_COMPLEMENT) |
(extraDataCasted << _BITPOS_EXTRA_DATA);
_packedOwnerships[index] = packed;
}
/**
* @dev Called during each token transfer to set the 24bit `extraData` field.
* Intended to be overridden by the cosumer contract.
*
* `previousExtraData` - the value of `extraData` before transfer.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _extraData(
address from,
address to,
uint24 previousExtraData
) internal view virtual returns (uint24) {}
/**
* @dev Returns the next extra data for the packed ownership data.
* The returned result is shifted into position.
*/
function _nextExtraData(
address from,
address to,
uint256 prevOwnershipPacked
) private view returns (uint256) {
uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
}
// =============================================================
// OTHER OPERATIONS
// =============================================================
/**
* @dev Returns the message sender (defaults to `msg.sender`).
*
* If you are writing GSN compatible contracts, you need to override this function.
*/
function _msgSenderERC721A() internal view virtual returns (address) {
return msg.sender;
}
/**
* @dev Converts a uint256 to its ASCII string decimal representation.
*/
function _toString(uint256 value)
internal
pure
virtual
returns (string memory str)
{
assembly {
// The maximum value of a uint256 contains 78 digits (1 byte per digit), but
// we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
// We will need 1 word for the trailing zeros padding, 1 word for the length,
// and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
let m := add(mload(0x40), 0xa0)
// Update the free memory pointer to allocate.
mstore(0x40, m)
// Assign the `str` to the end.
str := sub(m, 0x20)
// Zeroize the slot after the string.
mstore(str, 0)
// Cache the end of the memory to calculate the length later.
let end := str
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
// prettier-ignore
for { let temp := value } 1 {} {
str := sub(str, 1)
// Write the character to the pointer.
// The ASCII index of the '0' character is 48.
mstore8(str, add(48, mod(temp, 10)))
// Keep dividing `temp` until zero.
temp := div(temp, 10)
// prettier-ignore
if iszero(temp) { break }
}
let length := sub(end, str)
// Move the pointer 32 bytes leftwards to make room for the length.
str := sub(str, 0x20)
// Store the length.
mstore(str, length)
}
}
}
// File: src/clones/ERC721ContractMetadataCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {
ISeaDropTokenContractMetadata
} from "../interfaces/ISeaDropTokenContractMetadata.sol";
import { ERC721ACloneable } from "./ERC721ACloneable.sol";
import { TwoStepOwnable } from "utility-contracts/TwoStepOwnable.sol";
import { IERC2981 } from "openzeppelin-contracts/interfaces/IERC2981.sol";
import {
IERC165
} from "openzeppelin-contracts/utils/introspection/IERC165.sol";
/**
* @title ERC721ContractMetadataCloneable
* @author James Wenzel (emo.eth)
* @author Ryan Ghods (ralxz.eth)
* @author Stephan Min (stephanm.eth)
* @notice ERC721ContractMetadata is a token contract that extends ERC721A
* with additional metadata and ownership capabilities.
*/
contract ERC721ContractMetadataCloneable is
ERC721ACloneable,
TwoStepOwnable,
ISeaDropTokenContractMetadata
{
/// @notice Track the max supply.
uint256 _maxSupply;
/// @notice Track the base URI for token metadata.
string _tokenBaseURI;
/// @notice Track the contract URI for contract metadata.
string _contractURI;
/// @notice Track the provenance hash for guaranteeing metadata order
/// for random reveals.
bytes32 _provenanceHash;
/// @notice Track the royalty info: address to receive royalties, and
/// royalty basis points.
RoyaltyInfo _royaltyInfo;
/**
* @dev Reverts if the sender is not the owner or the contract itself.
* This function is inlined instead of being a modifier
* to save contract space from being inlined N times.
*/
function _onlyOwnerOrSelf() internal view {
if (
_cast(msg.sender == owner()) | _cast(msg.sender == address(this)) ==
0
) {
revert OnlyOwner();
}
}
/**
* @notice Sets the base URI for the token metadata and emits an event.
*
* @param newBaseURI The new base URI to set.
*/
function setBaseURI(string calldata newBaseURI) external override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Set the new base URI.
_tokenBaseURI = newBaseURI;
// Emit an event with the update.
if (totalSupply() != 0) {
emit BatchMetadataUpdate(1, _nextTokenId() - 1);
}
}
/**
* @notice Sets the contract URI for contract metadata.
*
* @param newContractURI The new contract URI.
*/
function setContractURI(string calldata newContractURI) external override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Set the new contract URI.
_contractURI = newContractURI;
// Emit an event with the update.
emit ContractURIUpdated(newContractURI);
}
/**
* @notice Emit an event notifying metadata updates for
* a range of token ids, according to EIP-4906.
*
* @param fromTokenId The start token id.
* @param toTokenId The end token id.
*/
function emitBatchMetadataUpdate(uint256 fromTokenId, uint256 toTokenId)
external
{
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Emit an event with the update.
emit BatchMetadataUpdate(fromTokenId, toTokenId);
}
/**
* @notice Sets the max token supply and emits an event.
*
* @param newMaxSupply The new max supply to set.
*/
function setMaxSupply(uint256 newMaxSupply) external {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the max supply does not exceed the maximum value of uint64.
if (newMaxSupply > 2**64 - 1) {
revert CannotExceedMaxSupplyOfUint64(newMaxSupply);
}
// Set the new max supply.
_maxSupply = newMaxSupply;
// Emit an event with the update.
emit MaxSupplyUpdated(newMaxSupply);
}
/**
* @notice Sets the provenance hash and emits an event.
*
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it has not been
* modified after mint started.
*
* This function will revert after the first item has been minted.
*
* @param newProvenanceHash The new provenance hash to set.
*/
function setProvenanceHash(bytes32 newProvenanceHash) external {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Revert if any items have been minted.
if (_totalMinted() > 0) {
revert ProvenanceHashCannotBeSetAfterMintStarted();
}
// Keep track of the old provenance hash for emitting with the event.
bytes32 oldProvenanceHash = _provenanceHash;
// Set the new provenance hash.
_provenanceHash = newProvenanceHash;
// Emit an event with the update.
emit ProvenanceHashUpdated(oldProvenanceHash, newProvenanceHash);
}
/**
* @notice Sets the address and basis points for royalties.
*
* @param newInfo The struct to configure royalties.
*/
function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Revert if the new royalty address is the zero address.
if (newInfo.royaltyAddress == address(0)) {
revert RoyaltyAddressCannotBeZeroAddress();
}
// Revert if the new basis points is greater than 10_000.
if (newInfo.royaltyBps > 10_000) {
revert InvalidRoyaltyBasisPoints(newInfo.royaltyBps);
}
// Set the new royalty info.
_royaltyInfo = newInfo;
// Emit an event with the updated params.
emit RoyaltyInfoUpdated(newInfo.royaltyAddress, newInfo.royaltyBps);
}
/**
* @notice Returns the base URI for token metadata.
*/
function baseURI() external view override returns (string memory) {
return _baseURI();
}
/**
* @notice Returns the base URI for the contract, which ERC721A uses
* to return tokenURI.
*/
function _baseURI() internal view virtual override returns (string memory) {
return _tokenBaseURI;
}
/**
* @notice Returns the contract URI for contract metadata.
*/
function contractURI() external view override returns (string memory) {
return _contractURI;
}
/**
* @notice Returns the max token supply.
*/
function maxSupply() public view returns (uint256) {
return _maxSupply;
}
/**
* @notice Returns the provenance hash.
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it is unmodified
* after mint has started.
*/
function provenanceHash() external view override returns (bytes32) {
return _provenanceHash;
}
/**
* @notice Returns the address that receives royalties.
*/
function royaltyAddress() external view returns (address) {
return _royaltyInfo.royaltyAddress;
}
/**
* @notice Returns the royalty basis points out of 10_000.
*/
function royaltyBasisPoints() external view returns (uint256) {
return _royaltyInfo.royaltyBps;
}
/**
* @notice Called with the sale price to determine how much royalty
* is owed and to whom.
*
* @ param _tokenId The NFT asset queried for royalty information.
* @param _salePrice The sale price of the NFT asset specified by
* _tokenId.
*
* @return receiver Address of who should be sent the royalty payment.
* @return royaltyAmount The royalty payment amount for _salePrice.
*/
function royaltyInfo(
uint256,
/* _tokenId */
uint256 _salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
// Put the royalty info on the stack for more efficient access.
RoyaltyInfo storage info = _royaltyInfo;
// Set the royalty amount to the sale price times the royalty basis
// points divided by 10_000.
royaltyAmount = (_salePrice * info.royaltyBps) / 10_000;
// Set the receiver of the royalty.
receiver = info.royaltyAddress;
}
/**
* @notice Returns whether the interface is supported.
*
* @param interfaceId The interface id to check against.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(IERC165, ERC721ACloneable)
returns (bool)
{
return
interfaceId == type(IERC2981).interfaceId ||
interfaceId == 0x49064906 || // ERC-4906
super.supportsInterface(interfaceId);
}
/**
* @dev Internal pure function to cast a `bool` value to a `uint256` value.
*
* @param b The `bool` value to cast.
*
* @return u The `uint256` value.
*/
function _cast(bool b) internal pure returns (uint256 u) {
assembly {
u := b
}
}
}
// File: src/clones/ERC721SeaDropCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {
ERC721ContractMetadataCloneable,
ISeaDropTokenContractMetadata
} from "./ERC721ContractMetadataCloneable.sol";
import {
INonFungibleSeaDropToken
} from "../interfaces/INonFungibleSeaDropToken.sol";
import { ISeaDrop } from "../interfaces/ISeaDrop.sol";
import {
AllowListData,
PublicDrop,
TokenGatedDropStage,
SignedMintValidationParams
} from "../lib/SeaDropStructs.sol";
import {
ERC721SeaDropStructsErrorsAndEvents
} from "../lib/ERC721SeaDropStructsErrorsAndEvents.sol";
import { ERC721ACloneable } from "./ERC721ACloneable.sol";
import {
ReentrancyGuardUpgradeable
} from "openzeppelin-contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import {
IERC165
} from "openzeppelin-contracts/utils/introspection/IERC165.sol";
import {
DefaultOperatorFiltererUpgradeable
} from "operator-filter-registry/upgradeable/DefaultOperatorFiltererUpgradeable.sol";
/**
* @title ERC721SeaDrop
* @author James Wenzel (emo.eth)
* @author Ryan Ghods (ralxz.eth)
* @author Stephan Min (stephanm.eth)
* @notice ERC721SeaDrop is a token contract that contains methods
* to properly interact with SeaDrop.
*/
contract ERC721SeaDropCloneable is
ERC721ContractMetadataCloneable,
INonFungibleSeaDropToken,
ERC721SeaDropStructsErrorsAndEvents,
ReentrancyGuardUpgradeable,
DefaultOperatorFiltererUpgradeable
{
/// @notice Track the allowed SeaDrop addresses.
mapping(address => bool) internal _allowedSeaDrop;
/// @notice Track the enumerated allowed SeaDrop addresses.
address[] internal _enumeratedAllowedSeaDrop;
/**
* @dev Reverts if not an allowed SeaDrop contract.
* This function is inlined instead of being a modifier
* to save contract space from being inlined N times.
*
* @param seaDrop The SeaDrop address to check if allowed.
*/
function _onlyAllowedSeaDrop(address seaDrop) internal view {
if (_allowedSeaDrop[seaDrop] != true) {
revert OnlyAllowedSeaDrop();
}
}
/**
* @notice Deploy the token contract with its name, symbol,
* and allowed SeaDrop addresses.
*/
function initialize(
string calldata __name,
string calldata __symbol,
address[] calldata allowedSeaDrop,
address initialOwner
) public initializer {
__ERC721ACloneable__init(__name, __symbol);
__ReentrancyGuard_init();
__DefaultOperatorFilterer_init();
_updateAllowedSeaDrop(allowedSeaDrop);
_transferOwnership(initialOwner);
emit SeaDropTokenDeployed();
}
/**
* @notice Update the allowed SeaDrop contracts.
* Only the owner or administrator can use this function.
*
* @param allowedSeaDrop The allowed SeaDrop addresses.
*/
function updateAllowedSeaDrop(address[] calldata allowedSeaDrop)
external
virtual
override
onlyOwner
{
_updateAllowedSeaDrop(allowedSeaDrop);
}
/**
* @notice Internal function to update the allowed SeaDrop contracts.
*
* @param allowedSeaDrop The allowed SeaDrop addresses.
*/
function _updateAllowedSeaDrop(address[] calldata allowedSeaDrop) internal {
// Put the length on the stack for more efficient access.
uint256 enumeratedAllowedSeaDropLength = _enumeratedAllowedSeaDrop
.length;
uint256 allowedSeaDropLength = allowedSeaDrop.length;
// Reset the old mapping.
for (uint256 i = 0; i < enumeratedAllowedSeaDropLength; ) {
_allowedSeaDrop[_enumeratedAllowedSeaDrop[i]] = false;
unchecked {
++i;
}
}
// Set the new mapping for allowed SeaDrop contracts.
for (uint256 i = 0; i < allowedSeaDropLength; ) {
_allowedSeaDrop[allowedSeaDrop[i]] = true;
unchecked {
++i;
}
}
// Set the enumeration.
_enumeratedAllowedSeaDrop = allowedSeaDrop;
// Emit an event for the update.
emit AllowedSeaDropUpdated(allowedSeaDrop);
}
/**
* @dev Overrides the `_startTokenId` function from ERC721A
* to start at token id `1`.
*
* This is to avoid future possible problems since `0` is usually
* used to signal values that have not been set or have been removed.
*/
function _startTokenId() internal view virtual override returns (uint256) {
return 1;
}
/**
* @dev Overrides the `tokenURI()` function from ERC721A
* to return just the base URI if it is implied to not be a directory.
*
* This is to help with ERC721 contracts in which the same token URI
* is desired for each token, such as when the tokenURI is 'unrevealed'.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
string memory baseURI = _baseURI();
// Exit early if the baseURI is empty.
if (bytes(baseURI).length == 0) {
return "";
}
// Check if the last character in baseURI is a slash.
if (bytes(baseURI)[bytes(baseURI).length - 1] != bytes("/")[0]) {
return baseURI;
}
return string(abi.encodePacked(baseURI, _toString(tokenId)));
}
/**
* @notice Mint tokens, restricted to the SeaDrop contract.
*
* @dev NOTE: If a token registers itself with multiple SeaDrop
* contracts, the implementation of this function should guard
* against reentrancy. If the implementing token uses
* _safeMint(), or a feeRecipient with a malicious receive() hook
* is specified, the token or fee recipients may be able to execute
* another mint in the same transaction via a separate SeaDrop
* contract.
* This is dangerous if an implementing token does not correctly
* update the minterNumMinted and currentTotalSupply values before
* transferring minted tokens, as SeaDrop references these values
* to enforce token limits on a per-wallet and per-stage basis.
*
* ERC721A tracks these values automatically, but this note and
* nonReentrant modifier are left here to encourage best-practices
* when referencing this contract.
*
* @param minter The address to mint to.
* @param quantity The number of tokens to mint.
*/
function mintSeaDrop(address minter, uint256 quantity)
external
virtual
override
nonReentrant
{
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(msg.sender);
// Extra safety check to ensure the max supply is not exceeded.
if (_totalMinted() + quantity > maxSupply()) {
revert MintQuantityExceedsMaxSupply(
_totalMinted() + quantity,
maxSupply()
);
}
// Mint the quantity of tokens to the minter.
_safeMint(minter, quantity);
}
/**
* @notice Update the public drop data for this nft contract on SeaDrop.
* Only the owner can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param publicDrop The public drop data.
*/
function updatePublicDrop(
address seaDropImpl,
PublicDrop calldata publicDrop
) external virtual override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the public drop data on SeaDrop.
ISeaDrop(seaDropImpl).updatePublicDrop(publicDrop);
}
/**
* @notice Update the allow list data for this nft contract on SeaDrop.
* Only the owner can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowListData The allow list data.
*/
function updateAllowList(
address seaDropImpl,
AllowListData calldata allowListData
) external virtual override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the allow list on SeaDrop.
ISeaDrop(seaDropImpl).updateAllowList(allowListData);
}
/**
* @notice Update the token gated drop stage data for this nft contract
* on SeaDrop.
* Only the owner can use this function.
*
* Note: If two INonFungibleSeaDropToken tokens are doing
* simultaneous token gated drop promotions for each other,
* they can be minted by the same actor until
* `maxTokenSupplyForStage` is reached. Please ensure the
* `allowedNftToken` is not running an active drop during the
* `dropStage` time period.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowedNftToken The allowed nft token.
* @param dropStage The token gated drop stage data.
*/
function updateTokenGatedDrop(
address seaDropImpl,
address allowedNftToken,
TokenGatedDropStage calldata dropStage
) external virtual override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the token gated drop stage.
ISeaDrop(seaDropImpl).updateTokenGatedDrop(allowedNftToken, dropStage);
}
/**
* @notice Update the drop URI for this nft contract on SeaDrop.
* Only the owner can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param dropURI The new drop URI.
*/
function updateDropURI(address seaDropImpl, string calldata dropURI)
external
virtual
override
{
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the drop URI.
ISeaDrop(seaDropImpl).updateDropURI(dropURI);
}
/**
* @notice Update the creator payout address for this nft contract on
* SeaDrop.
* Only the owner can set the creator payout address.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payoutAddress The new payout address.
*/
function updateCreatorPayoutAddress(
address seaDropImpl,
address payoutAddress
) external {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the creator payout address.
ISeaDrop(seaDropImpl).updateCreatorPayoutAddress(payoutAddress);
}
/**
* @notice Update the allowed fee recipient for this nft contract
* on SeaDrop.
* Only the owner can set the allowed fee recipient.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param feeRecipient The new fee recipient.
* @param allowed If the fee recipient is allowed.
*/
function updateAllowedFeeRecipient(
address seaDropImpl,
address feeRecipient,
bool allowed
) external virtual {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the allowed fee recipient.
ISeaDrop(seaDropImpl).updateAllowedFeeRecipient(feeRecipient, allowed);
}
/**
* @notice Update the server-side signers for this nft contract
* on SeaDrop.
* Only the owner can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param signer The signer to update.
* @param signedMintValidationParams Minimum and maximum parameters to
* enforce for signed mints.
*/
function updateSignedMintValidationParams(
address seaDropImpl,
address signer,
SignedMintValidationParams memory signedMintValidationParams
) external virtual override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the signer.
ISeaDrop(seaDropImpl).updateSignedMintValidationParams(
signer,
signedMintValidationParams
);
}
/**
* @notice Update the allowed payers for this nft contract on SeaDrop.
* Only the owner can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payer The payer to update.
* @param allowed Whether the payer is allowed.
*/
function updatePayer(
address seaDropImpl,
address payer,
bool allowed
) external virtual override {
// Ensure the sender is only the owner or contract itself.
_onlyOwnerOrSelf();
// Ensure the SeaDrop is allowed.
_onlyAllowedSeaDrop(seaDropImpl);
// Update the payer.
ISeaDrop(seaDropImpl).updatePayer(payer, allowed);
}
/**
* @notice Returns a set of mint stats for the address.
* This assists SeaDrop in enforcing maxSupply,
* maxTotalMintableByWallet, and maxTokenSupplyForStage checks.
*
* @dev NOTE: Implementing contracts should always update these numbers
* before transferring any tokens with _safeMint() to mitigate
* consequences of malicious onERC721Received() hooks.
*
* @param minter The minter address.
*/
function getMintStats(address minter)
external
view
override
returns (
uint256 minterNumMinted,
uint256 currentTotalSupply,
uint256 maxSupply
)
{
minterNumMinted = _numberMinted(minter);
currentTotalSupply = _totalMinted();
maxSupply = _maxSupply;
}
/**
* @notice Returns whether the interface is supported.
*
* @param interfaceId The interface id to check against.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(IERC165, ERC721ContractMetadataCloneable)
returns (bool)
{
return
interfaceId == type(INonFungibleSeaDropToken).interfaceId ||
interfaceId == type(ISeaDropTokenContractMetadata).interfaceId ||
// ERC721ContractMetadata returns supportsInterface true for
// EIP-2981
// ERC721A returns supportsInterface true for
// ERC165, ERC721, ERC721Metadata
super.supportsInterface(interfaceId);
}
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom}
* for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
* - The `operator` must be allowed.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved)
public
override
onlyAllowedOperatorApproval(operator)
{
super.setApprovalForAll(operator, approved);
}
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the
* zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
* - The `operator` mut be allowed.
*
* Emits an {Approval} event.
*/
function approve(address operator, uint256 tokenId)
public
override
onlyAllowedOperatorApproval(operator)
{
super.approve(operator, tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
* - The operator must be allowed.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override onlyAllowedOperator(from) {
super.transferFrom(from, to, tokenId);
}
/**
* @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override onlyAllowedOperator(from) {
super.safeTransferFrom(from, to, tokenId);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token
* by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
* - The operator must be allowed.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public override onlyAllowedOperator(from) {
super.safeTransferFrom(from, to, tokenId, data);
}
/**
* @notice Configure multiple properties at a time.
*
* Note: The individual configure methods should be used
* to unset or reset any properties to zero, as this method
* will ignore zero-value properties in the config struct.
*
* @param config The configuration struct.
*/
function multiConfigure(MultiConfigureStruct calldata config)
external
onlyOwner
{
if (config.maxSupply > 0) {
this.setMaxSupply(config.maxSupply);
}
if (bytes(config.baseURI).length != 0) {
this.setBaseURI(config.baseURI);
}
if (bytes(config.contractURI).length != 0) {
this.setContractURI(config.contractURI);
}
if (
_cast(config.publicDrop.startTime != 0) |
_cast(config.publicDrop.endTime != 0) ==
1
) {
this.updatePublicDrop(config.seaDropImpl, config.publicDrop);
}
if (bytes(config.dropURI).length != 0) {
this.updateDropURI(config.seaDropImpl, config.dropURI);
}
if (config.allowListData.merkleRoot != bytes32(0)) {
this.updateAllowList(config.seaDropImpl, config.allowListData);
}
if (config.creatorPayoutAddress != address(0)) {
this.updateCreatorPayoutAddress(
config.seaDropImpl,
config.creatorPayoutAddress
);
}
if (config.provenanceHash != bytes32(0)) {
this.setProvenanceHash(config.provenanceHash);
}
if (config.allowedFeeRecipients.length > 0) {
for (uint256 i = 0; i < config.allowedFeeRecipients.length; ) {
this.updateAllowedFeeRecipient(
config.seaDropImpl,
config.allowedFeeRecipients[i],
true
);
unchecked {
++i;
}
}
}
if (config.disallowedFeeRecipients.length > 0) {
for (uint256 i = 0; i < config.disallowedFeeRecipients.length; ) {
this.updateAllowedFeeRecipient(
config.seaDropImpl,
config.disallowedFeeRecipients[i],
false
);
unchecked {
++i;
}
}
}
if (config.allowedPayers.length > 0) {
for (uint256 i = 0; i < config.allowedPayers.length; ) {
this.updatePayer(
config.seaDropImpl,
config.allowedPayers[i],
true
);
unchecked {
++i;
}
}
}
if (config.disallowedPayers.length > 0) {
for (uint256 i = 0; i < config.disallowedPayers.length; ) {
this.updatePayer(
config.seaDropImpl,
config.disallowedPayers[i],
false
);
unchecked {
++i;
}
}
}
if (config.tokenGatedDropStages.length > 0) {
if (
config.tokenGatedDropStages.length !=
config.tokenGatedAllowedNftTokens.length
) {
revert TokenGatedMismatch();
}
for (uint256 i = 0; i < config.tokenGatedDropStages.length; ) {
this.updateTokenGatedDrop(
config.seaDropImpl,
config.tokenGatedAllowedNftTokens[i],
config.tokenGatedDropStages[i]
);
unchecked {
++i;
}
}
}
if (config.disallowedTokenGatedAllowedNftTokens.length > 0) {
for (
uint256 i = 0;
i < config.disallowedTokenGatedAllowedNftTokens.length;
) {
TokenGatedDropStage memory emptyStage;
this.updateTokenGatedDrop(
config.seaDropImpl,
config.disallowedTokenGatedAllowedNftTokens[i],
emptyStage
);
unchecked {
++i;
}
}
}
if (config.signedMintValidationParams.length > 0) {
if (
config.signedMintValidationParams.length !=
config.signers.length
) {
revert SignersMismatch();
}
for (
uint256 i = 0;
i < config.signedMintValidationParams.length;
) {
this.updateSignedMintValidationParams(
config.seaDropImpl,
config.signers[i],
config.signedMintValidationParams[i]
);
unchecked {
++i;
}
}
}
if (config.disallowedSigners.length > 0) {
for (uint256 i = 0; i < config.disallowedSigners.length; ) {
SignedMintValidationParams memory emptyParams;
this.updateSignedMintValidationParams(
config.seaDropImpl,
config.disallowedSigners[i],
emptyParams
);
unchecked {
++i;
}
}
}
}
}
// File: src/interfaces/INonFungibleSeaDropToken.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {
ISeaDropTokenContractMetadata
} from "./ISeaDropTokenContractMetadata.sol";
import {
AllowListData,
PublicDrop,
TokenGatedDropStage,
SignedMintValidationParams
} from "../lib/SeaDropStructs.sol";
interface INonFungibleSeaDropToken is ISeaDropTokenContractMetadata {
/**
* @dev Revert with an error if a contract is not an allowed
* SeaDrop address.
*/
error OnlyAllowedSeaDrop();
/**
* @dev Emit an event when allowed SeaDrop contracts are updated.
*/
event AllowedSeaDropUpdated(address[] allowedSeaDrop);
/**
* @notice Update the allowed SeaDrop contracts.
* Only the owner or administrator can use this function.
*
* @param allowedSeaDrop The allowed SeaDrop addresses.
*/
function updateAllowedSeaDrop(address[] calldata allowedSeaDrop) external;
/**
* @notice Mint tokens, restricted to the SeaDrop contract.
*
* @dev NOTE: If a token registers itself with multiple SeaDrop
* contracts, the implementation of this function should guard
* against reentrancy. If the implementing token uses
* _safeMint(), or a feeRecipient with a malicious receive() hook
* is specified, the token or fee recipients may be able to execute
* another mint in the same transaction via a separate SeaDrop
* contract.
* This is dangerous if an implementing token does not correctly
* update the minterNumMinted and currentTotalSupply values before
* transferring minted tokens, as SeaDrop references these values
* to enforce token limits on a per-wallet and per-stage basis.
*
* @param minter The address to mint to.
* @param quantity The number of tokens to mint.
*/
function mintSeaDrop(address minter, uint256 quantity) external;
/**
* @notice Returns a set of mint stats for the address.
* This assists SeaDrop in enforcing maxSupply,
* maxTotalMintableByWallet, and maxTokenSupplyForStage checks.
*
* @dev NOTE: Implementing contracts should always update these numbers
* before transferring any tokens with _safeMint() to mitigate
* consequences of malicious onERC721Received() hooks.
*
* @param minter The minter address.
*/
function getMintStats(address minter)
external
view
returns (
uint256 minterNumMinted,
uint256 currentTotalSupply,
uint256 maxSupply
);
/**
* @notice Update the public drop data for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* The administrator can only update `feeBps`.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param publicDrop The public drop data.
*/
function updatePublicDrop(
address seaDropImpl,
PublicDrop calldata publicDrop
) external;
/**
* @notice Update the allow list data for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowListData The allow list data.
*/
function updateAllowList(
address seaDropImpl,
AllowListData calldata allowListData
) external;
/**
* @notice Update the token gated drop stage data for this nft contract
* on SeaDrop.
* Only the owner or administrator can use this function.
*
* The administrator, when present, must first set `feeBps`.
*
* Note: If two INonFungibleSeaDropToken tokens are doing
* simultaneous token gated drop promotions for each other,
* they can be minted by the same actor until
* `maxTokenSupplyForStage` is reached. Please ensure the
* `allowedNftToken` is not running an active drop during the
* `dropStage` time period.
*
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param allowedNftToken The allowed nft token.
* @param dropStage The token gated drop stage data.
*/
function updateTokenGatedDrop(
address seaDropImpl,
address allowedNftToken,
TokenGatedDropStage calldata dropStage
) external;
/**
* @notice Update the drop URI for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param dropURI The new drop URI.
*/
function updateDropURI(address seaDropImpl, string calldata dropURI)
external;
/**
* @notice Update the creator payout address for this nft contract on
* SeaDrop.
* Only the owner can set the creator payout address.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payoutAddress The new payout address.
*/
function updateCreatorPayoutAddress(
address seaDropImpl,
address payoutAddress
) external;
/**
* @notice Update the allowed fee recipient for this nft contract
* on SeaDrop.
* Only the administrator can set the allowed fee recipient.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param feeRecipient The new fee recipient.
*/
function updateAllowedFeeRecipient(
address seaDropImpl,
address feeRecipient,
bool allowed
) external;
/**
* @notice Update the server-side signers for this nft contract
* on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param signer The signer to update.
* @param signedMintValidationParams Minimum and maximum parameters
* to enforce for signed mints.
*/
function updateSignedMintValidationParams(
address seaDropImpl,
address signer,
SignedMintValidationParams memory signedMintValidationParams
) external;
/**
* @notice Update the allowed payers for this nft contract on SeaDrop.
* Only the owner or administrator can use this function.
*
* @param seaDropImpl The allowed SeaDrop contract.
* @param payer The payer to update.
* @param allowed Whether the payer is allowed.
*/
function updatePayer(
address seaDropImpl,
address payer,
bool allowed
) external;
}
// File: src/interfaces/ISeaDrop.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {
AllowListData,
MintParams,
PublicDrop,
TokenGatedDropStage,
TokenGatedMintParams,
SignedMintValidationParams
} from "../lib/SeaDropStructs.sol";
import { SeaDropErrorsAndEvents } from "../lib/SeaDropErrorsAndEvents.sol";
interface ISeaDrop is SeaDropErrorsAndEvents {
/**
* @notice Mint a public drop.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param quantity The number of tokens to mint.
*/
function mintPublic(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
uint256 quantity
) external payable;
/**
* @notice Mint from an allow list.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param quantity The number of tokens to mint.
* @param mintParams The mint parameters.
* @param proof The proof for the leaf of the allow list.
*/
function mintAllowList(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
uint256 quantity,
MintParams calldata mintParams,
bytes32[] calldata proof
) external payable;
/**
* @notice Mint with a server-side signature.
* Note that a signature can only be used once.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param quantity The number of tokens to mint.
* @param mintParams The mint parameters.
* @param salt The sale for the signed mint.
* @param signature The server-side signature, must be an allowed
* signer.
*/
function mintSigned(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
uint256 quantity,
MintParams calldata mintParams,
uint256 salt,
bytes calldata signature
) external payable;
/**
* @notice Mint as an allowed token holder.
* This will mark the token id as redeemed and will revert if the
* same token id is attempted to be redeemed twice.
*
* @param nftContract The nft contract to mint.
* @param feeRecipient The fee recipient.
* @param minterIfNotPayer The mint recipient if different than the payer.
* @param mintParams The token gated mint params.
*/
function mintAllowedTokenHolder(
address nftContract,
address feeRecipient,
address minterIfNotPayer,
TokenGatedMintParams calldata mintParams
) external payable;
/**
* @notice Emits an event to notify update of the drop URI.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param dropURI The new drop URI.
*/
function updateDropURI(string calldata dropURI) external;
/**
* @notice Updates the public drop data for the nft contract
* and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param publicDrop The public drop data.
*/
function updatePublicDrop(PublicDrop calldata publicDrop) external;
/**
* @notice Updates the allow list merkle root for the nft contract
* and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param allowListData The allow list data.
*/
function updateAllowList(AllowListData calldata allowListData) external;
/**
* @notice Updates the token gated drop stage for the nft contract
* and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* Note: If two INonFungibleSeaDropToken tokens are doing
* simultaneous token gated drop promotions for each other,
* they can be minted by the same actor until
* `maxTokenSupplyForStage` is reached. Please ensure the
* `allowedNftToken` is not running an active drop during
* the `dropStage` time period.
*
* @param allowedNftToken The token gated nft token.
* @param dropStage The token gated drop stage data.
*/
function updateTokenGatedDrop(
address allowedNftToken,
TokenGatedDropStage calldata dropStage
) external;
/**
* @notice Updates the creator payout address and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param payoutAddress The creator payout address.
*/
function updateCreatorPayoutAddress(address payoutAddress) external;
/**
* @notice Updates the allowed fee recipient and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param feeRecipient The fee recipient.
* @param allowed If the fee recipient is allowed.
*/
function updateAllowedFeeRecipient(address feeRecipient, bool allowed)
external;
/**
* @notice Updates the allowed server-side signers and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param signer The signer to update.
* @param signedMintValidationParams Minimum and maximum parameters
* to enforce for signed mints.
*/
function updateSignedMintValidationParams(
address signer,
SignedMintValidationParams calldata signedMintValidationParams
) external;
/**
* @notice Updates the allowed payer and emits an event.
*
* This method assume msg.sender is an nft contract and its
* ERC165 interface id matches INonFungibleSeaDropToken.
*
* Note: Be sure only authorized users can call this from
* token contracts that implement INonFungibleSeaDropToken.
*
* @param payer The payer to add or remove.
* @param allowed Whether to add or remove the payer.
*/
function updatePayer(address payer, bool allowed) external;
/**
* @notice Returns the public drop data for the nft contract.
*
* @param nftContract The nft contract.
*/
function getPublicDrop(address nftContract)
external
view
returns (PublicDrop memory);
/**
* @notice Returns the creator payout address for the nft contract.
*
* @param nftContract The nft contract.
*/
function getCreatorPayoutAddress(address nftContract)
external
view
returns (address);
/**
* @notice Returns the allow list merkle root for the nft contract.
*
* @param nftContract The nft contract.
*/
function getAllowListMerkleRoot(address nftContract)
external
view
returns (bytes32);
/**
* @notice Returns if the specified fee recipient is allowed
* for the nft contract.
*
* @param nftContract The nft contract.
* @param feeRecipient The fee recipient.
*/
function getFeeRecipientIsAllowed(address nftContract, address feeRecipient)
external
view
returns (bool);
/**
* @notice Returns an enumeration of allowed fee recipients for an
* nft contract when fee recipients are enforced
*
* @param nftContract The nft contract.
*/
function getAllowedFeeRecipients(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns the server-side signers for the nft contract.
*
* @param nftContract The nft contract.
*/
function getSigners(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns the struct of SignedMintValidationParams for a signer.
*
* @param nftContract The nft contract.
* @param signer The signer.
*/
function getSignedMintValidationParams(address nftContract, address signer)
external
view
returns (SignedMintValidationParams memory);
/**
* @notice Returns the payers for the nft contract.
*
* @param nftContract The nft contract.
*/
function getPayers(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns if the specified payer is allowed
* for the nft contract.
*
* @param nftContract The nft contract.
* @param payer The payer.
*/
function getPayerIsAllowed(address nftContract, address payer)
external
view
returns (bool);
/**
* @notice Returns the allowed token gated drop tokens for the nft contract.
*
* @param nftContract The nft contract.
*/
function getTokenGatedAllowedTokens(address nftContract)
external
view
returns (address[] memory);
/**
* @notice Returns the token gated drop data for the nft contract
* and token gated nft.
*
* @param nftContract The nft contract.
* @param allowedNftToken The token gated nft token.
*/
function getTokenGatedDrop(address nftContract, address allowedNftToken)
external
view
returns (TokenGatedDropStage memory);
/**
* @notice Returns whether the token id for a token gated drop has been
* redeemed.
*
* @param nftContract The nft contract.
* @param allowedNftToken The token gated nft token.
* @param allowedNftTokenId The token gated nft token id to check.
*/
function getAllowedNftTokenIdIsRedeemed(
address nftContract,
address allowedNftToken,
uint256 allowedNftTokenId
) external view returns (bool);
}
// File: src/interfaces/ISeaDropTokenContractMetadata.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import { IERC2981 } from "openzeppelin-contracts/interfaces/IERC2981.sol";
interface ISeaDropTokenContractMetadata is IERC2981 {
/**
* @notice Throw if the max supply exceeds uint64, a limit
* due to the storage of bit-packed variables in ERC721A.
*/
error CannotExceedMaxSupplyOfUint64(uint256 newMaxSupply);
/**
* @dev Revert with an error when attempting to set the provenance
* hash after the mint has started.
*/
error ProvenanceHashCannotBeSetAfterMintStarted();
/**
* @dev Revert if the royalty basis points is greater than 10_000.
*/
error InvalidRoyaltyBasisPoints(uint256 basisPoints);
/**
* @dev Revert if the royalty address is being set to the zero address.
*/
error RoyaltyAddressCannotBeZeroAddress();
/**
* @dev Emit an event for token metadata reveals/updates,
* according to EIP-4906.
*
* @param _fromTokenId The start token id.
* @param _toTokenId The end token id.
*/
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
/**
* @dev Emit an event when the URI for the collection-level metadata
* is updated.
*/
event ContractURIUpdated(string newContractURI);
/**
* @dev Emit an event when the max token supply is updated.
*/
event MaxSupplyUpdated(uint256 newMaxSupply);
/**
* @dev Emit an event with the previous and new provenance hash after
* being updated.
*/
event ProvenanceHashUpdated(bytes32 previousHash, bytes32 newHash);
/**
* @dev Emit an event when the royalties info is updated.
*/
event RoyaltyInfoUpdated(address receiver, uint256 bps);
/**
* @notice A struct defining royalty info for the contract.
*/
struct RoyaltyInfo {
address royaltyAddress;
uint96 royaltyBps;
}
/**
* @notice Sets the base URI for the token metadata and emits an event.
*
* @param tokenURI The new base URI to set.
*/
function setBaseURI(string calldata tokenURI) external;
/**
* @notice Sets the contract URI for contract metadata.
*
* @param newContractURI The new contract URI.
*/
function setContractURI(string calldata newContractURI) external;
/**
* @notice Sets the max supply and emits an event.
*
* @param newMaxSupply The new max supply to set.
*/
function setMaxSupply(uint256 newMaxSupply) external;
/**
* @notice Sets the provenance hash and emits an event.
*
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it has not been
* modified after mint started.
*
* This function will revert after the first item has been minted.
*
* @param newProvenanceHash The new provenance hash to set.
*/
function setProvenanceHash(bytes32 newProvenanceHash) external;
/**
* @notice Sets the address and basis points for royalties.
*
* @param newInfo The struct to configure royalties.
*/
function setRoyaltyInfo(RoyaltyInfo calldata newInfo) external;
/**
* @notice Returns the base URI for token metadata.
*/
function baseURI() external view returns (string memory);
/**
* @notice Returns the contract URI.
*/
function contractURI() external view returns (string memory);
/**
* @notice Returns the max token supply.
*/
function maxSupply() external view returns (uint256);
/**
* @notice Returns the provenance hash.
* The provenance hash is used for random reveals, which
* is a hash of the ordered metadata to show it is unmodified
* after mint has started.
*/
function provenanceHash() external view returns (bytes32);
/**
* @notice Returns the address that receives royalties.
*/
function royaltyAddress() external view returns (address);
/**
* @notice Returns the royalty basis points out of 10_000.
*/
function royaltyBasisPoints() external view returns (uint256);
}
// File: src/lib/ERC721SeaDropStructsErrorsAndEvents.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {
AllowListData,
PublicDrop,
SignedMintValidationParams,
TokenGatedDropStage
} from "./SeaDropStructs.sol";
interface ERC721SeaDropStructsErrorsAndEvents {
/**
* @notice Revert with an error if mint exceeds the max supply.
*/
error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);
/**
* @notice Revert with an error if the number of token gated
* allowedNftTokens doesn't match the length of supplied
* drop stages.
*/
error TokenGatedMismatch();
/**
* @notice Revert with an error if the number of signers doesn't match
* the length of supplied signedMintValidationParams
*/
error SignersMismatch();
/**
* @notice An event to signify that a SeaDrop token contract was deployed.
*/
event SeaDropTokenDeployed();
/**
* @notice A struct to configure multiple contract options at a time.
*/
struct MultiConfigureStruct {
uint256 maxSupply;
string baseURI;
string contractURI;
address seaDropImpl;
PublicDrop publicDrop;
string dropURI;
AllowListData allowListData;
address creatorPayoutAddress;
bytes32 provenanceHash;
address[] allowedFeeRecipients;
address[] disallowedFeeRecipients;
address[] allowedPayers;
address[] disallowedPayers;
// Token-gated
address[] tokenGatedAllowedNftTokens;
TokenGatedDropStage[] tokenGatedDropStages;
address[] disallowedTokenGatedAllowedNftTokens;
// Server-signed
address[] signers;
SignedMintValidationParams[] signedMintValidationParams;
address[] disallowedSigners;
}
}
// File: src/lib/SeaDropErrorsAndEvents.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import { PublicDrop, TokenGatedDropStage, SignedMintValidationParams } from "./SeaDropStructs.sol";
interface SeaDropErrorsAndEvents {
/**
* @dev Revert with an error if the drop stage is not active.
*/
error NotActive(
uint256 currentTimestamp,
uint256 startTimestamp,
uint256 endTimestamp
);
/**
* @dev Revert with an error if the mint quantity is zero.
*/
error MintQuantityCannotBeZero();
/**
* @dev Revert with an error if the mint quantity exceeds the max allowed
* to be minted per wallet.
*/
error MintQuantityExceedsMaxMintedPerWallet(uint256 total, uint256 allowed);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply.
*/
error MintQuantityExceedsMaxSupply(uint256 total, uint256 maxSupply);
/**
* @dev Revert with an error if the mint quantity exceeds the max token
* supply for the stage.
* Note: The `maxTokenSupplyForStage` for public mint is
* always `type(uint).max`.
*/
error MintQuantityExceedsMaxTokenSupplyForStage(
uint256 total,
uint256 maxTokenSupplyForStage
);
/**
* @dev Revert if the fee recipient is the zero address.
*/
error FeeRecipientCannotBeZeroAddress();
/**
* @dev Revert if the fee recipient is not already included.
*/
error FeeRecipientNotPresent();
/**
* @dev Revert if the fee basis points is greater than 10_000.
*/
error InvalidFeeBps(uint256 feeBps);
/**
* @dev Revert if the fee recipient is already included.
*/
error DuplicateFeeRecipient();
/**
* @dev Revert if the fee recipient is restricted and not allowed.
*/
error FeeRecipientNotAllowed();
/**
* @dev Revert if the creator payout address is the zero address.
*/
error CreatorPayoutAddressCannotBeZeroAddress();
/**
* @dev Revert with an error if the received payment is incorrect.
*/
error IncorrectPayment(uint256 got, uint256 want);
/**
* @dev Revert with an error if the allow list proof is invalid.
*/
error InvalidProof();
/**
* @dev Revert if a supplied signer address is the zero address.
*/
error SignerCannotBeZeroAddress();
/**
* @dev Revert with an error if signer's signature is invalid.
*/
error InvalidSignature(address recoveredSigner);
/**
* @dev Revert with an error if a signer is not included in
* the enumeration when removing.
*/
error SignerNotPresent();
/**
* @dev Revert with an error if a payer is not included in
* the enumeration when removing.
*/
error PayerNotPresent();
/**
* @dev Revert with an error if a payer is already included in mapping
* when adding.
* Note: only applies when adding a single payer, as duplicates in
* enumeration can be removed with updatePayer.
*/
error DuplicatePayer();
/**
* @dev Revert with an error if the payer is not allowed. The minter must
* pay for their own mint.
*/
error PayerNotAllowed();
/**
* @dev Revert if a supplied payer address is the zero address.
*/
error PayerCannotBeZeroAddress();
/**
* @dev Revert with an error if the sender does not
* match the INonFungibleSeaDropToken interface.
*/
error OnlyINonFungibleSeaDropToken(address sender);
/**
* @dev Revert with an error if the sender of a token gated supplied
* drop stage redeem is not the owner of the token.
*/
error TokenGatedNotTokenOwner(
address nftContract,
address allowedNftToken,
uint256 allowedNftTokenId
);
/**
* @dev Revert with an error if the token id has already been used to
* redeem a token gated drop stage.
*/
error TokenGatedTokenIdAlreadyRedeemed(
address nftContract,
address allowedNftToken,
uint256 allowedNftTokenId
);
/**
* @dev Revert with an error if an empty TokenGatedDropStage is provided
* for an already-empty TokenGatedDropStage.
*/
error TokenGatedDropStageNotPresent();
/**
* @dev Revert with an error if an allowedNftToken is set to
* the zero address.
*/
error TokenGatedDropAllowedNftTokenCannotBeZeroAddress();
/**
* @dev Revert with an error if an allowedNftToken is set to
* the drop token itself.
*/
error TokenGatedDropAllowedNftTokenCannotBeDropToken();
/**
* @dev Revert with an error if supplied signed mint price is less than
* the minimum specified.
*/
error InvalidSignedMintPrice(uint256 got, uint256 minimum);
/**
* @dev Revert with an error if supplied signed maxTotalMintableByWallet
* is greater than the maximum specified.
*/
error InvalidSignedMaxTotalMintableByWallet(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed start time is less than
* the minimum specified.
*/
error InvalidSignedStartTime(uint256 got, uint256 minimum);
/**
* @dev Revert with an error if supplied signed end time is greater than
* the maximum specified.
*/
error InvalidSignedEndTime(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed maxTokenSupplyForStage
* is greater than the maximum specified.
*/
error InvalidSignedMaxTokenSupplyForStage(uint256 got, uint256 maximum);
/**
* @dev Revert with an error if supplied signed feeBps is greater than
* the maximum specified, or less than the minimum.
*/
error InvalidSignedFeeBps(uint256 got, uint256 minimumOrMaximum);
/**
* @dev Revert with an error if signed mint did not specify to restrict
* fee recipients.
*/
error SignedMintsMustRestrictFeeRecipients();
/**
* @dev Revert with an error if a signature for a signed mint has already
* been used.
*/
error SignatureAlreadyUsed();
/**
* @dev An event with details of a SeaDrop mint, for analytical purposes.
*
* @param nftContract The nft contract.
* @param minter The mint recipient.
* @param feeRecipient The fee recipient.
* @param payer The address who payed for the tx.
* @param quantityMinted The number of tokens minted.
* @param unitMintPrice The amount paid for each token.
* @param feeBps The fee out of 10_000 basis points collected.
* @param dropStageIndex The drop stage index. Items minted
* through mintPublic() have
* dropStageIndex of 0.
*/
event SeaDropMint(
address indexed nftContract,
address indexed minter,
address indexed feeRecipient,
address payer,
uint256 quantityMinted,
uint256 unitMintPrice,
uint256 feeBps,
uint256 dropStageIndex
);
/**
* @dev An event with updated public drop data for an nft contract.
*/
event PublicDropUpdated(
address indexed nftContract,
PublicDrop publicDrop
);
/**
* @dev An event with updated token gated drop stage data
* for an nft contract.
*/
event TokenGatedDropStageUpdated(
address indexed nftContract,
address indexed allowedNftToken,
TokenGatedDropStage dropStage
);
/**
* @dev An event with updated allow list data for an nft contract.
*
* @param nftContract The nft contract.
* @param previousMerkleRoot The previous allow list merkle root.
* @param newMerkleRoot The new allow list merkle root.
* @param publicKeyURI If the allow list is encrypted, the public key
* URIs that can decrypt the list.
* Empty if unencrypted.
* @param allowListURI The URI for the allow list.
*/
event AllowListUpdated(
address indexed nftContract,
bytes32 indexed previousMerkleRoot,
bytes32 indexed newMerkleRoot,
string[] publicKeyURI,
string allowListURI
);
/**
* @dev An event with updated drop URI for an nft contract.
*/
event DropURIUpdated(address indexed nftContract, string newDropURI);
/**
* @dev An event with the updated creator payout address for an nft
* contract.
*/
event CreatorPayoutAddressUpdated(
address indexed nftContract,
address indexed newPayoutAddress
);
/**
* @dev An event with the updated allowed fee recipient for an nft
* contract.
*/
event AllowedFeeRecipientUpdated(
address indexed nftContract,
address indexed feeRecipient,
bool indexed allowed
);
/**
* @dev An event with the updated validation parameters for server-side
* signers.
*/
event SignedMintValidationParamsUpdated(
address indexed nftContract,
address indexed signer,
SignedMintValidationParams signedMintValidationParams
);
/**
* @dev An event with the updated payer for an nft contract.
*/
event PayerUpdated(
address indexed nftContract,
address indexed payer,
bool indexed allowed
);
}
// File: src/lib/SeaDropStructs.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/**
* @notice A struct defining public drop data.
* Designed to fit efficiently in one storage slot.
*
* @param mintPrice The mint price per token. (Up to 1.2m
* of native token, e.g. ETH, MATIC)
* @param startTime The start time, ensure this is not zero.
* @param endTIme The end time, ensure this is not zero.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed. (The limit for this field is
* 2^16 - 1)
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct PublicDrop {
uint80 mintPrice; // 80/256 bits
uint48 startTime; // 128/256 bits
uint48 endTime; // 176/256 bits
uint16 maxTotalMintableByWallet; // 224/256 bits
uint16 feeBps; // 240/256 bits
bool restrictFeeRecipients; // 248/256 bits
}
/**
* @notice A struct defining token gated drop stage data.
* Designed to fit efficiently in one storage slot.
*
* @param mintPrice The mint price per token. (Up to 1.2m
* of native token, e.g.: ETH, MATIC)
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed. (The limit for this field is
* 2^16 - 1)
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param dropStageIndex The drop stage index to emit with the event
* for analytical purposes. This should be
* non-zero since the public mint emits
* with index zero.
* @param maxTokenSupplyForStage The limit of token supply this stage can
* mint within. (The limit for this field is
* 2^16 - 1)
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct TokenGatedDropStage {
uint80 mintPrice; // 80/256 bits
uint16 maxTotalMintableByWallet; // 96/256 bits
uint48 startTime; // 144/256 bits
uint48 endTime; // 192/256 bits
uint8 dropStageIndex; // non-zero. 200/256 bits
uint32 maxTokenSupplyForStage; // 232/256 bits
uint16 feeBps; // 248/256 bits
bool restrictFeeRecipients; // 256/256 bits
}
/**
* @notice A struct defining mint params for an allow list.
* An allow list leaf will be composed of `msg.sender` and
* the following params.
*
* Note: Since feeBps is encoded in the leaf, backend should ensure
* that feeBps is acceptable before generating a proof.
*
* @param mintPrice The mint price per token.
* @param maxTotalMintableByWallet Maximum total number of mints a user is
* allowed.
* @param startTime The start time, ensure this is not zero.
* @param endTime The end time, ensure this is not zero.
* @param dropStageIndex The drop stage index to emit with the event
* for analytical purposes. This should be
* non-zero since the public mint emits with
* index zero.
* @param maxTokenSupplyForStage The limit of token supply this stage can
* mint within.
* @param feeBps Fee out of 10_000 basis points to be
* collected.
* @param restrictFeeRecipients If false, allow any fee recipient;
* if true, check fee recipient is allowed.
*/
struct MintParams {
uint256 mintPrice;
uint256 maxTotalMintableByWallet;
uint256 startTime;
uint256 endTime;
uint256 dropStageIndex; // non-zero
uint256 maxTokenSupplyForStage;
uint256 feeBps;
bool restrictFeeRecipients;
}
/**
* @notice A struct defining token gated mint params.
*
* @param allowedNftToken The allowed nft token contract address.
* @param allowedNftTokenIds The token ids to redeem.
*/
struct TokenGatedMintParams {
address allowedNftToken;
uint256[] allowedNftTokenIds;
}
/**
* @notice A struct defining allow list data (for minting an allow list).
*
* @param merkleRoot The merkle root for the allow list.
* @param publicKeyURIs If the allowListURI is encrypted, a list of URIs
* pointing to the public keys. Empty if unencrypted.
* @param allowListURI The URI for the allow list.
*/
struct AllowListData {
bytes32 merkleRoot;
string[] publicKeyURIs;
string allowListURI;
}
/**
* @notice A struct defining minimum and maximum parameters to validate for
* signed mints, to minimize negative effects of a compromised signer.
*
* @param minMintPrice The minimum mint price allowed.
* @param maxMaxTotalMintableByWallet The maximum total number of mints allowed
* by a wallet.
* @param minStartTime The minimum start time allowed.
* @param maxEndTime The maximum end time allowed.
* @param maxMaxTokenSupplyForStage The maximum token supply allowed.
* @param minFeeBps The minimum fee allowed.
* @param maxFeeBps The maximum fee allowed.
*/
struct SignedMintValidationParams {
uint80 minMintPrice; // 80/256 bits
uint24 maxMaxTotalMintableByWallet; // 104/256 bits
uint40 minStartTime; // 144/256 bits
uint40 maxEndTime; // 184/256 bits
uint40 maxMaxTokenSupplyForStage; // 224/256 bits
uint16 minFeeBps; // 240/256 bits
uint16 maxFeeBps; // 256/256 bits
} | 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PublicDrop","name":"publicDrop","type":"tuple"}],"name":"updatePublicDrop","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"seaDropImpl","type":"address"},{"internalType":"address","name":"signer","type":"address"},{"components":[{"internalType":"uint80","name":"minMintPrice","type":"uint80"},{"internalType":"uint24","name":"maxMaxTotalMintableByWallet","type":"uint24"},{"internalType":"uint40","name":"minStartTime","type":"uint40"},{"internalType":"uint40","name":"maxEndTime","type":"uint40"},{"internalType":"uint40","name":"maxMaxTokenSupplyForStage","type":"uint40"},{"internalType":"uint16","name":"minFeeBps","type":"uint16"},{"internalType":"uint16","name":"maxFeeBps","type":"uint16"}],"internalType":"struct SignedMintValidationParams","name":"signedMintValidationParams","type":"tuple"}],"name":"updateSignedMintValidationParams","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"seaDropImpl","type":"address"},{"internalType":"address","name":"allowedNftToken","type":"address"},{"components":[{"internalType":"uint80","name":"mintPrice","type":"uint80"},{"internalType":"uint16","name":"maxTotalMintableByWallet","type":"uint16"},{"internalType":"uint48","name":"startTime","type":"uint48"},{"internalType":"uint48","name":"endTime","type":"uint48"},{"internalType":"uint8","name":"dropStageIndex","type":"uint8"},{"internalType":"uint32","name":"maxTokenSupplyForStage","type":"uint32"},{"internalType":"uint16","name":"feeBps","type":"uint16"},{"internalType":"bool","name":"restrictFeeRecipients","type":"bool"}],"internalType":"struct TokenGatedDropStage","name":"dropStage","type":"tuple"}],"name":"updateTokenGatedDrop","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.17+commit.8df45f5f | true | 1,000,000 | Default | false | |||||
UniswapV2Pair | 0x0b41854f5d251c12b1de6a88dd4292944f04305c | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
UserWallet | 0x6b78c6da511d98a9cf63d681963c38450c11aca4 | Solidity | pragma solidity ^0.4.10;
// Copyright 2017 Bittrex
contract AbstractSweeper {
function sweep(address token, uint amount) returns (bool);
function () { throw; }
Controller controller;
function AbstractSweeper(address _controller) {
controller = Controller(_controller);
}
modifier canSweep() {
if (msg.sender != controller.authorizedCaller() && msg.sender != controller.owner()) throw;
if (controller.halted()) throw;
_;
}
}
contract Token {
function balanceOf(address a) returns (uint) {
(a);
return 0;
}
function transfer(address a, uint val) returns (bool) {
(a);
(val);
return false;
}
}
contract DefaultSweeper is AbstractSweeper {
function DefaultSweeper(address controller)
AbstractSweeper(controller) {}
function sweep(address _token, uint _amount)
canSweep
returns (bool) {
bool success = false;
address destination = controller.destination();
if (_token != address(0)) {
Token token = Token(_token);
uint amount = _amount;
if (amount > token.balanceOf(this)) {
return false;
}
success = token.transfer(destination, amount);
}
else {
uint amountInWei = _amount;
if (amountInWei > this.balance) {
return false;
}
success = destination.send(amountInWei);
}
if (success) {
controller.logSweep(this, destination, _token, _amount);
}
return success;
}
}
contract UserWallet {
AbstractSweeperList sweeperList;
function UserWallet(address _sweeperlist) {
sweeperList = AbstractSweeperList(_sweeperlist);
}
function () public payable { }
function tokenFallback(address _from, uint _value, bytes _data) {
(_from);
(_value);
(_data);
}
function sweep(address _token, uint _amount)
returns (bool) {
(_amount);
return sweeperList.sweeperOf(_token).delegatecall(msg.data);
}
}
contract AbstractSweeperList {
function sweeperOf(address _token) returns (address);
}
contract Controller is AbstractSweeperList {
address public owner;
address public authorizedCaller;
address public destination;
bool public halted;
event LogNewWallet(address receiver);
event LogSweep(address indexed from, address indexed to, address indexed token, uint amount);
modifier onlyOwner() {
if (msg.sender != owner) throw;
_;
}
modifier onlyAuthorizedCaller() {
if (msg.sender != authorizedCaller) throw;
_;
}
modifier onlyAdmins() {
if (msg.sender != authorizedCaller && msg.sender != owner) throw;
_;
}
function Controller()
{
owner = msg.sender;
destination = msg.sender;
authorizedCaller = msg.sender;
}
function changeAuthorizedCaller(address _newCaller) onlyOwner {
authorizedCaller = _newCaller;
}
function changeDestination(address _dest) onlyOwner {
destination = _dest;
}
function changeOwner(address _owner) onlyOwner {
owner = _owner;
}
function makeWallet() onlyAdmins returns (address wallet) {
wallet = address(new UserWallet(this));
LogNewWallet(wallet);
}
function halt() onlyAdmins {
halted = true;
}
function start() onlyOwner {
halted = false;
}
address public defaultSweeper = address(new DefaultSweeper(this));
mapping (address => address) sweepers;
function addSweeper(address _token, address _sweeper) onlyOwner {
sweepers[_token] = _sweeper;
}
function sweeperOf(address _token) returns (address) {
address sweeper = sweepers[_token];
if (sweeper == 0) sweeper = defaultSweeper;
return sweeper;
}
function logSweep(address from, address to, address token, uint amount) {
LogSweep(from, to, token, amount);
}
} | [{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"name":"sweep","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"tokenFallback","outputs":[],"payable":false,"type":"function"},{"inputs":[{"name":"_sweeperlist","type":"address"}],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"}] | v0.4.11+commit.68ef5810 | true | 200 | 000000000000000000000000a3C1E324CA1ce40db73eD6026c4A177F099B5770 | Default | false | bzzr://4cdd69fdcf3cf6cbee9677fe380fa5f044048aa9e060ec5619a21ca5a5bd4cd1 | |||
UND | 0xced95eb6465d728797ed41eaeeef1c506c7df541 | Solidity | // File: contracts/UND.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title: Up & Down
/// @author: manifold.xyz
import "./manifold/ERC721Creator.sol";
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// //
// __ ____ ____ ___ ___ __ __ ___ ___ _____ ______ __ __ _____ //
// / ] / || \ | \ / _] | | | \ / \ / ___/| || | | / | //
// / / | o || _ | | \ / [_| | | | \ | | ( \_ | || | | | Y | //
// / / | || | | | D || _] | | | D || O | \__ ||_| |_|| _ | |__| | //
// / \_ | _ || | | | || [_| : | | || | / \ | | | | | | |__| //
// \ || | || | | | || |\ / | || | \ | | | | | | __ //
// \____||__|__||__|__| |_____||_____| \_/ |_____| \___/ \___| |__| |__|__| |__| //
// //
// //
// //
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
contract UND is ERC721Creator {
constructor() ERC721Creator("Up & Down", "UND") {}
}
// File: contracts/manifold/ERC721Creator.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @author: manifold.xyz
import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";
contract ERC721Creator is Proxy {
constructor(string memory name, string memory symbol) {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x2d3fC875de7Fe7Da43AD0afa0E7023c9B91D06b1;
Address.functionDelegateCall(
0x2d3fC875de7Fe7Da43AD0afa0E7023c9B91D06b1,
abi.encodeWithSignature("initialize(string,string)", name, symbol)
);
}
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function implementation() public view returns (address) {
return _implementation();
}
function _implementation() internal override view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
}
// File: node_modules/@openzeppelin/contracts/proxy/Proxy.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overridden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// File: node_modules/@openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: node_modules/@openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
}
| [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.17+commit.8df45f5f | true | 300 | Default | true | 0x2d3fc875de7fe7da43ad0afa0e7023c9b91d06b1 | ||||
Proxy | 0xc27a68aea0cfad19795edb5f9d1efb7ed09604bd | Solidity | // Copyright (C) 2018 Argent Labs Ltd. <https://argent.xyz>
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.3;
/**
* @title Proxy
* @notice Basic proxy that delegates all calls to a fixed implementing contract.
* The implementing contract cannot be upgraded.
* @author Julien Niset - <julien@argent.xyz>
*/
contract Proxy {
address immutable public implementation;
event Received(uint indexed value, address indexed sender, bytes data);
constructor(address _implementation) {
implementation = _implementation;
}
fallback() external payable {
address target = implementation;
// solhint-disable-next-line no-inline-assembly
assembly {
calldatacopy(0, 0, calldatasize())
let result := delegatecall(gas(), target, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
switch result
case 0 {revert(0, returndatasize())}
default {return (0, returndatasize())}
}
}
receive() external payable {
emit Received(msg.value, msg.sender, "");
}
} | [{"inputs":[{"internalType":"address","name":"_implementation","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"Received","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.3+commit.8d00100c | true | 999 | 000000000000000000000000Ab00eA153c43575184ff11Dd5e713c96bE005573 | Default | GNU GPLv3 | false | ipfs://b88a14f52e9d465328c9b3ab476e4b7fa40ed3615fd5409a6afc9885366e03a9 | ||
UserWallet | 0xf2c59292b3dabe22bd7529a82cc8086db982b9a5 | Solidity | pragma solidity ^0.4.10;
// Copyright 2017 Bittrex
contract AbstractSweeper {
function sweep(address token, uint amount) returns (bool);
function () { throw; }
Controller controller;
function AbstractSweeper(address _controller) {
controller = Controller(_controller);
}
modifier canSweep() {
if (msg.sender != controller.authorizedCaller() && msg.sender != controller.owner()) throw;
if (controller.halted()) throw;
_;
}
}
contract Token {
function balanceOf(address a) returns (uint) {
(a);
return 0;
}
function transfer(address a, uint val) returns (bool) {
(a);
(val);
return false;
}
}
contract DefaultSweeper is AbstractSweeper {
function DefaultSweeper(address controller)
AbstractSweeper(controller) {}
function sweep(address _token, uint _amount)
canSweep
returns (bool) {
bool success = false;
address destination = controller.destination();
if (_token != address(0)) {
Token token = Token(_token);
uint amount = _amount;
if (amount > token.balanceOf(this)) {
return false;
}
success = token.transfer(destination, amount);
}
else {
uint amountInWei = _amount;
if (amountInWei > this.balance) {
return false;
}
success = destination.send(amountInWei);
}
if (success) {
controller.logSweep(this, destination, _token, _amount);
}
return success;
}
}
contract UserWallet {
AbstractSweeperList sweeperList;
function UserWallet(address _sweeperlist) {
sweeperList = AbstractSweeperList(_sweeperlist);
}
function () public payable { }
function tokenFallback(address _from, uint _value, bytes _data) {
(_from);
(_value);
(_data);
}
function sweep(address _token, uint _amount)
returns (bool) {
(_amount);
return sweeperList.sweeperOf(_token).delegatecall(msg.data);
}
}
contract AbstractSweeperList {
function sweeperOf(address _token) returns (address);
}
contract Controller is AbstractSweeperList {
address public owner;
address public authorizedCaller;
address public destination;
bool public halted;
event LogNewWallet(address receiver);
event LogSweep(address indexed from, address indexed to, address indexed token, uint amount);
modifier onlyOwner() {
if (msg.sender != owner) throw;
_;
}
modifier onlyAuthorizedCaller() {
if (msg.sender != authorizedCaller) throw;
_;
}
modifier onlyAdmins() {
if (msg.sender != authorizedCaller && msg.sender != owner) throw;
_;
}
function Controller()
{
owner = msg.sender;
destination = msg.sender;
authorizedCaller = msg.sender;
}
function changeAuthorizedCaller(address _newCaller) onlyOwner {
authorizedCaller = _newCaller;
}
function changeDestination(address _dest) onlyOwner {
destination = _dest;
}
function changeOwner(address _owner) onlyOwner {
owner = _owner;
}
function makeWallet() onlyAdmins returns (address wallet) {
wallet = address(new UserWallet(this));
LogNewWallet(wallet);
}
function halt() onlyAdmins {
halted = true;
}
function start() onlyOwner {
halted = false;
}
address public defaultSweeper = address(new DefaultSweeper(this));
mapping (address => address) sweepers;
function addSweeper(address _token, address _sweeper) onlyOwner {
sweepers[_token] = _sweeper;
}
function sweeperOf(address _token) returns (address) {
address sweeper = sweepers[_token];
if (sweeper == 0) sweeper = defaultSweeper;
return sweeper;
}
function logSweep(address from, address to, address token, uint amount) {
LogSweep(from, to, token, amount);
}
} | [{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"name":"sweep","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"tokenFallback","outputs":[],"payable":false,"type":"function"},{"inputs":[{"name":"_sweeperlist","type":"address"}],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"}] | v0.4.11+commit.68ef5810 | true | 200 | 000000000000000000000000a3C1E324CA1ce40db73eD6026c4A177F099B5770 | Default | false | bzzr://4cdd69fdcf3cf6cbee9677fe380fa5f044048aa9e060ec5619a21ca5a5bd4cd1 | |||
RocketMinipool | 0x3a3f567822ae844fc60c505e47eb99762231da56 | Solidity | // File: /contracts/contract/minipool/RocketMinipool.sol
/**
* .
* / \
* |.'.|
* |'.'|
* ,'| |`.
* |,-'-|-'-.|
* __|_| | _ _ _____ _
* | ___ \| | | | | | ___ \ | |
* | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |
* | // _ \ / __| |/ / _ \ __| | __/ _ \ / _ \| |
* | |\ \ (_) | (__| < __/ |_ | | | (_) | (_) | |
* \_| \_\___/ \___|_|\_\___|\__| \_| \___/ \___/|_|
* +---------------------------------------------------+
* | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |
* +---------------------------------------------------+
*
* Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
* decentralised, trustless and compatible with staking in Ethereum 2.0.
*
* For more information about Rocket Pool, visit https://rocketpool.net
*
* Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
*
*/
pragma solidity 0.7.6;
// SPDX-License-Identifier: GPL-3.0-only
import "./RocketMinipoolStorageLayout.sol";
import "../../interface/RocketStorageInterface.sol";
import "../../types/MinipoolDeposit.sol";
import "../../types/MinipoolStatus.sol";
// An individual minipool in the Rocket Pool network
contract RocketMinipool is RocketMinipoolStorageLayout {
// Events
event EtherReceived(address indexed from, uint256 amount, uint256 time);
event DelegateUpgraded(address oldDelegate, address newDelegate, uint256 time);
event DelegateRolledBack(address oldDelegate, address newDelegate, uint256 time);
// Modifiers
// Only allow access from the owning node address
modifier onlyMinipoolOwner() {
// Only the node operator can upgrade
address withdrawalAddress = rocketStorage.getNodeWithdrawalAddress(nodeAddress);
require(msg.sender == nodeAddress || msg.sender == withdrawalAddress, "Only the node operator can access this method");
_;
}
// Construct
constructor(RocketStorageInterface _rocketStorageAddress, address _nodeAddress, MinipoolDeposit _depositType) {
// Initialise RocketStorage
require(address(_rocketStorageAddress) != address(0x0), "Invalid storage address");
rocketStorage = RocketStorageInterface(_rocketStorageAddress);
// Set storage state to uninitialised
storageState = StorageState.Uninitialised;
// Set the current delegate
address delegateAddress = getContractAddress("rocketMinipoolDelegate");
rocketMinipoolDelegate = delegateAddress;
// Check for contract existence
require(contractExists(delegateAddress), "Delegate contract does not exist");
// Call initialise on delegate
(bool success, bytes memory data) = delegateAddress.delegatecall(abi.encodeWithSignature('initialise(address,uint8)', _nodeAddress, uint8(_depositType)));
if (!success) { revert(getRevertMessage(data)); }
}
// Receive an ETH deposit
receive() external payable {
// Emit ether received event
emit EtherReceived(msg.sender, msg.value, block.timestamp);
}
// Upgrade this minipool to the latest network delegate contract
function delegateUpgrade() external onlyMinipoolOwner {
// Set previous address
rocketMinipoolDelegatePrev = rocketMinipoolDelegate;
// Set new delegate
rocketMinipoolDelegate = getContractAddress("rocketMinipoolDelegate");
// Verify
require(rocketMinipoolDelegate != rocketMinipoolDelegatePrev, "New delegate is the same as the existing one");
// Log event
emit DelegateUpgraded(rocketMinipoolDelegatePrev, rocketMinipoolDelegate, block.timestamp);
}
// Rollback to previous delegate contract
function delegateRollback() external onlyMinipoolOwner {
// Make sure they have upgraded before
require(rocketMinipoolDelegatePrev != address(0x0), "Previous delegate contract is not set");
// Store original
address originalDelegate = rocketMinipoolDelegate;
// Update delegate to previous and zero out previous
rocketMinipoolDelegate = rocketMinipoolDelegatePrev;
rocketMinipoolDelegatePrev = address(0x0);
// Log event
emit DelegateRolledBack(originalDelegate, rocketMinipoolDelegate, block.timestamp);
}
// If set to true, will automatically use the latest delegate contract
function setUseLatestDelegate(bool _setting) external onlyMinipoolOwner {
useLatestDelegate = _setting;
}
// Getter for useLatestDelegate setting
function getUseLatestDelegate() external view returns (bool) {
return useLatestDelegate;
}
// Returns the address of the minipool's stored delegate
function getDelegate() external view returns (address) {
return rocketMinipoolDelegate;
}
// Returns the address of the minipool's previous delegate (or address(0) if not set)
function getPreviousDelegate() external view returns (address) {
return rocketMinipoolDelegatePrev;
}
// Returns the delegate which will be used when calling this minipool taking into account useLatestDelegate setting
function getEffectiveDelegate() external view returns (address) {
return useLatestDelegate ? getContractAddress("rocketMinipoolDelegate") : rocketMinipoolDelegate;
}
// Delegate all other calls to minipool delegate contract
fallback(bytes calldata _input) external payable returns (bytes memory) {
// If useLatestDelegate is set, use the latest delegate contract
address delegateContract = useLatestDelegate ? getContractAddress("rocketMinipoolDelegate") : rocketMinipoolDelegate;
// Check for contract existence
require(contractExists(delegateContract), "Delegate contract does not exist");
// Execute delegatecall
(bool success, bytes memory data) = delegateContract.delegatecall(_input);
if (!success) { revert(getRevertMessage(data)); }
return data;
}
// Get the address of a Rocket Pool network contract
function getContractAddress(string memory _contractName) private view returns (address) {
address contractAddress = rocketStorage.getAddress(keccak256(abi.encodePacked("contract.address", _contractName)));
require(contractAddress != address(0x0), "Contract not found");
return contractAddress;
}
// Get a revert message from delegatecall return data
function getRevertMessage(bytes memory _returnData) private pure returns (string memory) {
if (_returnData.length < 68) { return "Transaction reverted silently"; }
assembly {
_returnData := add(_returnData, 0x04)
}
return abi.decode(_returnData, (string));
}
// Returns true if contract exists at _contractAddress (if called during that contract's construction it will return a false negative)
function contractExists(address _contractAddress) private returns (bool) {
uint32 codeSize;
assembly {
codeSize := extcodesize(_contractAddress)
}
return codeSize > 0;
}
}
// File: /contracts/contract/minipool/RocketMinipoolStorageLayout.sol
/**
* .
* / \
* |.'.|
* |'.'|
* ,'| |`.
* |,-'-|-'-.|
* __|_| | _ _ _____ _
* | ___ \| | | | | | ___ \ | |
* | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |
* | // _ \ / __| |/ / _ \ __| | __/ _ \ / _ \| |
* | |\ \ (_) | (__| < __/ |_ | | | (_) | (_) | |
* \_| \_\___/ \___|_|\_\___|\__| \_| \___/ \___/|_|
* +---------------------------------------------------+
* | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |
* +---------------------------------------------------+
*
* Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
* decentralised, trustless and compatible with staking in Ethereum 2.0.
*
* For more information about Rocket Pool, visit https://rocketpool.net
*
* Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
*
*/
pragma solidity 0.7.6;
// SPDX-License-Identifier: GPL-3.0-only
import "../../interface/RocketStorageInterface.sol";
import "../../types/MinipoolDeposit.sol";
import "../../types/MinipoolStatus.sol";
// The RocketMinipool contract storage layout, shared by RocketMinipoolDelegate
// ******************************************************
// Note: This contract MUST NOT BE UPDATED after launch.
// All deployed minipool contracts must maintain a
// Consistent storage layout with RocketMinipoolDelegate.
// ******************************************************
abstract contract RocketMinipoolStorageLayout {
// Storage state enum
enum StorageState {
Undefined,
Uninitialised,
Initialised
}
// Main Rocket Pool storage contract
RocketStorageInterface internal rocketStorage = RocketStorageInterface(0);
// Status
MinipoolStatus internal status;
uint256 internal statusBlock;
uint256 internal statusTime;
uint256 internal withdrawalBlock;
// Deposit type
MinipoolDeposit internal depositType;
// Node details
address internal nodeAddress;
uint256 internal nodeFee;
uint256 internal nodeDepositBalance;
bool internal nodeDepositAssigned;
uint256 internal nodeRefundBalance;
uint256 internal nodeSlashBalance;
// User deposit details
uint256 internal userDepositBalance;
uint256 internal userDepositAssignedTime;
// Upgrade options
bool internal useLatestDelegate = false;
address internal rocketMinipoolDelegate;
address internal rocketMinipoolDelegatePrev;
// Local copy of RETH address
address internal rocketTokenRETH;
// Local copy of penalty contract
address internal rocketMinipoolPenalty;
// Used to prevent direct access to delegate and prevent calling initialise more than once
StorageState storageState = StorageState.Undefined;
// Whether node operator has finalised the pool
bool internal finalised;
// Trusted member scrub votes
mapping(address => bool) memberScrubVotes;
uint256 totalScrubVotes;
}
// File: /contracts/interface/RocketStorageInterface.sol
/**
* .
* / \
* |.'.|
* |'.'|
* ,'| |`.
* |,-'-|-'-.|
* __|_| | _ _ _____ _
* | ___ \| | | | | | ___ \ | |
* | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |
* | // _ \ / __| |/ / _ \ __| | __/ _ \ / _ \| |
* | |\ \ (_) | (__| < __/ |_ | | | (_) | (_) | |
* \_| \_\___/ \___|_|\_\___|\__| \_| \___/ \___/|_|
* +---------------------------------------------------+
* | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |
* +---------------------------------------------------+
*
* Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
* decentralised, trustless and compatible with staking in Ethereum 2.0.
*
* For more information about Rocket Pool, visit https://rocketpool.net
*
* Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
*
*/
pragma solidity 0.7.6;
// SPDX-License-Identifier: GPL-3.0-only
interface RocketStorageInterface {
// Deploy status
function getDeployedStatus() external view returns (bool);
// Guardian
function getGuardian() external view returns(address);
function setGuardian(address _newAddress) external;
function confirmGuardian() external;
// Getters
function getAddress(bytes32 _key) external view returns (address);
function getUint(bytes32 _key) external view returns (uint);
function getString(bytes32 _key) external view returns (string memory);
function getBytes(bytes32 _key) external view returns (bytes memory);
function getBool(bytes32 _key) external view returns (bool);
function getInt(bytes32 _key) external view returns (int);
function getBytes32(bytes32 _key) external view returns (bytes32);
// Setters
function setAddress(bytes32 _key, address _value) external;
function setUint(bytes32 _key, uint _value) external;
function setString(bytes32 _key, string calldata _value) external;
function setBytes(bytes32 _key, bytes calldata _value) external;
function setBool(bytes32 _key, bool _value) external;
function setInt(bytes32 _key, int _value) external;
function setBytes32(bytes32 _key, bytes32 _value) external;
// Deleters
function deleteAddress(bytes32 _key) external;
function deleteUint(bytes32 _key) external;
function deleteString(bytes32 _key) external;
function deleteBytes(bytes32 _key) external;
function deleteBool(bytes32 _key) external;
function deleteInt(bytes32 _key) external;
function deleteBytes32(bytes32 _key) external;
// Arithmetic
function addUint(bytes32 _key, uint256 _amount) external;
function subUint(bytes32 _key, uint256 _amount) external;
// Protected storage
function getNodeWithdrawalAddress(address _nodeAddress) external view returns (address);
function getNodePendingWithdrawalAddress(address _nodeAddress) external view returns (address);
function setWithdrawalAddress(address _nodeAddress, address _newWithdrawalAddress, bool _confirm) external;
function confirmWithdrawalAddress(address _nodeAddress) external;
}
// File: /contracts/types/MinipoolDeposit.sol
/**
* .
* / \
* |.'.|
* |'.'|
* ,'| |`.
* |,-'-|-'-.|
* __|_| | _ _ _____ _
* | ___ \| | | | | | ___ \ | |
* | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |
* | // _ \ / __| |/ / _ \ __| | __/ _ \ / _ \| |
* | |\ \ (_) | (__| < __/ |_ | | | (_) | (_) | |
* \_| \_\___/ \___|_|\_\___|\__| \_| \___/ \___/|_|
* +---------------------------------------------------+
* | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |
* +---------------------------------------------------+
*
* Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
* decentralised, trustless and compatible with staking in Ethereum 2.0.
*
* For more information about Rocket Pool, visit https://rocketpool.net
*
* Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
*
*/
pragma solidity 0.7.6;
// SPDX-License-Identifier: GPL-3.0-only
// Represents the type of deposits required by a minipool
enum MinipoolDeposit {
None, // Marks an invalid deposit type
Full, // The minipool requires 32 ETH from the node operator, 16 ETH of which will be refinanced from user deposits
Half, // The minipool required 16 ETH from the node operator to be matched with 16 ETH from user deposits
Empty // The minipool requires 0 ETH from the node operator to be matched with 32 ETH from user deposits (trusted nodes only)
}
// File: /contracts/types/MinipoolStatus.sol
/**
* .
* / \
* |.'.|
* |'.'|
* ,'| |`.
* |,-'-|-'-.|
* __|_| | _ _ _____ _
* | ___ \| | | | | | ___ \ | |
* | |_/ /|__ ___| | _____| |_ | |_/ /__ ___ | |
* | // _ \ / __| |/ / _ \ __| | __/ _ \ / _ \| |
* | |\ \ (_) | (__| < __/ |_ | | | (_) | (_) | |
* \_| \_\___/ \___|_|\_\___|\__| \_| \___/ \___/|_|
* +---------------------------------------------------+
* | DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0 |
* +---------------------------------------------------+
*
* Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
* decentralised, trustless and compatible with staking in Ethereum 2.0.
*
* For more information about Rocket Pool, visit https://rocketpool.net
*
* Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
*
*/
pragma solidity 0.7.6;
// SPDX-License-Identifier: GPL-3.0-only
// Represents a minipool's status within the network
enum MinipoolStatus {
Initialised, // The minipool has been initialised and is awaiting a deposit of user ETH
Prelaunch, // The minipool has enough ETH to begin staking and is awaiting launch by the node operator
Staking, // The minipool is currently staking
Withdrawable, // The minipool has become withdrawable on the beacon chain and can be withdrawn from by the node operator
Dissolved // The minipool has been dissolved and its user deposited ETH has been returned to the deposit pool
}
| [{"inputs":[{"internalType":"contract RocketStorageInterface","name":"_rocketStorageAddress","type":"address"},{"internalType":"address","name":"_nodeAddress","type":"address"},{"internalType":"enum MinipoolDeposit","name":"_depositType","type":"uint8"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldDelegate","type":"address"},{"indexed":false,"internalType":"address","name":"newDelegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"DelegateRolledBack","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldDelegate","type":"address"},{"indexed":false,"internalType":"address","name":"newDelegate","type":"address"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"DelegateUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"EtherReceived","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"delegateRollback","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"delegateUpgrade","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getDelegate","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getEffectiveDelegate","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPreviousDelegate","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getUseLatestDelegate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_setting","type":"bool"}],"name":"setUseLatestDelegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.6+commit.7338295f | true | 15,000 | 0000000000000000000000001d8f8f00cfa6758d7bE78336684788Fb0ee0Fa4600000000000000000000000082ed7b4d62b6f1e297ed1cc598b42d61c89ea7910000000000000000000000000000000000000000000000000000000000000002 | istanbul | GNU GPLv3 | true | 0xa347c391bc8f740caba37672157c8aacd08ac567 | ipfs://9a6daedd83e54e66fbfbf927322718b812db513528d0b0bf4667b671d50dbd53 | |
OwnableDelegateProxy | 0x623294b970cde7b4b746c044bb03a0aaad3f8584 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
LBMS | 0x0f8e585de885e1c9c744c8fdf50efa8628506c71 | Solidity | // File: contracts/LBMS.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title: Pointillist
/// @author: manifold.xyz
import "./ERC721Creator.sol";
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// //
// //
// //
// ___ ___ ________ ________ ________ _____ ______ ________ ________ ________ //
// |\ \ |\ \|\ __ \|\ __ \|\ __ \ |\ _ \ _ \|\ __ \|\ ___ \|\ ____\ //
// \ \ \ \ \ \ \ \|\ /\ \ \|\ \ \ \|\ \ \ \ \\\__\ \ \ \ \|\ \ \ \\ \ \ \ \___|_ //
// \ \ \ \ \ \ \ __ \ \ _ _\ \ __ \ \ \ \\|__| \ \ \ \\\ \ \ \\ \ \ \_____ \ //
// \ \ \____\ \ \ \ \|\ \ \ \\ \\ \ \ \ \ \ \ \ \ \ \ \ \\\ \ \ \\ \ \|____|\ \ //
// \ \_______\ \__\ \_______\ \__\\ _\\ \__\ \__\ \ \__\ \ \__\ \_______\ \__\\ \__\____\_\ \ //
// \|_______|\|__|\|_______|\|__|\|__|\|__|\|__| \|__| \|__|\|_______|\|__| \|__|\_________\ //
// \|_________| //
// _________ ___ ___ _______ ________ ________ ___ ________ _________ ___ ___ ___ ___ ________ _________ //
// |\___ ___\\ \|\ \|\ ___ \ |\ __ \|\ __ \|\ \|\ ___ \|\___ ___\\ \|\ \ |\ \ |\ \|\ ____\|\___ ___\ //
// \|___ \ \_\ \ \\\ \ \ __/| \ \ \|\ \ \ \|\ \ \ \ \ \\ \ \|___ \ \_\ \ \ \ \ \ \ \ \ \ \ \ \___|\|___ \ \_| //
// \ \ \ \ \ __ \ \ \_|/__ \ \ ____\ \ \\\ \ \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \_____ \ \ \ \ //
// \ \ \ \ \ \ \ \ \ \_|\ \ \ \ \___|\ \ \\\ \ \ \ \ \\ \ \ \ \ \ \ \ \ \ \____\ \ \____\ \ \|____|\ \ \ \ \ //
// \ \__\ \ \__\ \__\ \_______\ \ \__\ \ \_______\ \__\ \__\\ \__\ \ \__\ \ \__\ \_______\ \_______\ \__\____\_\ \ \ \__\ //
// \|__| \|__|\|__|\|_______| \|__| \|_______|\|__|\|__| \|__| \|__| \|__|\|_______|\|_______|\|__|\_________\ \|__| //
// \|_________| //
// //
// //
// Twitter @libramons //
// www.libramons.com //
// //
// //
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
contract LBMS is ERC721Creator {
constructor() ERC721Creator("Pointillist", "LBMS") {}
}
// File: contracts/ERC721Creator.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @author: manifold.xyz
import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";
contract ERC721Creator is Proxy {
constructor(string memory name, string memory symbol) {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a;
Address.functionDelegateCall(
0xe4E4003afE3765Aca8149a82fc064C0b125B9e5a,
abi.encodeWithSignature("initialize(string,string)", name, symbol)
);
}
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function implementation() public view returns (address) {
return _implementation();
}
function _implementation() internal override view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
}
// File: @openzeppelin/contracts/proxy/Proxy.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overridden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly {
r.slot := slot
}
}
}
| [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.7+commit.e28d00a7 | true | 300 | Default | true | 0xe4e4003afe3765aca8149a82fc064c0b125b9e5a | ||||
UniswapV2Pair | 0xb4d5adfef34a61abf488b3079ac0d5c9fc0cbabf | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | 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ion"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
IQONIQ | 0x68a9d92fe19399feebed6a9a0980a7ea7638074c | Solidity | pragma solidity ^0.4.23;
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/179
*/
contract ERC20Basic {
function totalSupply() public view returns (uint256);
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, throws on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
// Gas optimization: this is cheaper than asserting 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
c = a * b;
assert(c / a == b);
return c;
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
// uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return a / b;
}
/**
* @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
/**
* @dev Adds two numbers, throws on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
c = a + b;
assert(c >= a);
return c;
}
}
/**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
uint256 totalSupply_;
/**
* @dev total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender)
public
view
returns (uint256);
function transferFrom(
address from,
address to,
uint256 value
) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is ERC20, BasicToken {
mapping(address => mapping(address => uint256)) internal allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
) public returns (bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
*
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(address _spender, uint256 _addedValue)
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue)
);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
*
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(address _spender, uint256 _subtractedValue)
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0));
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
}
contract FreezableToken is StandardToken {
// freezing chains
mapping(bytes32 => uint64) internal chains;
// freezing amounts for each chain
mapping(bytes32 => uint256) internal freezings;
// total freezing balance per address
mapping(address => uint256) internal freezingBalance;
event Freezed(address indexed to, uint64 release, uint256 amount);
event Released(address indexed owner, uint256 amount);
/**
* @dev Gets the balance of the specified address include freezing tokens.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256 balance) {
return super.balanceOf(_owner) + freezingBalance[_owner];
}
/**
* @dev Gets the balance of the specified address without freezing tokens.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function actualBalanceOf(address _owner)
public
view
returns (uint256 balance)
{
return super.balanceOf(_owner);
}
function freezingBalanceOf(address _owner)
public
view
returns (uint256 balance)
{
return freezingBalance[_owner];
}
/**
* @dev gets freezing count
* @param _addr Address of freeze tokens owner.
*/
function freezingCount(address _addr) public view returns (uint256 count) {
uint64 release = chains[toKey(_addr, 0)];
while (release != 0) {
count++;
release = chains[toKey(_addr, release)];
}
}
/**
* @dev gets freezing end date and freezing balance for the freezing portion specified by index.
* @param _addr Address of freeze tokens owner.
* @param _index Freezing portion index. It ordered by release date descending.
*/
function getFreezing(address _addr, uint256 _index)
public
view
returns (uint64 _release, uint256 _balance)
{
for (uint256 i = 0; i < _index + 1; i++) {
_release = chains[toKey(_addr, _release)];
if (_release == 0) {
return;
}
}
_balance = freezings[toKey(_addr, _release)];
}
/**
* @dev freeze your tokens to the specified address.
* Be careful, gas usage is not deterministic,
* and depends on how many freezes _to address already has.
* @param _to Address to which token will be freeze.
* @param _amount Amount of token to freeze.
* @param _until Release date, must be in future.
*/
function freezeTo(
address _to,
uint256 _amount,
uint64 _until
) public {
require(_to != address(0));
require(_amount <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_amount);
bytes32 currentKey = toKey(_to, _until);
freezings[currentKey] = freezings[currentKey].add(_amount);
freezingBalance[_to] = freezingBalance[_to].add(_amount);
freeze(_to, _until);
emit Transfer(msg.sender, _to, _amount);
emit Freezed(_to, _until, _amount);
}
/**
* @dev release first available freezing tokens.
*/
function releaseOnce() public {
bytes32 headKey = toKey(msg.sender, 0);
uint64 head = chains[headKey];
require(head != 0);
require(uint64(block.timestamp) > head);
bytes32 currentKey = toKey(msg.sender, head);
uint64 next = chains[currentKey];
uint256 amount = freezings[currentKey];
delete freezings[currentKey];
balances[msg.sender] = balances[msg.sender].add(amount);
freezingBalance[msg.sender] = freezingBalance[msg.sender].sub(amount);
if (next == 0) {
delete chains[headKey];
} else {
chains[headKey] = next;
delete chains[currentKey];
}
emit Released(msg.sender, amount);
}
/**
* @dev release all available for release freezing tokens. Gas usage is not deterministic!
* @return how many tokens was released
*/
function releaseAll() public returns (uint256 tokens) {
uint256 release;
uint256 balance;
(release, balance) = getFreezing(msg.sender, 0);
while (release != 0 && block.timestamp > release) {
releaseOnce();
tokens += balance;
(release, balance) = getFreezing(msg.sender, 0);
}
}
function toKey(address _addr, uint256 _release)
internal
pure
returns (bytes32 result)
{
// WISH masc to increase entropy
result = 0x5749534800000000000000000000000000000000000000000000000000000000;
assembly {
result := or(result, mul(_addr, 0x10000000000000000))
result := or(result, and(_release, 0xffffffffffffffff))
}
}
function freeze(address _to, uint64 _until) internal {
require(_until > block.timestamp);
bytes32 key = toKey(_to, _until);
bytes32 parentKey = toKey(_to, uint64(0));
uint64 next = chains[parentKey];
if (next == 0) {
chains[parentKey] = _until;
return;
}
bytes32 nextKey = toKey(_to, next);
uint256 parent;
while (next != 0 && _until > next) {
parent = next;
parentKey = nextKey;
next = chains[nextKey];
nextKey = toKey(_to, next);
}
if (_until == next) {
return;
}
if (next != 0) {
chains[key] = next;
}
chains[parentKey] = _until;
}
}
/**
* @title Burnable Token
* @dev Token that can be irreversibly burned (destroyed).
*/
contract BurnableToken is BasicToken {
event Burn(address indexed burner, uint256 value);
/**
* @dev Burns a specific amount of tokens.
* @param _value The amount of token to be burned.
*/
function burn(uint256 _value) public {
_burn(msg.sender, _value);
}
function _burn(address _who, uint256 _value) internal {
require(_value <= balances[_who]);
// no need to require value <= totalSupply, since that would imply the
// sender's balance is greater than the totalSupply, which *should* be an assertion failure
balances[_who] = balances[_who].sub(_value);
totalSupply_ = totalSupply_.sub(_value);
emit Burn(_who, _value);
emit Transfer(_who, address(0), _value);
}
}
/**
* @title Pausable
* @dev Base contract which allows children to implement an emergency stop mechanism.
*/
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused);
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused);
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
}
contract Consts {
uint256 public constant TOKEN_DECIMALS = 18;
uint8 public constant TOKEN_DECIMALS_UINT8 = 18;
uint256 public constant TOKEN_DECIMAL_MULTIPLIER = 10**TOKEN_DECIMALS;
string public constant TOKEN_NAME = "IQONIQ";
string public constant TOKEN_SYMBOL = "IQQ";
bool public constant PAUSED = false;
address public constant TARGET_USER =
0x6d1DAEA80bCce8423A0Fc703c3B48A8909E226Cd;
}
contract IQONIQ is Consts, FreezableToken, BurnableToken, Pausable {
event Initialized();
bool public initialized = false;
constructor() public {
init();
transferOwnership(TARGET_USER);
}
function name() public pure returns (string _name) {
return TOKEN_NAME;
}
function symbol() public pure returns (string _symbol) {
return TOKEN_SYMBOL;
}
function decimals() public pure returns (uint8 _decimals) {
return TOKEN_DECIMALS_UINT8;
}
function transferFrom(
address _from,
address _to,
uint256 _value
) public returns (bool _success) {
require(!paused);
return super.transferFrom(_from, _to, _value);
}
function transfer(address _to, uint256 _value)
public
returns (bool _success)
{
require(!paused);
return super.transfer(_to, _value);
}
function init() private {
require(!initialized);
initialized = true;
if (PAUSED) {
pause();
}
address[1] memory addresses =
[address(0x88949d221A62EdAF3dE7407F488C921EcD56031f)];
uint256[1] memory amounts = [uint256(2500000000000000000000000000)];
uint64[1] memory freezes = [uint64(0)];
for (uint256 i = 0; i < addresses.length; i++) {
if (freezes[i] == 0) {
totalSupply_ = totalSupply_.add(amounts[i]);
balances[addresses[i]] = balances[addresses[i]].add(amounts[i]);
} else {
totalSupply_ = totalSupply_.add(amounts[i]);
bytes32 currentKey = toKey(addresses[i], freezes[i]);
freezings[currentKey] = freezings[currentKey].add(amounts[i]);
freezingBalance[addresses[i]] = freezingBalance[addresses[i]].add(amounts[i]);
freeze(addresses[i], freezes[i]);
}
}
emit Initialized();
}
} | [{"constant":true,"inputs":[{"name":"_addr","type":"address"},{"name":"_index","type":"uint256"}],"name":"getFreezing","outputs":[{"name":"_release","type":"uint64"},{"name":"_balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"_name","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"initialized","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"actualBalanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"TOKEN_NAME","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"_success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"TOKEN_SYMBOL","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"_decimals","type":"uint8"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_until","type":"uint64"}],"name":"freezeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"burn","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"TOKEN_DECIMAL_MULTIPLIER","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"TOKEN_DECIMALS","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"releaseAll","outputs":[{"name":"tokens","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"releaseOnce","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"TARGET_USER","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"_symbol","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"_success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"PAUSED","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"freezingCount","outputs":[{"name":"count","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"TOKEN_DECIMALS_UINT8","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"freezingBalanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"burner","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"release","type":"uint64"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"Freezed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"Released","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}] | v0.4.24+commit.e67f0147 | true | 200 | Default | GNU GPLv3 | false | bzzr://d6c37530bbdab87b34380e709ea0540ce09eb9da0174eabceef0c051d95ac409 | |||
UniswapV2Pair | 0xb2496ff935d7a70640dbfdce268e478eaa2f636b | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
OwnableDelegateProxy | 0xd43644c1bf515e60de90fd3123e43349a3518040 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
NFTCollection | 0x1ee276b92263b12b191946ae4f481700e96449cb | Solidity | // File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721Upgradeable.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address from, address to, uint256 tokenId) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
*
* WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
* being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
* that `ownerOf(tokenId)` is `a`.
*/
// solhint-disable-next-line func-name-mixedcase
function __unsafe_increaseBalance(address account, uint256 amount) internal {
_balances[account] += amount;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUpgradeable {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1, "Math: mulDiv overflow");
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/math/SignedMathUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMathUpgradeable {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/MathUpgradeable.sol";
import "./math/SignedMathUpgradeable.sol";
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = MathUpgradeable.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value))));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, MathUpgradeable.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
// File: @openzeppelin/contracts/utils/ShortStrings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)
pragma solidity ^0.8.8;
import "./StorageSlot.sol";
// | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
// | length | 0x BB |
type ShortString is bytes32;
/**
* @dev This library provides functions to convert short memory strings
* into a `ShortString` type that can be used as an immutable variable.
*
* Strings of arbitrary length can be optimized using this library if
* they are short enough (up to 31 bytes) by packing them with their
* length (1 byte) in a single EVM word (32 bytes). Additionally, a
* fallback mechanism can be used for every other case.
*
* Usage example:
*
* ```solidity
* contract Named {
* using ShortStrings for *;
*
* ShortString private immutable _name;
* string private _nameFallback;
*
* constructor(string memory contractName) {
* _name = contractName.toShortStringWithFallback(_nameFallback);
* }
*
* function name() external view returns (string memory) {
* return _name.toStringWithFallback(_nameFallback);
* }
* }
* ```
*/
library ShortStrings {
// Used as an identifier for strings longer than 31 bytes.
bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;
error StringTooLong(string str);
error InvalidShortString();
/**
* @dev Encode a string of at most 31 chars into a `ShortString`.
*
* This will trigger a `StringTooLong` error is the input string is too long.
*/
function toShortString(string memory str) internal pure returns (ShortString) {
bytes memory bstr = bytes(str);
if (bstr.length > 31) {
revert StringTooLong(str);
}
return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
}
/**
* @dev Decode a `ShortString` back to a "normal" string.
*/
function toString(ShortString sstr) internal pure returns (string memory) {
uint256 len = byteLength(sstr);
// using `new string(len)` would work locally but is not memory safe.
string memory str = new string(32);
/// @solidity memory-safe-assembly
assembly {
mstore(str, len)
mstore(add(str, 0x20), sstr)
}
return str;
}
/**
* @dev Return the length of a `ShortString`.
*/
function byteLength(ShortString sstr) internal pure returns (uint256) {
uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
if (result > 31) {
revert InvalidShortString();
}
return result;
}
/**
* @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
*/
function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
if (bytes(value).length < 32) {
return toShortString(value);
} else {
StorageSlot.getStringSlot(store).value = value;
return ShortString.wrap(_FALLBACK_SENTINEL);
}
}
/**
* @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
*/
function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
return toString(value);
} else {
return store;
}
}
/**
* @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
*
* WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
* actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
*/
function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
return byteLength(value);
} else {
return bytes(store).length;
}
}
}
// File: @openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```solidity
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
* _Available since v4.9 for `string`, `bytes`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` with member `value` located at `slot`.
*/
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` representation of the string storage pointer `store`.
*/
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
/**
* @dev Returns an `BytesSlot` with member `value` located at `slot`.
*/
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
*/
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
}
// File: contracts/collectionTemplates/NFTCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../interfaces/internal/INFTCollectionInitializer.sol";
import "../libraries/AddressLibrary.sol";
import "../mixins/collections/CollectionRoyalties.sol";
import "../mixins/collections/NFTCollectionType.sol";
import "../mixins/collections/SequentialMintCollection.sol";
import "../mixins/collections/TokenLimitedCollection.sol";
import "../mixins/shared/ContractFactory.sol";
error NFTCollection_Max_Token_Id_Has_Already_Been_Minted(uint256 maxTokenId);
error NFTCollection_Token_CID_Already_Minted();
error NFTCollection_Token_CID_Required();
error NFTCollection_Token_Creator_Payment_Address_Required();
/**
* @title A collection of 1:1 NFTs by a single creator.
* @notice A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
* @author batu-inal & HardlyDifficult
*/
contract NFTCollection is
INFTCollectionInitializer,
ContractFactory,
Initializable,
ERC165Upgradeable,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
NFTCollectionType,
SequentialMintCollection,
TokenLimitedCollection,
CollectionRoyalties
{
using AddressLibrary for address;
using AddressUpgradeable for address;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @notice Stores hashes minted to prevent duplicates.
* @dev 0 means not yet minted, set to 1 when minted.
* For why using uint is better than using bool here:
* github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
*/
mapping(string => uint256) private cidToMinted;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
/**
* @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
* @param baseURI The new base URI to use.
*/
event BaseURIUpdated(string baseURI);
/**
* @notice Emitted when a new NFT is minted.
* @param creator The address of the collection owner at this time this NFT was minted.
* @param tokenId The tokenId of the newly minted NFT.
* @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
* @param tokenCID The actual CID of the newly minted NFT.
*/
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
/**
* @notice Emitted when the payment address for creator royalties is set.
* @param fromPaymentAddress The original address used for royalty payments.
* @param toPaymentAddress The new address used for royalty payments.
* @param tokenId The NFT which had the royalty payment address updated.
*/
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory) ContractFactory(_contractFactory) NFTCollectionType(NFT_COLLECTION_TYPE) {
// The template will be initialized by the factory when it's registered for use.
}
/**
* @notice Called by the contract factory on creation.
* @param _creator The creator of this collection.
* @param _name The collection's `name`.
* @param _symbol The collection's `symbol`.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol
) external initializer onlyContractFactory {
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator);
// maxTokenId defaults to 0 but may be assigned later on.
}
/**
* @notice Mint an NFT defined by its metadata path.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mint(string calldata tokenCID) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddress(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress
) public returns (uint256 tokenId) {
if (tokenCreatorPaymentAddress == address(0)) {
revert NFTCollection_Token_Creator_Payment_Address_Required();
}
tokenId = _mint(tokenCID);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddressAndApprove(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactory(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the collection creator to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
* @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
*/
function selfDestruct() external onlyOwner {
_selfDestruct();
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
* @param baseURIOverride The new base URI to use for all NFTs in this collection.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* This max may be more than the final `totalSupply` if 1 or more tokens were burned.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
_updateMaxTokenId(_maxTokenId);
}
/**
* @inheritdoc ERC721Upgradeable
* @dev The function here asserts `onlyOwner` while the super confirms ownership.
*/
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) onlyOwner {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
super._burn(tokenId);
}
function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
if (bytes(tokenCID).length == 0) {
revert NFTCollection_Token_CID_Required();
}
if (cidToMinted[tokenCID] != 0) {
revert NFTCollection_Token_CID_Already_Minted();
}
// If the mint will exceed uint32, the addition here will overflow. But it's not realistic to mint that many tokens.
tokenId = ++latestTokenId;
if (maxTokenId != 0 && tokenId > maxTokenId) {
revert NFTCollection_Max_Token_Id_Has_Already_Been_Minted(maxTokenId);
}
cidToMinted[tokenCID] = 1;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId);
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
/**
* @notice The base URI used for all NFTs in this collection.
* @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
* e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
* @return uri The base URI used by this collection.
*/
function baseURI() external view returns (string memory uri) {
uri = _baseURI();
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
* @param tokenCID The CID to check for.
* @return hasBeenMinted True if the creator has already minted an NFT with this CID.
*/
function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
hasBeenMinted = cidToMinted[tokenCID] != 0;
}
/**
* @inheritdoc CollectionRoyalties
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view override returns (address payable creatorPaymentAddress) {
creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(
bytes4 interfaceId
)
public
view
override(ERC165Upgradeable, ERC721Upgradeable, NFTCollectionType, CollectionRoyalties)
returns (bool interfaceSupported)
{
interfaceSupported = super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC721MetadataUpgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
_requireMinted(tokenId);
uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
}
function _baseURI() internal view override returns (string memory uri) {
uri = baseURI_;
if (bytes(uri).length == 0) {
uri = "ipfs://";
}
}
}
// File: contracts/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @title Declares the interface for initializing an NFTCollection contract.
* @author batu-inal & HardlyDifficult
*/
interface INFTCollectionInitializer {
function initialize(address payable _creator, string memory _name, string memory _symbol) external;
}
// File: contracts/interfaces/internal/INFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @title Declares the type of the collection contract.
* @dev This interface is declared as an ERC-165 interface.
* @author reggieag
*/
interface INFTCollectionType {
function getNFTCollectionType() external view returns (string memory collectionType);
}
// File: contracts/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
/**
* @notice Get the recipient addresses to which creator royalties should be sent.
* @dev The expected royalty amounts are communicated with `getFeeBps`.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
/**
* @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
* @dev The expected recipients are communicated with `getFeeRecipients`.
* @param tokenId The ID of the NFT to get royalties for.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
interface IGetRoyalties {
/**
* @notice Get the creator royalties to be sent.
* @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/**
* @notice Get the creator royalties to be sent.
* @param tokenId The ID of the NFT to get royalties for.
* @param salePrice The total price of the sale.
* @return receiver The address to which royalties should be sent.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount);
}
// File: contracts/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
interface ITokenCreator {
/**
* @notice Returns the creator of this NFT collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creator The creator of this collection.
*/
function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// File: contracts/libraries/AddressLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
address target;
bytes callData;
}
error AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(address addressReturned);
/**
* @title A library for address helpers not already covered by the OZ library.
* @author batu-inal & HardlyDifficult
*/
library AddressLibrary {
using AddressUpgradeable for address;
using AddressUpgradeable for address payable;
/**
* @notice Calls an external contract with arbitrary data and parse the return value into an address.
* @param externalContract The address of the contract to call.
* @param callData The data to send to the contract.
* @return contractAddress The address of the contract returned by the call.
*/
function callAndReturnContractAddress(
address externalContract,
bytes calldata callData
) internal returns (address payable contractAddress) {
bytes memory returnData = externalContract.functionCall(callData);
contractAddress = abi.decode(returnData, (address));
if (!contractAddress.isContract()) {
revert AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(contractAddress);
}
}
function callAndReturnContractAddress(
CallWithoutValue calldata call
) internal returns (address payable contractAddress) {
contractAddress = callAndReturnContractAddress(call.target, call.callData);
}
}
// File: contracts/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
* @author batu-inal & HardlyDifficult
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @inheritdoc IGetFees
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @inheritdoc IGetFees
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function getFeeBps(uint256 /* tokenId */) external pure returns (uint256[] memory royaltiesInBasisPoints) {
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @inheritdoc IGetRoyalties
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the creator proceeds/royalties for the collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creatorPaymentAddress The address to which royalties should be paid.
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view virtual returns (address payable creatorPaymentAddress);
/**
* @inheritdoc IRoyaltyInfo
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc IERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
super.supportsInterface(interfaceId));
}
}
// File: contracts/mixins/collections/NFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts/utils/ShortStrings.sol";
import "../../interfaces/internal/INFTCollectionType.sol";
/**
* @title A mixin to add the NFTCollectionType interface to a contract.
* @author HardlyDifficult & reggieag
*/
abstract contract NFTCollectionType is INFTCollectionType, ERC165Upgradeable {
using ShortStrings for string;
using ShortStrings for ShortString;
ShortString private immutable _collectionTypeName;
constructor(string memory collectionTypeName) {
_collectionTypeName = collectionTypeName.toShortString();
}
/**
* @notice Returns a name of the type of collection this contract represents.
* @return collectionType The collection type.
*/
function getNFTCollectionType() external view returns (string memory collectionType) {
collectionType = _collectionTypeName.toString();
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = interfaceId == type(INFTCollectionType).interfaceId || super.supportsInterface(interfaceId);
}
}
// File: contracts/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
error SequentialMintCollection_Caller_Is_Not_Owner(address owner);
error SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(uint256 totalSupply);
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
* @author batu-inal & HardlyDifficult
*/
abstract contract SequentialMintCollection is ITokenCreator, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
* @return The collection's creator/owner address.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
* @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
*/
uint32 public latestTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
// 32-bits free space
/****** End of storage ******/
/**
* @notice Emitted when this collection is self destructed by the creator/owner/admin.
* @param admin The account which requested this contract be self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyOwner() {
if (msg.sender != owner) {
revert SequentialMintCollection_Caller_Is_Not_Owner(owner);
}
_;
}
function _initializeSequentialMintCollection(address payable _creator) internal {
owner = _creator;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
if (totalSupply() != 0) {
revert SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(totalSupply());
}
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @inheritdoc ITokenCreator
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function tokenCreator(uint256 /* tokenId */) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Returns the total amount of tokens stored by the contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// File: contracts/mixins/collections/TokenLimitedCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "./SequentialMintCollection.sol";
error TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_May_Not_Increase(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(uint256 currentMintedCount);
error TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
/**
* @title Defines an upper limit on the number of tokens which may be minted by this collection.
* @author HardlyDifficult
*/
abstract contract TokenLimitedCollection is SequentialMintCollection {
/**
* @notice The max tokenId which can be minted.
* @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
* @return The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Emitted when the max tokenId supported by this collection is updated.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
function _initializeTokenLimitedCollection(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
// When 0 is desired, the collection may choose to simply not call this initializer.
revert TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
}
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(maxTokenId);
}
if (maxTokenId != 0 && _maxTokenId >= maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Increase(maxTokenId);
}
if (latestTokenId > _maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(latestTokenId);
}
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
}
// File: contracts/mixins/shared/Constants.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10_000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
////////////////////////////////////////////////////////////////
// Royalties & Take Rates
////////////////////////////////////////////////////////////////
/**
* @dev The max take rate an exhibition can have.
*/
uint256 constant MAX_EXHIBITION_TAKE_RATE = 5_000;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
* @dev Reward paid to referrers when a sale is made.
* Set to 1% of the sale amount. This 1% is deducted from the protocol fee.
*/
uint96 constant BUY_REFERRER_IN_BASIS_POINTS = 100;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
* @dev 1%, expressed as a denominator for more efficient calculations.
*/
uint256 constant BUY_REFERRER_RATIO = BASIS_POINTS / BUY_REFERRER_IN_BASIS_POINTS;
////////////////////////////////////////////////////////////////
// Gas Limits
////////////////////////////////////////////////////////////////
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
////////////////////////////////////////////////////////////////
// Collection Type Names
////////////////////////////////////////////////////////////////
/**
* @dev The NFT collection type.
*/
string constant NFT_COLLECTION_TYPE = "NFT Collection";
/**
* @dev The NFT drop collection type.
*/
string constant NFT_DROP_COLLECTION_TYPE = "NFT Drop Collection";
/**
* @dev The NFT timed edition collection type.
*/
string constant NFT_TIMED_EDITION_COLLECTION_TYPE = "NFT Timed Edition Collection";
/**
* @dev The NFT limited edition collection type.
*/
string constant NFT_LIMITED_EDITION_COLLECTION_TYPE = "NFT Limited Edition Collection";
////////////////////////////////////////////////////////////////
// Business Logic
////////////////////////////////////////////////////////////////
/**
* @dev Limits scheduled start/end times to be less than 2 years in the future.
*/
uint256 constant MAX_SCHEDULED_TIME_IN_THE_FUTURE = 365 days * 2;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
/**
* @dev Protocol fee for edition mints in basis points.
*/
uint256 constant EDITION_PROTOCOL_FEE_IN_BASIS_POINTS = 500;
/**
* @dev Hash of the edition type names.
* This is precalculated in order to save gas on use.
* `keccak256(abi.encodePacked(NFT_TIMED_EDITION_COLLECTION_TYPE))`
*/
bytes32 constant timedEditionTypeHash = 0xee2afa3f960e108aca17013728aafa363a0f4485661d9b6f41c6b4ddb55008ee;
bytes32 constant limitedEditionTypeHash = 0x7df1f68d01ab1a6ee0448a4c3fbda832177331ff72c471b12b0051c96742eef5;
// File: contracts/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
error ContractFactory_Only_Callable_By_Factory_Contract(address contractFactory);
error ContractFactory_Factory_Is_Not_A_Contract();
/**
* @title Stores a reference to the factory which is used to create contract proxies.
* @author batu-inal & HardlyDifficult
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
* @return The factory contract address.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
if (msg.sender != contractFactory) {
revert ContractFactory_Only_Callable_By_Factory_Contract(contractFactory);
}
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
if (!_contractFactory.isContract()) {
revert ContractFactory_Factory_Is_Not_A_Contract();
}
contractFactory = _contractFactory;
}
}
| [{"inputs":[{"internalType":"address","name":"_contractFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"addressReturned","type":"address"}],"name":"AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract","type":"error"},{"inputs":[],"name":"ContractFactory_Factory_Is_Not_A_Contract","type":"error"},{"inputs":[{"internalType":"address","name":"contractFactory","type":"address"}],"name":"ContractFactory_Only_Callable_By_Factory_Contract","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[{"internalType":"uint256","name":"maxTokenId","type":"uint256"}],"name":"NFTCollection_Max_Token_Id_Has_Already_Been_Minted","type":"error"},{"inputs":[],"name":"NFTCollection_Token_CID_Already_Minted","type":"error"},{"inputs":[],"name":"NFTCollection_Token_CID_Required","type":"error"},{"inputs":[],"name":"NFTCollection_Token_Creator_Payment_Address_Required","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"SequentialMintCollection_Caller_Is_Not_Owner","type":"error"},{"inputs":[{"internalType":"uint256","name":"totalSupply","type":"uint256"}],"name":"SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[{"internalType":"uint256","name":"currentMaxTokenId","type":"uint256"}],"name":"TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared","type":"error"},{"inputs":[{"internalType":"uint256","name":"currentMaxTokenId","type":"uint256"}],"name":"TokenLimitedCollection_Max_Token_Id_May_Not_Increase","type":"error"},{"inputs":[{"internalType":"uint256","name":"currentMintedCount","type":"uint256"}],"name":"TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"baseURI","type":"string"}],"name":"BaseURIUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"maxTokenId","type":"uint256"}],"name":"MaxTokenIdUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"creator","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"string","name":"indexedTokenCID","type":"string"},{"indexed":false,"internalType":"string","name":"tokenCID","type":"string"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"admin","type":"address"}],"name":"SelfDestruct","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"fromPaymentAddress","type":"address"},{"indexed":true,"internalType":"address","name":"toPaymentAddress","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenCreatorPaymentAddressSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"uri","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"royaltiesInBasisPoints","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"getHasMintedCID","outputs":[{"internalType":"bool","name":"hasBeenMinted","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNFTCollectionType","outputs":[{"internalType":"string","name":"collectionType","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getRoyalties","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"royaltiesInBasisPoints","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenCreatorPaymentAddress","outputs":[{"internalType":"address payable","name":"creatorPaymentAddress","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"_creator","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestTokenId","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokenId","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"}],"name":"mintWithCreatorPaymentAddress","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintWithCreatorPaymentAddressAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCall","type":"bytes"}],"name":"mintWithCreatorPaymentFactory","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCall","type":"bytes"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintWithCreatorPaymentFactoryAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"selfDestruct","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"interfaceSupported","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenCreator","outputs":[{"internalType":"address payable","name":"creator","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"uri","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"supply","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURIOverride","type":"string"}],"name":"updateBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_maxTokenId","type":"uint32"}],"name":"updateMaxTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.20+commit.a1b79de6 | true | 1,337,000 | 000000000000000000000000612e2daddc89d91409e40f946f9f7cfe422e777e | Default | false | ||||
LiquidateLoan | 0x23d3879faca158d1bd3f32b9be4e520a39d03077 | Solidity | // SPDX-License-Identifier: MIT
pragma solidity >=0.6.2;
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);
function getAmountsIn(uint256 amountOut, address[] calldata path)
external
view
returns (uint256[] memory amounts);
}
pragma solidity >=0.6.2;
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
pragma solidity ^0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
pragma solidity 0.8.16;
library DataTypes {
// refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties.
struct ReserveData {
//stores the reserve configuration
ReserveConfigurationMap configuration;
//the liquidity index. Expressed in ray
uint128 liquidityIndex;
//variable borrow index. Expressed in ray
uint128 variableBorrowIndex;
//the current supply rate. Expressed in ray
uint128 currentLiquidityRate;
//the current variable borrow rate. Expressed in ray
uint128 currentVariableBorrowRate;
//the current stable borrow rate. Expressed in ray
uint128 currentStableBorrowRate;
uint40 lastUpdateTimestamp;
//tokens addresses
address aTokenAddress;
address stableDebtTokenAddress;
address variableDebtTokenAddress;
//address of the interest rate strategy
address interestRateStrategyAddress;
//the id of the reserve. Represents the position in the list of the active reserves
uint8 id;
}
struct ReserveConfigurationMap {
//bit 0-15: LTV
//bit 16-31: Liq. threshold
//bit 32-47: Liq. bonus
//bit 48-55: Decimals
//bit 56: Reserve is active
//bit 57: reserve is frozen
//bit 58: borrowing is enabled
//bit 59: stable rate borrowing enabled
//bit 60-63: reserved
//bit 64-79: reserve factor
uint256 data;
}
struct UserConfigurationMap {
uint256 data;
}
enum InterestRateMode {
NONE,
STABLE,
VARIABLE
}
}
pragma solidity 0.8.16;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount)
external
returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender)
external
view
returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
interface IFlashLoanReceiver {
function executeOperation(
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata premiums,
address initiator,
bytes calldata params
) external returns (bool);
}
/**
* @title LendingPoolAddressesProvider contract
* @dev Main registry of addresses part of or connected to the protocol, including permissioned roles
* - Acting also as factory of proxies and admin of those, so with right to change its implementations
* - Owned by the Aave Governance
* @author Aave
**/
interface ILendingPoolAddressesProvider {
event LendingPoolUpdated(address indexed newAddress);
event ConfigurationAdminUpdated(address indexed newAddress);
event EmergencyAdminUpdated(address indexed newAddress);
event LendingPoolConfiguratorUpdated(address indexed newAddress);
event LendingPoolCollateralManagerUpdated(address indexed newAddress);
event PriceOracleUpdated(address indexed newAddress);
event LendingRateOracleUpdated(address indexed newAddress);
event ProxyCreated(bytes32 id, address indexed newAddress);
event AddressSet(bytes32 id, address indexed newAddress, bool hasProxy);
function setAddress(bytes32 id, address newAddress) external;
function setAddressAsProxy(bytes32 id, address impl) external;
function getAddress(bytes32 id) external view returns (address);
function getLendingPool() external view returns (address);
function setLendingPoolImpl(address pool) external;
function getLendingPoolConfigurator() external view returns (address);
function setLendingPoolConfiguratorImpl(address configurator) external;
function getLendingPoolCollateralManager() external view returns (address);
function setLendingPoolCollateralManager(address manager) external;
function getPoolAdmin() external view returns (address);
function setPoolAdmin(address admin) external;
function getEmergencyAdmin() external view returns (address);
function setEmergencyAdmin(address admin) external;
function getPriceOracle() external view returns (address);
function setPriceOracle(address priceOracle) external;
function getLendingRateOracle() external view returns (address);
function setLendingRateOracle(address lendingRateOracle) external;
}
interface ILendingPool {
/**
* @dev Emitted on deposit()
* @param reserve The address of the underlying asset of the reserve
* @param user The address initiating the deposit
* @param onBehalfOf The beneficiary of the deposit, receiving the aTokens
* @param amount The amount deposited
* @param referral The referral code used
**/
event Deposit(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint16 indexed referral
);
/**
* @dev Emitted on withdraw()
* @param reserve The address of the underlyng asset being withdrawn
* @param user The address initiating the withdrawal, owner of aTokens
* @param to Address that will receive the underlying
* @param amount The amount to be withdrawn
**/
event Withdraw(
address indexed reserve,
address indexed user,
address indexed to,
uint256 amount
);
/**
* @dev Emitted on borrow() and flashLoan() when debt needs to be opened
* @param reserve The address of the underlying asset being borrowed
* @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just
* initiator of the transaction on flashLoan()
* @param onBehalfOf The address that will be getting the debt
* @param amount The amount borrowed out
* @param borrowRateMode The rate mode: 1 for Stable, 2 for Variable
* @param borrowRate The numeric rate at which the user has borrowed
* @param referral The referral code used
**/
event Borrow(
address indexed reserve,
address user,
address indexed onBehalfOf,
uint256 amount,
uint256 borrowRateMode,
uint256 borrowRate,
uint16 indexed referral
);
/**
* @dev Emitted on repay()
* @param reserve The address of the underlying asset of the reserve
* @param user The beneficiary of the repayment, getting his debt reduced
* @param repayer The address of the user initiating the repay(), providing the funds
* @param amount The amount repaid
**/
event Repay(
address indexed reserve,
address indexed user,
address indexed repayer,
uint256 amount
);
/**
* @dev Emitted on swapBorrowRateMode()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user swapping his rate mode
* @param rateMode The rate mode that the user wants to swap to
**/
event Swap(address indexed reserve, address indexed user, uint256 rateMode);
/**
* @dev Emitted on setUserUseReserveAsCollateral()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user enabling the usage as collateral
**/
event ReserveUsedAsCollateralEnabled(
address indexed reserve,
address indexed user
);
/**
* @dev Emitted on setUserUseReserveAsCollateral()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user enabling the usage as collateral
**/
event ReserveUsedAsCollateralDisabled(
address indexed reserve,
address indexed user
);
/**
* @dev Emitted on rebalanceStableBorrowRate()
* @param reserve The address of the underlying asset of the reserve
* @param user The address of the user for which the rebalance has been executed
**/
event RebalanceStableBorrowRate(
address indexed reserve,
address indexed user
);
/**
* @dev Emitted on flashLoan()
* @param target The address of the flash loan receiver contract
* @param initiator The address initiating the flash loan
* @param asset The address of the asset being flash borrowed
* @param amount The amount flash borrowed
* @param premium The fee flash borrowed
* @param referralCode The referral code used
**/
event FlashLoan(
address indexed target,
address indexed initiator,
address indexed asset,
uint256 amount,
uint256 premium,
uint16 referralCode
);
/**
* @dev Emitted when the pause is triggered.
*/
event Paused();
/**
* @dev Emitted when the pause is lifted.
*/
event Unpaused();
/**
* @dev Emitted when a borrower is liquidated. This event is emitted by the LendingPool via
* LendingPoolCollateral manager using a DELEGATECALL
* This allows to have the events in the generated ABI for LendingPool.
* @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
* @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
* @param user The address of the borrower getting liquidated
* @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
* @param liquidatedCollateralAmount The amount of collateral received by the liiquidator
* @param liquidator The address of the liquidator
* @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants
* to receive the underlying collateral asset directly
**/
event LiquidationCall(
address indexed collateralAsset,
address indexed debtAsset,
address indexed user,
uint256 debtToCover,
uint256 liquidatedCollateralAmount,
address liquidator,
bool receiveAToken
);
/**
* @dev Emitted when the state of a reserve is updated. NOTE: This event is actually declared
* in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal,
* the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it
* gets added to the LendingPool ABI
* @param reserve The address of the underlying asset of the reserve
* @param liquidityRate The new liquidity rate
* @param stableBorrowRate The new stable borrow rate
* @param variableBorrowRate The new variable borrow rate
* @param liquidityIndex The new liquidity index
* @param variableBorrowIndex The new variable borrow index
**/
event ReserveDataUpdated(
address indexed reserve,
uint256 liquidityRate,
uint256 stableBorrowRate,
uint256 variableBorrowRate,
uint256 liquidityIndex,
uint256 variableBorrowIndex
);
/**
* @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
* - E.g. User deposits 100 USDC and gets in return 100 aUSDC
* @param asset The address of the underlying asset to deposit
* @param amount The amount to be deposited
* @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
* wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
* is a different wallet
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
**/
function deposit(
address asset,
uint256 amount,
address onBehalfOf,
uint16 referralCode
) external;
/**
* @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
* E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
* @param asset The address of the underlying asset to withdraw
* @param amount The underlying amount to be withdrawn
* - Send the value type(uint256).max in order to withdraw the whole aToken balance
* @param to Address that will receive the underlying, same as msg.sender if the user
* wants to receive it on his own wallet, or a different address if the beneficiary is a
* different wallet
**/
function withdraw(
address asset,
uint256 amount,
address to
) external;
/**
* @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
* already deposited enough collateral, or he was given enough allowance by a credit delegator on the
* corresponding debt token (StableDebtToken or VariableDebtToken)
* - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
* and 100 stable/variable debt tokens, depending on the `interestRateMode`
* @param asset The address of the underlying asset to borrow
* @param amount The amount to be borrowed
* @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
* @param onBehalfOf Address of the user who will receive the debt. Should be the address of the borrower itself
* calling the function if he wants to borrow against his own collateral, or the address of the credit delegator
* if he has been given credit delegation allowance
**/
function borrow(
address asset,
uint256 amount,
uint256 interestRateMode,
uint16 referralCode,
address onBehalfOf
) external;
/**
* @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
* - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address
* @param asset The address of the borrowed underlying asset previously borrowed
* @param amount The amount to repay
* - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
* @param rateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
* @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the
* user calling the function if he wants to reduce/remove his own debt, or the address of any other
* other borrower whose debt should be removed
**/
function repay(
address asset,
uint256 amount,
uint256 rateMode,
address onBehalfOf
) external;
/**
* @dev Allows a borrower to swap his debt between stable and variable mode, or viceversa
* @param asset The address of the underlying asset borrowed
* @param rateMode The rate mode that the user wants to swap to
**/
function swapBorrowRateMode(address asset, uint256 rateMode) external;
/**
* @dev Rebalances the stable interest rate of a user to the current stable rate defined on the reserve.
* - Users can be rebalanced if the following conditions are satisfied:
* 1. Usage ratio is above 95%
* 2. the current deposit APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too much has been
* borrowed at a stable rate and depositors are not earning enough
* @param asset The address of the underlying asset borrowed
* @param user The address of the user to be rebalanced
**/
function rebalanceStableBorrowRate(address asset, address user) external;
/**
* @dev Allows depositors to enable/disable a specific deposited asset as collateral
* @param asset The address of the underlying asset deposited
* @param useAsCollateral `true` if the user wants to use the deposit as collateral, `false` otherwise
**/
function setUserUseReserveAsCollateral(address asset, bool useAsCollateral)
external;
/**
* @dev Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1
* - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives
* a proportionally amount of the `collateralAsset` plus a bonus to cover market risk
* @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
* @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
* @param user The address of the borrower getting liquidated
* @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
* @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants
* to receive the underlying collateral asset directly
**/
function liquidationCall(
address collateralAsset,
address debtAsset,
address user,
uint256 debtToCover,
bool receiveAToken
) external;
/**
* @dev Allows smartcontracts to access the liquidity of the pool within one transaction,
* as long as the amount taken plus a fee is returned.
* IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration.
* For further details please visit https://developers.aave.com
* @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface
* @param assets The addresses of the assets being flash-borrowed
* @param amounts The amounts amounts being flash-borrowed
* @param modes Types of the debt to open if the flash loan is not returned:
* 0 -> Don't open any debt, just revert if funds can't be transferred from the receiver
* 1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
* 2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
* @param onBehalfOf The address that will receive the debt in the case of using on `modes` 1 or 2
* @param params Variadic packed params to pass to the receiver as extra information
* @param referralCode Code used to register the integrator originating the operation, for potential rewards.
* 0 if the action is executed directly by the user, without any middle-man
**/
function flashLoan(
address receiverAddress,
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata modes,
address onBehalfOf,
bytes calldata params,
uint16 referralCode
) external;
/**
* @dev Returns the user account data across all the reserves
* @param user The address of the user
* @return totalCollateralETH the total collateral in ETH of the user
* @return totalDebtETH the total debt in ETH of the user
* @return availableBorrowsETH the borrowing power left of the user
* @return currentLiquidationThreshold the liquidation threshold of the user
* @return ltv the loan to value of the user
* @return healthFactor the current health factor of the user
**/
function getUserAccountData(address user)
external
view
returns (
uint256 totalCollateralETH,
uint256 totalDebtETH,
uint256 availableBorrowsETH,
uint256 currentLiquidationThreshold,
uint256 ltv,
uint256 healthFactor
);
function initReserve(
address reserve,
address aTokenAddress,
address stableDebtAddress,
address variableDebtAddress,
address interestRateStrategyAddress
) external;
function setReserveInterestRateStrategyAddress(
address reserve,
address rateStrategyAddress
) external;
function setConfiguration(address reserve, uint256 configuration) external;
/**
* @dev Returns the configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The configuration of the reserve
**/
function getConfiguration(address asset)
external
view
returns (DataTypes.ReserveConfigurationMap memory);
/**
* @dev Returns the configuration of the user across all the reserves
* @param user The user address
* @return The configuration of the user
**/
function getUserConfiguration(address user)
external
view
returns (DataTypes.UserConfigurationMap memory);
/**
* @dev Returns the normalized income normalized income of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The reserve's normalized income
*/
function getReserveNormalizedIncome(address asset)
external
view
returns (uint256);
/**
* @dev Returns the normalized variable debt per unit of asset
* @param asset The address of the underlying asset of the reserve
* @return The reserve normalized variable debt
*/
function getReserveNormalizedVariableDebt(address asset)
external
view
returns (uint256);
/**
* @dev Returns the state and configuration of the reserve
* @param asset The address of the underlying asset of the reserve
* @return The state of the reserve
**/
function getReserveData(address asset)
external
view
returns (DataTypes.ReserveData memory);
function finalizeTransfer(
address asset,
address from,
address to,
uint256 amount,
uint256 balanceFromAfter,
uint256 balanceToBefore
) external;
function getReservesList() external view returns (address[] memory);
function getAddressesProvider()
external
view
returns (ILendingPoolAddressesProvider);
function setPause(bool val) external;
function paused() external view returns (bool);
}
pragma solidity 0.8.16;
abstract contract FlashLoanReceiverBase is IFlashLoanReceiver {
ILendingPoolAddressesProvider internal _addressesProvider;
ILendingPool internal _lendingPool;
constructor(ILendingPoolAddressesProvider provider) {
_addressesProvider = provider;
_lendingPool = ILendingPool(
ILendingPoolAddressesProvider(provider).getLendingPool()
);
}
receive() external payable {}
}
pragma solidity 0.8.16;
error NoProfit();
/*
* A contract that liquidates an aave loan using a flash loan:
*
* call executeFlashLoans() to begin the liquidation
*
*/
contract LiquidateLoan is FlashLoanReceiverBase, Ownable {
ILendingPoolAddressesProvider provider;
IUniswapV2Router02 uniswapV2Router;
address lendingPoolAddr;
event ErrorHandled(string stringFailure);
event profit_amount(uint256 prof);
event asset(address add);
event swapCollateral(address add);
event swapAsset(address add);
// intantiate lending pool addresses provider and get lending pool address
constructor(
ILendingPoolAddressesProvider _addressProvider,
IUniswapV2Router02 _uniswapV2Router
) FlashLoanReceiverBase(_addressProvider) {
provider = _addressProvider;
lendingPoolAddr = provider.getLendingPool();
// instantiate UniswapV2 Router02
uniswapV2Router = IUniswapV2Router02(address(_uniswapV2Router));
}
/**
This function is called after your contract has received the flash loaned amount
*/
function executeOperation(
address[] calldata assets,
uint256[] calldata amounts,
uint256[] calldata premiums,
address initiator,
bytes calldata params
) external override returns (bool) {
//collateral the address of the token that we will be compensated in
//userToLiquidate - id of the user to liquidate
//amountOutMin - minimum amount of asset paid when swapping collateral
(
address collateral,
address userToLiquidate,
uint256 amountOutMin,
address[] memory swapPath
) = abi.decode(params, (address, address, uint256, address[]));
emit swapCollateral(collateral);
//liquidate unhealthy loan
liquidateLoan(
collateral,
assets[0],
userToLiquidate,
amounts[0],
false
);
// require(amountOutMin == 0, "after liquidateLoan");
//swap collateral from liquidate back to asset from flashloan to pay it off
emit swapAsset(assets[0]);
// swap collateral to borrowed token to pay back the flash loan
if (collateral != assets[0]) {
swapToBarrowedAsset(collateral, assets[0], amountOutMin, swapPath);
}
//Pay to owner the balance after fees
//calculate profits after paying back loan & fees
uint256 profit = calcProfits(
IERC20(assets[0]).balanceOf(address(this)),
amounts[0],
premiums[0]
);
emit profit_amount(profit);
// emit asset((assets[0]));
if (profit <= 0) {
revert NoProfit();
}
// IERC20(assets[0]).transfer(owner(), profit);
uint256 owedAmount = amounts[0] + premiums[0];
// Approve the LendingPool contract allowance to *pull* the owed amount
// i.e. AAVE V2's way of repaying the flash loan
IERC20(assets[0]).approve(address(_lendingPool), owedAmount);
return true;
}
//calculate profits after paying back loan & fees
function calcProfits(
uint256 _balance,
uint256 _loanAmount,
uint256 _loanFee
) private pure returns (uint256) {
return _balance - (_loanAmount + (_loanFee));
}
// AAVE V2 liquidation function call
function liquidateLoan(
address _collateral,
address _liquidate_asset,
address _userToLiquidate,
uint256 _amount,
bool _receiveaToken
) private {
require(
IERC20(_liquidate_asset).approve(address(_lendingPool), _amount),
"Approval error"
);
_lendingPool.liquidationCall(
_collateral,
_liquidate_asset,
_userToLiquidate,
_amount,
_receiveaToken
);
}
//assumes the balance of the token is on the contract
function swapToBarrowedAsset(
address asset_from,
address asset_to,
uint256 amountOutMin,
address[] memory swapPath
) public {
IERC20 asset_fromToken;
uint256 amountToTrade;
uint256 deadline;
// setting deadline to avoid scenario where miners hang onto it and execute at a more profitable time
deadline = block.timestamp + 300; // 5 minutes
asset_fromToken = IERC20(asset_from);
amountToTrade = asset_fromToken.balanceOf(address(this));
// grant uniswap access to your token
asset_fromToken.approve(address(uniswapV2Router), amountToTrade);
// Trade 1: Execute swap from asset_from into designated ERC20 (asset_to) token on UniswapV2
try
uniswapV2Router.swapExactTokensForTokens(
amountToTrade,
amountOutMin,
swapPath,
address(this),
deadline
)
{} catch Error(string memory reason) {
emit ErrorHandled(reason);
} catch {}
}
/*
* This function is manually called to commence the flash loans sequence
* to make executing a liquidation flexible calculations are done outside of the contract and sent via parameters here
* _assetToLiquidate - the token address of the asset that will be liquidated
* _flashAmt - flash loan amount (number of tokens) which is exactly the amount that will be liquidated
* _collateral - the token address of the collateral. This is the token that will be received after liquidating loans
* _userToLiquidate - user ID of the loan that will be liquidated
* _amountOutMin - when using uniswap this is used to make sure the swap returns a minimum number of tokens, or will revert
* _swapPath - the path that uniswap will use to swap tokens back to original tokens
*/
function executeFlashLoans(
address _assetToLiquidate, // this is the borrowed token address
uint256 _flashAmt, // debt to cover
address _collateral, // collateral token address
address _userToLiquidate, // user address
uint256 _amountOutMin, // minimum token that we should get from an exchange
address[] memory _swapPath // path of the exchange, collateral token -> token 2 -> borrowed token
) public {
address receiverAddress = address(this);
// the various assets to be flashed
address[] memory assets = new address[](1);
assets[0] = _assetToLiquidate;
// the amount to be flashed for each asset
uint256[] memory amounts = new uint256[](1);
amounts[0] = _flashAmt;
// 0 = no debt, 1 = stable, 2 = variable
uint256[] memory modes = new uint256[](1);
modes[0] = 0;
address onBehalfOf = address(this);
//only for testing. must remove
// passing these params to executeOperation so that they can be used to liquidate the loan and perform the swap
bytes memory params = abi.encode(
_collateral,
_userToLiquidate,
_amountOutMin,
_swapPath
);
// bytes memory params = "";
uint16 referralCode = 0;
_lendingPool.flashLoan(
receiverAddress,
assets,
amounts,
modes,
onBehalfOf,
params,
referralCode
);
}
function withdraw(address _token) public {
if (_token == address(0)) {
payable(owner()).transfer(address(this).balance);
} else {
IERC20(_token).transfer(
owner(),
IERC20(_token).balanceOf(address(this))
);
}
}
} | [{"inputs":[{"internalType":"contract ILendingPoolAddressesProvider","name":"_addressProvider","type":"address"},{"internalType":"contract IUniswapV2Router02","name":"_uniswapV2Router","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"NoProfit","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"stringFailure","type":"string"}],"name":"ErrorHandled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"add","type":"address"}],"name":"asset","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"prof","type":"uint256"}],"name":"profit_amount","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"add","type":"address"}],"name":"swapAsset","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"add","type":"address"}],"name":"swapCollateral","type":"event"},{"inputs":[{"internalType":"address","name":"_assetToLiquidate","type":"address"},{"internalType":"uint256","name":"_flashAmt","type":"uint256"},{"internalType":"address","name":"_collateral","type":"address"},{"internalType":"address","name":"_userToLiquidate","type":"address"},{"internalType":"uint256","name":"_amountOutMin","type":"uint256"},{"internalType":"address[]","name":"_swapPath","type":"address[]"}],"name":"executeFlashLoans","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"assets","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"uint256[]","name":"premiums","type":"uint256[]"},{"internalType":"address","name":"initiator","type":"address"},{"internalType":"bytes","name":"params","type":"bytes"}],"name":"executeOperation","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"asset_from","type":"address"},{"internalType":"address","name":"asset_to","type":"address"},{"internalType":"uint256","name":"amountOutMin","type":"uint256"},{"internalType":"address[]","name":"swapPath","type":"address[]"}],"name":"swapToBarrowedAsset","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.16+commit.07a7930e | true | 800 | 000000000000000000000000b53c1a33016b2dc2ff3653530bff1848a515c8c50000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d | Default | MIT | false | ipfs://593f303e8627a72788bb1aebbbd5960dc05291d8a2ef0726a5563bc7a818ee90 | ||
GnosisSafeProxy | 0x6218f3a4defa8699f39e1fe6077766315a2adc47 | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
CollectionContract | 0xb4c01d963dd48ec4a7aae4740fa8ef7930cd0453 | Solidity | // File: contracts/CollectionContract.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./interfaces/ICollectionContractInitializer.sol";
import "./interfaces/ICollectionFactory.sol";
import "./interfaces/IGetRoyalties.sol";
import "./interfaces/IProxyCall.sol";
import "./interfaces/ITokenCreator.sol";
import "./interfaces/ITokenCreatorPaymentAddress.sol";
import "./interfaces/IGetFees.sol";
import "./libraries/AccountMigrationLibrary.sol";
import "./libraries/ProxyCall.sol";
import "./libraries/BytesLibrary.sol";
import "./interfaces/IRoyaltyInfo.sol";
/**
* @title A collection of NFTs.
* @notice All NFTs from this contract are minted by the same creator.
* A 10% royalty to the creator is included which may be split with collaborators.
*/
contract CollectionContract is
ICollectionContractInitializer,
IGetRoyalties,
IGetFees,
IRoyaltyInfo,
ITokenCreator,
ITokenCreatorPaymentAddress,
ERC721BurnableUpgradeable
{
using AccountMigrationLibrary for address;
using AddressUpgradeable for address;
using BytesLibrary for bytes;
using ProxyCall for IProxyCall;
uint256 private constant ROYALTY_IN_BASIS_POINTS = 1000;
uint256 private constant ROYALTY_RATIO = 10;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @dev Stores hashes minted to prevent duplicates.
*/
mapping(string => bool) private cidToMinted;
/**
* @notice The factory which was used to create this collection.
* @dev This is used to read common config.
*/
ICollectionFactory public immutable collectionFactory;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
*/
uint256 public latestTokenId;
/**
* @notice The max tokenId which can be minted, or 0 if there's no limit.
* @dev This value may be set at any time, but once set it cannot be increased.
*/
uint256 public maxTokenId;
/**
* @notice The owner/creator of this NFT collection.
*/
address payable public owner;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Tracks how many tokens have been burned, used to calc the total supply efficiently.
*/
uint256 private burnCounter;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
event BaseURIUpdated(string baseURI);
event CreatorMigrated(address indexed originalAddress, address indexed newAddress);
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
event NFTOwnerMigrated(uint256 indexed tokenId, address indexed originalAddress, address indexed newAddress);
event PaymentAddressMigrated(
uint256 indexed tokenId,
address indexed originalAddress,
address indexed newAddress,
address originalPaymentAddress,
address newPaymentAddress
);
event SelfDestruct(address indexed owner);
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
modifier onlyOwner() {
require(msg.sender == owner, "CollectionContract: Caller is not owner");
_;
}
modifier onlyOperator() {
require(collectionFactory.rolesContract().isOperator(msg.sender), "CollectionContract: Caller is not an operator");
_;
}
/**
* @dev The constructor for a proxy can only be used to assign immutable variables.
*/
constructor(address _collectionFactory) {
require(_collectionFactory.isContract(), "CollectionContract: collectionFactory is not a contract");
collectionFactory = ICollectionFactory(_collectionFactory);
}
/**
* @notice Called by the factory on creation.
* @dev This may only be called once.
*/
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external initializer {
require(msg.sender == address(collectionFactory), "CollectionContract: Collection must be created via the factory");
__ERC721_init_unchained(_name, _symbol);
owner = _creator;
}
/**
* @notice Allows the owner to mint an NFT defined by its metadata path.
*/
function mint(string memory tokenCID) public returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Allows the owner to mint and sets approval for all for the provided operator.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintAndApprove(string memory tokenCID, address operator) public returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address.
*/
function mintWithCreatorPaymentAddress(string memory tokenCID, address payable tokenCreatorPaymentAddress)
public
returns (uint256 tokenId)
{
require(tokenCreatorPaymentAddress != address(0), "CollectionContract: tokenCreatorPaymentAddress is required");
tokenId = mint(tokenCID);
_setTokenCreatorPaymentAddress(tokenId, tokenCreatorPaymentAddress);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address.
* Also sets approval for all for the provided operator.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintWithCreatorPaymentAddressAndApprove(
string memory tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) public returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCallData The call details to sent to the factory provided.
*/
function mintWithCreatorPaymentFactory(
string memory tokenCID,
address paymentAddressFactory,
bytes memory paymentAddressCallData
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = collectionFactory
.proxyCallContract()
.proxyCallAndReturnContractAddress(paymentAddressFactory, paymentAddressCallData);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* Also sets approval for all for the provided operator.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCallData The call details to sent to the factory provided.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string memory tokenCID,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
address operator
) public returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCallData);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
*/
function updateMaxTokenId(uint256 _maxTokenId) external onlyOwner {
require(_maxTokenId > 0, "CollectionContract: Max token ID may not be cleared");
require(maxTokenId == 0 || _maxTokenId < maxTokenId, "CollectionContract: Max token ID may not increase");
require(latestTokenId + 1 <= _maxTokenId, "CollectionContract: Max token ID must be greater than last mint");
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the creator to burn if they currently own the NFT.
*/
function burn(uint256 tokenId) public override onlyOwner {
super.burn(tokenId);
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet.
*/
function selfDestruct() external onlyOwner {
require(totalSupply() == 0, "CollectionContract: Any NFTs minted must be burned first");
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
/**
* @notice Allows an NFT owner or creator and Foundation to work together in order to update the creator
* to a new account and/or transfer NFTs to that account.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
* @dev This will gracefully skip any NFTs that have been burned or transferred.
*/
function adminAccountMigration(
uint256[] calldata ownedTokenIds,
address originalAddress,
address payable newAddress,
bytes calldata signature
) public onlyOperator {
originalAddress.requireAuthorizedAccountMigration(newAddress, signature);
for (uint256 i = 0; i < ownedTokenIds.length; i++) {
uint256 tokenId = ownedTokenIds[i];
// Check that the token exists and still is owned by the originalAddress
// so that frontrunning a burn or transfer will not cause the entire tx to revert
if (_exists(tokenId) && ownerOf(tokenId) == originalAddress) {
_transfer(originalAddress, newAddress, tokenId);
emit NFTOwnerMigrated(tokenId, originalAddress, newAddress);
}
}
if (owner == originalAddress) {
owner = newAddress;
emit CreatorMigrated(originalAddress, newAddress);
}
}
/**
* @notice Allows a split recipient and Foundation to work together in order to update the payment address
* to a new account.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
*/
function adminAccountMigrationForPaymentAddresses(
uint256[] calldata paymentAddressTokenIds,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
uint256 addressLocationInCallData,
address originalAddress,
address payable newAddress,
bytes calldata signature
) public onlyOperator {
originalAddress.requireAuthorizedAccountMigration(newAddress, signature);
_adminAccountRecoveryForPaymentAddresses(
paymentAddressTokenIds,
paymentAddressFactory,
paymentAddressCallData,
addressLocationInCallData,
originalAddress,
newAddress
);
}
function baseURI() external view returns (string memory) {
return _baseURI();
}
/**
* @notice Returns an array of recipient addresses to which royalties for secondary sales should be sent.
* The expected royalty amount is communicated with `getFeeBps`.
*/
function getFeeRecipients(uint256 id) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(id);
}
/**
* @notice Returns an array of royalties to be sent for secondary sales in basis points.
* The expected recipients is communicated with `getFeeRecipients`.
*/
function getFeeBps(
uint256 /* id */
) external pure returns (uint256[] memory feesInBasisPoints) {
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
*/
function getHasMintedCID(string memory tokenCID) public view returns (bool) {
return cidToMinted[tokenCID];
}
/**
* @notice Returns an array of royalties to be sent for secondary sales.
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints)
{
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Returns the receiver and the amount to be sent for a secondary sale.
*/
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount)
{
receiver = getTokenCreatorPaymentAddress(_tokenId);
unchecked {
royaltyAmount = _salePrice / ROYALTY_RATIO;
}
}
/**
* @notice Returns the creator for an NFT, which is always the collection owner.
*/
function tokenCreator(
uint256 /* tokenId */
) external view returns (address payable) {
return owner;
}
/**
* @notice Returns the desired payment address to be used for any transfers to the creator.
* @dev The payment address may be assigned for each individual NFT, if not defined the collection owner is returned.
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
returns (address payable tokenCreatorPaymentAddress)
{
tokenCreatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (tokenCreatorPaymentAddress == address(0)) {
tokenCreatorPaymentAddress = owner;
}
}
/**
* @notice Count of NFTs tracked by this contract.
* @dev From the ERC-721 enumerable standard.
*/
function totalSupply() public view returns (uint256) {
unchecked {
return latestTokenId - burnCounter;
}
}
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
if (
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(ITokenCreatorPaymentAddress).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
interfaceId == type(IRoyaltyInfo).interfaceId
) {
return true;
}
return super.supportsInterface(interfaceId);
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "CollectionContract: URI query for nonexistent token");
return string(abi.encodePacked(_baseURI(), _tokenCIDs[tokenId]));
}
function _mint(string memory tokenCID) private onlyOwner returns (uint256 tokenId) {
require(bytes(tokenCID).length > 0, "CollectionContract: tokenCID is required");
require(!cidToMinted[tokenCID], "CollectionContract: NFT was already minted");
unchecked {
tokenId = ++latestTokenId;
require(maxTokenId == 0 || tokenId <= maxTokenId, "CollectionContract: Max token count has already been minted");
cidToMinted[tokenCID] = true;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId, "");
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
}
/**
* @dev Allow setting a different address to send payments to for both primary sale revenue
* and secondary sales royalties.
*/
function _setTokenCreatorPaymentAddress(uint256 tokenId, address payable tokenCreatorPaymentAddress) internal {
emit TokenCreatorPaymentAddressSet(tokenIdToCreatorPaymentAddress[tokenId], tokenCreatorPaymentAddress, tokenId);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
}
function _burn(uint256 tokenId) internal override {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
unchecked {
burnCounter++;
}
super._burn(tokenId);
}
/**
* @dev Split into a second function to avoid stack too deep errors
*/
function _adminAccountRecoveryForPaymentAddresses(
uint256[] calldata paymentAddressTokenIds,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
uint256 addressLocationInCallData,
address originalAddress,
address payable newAddress
) private {
// Call the factory and get the originalPaymentAddress
address payable originalPaymentAddress = collectionFactory.proxyCallContract().proxyCallAndReturnContractAddress(
paymentAddressFactory,
paymentAddressCallData
);
// Confirm the original address and swap with the new address
paymentAddressCallData.replaceAtIf(addressLocationInCallData, originalAddress, newAddress);
// Call the factory and get the newPaymentAddress
address payable newPaymentAddress = collectionFactory.proxyCallContract().proxyCallAndReturnContractAddress(
paymentAddressFactory,
paymentAddressCallData
);
// For each token, confirm the expected payment address and then update to the new one
for (uint256 i = 0; i < paymentAddressTokenIds.length; i++) {
uint256 tokenId = paymentAddressTokenIds[i];
require(
tokenIdToCreatorPaymentAddress[tokenId] == originalPaymentAddress,
"CollectionContract: Payment address is not the expected value"
);
_setTokenCreatorPaymentAddress(tokenId, newPaymentAddress);
emit PaymentAddressMigrated(tokenId, originalAddress, newAddress, originalPaymentAddress, newPaymentAddress);
}
}
function _baseURI() internal view override returns (string memory) {
if (bytes(baseURI_).length > 0) {
return baseURI_;
}
return "ipfs://";
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be irreversibly burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721Burnable_init_unchained();
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
_burn(tokenId);
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: contracts/interfaces/ICollectionContractInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ICollectionContractInitializer {
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external;
}
// File: contracts/interfaces/ICollectionFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "./IRoles.sol";
import "./IProxyCall.sol";
interface ICollectionFactory {
function rolesContract() external returns (IRoles);
function proxyCallContract() external returns (IProxyCall);
}
// File: contracts/interfaces/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface IGetRoyalties {
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints);
}
// File: contracts/interfaces/IProxyCall.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface IProxyCall {
function proxyCallAndReturnAddress(address externalContract, bytes calldata callData)
external
returns (address payable result);
}
// File: contracts/interfaces/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ITokenCreator {
function tokenCreator(uint256 tokenId) external view returns (address payable);
}
// File: contracts/interfaces/ITokenCreatorPaymentAddress.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ITokenCreatorPaymentAddress {
function getTokenCreatorPaymentAddress(uint256 tokenId)
external
view
returns (address payable tokenCreatorPaymentAddress);
}
// File: contracts/interfaces/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
function getFeeRecipients(uint256 id) external view returns (address payable[] memory);
function getFeeBps(uint256 id) external view returns (uint256[] memory);
}
// File: contracts/libraries/AccountMigrationLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
/**
* @notice Checks for a valid signature authorizing the migration of an account to a new address.
* @dev This is shared by both the NFT contracts and FNDNFTMarket, and the same signature authorizes both.
*/
library AccountMigrationLibrary {
using ECDSA for bytes;
using SignatureChecker for address;
using Strings for uint256;
// From https://ethereum.stackexchange.com/questions/8346/convert-address-to-string
function _toAsciiString(address x) private pure returns (string memory) {
bytes memory s = new bytes(42);
s[0] = "0";
s[1] = "x";
for (uint256 i = 0; i < 20; i++) {
bytes1 b = bytes1(uint8(uint256(uint160(x)) / (2**(8 * (19 - i)))));
bytes1 hi = bytes1(uint8(b) / 16);
bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi));
s[2 * i + 2] = _char(hi);
s[2 * i + 3] = _char(lo);
}
return string(s);
}
function _char(bytes1 b) private pure returns (bytes1 c) {
if (uint8(b) < 10) return bytes1(uint8(b) + 0x30);
else return bytes1(uint8(b) + 0x57);
}
/**
* @dev Confirms the msg.sender is a Foundation operator and that the signature provided is valid.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
*/
function requireAuthorizedAccountMigration(
address originalAddress,
address newAddress,
bytes memory signature
) internal view {
require(originalAddress != newAddress, "AccountMigration: Cannot migrate to the same account");
bytes32 hash = abi
.encodePacked("I authorize Foundation to migrate my account to ", _toAsciiString(newAddress))
.toEthSignedMessageHash();
require(
originalAddress.isValidSignatureNow(hash, signature),
"AccountMigration: Signature must be from the original account"
);
}
}
// File: contracts/libraries/ProxyCall.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "../interfaces/IProxyCall.sol";
/**
* @notice Forwards arbitrary calls to an external contract to be processed.
* @dev This is used so that the from address of the calling contract does not have
* any special permissions (e.g. ERC-20 transfer).
*/
library ProxyCall {
using AddressUpgradeable for address payable;
/**
* @dev Used by other mixins to make external calls through the proxy contract.
* This will fail if the proxyCall address is address(0).
*/
function proxyCallAndReturnContractAddress(
IProxyCall proxyCall,
address externalContract,
bytes memory callData
) internal returns (address payable result) {
result = proxyCall.proxyCallAndReturnAddress(externalContract, callData);
require(result.isContract(), "ProxyCall: address returned is not a contract");
}
}
// File: contracts/libraries/BytesLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice A library for manipulation of byte arrays.
*/
library BytesLibrary {
/**
* @dev Replace the address at the given location in a byte array if the contents at that location
* match the expected address.
*/
function replaceAtIf(
bytes memory data,
uint256 startLocation,
address expectedAddress,
address newAddress
) internal pure {
bytes memory expectedData = abi.encodePacked(expectedAddress);
bytes memory newData = abi.encodePacked(newAddress);
// An address is 20 bytes long
for (uint256 i = 0; i < 20; i++) {
uint256 dataLocation = startLocation + i;
require(data[dataLocation] == expectedData[i], "Bytes: Data provided does not include the expectedAddress");
data[dataLocation] = newData[i];
}
}
/**
* @dev Checks if the call data starts with the given function signature.
*/
function startsWith(bytes memory callData, bytes4 functionSig) internal pure returns (bool) {
// A signature is 4 bytes long
if (callData.length < 4) {
return false;
}
for (uint256 i = 0; i < 4; i++) {
if (callData[i] != functionSig[i]) {
return false;
}
}
return true;
}
}
// File: contracts/interfaces/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/// @notice Called with the sale price to determine how much royalty
// is owed and to whom.
/// @param _tokenId - the NFT asset queried for royalty information
/// @param _salePrice - the sale price of the NFT asset specified by _tokenId
/// @return receiver - address of who should be sent the royalty payment
/// @return royaltyAmount - the royalty payment amount for _salePrice
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits a {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
__Context_init_unchained();
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/utils/Initializable.sol)
pragma solidity ^0.8.0;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
* initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() initializer {}
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Modifier to protect an initializer function from being invoked twice.
*/
modifier initializer() {
// If the contract is initializing we ignore whether _initialized is set in order to support multiple
// inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
// contract may have been reentered.
require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
}
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} modifier, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
function _isConstructor() private view returns (bool) {
return !AddressUpgradeable.isContract(address(this));
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
__ERC165_init_unchained();
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/interfaces/IRoles.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice Interface for a contract which implements admin roles.
*/
interface IRoles {
function isAdmin(address account) external view returns (bool);
function isOperator(address account) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/cryptography/ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.0;
import "../Strings.sol";
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return; // no error: do nothing
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
} else if (error == RecoverError.InvalidSignatureV) {
revert("ECDSA: invalid signature 'v' value");
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature` or error string. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*
* Documentation for signature generation:
* - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
* - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
*
* _Available since v4.3._
*/
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
// Check the signature length
// - case 65: r,s,v signature (standard)
// - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else if (signature.length == 64) {
bytes32 r;
bytes32 vs;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
vs := mload(add(signature, 0x40))
}
return tryRecover(hash, r, vs);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
*
* See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address, RecoverError) {
bytes32 s;
uint8 v;
assembly {
s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
v := add(shr(255, vs), 27)
}
return tryRecover(hash, v, r, s);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
*
* _Available since v4.2._
*/
function recover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `v`,
* `r` and `s` signature fields separately.
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
if (v != 27 && v != 28) {
return (address(0), RecoverError.InvalidSignatureV);
}
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
/**
* @dev Returns an Ethereum Signed Message, created from a `hash`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
// 32 is the length in bytes of hash,
// enforced by the type signature above
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
/**
* @dev Returns an Ethereum Signed Message, created from `s`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
/**
* @dev Returns an Ethereum Signed Typed Data, created from a
* `domainSeparator` and a `structHash`. This produces hash corresponding
* to the one signed with the
* https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
* JSON-RPC method as part of EIP-712.
*
* See {recover}.
*/
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
}
}
// File: @openzeppelin/contracts/utils/cryptography/SignatureChecker.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/SignatureChecker.sol)
pragma solidity ^0.8.0;
import "./ECDSA.sol";
import "../Address.sol";
import "../../interfaces/IERC1271.sol";
/**
* @dev Signature verification helper: Provide a single mechanism to verify both private-key (EOA) ECDSA signature and
* ERC1271 contract signatures. Using this instead of ECDSA.recover in your contract will make them compatible with
* smart contract wallets such as Argent and Gnosis.
*
* Note: unlike ECDSA signatures, contract signature's are revocable, and the outcome of this function can thus change
* through time. It could return true at block N and false at block N+1 (or the opposite).
*
* _Available since v4.1._
*/
library SignatureChecker {
function isValidSignatureNow(
address signer,
bytes32 hash,
bytes memory signature
) internal view returns (bool) {
(address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);
if (error == ECDSA.RecoverError.NoError && recovered == signer) {
return true;
}
(bool success, bytes memory result) = signer.staticcall(
abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
);
return (success && result.length == 32 && abi.decode(result, (bytes4)) == IERC1271.isValidSignature.selector);
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/interfaces/IERC1271.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC1271 standard signature validation method for
* contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
*
* _Available since v4.1._
*/
interface IERC1271 {
/**
* @dev Should return whether the signature provided is valid for the provided data
* @param hash Hash of the data to be signed
* @param signature Signature byte array associated with _data
*/
function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}
| [{"inputs":[{"internalType":"address","name":"_collectionFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"baseURI","type":"string"}],"name":"BaseURIUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"originalAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"CreatorMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"maxTokenId","type":"uint256"}],"name":"MaxTokenIdUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"creator","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"string","name":"indexedTokenCID","type":"string"},{"indexed":false,"internalType":"string","name":"tokenCID","type":"string"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"originalAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"NFTOwnerMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"originalAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"},{"indexed":false,"internalType":"address","name":"originalPaymentAddress","type":"address"},{"indexed":false,"internalType":"address","name":"newPaymentAddress","type":"address"}],"name":"PaymentAddressMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"}],"name":"SelfDestruct","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"fromPaymentAddress","type":"address"},{"indexed":true,"internalType":"address","name":"toPaymentAddress","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenCreatorPaymentAddressSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"uint256[]","name":"ownedTokenIds","type":"uint256[]"},{"internalType":"address","name":"originalAddress","type":"address"},{"internalType":"address payable","name":"newAddress","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"adminAccountMigration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"paymentAddressTokenIds","type":"uint256[]"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCallData","type":"bytes"},{"internalType":"uint256","name":"addressLocationInCallData","type":"uint256"},{"internalType":"address","name":"originalAddress","type":"address"},{"internalType":"address payable","name":"newAddress","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"adminAccountMigrationForPaymentAddresses","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"collectionFactory","outputs":[{"internalType":"contract ICollectionFactory","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"feesInBasisPoints","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"getHasMintedCID","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getRoyalties","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"feesInBasisPoints","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenCreatorPaymentAddress","outputs":[{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"_creator","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"}],"name":"mintWithCreatorPaymentAddress","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintWithCreatorPaymentAddressAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCallData","type":"bytes"}],"name":"mintWithCreatorPaymentFactory","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCallData","type":"bytes"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintWithCreatorPaymentFactoryAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"selfDestruct","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenCreator","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURIOverride","type":"string"}],"name":"updateBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxTokenId","type":"uint256"}],"name":"updateMaxTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.11+commit.d7f03943 | true | 1,337 | 0000000000000000000000003b612a5b49e025a6e4ba4ee4fb1ef46d13588059 | Default | false | ||||
BErc20 | 0x8c4f8f1d867f77251c1a1d470930d5f8e310e8f1 | Solidity | /*
B.PROTOCOL TERMS OF USE
=======================
THE TERMS OF USE CONTAINED HEREIN (THESE “TERMS”) GOVERN YOUR USE OF B.PROTOCOL, WHICH IS A DECENTRALIZED PROTOCOL ON THE ETHEREUM BLOCKCHAIN (the “PROTOCOL”) THAT enables a backstop liquidity mechanism FOR DECENTRALIZED LENDING PLATFORMS (“DLPs”).
PLEASE READ THESE TERMS CAREFULLY AT https://github.com/backstop-protocol/Terms-and-Conditions, INCLUDING ALL DISCLAIMERS AND RISK FACTORS, BEFORE USING THE PROTOCOL. BY USING THE PROTOCOL, YOU ARE IRREVOCABLY CONSENTING TO BE BOUND BY THESE TERMS.
IF YOU DO NOT AGREE TO ALL OF THESE TERMS, DO NOT USE THE PROTOCOL. YOUR RIGHT TO USE THE PROTOCOL IS SUBJECT AND DEPENDENT BY YOUR AGREEMENT TO ALL TERMS AND CONDITIONS SET FORTH HEREIN, WHICH AGREEMENT SHALL BE EVIDENCED BY YOUR USE OF THE PROTOCOL.
Minors Prohibited: The Protocol is not directed to individuals under the age of eighteen (18) or the age of majority in your jurisdiction if the age of majority is greater. If you are under the age of eighteen or the age of majority (if greater), you are not authorized to access or use the Protocol. By using the Protocol, you represent and warrant that you are above such age.
License; No Warranties; Limitation of Liability;
(a) The software underlying the Protocol is licensed for use in accordance with the 3-clause BSD License, which can be accessed here: https://opensource.org/licenses/BSD-3-Clause.
(b) THE PROTOCOL IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS", “WITH ALL FAULTS” and “AS AVAILABLE” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
(c) IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// File: contracts/bprotocol/interfaces/IRegistry.sol
pragma solidity 0.5.16;
interface IRegistry {
// Ownable
function transferOwnership(address newOwner) external;
// Compound contracts
function comp() external view returns (address);
function comptroller() external view returns (address);
function cEther() external view returns (address);
// B.Protocol contracts
function bComptroller() external view returns (address);
function score() external view returns (address);
function pool() external view returns (address);
// Avatar functions
function delegate(address avatar, address delegatee) external view returns (bool);
function doesAvatarExist(address avatar) external view returns (bool);
function doesAvatarExistFor(address owner) external view returns (bool);
function ownerOf(address avatar) external view returns (address);
function avatarOf(address owner) external view returns (address);
function newAvatar() external returns (address);
function getAvatar(address owner) external returns (address);
// avatar whitelisted calls
function whitelistedAvatarCalls(address target, bytes4 functionSig) external view returns(bool);
function setPool(address newPool) external;
function setWhitelistAvatarCall(address target, bytes4 functionSig, bool list) external;
}
// File: contracts/bprotocol/interfaces/IAvatar.sol
pragma solidity 0.5.16;
contract IAvatarERC20 {
function transfer(address cToken, address dst, uint256 amount) external returns (bool);
function transferFrom(address cToken, address src, address dst, uint256 amount) external returns (bool);
function approve(address cToken, address spender, uint256 amount) public returns (bool);
}
contract IAvatar is IAvatarERC20 {
function initialize(address _registry, address comp, address compVoter) external;
function quit() external returns (bool);
function canUntop() public returns (bool);
function toppedUpCToken() external returns (address);
function toppedUpAmount() external returns (uint256);
function redeem(address cToken, uint256 redeemTokens, address payable userOrDelegatee) external returns (uint256);
function redeemUnderlying(address cToken, uint256 redeemAmount, address payable userOrDelegatee) external returns (uint256);
function borrow(address cToken, uint256 borrowAmount, address payable userOrDelegatee) external returns (uint256);
function borrowBalanceCurrent(address cToken) external returns (uint256);
function collectCToken(address cToken, address from, uint256 cTokenAmt) public;
function liquidateBorrow(uint repayAmount, address cTokenCollateral) external payable returns (uint256);
// Comptroller functions
function enterMarket(address cToken) external returns (uint256);
function enterMarkets(address[] calldata cTokens) external returns (uint256[] memory);
function exitMarket(address cToken) external returns (uint256);
function claimComp() external;
function claimComp(address[] calldata bTokens) external;
function claimComp(address[] calldata bTokens, bool borrowers, bool suppliers) external;
function getAccountLiquidity() external view returns (uint err, uint liquidity, uint shortFall);
}
// Workaround for issue https://github.com/ethereum/solidity/issues/526
// CEther
contract IAvatarCEther is IAvatar {
function mint() external payable;
function repayBorrow() external payable;
function repayBorrowBehalf(address borrower) external payable;
}
// CErc20
contract IAvatarCErc20 is IAvatar {
function mint(address cToken, uint256 mintAmount) external returns (uint256);
function repayBorrow(address cToken, uint256 repayAmount) external returns (uint256);
function repayBorrowBehalf(address cToken, address borrower, uint256 repayAmount) external returns (uint256);
}
contract ICushion {
function liquidateBorrow(uint256 underlyingAmtToLiquidate, uint256 amtToDeductFromTopup, address cTokenCollateral) external payable returns (uint256);
function canLiquidate() external returns (bool);
function untop(uint amount) external;
function toppedUpAmount() external returns (uint);
function remainingLiquidationAmount() external returns(uint);
function getMaxLiquidationAmount(address debtCToken) public returns (uint256);
}
contract ICushionCErc20 is ICushion {
function topup(address cToken, uint256 topupAmount) external;
}
contract ICushionCEther is ICushion {
function topup() external payable;
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
pragma solidity ^0.5.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: contracts/bprotocol/interfaces/CTokenInterfaces.sol
pragma solidity 0.5.16;
contract CTokenInterface {
/* ERC20 */
function transfer(address dst, uint amount) external returns (bool);
function transferFrom(address src, address dst, uint amount) external returns (bool);
function approve(address spender, uint amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function totalSupply() external view returns (uint256);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
/* User Interface */
function isCToken() external view returns (bool);
function underlying() external view returns (IERC20);
function balanceOfUnderlying(address owner) external returns (uint);
function getAccountSnapshot(address account) external view returns (uint, uint, uint, uint);
function borrowRatePerBlock() external view returns (uint);
function supplyRatePerBlock() external view returns (uint);
function totalBorrowsCurrent() external returns (uint);
function borrowBalanceCurrent(address account) external returns (uint);
function borrowBalanceStored(address account) public view returns (uint);
function exchangeRateCurrent() public returns (uint);
function exchangeRateStored() public view returns (uint);
function getCash() external view returns (uint);
function accrueInterest() public returns (uint);
function seize(address liquidator, address borrower, uint seizeTokens) external returns (uint);
}
contract ICToken is CTokenInterface {
/* User Interface */
function redeem(uint redeemTokens) external returns (uint);
function redeemUnderlying(uint redeemAmount) external returns (uint);
function borrow(uint borrowAmount) external returns (uint);
}
// Workaround for issue https://github.com/ethereum/solidity/issues/526
// Defined separate contract as `mint()` override with `.value()` has issues
contract ICErc20 is ICToken {
function mint(uint mintAmount) external returns (uint);
function repayBorrow(uint repayAmount) external returns (uint);
function repayBorrowBehalf(address borrower, uint repayAmount) external returns (uint);
function liquidateBorrow(address borrower, uint repayAmount, address cTokenCollateral) external returns (uint);
}
contract ICEther is ICToken {
function mint() external payable;
function repayBorrow() external payable;
function repayBorrowBehalf(address borrower) external payable;
function liquidateBorrow(address borrower, address cTokenCollateral) external payable;
}
contract IPriceOracle {
/**
* @notice Get the underlying price of a cToken asset
* @param cToken The cToken to get the underlying price of
* @return The underlying asset price mantissa (scaled by 1e18).
* Zero means the price is unavailable.
*/
function getUnderlyingPrice(CTokenInterface cToken) external view returns (uint);
}
// File: contracts/bprotocol/lib/CarefulMath.sol
pragma solidity 0.5.16;
/**
* @title Careful Math
* @author Compound
* @notice COPY TAKEN FROM COMPOUND FINANCE
* @notice Derived from OpenZeppelin's SafeMath library
* https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/math/SafeMath.sol
*/
contract CarefulMath {
/**
* @dev Possible error codes that we can return
*/
enum MathError {
NO_ERROR,
DIVISION_BY_ZERO,
INTEGER_OVERFLOW,
INTEGER_UNDERFLOW
}
/**
* @dev Multiplies two numbers, returns an error on overflow.
*/
function mulUInt(uint a, uint b) internal pure returns (MathError, uint) {
if (a == 0) {
return (MathError.NO_ERROR, 0);
}
uint c = a * b;
if (c / a != b) {
return (MathError.INTEGER_OVERFLOW, 0);
} else {
return (MathError.NO_ERROR, c);
}
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
function divUInt(uint a, uint b) internal pure returns (MathError, uint) {
if (b == 0) {
return (MathError.DIVISION_BY_ZERO, 0);
}
return (MathError.NO_ERROR, a / b);
}
/**
* @dev Subtracts two numbers, returns an error on overflow (i.e. if subtrahend is greater than minuend).
*/
function subUInt(uint a, uint b) internal pure returns (MathError, uint) {
if (b <= a) {
return (MathError.NO_ERROR, a - b);
} else {
return (MathError.INTEGER_UNDERFLOW, 0);
}
}
/**
* @dev Adds two numbers, returns an error on overflow.
*/
function addUInt(uint a, uint b) internal pure returns (MathError, uint) {
uint c = a + b;
if (c >= a) {
return (MathError.NO_ERROR, c);
} else {
return (MathError.INTEGER_OVERFLOW, 0);
}
}
/**
* @dev add a and b and then subtract c
*/
function addThenSubUInt(uint a, uint b, uint c) internal pure returns (MathError, uint) {
(MathError err0, uint sum) = addUInt(a, b);
if (err0 != MathError.NO_ERROR) {
return (err0, 0);
}
return subUInt(sum, c);
}
}
// File: contracts/bprotocol/lib/Exponential.sol
pragma solidity 0.5.16;
/**
* @title Exponential module for storing fixed-precision decimals
* @author Compound
* @notice Exp is a struct which stores decimals with a fixed precision of 18 decimal places.
* Thus, if we wanted to store the 5.1, mantissa would store 5.1e18. That is:
* `Exp({mantissa: 5100000000000000000})`.
*/
contract Exponential is CarefulMath {
uint constant expScale = 1e18;
uint constant doubleScale = 1e36;
uint constant halfExpScale = expScale/2;
uint constant mantissaOne = expScale;
struct Exp {
uint mantissa;
}
struct Double {
uint mantissa;
}
/**
* @dev Creates an exponential from numerator and denominator values.
* Note: Returns an error if (`num` * 10e18) > MAX_INT,
* or if `denom` is zero.
*/
function getExp(uint num, uint denom) pure internal returns (MathError, Exp memory) {
(MathError err0, uint scaledNumerator) = mulUInt(num, expScale);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({mantissa: 0}));
}
(MathError err1, uint rational) = divUInt(scaledNumerator, denom);
if (err1 != MathError.NO_ERROR) {
return (err1, Exp({mantissa: 0}));
}
return (MathError.NO_ERROR, Exp({mantissa: rational}));
}
/**
* @dev Multiply an Exp by a scalar, returning a new Exp.
*/
function mulScalar(Exp memory a, uint scalar) pure internal returns (MathError, Exp memory) {
(MathError err0, uint scaledMantissa) = mulUInt(a.mantissa, scalar);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({mantissa: 0}));
}
return (MathError.NO_ERROR, Exp({mantissa: scaledMantissa}));
}
/**
* @dev Multiply an Exp by a scalar, then truncate to return an unsigned integer.
*/
function mulScalarTruncate(Exp memory a, uint scalar) pure internal returns (MathError, uint) {
(MathError err, Exp memory product) = mulScalar(a, scalar);
if (err != MathError.NO_ERROR) {
return (err, 0);
}
return (MathError.NO_ERROR, truncate(product));
}
/**
* @dev Divide a scalar by an Exp, returning a new Exp.
*/
function divScalarByExp(uint scalar, Exp memory divisor) pure internal returns (MathError, Exp memory) {
/*
We are doing this as:
getExp(mulUInt(expScale, scalar), divisor.mantissa)
How it works:
Exp = a / b;
Scalar = s;
`s / (a / b)` = `b * s / a` and since for an Exp `a = mantissa, b = expScale`
*/
(MathError err0, uint numerator) = mulUInt(expScale, scalar);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({mantissa: 0}));
}
return getExp(numerator, divisor.mantissa);
}
/**
* @dev Multiplies two exponentials, returning a new exponential.
*/
function mulExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {
(MathError err0, uint doubleScaledProduct) = mulUInt(a.mantissa, b.mantissa);
if (err0 != MathError.NO_ERROR) {
return (err0, Exp({mantissa: 0}));
}
// We add half the scale before dividing so that we get rounding instead of truncation.
// See "Listing 6" and text above it at https://accu.org/index.php/journals/1717
// Without this change, a result like 6.6...e-19 will be truncated to 0 instead of being rounded to 1e-18.
(MathError err1, uint doubleScaledProductWithHalfScale) = addUInt(halfExpScale, doubleScaledProduct);
if (err1 != MathError.NO_ERROR) {
return (err1, Exp({mantissa: 0}));
}
(MathError err2, uint product) = divUInt(doubleScaledProductWithHalfScale, expScale);
// The only error `div` can return is MathError.DIVISION_BY_ZERO but we control `expScale` and it is not zero.
assert(err2 == MathError.NO_ERROR);
return (MathError.NO_ERROR, Exp({mantissa: product}));
}
/**
* @dev Multiplies two exponentials given their mantissas, returning a new exponential.
*/
function mulExp(uint a, uint b) pure internal returns (MathError, Exp memory) {
return mulExp(Exp({mantissa: a}), Exp({mantissa: b}));
}
/**
* @dev Divides two exponentials, returning a new exponential.
* (a/scale) / (b/scale) = (a/scale) * (scale/b) = a/b,
* which we can scale as an Exp by calling getExp(a.mantissa, b.mantissa)
*/
function divExp(Exp memory a, Exp memory b) pure internal returns (MathError, Exp memory) {
return getExp(a.mantissa, b.mantissa);
}
/**
* @dev Truncates the given exp to a whole number value.
* For example, truncate(Exp{mantissa: 15 * expScale}) = 15
*/
function truncate(Exp memory exp) pure internal returns (uint) {
// Note: We are not using careful math here as we're performing a division that cannot fail
return exp.mantissa / expScale;
}
function safe224(uint n, string memory errorMessage) pure internal returns (uint224) {
require(n < 2**224, errorMessage);
return uint224(n);
}
function add_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {
return Exp({mantissa: add_(a.mantissa, b.mantissa)});
}
function add_(Double memory a, Double memory b) pure internal returns (Double memory) {
return Double({mantissa: add_(a.mantissa, b.mantissa)});
}
function add_(uint a, uint b) pure internal returns (uint) {
return add_(a, b, "addition overflow");
}
function add_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {
uint c = a + b;
require(c >= a, errorMessage);
return c;
}
function sub_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {
return Exp({mantissa: sub_(a.mantissa, b.mantissa)});
}
function sub_(Double memory a, Double memory b) pure internal returns (Double memory) {
return Double({mantissa: sub_(a.mantissa, b.mantissa)});
}
function sub_(uint a, uint b) pure internal returns (uint) {
return sub_(a, b, "subtraction underflow");
}
function sub_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {
require(b <= a, errorMessage);
return a - b;
}
function mul_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {
return Exp({mantissa: mul_(a.mantissa, b.mantissa) / expScale});
}
function mul_(Exp memory a, uint b) pure internal returns (Exp memory) {
return Exp({mantissa: mul_(a.mantissa, b)});
}
function mul_(uint a, Exp memory b) pure internal returns (uint) {
return mul_(a, b.mantissa) / expScale;
}
function mul_(Double memory a, Double memory b) pure internal returns (Double memory) {
return Double({mantissa: mul_(a.mantissa, b.mantissa) / doubleScale});
}
function mul_(Double memory a, uint b) pure internal returns (Double memory) {
return Double({mantissa: mul_(a.mantissa, b)});
}
function mul_(uint a, Double memory b) pure internal returns (uint) {
return mul_(a, b.mantissa) / doubleScale;
}
function mul_(uint a, uint b) pure internal returns (uint) {
return mul_(a, b, "multiplication overflow");
}
function mul_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {
if (a == 0 || b == 0) {
return 0;
}
uint c = a * b;
require(c / a == b, errorMessage);
return c;
}
function div_(Exp memory a, Exp memory b) pure internal returns (Exp memory) {
return Exp({mantissa: div_(mul_(a.mantissa, expScale), b.mantissa)});
}
function div_(Exp memory a, uint b) pure internal returns (Exp memory) {
return Exp({mantissa: div_(a.mantissa, b)});
}
function div_(uint a, Exp memory b) pure internal returns (uint) {
return div_(mul_(a, expScale), b.mantissa);
}
function div_(Double memory a, Double memory b) pure internal returns (Double memory) {
return Double({mantissa: div_(mul_(a.mantissa, doubleScale), b.mantissa)});
}
function div_(Double memory a, uint b) pure internal returns (Double memory) {
return Double({mantissa: div_(a.mantissa, b)});
}
function div_(uint a, Double memory b) pure internal returns (uint) {
return div_(mul_(a, doubleScale), b.mantissa);
}
function div_(uint a, uint b) pure internal returns (uint) {
return div_(a, b, "divide by zero");
}
function div_(uint a, uint b, string memory errorMessage) pure internal returns (uint) {
require(b > 0, errorMessage);
return a / b;
}
function fraction(uint a, uint b) pure internal returns (Double memory) {
return Double({mantissa: div_(mul_(a, doubleScale), b)});
}
// New functions added by BProtocol
// =================================
function mulTrucate(uint a, uint b) internal pure returns (uint) {
return mul_(a, b) / expScale;
}
}
// File: @openzeppelin/contracts/math/SafeMath.sol
pragma solidity ^0.5.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
// File: @openzeppelin/contracts/utils/Address.sol
pragma solidity ^0.5.5;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Converts an `address` into `address payable`. Note that this is
* simply a type cast: the actual underlying value is not changed.
*
* _Available since v2.4.0._
*/
function toPayable(address account) internal pure returns (address payable) {
return address(uint160(account));
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*
* _Available since v2.4.0._
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-call-value
(bool success, ) = recipient.call.value(amount)("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
// File: @openzeppelin/contracts/token/ERC20/SafeERC20.sol
pragma solidity ^0.5.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves.
// A Solidity high level call has three parts:
// 1. The target address is checked to verify it contains contract code
// 2. The call itself is made, and success asserted
// 3. The return value is decoded, which in turn checks the size of the returned data.
// solhint-disable-next-line max-line-length
require(address(token).isContract(), "SafeERC20: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = address(token).call(data);
require(success, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts/bprotocol/btoken/AbsBToken.sol
pragma solidity 0.5.16;
// Interface
// Libs
/**
* @title AbsBToken is BProtocol token contract which represents the Compound's CToken
*/
contract AbsBToken is Exponential {
using SafeERC20 for IERC20;
// BProtocol Registry contract
IRegistry public registry;
// Compound's CToken this BToken contract is tied to
address public cToken;
modifier onlyDelegatee(address _avatar) {
// `msg.sender` is delegatee
require(registry.delegate(_avatar, msg.sender), "BToken: delegatee-not-authorized");
_;
}
constructor(address _registry, address _cToken) internal {
registry = IRegistry(_registry);
cToken = _cToken;
}
function _myAvatar() internal returns (address) {
return registry.getAvatar(msg.sender);
}
// CEther / CErc20
// ===============
function borrowBalanceCurrent(address account) external returns (uint256) {
address _avatar = registry.getAvatar(account);
return IAvatar(_avatar).borrowBalanceCurrent(cToken);
}
// redeem()
function redeem(uint256 redeemTokens) external returns (uint256) {
return _redeem(_myAvatar(), redeemTokens);
}
function redeemOnAvatar(address _avatar, uint256 redeemTokens) external onlyDelegatee(_avatar) returns (uint256) {
return _redeem(_avatar, redeemTokens);
}
function _redeem(address _avatar, uint256 redeemTokens) internal returns (uint256) {
uint256 result = IAvatar(_avatar).redeem(cToken, redeemTokens, msg.sender);
require(result == 0, "BToken: redeem-failed");
return result;
}
// redeemUnderlying()
function redeemUnderlying(uint256 redeemAmount) external returns (uint256) {
return _redeemUnderlying(_myAvatar(), redeemAmount);
}
function redeemUnderlyingOnAvatar(address _avatar, uint256 redeemAmount) external onlyDelegatee(_avatar) returns (uint256) {
return _redeemUnderlying(_avatar, redeemAmount);
}
function _redeemUnderlying(address _avatar, uint256 redeemAmount) internal returns (uint256) {
uint256 result = IAvatar(_avatar).redeemUnderlying(cToken, redeemAmount, msg.sender);
require(result == 0, "BToken: redeemUnderlying-failed");
return result;
}
// borrow()
function borrow(uint256 borrowAmount) external returns (uint256) {
return _borrow(_myAvatar(), borrowAmount);
}
function borrowOnAvatar(address _avatar, uint256 borrowAmount) external onlyDelegatee(_avatar) returns (uint256) {
return _borrow(_avatar, borrowAmount);
}
function _borrow(address _avatar, uint256 borrowAmount) internal returns (uint256) {
uint256 result = IAvatar(_avatar).borrow(cToken, borrowAmount, msg.sender);
require(result == 0, "BToken: borrow-failed");
return result;
}
// other functions
function exchangeRateCurrent() public returns (uint256) {
return ICToken(cToken).exchangeRateCurrent();
}
function exchangeRateStored() public view returns (uint) {
return ICToken(cToken).exchangeRateStored();
}
// IERC20
// =======
// transfer()
function transfer(address dst, uint256 amount) external returns (bool) {
return _transfer(_myAvatar(), dst, amount);
}
function transferOnAvatar(address _avatar, address dst, uint256 amount) external onlyDelegatee(_avatar) returns (bool) {
return _transfer(_avatar, dst, amount);
}
function _transfer(address _avatar, address dst, uint256 amount) internal returns (bool) {
bool result = IAvatar(_avatar).transfer(cToken, dst, amount);
require(result, "BToken: transfer-failed");
return result;
}
// transferFrom()
function transferFrom(address src, address dst, uint256 amount) external returns (bool) {
return _transferFrom(_myAvatar(), src, dst, amount);
}
function transferFromOnAvatar(address _avatar, address src, address dst, uint256 amount) external onlyDelegatee(_avatar) returns (bool) {
return _transferFrom(_avatar, src, dst, amount);
}
function _transferFrom(address _avatar, address src, address dst, uint256 amount) internal returns (bool) {
bool result = IAvatar(_avatar).transferFrom(cToken, src, dst, amount);
require(result, "BToken: transferFrom-failed");
return result;
}
// approve()
function approve(address spender, uint256 amount) public returns (bool) {
return IAvatar(_myAvatar()).approve(cToken, spender, amount);
}
function approveOnAvatar(address _avatar, address spender, uint256 amount) public onlyDelegatee(_avatar) returns (bool) {
return IAvatar(_avatar).approve(cToken, spender, amount);
}
function allowance(address owner, address spender) public view returns (uint256) {
address spenderAvatar = registry.avatarOf(spender);
if(spenderAvatar == address(0)) return 0;
return ICToken(cToken).allowance(registry.avatarOf(owner), spenderAvatar);
}
function balanceOf(address owner) public view returns (uint256) {
address avatar = registry.avatarOf(owner);
if(avatar == address(0)) return 0;
return ICToken(cToken).balanceOf(avatar);
}
function balanceOfUnderlying(address owner) external returns (uint) {
address avatar = registry.avatarOf(owner);
if(avatar == address(0)) return 0;
return ICToken(cToken).balanceOfUnderlying(avatar);
}
function name() public view returns (string memory) {
return ICToken(cToken).name();
}
function symbol() public view returns (string memory) {
return ICToken(cToken).symbol();
}
function decimals() public view returns (uint8) {
return ICToken(cToken).decimals();
}
function totalSupply() public view returns (uint256) {
return ICToken(cToken).totalSupply();
}
}
// File: contracts/bprotocol/btoken/BErc20.sol
pragma solidity 0.5.16;
contract BErc20 is AbsBToken {
IERC20 public underlying;
constructor(
address _registry,
address _cToken
) public AbsBToken(_registry, _cToken) {
underlying = ICToken(cToken).underlying();
}
// mint()
function mint(uint256 mintAmount) external returns (uint256) {
return _mint(_myAvatar(), mintAmount);
}
function mintOnAvatar(address _avatar, uint256 mintAmount) external onlyDelegatee(_avatar) returns (uint256) {
return _mint(_avatar, mintAmount);
}
function _mint(address _avatar, uint256 mintAmount) internal returns (uint256) {
underlying.safeTransferFrom(msg.sender, _avatar, mintAmount);
uint256 result = IAvatarCErc20(_avatar).mint(cToken, mintAmount);
require(result == 0, "BErc20: mint-failed");
return result;
}
// repayBorrow()
function repayBorrow(uint256 repayAmount) external returns (uint256) {
return _repayBorrow(_myAvatar(), repayAmount);
}
function repayBorrowOnAvatar(address _avatar, uint256 repayAmount) external onlyDelegatee(_avatar) returns (uint256) {
return _repayBorrow(_avatar, repayAmount);
}
function _repayBorrow(address _avatar, uint256 repayAmount) internal returns (uint256) {
uint256 actualRepayAmount = repayAmount;
if(repayAmount == uint256(-1)) {
actualRepayAmount = IAvatarCErc20(_avatar).borrowBalanceCurrent(cToken);
}
underlying.safeTransferFrom(msg.sender, _avatar, actualRepayAmount);
uint256 result = IAvatarCErc20(_avatar).repayBorrow(cToken, actualRepayAmount);
require(result == 0, "BErc20: repayBorrow-failed");
return result;
}
} | 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{"constant":true,"inputs":[],"name":"registry","outputs":[{"internalType":"contract IRegistry","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"repayAmount","type":"uint256"}],"name":"repayBorrow","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_avatar","type":"address"},{"internalType":"uint256","name":"repayAmount","type":"uint256"}],"name":"repayBorrowOnAvatar","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"src","type":"address"},{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_avatar","type":"address"},{"internalType":"address","name":"src","type":"address"},{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFromOnAvatar","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_avatar","type":"address"},{"internalType":"address","name":"dst","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferOnAvatar","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"underlying","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}] | v0.5.16+commit.9c3226ce | true | 200 | 000000000000000000000000bf698df5591caf546a7e087f5806e216afed666a0000000000000000000000006c8c6b02e7b2be14d4fa6022dfd6d75921d90e4e | Default | BSD-3-Clause | false | bzzr://f7afcbc84104aa2002fff7a58365202348ec008c644892067cf463188ac5f448 | ||
WeaponTest | 0x0f3062f422f57b4f851da56a4f3668afce27d02f | Solidity | // SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// Interfaces
interface IERC165 {
function supportsInterface(bytes4 _interfaceId) external view returns (bool);
}
interface IERC721 {
function balanceOf(address _owner) external view returns (uint256 balance);
function ownerOf(uint256 _tokenId) external view returns (address owner);
function safeTransferFrom(address _from, address _to, uint256 _tokenId) external payable;
function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes calldata _data) external payable;
function transferFrom(address _from, address _to, uint256 _tokenId) external payable;
function approve(address _to, uint256 _tokenId) external payable;
function setApprovalForAll(address _operator, bool _approved) external;
function getApproved(uint256 _tokenId) external view returns (address operator);
function isApprovedForAll(address _owner, address _operator) external view returns (bool);
}
interface IERC721Metadata {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function tokenURI(uint256 _tokenId) external view returns (string memory);
}
interface IERC721Receiver {
function onERC721Received(address _operator, address _from, uint256 _tokenId, bytes calldata _data) external returns (bytes4);
}
library LibPart {
bytes32 public constant TYPE_HASH = keccak256("Part(address account,uint96 value)");
struct Part {
address payable account;
uint256 value;
}
function hash(Part memory part) internal pure returns (bytes32) {
return keccak256(abi.encode(TYPE_HASH, part.account, part.value));
}
}
// Abstract Contracts
abstract contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
owner = msg.sender;
}
receive() external payable {
// Do nothing
}
modifier onlyOwner() {
require(owner == msg.sender, "Ownable: caller is not the owner");
_;
}
function transferOwnership(address _newOwner) public virtual onlyOwner {
require(_newOwner != address(0), "Ownable: new owner is the zero address");
owner = _newOwner;
}
}
abstract contract Mintable {
mapping (address => bool) public minters;
constructor() {
minters[msg.sender] = true;
}
modifier onlyMinter() {
require(minters[msg.sender], "Mintable: caller is not the minter");
_;
}
function setMinter(address _minter) public virtual onlyMinter {
require(_minter != address(0), "Mintable: new minter is the zero address");
minters[_minter] = true;
}
function removeMinter(address _minter) external onlyMinter returns (bool) {
require(minters[_minter], "Mintable: _minter is not a minter");
minters[_minter] = false;
return true;
}
}
abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
modifier nonReentrant() {
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
_status = _ENTERED;
_;
_status = _NOT_ENTERED;
}
}
// Contract
contract WeaponTest is Ownable, Mintable, ReentrancyGuard {
// ERC721
mapping(uint256 => address) private _owners;
mapping(address => uint256) private _balances;
mapping(uint256 => address) private _tokenApprovals;
mapping(address => mapping(address => bool)) private _operatorApprovals;
event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId);
event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId);
event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);
event RoyaltiesSet(uint256 tokenId, LibPart.Part[] royalities);
// Constants
bytes4 private constant _INTERFACE_ID_ROYALTIES = 0xcad96cca; // Rarible
bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a; // ERC2981
// ERC721Metadata
string public name = 'Szk Weapon';
string public symbol = 'WSZK';
// ERC721Enumerable
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
mapping(uint256 => uint256) private _ownedTokensIndex;
uint256[] private _allTokens;
mapping(uint256 => uint256) private _allTokensIndex;
// Rarible
mapping (uint256 => LibPart.Part[]) internal royalties;
LibPart.Part internal globalRoyalty;
// Constructor
constructor() {}
// ERC165
function supportsInterface(bytes4 interfaceId) public pure returns (bool) {
return
interfaceId == type(IERC165).interfaceId ||
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == _INTERFACE_ID_ROYALTIES ||
interfaceId == _INTERFACE_ID_ERC2981;
}
uint256 public savedGasPrice;
uint256 public savedGasFee;
uint256 public savedBalance;
// Customized (public)
function mint(
address _to,
uint256 _tokenId) external returns (bool) {
_mint(_to, _tokenId);
return true;
}
// ERC721 (public)
function balanceOf(address owner) public view returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
function ownerOf(uint256 tokenId) public view returns (address) {
address tokenOwner = _owners[tokenId];
require(tokenOwner != address(0), "ERC721: owner query for nonexistent token");
return tokenOwner;
}
function approve(address to, uint256 tokenId) public returns (bool) {
address owner = ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
msg.sender == owner || isApprovedForAll(owner, msg.sender),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
return true;
}
function getApproved(uint256 tokenId) public view returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
function setApprovalForAll(address operator, bool approved) public returns (bool) {
require(operator != msg.sender, "ERC721: approve to caller");
_operatorApprovals[msg.sender][operator] = approved;
emit ApprovalForAll(msg.sender, operator, approved);
return true;
}
function isApprovedForAll(address owner, address operator) public view returns (bool) {
return _operatorApprovals[owner][operator];
}
function transferFrom(address from, address to, uint256 tokenId) public returns (bool) {
require(_isApprovedOrOwner(msg.sender, tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
return true;
}
function safeTransferFrom(address from, address to, uint256 tokenId) public {
safeTransferFrom(from, to, tokenId, "");
}
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public returns (bool) {
require(_isApprovedOrOwner(msg.sender, tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
return true;
}
// ERC721 (private)
function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) private {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
function _exists(uint256 tokenId) private view returns (bool) {
return _owners[tokenId] != address(0);
}
function _isApprovedOrOwner(address spender, uint256 tokenId) private view returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
function _mint(
address _to,
uint256 _tokenId) private {
require(_tokenId > 0, "Shizuk: tokenId should be non-zero");
require(_tokenId < 10, "Shizuk: tokenId should be less than 10");
require(!_exists(_tokenId), "ERC721: token already minted");
require(_to != address(0), "ERC721: mint to the zero address");
_beforeTokenTransfer(address(0), _to, _tokenId);
_balances[_to] += 1;
_owners[_tokenId] = _to;
emit Transfer(address(0), owner, _tokenId);
emit Transfer(owner, _to, _tokenId);
}
function _transfer(address from, address to, uint256 tokenId) private {
require(ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
function _approve(address to, uint256 tokenId) private {
_tokenApprovals[tokenId] = to;
emit Approval(ownerOf(tokenId), to, tokenId);
}
function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data) private returns (bool) {
if (isContract(to)) {
try IERC721Receiver(to).onERC721Received(msg.sender, from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
// ERC721Metadata
string public baseURI = 'https://develop.shizuk.io/metadata/';
function setBaseURI(string memory _baseURI) external onlyOwner returns (bool) {
baseURI = _baseURI;
return true;
}
function tokenURI(uint256 _tokenId) public view returns (string memory) {
require(_exists(_tokenId), "ERC721Metadata: URI query for nonexistent token");
return string(abi.encodePacked(baseURI, toString(_tokenId), '.json'));
}
// ERC721Enumerable (public)
function totalSupply() public view returns (uint256) {
return _allTokens.length;
}
function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {
require(index < balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
return _ownedTokens[owner][index];
}
function tokenByIndex(uint256 index) public view returns (uint256) {
require(index < totalSupply(), "ERC721Enumerable: global index out of bounds");
return _allTokens[index];
}
// ERC721Enumerable (private)
function _beforeTokenTransfer(address from, address to, uint256 tokenId) private {
if (from == address(0)) {
_addTokenToAllTokensEnumeration(tokenId);
} else if (from != to) {
_removeTokenFromOwnerEnumeration(from, tokenId);
}
if (to == address(0)) {
_removeTokenFromAllTokensEnumeration(tokenId);
} else if (to != from) {
_addTokenToOwnerEnumeration(to, tokenId);
}
}
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
uint256 length = balanceOf(to);
_ownedTokens[to][length] = tokenId;
_ownedTokensIndex[tokenId] = length;
}
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
_allTokensIndex[tokenId] = _allTokens.length;
_allTokens.push(tokenId);
}
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
uint256 lastTokenIndex = balanceOf(from) - 1;
uint256 tokenIndex = _ownedTokensIndex[tokenId];
if (tokenIndex != lastTokenIndex) {
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
}
delete _ownedTokensIndex[tokenId];
delete _ownedTokens[from][lastTokenIndex];
}
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
uint256 lastTokenIndex = _allTokens.length - 1;
uint256 tokenIndex = _allTokensIndex[tokenId];
uint256 lastTokenId = _allTokens[lastTokenIndex];
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
delete _allTokensIndex[tokenId];
_allTokens.pop();
}
// ERC2981
function royaltyInfo(uint256 id, uint256 _salePrice) external view returns (address receiver, uint256 royaltyAmount) {
if(globalRoyalty.value == 0) {
if (royalties[id].length == 0) {
receiver = address(0);
royaltyAmount = 0;
} else {
LibPart.Part[] memory _royalties = royalties[id];
receiver = _royalties[0].account;
uint basisPoint;
for (uint i = 0; i < _royalties.length; i++) {
basisPoint += _royalties[i].value;
}
royaltyAmount = basisPoint * _salePrice / 10000;
}
} else {
receiver = globalRoyalty.account;
royaltyAmount = globalRoyalty.value * _salePrice / 10000;
}
}
// Rarible
function _updateAccount(uint256 _id, address _from, address _to) internal {
uint length = royalties[_id].length;
for(uint i = 0; i < length; i++) {
if (royalties[_id][i].account == _from) {
royalties[_id][i].account = payable(address(uint160(_to)));
}
}
}
function getRaribleV2Royalties(uint256 id) external view returns (LibPart.Part[] memory) {
if(globalRoyalty.value == 0) {
return royalties[id];
} else{
LibPart.Part[] memory _royalties = new LibPart.Part[](1);
_royalties[0] = globalRoyalty;
return _royalties;
}
}
function _onRoyaltiesSet(uint256 id, LibPart.Part[] memory _royalties) internal {
emit RoyaltiesSet(id, _royalties);
}
function setRoyalty(uint256 _tokenId, address payable _royaltiesRecipientAddress, uint96 _percentageBasisPoints) public onlyOwner returns (bool) {
require(_royaltiesRecipientAddress != address(0), "Recipient should be present");
require(_percentageBasisPoints != 0, "Royalty value should be positive");
require(_percentageBasisPoints < 10000, "Royalty total value should be < 10000");
LibPart.Part[] memory _royalties = new LibPart.Part[](1);
_royalties[0].account = _royaltiesRecipientAddress;
_royalties[0].value = _percentageBasisPoints;
if(royalties[_tokenId].length > 0) {
royalties[_tokenId][0].account = _royaltiesRecipientAddress;
royalties[_tokenId][0].value = _percentageBasisPoints;
} else {
royalties[_tokenId].push(_royalties[0]);
}
_onRoyaltiesSet(_tokenId, _royalties);
return true;
}
function setGlobalRoyalty(address payable _royaltiesRecipientAddress, uint96 _percentageBasisPoints) public onlyOwner returns (bool) {
globalRoyalty = LibPart.Part(_royaltiesRecipientAddress, _percentageBasisPoints);
return true;
}
// Utils
function isContract(address account) private view returns (bool) {
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
function toString(uint256 value) private pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
function destruct() external onlyOwner {
selfdestruct(payable(msg.sender));
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_operator","type":"address"},{"indexed":false,"internalType":"bool","name":"_approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"address payable","name":"account","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"indexed":false,"internalType":"struct LibPart.Part[]","name":"royalities","type":"tuple[]"}],"name":"RoyaltiesSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":true,"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"destruct","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getRaribleV2Royalties","outputs":[{"components":[{"internalType":"address payable","name":"account","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct LibPart.Part[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"minters","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"removeMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"savedBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"savedGasFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"savedGasPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_baseURI","type":"string"}],"name":"setBaseURI","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_royaltiesRecipientAddress","type":"address"},{"internalType":"uint96","name":"_percentageBasisPoints","type":"uint96"}],"name":"setGlobalRoyalty","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"setMinter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"address payable","name":"_royaltiesRecipientAddress","type":"address"},{"internalType":"uint96","name":"_percentageBasisPoints","type":"uint96"}],"name":"setRoyalty","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.7+commit.e28d00a7 | true | 200 | Default | MIT | false | ipfs://9e145a54af65fa91937c328176a307cedf0296364c033ef82463dfdda314e2d7 | |||
GnosisSafeProxy | 0x86335f0f2b20e41e0ecfd6c895218ba0e6c576ef | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
WalletProxy | 0x56e3bff3d7cfbb7768b2cd264378813b42fdcd92 | Solidity | // SPDX-License-Identifier: LGPL-3.0-or-later
// Taken from: https://github.com/gnosis/safe-contracts/blob/development/contracts/proxies/GnosisSafeProxy.sol
pragma solidity ^0.7.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title WalletProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract WalletProxy {
// masterCopy always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal masterCopy;
/// @dev Constructor function sets address of master copy contract.
/// @param _masterCopy Master copy address.
constructor(address _masterCopy)
{
require(_masterCopy != address(0), "Invalid master copy address provided");
masterCopy = _masterCopy;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback()
payable
external
{
// solium-disable-next-line security/no-inline-assembly
assembly {
let _masterCopy := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _masterCopy)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _masterCopy, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) { revert(0, returndatasize()) }
return(0, returndatasize())
}
}
} | [{"inputs":[{"internalType":"address","name":"_masterCopy","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | true | 100,000 | 0000000000000000000000005fc8a17dded0a4da0f9a1e44e6c26f80aa514145 | Default | None | false | ipfs://676404d5a2e50e328cc18fc786619f9629ae43d7ff695286c941717f0a1541e5 | ||
UserWallet | 0x4ec9bf22bced5e6d3e98ef296f5880bf69c68213 | Solidity | pragma solidity ^0.4.10;
// Copyright 2017 Bittrex
contract AbstractSweeper {
function sweep(address token, uint amount) returns (bool);
function () { throw; }
Controller controller;
function AbstractSweeper(address _controller) {
controller = Controller(_controller);
}
modifier canSweep() {
if (msg.sender != controller.authorizedCaller() && msg.sender != controller.owner()) throw;
if (controller.halted()) throw;
_;
}
}
contract Token {
function balanceOf(address a) returns (uint) {
(a);
return 0;
}
function transfer(address a, uint val) returns (bool) {
(a);
(val);
return false;
}
}
contract DefaultSweeper is AbstractSweeper {
function DefaultSweeper(address controller)
AbstractSweeper(controller) {}
function sweep(address _token, uint _amount)
canSweep
returns (bool) {
bool success = false;
address destination = controller.destination();
if (_token != address(0)) {
Token token = Token(_token);
uint amount = _amount;
if (amount > token.balanceOf(this)) {
return false;
}
success = token.transfer(destination, amount);
}
else {
uint amountInWei = _amount;
if (amountInWei > this.balance) {
return false;
}
success = destination.send(amountInWei);
}
if (success) {
controller.logSweep(this, destination, _token, _amount);
}
return success;
}
}
contract UserWallet {
AbstractSweeperList sweeperList;
function UserWallet(address _sweeperlist) {
sweeperList = AbstractSweeperList(_sweeperlist);
}
function () public payable { }
function tokenFallback(address _from, uint _value, bytes _data) {
(_from);
(_value);
(_data);
}
function sweep(address _token, uint _amount)
returns (bool) {
(_amount);
return sweeperList.sweeperOf(_token).delegatecall(msg.data);
}
}
contract AbstractSweeperList {
function sweeperOf(address _token) returns (address);
}
contract Controller is AbstractSweeperList {
address public owner;
address public authorizedCaller;
address public destination;
bool public halted;
event LogNewWallet(address receiver);
event LogSweep(address indexed from, address indexed to, address indexed token, uint amount);
modifier onlyOwner() {
if (msg.sender != owner) throw;
_;
}
modifier onlyAuthorizedCaller() {
if (msg.sender != authorizedCaller) throw;
_;
}
modifier onlyAdmins() {
if (msg.sender != authorizedCaller && msg.sender != owner) throw;
_;
}
function Controller()
{
owner = msg.sender;
destination = msg.sender;
authorizedCaller = msg.sender;
}
function changeAuthorizedCaller(address _newCaller) onlyOwner {
authorizedCaller = _newCaller;
}
function changeDestination(address _dest) onlyOwner {
destination = _dest;
}
function changeOwner(address _owner) onlyOwner {
owner = _owner;
}
function makeWallet() onlyAdmins returns (address wallet) {
wallet = address(new UserWallet(this));
LogNewWallet(wallet);
}
function halt() onlyAdmins {
halted = true;
}
function start() onlyOwner {
halted = false;
}
address public defaultSweeper = address(new DefaultSweeper(this));
mapping (address => address) sweepers;
function addSweeper(address _token, address _sweeper) onlyOwner {
sweepers[_token] = _sweeper;
}
function sweeperOf(address _token) returns (address) {
address sweeper = sweepers[_token];
if (sweeper == 0) sweeper = defaultSweeper;
return sweeper;
}
function logSweep(address from, address to, address token, uint amount) {
LogSweep(from, to, token, amount);
}
} | [{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"name":"sweep","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"tokenFallback","outputs":[],"payable":false,"type":"function"},{"inputs":[{"name":"_sweeperlist","type":"address"}],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"}] | v0.4.11+commit.68ef5810 | true | 200 | 000000000000000000000000a3C1E324CA1ce40db73eD6026c4A177F099B5770 | Default | false | bzzr://4cdd69fdcf3cf6cbee9677fe380fa5f044048aa9e060ec5619a21ca5a5bd4cd1 | |||
ERC1967Proxy | 0x6adb88ac6a86673f4590ec19f0c01b9aacfd2043 | Solidity | // SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internall call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
// solhint-disable-next-line no-inline-assembly
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 { revert(0, returndatasize()) }
default { return(0, returndatasize()) }
}
}
/**
* @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internall call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback () external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive () external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overriden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {
}
}
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*
*/
abstract contract ERC1967Upgrade {
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallSecure(address newImplementation, bytes memory data, bool forceCall) internal {
address oldImplementation = _getImplementation();
// Initial upgrade and setup call
_setImplementation(newImplementation);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(newImplementation, data);
}
// Perform rollback test if not already in progress
StorageSlot.BooleanSlot storage rollbackTesting = StorageSlot.getBooleanSlot(_ROLLBACK_SLOT);
if (!rollbackTesting.value) {
// Trigger rollback using upgradeTo from the new implementation
rollbackTesting.value = true;
Address.functionDelegateCall(
newImplementation,
abi.encodeWithSignature(
"upgradeTo(address)",
oldImplementation
)
);
rollbackTesting.value = false;
// Check rollback was effective
require(oldImplementation == _getImplementation(), "ERC1967Upgrade: upgrade breaks further upgrades");
// Finally reset to the new implementation and log the upgrade
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
}
/**
* @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
* not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
*
* Emits a {BeaconUpgraded} event.
*/
function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal {
_setBeacon(newBeacon);
emit BeaconUpgraded(newBeacon);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Returns the current admin.
*/
function _getAdmin() internal view returns (address) {
return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
require(newAdmin != address(0), "ERC1967: new admin is the zero address");
StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _changeAdmin(address newAdmin) internal {
emit AdminChanged(_getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
*/
bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Emitted when the beacon is upgraded.
*/
event BeaconUpgraded(address indexed beacon);
/**
* @dev Returns the current beacon.
*/
function _getBeacon() internal view returns (address) {
return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the EIP1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
require(
Address.isContract(newBeacon),
"ERC1967: new beacon is not a contract"
);
require(
Address.isContract(IBeacon(newBeacon).implementation()),
"ERC1967: beacon implementation is not a contract"
);
StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
}
}
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly {
r.slot := slot
}
}
}
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
/**
* @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
* explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
*/
contract ProxyAdmin is Ownable {
/**
* @dev Returns the current implementation of `proxy`.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function getProxyImplementation(TransparentUpgradeableProxy proxy) public view virtual returns (address) {
// We need to manually run the static call since the getter cannot be flagged as view
// bytes4(keccak256("implementation()")) == 0x5c60da1b
(bool success, bytes memory returndata) = address(proxy).staticcall(hex"5c60da1b");
require(success);
return abi.decode(returndata, (address));
}
/**
* @dev Returns the current admin of `proxy`.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function getProxyAdmin(TransparentUpgradeableProxy proxy) public view virtual returns (address) {
// We need to manually run the static call since the getter cannot be flagged as view
// bytes4(keccak256("admin()")) == 0xf851a440
(bool success, bytes memory returndata) = address(proxy).staticcall(hex"f851a440");
require(success);
return abi.decode(returndata, (address));
}
/**
* @dev Changes the admin of `proxy` to `newAdmin`.
*
* Requirements:
*
* - This contract must be the current admin of `proxy`.
*/
function changeProxyAdmin(TransparentUpgradeableProxy proxy, address newAdmin) public virtual onlyOwner {
proxy.changeAdmin(newAdmin);
}
/**
* @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function upgrade(TransparentUpgradeableProxy proxy, address implementation) public virtual onlyOwner {
proxy.upgradeTo(implementation);
}
/**
* @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See
* {TransparentUpgradeableProxy-upgradeToAndCall}.
*
* Requirements:
*
* - This contract must be the admin of `proxy`.
*/
function upgradeAndCall(TransparentUpgradeableProxy proxy, address implementation, bytes memory data) public payable virtual onlyOwner {
proxy.upgradeToAndCall{value: msg.value}(implementation, data);
}
}
/**
* @dev Base contract for building openzeppelin-upgrades compatible implementations for the {ERC1967Proxy}. It includes
* publicly available upgrade functions that are called by the plugin and by the secure upgrade mechanism to verify
* continuation of the upgradability.
*
* The {_authorizeUpgrade} function MUST be overridden to include access restriction to the upgrade mechanism.
*
* _Available since v4.1._
*/
abstract contract UUPSUpgradeable is ERC1967Upgrade {
function upgradeTo(address newImplementation) external virtual {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallSecure(newImplementation, bytes(""), false);
}
function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual {
_authorizeUpgrade(newImplementation);
_upgradeToAndCallSecure(newImplementation, data, true);
}
function _authorizeUpgrade(address newImplementation) internal virtual;
}
abstract contract Proxiable is UUPSUpgradeable {
function _authorizeUpgrade(address newImplementation) internal override {
_beforeUpgrade(newImplementation);
}
function _beforeUpgrade(address newImplementation) internal virtual;
}
contract ChildOfProxiable is Proxiable {
function _beforeUpgrade(address newImplementation) internal virtual override {}
}
/**
* @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
* implementation address that can be changed. This address is stored in storage in the location specified by
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
* implementation behind the proxy.
*/
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
/**
* @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
*
* If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
* function call, and allows initializating the storage of the proxy like a Solidity constructor.
*/
constructor(address _logic, bytes memory _data) payable {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
_upgradeToAndCall(_logic, _data, false);
}
/**
* @dev Returns the current implementation address.
*/
function _implementation() internal view virtual override returns (address impl) {
return ERC1967Upgrade._getImplementation();
}
}
/**
* @dev This contract implements a proxy that is upgradeable by an admin.
*
* To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
* clashing], which can potentially be used in an attack, this contract uses the
* https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
* things that go hand in hand:
*
* 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
* that call matches one of the admin functions exposed by the proxy itself.
* 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the
* implementation. If the admin tries to call a function on the implementation it will fail with an error that says
* "admin cannot fallback to proxy target".
*
* These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing
* the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due
* to sudden errors when trying to call a function from the proxy implementation.
*
* Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way,
* you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy.
*/
contract TransparentUpgradeableProxy is ERC1967Proxy {
/**
* @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and
* optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}.
*/
constructor(address _logic, address admin_, bytes memory _data) payable ERC1967Proxy(_logic, _data) {
assert(_ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1));
_changeAdmin(admin_);
}
/**
* @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin.
*/
modifier ifAdmin() {
if (msg.sender == _getAdmin()) {
_;
} else {
_fallback();
}
}
/**
* @dev Returns the current admin.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
* https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
*/
function admin() external ifAdmin returns (address admin_) {
admin_ = _getAdmin();
}
/**
* @dev Returns the current implementation.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}.
*
* TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the
* https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
* `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
*/
function implementation() external ifAdmin returns (address implementation_) {
implementation_ = _implementation();
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}.
*/
function changeAdmin(address newAdmin) external virtual ifAdmin {
_changeAdmin(newAdmin);
}
/**
* @dev Upgrade the implementation of the proxy.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}.
*/
function upgradeTo(address newImplementation) external ifAdmin {
_upgradeToAndCall(newImplementation, bytes(""), false);
}
/**
* @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified
* by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the
* proxied contract.
*
* NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}.
*/
function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin {
_upgradeToAndCall(newImplementation, data, true);
}
/**
* @dev Returns the current admin.
*/
function _admin() internal view virtual returns (address) {
return _getAdmin();
}
/**
* @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}.
*/
function _beforeFallback() internal virtual override {
require(msg.sender != _getAdmin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target");
super._beforeFallback();
}
}
// Kept for backwards compatibility with older versions of Hardhat and Truffle plugins.
contract AdminUpgradeabilityProxy is TransparentUpgradeableProxy {
constructor(address logic, address admin, bytes memory data) payable TransparentUpgradeableProxy(logic, admin, data) {}
} | [{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}] | v0.8.2+commit.661d1103 | true | 200 | 0000000000000000000000008fd46e7f74e5976837135a42c4bfc946fe5a229f00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000044485cc9550000000000000000000000001111111111accdf36dbee012fc26bb9fcc1d140d0000000000000000000000009978be4de5beb786da4727a545b14fec2266511700000000000000000000000000000000000000000000000000000000 | Default | MIT | false | ipfs://9b8470f06e8a3960c912103fc2be177edaad69584ee3c7d2809ee737e79408e7 | ||
ProbsNothing | 0xbb48bfc6f15479ff86a11fea3bd7284512bc5a1d | Solidity | /**
Could be Probs nothing, or Probs something?
nothing is promised, something or nothing?
Telegram: T.me/probsnothing
**/
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.4;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
contract Ownable is Context {
address private _owner;
address private _previousOwner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
contract ProbsNothing is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private bots;
mapping (address => uint) private cooldown;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1e12 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 private _feeAddr1;
uint256 private _feeAddr2;
address payable private _feeAddrWallet1;
address payable private _feeAddrWallet2;
string private constant _name = "Probs Nothing";
string private constant _symbol = "PN";
uint8 private constant _decimals = 9;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
bool private cooldownEnabled = false;
uint256 private _maxTxAmount = _tTotal;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_feeAddrWallet1 = payable(0xE0EEFe60fd142Beb751C6C25eFDA3e36F1c743E0);
_feeAddrWallet2 = payable(0xE0EEFe60fd142Beb751C6C25eFDA3e36F1c743E0);
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet1] = true;
_isExcludedFromFee[_feeAddrWallet2] = true;
emit Transfer(address(0xE0EEFe60fd142Beb751C6C25eFDA3e36F1c743E0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function setCooldownEnabled(bool onoff) external onlyOwner() {
cooldownEnabled = onoff;
}
function tokenFromReflection(uint256 rAmount) private view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
_feeAddr1 = 2;
_feeAddr2 = 10;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to]);
if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) {
// Cooldown
require(amount <= _maxTxAmount);
require(cooldown[to] < block.timestamp);
cooldown[to] = block.timestamp + (15 seconds);
}
if (to == uniswapV2Pair && from != address(uniswapV2Router) && ! _isExcludedFromFee[from]) {
_feeAddr1 = 2;
_feeAddr2 = 10;
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && from != uniswapV2Pair && swapEnabled) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
_tokenTransfer(from,to,amount);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_feeAddrWallet1.transfer(amount.div(2));
_feeAddrWallet2.transfer(amount.div(2));
}
function openTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
swapEnabled = true;
cooldownEnabled = true;
_maxTxAmount = 1e12 * 10**9;
tradingOpen = true;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
function setBots(address[] memory bots_) public onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function removeStrictTxLimit() public onlyOwner {
_maxTxAmount = 1e12 * 10**9;
}
function delBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function _tokenTransfer(address sender, address recipient, uint256 amount) private {
_transferStandard(sender, recipient, amount);
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function manualswap() external {
require(_msgSender() == _feeAddrWallet1);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _feeAddrWallet1);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) {
uint256 tFee = tAmount.mul(taxFee).div(100);
uint256 tTeam = tAmount.mul(TeamFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_maxTxAmount","type":"uint256"}],"name":"MaxTxAmountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"notbot","type":"address"}],"name":"delBot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualsend","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualswap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"openTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"removeStrictTxLimit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"bots_","type":"address[]"}],"name":"setBots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"onoff","type":"bool"}],"name":"setCooldownEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.4+commit.c7e474f2 | false | 200 | Default | None | false | ipfs://786438c4bd6398c850534fd6bdccb2a3581bc696c834848821062e05f74de8eb | |||
Proxy | 0x066a40be850cb5f2846ca998f44891ec25e99ce6 | Solidity | // Copyright (C) 2018 Argent Labs Ltd. <https://argent.xyz>
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.3;
/**
* @title Proxy
* @notice Basic proxy that delegates all calls to a fixed implementing contract.
* The implementing contract cannot be upgraded.
* @author Julien Niset - <julien@argent.xyz>
*/
contract Proxy {
address immutable public implementation;
event Received(uint indexed value, address indexed sender, bytes data);
constructor(address _implementation) {
implementation = _implementation;
}
fallback() external payable {
address target = implementation;
// solhint-disable-next-line no-inline-assembly
assembly {
calldatacopy(0, 0, calldatasize())
let result := delegatecall(gas(), target, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
switch result
case 0 {revert(0, returndatasize())}
default {return (0, returndatasize())}
}
}
receive() external payable {
emit Received(msg.value, msg.sender, "");
}
} | [{"inputs":[{"internalType":"address","name":"_implementation","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"Received","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.3+commit.8d00100c | true | 999 | 000000000000000000000000Ab00eA153c43575184ff11Dd5e713c96bE005573 | Default | GNU GPLv3 | false | ipfs://b88a14f52e9d465328c9b3ab476e4b7fa40ed3615fd5409a6afc9885366e03a9 | ||
BaseRewardPool | 0x353e489311b21355461353fec2d02b73ef0ede7f | Solidity | // SPDX-License-Identifier: MIT
pragma solidity 0.6.12;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUtil {
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
}
contract ReentrancyGuard {
uint256 private _guardCounter;
constructor () internal {
_guardCounter = 1;
}
modifier nonReentrant() {
_guardCounter += 1;
uint256 localCounter = _guardCounter;
_;
require(localCounter == _guardCounter, "ReentrancyGuard: reentrant call");
}
}
interface ICurveGauge {
function deposit(uint256) external;
function balanceOf(address) external view returns (uint256);
function withdraw(uint256) external;
function claim_rewards() external;
function reward_tokens(uint256) external view returns(address);//v2
function rewarded_token() external view returns(address);//v1
}
interface ICurveVoteEscrow {
function create_lock(uint256, uint256) external;
function increase_amount(uint256) external;
function increase_unlock_time(uint256) external;
function withdraw() external;
function smart_wallet_checker() external view returns (address);
}
interface IWalletChecker {
function check(address) external view returns (bool);
}
interface IVoting{
function vote(uint256, bool, bool) external; //voteId, support, executeIfDecided
function getVote(uint256) external view returns(bool,bool,uint64,uint64,uint64,uint64,uint256,uint256,uint256,bytes memory);
function vote_for_gauge_weights(address,uint256) external;
}
interface IMinter{
function mint(address) external;
}
interface IRegistry{
function get_registry() external view returns(address);
function get_address(uint256 _id) external view returns(address);
function gauge_controller() external view returns(address);
function get_lp_token(address) external view returns(address);
function get_gauges(address) external view returns(address[10] memory,uint128[10] memory);
}
interface IStaker{
function deposit(address, address) external;
function withdraw(address) external;
function withdraw(address, address, uint256) external;
function withdrawAll(address, address) external;
function createLock(uint256, uint256) external;
function increaseAmount(uint256) external;
function increaseTime(uint256) external;
function release() external;
function claimCrv(address) external returns (uint256);
function claimRewards(address) external;
function claimFees(address,address) external;
function setStashAccess(address, bool) external;
function vote(uint256,address,bool) external;
function voteGaugeWeight(address,uint256) external;
function balanceOfPool(address) external view returns (uint256);
function operator() external view returns (address);
function execute(address _to, uint256 _value, bytes calldata _data) external returns (bool, bytes memory);
}
interface IRewards{
function stake(address, uint256) external;
function stakeFor(address, uint256) external;
function withdraw(address, uint256) external;
function exit(address) external;
function getReward(address) external;
function queueNewRewards(uint256) external;
function notifyRewardAmount(uint256) external;
function addExtraReward(address) external;
function stakingToken() external returns (address);
}
interface IStash{
function stashRewards() external returns (bool);
function processStash() external returns (bool);
function claimRewards() external returns (bool);
}
interface IFeeDistro{
function claim() external;
function token() external view returns(address);
}
interface ITokenMinter{
function mint(address,uint256) external;
function burn(address,uint256) external;
}
interface IDeposit{
function isShutdown() external view returns(bool);
function balanceOf(address _account) external view returns(uint256);
function totalSupply() external view returns(uint256);
function poolInfo(uint256) external view returns(address,address,address,address,address, bool);
function rewardClaimed(uint256,address,uint256) external;
function withdrawTo(uint256,uint256,address) external;
function claimRewards(uint256,address) external returns(bool);
function rewardArbitrator() external returns(address);
}
interface ICrvDeposit{
function deposit(uint256, bool) external;
function lockIncentive() external view returns(uint256);
}
interface IRewardFactory{
function setAccess(address,bool) external;
function CreateCrvRewards(uint256,address) external returns(address);
function CreateTokenRewards(address,address,address) external returns(address);
function activeRewardCount(address) external view returns(uint256);
function addActiveReward(address,uint256) external returns(bool);
function removeActiveReward(address,uint256) external returns(bool);
}
interface IStashFactory{
function CreateStash(uint256,address,address,uint256) external returns(address);
}
interface ITokenFactory{
function CreateDepositToken(address) external returns(address);
}
interface IPools{
function addPool(address _lptoken, address _gauge, uint256 _stashVersion) external returns(bool);
function shutdownPool(uint256 _pid) external returns(bool);
function poolInfo(uint256) external view returns(address,address,address,address,address,bool);
function poolLength() external view returns (uint256);
function gaugeMap(address) external view returns(bool);
function setPoolManager(address _poolM) external;
}
interface IVestedEscrow{
function fund(address[] calldata _recipient, uint256[] calldata _amount) external returns(bool);
}
// File: @openzeppelin\contracts\math\SafeMath.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryDiv}.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
// File: @openzeppelin\contracts\token\ERC20\IERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: @openzeppelin\contracts\utils\Address.sol
pragma solidity >=0.6.2 <0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin\contracts\token\ERC20\SafeERC20.sol
pragma solidity >=0.6.0 <0.8.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using SafeMath for uint256;
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
// solhint-disable-next-line max-line-length
require((value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).add(value);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) { // Return data is optional
// solhint-disable-next-line max-line-length
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// File: contracts\BaseRewardPool.sol
pragma solidity 0.6.12;
/**
*Submitted for verification at Etherscan.io on 2020-07-17
*/
/*
____ __ __ __ _
/ __/__ __ ___ / /_ / / ___ / /_ (_)__ __
_\ \ / // // _ \/ __// _ \/ -_)/ __// / \ \ /
/___/ \_, //_//_/\__//_//_/\__/ \__//_/ /_\_\
/___/
* Synthetix: BaseRewardPool.sol
*
* Docs: https://docs.synthetix.io/
*
*
* MIT License
* ===========
*
* Copyright (c) 2020 Synthetix
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*/
contract BaseRewardPool {
using SafeMath for uint256;
using SafeERC20 for IERC20;
IERC20 public rewardToken;
IERC20 public stakingToken;
uint256 public constant duration = 7 days;
address public operator;
address public rewardManager;
uint256 public pid;
uint256 public periodFinish = 0;
uint256 public rewardRate = 0;
uint256 public lastUpdateTime;
uint256 public rewardPerTokenStored;
uint256 public queuedRewards = 0;
uint256 public currentRewards = 0;
uint256 public historicalRewards = 0;
uint256 public constant newRewardRatio = 830;
uint256 private _totalSupply;
mapping(address => uint256) public userRewardPerTokenPaid;
mapping(address => uint256) public rewards;
mapping(address => uint256) private _balances;
address[] public extraRewards;
event RewardAdded(uint256 reward);
event Staked(address indexed user, uint256 amount);
event Withdrawn(address indexed user, uint256 amount);
event RewardPaid(address indexed user, uint256 reward);
constructor(
uint256 pid_,
address stakingToken_,
address rewardToken_,
address operator_,
address rewardManager_
) public {
pid = pid_;
stakingToken = IERC20(stakingToken_);
rewardToken = IERC20(rewardToken_);
operator = operator_;
rewardManager = rewardManager_;
}
function totalSupply() public view returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
function extraRewardsLength() external view returns (uint256) {
return extraRewards.length;
}
function addExtraReward(address _reward) external returns(bool){
require(msg.sender == rewardManager, "!authorized");
require(_reward != address(0),"!reward setting");
extraRewards.push(_reward);
return true;
}
function clearExtraRewards() external{
require(msg.sender == rewardManager, "!authorized");
delete extraRewards;
}
modifier updateReward(address account) {
rewardPerTokenStored = rewardPerToken();
lastUpdateTime = lastTimeRewardApplicable();
if (account != address(0)) {
rewards[account] = earned(account);
userRewardPerTokenPaid[account] = rewardPerTokenStored;
}
_;
}
function lastTimeRewardApplicable() public view returns (uint256) {
return MathUtil.min(block.timestamp, periodFinish);
}
function rewardPerToken() public view returns (uint256) {
if (totalSupply() == 0) {
return rewardPerTokenStored;
}
return
rewardPerTokenStored.add(
lastTimeRewardApplicable()
.sub(lastUpdateTime)
.mul(rewardRate)
.mul(1e18)
.div(totalSupply())
);
}
function earned(address account) public view returns (uint256) {
return
balanceOf(account)
.mul(rewardPerToken().sub(userRewardPerTokenPaid[account]))
.div(1e18)
.add(rewards[account]);
}
function stake(uint256 _amount)
public
updateReward(msg.sender)
returns(bool)
{
require(_amount > 0, 'RewardPool : Cannot stake 0');
//also stake to linked rewards
for(uint i=0; i < extraRewards.length; i++){
IRewards(extraRewards[i]).stake(msg.sender, _amount);
}
_totalSupply = _totalSupply.add(_amount);
_balances[msg.sender] = _balances[msg.sender].add(_amount);
stakingToken.safeTransferFrom(msg.sender, address(this), _amount);
emit Staked(msg.sender, _amount);
return true;
}
function stakeAll() external returns(bool){
uint256 balance = stakingToken.balanceOf(msg.sender);
stake(balance);
return true;
}
function stakeFor(address _for, uint256 _amount)
public
updateReward(_for)
returns(bool)
{
require(_amount > 0, 'RewardPool : Cannot stake 0');
//also stake to linked rewards
for(uint i=0; i < extraRewards.length; i++){
IRewards(extraRewards[i]).stake(_for, _amount);
}
//give to _for
_totalSupply = _totalSupply.add(_amount);
_balances[_for] = _balances[_for].add(_amount);
//take away from sender
stakingToken.safeTransferFrom(msg.sender, address(this), _amount);
emit Staked(_for, _amount);
return true;
}
function withdraw(uint256 amount, bool claim)
public
updateReward(msg.sender)
returns(bool)
{
require(amount > 0, 'RewardPool : Cannot withdraw 0');
//also withdraw from linked rewards
for(uint i=0; i < extraRewards.length; i++){
IRewards(extraRewards[i]).withdraw(msg.sender, amount);
}
_totalSupply = _totalSupply.sub(amount);
_balances[msg.sender] = _balances[msg.sender].sub(amount);
stakingToken.safeTransfer(msg.sender, amount);
emit Withdrawn(msg.sender, amount);
if(claim){
getReward(msg.sender,true);
}
return true;
}
function withdrawAll(bool claim) external{
withdraw(_balances[msg.sender],claim);
}
function withdrawAndUnwrap(uint256 amount, bool claim) public updateReward(msg.sender) returns(bool){
//also withdraw from linked rewards
for(uint i=0; i < extraRewards.length; i++){
IRewards(extraRewards[i]).withdraw(msg.sender, amount);
}
_totalSupply = _totalSupply.sub(amount);
_balances[msg.sender] = _balances[msg.sender].sub(amount);
//tell operator to withdraw from here directly to user
IDeposit(operator).withdrawTo(pid,amount,msg.sender);
emit Withdrawn(msg.sender, amount);
//get rewards too
if(claim){
getReward(msg.sender,true);
}
return true;
}
function withdrawAllAndUnwrap(bool claim) external{
withdrawAndUnwrap(_balances[msg.sender],claim);
}
function getReward(address _account, bool _claimExtras) public updateReward(_account) returns(bool){
uint256 reward = earned(_account);
if (reward > 0) {
rewards[_account] = 0;
rewardToken.safeTransfer(_account, reward);
IDeposit(operator).rewardClaimed(pid, _account, reward);
emit RewardPaid(_account, reward);
}
//also get rewards from linked rewards
if(_claimExtras){
for(uint i=0; i < extraRewards.length; i++){
IRewards(extraRewards[i]).getReward(_account);
}
}
return true;
}
function getReward() external returns(bool){
getReward(msg.sender,true);
return true;
}
function donate(uint256 _amount) external returns(bool){
IERC20(rewardToken).safeTransferFrom(msg.sender, address(this), _amount);
queuedRewards = queuedRewards.add(_amount);
}
function queueNewRewards(uint256 _rewards) external returns(bool){
require(msg.sender == operator, "!authorized");
_rewards = _rewards.add(queuedRewards);
if (block.timestamp >= periodFinish) {
notifyRewardAmount(_rewards);
queuedRewards = 0;
return true;
}
//et = now - (finish-duration)
uint256 elapsedTime = block.timestamp.sub(periodFinish.sub(duration));
//current at now: rewardRate * elapsedTime
uint256 currentAtNow = rewardRate * elapsedTime;
uint256 queuedRatio = currentAtNow.mul(1000).div(_rewards);
//uint256 queuedRatio = currentRewards.mul(1000).div(_rewards);
if(queuedRatio < newRewardRatio){
notifyRewardAmount(_rewards);
queuedRewards = 0;
}else{
queuedRewards = _rewards;
}
return true;
}
function notifyRewardAmount(uint256 reward)
internal
updateReward(address(0))
{
historicalRewards = historicalRewards.add(reward);
if (block.timestamp >= periodFinish) {
rewardRate = reward.div(duration);
} else {
uint256 remaining = periodFinish.sub(block.timestamp);
uint256 leftover = remaining.mul(rewardRate);
reward = reward.add(leftover);
rewardRate = reward.div(duration);
}
currentRewards = reward;
lastUpdateTime = block.timestamp;
periodFinish = block.timestamp.add(duration);
emit RewardAdded(reward);
}
} | [{"inputs":[{"internalType":"uint256","name":"pid_","type":"uint256"},{"internalType":"address","name":"stakingToken_","type":"address"},{"internalType":"address","name":"rewardToken_","type":"address"},{"internalType":"address","name":"operator_","type":"address"},{"internalType":"address","name":"rewardManager_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"reward","type":"uint256"}],"name":"RewardAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"reward","type":"uint256"}],"name":"RewardPaid","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Staked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrawn","type":"event"},{"inputs":[{"internalType":"address","name":"_reward","type":"address"}],"name":"addExtraReward","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"clearExtraRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"currentRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"donate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"duration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"earned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"extraRewards","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"extraRewardsLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReward","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"},{"internalType":"bool","name":"_claimExtras","type":"bool"}],"name":"getReward","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"historicalRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastTimeRewardApplicable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastUpdateTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"newRewardRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"periodFinish","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pid","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_rewards","type":"uint256"}],"name":"queueNewRewards","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"queuedRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardManager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardPerToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardPerTokenStored","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardToken","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"rewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"stake","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakeAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_for","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"stakeFor","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakingToken","outputs":[{"internalType":"contract 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| v0.6.12+commit.27d51765 | true | 200 | 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000062b9c7356a2dc64a1969e19c23e4f579f9810aa7000000000000000000000000d533a949740bb3306d119cc777fa900ba034cd52000000000000000000000000f403c135812408bfbe8713b5a23a04b3d48aae31000000000000000000000000edccb35798fae4925718a43cc608ae136208aa8d | Default | MIT | false | ipfs://c2587b5a77d7a7f733569d1f0dd4c08f00e3e34db8828f410842bfa6d54215fe | ||
NFTCollection | 0xeae26fcc767c4bc7ecd7abbb09ae2e4aec91fcdc | Solidity | // File: contracts/NFTCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./interfaces/internal/INFTCollectionInitializer.sol";
import "./interfaces/standards/royalties/IGetRoyalties.sol";
import "./interfaces/standards/royalties/ITokenCreator.sol";
import "./interfaces/standards/royalties/IGetFees.sol";
import "./interfaces/standards/royalties/IRoyaltyInfo.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./libraries/AddressLibrary.sol";
import "./mixins/collections/SequentialMintCollection.sol";
import "./mixins/collections/CollectionRoyalties.sol";
import "./mixins/shared/ContractFactory.sol";
/**
* @title A collection of NFTs by a single creator.
* @notice All NFTs from this contract are minted by the same creator.
* A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
* @author batu-inal & HardlyDifficult
*/
contract NFTCollection is
INFTCollectionInitializer,
IGetRoyalties,
IGetFees,
IRoyaltyInfo,
ITokenCreator,
ContractFactory,
Initializable,
ERC165Upgradeable,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
SequentialMintCollection,
CollectionRoyalties
{
using AddressLibrary for address;
using AddressUpgradeable for address;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @notice Stores hashes minted to prevent duplicates.
* @dev 0 means not yet minted, set to 1 when minted.
* For why using uint is better than using bool here:
* github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
*/
mapping(string => uint256) private cidToMinted;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
/**
* @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
* @param baseURI The new base URI to use.
*/
event BaseURIUpdated(string baseURI);
/**
* @notice Emitted when a new NFT is minted.
* @param creator The address of the collection owner at this time this NFT was minted.
* @param tokenId The tokenId of the newly minted NFT.
* @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
* @param tokenCID The actual CID of the newly minted NFT.
*/
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
/**
* @notice Emitted when the payment address for creator royalties is set.
* @param fromPaymentAddress The original address used for royalty payments.
* @param toPaymentAddress The new address used for royalty payments.
* @param tokenId The NFT which had the royalty payment address updated.
*/
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory)
ContractFactory(_contractFactory) // solhint-disable-next-line no-empty-blocks
{}
/**
* @notice Called by the contract factory on creation.
* @param _creator The creator of this collection.
* @param _name The collection's `name`.
* @param _symbol The collection's `symbol`.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol
) external initializer onlyContractFactory {
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator, 0);
}
/**
* @notice Allows the creator to burn a specific token if they currently own the NFT.
* @param tokenId The ID of the NFT to burn.
* @dev The function here asserts `onlyOwner` while the super confirms ownership.
*/
function burn(uint256 tokenId) public override onlyOwner {
super.burn(tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mint(string calldata tokenCID) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddress(string calldata tokenCID, address payable tokenCreatorPaymentAddress)
public
returns (uint256 tokenId)
{
require(tokenCreatorPaymentAddress != address(0), "NFTCollection: tokenCreatorPaymentAddress is required");
tokenId = _mint(tokenCID);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddressAndApprove(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactory(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the collection creator to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
* @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
*/
function selfDestruct() external onlyOwner {
_selfDestruct();
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
* @param baseURIOverride The new base URI to use for all NFTs in this collection.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* This max may be more than the final `totalSupply` if 1 or more tokens were burned.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
_updateMaxTokenId(_maxTokenId);
}
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
super._burn(tokenId);
}
function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
require(bytes(tokenCID).length != 0, "NFTCollection: tokenCID is required");
require(cidToMinted[tokenCID] == 0, "NFTCollection: NFT was already minted");
// Number of tokens cannot realistically overflow 32 bits.
tokenId = ++latestTokenId;
require(maxTokenId == 0 || tokenId <= maxTokenId, "NFTCollection: Max token count has already been minted");
cidToMinted[tokenCID] = 1;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId);
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
/**
* @notice The base URI used for all NFTs in this collection.
* @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
* e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
* @return uri The base URI used by this collection.
*/
function baseURI() external view returns (string memory uri) {
uri = _baseURI();
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
* @param tokenCID The CID to check for.
* @return hasBeenMinted True if the creator has already minted an NFT with this CID.
*/
function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
hasBeenMinted = cidToMinted[tokenCID] != 0;
}
/**
* @inheritdoc CollectionRoyalties
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
override
returns (address payable creatorPaymentAddress)
{
creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(bytes4 interfaceId)
public
view
override(ERC165Upgradeable, ERC721Upgradeable, CollectionRoyalties)
returns (bool interfaceSupported)
{
// This is a no-op function required to avoid compile errors.
interfaceSupported = super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC721MetadataUpgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
require(_exists(tokenId), "NFTCollection: URI query for nonexistent token");
uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
}
function _baseURI() internal view override returns (string memory uri) {
uri = baseURI_;
if (bytes(uri).length == 0) {
uri = "ipfs://";
}
}
}
// File: contracts/libraries/AddressLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
address target;
bytes callData;
}
/**
* @title A library for address helpers not already covered by the OZ library.
* @author batu-inal & HardlyDifficult
*/
library AddressLibrary {
using AddressUpgradeable for address;
using AddressUpgradeable for address payable;
/**
* @notice Calls an external contract with arbitrary data and parse the return value into an address.
* @param externalContract The address of the contract to call.
* @param callData The data to send to the contract.
* @return contractAddress The address of the contract returned by the call.
*/
function callAndReturnContractAddress(address externalContract, bytes calldata callData)
internal
returns (address payable contractAddress)
{
bytes memory returnData = externalContract.functionCall(callData);
contractAddress = abi.decode(returnData, (address));
require(contractAddress.isContract(), "InternalProxyCall: did not return a contract");
}
function callAndReturnContractAddress(CallWithoutValue calldata call)
internal
returns (address payable contractAddress)
{
contractAddress = callAndReturnContractAddress(call.target, call.callData);
}
}
// File: contracts/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @author batu-inal & HardlyDifficult
*/
interface INFTCollectionInitializer {
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external;
}
// File: contracts/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
* @author batu-inal & HardlyDifficult
*/
abstract contract SequentialMintCollection is ITokenCreator, Initializable, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
* @return The collection's creator/owner address.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
* @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
*/
uint32 public latestTokenId;
/**
* @notice The max tokenId which can be minted.
* @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
* @return The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
/****** End of storage ******/
/**
* @notice Emitted when the max tokenId supported by this collection is updated.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
/**
* @notice Emitted when this collection is self destructed by the creator/owner/admin.
* @param admin The account which requested this contract be self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyOwner() {
require(msg.sender == owner, "SequentialMintCollection: Caller is not owner");
_;
}
function _initializeSequentialMintCollection(address payable _creator, uint32 _maxTokenId) internal onlyInitializing {
owner = _creator;
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
require(totalSupply() == 0, "SequentialMintCollection: Any NFTs minted must be burned first");
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
require(_maxTokenId != 0, "SequentialMintCollection: Max token ID may not be cleared");
require(maxTokenId == 0 || _maxTokenId < maxTokenId, "SequentialMintCollection: Max token ID may not increase");
require(latestTokenId <= _maxTokenId, "SequentialMintCollection: Max token ID must be >= last mint");
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @inheritdoc ITokenCreator
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function tokenCreator(
uint256 /* tokenId */
) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Returns the total amount of tokens stored by the contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// File: contracts/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
* @author batu-inal & HardlyDifficult
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @inheritdoc IGetFees
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @inheritdoc IGetFees
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function getFeeBps(
uint256 /* tokenId */
) external pure returns (uint256[] memory royaltiesInBasisPoints) {
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @inheritdoc IGetRoyalties
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints)
{
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the creator proceeds/royalties for the collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creatorPaymentAddress The address to which royalties should be paid.
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
virtual
returns (address payable creatorPaymentAddress);
/**
* @inheritdoc IRoyaltyInfo
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount)
{
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc IERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
super.supportsInterface(interfaceId));
}
}
// File: contracts/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
/**
* @title Stores a reference to the factory which is used to create contract proxies.
* @author batu-inal & HardlyDifficult
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
* @return The factory contract address.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
require(msg.sender == contractFactory, "ContractFactory: Caller is not the factory");
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
require(_contractFactory.isContract(), "ContractFactory: Factory is not a contract");
contractFactory = _contractFactory;
}
}
// File: contracts/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
/**
* @notice Get the creator royalties to be sent.
* @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
/**
* @notice Returns the creator of this NFT collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creator The creator of this collection.
*/
function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// File: contracts/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
/**
* @notice Get the recipient addresses to which creator royalties should be sent.
* @dev The expected royalty amounts are communicated with `getFeeBps`.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
/**
* @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
* @dev The expected recipients are communicated with `getFeeRecipients`.
* @param tokenId The ID of the NFT to get royalties for.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/**
* @notice Get the creator royalties to be sent.
* @param tokenId The ID of the NFT to get royalties for.
* @param salePrice The total price of the sale.
* @return receiver The address to which royalties should be sent.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
* initialization step. This is essential to configure modules that are added through upgrades and that require
* initialization.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/mixins/shared/Constants.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10_000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
// File: contracts-exposed/NFTCollection.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../contracts/NFTCollection.sol";
contract $NFTCollection is NFTCollection {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor(address _contractFactory) NFTCollection(_contractFactory) {}
function $_burn(uint256 tokenId) external {
return super._burn(tokenId);
}
function $_baseURI() external view returns (string memory) {
return super._baseURI();
}
function $_initializeSequentialMintCollection(address payable _creator,uint32 _maxTokenId) external {
return super._initializeSequentialMintCollection(_creator,_maxTokenId);
}
function $_selfDestruct() external {
return super._selfDestruct();
}
function $_updateMaxTokenId(uint32 _maxTokenId) external {
return super._updateMaxTokenId(_maxTokenId);
}
function $__ERC721Burnable_init() external {
return super.__ERC721Burnable_init();
}
function $__ERC721Burnable_init_unchained() external {
return super.__ERC721Burnable_init_unchained();
}
function $__ERC721_init(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init(name_,symbol_);
}
function $__ERC721_init_unchained(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init_unchained(name_,symbol_);
}
function $_safeTransfer(address from,address to,uint256 tokenId,bytes calldata data) external {
return super._safeTransfer(from,to,tokenId,data);
}
function $_exists(uint256 tokenId) external view returns (bool) {
return super._exists(tokenId);
}
function $_isApprovedOrOwner(address spender,uint256 tokenId) external view returns (bool) {
return super._isApprovedOrOwner(spender,tokenId);
}
function $_safeMint(address to,uint256 tokenId) external {
return super._safeMint(to,tokenId);
}
function $_safeMint(address to,uint256 tokenId,bytes calldata data) external {
return super._safeMint(to,tokenId,data);
}
function $_mint(address to,uint256 tokenId) external {
return super._mint(to,tokenId);
}
function $_transfer(address from,address to,uint256 tokenId) external {
return super._transfer(from,to,tokenId);
}
function $_approve(address to,uint256 tokenId) external {
return super._approve(to,tokenId);
}
function $_setApprovalForAll(address owner,address operator,bool approved) external {
return super._setApprovalForAll(owner,operator,approved);
}
function $_requireMinted(uint256 tokenId) external view {
return super._requireMinted(tokenId);
}
function $_beforeTokenTransfer(address from,address to,uint256 tokenId) external {
return super._beforeTokenTransfer(from,to,tokenId);
}
function $_afterTokenTransfer(address from,address to,uint256 tokenId) external {
return super._afterTokenTransfer(from,to,tokenId);
}
function $__ERC165_init() external {
return super.__ERC165_init();
}
function $__ERC165_init_unchained() external {
return super.__ERC165_init_unchained();
}
function $__Context_init() external {
return super.__Context_init();
}
function $__Context_init_unchained() external {
return super.__Context_init_unchained();
}
function $_msgSender() external view returns (address) {
return super._msgSender();
}
function $_msgData() external view returns (bytes memory) {
return super._msgData();
}
function $_disableInitializers() external {
return super._disableInitializers();
}
receive() external payable {}
}
// File: contracts-exposed/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/interfaces/internal/INFTCollectionInitializer.sol";
abstract contract $INFTCollectionInitializer is INFTCollectionInitializer {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IGetFees.sol";
abstract contract $IGetFees is IGetFees {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IGetRoyalties.sol";
abstract contract $IGetRoyalties is IGetRoyalties {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IRoyaltyInfo.sol";
abstract contract $IRoyaltyInfo is IRoyaltyInfo {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/ITokenCreator.sol";
abstract contract $ITokenCreator is ITokenCreator {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/libraries/AddressLibrary.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../contracts/libraries/AddressLibrary.sol";
contract $AddressLibrary {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
event $callAndReturnContractAddress_address_bytes_Returned(address payable arg0);
event $callAndReturnContractAddress_CallWithoutValue_Returned(address payable arg0);
constructor() {}
function $callAndReturnContractAddress(address externalContract,bytes calldata callData) external payable returns (address payable) {
(address payable ret0) = AddressLibrary.callAndReturnContractAddress(externalContract,callData);
emit $callAndReturnContractAddress_address_bytes_Returned(ret0);
return (ret0);
}
function $callAndReturnContractAddress(CallWithoutValue calldata call) external payable returns (address payable) {
(address payable ret0) = AddressLibrary.callAndReturnContractAddress(call);
emit $callAndReturnContractAddress_CallWithoutValue_Returned(ret0);
return (ret0);
}
receive() external payable {}
}
// File: contracts-exposed/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/collections/CollectionRoyalties.sol";
abstract contract $CollectionRoyalties is CollectionRoyalties {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
function $__ERC165_init() external {
return super.__ERC165_init();
}
function $__ERC165_init_unchained() external {
return super.__ERC165_init_unchained();
}
function $_disableInitializers() external {
return super._disableInitializers();
}
receive() external payable {}
}
// File: contracts-exposed/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/collections/SequentialMintCollection.sol";
contract $SequentialMintCollection is SequentialMintCollection {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
function $_initializeSequentialMintCollection(address payable _creator,uint32 _maxTokenId) external {
return super._initializeSequentialMintCollection(_creator,_maxTokenId);
}
function $_selfDestruct() external {
return super._selfDestruct();
}
function $_updateMaxTokenId(uint32 _maxTokenId) external {
return super._updateMaxTokenId(_maxTokenId);
}
function $_burn(uint256 tokenId) external {
return super._burn(tokenId);
}
function $__ERC721Burnable_init() external {
return super.__ERC721Burnable_init();
}
function $__ERC721Burnable_init_unchained() external {
return super.__ERC721Burnable_init_unchained();
}
function $__ERC721_init(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init(name_,symbol_);
}
function $__ERC721_init_unchained(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init_unchained(name_,symbol_);
}
function $_baseURI() external view returns (string memory) {
return super._baseURI();
}
function $_safeTransfer(address from,address to,uint256 tokenId,bytes calldata data) external {
return super._safeTransfer(from,to,tokenId,data);
}
function $_exists(uint256 tokenId) external view returns (bool) {
return super._exists(tokenId);
}
function $_isApprovedOrOwner(address spender,uint256 tokenId) external view returns (bool) {
return super._isApprovedOrOwner(spender,tokenId);
}
function $_safeMint(address to,uint256 tokenId) external {
return super._safeMint(to,tokenId);
}
function $_safeMint(address to,uint256 tokenId,bytes calldata data) external {
return super._safeMint(to,tokenId,data);
}
function $_mint(address to,uint256 tokenId) external {
return super._mint(to,tokenId);
}
function $_transfer(address from,address to,uint256 tokenId) external {
return super._transfer(from,to,tokenId);
}
function $_approve(address to,uint256 tokenId) external {
return super._approve(to,tokenId);
}
function $_setApprovalForAll(address owner,address operator,bool approved) external {
return super._setApprovalForAll(owner,operator,approved);
}
function $_requireMinted(uint256 tokenId) external view {
return super._requireMinted(tokenId);
}
function $_beforeTokenTransfer(address from,address to,uint256 tokenId) external {
return super._beforeTokenTransfer(from,to,tokenId);
}
function $_afterTokenTransfer(address from,address to,uint256 tokenId) external {
return super._afterTokenTransfer(from,to,tokenId);
}
function $__ERC165_init() external {
return super.__ERC165_init();
}
function $__ERC165_init_unchained() external {
return super.__ERC165_init_unchained();
}
function $__Context_init() external {
return super.__Context_init();
}
function $__Context_init_unchained() external {
return super.__Context_init_unchained();
}
function $_msgSender() external view returns (address) {
return super._msgSender();
}
function $_msgData() external view returns (bytes memory) {
return super._msgData();
}
function $_disableInitializers() external {
return super._disableInitializers();
}
receive() external payable {}
}
// File: contracts-exposed/mixins/shared/Constants.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/shared/Constants.sol";
// File: contracts-exposed/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/shared/ContractFactory.sol";
contract $ContractFactory is ContractFactory {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor(address _contractFactory) ContractFactory(_contractFactory) {}
receive() external payable {}
}
| 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| v0.8.17+commit.8df45f5f | true | 1,337 | 000000000000000000000000612e2daddc89d91409e40f946f9f7cfe422e777e | Default | false | ||||
Forwarder | 0x64b5fb26330a9fe1a25a6aaf1cbe1f6cedc9d052 | Solidity | // File: contracts/Forwarder.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.10;
import '@openzeppelin/contracts/token/ERC1155/IERC1155.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol';
import './ERC20Interface.sol';
import './TransferHelper.sol';
import './IForwarder.sol';
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder is IERC721Receiver, ERC1155Receiver, IForwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
bool public autoFlush721 = true;
bool public autoFlush1155 = true;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(
address _parentAddress,
bool _autoFlush721,
bool _autoFlush1155
) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
// set whether we want to automatically flush erc721/erc1155 tokens or not
autoFlush721 = _autoFlush721;
autoFlush1155 = _autoFlush1155;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* @inheritdoc IForwarder
*/
function setAutoFlush721(bool autoFlush)
external
virtual
override
onlyParent
{
autoFlush721 = autoFlush;
}
/**
* @inheritdoc IForwarder
*/
function setAutoFlush1155(bool autoFlush)
external
virtual
override
onlyParent
{
autoFlush1155 = autoFlush;
}
/**
* ERC721 standard callback function for when a ERC721 is transfered. The forwarder will send the nft
* to the base wallet once the nft contract invokes this method after transfering the nft.
*
* @param _operator The address which called `safeTransferFrom` function
* @param _from The address of the sender
* @param _tokenId The token id of the nft
* @param data Additional data with no specified format, sent in call to `_to`
*/
function onERC721Received(
address _operator,
address _from,
uint256 _tokenId,
bytes memory data
) external virtual override returns (bytes4) {
if (autoFlush721) {
IERC721 instance = IERC721(msg.sender);
require(
instance.supportsInterface(type(IERC721).interfaceId),
'The caller does not support the ERC721 interface'
);
// this won't work for ERC721 re-entrancy
instance.safeTransferFrom(address(this), parentAddress, _tokenId, data);
}
return this.onERC721Received.selector;
}
function callFromParent(
address target,
uint256 value,
bytes calldata data
) external onlyParent returns (bytes memory) {
(bool success, bytes memory returnedData) = target.call{ value: value }(
data
);
require(success, 'Parent call execution failed');
return returnedData;
}
/**
* @inheritdoc IERC1155Receiver
*/
function onERC1155Received(
address _operator,
address _from,
uint256 id,
uint256 value,
bytes calldata data
) external virtual override returns (bytes4) {
IERC1155 instance = IERC1155(msg.sender);
require(
instance.supportsInterface(type(IERC1155).interfaceId),
'The caller does not support the IERC1155 interface'
);
if (autoFlush1155) {
instance.safeTransferFrom(address(this), parentAddress, id, value, data);
}
return this.onERC1155Received.selector;
}
/**
* @inheritdoc IERC1155Receiver
*/
function onERC1155BatchReceived(
address _operator,
address _from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external virtual override returns (bytes4) {
IERC1155 instance = IERC1155(msg.sender);
require(
instance.supportsInterface(type(IERC1155).interfaceId),
'The caller does not support the IERC1155 interface'
);
if (autoFlush1155) {
instance.safeBatchTransferFrom(
address(this),
parentAddress,
ids,
values,
data
);
}
return this.onERC1155BatchReceived.selector;
}
/**
* @inheritdoc IForwarder
*/
function flushTokens(address tokenContractAddress)
external
virtual
override
onlyParent
{
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* @inheritdoc IForwarder
*/
function flushERC721Token(address tokenContractAddress, uint256 tokenId)
external
virtual
override
onlyParent
{
IERC721 instance = IERC721(tokenContractAddress);
require(
instance.supportsInterface(type(IERC721).interfaceId),
'The tokenContractAddress does not support the ERC721 interface'
);
address ownerAddress = instance.ownerOf(tokenId);
instance.transferFrom(ownerAddress, parentAddress, tokenId);
}
/**
* @inheritdoc IForwarder
*/
function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)
external
virtual
override
onlyParent
{
IERC1155 instance = IERC1155(tokenContractAddress);
require(
instance.supportsInterface(type(IERC1155).interfaceId),
'The caller does not support the IERC1155 interface'
);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress, tokenId);
instance.safeTransferFrom(
forwarderAddress,
parentAddress,
tokenId,
forwarderBalance,
''
);
}
/**
* @inheritdoc IForwarder
*/
function batchFlushERC1155Tokens(
address tokenContractAddress,
uint256[] calldata tokenIds
) external virtual override onlyParent {
IERC1155 instance = IERC1155(tokenContractAddress);
require(
instance.supportsInterface(type(IERC1155).interfaceId),
'The caller does not support the IERC1155 interface'
);
address forwarderAddress = address(this);
uint256[] memory amounts = new uint256[](tokenIds.length);
for (uint256 i = 0; i < tokenIds.length; i++) {
amounts[i] = instance.balanceOf(forwarderAddress, tokenIds[i]);
}
instance.safeBatchTransferFrom(
forwarderAddress,
parentAddress,
tokenIds,
amounts,
''
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
/**
* @inheritdoc IERC165
*/
function supportsInterface(bytes4 interfaceId)
public
virtual
override(ERC1155Receiver, IERC165)
view
returns (bool)
{
return
interfaceId == type(IForwarder).interfaceId ||
super.supportsInterface(interfaceId);
}
}
// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts/token/ERC721/IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";
/**
* @dev _Available since v3.1._
*/
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
}
}
// File: contracts/ERC20Interface.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.10;
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// File: contracts/TransferHelper.sol
// SPDX-License-Identifier: GPL-3.0-or-later
// source: https://github.com/Uniswap/solidity-lib/blob/master/contracts/libraries/TransferHelper.sol
pragma solidity 0.8.10;
import '@openzeppelin/contracts/utils/Address.sol';
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(
abi.encodeWithSelector(0xa9059cbb, to, value)
);
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory returndata) = token.call(
abi.encodeWithSelector(0x23b872dd, from, to, value)
);
Address.verifyCallResult(
success,
returndata,
'TransferHelper::transferFrom: transferFrom failed'
);
}
}
// File: contracts/IForwarder.sol
pragma solidity ^0.8.0;
import '@openzeppelin/contracts/utils/introspection/IERC165.sol';
interface IForwarder is IERC165 {
/**
* Sets the autoflush721 parameter.
*
* @param autoFlush whether to autoflush erc721 tokens
*/
function setAutoFlush721(bool autoFlush) external;
/**
* Sets the autoflush1155 parameter.
*
* @param autoFlush whether to autoflush erc1155 tokens
*/
function setAutoFlush1155(bool autoFlush) external;
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
*
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external;
/**
* Execute a nft transfer from the forwarder to the parent address
*
* @param tokenContractAddress the address of the ERC721 NFT contract
* @param tokenId The token id of the nft
*/
function flushERC721Token(address tokenContractAddress, uint256 tokenId)
external;
/**
* Execute a nft transfer from the forwarder to the parent address.
*
* @param tokenContractAddress the address of the ERC1155 NFT contract
* @param tokenId The token id of the nft
*/
function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)
external;
/**
* Execute a batch nft transfer from the forwarder to the parent address.
*
* @param tokenContractAddress the address of the ERC1155 NFT contract
* @param tokenIds The token ids of the nfts
*/
function batchFlushERC1155Tokens(
address tokenContractAddress,
uint256[] calldata tokenIds
) external;
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
@dev Handles the receipt of a single ERC1155 token type. This function is
called at the end of a `safeTransferFrom` after the balance has been updated.
To accept the transfer, this must return
`bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
(i.e. 0xf23a6e61, or its own function selector).
@param operator The address which initiated the transfer (i.e. msg.sender)
@param from The address which previously owned the token
@param id The ID of the token being transferred
@param value The amount of tokens being transferred
@param data Additional data with no specified format
@return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
/**
@dev Handles the receipt of a multiple ERC1155 token types. This function
is called at the end of a `safeBatchTransferFrom` after the balances have
been updated. To accept the transfer(s), this must return
`bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
(i.e. 0xbc197c81, or its own function selector).
@param operator The address which initiated the batch transfer (i.e. msg.sender)
@param from The address which previously owned the token
@param ids An array containing ids of each token being transferred (order and length must match values array)
@param values An array containing amounts of each token being transferred (order and length must match ids array)
@param data Additional data with no specified format
@return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
| [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"autoFlush1155","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"autoFlush721","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"batchFlushERC1155Tokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"callFromParent","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"flushERC1155Tokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"flushERC721Token","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"},{"internalType":"bool","name":"_autoFlush721","type":"bool"},{"internalType":"bool","name":"_autoFlush1155","type":"bool"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_operator","type":"address"},{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"internalType":"uint256[]","name":"values","type":"uint256[]"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"onERC1155BatchReceived","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_operator","type":"address"},{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"onERC1155Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_operator","type":"address"},{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"autoFlush","type":"bool"}],"name":"setAutoFlush1155","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"autoFlush","type":"bool"}],"name":"setAutoFlush721","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.10+commit.fc410830 | false | 200 | Default | false | |||||
OwnableDelegateProxy | 0x4e3c36feaba46e7100cd99e58bdd192323219b74 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
NFTCollection | 0x4e94042b6b23b147a854f7345aa3dafd0a246b79 | Solidity | // File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721Upgradeable.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256, /* firstTokenId */
uint256 batchSize
) internal virtual {
if (batchSize > 1) {
if (from != address(0)) {
_balances[from] -= batchSize;
}
if (to != address(0)) {
_balances[to] += batchSize;
}
}
}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual {}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUpgradeable {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/MathUpgradeable.sol";
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = MathUpgradeable.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, MathUpgradeable.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// File: contracts/collectionTemplates/NFTCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../interfaces/internal/INFTCollectionInitializer.sol";
import "../libraries/AddressLibrary.sol";
import "../mixins/collections/CollectionRoyalties.sol";
import "../mixins/collections/NFTCollectionType.sol";
import "../mixins/collections/SequentialMintCollection.sol";
import "../mixins/collections/TokenLimitedCollection.sol";
import "../mixins/shared/ContractFactory.sol";
error NFTCollection_Max_Token_Id_Has_Already_Been_Minted(uint256 maxTokenId);
error NFTCollection_Token_CID_Already_Minted();
error NFTCollection_Token_CID_Required();
error NFTCollection_Token_Creator_Payment_Address_Required();
/**
* @title A collection of 1:1 NFTs by a single creator.
* @notice A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
* @author batu-inal & HardlyDifficult
*/
contract NFTCollection is
INFTCollectionInitializer,
ContractFactory,
Initializable,
ERC165Upgradeable,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
NFTCollectionType,
SequentialMintCollection,
TokenLimitedCollection,
CollectionRoyalties
{
using AddressLibrary for address;
using AddressUpgradeable for address;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @notice Stores hashes minted to prevent duplicates.
* @dev 0 means not yet minted, set to 1 when minted.
* For why using uint is better than using bool here:
* github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
*/
mapping(string => uint256) private cidToMinted;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
/**
* @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
* @param baseURI The new base URI to use.
*/
event BaseURIUpdated(string baseURI);
/**
* @notice Emitted when a new NFT is minted.
* @param creator The address of the collection owner at this time this NFT was minted.
* @param tokenId The tokenId of the newly minted NFT.
* @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
* @param tokenCID The actual CID of the newly minted NFT.
*/
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
/**
* @notice Emitted when the payment address for creator royalties is set.
* @param fromPaymentAddress The original address used for royalty payments.
* @param toPaymentAddress The new address used for royalty payments.
* @param tokenId The NFT which had the royalty payment address updated.
*/
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory) ContractFactory(_contractFactory) NFTCollectionType(NFT_COLLECTION_TYPE) {
// The template will be initialized by the factory when it's registered for use.
}
/**
* @notice Called by the contract factory on creation.
* @param _creator The creator of this collection.
* @param _name The collection's `name`.
* @param _symbol The collection's `symbol`.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol
) external initializer onlyContractFactory {
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator);
// maxTokenId defaults to 0 but may be assigned later on.
}
/**
* @notice Mint an NFT defined by its metadata path.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mint(string calldata tokenCID) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddress(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress
) public returns (uint256 tokenId) {
if (tokenCreatorPaymentAddress == address(0)) {
revert NFTCollection_Token_Creator_Payment_Address_Required();
}
tokenId = _mint(tokenCID);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddressAndApprove(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactory(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the collection creator to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
* @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
*/
function selfDestruct() external onlyOwner {
_selfDestruct();
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
* @param baseURIOverride The new base URI to use for all NFTs in this collection.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* This max may be more than the final `totalSupply` if 1 or more tokens were burned.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
_updateMaxTokenId(_maxTokenId);
}
/**
* @inheritdoc ERC721Upgradeable
* @dev The function here asserts `onlyOwner` while the super confirms ownership.
*/
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) onlyOwner {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
super._burn(tokenId);
}
function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
if (bytes(tokenCID).length == 0) {
revert NFTCollection_Token_CID_Required();
}
if (cidToMinted[tokenCID] != 0) {
revert NFTCollection_Token_CID_Already_Minted();
}
// If the mint will exceed uint32, the addition here will overflow. But it's not realistic to mint that many tokens.
tokenId = ++latestTokenId;
if (maxTokenId != 0 && tokenId > maxTokenId) {
revert NFTCollection_Max_Token_Id_Has_Already_Been_Minted(maxTokenId);
}
cidToMinted[tokenCID] = 1;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId);
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
/**
* @notice The base URI used for all NFTs in this collection.
* @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
* e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
* @return uri The base URI used by this collection.
*/
function baseURI() external view returns (string memory uri) {
uri = _baseURI();
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
* @param tokenCID The CID to check for.
* @return hasBeenMinted True if the creator has already minted an NFT with this CID.
*/
function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
hasBeenMinted = cidToMinted[tokenCID] != 0;
}
/**
* @inheritdoc CollectionRoyalties
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view override returns (address payable creatorPaymentAddress) {
creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(
bytes4 interfaceId
)
public
view
override(ERC165Upgradeable, ERC721Upgradeable, NFTCollectionType, CollectionRoyalties)
returns (bool interfaceSupported)
{
interfaceSupported = super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC721MetadataUpgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
_requireMinted(tokenId);
uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
}
function _baseURI() internal view override returns (string memory uri) {
uri = baseURI_;
if (bytes(uri).length == 0) {
uri = "ipfs://";
}
}
}
// File: contracts/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @title Declares the interface for initializing an NFTCollection contract.
* @author batu-inal & HardlyDifficult
*/
interface INFTCollectionInitializer {
function initialize(address payable _creator, string memory _name, string memory _symbol) external;
}
// File: contracts/interfaces/internal/INFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @title Declares the type of the collection contract.
* @dev This interface is declared as an ERC-165 interface.
* @author reggieag
*/
interface INFTCollectionType {
function getNFTCollectionType() external view returns (string memory collectionType);
}
// File: contracts/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
/**
* @notice Get the recipient addresses to which creator royalties should be sent.
* @dev The expected royalty amounts are communicated with `getFeeBps`.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
/**
* @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
* @dev The expected recipients are communicated with `getFeeRecipients`.
* @param tokenId The ID of the NFT to get royalties for.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
/**
* @notice Get the creator royalties to be sent.
* @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/**
* @notice Get the creator royalties to be sent.
* @param tokenId The ID of the NFT to get royalties for.
* @param salePrice The total price of the sale.
* @return receiver The address to which royalties should be sent.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount);
}
// File: contracts/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
/**
* @notice Returns the creator of this NFT collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creator The creator of this collection.
*/
function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// File: contracts/libraries/AddressLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
address target;
bytes callData;
}
error AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(address addressReturned);
/**
* @title A library for address helpers not already covered by the OZ library.
* @author batu-inal & HardlyDifficult
*/
library AddressLibrary {
using AddressUpgradeable for address;
using AddressUpgradeable for address payable;
/**
* @notice Calls an external contract with arbitrary data and parse the return value into an address.
* @param externalContract The address of the contract to call.
* @param callData The data to send to the contract.
* @return contractAddress The address of the contract returned by the call.
*/
function callAndReturnContractAddress(
address externalContract,
bytes calldata callData
) internal returns (address payable contractAddress) {
bytes memory returnData = externalContract.functionCall(callData);
contractAddress = abi.decode(returnData, (address));
if (!contractAddress.isContract()) {
revert AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(contractAddress);
}
}
function callAndReturnContractAddress(
CallWithoutValue calldata call
) internal returns (address payable contractAddress) {
contractAddress = callAndReturnContractAddress(call.target, call.callData);
}
}
// File: contracts/libraries/ShortStrings.sol
// SPDX-License-Identifier: MIT
// Source: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/260e082/contracts/utils/ShortStrings.sol
// TODO: Swap out for the OZ library version once this has been published.
pragma solidity ^0.8.12;
type ShortString is bytes32;
/**
* @dev This library provides functions to convert short memory strings
* into a `ShortString` type that can be used as an immutable variable.
* Strings of arbitrary length can be optimized if they are short enough by
* the addition of a storage variable used as fallback.
*
* Usage example:
*
* ```solidity
* contract Named {
* using ShortStrings for *;
*
* ShortString private immutable _name;
* string private _nameFallback;
*
* constructor(string memory contractName) {
* _name = contractName.toShortStringWithFallback(_nameFallback);
* }
*
* function name() external view returns (string memory) {
* return _name.toStringWithFallback(_nameFallback);
* }
* }
* ```
*/
library ShortStrings {
error StringTooLong(string str);
/**
* @dev Encode a string of at most 31 chars into a `ShortString`.
*
* This will trigger a `StringTooLong` error is the input string is too long.
*/
function toShortString(string memory str) internal pure returns (ShortString) {
bytes memory bstr = bytes(str);
if (bstr.length > 31) {
revert StringTooLong(str);
}
return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
}
/**
* @dev Decode a `ShortString` back to a "normal" string.
*/
function toString(ShortString sstr) internal pure returns (string memory) {
uint256 len = length(sstr);
// using `new string(len)` would work locally but is not memory safe.
string memory str = new string(32);
/// @solidity memory-safe-assembly
assembly {
mstore(str, len)
mstore(add(str, 0x20), sstr)
}
return str;
}
/**
* @dev Return the length of a `ShortString`.
*/
function length(ShortString sstr) internal pure returns (uint256) {
return uint256(ShortString.unwrap(sstr)) & 0xFF;
}
}
// File: contracts/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
* @author batu-inal & HardlyDifficult
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @inheritdoc IGetFees
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @inheritdoc IGetFees
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function getFeeBps(uint256 /* tokenId */) external pure returns (uint256[] memory royaltiesInBasisPoints) {
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @inheritdoc IGetRoyalties
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the creator proceeds/royalties for the collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creatorPaymentAddress The address to which royalties should be paid.
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view virtual returns (address payable creatorPaymentAddress);
/**
* @inheritdoc IRoyaltyInfo
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc IERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
super.supportsInterface(interfaceId));
}
}
// File: contracts/mixins/collections/NFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../libraries/ShortStrings.sol";
import "../../interfaces/internal/INFTCollectionType.sol";
/**
* @title A mixin to add the NFTCollectionType interface to a contract.
* @author HardlyDifficult & reggieag
*/
abstract contract NFTCollectionType is INFTCollectionType, ERC165Upgradeable {
using ShortStrings for string;
using ShortStrings for ShortString;
ShortString private immutable _collectionTypeName;
constructor(string memory collectionTypeName) {
_collectionTypeName = collectionTypeName.toShortString();
}
/**
* @notice Returns a name of the type of collection this contract represents.
* @return collectionType The collection type.
*/
function getNFTCollectionType() external view returns (string memory collectionType) {
collectionType = _collectionTypeName.toString();
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = interfaceId == type(INFTCollectionType).interfaceId || super.supportsInterface(interfaceId);
}
}
// File: contracts/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
error SequentialMintCollection_Caller_Is_Not_Owner(address owner);
error SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(uint256 totalSupply);
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
* @author batu-inal & HardlyDifficult
*/
abstract contract SequentialMintCollection is ITokenCreator, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
* @return The collection's creator/owner address.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
* @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
*/
uint32 public latestTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
// 32-bits free space
/****** End of storage ******/
/**
* @notice Emitted when this collection is self destructed by the creator/owner/admin.
* @param admin The account which requested this contract be self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyOwner() {
if (msg.sender != owner) {
revert SequentialMintCollection_Caller_Is_Not_Owner(owner);
}
_;
}
function _initializeSequentialMintCollection(address payable _creator) internal {
owner = _creator;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
if (totalSupply() != 0) {
revert SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(totalSupply());
}
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @inheritdoc ITokenCreator
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function tokenCreator(uint256 /* tokenId */) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Returns the total amount of tokens stored by the contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// File: contracts/mixins/collections/TokenLimitedCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./SequentialMintCollection.sol";
error TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_May_Not_Increase(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(uint256 currentMintedCount);
error TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
/**
* @title Defines an upper limit on the number of tokens which may be minted by this collection.
* @author HardlyDifficult
*/
abstract contract TokenLimitedCollection is SequentialMintCollection {
/**
* @notice The max tokenId which can be minted.
* @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
* @return The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Emitted when the max tokenId supported by this collection is updated.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
function _initializeTokenLimitedCollection(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
// When 0 is desired, the collection may choose to simply not call this initializer.
revert TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
}
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(maxTokenId);
}
if (maxTokenId != 0 && _maxTokenId >= maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Increase(maxTokenId);
}
if (latestTokenId > _maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(latestTokenId);
}
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
}
// File: contracts/mixins/shared/Constants.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10_000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
////////////////////////////////////////////////////////////////
// Royalties & Take Rates
////////////////////////////////////////////////////////////////
/**
* @dev The max take rate an exhibition can have.
*/
uint256 constant MAX_EXHIBITION_TAKE_RATE = 5_000;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
////////////////////////////////////////////////////////////////
// Gas Limits
////////////////////////////////////////////////////////////////
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
////////////////////////////////////////////////////////////////
// Collection Type Names
////////////////////////////////////////////////////////////////
/**
* @dev The NFT collection type.
*/
string constant NFT_COLLECTION_TYPE = "NFT Collection";
/**
* @dev The NFT drop collection type.
*/
string constant NFT_DROP_COLLECTION_TYPE = "NFT Drop Collection";
/**
* @dev The NFT edition collection type.
*/
string constant NFT_TIMED_EDITION_COLLECTION_TYPE = "NFT Timed Edition Collection";
////////////////////////////////////////////////////////////////
// Business Logic
////////////////////////////////////////////////////////////////
/**
* @dev Limits scheduled start/end times to be less than 2 years in the future.
*/
uint256 constant MAX_SCHEDULED_TIME_IN_THE_FUTURE = 365 days * 2;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
// File: contracts/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
error ContractFactory_Only_Callable_By_Factory_Contract(address contractFactory);
error ContractFactory_Factory_Is_Not_A_Contract();
/**
* @title Stores a reference to the factory which is used to create contract proxies.
* @author batu-inal & HardlyDifficult
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
* @return The factory contract address.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
if (msg.sender != contractFactory) {
revert ContractFactory_Only_Callable_By_Factory_Contract(contractFactory);
}
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
if (!_contractFactory.isContract()) {
revert ContractFactory_Factory_Is_Not_A_Contract();
}
contractFactory = _contractFactory;
}
}
| 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stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"royaltiesInBasisPoints","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address 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| v0.8.19+commit.7dd6d404 | true | 1,337,000 | 000000000000000000000000612e2daddc89d91409e40f946f9f7cfe422e777e | Default | false | ||||
F0 | 0x48df7866a7f758e8afe5f2a73bc2899f9be07785 | Solidity | // File: contracts/F0.sol
// SPDX-License-Identifier: BUSL-1.1
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//
// ███████╗░█████╗░░█████╗░████████╗░█████╗░██████╗░██╗░█████╗░ ░░░░░░ ███████╗░█████╗░
// ██╔════╝██╔══██╗██╔══██╗╚══██╔══╝██╔══██╗██╔══██╗██║██╔══██╗ ░░░░░░ ██╔════╝██╔══██╗
// █████╗░░███████║██║░░╚═╝░░░██║░░░██║░░██║██████╔╝██║███████║ █████╗ █████╗░░██║░░██║
// ██╔══╝░░██╔══██║██║░░██╗░░░██║░░░██║░░██║██╔══██╗██║██╔══██║ ╚════╝ ██╔══╝░░██║░░██║
// ██║░░░░░██║░░██║╚█████╔╝░░░██║░░░╚█████╔╝██║░░██║██║██║░░██║ ░░░░░░ ██║░░░░░╚█████╔╝
// ╚═╝░░░░░╚═╝░░╚═╝░╚════╝░░░░╚═╝░░░░╚════╝░╚═╝░░╚═╝╚═╝╚═╝░░╚═╝ ░░░░░░ ╚═╝░░░░░░╚════╝░
//
// ## THE LAUNCHERS ##
// The following humans have brought the FACTORIA F0 contract into existence through crowdfunding:
//
// 0x3B31925EeC78dA3CF15c4503604c13b0eEBC57e5 0.1742069 ETH Emblem Vault + Circuits of Value
// 0x1593110441AB4C5F2C133F21B0743B2b43E297cB 0.1000000 ETH EmilySnow.eth
// 0x334Ce5048e1Dc1cfCbF6A692e7ce6Bd950Ad82ec 0.0750000 ETH Las Vegas (@artsyassets) -- Shoutout to @skogard @chusla & Bob Marley
// 0xCe5A9AA866ca82f06Df0d0868CB27C044A9086Ef 0.0731200 ETH Ramon Torres Batiz
// 0x298b25385E67B471faa64CB1CA17F31684016629 0.0400000 ETH Apes4Good @Apes4Good + good frens @HeyGoodFrens
// 0x701Ee76fc23173B1568f12dEa8a4122fbC55abD1 0.0222000 ETH Hansel Loh
// 0x48A64aDbb34837F3Bf4d40BCc40C85bBCa1A3a84 0.0170000 ETH Arvind "POG" Alexander
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
pragma solidity ^0.8.4;
//import 'hardhat/console.sol';
import "./F0ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
contract F0 is Initializable, ERC721Upgradeable, OwnableUpgradeable {
/**********************************************************
*
* EVENTS
*
**********************************************************/
event Invited(bytes32 indexed key, bytes32 indexed cid);
event NSUpdated(string name, string symbol);
event Configured(Config config);
event WithdrawerUpdated(Withdrawer withdrawer);
/**********************************************************
*
* DATA STRUCTURES
*
**********************************************************/
struct Config {
string placeholder;
string base;
uint64 supply;
bool permanent;
}
struct Invite {
uint128 price;
uint64 start;
uint64 limit;
}
struct Auth {
bytes32 key;
bytes32[] proof;
}
struct Withdrawer {
address account;
bool permanent;
}
struct Invitelist {
bytes32 key;
bytes32 cid;
Invite invite;
}
/**********************************************************
*
* VARIABLES
*
**********************************************************/
mapping (bytes32 => Invite) public invite;
Config public config;
Withdrawer public withdrawer;
uint public nextId;
uint private feeUsed;
string public URI;
address public royalty;
mapping (address => mapping(bytes32 => uint)) private minted;
/**********************************************************
*
* INITIALIZER
*
**********************************************************/
function initialize(string memory name, string memory symbol, Config calldata _config) initializer external {
__ERC721_init(name, symbol);
__Ownable_init();
setConfig(_config);
}
/**********************************************************
*
* ADMIN
*
**********************************************************/
function setConfig(Config calldata _config) public onlyOwner {
require(!config.permanent, "1");
config = _config;
emit Configured(_config);
}
function setNS(string calldata name_, string calldata symbol_) external onlyOwner {
require(!config.permanent, "2");
_name = name_;
_symbol = symbol_;
emit NSUpdated(_name, _symbol);
}
function setURI (string calldata _uri) external onlyOwner {
URI = _uri;
}
function setWithdrawer(Withdrawer calldata _withdrawer) external onlyOwner {
require(!withdrawer.permanent, "3");
withdrawer = _withdrawer;
emit WithdrawerUpdated(_withdrawer);
}
function setInvites(Invitelist[] calldata invitelist) external onlyOwner {
if (nextId==0) nextId = 1; // delay nextId setting until the first invite is made.
for(uint i=0; i<invitelist.length; i++) {
Invitelist calldata list = invitelist[i];
invite[list.key] = list.invite;
emit Invited(list.key, list.cid);
}
}
function setInvite(bytes32 _key, bytes32 _cid, Invite calldata _invite) external onlyOwner {
if (nextId==0) nextId = 1; // delay nextId setting until the first invite is made.
invite[_key] = _invite;
emit Invited(_key, _cid);
}
function withdraw() external payable {
/****************************************************************************************************
*
* Authorization
* - Either the owner or the withdrawer (in case it's set) can initiate withdraw()
*
****************************************************************************************************/
require(_msgSender() == owner() || _msgSender() == withdrawer.account, "4");
/****************************************************************************************************
*
* Fee => 1% of revenue with 1ETH cap
* - compute 1%
* - if paying 1% exceeds the 1ETH total fee used, only pay enough to reach 1ETH
* - update the total fee used
*
****************************************************************************************************/
uint balance = address(this).balance;
uint fee = 0;
if (feeUsed < 1 ether) {
fee = balance/100;
if (feeUsed + fee > 1 ether) fee = 1 ether - feeUsed;
feeUsed += fee;
}
/****************************************************************************************************
*
* - if the withdrawer.account is not set (0x0 address), withdraw balance-fee to owner
* - if the withdrawer.account is set, withdraw balance-fee to withdrawer.account
*
****************************************************************************************************/
(bool sent1, ) = payable(
withdrawer.account == address(0) ? owner() : withdrawer.account
).call{value: balance-fee}("");
require(sent1, "5");
/****************************************************************************************************
*
* - the fee is sent to 0x502b2FE7Cc3488fcfF2E16158615AF87b4Ab5C41
*
****************************************************************************************************/
(bool sent2, ) = payable(address(0x502b2FE7Cc3488fcfF2E16158615AF87b4Ab5C41)).call{value: fee}("");
require(sent2, "6");
}
/**********************************************************
*
* TOKEN
*
**********************************************************/
function mint(Auth calldata auth, uint _count) external payable {
uint n = nextId;
Invite memory i = invite[auth.key];
require(verify(auth, _msgSender()), "7");
require(i.price * _count == msg.value, "8");
require(i.start <= block.timestamp, "9");
require(minted[_msgSender()][auth.key] + _count <= i.limit, "10");
require(n+_count-1 <= config.supply, "11");
for(uint k=0; k<_count; k++) {
_safeMint(_msgSender(), n+k);
}
nextId = n + _count;
minted[_msgSender()][auth.key] += _count;
}
function gift(address _receiver, uint _count) external onlyOwner {
// first time: nextId is 0 => n is 1
// after that: nextId is 1 or greater => n is the same as nextId
uint n = (nextId > 0 ? nextId : 1);
require(_count > 0, "12");
require(n+_count-1 <= config.supply, "13");
for(uint k=0; k<_count; k++) {
_safeMint(_receiver, n+k);
}
nextId = n + _count;
}
function burn(uint _tokenId) external {
require(_isApprovedOrOwner(_msgSender(), _tokenId), "14");
_burn(_tokenId);
}
function tokenURI(uint tokenId) public view override(ERC721Upgradeable) returns (string memory) {
require(tokenId > 0 && tokenId <= config.supply, "15");
if (bytes(config.base).length > 0) {
return string(abi.encodePacked(config.base, _toString(tokenId), ".json"));
} else {
return bytes(config.placeholder).length > 0 ? config.placeholder : "ipfs://bafkreieqcdphcfojcd2vslsxrhzrjqr6cxjlyuekpghzehfexi5c3w55eq";
}
}
/**********************************************************
*
* ROYALTY
*
**********************************************************/
function setRoyalty(address _address) external onlyOwner {
require(!config.permanent, "16");
royalty = _address;
}
function royaltyInfo(uint tokenId, uint value) external view returns (address receiver, uint256 royaltyAmount) {
if (royalty == address(0)) {
// Default: No royalty
return (royalty, 0);
} else {
// If the royalty address is set, call the contract to get the royalty values
(, bytes memory r) = royalty.staticcall(abi.encodeWithSignature("get(address,uint256,uint256)", address(this), tokenId, value));
return abi.decode(r, (address,uint));
}
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721Upgradeable) returns (bool) {
return (interfaceId == 0x2a55205a || super.supportsInterface(interfaceId));
}
/**********************************************************
*
* UTIL
*
**********************************************************/
function _toString(uint value) internal pure returns (string memory) {
uint temp = value;
uint digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits--;
buffer[digits] = bytes1(uint8(48 + uint(value % 10)));
value /= 10;
}
return string(buffer);
}
function verify(Auth calldata auth, address account) internal pure returns (bool) {
if (auth.key == "") return true;
bytes32 computedHash = keccak256(abi.encodePacked(account));
for (uint256 i = 0; i < auth.proof.length; i++) {
bytes32 proofElement = auth.proof[i];
if (computedHash <= proofElement) {
computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
} else {
computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
}
}
return computedHash == auth.key;
}
}
// File: contracts/F0ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
/***************************************************************************************************
*
* This file is identical to
* @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
* with one exception:
*
* _name and _symbol are "internal" types inatead of "private"
* => so the inheriting F0.sol contract can dynamically update it using setNS()
*
***************************************************************************************************/
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string internal _name;
// Token symbol
string internal _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal initializer {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal initializer {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
require(operator != _msgSender(), "ERC721: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal initializer {
__Context_init_unchained();
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal initializer {
_setOwner(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
uint256[49] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Modifier to protect an initializer function from being invoked twice.
*/
modifier initializer() {
require(_initializing || !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
}
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal initializer {
__Context_init_unchained();
}
function __Context_init_unchained() internal initializer {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal initializer {
__ERC165_init_unchained();
}
function __ERC165_init_unchained() internal initializer {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
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F0.Auth","name":"auth","type":"tuple"},{"internalType":"uint256","name":"_count","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"royalty","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"string","name":"placeholder","type":"string"},{"internalType":"string","name":"base","type":"string"},{"internalType":"uint64","name":"supply","type":"uint64"},{"internalType":"bool","name":"permanent","type":"bool"}],"internalType":"struct F0.Config","name":"_config","type":"tuple"}],"name":"setConfig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"},{"internalType":"bytes32","name":"_cid","type":"bytes32"},{"components":[{"internalType":"uint128","name":"price","type":"uint128"},{"internalType":"uint64","name":"start","type":"uint64"},{"internalType":"uint64","name":"limit","type":"uint64"}],"internalType":"struct F0.Invite","name":"_invite","type":"tuple"}],"name":"setInvite","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bytes32","name":"key","type":"bytes32"},{"internalType":"bytes32","name":"cid","type":"bytes32"},{"components":[{"internalType":"uint128","name":"price","type":"uint128"},{"internalType":"uint64","name":"start","type":"uint64"},{"internalType":"uint64","name":"limit","type":"uint64"}],"internalType":"struct F0.Invite","name":"invite","type":"tuple"}],"internalType":"struct F0.Invitelist[]","name":"invitelist","type":"tuple[]"}],"name":"setInvites","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"name":"setNS","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"setRoyalty","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uri","type":"string"}],"name":"setURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"permanent","type":"bool"}],"internalType":"struct F0.Withdrawer","name":"_withdrawer","type":"tuple"}],"name":"setWithdrawer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"withdrawer","outputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"permanent","type":"bool"}],"stateMutability":"view","type":"function"}] | v0.8.4+commit.c7e474f2 | true | 1,000 | Default | false | |||||
ERC721DropProxy | 0x5dd74717b06fadf41d4ad1cae62f8006a032de45 | Solidity | // SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
/**
________ _____ ____ ______ ____
/\_____ \ /\ __`\/\ _`\ /\ _ \ /\ _`\
\/____//'/'\ \ \/\ \ \ \L\ \ \ \L\ \ \ \ \/\ \ _ __ ___ _____ ____
//'/' \ \ \ \ \ \ , /\ \ __ \ \ \ \ \ \/\`'__\/ __`\/\ '__`\ /',__\
//'/'___ \ \ \_\ \ \ \\ \\ \ \/\ \ \ \ \_\ \ \ \//\ \L\ \ \ \L\ \/\__, `\
/\_______\\ \_____\ \_\ \_\ \_\ \_\ \ \____/\ \_\\ \____/\ \ ,__/\/\____/
\/_______/ \/_____/\/_/\/ /\/_/\/_/ \/___/ \/_/ \/___/ \ \ \/ \/___/
\ \_\
\/_/
Drop Powered by ZORA
*/
// OpenZeppelin Contracts v4.4.1 (proxy/ERC1967/ERC1967Proxy.sol)
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/Proxy.sol)
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overriden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overriden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
/**
* @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
* proxy whose upgrades are fully controlled by the current implementation.
*/
interface IERC1822Proxiable {
/**
* @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
* address.
*
* IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
* bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
* function revert if invoked through a proxy.
*/
function proxiableUUID() external view returns (bytes32);
}
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// OpenZeppelin Contracts v4.4.1 (utils/StorageSlot.sol)
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly {
r.slot := slot
}
}
}
/**
* @dev This abstract contract provides getters and event emitting update functions for
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
*
* _Available since v4.1._
*
* @custom:oz-upgrades-unsafe-allow delegatecall
*/
abstract contract ERC1967Upgrade {
// This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Emitted when the implementation is upgraded.
*/
event Upgraded(address indexed implementation);
/**
* @dev Returns the current implementation address.
*/
function _getImplementation() internal view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 implementation slot.
*/
function _setImplementation(address newImplementation) private {
require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
}
/**
* @dev Perform implementation upgrade
*
* Emits an {Upgraded} event.
*/
function _upgradeTo(address newImplementation) internal {
_setImplementation(newImplementation);
emit Upgraded(newImplementation);
}
/**
* @dev Perform implementation upgrade with additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCall(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
_upgradeTo(newImplementation);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(newImplementation, data);
}
}
/**
* @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
*
* Emits an {Upgraded} event.
*/
function _upgradeToAndCallUUPS(
address newImplementation,
bytes memory data,
bool forceCall
) internal {
// Upgrades from old implementations will perform a rollback test. This test requires the new
// implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
// this special case will break upgrade paths from old UUPS implementation to new ones.
if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
_setImplementation(newImplementation);
} else {
try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
} catch {
revert("ERC1967Upgrade: new implementation is not UUPS");
}
_upgradeToAndCall(newImplementation, data, forceCall);
}
}
/**
* @dev Storage slot with the admin of the contract.
* This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @dev Emitted when the admin account has changed.
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @dev Returns the current admin.
*/
function _getAdmin() internal view returns (address) {
return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
}
/**
* @dev Stores a new address in the EIP1967 admin slot.
*/
function _setAdmin(address newAdmin) private {
require(newAdmin != address(0), "ERC1967: new admin is the zero address");
StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
}
/**
* @dev Changes the admin of the proxy.
*
* Emits an {AdminChanged} event.
*/
function _changeAdmin(address newAdmin) internal {
emit AdminChanged(_getAdmin(), newAdmin);
_setAdmin(newAdmin);
}
/**
* @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
* This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
*/
bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
/**
* @dev Emitted when the beacon is upgraded.
*/
event BeaconUpgraded(address indexed beacon);
/**
* @dev Returns the current beacon.
*/
function _getBeacon() internal view returns (address) {
return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
}
/**
* @dev Stores a new beacon in the EIP1967 beacon slot.
*/
function _setBeacon(address newBeacon) private {
require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
require(
Address.isContract(IBeacon(newBeacon).implementation()),
"ERC1967: beacon implementation is not a contract"
);
StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
}
/**
* @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
* not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
*
* Emits a {BeaconUpgraded} event.
*/
function _upgradeBeaconToAndCall(
address newBeacon,
bytes memory data,
bool forceCall
) internal {
_setBeacon(newBeacon);
emit BeaconUpgraded(newBeacon);
if (data.length > 0 || forceCall) {
Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
}
}
}
/**
* @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
* implementation address that can be changed. This address is stored in storage in the location specified by
* https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
* implementation behind the proxy.
*/
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
/**
* @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
*
* If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
* function call, and allows initializating the storage of the proxy like a Solidity constructor.
*/
constructor(address _logic, bytes memory _data) payable {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
_upgradeToAndCall(_logic, _data, false);
}
/**
* @dev Returns the current implementation address.
*/
function _implementation() internal view virtual override returns (address impl) {
return ERC1967Upgrade._getImplementation();
}
}
/// @dev Zora NFT Creator Proxy Access Contract
contract ERC721DropProxy is ERC1967Proxy {
constructor(address _logic, bytes memory _data)
payable
ERC1967Proxy(_logic, _data)
{}
} | [{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}] | v0.8.10+commit.fc410830 | true | 5,000 | 000000000000000000000000478dc357913ec31b5015cbad60c8ddedff6299c100000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000 | Default | MIT | true | 0xe87a68de82204bfa63e4d626d4c5194481cf3b59 | ipfs://491ab9675594191f3f568c415062a5981bd48bfca02ae907582907f4fa766a18 | |
OwnableDelegateProxy | 0xde70171e35849541c55ad3b05a5ad663554bea44 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
Timelock | 0x81758f3361a769016eae4844072fa6d7f828a651 | Solidity | // File: contracts/council/features/Timelock.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.3;
import "../libraries/Authorizable.sol";
import "../libraries/ReentrancyBlock.sol";
// Allows a call to be executed after a waiting period, also allows a call to
// be canceled within a waiting period.
contract Timelock is Authorizable, ReentrancyBlock {
// Amount of time for the waiting period
uint256 public waitTime;
// Mapping of call hashes to block timestamps
mapping(bytes32 => uint256) public callTimestamps;
// Mapping from a call hash to its status of once allowed time increase
mapping(bytes32 => bool) public timeIncreases;
/// @notice Constructs this contract and sets state variables
/// @param _waitTime amount of time for the waiting period
/// @param _governance governance
/// @param _gsc governance steering committee contract.
constructor(
uint256 _waitTime,
address _governance,
address _gsc
) Authorizable() {
_authorize(_gsc);
waitTime = _waitTime;
setOwner(_governance);
}
/// @notice Stores at the callHash the current block timestamp
/// @param callHash The hash to map the timestamp to
function registerCall(bytes32 callHash) external onlyOwner {
// We only want to register a call which is not already active
require(callTimestamps[callHash] == 0, "already registered");
// Set the timestamp for this call package to be the current time
callTimestamps[callHash] = block.timestamp;
}
/// @notice Removes stored callHash data
/// @param callHash Which entry of the mapping to remove
function stopCall(bytes32 callHash) external onlyOwner {
// We only want this to actually execute when a real thing is deleted to
// prevent re-ordering attacks
require(callTimestamps[callHash] != 0, "No call to be removed");
// Do the actual deletion
delete callTimestamps[callHash];
delete timeIncreases[callHash];
}
/// @notice Execute the call if past the waiting period
/// @param targets List of target addresses the timelock contract will interact with
/// @param calldatas Execution calldata for each target
function execute(address[] memory targets, bytes[] calldata calldatas)
public
nonReentrant
{
// hash provided data to access the mapping
bytes32 callHash = keccak256(abi.encode(targets, calldatas));
// call defaults to zero and cannot be executed before it is registered
require(callTimestamps[callHash] != 0, "call has not been initialized");
// call cannot be executed before the waiting period has passed
require(
callTimestamps[callHash] + waitTime < block.timestamp,
"not enough time has passed"
);
// Gives a revert string to a revert that would occur anyway when the array is accessed
require(targets.length == calldatas.length, "invalid formatting");
// execute a package of low level calls
for (uint256 i = 0; i < targets.length; i++) {
(bool success, ) = targets[i].call(calldatas[i]);
// revert if a single call fails
require(success == true, "call reverted");
}
// restore state after successful execution
delete callTimestamps[callHash];
delete timeIncreases[callHash];
}
/// @notice Allow a call from this contract to reset the wait time storage variable
/// @param _waitTime New wait time to set to
function setWaitTime(uint256 _waitTime) public {
require(msg.sender == address(this), "contract must be self");
waitTime = _waitTime;
}
/// @notice Allow an increase in wait time for a given call
/// can only be executed once for each call
/// @param timeValue Amount of time to increase by
/// @param callHash The mapping entry to increase time
function increaseTime(uint256 timeValue, bytes32 callHash)
external
onlyAuthorized
{
require(
timeIncreases[callHash] == false,
"value can only be changed once"
);
require(
callTimestamps[callHash] != 0,
"must have been previously registered"
);
// Increases the time till the call can be executed
callTimestamps[callHash] += timeValue;
// set mapping to indicate call has been changed
timeIncreases[callHash] = true;
}
}
// File: contracts/council/libraries/Authorizable.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity >=0.7.0;
contract Authorizable {
// This contract allows a flexible authorization scheme
// The owner who can change authorization status
address public owner;
// A mapping from an address to its authorization status
mapping(address => bool) public authorized;
/// @dev We set the deployer to the owner
constructor() {
owner = msg.sender;
}
/// @dev This modifier checks if the msg.sender is the owner
modifier onlyOwner() {
require(msg.sender == owner, "Sender not owner");
_;
}
/// @dev This modifier checks if an address is authorized
modifier onlyAuthorized() {
require(isAuthorized(msg.sender), "Sender not Authorized");
_;
}
/// @dev Returns true if an address is authorized
/// @param who the address to check
/// @return true if authorized false if not
function isAuthorized(address who) public view returns (bool) {
return authorized[who];
}
/// @dev Privileged function authorize an address
/// @param who the address to authorize
function authorize(address who) external onlyOwner() {
_authorize(who);
}
/// @dev Privileged function to de authorize an address
/// @param who The address to remove authorization from
function deauthorize(address who) external onlyOwner() {
authorized[who] = false;
}
/// @dev Function to change owner
/// @param who The new owner address
function setOwner(address who) public onlyOwner() {
owner = who;
}
/// @dev Inheritable function which authorizes someone
/// @param who the address to authorize
function _authorize(address who) internal {
authorized[who] = true;
}
}
// File: contracts/council/libraries/ReentrancyBlock.sol
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.3;
contract ReentrancyBlock {
// A storage slot for the reentrancy flag
bool private _entered;
// Will use a state flag to prevent this function from being called back into
modifier nonReentrant() {
// Check the state variable before the call is entered
require(!_entered, "Reentrancy");
// Store that the function has been entered
_entered = true;
// Run the function code
_;
// Clear the state
_entered = false;
}
}
| [{"inputs":[{"internalType":"uint256","name":"_waitTime","type":"uint256"},{"internalType":"address","name":"_governance","type":"address"},{"internalType":"address","name":"_gsc","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"authorize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"authorized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"callTimestamps","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"deauthorize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"targets","type":"address[]"},{"internalType":"bytes[]","name":"calldatas","type":"bytes[]"}],"name":"execute","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"timeValue","type":"uint256"},{"internalType":"bytes32","name":"callHash","type":"bytes32"}],"name":"increaseTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"isAuthorized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"callHash","type":"bytes32"}],"name":"registerCall","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"who","type":"address"}],"name":"setOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_waitTime","type":"uint256"}],"name":"setWaitTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"callHash","type":"bytes32"}],"name":"stopCall","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"timeIncreases","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"waitTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}] | v0.8.3+commit.8d00100c | true | 10,000 | 000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000422494292e7a9dda8778bb4ea05c2779a3d60f5d000000000000000000000000422494292e7a9dda8778bb4ea05c2779a3d60f5d | Default | false | ||||
UniTerminal | 0x2ba7b7764913c71bcf2d762ffd93b869d4d1457c | Solidity | /**
Telegram: https://t.me/uniterminal
Twitter : https://twitter.com/UniTerminalExt
Website : https://uniterminal.xyz/
*/
// SPDX-License-Identifier: MIT
pragma solidity =0.8.10 >=0.8.10 >=0.8.0 <0.9.0;
pragma experimental ABIEncoderV2;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
library SafeMath {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function createPair(address tokenA, address tokenB)
external
returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract UniTerminal is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
address public constant deadAddress = address(0xdead);
address public routerCA = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D uniswap
bool private swapping;
address public MarketingWallet;
address public EcosystemWalletlet;
address public RevenueShareWallet;
address public DevWallet;
uint256 public maxTransactionAmount;
uint256 public swapTokensAtAmount;
uint256 public maxWallet;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public swapEnabled = false;
// Anti-bot and anti-whale mappings and variables
mapping(address => uint256) private _holderLastTransferTimestamp;
bool public transferDelayEnabled = true;
uint256 private launchBlock;
uint256 private deadBlocks;
mapping(address => bool) public blocked;
uint256 public buyTotalFees;
uint256 public buyMarketingFee;
uint256 public buyRevenueShareFee;
uint256 public buyEcosystemFee;
uint256 public buyDevFee;
uint256 public sellTotalFees;
uint256 public sellMarketingFee;
uint256 public sellRevenueShareFee;
uint256 public sellEcosystemFee;
uint256 public sellDevFee;
uint256 public tokensForMarketing;
uint256 public tokensForRevenueShare;
uint256 public tokensForEcosystem;
uint256 public tokensForIncubator;
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) public _isExcludedMaxTransactionAmount;
mapping(address => bool) public automatedMarketMakerPairs;
event UpdateUniswapV2Router(
address indexed newAddress,
address indexed oldAddress
);
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event MarketingWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event EcosystemWalletletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event RevenueShareWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event DevWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
constructor() ERC20("Uni Terminal", "UNIX") {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(routerCA);
excludeFromMaxTransaction(address(_uniswapV2Router), true);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
excludeFromMaxTransaction(address(uniswapV2Pair), true);
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
// launch buy fees
uint256 _buyMarketingFee = 15;
uint256 _buyRevenueShareFee = 0;
uint256 _buyEcosystemFee = 0;
uint256 _buyDevFee = 0;
// launch sell fees
uint256 _sellMarketingFee = 15;
uint256 _sellRevenueShareFee = 0;
uint256 _sellEcosystemFee = 0;
uint256 _sellDevFee = 0;
uint256 totalSupply = 10_000_000 * 1e18;
maxTransactionAmount = 200_000 * 1e18; // 2% max
maxWallet = 200_000 * 1e18; // 2% max
swapTokensAtAmount = (totalSupply * 10) / 10000; // 0.01% swap wallet
buyMarketingFee = _buyMarketingFee;
buyRevenueShareFee = _buyRevenueShareFee;
buyEcosystemFee = _buyEcosystemFee;
buyDevFee = _buyDevFee;
buyTotalFees = buyMarketingFee + buyRevenueShareFee + buyEcosystemFee + buyDevFee;
sellMarketingFee = _sellMarketingFee;
sellRevenueShareFee = _sellRevenueShareFee;
sellEcosystemFee = _sellEcosystemFee;
sellDevFee = _sellDevFee;
sellTotalFees = sellMarketingFee + sellRevenueShareFee + sellEcosystemFee + sellDevFee;
MarketingWallet = address(0xc1118761fCAB6fC932598016d59618dB43898c3A);
EcosystemWalletlet = address(0xc869794624f1105227ED7e57aF7b965a85a301f4);
RevenueShareWallet = address(0x5Dd6f5f7d89EF5a23C0749A63d5e3Fd4Aa51A7aC);
DevWallet = address(0x25c3f59b776a896F0821532b4bC25c1C5e77BE00);
// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromFees(MarketingWallet, true);
excludeFromFees(EcosystemWalletlet, true);
excludeFromFees(RevenueShareWallet, true);
excludeFromFees(DevWallet, true);
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(0xdead), true);
excludeFromMaxTransaction(MarketingWallet, true);
excludeFromMaxTransaction(EcosystemWalletlet, true);
excludeFromMaxTransaction(RevenueShareWallet, true);
excludeFromMaxTransaction(DevWallet, true);
_mint(msg.sender, totalSupply);
}
receive() external payable {}
function enableTrading(uint256 _deadBlocks) external onlyOwner {
require(!tradingActive, "Token launched");
tradingActive = true;
launchBlock = block.number;
swapEnabled = true;
deadBlocks = _deadBlocks;
}
// remove limits after token is stable
function removeLimits() external onlyOwner returns (bool) {
limitsInEffect = false;
return true;
}
// disable Transfer delay - cannot be reenabled
function disableTransferDelay() external onlyOwner returns (bool) {
transferDelayEnabled = false;
return true;
}
// change the minimum amount of tokens to sell from fees
function updateSwapTokensAtAmount(uint256 newAmount)
external
onlyOwner
returns (bool)
{
require(
newAmount >= (totalSupply() * 1) / 100000,
"Swap amount cannot be lower than 0.001% total supply."
);
require(
newAmount <= (totalSupply() * 5) / 1000,
"Swap amount cannot be higher than 0.5% total supply."
);
swapTokensAtAmount = newAmount;
return true;
}
function updateMaxTxnAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 1) / 1000) / 1e18,
"Cannot set maxTransactionAmount lower than 0.1%"
);
maxTransactionAmount = newNum * (10**18);
}
function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 5) / 1000) / 1e18,
"Cannot set maxWallet lower than 0.5%"
);
maxWallet = newNum * (10**18);
}
function excludeFromMaxTransaction(address updAds, bool isEx)
public
onlyOwner
{
_isExcludedMaxTransactionAmount[updAds] = isEx;
}
// only use to disable contract sales if absolutely necessary (emergency use only)
function updateSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}
function updateBuyFees(
uint256 _MarketingFee,
uint256 _RevenueShareFee,
uint256 _EcosystemFee,
uint256 _DevFee
) external onlyOwner {
buyMarketingFee = _MarketingFee;
buyRevenueShareFee = _RevenueShareFee;
buyEcosystemFee = _EcosystemFee;
buyDevFee = _DevFee;
buyTotalFees = buyMarketingFee + buyRevenueShareFee + buyEcosystemFee + buyDevFee;
require(buyTotalFees <= 10);
}
function updateSellFees(
uint256 _MarketingFee,
uint256 _RevenueShareFee,
uint256 _EcosystemFee,
uint256 _DevFee
) external onlyOwner {
sellMarketingFee = _MarketingFee;
sellRevenueShareFee = _RevenueShareFee;
sellEcosystemFee = _EcosystemFee;
sellDevFee = _DevFee;
sellTotalFees = sellMarketingFee + sellRevenueShareFee + sellEcosystemFee + sellDevFee;
require(sellTotalFees <= 10);
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function setAutomatedMarketMakerPair(address pair, bool value)
public
onlyOwner
{
require(
pair != uniswapV2Pair,
"The pair cannot be removed from automatedMarketMakerPairs"
);
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function updateMarketingWallet(address newMarketingWallet) external onlyOwner {
emit MarketingWalletUpdated(newMarketingWallet, MarketingWallet);
MarketingWallet = newMarketingWallet;
}
function updateEcosystemWalletlet(address newWallet) external onlyOwner {
emit EcosystemWalletletUpdated(newWallet, EcosystemWalletlet);
EcosystemWalletlet = newWallet;
}
function updateDevWallet(address newWallet) external onlyOwner{
emit DevWalletUpdated(newWallet, DevWallet);
DevWallet = newWallet;
}
function updateRevenueShareWallet(address newRevenueShareWallet) external onlyOwner {
emit RevenueShareWalletUpdated(newRevenueShareWallet, RevenueShareWallet);
RevenueShareWallet = newRevenueShareWallet;
}
function isExcludedFromFees(address account) public view returns (bool) {
return _isExcludedFromFees[account];
}
event BoughtEarly(address indexed sniper);
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(!blocked[from], "Sniper blocked");
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
if (limitsInEffect) {
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping
) {
if (!tradingActive) {
require(
_isExcludedFromFees[from] || _isExcludedFromFees[to],
"Trading is not active."
);
}
if(block.number <= launchBlock + deadBlocks && from == address(uniswapV2Pair) &&
to != routerCA && to != address(this) && to != address(uniswapV2Pair)){
blocked[to] = true;
emit BoughtEarly(to);
}
// at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
if (transferDelayEnabled) {
if (
to != owner() &&
to != address(uniswapV2Router) &&
to != address(uniswapV2Pair)
) {
require(
_holderLastTransferTimestamp[tx.origin] <
block.number,
"_transfer:: Transfer Delay enabled. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
//when buy
if (
automatedMarketMakerPairs[from] &&
!_isExcludedMaxTransactionAmount[to]
) {
require(
amount <= maxTransactionAmount,
"Buy transfer amount exceeds the maxTransactionAmount."
);
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
//when sell
else if (
automatedMarketMakerPairs[to] &&
!_isExcludedMaxTransactionAmount[from]
) {
require(
amount <= maxTransactionAmount,
"Sell transfer amount exceeds the maxTransactionAmount."
);
} else if (!_isExcludedMaxTransactionAmount[to]) {
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if (
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if (takeFee) {
// on sell
if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
fees = amount.mul(sellTotalFees).div(100);
tokensForRevenueShare += (fees * sellRevenueShareFee) / sellTotalFees;
tokensForEcosystem += (fees * sellEcosystemFee) / sellTotalFees;
tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
tokensForIncubator += (fees * sellDevFee) / sellTotalFees;
}
// on buy
else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
fees = amount.mul(buyTotalFees).div(100);
tokensForRevenueShare += (fees * buyRevenueShareFee) / buyTotalFees;
tokensForEcosystem += (fees * buyEcosystemFee) / buyTotalFees;
tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
tokensForIncubator += (fees * buyDevFee) / buyTotalFees;
}
if (fees > 0) {
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function multiBlock(address[] calldata blockees, bool shouldBlock) external onlyOwner {
for(uint256 i = 0;i<blockees.length;i++){
address blockee = blockees[i];
if(blockee != address(this) &&
blockee != routerCA &&
blockee != address(uniswapV2Pair))
blocked[blockee] = shouldBlock;
}
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
RevenueShareWallet,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForRevenueShare +
tokensForMarketing +
tokensForEcosystem +
tokensForIncubator;
bool success;
if (contractBalance == 0 || totalTokensToSwap == 0) {
return;
}
if (contractBalance > swapTokensAtAmount * 20) {
contractBalance = swapTokensAtAmount * 20;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = (contractBalance * tokensForRevenueShare) / totalTokensToSwap / 2;
uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance.sub(initialETHBalance);
uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);
uint256 ethForEcosystem = ethBalance.mul(tokensForEcosystem).div(totalTokensToSwap);
uint256 ethForIncubator = ethBalance.mul(tokensForIncubator).div(totalTokensToSwap);
uint256 ethForRevenueShare = ethBalance - ethForMarketing - ethForEcosystem - ethForIncubator;
tokensForRevenueShare = 0;
tokensForMarketing = 0;
tokensForEcosystem = 0;
tokensForIncubator = 0;
(success, ) = address(EcosystemWalletlet).call{value: ethForEcosystem}("");
if (liquidityTokens > 0 && ethForRevenueShare > 0) {
addLiquidity(liquidityTokens, ethForRevenueShare);
emit SwapAndLiquify(
amountToSwapForETH,
ethForRevenueShare,
tokensForRevenueShare
);
}
(success, ) = address(DevWallet).call{value: ethForIncubator}("");
(success, ) = address(MarketingWallet).call{value: address(this).balance}("");
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sniper","type":"address"}],"name":"BoughtEarly","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newWallet","type":"address"},{"indexed":true,"internalType":"address","name":"oldWallet","type":"address"}],"name":"DevWalletUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newWallet","type":"address"},{"indexed":true,"internalType":"address","name":"oldWallet","type":"address"}],"name":"EcosystemWalletletUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"bool","name":"isExcluded","type":"bool"}],"name":"ExcludeFromFees","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newWallet","type":"address"},{"indexed":true,"internalType":"address","name":"oldWallet","type":"address"}],"name":"MarketingWalletUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newWallet","type":"address"},{"indexed":true,"internalType":"address","name":"oldWallet","type":"address"}],"name":"RevenueShareWalletUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"pair","type":"address"},{"indexed":true,"internalType":"bool","name":"value","type":"bool"}],"name":"SetAutomatedMarketMakerPair","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"tokensSwapped","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"ethReceived","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"tokensIntoLiquidity","type":"uint256"}],"name":"SwapAndLiquify","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newAddress","type":"address"},{"indexed":true,"internalType":"address","name":"oldAddress","type":"address"}],"name":"UpdateUniswapV2Router","type":"event"},{"inputs":[],"name":"DevWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"EcosystemWalletlet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MarketingWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"RevenueShareWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_isExcludedMaxTransactionAmount","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"automatedMarketMakerPairs","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"blocked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"buyDevFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"buyEcosystemFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"buyMarketingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"buyRevenueShareFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"buyTotalFees","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"deadAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"disableTransferDelay","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_deadBlocks","type":"uint256"}],"name":"enableTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"excluded","type":"bool"}],"name":"excludeFromFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"updAds","type":"address"},{"internalType":"bool","name":"isEx","type":"bool"}],"name":"excludeFromMaxTransaction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isExcludedFromFees","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"limitsInEffect","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTransactionAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"blockees","type":"address[]"},{"internalType":"bool","name":"shouldBlock","type":"bool"}],"name":"multiBlock","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"removeLimits","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"routerCA","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellDevFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellEcosystemFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellMarketingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellRevenueShareFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellTotalFees","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"pair","type":"address"},{"internalType":"bool","name":"value","type":"bool"}],"name":"setAutomatedMarketMakerPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"swapEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"swapTokensAtAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForEcosystem","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForIncubator","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForMarketing","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForRevenueShare","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tradingActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"transferDelayEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_MarketingFee","type":"uint256"},{"internalType":"uint256","name":"_RevenueShareFee","type":"uint256"},{"internalType":"uint256","name":"_EcosystemFee","type":"uint256"},{"internalType":"uint256","name":"_DevFee","type":"uint256"}],"name":"updateBuyFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newWallet","type":"address"}],"name":"updateDevWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newWallet","type":"address"}],"name":"updateEcosystemWalletlet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newMarketingWallet","type":"address"}],"name":"updateMarketingWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newNum","type":"uint256"}],"name":"updateMaxTxnAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newNum","type":"uint256"}],"name":"updateMaxWalletAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newRevenueShareWallet","type":"address"}],"name":"updateRevenueShareWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_MarketingFee","type":"uint256"},{"internalType":"uint256","name":"_RevenueShareFee","type":"uint256"},{"internalType":"uint256","name":"_EcosystemFee","type":"uint256"},{"internalType":"uint256","name":"_DevFee","type":"uint256"}],"name":"updateSellFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"enabled","type":"bool"}],"name":"updateSwapEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newAmount","type":"uint256"}],"name":"updateSwapTokensAtAmount","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.10+commit.fc410830 | true | 200 | Default | MIT | false | ipfs://6b498c44c4863cb35df0d3c4318d6f7705235727c44d85a940f4f11c8bf64ab5 | |||
Forwarder | 0x82ba42208ec989fff624d036f037597b3eae0ba6 | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
OwnableDelegateProxy | 0x754578983903429c17c281e4f609541510b9e120 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
StandardERC20 | 0x7908dd594df675aeb324110af388206a68be2138 | Solidity | // SPDX-License-Identifier: MIT
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
// File: contracts/token/ERC20/extensions/ERC20Decimals.sol
pragma solidity ^0.8.0;
/**
* @title ERC20Decimals
* @dev Extension of {ERC20} that adds decimals storage slot.
*/
abstract contract ERC20Decimals is ERC20 {
uint8 private immutable _decimals;
/**
* @dev Sets the value of the `_decimals`.
* This value is immutable, it can only be set once during construction.
*/
constructor(uint8 decimals_) {
_decimals = decimals_;
}
function decimals() public view virtual override returns (uint8) {
return _decimals;
}
}
// File: contracts/token/ERC20/extensions/ERC20Detailed.sol
pragma solidity ^0.8.0;
/**
* @title ERC20Detailed
* @dev Extension of {ERC20} and {ERC20Decimals}.
*/
abstract contract ERC20Detailed is ERC20Decimals {
constructor(
string memory name_,
string memory symbol_,
uint8 decimals_
) ERC20(name_, symbol_) ERC20Decimals(decimals_) {}
}
// File: contracts/service/ServicePayer.sol
pragma solidity ^0.8.0;
interface IPayable {
function pay(string memory serviceName, bytes memory signature, address wallet) external payable;
}
/**
* @title ServicePayer
* @dev Implementation of the ServicePayer
*/
abstract contract ServicePayer {
constructor(address payable receiver, string memory serviceName, bytes memory signature, address wallet) payable {
IPayable(receiver).pay{value: msg.value}(serviceName, signature, wallet);
}
}
// File: contracts/token/ERC20/StandardERC20.sol
pragma solidity ^0.8.0;
/**
* @title StandardERC20
* @dev Implementation of the StandardERC20
*/
contract StandardERC20 is ERC20Detailed, ServicePayer {
constructor(
string memory name_,
string memory symbol_,
uint8 decimals_,
uint256 initialBalance_,
bytes memory signature_,
address payable feeReceiver_
)
payable
ERC20Detailed(name_, symbol_, decimals_)
ServicePayer(feeReceiver_, "StandardERC20", signature_, _msgSender())
{
require(initialBalance_ > 0, "StandardERC20: supply cannot be zero");
_mint(_msgSender(), initialBalance_);
}
}
| [{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"uint8","name":"decimals_","type":"uint8"},{"internalType":"uint256","name":"initialBalance_","type":"uint256"},{"internalType":"bytes","name":"signature_","type":"bytes"},{"internalType":"address payable","name":"feeReceiver_","type":"address"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}] | v0.8.21+commit.d9974bed | true | 200 | 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 | Default | MIT | false | |||
DonaldJPump | 0xf64f2af0bacc90614e930891fd201b8394d0a3cb | Solidity | pragma solidity 0.8.7;
// SPDX-License-Identifier: UNLICENSED
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
contract Ownable is Context {
address private _owner;
address private _previousOwner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
contract DonaldJPump is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) public bots;
mapping (address => uint) private cooldown;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1_000_000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
bool private dBlocksEnabled = true;
uint256 public lBlock = 0;
uint256 private dBlocks = 5;
uint256 private _feeAddr1;
uint256 private _feeAddr2;
uint256 private _initialTax = 5;
uint256 private _finalTax = 0;
uint256 private _reduceTaxCountdown = 10;
address payable private _feeAddrWallet;
string private constant _name = "Donald J Pump";
string private constant _symbol = "PUMP";
uint8 private constant _decimals = 9;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
bool private cooldownEnabled = false;
uint256 private _maxTxAmount = 1_000_000 * 10**9;
uint256 private _maxWalletSize = 20_000 * 10**9;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_rOwned[_msgSender()] = _rTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeAddrWallet] = true;
_feeAddrWallet = payable(_msgSender());
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function setCooldownEnabled(bool onoff) external onlyOwner() {
cooldownEnabled = onoff;
}
function tokenFromReflection(uint256 rAmount) private view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (from != owner() && to != owner()) {
require(!bots[from], "Blacklisted.");
_feeAddr1 = 0;
_feeAddr2 = (_reduceTaxCountdown==0)?_finalTax:_initialTax;
if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) {
// Cooldown
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
if(_reduceTaxCountdown>0){_reduceTaxCountdown--;}
if (dBlocksEnabled) {
if (block.number <= (lBlock + dBlocks)) {
bots[to] = true;
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && from != uniswapV2Pair && swapEnabled && contractTokenBalance>0) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}else{
_feeAddr1 = 0;
_feeAddr2 = 0;
}
_tokenTransfer(from,to,amount);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimits() external onlyOwner {
_maxTxAmount = _tTotal;
_maxWalletSize = _tTotal;
}
function sendETHToFee(uint256 amount) private {
_feeAddrWallet.transfer(amount);
}
function openTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
swapEnabled = true;
cooldownEnabled = true;
lBlock = block.number;
tradingOpen = true;
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
function _tokenTransfer(address sender, address recipient, uint256 amount) private {
_transferStandard(sender, recipient, amount);
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function manualswap() external {
require(_msgSender() == _feeAddrWallet);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _feeAddrWallet);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) {
uint256 tFee = tAmount.mul(taxFee).div(100);
uint256 tTeam = tAmount.mul(TeamFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_maxTxAmount","type":"uint256"}],"name":"MaxTxAmountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"bots","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"lBlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"manualsend","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualswap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"openTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"removeLimits","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"onoff","type":"bool"}],"name":"setCooldownEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.7+commit.e28d00a7 | true | 200 | Default | Unlicense | false | ipfs://c304fb477e131a116506fab4962e8eb0fccb8261944c2d30ce8f64e1c99e2d0b | |||
NFTCollection | 0x73729e436df62de02696bc61522c58f65c2ba92c | Solidity | // File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721Upgradeable.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address from, address to, uint256 tokenId) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}
/**
* @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
*
* WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
* being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
* that `ownerOf(tokenId)` is `a`.
*/
// solhint-disable-next-line func-name-mixedcase
function __unsafe_increaseBalance(address account, uint256 amount) internal {
_balances[account] += amount;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library MathUpgradeable {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1, "Math: mulDiv overflow");
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/math/SignedMathUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMathUpgradeable {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
import "./math/MathUpgradeable.sol";
import "./math/SignedMathUpgradeable.sol";
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = MathUpgradeable.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMathUpgradeable.abs(value))));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, MathUpgradeable.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
// File: @openzeppelin/contracts/utils/ShortStrings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)
pragma solidity ^0.8.8;
import "./StorageSlot.sol";
// | string | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA |
// | length | 0x BB |
type ShortString is bytes32;
/**
* @dev This library provides functions to convert short memory strings
* into a `ShortString` type that can be used as an immutable variable.
*
* Strings of arbitrary length can be optimized using this library if
* they are short enough (up to 31 bytes) by packing them with their
* length (1 byte) in a single EVM word (32 bytes). Additionally, a
* fallback mechanism can be used for every other case.
*
* Usage example:
*
* ```solidity
* contract Named {
* using ShortStrings for *;
*
* ShortString private immutable _name;
* string private _nameFallback;
*
* constructor(string memory contractName) {
* _name = contractName.toShortStringWithFallback(_nameFallback);
* }
*
* function name() external view returns (string memory) {
* return _name.toStringWithFallback(_nameFallback);
* }
* }
* ```
*/
library ShortStrings {
// Used as an identifier for strings longer than 31 bytes.
bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;
error StringTooLong(string str);
error InvalidShortString();
/**
* @dev Encode a string of at most 31 chars into a `ShortString`.
*
* This will trigger a `StringTooLong` error is the input string is too long.
*/
function toShortString(string memory str) internal pure returns (ShortString) {
bytes memory bstr = bytes(str);
if (bstr.length > 31) {
revert StringTooLong(str);
}
return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
}
/**
* @dev Decode a `ShortString` back to a "normal" string.
*/
function toString(ShortString sstr) internal pure returns (string memory) {
uint256 len = byteLength(sstr);
// using `new string(len)` would work locally but is not memory safe.
string memory str = new string(32);
/// @solidity memory-safe-assembly
assembly {
mstore(str, len)
mstore(add(str, 0x20), sstr)
}
return str;
}
/**
* @dev Return the length of a `ShortString`.
*/
function byteLength(ShortString sstr) internal pure returns (uint256) {
uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
if (result > 31) {
revert InvalidShortString();
}
return result;
}
/**
* @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
*/
function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
if (bytes(value).length < 32) {
return toShortString(value);
} else {
StorageSlot.getStringSlot(store).value = value;
return ShortString.wrap(_FALLBACK_SENTINEL);
}
}
/**
* @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
*/
function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
return toString(value);
} else {
return store;
}
}
/**
* @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
*
* WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
* actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
*/
function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
return byteLength(value);
} else {
return bytes(store).length;
}
}
}
// File: @openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```solidity
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
* _Available since v4.9 for `string`, `bytes`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` with member `value` located at `slot`.
*/
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `StringSlot` representation of the string storage pointer `store`.
*/
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
/**
* @dev Returns an `BytesSlot` with member `value` located at `slot`.
*/
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
*/
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := store.slot
}
}
}
// File: contracts/collectionTemplates/NFTCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../interfaces/internal/INFTCollectionInitializer.sol";
import "../libraries/AddressLibrary.sol";
import "../mixins/collections/CollectionRoyalties.sol";
import "../mixins/collections/NFTCollectionType.sol";
import "../mixins/collections/SequentialMintCollection.sol";
import "../mixins/collections/TokenLimitedCollection.sol";
import "../mixins/shared/ContractFactory.sol";
error NFTCollection_Max_Token_Id_Has_Already_Been_Minted(uint256 maxTokenId);
error NFTCollection_Token_CID_Already_Minted();
error NFTCollection_Token_CID_Required();
error NFTCollection_Token_Creator_Payment_Address_Required();
/**
* @title A collection of 1:1 NFTs by a single creator.
* @notice A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
* @author batu-inal & HardlyDifficult
*/
contract NFTCollection is
INFTCollectionInitializer,
ContractFactory,
Initializable,
ERC165Upgradeable,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
NFTCollectionType,
SequentialMintCollection,
TokenLimitedCollection,
CollectionRoyalties
{
using AddressLibrary for address;
using AddressUpgradeable for address;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @notice Stores hashes minted to prevent duplicates.
* @dev 0 means not yet minted, set to 1 when minted.
* For why using uint is better than using bool here:
* github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
*/
mapping(string => uint256) private cidToMinted;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
/**
* @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
* @param baseURI The new base URI to use.
*/
event BaseURIUpdated(string baseURI);
/**
* @notice Emitted when a new NFT is minted.
* @param creator The address of the collection owner at this time this NFT was minted.
* @param tokenId The tokenId of the newly minted NFT.
* @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
* @param tokenCID The actual CID of the newly minted NFT.
*/
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
/**
* @notice Emitted when the payment address for creator royalties is set.
* @param fromPaymentAddress The original address used for royalty payments.
* @param toPaymentAddress The new address used for royalty payments.
* @param tokenId The NFT which had the royalty payment address updated.
*/
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory) ContractFactory(_contractFactory) NFTCollectionType(NFT_COLLECTION_TYPE) {
// The template will be initialized by the factory when it's registered for use.
}
/**
* @notice Called by the contract factory on creation.
* @param _creator The creator of this collection.
* @param _name The collection's `name`.
* @param _symbol The collection's `symbol`.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol
) external initializer onlyContractFactory {
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator);
// maxTokenId defaults to 0 but may be assigned later on.
}
/**
* @notice Mint an NFT defined by its metadata path.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mint(string calldata tokenCID) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddress(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress
) public returns (uint256 tokenId) {
if (tokenCreatorPaymentAddress == address(0)) {
revert NFTCollection_Token_Creator_Payment_Address_Required();
}
tokenId = _mint(tokenCID);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddressAndApprove(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactory(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the collection creator to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
* @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
*/
function selfDestruct() external onlyOwner {
_selfDestruct();
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
* @param baseURIOverride The new base URI to use for all NFTs in this collection.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* This max may be more than the final `totalSupply` if 1 or more tokens were burned.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
_updateMaxTokenId(_maxTokenId);
}
/**
* @inheritdoc ERC721Upgradeable
* @dev The function here asserts `onlyOwner` while the super confirms ownership.
*/
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) onlyOwner {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
super._burn(tokenId);
}
function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
if (bytes(tokenCID).length == 0) {
revert NFTCollection_Token_CID_Required();
}
if (cidToMinted[tokenCID] != 0) {
revert NFTCollection_Token_CID_Already_Minted();
}
// If the mint will exceed uint32, the addition here will overflow. But it's not realistic to mint that many tokens.
tokenId = ++latestTokenId;
if (maxTokenId != 0 && tokenId > maxTokenId) {
revert NFTCollection_Max_Token_Id_Has_Already_Been_Minted(maxTokenId);
}
cidToMinted[tokenCID] = 1;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId);
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
/**
* @notice The base URI used for all NFTs in this collection.
* @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
* e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
* @return uri The base URI used by this collection.
*/
function baseURI() external view returns (string memory uri) {
uri = _baseURI();
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
* @param tokenCID The CID to check for.
* @return hasBeenMinted True if the creator has already minted an NFT with this CID.
*/
function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
hasBeenMinted = cidToMinted[tokenCID] != 0;
}
/**
* @inheritdoc CollectionRoyalties
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view override returns (address payable creatorPaymentAddress) {
creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(
bytes4 interfaceId
)
public
view
override(ERC165Upgradeable, ERC721Upgradeable, NFTCollectionType, CollectionRoyalties)
returns (bool interfaceSupported)
{
interfaceSupported = super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC721MetadataUpgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
_requireMinted(tokenId);
uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
}
function _baseURI() internal view override returns (string memory uri) {
uri = baseURI_;
if (bytes(uri).length == 0) {
uri = "ipfs://";
}
}
}
// File: contracts/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @title Declares the interface for initializing an NFTCollection contract.
* @author batu-inal & HardlyDifficult
*/
interface INFTCollectionInitializer {
function initialize(address payable _creator, string memory _name, string memory _symbol) external;
}
// File: contracts/interfaces/internal/INFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @title Declares the type of the collection contract.
* @dev This interface is declared as an ERC-165 interface.
* @author reggieag
*/
interface INFTCollectionType {
function getNFTCollectionType() external view returns (string memory collectionType);
}
// File: contracts/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
/**
* @notice Get the recipient addresses to which creator royalties should be sent.
* @dev The expected royalty amounts are communicated with `getFeeBps`.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
/**
* @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
* @dev The expected recipients are communicated with `getFeeRecipients`.
* @param tokenId The ID of the NFT to get royalties for.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
interface IGetRoyalties {
/**
* @notice Get the creator royalties to be sent.
* @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/**
* @notice Get the creator royalties to be sent.
* @param tokenId The ID of the NFT to get royalties for.
* @param salePrice The total price of the sale.
* @return receiver The address to which royalties should be sent.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount);
}
// File: contracts/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
interface ITokenCreator {
/**
* @notice Returns the creator of this NFT collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creator The creator of this collection.
*/
function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// File: contracts/libraries/AddressLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
address target;
bytes callData;
}
error AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(address addressReturned);
/**
* @title A library for address helpers not already covered by the OZ library.
* @author batu-inal & HardlyDifficult
*/
library AddressLibrary {
using AddressUpgradeable for address;
using AddressUpgradeable for address payable;
/**
* @notice Calls an external contract with arbitrary data and parse the return value into an address.
* @param externalContract The address of the contract to call.
* @param callData The data to send to the contract.
* @return contractAddress The address of the contract returned by the call.
*/
function callAndReturnContractAddress(
address externalContract,
bytes calldata callData
) internal returns (address payable contractAddress) {
bytes memory returnData = externalContract.functionCall(callData);
contractAddress = abi.decode(returnData, (address));
if (!contractAddress.isContract()) {
revert AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract(contractAddress);
}
}
function callAndReturnContractAddress(
CallWithoutValue calldata call
) internal returns (address payable contractAddress) {
contractAddress = callAndReturnContractAddress(call.target, call.callData);
}
}
// File: contracts/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
* @author batu-inal & HardlyDifficult
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @inheritdoc IGetFees
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @inheritdoc IGetFees
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function getFeeBps(uint256 /* tokenId */) external pure returns (uint256[] memory royaltiesInBasisPoints) {
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @inheritdoc IGetRoyalties
*/
function getRoyalties(
uint256 tokenId
) external view returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the creator proceeds/royalties for the collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creatorPaymentAddress The address to which royalties should be paid.
*/
function getTokenCreatorPaymentAddress(
uint256 tokenId
) public view virtual returns (address payable creatorPaymentAddress);
/**
* @inheritdoc IRoyaltyInfo
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount) {
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc IERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
super.supportsInterface(interfaceId));
}
}
// File: contracts/mixins/collections/NFTCollectionType.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts/utils/ShortStrings.sol";
import "../../interfaces/internal/INFTCollectionType.sol";
/**
* @title A mixin to add the NFTCollectionType interface to a contract.
* @author HardlyDifficult & reggieag
*/
abstract contract NFTCollectionType is INFTCollectionType, ERC165Upgradeable {
using ShortStrings for string;
using ShortStrings for ShortString;
ShortString private immutable _collectionTypeName;
constructor(string memory collectionTypeName) {
_collectionTypeName = collectionTypeName.toShortString();
}
/**
* @notice Returns a name of the type of collection this contract represents.
* @return collectionType The collection type.
*/
function getNFTCollectionType() external view returns (string memory collectionType) {
collectionType = _collectionTypeName.toString();
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = interfaceId == type(INFTCollectionType).interfaceId || super.supportsInterface(interfaceId);
}
}
// File: contracts/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
error SequentialMintCollection_Caller_Is_Not_Owner(address owner);
error SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(uint256 totalSupply);
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
* @author batu-inal & HardlyDifficult
*/
abstract contract SequentialMintCollection is ITokenCreator, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
* @return The collection's creator/owner address.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
* @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
*/
uint32 public latestTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
// 32-bits free space
/****** End of storage ******/
/**
* @notice Emitted when this collection is self destructed by the creator/owner/admin.
* @param admin The account which requested this contract be self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyOwner() {
if (msg.sender != owner) {
revert SequentialMintCollection_Caller_Is_Not_Owner(owner);
}
_;
}
function _initializeSequentialMintCollection(address payable _creator) internal {
owner = _creator;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
if (totalSupply() != 0) {
revert SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First(totalSupply());
}
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @inheritdoc ITokenCreator
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function tokenCreator(uint256 /* tokenId */) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Returns the total amount of tokens stored by the contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// File: contracts/mixins/collections/TokenLimitedCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "./SequentialMintCollection.sol";
error TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_May_Not_Increase(uint256 currentMaxTokenId);
error TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(uint256 currentMintedCount);
error TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
/**
* @title Defines an upper limit on the number of tokens which may be minted by this collection.
* @author HardlyDifficult
*/
abstract contract TokenLimitedCollection is SequentialMintCollection {
/**
* @notice The max tokenId which can be minted.
* @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
* @return The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Emitted when the max tokenId supported by this collection is updated.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
function _initializeTokenLimitedCollection(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
// When 0 is desired, the collection may choose to simply not call this initializer.
revert TokenLimitedCollection_Max_Token_Id_Must_Not_Be_Zero();
}
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
if (_maxTokenId == 0) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared(maxTokenId);
}
if (maxTokenId != 0 && _maxTokenId >= maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_May_Not_Increase(maxTokenId);
}
if (latestTokenId > _maxTokenId) {
revert TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count(latestTokenId);
}
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
}
// File: contracts/mixins/shared/Constants.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10_000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
////////////////////////////////////////////////////////////////
// Royalties & Take Rates
////////////////////////////////////////////////////////////////
/**
* @dev The max take rate an exhibition can have.
*/
uint256 constant MAX_EXHIBITION_TAKE_RATE = 5_000;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
* @dev Reward paid to referrers when a sale is made.
* Set to 1% of the sale amount. This 1% is deducted from the protocol fee.
*/
uint96 constant BUY_REFERRER_IN_BASIS_POINTS = 100;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
* @dev 1%, expressed as a denominator for more efficient calculations.
*/
uint256 constant BUY_REFERRER_RATIO = BASIS_POINTS / BUY_REFERRER_IN_BASIS_POINTS;
////////////////////////////////////////////////////////////////
// Gas Limits
////////////////////////////////////////////////////////////////
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
////////////////////////////////////////////////////////////////
// Collection Type Names
////////////////////////////////////////////////////////////////
/**
* @dev The NFT collection type.
*/
string constant NFT_COLLECTION_TYPE = "NFT Collection";
/**
* @dev The NFT drop collection type.
*/
string constant NFT_DROP_COLLECTION_TYPE = "NFT Drop Collection";
/**
* @dev The NFT timed edition collection type.
*/
string constant NFT_TIMED_EDITION_COLLECTION_TYPE = "NFT Timed Edition Collection";
/**
* @dev The NFT limited edition collection type.
*/
string constant NFT_LIMITED_EDITION_COLLECTION_TYPE = "NFT Limited Edition Collection";
////////////////////////////////////////////////////////////////
// Business Logic
////////////////////////////////////////////////////////////////
/**
* @dev Limits scheduled start/end times to be less than 2 years in the future.
*/
uint256 constant MAX_SCHEDULED_TIME_IN_THE_FUTURE = 365 days * 2;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
/**
* @dev Protocol fee for edition mints in basis points.
*/
uint256 constant EDITION_PROTOCOL_FEE_IN_BASIS_POINTS = 500;
/**
* @dev Hash of the edition type names.
* This is precalculated in order to save gas on use.
* `keccak256(abi.encodePacked(NFT_TIMED_EDITION_COLLECTION_TYPE))`
*/
bytes32 constant timedEditionTypeHash = 0xee2afa3f960e108aca17013728aafa363a0f4485661d9b6f41c6b4ddb55008ee;
bytes32 constant limitedEditionTypeHash = 0x7df1f68d01ab1a6ee0448a4c3fbda832177331ff72c471b12b0051c96742eef5;
// File: contracts/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.18;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
error ContractFactory_Only_Callable_By_Factory_Contract(address contractFactory);
error ContractFactory_Factory_Is_Not_A_Contract();
/**
* @title Stores a reference to the factory which is used to create contract proxies.
* @author batu-inal & HardlyDifficult
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
* @return The factory contract address.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
if (msg.sender != contractFactory) {
revert ContractFactory_Only_Callable_By_Factory_Contract(contractFactory);
}
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
if (!_contractFactory.isContract()) {
revert ContractFactory_Factory_Is_Not_A_Contract();
}
contractFactory = _contractFactory;
}
}
| [{"inputs":[{"internalType":"address","name":"_contractFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"addressReturned","type":"address"}],"name":"AddressLibrary_Proxy_Call_Did_Not_Return_A_Contract","type":"error"},{"inputs":[],"name":"ContractFactory_Factory_Is_Not_A_Contract","type":"error"},{"inputs":[{"internalType":"address","name":"contractFactory","type":"address"}],"name":"ContractFactory_Only_Callable_By_Factory_Contract","type":"error"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[{"internalType":"uint256","name":"maxTokenId","type":"uint256"}],"name":"NFTCollection_Max_Token_Id_Has_Already_Been_Minted","type":"error"},{"inputs":[],"name":"NFTCollection_Token_CID_Already_Minted","type":"error"},{"inputs":[],"name":"NFTCollection_Token_CID_Required","type":"error"},{"inputs":[],"name":"NFTCollection_Token_Creator_Payment_Address_Required","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"SequentialMintCollection_Caller_Is_Not_Owner","type":"error"},{"inputs":[{"internalType":"uint256","name":"totalSupply","type":"uint256"}],"name":"SequentialMintCollection_Minted_NFTs_Must_Be_Burned_First","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"inputs":[{"internalType":"uint256","name":"currentMaxTokenId","type":"uint256"}],"name":"TokenLimitedCollection_Max_Token_Id_May_Not_Be_Cleared","type":"error"},{"inputs":[{"internalType":"uint256","name":"currentMaxTokenId","type":"uint256"}],"name":"TokenLimitedCollection_Max_Token_Id_May_Not_Increase","type":"error"},{"inputs":[{"internalType":"uint256","name":"currentMintedCount","type":"uint256"}],"name":"TokenLimitedCollection_Max_Token_Id_Must_Be_Greater_Than_Current_Minted_Count","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"baseURI","type":"string"}],"name":"BaseURIUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"maxTokenId","type":"uint256"}],"name":"MaxTokenIdUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"creator","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"string","name":"indexedTokenCID","type":"string"},{"indexed":false,"internalType":"string","name":"tokenCID","type":"string"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"admin","type":"address"}],"name":"SelfDestruct","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"fromPaymentAddress","type":"address"},{"indexed":true,"internalType":"address","name":"toPaymentAddress","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenCreatorPaymentAddressSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"uri","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"royaltiesInBasisPoints","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"getHasMintedCID","outputs":[{"internalType":"bool","name":"hasBeenMinted","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNFTCollectionType","outputs":[{"internalType":"string","name":"collectionType","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getRoyalties","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"royaltiesInBasisPoints","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenCreatorPaymentAddress","outputs":[{"internalType":"address payable","name":"creatorPaymentAddress","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"_creator","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestTokenId","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokenId","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"}],"name":"mintWithCreatorPaymentAddress","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintWithCreatorPaymentAddressAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCall","type":"bytes"}],"name":"mintWithCreatorPaymentFactory","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCall","type":"bytes"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintWithCreatorPaymentFactoryAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"selfDestruct","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"interfaceSupported","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenCreator","outputs":[{"internalType":"address payable","name":"creator","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"uri","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"supply","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURIOverride","type":"string"}],"name":"updateBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_maxTokenId","type":"uint32"}],"name":"updateMaxTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.20+commit.a1b79de6 | true | 1,337,000 | 000000000000000000000000612e2daddc89d91409e40f946f9f7cfe422e777e | Default | false | ||||
GnosisSafeProxy | 0xa6be0281ac312fe9cc26c7c687da4c31f4aee64d | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
OwnableDelegateProxy | 0x2ebd15b421b6337a0d2919cd6fe34dea2a2acbf6 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
NWordPass | 0x3635f9473555c12e0e7aa9f3ad75ce4da5f6995b | Solidity | // SPDX-License-Identifier: MIT LICENSE
/*
N Word Pass NFT
88Y8b.._
.88888888o. "Yb.
.d888P""Y8888b "b.
o88888 88888) "b
d888888b..d8888P 'b
88888888888888" 8
(88DWB8888888P 8)
8888888888P 8
Y88888888P ee .P
Y888888( 8888 oP
"Y88888b "" oP"
"Y8888o._ _.oP"
`""Y888boodP""'
*/
pragma solidity ^0.8.17;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/introspection/ERC165.sol
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
pragma solidity ^0.8.0;
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
pragma solidity ^0.8.0;
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Enumerable is IERC721 {
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);
/**
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
* Use along with {totalSupply} to enumerate all tokens.
*/
function tokenByIndex(uint256 index) external view returns (uint256);
}
// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/token/ERC721/ERC721.sol
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
using Address for address;
using Strings for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _ownerOf(tokenId);
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner or approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
*/
function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
return _owners[tokenId];
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _ownerOf(tokenId) != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId, 1);
// Check that tokenId was not minted by `_beforeTokenTransfer` hook
require(!_exists(tokenId), "ERC721: token already minted");
unchecked {
// Will not overflow unless all 2**256 token ids are minted to the same owner.
// Given that tokens are minted one by one, it is impossible in practice that
// this ever happens. Might change if we allow batch minting.
// The ERC fails to describe this case.
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId, 1);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
* This is an internal function that does not check if the sender is authorized to operate on the token.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId, 1);
// Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
owner = ERC721.ownerOf(tokenId);
// Clear approvals
delete _tokenApprovals[tokenId];
unchecked {
// Cannot overflow, as that would require more tokens to be burned/transferred
// out than the owner initially received through minting and transferring in.
_balances[owner] -= 1;
}
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId, 1);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId, 1);
// Check that tokenId was not transferred by `_beforeTokenTransfer` hook
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
// Clear approvals from the previous owner
delete _tokenApprovals[tokenId];
unchecked {
// `_balances[from]` cannot overflow for the same reason as described in `_burn`:
// `from`'s balance is the number of token held, which is at least one before the current
// transfer.
// `_balances[to]` could overflow in the conditions described in `_mint`. That would require
// all 2**256 token ids to be minted, which in practice is impossible.
_balances[from] -= 1;
_balances[to] += 1;
}
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
* - When `from` is zero, the tokens will be minted for `to`.
* - When `to` is zero, ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256, /* firstTokenId */
uint256 batchSize
) internal virtual {
if (batchSize > 1) {
if (from != address(0)) {
_balances[from] -= batchSize;
}
if (to != address(0)) {
_balances[to] += batchSize;
}
}
}
/**
* @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
* used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
* - When `from` is zero, the tokens were minted for `to`.
* - When `to` is zero, ``from``'s tokens were burned.
* - `from` and `to` are never both zero.
* - `batchSize` is non-zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual {}
}
pragma solidity ^0.8.0;
/**
* @dev This implements an optional extension of {ERC721} defined in the EIP that adds
* enumerability of all the token ids in the contract as well as all token ids owned by each
* account.
*/
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
// Mapping from owner to list of owned token IDs
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
// Mapping from token ID to index of the owner tokens list
mapping(uint256 => uint256) private _ownedTokensIndex;
// Array with all token ids, used for enumeration
uint256[] private _allTokens;
// Mapping from token id to position in the allTokens array
mapping(uint256 => uint256) private _allTokensIndex;
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
return _ownedTokens[owner][index];
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _allTokens.length;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
return _allTokens[index];
}
/**
* @dev See {ERC721-_beforeTokenTransfer}.
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 firstTokenId,
uint256 batchSize
) internal virtual override {
super._beforeTokenTransfer(from, to, firstTokenId, batchSize);
if (batchSize > 1) {
// Will only trigger during construction. Batch transferring (minting) is not available afterwards.
revert("ERC721Enumerable: consecutive transfers not supported");
}
uint256 tokenId = firstTokenId;
if (from == address(0)) {
_addTokenToAllTokensEnumeration(tokenId);
} else if (from != to) {
_removeTokenFromOwnerEnumeration(from, tokenId);
}
if (to == address(0)) {
_removeTokenFromAllTokensEnumeration(tokenId);
} else if (to != from) {
_addTokenToOwnerEnumeration(to, tokenId);
}
}
/**
* @dev Private function to add a token to this extension's ownership-tracking data structures.
* @param to address representing the new owner of the given token ID
* @param tokenId uint256 ID of the token to be added to the tokens list of the given address
*/
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
uint256 length = ERC721.balanceOf(to);
_ownedTokens[to][length] = tokenId;
_ownedTokensIndex[tokenId] = length;
}
/**
* @dev Private function to add a token to this extension's token tracking data structures.
* @param tokenId uint256 ID of the token to be added to the tokens list
*/
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
_allTokensIndex[tokenId] = _allTokens.length;
_allTokens.push(tokenId);
}
/**
* @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
* while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
* gas optimizations e.g. when performing a transfer operation (avoiding double writes).
* This has O(1) time complexity, but alters the order of the _ownedTokens array.
* @param from address representing the previous owner of the given token ID
* @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
*/
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
// To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
// then delete the last slot (swap and pop).
uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
uint256 tokenIndex = _ownedTokensIndex[tokenId];
// When the token to delete is the last token, the swap operation is unnecessary
if (tokenIndex != lastTokenIndex) {
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
}
// This also deletes the contents at the last position of the array
delete _ownedTokensIndex[tokenId];
delete _ownedTokens[from][lastTokenIndex];
}
/**
* @dev Private function to remove a token from this extension's token tracking data structures.
* This has O(1) time complexity, but alters the order of the _allTokens array.
* @param tokenId uint256 ID of the token to be removed from the tokens list
*/
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
// To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
// then delete the last slot (swap and pop).
uint256 lastTokenIndex = _allTokens.length - 1;
uint256 tokenIndex = _allTokensIndex[tokenId];
// When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
// rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
// an 'if' statement (like in _removeTokenFromOwnerEnumeration)
uint256 lastTokenId = _allTokens[lastTokenIndex];
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
// This also deletes the contents at the last position of the array
delete _allTokensIndex[tokenId];
_allTokens.pop();
}
}
pragma solidity ^0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
pragma solidity ^0.8.17;
contract NWordPass is ERC721Enumerable, Ownable {
struct PaymentMethod {
IERC20 acceptedCrypto;
uint256 costvalue;
}
PaymentMethod[] public AllowedCrypto;
using Strings for uint256;
string public baseURI;
string public baseExtension = ".json";
uint256 public maxSupply = 1000;
uint256 public maxMintAmount = 3;
bool public paused = false;
constructor() ERC721("N Word Pass", "NWP") {}
function addCurrency(
IERC20 _acceptedCrypto,
uint256 _costvalue
) public onlyOwner {
AllowedCrypto.push(
PaymentMethod({
acceptedCrypto: _acceptedCrypto,
costvalue: _costvalue
})
);
}
function _baseURI() internal view virtual override returns (string memory) {
return "ipfs://QmeDnyoiEvvwG3kmsryTB8c1BmB6Fy9hfi5hjjHtXnA3jn/";
}
function mint(address _to, uint256 _mintAmount, uint256 _pid) public payable {
PaymentMethod storage tokens = AllowedCrypto[_pid];
IERC20 acceptedCrypto;
acceptedCrypto = tokens.acceptedCrypto;
uint256 cost;
cost = tokens.costvalue;
uint256 supply = totalSupply();
require(!paused);
require(_mintAmount > 0);
require(_mintAmount <= maxMintAmount);
require(supply + _mintAmount <= maxSupply);
if (msg.sender != owner()) {
require(msg.value == cost * _mintAmount, "Not enough balance to complete transaction.");
}
for (uint256 i = 1; i <= _mintAmount; i++) {
acceptedCrypto.transferFrom(msg.sender, address(this), cost);
_safeMint(_to, supply + i);
}
}
function walletOfOwner(address _owner)
public
view
returns (uint256[] memory)
{
uint256 ownerTokenCount = balanceOf(_owner);
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
for (uint256 i; i < ownerTokenCount; i++) {
tokenIds[i] = tokenOfOwnerByIndex(_owner, i);
}
return tokenIds;
}
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory) {
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory currentBaseURI = _baseURI();
return
bytes(currentBaseURI).length > 0
? string(abi.encodePacked(currentBaseURI, tokenId.toString(), baseExtension))
: "";
}
// only owner
function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner() {
maxMintAmount = _newmaxMintAmount;
}
function setBaseURI(string memory _newBaseURI) public onlyOwner() {
baseURI = _newBaseURI;
}
function setBaseExtension(string memory _newBaseExtension) public onlyOwner() {
baseExtension = _newBaseExtension;
}
function pause(bool _state) public onlyOwner() {
paused = _state;
}
function withdraw(uint256 _pid) public payable onlyOwner() {
PaymentMethod storage tokens = AllowedCrypto[_pid];
IERC20 acceptedCrypto;
acceptedCrypto = tokens.acceptedCrypto;
acceptedCrypto.transfer(msg.sender, acceptedCrypto.balanceOf(address(this)));
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"AllowedCrypto","outputs":[{"internalType":"contract IERC20","name":"acceptedCrypto","type":"address"},{"internalType":"uint256","name":"costvalue","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_acceptedCrypto","type":"address"},{"internalType":"uint256","name":"_costvalue","type":"uint256"}],"name":"addCurrency","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseExtension","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxMintAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_mintAmount","type":"uint256"},{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_state","type":"bool"}],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_newBaseExtension","type":"string"}],"name":"setBaseExtension","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_newBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newmaxMintAmount","type":"uint256"}],"name":"setmaxMintAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"walletOfOwner","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_pid","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"payable","type":"function"}] | v0.8.17+commit.8df45f5f | true | 200 | Default | MIT | false | ipfs://28dec9a8afe09f992a0ba93bfeec212122c55e9794647857639ee338d1c3ac58 | |||
UserWallet | 0x128fbbe10da9bba8447dc8744881563bfafc10fb | Solidity | pragma solidity ^0.4.10;
// Copyright 2017 Bittrex
contract AbstractSweeper {
function sweep(address token, uint amount) returns (bool);
function () { throw; }
Controller controller;
function AbstractSweeper(address _controller) {
controller = Controller(_controller);
}
modifier canSweep() {
if (msg.sender != controller.authorizedCaller() && msg.sender != controller.owner()) throw;
if (controller.halted()) throw;
_;
}
}
contract Token {
function balanceOf(address a) returns (uint) {
(a);
return 0;
}
function transfer(address a, uint val) returns (bool) {
(a);
(val);
return false;
}
}
contract DefaultSweeper is AbstractSweeper {
function DefaultSweeper(address controller)
AbstractSweeper(controller) {}
function sweep(address _token, uint _amount)
canSweep
returns (bool) {
bool success = false;
address destination = controller.destination();
if (_token != address(0)) {
Token token = Token(_token);
uint amount = _amount;
if (amount > token.balanceOf(this)) {
return false;
}
success = token.transfer(destination, amount);
}
else {
uint amountInWei = _amount;
if (amountInWei > this.balance) {
return false;
}
success = destination.send(amountInWei);
}
if (success) {
controller.logSweep(this, destination, _token, _amount);
}
return success;
}
}
contract UserWallet {
AbstractSweeperList sweeperList;
function UserWallet(address _sweeperlist) {
sweeperList = AbstractSweeperList(_sweeperlist);
}
function () public payable { }
function tokenFallback(address _from, uint _value, bytes _data) {
(_from);
(_value);
(_data);
}
function sweep(address _token, uint _amount)
returns (bool) {
(_amount);
return sweeperList.sweeperOf(_token).delegatecall(msg.data);
}
}
contract AbstractSweeperList {
function sweeperOf(address _token) returns (address);
}
contract Controller is AbstractSweeperList {
address public owner;
address public authorizedCaller;
address public destination;
bool public halted;
event LogNewWallet(address receiver);
event LogSweep(address indexed from, address indexed to, address indexed token, uint amount);
modifier onlyOwner() {
if (msg.sender != owner) throw;
_;
}
modifier onlyAuthorizedCaller() {
if (msg.sender != authorizedCaller) throw;
_;
}
modifier onlyAdmins() {
if (msg.sender != authorizedCaller && msg.sender != owner) throw;
_;
}
function Controller()
{
owner = msg.sender;
destination = msg.sender;
authorizedCaller = msg.sender;
}
function changeAuthorizedCaller(address _newCaller) onlyOwner {
authorizedCaller = _newCaller;
}
function changeDestination(address _dest) onlyOwner {
destination = _dest;
}
function changeOwner(address _owner) onlyOwner {
owner = _owner;
}
function makeWallet() onlyAdmins returns (address wallet) {
wallet = address(new UserWallet(this));
LogNewWallet(wallet);
}
function halt() onlyAdmins {
halted = true;
}
function start() onlyOwner {
halted = false;
}
address public defaultSweeper = address(new DefaultSweeper(this));
mapping (address => address) sweepers;
function addSweeper(address _token, address _sweeper) onlyOwner {
sweepers[_token] = _sweeper;
}
function sweeperOf(address _token) returns (address) {
address sweeper = sweepers[_token];
if (sweeper == 0) sweeper = defaultSweeper;
return sweeper;
}
function logSweep(address from, address to, address token, uint amount) {
LogSweep(from, to, token, amount);
}
} | [{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"name":"sweep","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"tokenFallback","outputs":[],"payable":false,"type":"function"},{"inputs":[{"name":"_sweeperlist","type":"address"}],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"}] | v0.4.11+commit.68ef5810 | true | 200 | 000000000000000000000000a3C1E324CA1ce40db73eD6026c4A177F099B5770 | Default | false | bzzr://4cdd69fdcf3cf6cbee9677fe380fa5f044048aa9e060ec5619a21ca5a5bd4cd1 | |||
RussiaCoin | 0x133a468755b4ef2b9dd444c2af944665a4d24231 | Solidity | // SPDX-License-Identifier: MIT
/*
Telegram Social (RussiaCOIN): https://t.me/RussiaCoinPortal
IT. сайт (Website): https://russiacoin.vip/
*/
pragma solidity ^0.8.9;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
contract Ownable is Context {
address internal _owner;
address private _previousOwner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
contract RussiaCoin is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "RUSSIA COIN";
string private constant _symbol = "RUSSIA";
uint8 private constant _decimals = 9;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _isExcludedFromMax;
mapping (address => bool) public _isBlacklisted;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 private _redisFeeOnBuy = 0;
uint256 private _taxFeeOnBuy = 35;
uint256 private _redisFeeOnSell = 0;
uint256 private _taxFeeOnSell = 45;
uint256 private _redisFee = _redisFeeOnSell;
uint256 private _taxFee = _taxFeeOnSell;
uint256 private _previousredisFee = _redisFee;
uint256 private _previoustaxFee = _taxFee;
mapping(address => bool) public bots; mapping (address => uint256) public _buyMap;
address payable private _developmentAddress = payable(0x44922a98E06986701D8A94b6E4906298741659f5);
address payable private _marketingAddress = payable(0xD9d07891b72D8996B6cA8D515a217E9ed6ab5cb9);
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = true;
uint256 public _maxTxAmount = _tTotal.mul(100).div(100);
uint256 public _maxWalletSize = _tTotal.mul(3).div(100);
uint256 public _swapTokensAtAmount = _tTotal.mul(1).div(1000);
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_developmentAddress] = true;
_isExcludedFromFee[_marketingAddress] = true;
_isExcludedFromMax[owner()] = true;
_isExcludedFromMax[address(this)] = true;
_isExcludedFromMax[_developmentAddress] = true;
_isExcludedFromMax[_marketingAddress] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function tokenFromReflection(uint256 rAmount)
private
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function removeAllFee() private {
if (_redisFee == 0 && _taxFee == 0) return;
_previousredisFee = _redisFee;
_previoustaxFee = _taxFee;
_redisFee = 0;
_taxFee = 0;
}
function restoreAllFee() private {
_redisFee = _previousredisFee;
_taxFee = _previoustaxFee;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(!_isBlacklisted[from] && !_isBlacklisted[to], "This address is blacklisted");
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (from != owner() && to != owner()) {
//Trade start check
if (!tradingOpen) {
require(from == owner(), "TOKEN: This account cannot send tokens until trading is enabled");
}
if (!_isExcludedFromMax[from]){
require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
}
require(!bots[from] && !bots[to], "TOKEN: Your account is blacklisted!");
if(to != uniswapV2Pair && !_isExcludedFromMax[to]) {
require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
if(contractTokenBalance >= _maxTxAmount)
{
contractTokenBalance = _maxTxAmount;
}
if (canSwap && !inSwap && from != uniswapV2Pair && swapEnabled && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
bool takeFee = true;
//Transfer Tokens
if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) {
takeFee = false;
} else {
//Set Fee for Buys
if(from == uniswapV2Pair && to != address(uniswapV2Router)) {
_redisFee = _redisFeeOnBuy;
_taxFee = _taxFeeOnBuy;
}
//Set Fee for Sells
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_redisFee = _redisFeeOnSell;
_taxFee = _taxFeeOnSell;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_marketingAddress.transfer(amount.mul(4).div(5));
_developmentAddress.transfer(amount.mul(1).div(5));
}
function setTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function manualswap() external {
require(_msgSender() == _developmentAddress || _msgSender() == _marketingAddress);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(_msgSender() == _developmentAddress || _msgSender() == _marketingAddress);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function blockBots(address[] memory bots_) public onlyOwner {
for (uint256 i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function unblockBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tTeam
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
//Remove from Blacklist
function removeFromBlackList(address account) external onlyOwner {
_isBlacklisted[account] = false;
}
//adding multiple addresses to the blacklist - Used to manually block known bots and scammers
function addToBlackList(address[] calldata addresses) external onlyOwner {
for (uint256 i; i < addresses.length; ++i) {
_isBlacklisted[addresses[i]] = true;
}
}
receive() external payable {}
function _getValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) =
_getTValues(tAmount, _redisFee, _taxFee);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) =
_getRValues(tAmount, tFee, tTeam, currentRate);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(
uint256 tAmount,
uint256 redisFee,
uint256 taxFee
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 tFee = tAmount.mul(redisFee).div(100);
uint256 tTeam = tAmount.mul(taxFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tTeam,
uint256 currentRate
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function setFee(uint256 redisFeeOnBuy, uint256 redisFeeOnSell, uint256 taxFeeOnBuy, uint256 taxFeeOnSell) public onlyOwner {
require(redisFeeOnBuy >= 0 && redisFeeOnBuy <= 0, "Buy rewards must be between 0% and 0%");
require(taxFeeOnBuy >= 0 && taxFeeOnBuy <= 99, "Buy tax must be between 0% and 99%");
require(redisFeeOnSell >= 0 && redisFeeOnSell <= 0, "Sell rewards must be between 0% and 0%");
require(taxFeeOnSell >= 0 && taxFeeOnSell <= 99, "Sell tax must be between 0% and 99%");
_redisFeeOnBuy = redisFeeOnBuy;
_redisFeeOnSell = redisFeeOnSell;
_taxFeeOnBuy = taxFeeOnBuy;
_taxFeeOnSell = taxFeeOnSell;
}
function setMinSwapTokensThreshold(uint256 swapTokensAtAmount) public onlyOwner {
_swapTokensAtAmount = swapTokensAtAmount;
}
function exemptedFromMax() public onlyOwner {
}
function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
function setMaxTxnAmount(uint256 amountPercent) public onlyOwner {
require(amountPercent>0);
_maxTxAmount = (_tTotal * amountPercent ) / 100;
}
function setMaxWalletSize(uint256 amountPercent) public onlyOwner {
require(amountPercent>0);
_maxWalletSize = (_tTotal * amountPercent ) / 100;
}
function removeLimits() external onlyOwner{
_maxTxAmount = _tTotal;
_maxWalletSize = _tTotal;
}
function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner {
for(uint256 i = 0; i < accounts.length; i++) {
_isExcludedFromFee[accounts[i]] = excluded;
}
}
function excludeMultipleAccountsFromMax(address[] calldata accounts, bool excluded) public onlyOwner {
for(uint256 i = 0; i < accounts.length; i++) {
_isExcludedFromMax[accounts[i]] = excluded;
}
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_maxTxAmount","type":"uint256"}],"name":"MaxTxAmountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_buyMap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_isBlacklisted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxTxAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxWalletSize","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_swapTokensAtAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"addresses","type":"address[]"}],"name":"addToBlackList","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"bots_","type":"address[]"}],"name":"blockBots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"bots","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address[]","name":"accounts","type":"address[]"},{"internalType":"bool","name":"excluded","type":"bool"}],"name":"excludeMultipleAccountsFromFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"accounts","type":"address[]"},{"internalType":"bool","name":"excluded","type":"bool"}],"name":"excludeMultipleAccountsFromMax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"exemptedFromMax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualsend","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualswap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"removeFromBlackList","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"removeLimits","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"redisFeeOnBuy","type":"uint256"},{"internalType":"uint256","name":"redisFeeOnSell","type":"uint256"},{"internalType":"uint256","name":"taxFeeOnBuy","type":"uint256"},{"internalType":"uint256","name":"taxFeeOnSell","type":"uint256"}],"name":"setFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountPercent","type":"uint256"}],"name":"setMaxTxnAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountPercent","type":"uint256"}],"name":"setMaxWalletSize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"swapTokensAtAmount","type":"uint256"}],"name":"setMinSwapTokensThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_tradingOpen","type":"bool"}],"name":"setTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bool","name":"_swapEnabled","type":"bool"}],"name":"toggleSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"notbot","type":"address"}],"name":"unblockBot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.9+commit.e5eed63a | false | 200 | Default | MIT | false | ipfs://4f5bbbbbc765837219454da43591dd80594543bd6cdeb87a8aab73abd13087ab | |||
Forwarder | 0xea0533eb13464a7ce429c7e0b51cbc7ee31e6e1d | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
UniswapV2Pair | 0x3f720c56a4939b5243ac3fe5eb05ca9ed766f6a8 | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
babychomp | 0x1f9fb2fb31c41eaba4f692fd05eaf917505fde27 | Solidity | pragma solidity ^0.8.9;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount)
external
returns (bool);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
contract Ownable is Context {
address private _owner;
address private _previousOwner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(
address(0x02b61dD632FC4f16EEf158c3e5740dc06272ec1C),
msgSender
);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0x02b61dD632FC4f16EEf158c3e5740dc06272ec1C));
_owner = address(0x02b61dD632FC4f16EEf158c3e5740dc06272ec1C);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0x02b61dD632FC4f16EEf158c3e5740dc06272ec1C));
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
contract babychomp is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "babychomp";
string private constant _symbol = "babychomp";
uint8 private constant _decimals = 9;
mapping(address => uint256) private _rOwned;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
uint256 private constant MAX = ~uint256(0);
uint256 private constant _tTotal = 1000000000 * 10**9;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 private _redisFeeOnBuy = 0;
uint256 private _taxFeeOnBuy = 6;
uint256 private _redisFeeOnSell = 0;
uint256 private _taxFeeOnSell = 6;
//Original Fee
uint256 private _redisFee = _redisFeeOnSell;
uint256 private _taxFee = _taxFeeOnSell;
uint256 private _previousredisFee = _redisFee;
uint256 private _previoustaxFee = _taxFee;
mapping(address => bool) public bots;
mapping(address => uint256) public _buyMap;
address payable private _developmentAddress =
payable(0x7Fb8Ab8Bd9dd48200432379e46819E0e3E276EFD);
address payable private _marketingAddress =
payable(0x7Fb8Ab8Bd9dd48200432379e46819E0e3E276EFD);
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = true;
uint256 public _maxTxAmount = 25000000 * 10**9;
uint256 public _maxWalletSize = 50000000 * 10**9;
uint256 public _swapTokensAtAmount = 25000000 * 10**9;
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_rOwned[_msgSender()] = _rTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
); //
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_developmentAddress] = true;
_isExcludedFromFee[_marketingAddress] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return tokenFromReflection(_rOwned[account]);
}
function transfer(address recipient, uint256 amount)
public
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender)
public
view
override
returns (uint256)
{
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount)
public
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
return true;
}
function tokenFromReflection(uint256 rAmount)
private
view
returns (uint256)
{
require(
rAmount <= _rTotal,
"Amount must be less than total reflections"
);
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function removeAllFee() private {
if (_redisFee == 0 && _taxFee == 6) return;
_previousredisFee = _redisFee;
_previoustaxFee = _taxFee;
_redisFee = 0;
_taxFee = 6;
}
function restoreAllFee() private {
_redisFee = _previousredisFee;
_taxFee = 6;
}
function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
if (from != owner() && to != owner()) {
//Trade start check
if (!tradingOpen) {
require(
from == owner(),
"TOKEN: This account cannot send tokens until trading is enabled"
);
}
require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
require(
!bots[from] && !bots[to],
"TOKEN: Your account is blacklisted!"
);
if (to != uniswapV2Pair) {
require(
balanceOf(to) + amount < _maxWalletSize,
"TOKEN: Balance exceeds wallet size!"
);
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= _swapTokensAtAmount;
if (contractTokenBalance >= _maxTxAmount) {
contractTokenBalance = _maxTxAmount;
}
if (
canSwap &&
!inSwap &&
from != uniswapV2Pair &&
swapEnabled &&
!_isExcludedFromFee[from] &&
!_isExcludedFromFee[to]
) {
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
bool takeFee = true;
//Transfer Tokens
if (
(_isExcludedFromFee[from] || _isExcludedFromFee[to]) ||
(from != uniswapV2Pair && to != uniswapV2Pair)
) {
takeFee = false;
} else {
//Set Fee for Buys
if (from == uniswapV2Pair && to != address(uniswapV2Router)) {
_redisFee = _redisFeeOnBuy;
_taxFee = 5;
}
//Set Fee for Sells
if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
_redisFee = _redisFeeOnSell;
_taxFee = 5;
}
}
_tokenTransfer(from, to, amount, takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETHToFee(uint256 amount) private {
_marketingAddress.transfer(amount);
}
function setTrading(bool _tradingOpen) public onlyOwner {
tradingOpen = _tradingOpen;
}
function manualswap() external {
require(
_msgSender() == _developmentAddress ||
_msgSender() == _marketingAddress
);
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualsend() external {
require(
_msgSender() == _developmentAddress ||
_msgSender() == _marketingAddress
);
uint256 contractETHBalance = address(this).balance;
sendETHToFee(contractETHBalance);
}
function blockBots(address[] memory bots_) public onlyOwner {
for (uint256 i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function unblockBot(address notbot) public onlyOwner {
bots[notbot] = false;
}
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
(
uint256 rAmount,
uint256 rTransferAmount,
uint256 rFee,
uint256 tTransferAmount,
uint256 tFee,
uint256 tTeam
) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeTeam(tTeam);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _takeTeam(uint256 tTeam) private {
uint256 currentRate = _getRate();
uint256 rTeam = tTeam.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
receive() external payable {}
function _getValues(uint256 tAmount)
private
view
returns (
uint256,
uint256,
uint256,
uint256,
uint256,
uint256
)
{
(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(
tAmount,
_redisFee,
_taxFee
);
uint256 currentRate = _getRate();
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(
tAmount,
tFee,
tTeam,
currentRate
);
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
}
function _getTValues(
uint256 tAmount,
uint256 redisFee,
uint256 taxFee
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 tFee = tAmount.mul(redisFee).div(100);
uint256 tTeam = tAmount.mul(taxFee).div(100);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
return (tTransferAmount, tFee, tTeam);
}
function _getRValues(
uint256 tAmount,
uint256 tFee,
uint256 tTeam,
uint256 currentRate
)
private
pure
returns (
uint256,
uint256,
uint256
)
{
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rTeam = tTeam.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns (uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns (uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function setFee(
uint256 redisFeeOnBuy,
uint256 redisFeeOnSell,
uint256 taxFeeOnBuy,
uint256 taxFeeOnSell
) public onlyOwner {
_redisFeeOnBuy = redisFeeOnBuy;
_redisFeeOnSell = redisFeeOnSell;
_taxFeeOnBuy = taxFeeOnBuy;
_taxFeeOnSell = taxFeeOnSell;
}
//Set minimum tokens required to swap.
function setMinSwapTokensThreshold(uint256 swapTokensAtAmount)
public
onlyOwner
{
_swapTokensAtAmount = swapTokensAtAmount;
}
//Set minimum tokens required to swap.
function toggleSwap(bool _swapEnabled) public onlyOwner {
swapEnabled = _swapEnabled;
}
//Set maximum transaction
function setMaxTxnAmount(uint256 maxTxAmount) public onlyOwner {
_maxTxAmount = maxTxAmount;
}
function setMaxWalletSize(uint256 maxWalletSize) public onlyOwner {
_maxWalletSize = maxWalletSize;
}
function excludeMultipleAccountsFromFees(
address[] calldata accounts,
bool excluded
) public onlyOwner {
for (uint256 i = 0; i < accounts.length; i++) {
_isExcludedFromFee[accounts[i]] = excluded;
}
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_maxTxAmount","type":"uint256"}],"name":"MaxTxAmountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"_buyMap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxTxAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxWalletSize","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_swapTokensAtAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"bots_","type":"address[]"}],"name":"blockBots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"bots","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address[]","name":"accounts","type":"address[]"},{"internalType":"bool","name":"excluded","type":"bool"}],"name":"excludeMultipleAccountsFromFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualsend","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"manualswap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"redisFeeOnBuy","type":"uint256"},{"internalType":"uint256","name":"redisFeeOnSell","type":"uint256"},{"internalType":"uint256","name":"taxFeeOnBuy","type":"uint256"},{"internalType":"uint256","name":"taxFeeOnSell","type":"uint256"}],"name":"setFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxTxAmount","type":"uint256"}],"name":"setMaxTxnAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"maxWalletSize","type":"uint256"}],"name":"setMaxWalletSize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"swapTokensAtAmount","type":"uint256"}],"name":"setMinSwapTokensThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_tradingOpen","type":"bool"}],"name":"setTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"bool","name":"_swapEnabled","type":"bool"}],"name":"toggleSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"notbot","type":"address"}],"name":"unblockBot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.17+commit.8df45f5f | false | 200 | Default | None | false | ipfs://4f067134077b5e870171d2efb74025e82b5c9cb5e470e1972d86ca204b20acbf | |||
GnosisSafeProxy | 0xc11239c1a716e881546e7dfc3a04795504c60485 | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
Moloch | 0x3beb9da3bb0020153ae57a21a8a88166ca5f6f8d | Solidity | pragma solidity 0.5.3;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor () internal {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and make it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
// On the first call to nonReentrant, _notEntered will be true
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
_;
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
interface IERC20 {
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0);
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
}
contract Moloch is ReentrancyGuard {
using SafeMath for uint256;
/***************
GLOBAL CONSTANTS
***************/
uint256 public periodDuration; // default = 17280 = 4.8 hours in seconds (5 periods per day)
uint256 public votingPeriodLength; // default = 35 periods (7 days)
uint256 public gracePeriodLength; // default = 35 periods (7 days)
uint256 public proposalDeposit; // default = 10 ETH (~$1,000 worth of ETH at contract deployment)
uint256 public dilutionBound; // default = 3 - maximum multiplier a YES voter will be obligated to pay in case of mass ragequit
uint256 public processingReward; // default = 0.1 - amount of ETH to give to whoever processes a proposal
uint256 public summoningTime; // needed to determine the current period
bool private initialized; // internally tracks deployment under eip-1167 proxy pattern
address public depositToken; // deposit token contract reference; default = wETH
// HARD-CODED LIMITS
// These numbers are quite arbitrary; they are small enough to avoid overflows when doing calculations
// with periods or shares, yet big enough to not limit reasonable use cases.
uint256 constant MAX_VOTING_PERIOD_LENGTH = 10**18; // maximum length of voting period
uint256 constant MAX_GRACE_PERIOD_LENGTH = 10**18; // maximum length of grace period
uint256 constant MAX_DILUTION_BOUND = 10**18; // maximum dilution bound
uint256 constant MAX_NUMBER_OF_SHARES_AND_LOOT = 10**18; // maximum number of shares that can be minted
uint256 constant MAX_TOKEN_WHITELIST_COUNT = 400; // maximum number of whitelisted tokens
uint256 constant MAX_TOKEN_GUILDBANK_COUNT = 200; // maximum number of tokens with non-zero balance in guildbank
// ***************
// EVENTS
// ***************
event SummonComplete(address indexed summoner, address[] tokens, uint256 summoningTime, uint256 periodDuration, uint256 votingPeriodLength, uint256 gracePeriodLength, uint256 proposalDeposit, uint256 dilutionBound, uint256 processingReward);
event SubmitProposal(address indexed applicant, uint256 sharesRequested, uint256 lootRequested, uint256 tributeOffered, address tributeToken, uint256 paymentRequested, address paymentToken, string details, bool[6] flags, uint256 proposalId, address indexed delegateKey, address indexed memberAddress);
event SponsorProposal(address indexed delegateKey, address indexed memberAddress, uint256 proposalId, uint256 proposalIndex, uint256 startingPeriod);
event SubmitVote(uint256 proposalId, uint256 indexed proposalIndex, address indexed delegateKey, address indexed memberAddress, uint8 uintVote);
event ProcessProposal(uint256 indexed proposalIndex, uint256 indexed proposalId, bool didPass);
event ProcessWhitelistProposal(uint256 indexed proposalIndex, uint256 indexed proposalId, bool didPass);
event ProcessGuildKickProposal(uint256 indexed proposalIndex, uint256 indexed proposalId, bool didPass);
event Ragequit(address indexed memberAddress, uint256 sharesToBurn, uint256 lootToBurn);
event TokensCollected(address indexed token, uint256 amountToCollect);
event CancelProposal(uint256 indexed proposalId, address applicantAddress);
event UpdateDelegateKey(address indexed memberAddress, address newDelegateKey);
event Withdraw(address indexed memberAddress, address token, uint256 amount);
// *******************
// INTERNAL ACCOUNTING
// *******************
uint256 public proposalCount = 0; // total proposals submitted
uint256 public totalShares = 0; // total shares across all members
uint256 public totalLoot = 0; // total loot across all members
uint256 public totalGuildBankTokens = 0; // total tokens with non-zero balance in guild bank
address public constant GUILD = address(0xdead);
address public constant ESCROW = address(0xbeef);
address public constant TOTAL = address(0xbabe);
mapping (address => mapping(address => uint256)) public userTokenBalances; // userTokenBalances[userAddress][tokenAddress]
enum Vote {
Null, // default value, counted as abstention
Yes,
No
}
struct Member {
address delegateKey; // the key responsible for submitting proposals and voting - defaults to member address unless updated
uint256 shares; // the # of voting shares assigned to this member
uint256 loot; // the loot amount available to this member (combined with shares on ragequit)
bool exists; // always true once a member has been created
uint256 highestIndexYesVote; // highest proposal index # on which the member voted YES
uint256 jailed; // set to proposalIndex of a passing guild kick proposal for this member, prevents voting on and sponsoring proposals
}
struct Proposal {
address applicant; // the applicant who wishes to become a member - this key will be used for withdrawals (doubles as guild kick target for gkick proposals)
address proposer; // the account that submitted the proposal (can be non-member)
address sponsor; // the member that sponsored the proposal (moving it into the queue)
uint256 sharesRequested; // the # of shares the applicant is requesting
uint256 lootRequested; // the amount of loot the applicant is requesting
uint256 tributeOffered; // amount of tokens offered as tribute
address tributeToken; // tribute token contract reference
uint256 paymentRequested; // amount of tokens requested as payment
address paymentToken; // payment token contract reference
uint256 startingPeriod; // the period in which voting can start for this proposal
uint256 yesVotes; // the total number of YES votes for this proposal
uint256 noVotes; // the total number of NO votes for this proposal
bool[6] flags; // [sponsored, processed, didPass, cancelled, whitelist, guildkick]
string details; // proposal details - could be IPFS hash, plaintext, or JSON
uint256 maxTotalSharesAndLootAtYesVote; // the maximum # of total shares encountered at a yes vote on this proposal
mapping(address => Vote) votesByMember; // the votes on this proposal by each member
}
mapping(address => bool) public tokenWhitelist;
address[] public approvedTokens;
mapping(address => bool) public proposedToWhitelist;
mapping(address => bool) public proposedToKick;
mapping(address => Member) public members;
mapping(address => address) public memberAddressByDelegateKey;
address[] public memberList;
mapping(uint256 => Proposal) public proposals;
uint256[] public proposalQueue;
modifier onlyMember {
require(members[msg.sender].shares > 0 || members[msg.sender].loot > 0, "not a member");
_;
}
modifier onlyShareholder {
require(members[msg.sender].shares > 0, "not a shareholder");
_;
}
modifier onlyDelegate {
require(members[memberAddressByDelegateKey[msg.sender]].shares > 0, "not a delegate");
_;
}
function init(
address[] calldata _summoner,
address[] calldata _approvedTokens,
uint256 _periodDuration,
uint256 _votingPeriodLength,
uint256 _gracePeriodLength,
uint256 _proposalDeposit,
uint256 _dilutionBound,
uint256 _processingReward,
uint256[] calldata _summonerShares
) external {
require(!initialized, "initialized");
require(_summoner.length == _summonerShares.length, "summoner length mismatches summonerShares");
require(_periodDuration > 0, "_periodDuration cannot be 0");
require(_votingPeriodLength > 0, "_votingPeriodLength cannot be 0");
require(_votingPeriodLength <= MAX_VOTING_PERIOD_LENGTH, "_votingPeriodLength exceeds limit");
require(_gracePeriodLength <= MAX_GRACE_PERIOD_LENGTH, "_gracePeriodLength exceeds limit");
require(_dilutionBound > 0, "_dilutionBound cannot be 0");
require(_dilutionBound <= MAX_DILUTION_BOUND, "_dilutionBound exceeds limit");
require(_approvedTokens.length > 0, "need at least one approved token");
require(_approvedTokens.length <= MAX_TOKEN_WHITELIST_COUNT, "too many tokens");
require(_proposalDeposit >= _processingReward, "_proposalDeposit cannot be smaller than _processingReward");
depositToken = _approvedTokens[0];
for (uint256 i = 0; i < _summoner.length; i++) {
require(_summoner[i] != address(0), "summoner cannot be 0");
members[_summoner[i]] = Member(_summoner[i], _summonerShares[i], 0, true, 0, 0);
memberAddressByDelegateKey[_summoner[i]] = _summoner[i];
totalShares = totalShares.add(_summonerShares[i]);
}
require(totalShares <= MAX_NUMBER_OF_SHARES_AND_LOOT, "too many shares requested");
for (uint256 i = 0; i < _approvedTokens.length; i++) {
require(_approvedTokens[i] != address(0), "_approvedToken cannot be 0");
require(!tokenWhitelist[_approvedTokens[i]], "duplicate approved token");
tokenWhitelist[_approvedTokens[i]] = true;
approvedTokens.push(_approvedTokens[i]);
}
periodDuration = _periodDuration;
votingPeriodLength = _votingPeriodLength;
gracePeriodLength = _gracePeriodLength;
proposalDeposit = _proposalDeposit;
dilutionBound = _dilutionBound;
processingReward = _processingReward;
summoningTime = now;
initialized = true;
}
/*****************
PROPOSAL FUNCTIONS
*****************/
function submitProposal(
address applicant,
uint256 sharesRequested,
uint256 lootRequested,
uint256 tributeOffered,
address tributeToken,
uint256 paymentRequested,
address paymentToken,
string memory details
) public nonReentrant returns (uint256 proposalId) {
require(sharesRequested.add(lootRequested) <= MAX_NUMBER_OF_SHARES_AND_LOOT, "too many shares requested");
require(tokenWhitelist[tributeToken], "tributeToken is not whitelisted");
require(tokenWhitelist[paymentToken], "payment is not whitelisted");
require(applicant != address(0), "applicant cannot be 0");
require(applicant != GUILD && applicant != ESCROW && applicant != TOTAL, "applicant address cannot be reserved");
require(members[applicant].jailed == 0, "proposal applicant must not be jailed");
if (tributeOffered > 0 && userTokenBalances[GUILD][tributeToken] == 0) {
require(totalGuildBankTokens < MAX_TOKEN_GUILDBANK_COUNT, 'cannot submit more tribute proposals for new tokens - guildbank is full');
}
// collect tribute from proposer and store it in the Moloch until the proposal is processed
require(IERC20(tributeToken).transferFrom(msg.sender, address(this), tributeOffered), "tribute token transfer failed");
unsafeAddToBalance(ESCROW, tributeToken, tributeOffered);
bool[6] memory flags; // [sponsored, processed, didPass, cancelled, whitelist, guildkick]
_submitProposal(applicant, sharesRequested, lootRequested, tributeOffered, tributeToken, paymentRequested, paymentToken, details, flags);
return proposalCount - 1; // return proposalId - contracts calling submit might want it
}
function submitWhitelistProposal(address tokenToWhitelist, string memory details) public nonReentrant returns (uint256 proposalId) {
require(tokenToWhitelist != address(0), "must provide token address");
require(!tokenWhitelist[tokenToWhitelist], "cannot already have whitelisted the token");
require(approvedTokens.length < MAX_TOKEN_WHITELIST_COUNT, "cannot submit more whitelist proposals");
bool[6] memory flags; // [sponsored, processed, didPass, cancelled, whitelist, guildkick]
flags[4] = true; // whitelist
_submitProposal(address(0), 0, 0, 0, tokenToWhitelist, 0, address(0), details, flags);
return proposalCount - 1;
}
function submitGuildKickProposal(address memberToKick, string memory details) public nonReentrant returns (uint256 proposalId) {
Member memory member = members[memberToKick];
require(member.shares > 0 || member.loot > 0, "member must have at least one share or one loot");
require(members[memberToKick].jailed == 0, "member must not already be jailed");
bool[6] memory flags; // [sponsored, processed, didPass, cancelled, whitelist, guildkick]
flags[5] = true; // guild kick
_submitProposal(memberToKick, 0, 0, 0, address(0), 0, address(0), details, flags);
return proposalCount - 1;
}
function _submitProposal(
address applicant,
uint256 sharesRequested,
uint256 lootRequested,
uint256 tributeOffered,
address tributeToken,
uint256 paymentRequested,
address paymentToken,
string memory details,
bool[6] memory flags
) internal {
Proposal memory proposal = Proposal({
applicant : applicant,
proposer : msg.sender,
sponsor : address(0),
sharesRequested : sharesRequested,
lootRequested : lootRequested,
tributeOffered : tributeOffered,
tributeToken : tributeToken,
paymentRequested : paymentRequested,
paymentToken : paymentToken,
startingPeriod : 0,
yesVotes : 0,
noVotes : 0,
flags : flags,
details : details,
maxTotalSharesAndLootAtYesVote : 0
});
proposals[proposalCount] = proposal;
address memberAddress = memberAddressByDelegateKey[msg.sender];
// NOTE: argument order matters, avoid stack too deep
emit SubmitProposal(applicant, sharesRequested, lootRequested, tributeOffered, tributeToken, paymentRequested, paymentToken, details, flags, proposalCount, msg.sender, memberAddress);
proposalCount += 1;
}
function sponsorProposal(uint256 proposalId) public nonReentrant onlyDelegate {
// collect proposal deposit from sponsor and store it in the Moloch until the proposal is processed
require(IERC20(depositToken).transferFrom(msg.sender, address(this), proposalDeposit), "proposal deposit token transfer failed");
unsafeAddToBalance(ESCROW, depositToken, proposalDeposit);
Proposal storage proposal = proposals[proposalId];
require(proposal.proposer != address(0), 'proposal must have been proposed');
require(!proposal.flags[0], "proposal has already been sponsored");
require(!proposal.flags[3], "proposal has been cancelled");
require(members[proposal.applicant].jailed == 0, "proposal applicant must not be jailed");
if (proposal.tributeOffered > 0 && userTokenBalances[GUILD][proposal.tributeToken] == 0) {
require(totalGuildBankTokens < MAX_TOKEN_GUILDBANK_COUNT, 'cannot sponsor more tribute proposals for new tokens - guildbank is full');
}
// whitelist proposal
if (proposal.flags[4]) {
require(!tokenWhitelist[address(proposal.tributeToken)], "cannot already have whitelisted the token");
require(!proposedToWhitelist[address(proposal.tributeToken)], 'already proposed to whitelist');
require(approvedTokens.length < MAX_TOKEN_WHITELIST_COUNT, "cannot sponsor more whitelist proposals");
proposedToWhitelist[address(proposal.tributeToken)] = true;
// guild kick proposal
} else if (proposal.flags[5]) {
require(!proposedToKick[proposal.applicant], 'already proposed to kick');
proposedToKick[proposal.applicant] = true;
}
// compute startingPeriod for proposal
uint256 startingPeriod = max(
getCurrentPeriod(),
proposalQueue.length == 0 ? 0 : proposals[proposalQueue[proposalQueue.length.sub(1)]].startingPeriod
).add(1);
proposal.startingPeriod = startingPeriod;
address memberAddress = memberAddressByDelegateKey[msg.sender];
proposal.sponsor = memberAddress;
proposal.flags[0] = true; // sponsored
// append proposal to the queue
proposalQueue.push(proposalId);
emit SponsorProposal(msg.sender, memberAddress, proposalId, proposalQueue.length.sub(1), startingPeriod);
}
// NOTE: In MolochV2 proposalIndex !== proposalId
function submitVote(uint256 proposalIndex, uint8 uintVote) public nonReentrant onlyDelegate {
address memberAddress = memberAddressByDelegateKey[msg.sender];
Member storage member = members[memberAddress];
require(proposalIndex < proposalQueue.length, "proposal does not exist");
Proposal storage proposal = proposals[proposalQueue[proposalIndex]];
require(uintVote < 3, "must be less than 3");
Vote vote = Vote(uintVote);
require(getCurrentPeriod() >= proposal.startingPeriod, "voting period has not started");
require(!hasVotingPeriodExpired(proposal.startingPeriod), "proposal voting period has expired");
require(proposal.votesByMember[memberAddress] == Vote.Null, "member has already voted");
require(vote == Vote.Yes || vote == Vote.No, "vote must be either Yes or No");
proposal.votesByMember[memberAddress] = vote;
if (vote == Vote.Yes) {
proposal.yesVotes = proposal.yesVotes.add(member.shares);
// set highest index (latest) yes vote - must be processed for member to ragequit
if (proposalIndex > member.highestIndexYesVote) {
member.highestIndexYesVote = proposalIndex;
}
// set maximum of total shares encountered at a yes vote - used to bound dilution for yes voters
if (totalShares.add(totalLoot) > proposal.maxTotalSharesAndLootAtYesVote) {
proposal.maxTotalSharesAndLootAtYesVote = totalShares.add(totalLoot);
}
} else if (vote == Vote.No) {
proposal.noVotes = proposal.noVotes.add(member.shares);
}
// NOTE: subgraph indexes by proposalId not proposalIndex since proposalIndex isn't set untill it's been sponsored but proposal is created on submission
emit SubmitVote(proposalQueue[proposalIndex], proposalIndex, msg.sender, memberAddress, uintVote);
}
function processProposal(uint256 proposalIndex) public nonReentrant {
_validateProposalForProcessing(proposalIndex);
uint256 proposalId = proposalQueue[proposalIndex];
Proposal storage proposal = proposals[proposalId];
require(!proposal.flags[4] && !proposal.flags[5], "must be a standard proposal");
proposal.flags[1] = true; // processed
bool didPass = _didPass(proposalIndex);
// Make the proposal fail if the new total number of shares and loot exceeds the limit
if (totalShares.add(totalLoot).add(proposal.sharesRequested).add(proposal.lootRequested) > MAX_NUMBER_OF_SHARES_AND_LOOT) {
didPass = false;
}
// Make the proposal fail if it is requesting more tokens as payment than the available guild bank balance
if (proposal.paymentRequested > userTokenBalances[GUILD][proposal.paymentToken]) {
didPass = false;
}
// Make the proposal fail if it would result in too many tokens with non-zero balance in guild bank
if (proposal.tributeOffered > 0 && userTokenBalances[GUILD][proposal.tributeToken] == 0 && totalGuildBankTokens >= MAX_TOKEN_GUILDBANK_COUNT) {
didPass = false;
}
// PROPOSAL PASSED
if (didPass) {
proposal.flags[2] = true; // didPass
// if the applicant is already a member, add to their existing shares & loot
if (members[proposal.applicant].exists) {
members[proposal.applicant].shares = members[proposal.applicant].shares.add(proposal.sharesRequested);
members[proposal.applicant].loot = members[proposal.applicant].loot.add(proposal.lootRequested);
// the applicant is a new member, create a new record for them
} else {
// if the applicant address is already taken by a member's delegateKey, reset it to their member address
if (members[memberAddressByDelegateKey[proposal.applicant]].exists) {
address memberToOverride = memberAddressByDelegateKey[proposal.applicant];
memberAddressByDelegateKey[memberToOverride] = memberToOverride;
members[memberToOverride].delegateKey = memberToOverride;
}
// use applicant address as delegateKey by default
members[proposal.applicant] = Member(proposal.applicant, proposal.sharesRequested, proposal.lootRequested, true, 0, 0);
memberAddressByDelegateKey[proposal.applicant] = proposal.applicant;
}
// mint new shares & loot
totalShares = totalShares.add(proposal.sharesRequested);
totalLoot = totalLoot.add(proposal.lootRequested);
// if the proposal tribute is the first tokens of its kind to make it into the guild bank, increment total guild bank tokens
if (userTokenBalances[GUILD][proposal.tributeToken] == 0 && proposal.tributeOffered > 0) {
totalGuildBankTokens += 1;
}
unsafeInternalTransfer(ESCROW, GUILD, proposal.tributeToken, proposal.tributeOffered);
unsafeInternalTransfer(GUILD, proposal.applicant, proposal.paymentToken, proposal.paymentRequested);
// if the proposal spends 100% of guild bank balance for a token, decrement total guild bank tokens
if (userTokenBalances[GUILD][proposal.paymentToken] == 0 && proposal.paymentRequested > 0) {
totalGuildBankTokens -= 1;
}
// PROPOSAL FAILED
} else {
// return all tokens to the proposer (not the applicant, because funds come from proposer)
unsafeInternalTransfer(ESCROW, proposal.proposer, proposal.tributeToken, proposal.tributeOffered);
}
_returnDeposit(proposal.sponsor);
emit ProcessProposal(proposalIndex, proposalId, didPass);
}
function processWhitelistProposal(uint256 proposalIndex) public nonReentrant {
_validateProposalForProcessing(proposalIndex);
uint256 proposalId = proposalQueue[proposalIndex];
Proposal storage proposal = proposals[proposalId];
require(proposal.flags[4], "must be a whitelist proposal");
proposal.flags[1] = true; // processed
bool didPass = _didPass(proposalIndex);
if (approvedTokens.length >= MAX_TOKEN_WHITELIST_COUNT) {
didPass = false;
}
if (didPass) {
proposal.flags[2] = true; // didPass
tokenWhitelist[address(proposal.tributeToken)] = true;
approvedTokens.push(proposal.tributeToken);
}
proposedToWhitelist[address(proposal.tributeToken)] = false;
_returnDeposit(proposal.sponsor);
emit ProcessWhitelistProposal(proposalIndex, proposalId, didPass);
}
function processGuildKickProposal(uint256 proposalIndex) public nonReentrant {
_validateProposalForProcessing(proposalIndex);
uint256 proposalId = proposalQueue[proposalIndex];
Proposal storage proposal = proposals[proposalId];
require(proposal.flags[5], "must be a guild kick proposal");
proposal.flags[1] = true; // processed
bool didPass = _didPass(proposalIndex);
if (didPass) {
proposal.flags[2] = true; // didPass
Member storage member = members[proposal.applicant];
member.jailed = proposalIndex;
// transfer shares to loot
member.loot = member.loot.add(member.shares);
totalShares = totalShares.sub(member.shares);
totalLoot = totalLoot.add(member.shares);
member.shares = 0; // revoke all shares
}
proposedToKick[proposal.applicant] = false;
_returnDeposit(proposal.sponsor);
emit ProcessGuildKickProposal(proposalIndex, proposalId, didPass);
}
function _didPass(uint256 proposalIndex) internal returns (bool didPass) {
Proposal memory proposal = proposals[proposalQueue[proposalIndex]];
didPass = proposal.yesVotes > proposal.noVotes;
// Make the proposal fail if the dilutionBound is exceeded
if ((totalShares.add(totalLoot)).mul(dilutionBound) < proposal.maxTotalSharesAndLootAtYesVote) {
didPass = false;
}
// Make the proposal fail if the applicant is jailed
// - for standard proposals, we don't want the applicant to get any shares/loot/payment
// - for guild kick proposals, we should never be able to propose to kick a jailed member (or have two kick proposals active), so it doesn't matter
if (members[proposal.applicant].jailed != 0) {
didPass = false;
}
return didPass;
}
function _validateProposalForProcessing(uint256 proposalIndex) internal view {
require(proposalIndex < proposalQueue.length, "proposal does not exist");
Proposal memory proposal = proposals[proposalQueue[proposalIndex]];
require(getCurrentPeriod() >= proposal.startingPeriod.add(votingPeriodLength).add(gracePeriodLength), "proposal is not ready to be processed");
require(proposal.flags[1] == false, "proposal has already been processed");
require(proposalIndex == 0 || proposals[proposalQueue[proposalIndex.sub(1)]].flags[1], "previous proposal must be processed");
}
function _returnDeposit(address sponsor) internal {
unsafeInternalTransfer(ESCROW, msg.sender, depositToken, processingReward);
unsafeInternalTransfer(ESCROW, sponsor, depositToken, proposalDeposit.sub(processingReward));
}
function ragequit(uint256 sharesToBurn, uint256 lootToBurn) public nonReentrant onlyMember {
_ragequit(msg.sender, sharesToBurn, lootToBurn);
}
function _ragequit(address memberAddress, uint256 sharesToBurn, uint256 lootToBurn) internal {
uint256 initialTotalSharesAndLoot = totalShares.add(totalLoot);
Member storage member = members[memberAddress];
require(member.shares >= sharesToBurn, "insufficient shares");
require(member.loot >= lootToBurn, "insufficient loot");
require(canRagequit(member.highestIndexYesVote), "cannot ragequit until highest index proposal member voted YES on is processed");
uint256 sharesAndLootToBurn = sharesToBurn.add(lootToBurn);
// burn shares and loot
member.shares = member.shares.sub(sharesToBurn);
member.loot = member.loot.sub(lootToBurn);
totalShares = totalShares.sub(sharesToBurn);
totalLoot = totalLoot.sub(lootToBurn);
for (uint256 i = 0; i < approvedTokens.length; i++) {
uint256 amountToRagequit = fairShare(userTokenBalances[GUILD][approvedTokens[i]], sharesAndLootToBurn, initialTotalSharesAndLoot);
if (amountToRagequit > 0) { // gas optimization to allow a higher maximum token limit
// deliberately not using safemath here to keep overflows from preventing the function execution (which would break ragekicks)
// if a token overflows, it is because the supply was artificially inflated to oblivion, so we probably don't care about it anyways
userTokenBalances[GUILD][approvedTokens[i]] -= amountToRagequit;
userTokenBalances[memberAddress][approvedTokens[i]] += amountToRagequit;
}
}
emit Ragequit(msg.sender, sharesToBurn, lootToBurn);
}
function ragekick(address memberToKick) public nonReentrant {
Member storage member = members[memberToKick];
require(member.jailed != 0, "member must be in jail");
require(member.loot > 0, "member must have some loot"); // note - should be impossible for jailed member to have shares
require(canRagequit(member.highestIndexYesVote), "cannot ragequit until highest index proposal member voted YES on is processed");
_ragequit(memberToKick, 0, member.loot);
}
function withdrawBalance(address token, uint256 amount) public nonReentrant {
_withdrawBalance(token, amount);
}
function withdrawBalances(address[] memory tokens, uint256[] memory amounts, bool max) public nonReentrant {
require(tokens.length == amounts.length, "tokens and amounts arrays must be matching lengths");
for (uint256 i=0; i < tokens.length; i++) {
uint256 withdrawAmount = amounts[i];
if (max) { // withdraw the maximum balance
withdrawAmount = userTokenBalances[msg.sender][tokens[i]];
}
_withdrawBalance(tokens[i], withdrawAmount);
}
}
function _withdrawBalance(address token, uint256 amount) internal {
require(userTokenBalances[msg.sender][token] >= amount, "insufficient balance");
unsafeSubtractFromBalance(msg.sender, token, amount);
require(IERC20(token).transfer(msg.sender, amount), "transfer failed");
emit Withdraw(msg.sender, token, amount);
}
function collectTokens(address token) public onlyDelegate nonReentrant {
uint256 amountToCollect = IERC20(token).balanceOf(address(this)).sub(userTokenBalances[TOTAL][token]);
// only collect if 1) there are tokens to collect 2) token is whitelisted 3) token has non-zero balance
require(amountToCollect > 0, 'no tokens to collect');
require(tokenWhitelist[token], 'token to collect must be whitelisted');
require(userTokenBalances[GUILD][token] > 0 || totalGuildBankTokens < MAX_TOKEN_GUILDBANK_COUNT, 'token to collect must have non-zero guild bank balance');
if (userTokenBalances[GUILD][token] == 0){
totalGuildBankTokens += 1;
}
unsafeAddToBalance(GUILD, token, amountToCollect);
emit TokensCollected(token, amountToCollect);
}
// NOTE: requires that delegate key which sent the original proposal cancels, msg.sender == proposal.proposer
function cancelProposal(uint256 proposalId) public nonReentrant {
Proposal storage proposal = proposals[proposalId];
require(!proposal.flags[0], "proposal has already been sponsored");
require(!proposal.flags[3], "proposal has already been cancelled");
require(msg.sender == proposal.proposer, "solely the proposer can cancel");
proposal.flags[3] = true; // cancelled
unsafeInternalTransfer(ESCROW, proposal.proposer, proposal.tributeToken, proposal.tributeOffered);
emit CancelProposal(proposalId, msg.sender);
}
function updateDelegateKey(address newDelegateKey) public nonReentrant onlyShareholder {
require(newDelegateKey != address(0), "newDelegateKey cannot be 0");
// skip checks if member is setting the delegate key to their member address
if (newDelegateKey != msg.sender) {
require(!members[newDelegateKey].exists, "cannot overwrite existing members");
require(!members[memberAddressByDelegateKey[newDelegateKey]].exists, "cannot overwrite existing delegate keys");
}
Member storage member = members[msg.sender];
memberAddressByDelegateKey[member.delegateKey] = address(0);
memberAddressByDelegateKey[newDelegateKey] = msg.sender;
member.delegateKey = newDelegateKey;
emit UpdateDelegateKey(msg.sender, newDelegateKey);
}
// can only ragequit if the latest proposal you voted YES on has been processed
function canRagequit(uint256 highestIndexYesVote) public view returns (bool) {
require(highestIndexYesVote < proposalQueue.length, "proposal does not exist");
return proposals[proposalQueue[highestIndexYesVote]].flags[1];
}
function hasVotingPeriodExpired(uint256 startingPeriod) public view returns (bool) {
return getCurrentPeriod() >= startingPeriod.add(votingPeriodLength);
}
/***************
GETTER FUNCTIONS
***************/
function max(uint256 x, uint256 y) internal pure returns (uint256) {
return x >= y ? x : y;
}
function getCurrentPeriod() public view returns (uint256) {
return now.sub(summoningTime).div(periodDuration);
}
function getProposalQueueLength() public view returns (uint256) {
return proposalQueue.length;
}
function getProposalFlags(uint256 proposalId) public view returns (bool[6] memory) {
return proposals[proposalId].flags;
}
function getUserTokenBalance(address user, address token) public view returns (uint256) {
return userTokenBalances[user][token];
}
function getMemberProposalVote(address memberAddress, uint256 proposalIndex) public view returns (Vote) {
require(members[memberAddress].exists, "member does not exist");
require(proposalIndex < proposalQueue.length, "proposal does not exist");
return proposals[proposalQueue[proposalIndex]].votesByMember[memberAddress];
}
function getTokenCount() public view returns (uint256) {
return approvedTokens.length;
}
/***************
HELPER FUNCTIONS
***************/
function unsafeAddToBalance(address user, address token, uint256 amount) internal {
userTokenBalances[user][token] += amount;
userTokenBalances[TOTAL][token] += amount;
}
function unsafeSubtractFromBalance(address user, address token, uint256 amount) internal {
userTokenBalances[user][token] -= amount;
userTokenBalances[TOTAL][token] -= amount;
}
function unsafeInternalTransfer(address from, address to, address token, uint256 amount) internal {
unsafeSubtractFromBalance(from, token, amount);
unsafeAddToBalance(to, token, amount);
}
function fairShare(uint256 balance, uint256 shares, uint256 totalShares) internal pure returns (uint256) {
require(totalShares != 0);
if (balance == 0) { return 0; }
uint256 prod = balance * shares;
if (prod / balance == shares) { // no overflow in multiplication above?
return prod / totalShares;
}
return (balance / totalShares) * shares;
}
}
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
contract CloneFactory { // implementation of eip-1167 - see https://eips.ethereum.org/EIPS/eip-1167
function createClone(address target) internal returns (address result) {
bytes20 targetBytes = bytes20(target);
assembly {
let clone := mload(0x40)
mstore(clone, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(clone, 0x14), targetBytes)
mstore(add(clone, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
result := create(0, clone, 0x37)
}
}
}
contract MolochSummoner is CloneFactory {
address public template;
mapping (address => bool) public daos;
uint daoIdx = 0;
Moloch private moloch; // moloch contract
constructor(address _template) public {
template = _template;
}
event SummonComplete(address indexed moloch, address[] summoner, address[] tokens, uint256 summoningTime, uint256 periodDuration, uint256 votingPeriodLength, uint256 gracePeriodLength, uint256 proposalDeposit, uint256 dilutionBound, uint256 processingReward, uint256[] summonerShares);
event Register(uint daoIdx, address moloch, string title, string http, uint version);
function summonMoloch(
address[] memory _summoner,
address[] memory _approvedTokens,
uint256 _periodDuration,
uint256 _votingPeriodLength,
uint256 _gracePeriodLength,
uint256 _proposalDeposit,
uint256 _dilutionBound,
uint256 _processingReward,
uint256[] memory _summonerShares
) public returns (address) {
Moloch moloch = Moloch(createClone(template));
moloch.init(
_summoner,
_approvedTokens,
_periodDuration,
_votingPeriodLength,
_gracePeriodLength,
_proposalDeposit,
_dilutionBound,
_processingReward,
_summonerShares
);
emit SummonComplete(address(moloch), _summoner, _approvedTokens, now, _periodDuration, _votingPeriodLength, _gracePeriodLength, _proposalDeposit, _dilutionBound, _processingReward, _summonerShares);
return address(moloch);
}
function registerDao(
address _daoAdress,
string memory _daoTitle,
string memory _http,
uint _version
) public returns (bool) {
moloch = Moloch(_daoAdress);
(,,,bool exists,,) = moloch.members(msg.sender);
require(exists == true, "must be a member");
require(daos[_daoAdress] == false, "dao metadata already registered");
daos[_daoAdress] = true;
daoIdx = daoIdx + 1;
emit Register(daoIdx, _daoAdress, _daoTitle, _http, _version);
return true;
}
} | [{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"proposals","outputs":[{"name":"applicant","type":"address"},{"name":"proposer","type":"address"},{"name":"sponsor","type":"address"},{"name":"sharesRequested","type":"uint256"},{"name":"lootRequested","type":"uint256"},{"name":"tributeOffered","type":"uint256"},{"name":"tributeToken","type":"address"},{"name":"paymentRequested","type":"uint256"},{"name":"paymentToken","type":"address"},{"name":"startingPeriod","type":"uint256"},{"name":"yesVotes","type":"uint256"},{"name":"noVotes","type":"uint256"},{"name":"details","type":"string"},{"name":"maxTotalSharesAndLootAtYesVote","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"processingReward","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"memberAddress","type":"address"},{"name":"proposalIndex","type":"uint256"}],"name":"getMemberProposalVote","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getCurrentPeriod","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"members","outputs":[{"name":"delegateKey","type":"address"},{"name":"shares","type":"uint256"},{"name":"loot","type":"uint256"},{"name":"exists","type":"bool"},{"name":"highestIndexYesVote","type":"uint256"},{"name":"jailed","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"token","type":"address"},{"name":"amount","type":"uint256"}],"name":"withdrawBalance","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"memberToKick","type":"address"},{"name":"details","type":"string"}],"name":"submitGuildKickProposal","outputs":[{"name":"proposalId","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"sharesToBurn","type":"uint256"},{"name":"lootToBurn","type":"uint256"}],"name":"ragequit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"approvedTokens","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newDelegateKey","type":"address"}],"name":"updateDelegateKey","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"TOTAL","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"proposalIndex","type":"uint256"}],"name":"processWhitelistProposal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalShares","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"proposalQueue","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"proposedToKick","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"memberAddressByDelegateKey","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"tokens","type":"address[]"},{"name":"amounts","type":"uint256[]"},{"name":"max","type":"bool"}],"name":"withdrawBalances","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"userTokenBalances","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"applicant","type":"address"},{"name":"sharesRequested","type":"uint256"},{"name":"lootRequested","type":"uint256"},{"name":"tributeOffered","type":"uint256"},{"name":"tributeToken","type":"address"},{"name":"paymentRequested","type":"uint256"},{"name":"paymentToken","type":"address"},{"name":"details","type":"string"}],"name":"submitProposal","outputs":[{"name":"proposalId","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"token","type":"address"}],"name":"collectTokens","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalLoot","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"gracePeriodLength","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"user","type":"address"},{"name":"token","type":"address"}],"name":"getUserTokenBalance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"tokenWhitelist","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getTokenCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getProposalQueueLength","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"summoningTime","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"votingPeriodLength","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"proposalDeposit","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"startingPeriod","type":"uint256"}],"name":"hasVotingPeriodExpired","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"proposalId","type":"uint256"}],"name":"sponsorProposal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"proposalIndex","type":"uint256"},{"name":"uintVote","type":"uint8"}],"name":"submitVote","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalGuildBankTokens","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"highestIndexYesVote","type":"uint256"}],"name":"canRagequit","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_summoner","type":"address[]"},{"name":"_approvedTokens","type":"address[]"},{"name":"_periodDuration","type":"uint256"},{"name":"_votingPeriodLength","type":"uint256"},{"name":"_gracePeriodLength","type":"uint256"},{"name":"_proposalDeposit","type":"uint256"},{"name":"_dilutionBound","type":"uint256"},{"name":"_processingReward","type":"uint256"},{"name":"_summonerShares","type":"uint256[]"}],"name":"init","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"dilutionBound","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"proposalId","type":"uint256"}],"name":"getProposalFlags","outputs":[{"name":"","type":"bool[6]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"memberList","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"periodDuration","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"depositToken","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"proposalCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"memberToKick","type":"address"}],"name":"ragekick","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"proposalId","type":"uint256"}],"name":"cancelProposal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"proposedToWhitelist","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"proposalIndex","type":"uint256"}],"name":"processGuildKickProposal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"proposalIndex","type":"uint256"}],"name":"processProposal","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"ESCROW","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"GUILD","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"tokenToWhitelist","type":"address"},{"name":"details","type":"string"}],"name":"submitWhitelistProposal","outputs":[{"name":"proposalId","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"summoner","type":"address"},{"indexed":false,"name":"tokens","type":"address[]"},{"indexed":false,"name":"summoningTime","type":"uint256"},{"indexed":false,"name":"periodDuration","type":"uint256"},{"indexed":false,"name":"votingPeriodLength","type":"uint256"},{"indexed":false,"name":"gracePeriodLength","type":"uint256"},{"indexed":false,"name":"proposalDeposit","type":"uint256"},{"indexed":false,"name":"dilutionBound","type":"uint256"},{"indexed":false,"name":"processingReward","type":"uint256"}],"name":"SummonComplete","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"applicant","type":"address"},{"indexed":false,"name":"sharesRequested","type":"uint256"},{"indexed":false,"name":"lootRequested","type":"uint256"},{"indexed":false,"name":"tributeOffered","type":"uint256"},{"indexed":false,"name":"tributeToken","type":"address"},{"indexed":false,"name":"paymentRequested","type":"uint256"},{"indexed":false,"name":"paymentToken","type":"address"},{"indexed":false,"name":"details","type":"string"},{"indexed":false,"name":"flags","type":"bool[6]"},{"indexed":false,"name":"proposalId","type":"uint256"},{"indexed":true,"name":"delegateKey","type":"address"},{"indexed":true,"name":"memberAddress","type":"address"}],"name":"SubmitProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"delegateKey","type":"address"},{"indexed":true,"name":"memberAddress","type":"address"},{"indexed":false,"name":"proposalId","type":"uint256"},{"indexed":false,"name":"proposalIndex","type":"uint256"},{"indexed":false,"name":"startingPeriod","type":"uint256"}],"name":"SponsorProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"proposalId","type":"uint256"},{"indexed":true,"name":"proposalIndex","type":"uint256"},{"indexed":true,"name":"delegateKey","type":"address"},{"indexed":true,"name":"memberAddress","type":"address"},{"indexed":false,"name":"uintVote","type":"uint8"}],"name":"SubmitVote","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"proposalIndex","type":"uint256"},{"indexed":true,"name":"proposalId","type":"uint256"},{"indexed":false,"name":"didPass","type":"bool"}],"name":"ProcessProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"proposalIndex","type":"uint256"},{"indexed":true,"name":"proposalId","type":"uint256"},{"indexed":false,"name":"didPass","type":"bool"}],"name":"ProcessWhitelistProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"proposalIndex","type":"uint256"},{"indexed":true,"name":"proposalId","type":"uint256"},{"indexed":false,"name":"didPass","type":"bool"}],"name":"ProcessGuildKickProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"memberAddress","type":"address"},{"indexed":false,"name":"sharesToBurn","type":"uint256"},{"indexed":false,"name":"lootToBurn","type":"uint256"}],"name":"Ragequit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"token","type":"address"},{"indexed":false,"name":"amountToCollect","type":"uint256"}],"name":"TokensCollected","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"proposalId","type":"uint256"},{"indexed":false,"name":"applicantAddress","type":"address"}],"name":"CancelProposal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"memberAddress","type":"address"},{"indexed":false,"name":"newDelegateKey","type":"address"}],"name":"UpdateDelegateKey","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"memberAddress","type":"address"},{"indexed":false,"name":"token","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"}] | v0.5.3+commit.10d17f24 | true | 200 | Default | None | false | bzzr://ac2fa7d810108626dc4b6c93a3a97299b72c8d3b55fc3c0dc35fe871f928839c | |||
Forwarder | 0x7e19607a4c5b9bee0d871004e869632b12643b3f | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
BlindBox | 0xbc72cee722c50859cbee8007985112985e9cd45e | Solidity | /**
*Submitted for verification at Etherscan.io on 2022-12-13
*/
//test
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)
pragma solidity ^0.8.0;
/**
* @title Counters
* @author Matt Condon (@shrugs)
* @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
* of elements in a mapping, issuing ERC721 ids, or counting request ids.
*
* Include with `using Counters for Counters.Counter;`
*/
library Counters {
struct Counter {
// This variable should never be directly accessed by users of the library: interactions must be restricted to
// the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
// this feature: see https://github.com/ethereum/solidity/issues/4637
uint256 _value; // default: 0
}
function current(Counter storage counter) internal view returns (uint256) {
return counter._value;
}
function increment(Counter storage counter) internal {
unchecked {
counter._value += 1;
}
}
function decrement(Counter storage counter) internal {
uint256 value = counter._value;
require(value > 0, "Counter: decrement overflow");
unchecked {
counter._value = value - 1;
}
}
function reset(Counter storage counter) internal {
counter._value = 0;
}
}
// File @openzeppelin/contracts/token/ERC20/IERC20.sol@v4.8.0
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// File @openzeppelin/contracts/utils/Context.sol@v4.8.0
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol@v4.8.0
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File @openzeppelin/contracts/token/ERC20/ERC20.sol@v4.8.0
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
// File @openzeppelin/contracts/access/Ownable.sol@v4.8.0
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File @openzeppelin/contracts/utils/math/SafeMath.sol@v4.8.0
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
// File contracts/test.sol
pragma solidity 0.8.0;
interface NFT {
function safeMint(address to) external returns(uint256);
}
contract BlindBox is Ownable{
using SafeMath for uint256;
address payable public Collection;
uint256 public price;//价格
address public NFTToken;//NFT合约地址
uint256 public starttime;//开启时间
uint256 public endtime;//结束时间
uint256 public totalfrequency;
mapping(address => uint256) public frequency;
mapping(uint256 => uint256) public totalfrequencys;
//是否是合约调用
function isContract(address addr) private view returns (bool) {
uint size;
assembly { size := extcodesize(addr) }
return size > 0;
}
// 校验 - 禁止合约调用
modifier validateContract(address user) {
require(!isContract(user), "Illegal calls?");
_;
}
// 重入锁
bool private locked;
modifier ReentrantLock{
require(!locked, "locked!");
locked = true;
_;
locked = false;
}
function settime(uint256 start,uint256 end)public onlyOwner{
starttime = start;
endtime = end;
}
function setCollection(address payable addr) public onlyOwner returns(bool){
Collection = addr;
return true;
}
function setNFTToken(address addr) public onlyOwner returns(bool){
NFTToken = addr;
return true;
}
function setprice(uint256 amonut) public onlyOwner returns(bool){
price = amonut;
return true;
}
function settotalfrequency(uint256 nub,uint256 amonut) public onlyOwner returns(bool){
totalfrequency = amonut;
totalfrequencys[nub] = amonut;
return true;
}
function mint(uint256 amount) public payable validateContract(msg.sender) ReentrantLock {
uint256 ontime = block.timestamp;
require(starttime !=0 && starttime <= ontime,"no strat");
require(ontime <= endtime,"Closed");
require(totalfrequency >= amount,"Insufficient card drawing times in this round");
uint256 i;
if(frequency[msg.sender] == 0){
uint256 Value = price.mul(amount);
require(msg.value == Value,"amount is not true");
Collection.transfer(Value);
for(i=0;i<amount;++i){
NFT(NFTToken).safeMint(msg.sender);
}
}if(frequency[msg.sender] !=0){
uint256 nub = frequency[msg.sender];
require(amount <= nub,"You don't smoke NFT enough");
frequency[msg.sender] = frequency[msg.sender].sub(amount);
for(i=0;i<amount;++i){
NFT(NFTToken).safeMint(msg.sender);
}
}
totalfrequency = totalfrequency.sub(amount);
}
function addmint(address[] memory addr,uint256 amount)public onlyOwner returns(bool){
uint256 Lenght = addr.length;
uint i;
for(i=0;i<Lenght;i++){
frequency[addr[i]] = amount;
}
return true;
}
} | [{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"Collection","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"NFTToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"addr","type":"address[]"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"addmint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"endtime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"frequency","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"addr","type":"address"}],"name":"setCollection","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"setNFTToken","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amonut","type":"uint256"}],"name":"setprice","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"start","type":"uint256"},{"internalType":"uint256","name":"end","type":"uint256"}],"name":"settime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"nub","type":"uint256"},{"internalType":"uint256","name":"amonut","type":"uint256"}],"name":"settotalfrequency","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"starttime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalfrequency","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"totalfrequencys","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.0+commit.c7dfd78e | false | 200 | Default | MIT | false | ipfs://6fa68b9a7dc405c3e3035a5bd0c6a30cd3fe9358ed4d1492a21529f7110eb907 | |||
SAFeReUM | 0x87722f744a0f496dbb13dc910a8352e824ece823 | Solidity | // SPDX-License-Identifier: UNLICENSED
/*
https://t.me/safereumerc
https://twitter.com/Safereumerc20
*/
pragma solidity 0.8.20;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
contract SAFeReUM is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private bots;
mapping(address => uint256) private _holderLastTransferTimestamp;
bool public transferDelayEnabled = true;
address payable private _taxWallet;
uint256 private _initialBuyTax=20;
uint256 private _initialSellTax=22;
uint256 private _finalBuyTax=1;
uint256 private _finalSellTax=1;
uint256 private _reduceBuyTaxAt=20;
uint256 private _reduceSellTaxAt=20;
uint256 private _preventSwapBefore=20;
uint256 private _buyCount=0;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 1000000000 * 10 **_decimals;
string private constant _name = unicode"SAF三R三UM";
string private constant _symbol = unicode"SAF三R三UM";
uint256 public _maxTxAmount = 20000000 * 10 **_decimals;
uint256 public _maxWalletSize = 20000000 * 10 **_decimals;
uint256 public _taxSwapThreshold= 10000000 * 10 **_decimals;
uint256 public _maxTaxSwap= 15000000 * 10 **_decimals;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_taxWallet = payable(_msgSender());
_balances[_msgSender()] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
uint256 taxAmount=0;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to]);
taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
if (transferDelayEnabled) {
if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {
require(
_holderLastTransferTimestamp[tx.origin] <
block.number,
"_transfer:: Transfer Delay enabled. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
_buyCount++;
}
if(to == uniswapV2Pair && from!= address(this) ){
taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) {
swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
if(taxAmount>0){
_balances[address(this)]=_balances[address(this)].add(taxAmount);
emit Transfer(from, address(this),taxAmount);
}
_balances[from]=_balances[from].sub(amount);
_balances[to]=_balances[to].add(amount.sub(taxAmount));
emit Transfer(from, to, amount.sub(taxAmount));
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimits() external onlyOwner{
_maxTxAmount = _tTotal;
_maxWalletSize=_tTotal;
transferDelayEnabled=false;
emit MaxTxAmountUpdated(_tTotal);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function addBots(address[] memory bots_) public onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBots(address[] memory notbot) public onlyOwner {
for (uint i = 0; i < notbot.length; i++) {
bots[notbot[i]] = false;
}
}
function isBot(address a) public view returns (bool){
return bots[a];
}
function openTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
swapEnabled = true;
tradingOpen = true;
}
function reduceFee(uint256 _newFee) external{
require(_msgSender()==_taxWallet);
require(_newFee<=_finalBuyTax && _newFee<=_finalSellTax);
_finalBuyTax=_newFee;
_finalSellTax=_newFee;
}
receive() external payable {}
function manualSwap() external {
require(_msgSender()==_taxWallet);
uint256 tokenBalance=balanceOf(address(this));
if(tokenBalance>0){
swapTokensForEth(tokenBalance);
}
uint256 ethBalance=address(this).balance;
if(ethBalance>0){
sendETHToFee(ethBalance);
}
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_maxTxAmount","type":"uint256"}],"name":"MaxTxAmountUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"_maxTaxSwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxTxAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_maxWalletSize","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"_taxSwapThreshold","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"bots_","type":"address[]"}],"name":"addBots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address[]","name":"notbot","type":"address[]"}],"name":"delBots","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"a","type":"address"}],"name":"isBot","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"manualSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"openTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newFee","type":"uint256"}],"name":"reduceFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"removeLimits","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"transferDelayEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.20+commit.a1b79de6 | false | 200 | Default | None | false | ipfs://81a185c47a5522764a85a07582b156d787d0b223c198d154db315adc5f730013 | |||
GnosisSafeProxy | 0x6a2137fbfc0f9adb6261bf174e761ce233f631a4 | Solidity | // SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
// singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal singleton;
/// @dev Constructor function sets address of singleton contract.
/// @param _singleton Singleton address.
constructor(address _singleton) {
require(_singleton != address(0), "Invalid singleton address provided");
singleton = _singleton;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback() external payable {
// solhint-disable-next-line no-inline-assembly
assembly {
let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _singleton)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <stefan@gnosis.pm>
contract GnosisSafeProxyFactory {
event ProxyCreation(GnosisSafeProxy proxy, address singleton);
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param singleton Address of singleton contract.
/// @param data Payload for message call sent to new proxy contract.
function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
proxy = new GnosisSafeProxy(singleton);
if (data.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, singleton);
}
/// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
function proxyRuntimeCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).runtimeCode;
}
/// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
function proxyCreationCode() public pure returns (bytes memory) {
return type(GnosisSafeProxy).creationCode;
}
/// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
/// This method is only meant as an utility to be called from other methods
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function deployProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) internal returns (GnosisSafeProxy proxy) {
// If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
// solhint-disable-next-line no-inline-assembly
assembly {
proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
}
require(address(proxy) != address(0), "Create2 call failed");
}
/// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function createProxyWithNonce(
address _singleton,
bytes memory initializer,
uint256 saltNonce
) public returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
if (initializer.length > 0)
// solhint-disable-next-line no-inline-assembly
assembly {
if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
revert(0, 0)
}
}
emit ProxyCreation(proxy, _singleton);
}
/// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
/// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
function createProxyWithCallback(
address _singleton,
bytes memory initializer,
uint256 saltNonce,
IProxyCreationCallback callback
) public returns (GnosisSafeProxy proxy) {
uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
}
/// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
/// This method is only meant for address calculation purpose when you use an initializer that would revert,
/// therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
/// @param _singleton Address of singleton contract.
/// @param initializer Payload for message call sent to new proxy contract.
/// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
function calculateCreateProxyWithNonceAddress(
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external returns (GnosisSafeProxy proxy) {
proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
revert(string(abi.encodePacked(proxy)));
}
}
interface IProxyCreationCallback {
function proxyCreated(
GnosisSafeProxy proxy,
address _singleton,
bytes calldata initializer,
uint256 saltNonce
) external;
} | [{"inputs":[{"internalType":"address","name":"_singleton","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | false | 200 | 000000000000000000000000d9Db270c1B5E3Bd161E8c8503c55cEABeE709552 | Default | GNU LGPLv3 | true | 0xd9db270c1b5e3bd161e8c8503c55ceabee709552 | ipfs://d1429297349653a4918076d650332de1a1068c5f3e07c5c82360c277770b9552 | |
BounceERC721WithSign | 0xd6afa63ad4bdc9a7d7edb825cba612d4f3fccf42 | Solidity | // Sources flattened with hardhat v2.1.2 https://hardhat.org
// File @openzeppelin/contracts/utils/Context.sol@v3.4.1
// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// File @openzeppelin/contracts/access/Ownable.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// File @openzeppelin/contracts/introspection/IERC165.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File @openzeppelin/contracts/token/ERC721/IERC721.sol@v3.4.1
pragma solidity >=0.6.2 <0.8.0;
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
}
// File @openzeppelin/contracts/token/ERC721/IERC721Metadata.sol@v3.4.1
pragma solidity >=0.6.2 <0.8.0;
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File @openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol@v3.4.1
pragma solidity >=0.6.2 <0.8.0;
/**
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Enumerable is IERC721 {
/**
* @dev Returns the total amount of tokens stored by the contract.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);
/**
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
* Use along with {totalSupply} to enumerate all tokens.
*/
function tokenByIndex(uint256 index) external view returns (uint256);
}
// File @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4);
}
// File @openzeppelin/contracts/introspection/ERC165.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts may inherit from this and call {_registerInterface} to declare
* their support of an interface.
*/
abstract contract ERC165 is IERC165 {
/*
* bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
*/
bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;
/**
* @dev Mapping of interface ids to whether or not it's supported.
*/
mapping(bytes4 => bool) private _supportedInterfaces;
constructor () internal {
// Derived contracts need only register support for their own interfaces,
// we register support for ERC165 itself here
_registerInterface(_INTERFACE_ID_ERC165);
}
/**
* @dev See {IERC165-supportsInterface}.
*
* Time complexity O(1), guaranteed to always use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return _supportedInterfaces[interfaceId];
}
/**
* @dev Registers the contract as an implementer of the interface defined by
* `interfaceId`. Support of the actual ERC165 interface is automatic and
* registering its interface id is not required.
*
* See {IERC165-supportsInterface}.
*
* Requirements:
*
* - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
*/
function _registerInterface(bytes4 interfaceId) internal virtual {
require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
_supportedInterfaces[interfaceId] = true;
}
}
// File @openzeppelin/contracts/math/SafeMath.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryDiv}.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
// File @openzeppelin/contracts/utils/Address.sol@v3.4.1
pragma solidity >=0.6.2 <0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File @openzeppelin/contracts/utils/EnumerableSet.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position of the value in the `values` array, plus 1 because index 0
// means a value is not in the set.
mapping (bytes32 => uint256) _indexes;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._indexes[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We read and store the value's index to prevent multiple reads from the same storage slot
uint256 valueIndex = set._indexes[value];
if (valueIndex != 0) { // Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
// When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
// so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.
bytes32 lastvalue = set._values[lastIndex];
// Move the last value to the index where the value to delete is
set._values[toDeleteIndex] = lastvalue;
// Update the index for the moved value
set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the index for the deleted slot
delete set._indexes[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._indexes[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
require(set._values.length > index, "EnumerableSet: index out of bounds");
return set._values[index];
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint160(uint256(_at(set._inner, index))));
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
}
// File @openzeppelin/contracts/utils/EnumerableMap.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Library for managing an enumerable variant of Solidity's
* https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`]
* type.
*
* Maps have the following properties:
*
* - Entries are added, removed, and checked for existence in constant time
* (O(1)).
* - Entries are enumerated in O(n). No guarantees are made on the ordering.
*
* ```
* contract Example {
* // Add the library methods
* using EnumerableMap for EnumerableMap.UintToAddressMap;
*
* // Declare a set state variable
* EnumerableMap.UintToAddressMap private myMap;
* }
* ```
*
* As of v3.0.0, only maps of type `uint256 -> address` (`UintToAddressMap`) are
* supported.
*/
library EnumerableMap {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Map type with
// bytes32 keys and values.
// The Map implementation uses private functions, and user-facing
// implementations (such as Uint256ToAddressMap) are just wrappers around
// the underlying Map.
// This means that we can only create new EnumerableMaps for types that fit
// in bytes32.
struct MapEntry {
bytes32 _key;
bytes32 _value;
}
struct Map {
// Storage of map keys and values
MapEntry[] _entries;
// Position of the entry defined by a key in the `entries` array, plus 1
// because index 0 means a key is not in the map.
mapping (bytes32 => uint256) _indexes;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function _set(Map storage map, bytes32 key, bytes32 value) private returns (bool) {
// We read and store the key's index to prevent multiple reads from the same storage slot
uint256 keyIndex = map._indexes[key];
if (keyIndex == 0) { // Equivalent to !contains(map, key)
map._entries.push(MapEntry({ _key: key, _value: value }));
// The entry is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
map._indexes[key] = map._entries.length;
return true;
} else {
map._entries[keyIndex - 1]._value = value;
return false;
}
}
/**
* @dev Removes a key-value pair from a map. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function _remove(Map storage map, bytes32 key) private returns (bool) {
// We read and store the key's index to prevent multiple reads from the same storage slot
uint256 keyIndex = map._indexes[key];
if (keyIndex != 0) { // Equivalent to contains(map, key)
// To delete a key-value pair from the _entries array in O(1), we swap the entry to delete with the last one
// in the array, and then remove the last entry (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = keyIndex - 1;
uint256 lastIndex = map._entries.length - 1;
// When the entry to delete is the last one, the swap operation is unnecessary. However, since this occurs
// so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.
MapEntry storage lastEntry = map._entries[lastIndex];
// Move the last entry to the index where the entry to delete is
map._entries[toDeleteIndex] = lastEntry;
// Update the index for the moved entry
map._indexes[lastEntry._key] = toDeleteIndex + 1; // All indexes are 1-based
// Delete the slot where the moved entry was stored
map._entries.pop();
// Delete the index for the deleted slot
delete map._indexes[key];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function _contains(Map storage map, bytes32 key) private view returns (bool) {
return map._indexes[key] != 0;
}
/**
* @dev Returns the number of key-value pairs in the map. O(1).
*/
function _length(Map storage map) private view returns (uint256) {
return map._entries.length;
}
/**
* @dev Returns the key-value pair stored at position `index` in the map. O(1).
*
* Note that there are no guarantees on the ordering of entries inside the
* array, and it may change when more entries are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Map storage map, uint256 index) private view returns (bytes32, bytes32) {
require(map._entries.length > index, "EnumerableMap: index out of bounds");
MapEntry storage entry = map._entries[index];
return (entry._key, entry._value);
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*/
function _tryGet(Map storage map, bytes32 key) private view returns (bool, bytes32) {
uint256 keyIndex = map._indexes[key];
if (keyIndex == 0) return (false, 0); // Equivalent to contains(map, key)
return (true, map._entries[keyIndex - 1]._value); // All indexes are 1-based
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function _get(Map storage map, bytes32 key) private view returns (bytes32) {
uint256 keyIndex = map._indexes[key];
require(keyIndex != 0, "EnumerableMap: nonexistent key"); // Equivalent to contains(map, key)
return map._entries[keyIndex - 1]._value; // All indexes are 1-based
}
/**
* @dev Same as {_get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {_tryGet}.
*/
function _get(Map storage map, bytes32 key, string memory errorMessage) private view returns (bytes32) {
uint256 keyIndex = map._indexes[key];
require(keyIndex != 0, errorMessage); // Equivalent to contains(map, key)
return map._entries[keyIndex - 1]._value; // All indexes are 1-based
}
// UintToAddressMap
struct UintToAddressMap {
Map _inner;
}
/**
* @dev Adds a key-value pair to a map, or updates the value for an existing
* key. O(1).
*
* Returns true if the key was added to the map, that is if it was not
* already present.
*/
function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) {
return _set(map._inner, bytes32(key), bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the key was removed from the map, that is if it was present.
*/
function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) {
return _remove(map._inner, bytes32(key));
}
/**
* @dev Returns true if the key is in the map. O(1).
*/
function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) {
return _contains(map._inner, bytes32(key));
}
/**
* @dev Returns the number of elements in the map. O(1).
*/
function length(UintToAddressMap storage map) internal view returns (uint256) {
return _length(map._inner);
}
/**
* @dev Returns the element stored at position `index` in the set. O(1).
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) {
(bytes32 key, bytes32 value) = _at(map._inner, index);
return (uint256(key), address(uint160(uint256(value))));
}
/**
* @dev Tries to returns the value associated with `key`. O(1).
* Does not revert if `key` is not in the map.
*
* _Available since v3.4._
*/
function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) {
(bool success, bytes32 value) = _tryGet(map._inner, bytes32(key));
return (success, address(uint160(uint256(value))));
}
/**
* @dev Returns the value associated with `key`. O(1).
*
* Requirements:
*
* - `key` must be in the map.
*/
function get(UintToAddressMap storage map, uint256 key) internal view returns (address) {
return address(uint160(uint256(_get(map._inner, bytes32(key)))));
}
/**
* @dev Same as {get}, with a custom error message when `key` is not in the map.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryGet}.
*/
function get(UintToAddressMap storage map, uint256 key, string memory errorMessage) internal view returns (address) {
return address(uint160(uint256(_get(map._inner, bytes32(key), errorMessage))));
}
}
// File @openzeppelin/contracts/utils/Strings.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev String operations.
*/
library Strings {
/**
* @dev Converts a `uint256` to its ASCII `string` representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
uint256 index = digits - 1;
temp = value;
while (temp != 0) {
buffer[index--] = bytes1(uint8(48 + temp % 10));
temp /= 10;
}
return string(buffer);
}
}
// File @openzeppelin/contracts/token/ERC721/ERC721.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @title ERC721 Non-Fungible Token Standard basic implementation
* @dev see https://eips.ethereum.org/EIPS/eip-721
*/
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable {
using SafeMath for uint256;
using Address for address;
using EnumerableSet for EnumerableSet.UintSet;
using EnumerableMap for EnumerableMap.UintToAddressMap;
using Strings for uint256;
// Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
// which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;
// Mapping from holder address to their (enumerable) set of owned tokens
mapping (address => EnumerableSet.UintSet) private _holderTokens;
// Enumerable mapping from token ids to their owners
EnumerableMap.UintToAddressMap private _tokenOwners;
// Mapping from token ID to approved address
mapping (uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping (address => mapping (address => bool)) private _operatorApprovals;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Optional mapping for token URIs
mapping (uint256 => string) private _tokenURIs;
// Base URI
string private _baseURI;
/*
* bytes4(keccak256('balanceOf(address)')) == 0x70a08231
* bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e
* bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3
* bytes4(keccak256('getApproved(uint256)')) == 0x081812fc
* bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465
* bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c5
* bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd
* bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e
* bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde
*
* => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^
* 0xa22cb465 ^ 0xe985e9c5 ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd
*/
bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;
/*
* bytes4(keccak256('name()')) == 0x06fdde03
* bytes4(keccak256('symbol()')) == 0x95d89b41
* bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd
*
* => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f
*/
bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;
/*
* bytes4(keccak256('totalSupply()')) == 0x18160ddd
* bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59
* bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7
*
* => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63
*/
bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
constructor (string memory name_, string memory symbol_) public {
_name = name_;
_symbol = symbol_;
// register the supported interfaces to conform to ERC721 via ERC165
_registerInterface(_INTERFACE_ID_ERC721);
_registerInterface(_INTERFACE_ID_ERC721_METADATA);
_registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _holderTokens[owner].length();
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
return _tokenOwners.get(tokenId, "ERC721: owner query for nonexistent token");
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory _tokenURI = _tokenURIs[tokenId];
string memory base = baseURI();
// If there is no base URI, return the token URI.
if (bytes(base).length == 0) {
return _tokenURI;
}
// If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
if (bytes(_tokenURI).length > 0) {
return string(abi.encodePacked(base, _tokenURI));
}
// If there is a baseURI but no tokenURI, concatenate the tokenID to the baseURI.
return string(abi.encodePacked(base, tokenId.toString()));
}
/**
* @dev Returns the base URI set via {_setBaseURI}. This will be
* automatically added as a prefix in {tokenURI} to each token's URI, or
* to the token ID if no specific URI is set for that token ID.
*/
function baseURI() public view virtual returns (string memory) {
return _baseURI;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
*/
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
return _holderTokens[owner].at(index);
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
// _tokenOwners are indexed by tokenIds, so .length() returns the number of tokenIds
return _tokenOwners.length();
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
(uint256 tokenId, ) = _tokenOwners.at(index);
return tokenId;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(_msgSender() == owner || ERC721.isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
require(operator != _msgSender(), "ERC721: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(address from, address to, uint256 tokenId, bytes memory _data) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _tokenOwners.contains(tokenId);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || ERC721.isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
d*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(address to, uint256 tokenId, bytes memory _data) internal virtual {
_mint(to, tokenId);
require(_checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_holderTokens[to].add(tokenId);
_tokenOwners.set(tokenId, to);
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721.ownerOf(tokenId); // internal owner
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
// Clear metadata (if any)
if (bytes(_tokenURIs[tokenId]).length != 0) {
delete _tokenURIs[tokenId];
}
_holderTokens[owner].remove(tokenId);
_tokenOwners.remove(tokenId);
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address from, address to, uint256 tokenId) internal virtual {
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own"); // internal owner
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_holderTokens[from].remove(tokenId);
_holderTokens[to].add(tokenId);
_tokenOwners.set(tokenId, to);
emit Transfer(from, to, tokenId);
}
/**
* @dev Sets `_tokenURI` as the tokenURI of `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
_tokenURIs[tokenId] = _tokenURI;
}
/**
* @dev Internal function to set the base URI for all token IDs. It is
* automatically added as a prefix to the value returned in {tokenURI},
* or to the token ID if {tokenURI} is empty.
*/
function _setBaseURI(string memory baseURI_) internal virtual {
_baseURI = baseURI_;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)
private returns (bool)
{
if (!to.isContract()) {
return true;
}
bytes memory returndata = to.functionCall(abi.encodeWithSelector(
IERC721Receiver(to).onERC721Received.selector,
_msgSender(),
from,
tokenId,
_data
), "ERC721: transfer to non ERC721Receiver implementer");
bytes4 retval = abi.decode(returndata, (bytes4));
return (retval == _ERC721_RECEIVED);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721.ownerOf(tokenId), to, tokenId); // internal owner
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal virtual { }
}
// File contracts/BounceERC721.sol
pragma solidity ^0.6.0;
contract BounceERC721 is ERC721, Ownable {
constructor (string memory name_, string memory symbol_) public ERC721(name_, symbol_) {}
// tokenid => creator address
mapping(uint256 => address) public creator;
function setBaseURI(string memory baseURI_) external onlyOwner {
super._setBaseURI(baseURI_);
}
function mint(address to, uint256 tokenId) external onlyOwner {
super._safeMint(to, tokenId);
creator[tokenId] = to;
}
function burn(uint256 tokenId) external onlyOwner {
super._burn(tokenId);
creator[tokenId] = address(0);
}
function batchMint(address to, uint256 fromTokenId, uint256 toTokenId) external onlyOwner {
for (uint256 tokenId = fromTokenId; tokenId <= toTokenId; tokenId++) {
super._safeMint(to, tokenId);
creator[tokenId] = to;
}
}
}
// File @openzeppelin/contracts/cryptography/ECDSA.sol@v3.4.1
pragma solidity >=0.6.0 <0.8.0;
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
// Check the signature length
if (signature.length != 65) {
revert("ECDSA: invalid signature length");
}
// Divide the signature in r, s and v variables
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
// solhint-disable-next-line no-inline-assembly
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return recover(hash, v, r, s);
}
/**
* @dev Overload of {ECDSA-recover-bytes32-bytes-} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature 's' value");
require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
require(signer != address(0), "ECDSA: invalid signature");
return signer;
}
/**
* @dev Returns an Ethereum Signed Message, created from a `hash`. This
* replicates the behavior of the
* https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign[`eth_sign`]
* JSON-RPC method.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
// 32 is the length in bytes of hash,
// enforced by the type signature above
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
}
// File contracts/BounceERC721WithSign.sol
pragma solidity ^0.6.0;
contract BounceERC721WithSign is BounceERC721 {
constructor (string memory name_, string memory symbol_) public BounceERC721(name_, symbol_) {}
// address to sign mint message
address public signer;
function setSigner(address _signer) external onlyOwner {
signer = _signer;
}
function mintUser(uint256 id, bytes calldata sign, uint expireTime) external {
require(block.timestamp <= expireTime, "SIGN EXPIRE");
bytes32 hash = ECDSA.toEthSignedMessageHash(keccak256(abi.encode(msg.sender, id, expireTime)));
require(ECDSA.recover(hash, sign) == signer, "INVALID SIGNER");
super._mint(msg.sender, id);
creator[id] = msg.sender;
}
} | 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| v0.6.12+commit.27d51765 | true | 200 | 000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000009426f756e63654e4654000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034e46540000000000000000000000000000000000000000000000000000000000 | istanbul | MIT | false | ipfs://04bca853df89adfdd22565cd3446532f1dc07f7a90bcfabc15c37a7b02b71aa5 | ||
NFTCollection | 0x5a1ecd66c6a3ff34986911af06e45c136f2bec19 | Solidity | // File: contracts/NFTCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./interfaces/internal/INFTCollectionInitializer.sol";
import "./interfaces/standards/royalties/IGetRoyalties.sol";
import "./interfaces/standards/royalties/ITokenCreator.sol";
import "./interfaces/standards/royalties/IGetFees.sol";
import "./interfaces/standards/royalties/IRoyaltyInfo.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./libraries/AddressLibrary.sol";
import "./mixins/collections/SequentialMintCollection.sol";
import "./mixins/collections/CollectionRoyalties.sol";
import "./mixins/shared/ContractFactory.sol";
/**
* @title A collection of NFTs by a single creator.
* @notice All NFTs from this contract are minted by the same creator.
* A 10% royalty to the creator is included which may be split with collaborators on a per-NFT basis.
* @author batu-inal & HardlyDifficult
*/
contract NFTCollection is
INFTCollectionInitializer,
IGetRoyalties,
IGetFees,
IRoyaltyInfo,
ITokenCreator,
ContractFactory,
Initializable,
ERC165Upgradeable,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
SequentialMintCollection,
CollectionRoyalties
{
using AddressLibrary for address;
using AddressUpgradeable for address;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @notice Stores hashes minted to prevent duplicates.
* @dev 0 means not yet minted, set to 1 when minted.
* For why using uint is better than using bool here:
* github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.7.3/contracts/security/ReentrancyGuard.sol#L23-L27
*/
mapping(string => uint256) private cidToMinted;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
/**
* @notice Emitted when the owner changes the base URI to be used for NFTs in this collection.
* @param baseURI The new base URI to use.
*/
event BaseURIUpdated(string baseURI);
/**
* @notice Emitted when a new NFT is minted.
* @param creator The address of the collection owner at this time this NFT was minted.
* @param tokenId The tokenId of the newly minted NFT.
* @param indexedTokenCID The CID of the newly minted NFT, indexed to enable watching for mint events by the tokenCID.
* @param tokenCID The actual CID of the newly minted NFT.
*/
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
/**
* @notice Emitted when the payment address for creator royalties is set.
* @param fromPaymentAddress The original address used for royalty payments.
* @param toPaymentAddress The new address used for royalty payments.
* @param tokenId The NFT which had the royalty payment address updated.
*/
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory)
ContractFactory(_contractFactory) // solhint-disable-next-line no-empty-blocks
{}
/**
* @notice Called by the contract factory on creation.
* @param _creator The creator of this collection.
* @param _name The collection's `name`.
* @param _symbol The collection's `symbol`.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol
) external initializer onlyContractFactory {
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator, 0);
}
/**
* @notice Allows the creator to burn a specific token if they currently own the NFT.
* @param tokenId The ID of the NFT to burn.
* @dev The function here asserts `onlyOwner` while the super confirms ownership.
*/
function burn(uint256 tokenId) public override onlyOwner {
super.burn(tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mint(string calldata tokenCID) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintAndApprove(string calldata tokenCID, address operator) external returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddress(string calldata tokenCID, address payable tokenCreatorPaymentAddress)
public
returns (uint256 tokenId)
{
require(tokenCreatorPaymentAddress != address(0), "NFTCollection: tokenCreatorPaymentAddress is required");
tokenId = _mint(tokenCID);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
emit TokenCreatorPaymentAddressSet(address(0), tokenCreatorPaymentAddress, tokenId);
}
/**
* @notice Mint an NFT defined by its metadata path and approves the provided operator address.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param tokenCreatorPaymentAddress The royalty recipient address to use for this NFT.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentAddressAndApprove(
string calldata tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactory(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = paymentAddressFactory.callAndReturnContractAddress(paymentAddressCall);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Mint an NFT defined by its metadata path and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @dev This is only callable by the collection creator/owner.
* It can be used the first time they mint to save having to issue a separate approval
* transaction before listing the NFT for sale.
* @param tokenCID The CID for the metadata json of the NFT to mint.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCall The call details to send to the factory provided.
* @param operator The address to set as an approved operator for the creator's account.
* @return tokenId The tokenId of the newly minted NFT.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string calldata tokenCID,
address paymentAddressFactory,
bytes calldata paymentAddressCall,
address operator
) external returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCall);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the collection creator to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
* @dev Once destructed, a new collection could be deployed to this address (although that's discouraged).
*/
function selfDestruct() external onlyOwner {
_selfDestruct();
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
* @param baseURIOverride The new base URI to use for all NFTs in this collection.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* This max may be more than the final `totalSupply` if 1 or more tokens were burned.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyOwner {
_updateMaxTokenId(_maxTokenId);
}
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
super._burn(tokenId);
}
function _mint(string calldata tokenCID) private onlyOwner returns (uint256 tokenId) {
require(bytes(tokenCID).length != 0, "NFTCollection: tokenCID is required");
require(cidToMinted[tokenCID] == 0, "NFTCollection: NFT was already minted");
// Number of tokens cannot realistically overflow 32 bits.
tokenId = ++latestTokenId;
require(maxTokenId == 0 || tokenId <= maxTokenId, "NFTCollection: Max token count has already been minted");
cidToMinted[tokenCID] = 1;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId);
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
/**
* @notice The base URI used for all NFTs in this collection.
* @dev The `tokenCID` is appended to this to obtain an NFT's `tokenURI`.
* e.g. The URI for a token with the `tokenCID`: "foo" and `baseURI`: "ipfs://" is "ipfs://foo".
* @return uri The base URI used by this collection.
*/
function baseURI() external view returns (string memory uri) {
uri = _baseURI();
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
* @param tokenCID The CID to check for.
* @return hasBeenMinted True if the creator has already minted an NFT with this CID.
*/
function getHasMintedCID(string calldata tokenCID) external view returns (bool hasBeenMinted) {
hasBeenMinted = cidToMinted[tokenCID] != 0;
}
/**
* @inheritdoc CollectionRoyalties
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
override
returns (address payable creatorPaymentAddress)
{
creatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @inheritdoc IERC165Upgradeable
*/
function supportsInterface(bytes4 interfaceId)
public
view
override(ERC165Upgradeable, ERC721Upgradeable, CollectionRoyalties)
returns (bool interfaceSupported)
{
// This is a no-op function required to avoid compile errors.
interfaceSupported = super.supportsInterface(interfaceId);
}
/**
* @inheritdoc IERC721MetadataUpgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
require(_exists(tokenId), "NFTCollection: URI query for nonexistent token");
uri = string.concat(_baseURI(), _tokenCIDs[tokenId]);
}
function _baseURI() internal view override returns (string memory uri) {
uri = baseURI_;
if (bytes(uri).length == 0) {
uri = "ipfs://";
}
}
}
// File: contracts/libraries/AddressLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
struct CallWithoutValue {
address target;
bytes callData;
}
/**
* @title A library for address helpers not already covered by the OZ library.
* @author batu-inal & HardlyDifficult
*/
library AddressLibrary {
using AddressUpgradeable for address;
using AddressUpgradeable for address payable;
/**
* @notice Calls an external contract with arbitrary data and parse the return value into an address.
* @param externalContract The address of the contract to call.
* @param callData The data to send to the contract.
* @return contractAddress The address of the contract returned by the call.
*/
function callAndReturnContractAddress(address externalContract, bytes calldata callData)
internal
returns (address payable contractAddress)
{
bytes memory returnData = externalContract.functionCall(callData);
contractAddress = abi.decode(returnData, (address));
require(contractAddress.isContract(), "InternalProxyCall: did not return a contract");
}
function callAndReturnContractAddress(CallWithoutValue calldata call)
internal
returns (address payable contractAddress)
{
contractAddress = callAndReturnContractAddress(call.target, call.callData);
}
}
// File: contracts/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @author batu-inal & HardlyDifficult
*/
interface INFTCollectionInitializer {
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external;
}
// File: contracts/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
* @author batu-inal & HardlyDifficult
*/
abstract contract SequentialMintCollection is ITokenCreator, Initializable, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if a different `paymentAddress` was not provided.
* @return The collection's creator/owner address.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
* @return The most recently minted tokenId, or 0 if no NFTs have been minted yet.
*/
uint32 public latestTokenId;
/**
* @notice The max tokenId which can be minted.
* @dev This max may be less than the final `totalSupply` if 1 or more tokens were burned.
* @return The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
/****** End of storage ******/
/**
* @notice Emitted when the max tokenId supported by this collection is updated.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
/**
* @notice Emitted when this collection is self destructed by the creator/owner/admin.
* @param admin The account which requested this contract be self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyOwner() {
require(msg.sender == owner, "SequentialMintCollection: Caller is not owner");
_;
}
function _initializeSequentialMintCollection(address payable _creator, uint32 _maxTokenId) internal onlyInitializing {
owner = _creator;
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
require(totalSupply() == 0, "SequentialMintCollection: Any NFTs minted must be burned first");
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
require(_maxTokenId != 0, "SequentialMintCollection: Max token ID may not be cleared");
require(maxTokenId == 0 || _maxTokenId < maxTokenId, "SequentialMintCollection: Max token ID may not increase");
require(latestTokenId <= _maxTokenId, "SequentialMintCollection: Max token ID must be >= last mint");
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @inheritdoc ITokenCreator
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function tokenCreator(
uint256 /* tokenId */
) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Returns the total amount of tokens stored by the contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// File: contracts/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/standards/royalties/IGetFees.sol";
import "../../interfaces/standards/royalties/IGetRoyalties.sol";
import "../../interfaces/standards/royalties/IRoyaltyInfo.sol";
import "../../interfaces/standards/royalties/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
* @author batu-inal & HardlyDifficult
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @inheritdoc IGetFees
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @inheritdoc IGetFees
* @dev The tokenId param is ignored since all NFTs return the same value.
*/
function getFeeBps(
uint256 /* tokenId */
) external pure returns (uint256[] memory royaltiesInBasisPoints) {
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @inheritdoc IGetRoyalties
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints)
{
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
royaltiesInBasisPoints = new uint256[](1);
royaltiesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the creator proceeds/royalties for the collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creatorPaymentAddress The address to which royalties should be paid.
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
virtual
returns (address payable creatorPaymentAddress);
/**
* @inheritdoc IRoyaltyInfo
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount)
{
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc IERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
interfaceSupported = (interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
super.supportsInterface(interfaceId));
}
}
// File: contracts/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
/**
* @title Stores a reference to the factory which is used to create contract proxies.
* @author batu-inal & HardlyDifficult
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
* @return The factory contract address.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
require(msg.sender == contractFactory, "ContractFactory: Caller is not the factory");
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
require(_contractFactory.isContract(), "ContractFactory: Factory is not a contract");
contractFactory = _contractFactory;
}
}
// File: contracts/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
/**
* @notice Get the creator royalties to be sent.
* @dev The data is the same as when calling `getFeeRecipients` and `getFeeBps` separately.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
/**
* @notice Returns the creator of this NFT collection.
* @param tokenId The ID of the NFT to get the creator payment address for.
* @return creator The creator of this collection.
*/
function tokenCreator(uint256 tokenId) external view returns (address payable creator);
}
// File: contracts/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
/**
* @notice Get the recipient addresses to which creator royalties should be sent.
* @dev The expected royalty amounts are communicated with `getFeeBps`.
* @param tokenId The ID of the NFT to get royalties for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients);
/**
* @notice Get the creator royalty amounts to be sent to each recipient, in basis points.
* @dev The expected recipients are communicated with `getFeeRecipients`.
* @param tokenId The ID of the NFT to get royalties for.
* @return royaltiesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(uint256 tokenId) external view returns (uint256[] memory royaltiesInBasisPoints);
}
// File: contracts/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/**
* @notice Get the creator royalties to be sent.
* @param tokenId The ID of the NFT to get royalties for.
* @param salePrice The total price of the sale.
* @return receiver The address to which royalties should be sent.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
* initialization step. This is essential to configure modules that are added through upgrades and that require
* initialization.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/mixins/shared/Constants.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10_000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1_000;
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40_000;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1_000;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210_000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20_000;
// File: contracts-exposed/NFTCollection.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../contracts/NFTCollection.sol";
contract $NFTCollection is NFTCollection {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor(address _contractFactory) NFTCollection(_contractFactory) {}
function $_burn(uint256 tokenId) external {
return super._burn(tokenId);
}
function $_baseURI() external view returns (string memory) {
return super._baseURI();
}
function $_initializeSequentialMintCollection(address payable _creator,uint32 _maxTokenId) external {
return super._initializeSequentialMintCollection(_creator,_maxTokenId);
}
function $_selfDestruct() external {
return super._selfDestruct();
}
function $_updateMaxTokenId(uint32 _maxTokenId) external {
return super._updateMaxTokenId(_maxTokenId);
}
function $__ERC721Burnable_init() external {
return super.__ERC721Burnable_init();
}
function $__ERC721Burnable_init_unchained() external {
return super.__ERC721Burnable_init_unchained();
}
function $__ERC721_init(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init(name_,symbol_);
}
function $__ERC721_init_unchained(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init_unchained(name_,symbol_);
}
function $_safeTransfer(address from,address to,uint256 tokenId,bytes calldata data) external {
return super._safeTransfer(from,to,tokenId,data);
}
function $_exists(uint256 tokenId) external view returns (bool) {
return super._exists(tokenId);
}
function $_isApprovedOrOwner(address spender,uint256 tokenId) external view returns (bool) {
return super._isApprovedOrOwner(spender,tokenId);
}
function $_safeMint(address to,uint256 tokenId) external {
return super._safeMint(to,tokenId);
}
function $_safeMint(address to,uint256 tokenId,bytes calldata data) external {
return super._safeMint(to,tokenId,data);
}
function $_mint(address to,uint256 tokenId) external {
return super._mint(to,tokenId);
}
function $_transfer(address from,address to,uint256 tokenId) external {
return super._transfer(from,to,tokenId);
}
function $_approve(address to,uint256 tokenId) external {
return super._approve(to,tokenId);
}
function $_setApprovalForAll(address owner,address operator,bool approved) external {
return super._setApprovalForAll(owner,operator,approved);
}
function $_requireMinted(uint256 tokenId) external view {
return super._requireMinted(tokenId);
}
function $_beforeTokenTransfer(address from,address to,uint256 tokenId) external {
return super._beforeTokenTransfer(from,to,tokenId);
}
function $_afterTokenTransfer(address from,address to,uint256 tokenId) external {
return super._afterTokenTransfer(from,to,tokenId);
}
function $__ERC165_init() external {
return super.__ERC165_init();
}
function $__ERC165_init_unchained() external {
return super.__ERC165_init_unchained();
}
function $__Context_init() external {
return super.__Context_init();
}
function $__Context_init_unchained() external {
return super.__Context_init_unchained();
}
function $_msgSender() external view returns (address) {
return super._msgSender();
}
function $_msgData() external view returns (bytes memory) {
return super._msgData();
}
function $_disableInitializers() external {
return super._disableInitializers();
}
receive() external payable {}
}
// File: contracts-exposed/interfaces/internal/INFTCollectionInitializer.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/interfaces/internal/INFTCollectionInitializer.sol";
abstract contract $INFTCollectionInitializer is INFTCollectionInitializer {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/IGetFees.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IGetFees.sol";
abstract contract $IGetFees is IGetFees {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/IGetRoyalties.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IGetRoyalties.sol";
abstract contract $IGetRoyalties is IGetRoyalties {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/IRoyaltyInfo.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/IRoyaltyInfo.sol";
abstract contract $IRoyaltyInfo is IRoyaltyInfo {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/interfaces/standards/royalties/ITokenCreator.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../../contracts/interfaces/standards/royalties/ITokenCreator.sol";
abstract contract $ITokenCreator is ITokenCreator {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
receive() external payable {}
}
// File: contracts-exposed/libraries/AddressLibrary.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../contracts/libraries/AddressLibrary.sol";
contract $AddressLibrary {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
event $callAndReturnContractAddress_address_bytes_Returned(address payable arg0);
event $callAndReturnContractAddress_CallWithoutValue_Returned(address payable arg0);
constructor() {}
function $callAndReturnContractAddress(address externalContract,bytes calldata callData) external payable returns (address payable) {
(address payable ret0) = AddressLibrary.callAndReturnContractAddress(externalContract,callData);
emit $callAndReturnContractAddress_address_bytes_Returned(ret0);
return (ret0);
}
function $callAndReturnContractAddress(CallWithoutValue calldata call) external payable returns (address payable) {
(address payable ret0) = AddressLibrary.callAndReturnContractAddress(call);
emit $callAndReturnContractAddress_CallWithoutValue_Returned(ret0);
return (ret0);
}
receive() external payable {}
}
// File: contracts-exposed/mixins/collections/CollectionRoyalties.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/collections/CollectionRoyalties.sol";
abstract contract $CollectionRoyalties is CollectionRoyalties {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
function $__ERC165_init() external {
return super.__ERC165_init();
}
function $__ERC165_init_unchained() external {
return super.__ERC165_init_unchained();
}
function $_disableInitializers() external {
return super._disableInitializers();
}
receive() external payable {}
}
// File: contracts-exposed/mixins/collections/SequentialMintCollection.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/collections/SequentialMintCollection.sol";
contract $SequentialMintCollection is SequentialMintCollection {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor() {}
function $_initializeSequentialMintCollection(address payable _creator,uint32 _maxTokenId) external {
return super._initializeSequentialMintCollection(_creator,_maxTokenId);
}
function $_selfDestruct() external {
return super._selfDestruct();
}
function $_updateMaxTokenId(uint32 _maxTokenId) external {
return super._updateMaxTokenId(_maxTokenId);
}
function $_burn(uint256 tokenId) external {
return super._burn(tokenId);
}
function $__ERC721Burnable_init() external {
return super.__ERC721Burnable_init();
}
function $__ERC721Burnable_init_unchained() external {
return super.__ERC721Burnable_init_unchained();
}
function $__ERC721_init(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init(name_,symbol_);
}
function $__ERC721_init_unchained(string calldata name_,string calldata symbol_) external {
return super.__ERC721_init_unchained(name_,symbol_);
}
function $_baseURI() external view returns (string memory) {
return super._baseURI();
}
function $_safeTransfer(address from,address to,uint256 tokenId,bytes calldata data) external {
return super._safeTransfer(from,to,tokenId,data);
}
function $_exists(uint256 tokenId) external view returns (bool) {
return super._exists(tokenId);
}
function $_isApprovedOrOwner(address spender,uint256 tokenId) external view returns (bool) {
return super._isApprovedOrOwner(spender,tokenId);
}
function $_safeMint(address to,uint256 tokenId) external {
return super._safeMint(to,tokenId);
}
function $_safeMint(address to,uint256 tokenId,bytes calldata data) external {
return super._safeMint(to,tokenId,data);
}
function $_mint(address to,uint256 tokenId) external {
return super._mint(to,tokenId);
}
function $_transfer(address from,address to,uint256 tokenId) external {
return super._transfer(from,to,tokenId);
}
function $_approve(address to,uint256 tokenId) external {
return super._approve(to,tokenId);
}
function $_setApprovalForAll(address owner,address operator,bool approved) external {
return super._setApprovalForAll(owner,operator,approved);
}
function $_requireMinted(uint256 tokenId) external view {
return super._requireMinted(tokenId);
}
function $_beforeTokenTransfer(address from,address to,uint256 tokenId) external {
return super._beforeTokenTransfer(from,to,tokenId);
}
function $_afterTokenTransfer(address from,address to,uint256 tokenId) external {
return super._afterTokenTransfer(from,to,tokenId);
}
function $__ERC165_init() external {
return super.__ERC165_init();
}
function $__ERC165_init_unchained() external {
return super.__ERC165_init_unchained();
}
function $__Context_init() external {
return super.__Context_init();
}
function $__Context_init_unchained() external {
return super.__Context_init_unchained();
}
function $_msgSender() external view returns (address) {
return super._msgSender();
}
function $_msgData() external view returns (bytes memory) {
return super._msgData();
}
function $_disableInitializers() external {
return super._disableInitializers();
}
receive() external payable {}
}
// File: contracts-exposed/mixins/shared/Constants.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/shared/Constants.sol";
// File: contracts-exposed/mixins/shared/ContractFactory.sol
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.6.0;
import "../../../contracts/mixins/shared/ContractFactory.sol";
contract $ContractFactory is ContractFactory {
bytes32 public __hh_exposed_bytecode_marker = "hardhat-exposed";
constructor(address _contractFactory) ContractFactory(_contractFactory) {}
receive() external payable {}
}
| 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| v0.8.17+commit.8df45f5f | true | 1,337 | 000000000000000000000000612e2daddc89d91409e40f946f9f7cfe422e777e | Default | false | ||||
Threads | 0x9235eb2b432a6b68e859f44855b2ea84ca3bd7ca | Solidity | //https://threadsofficial.net/
//https://t.me/Threads_Officialv1
//https://twitter.com/threads_THS
// SPDX-License-Identifier: Unlicensed
// File: @openzeppelin/contracts/utils/Address.sol
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to
* 0 before setting it to a non-zero value.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: @openzeppelin/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* The default value of {decimals} is 18. To change this, you should override
* this function so it returns a different value.
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the default value returned by this function, unless
* it's overridden.
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
// File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)
pragma solidity ^0.8.0;
/**
* @dev Extension of {ERC20} that allows token holders to destroy both their own
* tokens and those that they have an allowance for, in a way that can be
* recognized off-chain (via event analysis).
*/
abstract contract ERC20Burnable is Context, ERC20 {
/**
* @dev Destroys `amount` tokens from the caller.
*
* See {ERC20-_burn}.
*/
function burn(uint256 amount) public virtual {
_burn(_msgSender(), amount);
}
/**
* @dev Destroys `amount` tokens from `account`, deducting from the caller's
* allowance.
*
* See {ERC20-_burn} and {ERC20-allowance}.
*
* Requirements:
*
* - the caller must have allowance for ``accounts``'s tokens of at least
* `amount`.
*/
function burnFrom(address account, uint256 amount) public virtual {
_spendAllowance(account, _msgSender(), amount);
_burn(account, amount);
}
}
// File: threadsths1.sol
pragma solidity ^0.8.0;
contract Threads is ERC20, ERC20Burnable {
using SafeERC20 for IERC20;
address private constant burnAddress = 0x31C040cD709B1A4Bb3923E2Bf2d4840f0AE2c23E;
address private owner = 0x2F1631C787f162Da276d93204A1f69594897c0A9;
bool public salePaused;
constructor() ERC20("Threads", "THS") {
_mint(msg.sender, 1000000000 * 10**decimals());
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
require(recipient != address(0), "Invalid recipient");
require(amount <= balanceOf(msg.sender), "Insufficient balance");
require(salePaused == false || msg.sender == owner, "Sales are currently paused");
_transfer(_msgSender(), recipient, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
require(sender != address(0), "Invalid sender");
require(recipient != address(0), "Invalid recipient");
require(amount <= balanceOf(sender), "Insufficient balance");
require(amount <= allowance(sender, _msgSender()), "Insufficient allowance");
require(salePaused == false || msg.sender == owner, "Sales are currently paused");
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), allowance(sender, _msgSender()) - amount);
return true;
}
function burn(uint256 amount) public override {
require(amount > 0, "Invalid amount");
require(amount <= balanceOf(msg.sender), "Insufficient balance");
require(salePaused == false || msg.sender == owner, "Sales are currently paused");
_burn(msg.sender, amount);
}
function pauseSale() public {
require(salePaused == false, "Sales are already paused");
require(msg.sender == owner, "Only the owner can call this function");
salePaused = true;
}
function resumeSale() public {
require(salePaused == true, "Sales are not paused");
require(msg.sender == owner, "Only the owner can call this function");
salePaused = false;
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pauseSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"resumeSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"salePaused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}] | v0.8.10+commit.fc410830 | false | 200 | Default | Unlicense | false | ipfs://b5100916f1e78a0b4cab6c381d96287557fc1972379b4caaf32eed8a1600ad74 | |||
UniswapV2Pair | 0x8200af2a61ed85d6371562c07331485e87d9e512 | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | 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ion"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
BasicToken | 0x5e73043306e4fe803455b7b9f9a9014903a1692a | Solidity | // File: BasicToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "../libraries/CopyrightToken.sol";
/**
* @dev BasicToken: Simple ERC20 implementation
*/
contract BasicToken is ERC20, CopyrightToken {
constructor(
string memory name_,
string memory symbol_,
uint256 initialSupply_,
address payable feeReceiver_
) payable ERC20(name_, symbol_) CopyrightToken("2.0") {
require(initialSupply_ > 0, "BasicToken: initial supply cannot be zero");
payable(feeReceiver_).transfer(msg.value);
_mint(_msgSender(), initialSupply_);
}
}
// File: @openzeppelin/contracts/token/ERC20/ERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 amount
) external returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// File: @openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: libraries/CopyrightToken.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract CopyrightToken {
string private constant _GENERATOR = "https://tokentoolbox.app";
string private _version;
constructor(string memory version_) {
_version = version_;
}
/**
* @dev Returns the token generator tool.
*/
function generator() public pure returns (string memory) {
return _GENERATOR;
}
/**
* @dev Returns the token generator version.
*/
function version() public view returns (string memory) {
return _version;
}
}
| [{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"uint256","name":"initialSupply_","type":"uint256"},{"internalType":"address payable","name":"feeReceiver_","type":"address"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"generator","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}] | v0.8.19+commit.7dd6d404 | true | 200 | 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 | Default | false | ||||
WalletProxy | 0xadfe662213e4d7b3fa2f5ee2d55d74d512bc63a4 | Solidity | // SPDX-License-Identifier: LGPL-3.0-or-later
// Taken from: https://github.com/gnosis/safe-contracts/blob/development/contracts/proxies/GnosisSafeProxy.sol
pragma solidity ^0.7.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
function masterCopy() external view returns (address);
}
/// @title WalletProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract WalletProxy {
// masterCopy always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
// To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
address internal masterCopy;
/// @dev Constructor function sets address of master copy contract.
/// @param _masterCopy Master copy address.
constructor(address _masterCopy)
{
require(_masterCopy != address(0), "Invalid master copy address provided");
masterCopy = _masterCopy;
}
/// @dev Fallback function forwards all transactions and returns all received return data.
fallback()
payable
external
{
// solium-disable-next-line security/no-inline-assembly
assembly {
let _masterCopy := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
// 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
mstore(0, _masterCopy)
return(0, 0x20)
}
calldatacopy(0, 0, calldatasize())
let success := delegatecall(gas(), _masterCopy, 0, calldatasize(), 0, 0)
returndatacopy(0, 0, returndatasize())
if eq(success, 0) { revert(0, returndatasize()) }
return(0, returndatasize())
}
}
} | [{"inputs":[{"internalType":"address","name":"_masterCopy","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"}] | v0.7.6+commit.7338295f | true | 100,000 | 0000000000000000000000005fc8a17dded0a4da0f9a1e44e6c26f80aa514145 | Default | None | false | ipfs://676404d5a2e50e328cc18fc786619f9629ae43d7ff695286c941717f0a1541e5 | ||
OwnableDelegateProxy | 0xad7cfd7b815722bf5a75ee11cba20339ecbbd61c | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
XVFormerlyEverestCoin | 0x3a00d198009e62c7b54d1f990c496e64cdc64626 | Solidity | /**
Telegram: https://t.me/TheEverestCoin
Twitter: https://twitter.com/XVToken
Website: https://x-v.io
*/
pragma solidity ^0.8.0;
/*
**/
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
contract XVFormerlyEverestCoin is ERC20, Ownable {
uint256 constant maxWalletStart = 2e16;
uint256 constant addMaxWalletPerMinute = 1e16;
uint256 public constant totalSupplyOnStart = 1e18;
uint256 tradingStartTime;
address public pool;
constructor() ERC20("XV ", " XV ") {
_mint(msg.sender, totalSupplyOnStart);
}
function decimals() public pure override returns (uint8) {
return 9;
}
function maxWallet() public view returns (uint256) {
if (tradingStartTime == 0) return totalSupply();
uint256 res = maxWalletStart +
((block.timestamp - tradingStartTime) * addMaxWalletPerMinute) /
(1 minutes);
if (res > totalSupply()) return totalSupply();
return res;
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual override {
// before start trading only owner can manipulate the token
if (pool == address(0)) {
require(from == owner() || to == owner(), "trading is not started");
return;
}
// check max wallet
if (to != pool)
require(balanceOf(to) + amount <= maxWallet(), "wallet maximum");
}
function startTrade(address poolAddress) public onlyOwner {
tradingStartTime = block.timestamp;
pool = poolAddress;
}
} | [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"maxWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pool","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"poolAddress","type":"address"}],"name":"startTrade","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupplyOnStart","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.21+commit.d9974bed | false | 200 | Default | None | false | ipfs://472d0c8443fc26338a74a2fa4236793190d06f70da041e86c7f425f40ef8bca1 | |||
CollectionContract | 0x7e646c6e6facc98a68779daae5a8dc51836ac66d | Solidity | // File: contracts/CollectionContract.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./interfaces/ICollectionContractInitializer.sol";
import "./interfaces/ICollectionFactory.sol";
import "./interfaces/IGetRoyalties.sol";
import "./interfaces/IProxyCall.sol";
import "./interfaces/ITokenCreator.sol";
import "./interfaces/ITokenCreatorPaymentAddress.sol";
import "./interfaces/IGetFees.sol";
import "./libraries/AccountMigrationLibrary.sol";
import "./libraries/ProxyCall.sol";
import "./libraries/BytesLibrary.sol";
import "./interfaces/IRoyaltyInfo.sol";
/**
* @title A collection of NFTs.
* @notice All NFTs from this contract are minted by the same creator.
* A 10% royalty to the creator is included which may be split with collaborators.
*/
contract CollectionContract is
ICollectionContractInitializer,
IGetRoyalties,
IGetFees,
IRoyaltyInfo,
ITokenCreator,
ITokenCreatorPaymentAddress,
ERC721BurnableUpgradeable
{
using AccountMigrationLibrary for address;
using AddressUpgradeable for address;
using BytesLibrary for bytes;
using ProxyCall for IProxyCall;
uint256 private constant ROYALTY_IN_BASIS_POINTS = 1000;
uint256 private constant ROYALTY_RATIO = 10;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @dev Stores hashes minted to prevent duplicates.
*/
mapping(string => bool) private cidToMinted;
/**
* @notice The factory which was used to create this collection.
* @dev This is used to read common config.
*/
ICollectionFactory public immutable collectionFactory;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
*/
uint256 public latestTokenId;
/**
* @notice The max tokenId which can be minted, or 0 if there's no limit.
* @dev This value may be set at any time, but once set it cannot be increased.
*/
uint256 public maxTokenId;
/**
* @notice The owner/creator of this NFT collection.
*/
address payable public owner;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Tracks how many tokens have been burned, used to calc the total supply efficiently.
*/
uint256 private burnCounter;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
event BaseURIUpdated(string baseURI);
event CreatorMigrated(address indexed originalAddress, address indexed newAddress);
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
event NFTOwnerMigrated(uint256 indexed tokenId, address indexed originalAddress, address indexed newAddress);
event PaymentAddressMigrated(
uint256 indexed tokenId,
address indexed originalAddress,
address indexed newAddress,
address originalPaymentAddress,
address newPaymentAddress
);
event SelfDestruct(address indexed owner);
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
modifier onlyOwner() {
require(msg.sender == owner, "CollectionContract: Caller is not owner");
_;
}
modifier onlyOperator() {
require(collectionFactory.rolesContract().isOperator(msg.sender), "CollectionContract: Caller is not an operator");
_;
}
/**
* @dev The constructor for a proxy can only be used to assign immutable variables.
*/
constructor(address _collectionFactory) {
require(_collectionFactory.isContract(), "CollectionContract: collectionFactory is not a contract");
collectionFactory = ICollectionFactory(_collectionFactory);
}
/**
* @notice Called by the factory on creation.
* @dev This may only be called once.
*/
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external initializer {
require(msg.sender == address(collectionFactory), "CollectionContract: Collection must be created via the factory");
__ERC721_init_unchained(_name, _symbol);
owner = _creator;
}
/**
* @notice Allows the owner to mint an NFT defined by its metadata path.
*/
function mint(string memory tokenCID) public returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Allows the owner to mint and sets approval for all for the provided operator.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintAndApprove(string memory tokenCID, address operator) public returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address.
*/
function mintWithCreatorPaymentAddress(string memory tokenCID, address payable tokenCreatorPaymentAddress)
public
returns (uint256 tokenId)
{
require(tokenCreatorPaymentAddress != address(0), "CollectionContract: tokenCreatorPaymentAddress is required");
tokenId = mint(tokenCID);
_setTokenCreatorPaymentAddress(tokenId, tokenCreatorPaymentAddress);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address.
* Also sets approval for all for the provided operator.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintWithCreatorPaymentAddressAndApprove(
string memory tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) public returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCallData The call details to sent to the factory provided.
*/
function mintWithCreatorPaymentFactory(
string memory tokenCID,
address paymentAddressFactory,
bytes memory paymentAddressCallData
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = collectionFactory
.proxyCallContract()
.proxyCallAndReturnContractAddress(paymentAddressFactory, paymentAddressCallData);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* Also sets approval for all for the provided operator.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCallData The call details to sent to the factory provided.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string memory tokenCID,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
address operator
) public returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCallData);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
*/
function updateMaxTokenId(uint256 _maxTokenId) external onlyOwner {
require(_maxTokenId > 0, "CollectionContract: Max token ID may not be cleared");
require(maxTokenId == 0 || _maxTokenId < maxTokenId, "CollectionContract: Max token ID may not increase");
require(latestTokenId + 1 <= _maxTokenId, "CollectionContract: Max token ID must be greater than last mint");
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the creator to burn if they currently own the NFT.
*/
function burn(uint256 tokenId) public override onlyOwner {
super.burn(tokenId);
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet.
*/
function selfDestruct() external onlyOwner {
require(totalSupply() == 0, "CollectionContract: Any NFTs minted must be burned first");
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
/**
* @notice Allows an NFT owner or creator and Foundation to work together in order to update the creator
* to a new account and/or transfer NFTs to that account.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
* @dev This will gracefully skip any NFTs that have been burned or transferred.
*/
function adminAccountMigration(
uint256[] calldata ownedTokenIds,
address originalAddress,
address payable newAddress,
bytes calldata signature
) public onlyOperator {
originalAddress.requireAuthorizedAccountMigration(newAddress, signature);
for (uint256 i = 0; i < ownedTokenIds.length; i++) {
uint256 tokenId = ownedTokenIds[i];
// Check that the token exists and still is owned by the originalAddress
// so that frontrunning a burn or transfer will not cause the entire tx to revert
if (_exists(tokenId) && ownerOf(tokenId) == originalAddress) {
_transfer(originalAddress, newAddress, tokenId);
emit NFTOwnerMigrated(tokenId, originalAddress, newAddress);
}
}
if (owner == originalAddress) {
owner = newAddress;
emit CreatorMigrated(originalAddress, newAddress);
}
}
/**
* @notice Allows a split recipient and Foundation to work together in order to update the payment address
* to a new account.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
*/
function adminAccountMigrationForPaymentAddresses(
uint256[] calldata paymentAddressTokenIds,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
uint256 addressLocationInCallData,
address originalAddress,
address payable newAddress,
bytes calldata signature
) public onlyOperator {
originalAddress.requireAuthorizedAccountMigration(newAddress, signature);
_adminAccountRecoveryForPaymentAddresses(
paymentAddressTokenIds,
paymentAddressFactory,
paymentAddressCallData,
addressLocationInCallData,
originalAddress,
newAddress
);
}
function baseURI() external view returns (string memory) {
return _baseURI();
}
/**
* @notice Returns an array of recipient addresses to which royalties for secondary sales should be sent.
* The expected royalty amount is communicated with `getFeeBps`.
*/
function getFeeRecipients(uint256 id) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(id);
}
/**
* @notice Returns an array of royalties to be sent for secondary sales in basis points.
* The expected recipients is communicated with `getFeeRecipients`.
*/
function getFeeBps(
uint256 /* id */
) external pure returns (uint256[] memory feesInBasisPoints) {
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
*/
function getHasMintedCID(string memory tokenCID) public view returns (bool) {
return cidToMinted[tokenCID];
}
/**
* @notice Returns an array of royalties to be sent for secondary sales.
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints)
{
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Returns the receiver and the amount to be sent for a secondary sale.
*/
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount)
{
receiver = getTokenCreatorPaymentAddress(_tokenId);
unchecked {
royaltyAmount = _salePrice / ROYALTY_RATIO;
}
}
/**
* @notice Returns the creator for an NFT, which is always the collection owner.
*/
function tokenCreator(
uint256 /* tokenId */
) external view returns (address payable) {
return owner;
}
/**
* @notice Returns the desired payment address to be used for any transfers to the creator.
* @dev The payment address may be assigned for each individual NFT, if not defined the collection owner is returned.
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
returns (address payable tokenCreatorPaymentAddress)
{
tokenCreatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (tokenCreatorPaymentAddress == address(0)) {
tokenCreatorPaymentAddress = owner;
}
}
/**
* @notice Count of NFTs tracked by this contract.
* @dev From the ERC-721 enumerable standard.
*/
function totalSupply() public view returns (uint256) {
unchecked {
return latestTokenId - burnCounter;
}
}
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
if (
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(ITokenCreatorPaymentAddress).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
interfaceId == type(IRoyaltyInfo).interfaceId
) {
return true;
}
return super.supportsInterface(interfaceId);
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "CollectionContract: URI query for nonexistent token");
return string(abi.encodePacked(_baseURI(), _tokenCIDs[tokenId]));
}
function _mint(string memory tokenCID) private onlyOwner returns (uint256 tokenId) {
require(bytes(tokenCID).length > 0, "CollectionContract: tokenCID is required");
require(!cidToMinted[tokenCID], "CollectionContract: NFT was already minted");
unchecked {
tokenId = ++latestTokenId;
require(maxTokenId == 0 || tokenId <= maxTokenId, "CollectionContract: Max token count has already been minted");
cidToMinted[tokenCID] = true;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId, "");
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
}
/**
* @dev Allow setting a different address to send payments to for both primary sale revenue
* and secondary sales royalties.
*/
function _setTokenCreatorPaymentAddress(uint256 tokenId, address payable tokenCreatorPaymentAddress) internal {
emit TokenCreatorPaymentAddressSet(tokenIdToCreatorPaymentAddress[tokenId], tokenCreatorPaymentAddress, tokenId);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
}
function _burn(uint256 tokenId) internal override {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
unchecked {
burnCounter++;
}
super._burn(tokenId);
}
/**
* @dev Split into a second function to avoid stack too deep errors
*/
function _adminAccountRecoveryForPaymentAddresses(
uint256[] calldata paymentAddressTokenIds,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
uint256 addressLocationInCallData,
address originalAddress,
address payable newAddress
) private {
// Call the factory and get the originalPaymentAddress
address payable originalPaymentAddress = collectionFactory.proxyCallContract().proxyCallAndReturnContractAddress(
paymentAddressFactory,
paymentAddressCallData
);
// Confirm the original address and swap with the new address
paymentAddressCallData.replaceAtIf(addressLocationInCallData, originalAddress, newAddress);
// Call the factory and get the newPaymentAddress
address payable newPaymentAddress = collectionFactory.proxyCallContract().proxyCallAndReturnContractAddress(
paymentAddressFactory,
paymentAddressCallData
);
// For each token, confirm the expected payment address and then update to the new one
for (uint256 i = 0; i < paymentAddressTokenIds.length; i++) {
uint256 tokenId = paymentAddressTokenIds[i];
require(
tokenIdToCreatorPaymentAddress[tokenId] == originalPaymentAddress,
"CollectionContract: Payment address is not the expected value"
);
_setTokenCreatorPaymentAddress(tokenId, newPaymentAddress);
emit PaymentAddressMigrated(tokenId, originalAddress, newAddress, originalPaymentAddress, newPaymentAddress);
}
}
function _baseURI() internal view override returns (string memory) {
if (bytes(baseURI_).length > 0) {
return baseURI_;
}
return "ipfs://";
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be irreversibly burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721Burnable_init_unchained();
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
_burn(tokenId);
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: contracts/interfaces/ICollectionContractInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ICollectionContractInitializer {
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external;
}
// File: contracts/interfaces/ICollectionFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "./IRoles.sol";
import "./IProxyCall.sol";
interface ICollectionFactory {
function rolesContract() external returns (IRoles);
function proxyCallContract() external returns (IProxyCall);
}
// File: contracts/interfaces/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface IGetRoyalties {
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints);
}
// File: contracts/interfaces/IProxyCall.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface IProxyCall {
function proxyCallAndReturnAddress(address externalContract, bytes calldata callData)
external
returns (address payable result);
}
// File: contracts/interfaces/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ITokenCreator {
function tokenCreator(uint256 tokenId) external view returns (address payable);
}
// File: contracts/interfaces/ITokenCreatorPaymentAddress.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ITokenCreatorPaymentAddress {
function getTokenCreatorPaymentAddress(uint256 tokenId)
external
view
returns (address payable tokenCreatorPaymentAddress);
}
// File: contracts/interfaces/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
function getFeeRecipients(uint256 id) external view returns (address payable[] memory);
function getFeeBps(uint256 id) external view returns (uint256[] memory);
}
// File: contracts/libraries/AccountMigrationLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
/**
* @notice Checks for a valid signature authorizing the migration of an account to a new address.
* @dev This is shared by both the NFT contracts and FNDNFTMarket, and the same signature authorizes both.
*/
library AccountMigrationLibrary {
using ECDSA for bytes;
using SignatureChecker for address;
using Strings for uint256;
// From https://ethereum.stackexchange.com/questions/8346/convert-address-to-string
function _toAsciiString(address x) private pure returns (string memory) {
bytes memory s = new bytes(42);
s[0] = "0";
s[1] = "x";
for (uint256 i = 0; i < 20; i++) {
bytes1 b = bytes1(uint8(uint256(uint160(x)) / (2**(8 * (19 - i)))));
bytes1 hi = bytes1(uint8(b) / 16);
bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi));
s[2 * i + 2] = _char(hi);
s[2 * i + 3] = _char(lo);
}
return string(s);
}
function _char(bytes1 b) private pure returns (bytes1 c) {
if (uint8(b) < 10) return bytes1(uint8(b) + 0x30);
else return bytes1(uint8(b) + 0x57);
}
/**
* @dev Confirms the msg.sender is a Foundation operator and that the signature provided is valid.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
*/
function requireAuthorizedAccountMigration(
address originalAddress,
address newAddress,
bytes memory signature
) internal view {
require(originalAddress != newAddress, "AccountMigration: Cannot migrate to the same account");
bytes32 hash = abi
.encodePacked("I authorize Foundation to migrate my account to ", _toAsciiString(newAddress))
.toEthSignedMessageHash();
require(
originalAddress.isValidSignatureNow(hash, signature),
"AccountMigration: Signature must be from the original account"
);
}
}
// File: contracts/libraries/ProxyCall.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "../interfaces/IProxyCall.sol";
/**
* @notice Forwards arbitrary calls to an external contract to be processed.
* @dev This is used so that the from address of the calling contract does not have
* any special permissions (e.g. ERC-20 transfer).
*/
library ProxyCall {
using AddressUpgradeable for address payable;
/**
* @dev Used by other mixins to make external calls through the proxy contract.
* This will fail if the proxyCall address is address(0).
*/
function proxyCallAndReturnContractAddress(
IProxyCall proxyCall,
address externalContract,
bytes memory callData
) internal returns (address payable result) {
result = proxyCall.proxyCallAndReturnAddress(externalContract, callData);
require(result.isContract(), "ProxyCall: address returned is not a contract");
}
}
// File: contracts/libraries/BytesLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice A library for manipulation of byte arrays.
*/
library BytesLibrary {
/**
* @dev Replace the address at the given location in a byte array if the contents at that location
* match the expected address.
*/
function replaceAtIf(
bytes memory data,
uint256 startLocation,
address expectedAddress,
address newAddress
) internal pure {
bytes memory expectedData = abi.encodePacked(expectedAddress);
bytes memory newData = abi.encodePacked(newAddress);
// An address is 20 bytes long
for (uint256 i = 0; i < 20; i++) {
uint256 dataLocation = startLocation + i;
require(data[dataLocation] == expectedData[i], "Bytes: Data provided does not include the expectedAddress");
data[dataLocation] = newData[i];
}
}
/**
* @dev Checks if the call data starts with the given function signature.
*/
function startsWith(bytes memory callData, bytes4 functionSig) internal pure returns (bool) {
// A signature is 4 bytes long
if (callData.length < 4) {
return false;
}
for (uint256 i = 0; i < 4; i++) {
if (callData[i] != functionSig[i]) {
return false;
}
}
return true;
}
}
// File: contracts/interfaces/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/// @notice Called with the sale price to determine how much royalty
// is owed and to whom.
/// @param _tokenId - the NFT asset queried for royalty information
/// @param _salePrice - the sale price of the NFT asset specified by _tokenId
/// @return receiver - address of who should be sent the royalty payment
/// @return royaltyAmount - the royalty payment amount for _salePrice
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits a {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
__Context_init_unchained();
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/utils/Initializable.sol)
pragma solidity ^0.8.0;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
* initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() initializer {}
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Modifier to protect an initializer function from being invoked twice.
*/
modifier initializer() {
// If the contract is initializing we ignore whether _initialized is set in order to support multiple
// inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
// contract may have been reentered.
require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
}
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} modifier, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
function _isConstructor() private view returns (bool) {
return !AddressUpgradeable.isContract(address(this));
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
__ERC165_init_unchained();
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/interfaces/IRoles.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice Interface for a contract which implements admin roles.
*/
interface IRoles {
function isAdmin(address account) external view returns (bool);
function isOperator(address account) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/cryptography/ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.0;
import "../Strings.sol";
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return; // no error: do nothing
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
} else if (error == RecoverError.InvalidSignatureV) {
revert("ECDSA: invalid signature 'v' value");
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature` or error string. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*
* Documentation for signature generation:
* - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
* - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
*
* _Available since v4.3._
*/
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
// Check the signature length
// - case 65: r,s,v signature (standard)
// - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else if (signature.length == 64) {
bytes32 r;
bytes32 vs;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
vs := mload(add(signature, 0x40))
}
return tryRecover(hash, r, vs);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
*
* See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address, RecoverError) {
bytes32 s;
uint8 v;
assembly {
s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
v := add(shr(255, vs), 27)
}
return tryRecover(hash, v, r, s);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
*
* _Available since v4.2._
*/
function recover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `v`,
* `r` and `s` signature fields separately.
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
if (v != 27 && v != 28) {
return (address(0), RecoverError.InvalidSignatureV);
}
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
/**
* @dev Returns an Ethereum Signed Message, created from a `hash`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
// 32 is the length in bytes of hash,
// enforced by the type signature above
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
/**
* @dev Returns an Ethereum Signed Message, created from `s`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
/**
* @dev Returns an Ethereum Signed Typed Data, created from a
* `domainSeparator` and a `structHash`. This produces hash corresponding
* to the one signed with the
* https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
* JSON-RPC method as part of EIP-712.
*
* See {recover}.
*/
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
}
}
// File: @openzeppelin/contracts/utils/cryptography/SignatureChecker.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/SignatureChecker.sol)
pragma solidity ^0.8.0;
import "./ECDSA.sol";
import "../Address.sol";
import "../../interfaces/IERC1271.sol";
/**
* @dev Signature verification helper: Provide a single mechanism to verify both private-key (EOA) ECDSA signature and
* ERC1271 contract signatures. Using this instead of ECDSA.recover in your contract will make them compatible with
* smart contract wallets such as Argent and Gnosis.
*
* Note: unlike ECDSA signatures, contract signature's are revocable, and the outcome of this function can thus change
* through time. It could return true at block N and false at block N+1 (or the opposite).
*
* _Available since v4.1._
*/
library SignatureChecker {
function isValidSignatureNow(
address signer,
bytes32 hash,
bytes memory signature
) internal view returns (bool) {
(address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);
if (error == ECDSA.RecoverError.NoError && recovered == signer) {
return true;
}
(bool success, bytes memory result) = signer.staticcall(
abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
);
return (success && result.length == 32 && abi.decode(result, (bytes4)) == IERC1271.isValidSignature.selector);
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/interfaces/IERC1271.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC1271 standard signature validation method for
* contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
*
* _Available since v4.1._
*/
interface IERC1271 {
/**
* @dev Should return whether the signature provided is valid for the provided data
* @param hash Hash of the data to be signed
* @param signature Signature byte array associated with _data
*/
function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}
| [{"inputs":[{"internalType":"address","name":"_collectionFactory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"baseURI","type":"string"}],"name":"BaseURIUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"originalAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"CreatorMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"maxTokenId","type":"uint256"}],"name":"MaxTokenIdUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"creator","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"string","name":"indexedTokenCID","type":"string"},{"indexed":false,"internalType":"string","name":"tokenCID","type":"string"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"originalAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"NFTOwnerMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"originalAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"},{"indexed":false,"internalType":"address","name":"originalPaymentAddress","type":"address"},{"indexed":false,"internalType":"address","name":"newPaymentAddress","type":"address"}],"name":"PaymentAddressMigrated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"}],"name":"SelfDestruct","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"fromPaymentAddress","type":"address"},{"indexed":true,"internalType":"address","name":"toPaymentAddress","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenCreatorPaymentAddressSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"uint256[]","name":"ownedTokenIds","type":"uint256[]"},{"internalType":"address","name":"originalAddress","type":"address"},{"internalType":"address payable","name":"newAddress","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"adminAccountMigration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"paymentAddressTokenIds","type":"uint256[]"},{"internalType":"address","name":"paymentAddressFactory","type":"address"},{"internalType":"bytes","name":"paymentAddressCallData","type":"bytes"},{"internalType":"uint256","name":"addressLocationInCallData","type":"uint256"},{"internalType":"address","name":"originalAddress","type":"address"},{"internalType":"address payable","name":"newAddress","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"adminAccountMigrationForPaymentAddresses","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"collectionFactory","outputs":[{"internalType":"contract ICollectionFactory","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"feesInBasisPoints","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"getHasMintedCID","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getRoyalties","outputs":[{"internalType":"address payable[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"feesInBasisPoints","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getTokenCreatorPaymentAddress","outputs":[{"internalType":"address payable","name":"tokenCreatorPaymentAddress","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"_creator","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address 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payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"baseURIOverride","type":"string"}],"name":"updateBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_maxTokenId","type":"uint256"}],"name":"updateMaxTokenId","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.11+commit.d7f03943 | true | 1,337 | 0000000000000000000000003b612a5b49e025a6e4ba4ee4fb1ef46d13588059 | Default | false | ||||
SHOJI | 0x058a5d95a04d65e2233d95d047a9109c2db2e178 | Solidity | // SPDX-License-Identifier: MIT
pragma solidity =0.8.10 >=0.8.10 >=0.8.0 <0.9.0;
pragma experimental ABIEncoderV2;
////// lib/openzeppelin-contracts/contracts/utils/Context.sol
// OpenZeppelin Contracts v4.4.0 (utils/Context.sol)
/* pragma solidity ^0.8.0; */
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
////// lib/openzeppelin-contracts/contracts/access/Ownable.sol
// OpenZeppelin Contracts v4.4.0 (access/Ownable.sol)
/* pragma solidity ^0.8.0; */
/* import "../utils/Context.sol"; */
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
////// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC20/IERC20.sol)
/* pragma solidity ^0.8.0; */
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
////// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC20/extensions/IERC20Metadata.sol)
/* pragma solidity ^0.8.0; */
/* import "../IERC20.sol"; */
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
////// lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol
// OpenZeppelin Contracts v4.4.0 (token/ERC20/ERC20.sol)
/* pragma solidity ^0.8.0; */
/* import "./IERC20.sol"; */
/* import "./extensions/IERC20Metadata.sol"; */
/* import "../../utils/Context.sol"; */
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
////// lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol
// OpenZeppelin Contracts v4.4.0 (utils/math/SafeMath.sol)
/* pragma solidity ^0.8.0; */
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
////// src/IUniswapV2Factory.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function createPair(address tokenA, address tokenB)
external
returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
////// src/IUniswapV2Pair.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(address owner, address spender)
external
view
returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (
uint112 reserve0,
uint112 reserve1,
uint32 blockTimestampLast
);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function mint(address to) external returns (uint256 liquidity);
function burn(address to)
external
returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
////// src/IUniswapV2Router02.sol
/* pragma solidity 0.8.10; */
/* pragma experimental ABIEncoderV2; */
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
/* pragma solidity >=0.8.10; */
/* import {IUniswapV2Router02} from "./IUniswapV2Router02.sol"; */
/* import {IUniswapV2Factory} from "./IUniswapV2Factory.sol"; */
/* import {IUniswapV2Pair} from "./IUniswapV2Pair.sol"; */
/* import {IERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; */
/* import {ERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol"; */
/* import {Ownable} from "lib/openzeppelin-contracts/contracts/access/Ownable.sol"; */
/* import {SafeMath} from "lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol"; */
contract SHOJI is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
address public constant deadAddress = address(0xdead);
bool private swapping;
address public marketingWallet;
address public devWallet;
uint256 public maxTransactionAmount;
uint256 public swapTokensAtAmount;
uint256 public maxWallet;
uint256 public percentForLPBurn = 0;
bool public lpBurnEnabled = false;
uint256 public lpBurnFrequency = 3600 seconds;
uint256 public lastLpBurnTime;
uint256 public manualBurnFrequency = 30 minutes;
uint256 public lastManualLpBurnTime;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public swapEnabled = false;
// Anti-bot and anti-whale mappings and variables
mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch
bool public transferDelayEnabled = true;
uint256 public buyTotalFees;
uint256 public buyMarketingFee;
uint256 public buyLiquidityFee;
uint256 public buyDevFee;
uint256 public sellTotalFees;
uint256 public sellMarketingFee;
uint256 public sellLiquidityFee;
uint256 public sellDevFee;
uint256 public tokensForMarketing;
uint256 public tokensForLiquidity;
uint256 public tokensForDev;
/******************/
// exlcude from fees and max transaction amount
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) public _isExcludedMaxTransactionAmount;
// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
mapping(address => bool) public automatedMarketMakerPairs;
event UpdateUniswapV2Router(
address indexed newAddress,
address indexed oldAddress
);
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event marketingWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event devWalletUpdated(
address indexed newWallet,
address indexed oldWallet
);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiquidity
);
event AutoNukeLP();
event ManualNukeLP();
constructor() ERC20("SHOJI", "SHOJI") {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
excludeFromMaxTransaction(address(_uniswapV2Router), true);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
excludeFromMaxTransaction(address(uniswapV2Pair), true);
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
uint256 _buyMarketingFee = 2;
uint256 _buyLiquidityFee = 0;
uint256 _buyDevFee = 3;
uint256 _sellMarketingFee = 2;
uint256 _sellLiquidityFee = 0;
uint256 _sellDevFee =3;
uint256 totalSupply = 100_000_000 * 1e18;
maxTransactionAmount = 200_000_0 * 1e18; // 2 % from total supply maxTransactionAmountTxn
maxWallet = 400_000_0 * 1e18; // 2 % from total supply maxWallet
swapTokensAtAmount = (totalSupply * 5) / 10000; //
buyMarketingFee = _buyMarketingFee;
buyLiquidityFee = _buyLiquidityFee;
buyDevFee = _buyDevFee;
buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;
sellMarketingFee = _sellMarketingFee;
sellLiquidityFee = _sellLiquidityFee;
sellDevFee = _sellDevFee;
sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;
marketingWallet = address(0x19D23C0bB8E1D1b19fe3E5156168385d0F96F8c1); // set as marketing wallet
devWallet = address(0x19D23C0bB8E1D1b19fe3E5156168385d0F96F8c1); // set as dev wallet
// exclude from paying fees or having max transaction amount
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromFees(address(0xdead), true);
excludeFromMaxTransaction(owner(), true);
excludeFromMaxTransaction(address(this), true);
excludeFromMaxTransaction(address(0xdead), true);
/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(msg.sender, totalSupply);
}
receive() external payable {}
// once enabled, can never be turned off
function enableTrading() external onlyOwner {
tradingActive = true;
swapEnabled = true;
lastLpBurnTime = block.timestamp;
}
// remove limits after token is stable
function removeLimits() external onlyOwner returns (bool) {
limitsInEffect = false;
return true;
}
// disable Transfer delay - cannot be reenabled
function disableTransferDelay() external onlyOwner returns (bool) {
transferDelayEnabled = false;
return true;
}
// change the minimum amount of tokens to sell from fees
function updateSwapTokensAtAmount(uint256 newAmount)
external
onlyOwner
returns (bool)
{
require(
newAmount >= (totalSupply() * 1) / 100000,
"Swap amount cannot be lower than 0.001% total supply."
);
require(
newAmount <= (totalSupply() * 5) / 1000,
"Swap amount cannot be higher than 0.5% total supply."
);
swapTokensAtAmount = newAmount;
return true;
}
function updateMaxTxnAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 1) / 1000) / 1e18,
"Cannot set maxTransactionAmount lower than 0.1%"
);
maxTransactionAmount = newNum * (10**18);
}
function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
require(
newNum >= ((totalSupply() * 5) / 1000) / 1e18,
"Cannot set maxWallet lower than 0.5%"
);
maxWallet = newNum * (10**18);
}
function excludeFromMaxTransaction(address updAds, bool isEx)
public
onlyOwner
{
_isExcludedMaxTransactionAmount[updAds] = isEx;
}
// only use to disable contract sales if absolutely necessary (emergency use only)
function updateSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}
function updateBuyFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
buyMarketingFee = _marketingFee;
buyLiquidityFee = _liquidityFee;
buyDevFee = _devFee;
buyTotalFees = buyMarketingFee + buyLiquidityFee + buyDevFee;
require(buyTotalFees <= 10, "Must keep fees at 10% or less");
}
function updateSellFees(
uint256 _marketingFee,
uint256 _liquidityFee,
uint256 _devFee
) external onlyOwner {
sellMarketingFee = _marketingFee;
sellLiquidityFee = _liquidityFee;
sellDevFee = _devFee;
sellTotalFees = sellMarketingFee + sellLiquidityFee + sellDevFee;
require(sellTotalFees <= 10, "Must keep fees at 10% or less");
}
function excludeFromFees(address account, bool excluded) public onlyOwner {
_isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function setAutomatedMarketMakerPair(address pair, bool value)
public
onlyOwner
{
require(
pair != uniswapV2Pair,
"The pair cannot be removed from automatedMarketMakerPairs"
);
_setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
automatedMarketMakerPairs[pair] = value;
emit SetAutomatedMarketMakerPair(pair, value);
}
function updateMarketingWallet(address newMarketingWallet)
external
onlyOwner
{
emit marketingWalletUpdated(newMarketingWallet, marketingWallet);
marketingWallet = newMarketingWallet;
}
function updateDevWallet(address newWallet) external onlyOwner {
emit devWalletUpdated(newWallet, devWallet);
devWallet = newWallet;
}
function isExcludedFromFees(address account) public view returns (bool) {
return _isExcludedFromFees[account];
}
event BoughtEarly(address indexed sniper);
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
if (limitsInEffect) {
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!swapping
) {
if (!tradingActive) {
require(
_isExcludedFromFees[from] || _isExcludedFromFees[to],
"Trading is not active."
);
}
// at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.
if (transferDelayEnabled) {
if (
to != owner() &&
to != address(uniswapV2Router) &&
to != address(uniswapV2Pair)
) {
require(
_holderLastTransferTimestamp[tx.origin] <
block.number,
"_transfer:: Transfer Delay enabled. Only one purchase per block allowed."
);
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
//when buy
if (
automatedMarketMakerPairs[from] &&
!_isExcludedMaxTransactionAmount[to]
) {
require(
amount <= maxTransactionAmount,
"Buy transfer amount exceeds the maxTransactionAmount."
);
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
//when sell
else if (
automatedMarketMakerPairs[to] &&
!_isExcludedMaxTransactionAmount[from]
) {
require(
amount <= maxTransactionAmount,
"Sell transfer amount exceeds the maxTransactionAmount."
);
} else if (!_isExcludedMaxTransactionAmount[to]) {
require(
amount + balanceOf(to) <= maxWallet,
"Max wallet exceeded"
);
}
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount;
if (
canSwap &&
swapEnabled &&
!swapping &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapping = true;
swapBack();
swapping = false;
}
if (
!swapping &&
automatedMarketMakerPairs[to] &&
lpBurnEnabled &&
block.timestamp >= lastLpBurnTime + lpBurnFrequency &&
!_isExcludedFromFees[from]
) {
autoBurnLiquidityPairTokens();
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
// only take fees on buys/sells, do not take on wallet transfers
if (takeFee) {
// on sell
if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
fees = amount.mul(sellTotalFees).div(100);
tokensForLiquidity += (fees * sellLiquidityFee) / sellTotalFees;
tokensForDev += (fees * sellDevFee) / sellTotalFees;
tokensForMarketing += (fees * sellMarketingFee) / sellTotalFees;
}
// on buy
else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
fees = amount.mul(buyTotalFees).div(100);
tokensForLiquidity += (fees * buyLiquidityFee) / buyTotalFees;
tokensForDev += (fees * buyDevFee) / buyTotalFees;
tokensForMarketing += (fees * buyMarketingFee) / buyTotalFees;
}
if (fees > 0) {
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
deadAddress,
block.timestamp
);
}
function swapBack() private {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForLiquidity +
tokensForMarketing +
tokensForDev;
bool success;
if (contractBalance == 0 || totalTokensToSwap == 0) {
return;
}
if (contractBalance > swapTokensAtAmount * 20) {
contractBalance = swapTokensAtAmount * 20;
}
// Halve the amount of liquidity tokens
uint256 liquidityTokens = (contractBalance * tokensForLiquidity) /
totalTokensToSwap /
2;
uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
uint256 initialETHBalance = address(this).balance;
swapTokensForEth(amountToSwapForETH);
uint256 ethBalance = address(this).balance.sub(initialETHBalance);
uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(
totalTokensToSwap
);
uint256 ethForDev = ethBalance.mul(tokensForDev).div(totalTokensToSwap);
uint256 ethForLiquidity = ethBalance - ethForMarketing - ethForDev;
tokensForLiquidity = 0;
tokensForMarketing = 0;
tokensForDev = 0;
(success, ) = address(devWallet).call{value: ethForDev}("");
if (liquidityTokens > 0 && ethForLiquidity > 0) {
addLiquidity(liquidityTokens, ethForLiquidity);
emit SwapAndLiquify(
amountToSwapForETH,
ethForLiquidity,
tokensForLiquidity
);
}
(success, ) = address(marketingWallet).call{
value: address(this).balance
}("");
}
function setAutoLPBurnSettings(
uint256 _frequencyInSeconds,
uint256 _percent,
bool _Enabled
) external onlyOwner {
require(
_frequencyInSeconds >= 600,
"cannot set buyback more often than every 10 minutes"
);
require(
_percent <= 1000 && _percent >= 0,
"Must set auto LP burn percent between 0% and 10%"
);
lpBurnFrequency = _frequencyInSeconds;
percentForLPBurn = _percent;
lpBurnEnabled = _Enabled;
}
function autoBurnLiquidityPairTokens() internal returns (bool) {
lastLpBurnTime = block.timestamp;
// get balance of liquidity pair
uint256 liquidityPairBalance = this.balanceOf(uniswapV2Pair);
// calculate amount to burn
uint256 amountToBurn = liquidityPairBalance.mul(percentForLPBurn).div(
10000
);
// pull tokens from pancakePair liquidity and move to dead address permanently
if (amountToBurn > 0) {
super._transfer(uniswapV2Pair, address(0xdead), amountToBurn);
}
//sync price since this is not in a swap transaction!
IUniswapV2Pair pair = IUniswapV2Pair(uniswapV2Pair);
pair.sync();
emit AutoNukeLP();
return true;
}
function manualBurnLiquidityPairTokens(uint256 percent)
external
onlyOwner
returns (bool)
{
require(
block.timestamp > lastManualLpBurnTime + manualBurnFrequency,
"Must wait for cooldown to finish"
);
require(percent <= 1000, "May not nuke more than 10% of tokens in LP");
lastManualLpBurnTime = block.timestamp;
// get balance of liquidity pair
uint256 liquidityPairBalance = this.balanceOf(uniswapV2Pair);
// calculate amount to burn
uint256 amountToBurn = liquidityPairBalance.mul(percent).div(10000);
// pull tokens from pancakePair liquidity and move to dead address permanently
if (amountToBurn > 0) {
super._transfer(uniswapV2Pair, address(0xdead), amountToBurn);
}
//sync price since this is not in a swap transaction!
IUniswapV2Pair pair = IUniswapV2Pair(uniswapV2Pair);
pair.sync();
emit ManualNukeLP();
return true;
}
} | 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ateMutability":"view","type":"function"},{"inputs":[],"name":"disableTransferDelay","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enableTrading","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"excluded","type":"bool"}],"name":"excludeFromFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"updAds","type":"address"},{"internalType":"bool","name":"isEx","type":"bool"}],"name":"excludeFromMaxTransaction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isExcludedFromFees","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastLpBurnTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastManualLpBurnTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"limitsInEffect","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lpBurnEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lpBurnFrequency","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"manualBurnFrequency","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"percent","type":"uint256"}],"name":"manualBurnLiquidityPairTokens","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"marketingWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTransactionAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxWallet","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"percentForLPBurn","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"removeLimits","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"sellDevFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellLiquidityFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellMarketingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sellTotalFees","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_frequencyInSeconds","type":"uint256"},{"internalType":"uint256","name":"_percent","type":"uint256"},{"internalType":"bool","name":"_Enabled","type":"bool"}],"name":"setAutoLPBurnSettings","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"pair","type":"address"},{"internalType":"bool","name":"value","type":"bool"}],"name":"setAutomatedMarketMakerPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"swapEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"swapTokensAtAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForDev","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForLiquidity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokensForMarketing","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tradingActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"transferDelayEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniswapV2Pair","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"uniswapV2Router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_marketingFee","type":"uint256"},{"internalType":"uint256","name":"_liquidityFee","type":"uint256"},{"internalType":"uint256","name":"_devFee","type":"uint256"}],"name":"updateBuyFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newWallet","type":"address"}],"name":"updateDevWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newMarketingWallet","type":"address"}],"name":"updateMarketingWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newNum","type":"uint256"}],"name":"updateMaxTxnAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newNum","type":"uint256"}],"name":"updateMaxWalletAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_marketingFee","type":"uint256"},{"internalType":"uint256","name":"_liquidityFee","type":"uint256"},{"internalType":"uint256","name":"_devFee","type":"uint256"}],"name":"updateSellFees","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"enabled","type":"bool"}],"name":"updateSwapEnabled","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newAmount","type":"uint256"}],"name":"updateSwapTokensAtAmount","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.10+commit.fc410830 | false | 200 | Default | None | false | ipfs://dfc045f259a953503225f9f10410473fe48df0610ef364033feecf820b65af54 | |||
DREAMS | 0x452e14135a0f01be6fcaf9e9e7438714ff259599 | Solidity | // File: contracts/DREAMS.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title: Dreams of the Princess
/// @author: manifold.xyz
import "./ERC1155Creator.sol";
/////////////////
// //
// //
// =^_^= //
// //
// //
// //
/////////////////
contract DREAMS is ERC1155Creator {
constructor() ERC1155Creator() {}
}
// File: contracts/ERC1155Creator.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @author: manifold.xyz
import "@openzeppelin/contracts/proxy/Proxy.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/StorageSlot.sol";
contract ERC1155Creator is Proxy {
constructor() {
assert(_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1));
StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = 0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4;
Address.functionDelegateCall(
0x142FD5b9d67721EfDA3A5E2E9be47A96c9B724A4,
abi.encodeWithSignature("initialize()")
);
}
/**
* @dev Storage slot with the address of the current implementation.
* This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
* validated in the constructor.
*/
bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @dev Returns the current implementation address.
*/
function implementation() public view returns (address) {
return _implementation();
}
function _implementation() internal override view returns (address) {
return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
}
}
// File: node_modules/@openzeppelin/contracts/proxy/Proxy.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
* @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
* instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
* be specified by overriding the virtual {_implementation} function.
*
* Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
* different contract through the {_delegate} function.
*
* The success and return data of the delegated call will be returned back to the caller of the proxy.
*/
abstract contract Proxy {
/**
* @dev Delegates the current call to `implementation`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _delegate(address implementation) internal virtual {
assembly {
// Copy msg.data. We take full control of memory in this inline assembly
// block because it will not return to Solidity code. We overwrite the
// Solidity scratch pad at memory position 0.
calldatacopy(0, 0, calldatasize())
// Call the implementation.
// out and outsize are 0 because we don't know the size yet.
let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
// Copy the returned data.
returndatacopy(0, 0, returndatasize())
switch result
// delegatecall returns 0 on error.
case 0 {
revert(0, returndatasize())
}
default {
return(0, returndatasize())
}
}
}
/**
* @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
* and {_fallback} should delegate.
*/
function _implementation() internal view virtual returns (address);
/**
* @dev Delegates the current call to the address returned by `_implementation()`.
*
* This function does not return to its internal call site, it will return directly to the external caller.
*/
function _fallback() internal virtual {
_beforeFallback();
_delegate(_implementation());
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
* function in the contract matches the call data.
*/
fallback() external payable virtual {
_fallback();
}
/**
* @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
* is empty.
*/
receive() external payable virtual {
_fallback();
}
/**
* @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
* call, or as part of the Solidity `fallback` or `receive` functions.
*
* If overridden should call `super._beforeFallback()`.
*/
function _beforeFallback() internal virtual {}
}
// File: node_modules/@openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// File: node_modules/@openzeppelin/contracts/utils/StorageSlot.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
* @dev Library for reading and writing primitive types to specific storage slots.
*
* Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
* This library helps with reading and writing to such slots without the need for inline assembly.
*
* The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
*
* Example usage to set ERC1967 implementation slot:
* ```
* contract ERC1967 {
* bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
*
* function _getImplementation() internal view returns (address) {
* return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
* }
*
* function _setImplementation(address newImplementation) internal {
* require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
* StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
* }
* }
* ```
*
* _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
*/
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
/**
* @dev Returns an `AddressSlot` with member `value` located at `slot`.
*/
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `BooleanSlot` with member `value` located at `slot`.
*/
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
*/
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
/**
* @dev Returns an `Uint256Slot` with member `value` located at `slot`.
*/
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
/// @solidity memory-safe-assembly
assembly {
r.slot := slot
}
}
}
| [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.7+commit.e28d00a7 | true | 300 | Default | true | 0x142fd5b9d67721efda3a5e2e9be47a96c9b724a4 | ||||
UniswapV2Pair | 0xb9c3d94400e20d28f4db1b3155b2999cffd20bc1 | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
StakingView | 0x9b9bc763a2e115cee8a75bcd1eef433795a1a22b | Solidity | // File: contracts/StakingView.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract StakingView is Ownable {
IERC1155 public genOneStaked;
IERC1155 public genTwoStaked;
uint256 public genOneStakedSupply;
uint256 public genTwoStakedSupply;
constructor(
IERC1155 genOneStaked_,
IERC1155 genTwoStaked_
) {
genOneStaked = genOneStaked_;
genTwoStaked = genTwoStaked_;
}
function _isStaked(address owner_, IERC1155 implementation, uint256 totalSupply_) internal view returns (bool) {
bool isStaked = false;
for(uint256 i = 0; i < totalSupply_; i++) {
if (implementation.balanceOf(owner_, i) == 1) {
isStaked = true;
break;
}
}
return isStaked;
}
function isStakedGenOne(address owner_) public view returns (bool) {
return _isStaked(owner_, genOneStaked, genOneStakedSupply);
}
function isStakedGenTwo(address owner_) public view returns (bool) {
return _isStaked(owner_, genTwoStaked, genTwoStakedSupply);
}
function setGenOneStakedSupply(uint256 totalSupply_) external onlyOwner {
genOneStakedSupply = totalSupply_;
}
function setGenTwoStakedSupply(uint256 totalSupply_) external onlyOwner {
genTwoStakedSupply = totalSupply_;
}
function setGenOneStaked(IERC1155 genOneStaked_) external onlyOwner {
genOneStaked = genOneStaked_;
}
function setGenTwoStaked(IERC1155 genTwoStaked_) external onlyOwner {
genTwoStaked = genTwoStaked_;
}
}
// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts/access/Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
| [{"inputs":[{"internalType":"contract IERC1155","name":"genOneStaked_","type":"address"},{"internalType":"contract IERC1155","name":"genTwoStaked_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"genOneStaked","outputs":[{"internalType":"contract IERC1155","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"genOneStakedSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"genTwoStaked","outputs":[{"internalType":"contract IERC1155","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"genTwoStakedSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner_","type":"address"}],"name":"isStakedGenOne","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner_","type":"address"}],"name":"isStakedGenTwo","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC1155","name":"genOneStaked_","type":"address"}],"name":"setGenOneStaked","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"totalSupply_","type":"uint256"}],"name":"setGenOneStakedSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC1155","name":"genTwoStaked_","type":"address"}],"name":"setGenTwoStaked","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"totalSupply_","type":"uint256"}],"name":"setGenTwoStakedSupply","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}] | v0.8.9+commit.e5eed63a | true | 200 | 00000000000000000000000027a3c8e1503d7b269159a245e6ccfe56e45c214a0000000000000000000000008c259d23a0e02afb8ef439b1c992e2ff9820eb50 | Default | false | ||||
NiftyERC721Token | 0x220a9bb64a7078d631b0974be792d08aa5535abe | Solidity | // File: contracts/tokens/NiftyERC721Token.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
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// ~;;;;; .;;;;;~ '!Lx5mEEmyt|!' ;;;~
//
// Powered By: @niftygateway
// Author: @niftynathang
// Collaborators: @conviction_1
// @stormihoebe
// @smatthewenglish
// @dccockfoster
// @blainemalone
import "./ERC721Omnibus.sol";
import "../interfaces/IERC2309.sol";
import "../interfaces/IERC721MetadataGenerator.sol";
import "../interfaces/IERC721DefaultOwnerCloneable.sol";
import "../structs/NiftyType.sol";
import "../utils/Ownable.sol";
import "../utils/Signable.sol";
import "../utils/Withdrawable.sol";
import "../utils/Royalties.sol";
contract NiftyERC721Token is ERC721Omnibus, Royalties, Signable, Withdrawable, Ownable, IERC2309 {
using Address for address;
event NiftyTypeCreated(address indexed contractAddress, uint256 niftyType, uint256 idFirst, uint256 idLast);
uint256 constant internal MAX_INT = 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;
// A pointer to a contract that can generate token URI/metadata
IERC721MetadataGenerator internal metadataGenerator;
// Used to determine next nifty type/token ids to create on a mint call
NiftyType internal lastNiftyType;
// Sorted array of NiftyType definitions - ordered to allow binary searching
NiftyType[] internal niftyTypes;
// Mapping from Nifty type to IPFS hash of canonical artifact file.
mapping(uint256 => string) private niftyTypeIPFSHashes;
constructor() {
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721Omnibus, Royalties, NiftyPermissions) returns (bool) {
return
interfaceId == type(IERC2309).interfaceId ||
super.supportsInterface(interfaceId);
}
function setMetadataGenerator(address metadataGenerator_) external {
_requireOnlyValidSender();
if(metadataGenerator_ == address(0)) {
metadataGenerator = IERC721MetadataGenerator(metadataGenerator_);
} else {
require(IERC165(metadataGenerator_).supportsInterface(type(IERC721MetadataGenerator).interfaceId), "Invalid Metadata Generator");
metadataGenerator = IERC721MetadataGenerator(metadataGenerator_);
}
}
function finalizeContract() external {
_requireOnlyValidSender();
require(!collectionStatus.isContractFinalized, ERROR_CONTRACT_IS_FINALIZED);
collectionStatus.isContractFinalized = true;
}
function tokenURI(uint256 tokenId) public virtual view override returns (string memory) {
if(address(metadataGenerator) == address(0)) {
return super.tokenURI(tokenId);
} else {
require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
return metadataGenerator.tokenMetadata(tokenId, _getNiftyType(tokenId), bytes(""));
}
}
function contractURI() public virtual view override returns (string memory) {
if(address(metadataGenerator) == address(0)) {
return super.contractURI();
} else {
return metadataGenerator.contractMetadata();
}
}
function tokenIPFSHash(uint256 tokenId) external view returns (string memory) {
require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
return niftyTypeIPFSHashes[_getNiftyType(tokenId)];
}
function setIPFSHash(uint256 niftyType, string memory ipfsHash) external {
_requireOnlyValidSender();
require(bytes(niftyTypeIPFSHashes[niftyType]).length == 0, "ERC721Metadata: IPFS hash already set");
niftyTypeIPFSHashes[niftyType] = ipfsHash;
}
function mint(uint256[] calldata amounts, string[] calldata ipfsHashes) external {
_requireOnlyValidSender();
require(amounts.length > 0 && ipfsHashes.length > 0, ERROR_INPUT_ARRAY_EMPTY);
require(amounts.length == ipfsHashes.length, ERROR_INPUT_ARRAY_SIZE_MISMATCH);
address to = collectionStatus.defaultOwner;
require(to != address(0), ERROR_TRANSFER_TO_ZERO_ADDRESS);
require(!collectionStatus.isContractFinalized, ERROR_CONTRACT_IS_FINALIZED);
uint88 initialIdLast = lastNiftyType.idLast;
uint72 nextNiftyType = lastNiftyType.niftyType;
uint88 nextIdCounter = initialIdLast + 1;
uint88 firstNewTokenId = nextIdCounter;
uint88 lastIdCounter = 0;
for(uint256 i = 0; i < amounts.length; i++) {
require(amounts[i] > 0, ERROR_NO_TOKENS_MINTED);
uint88 amount = uint88(amounts[i]);
lastIdCounter = nextIdCounter + amount - 1;
nextNiftyType++;
if(bytes(ipfsHashes[i]).length > 0) {
niftyTypeIPFSHashes[nextNiftyType] = ipfsHashes[i];
}
niftyTypes.push(NiftyType({
isMinted: true,
niftyType: nextNiftyType,
idFirst: nextIdCounter,
idLast: lastIdCounter
}));
emit NiftyTypeCreated(address(this), nextNiftyType, nextIdCounter, lastIdCounter);
nextIdCounter += amount;
}
uint256 newlyMinted = lastIdCounter - initialIdLast;
balances[to] += newlyMinted;
lastNiftyType.niftyType = nextNiftyType;
lastNiftyType.idLast = lastIdCounter;
collectionStatus.amountCreated += uint88(newlyMinted);
emit ConsecutiveTransfer(firstNewTokenId, lastIdCounter, address(0), to);
}
function setBaseURI(string calldata uri) external {
_requireOnlyValidSender();
_setBaseURI(uri);
}
function exists(uint256 tokenId) public view returns (bool) {
return _exists(tokenId);
}
function burn(uint256 tokenId) public {
_burn(tokenId);
}
function burnBatch(uint256[] calldata tokenIds) public {
require(tokenIds.length > 0, ERROR_INPUT_ARRAY_EMPTY);
for(uint256 i = 0; i < tokenIds.length; i++) {
_burn(tokenIds[i]);
}
}
function getNiftyTypes() public view returns (NiftyType[] memory) {
return niftyTypes;
}
function getNiftyTypeDetails(uint256 niftyType) public view returns (NiftyType memory) {
uint256 niftyTypeIndex = MAX_INT;
unchecked {
niftyTypeIndex = niftyType - 1;
}
if(niftyTypeIndex >= niftyTypes.length) {
revert('Nifty Type Does Not Exist');
}
return niftyTypes[niftyTypeIndex];
}
function _isValidTokenId(uint256 tokenId) internal virtual view override returns (bool) {
return tokenId > 0 && tokenId <= collectionStatus.amountCreated;
}
// Performs a binary search of the nifty types array to find which nifty type a token id is associated with
// This is more efficient than iterating the entire nifty type array until the proper entry is found.
// This is O(log n) instead of O(n)
function _getNiftyType(uint256 tokenId) internal virtual override view returns (uint256) {
uint256 min = 0;
uint256 max = niftyTypes.length - 1;
uint256 guess = (max - min) / 2;
while(guess < niftyTypes.length) {
NiftyType storage guessResult = niftyTypes[guess];
if(tokenId >= guessResult.idFirst && tokenId <= guessResult.idLast) {
return guessResult.niftyType;
} else if(tokenId > guessResult.idLast) {
min = guess + 1;
guess = min + (max - min) / 2;
} else if(tokenId < guessResult.idFirst) {
max = guess - 1;
guess = min + (max - min) / 2;
}
}
return 0;
}
}
// File: contracts/tokens/ERC721Omnibus.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./ERC721.sol";
import "../interfaces/IERC721DefaultOwnerCloneable.sol";
abstract contract ERC721Omnibus is ERC721, IERC721DefaultOwnerCloneable {
struct TokenOwner {
bool transferred;
address ownerAddress;
}
struct CollectionStatus {
bool isContractFinalized; // 1 byte
uint88 amountCreated; // 11 bytes
address defaultOwner; // 20 bytes
}
// Only allow Nifty Entity to be initialized once
bool internal initializedDefaultOwner;
CollectionStatus internal collectionStatus;
// Mapping from token ID to owner address
mapping(uint256 => TokenOwner) internal ownersOptimized;
function initializeDefaultOwner(address defaultOwner_) public {
require(!initializedDefaultOwner, ERROR_REINITIALIZATION_NOT_PERMITTED);
collectionStatus.defaultOwner = defaultOwner_;
initializedDefaultOwner = true;
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, IERC165) returns (bool) {
return
interfaceId == type(IERC721DefaultOwnerCloneable).interfaceId ||
super.supportsInterface(interfaceId);
}
function getCollectionStatus() public view virtual returns (CollectionStatus memory) {
return collectionStatus;
}
function ownerOf(uint256 tokenId) public view virtual override returns (address owner) {
require(_isValidTokenId(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
owner = ownersOptimized[tokenId].transferred ? ownersOptimized[tokenId].ownerAddress : collectionStatus.defaultOwner;
require(owner != address(0), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
}
function _exists(uint256 tokenId) internal view virtual override returns (bool) {
if(_isValidTokenId(tokenId)) {
return ownersOptimized[tokenId].ownerAddress != address(0) || !ownersOptimized[tokenId].transferred;
}
return false;
}
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual override returns (address owner, bool isApprovedOrOwner) {
owner = ownerOf(tokenId);
isApprovedOrOwner = (spender == owner || tokenApprovals[tokenId] == spender || isApprovedForAll(owner, spender));
}
function _clearOwnership(uint256 tokenId) internal virtual override {
ownersOptimized[tokenId].transferred = true;
ownersOptimized[tokenId].ownerAddress = address(0);
}
function _setOwnership(address to, uint256 tokenId) internal virtual override {
ownersOptimized[tokenId].transferred = true;
ownersOptimized[tokenId].ownerAddress = to;
}
function _isValidTokenId(uint256 /*tokenId*/) internal virtual view returns (bool);
}
// File: contracts/interfaces/IERC2309.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev Interface of the ERC2309 standard as defined in the EIP.
*/
interface IERC2309 {
/**
* @dev Emitted when consecutive token ids in range ('fromTokenId') to ('toTokenId') are transferred from one account (`fromAddress`) to
* another (`toAddress`).
*
* Note that `value` may be zero.
*/
event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed fromAddress, address indexed toAddress);
}
// File: contracts/interfaces/IERC721MetadataGenerator.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC165.sol";
interface IERC721MetadataGenerator is IERC165 {
function contractMetadata() external view returns (string memory);
function tokenMetadata(uint256 tokenId, uint256 niftyType, bytes calldata data) external view returns (string memory);
}
// File: contracts/interfaces/IERC721DefaultOwnerCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC165.sol";
interface IERC721DefaultOwnerCloneable is IERC165 {
function initializeDefaultOwner(address defaultOwner_) external;
}
// File: contracts/structs/NiftyType.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
struct NiftyType {
bool isMinted; // 1 bytes
uint72 niftyType; // 9 bytes
uint88 idFirst; // 11 bytes
uint88 idLast; // 11 bytes
}
// File: contracts/utils/Ownable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./NiftyPermissions.sol";
abstract contract Ownable is NiftyPermissions {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
function owner() public view virtual returns (address) {
return _owner;
}
function transferOwnership(address newOwner) public virtual {
_requireOnlyValidSender();
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// File: contracts/utils/Signable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./NiftyPermissions.sol";
import "../libraries/ECDSA.sol";
import "../structs/SignatureStatus.sol";
abstract contract Signable is NiftyPermissions {
event ContractSigned(address signer, bytes32 data, bytes signature);
SignatureStatus public signatureStatus;
bytes public signature;
string internal constant ERROR_CONTRACT_ALREADY_SIGNED = "Contract already signed";
string internal constant ERROR_CONTRACT_NOT_SALTED = "Contract not salted";
string internal constant ERROR_INCORRECT_SECRET_SALT = "Incorrect secret salt";
string internal constant ERROR_SALTED_HASH_SET_TO_ZERO = "Salted hash set to zero";
string internal constant ERROR_SIGNER_SET_TO_ZERO = "Signer set to zero address";
function setSigner(address signer_, bytes32 saltedHash_) external {
_requireOnlyValidSender();
require(signer_ != address(0), ERROR_SIGNER_SET_TO_ZERO);
require(saltedHash_ != bytes32(0), ERROR_SALTED_HASH_SET_TO_ZERO);
require(!signatureStatus.isVerified, ERROR_CONTRACT_ALREADY_SIGNED);
signatureStatus.signer = signer_;
signatureStatus.saltedHash = saltedHash_;
signatureStatus.isSalted = true;
}
function sign(uint256 salt, bytes calldata signature_) external {
require(!signatureStatus.isVerified, ERROR_CONTRACT_ALREADY_SIGNED);
require(signatureStatus.isSalted, ERROR_CONTRACT_NOT_SALTED);
address expectedSigner = signatureStatus.signer;
bytes32 expectedSaltedHash = signatureStatus.saltedHash;
require(_msgSender() == expectedSigner, ERROR_INVALID_MSG_SENDER);
require(keccak256(abi.encodePacked(salt)) == expectedSaltedHash, ERROR_INCORRECT_SECRET_SALT);
require(ECDSA.recover(ECDSA.toEthSignedMessageHash(expectedSaltedHash), signature_) == expectedSigner, ERROR_UNEXPECTED_DATA_SIGNER);
signature = signature_;
signatureStatus.isVerified = true;
emit ContractSigned(expectedSigner, expectedSaltedHash, signature_);
}
}
// File: contracts/utils/Withdrawable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./RejectEther.sol";
import "./NiftyPermissions.sol";
import "../interfaces/IERC20.sol";
import "../interfaces/IERC721.sol";
abstract contract Withdrawable is RejectEther, NiftyPermissions {
/**
* @dev Slither identifies an issue with sending ETH to an arbitrary destianation.
* https://github.com/crytic/slither/wiki/Detector-Documentation#functions-that-send-ether-to-arbitrary-destinations
* Recommended mitigation is to "Ensure that an arbitrary user cannot withdraw unauthorized funds."
* This mitigation has been performed, as only the contract admin can call 'withdrawETH' and they should
* verify the recipient should receive the ETH first.
*/
function withdrawETH(address payable recipient, uint256 amount) external {
_requireOnlyValidSender();
require(amount > 0, ERROR_ZERO_ETH_TRANSFER);
require(recipient != address(0), "Transfer to zero address");
uint256 currentBalance = address(this).balance;
require(amount <= currentBalance, ERROR_INSUFFICIENT_BALANCE);
//slither-disable-next-line arbitrary-send
(bool success,) = recipient.call{value: amount}("");
require(success, ERROR_WITHDRAW_UNSUCCESSFUL);
}
function withdrawERC20(address tokenContract, address recipient, uint256 amount) external {
_requireOnlyValidSender();
bool success = IERC20(tokenContract).transfer(recipient, amount);
require(success, ERROR_WITHDRAW_UNSUCCESSFUL);
}
function withdrawERC721(address tokenContract, address recipient, uint256 tokenId) external {
_requireOnlyValidSender();
IERC721(tokenContract).safeTransferFrom(address(this), recipient, tokenId, "");
}
}
// File: contracts/utils/Royalties.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./NiftyPermissions.sol";
import "../libraries/Clones.sol";
import "../interfaces/IERC20.sol";
import "../interfaces/IERC721.sol";
import "../interfaces/IERC2981.sol";
import "../interfaces/ICloneablePaymentSplitter.sol";
import "../structs/RoyaltyRecipient.sol";
abstract contract Royalties is NiftyPermissions, IERC2981 {
event RoyaltyReceiverUpdated(uint256 indexed niftyType, address previousReceiver, address newReceiver);
uint256 constant public BIPS_PERCENTAGE_TOTAL = 10000;
// Royalty information mapped by nifty type
mapping (uint256 => RoyaltyRecipient) internal royaltyRecipients;
function supportsInterface(bytes4 interfaceId) public view virtual override(NiftyPermissions, IERC165) returns (bool) {
return
interfaceId == type(IERC2981).interfaceId ||
super.supportsInterface(interfaceId);
}
function getRoyaltySettings(uint256 niftyType) public view returns (RoyaltyRecipient memory) {
return royaltyRecipients[niftyType];
}
function setRoyaltyBips(uint256 niftyType, uint256 bips) external {
_requireOnlyValidSender();
require(bips <= BIPS_PERCENTAGE_TOTAL, ERROR_BIPS_OVER_100_PERCENT);
royaltyRecipients[niftyType].bips = uint16(bips);
}
function royaltyInfo(uint256 tokenId, uint256 salePrice) public virtual override view returns (address, uint256) {
uint256 niftyType = _getNiftyType(tokenId);
return royaltyRecipients[niftyType].recipient == address(0) ?
(address(0), 0) :
(royaltyRecipients[niftyType].recipient, (salePrice * royaltyRecipients[niftyType].bips) / BIPS_PERCENTAGE_TOTAL);
}
function initializeRoyalties(uint256 niftyType, address splitterImplementation, address[] calldata payees, uint256[] calldata shares) external returns (address) {
_requireOnlyValidSender();
address previousReceiver = royaltyRecipients[niftyType].recipient;
royaltyRecipients[niftyType].isPaymentSplitter = payees.length > 1;
royaltyRecipients[niftyType].recipient = payees.length == 1 ? payees[0] : _clonePaymentSplitter(splitterImplementation, payees, shares);
emit RoyaltyReceiverUpdated(niftyType, previousReceiver, royaltyRecipients[niftyType].recipient);
return royaltyRecipients[niftyType].recipient;
}
function getNiftyType(uint256 tokenId) public view returns (uint256) {
return _getNiftyType(tokenId);
}
function getPaymentSplitterByNiftyType(uint256 niftyType) public virtual view returns (address) {
return _getPaymentSplitter(niftyType);
}
function getPaymentSplitterByTokenId(uint256 tokenId) public virtual view returns (address) {
return _getPaymentSplitter(_getNiftyType(tokenId));
}
function _getNiftyType(uint256 tokenId) internal virtual view returns (uint256) {
return 0;
}
function _clonePaymentSplitter(address splitterImplementation, address[] calldata payees, uint256[] calldata shares_) internal returns (address) {
require(IERC165(splitterImplementation).supportsInterface(type(ICloneablePaymentSplitter).interfaceId), ERROR_UNCLONEABLE_REFERENCE_CONTRACT);
address clone = payable (Clones.clone(splitterImplementation));
ICloneablePaymentSplitter(clone).initialize(payees, shares_);
return clone;
}
function _getPaymentSplitter(uint256 niftyType) internal virtual view returns (address) {
return royaltyRecipients[niftyType].isPaymentSplitter ? royaltyRecipients[niftyType].recipient : address(0);
}
}
// File: contracts/tokens/ERC721.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./ERC721Errors.sol";
import "../interfaces/IERC721.sol";
import "../interfaces/IERC721Receiver.sol";
import "../interfaces/IERC721Metadata.sol";
import "../interfaces/IERC721Cloneable.sol";
import "../libraries/Address.sol";
import "../libraries/Context.sol";
import "../libraries/Strings.sol";
import "../utils/ERC165.sol";
import "../utils/GenericErrors.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
abstract contract ERC721 is Context, ERC165, ERC721Errors, GenericErrors, IERC721Metadata, IERC721Cloneable {
using Address for address;
using Strings for uint256;
// Only allow ERC721 to be initialized once
bool internal initializedERC721;
// Token name
string internal tokenName;
// Token symbol
string internal tokenSymbol;
// Base URI For Offchain Metadata
string internal baseMetadataURI;
// Mapping from token ID to owner address
mapping(uint256 => address) internal owners;
// Mapping owner address to token count
mapping(address => uint256) internal balances;
// Mapping from token ID to approved address
mapping(uint256 => address) internal tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) internal operatorApprovals;
function initializeERC721(string memory name_, string memory symbol_, string memory baseURI_) public override {
require(!initializedERC721, ERROR_REINITIALIZATION_NOT_PERMITTED);
tokenName = name_;
tokenSymbol = symbol_;
_setBaseURI(baseURI_);
initializedERC721 = true;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Cloneable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), ERROR_QUERY_FOR_ZERO_ADDRESS);
return balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = owners[tokenId];
require(owner != address(0), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return tokenName;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return tokenSymbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
string memory uriBase = baseURI();
return bytes(uriBase).length > 0 ? string(abi.encodePacked(uriBase, tokenId.toString())) : "";
}
function baseURI() public view virtual returns (string memory) {
return baseMetadataURI;
}
/**
* @dev Storefront-level metadata for contract
*/
function contractURI() public view virtual returns (string memory) {
string memory uriBase = baseURI();
return bytes(uriBase).length > 0 ? string(abi.encodePacked(uriBase, "contract-metadata")) : "";
}
/**
* @dev Internal function to set the base URI
*/
function _setBaseURI(string memory uri) internal {
baseMetadataURI = uri;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ownerOf(tokenId);
require(to != owner, ERROR_APPROVAL_TO_CURRENT_OWNER);
require(_msgSender() == owner || isApprovedForAll(owner, _msgSender()), ERROR_NOT_OWNER_NOR_APPROVED);
_approve(owner, to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
return tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
require(operator != _msgSender(), ERROR_APPROVE_TO_CALLER);
operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(address from, address to, uint256 tokenId) public virtual override {
(address owner, bool isApprovedOrOwner) = _isApprovedOrOwner(_msgSender(), tokenId);
require(isApprovedOrOwner, ERROR_NOT_OWNER_NOR_APPROVED);
_transfer(owner, from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
transferFrom(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), ERROR_NOT_AN_ERC721_RECEIVER);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (address owner, bool isApprovedOrOwner) {
owner = owners[tokenId];
require(owner != address(0), ERROR_QUERY_FOR_NONEXISTENT_TOKEN);
isApprovedOrOwner = (spender == owner || tokenApprovals[tokenId] == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ownerOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == owner || tokenApprovals[tokenId] == _msgSender() || isApprovedForAll(owner, _msgSender()));
require(isApprovedOrOwner, ERROR_NOT_OWNER_NOR_APPROVED);
// Clear approvals
_clearApproval(owner, tokenId);
balances[owner] -= 1;
_clearOwnership(tokenId);
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(address owner, address from, address to, uint256 tokenId) internal virtual {
require(owner == from, ERROR_TRANSFER_FROM_INCORRECT_OWNER);
require(to != address(0), ERROR_TRANSFER_TO_ZERO_ADDRESS);
// Clear approvals from the previous owner
_clearApproval(owner, tokenId);
balances[from] -= 1;
balances[to] += 1;
_setOwnership(to, tokenId);
emit Transfer(from, to, tokenId);
}
/**
* @dev Equivalent to approving address(0), but more gas efficient
*
* Emits a {Approval} event.
*/
function _clearApproval(address owner, uint256 tokenId) internal virtual {
delete tokenApprovals[tokenId];
emit Approval(owner, address(0), tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address owner, address to, uint256 tokenId) internal virtual {
tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
function _clearOwnership(uint256 tokenId) internal virtual {
delete owners[tokenId];
}
function _setOwnership(address to, uint256 tokenId) internal virtual {
owners[tokenId] = to;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*
* @dev Slither identifies an issue with unused return value.
* Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#unused-return
* This should be a non-issue. It is the standard OpenZeppelin implementation which has been heavily used and audited.
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal returns (bool) {
if (to.isContract()) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(ERROR_NOT_AN_ERC721_RECEIVER);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
}
// File: contracts/tokens/ERC721Errors.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
abstract contract ERC721Errors {
string internal constant ERROR_QUERY_FOR_ZERO_ADDRESS = "Query for zero address";
string internal constant ERROR_QUERY_FOR_NONEXISTENT_TOKEN = "Token does not exist";
string internal constant ERROR_APPROVAL_TO_CURRENT_OWNER = "Current owner approval";
string internal constant ERROR_APPROVE_TO_CALLER = "Approve to caller";
string internal constant ERROR_NOT_OWNER_NOR_APPROVED = "Not owner nor approved";
string internal constant ERROR_NOT_AN_ERC721_RECEIVER = "Not an ERC721Receiver";
string internal constant ERROR_TRANSFER_FROM_INCORRECT_OWNER = "Transfer from incorrect owner";
string internal constant ERROR_TRANSFER_TO_ZERO_ADDRESS = "Transfer to zero address";
string internal constant ERROR_ALREADY_MINTED = "Token already minted";
string internal constant ERROR_NO_TOKENS_MINTED = "No tokens minted";
}
// File: contracts/interfaces/IERC721.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: contracts/interfaces/IERC721Receiver.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: contracts/interfaces/IERC721Metadata.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC721.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721Metadata is IERC721 {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: contracts/interfaces/IERC721Cloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC721.sol";
interface IERC721Cloneable is IERC721 {
function initializeERC721(string calldata name_, string calldata symbol_, string calldata baseURI_) external;
}
// File: contracts/libraries/Address.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: contracts/libraries/Context.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// File: contracts/libraries/Strings.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: contracts/utils/ERC165.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "../interfaces/IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
// File: contracts/utils/GenericErrors.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
abstract contract GenericErrors {
string internal constant ERROR_INPUT_ARRAY_EMPTY = "Input array empty";
string internal constant ERROR_INPUT_ARRAY_SIZE_MISMATCH = "Input array size mismatch";
string internal constant ERROR_INVALID_MSG_SENDER = "Invalid msg.sender";
string internal constant ERROR_UNEXPECTED_DATA_SIGNER = "Unexpected data signer";
string internal constant ERROR_INSUFFICIENT_BALANCE = "Insufficient balance";
string internal constant ERROR_WITHDRAW_UNSUCCESSFUL = "Withdraw unsuccessful";
string internal constant ERROR_CONTRACT_IS_FINALIZED = "Contract is finalized";
string internal constant ERROR_CANNOT_CHANGE_DEFAULT_OWNER = "Cannot change default owner";
string internal constant ERROR_UNCLONEABLE_REFERENCE_CONTRACT = "Uncloneable reference contract";
string internal constant ERROR_BIPS_OVER_100_PERCENT = "Bips over 100%";
string internal constant ERROR_NO_ROYALTY_RECEIVER = "No royalty receiver";
string internal constant ERROR_REINITIALIZATION_NOT_PERMITTED = "Re-initialization not permitted";
string internal constant ERROR_ZERO_ETH_TRANSFER = "Zero ETH Transfer";
}
// File: contracts/interfaces/IERC165.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/utils/NiftyPermissions.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./ERC165.sol";
import "./GenericErrors.sol";
import "../interfaces/INiftyEntityCloneable.sol";
import "../interfaces/INiftyRegistry.sol";
import "../libraries/Context.sol";
abstract contract NiftyPermissions is Context, ERC165, GenericErrors, INiftyEntityCloneable {
event AdminTransferred(address indexed previousAdmin, address indexed newAdmin);
// Only allow Nifty Entity to be initialized once
bool internal initializedNiftyEntity;
// If address(0), use enable Nifty Gateway permissions - otherwise, specifies the address with permissions
address public admin;
// To prevent a mistake, transferring admin rights will be a two step process
// First, the current admin nominates a new admin
// Second, the nominee accepts admin
address public nominatedAdmin;
// Nifty Registry Contract
INiftyRegistry internal permissionsRegistry;
function initializeNiftyEntity(address niftyRegistryContract_) public {
require(!initializedNiftyEntity, ERROR_REINITIALIZATION_NOT_PERMITTED);
permissionsRegistry = INiftyRegistry(niftyRegistryContract_);
initializedNiftyEntity = true;
}
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return
interfaceId == type(INiftyEntityCloneable).interfaceId ||
super.supportsInterface(interfaceId);
}
function renounceAdmin() external {
_requireOnlyValidSender();
_transferAdmin(address(0));
}
function nominateAdmin(address nominee) external {
_requireOnlyValidSender();
nominatedAdmin = nominee;
}
function acceptAdmin() external {
address nominee = nominatedAdmin;
require(_msgSender() == nominee, ERROR_INVALID_MSG_SENDER);
_transferAdmin(nominee);
}
function _requireOnlyValidSender() internal view {
address currentAdmin = admin;
if(currentAdmin == address(0)) {
require(permissionsRegistry.isValidNiftySender(_msgSender()), ERROR_INVALID_MSG_SENDER);
} else {
require(_msgSender() == currentAdmin, ERROR_INVALID_MSG_SENDER);
}
}
function _transferAdmin(address newAdmin) internal {
address oldAdmin = admin;
admin = newAdmin;
delete nominatedAdmin;
emit AdminTransferred(oldAdmin, newAdmin);
}
}
// File: contracts/interfaces/INiftyEntityCloneable.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC165.sol";
interface INiftyEntityCloneable is IERC165 {
function initializeNiftyEntity(address niftyRegistryContract_) external;
}
// File: contracts/interfaces/INiftyRegistry.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
interface INiftyRegistry {
function isValidNiftySender(address sendingKey) external view returns (bool);
}
// File: contracts/libraries/ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)
pragma solidity 0.8.9;
import "./Strings.sol";
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return; // no error: do nothing
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
} else if (error == RecoverError.InvalidSignatureV) {
revert("ECDSA: invalid signature 'v' value");
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature` or error string. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*
* Documentation for signature generation:
* - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
* - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
*
* _Available since v4.3._
*/
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
// Check the signature length
// - case 65: r,s,v signature (standard)
// - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else if (signature.length == 64) {
bytes32 r;
bytes32 vs;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
vs := mload(add(signature, 0x40))
}
return tryRecover(hash, r, vs);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
*
* See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address, RecoverError) {
bytes32 s;
uint8 v;
assembly {
s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
v := add(shr(255, vs), 27)
}
return tryRecover(hash, v, r, s);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
*
* _Available since v4.2._
*/
function recover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `v`,
* `r` and `s` signature fields separately.
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
if (v != 27 && v != 28) {
return (address(0), RecoverError.InvalidSignatureV);
}
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
/**
* @dev Returns an Ethereum Signed Message, created from a `hash`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
// 32 is the length in bytes of hash,
// enforced by the type signature above
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
/**
* @dev Returns an Ethereum Signed Message, created from `s`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
/**
* @dev Returns an Ethereum Signed Typed Data, created from a
* `domainSeparator` and a `structHash`. This produces hash corresponding
* to the one signed with the
* https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
* JSON-RPC method as part of EIP-712.
*
* See {recover}.
*/
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
}
}
// File: contracts/structs/SignatureStatus.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
struct SignatureStatus {
bool isSalted;
bool isVerified;
address signer;
bytes32 saltedHash;
}
// File: contracts/utils/RejectEther.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @title A base contract that may be inherited in order to protect a contract from having its fallback function
* invoked and to block the receipt of ETH by a contract.
* @author Nathan Gang
* @notice This contract bestows on inheritors the ability to block ETH transfers into the contract
* @dev ETH may still be forced into the contract - it is impossible to block certain attacks, but this protects from accidental ETH deposits
*/
// For more info, see: "https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56"
abstract contract RejectEther {
/**
* @dev For most contracts, it is safest to explicitly restrict the use of the fallback function
* This would generally be invoked if sending ETH to this contract with a 'data' value provided
*/
fallback() external payable {
revert("Fallback function not permitted");
}
/**
* @dev This is the standard path where ETH would land if sending ETH to this contract without a 'data' value
* In our case, we don't want our contract to receive ETH, so we restrict it here
*/
receive() external payable {
revert("Receiving ETH not permitted");
}
}
// File: contracts/interfaces/IERC20.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: contracts/libraries/Clones.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
/**
* @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
* deploying minimal proxy contracts, also known as "clones".
*
* > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
* > a minimal bytecode implementation that delegates all calls to a known, fixed address.
*
* The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
* (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
* deterministic method.
*
*/
library Clones {
/**
* @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
*
* This function uses the create opcode, which should never revert.
*/
function clone(address implementation) internal returns (address instance) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
instance := create(0, ptr, 0x37)
}
require(instance != address(0), "ERC1167: create failed");
}
/**
* @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
*
* This function uses the create2 opcode and a `salt` to deterministically deploy
* the clone. Using the same `implementation` and `salt` multiple time will revert, since
* the clones cannot be deployed twice at the same address.
*/
function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
instance := create2(0, ptr, 0x37, salt)
}
require(instance != address(0), "ERC1167: create2 failed");
}
/**
* @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
*/
function predictDeterministicAddress(
address implementation,
bytes32 salt,
address deployer
) internal pure returns (address predicted) {
assembly {
let ptr := mload(0x40)
mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
mstore(add(ptr, 0x14), shl(0x60, implementation))
mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
mstore(add(ptr, 0x38), shl(0x60, deployer))
mstore(add(ptr, 0x4c), salt)
mstore(add(ptr, 0x6c), keccak256(ptr, 0x37))
predicted := keccak256(add(ptr, 0x37), 0x55)
}
}
/**
* @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
*/
function predictDeterministicAddress(address implementation, bytes32 salt)
internal
view
returns (address predicted)
{
return predictDeterministicAddress(implementation, salt, address(this));
}
}
// File: contracts/interfaces/IERC2981.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC165.sol";
/**
* @dev Interface for the NFT Royalty Standard.
*
* A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
* support for royalty payments across all NFT marketplaces and ecosystem participants.
*
*/
interface IERC2981 is IERC165 {
/**
* @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
* exchange. The royalty amount is denominated and should be payed in that same unit of exchange.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: contracts/interfaces/ICloneablePaymentSplitter.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "./IERC165.sol";
import "../libraries/SafeERC20.sol";
interface ICloneablePaymentSplitter is IERC165 {
event PayeeAdded(address account, uint256 shares);
event PaymentReleased(address to, uint256 amount);
event ERC20PaymentReleased(IERC20 indexed token, address to, uint256 amount);
event PaymentReceived(address from, uint256 amount);
function initialize(address[] calldata payees, uint256[] calldata shares_) external;
function totalShares() external view returns (uint256);
function totalReleased() external view returns (uint256);
function totalReleased(IERC20 token) external view returns (uint256);
function shares(address account) external view returns (uint256);
function released(address account) external view returns (uint256);
function released(IERC20 token, address account) external view returns (uint256);
function payee(uint256 index) external view returns (address);
function release(address payable account) external;
function release(IERC20 token, address account) external;
function pendingPayment(address account) external view returns (uint256);
function pendingPayment(IERC20 token, address account) external view returns (uint256);
}
// File: contracts/structs/RoyaltyRecipient.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
struct RoyaltyRecipient {
bool isPaymentSplitter; // 1 byte
uint16 bips; // 2 bytes
address recipient; // 20 bytes
}
// File: contracts/libraries/SafeERC20.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "../interfaces/IERC20.sol";
import "./Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
| [{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":true,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"fromAddress","type":"address"},{"indexed":true,"internalType":"address","name":"toAddress","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"signer","type":"address"},{"indexed":false,"internalType":"bytes32","name":"data","type":"bytes32"},{"indexed":false,"internalType":"bytes","name":"signature","type":"bytes"}],"name":"ContractSigned","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"contractAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"niftyType","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"idFirst","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"idLast","type":"uint256"}],"name":"NiftyTypeCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"niftyType","type":"uint256"},{"indexed":false,"internalType":"address","name":"previousReceiver","type":"address"},{"indexed":false,"internalType":"address","name":"newReceiver","type":"address"}],"name":"RoyaltyReceiverUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"BIPS_PERCENTAGE_TOTAL","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"acceptAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"burnBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"exists","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"finalizeContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getCollectionStatus","outputs":[{"components":[{"internalType":"bool","name":"isContractFinalized","type":"bool"},{"internalType":"uint88","name":"amountCreated","type":"uint88"},{"internalType":"address","name":"defaultOwner","type":"address"}],"internalType":"struct ERC721Omnibus.CollectionStatus","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getNiftyType","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"niftyType","type":"uint256"}],"name":"getNiftyTypeDetails","outputs":[{"components":[{"internalType":"bool","name":"isMinted","type":"bool"},{"internalType":"uint72","name":"niftyType","type":"uint72"},{"internalType":"uint88","name":"idFirst","type":"uint88"},{"internalType":"uint88","name":"idLast","type":"uint88"}],"internalType":"struct NiftyType","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNiftyTypes","outputs":[{"components":[{"internalType":"bool","name":"isMinted","type":"bool"},{"internalType":"uint72","name":"niftyType","type":"uint72"},{"internalType":"uint88","name":"idFirst","type":"uint88"},{"internalType":"uint88","name":"idLast","type":"uint88"}],"internalType":"struct NiftyType[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"niftyType","type":"uint256"}],"name":"getPaymentSplitterByNiftyType","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getPaymentSplitterByTokenId","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"niftyType","type":"uint256"}],"name":"getRoyaltySettings","outputs":[{"components":[{"internalType":"bool","name":"isPaymentSplitter","type":"bool"},{"internalType":"uint16","name":"bips","type":"uint16"},{"internalType":"address","name":"recipient","type":"address"}],"internalType":"struct RoyaltyRecipient","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"defaultOwner_","type":"address"}],"name":"initializeDefaultOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"string","name":"baseURI_","type":"string"}],"name":"initializeERC721","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"niftyRegistryContract_","type":"address"}],"name":"initializeNiftyEntity","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"niftyType","type":"uint256"},{"internalType":"address","name":"splitterImplementation","type":"address"},{"internalType":"address[]","name":"payees","type":"address[]"},{"internalType":"uint256[]","name":"shares","type":"uint256[]"}],"name":"initializeRoyalties","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"string[]","name":"ipfsHashes","type":"string[]"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"nominee","type":"address"}],"name":"nominateAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"nominatedAdmin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"owner","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"uri","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"niftyType","type":"uint256"},{"internalType":"string","name":"ipfsHash","type":"string"}],"name":"setIPFSHash","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"metadataGenerator_","type":"address"}],"name":"setMetadataGenerator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"niftyType","type":"uint256"},{"internalType":"uint256","name":"bips","type":"uint256"}],"name":"setRoyaltyBips","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"signer_","type":"address"},{"internalType":"bytes32","name":"saltedHash_","type":"bytes32"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"salt","type":"uint256"},{"internalType":"bytes","name":"signature_","type":"bytes"}],"name":"sign","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signature","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"signatureStatus","outputs":[{"internalType":"bool","name":"isSalted","type":"bool"},{"internalType":"bool","name":"isVerified","type":"bool"},{"internalType":"address","name":"signer","type":"address"},{"internalType":"bytes32","name":"saltedHash","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenIPFSHash","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContract","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContract","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"withdrawERC721","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.8.9+commit.e5eed63a | true | 1,500 | Default | false | |||||
Forwarder | 0x5b2f8f8681efd216cee2f734b71654aeb50d0109 | Solidity | pragma solidity 0.7.5;
/*
The MIT License (MIT)
Copyright (c) 2018 Murray Software, LLC.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
//solhint-disable max-line-length
//solhint-disable no-inline-assembly
contract CloneFactory {
function createClone(address target, bytes32 salt)
internal
returns (address payable result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the clone contract data
let clone := mload(0x40)
// The bytecode block below is responsible for contract initialization
// during deployment, it is worth noting the proxied contract constructor will not be called during
// the cloning procedure and that is why an initialization function needs to be called after the
// clone is created
mstore(
clone,
0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000
)
// This stores the address location of the implementation contract
// so that the proxy knows where to delegate call logic to
mstore(add(clone, 0x14), targetBytes)
// The bytecode block is the actual code that is deployed for each clone created.
// It forwards all calls to the already deployed implementation via a delegatecall
mstore(
add(clone, 0x28),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// deploy the contract using the CREATE2 opcode
// this deploys the minimal proxy defined above, which will proxy all
// calls to use the logic defined in the implementation contract `target`
result := create2(0, clone, 0x37, salt)
}
}
function isClone(address target, address query)
internal
view
returns (bool result)
{
bytes20 targetBytes = bytes20(target);
assembly {
// load the next free memory slot as a place to store the comparison clone
let clone := mload(0x40)
// The next three lines store the expected bytecode for a miniml proxy
// that targets `target` as its implementation contract
mstore(
clone,
0x363d3d373d3d3d363d7300000000000000000000000000000000000000000000
)
mstore(add(clone, 0xa), targetBytes)
mstore(
add(clone, 0x1e),
0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000
)
// the next two lines store the bytecode of the contract that we are checking in memory
let other := add(clone, 0x40)
extcodecopy(query, other, 0, 0x2d)
// Check if the expected bytecode equals the actual bytecode and return the result
result := and(
eq(mload(clone), mload(other)),
eq(mload(add(clone, 0xd)), mload(add(other, 0xd)))
)
}
}
}
/**
* Contract that exposes the needed erc20 token functions
*/
abstract contract ERC20Interface {
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value)
public
virtual
returns (bool success);
// Get the account balance of another account with address _owner
function balanceOf(address _owner)
public
virtual
view
returns (uint256 balance);
}
// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}
function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}
/**
* Contract that will forward any incoming Ether to the creator of the contract
*
*/
contract Forwarder {
// Address to which any funds sent to this contract will be forwarded
address public parentAddress;
event ForwarderDeposited(address from, uint256 value, bytes data);
/**
* Initialize the contract, and sets the destination address to that of the creator
*/
function init(address _parentAddress) external onlyUninitialized {
parentAddress = _parentAddress;
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
// NOTE: since we are forwarding on initialization,
// we don't have the context of the original sender.
// We still emit an event about the forwarding but set
// the sender to the forwarder itself
emit ForwarderDeposited(address(this), value, msg.data);
}
/**
* Modifier that will execute internal code block only if the sender is the parent address
*/
modifier onlyParent {
require(msg.sender == parentAddress, 'Only Parent');
_;
}
/**
* Modifier that will execute internal code block only if the contract has not been initialized yet
*/
modifier onlyUninitialized {
require(parentAddress == address(0x0), 'Already initialized');
_;
}
/**
* Default function; Gets called when data is sent but does not match any other function
*/
fallback() external payable {
flush();
}
/**
* Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
*/
receive() external payable {
flush();
}
/**
* Execute a token transfer of the full balance from the forwarder token to the parent address
* @param tokenContractAddress the address of the erc20 token contract
*/
function flushTokens(address tokenContractAddress) external onlyParent {
ERC20Interface instance = ERC20Interface(tokenContractAddress);
address forwarderAddress = address(this);
uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
if (forwarderBalance == 0) {
return;
}
TransferHelper.safeTransfer(
tokenContractAddress,
parentAddress,
forwarderBalance
);
}
/**
* Flush the entire balance of the contract to the parent address.
*/
function flush() public {
uint256 value = address(this).balance;
if (value == 0) {
return;
}
(bool success, ) = parentAddress.call{ value: value }('');
require(success, 'Flush failed');
emit ForwarderDeposited(msg.sender, value, msg.data);
}
}
contract ForwarderFactory is CloneFactory {
address public implementationAddress;
event ForwarderCreated(address newForwarderAddress, address parentAddress);
constructor(address _implementationAddress) {
implementationAddress = _implementationAddress;
}
function createForwarder(address parent, bytes32 salt) external {
// include the signers in the salt so any contract deployed to a given address must have the same signers
bytes32 finalSalt = keccak256(abi.encodePacked(parent, salt));
address payable clone = createClone(implementationAddress, finalSalt);
Forwarder(clone).init(parent);
emit ForwarderCreated(clone, parent);
}
} | [{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"bytes","name":"data","type":"bytes"}],"name":"ForwarderDeposited","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"flush","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenContractAddress","type":"address"}],"name":"flushTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_parentAddress","type":"address"}],"name":"init","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"parentAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}] | v0.7.5+commit.eb77ed08 | false | 200 | Default | Apache-2.0 | false | ipfs://934a7b5f246917d20f5e049b9344e4f3d923110c9d150ea2a4118848dd414bc3 | |||
UniswapV2Pair | 0xcd1a9043722eb50c29fcd4d313ea2cbb19b7a27e | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
OwnableDelegateProxy | 0xde8b3b25b9da8690f899fe2a7f31651f3d0bd6e2 | Solidity | contract OwnedUpgradeabilityStorage {
// Current implementation
address internal _implementation;
// Owner of the contract
address private _upgradeabilityOwner;
/**
* @dev Tells the address of the owner
* @return the address of the owner
*/
function upgradeabilityOwner() public view returns (address) {
return _upgradeabilityOwner;
}
/**
* @dev Sets the address of the owner
*/
function setUpgradeabilityOwner(address newUpgradeabilityOwner) internal {
_upgradeabilityOwner = newUpgradeabilityOwner;
}
/**
* @dev Tells the address of the current implementation
* @return address of the current implementation
*/
function implementation() public view returns (address) {
return _implementation;
}
/**
* @dev Tells the proxy type (EIP 897)
* @return Proxy type, 2 for forwarding proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId) {
return 2;
}
}
contract Proxy {
/**
* @dev Tells the address of the implementation where every call will be delegated.
* @return address of the implementation to which it will be delegated
*/
function implementation() public view returns (address);
/**
* @dev Tells the type of proxy (EIP 897)
* @return Type of proxy, 2 for upgradeable proxy
*/
function proxyType() public pure returns (uint256 proxyTypeId);
/**
* @dev Fallback function allowing to perform a delegatecall to the given implementation.
* This function will return whatever the implementation call returns
*/
function () payable public {
address _impl = implementation();
require(_impl != address(0));
assembly {
let ptr := mload(0x40)
calldatacopy(ptr, 0, calldatasize)
let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
let size := returndatasize
returndatacopy(ptr, 0, size)
switch result
case 0 { revert(ptr, size) }
default { return(ptr, size) }
}
}
}
contract OwnedUpgradeabilityProxy is Proxy, OwnedUpgradeabilityStorage {
/**
* @dev Event to show ownership has been transferred
* @param previousOwner representing the address of the previous owner
* @param newOwner representing the address of the new owner
*/
event ProxyOwnershipTransferred(address previousOwner, address newOwner);
/**
* @dev This event will be emitted every time the implementation gets upgraded
* @param implementation representing the address of the upgraded implementation
*/
event Upgraded(address indexed implementation);
/**
* @dev Upgrades the implementation address
* @param implementation representing the address of the new implementation to be set
*/
function _upgradeTo(address implementation) internal {
require(_implementation != implementation);
_implementation = implementation;
emit Upgraded(implementation);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyProxyOwner() {
require(msg.sender == proxyOwner());
_;
}
/**
* @dev Tells the address of the proxy owner
* @return the address of the proxy owner
*/
function proxyOwner() public view returns (address) {
return upgradeabilityOwner();
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferProxyOwnership(address newOwner) public onlyProxyOwner {
require(newOwner != address(0));
emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
setUpgradeabilityOwner(newOwner);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy.
* @param implementation representing the address of the new implementation to be set.
*/
function upgradeTo(address implementation) public onlyProxyOwner {
_upgradeTo(implementation);
}
/**
* @dev Allows the upgradeability owner to upgrade the current implementation of the proxy
* and delegatecall the new implementation for initialization.
* @param implementation representing the address of the new implementation to be set.
* @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
* signature of the implementation to be called with the needed payload
*/
function upgradeToAndCall(address implementation, bytes data) payable public onlyProxyOwner {
upgradeTo(implementation);
require(address(this).delegatecall(data));
}
}
contract OwnableDelegateProxy is OwnedUpgradeabilityProxy {
constructor(address owner, address initialImplementation, bytes calldata)
public
{
setUpgradeabilityOwner(owner);
_upgradeTo(initialImplementation);
require(initialImplementation.delegatecall(calldata));
}
} | [{"constant":true,"inputs":[],"name":"proxyOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"}],"name":"upgradeTo","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"name":"implementation","type":"address"},{"name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"upgradeabilityOwner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferProxyOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"owner","type":"address"},{"name":"initialImplementation","type":"address"},{"name":"calldata","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"previousOwner","type":"address"},{"indexed":false,"name":"newOwner","type":"address"}],"name":"ProxyOwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"implementation","type":"address"}],"name":"Upgraded","type":"event"}] | v0.4.23+commit.124ca40d | true | 200 | 00000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000f9e266af4bca5890e2781812cc6a6e89495a79f200000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000044485cc95500000000000000000000000074451193ccf4d1c9182c973538d9d2339350ee1a000000000000000000000000a5409ec958c83c3f309868babaca7c86dcb077c100000000000000000000000000000000000000000000000000000000 | Default | MIT | false | bzzr://5f26049bbc794226b505f589b2ee1130db54310d79dd8a635c6f6c61e305a777 | ||
UniswapV2Pair | 0x0f9c345fbae8c391fc38e79fc4104a5bfb89277c | Solidity | // File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
// File: contracts/interfaces/IUniswapV2ERC20.sol
pragma solidity >=0.5.0;
interface IUniswapV2ERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}
// File: contracts/libraries/SafeMath.sol
pragma solidity =0.5.16;
// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)
library SafeMath {
function add(uint x, uint y) internal pure returns (uint z) {
require((z = x + y) >= x, 'ds-math-add-overflow');
}
function sub(uint x, uint y) internal pure returns (uint z) {
require((z = x - y) <= x, 'ds-math-sub-underflow');
}
function mul(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');
}
}
// File: contracts/UniswapV2ERC20.sol
pragma solidity =0.5.16;
contract UniswapV2ERC20 is IUniswapV2ERC20 {
using SafeMath for uint;
string public constant name = 'Uniswap V2';
string public constant symbol = 'UNI-V2';
uint8 public constant decimals = 18;
uint public totalSupply;
mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;
bytes32 public DOMAIN_SEPARATOR;
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
mapping(address => uint) public nonces;
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
constructor() public {
uint chainId;
assembly {
chainId := chainid
}
DOMAIN_SEPARATOR = keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes(name)),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function _mint(address to, uint value) internal {
totalSupply = totalSupply.add(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(address(0), to, value);
}
function _burn(address from, uint value) internal {
balanceOf[from] = balanceOf[from].sub(value);
totalSupply = totalSupply.sub(value);
emit Transfer(from, address(0), value);
}
function _approve(address owner, address spender, uint value) private {
allowance[owner][spender] = value;
emit Approval(owner, spender, value);
}
function _transfer(address from, address to, uint value) private {
balanceOf[from] = balanceOf[from].sub(value);
balanceOf[to] = balanceOf[to].add(value);
emit Transfer(from, to, value);
}
function approve(address spender, uint value) external returns (bool) {
_approve(msg.sender, spender, value);
return true;
}
function transfer(address to, uint value) external returns (bool) {
_transfer(msg.sender, to, value);
return true;
}
function transferFrom(address from, address to, uint value) external returns (bool) {
if (allowance[from][msg.sender] != uint(-1)) {
allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);
}
_transfer(from, to, value);
return true;
}
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {
require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');
bytes32 digest = keccak256(
abi.encodePacked(
'\x19\x01',
DOMAIN_SEPARATOR,
keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address recoveredAddress = ecrecover(digest, v, r, s);
require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');
_approve(owner, spender, value);
}
}
// File: contracts/libraries/Math.sol
pragma solidity =0.5.16;
// a library for performing various math operations
library Math {
function min(uint x, uint y) internal pure returns (uint z) {
z = x < y ? x : y;
}
// babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
function sqrt(uint y) internal pure returns (uint z) {
if (y > 3) {
z = y;
uint x = y / 2 + 1;
while (x < z) {
z = x;
x = (y / x + x) / 2;
}
} else if (y != 0) {
z = 1;
}
}
}
// File: contracts/libraries/UQ112x112.sol
pragma solidity =0.5.16;
// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
// range: [0, 2**112 - 1]
// resolution: 1 / 2**112
library UQ112x112 {
uint224 constant Q112 = 2**112;
// encode a uint112 as a UQ112x112
function encode(uint112 y) internal pure returns (uint224 z) {
z = uint224(y) * Q112; // never overflows
}
// divide a UQ112x112 by a uint112, returning a UQ112x112
function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {
z = x / uint224(y);
}
}
// File: contracts/interfaces/IERC20.sol
pragma solidity >=0.5.0;
interface IERC20 {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
}
// File: contracts/interfaces/IUniswapV2Factory.sol
pragma solidity >=0.5.0;
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
// File: contracts/interfaces/IUniswapV2Callee.sol
pragma solidity >=0.5.0;
interface IUniswapV2Callee {
function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}
// File: contracts/UniswapV2Pair.sol
pragma solidity =0.5.16;
contract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {
using SafeMath for uint;
using UQ112x112 for uint224;
uint public constant MINIMUM_LIQUIDITY = 10**3;
bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));
address public factory;
address public token0;
address public token1;
uint112 private reserve0; // uses single storage slot, accessible via getReserves
uint112 private reserve1; // uses single storage slot, accessible via getReserves
uint32 private blockTimestampLast; // uses single storage slot, accessible via getReserves
uint public price0CumulativeLast;
uint public price1CumulativeLast;
uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event
uint private unlocked = 1;
modifier lock() {
require(unlocked == 1, 'UniswapV2: LOCKED');
unlocked = 0;
_;
unlocked = 1;
}
function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {
_reserve0 = reserve0;
_reserve1 = reserve1;
_blockTimestampLast = blockTimestampLast;
}
function _safeTransfer(address token, address to, uint value) private {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');
}
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
constructor() public {
factory = msg.sender;
}
// called once by the factory at time of deployment
function initialize(address _token0, address _token1) external {
require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check
token0 = _token0;
token1 = _token1;
}
// update reserves and, on the first call per block, price accumulators
function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {
require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');
uint32 blockTimestamp = uint32(block.timestamp % 2**32);
uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired
if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {
// * never overflows, and + overflow is desired
price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;
price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;
}
reserve0 = uint112(balance0);
reserve1 = uint112(balance1);
blockTimestampLast = blockTimestamp;
emit Sync(reserve0, reserve1);
}
// if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)
function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {
address feeTo = IUniswapV2Factory(factory).feeTo();
feeOn = feeTo != address(0);
uint _kLast = kLast; // gas savings
if (feeOn) {
if (_kLast != 0) {
uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));
uint rootKLast = Math.sqrt(_kLast);
if (rootK > rootKLast) {
uint numerator = totalSupply.mul(rootK.sub(rootKLast));
uint denominator = rootK.mul(5).add(rootKLast);
uint liquidity = numerator / denominator;
if (liquidity > 0) _mint(feeTo, liquidity);
}
}
} else if (_kLast != 0) {
kLast = 0;
}
}
// this low-level function should be called from a contract which performs important safety checks
function mint(address to) external lock returns (uint liquidity) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
uint balance0 = IERC20(token0).balanceOf(address(this));
uint balance1 = IERC20(token1).balanceOf(address(this));
uint amount0 = balance0.sub(_reserve0);
uint amount1 = balance1.sub(_reserve1);
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
if (_totalSupply == 0) {
liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);
_mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens
} else {
liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);
}
require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');
_mint(to, liquidity);
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Mint(msg.sender, amount0, amount1);
}
// this low-level function should be called from a contract which performs important safety checks
function burn(address to) external lock returns (uint amount0, uint amount1) {
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
uint balance0 = IERC20(_token0).balanceOf(address(this));
uint balance1 = IERC20(_token1).balanceOf(address(this));
uint liquidity = balanceOf[address(this)];
bool feeOn = _mintFee(_reserve0, _reserve1);
uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee
amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution
amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution
require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');
_burn(address(this), liquidity);
_safeTransfer(_token0, to, amount0);
_safeTransfer(_token1, to, amount1);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
_update(balance0, balance1, _reserve0, _reserve1);
if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date
emit Burn(msg.sender, amount0, amount1, to);
}
// this low-level function should be called from a contract which performs important safety checks
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {
require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');
(uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings
require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');
uint balance0;
uint balance1;
{ // scope for _token{0,1}, avoids stack too deep errors
address _token0 = token0;
address _token1 = token1;
require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');
if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens
if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens
if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);
balance0 = IERC20(_token0).balanceOf(address(this));
balance1 = IERC20(_token1).balanceOf(address(this));
}
uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;
uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;
require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');
{ // scope for reserve{0,1}Adjusted, avoids stack too deep errors
uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));
uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));
require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');
}
_update(balance0, balance1, _reserve0, _reserve1);
emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);
}
// force balances to match reserves
function skim(address to) external lock {
address _token0 = token0; // gas savings
address _token1 = token1; // gas savings
_safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));
_safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));
}
// force reserves to match balances
function sync() external lock {
_update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);
}
} | [{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"constant":true,"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sync","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}] | v0.5.16+commit.9c3226ce | true | 999,999 | Default | GNU GPLv3 | false | bzzr://7dca18479e58487606bf70c79e44d8dee62353c9ee6d01f9a9d70885b8765f22 | |||
CollectionContract | 0x4da271f356912afe1bb7e8cd9c84af5b64727833 | Solidity | // File: contracts/CollectionContract.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "./interfaces/ICollectionContractInitializer.sol";
import "./interfaces/ICollectionFactory.sol";
import "./interfaces/IGetRoyalties.sol";
import "./interfaces/IProxyCall.sol";
import "./interfaces/ITokenCreator.sol";
import "./interfaces/ITokenCreatorPaymentAddress.sol";
import "./interfaces/IGetFees.sol";
import "./libraries/AccountMigrationLibrary.sol";
import "./libraries/ProxyCall.sol";
import "./libraries/BytesLibrary.sol";
import "./interfaces/IRoyaltyInfo.sol";
/**
* @title A collection of NFTs.
* @notice All NFTs from this contract are minted by the same creator.
* A 10% royalty to the creator is included which may be split with collaborators.
*/
contract CollectionContract is
ICollectionContractInitializer,
IGetRoyalties,
IGetFees,
IRoyaltyInfo,
ITokenCreator,
ITokenCreatorPaymentAddress,
ERC721BurnableUpgradeable
{
using AccountMigrationLibrary for address;
using AddressUpgradeable for address;
using BytesLibrary for bytes;
using ProxyCall for IProxyCall;
uint256 private constant ROYALTY_IN_BASIS_POINTS = 1000;
uint256 private constant ROYALTY_RATIO = 10;
/**
* @notice The baseURI to use for the tokenURI, if undefined then `ipfs://` is used.
*/
string private baseURI_;
/**
* @dev Stores hashes minted to prevent duplicates.
*/
mapping(string => bool) private cidToMinted;
/**
* @notice The factory which was used to create this collection.
* @dev This is used to read common config.
*/
ICollectionFactory public immutable collectionFactory;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
*/
uint256 public latestTokenId;
/**
* @notice The max tokenId which can be minted, or 0 if there's no limit.
* @dev This value may be set at any time, but once set it cannot be increased.
*/
uint256 public maxTokenId;
/**
* @notice The owner/creator of this NFT collection.
*/
address payable public owner;
/**
* @dev Stores an optional alternate address to receive creator revenue and royalty payments.
* The target address may be a contract which could split or escrow payments.
*/
mapping(uint256 => address payable) private tokenIdToCreatorPaymentAddress;
/**
* @dev Tracks how many tokens have been burned, used to calc the total supply efficiently.
*/
uint256 private burnCounter;
/**
* @dev Stores a CID for each NFT.
*/
mapping(uint256 => string) private _tokenCIDs;
event BaseURIUpdated(string baseURI);
event CreatorMigrated(address indexed originalAddress, address indexed newAddress);
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
event Minted(address indexed creator, uint256 indexed tokenId, string indexed indexedTokenCID, string tokenCID);
event NFTOwnerMigrated(uint256 indexed tokenId, address indexed originalAddress, address indexed newAddress);
event PaymentAddressMigrated(
uint256 indexed tokenId,
address indexed originalAddress,
address indexed newAddress,
address originalPaymentAddress,
address newPaymentAddress
);
event SelfDestruct(address indexed owner);
event TokenCreatorPaymentAddressSet(
address indexed fromPaymentAddress,
address indexed toPaymentAddress,
uint256 indexed tokenId
);
modifier onlyOwner() {
require(msg.sender == owner, "CollectionContract: Caller is not owner");
_;
}
modifier onlyOperator() {
require(collectionFactory.rolesContract().isOperator(msg.sender), "CollectionContract: Caller is not an operator");
_;
}
/**
* @dev The constructor for a proxy can only be used to assign immutable variables.
*/
constructor(address _collectionFactory) {
require(_collectionFactory.isContract(), "CollectionContract: collectionFactory is not a contract");
collectionFactory = ICollectionFactory(_collectionFactory);
}
/**
* @notice Called by the factory on creation.
* @dev This may only be called once.
*/
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external initializer {
require(msg.sender == address(collectionFactory), "CollectionContract: Collection must be created via the factory");
__ERC721_init_unchained(_name, _symbol);
owner = _creator;
}
/**
* @notice Allows the owner to mint an NFT defined by its metadata path.
*/
function mint(string memory tokenCID) public returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
}
/**
* @notice Allows the owner to mint and sets approval for all for the provided operator.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintAndApprove(string memory tokenCID, address operator) public returns (uint256 tokenId) {
tokenId = _mint(tokenCID);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address.
*/
function mintWithCreatorPaymentAddress(string memory tokenCID, address payable tokenCreatorPaymentAddress)
public
returns (uint256 tokenId)
{
require(tokenCreatorPaymentAddress != address(0), "CollectionContract: tokenCreatorPaymentAddress is required");
tokenId = mint(tokenCID);
_setTokenCreatorPaymentAddress(tokenId, tokenCreatorPaymentAddress);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address.
* Also sets approval for all for the provided operator.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintWithCreatorPaymentAddressAndApprove(
string memory tokenCID,
address payable tokenCreatorPaymentAddress,
address operator
) public returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCallData The call details to sent to the factory provided.
*/
function mintWithCreatorPaymentFactory(
string memory tokenCID,
address paymentAddressFactory,
bytes memory paymentAddressCallData
) public returns (uint256 tokenId) {
address payable tokenCreatorPaymentAddress = collectionFactory
.proxyCallContract()
.proxyCallAndReturnContractAddress(paymentAddressFactory, paymentAddressCallData);
tokenId = mintWithCreatorPaymentAddress(tokenCID, tokenCreatorPaymentAddress);
}
/**
* @notice Allows the owner to mint an NFT and have creator revenue/royalties sent to an alternate address
* which is defined by a contract call, typically a proxy contract address representing the payment terms.
* Also sets approval for all for the provided operator.
* @param paymentAddressFactory The contract to call which will return the address to use for payments.
* @param paymentAddressCallData The call details to sent to the factory provided.
* @dev This can be used by creators the first time they mint an NFT to save having to issue a separate approval
* transaction before starting an auction.
*/
function mintWithCreatorPaymentFactoryAndApprove(
string memory tokenCID,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
address operator
) public returns (uint256 tokenId) {
tokenId = mintWithCreatorPaymentFactory(tokenCID, paymentAddressFactory, paymentAddressCallData);
setApprovalForAll(operator, true);
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
*/
function updateMaxTokenId(uint256 _maxTokenId) external onlyOwner {
require(_maxTokenId > 0, "CollectionContract: Max token ID may not be cleared");
require(maxTokenId == 0 || _maxTokenId < maxTokenId, "CollectionContract: Max token ID may not increase");
require(latestTokenId + 1 <= _maxTokenId, "CollectionContract: Max token ID must be greater than last mint");
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
/**
* @notice Allows the owner to assign a baseURI to use for the tokenURI instead of the default `ipfs://`.
*/
function updateBaseURI(string calldata baseURIOverride) external onlyOwner {
baseURI_ = baseURIOverride;
emit BaseURIUpdated(baseURIOverride);
}
/**
* @notice Allows the creator to burn if they currently own the NFT.
*/
function burn(uint256 tokenId) public override onlyOwner {
super.burn(tokenId);
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet.
*/
function selfDestruct() external onlyOwner {
require(totalSupply() == 0, "CollectionContract: Any NFTs minted must be burned first");
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
/**
* @notice Allows an NFT owner or creator and Foundation to work together in order to update the creator
* to a new account and/or transfer NFTs to that account.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
* @dev This will gracefully skip any NFTs that have been burned or transferred.
*/
function adminAccountMigration(
uint256[] calldata ownedTokenIds,
address originalAddress,
address payable newAddress,
bytes calldata signature
) public onlyOperator {
originalAddress.requireAuthorizedAccountMigration(newAddress, signature);
for (uint256 i = 0; i < ownedTokenIds.length; i++) {
uint256 tokenId = ownedTokenIds[i];
// Check that the token exists and still is owned by the originalAddress
// so that frontrunning a burn or transfer will not cause the entire tx to revert
if (_exists(tokenId) && ownerOf(tokenId) == originalAddress) {
_transfer(originalAddress, newAddress, tokenId);
emit NFTOwnerMigrated(tokenId, originalAddress, newAddress);
}
}
if (owner == originalAddress) {
owner = newAddress;
emit CreatorMigrated(originalAddress, newAddress);
}
}
/**
* @notice Allows a split recipient and Foundation to work together in order to update the payment address
* to a new account.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
*/
function adminAccountMigrationForPaymentAddresses(
uint256[] calldata paymentAddressTokenIds,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
uint256 addressLocationInCallData,
address originalAddress,
address payable newAddress,
bytes calldata signature
) public onlyOperator {
originalAddress.requireAuthorizedAccountMigration(newAddress, signature);
_adminAccountRecoveryForPaymentAddresses(
paymentAddressTokenIds,
paymentAddressFactory,
paymentAddressCallData,
addressLocationInCallData,
originalAddress,
newAddress
);
}
function baseURI() external view returns (string memory) {
return _baseURI();
}
/**
* @notice Returns an array of recipient addresses to which royalties for secondary sales should be sent.
* The expected royalty amount is communicated with `getFeeBps`.
*/
function getFeeRecipients(uint256 id) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(id);
}
/**
* @notice Returns an array of royalties to be sent for secondary sales in basis points.
* The expected recipients is communicated with `getFeeRecipients`.
*/
function getFeeBps(
uint256 /* id */
) external pure returns (uint256[] memory feesInBasisPoints) {
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Checks if the creator has already minted a given NFT using this collection contract.
*/
function getHasMintedCID(string memory tokenCID) public view returns (bool) {
return cidToMinted[tokenCID];
}
/**
* @notice Returns an array of royalties to be sent for secondary sales.
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints)
{
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Returns the receiver and the amount to be sent for a secondary sale.
*/
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount)
{
receiver = getTokenCreatorPaymentAddress(_tokenId);
unchecked {
royaltyAmount = _salePrice / ROYALTY_RATIO;
}
}
/**
* @notice Returns the creator for an NFT, which is always the collection owner.
*/
function tokenCreator(
uint256 /* tokenId */
) external view returns (address payable) {
return owner;
}
/**
* @notice Returns the desired payment address to be used for any transfers to the creator.
* @dev The payment address may be assigned for each individual NFT, if not defined the collection owner is returned.
*/
function getTokenCreatorPaymentAddress(uint256 tokenId)
public
view
returns (address payable tokenCreatorPaymentAddress)
{
tokenCreatorPaymentAddress = tokenIdToCreatorPaymentAddress[tokenId];
if (tokenCreatorPaymentAddress == address(0)) {
tokenCreatorPaymentAddress = owner;
}
}
/**
* @notice Count of NFTs tracked by this contract.
* @dev From the ERC-721 enumerable standard.
*/
function totalSupply() public view returns (uint256) {
unchecked {
return latestTokenId - burnCounter;
}
}
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
if (
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(ITokenCreatorPaymentAddress).interfaceId ||
interfaceId == type(IGetFees).interfaceId ||
interfaceId == type(IRoyaltyInfo).interfaceId
) {
return true;
}
return super.supportsInterface(interfaceId);
}
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "CollectionContract: URI query for nonexistent token");
return string(abi.encodePacked(_baseURI(), _tokenCIDs[tokenId]));
}
function _mint(string memory tokenCID) private onlyOwner returns (uint256 tokenId) {
require(bytes(tokenCID).length > 0, "CollectionContract: tokenCID is required");
require(!cidToMinted[tokenCID], "CollectionContract: NFT was already minted");
unchecked {
tokenId = ++latestTokenId;
require(maxTokenId == 0 || tokenId <= maxTokenId, "CollectionContract: Max token count has already been minted");
cidToMinted[tokenCID] = true;
_tokenCIDs[tokenId] = tokenCID;
_safeMint(msg.sender, tokenId, "");
emit Minted(msg.sender, tokenId, tokenCID, tokenCID);
}
}
/**
* @dev Allow setting a different address to send payments to for both primary sale revenue
* and secondary sales royalties.
*/
function _setTokenCreatorPaymentAddress(uint256 tokenId, address payable tokenCreatorPaymentAddress) internal {
emit TokenCreatorPaymentAddressSet(tokenIdToCreatorPaymentAddress[tokenId], tokenCreatorPaymentAddress, tokenId);
tokenIdToCreatorPaymentAddress[tokenId] = tokenCreatorPaymentAddress;
}
function _burn(uint256 tokenId) internal override {
delete cidToMinted[_tokenCIDs[tokenId]];
delete tokenIdToCreatorPaymentAddress[tokenId];
delete _tokenCIDs[tokenId];
unchecked {
burnCounter++;
}
super._burn(tokenId);
}
/**
* @dev Split into a second function to avoid stack too deep errors
*/
function _adminAccountRecoveryForPaymentAddresses(
uint256[] calldata paymentAddressTokenIds,
address paymentAddressFactory,
bytes memory paymentAddressCallData,
uint256 addressLocationInCallData,
address originalAddress,
address payable newAddress
) private {
// Call the factory and get the originalPaymentAddress
address payable originalPaymentAddress = collectionFactory.proxyCallContract().proxyCallAndReturnContractAddress(
paymentAddressFactory,
paymentAddressCallData
);
// Confirm the original address and swap with the new address
paymentAddressCallData.replaceAtIf(addressLocationInCallData, originalAddress, newAddress);
// Call the factory and get the newPaymentAddress
address payable newPaymentAddress = collectionFactory.proxyCallContract().proxyCallAndReturnContractAddress(
paymentAddressFactory,
paymentAddressCallData
);
// For each token, confirm the expected payment address and then update to the new one
for (uint256 i = 0; i < paymentAddressTokenIds.length; i++) {
uint256 tokenId = paymentAddressTokenIds[i];
require(
tokenIdToCreatorPaymentAddress[tokenId] == originalPaymentAddress,
"CollectionContract: Payment address is not the expected value"
);
_setTokenCreatorPaymentAddress(tokenId, newPaymentAddress);
emit PaymentAddressMigrated(tokenId, originalAddress, newAddress, originalPaymentAddress, newPaymentAddress);
}
}
function _baseURI() internal view override returns (string memory) {
if (bytes(baseURI_).length > 0) {
return baseURI_;
}
return "ipfs://";
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be irreversibly burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721Burnable_init_unchained();
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved");
_burn(tokenId);
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: contracts/interfaces/ICollectionContractInitializer.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ICollectionContractInitializer {
function initialize(
address payable _creator,
string memory _name,
string memory _symbol
) external;
}
// File: contracts/interfaces/ICollectionFactory.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "./IRoles.sol";
import "./IProxyCall.sol";
interface ICollectionFactory {
function rolesContract() external returns (IRoles);
function proxyCallContract() external returns (IProxyCall);
}
// File: contracts/interfaces/IGetRoyalties.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface IGetRoyalties {
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints);
}
// File: contracts/interfaces/IProxyCall.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface IProxyCall {
function proxyCallAndReturnAddress(address externalContract, bytes calldata callData)
external
returns (address payable result);
}
// File: contracts/interfaces/ITokenCreator.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ITokenCreator {
function tokenCreator(uint256 tokenId) external view returns (address payable);
}
// File: contracts/interfaces/ITokenCreatorPaymentAddress.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
interface ITokenCreatorPaymentAddress {
function getTokenCreatorPaymentAddress(uint256 tokenId)
external
view
returns (address payable tokenCreatorPaymentAddress);
}
// File: contracts/interfaces/IGetFees.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
function getFeeRecipients(uint256 id) external view returns (address payable[] memory);
function getFeeBps(uint256 id) external view returns (uint256[] memory);
}
// File: contracts/libraries/AccountMigrationLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
/**
* @notice Checks for a valid signature authorizing the migration of an account to a new address.
* @dev This is shared by both the NFT contracts and FNDNFTMarket, and the same signature authorizes both.
*/
library AccountMigrationLibrary {
using ECDSA for bytes;
using SignatureChecker for address;
using Strings for uint256;
// From https://ethereum.stackexchange.com/questions/8346/convert-address-to-string
function _toAsciiString(address x) private pure returns (string memory) {
bytes memory s = new bytes(42);
s[0] = "0";
s[1] = "x";
for (uint256 i = 0; i < 20; i++) {
bytes1 b = bytes1(uint8(uint256(uint160(x)) / (2**(8 * (19 - i)))));
bytes1 hi = bytes1(uint8(b) / 16);
bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi));
s[2 * i + 2] = _char(hi);
s[2 * i + 3] = _char(lo);
}
return string(s);
}
function _char(bytes1 b) private pure returns (bytes1 c) {
if (uint8(b) < 10) return bytes1(uint8(b) + 0x30);
else return bytes1(uint8(b) + 0x57);
}
/**
* @dev Confirms the msg.sender is a Foundation operator and that the signature provided is valid.
* @param signature Message `I authorize Foundation to migrate my account to ${newAccount.address.toLowerCase()}`
* signed by the original account.
*/
function requireAuthorizedAccountMigration(
address originalAddress,
address newAddress,
bytes memory signature
) internal view {
require(originalAddress != newAddress, "AccountMigration: Cannot migrate to the same account");
bytes32 hash = abi
.encodePacked("I authorize Foundation to migrate my account to ", _toAsciiString(newAddress))
.toEthSignedMessageHash();
require(
originalAddress.isValidSignatureNow(hash, signature),
"AccountMigration: Signature must be from the original account"
);
}
}
// File: contracts/libraries/ProxyCall.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "../interfaces/IProxyCall.sol";
/**
* @notice Forwards arbitrary calls to an external contract to be processed.
* @dev This is used so that the from address of the calling contract does not have
* any special permissions (e.g. ERC-20 transfer).
*/
library ProxyCall {
using AddressUpgradeable for address payable;
/**
* @dev Used by other mixins to make external calls through the proxy contract.
* This will fail if the proxyCall address is address(0).
*/
function proxyCallAndReturnContractAddress(
IProxyCall proxyCall,
address externalContract,
bytes memory callData
) internal returns (address payable result) {
result = proxyCall.proxyCallAndReturnAddress(externalContract, callData);
require(result.isContract(), "ProxyCall: address returned is not a contract");
}
}
// File: contracts/libraries/BytesLibrary.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice A library for manipulation of byte arrays.
*/
library BytesLibrary {
/**
* @dev Replace the address at the given location in a byte array if the contents at that location
* match the expected address.
*/
function replaceAtIf(
bytes memory data,
uint256 startLocation,
address expectedAddress,
address newAddress
) internal pure {
bytes memory expectedData = abi.encodePacked(expectedAddress);
bytes memory newData = abi.encodePacked(newAddress);
// An address is 20 bytes long
for (uint256 i = 0; i < 20; i++) {
uint256 dataLocation = startLocation + i;
require(data[dataLocation] == expectedData[i], "Bytes: Data provided does not include the expectedAddress");
data[dataLocation] = newData[i];
}
}
/**
* @dev Checks if the call data starts with the given function signature.
*/
function startsWith(bytes memory callData, bytes4 functionSig) internal pure returns (bool) {
// A signature is 4 bytes long
if (callData.length < 4) {
return false;
}
for (uint256 i = 0; i < 4; i++) {
if (callData[i] != functionSig[i]) {
return false;
}
}
return true;
}
}
// File: contracts/interfaces/IRoyaltyInfo.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/// @notice Called with the sale price to determine how much royalty
// is owed and to whom.
/// @param _tokenId - the NFT asset queried for royalty information
/// @param _salePrice - the sale price of the NFT asset specified by _tokenId
/// @return receiver - address of who should be sent the royalty payment
/// @return royaltyAmount - the royalty payment amount for _salePrice
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__Context_init_unchained();
__ERC165_init_unchained();
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: balance query for the zero address");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: owner query for nonexistent token");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
_safeTransfer(from, to, tokenId, _data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory _data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, _data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits a {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
uint256[44] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
__Context_init_unchained();
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/utils/Initializable.sol)
pragma solidity ^0.8.0;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
* initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() initializer {}
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Modifier to protect an initializer function from being invoked twice.
*/
modifier initializer() {
// If the contract is initializing we ignore whether _initialized is set in order to support multiple
// inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
// contract may have been reentered.
require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");
bool isTopLevelCall = !_initializing;
if (isTopLevelCall) {
_initializing = true;
_initialized = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
}
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} modifier, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
function _isConstructor() private view returns (bool) {
return !AddressUpgradeable.isContract(address(this));
}
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// File: @openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// File: @openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
__ERC165_init_unchained();
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
uint256[50] private __gap;
}
// File: @openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165Upgradeable {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: contracts/interfaces/IRoles.sol
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.0;
/**
* @notice Interface for a contract which implements admin roles.
*/
interface IRoles {
function isAdmin(address account) external view returns (bool);
function isOperator(address account) external view returns (bool);
}
// File: @openzeppelin/contracts/utils/cryptography/ECDSA.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)
pragma solidity ^0.8.0;
import "../Strings.sol";
/**
* @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
*
* These functions can be used to verify that a message was signed by the holder
* of the private keys of a given address.
*/
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return; // no error: do nothing
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
} else if (error == RecoverError.InvalidSignatureV) {
revert("ECDSA: invalid signature 'v' value");
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature` or error string. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*
* Documentation for signature generation:
* - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
* - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
*
* _Available since v4.3._
*/
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
// Check the signature length
// - case 65: r,s,v signature (standard)
// - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else if (signature.length == 64) {
bytes32 r;
bytes32 vs;
// ecrecover takes the signature parameters, and the only way to get them
// currently is to use assembly.
assembly {
r := mload(add(signature, 0x20))
vs := mload(add(signature, 0x40))
}
return tryRecover(hash, r, vs);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
/**
* @dev Returns the address that signed a hashed message (`hash`) with
* `signature`. This address can then be used for verification purposes.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that
* recover to arbitrary addresses for non-hashed data. A safe way to ensure
* this is by receiving a hash of the original message (which may otherwise
* be too long), and then calling {toEthSignedMessageHash} on it.
*/
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
*
* See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address, RecoverError) {
bytes32 s;
uint8 v;
assembly {
s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
v := add(shr(255, vs), 27)
}
return tryRecover(hash, v, r, s);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
*
* _Available since v4.2._
*/
function recover(
bytes32 hash,
bytes32 r,
bytes32 vs
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
/**
* @dev Overload of {ECDSA-tryRecover} that receives the `v`,
* `r` and `s` signature fields separately.
*
* _Available since v4.3._
*/
function tryRecover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address, RecoverError) {
// EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
// unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
// the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
// signatures from current libraries generate a unique signature with an s-value in the lower half order.
//
// If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
// with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
// vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
// these malleable signatures as well.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
if (v != 27 && v != 28) {
return (address(0), RecoverError.InvalidSignatureV);
}
// If the signature is valid (and not malleable), return the signer address
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
/**
* @dev Overload of {ECDSA-recover} that receives the `v`,
* `r` and `s` signature fields separately.
*/
function recover(
bytes32 hash,
uint8 v,
bytes32 r,
bytes32 s
) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
/**
* @dev Returns an Ethereum Signed Message, created from a `hash`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
// 32 is the length in bytes of hash,
// enforced by the type signature above
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
/**
* @dev Returns an Ethereum Signed Message, created from `s`. This
* produces hash corresponding to the one signed with the
* https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
* JSON-RPC method as part of EIP-191.
*
* See {recover}.
*/
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
/**
* @dev Returns an Ethereum Signed Typed Data, created from a
* `domainSeparator` and a `structHash`. This produces hash corresponding
* to the one signed with the
* https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
* JSON-RPC method as part of EIP-712.
*
* See {recover}.
*/
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
}
}
// File: @openzeppelin/contracts/utils/cryptography/SignatureChecker.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/SignatureChecker.sol)
pragma solidity ^0.8.0;
import "./ECDSA.sol";
import "../Address.sol";
import "../../interfaces/IERC1271.sol";
/**
* @dev Signature verification helper: Provide a single mechanism to verify both private-key (EOA) ECDSA signature and
* ERC1271 contract signatures. Using this instead of ECDSA.recover in your contract will make them compatible with
* smart contract wallets such as Argent and Gnosis.
*
* Note: unlike ECDSA signatures, contract signature's are revocable, and the outcome of this function can thus change
* through time. It could return true at block N and false at block N+1 (or the opposite).
*
* _Available since v4.1._
*/
library SignatureChecker {
function isValidSignatureNow(
address signer,
bytes32 hash,
bytes memory signature
) internal view returns (bool) {
(address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);
if (error == ECDSA.RecoverError.NoError && recovered == signer) {
return true;
}
(bool success, bytes memory result) = signer.staticcall(
abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
);
return (success && result.length == 32 && abi.decode(result, (bytes4)) == IERC1271.isValidSignature.selector);
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _HEX_SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
// File: @openzeppelin/contracts/utils/Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value
) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
require(isContract(target), "Address: delegate call to non-contract");
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// File: @openzeppelin/contracts/interfaces/IERC1271.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC1271 standard signature validation method for
* contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
*
* _Available since v4.1._
*/
interface IERC1271 {
/**
* @dev Should return whether the signature provided is valid for the provided data
* @param hash Hash of the data to be signed
* @param signature Signature byte array associated with _data
*/
function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}
| 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ICollectionFactory","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getFeeBps","outputs":[{"internalType":"uint256[]","name":"feesInBasisPoints","type":"uint256[]"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"getFeeRecipients","outputs":[{"internalType":"address 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payable","name":"_creator","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"}],"name":"mint","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address","name":"operator","type":"address"}],"name":"mintAndApprove","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"tokenCID","type":"string"},{"internalType":"address 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| v0.8.11+commit.d7f03943 | true | 1,337 | 0000000000000000000000003b612a5b49e025a6e4ba4ee4fb1ef46d13588059 | Default | false |
Subsets and Splits
Count Solidity 0.8 Contracts
Counts the total number of Solidity smart contracts using Solidity version 0.8.x, providing insight into the adoption of a specific language version.
Distinct Solidity Contracts
Retrieves unique contract names and their source code starting with 'pragma solidity', providing a basic overview of smart contract sources.
Solidity Contracts Source Code
Retrieves unique contract names and their source code that start with 'pragma solidity', providing a basic overview of smart contract sources.
Solidity Contracts Source Code
Retrieves unique contract names and their source code that start with 'pragma solidity', providing a basic overview of smart contract sources.
Solidity Contracts Source Code
Retrieves the names and source code of contracts that use Solidity, providing a basic overview of a subset of contracts in the dataset.
Solidity Contracts Source Code
Retrieves the names and source code of smart contracts that use Solidity, providing a basic overview of a subset of the dataset.