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TokenTracker
Latest 25 from a total of 453 transactions
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Approve | 21023530 | 66 days ago | IN | 0 ETH | 0.00040846 | ||||
Approve | 21023360 | 66 days ago | IN | 0 ETH | 0.00047607 | ||||
Approve | 20900639 | 83 days ago | IN | 0 ETH | 0.00027332 | ||||
Transfer | 19602916 | 264 days ago | IN | 0 ETH | 0.00106625 | ||||
Transfer | 19602834 | 264 days ago | IN | 0 ETH | 0.00258007 | ||||
Approve | 19554260 | 271 days ago | IN | 0 ETH | 0.00103246 | ||||
Approve | 19498863 | 279 days ago | IN | 0 ETH | 0.00104087 | ||||
Approve | 19250727 | 314 days ago | IN | 0 ETH | 0.00086947 | ||||
Approve | 18987904 | 350 days ago | IN | 0 ETH | 0.00103946 | ||||
Approve | 18930260 | 359 days ago | IN | 0 ETH | 0.00143976 | ||||
Approve | 18930244 | 359 days ago | IN | 0 ETH | 0.00132547 | ||||
Approve | 18930232 | 359 days ago | IN | 0 ETH | 0.00137133 | ||||
Approve | 18922488 | 360 days ago | IN | 0 ETH | 0.00116305 | ||||
Approve | 18916798 | 360 days ago | IN | 0 ETH | 0.00077815 | ||||
Approve | 18916740 | 360 days ago | IN | 0 ETH | 0.0007303 | ||||
Approve | 18913597 | 361 days ago | IN | 0 ETH | 0.00056256 | ||||
Approve | 18894933 | 363 days ago | IN | 0 ETH | 0.00081015 | ||||
Transfer | 18868381 | 367 days ago | IN | 0 ETH | 0.00063865 | ||||
Approve | 18860086 | 368 days ago | IN | 0 ETH | 0.00038618 | ||||
Approve | 18860084 | 368 days ago | IN | 0 ETH | 0.00064942 | ||||
Approve | 18835212 | 372 days ago | IN | 0 ETH | 0.00145063 | ||||
Approve | 18835067 | 372 days ago | IN | 0 ETH | 0.00268471 | ||||
Approve | 18824050 | 373 days ago | IN | 0 ETH | 0.00181243 | ||||
Approve | 18824050 | 373 days ago | IN | 0 ETH | 0.00181243 | ||||
Approve | 18780921 | 379 days ago | IN | 0 ETH | 0.00232324 |
Latest 25 internal transactions (View All)
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21023533 | 66 days ago | 0.0009724 ETH | ||||
21023533 | 66 days ago | 0.0009724 ETH | ||||
21023510 | 66 days ago | 0.00149714 ETH | ||||
21023510 | 66 days ago | 0.00149714 ETH | ||||
21023504 | 66 days ago | 0.00162806 ETH | ||||
21023504 | 66 days ago | 0.00162806 ETH | ||||
21023500 | 66 days ago | 0.00173882 ETH | ||||
21023500 | 66 days ago | 0.00173882 ETH | ||||
21023494 | 66 days ago | 0.00186128 ETH | ||||
21023494 | 66 days ago | 0.00186128 ETH | ||||
21023490 | 66 days ago | 0.00133337 ETH | ||||
21023490 | 66 days ago | 0.00133337 ETH | ||||
20573396 | 128 days ago | 0.00185154 ETH | ||||
20573396 | 128 days ago | 0.00185154 ETH | ||||
20242658 | 175 days ago | 0.00170176 ETH | ||||
20242658 | 175 days ago | 0.00170176 ETH | ||||
19602834 | 264 days ago | 0.00318371 ETH | ||||
19602834 | 264 days ago | 0.00318371 ETH | ||||
19498852 | 279 days ago | 0.00155956 ETH | ||||
19498852 | 279 days ago | 0.00155956 ETH | ||||
18987923 | 350 days ago | 0.00551299 ETH | ||||
18987923 | 350 days ago | 0.00551299 ETH | ||||
18987921 | 350 days ago | 0.00260606 ETH | ||||
18987921 | 350 days ago | 0.00260606 ETH | ||||
18942919 | 357 days ago | 0.00305808 ETH |
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Contract Name:
ERC20ByMetadrop
Compiler Version
v0.8.21+commit.d9974bed
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2023-10-29 */ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@B7~&@@@@@@@@@@@@@@@@G!:&@@@@@@@@@@@@@@@&5~.&@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@&P~ P@@@@@@@@@@@@&Y^ G@@@@@@@@@@@@#J: G@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#J: G@@@@@@@@@B7. G@@@@@@@@&G!. G@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@G!. G@@@@@&P~ B@@@@@&Y: G@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@&Y^ ~&&#J: ^#&B7. G@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@#7. &@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@G ^5&@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@J ^5&@&: ~P&@&: .7B@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@J .!G@@@@@@J .?B@@@@@@J :Y#@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@J :J#@@@@@@@@@J ^5&@@@@@@@@@? .~P&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@J ~P&@@@@@@@@@@@@J .7B@@@@@@@@@@@@@? :?#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@B^?B@@@@@@@@@@@@@@@@B~J#@@@@@@@@@@@@@@@@#!5&@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // Telegram: t.me/melioristicsociety // Twitter: twitter.com/meliostar_eth // Website: https://melioristicsociety.com // // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@ @@ // @@ This token was launched using software provided by Metadrop. To learn more or to launch @@ // @@ your own token, visit: https://metadrop.com. See legal info at the end of this file. @@ // @@ @@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // // SPDX-License-Identifier: BUSL-1.1 // Metadrop Contracts (v2.1.0) //// Sources flattened with hardhat v2.17.2 https://hardhat.org // File @openzeppelin/contracts/token/ERC20/[email protected] // 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/[email protected] // 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 @uniswap/v2-periphery/contracts/interfaces/[email protected] 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 @uniswap/v2-periphery/contracts/interfaces/[email protected] pragma solidity >=0.6.2; 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 @openzeppelin/contracts/utils/[email protected] // 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/structs/[email protected] // OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^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. * * ```solidity * 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. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ 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; if (lastIndex != toDeleteIndex) { 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] = valueIndex; // Replace lastValue's index to valueIndex } // 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) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // 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); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // 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)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // 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 in 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)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } } // File @uniswap/v2-core/contracts/interfaces/[email protected] 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/ERC20Factory/ERC20/IERC20ConfigByMetadrop.sol // Metadrop Contracts (v2.1.0) /** * * @title IERC20ByMetadrop.sol. Interface for metadrop ERC20 standard * * @author metadrop * */ pragma solidity 0.8.21; interface IERC20ConfigByMetadrop { struct ERC20Config { bytes baseParameters; bytes supplyParameters; bytes taxParameters; bytes poolParameters; } struct ERC20BaseParameters { string name; string symbol; bool addLiquidityOnCreate; bool usesDRIPool; } struct ERC20SupplyParameters { uint256 maxSupply; uint256 lpSupply; uint256 projectSupply; uint256 maxTokensPerWallet; uint256 maxTokensPerTxn; uint256 lpLockupInDays; uint256 botProtectionDurationInSeconds; address projectSupplyRecipient; address projectLPOwner; bool burnLPTokens; } struct ERC20TaxParameters { uint256 projectBuyTaxBasisPoints; uint256 projectSellTaxBasisPoints; uint256 taxSwapThresholdBasisPoints; uint256 metadropBuyTaxBasisPoints; uint256 metadropSellTaxBasisPoints; uint256 metadropTaxPeriodInDays; address projectTaxRecipient; address metadropTaxRecipient; } struct ERC20PoolParameters { uint256 poolSupply; uint256 poolStartDate; uint256 poolEndDate; uint256 poolVestingInDays; uint256 poolMaxETH; uint256 poolPerAddressMaxETH; uint256 poolMinETH; uint256 poolPerTransactionMinETH; } } // File contracts/Global/IConfigStructures.sol // Metadrop Contracts (v2.1.0) /** * * @title IConfigStructures.sol. Interface for common config structures used accross the platform * * @author metadrop * */ pragma solidity 0.8.21; interface IConfigStructures { enum DropStatus { approved, deployed, cancelled } enum TemplateStatus { live, terminated } // The current status of the mint: // - notEnabled: This type of mint is not part of this drop // - notYetOpen: This type of mint is part of the drop, but it hasn't started yet // - open: it's ready for ya, get in there. // - finished: been and gone. // - unknown: theoretically impossible. enum MintStatus { notEnabled, notYetOpen, open, finished, unknown } struct SubListConfig { uint256 start; uint256 end; uint256 phaseMaxSupply; } struct PrimarySaleModuleInstance { address instanceAddress; string instanceDescription; } struct NFTModuleConfig { uint256 templateId; bytes configData; bytes vestingData; } struct PrimarySaleModuleConfig { uint256 templateId; bytes configData; } struct ProjectBeneficiary { address payable payeeAddress; uint256 payeeShares; } struct VestingConfig { uint256 start; uint256 projectUpFrontShare; uint256 projectVestedShare; uint256 vestingPeriodInDays; uint256 vestingCliff; ProjectBeneficiary[] projectPayees; } struct RoyaltySplitterModuleConfig { uint256 templateId; bytes configData; } struct InLifeModuleConfig { uint256 templateId; bytes configData; } struct InLifeModules { InLifeModuleConfig[] modules; } struct NFTConfig { uint256 supply; string name; string symbol; bytes32 positionProof; bool includePriorPhasesInMintTracking; bool singleMetadataCollection; uint256 reservedAllocation; uint256 assistanceRequestWindowInSeconds; } struct Template { TemplateStatus status; uint16 templateNumber; uint32 loadedDate; address payable templateAddress; string templateDescription; } struct RoyaltyDetails { address newRoyaltyPaymentSplitterInstance; uint96 royaltyFromSalesInBasisPoints; } struct SignedDropMessageDetails { uint256 messageTimeStamp; bytes32 messageHash; bytes messageSignature; } } // File contracts/ERC20Factory/ERC20/IERC20ByMetadrop.sol // Metadrop Contracts (v2.1.0) pragma solidity 0.8.21; /** * @dev Metadrop core ERC-20 contract, interface */ interface IERC20ByMetadrop is IConfigStructures, IERC20, IERC20ConfigByMetadrop, IERC20Metadata { event AutoSwapThresholdUpdated(uint256 oldThreshold, uint256 newThreshold); event ExternalCallError(uint256 identifier); event InitialLiquidityAdded(uint256 tokenA, uint256 tokenB, uint256 lpToken); event LimitsUpdated( uint256 oldMaxTokensPerTransaction, uint256 newMaxTokensPerTransaction, uint256 oldMaxTokensPerWallet, uint256 newMaxTokensPerWallet ); event LiquidityLocked(uint256 lpTokens, uint256 lpLockupInDays); event LiquidityBurned(uint256 lpTokens); event LiquidityPoolCreated(address addedPool); event LiquidityPoolAdded(address addedPool); event LiquidityPoolRemoved(address removedPool); event MetadropTaxBasisPointsChanged( uint256 oldBuyBasisPoints, uint256 newBuyBasisPoints, uint256 oldSellBasisPoints, uint256 newSellBasisPoints ); event ProjectTaxBasisPointsChanged( uint256 oldBuyBasisPoints, uint256 newBuyBasisPoints, uint256 oldSellBasisPoints, uint256 newSellBasisPoints ); event RevenueAutoSwap(); event ProjectTaxRecipientUpdated(address treasury); event UnlimitedAddressAdded(address addedUnlimted); event UnlimitedAddressRemoved(address removedUnlimted); event ValidCallerAdded(bytes32 addedValidCaller); event ValidCallerRemoved(bytes32 removedValidCaller); /** * @dev function {addInitialLiquidity} * * Add initial liquidity to the uniswap pair * * @param vaultFee_ The vault fee in wei. This must match the required fee from the external vault contract. * @param lpLockupInDaysOverride_ The number of days to lock liquidity NOTE you can pass 0 to use the stored value. * This value is an override, and will override a stored value which is LOWER that it. If the value you are passing is * LOWER than the stored value the stored value will not be reduced. * * Example usage 1: When creating the coin the lpLockupInDays is set to 0. This means that on this call the * user can set the lockup to any value they like, as all integer values greater than zero will be used to override * that set in storage. * * Example usage 2: When using a DRI Pool the lockup period is set on this contract and the pool need not know anything * about this setting. The pool can pass back a 0 on this call and know that the existing value stored on this contract * will be used. * @param burnLPTokensOverride_ If the LP tokens should be burned (otherwise they are locked). This is an override field * that can ONLY be used to override a held value of FALSE with a new value of TRUE. * * Example usage 1: When creating the coin the user didn't add liquidity, or specify that the LP tokens were to be burned. * So burnLPTokens is held as FALSE. When they add liquidity they want to lock tokens, so they pass this in as FALSE again, * and it remains FALSE. * * Example usage 2: As above, but when later adding liquidity the user wants to burn the LP. So the stored value is FALSE * and the user passes TRUE into this method. The TRUE overrides the held value of FALSE and the tokens are burned. * * Example uusage 3: The user is using a DRI pool and they have specified on the coin creation that the LP tokens are to * be burned. This contract therefore holds TRUE for burnLPTokens. The DRI pool does not need to know what the user has * selected. It can safely pass back FALSE to this method call and the stored value of TRUE will remain, resulting in the * LP tokens being burned. */ function addInitialLiquidity( uint256 vaultFee_, uint256 lpLockupInDaysOverride_, bool burnLPTokensOverride_ ) external payable; /** * @dev function {isLiquidityPool} * * Return if an address is a liquidity pool * * @param queryAddress_ The address being queried * @return bool The address is / isn't a liquidity pool */ function isLiquidityPool(address queryAddress_) external view returns (bool); /** * @dev function {liquidityPools} * * Returns a list of all liquidity pools * * @return liquidityPools_ a list of all liquidity pools */ function liquidityPools() external view returns (address[] memory liquidityPools_); /** * @dev function {addLiquidityPool} onlyOwner * * Allows the manager to add a liquidity pool to the pool enumerable set * * @param newLiquidityPool_ The address of the new liquidity pool */ function addLiquidityPool(address newLiquidityPool_) external; /** * @dev function {removeLiquidityPool} onlyOwner * * Allows the manager to remove a liquidity pool * * @param removedLiquidityPool_ The address of the old removed liquidity pool */ function removeLiquidityPool(address removedLiquidityPool_) external; /** * @dev function {isUnlimited} * * Return if an address is unlimited (is not subject to per txn and per wallet limits) * * @param queryAddress_ The address being queried * @return bool The address is / isn't unlimited */ function isUnlimited(address queryAddress_) external view returns (bool); /** * @dev function {unlimitedAddresses} * * Returns a list of all unlimited addresses * * @return unlimitedAddresses_ a list of all unlimited addresses */ function unlimitedAddresses() external view returns (address[] memory unlimitedAddresses_); /** * @dev function {addUnlimited} onlyOwner * * Allows the manager to add an unlimited address * * @param newUnlimited_ The address of the new unlimited address */ function addUnlimited(address newUnlimited_) external; /** * @dev function {removeUnlimited} onlyOwner * * Allows the manager to remove an unlimited address * * @param removedUnlimited_ The address of the old removed unlimited address */ function removeUnlimited(address removedUnlimited_) external; /** * @dev function {isValidCaller} * * Return if an address is a valid caller * * @param queryHash_ The code hash being queried * @return bool The address is / isn't a valid caller */ function isValidCaller(bytes32 queryHash_) external view returns (bool); /** * @dev function {validCallers} * * Returns a list of all valid caller code hashes * * @return validCallerHashes_ a list of all valid caller code hashes */ function validCallers() external view returns (bytes32[] memory validCallerHashes_); /** * @dev function {addValidCaller} onlyOwner * * Allows the owner to add the hash of a valid caller * * @param newValidCallerHash_ The hash of the new valid caller */ function addValidCaller(bytes32 newValidCallerHash_) external; /** * @dev function {removeValidCaller} onlyOwner * * Allows the owner to remove a valid caller * * @param removedValidCallerHash_ The hash of the old removed valid caller */ function removeValidCaller(bytes32 removedValidCallerHash_) external; /** * @dev function {setProjectTaxRecipient} onlyOwner * * Allows the manager to set the project tax recipient address * * @param projectTaxRecipient_ New recipient address */ function setProjectTaxRecipient(address projectTaxRecipient_) external; /** * @dev function {setSwapThresholdBasisPoints} onlyOwner * * Allows the manager to set the autoswap threshold * * @param swapThresholdBasisPoints_ New swap threshold in basis points */ function setSwapThresholdBasisPoints( uint16 swapThresholdBasisPoints_ ) external; /** * @dev function {setProjectTaxRates} onlyOwner * * Change the tax rates, subject to only ever decreasing * * @param newProjectBuyTaxBasisPoints_ The new buy tax rate * @param newProjectSellTaxBasisPoints_ The new sell tax rate */ function setProjectTaxRates( uint16 newProjectBuyTaxBasisPoints_, uint16 newProjectSellTaxBasisPoints_ ) external; /** * @dev function {setLimits} onlyOwner * * Change the limits on transactions and holdings * * @param newMaxTokensPerTransaction_ The new per txn limit * @param newMaxTokensPerWallet_ The new tokens per wallet limit */ function setLimits( uint256 newMaxTokensPerTransaction_, uint256 newMaxTokensPerWallet_ ) external; /** * @dev function {limitsEnforced} * * Return if limits are enforced on this contract * * @return bool : they are / aren't */ function limitsEnforced() external view returns (bool); /** * @dev getMetadropBuyTaxBasisPoints * * Return the metadrop buy tax basis points given the timed expiry */ function getMetadropBuyTaxBasisPoints() external view returns (uint256); /** * @dev getMetadropSellTaxBasisPoints * * Return the metadrop sell tax basis points given the timed expiry */ function getMetadropSellTaxBasisPoints() external view returns (uint256); /** * @dev totalBuyTaxBasisPoints * * Provide easy to view tax total: */ function totalBuyTaxBasisPoints() external view returns (uint256); /** * @dev totalSellTaxBasisPoints * * Provide easy to view tax total: */ function totalSellTaxBasisPoints() external view returns (uint256); /** * @dev distributeTaxTokens * * Allows the distribution of tax tokens to the designated recipient(s) * * As part of standard processing the tax token balance being above the threshold * will trigger an autoswap to ETH and distribution of this ETH to the designated * recipients. This is automatic and there is no need for user involvement. * * As part of this swap there are a number of calculations performed, particularly * if the tax balance is above MAX_SWAP_THRESHOLD_MULTIPLE. * * Testing indicates that these calculations are safe. But given the data / code * interactions it remains possible that some edge case set of scenarios may cause * an issue with these calculations. * * This method is therefore provided as a 'fallback' option to safely distribute * accumulated taxes from the contract, with a direct transfer of the ERC20 tokens * themselves. */ function distributeTaxTokens() external; /** * @dev function {withdrawETH} onlyOwner * * A withdraw function to allow ETH to be withdrawn by the manager * * This contract should never hold ETH. The only envisaged scenario where * it might hold ETH is a failed autoswap where the uniswap swap has completed, * the recipient of ETH reverts, the contract then wraps to WETH and the * wrap to WETH fails. * * This feels unlikely. But, for safety, we include this method. * * @param amount_ The amount to withdraw */ function withdrawETH(uint256 amount_) external; /** * @dev function {withdrawERC20} onlyOwner * * A withdraw function to allow ERC20s (except address(this)) to be withdrawn. * * This contract should never hold ERC20s other than tax tokens. The only envisaged * scenario where it might hold an ERC20 is a failed autoswap where the uniswap swap * has completed, the recipient of ETH reverts, the contract then wraps to WETH, the * wrap to WETH succeeds, BUT then the transfer of WETH fails. * * This feels even less likely than the scenario where ETH is held on the contract. * But, for safety, we include this method. * * @param token_ The ERC20 contract * @param amount_ The amount to withdraw */ function withdrawERC20(address token_, uint256 amount_) external; /** * @dev Destroys a `value` amount of tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 value) external; /** * @dev Destroys a `value` amount of 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 * `value`. */ function burnFrom(address account, uint256 value) external; } // File contracts/Global/IErrors.sol // Metadrop Contracts (v2.1.0) /** * * @title IErrors.sol. Interface for error definitions used across the platform * * @author metadrop * */ pragma solidity 0.8.21; interface IErrors { enum BondingCurveErrorType { OK, // No error INVALID_NUMITEMS, // The numItem value is 0 SPOT_PRICE_OVERFLOW // The updated spot price doesn't fit into 128 bits } error AdapterParamsMustBeEmpty(); // The adapter parameters on this LZ call must be empty. error AdditionToPoolIsBelowPerTransactionMinimum(); // The contribution amount is less than the minimum. error AdditionToPoolWouldExceedPoolCap(); // This addition to the pool would exceed the pool cap. error AdditionToPoolWouldExceedPerAddressCap(); // This addition to the pool would exceed the per address cap. error AddressAlreadySet(); // The address being set can only be set once, and is already non-0. error AllowanceDecreasedBelowZero(); // You cannot decrease the allowance below zero. error AlreadyInitialised(); // The contract is already initialised: it cannot be initialised twice! error ApprovalCallerNotOwnerNorApproved(); // The caller must own the token or be an approved operator. error ApproveFromTheZeroAddress(); // Approval cannot be called from the zero address (indeed, how have you??). error ApproveToTheZeroAddress(); // Approval cannot be given to the zero address. error ApprovalQueryForNonexistentToken(); // The token does not exist. error AuctionStatusIsNotEnded(); // Throw if the action required the auction to be closed, and it isn't. error AuctionStatusIsNotOpen(); // Throw if the action requires the auction to be open, and it isn't. error AuxCallFailed( address[] modules, uint256 value, bytes data, uint256 txGas ); // An auxilliary call from the drop factory failed. error BalanceMismatch(); // An error when comparing balance amounts. error BalanceQueryForZeroAddress(); // Cannot query the balance for the zero address. error BidMustBeBelowTheFloorWhenReducingQuantity(); // Only bids that are below the floor can reduce the quantity of the bid. error BidMustBeBelowTheFloorForRefundDuringAuction(); // Only bids that are below the floor can be refunded during the auction. error BondingCurveError(BondingCurveErrorType error); // An error of the type specified has occured in bonding curve processing. error BurnExceedsBalance(); // The amount you have selected to burn exceeds the addresses balance. error BurnFromTheZeroAddress(); // Tokens cannot be burned from the zero address. (Also, how have you called this!?!) error CallerIsNotDepositBoxOwner(); // The caller is not the owner of the deposit box. error CallerIsNotFactory(); // The caller of this function must match the factory address in storage. error CallerIsNotFactoryOrProjectOwner(); // The caller of this function must match the factory address OR project owner address. error CallerIsNotFactoryProjectOwnerOrPool(); // The caller of this function must match the factory address, project owner or pool address. error CallerIsNotTheOwner(); // The caller is not the owner of this contract. error CallerIsNotTheManager(); // The caller is not the manager of this contract. error CallerMustBeLzApp(); // The caller must be an LZ application. error CallerIsNotPlatformAdmin(address caller); // The caller of this function must be part of the platformAdmin group. error CallerIsNotSuperAdmin(address caller); // The caller of this function must match the superAdmin address in storage. error CannotAddLiquidityOnCreateAndUseDRIPool(); // Cannot use both liquidity added on create and a DRIPool in the same token. error CannotSetNewOwnerToTheZeroAddress(); // You can't set the owner of this contract to the zero address (address(0)). error CannotSetToZeroAddress(); // The corresponding address cannot be set to the zero address (address(0)). error CannotSetNewManagerToTheZeroAddress(); // Cannot transfer the manager to the zero address (address(0)). error CannotWithdrawThisToken(); // Cannot withdraw the specified token. error CanOnlyReduce(); // The given operation can only reduce the value specified. error CollectionAlreadyRevealed(); // The collection is already revealed; you cannot call reveal again. error ContractIsDecommissioned(); // This contract is decommissioned! error ContractIsPaused(); // The call requires the contract to be unpaused, and it is paused. error ContractIsNotPaused(); // The call required the contract to be paused, and it is NOT paused. error DecreasedAllowanceBelowZero(); // The request would decrease the allowance below zero, and that is not allowed. error DestinationIsNotTrustedSource(); // The destination that is being called through LZ has not been set as trusted. error DeployerOnly(); // This method can only be called by the deployer address. error DeploymentError(); // Error on deployment. error DepositBoxIsNotOpen(); // This action cannot complete as the deposit box is not open. error DriPoolAddressCannotBeAddressZero(); // The Dri Pool address cannot be the zero address. error GasLimitIsTooLow(); // The gas limit for the LayerZero call is too low. error IncorrectConfirmationValue(); // You need to enter the right confirmation value to call this funtion (usually 69420). error IncorrectPayment(); // The function call did not include passing the correct payment. error InitialLiquidityAlreadyAdded(); // Initial liquidity has already been added. You can't do it again. error InitialLiquidityNotYetAdded(); // Initial liquidity needs to have been added for this to succedd. error InsufficientAllowance(); // There is not a high enough allowance for this operation. error InvalidAdapterParams(); // The current adapter params for LayerZero on this contract won't work :(. error InvalidAddress(); // An address being processed in the function is not valid. error InvalidEndpointCaller(); // The calling address is not a valid LZ endpoint. The LZ endpoint was set at contract creation // and cannot be altered after. Check the address LZ endpoint address on the contract. error InvalidMinGas(); // The minimum gas setting for LZ in invalid. error InvalidOracleSignature(); // The signature provided with the contract call is not valid, either in format or signer. error InvalidPayload(); // The LZ payload is invalid error InvalidReceiver(); // The address used as a target for funds is not valid. error InvalidSourceSendingContract(); // The LZ message is being related from a source contract on another chain that is NOT trusted. error InvalidTotalShares(); // Total shares must equal 100 percent in basis points. error LimitsCanOnlyBeRaised(); // Limits are UP ONLY. error ListLengthMismatch(); // Two or more lists were compared and they did not match length. error LiquidityPoolMustBeAContractAddress(); // Cannot add a non-contract as a liquidity pool. error LiquidityPoolCannotBeAddressZero(); // Cannot add a liquidity pool from the zero address. error LPLockUpMustFitUint88(); // LP lockup is held in a uint88, so must fit. error NoTrustedPathRecord(); // LZ needs a trusted path record for this to work. What's that, you ask? error MachineAddressCannotBeAddressZero(); // Cannot set the machine address to the zero address. error ManagerUnauthorizedAccount(); // The caller is not the pending manager. error MaxBidQuantityIs255(); // Validation: as we use a uint8 array to track bid positions the max bid quantity is 255. error MaxPublicMintAllowanceExceeded( uint256 requested, uint256 alreadyMinted, uint256 maxAllowance ); // The calling address has requested a quantity that would exceed the max allowance. error MaxSupplyTooHigh(); // Max supply must fit in a uint128. error MaxTokensPerWalletExceeded(); // The transfer would exceed the max tokens per wallet limit. error MaxTokensPerTxnExceeded(); // The transfer would exceed the max tokens per transaction limit. error MetadataIsLocked(); // The metadata on this contract is locked; it cannot be altered! error MetadropFactoryOnlyOncePerReveal(); // This function can only be called (a) by the factory and, (b) just one time! error MetadropModulesOnly(); // Can only be called from a metadrop contract. error MetadropOracleCannotBeAddressZero(); // The metadrop Oracle cannot be the zero address (address(0)). error MinGasLimitNotSet(); // The minimum gas limit for LayerZero has not been set. error MintERC2309QuantityExceedsLimit(); // The `quantity` minted with ERC2309 exceeds the safety limit. error MintingIsClosedForever(); // Minting is, as the error suggests, so over (and locked forever). error MintToZeroAddress(); // Cannot mint to the zero address. error MintZeroQuantity(); // The quantity of tokens minted must be more than zero. error NewBuyTaxBasisPointsExceedsMaximum(); // Project owner trying to set the tax rate too high. error NewSellTaxBasisPointsExceedsMaximum(); // Project owner trying to set the tax rate too high. error NoETHForLiquidityPair(); // No ETH has been provided for the liquidity pair. error TaxPeriodStillInForce(); // The minimum tax period has not yet expired. error NoPaymentDue(); // No payment is due for this address. error NoRefundForCaller(); // Error thrown when the calling address has no refund owed. error NoStoredMessage(); // There is no stored message matching the passed parameters. error NothingToClaim(); // The calling address has nothing to claim. error NoTokenForLiquidityPair(); // There is no token to add to the LP. error OperationDidNotSucceed(); // The operation failed (vague much?). error OracleSignatureHasExpired(); // A signature has been provided but it is too old. error OwnableUnauthorizedAccount(); // The caller is not the pending owner. error OwnershipNotInitializedForExtraData(); // The `extraData` cannot be set on an uninitialized ownership slot. error OwnerQueryForNonexistentToken(); // The token does not exist. error ParametersDoNotMatchSignedMessage(); // The parameters passed with the signed message do not match the message itself. error ParamTooLargeStartDate(); // The passed parameter exceeds the var type max. error ParamTooLargeEndDate(); // The passed parameter exceeds the var type max. error ParamTooLargeMinETH(); // The passed parameter exceeds the var type max. error ParamTooLargePerAddressMax(); // The passed parameter exceeds the var type max. error ParamTooLargeVestingDays(); // The passed parameter exceeds the var type max. error ParamTooLargePoolSupply(); // The passed parameter exceeds the var type max. error ParamTooLargePoolPerTxnMinETH(); // The passed parameter exceeds the var type max. error PassedConfigDoesNotMatchApproved(); // The config provided on the call does not match the approved config. error PauseCutOffHasPassed(); // The time period in which we can pause has passed; this contract can no longer be paused. error PaymentMustCoverPerMintFee(); // The payment passed must at least cover the per mint fee for the quantity requested. error PermitDidNotSucceed(); // The safeERC20 permit failed. error PlatformAdminCannotBeAddressZero(); // We cannot use the zero address (address(0)) as a platformAdmin. error PlatformTreasuryCannotBeAddressZero(); // The treasury address cannot be set to the zero address. error PoolIsAboveMinimum(); // You required the pool to be below the minimum, and it is not error PoolIsBelowMinimum(); // You required the pool to be above the minimum, and it is not error PoolPhaseIsClosed(); // The block.timestamp is either before the pool is open or after it is closed. error PoolPhaseIsNotAfter(); // The block.timestamp is either before or during the pool open phase. error PoolVestingNotYetComplete(); // Tokens in the pool are not yet vested. error ProjectOwnerCannotBeAddressZero(); // The project owner has to be a non zero address. error ProofInvalid(); // The provided proof is not valid with the provided arguments. error QuantityExceedsRemainingCollectionSupply(); // The requested quantity would breach the collection supply. error QuantityExceedsRemainingPhaseSupply(); // The requested quantity would breach the phase supply. error QuantityExceedsMaxPossibleCollectionSupply(); // The requested quantity would breach the maximum trackable supply error ReferralIdAlreadyUsed(); // This referral ID has already been used; they are one use only. error RequestingMoreThanAvailableBalance(); // The request exceeds the available balance. error RequestingMoreThanRemainingAllocation( uint256 previouslyMinted, uint256 requested, uint256 remainingAllocation ); // Number of tokens requested for this mint exceeds the remaining allocation (taking the // original allocation from the list and deducting minted tokens). error RoyaltyFeeWillExceedSalePrice(); // The ERC2981 royalty specified will exceed the sale price. error ShareTotalCannotBeZero(); // The total of all the shares cannot be nothing. error SliceOutOfBounds(); // The bytes slice operation was out of bounds. error SliceOverflow(); // The bytes slice operation overlowed. error SuperAdminCannotBeAddressZero(); // The superAdmin cannot be the sero address (address(0)). error SupplyTotalMismatch(); // The sum of the team supply and lp supply does not match. error SupportWindowIsNotOpen(); // The project owner has not requested support within the support request expiry window. error TaxFreeAddressCannotBeAddressZero(); // A tax free address cannot be address(0) error TemplateCannotBeAddressZero(); // The address for a template cannot be address zero (address(0)). error TemplateNotFound(); // There is no template that matches the passed template Id. error ThisMintIsClosed(); // It's over (well, this mint is, anyway). error TotalSharesMustMatchDenominator(); // The total of all shares must equal the denominator value. error TransferAmountExceedsBalance(); // The transfer amount exceeds the accounts available balance. error TransferCallerNotOwnerNorApproved(); // The caller must own the token or be an approved operator. error TransferFailed(); // The transfer has failed. error TransferFromIncorrectOwner(); // The token must be owned by `from`. error TransferToNonERC721ReceiverImplementer(); // Cannot safely transfer to a contract that does not implement the ERC721Receiver interface. error TransferFromZeroAddress(); // Cannot transfer from the zero address. Indeed, this surely is impossible, and likely a waste to check?? error TransferToZeroAddress(); // Cannot transfer to the zero address. error UnrecognisedVRFMode(); // Currently supported VRF modes are 0: chainlink and 1: arrng error URIQueryForNonexistentToken(); // The token does not exist. error ValueExceedsMaximum(); // The value sent exceeds the maximum allowed (super useful explanation huh?). error VRFCoordinatorCannotBeAddressZero(); // The VRF coordinator cannot be the zero address (address(0)). } // File contracts/ERC20Factory/ERC20Factory/IERC20FactoryByMetadrop.sol // Metadrop Contracts (v2.1.0) pragma solidity 0.8.21; /** * @dev Metadrop ERC-20 factory, interface */ interface IERC20FactoryByMetadrop is IConfigStructures, IErrors, IERC20ConfigByMetadrop { event DriPoolAddressUpdated(address oldAddress, address newAddress); event ERC20Created( string metaId, address indexed deployer, address contractInstance, address driPoolInstance, string symbol, string name, bytes constructorArgs ); event MachineAddressUpdated(address oldAddress, address newAddress); event OracleAddressUpdated(address oldAddress, address newAddress); event MessageValidityInSecondsUpdated( uint256 oldMessageValidityInSeconds, uint256 newMessageValidityInSeconds ); event PlatformTreasuryUpdated(address oldAddress, address newAddress); /** * @dev function {initialiseMachineAddress} * * Initialise the machine template address. This needs to be separate from * the constructor as the machine needs the factory address on its constructor. * * This must ALWAYS be called as part of deployment. * * @param machineTemplate_ the machine address */ function initialiseMachineAddress(address machineTemplate_) external; /** * @dev function {decommissionFactory} onlySuperAdmin * * Make this factory unusable for creating new ERC20s, forever * */ function decommissionFactory() external; /** * @dev function {setMetadropOracleAddress} onlyPlatformAdmin * * Set the metadrop trusted oracle address * * @param metadropOracleAddress_ Trusted metadrop oracle address */ function setMetadropOracleAddress(address metadropOracleAddress_) external; /** * @dev function {setMessageValidityInSeconds} onlyPlatformAdmin * * Set the validity period of signed messages * * @param messageValidityInSeconds_ Validity period in seconds for messages signed by the trusted oracle */ function setMessageValidityInSeconds( uint256 messageValidityInSeconds_ ) external; /** * @dev function {setPlatformTreasury} onlySuperAdmin * * Set the address that platform fees will be paid to / can be withdrawn to. * Note that this is restricted to the highest authority level, the super * admin. Platform admins can trigger a withdrawal to the treasury, but only * the default admin can set or alter the treasury address. It is recommended * that the default admin is highly secured and restrited e.g. a multi-sig. * * @param platformTreasury_ New treasury address */ function setPlatformTreasury(address platformTreasury_) external; /** * @dev function {setMachineAddress} onlyPlatformAdmin * * Set a new machine template address * * @param newMachineAddress_ the new machine address */ function setMachineAddress(address newMachineAddress_) external; /** * @dev function {setDriPoolAddress} onlyPlatformAdmin * * Set a new launch pool template address * * @param newDriPoolAddress_ the new launch pool address */ function setDriPoolAddress(address newDriPoolAddress_) external; /** * @dev function {withdrawETH} onlyPlatformAdmin * * A withdraw function to allow ETH to be withdrawn to the treasury * * @param amount_ The amount to withdraw */ function withdrawETH(uint256 amount_) external; /** * @dev function {withdrawERC20} onlyPlatformAdmin * * A withdraw function to allow ERC20s to be withdrawn to the treasury * * @param token_ The contract address of the token being withdrawn * @param amount_ The amount to withdraw */ function withdrawERC20(IERC20 token_, uint256 amount_) external; /** * @dev function {createERC20} * * Create an ERC-20 * * @param metaId_ The drop Id being approved * @param salt_ Salt for create2 * @param erc20Config_ ERC20 configuration * @param signedMessage_ The signed message object * @param vaultFee_ The fee for the token vault * @param deploymentFee_ The fee for deployment, if any * @return deployedAddress_ The deployed ERC20 contract address */ function createERC20( string calldata metaId_, bytes32 salt_, ERC20Config calldata erc20Config_, SignedDropMessageDetails calldata signedMessage_, uint256 vaultFee_, uint256 deploymentFee_ ) external payable returns (address deployedAddress_); /** * @dev function {createConfigHash} * * Create the config hash * * @param metaId_ The drop Id being approved * @param salt_ Salt for create2 * @param erc20Config_ ERC20 configuration * @param messageTimeStamp_ When the message for this config hash was signed * @param vaultFee_ The fee for the token vault * @param deploymentFee_ The fee for deployment, if any * @param deployer_ Address performing the deployment * @return configHash_ The bytes32 config hash */ function createConfigHash( string calldata metaId_, bytes32 salt_, ERC20Config calldata erc20Config_, uint256 messageTimeStamp_, uint256 vaultFee_, uint256 deploymentFee_, address deployer_ ) external pure returns (bytes32 configHash_); } // File contracts/Global/Revert.sol // Metadrop Contracts (v2.1.0) /** * * @title Revert.sol. For efficient reverts * * @author metadrop * */ pragma solidity 0.8.21; abstract contract Revert { /** * @dev For more efficient reverts. */ function _revert(bytes4 errorSelector) internal pure { assembly { mstore(0x00, errorSelector) revert(0x00, 0x04) } } } // File contracts/Global/OZ/Ownable.sol // Metadrop Contracts (v2.1.0) // Metadrop based on OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol) pragma solidity 0.8.21; /** * @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 IErrors, Revert, 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 { if (owner() != _msgSender()) { _revert(CallerIsNotTheOwner.selector); } } /** * @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(CannotSetNewOwnerToTheZeroAddress.selector); } _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/Global/OZ/Ownable2Step.sol // Metadrop Contracts (v2.1.0) // Metadrop based on OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol) pragma solidity 0.8.21; /** * @dev Contract module which provides access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * The initial owner is specified at deployment time in the constructor for `Ownable`. This * can later be changed with {transferOwnership} and {acceptOwnership}. * * This module is used through inheritance. It will make available all functions * from parent (Ownable). */ abstract contract Ownable2Step is Ownable { address private _pendingOwner; event OwnershipTransferStarted( address indexed previousOwner, address indexed newOwner ); /** * @dev Returns the address of the pending owner. */ function pendingOwner() public view virtual returns (address) { return _pendingOwner; } /** * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. * Can only be called by the current owner. */ function transferOwnership( address newOwner ) public virtual override onlyOwner { _pendingOwner = newOwner; emit OwnershipTransferStarted(owner(), newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual override { delete _pendingOwner; super._transferOwnership(newOwner); } /** * @dev The new owner accepts the ownership transfer. */ function acceptOwnership() public virtual { address sender = _msgSender(); if (pendingOwner() != sender) { _revert(OwnableUnauthorizedAccount.selector); } _transferOwnership(sender); } } // File @openzeppelin/contracts/token/ERC20/extensions/[email protected] // 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/[email protected] // 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 contracts/Global/OZ/SafeERC20.sol // Metadrop Contracts (v2.1.0) // Metadrop based on OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity 0.8.21; /** * @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, 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); forceApprove(token, 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); if (oldAllowance < value) { revert IErrors.DecreasedAllowanceBelowZero(); } forceApprove(token, 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.encodeCall(token.approve, (spender, value)); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeCall(token.approve, (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); if (nonceAfter != (nonceBefore + 1)) { revert IErrors.PermitDidNotSucceed(); } } /** * @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, "call fail"); if ((returndata.length != 0) && !abi.decode(returndata, (bool))) { revert IErrors.OperationDidNotSucceed(); } } /** * @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(token).code.length > 0; } } // File contracts/ThirdParty/Unicrypt/IUniswapV2Locker.sol // Interface definition for UniswapV2Locker.sol pragma solidity 0.8.21; interface IERCBurn { function burn(uint256 _amount) external; function approve(address spender, uint256 amount) external returns (bool); function allowance(address owner, address spender) external returns (uint256); function balanceOf(address account) external view returns (uint256); } interface IMigrator { function migrate( address lpToken, uint256 amount, uint256 unlockDate, address owner ) external returns (bool); } interface IUniswapV2Locker { struct UserInfo { EnumerableSet.AddressSet lockedTokens; // records all tokens the user has locked mapping(address => uint256[]) locksForToken; // map erc20 address to lock id for that token } struct TokenLock { uint256 lockDate; // the date the token was locked uint256 amount; // the amount of tokens still locked (initialAmount minus withdrawls) uint256 initialAmount; // the initial lock amount uint256 unlockDate; // the date the token can be withdrawn uint256 lockID; // lockID nonce per uni pair address owner; } struct FeeStruct { uint256 ethFee; // Small eth fee to prevent spam on the platform IERCBurn secondaryFeeToken; // UNCX or UNCL uint256 secondaryTokenFee; // optional, UNCX or UNCL uint256 secondaryTokenDiscount; // discount on liquidity fee for burning secondaryToken uint256 liquidityFee; // fee on univ2 liquidity tokens uint256 referralPercent; // fee for referrals IERCBurn referralToken; // token the refferer must hold to qualify as a referrer uint256 referralHold; // balance the referrer must hold to qualify as a referrer uint256 referralDiscount; // discount on flatrate fees for using a valid referral address } function setDev(address payable _devaddr) external; /** * @notice set the migrator contract which allows locked lp tokens to be migrated to uniswap v3 */ function setMigrator(IMigrator _migrator) external; function setSecondaryFeeToken(address _secondaryFeeToken) external; /** * @notice referrers need to hold the specified token and hold amount to be elegible for referral fees */ function setReferralTokenAndHold( IERCBurn _referralToken, uint256 _hold ) external; function setFees( uint256 _referralPercent, uint256 _referralDiscount, uint256 _ethFee, uint256 _secondaryTokenFee, uint256 _secondaryTokenDiscount, uint256 _liquidityFee ) external; /** * @notice whitelisted accounts dont pay flatrate fees on locking */ function whitelistFeeAccount(address _user, bool _add) external; /** * @notice Creates a new lock * @param _lpToken the univ2 token address * @param _amount amount of LP tokens to lock * @param _unlock_date the unix timestamp (in seconds) until unlock * @param _referral the referrer address if any or address(0) for none * @param _fee_in_eth fees can be paid in eth or in a secondary token such as UNCX with a discount on univ2 tokens * @param _withdrawer the user who can withdraw liquidity once the lock expires. */ function lockLPToken( address _lpToken, uint256 _amount, uint256 _unlock_date, address payable _referral, bool _fee_in_eth, address payable _withdrawer ) external payable; /** * @notice extend a lock with a new unlock date, _index and _lockID ensure the correct lock is changed * this prevents errors when a user performs multiple tx per block possibly with varying gas prices */ function relock( address _lpToken, uint256 _index, uint256 _lockID, uint256 _unlock_date ) external; /** * @notice withdraw a specified amount from a lock. _index and _lockID ensure the correct lock is changed * this prevents errors when a user performs multiple tx per block possibly with varying gas prices */ function withdraw( address _lpToken, uint256 _index, uint256 _lockID, uint256 _amount ) external; /** * @notice increase the amount of tokens per a specific lock, this is preferable to creating a new lock, less fees, and faster loading on our live block explorer */ function incrementLock( address _lpToken, uint256 _index, uint256 _lockID, uint256 _amount ) external; /** * @notice split a lock into two seperate locks, useful when a lock is about to expire and youd like to relock a portion * and withdraw a smaller portion */ function splitLock( address _lpToken, uint256 _index, uint256 _lockID, uint256 _amount ) external payable; /** * @notice transfer a lock to a new owner, e.g. presale project -> project owner */ function transferLockOwnership( address _lpToken, uint256 _index, uint256 _lockID, address payable _newOwner ) external; /** * @notice migrates liquidity to uniswap v3 */ function migrate( address _lpToken, uint256 _index, uint256 _lockID, uint256 _amount ) external; function getNumLocksForToken( address _lpToken ) external view returns (uint256); function getNumLockedTokens() external view returns (uint256); function getLockedTokenAtIndex( uint256 _index ) external view returns (address); // user functions function getUserNumLockedTokens( address _user ) external view returns (uint256); function getUserLockedTokenAtIndex( address _user, uint256 _index ) external view returns (address); function getUserNumLocksForToken( address _user, address _lpToken ) external view returns (uint256); function getUserLockForTokenAtIndex( address _user, address _lpToken, uint256 _index ) external view returns (uint256, uint256, uint256, uint256, uint256, address); // whitelist function getWhitelistedUsersLength() external view returns (uint256); function getWhitelistedUserAtIndex( uint256 _index ) external view returns (address); function getUserWhitelistStatus(address _user) external view returns (bool); } // File contracts/ThirdParty/WETH/IWETH.sol pragma solidity 0.8.21; interface IWETH is IERC20 { function deposit() external payable; function withdraw(uint256 wad) external; } // File contracts/ERC20Factory/ERC20/ERC20ByMetadrop.sol // Metadrop Contracts (v2.1.0) pragma solidity 0.8.21; /** * @dev Metadrop core ERC-20 contract * * @dev Implementation of the {IERC20} interface. * */ contract ERC20ByMetadrop is Context, IERC20ByMetadrop, Ownable2Step { bytes32 public constant x_META_ID_HASH = 0xbbea1002c70af261187c600e085eed6ea2311d8d64fc2ca23439065bbaba0449; using EnumerableSet for EnumerableSet.AddressSet; using EnumerableSet for EnumerableSet.Bytes32Set; using SafeERC20 for IERC20; uint256 public constant x_VERSION = 100020001000000000; uint256 internal constant BP_DENOM = 10000; uint256 internal constant ROUND_DEC = 100000000000; uint256 internal constant CALL_GAS_LIMIT = 50000; uint256 internal constant MAX_SWAP_THRESHOLD_MULTIPLE = 20; bytes32 internal constant GNOSIS_SAFE_PROXY = 0xb89c1b3bdf2cf8827818646bce9a8f6e372885f8c55e5c07acbd307cb133b000; uint256 public immutable lpSupply; uint256 public immutable projectSupply; uint256 public immutable botProtectionDurationInSeconds; address public immutable metadropTaxRecipient; address public immutable uniswapV2Pair; address public immutable driPool; address public immutable lpOwner; address public immutable projectSupplyRecipient; address public immutable metadropFactory; uint256 public immutable metadropTaxPeriodInDays; bool internal immutable _tokenHasTax; IUniswapV2Locker internal immutable _tokenVault; IUniswapV2Router02 internal immutable _uniswapRouter; /** @dev {Storage Slot 1} Vars read as part of transfers packed to a single * slot for warm reads. * Slot 1: * 128 * 32 * 16 * 5 * 8 * 2 * ------ * 256 * ------ */ uint128 private _totalSupply; uint32 public fundedDate; uint16 public projectBuyTaxBasisPoints; uint16 public projectSellTaxBasisPoints; uint16 public metadropBuyTaxBasisPoints; uint16 public metadropSellTaxBasisPoints; uint16 public swapThresholdBasisPoints; /** @dev {_autoSwapInProgress} We start with {_autoSwapInProgress} ON, as we don't want to * call autoswap when processing initial liquidity from this address. We turn this OFF when * liquidity has been loaded, and use this bool to control processing during auto-swaps * from that point onwards. */ bool private _autoSwapInProgress = true; /** @dev {Storage Slot 2} Vars read as part of transfers packed to a single * slot for warm reads. * Slot 1: * 128 * 128 * ------ * 256 * ------ */ uint128 public maxTokensPerTransaction; uint128 public maxTokensPerWallet; /** @dev {Storage Slot 3} Not read / written in transfers (unless autoswap taking place): * 160 * 88 * 8 * ------ * 256 * ------ */ address public projectTaxRecipient; uint88 public lpLockupInDays; bool public burnLPTokens; /** @dev {Storage Slot 4} Potentially written in transfers: * Slot 3: * 128 * 128 * ------ * 256 * ------ */ uint128 public projectTaxPendingSwap; uint128 public metadropTaxPendingSwap; /** @dev {Storage Slot 5 to n} Not read as part of transfers etc. */ string private _name; string private _symbol; /** @dev {_balances} Addresses balances */ mapping(address => uint256) private _balances; /** @dev {_allowances} Addresses allocance details */ mapping(address => mapping(address => uint256)) private _allowances; /** @dev {_validCallerCodeHashes} Code hashes of callers we consider valid */ EnumerableSet.Bytes32Set private _validCallerCodeHashes; /** @dev {_liquidityPools} Enumerable set for liquidity pool addresses */ EnumerableSet.AddressSet private _liquidityPools; /** @dev {_unlimited} Enumerable set for addresses where limits do not apply */ EnumerableSet.AddressSet private _unlimited; /** * @dev {constructor} * * @param integrationAddresses_ The project owner, uniswap router, unicrypt vault, metadrop factory and pool template. * @param baseParams_ configuration of this ERC20. * @param supplyParams_ Supply configuration of this ERC20. * @param taxParams_ Tax configuration of this ERC20 * @param taxParams_ Launch pool configuration of this ERC20 */ constructor( address[5] memory integrationAddresses_, bytes memory baseParams_, bytes memory supplyParams_, bytes memory taxParams_, bytes memory poolParams_ ) { _decodeBaseParams(integrationAddresses_[0], baseParams_); _uniswapRouter = IUniswapV2Router02(integrationAddresses_[1]); _tokenVault = IUniswapV2Locker(integrationAddresses_[2]); metadropFactory = (integrationAddresses_[3]); ERC20SupplyParameters memory supplyParams = abi.decode( supplyParams_, (ERC20SupplyParameters) ); ERC20TaxParameters memory taxParams = abi.decode( taxParams_, (ERC20TaxParameters) ); driPool = integrationAddresses_[4]; ERC20PoolParameters memory poolParams; if (integrationAddresses_[4] != address(0)) { poolParams = abi.decode(poolParams_, (ERC20PoolParameters)); } _processSupplyParams(supplyParams, poolParams); projectSupplyRecipient = supplyParams.projectSupplyRecipient; lpSupply = supplyParams.lpSupply * (10 ** decimals()); projectSupply = supplyParams.projectSupply * (10 ** decimals()); maxTokensPerWallet = uint128( supplyParams.maxTokensPerWallet * (10 ** decimals()) ); maxTokensPerTransaction = uint128( supplyParams.maxTokensPerTxn * (10 ** decimals()) ); lpLockupInDays = uint88(supplyParams.lpLockupInDays); botProtectionDurationInSeconds = supplyParams .botProtectionDurationInSeconds; lpOwner = supplyParams.projectLPOwner; burnLPTokens = supplyParams.burnLPTokens; _tokenHasTax = _processTaxParams(taxParams); metadropTaxPeriodInDays = taxParams.metadropTaxPeriodInDays; swapThresholdBasisPoints = uint16(taxParams.taxSwapThresholdBasisPoints); projectTaxRecipient = taxParams.projectTaxRecipient; metadropTaxRecipient = taxParams.metadropTaxRecipient; _mintBalances( lpSupply, projectSupply, poolParams.poolSupply * (10 ** decimals()) ); uniswapV2Pair = _createPair(); } /** * @dev {onlyOwnerFactoryOrPool} * * Throws if called by any account other than the owner, factory or pool. */ modifier onlyOwnerFactoryOrPool() { if ( metadropFactory != _msgSender() && owner() != _msgSender() && driPool != _msgSender() ) { _revert(CallerIsNotFactoryProjectOwnerOrPool.selector); } _; } /** * @dev function {_decodeBaseParams} * * Decode NFT Parameters * * @param projectOwner_ The owner of this contract * @param encodedBaseParams_ The base params encoded into a bytes array */ function _decodeBaseParams( address projectOwner_, bytes memory encodedBaseParams_ ) internal { _transferOwnership(projectOwner_); (_name, _symbol) = abi.decode(encodedBaseParams_, (string, string)); } /** * @dev function {_processSupplyParams} * * Process provided supply params * * @param erc20SupplyParameters_ The supply params * @param erc20PoolParameters_ The pool params */ function _processSupplyParams( ERC20SupplyParameters memory erc20SupplyParameters_, ERC20PoolParameters memory erc20PoolParameters_ ) internal { if ( erc20SupplyParameters_.maxSupply != (erc20SupplyParameters_.lpSupply + erc20SupplyParameters_.projectSupply + erc20PoolParameters_.poolSupply) ) { _revert(SupplyTotalMismatch.selector); } if (erc20SupplyParameters_.maxSupply > type(uint128).max) { _revert(MaxSupplyTooHigh.selector); } if (erc20SupplyParameters_.lpLockupInDays > type(uint88).max) { _revert(LPLockUpMustFitUint88.selector); } _unlimited.add(erc20SupplyParameters_.projectSupplyRecipient); _unlimited.add(address(this)); _unlimited.add(address(0)); } /** * @dev function {_processTaxParams} * * Process provided tax params * * @param erc20TaxParameters_ The tax params */ function _processTaxParams( ERC20TaxParameters memory erc20TaxParameters_ ) internal returns (bool tokenHasTax_) { /** * @dev We use the immutable var {_tokenHasTax} to avoid unneccesary storage writes and reads. If this * token does NOT have tax applied then there is no need to store or read these parameters, and we can * avoid this simply by checking the immutable var. Pass back the value for this var from this method. */ if ( erc20TaxParameters_.projectBuyTaxBasisPoints == 0 && erc20TaxParameters_.projectSellTaxBasisPoints == 0 && erc20TaxParameters_.metadropBuyTaxBasisPoints == 0 && erc20TaxParameters_.metadropSellTaxBasisPoints == 0 ) { return false; } else { projectBuyTaxBasisPoints = uint16( erc20TaxParameters_.projectBuyTaxBasisPoints ); projectSellTaxBasisPoints = uint16( erc20TaxParameters_.projectSellTaxBasisPoints ); metadropBuyTaxBasisPoints = uint16( erc20TaxParameters_.metadropBuyTaxBasisPoints ); metadropSellTaxBasisPoints = uint16( erc20TaxParameters_.metadropSellTaxBasisPoints ); return true; } } /** * @dev function {_mintBalances} * * Mint initial balances * * @param lpMint_ The number of tokens for liquidity * @param projectMint_ The number of tokens for the project treasury * @param poolMint_ The number of tokens for the launch pool */ function _mintBalances( uint256 lpMint_, uint256 projectMint_, uint256 poolMint_ ) internal { if (lpMint_ > 0) { _mint(address(this), lpMint_); } if (projectMint_ > 0) { _mint(projectSupplyRecipient, projectMint_); } if (poolMint_ > 0) { _mint(driPool, poolMint_); } } /** * @dev function {_createPair} * * Create the uniswap pair * * @return uniswapV2Pair_ The pair address */ function _createPair() internal returns (address uniswapV2Pair_) { if (_totalSupply > 0) { uniswapV2Pair_ = IUniswapV2Factory(_uniswapRouter.factory()).createPair( address(this), _uniswapRouter.WETH() ); _liquidityPools.add(uniswapV2Pair_); emit LiquidityPoolCreated(uniswapV2Pair_); } _unlimited.add(address(_uniswapRouter)); _unlimited.add(uniswapV2Pair_); return (uniswapV2Pair_); } /** * @dev function {addInitialLiquidity} * * Add initial liquidity to the uniswap pair * * @param vaultFee_ The vault fee in wei. This must match the required fee from the external vault contract. * @param lpLockupInDaysOverride_ The number of days to lock liquidity NOTE you can pass 0 to use the stored value. * This value is an override, and will override a stored value which is LOWER that it. If the value you are passing is * LOWER than the stored value the stored value will not be reduced. * * Example usage 1: When creating the coin the lpLockupInDays is set to 0. This means that on this call the * user can set the lockup to any value they like, as all integer values greater than zero will be used to override * that set in storage. * * Example usage 2: When using a DRI Pool the lockup period is set on this contract and the pool need not know anything * about this setting. The pool can pass back a 0 on this call and know that the existing value stored on this contract * will be used. * @param burnLPTokensOverride_ If the LP tokens should be burned (otherwise they are locked). This is an override field * that can ONLY be used to override a held value of FALSE with a new value of TRUE. * * Example usage 1: When creating the coin the user didn't add liquidity, or specify that the LP tokens were to be burned. * So burnLPTokens is held as FALSE. When they add liquidity they want to lock tokens, so they pass this in as FALSE again, * and it remains FALSE. * * Example usage 2: As above, but when later adding liquidity the user wants to burn the LP. So the stored value is FALSE * and the user passes TRUE into this method. The TRUE overrides the held value of FALSE and the tokens are burned. * * Example uusage 3: The user is using a DRI pool and they have specified on the coin creation that the LP tokens are to * be burned. This contract therefore holds TRUE for burnLPTokens. The DRI pool does not need to know what the user has * selected. It can safely pass back FALSE to this method call and the stored value of TRUE will remain, resulting in the * LP tokens being burned. */ function addInitialLiquidity( uint256 vaultFee_, uint256 lpLockupInDaysOverride_, bool burnLPTokensOverride_ ) external payable onlyOwnerFactoryOrPool { uint256 ethForLiquidity; if ((burnLPTokens == false) && (burnLPTokensOverride_ == true)) { burnLPTokens = true; } if (burnLPTokens) { if (msg.value == 0) { _revert(NoETHForLiquidityPair.selector); } ethForLiquidity = msg.value; } else { if (vaultFee_ >= msg.value) { // The amount of ETH MUST exceed the vault fee, otherwise what liquidity are we adding? _revert(NoETHForLiquidityPair.selector); } ethForLiquidity = msg.value - vaultFee_; } if (lpLockupInDaysOverride_ > lpLockupInDays) { lpLockupInDays = uint88(lpLockupInDaysOverride_); } _addInitialLiquidity(ethForLiquidity, vaultFee_); } /** * @dev function {_addInitialLiquidity} * * Add initial liquidity to the uniswap pair (internal function that does processing) * * @param ethAmount_ The amount of ETH passed into the call * @param vaultFee_ The vault fee in wei. This must match the required fee from the external vault contract. */ function _addInitialLiquidity( uint256 ethAmount_, uint256 vaultFee_ ) internal { // Funded date is the date of first funding. We can only add initial liquidity once. If this date is set, // we cannot proceed if (fundedDate != 0) { _revert(InitialLiquidityAlreadyAdded.selector); } fundedDate = uint32(block.timestamp); // Can only do this if this contract holds tokens: if (balanceOf(address(this)) == 0) { _revert(NoTokenForLiquidityPair.selector); } // Approve the uniswap router for an inifinite amount (max uint256) // This means that we don't need to worry about later incrememtal // approvals on tax swaps, as the uniswap router allowance will never // be decreased (see code in decreaseAllowance for reference) _approve(address(this), address(_uniswapRouter), type(uint256).max); // Add the liquidity: (uint256 amountA, uint256 amountB, uint256 lpTokens) = _uniswapRouter .addLiquidityETH{value: ethAmount_}( address(this), balanceOf(address(this)), 0, 0, address(this), block.timestamp ); emit InitialLiquidityAdded(amountA, amountB, lpTokens); // We now set this to false so that future transactions can be eligibile for autoswaps _autoSwapInProgress = false; // Are we locking, or burning? if (burnLPTokens) { _burnLiquidity(lpTokens); } else { // Lock the liquidity: _addLiquidityToVault(vaultFee_, lpTokens); } } /** * @dev function {_addLiquidityToVault} * * Lock initial liquidity on vault contract * * @param vaultFee_ The vault fee in wei. This must match the required fee from the external vault contract. * @param lpTokens_ The amount of LP tokens to be locked */ function _addLiquidityToVault(uint256 vaultFee_, uint256 lpTokens_) internal { IERC20(uniswapV2Pair).approve(address(_tokenVault), lpTokens_); _tokenVault.lockLPToken{value: vaultFee_}( uniswapV2Pair, IERC20(uniswapV2Pair).balanceOf(address(this)), block.timestamp + (lpLockupInDays * 1 days), payable(address(0)), true, payable(lpOwner) ); emit LiquidityLocked(lpTokens_, lpLockupInDays); } /** * @dev function {_burnLiquidity} * * Burn LP tokens * * @param lpTokens_ The amount of LP tokens to be locked */ function _burnLiquidity(uint256 lpTokens_) internal { IERC20(uniswapV2Pair).transfer(address(0), lpTokens_); emit LiquidityBurned(lpTokens_); } /** * @dev function {isLiquidityPool} * * Return if an address is a liquidity pool * * @param queryAddress_ The address being queried * @return bool The address is / isn't a liquidity pool */ function isLiquidityPool(address queryAddress_) public view returns (bool) { /** @dev We check the uniswapV2Pair address first as this is an immutable variable and therefore does not need * to be fetched from storage, saving gas if this address IS the uniswapV2Pool. We also add this address * to the enumerated set for ease of reference (for example it is returned in the getter), and it does * not add gas to any other calls, that still complete in 0(1) time. */ return (queryAddress_ == uniswapV2Pair || _liquidityPools.contains(queryAddress_)); } /** * @dev function {liquidityPools} * * Returns a list of all liquidity pools * * @return liquidityPools_ a list of all liquidity pools */ function liquidityPools() external view returns (address[] memory liquidityPools_) { return (_liquidityPools.values()); } /** * @dev function {addLiquidityPool} onlyOwner * * Allows the manager to add a liquidity pool to the pool enumerable set * * @param newLiquidityPool_ The address of the new liquidity pool */ function addLiquidityPool(address newLiquidityPool_) public onlyOwner { // Don't allow calls that didn't pass an address: if (newLiquidityPool_ == address(0)) { _revert(LiquidityPoolCannotBeAddressZero.selector); } // Only allow smart contract addresses to be added, as only these can be pools: if (newLiquidityPool_.code.length == 0) { _revert(LiquidityPoolMustBeAContractAddress.selector); } // Add this to the enumerated list: _liquidityPools.add(newLiquidityPool_); emit LiquidityPoolAdded(newLiquidityPool_); } /** * @dev function {removeLiquidityPool} onlyOwner * * Allows the manager to remove a liquidity pool * * @param removedLiquidityPool_ The address of the old removed liquidity pool */ function removeLiquidityPool( address removedLiquidityPool_ ) external onlyOwner { // Remove this from the enumerated list: _liquidityPools.remove(removedLiquidityPool_); emit LiquidityPoolRemoved(removedLiquidityPool_); } /** * @dev function {isUnlimited} * * Return if an address is unlimited (is not subject to per txn and per wallet limits) * * @param queryAddress_ The address being queried * @return bool The address is / isn't unlimited */ function isUnlimited(address queryAddress_) public view returns (bool) { return (_unlimited.contains(queryAddress_)); } /** * @dev function {unlimitedAddresses} * * Returns a list of all unlimited addresses * * @return unlimitedAddresses_ a list of all unlimited addresses */ function unlimitedAddresses() external view returns (address[] memory unlimitedAddresses_) { return (_unlimited.values()); } /** * @dev function {addUnlimited} onlyOwner * * Allows the manager to add an unlimited address * * @param newUnlimited_ The address of the new unlimited address */ function addUnlimited(address newUnlimited_) external onlyOwner { // Add this to the enumerated list: _unlimited.add(newUnlimited_); emit UnlimitedAddressAdded(newUnlimited_); } /** * @dev function {removeUnlimited} onlyOwner * * Allows the manager to remove an unlimited address * * @param removedUnlimited_ The address of the old removed unlimited address */ function removeUnlimited(address removedUnlimited_) external onlyOwner { // Remove this from the enumerated list: _unlimited.remove(removedUnlimited_); emit UnlimitedAddressRemoved(removedUnlimited_); } /** * @dev function {isValidCaller} * * Return if an address is a valid caller * * @param queryHash_ The code hash being queried * @return bool The address is / isn't a valid caller */ function isValidCaller(bytes32 queryHash_) public view returns (bool) { return (_validCallerCodeHashes.contains(queryHash_)); } /** * @dev function {validCallers} * * Returns a list of all valid caller code hashes * * @return validCallerHashes_ a list of all valid caller code hashes */ function validCallers() external view returns (bytes32[] memory validCallerHashes_) { return (_validCallerCodeHashes.values()); } /** * @dev function {addValidCaller} onlyOwner * * Allows the owner to add the hash of a valid caller * * @param newValidCallerHash_ The hash of the new valid caller */ function addValidCaller(bytes32 newValidCallerHash_) external onlyOwner { _validCallerCodeHashes.add(newValidCallerHash_); emit ValidCallerAdded(newValidCallerHash_); } /** * @dev function {removeValidCaller} onlyOwner * * Allows the owner to remove a valid caller * * @param removedValidCallerHash_ The hash of the old removed valid caller */ function removeValidCaller( bytes32 removedValidCallerHash_ ) external onlyOwner { // Remove this from the enumerated list: _validCallerCodeHashes.remove(removedValidCallerHash_); emit ValidCallerRemoved(removedValidCallerHash_); } /** * @dev function {setProjectTaxRecipient} onlyOwner * * Allows the manager to set the project tax recipient address * * @param projectTaxRecipient_ New recipient address */ function setProjectTaxRecipient( address projectTaxRecipient_ ) external onlyOwner { projectTaxRecipient = projectTaxRecipient_; emit ProjectTaxRecipientUpdated(projectTaxRecipient_); } /** * @dev function {setSwapThresholdBasisPoints} onlyOwner * * Allows the manager to set the autoswap threshold * * @param swapThresholdBasisPoints_ New swap threshold in basis points */ function setSwapThresholdBasisPoints( uint16 swapThresholdBasisPoints_ ) external onlyOwner { uint256 oldswapThresholdBasisPoints = swapThresholdBasisPoints; swapThresholdBasisPoints = swapThresholdBasisPoints_; emit AutoSwapThresholdUpdated( oldswapThresholdBasisPoints, swapThresholdBasisPoints_ ); } /** * @dev function {setProjectTaxRates} onlyOwner * * Change the tax rates, subject to only ever decreasing * * @param newProjectBuyTaxBasisPoints_ The new buy tax rate * @param newProjectSellTaxBasisPoints_ The new sell tax rate */ function setProjectTaxRates( uint16 newProjectBuyTaxBasisPoints_, uint16 newProjectSellTaxBasisPoints_ ) external onlyOwner { uint16 oldBuyTaxBasisPoints = projectBuyTaxBasisPoints; uint16 oldSellTaxBasisPoints = projectSellTaxBasisPoints; // Cannot increase, down only if (newProjectBuyTaxBasisPoints_ > oldBuyTaxBasisPoints) { _revert(CanOnlyReduce.selector); } // Cannot increase, down only if (newProjectSellTaxBasisPoints_ > oldSellTaxBasisPoints) { _revert(CanOnlyReduce.selector); } projectBuyTaxBasisPoints = newProjectBuyTaxBasisPoints_; projectSellTaxBasisPoints = newProjectSellTaxBasisPoints_; // If either rate has been reduced to zero we set the metadrop tax rate // (if non zero) to zero as well: if ( newProjectBuyTaxBasisPoints_ == 0 || newProjectSellTaxBasisPoints_ == 0 ) { uint16 oldMetadropBuyTaxBasisPoints = metadropBuyTaxBasisPoints; uint16 oldMetadropSellTaxBasisPoints = metadropSellTaxBasisPoints; uint16 newMetadropBuyTaxBasisPoints = oldMetadropBuyTaxBasisPoints; uint16 newMetadropSellTaxBasisPoints = oldMetadropSellTaxBasisPoints; if (newProjectBuyTaxBasisPoints_ == 0) { newMetadropBuyTaxBasisPoints = 0; metadropBuyTaxBasisPoints = 0; } if (newProjectSellTaxBasisPoints_ == 0) { newMetadropSellTaxBasisPoints = 0; metadropSellTaxBasisPoints = 0; } emit MetadropTaxBasisPointsChanged( oldMetadropBuyTaxBasisPoints, newMetadropBuyTaxBasisPoints, oldMetadropSellTaxBasisPoints, newMetadropSellTaxBasisPoints ); } emit ProjectTaxBasisPointsChanged( oldBuyTaxBasisPoints, newProjectBuyTaxBasisPoints_, oldSellTaxBasisPoints, newProjectSellTaxBasisPoints_ ); } /** * @dev function {setLimits} onlyOwner * * Change the limits on transactions and holdings * * @param newMaxTokensPerTransaction_ The new per txn limit * @param newMaxTokensPerWallet_ The new tokens per wallet limit */ function setLimits( uint256 newMaxTokensPerTransaction_, uint256 newMaxTokensPerWallet_ ) external onlyOwner { uint256 oldMaxTokensPerTransaction = maxTokensPerTransaction; uint256 oldMaxTokensPerWallet = maxTokensPerWallet; // Limit can only be increased: if ( (oldMaxTokensPerTransaction == 0 && newMaxTokensPerTransaction_ != 0) || (oldMaxTokensPerWallet == 0 && newMaxTokensPerWallet_ != 0) ) { _revert(LimitsCanOnlyBeRaised.selector); } if ( ((newMaxTokensPerTransaction_ != 0) && newMaxTokensPerTransaction_ < oldMaxTokensPerTransaction) || ((newMaxTokensPerWallet_ != 0) && newMaxTokensPerWallet_ < oldMaxTokensPerWallet) ) { _revert(LimitsCanOnlyBeRaised.selector); } maxTokensPerTransaction = uint128(newMaxTokensPerTransaction_); maxTokensPerWallet = uint128(newMaxTokensPerWallet_); emit LimitsUpdated( oldMaxTokensPerTransaction, newMaxTokensPerTransaction_, oldMaxTokensPerWallet, newMaxTokensPerWallet_ ); } /** * @dev function {limitsEnforced} * * Return if limits are enforced on this contract * * @return bool : they are / aren't */ function limitsEnforced() public view returns (bool) { // Limits are not enforced if // this is renounced AND after then protection end date // OR prior to LP funding: // The second clause of 'fundedDate == 0' isn't strictly needed, since with a funded // date of 0 we would always expect the block.timestamp to be less than 0 plus // the botProtectionDurationInSeconds. But, to cover the miniscule chance of a user // selecting a truly enormous bot protection period, such that when added to 0 it // is more than the current block.timestamp, we have included this second clause. There // is no permanent gas overhead (the logic will be returning from the first clause after // the bot protection period has expired). During the bot protection period there is a minor // gas overhead from evaluating the fundedDate == 0 (which will be false), but this is minimal. if ( (owner() == address(0) && block.timestamp > fundedDate + botProtectionDurationInSeconds) || fundedDate == 0 ) { return false; } else { // LP has been funded AND we are within the protection period: return true; } } /** * @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 getMetadropBuyTaxBasisPoints * * Return the metadrop buy tax basis points given the timed expiry */ function getMetadropBuyTaxBasisPoints() public view returns (uint256) { // If we are outside the metadrop tax period this is ZERO if (block.timestamp > (fundedDate + (metadropTaxPeriodInDays * 1 days))) { return 0; } else { return metadropBuyTaxBasisPoints; } } /** * @dev getMetadropSellTaxBasisPoints * * Return the metadrop sell tax basis points given the timed expiry */ function getMetadropSellTaxBasisPoints() public view returns (uint256) { // If we are outside the metadrop tax period this is ZERO if (block.timestamp > (fundedDate + (metadropTaxPeriodInDays * 1 days))) { return 0; } else { return metadropSellTaxBasisPoints; } } /** * @dev totalBuyTaxBasisPoints * * Provide easy to view tax total: */ function totalBuyTaxBasisPoints() public view returns (uint256) { return projectBuyTaxBasisPoints + getMetadropBuyTaxBasisPoints(); } /** * @dev totalSellTaxBasisPoints * * Provide easy to view tax total: */ function totalSellTaxBasisPoints() public view returns (uint256) { return projectSellTaxBasisPoints + getMetadropSellTaxBasisPoints(); } /** * @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(IERC20) returns (bool) { address owner = _msgSender(); _transfer( owner, to, amount, (isLiquidityPool(owner) || isLiquidityPool(to)) ); 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, (isLiquidityPool(from) || isLiquidityPool(to))); 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); if (currentAllowance < subtractedValue) { _revert(AllowanceDecreasedBelowZero.selector); } 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, bool applyTax ) internal virtual { _beforeTokenTransfer(from, to, amount); // Perform pre-tax validation (e.g. amount doesn't exceed balance, max txn amount) uint256 fromBalance = _pretaxValidationAndLimits(from, to, amount); // Perform autoswap if eligible _autoSwap(from, to); // Process taxes uint256 amountMinusTax = _taxProcessing(applyTax, to, from, amount); // Perform post-tax validation (e.g. total balance after post-tax amount applied) _posttaxValidationAndLimits(from, to, amountMinusTax); _balances[from] = fromBalance - amount; _balances[to] += amountMinusTax; emit Transfer(from, to, amountMinusTax); _afterTokenTransfer(from, to, amount); } /** * @dev function {_pretaxValidationAndLimits} * * Perform validation on pre-tax amounts * * @param from_ From address for the transaction * @param to_ To address for the transaction * @param amount_ Amount of the transaction */ function _pretaxValidationAndLimits( address from_, address to_, uint256 amount_ ) internal view returns (uint256 fromBalance_) { // This can't be a transfer to the liquidity pool before the funding date // UNLESS the from address is this contract. This ensures that the initial // LP funding transaction is from this contract using the supply of tokens // designated for the LP pool, and therefore the initial price in the pool // is being set as expected. // // This protects from, for example, tokens from a team minted supply being // paired with ETH and added to the pool, setting the initial price, BEFORE // the initial liquidity is added through this contract. if (to_ == uniswapV2Pair && from_ != address(this) && fundedDate == 0) { _revert(InitialLiquidityNotYetAdded.selector); } if (from_ == address(0)) { _revert(TransferFromZeroAddress.selector); } if (to_ == address(0)) { _revert(TransferToZeroAddress.selector); } fromBalance_ = _balances[from_]; if (fromBalance_ < amount_) { _revert(TransferAmountExceedsBalance.selector); } if ( limitsEnforced() && (maxTokensPerTransaction != 0) && ((isLiquidityPool(from_) && !isUnlimited(to_)) || (isLiquidityPool(to_) && !isUnlimited(from_))) ) { // Liquidity pools aren't always going to round cleanly. This can (and does) // mean that a limit of 5,000 tokens (for example) will trigger on a transfer // of 5,000 tokens, as the transfer is actually for 5,000.00000000000000213. // While 4,999 will work fine, it isn't hugely user friendly. So we buffer // the limit with rounding decimals, which in all cases are considerably less // than one whole token: uint256 roundedLimited; unchecked { roundedLimited = maxTokensPerTransaction + ROUND_DEC; } if (amount_ > roundedLimited) { _revert(MaxTokensPerTxnExceeded.selector); } } return (fromBalance_); } /** * @dev function {_posttaxValidationAndLimits} * * Perform validation on post-tax amounts * * @param to_ To address for the transaction * @param amount_ Amount of the transaction */ function _posttaxValidationAndLimits( address from_, address to_, uint256 amount_ ) internal view { if ( limitsEnforced() && (maxTokensPerWallet != 0) && !isUnlimited(to_) && // If this is a buy (from a liquidity pool), we apply if the to_ // address isn't noted as unlimited: (isLiquidityPool(from_) && !isUnlimited(to_)) ) { // Liquidity pools aren't always going to round cleanly. This can (and does) // mean that a limit of 5,000 tokens (for example) will trigger on a max holding // of 5,000 tokens, as the transfer to achieve that is actually for // 5,000.00000000000000213. While 4,999 will work fine, it isn't hugely user friendly. // So we buffer the limit with rounding decimals, which in all cases are considerably // less than one whole token: uint256 roundedLimited; unchecked { roundedLimited = maxTokensPerWallet + ROUND_DEC; } if ((amount_ + balanceOf(to_) > roundedLimited)) { _revert(MaxTokensPerWalletExceeded.selector); } } } /** * @dev function {_taxProcessing} * * Perform tax processing * * @param applyTax_ Do we apply tax to this transaction? * @param to_ The reciever of the token * @param from_ The sender of the token * @param sentAmount_ The amount being send * @return amountLessTax_ The amount that will be recieved, i.e. the send amount minus tax */ function _taxProcessing( bool applyTax_, address to_, address from_, uint256 sentAmount_ ) internal returns (uint256 amountLessTax_) { amountLessTax_ = sentAmount_; unchecked { if (_tokenHasTax && applyTax_ && !_autoSwapInProgress) { uint256 tax; // on sell if (isLiquidityPool(to_) && totalSellTaxBasisPoints() > 0) { if (projectSellTaxBasisPoints > 0) { uint256 projectTax = ((sentAmount_ * projectSellTaxBasisPoints) / BP_DENOM); projectTaxPendingSwap += uint128(projectTax); tax += projectTax; } uint256 metadropSellTax = getMetadropSellTaxBasisPoints(); if (metadropSellTax > 0) { uint256 metadropTax = ((sentAmount_ * metadropSellTax) / BP_DENOM); metadropTaxPendingSwap += uint128(metadropTax); tax += metadropTax; } } // on buy else if (isLiquidityPool(from_) && totalBuyTaxBasisPoints() > 0) { if (projectBuyTaxBasisPoints > 0) { uint256 projectTax = ((sentAmount_ * projectBuyTaxBasisPoints) / BP_DENOM); projectTaxPendingSwap += uint128(projectTax); tax += projectTax; } uint256 metadropBuyTax = getMetadropBuyTaxBasisPoints(); if (metadropBuyTax > 0) { uint256 metadropTax = ((sentAmount_ * metadropBuyTax) / BP_DENOM); metadropTaxPendingSwap += uint128(metadropTax); tax += metadropTax; } } if (tax > 0) { _balances[address(this)] += tax; emit Transfer(from_, address(this), tax); amountLessTax_ -= tax; } } } return (amountLessTax_); } /** * @dev function {_autoSwap} * * Automate the swap of accumulated tax fees to native token * * @param from_ The sender of the token * @param to_ The recipient of the token */ function _autoSwap(address from_, address to_) internal { if (_tokenHasTax) { uint256 contractBalance = balanceOf(address(this)); uint256 swapBalance = contractBalance; uint256 swapThresholdInTokens = (_totalSupply * swapThresholdBasisPoints) / BP_DENOM; if (_eligibleForSwap(from_, to_, swapBalance, swapThresholdInTokens)) { // Store that a swap back is in progress: _autoSwapInProgress = true; // Check if we need to reduce the amount of tokens for this swap: if (swapBalance > swapThresholdInTokens * MAX_SWAP_THRESHOLD_MULTIPLE) { swapBalance = swapThresholdInTokens * MAX_SWAP_THRESHOLD_MULTIPLE; } // Perform the auto swap to native token: _swapTaxForNative(swapBalance, contractBalance); // Flag that the autoswap is complete: _autoSwapInProgress = false; } } } /** * @dev function {_eligibleForSwap} * * Is the current transfer eligible for autoswap * * @param from_ The sender of the token * @param to_ The recipient of the token * @param taxBalance_ The current accumulated tax balance * @param swapThresholdInTokens_ The swap threshold as a token amount */ function _eligibleForSwap( address from_, address to_, uint256 taxBalance_, uint256 swapThresholdInTokens_ ) internal view returns (bool) { return (taxBalance_ >= swapThresholdInTokens_ && !_autoSwapInProgress && !isLiquidityPool(from_) && from_ != address(_uniswapRouter) && to_ != address(_uniswapRouter)); } /** * @dev function {_swapTaxForNative} * * Swap tokens taken as tax for native token * * @param swapBalance_ The current accumulated tax balance to swap * @param contractBalance_ The current accumulated total tax balance */ function _swapTaxForNative( uint256 swapBalance_, uint256 contractBalance_ ) internal { uint256 preSwapBalance = address(this).balance; address[] memory path = new address[](2); path[0] = address(this); path[1] = _uniswapRouter.WETH(); // Wrap external calls in try / catch to handle errors try _uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens( swapBalance_, 0, path, address(this), block.timestamp + 600 ) { uint256 postSwapBalance = address(this).balance; uint256 balanceToDistribute = postSwapBalance - preSwapBalance; uint256 totalPendingSwap = projectTaxPendingSwap + metadropTaxPendingSwap; uint256 projectBalanceToDistribute = (balanceToDistribute * projectTaxPendingSwap) / totalPendingSwap; uint256 metadropBalanceToDistribute = (balanceToDistribute * metadropTaxPendingSwap) / totalPendingSwap; // We will not have swapped all tax tokens IF the amount was greater than the max auto swap. // We therefore cannot just set the pending swap counters to 0. Instead, in this scenario, // we must reduce them in proportion to the swap amount vs the remaining balance + swap // amount. // // For example: // * swap Balance is 250 // * contract balance is 385. // * projectTaxPendingSwap is 300 // * metadropTaxPendingSwap is 85. // // The new total for the projectTaxPendingSwap is: // = 300 - ((300 * 250) / 385) // = 300 - 194 // = 106 // The new total for the metadropTaxPendingSwap is: // = 85 - ((85 * 250) / 385) // = 85 - 55 // = 30 // if (swapBalance_ < contractBalance_) { projectTaxPendingSwap -= uint128( (projectTaxPendingSwap * swapBalance_) / contractBalance_ ); metadropTaxPendingSwap -= uint128( (metadropTaxPendingSwap * swapBalance_) / contractBalance_ ); } else { (projectTaxPendingSwap, metadropTaxPendingSwap) = (0, 0); } // Distribute to treasuries: bool success; address weth; uint256 gas; if (projectBalanceToDistribute > 0) { // If no gas limit was provided or provided gas limit greater than gas left, just use the remaining gas. gas = (CALL_GAS_LIMIT == 0 || CALL_GAS_LIMIT > gasleft()) ? gasleft() : CALL_GAS_LIMIT; // We limit the gas passed so that a called address cannot cause a block out of gas error: (success, ) = projectTaxRecipient.call{ value: projectBalanceToDistribute, gas: gas }(""); // If the ETH transfer fails, wrap the ETH and send it as WETH. We do this so that a called // address cannot cause this transfer to fail, either intentionally or by mistake: if (!success) { if (weth == address(0)) { weth = _uniswapRouter.WETH(); } try IWETH(weth).deposit{value: projectBalanceToDistribute}() { try IERC20(address(weth)).transfer( projectTaxRecipient, projectBalanceToDistribute ) {} catch { // Dont allow a failed external call (in this case to WETH) to stop a transfer. // Emit that this has occured and continue. emit ExternalCallError(1); } } catch { // Dont allow a failed external call (in this case to WETH) to stop a transfer. // Emit that this has occured and continue. emit ExternalCallError(2); } } } if (metadropBalanceToDistribute > 0) { // If no gas limit was provided or provided gas limit greater than gas left, just use the remaining gas. gas = (CALL_GAS_LIMIT == 0 || CALL_GAS_LIMIT > gasleft()) ? gasleft() : CALL_GAS_LIMIT; (success, ) = metadropTaxRecipient.call{ value: metadropBalanceToDistribute, gas: gas }(""); // If the ETH transfer fails, wrap the ETH and send it as WETH. We do this so that a called // address cannot cause this transfer to fail, either intentionally or by mistake: if (!success) { if (weth == address(0)) { weth = _uniswapRouter.WETH(); } try IWETH(weth).deposit{value: metadropBalanceToDistribute}() { try IERC20(address(weth)).transfer( metadropTaxRecipient, metadropBalanceToDistribute ) {} catch { // Dont allow a failed external call (in this case to WETH) to stop a transfer. // Emit that this has occured and continue. emit ExternalCallError(3); } } catch { // Dont allow a failed external call (in this case to WETH) to stop a transfer. // Emit that this has occured and continue. emit ExternalCallError(4); } } } } catch { // Dont allow a failed external call (in this case to uniswap) to stop a transfer. // Emit that this has occured and continue. emit ExternalCallError(5); } } /** * @dev distributeTaxTokens * * Allows the distribution of tax tokens to the designated recipient(s) * * As part of standard processing the tax token balance being above the threshold * will trigger an autoswap to ETH and distribution of this ETH to the designated * recipients. This is automatic and there is no need for user involvement. * * As part of this swap there are a number of calculations performed, particularly * if the tax balance is above MAX_SWAP_THRESHOLD_MULTIPLE. * * Testing indicates that these calculations are safe. But given the data / code * interactions it remains possible that some edge case set of scenarios may cause * an issue with these calculations. * * This method is therefore provided as a 'fallback' option to safely distribute * accumulated taxes from the contract, with a direct transfer of the ERC20 tokens * themselves. */ function distributeTaxTokens() external { if (projectTaxPendingSwap > 0) { uint256 projectDistribution = projectTaxPendingSwap; projectTaxPendingSwap = 0; _transfer(address(this), projectTaxRecipient, projectDistribution, false); } if (metadropTaxPendingSwap > 0) { uint256 metadropDistribution = metadropTaxPendingSwap; metadropTaxPendingSwap = 0; _transfer( address(this), metadropTaxRecipient, metadropDistribution, false ); } } /** * @dev function {withdrawETH} onlyOwner * * A withdraw function to allow ETH to be withdrawn by the manager * * This contract should never hold ETH. The only envisaged scenario where * it might hold ETH is a failed autoswap where the uniswap swap has completed, * the recipient of ETH reverts, the contract then wraps to WETH and the * wrap to WETH fails. * * This feels unlikely. But, for safety, we include this method. * * @param amount_ The amount to withdraw */ function withdrawETH(uint256 amount_) external onlyOwner { (bool success, ) = _msgSender().call{value: amount_}(""); if (!success) { _revert(TransferFailed.selector); } } /** * @dev function {withdrawERC20} onlyOwner * * A withdraw function to allow ERC20s (except address(this)) to be withdrawn. * * This contract should never hold ERC20s other than tax tokens. The only envisaged * scenario where it might hold an ERC20 is a failed autoswap where the uniswap swap * has completed, the recipient of ETH reverts, the contract then wraps to WETH, the * wrap to WETH succeeds, BUT then the transfer of WETH fails. * * This feels even less likely than the scenario where ETH is held on the contract. * But, for safety, we include this method. * * @param token_ The ERC20 contract * @param amount_ The amount to withdraw */ function withdrawERC20(address token_, uint256 amount_) external onlyOwner { if (token_ == address(this)) { _revert(CannotWithdrawThisToken.selector); } IERC20(token_).safeTransfer(_msgSender(), 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 { if (account == address(0)) { _revert(MintToZeroAddress.selector); } _beforeTokenTransfer(address(0), account, amount); _totalSupply += uint128(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 { if (account == address(0)) { _revert(BurnFromTheZeroAddress.selector); } _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; if (accountBalance < amount) { _revert(BurnExceedsBalance.selector); } unchecked { _balances[account] = accountBalance - amount; // Overflow not possible: amount <= accountBalance <= totalSupply. _totalSupply -= uint128(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 { if (owner == address(0)) { _revert(ApproveFromTheZeroAddress.selector); } if (spender == address(0)) { _revert(ApproveToTheZeroAddress.selector); } _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) { if (currentAllowance < amount) { _revert(InsufficientAllowance.selector); } unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Destroys a `value` amount of tokens from the caller. * * See {ERC20-_burn}. */ function burn(uint256 value) public virtual { _burn(_msgSender(), value); } /** * @dev Destroys a `value` amount of 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 * `value`. */ function burnFrom(address account, uint256 value) public virtual { _spendAllowance(account, _msgSender(), value); _burn(account, value); } /** * @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 {} receive() external payable {} } // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ // @@ @@ // @@ Metadrop has no affiliation with and does not endorse this token or its creators in any @@ // @@ way, unless otherwise stated. For all terms and conditions associated with tokens launched @@ // @@ using Metadrop software, refer to the terms published at metadrop[dot]com/legal. @@ // @@ @@ // @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : integrationAddresses_ (address[5]): 0x420690f8Af621AB7F2C5925Dd2BD33F481861b8B,0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D,0x663A5C229c09b049E36dCc11a9B0d4a8Eb9db214,0x8cDD488363dE72635b55BB263cc4C29041e6aa1a,0x0000000000000000000000000000000000000000
Arg [1] : baseParams_ (bytes): 0x000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000134d656c696f72697374696320536f63696574790000000000000000000000000000000000000000000000000000000000000000000000000000000000000000054d454c494f000000000000000000000000000000000000000000000000000000
Arg [2] : supplyParams_ (bytes): 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
Arg [3] : taxParams_ (bytes): 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
Arg [4] : poolParams_ (bytes): 0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
-----Encoded View---------------
47 Constructor Arguments found :
Arg [0] : 000000000000000000000000420690f8af621ab7f2c5925dd2bd33f481861b8b
Arg [1] : 0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d
Arg [2] : 000000000000000000000000663a5c229c09b049e36dcc11a9b0d4a8eb9db214
Arg [3] : 0000000000000000000000008cdd488363de72635b55bb263cc4c29041e6aa1a
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000240
Arg [7] : 00000000000000000000000000000000000000000000000000000000000003a0
Arg [8] : 00000000000000000000000000000000000000000000000000000000000004c0
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [11] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [12] : 0000000000000000000000000000000000000000000000000000000000000001
Arg [13] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [14] : 0000000000000000000000000000000000000000000000000000000000000013
Arg [15] : 4d656c696f72697374696320536f636965747900000000000000000000000000
Arg [16] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [17] : 4d454c494f000000000000000000000000000000000000000000000000000000
Arg [18] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [19] : 000000000000000000000000000000000000000000000000000000174876e800
Arg [20] : 00000000000000000000000000000000000000000000000000000012a05f2000
Arg [21] : 00000000000000000000000000000000000000000000000000000004a817c800
Arg [22] : 000000000000000000000000000000000000000000000000000000003b9aca00
Arg [23] : 000000000000000000000000000000000000000000000000000000003b9aca00
Arg [24] : 0000000000000000000000000000000000000000000000000000000000001b17
Arg [25] : 00000000000000000000000000000000000000000000000000000000bbf81e00
Arg [26] : 000000000000000000000000420690f8af621ab7f2c5925dd2bd33f481861b8b
Arg [27] : 000000000000000000000000420690f8af621ab7f2c5925dd2bd33f481861b8b
Arg [28] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [29] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [30] : 00000000000000000000000000000000000000000000000000000000000003e8
Arg [31] : 00000000000000000000000000000000000000000000000000000000000003e8
Arg [32] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [33] : 0000000000000000000000000000000000000000000000000000000000000032
Arg [34] : 0000000000000000000000000000000000000000000000000000000000000032
Arg [35] : 000000000000000000000000000000000000000000000000000000000000001e
Arg [36] : 000000000000000000000000226bae309f5545efabdcadd0c3dcc4676a18c92a
Arg [37] : 000000000000000000000000de3ff2a50bd1ba1bd6a608ea0138946dddf595bc
Arg [38] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [39] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [40] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [41] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [42] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [43] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [44] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [45] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [46] : 0000000000000000000000000000000000000000000000000000000000000000
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OVERVIEW
$MELIO is the currency of the Melioristic Society. Its AI algorithm is programmed for this currency to go UP only and to use the tax to fund the future of our Utopian City.Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | Ether (ETH) | 100.00% | $3,332.8 | 0.05 | $166.64 |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.