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Contract Source Code Verified (Exact Match)
Contract Name:
WellClaim
Compiler Version
v0.8.24+commit.e11b9ed9
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol"; import "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol"; import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol"; import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol"; import {SafeERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import {IERC721} from "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import {IDelegationRegistry} from "./interfaces/IDelegationRegistry.sol"; import {IDelegateRegistry} from "./interfaces/IDelegateRegistry.sol"; import "./interfaces/IWellClaim.sol"; // import "hardhat/console.sol"; /// @title A contract for claiming $WELL over a parameterized vesting schedule contract WellClaim is IWellClaim, Initializable, UUPSUpgradeable, ReentrancyGuardUpgradeable, OwnableUpgradeable { using SafeERC20 for IERC20; uint256 private constant _BASIS_POINTS = 10_000; uint256 private constant _LOCK_UP_SLOT = 180; uint256 private constant _END_CYCLE = 4; uint256 private constant _END_CYCLE_CONTRIBUTORS = 6; uint256 private constant _MAX_CLAIM_PERIOD = 30 days; address public upgrader; // to be set address public multiClaim; // to be set IERC721[] public nftCollections; IDelegationRegistry public dc; IDelegateRegistry public dcV2; uint256 public claimStartDate; IERC20 public claimToken; bool public claimActive; // bool public claimTokenDeposited; bool public unclaimedNFTRewardsWithdrawn; bool public upgraderRenounced; uint64 public currentNFTUnlockedBP; uint64 public previousNFTUnlockedBP; uint128 public currentNFTUnlockTimestamp; mapping(address userAddress => mapping(ClaimType claimType => ClaimData userClaimData)) public usersClaimData; mapping(uint256 collectionId => mapping(uint256 tokenId => NFTClaimData userClaimData)) public nftUsersClaimData; mapping(ClaimType claimType => ClaimSchedule claimSchedule) public claimScheduleOf; mapping(uint256 collectionId => UnclaimedNFTRewards) public unclaimedNftRewards; mapping(bytes signature => bool) public usedSignatures; address public signer; string public signatureActionPrefix; // required by the OZ UUPS module function _authorizeUpgrade(address) internal override onlyUpgrader {} /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } function initialize( address _claimTokenAddress, address _kzgAddress, address _kubzAddress, address _ygpzAddress ) external initializer { require(_claimTokenAddress != address(0), "_claimTokenAddress should not be 0"); require(_kzgAddress != address(0), "_kzgAddress should not be 0"); require(_kubzAddress != address(0), "_kubzAddress should not be 0"); require(_ygpzAddress != address(0), "_ygpzAddress should not be 0"); ReentrancyGuardUpgradeable.__ReentrancyGuard_init_unchained(); OwnableUpgradeable.__Ownable_init_unchained(msg.sender); UUPSUpgradeable.__UUPSUpgradeable_init(); dc = IDelegationRegistry(0x00000000000076A84feF008CDAbe6409d2FE638B); dcV2 = IDelegateRegistry(0x00000000000000447e69651d841bD8D104Bed493); claimToken = IERC20(_claimTokenAddress); nftCollections = [ IERC721(_kzgAddress), IERC721(_kubzAddress), IERC721(_ygpzAddress) ]; upgrader = msg.sender; } /// @notice Claim token by claimTypes according to the vesting schedule after claim starts, user won't be able to claim after the allocated $WELL are fully vested for _MAX_CLAIM_PERIOD /// @dev ONLY presaleClaim, ecosystem and contributor contract; Verify claim data and transfer claim token to user if needed, should not be called by NFT holder, /// emit { UserClaimed } event for amount claimed /// @param _vault Vault address of delegate.xyz; pass address(0) if not using delegate wallet /// @param _claimTypes Array of ClaimType to claim function claim( address _vault, ClaimType[] calldata _claimTypes ) public nonReentrant onlyValidClaimSetup { address requester = _getRequester(_vault); uint256 totalClaimable = _claim(requester, _claimTypes); claimToken.safeTransfer(requester, totalClaimable); } /// @notice Claim OPTIONALLY on NFTAirdrop/NFTRewards/WalletRewards token by all eligible NFTs according to the vesting schedule after claim starts, user won't be able to claim after the allocated $WELL are fully vested for _MAX_CLAIM_PERIOD /// @dev ONLY nftClaim contract; ONLY related to NFT claimTypes(i.e. NFTRewards & WalletRewards); Verify claim data and transfer claim token to NFT owner if needed, emit { BulkClaimedInNFTs } event for amount claimed /// @param _vault Vault address of delegate.xyz; pass address(0) if not using delegate wallet /// @param _nftCollectionClaimRequests Array of NFTCollectionClaimRequest that consists collection ID of the NFT, token ID(s) the owner owns, array of booleans to indicate NFTAirdrop/NFTRewards claim for each token ID function claimInNFTs( address _vault, NFTCollectionClaimRequest[] calldata _nftCollectionClaimRequests, bool _withWalletRewards ) external nonReentrant onlyValidClaimSetup { // console.log(block.timestamp); address requester = _getRequester(_vault); uint256 totalClaimable = _claimInNFTs( requester, _nftCollectionClaimRequests, _withWalletRewards ); claimToken.safeTransfer(requester, totalClaimable); } // =================== // Multicall Functions // =================== /// @notice Claim token by claimTypes according to the vesting schedule after claim starts /// @dev Verify caller is multiClaim, claim data and transfer claim token to _requester if needed, should not be called by NFT holder /// emit { UserClaimed } event for amount claimed /// @param _requester address of eligible claim wallet /// @param _claimTypes Array of ClaimType to claim function claimFromMulti( address _requester, ClaimType[] calldata _claimTypes ) external nonReentrant onlyValidClaimSetup onlyMultiClaim { uint256 totalClaimable = _claim(_requester, _claimTypes); claimToken.safeTransfer(_requester, totalClaimable); } /// @notice Bulk claim token by claimTypes and eligible NFTs according to the vesting schedule after claim starts /// @dev Verify caller is multiClaim, claim data and transfer claim token to NFT owner if needed, emit { BulkClaimedInNFTs } event for amount claimed /// @param _requester address of eligible holder wallet /// @param _nftCollectionClaimRequests Array of NFTCollectionClaimRequest that consists collection ID of the NFT, token ID(s) the owner owns, array of booleans to indicate NFTAirdrop/NFTRewards claim for each token ID function claimInNFTsFromMulti( address _requester, NFTCollectionClaimRequest[] calldata _nftCollectionClaimRequests, bool _withWalletRewards ) external nonReentrant onlyValidClaimSetup onlyMultiClaim { uint256 totalClaimable = _claimInNFTs( _requester, _nftCollectionClaimRequests, _withWalletRewards ); claimToken.safeTransfer(_requester, totalClaimable); } /// @notice Support both v1 and v2 delegate wallet during the v1 to v2 migration /// @dev Given _vault (cold wallet) address, verify whether _msgSender() is a permitted delegate to operate on behalf of it /// @param _vault Address to verify against _msgSender function _getRequester(address _vault) private view returns (address) { if (_vault == address(0)) return _msgSender(); bool isDelegateValid = dcV2.checkDelegateForAll( _msgSender(), _vault, "" ); if (isDelegateValid) return _vault; isDelegateValid = dc.checkDelegateForAll(_msgSender(), _vault); if (!isDelegateValid) revert InvalidDelegate(); return _vault; } function _claim( address _requester, ClaimType[] memory _claimTypes ) internal returns (uint128 amountClaimed) { amountClaimed = _executeClaim(_requester, _claimTypes); if (amountClaimed == 0) revert NoClaimableToken(); emit UserClaimed(_requester, amountClaimed, block.timestamp); } function _claimInNFTs( address _requester, NFTCollectionClaimRequest[] calldata _nftCollectionClaimRequests, bool _withWalletRewards ) internal returns (uint128 amountClaimed) { amountClaimed = _executeClaimInNFTs( _requester, _nftCollectionClaimRequests ); if (_withWalletRewards) { ClaimData storage userClaimData = usersClaimData[_requester][ ClaimType.WalletRewards ]; uint128 claimable = _calculateClaimable( userClaimData, ClaimType.WalletRewards ); if (claimable > 0) { /// @dev assume no overflow as the max amountClaimed amount won't exceed uint128 throughout the whole life cycle unchecked { userClaimData.claimed += claimable; amountClaimed += claimable; } } } if (amountClaimed == 0) revert NoClaimableToken(); emit ClaimedInNFTs(_requester, amountClaimed, block.timestamp); } /// @dev Update `claimed` in usersClaimData for the given ClaimTypes /// @param _requester Address of the claimer /// @param _claimTypes Array of ClaimType to claim /// @return totalClaimable Amount of total claimable calculated from the given ClaimTypes function _executeClaim( address _requester, ClaimType[] memory _claimTypes ) private returns (uint128 totalClaimable) { for (uint256 i; i < _claimTypes.length; i++) { ClaimData storage userClaimData = usersClaimData[_requester][ _claimTypes[i] ]; uint128 claimable = _calculateClaimable( userClaimData, _claimTypes[i] ); if (claimable > 0) { /// @dev assume no overflow as the max totalClaimable amount won't exceed uint128 throughout the whole life cycle unchecked { userClaimData.claimed += claimable; totalClaimable += claimable; } } } } /// @dev Update `airdropClaimed` AND/OR `rewardsClaimed` based on the booleans passed in nftUsersClaimData for the given NFT Collection ID and token ID(s) /// @param _requester Address of the claimer /// @param _nftCollectionClaimRequests Array of NFTCollectionClaimRequest that consists collection ID of the NFT, token ID(s) the owner owns, array of booleans to indicate NFTAirdrop/NFTRewards claim for each token ID /// @return totalNFTClaimable Amount of total NFT claimable calculated from the given NFT Collection ID and token ID(s) function _executeClaimInNFTs( address _requester, NFTCollectionClaimRequest[] calldata _nftCollectionClaimRequests ) private returns (uint128 totalNFTClaimable) { for (uint256 i; i < _nftCollectionClaimRequests.length; ) { uint256[] calldata tokenIds = _nftCollectionClaimRequests[i] .tokenIds; bool[] calldata withNFTAirdropList = _nftCollectionClaimRequests[i] .withNFTAirdropList; bool[] calldata withNFTRewardsList = _nftCollectionClaimRequests[i] .withNFTRewardsList; uint256 len = tokenIds.length; if ( len != withNFTAirdropList.length || len != withNFTRewardsList.length ) { revert MismatchedArrays(); } uint256 collectionId = _nftCollectionClaimRequests[i].collectionId; for (uint256 j; j < len; ) { uint128 claimable; if (withNFTAirdropList[j]) { claimable = _verifyNFTClaim( _requester, collectionId, tokenIds[j] ); if (claimable > 0) { /// @dev assume no overflow as the max claimable amount won't exceed uint128 unchecked { nftUsersClaimData[collectionId][tokenIds[j]] .airdropClaimed += claimable; totalNFTClaimable += claimable; } } } if (withNFTRewardsList[j]) { claimable = _verifyNFTRewardClaim( _requester, collectionId, tokenIds[j] ); if (claimable > 0) { unchecked { nftUsersClaimData[collectionId][tokenIds[j]] .rewardsClaimed += claimable; totalNFTClaimable += claimable; } } } unchecked { ++j; } } unchecked { ++i; } } } /// @dev Verify if the caller owns the NFT, and return the correct amount of claimable token /// @param _requester Address of the claimer /// @param _collectionId Collection ID of the NFT /// @param _tokenId Token ID that the owner owns function _verifyNFTClaim( address _requester, uint256 _collectionId, uint256 _tokenId ) private view onlyValidCollectionId(_collectionId) returns (uint128) { if (nftCollections[_collectionId].ownerOf(_tokenId) != _requester) revert Unauthorized(); return _calculateNFTClaimable(nftUsersClaimData[_collectionId][_tokenId]); } function _verifyNFTRewardClaim( address _requester, uint256 _collectionId, uint256 _tokenId ) private view onlyValidCollectionId(_collectionId) returns (uint128) { if (nftCollections[_collectionId].ownerOf(_tokenId) != _requester) revert Unauthorized(); return _calculateNFTRewardsClaimable( nftUsersClaimData[_collectionId][_tokenId] ); } function _calculateClaimable( ClaimData memory _userClaimdata, ClaimType _claimType ) private view returns (uint128) { uint128 totalClaimable = _userClaimdata.totalClaimable; uint128 claimed = _userClaimdata.claimed; if (totalClaimable == 0 || claimed >= totalClaimable) return 0; // for WalletRewards claim will expire after _MAX_CLAIM_PERIOD has passed since claim starts if (_claimType == ClaimType.WalletRewards) { if (block.timestamp > claimStartDate + _MAX_CLAIM_PERIOD) { return 0; } return totalClaimable; } ClaimSchedule memory claimSchedule = claimScheduleOf[_claimType]; uint256 numOfLockUpBPs = claimSchedule.lockUpBPs.length; if (numOfLockUpBPs == 0) revert InvalidClaimSetup(); // claim will expire after the allocated $WELL are fully vested for _MAX_CLAIM_PERIOD if ( block.timestamp > claimStartDate + _LOCK_UP_SLOT * numOfLockUpBPs * 1 days + _MAX_CLAIM_PERIOD ) { return 0; } uint256 daysElapsed = (block.timestamp - claimStartDate) / 1 days; // count the cycles passed to distinguish which cycle's 180 days is elapsed uint256 cyclesPassed = daysElapsed / _LOCK_UP_SLOT; // PrivatePresale first cycle unlocked amount locks up until the start of next cycle and allows instant claim if ( _claimType == ClaimType.SeedPresale && daysElapsed < _LOCK_UP_SLOT ) return 0; // Contributors has a different number of cycles, other claim types share the same one bool isClaimTypeFullyVested = _claimType != ClaimType.Contributors && cyclesPassed >= _END_CYCLE; bool isContributorFullyVested = _claimType == ClaimType.Contributors && cyclesPassed >= _END_CYCLE_CONTRIBUTORS; if (isClaimTypeFullyVested || isContributorFullyVested) { return _calculateRemainClaimable(totalClaimable, claimed); } // cyclesPassed + 1 because we want to calculate the current cycle's (with < 180 days elapsed) unlocked amount return _calculateRemainClaimable( _calculateUnlockedAmount( claimSchedule, numOfLockUpBPs, totalClaimable, cyclesPassed + 1, daysElapsed ), claimed ); } function _calculateNFTClaimable( NFTClaimData memory _nftUserClaimdata ) private view returns (uint128) { uint256 currentNFTUnlockedBP_ = currentNFTUnlockedBP; // console.log("BP"); // console.log(currentNFTUnlockedBP_); if (currentNFTUnlockedBP_ == 0) return 0; // claim will expire after the allocated $WELL are fully vested for _MAX_CLAIM_PERIOD if (currentNFTUnlockedBP_ == _BASIS_POINTS) { if ( block.timestamp > currentNFTUnlockTimestamp + _MAX_CLAIM_PERIOD ) { return 0; } } uint128 airdropTotalClaimable = _nftUserClaimdata.airdropTotalClaimable; uint128 airdropClaimed = _nftUserClaimdata.airdropClaimed; if ( airdropTotalClaimable == 0 || airdropClaimed >= airdropTotalClaimable ) return 0; return _calculateRemainClaimable( _calculateNFTUnlockedAmount(airdropTotalClaimable), airdropClaimed ); } function _calculateNFTRewardsClaimable( NFTClaimData memory _nftUserClaimdata ) private view returns (uint128) { uint128 rewardsTotalClaimable = _nftUserClaimdata.rewardsTotalClaimable; uint128 rewardsClaimed = _nftUserClaimdata.rewardsClaimed; if ( rewardsTotalClaimable == 0 || rewardsClaimed >= rewardsTotalClaimable ) return 0; // claim will expire after the allocated $WELL are fully vested for _MAX_CLAIM_PERIOD if (block.timestamp > claimStartDate + _MAX_CLAIM_PERIOD) { return 0; } return _calculateRemainClaimable(rewardsTotalClaimable, rewardsClaimed); } function _calculateRemainClaimable( uint128 _totalClaimable, uint128 _claimed ) private pure returns (uint128) { /// @dev assume no underflow because we already return zero when _claimed is >= _totalClaimable unchecked { return _totalClaimable <= _claimed ? 0 : _totalClaimable - _claimed; } } function _calculateUnlockedAmount( ClaimSchedule memory _claimSchedule, uint256 _numOfLockUpBPs, uint128 _totalClaimable, uint256 _currentCycle, uint256 _daysElapsed ) private pure returns (uint128) { if (_currentCycle < _claimSchedule.startCycle) return 0; if (_currentCycle > _numOfLockUpBPs) return _totalClaimable; // _currentCycle == _numOfLockUpBPs means _currentCycle is the last one uint256 currentUnlockedBP = _currentCycle == _numOfLockUpBPs ? _BASIS_POINTS : _claimSchedule.lockUpBPs[_currentCycle]; return _calculateUnlockedAmountByDaysElapsed( _totalClaimable, _claimSchedule.lockUpBPs[_currentCycle - 1], currentUnlockedBP, _daysElapsed % _LOCK_UP_SLOT ); } function _calculateUnlockedAmountByDaysElapsed( uint128 _totalClaimable, uint256 _previousUnlockedBP, uint256 _currentUnlockedBP, uint256 _daysElapsedForCurrentCycle ) private pure returns (uint128) { if (_daysElapsedForCurrentCycle == 0) { return _toUint128( (_totalClaimable * _previousUnlockedBP) / _BASIS_POINTS ); } return _toUint128( (_totalClaimable * _previousUnlockedBP) / _BASIS_POINTS + (_totalClaimable * (_currentUnlockedBP - _previousUnlockedBP) * _daysElapsedForCurrentCycle) / _BASIS_POINTS / _LOCK_UP_SLOT ); } function _calculateNFTUnlockedAmount( uint128 _totalClaimable ) private view returns (uint128) { return block.timestamp < currentNFTUnlockTimestamp ? _toUint128( (_totalClaimable * previousNFTUnlockedBP) / _BASIS_POINTS ) : _toUint128( (_totalClaimable * currentNFTUnlockedBP) / _BASIS_POINTS ); } function _toUint128(uint256 value) private pure returns (uint128) { if (value >= 1 << 128) revert Uint128Overflow(); return uint128(value); } // ==================== // Validation Modifiers // ==================== modifier onlyUpgrader() { if (_msgSender() != upgrader) revert Unauthorized(); _; } modifier onlyMultiClaim() { if (_msgSender() != multiClaim) revert Unauthorized(); _; } modifier onlyClaimNotOpen() { if (claimActive) revert ClaimNotClosed(); _; } modifier onlyValidClaimSetup() { if ( !claimActive || claimStartDate == 0 || block.timestamp < claimStartDate ) revert ClaimNotAvailable(); if (address(claimToken) == address(0)) revert ClaimTokenZeroAddress(); _; } modifier onlyValidCollectionId(uint256 _collectionId) { if (_collectionId >= nftCollections.length) revert InvalidCollectionId(); _; } // ============== // Claimable Settings // ============== // ============ Signer System ============ function setupSigner( address _signer, string calldata _signatureActionPrefix ) external onlyOwner { require(_signer != address(0), "_signer should not be 0"); signer = _signer; signatureActionPrefix = _signatureActionPrefix; emit SignerUpdated(_signer, _signatureActionPrefix); } function checkValidity( bytes calldata signature, string memory action ) public view returns (bool) { require( ECDSA.recover( MessageHashUtils.toEthSignedMessageHash( keccak256(abi.encodePacked(msg.sender, action)) ), signature ) == signer, "invalid signature" ); require( usedSignatures[signature] == false, "signature cannot be reused" ); return true; } function checkValidityWithoutSender( bytes calldata signature, string memory action ) public view returns (bool) { require( ECDSA.recover( MessageHashUtils.toEthSignedMessageHash( keccak256(abi.encodePacked(action)) ), signature ) == signer, "invalid signature" ); require( usedSignatures[signature] == false, "signature cannot be reused" ); return true; } function getChainID() public view returns (uint256) { uint256 id; assembly { id := chainid() } return id; } function setClaimableByUser( address _vault, uint128 _claimable, ClaimType _claimType, bytes calldata signature ) public { address requester = _getRequester(_vault); require( usersClaimData[requester][_claimType].totalClaimable == 0, "Claimable already set" ); string memory action = string.concat( signatureActionPrefix, "-scbu-", Strings.toString(_claimable), "-", Strings.toString(uint256(_claimType)), "-", Strings.toString(getChainID()), "-", Strings.toString((uint160(address(this)))) ); checkValidity(signature, action); usedSignatures[signature] = true; usersClaimData[requester][_claimType].totalClaimable = _claimable; } function setClaimableByUserMultiple( address _vault, uint128[] calldata _claimables, ClaimType[] calldata _claimTypes, bytes[] calldata signatures ) public { require(_claimables.length == _claimTypes.length && _claimables.length == signatures.length, "inconsistant input length"); for (uint256 i; i < _claimTypes.length; i++) { setClaimableByUser(_vault, _claimables[i], _claimTypes[i], signatures[i]); } } function claimAfterSetClaimableByUserMultiple( address _vault, uint128[] calldata _claimables, ClaimType[] calldata _claimTypes, bytes[] calldata signatures ) external { require(_claimables.length == _claimTypes.length && _claimables.length == signatures.length, "inconsistant input length"); setClaimableByUserMultiple(_vault, _claimables, _claimTypes, signatures); claim(_vault, _claimTypes); } function setNFTClaimablesByUser( NFTClaimable[] calldata _nftClaimables, bytes[] calldata signatures ) external { require(_nftClaimables.length == signatures.length, "inconsistant input length"); for (uint256 i; i < _nftClaimables.length; ) { uint256 collectionId = _nftClaimables[i].collectionId; uint256 tokenId = _nftClaimables[i].tokenId; uint128 airdropAmount = _nftClaimables[i].airdropTotalClaimable; uint128 rewardsAmount = _nftClaimables[i].rewardsTotalClaimable; bytes calldata signature = signatures[i]; string memory action = string.concat( signatureActionPrefix, "-sncbu-", Strings.toString(collectionId), "-", Strings.toString(tokenId), "-", Strings.toString(airdropAmount), "-", Strings.toString(rewardsAmount), "-", Strings.toString(getChainID()), "-", Strings.toString((uint160(address(this)))) ); // console.log(action); checkValidityWithoutSender(signature, action); usedSignatures[signature] = true; unchecked { ++i; } } _setNFTClaimables(_nftClaimables); } // ============ Signer System End ============ /// @dev Set `totalClaimable` in usersClaimData for claim type(s) /// @param _addresses Array of addresses eligible for the claim /// @param _claimables Array of amounts of claim token /// @param _claimTypes Array of ClaimType function setClaimables( address[] calldata _addresses, uint128[] calldata _claimables, ClaimType[] calldata _claimTypes ) external onlyOwner { uint256 len = _addresses.length; if (len != _claimables.length || len != _claimTypes.length) revert MismatchedArrays(); for (uint256 i; i < len; ) { usersClaimData[_addresses[i]][_claimTypes[i]] .totalClaimable = _claimables[i]; unchecked { ++i; } } } /// @dev Set `airdropTotalClaimable` and `rewardsTotalClaimable` in nftUsersClaimData for token ID(s) of respective collection ID /// @param _nftClaimables Array of NFTClaimable which consists of collectionId, tokenId and amount of claim token function setNFTClaimables( NFTClaimable[] calldata _nftClaimables ) external onlyOwner { _setNFTClaimables(_nftClaimables); } function _setNFTClaimables( NFTClaimable[] calldata _nftClaimables ) internal { for (uint256 i; i < _nftClaimables.length; ) { uint256 collectionId = _nftClaimables[i].collectionId; uint256 tokenId = _nftClaimables[i].tokenId; uint128 airdropAmount = _nftClaimables[i].airdropTotalClaimable; uint128 rewardsAmount = _nftClaimables[i].rewardsTotalClaimable; nftUsersClaimData[collectionId][tokenId] .airdropTotalClaimable = airdropAmount; nftUsersClaimData[collectionId][tokenId] .rewardsTotalClaimable = rewardsAmount; unchecked { ++i; } emit NFTClaimablesUpdated(collectionId, tokenId); } } /// @dev Add new unlock percentage in Basis Points(BP) for NFT holders to instant claim until _BASIS_POINTS is reached /// @param _additionalNFTUnlockedBP Additional unlocked BP, only add up the currentNFTUnlockedBP /// @param _newUnlockTimestamp Timestamp for new unlocked BP to take effect function addNFTUnlockedBPAndSetUnlockTs( uint64 _additionalNFTUnlockedBP, uint128 _newUnlockTimestamp ) external onlyOwner { uint64 currentNFTUnlockedBP_ = currentNFTUnlockedBP; uint128 currentNFTUnlockTimestamp_ = currentNFTUnlockTimestamp; if ( _additionalNFTUnlockedBP == 0 || currentNFTUnlockedBP_ + _additionalNFTUnlockedBP > _BASIS_POINTS || _newUnlockTimestamp <= currentNFTUnlockTimestamp_ ) revert InvalidClaimSetup(); previousNFTUnlockedBP = currentNFTUnlockedBP_; currentNFTUnlockTimestamp = _newUnlockTimestamp; currentNFTUnlockedBP += _additionalNFTUnlockedBP; emit NFTUnlockedBPAndUnlockTsUpdated(currentNFTUnlockedBP, currentNFTUnlockTimestamp); } /// @dev Set the unclaimedNFTRewards mapping in order to withdraw unclaimed NFTRewards after they are expired /// @param _collectionId Respective collection ID with unclaimed NFTRewards /// @param _unclaimTokenIds Array of token IDs with NFTRewards that are left unclaimed function setUnclaimedNFTRewards( uint256 _collectionId, uint128[] calldata _unclaimTokenIds ) external onlyValidCollectionId(_collectionId) onlyOwner { if (block.timestamp <= claimStartDate + _MAX_CLAIM_PERIOD) revert NFTRewardsNotExpired(); UnclaimedNFTRewards storage _unclaimedNftRewards = unclaimedNftRewards[ _collectionId ]; uint256 len = _unclaimTokenIds.length; if (len == 0 || _unclaimedNftRewards.lastTokenId > _unclaimTokenIds[0]) revert InvalidWithdrawalSetup(); uint128 totalRewardsUnclaimed; for (uint256 i; i < len; ) { // ensure the next tokenId is bigger than the prev one if (i != 0) { if (_unclaimTokenIds[i] < _unclaimTokenIds[i - 1]) revert InvalidWithdrawalSetup(); } NFTClaimData memory nftUserClaimData = nftUsersClaimData[ _collectionId ][_unclaimTokenIds[i]]; uint128 rewardsUnclaimed = nftUserClaimData.rewardsTotalClaimable - nftUserClaimData.rewardsClaimed; if (rewardsUnclaimed > 0) totalRewardsUnclaimed += rewardsUnclaimed; unchecked { ++i; } } _unclaimedNftRewards.lastTokenId = _unclaimTokenIds[len - 1]; _unclaimedNftRewards.totalUnclaimed += totalRewardsUnclaimed; } /// @dev Set `airdropTotalClaimable` in nftUsersClaimData specifically for single token ID of a newly revealed NFT /// @param _tokenId Token ID of the newly revealed NFT /// @param _additionalAirdropTotalClaimable Additional airdropTotalClaimable, only add up since a base amount will be set for unrevealed NFT function setRevealedNFTClaimable( uint256 _collectionId, uint256 _tokenId, uint128 _additionalAirdropTotalClaimable ) external onlyOwner { nftUsersClaimData[_collectionId][_tokenId] .airdropTotalClaimable += _additionalAirdropTotalClaimable; emit RevealedNFTClaimableUpdated(_collectionId, _tokenId, nftUsersClaimData[_collectionId][_tokenId].airdropTotalClaimable); } // ============== // Claim Settings // ============== /// @dev Deposit claim token to contract and start the claim, to be called ONCE only /// @param _tokenAmount Amount of claim token to be deposited /// @param _claimStartDate Unix timestamp of the claim start date function depositClaimTokenAndStartClaim( uint256 _tokenAmount, uint256 _claimStartDate ) external onlyOwner { // if (claimTokenDeposited) revert AlreadyDeposited(); if (address(claimToken) == address(0)) revert ClaimTokenZeroAddress(); if (_tokenAmount == 0) revert InvalidClaimSetup(); if (_claimStartDate == 0) revert InvalidClaimSetup(); claimToken.safeTransferFrom(_msgSender(), address(this), _tokenAmount); claimStartDate = _claimStartDate; claimActive = true; // claimTokenDeposited = true; emit ClaimTokenDepositedAndClaimStarted(_tokenAmount, _claimStartDate); } /// @dev Withdraw claim token from contract only when claim is not open /// @param _receiver Address to receive the token /// @param _amount Amount of claim token to be withdrawn function withdrawClaimToken( address _receiver, uint256 _amount ) external onlyOwner { if (address(claimToken) == address(0)) revert ClaimTokenZeroAddress(); claimToken.safeTransfer(_receiver, _amount); emit ClaimTokenWithdrawn(_receiver, _amount); } /// @dev Withdraw unclaimed NFTRewards after they are expired when _MAX_CLAIM_PERIOD has passed since claim starts, to be called ONCE only /// @param _receiver Address to receive the token function withdrawUnclaimedNFTRewards(address _receiver) external onlyOwner { if (unclaimedNFTRewardsWithdrawn) revert AlreadyWithdrawn(); if (block.timestamp <= claimStartDate + _MAX_CLAIM_PERIOD) revert NFTRewardsNotExpired(); if (_receiver == address(0)) revert InvalidWithdrawalSetup(); uint256 totalWithdrawn; for (uint256 i; i < nftCollections.length; ) { UnclaimedNFTRewards storage _unclaimedNftRewards = unclaimedNftRewards[i]; uint128 unclaimed = _unclaimedNftRewards.totalUnclaimed; if (unclaimed > 0) { claimToken.safeTransfer(_receiver, unclaimed); totalWithdrawn += unclaimed; } unchecked { ++i; } } unclaimedNFTRewardsWithdrawn = true; emit UnclaimedNFTRewardsWithdrawn(totalWithdrawn, block.timestamp); } /// @dev Set claim schedule(s) for claim type(s) /// @param _claimTypes Array of ClaimType /// @param _claimSchedules Array of ClaimSchedule for each claim type function setClaimSchedules( ClaimType[] calldata _claimTypes, ClaimSchedule[] calldata _claimSchedules ) external onlyOwner onlyClaimNotOpen { uint256 len = _claimSchedules.length; if (_claimTypes.length != len) revert MismatchedArrays(); for (uint256 i; i < len; ) { require(_claimSchedules[i].startCycle < _claimSchedules[i].lockUpBPs.length, "Start cycle should be smaller than lockUpBPs.length"); uint256[] memory lockUpBPs = _claimSchedules[i].lockUpBPs; for (uint256 j; j < lockUpBPs.length; ) { if (lockUpBPs[j] > _BASIS_POINTS) revert InvalidClaimSetup(); // ensure the accumulated lockupBP is bigger than the prev one if (j != 0) { if (lockUpBPs[j] <= lockUpBPs[j - 1]) revert InvalidClaimSetup(); } unchecked { ++j; } } claimScheduleOf[_claimTypes[i]] = _claimSchedules[i]; unchecked { ++i; } } emit ClaimSchedulesUpdated(); } /// @dev Start/stop the claim /// @param _claimActive New boolean to indicate active or not function setClaimActive(bool _claimActive) external onlyOwner { claimActive = _claimActive; emit ClaimStatusUpdated(_claimActive); } /// @dev Set the new claim start date, allow flexibility on setting as past date to unlock claim earlier /// @param _claimStartDate New date to start the claim function setClaimStartDate(uint256 _claimStartDate) external onlyOwner { claimStartDate = _claimStartDate; emit ClaimStartDateUpdated(_claimStartDate); } /// @dev Set the new MultiClaim contract address /// @param _multiClaim New MultiClaim contract address function setMultiClaimAddress(address _multiClaim) external onlyOwner { multiClaim = _multiClaim; emit MultiClaimAddressUpdated(_multiClaim); } /// @dev Set the new UUPS proxy upgrader, allow setting address(0) to disable upgradeability /// @param _upgrader New upgrader function setUpgrader(address _upgrader) external onlyOwner { if (upgraderRenounced) revert UpgraderRenounced(); upgrader = _upgrader; emit UpgraderUpdated(_upgrader); } // /// @notice Renounce the upgradibility of this contract function renounceUpgrader() external onlyOwner { if (upgraderRenounced) revert UpgraderRenounced(); upgraderRenounced = true; upgrader = address(0); emit UpgraderUpdated(address(0)); } // ======= // Getters // ======= /// @notice Get claim info of a user after claim starts /// @param _user Address of user /// @return claimableAmount Amount of claimable tokens for a user /// @return claimableExpiry Timestamp of the claim expiry date for the respective _claimType function getClaimInfo( address _user, ClaimType _claimType ) public view onlyValidClaimSetup returns (uint128 claimableAmount, uint256 claimableExpiry) { uint256 numOfLockUpBPs = claimScheduleOf[_claimType].lockUpBPs.length; claimableAmount = _calculateClaimable( usersClaimData[_user][_claimType], _claimType ); claimableExpiry = _claimType == ClaimType.WalletRewards ? claimStartDate + _MAX_CLAIM_PERIOD : claimStartDate + _LOCK_UP_SLOT * numOfLockUpBPs * 1 days + _MAX_CLAIM_PERIOD; } /// @notice Get claim info of one eligible NFT after claiming starts /// @param _collectionId Address of the eligible NFT /// @param _tokenId Token ID that the owner owns /// @return claimableAmount Amount of claimable tokens for the NFT /// @return claimableExpiry Timestamp of the claim expiry date for NFT airdrop function getClaimInfoByNFT( uint256 _collectionId, uint256 _tokenId ) public view onlyValidClaimSetup onlyValidCollectionId(_collectionId) returns (uint128 claimableAmount, uint256 claimableExpiry) { NFTClaimData memory nftUserClaimData = nftUsersClaimData[_collectionId][ _tokenId ]; claimableAmount = _calculateNFTClaimable(nftUserClaimData); claimableExpiry = currentNFTUnlockedBP == _BASIS_POINTS ? currentNFTUnlockTimestamp + _MAX_CLAIM_PERIOD : 0; } /// @notice Get rewards claim info of one eligible NFT after claiming starts /// @param _collectionId Address of the eligible NFT /// @param _tokenId Token ID that the owner owns /// @return claimableAmount Amount of claimable tokens for the NFT /// @return claimableExpiry Timestamp of the claim expiry date for NFT rewards function getRewardsClaimInfoByNFT( uint256 _collectionId, uint256 _tokenId ) public view onlyValidClaimSetup onlyValidCollectionId(_collectionId) returns (uint128 claimableAmount, uint256 claimableExpiry) { NFTClaimData memory nftUserClaimData = nftUsersClaimData[_collectionId][ _tokenId ]; claimableAmount = _calculateNFTRewardsClaimable(nftUserClaimData); claimableExpiry = claimStartDate + _MAX_CLAIM_PERIOD; } /// @notice Get total amounts of claimable tokens of multiple tokenIds in one eligible collection after claiming starts /// @param _collectionId ID of NFT collection /// @param _tokenIds Array of all token IDs the owner owns in that collection function getTotalClaimableAmountsByNFTs( uint256 _collectionId, uint256[] calldata _tokenIds ) public view returns (uint128 totalClaimable) { for (uint256 i; i < _tokenIds.length; i++) { (uint128 claimable, ) = getClaimInfoByNFT( _collectionId, _tokenIds[i] ); if (claimable == 0) continue; totalClaimable += claimable; } } /// @notice Get user claim data of multiple tokenIds in multiple eligible collections /// @param _nftCollectionsInfo Array of NFTCollectionInfo with collectionId and tokenId(s) /// @return collectionClaimInfo Array of CollectionClaimData that includes claim data for each tokenId of respective collection function getUserClaimDataByCollections( NFTCollectionInfo[] calldata _nftCollectionsInfo ) public view returns (CollectionClaimData[] memory collectionClaimInfo) { uint256 numOfTokenIds; uint256 len = _nftCollectionsInfo.length; for (uint256 i = 0; i < len; i++) { numOfTokenIds += _nftCollectionsInfo[i].tokenIds.length; } collectionClaimInfo = new CollectionClaimData[](numOfTokenIds); uint256 activeId = 0; for (uint256 i; i < len; i++) { uint256 collectionId = _nftCollectionsInfo[i].collectionId; uint256[] memory tokenIds = _nftCollectionsInfo[i].tokenIds; for (uint256 j; j < tokenIds.length; j++) { ( uint128 airdropClaimable, uint256 airdropClaimableExpiry ) = getClaimInfoByNFT(collectionId, tokenIds[j]); ( uint128 rewardsClaimable, uint256 rewardClaimableExpiry ) = getRewardsClaimInfoByNFT(collectionId, tokenIds[j]); collectionClaimInfo[activeId++] = CollectionClaimData( collectionId, tokenIds[j], airdropClaimable, airdropClaimableExpiry, nftUsersClaimData[collectionId][tokenIds[j]] .airdropTotalClaimable, nftUsersClaimData[collectionId][tokenIds[j]].airdropClaimed, rewardsClaimable, rewardClaimableExpiry, nftUsersClaimData[collectionId][tokenIds[j]] .rewardsTotalClaimable, nftUsersClaimData[collectionId][tokenIds[j]].rewardsClaimed ); } } } /// @notice Get the claim schedule of a certain claim type function getClaimSchedule( ClaimType _claimType ) public view returns (ClaimSchedule memory) { return claimScheduleOf[_claimType]; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * The initial owner is set to the address provided by the deployer. This can * later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable { /// @custom:storage-location erc7201:openzeppelin.storage.Ownable struct OwnableStorage { address _owner; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300; function _getOwnableStorage() private pure returns (OwnableStorage storage $) { assembly { $.slot := OwnableStorageLocation } } /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ function __Ownable_init(address initialOwner) internal onlyInitializing { __Ownable_init_unchained(initialOwner); } function __Ownable_init_unchained(address initialOwner) internal onlyInitializing { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { OwnableStorage storage $ = _getOwnableStorage(); return $._owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { OwnableStorage storage $ = _getOwnableStorage(); address oldOwner = $._owner; $._owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.20; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Storage of the initializable contract. * * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions * when using with upgradeable contracts. * * @custom:storage-location erc7201:openzeppelin.storage.Initializable */ struct InitializableStorage { /** * @dev Indicates that the contract has been initialized. */ uint64 _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool _initializing; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00; /** * @dev The contract is already initialized. */ error InvalidInitialization(); /** * @dev The contract is not initializing. */ error NotInitializing(); /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint64 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in * production. * * Emits an {Initialized} event. */ modifier initializer() { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); // Cache values to avoid duplicated sloads bool isTopLevelCall = !$._initializing; uint64 initialized = $._initialized; // Allowed calls: // - initialSetup: the contract is not in the initializing state and no previous version was // initialized // - construction: the contract is initialized at version 1 (no reininitialization) and the // current contract is just being deployed bool initialSetup = initialized == 0 && isTopLevelCall; bool construction = initialized == 1 && address(this).code.length == 0; if (!initialSetup && !construction) { revert InvalidInitialization(); } $._initialized = 1; if (isTopLevelCall) { $._initializing = true; } _; if (isTopLevelCall) { $._initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint64 version) { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing || $._initialized >= version) { revert InvalidInitialization(); } $._initialized = version; $._initializing = true; _; $._initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { _checkInitializing(); _; } /** * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}. */ function _checkInitializing() internal view virtual { if (!_isInitializing()) { revert NotInitializing(); } } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing) { revert InvalidInitialization(); } if ($._initialized != type(uint64).max) { $._initialized = type(uint64).max; emit Initialized(type(uint64).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint64) { return _getInitializableStorage()._initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _getInitializableStorage()._initializing; } /** * @dev Returns a pointer to the storage namespace. */ // solhint-disable-next-line var-name-mixedcase function _getInitializableStorage() private pure returns (InitializableStorage storage $) { assembly { $.slot := INITIALIZABLE_STORAGE } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/UUPSUpgradeable.sol) pragma solidity ^0.8.20; import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol"; import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol"; import {Initializable} from "./Initializable.sol"; /** * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy. * * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing * `UUPSUpgradeable` with a custom implementation of upgrades. * * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism. */ abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable { /// @custom:oz-upgrades-unsafe-allow state-variable-immutable address private immutable __self = address(this); /** * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)` * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called, * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string. * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function * during an upgrade. */ string public constant UPGRADE_INTERFACE_VERSION = "5.0.0"; /** * @dev The call is from an unauthorized context. */ error UUPSUnauthorizedCallContext(); /** * @dev The storage `slot` is unsupported as a UUID. */ error UUPSUnsupportedProxiableUUID(bytes32 slot); /** * @dev Check that the execution is being performed through a delegatecall call and that the execution context is * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to * fail. */ modifier onlyProxy() { _checkProxy(); _; } /** * @dev Check that the execution is not being performed through a delegate call. This allows a function to be * callable on the implementing contract but not through proxies. */ modifier notDelegated() { _checkNotDelegated(); _; } function __UUPSUpgradeable_init() internal onlyInitializing { } function __UUPSUpgradeable_init_unchained() internal onlyInitializing { } /** * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the * implementation. It is used to validate the implementation's compatibility when performing an upgrade. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier. */ function proxiableUUID() external view virtual notDelegated returns (bytes32) { return ERC1967Utils.IMPLEMENTATION_SLOT; } /** * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call * encoded in `data`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. * * @custom:oz-upgrades-unsafe-allow-reachable delegatecall */ function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, data); } /** * @dev Reverts if the execution is not performed via delegatecall or the execution * context is not of a proxy with an ERC1967-compliant implementation pointing to self. * See {_onlyProxy}. */ function _checkProxy() internal view virtual { if ( address(this) == __self || // Must be called through delegatecall ERC1967Utils.getImplementation() != __self // Must be called through an active proxy ) { revert UUPSUnauthorizedCallContext(); } } /** * @dev Reverts if the execution is performed via delegatecall. * See {notDelegated}. */ function _checkNotDelegated() internal view virtual { if (address(this) != __self) { // Must not be called through delegatecall revert UUPSUnauthorizedCallContext(); } } /** * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by * {upgradeToAndCall}. * * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. * * ```solidity * function _authorizeUpgrade(address) internal onlyOwner {} * ``` */ function _authorizeUpgrade(address newImplementation) internal virtual; /** * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call. * * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value * is expected to be the implementation slot in ERC1967. * * Emits an {IERC1967-Upgraded} event. */ function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private { try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) { revert UUPSUnsupportedProxiableUUID(slot); } ERC1967Utils.upgradeToAndCall(newImplementation, data); } catch { // The implementation is not UUPS revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuardUpgradeable is Initializable { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant NOT_ENTERED = 1; uint256 private constant ENTERED = 2; /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard struct ReentrancyGuardStorage { uint256 _status; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00; function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) { assembly { $.slot := ReentrancyGuardStorageLocation } } /** * @dev Unauthorized reentrant call. */ error ReentrancyGuardReentrantCall(); function __ReentrancyGuard_init() internal onlyInitializing { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal onlyInitializing { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); $._status = NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); // On the first call to nonReentrant, _status will be NOT_ENTERED if ($._status == ENTERED) { revert ReentrancyGuardReentrantCall(); } // Any calls to nonReentrant after this point will fail $._status = ENTERED; } function _nonReentrantAfter() private { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) $._status = NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage(); return $._status == ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.20; /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.20; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {UpgradeableBeacon} will check that this address is a contract. */ function implementation() external view returns (address); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol) pragma solidity ^0.8.20; import {IBeacon} from "../beacon/IBeacon.sol"; import {Address} from "../../utils/Address.sol"; import {StorageSlot} from "../../utils/StorageSlot.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. */ library ERC1967Utils { // We re-declare ERC-1967 events here because they can't be used directly from IERC1967. // This will be fixed in Solidity 0.8.21. At that point we should remove these events. /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Emitted when the beacon is changed. */ event BeaconUpgraded(address indexed beacon); /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev The `implementation` of the proxy is invalid. */ error ERC1967InvalidImplementation(address implementation); /** * @dev The `admin` of the proxy is invalid. */ error ERC1967InvalidAdmin(address admin); /** * @dev The `beacon` of the proxy is invalid. */ error ERC1967InvalidBeacon(address beacon); /** * @dev An upgrade function sees `msg.value > 0` that may be lost. */ error ERC1967NonPayable(); /** * @dev Returns the current implementation address. */ function getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { if (newImplementation.code.length == 0) { revert ERC1967InvalidImplementation(newImplementation); } StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Performs implementation upgrade with additional setup call if data is nonempty. * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected * to avoid stuck value in the contract. * * Emits an {IERC1967-Upgraded} event. */ function upgradeToAndCall(address newImplementation, bytes memory data) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); if (data.length > 0) { Address.functionDelegateCall(newImplementation, data); } else { _checkNonPayable(); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Returns the current admin. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103` */ function getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { if (newAdmin == address(0)) { revert ERC1967InvalidAdmin(address(0)); } StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {IERC1967-AdminChanged} event. */ function changeAdmin(address newAdmin) internal { emit AdminChanged(getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Returns the current beacon. */ function getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { if (newBeacon.code.length == 0) { revert ERC1967InvalidBeacon(newBeacon); } StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon; address beaconImplementation = IBeacon(newBeacon).implementation(); if (beaconImplementation.code.length == 0) { revert ERC1967InvalidImplementation(beaconImplementation); } } /** * @dev Change the beacon and trigger a setup call if data is nonempty. * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected * to avoid stuck value in the contract. * * Emits an {IERC1967-BeaconUpgraded} event. * * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for * efficiency. */ function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } else { _checkNonPayable(); } } /** * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract * if an upgrade doesn't perform an initialization call. */ function _checkNonPayable() private { if (msg.value > 0) { revert ERC1967NonPayable(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.20; /** * @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. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ 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]. * * CAUTION: See Security Considerations above. */ 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @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 value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 value) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets a `value` amount of tokens as the allowance of `spender` over the * caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 value) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; import {IERC20Permit} from "../extensions/IERC20Permit.sol"; import {Address} from "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; /** * @dev An operation with an ERC20 token failed. */ error SafeERC20FailedOperation(address token); /** * @dev Indicates a failed `decreaseAllowance` request. */ error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease); /** * @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 `requestedDecrease`. If `token` returns no * value, non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal { unchecked { uint256 currentAllowance = token.allowance(address(this), spender); if (currentAllowance < requestedDecrease) { revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease); } forceApprove(token, spender, currentAllowance - requestedDecrease); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ 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 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); if (returndata.length != 0 && !abi.decode(returndata, (bool))) { revert SafeERC20FailedOperation(address(token)); } } /** * @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; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or * {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the address zero. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.20; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS } /** * @dev The signature derives the `address(0)`. */ error ECDSAInvalidSignature(); /** * @dev The signature has an invalid length. */ error ECDSAInvalidSignatureLength(uint256 length); /** * @dev The signature has an S value that is in the upper half order. */ error ECDSAInvalidSignatureS(bytes32 s); /** * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not * return address(0) without also returning an error description. Errors are documented using an enum (error type) * and a bytes32 providing additional information about the error. * * If no error is returned, then the address can be used for verification purposes. * * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length)); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature); _throwError(error, errorArg); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] */ function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) { unchecked { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); // We do not check for an overflow here since the shift operation results in 0 or 1. uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. */ function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs); _throwError(error, errorArg); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError, bytes32) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS, s); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature, bytes32(0)); } return (signer, RecoverError.NoError, bytes32(0)); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) { (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s); _throwError(error, errorArg); return recovered; } /** * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided. */ function _throwError(RecoverError error, bytes32 errorArg) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert ECDSAInvalidSignature(); } else if (error == RecoverError.InvalidSignatureLength) { revert ECDSAInvalidSignatureLength(uint256(errorArg)); } else if (error == RecoverError.InvalidSignatureS) { revert ECDSAInvalidSignatureS(errorArg); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol) pragma solidity ^0.8.20; import {Strings} from "../Strings.sol"; /** * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing. * * The library provides methods for generating a hash of a message that conforms to the * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712] * specifications. */ library MessageHashUtils { /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing a bytes32 `messageHash` with * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with * keccak256, although any bytes32 value can be safely used because the final digest will * be re-hashed. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20) } } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x45` (`personal_sign` messages). * * The digest is calculated by prefixing an arbitrary `message` with * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method. * * See {ECDSA-recover}. */ function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) { return keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message)); } /** * @dev Returns the keccak256 digest of an EIP-191 signed data with version * `0x00` (data with intended validator). * * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended * `validator` address. Then hashing the result. * * See {ECDSA-recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked(hex"19_00", validator, data)); } /** * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`). * * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with * `\x19\x01` and hashing the result. It corresponds to the hash signed by the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712. * * See {ECDSA-recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, hex"19_01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) digest := keccak256(ptr, 0x42) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.20; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = HEX_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal * representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: CC0-1.0 pragma solidity >=0.8.13; /** * @title IDelegateRegistry * @custom:version 2.0 * @custom:author foobar (0xfoobar) * @notice A standalone immutable registry storing delegated permissions from one address to another */ interface IDelegateRegistry { /// @notice Delegation type, NONE is used when a delegation does not exist or is revoked enum DelegationType { NONE, ALL, CONTRACT, ERC721, ERC20, ERC1155 } /// @notice Struct for returning delegations struct Delegation { DelegationType type_; address to; address from; bytes32 rights; address contract_; uint256 tokenId; uint256 amount; } /// @notice Emitted when an address delegates or revokes rights for their entire wallet event DelegateAll(address indexed from, address indexed to, bytes32 rights, bool enable); /// @notice Emitted when an address delegates or revokes rights for a contract address event DelegateContract( address indexed from, address indexed to, address indexed contract_, bytes32 rights, bool enable ); /// @notice Emitted when an address delegates or revokes rights for an ERC721 tokenId event DelegateERC721( address indexed from, address indexed to, address indexed contract_, uint256 tokenId, bytes32 rights, bool enable ); /// @notice Emitted when an address delegates or revokes rights for an amount of ERC20 tokens event DelegateERC20( address indexed from, address indexed to, address indexed contract_, bytes32 rights, uint256 amount ); /// @notice Emitted when an address delegates or revokes rights for an amount of an ERC1155 tokenId event DelegateERC1155( address indexed from, address indexed to, address indexed contract_, uint256 tokenId, bytes32 rights, uint256 amount ); /// @notice Thrown if multicall calldata is malformed error MulticallFailed(); /** * ----------- WRITE ----------- */ /** * @notice Call multiple functions in the current contract and return the data from all of them if they all succeed * @param data The encoded function data for each of the calls to make to this contract * @return results The results from each of the calls passed in via data */ function multicall(bytes[] calldata data) external payable returns (bytes[] memory results); /** * @notice Allow the delegate to act on behalf of `msg.sender` for all contracts * @param to The address to act as delegate * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights * @param enable Whether to enable or disable this delegation, true delegates and false revokes * @return delegationHash The unique identifier of the delegation */ function delegateAll(address to, bytes32 rights, bool enable) external payable returns (bytes32 delegationHash); /** * @notice Allow the delegate to act on behalf of `msg.sender` for a specific contract * @param to The address to act as delegate * @param contract_ The contract whose rights are being delegated * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights * @param enable Whether to enable or disable this delegation, true delegates and false revokes * @return delegationHash The unique identifier of the delegation */ function delegateContract(address to, address contract_, bytes32 rights, bool enable) external payable returns (bytes32 delegationHash); /** * @notice Allow the delegate to act on behalf of `msg.sender` for a specific ERC721 token * @param to The address to act as delegate * @param contract_ The contract whose rights are being delegated * @param tokenId The token id to delegate * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights * @param enable Whether to enable or disable this delegation, true delegates and false revokes * @return delegationHash The unique identifier of the delegation */ function delegateERC721(address to, address contract_, uint256 tokenId, bytes32 rights, bool enable) external payable returns (bytes32 delegationHash); /** * @notice Allow the delegate to act on behalf of `msg.sender` for a specific amount of ERC20 tokens * @dev The actual amount is not encoded in the hash, just the existence of a amount (since it is an upper bound) * @param to The address to act as delegate * @param contract_ The address for the fungible token contract * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights * @param amount The amount to delegate, > 0 delegates and 0 revokes * @return delegationHash The unique identifier of the delegation */ function delegateERC20(address to, address contract_, bytes32 rights, uint256 amount) external payable returns (bytes32 delegationHash); /** * @notice Allow the delegate to act on behalf of `msg.sender` for a specific amount of ERC1155 tokens * @dev The actual amount is not encoded in the hash, just the existence of a amount (since it is an upper bound) * @param to The address to act as delegate * @param contract_ The address of the contract that holds the token * @param tokenId The token id to delegate * @param rights Specific subdelegation rights granted to the delegate, pass an empty bytestring to encompass all rights * @param amount The amount of that token id to delegate, > 0 delegates and 0 revokes * @return delegationHash The unique identifier of the delegation */ function delegateERC1155(address to, address contract_, uint256 tokenId, bytes32 rights, uint256 amount) external payable returns (bytes32 delegationHash); /** * ----------- CHECKS ----------- */ /** * @notice Check if `to` is a delegate of `from` for the entire wallet * @param to The potential delegate address * @param from The potential address who delegated rights * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only * @return valid Whether delegate is granted to act on the from's behalf */ function checkDelegateForAll(address to, address from, bytes32 rights) external view returns (bool); /** * @notice Check if `to` is a delegate of `from` for the specified `contract_` or the entire wallet * @param to The delegated address to check * @param contract_ The specific contract address being checked * @param from The cold wallet who issued the delegation * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only * @return valid Whether delegate is granted to act on from's behalf for entire wallet or that specific contract */ function checkDelegateForContract(address to, address from, address contract_, bytes32 rights) external view returns (bool); /** * @notice Check if `to` is a delegate of `from` for the specific `contract` and `tokenId`, the entire `contract_`, or the entire wallet * @param to The delegated address to check * @param contract_ The specific contract address being checked * @param tokenId The token id for the token to delegating * @param from The wallet that issued the delegation * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only * @return valid Whether delegate is granted to act on from's behalf for entire wallet, that contract, or that specific tokenId */ function checkDelegateForERC721(address to, address from, address contract_, uint256 tokenId, bytes32 rights) external view returns (bool); /** * @notice Returns the amount of ERC20 tokens the delegate is granted rights to act on the behalf of * @param to The delegated address to check * @param contract_ The address of the token contract * @param from The cold wallet who issued the delegation * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only * @return balance The delegated balance, which will be 0 if the delegation does not exist */ function checkDelegateForERC20(address to, address from, address contract_, bytes32 rights) external view returns (uint256); /** * @notice Returns the amount of a ERC1155 tokens the delegate is granted rights to act on the behalf of * @param to The delegated address to check * @param contract_ The address of the token contract * @param tokenId The token id to check the delegated amount of * @param from The cold wallet who issued the delegation * @param rights Specific rights to check for, pass the zero value to ignore subdelegations and check full delegations only * @return balance The delegated balance, which will be 0 if the delegation does not exist */ function checkDelegateForERC1155(address to, address from, address contract_, uint256 tokenId, bytes32 rights) external view returns (uint256); /** * ----------- ENUMERATIONS ----------- */ /** * @notice Returns all enabled delegations a given delegate has received * @param to The address to retrieve delegations for * @return delegations Array of Delegation structs */ function getIncomingDelegations(address to) external view returns (Delegation[] memory delegations); /** * @notice Returns all enabled delegations an address has given out * @param from The address to retrieve delegations for * @return delegations Array of Delegation structs */ function getOutgoingDelegations(address from) external view returns (Delegation[] memory delegations); /** * @notice Returns all hashes associated with enabled delegations an address has received * @param to The address to retrieve incoming delegation hashes for * @return delegationHashes Array of delegation hashes */ function getIncomingDelegationHashes(address to) external view returns (bytes32[] memory delegationHashes); /** * @notice Returns all hashes associated with enabled delegations an address has given out * @param from The address to retrieve outgoing delegation hashes for * @return delegationHashes Array of delegation hashes */ function getOutgoingDelegationHashes(address from) external view returns (bytes32[] memory delegationHashes); /** * @notice Returns the delegations for a given array of delegation hashes * @param delegationHashes is an array of hashes that correspond to delegations * @return delegations Array of Delegation structs, return empty structs for nonexistent or revoked delegations */ function getDelegationsFromHashes(bytes32[] calldata delegationHashes) external view returns (Delegation[] memory delegations); /** * ----------- STORAGE ACCESS ----------- */ /** * @notice Allows external contracts to read arbitrary storage slots */ function readSlot(bytes32 location) external view returns (bytes32); /** * @notice Allows external contracts to read an arbitrary array of storage slots */ function readSlots(bytes32[] calldata locations) external view returns (bytes32[] memory); }
// SPDX-License-Identifier: CC0-1.0 pragma solidity ^0.8.17; /** * @title An immutable registry contract to be deployed as a standalone primitive * @dev See EIP-5639, new project launches can read previous cold wallet -> hot wallet delegations * from here and integrate those permissions into their flow */ interface IDelegationRegistry { /// @notice Delegation type enum DelegationType { NONE, ALL, CONTRACT, TOKEN } /// @notice Info about a single delegation, used for onchain enumeration struct DelegationInfo { DelegationType type_; address vault; address delegate; address contract_; uint256 tokenId; } /// @notice Info about a single contract-level delegation struct ContractDelegation { address contract_; address delegate; } /// @notice Info about a single token-level delegation struct TokenDelegation { address contract_; uint256 tokenId; address delegate; } /// @notice Emitted when a user delegates their entire wallet event DelegateForAll(address vault, address delegate, bool value); /// @notice Emitted when a user delegates a specific contract event DelegateForContract(address vault, address delegate, address contract_, bool value); /// @notice Emitted when a user delegates a specific token event DelegateForToken(address vault, address delegate, address contract_, uint256 tokenId, bool value); /// @notice Emitted when a user revokes all delegations event RevokeAllDelegates(address vault); /// @notice Emitted when a user revoes all delegations for a given delegate event RevokeDelegate(address vault, address delegate); /** * ----------- WRITE ----------- */ /** * @notice Allow the delegate to act on your behalf for all contracts * @param delegate The hotwallet to act on your behalf * @param value Whether to enable or disable delegation for this address, true for setting and false for revoking */ function delegateForAll(address delegate, bool value) external; /** * @notice Allow the delegate to act on your behalf for a specific contract * @param delegate The hotwallet to act on your behalf * @param contract_ The address for the contract you're delegating * @param value Whether to enable or disable delegation for this address, true for setting and false for revoking */ function delegateForContract(address delegate, address contract_, bool value) external; /** * @notice Allow the delegate to act on your behalf for a specific token * @param delegate The hotwallet to act on your behalf * @param contract_ The address for the contract you're delegating * @param tokenId The token id for the token you're delegating * @param value Whether to enable or disable delegation for this address, true for setting and false for revoking */ function delegateForToken(address delegate, address contract_, uint256 tokenId, bool value) external; /** * @notice Revoke all delegates */ function revokeAllDelegates() external; /** * @notice Revoke a specific delegate for all their permissions * @param delegate The hotwallet to revoke */ function revokeDelegate(address delegate) external; /** * @notice Remove yourself as a delegate for a specific vault * @param vault The vault which delegated to the msg.sender, and should be removed */ function revokeSelf(address vault) external; /** * ----------- READ ----------- */ /** * @notice Returns all active delegations a given delegate is able to claim on behalf of * @param delegate The delegate that you would like to retrieve delegations for * @return info Array of DelegationInfo structs */ function getDelegationsByDelegate(address delegate) external view returns (DelegationInfo[] memory); /** * @notice Returns an array of wallet-level delegates for a given vault * @param vault The cold wallet who issued the delegation * @return addresses Array of wallet-level delegates for a given vault */ function getDelegatesForAll(address vault) external view returns (address[] memory); /** * @notice Returns an array of contract-level delegates for a given vault and contract * @param vault The cold wallet who issued the delegation * @param contract_ The address for the contract you're delegating * @return addresses Array of contract-level delegates for a given vault and contract */ function getDelegatesForContract(address vault, address contract_) external view returns (address[] memory); /** * @notice Returns an array of contract-level delegates for a given vault's token * @param vault The cold wallet who issued the delegation * @param contract_ The address for the contract holding the token * @param tokenId The token id for the token you're delegating * @return addresses Array of contract-level delegates for a given vault's token */ function getDelegatesForToken(address vault, address contract_, uint256 tokenId) external view returns (address[] memory); /** * @notice Returns all contract-level delegations for a given vault * @param vault The cold wallet who issued the delegations * @return delegations Array of ContractDelegation structs */ function getContractLevelDelegations(address vault) external view returns (ContractDelegation[] memory delegations); /** * @notice Returns all token-level delegations for a given vault * @param vault The cold wallet who issued the delegations * @return delegations Array of TokenDelegation structs */ function getTokenLevelDelegations(address vault) external view returns (TokenDelegation[] memory delegations); /** * @notice Returns true if the address is delegated to act on the entire vault * @param delegate The hotwallet to act on your behalf * @param vault The cold wallet who issued the delegation */ function checkDelegateForAll(address delegate, address vault) external view returns (bool); /** * @notice Returns true if the address is delegated to act on your behalf for a token contract or an entire vault * @param delegate The hotwallet to act on your behalf * @param contract_ The address for the contract you're delegating * @param vault The cold wallet who issued the delegation */ function checkDelegateForContract(address delegate, address vault, address contract_) external view returns (bool); /** * @notice Returns true if the address is delegated to act on your behalf for a specific token, the token's contract or an entire vault * @param delegate The hotwallet to act on your behalf * @param contract_ The address for the contract you're delegating * @param tokenId The token id for the token you're delegating * @param vault The cold wallet who issued the delegation */ function checkDelegateForToken(address delegate, address vault, address contract_, uint256 tokenId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import "../lib/Errors.sol"; import "../lib/Structs.sol"; interface IWellClaim { event UserClaimed(address indexed user, uint128 amount, uint256 claimedAt); event ClaimedInNFTs( address indexed owner, uint128 amount, uint256 claimedAt ); event ClaimStatusUpdated(bool claimActive); event UpgraderUpdated(address newUpgrader); event UnclaimedNFTRewardsWithdrawn( uint256 totalWithdrawn, uint256 withdrawnAt ); event ClaimTokenDepositedAndClaimStarted( uint256 tokenAmount, uint256 claimStartDate ); event SignerUpdated(address newSigner, string newsignatureActionPrefix); event ClaimSchedulesUpdated(); event ClaimStartDateUpdated(uint256 claimStartDate); event MultiClaimAddressUpdated(address newAddress); event RevealedNFTClaimableUpdated( uint256 collectionId, uint256 tokenId, uint128 newAirdropTotalClaimable ); event NFTClaimablesUpdated( uint256 collectionId, uint256 tokenId ); event NFTUnlockedBPAndUnlockTsUpdated( uint64 additionalNFTUnlockedBP, uint128 newUnlockTimestamp ); event ClaimTokenWithdrawn( address receiver, uint256 amount ); function claim(address _vault, ClaimType[] calldata _claimTypes) external; function claimInNFTs( address _vault, NFTCollectionClaimRequest[] calldata _nftCollectionClaimRequests, bool _withWalletRewards ) external; function claimFromMulti( address _requester, ClaimType[] calldata _claimTypes ) external; function claimInNFTsFromMulti( address _requester, NFTCollectionClaimRequest[] calldata _nftCollectionClaimRequests, bool _withWalletRewards ) external; function setClaimables( address[] calldata _addresses, uint128[] calldata _claimables, ClaimType[] calldata _claimTypes ) external; function setNFTClaimables(NFTClaimable[] calldata _nftClaimables) external; function addNFTUnlockedBPAndSetUnlockTs( uint64 _additionalNFTUnlockedBP, uint128 _newUnlockedBPEffectiveTs ) external; function setUnclaimedNFTRewards( uint256 _collectionId, uint128[] calldata _unclaimTokenIds ) external; function setRevealedNFTClaimable( uint256 _collectionId, uint256 _tokenId, uint128 _additionalAirdropTotalClaimable ) external; function depositClaimTokenAndStartClaim( uint256 _tokenAmount, uint256 _claimStartDate ) external; function withdrawClaimToken(address _receiver, uint256 _amount) external; function withdrawUnclaimedNFTRewards(address _receiver) external; function setClaimSchedules( ClaimType[] calldata _claimTypes, ClaimSchedule[] calldata _claimSchedules ) external; function setClaimActive(bool _claimActive) external; function setClaimStartDate(uint256 _claimStartDate) external; function setMultiClaimAddress(address _multiClaim) external; function getClaimInfo( address _user, ClaimType _claimType ) external returns (uint128 claimableAmount, uint256 claimableExpiry); function getClaimInfoByNFT( uint256 _collectionId, uint256 _tokenId ) external returns (uint128 claimableAmount, uint256 claimableExpiry); function getRewardsClaimInfoByNFT( uint256 _collectionId, uint256 _tokenId ) external returns (uint128 claimableAmount, uint256 claimableExpiry); function getTotalClaimableAmountsByNFTs( uint256 _collectionId, uint256[] calldata _tokenIds ) external returns (uint128 totalClaimable); function getUserClaimDataByCollections( NFTCollectionInfo[] calldata _nftCollectionInfo ) external returns (CollectionClaimData[] memory collectionClaimInfo); function getClaimSchedule( ClaimType _claimType ) external returns (ClaimSchedule memory); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; error ClaimNotAvailable(); error ClaimNotClosed(); error NFTRewardsNotExpired(); error UpgraderRenounced(); error ClaimTokenZeroAddress(); error AlreadyDeposited(); error AlreadyWithdrawn(); error InvalidClaimSetup(); error InvalidWithdrawalSetup(); error InvalidCollectionId(); error InvalidDelegate(); error NoClaimableToken(); error MismatchedArrays(); error Unauthorized(); error Uint128Overflow();
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; enum ClaimType { WalletRewards, SeedPresale, CommunityPresale, PrivatePresale, Ecosystem, Contributors } struct ClaimData { uint128 totalClaimable; uint128 claimed; } struct NFTClaimData { uint128 airdropTotalClaimable; uint128 rewardsTotalClaimable; uint128 airdropClaimed; uint128 rewardsClaimed; } struct ClaimSchedule { uint256 startCycle; uint256[] lockUpBPs; } struct NFTClaimable { uint256 collectionId; uint256 tokenId; uint128 airdropTotalClaimable; uint128 rewardsTotalClaimable; } struct NFTCollectionInfo { uint256 collectionId; uint256[] tokenIds; } struct NFTCollectionClaimRequest { uint256 collectionId; uint256[] tokenIds; bool[] withNFTAirdropList; bool[] withNFTRewardsList; } struct CollectionClaimData { uint256 collectionId; uint256 tokenId; uint128 airdropClaimable; uint256 airdropClaimableExpiry; uint128 airdropTotalClaimable; uint128 airdropClaimed; uint128 rewardsClaimable; uint256 rewardsClaimableExpiry; uint128 rewardsTotalClaimable; uint128 rewardsClaimed; } struct UnclaimedNFTRewards { uint128 lastTokenId; uint128 totalUnclaimed; }
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "paris", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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ClaimType","name":"claimType","type":"uint8"}],"name":"usersClaimData","outputs":[{"internalType":"uint128","name":"totalClaimable","type":"uint128"},{"internalType":"uint128","name":"claimed","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawClaimToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_receiver","type":"address"}],"name":"withdrawUnclaimedNFTRewards","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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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.