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Latest 7 from a total of 7 transactions
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Set Approval For... | 17031153 | 620 days ago | IN | 0 ETH | 0.00098382 | ||||
Purchase | 16471932 | 699 days ago | IN | 0 ETH | 0.00097815 | ||||
Purchase | 16217528 | 734 days ago | IN | 0 ETH | 0.00054653 | ||||
Purchase | 16217516 | 734 days ago | IN | 0 ETH | 0.00057672 | ||||
Purchase | 16212036 | 735 days ago | IN | 0 ETH | 0.00068438 | ||||
Purchase | 16118219 | 748 days ago | IN | 0 ETH | 0.00057871 | ||||
Purchase | 16117966 | 748 days ago | IN | 0 ETH | 0.00026571 |
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Contract Name:
ERC721Drop
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 5000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; /** ________ _____ ____ ______ ____ /\_____ \ /\ __`\/\ _`\ /\ _ \ /\ _`\ \/____//'/'\ \ \/\ \ \ \L\ \ \ \L\ \ \ \ \/\ \ _ __ ___ _____ ____ //'/' \ \ \ \ \ \ , /\ \ __ \ \ \ \ \ \/\`'__\/ __`\/\ '__`\ /',__\ //'/'___ \ \ \_\ \ \ \\ \\ \ \/\ \ \ \ \_\ \ \ \//\ \L\ \ \ \L\ \/\__, `\ /\_______\\ \_____\ \_\ \_\ \_\ \_\ \ \____/\ \_\\ \____/\ \ ,__/\/\____/ \/_______/ \/_____/\/_/\/ /\/_/\/_/ \/___/ \/_/ \/___/ \ \ \/ \/___/ \ \_\ \/_/ */ import {ERC721AUpgradeable} from "erc721a-upgradeable/ERC721AUpgradeable.sol"; import {IERC721AUpgradeable} from "erc721a-upgradeable/IERC721AUpgradeable.sol"; import {IERC2981Upgradeable, IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC2981Upgradeable.sol"; import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol"; import {MerkleProofUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/cryptography/MerkleProofUpgradeable.sol"; import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; import {IZoraFeeManager} from "./interfaces/IZoraFeeManager.sol"; import {IMetadataRenderer} from "./interfaces/IMetadataRenderer.sol"; import {IOperatorFilterRegistry} from "./interfaces/IOperatorFilterRegistry.sol"; import {IERC721Drop} from "./interfaces/IERC721Drop.sol"; import {IOwnable} from "./interfaces/IOwnable.sol"; import {IFactoryUpgradeGate} from "./interfaces/IFactoryUpgradeGate.sol"; import {OwnableSkeleton} from "./utils/OwnableSkeleton.sol"; import {FundsReceiver} from "./utils/FundsReceiver.sol"; import {Version} from "./utils/Version.sol"; import {ERC721DropStorageV1} from "./storage/ERC721DropStorageV1.sol"; /** * @notice ZORA NFT Base contract for Drops and Editions * * @dev For drops: assumes 1. linear mint order, 2. max number of mints needs to be less than max_uint64 * (if you have more than 18 quintillion linear mints you should probably not be using this contract) * @author [email protected] * */ contract ERC721Drop is ERC721AUpgradeable, UUPSUpgradeable, IERC2981Upgradeable, ReentrancyGuardUpgradeable, AccessControlUpgradeable, IERC721Drop, OwnableSkeleton, FundsReceiver, Version(9), ERC721DropStorageV1 { /// @dev This is the max mint batch size for the optimized ERC721A mint contract uint256 internal immutable MAX_MINT_BATCH_SIZE = 8; /// @dev Gas limit to send funds uint256 internal immutable FUNDS_SEND_GAS_LIMIT = 210_000; /// @notice Access control roles bytes32 public immutable MINTER_ROLE = keccak256("MINTER"); bytes32 public immutable SALES_MANAGER_ROLE = keccak256("SALES_MANAGER"); /// @dev ZORA V3 transfer helper address for auto-approval address internal immutable zoraERC721TransferHelper; /// @dev Factory upgrade gate IFactoryUpgradeGate internal immutable factoryUpgradeGate; /// @dev Zora Fee Manager address IZoraFeeManager public immutable zoraFeeManager; /// @notice Max royalty BPS uint16 constant MAX_ROYALTY_BPS = 50_00; address immutable marketFilterDAOAddress; IOperatorFilterRegistry immutable operatorFilterRegistry = IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E); /// @notice Only allow for users with admin access modifier onlyAdmin() { if (!hasRole(DEFAULT_ADMIN_ROLE, _msgSender())) { revert Access_OnlyAdmin(); } _; } /// @notice Only a given role has access or admin /// @param role role to check for alongside the admin role modifier onlyRoleOrAdmin(bytes32 role) { if ( !hasRole(DEFAULT_ADMIN_ROLE, _msgSender()) && !hasRole(role, _msgSender()) ) { revert Access_MissingRoleOrAdmin(role); } _; } /// @notice Allows user to mint tokens at a quantity modifier canMintTokens(uint256 quantity) { if (quantity + _totalMinted() > config.editionSize) { revert Mint_SoldOut(); } _; } function _presaleActive() internal view returns (bool) { return salesConfig.presaleStart <= block.timestamp && salesConfig.presaleEnd > block.timestamp; } function _publicSaleActive() internal view returns (bool) { return salesConfig.publicSaleStart <= block.timestamp && salesConfig.publicSaleEnd > block.timestamp; } /// @notice Presale active modifier onlyPresaleActive() { if (!_presaleActive()) { revert Presale_Inactive(); } _; } /// @notice Public sale active modifier onlyPublicSaleActive() { if (!_publicSaleActive()) { revert Sale_Inactive(); } _; } /// @notice Getter for last minted token ID (gets next token id and subtracts 1) function _lastMintedTokenId() internal view returns (uint256) { return _currentIndex - 1; } /// @notice Start token ID for minting (1-100 vs 0-99) function _startTokenId() internal pure override returns (uint256) { return 1; } /// @notice Global constructor – these variables will not change with further proxy deploys /// @dev Marked as an initializer to prevent storage being used of base implementation. Can only be init'd by a proxy. /// @param _zoraFeeManager Zora Fee Manager /// @param _zoraERC721TransferHelper Transfer helper constructor( IZoraFeeManager _zoraFeeManager, address _zoraERC721TransferHelper, IFactoryUpgradeGate _factoryUpgradeGate, address _marketFilterDAOAddress ) initializer { zoraFeeManager = _zoraFeeManager; zoraERC721TransferHelper = _zoraERC721TransferHelper; factoryUpgradeGate = _factoryUpgradeGate; marketFilterDAOAddress = _marketFilterDAOAddress; } /// @dev Create a new drop contract /// @param _contractName Contract name /// @param _contractSymbol Contract symbol /// @param _initialOwner User that owns and can mint the edition, gets royalty and sales payouts and can update the base url if needed. /// @param _fundsRecipient Wallet/user that receives funds from sale /// @param _editionSize Number of editions that can be minted in total. If 0, unlimited editions can be minted. /// @param _royaltyBPS BPS of the royalty set on the contract. Can be 0 for no royalty. /// @param _salesConfig New sales config to set upon init /// @param _metadataRenderer Renderer contract to use /// @param _metadataRendererInit Renderer data initial contract function initialize( string memory _contractName, string memory _contractSymbol, address _initialOwner, address payable _fundsRecipient, uint64 _editionSize, uint16 _royaltyBPS, SalesConfiguration memory _salesConfig, IMetadataRenderer _metadataRenderer, bytes memory _metadataRendererInit ) public initializer { // Setup ERC721A __ERC721A_init(_contractName, _contractSymbol); // Setup access control __AccessControl_init(); // Setup re-entracy guard __ReentrancyGuard_init(); // Setup the owner role _setupRole(DEFAULT_ADMIN_ROLE, _initialOwner); // Set ownership to original sender of contract call _setOwner(_initialOwner); if (config.royaltyBPS > MAX_ROYALTY_BPS) { revert Setup_RoyaltyPercentageTooHigh(MAX_ROYALTY_BPS); } // Update salesConfig salesConfig = _salesConfig; // Setup config variables config.editionSize = _editionSize; config.metadataRenderer = _metadataRenderer; config.royaltyBPS = _royaltyBPS; config.fundsRecipient = _fundsRecipient; _metadataRenderer.initializeWithData(_metadataRendererInit); } /// @dev Getter for admin role associated with the contract to handle metadata /// @return boolean if address is admin function isAdmin(address user) external view returns (bool) { return hasRole(DEFAULT_ADMIN_ROLE, user); } /// @notice Connects this contract to the factory upgrade gate /// @param newImplementation proposed new upgrade implementation /// @dev Only can be called by admin function _authorizeUpgrade(address newImplementation) internal override onlyAdmin { if ( !factoryUpgradeGate.isValidUpgradePath({ _newImpl: newImplementation, _currentImpl: _getImplementation() }) ) { revert Admin_InvalidUpgradeAddress(newImplementation); } } // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | burn() | // | ------------------> // | | // | |----. // | | | burn token // | |<---' // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @param tokenId Token ID to burn /// @notice User burn function for token id function burn(uint256 tokenId) public { _burn(tokenId, true); } /// @dev Get royalty information for token /// @param _salePrice Sale price for the token function royaltyInfo(uint256, uint256 _salePrice) external view override returns (address receiver, uint256 royaltyAmount) { if (config.fundsRecipient == address(0)) { return (config.fundsRecipient, 0); } return ( config.fundsRecipient, (_salePrice * config.royaltyBPS) / 10_000 ); } /// @notice Sale details /// @return IERC721Drop.SaleDetails sale information details function saleDetails() external view returns (IERC721Drop.SaleDetails memory) { return IERC721Drop.SaleDetails({ publicSaleActive: _publicSaleActive(), presaleActive: _presaleActive(), publicSalePrice: salesConfig.publicSalePrice, publicSaleStart: salesConfig.publicSaleStart, publicSaleEnd: salesConfig.publicSaleEnd, presaleStart: salesConfig.presaleStart, presaleEnd: salesConfig.presaleEnd, presaleMerkleRoot: salesConfig.presaleMerkleRoot, totalMinted: _totalMinted(), maxSupply: config.editionSize, maxSalePurchasePerAddress: salesConfig.maxSalePurchasePerAddress }); } /// @dev Number of NFTs the user has minted per address /// @param minter to get counts for function mintedPerAddress(address minter) external view override returns (IERC721Drop.AddressMintDetails memory) { return IERC721Drop.AddressMintDetails({ presaleMints: presaleMintsByAddress[minter], publicMints: _numberMinted(minter) - presaleMintsByAddress[minter], totalMints: _numberMinted(minter) }); } /// @dev Setup auto-approval for Zora v3 access to sell NFT /// Still requires approval for module /// @param nftOwner owner of the nft /// @param operator operator wishing to transfer/burn/etc the NFTs function isApprovedForAll(address nftOwner, address operator) public view override(ERC721AUpgradeable) returns (bool) { if (operator == zoraERC721TransferHelper) { return true; } return super.isApprovedForAll(nftOwner, operator); } /// @dev Gets the zora fee for amount of withdraw /// @param amount amount of funds to get fee for function zoraFeeForAmount(uint256 amount) public returns (address payable, uint256) { (address payable recipient, uint256 bps) = zoraFeeManager .getZORAWithdrawFeesBPS(address(this)); return (recipient, (amount * bps) / 10_000); } /** *** ---------------------------------- *** *** *** *** PUBLIC MINTING FUNCTIONS *** *** *** *** ---------------------------------- *** ***/ // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | purchase() | // | ----------------------------> // | | // | | // ___________________________________________________________ // ! ALT / drop has no tokens left for caller to mint? ! // !_____/ | | ! // ! | revert Mint_SoldOut() | ! // ! | <---------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // ___________________________________________________________ // ! ALT / public sale isn't active? | ! // !_____/ | | ! // ! | revert Sale_Inactive() | ! // ! | <---------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // ___________________________________________________________ // ! ALT / inadequate funds sent? | ! // !_____/ | | ! // ! | revert Purchase_WrongPrice()| ! // ! | <---------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | mint tokens // | |<---' // | | // | |----. // | | | emit IERC721Drop.Sale() // | |<---' // | | // | return first minted token ID| // | <---------------------------- // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /** @dev This allows the user to purchase a edition edition at the given price in the contract. */ function purchase(uint256 quantity) external payable nonReentrant canMintTokens(quantity) onlyPublicSaleActive returns (uint256) { uint256 salePrice = salesConfig.publicSalePrice; if (msg.value != salePrice * quantity) { revert Purchase_WrongPrice(salePrice * quantity); } // If max purchase per address == 0 there is no limit. // Any other number, the per address mint limit is that. if ( salesConfig.maxSalePurchasePerAddress != 0 && _numberMinted(_msgSender()) + quantity - presaleMintsByAddress[_msgSender()] > salesConfig.maxSalePurchasePerAddress ) { revert Purchase_TooManyForAddress(); } _mintNFTs(_msgSender(), quantity); uint256 firstMintedTokenId = _lastMintedTokenId() - quantity; emit IERC721Drop.Sale({ to: _msgSender(), quantity: quantity, pricePerToken: salePrice, firstPurchasedTokenId: firstMintedTokenId }); return firstMintedTokenId; } /// @notice Function to mint NFTs /// @dev (important: Does not enforce max supply limit, enforce that limit earlier) /// @dev This batches in size of 8 as per recommended by ERC721A creators /// @param to address to mint NFTs to /// @param quantity number of NFTs to mint function _mintNFTs(address to, uint256 quantity) internal { do { uint256 toMint = quantity > MAX_MINT_BATCH_SIZE ? MAX_MINT_BATCH_SIZE : quantity; _mint({to: to, quantity: toMint}); quantity -= toMint; } while (quantity > 0); } // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | purchasePresale() | // | ----------------------------------> // | | // | | // _________________________________________________________________ // ! ALT / drop has no tokens left for caller to mint? ! // !_____/ | | ! // ! | revert Mint_SoldOut() | ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // _________________________________________________________________ // ! ALT / presale sale isn't active? | ! // !_____/ | | ! // ! | revert Presale_Inactive() | ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // _________________________________________________________________ // ! ALT / merkle proof unapproved for caller? | ! // !_____/ | | ! // ! | revert Presale_MerkleNotApproved()| ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // _________________________________________________________________ // ! ALT / inadequate funds sent? | ! // !_____/ | | ! // ! | revert Purchase_WrongPrice() | ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | mint tokens // | |<---' // | | // | |----. // | | | emit IERC721Drop.Sale() // | |<---' // | | // | return first minted token ID | // | <---------------------------------- // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @notice Merkle-tree based presale purchase function /// @param quantity quantity to purchase /// @param maxQuantity max quantity that can be purchased via merkle proof # /// @param pricePerToken price that each token is purchased at /// @param merkleProof proof for presale mint function purchasePresale( uint256 quantity, uint256 maxQuantity, uint256 pricePerToken, bytes32[] calldata merkleProof ) external payable nonReentrant canMintTokens(quantity) onlyPresaleActive returns (uint256) { if ( !MerkleProofUpgradeable.verify( merkleProof, salesConfig.presaleMerkleRoot, keccak256( // address, uint256, uint256 abi.encode(_msgSender(), maxQuantity, pricePerToken) ) ) ) { revert Presale_MerkleNotApproved(); } if (msg.value != pricePerToken * quantity) { revert Purchase_WrongPrice(pricePerToken * quantity); } presaleMintsByAddress[_msgSender()] += quantity; if (presaleMintsByAddress[_msgSender()] > maxQuantity) { revert Presale_TooManyForAddress(); } _mintNFTs(_msgSender(), quantity); uint256 firstMintedTokenId = _lastMintedTokenId() - quantity; emit IERC721Drop.Sale({ to: _msgSender(), quantity: quantity, pricePerToken: pricePerToken, firstPurchasedTokenId: firstMintedTokenId }); return firstMintedTokenId; } /** *** ---------------------------------- *** *** *** *** ADMIN OPERATOR FILTERING *** *** *** *** ---------------------------------- *** ***/ /// @notice Proxy to update market filter settings in the main registry contracts /// @notice Requires admin permissions /// @param args Calldata args to pass to the registry function updateMarketFilterSettings(bytes calldata args) external onlyAdmin returns (bytes memory) { (bool success, bytes memory ret) = address(operatorFilterRegistry).call( args ); if (!success) { revert RemoteOperatorFilterRegistryCallFailed(); } return ret; } /// @notice Manage subscription to the DAO for marketplace filtering based off royalty payouts. /// @param enable Enable filtering to non-royalty payout marketplaces function manageMarketFilterDAOSubscription(bool enable) external onlyAdmin { address self = address(this); if (marketFilterDAOAddress == address(0x0)) { revert MarketFilterDAOAddressNotSupportedForChain(); } if (!operatorFilterRegistry.isRegistered(self) && enable) { operatorFilterRegistry.registerAndSubscribe(self, marketFilterDAOAddress); } else if (enable) { operatorFilterRegistry.subscribe(self, marketFilterDAOAddress); } else { operatorFilterRegistry.unsubscribe(self, false); operatorFilterRegistry.unregister(self); } } /// @notice Hook to filter operators (no-op if no filters are registered) /// @dev Part of ERC721A token hooks /// @param from Transfer from user /// @param to Transfer to user /// @param startTokenId Token ID to start with /// @param quantity Quantity of token being transferred function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual override { if ( from != msg.sender && address(operatorFilterRegistry).code.length > 0 ) { if ( !operatorFilterRegistry.isOperatorAllowed( address(this), msg.sender ) ) { revert OperatorNotAllowed(msg.sender); } } } /** *** ---------------------------------- *** *** *** *** ADMIN MINTING FUNCTIONS *** *** *** *** ---------------------------------- *** ***/ // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | adminMint() | // | ----------------------------------> // | | // | | // _________________________________________________________________ // ! ALT / caller is not admin or minter role? | ! // !_____/ | | ! // ! | revert Access_MissingRoleOrAdmin()| ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // _________________________________________________________________ // ! ALT / drop has no tokens left for caller to mint? ! // !_____/ | | ! // ! | revert Mint_SoldOut() | ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | mint tokens // | |<---' // | | // | return last minted token ID | // | <---------------------------------- // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @notice Mint admin /// @param recipient recipient to mint to /// @param quantity quantity to mint function adminMint(address recipient, uint256 quantity) external onlyRoleOrAdmin(MINTER_ROLE) canMintTokens(quantity) returns (uint256) { _mintNFTs(recipient, quantity); return _lastMintedTokenId(); } // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | adminMintAirdrop() | // | ----------------------------------> // | | // | | // _________________________________________________________________ // ! ALT / caller is not admin or minter role? | ! // !_____/ | | ! // ! | revert Access_MissingRoleOrAdmin()| ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // _________________________________________________________________ // ! ALT / drop has no tokens left for recipients to mint? ! // !_____/ | | ! // ! | revert Mint_SoldOut() | ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // | _____________________________________ // | ! LOOP / for all recipients ! // | !______/ | ! // | ! |----. ! // | ! | | mint tokens ! // | ! |<---' ! // | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | return last minted token ID | // | <---------------------------------- // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @dev This mints multiple editions to the given list of addresses. /// @param recipients list of addresses to send the newly minted editions to function adminMintAirdrop(address[] calldata recipients) external override onlyRoleOrAdmin(MINTER_ROLE) canMintTokens(recipients.length) returns (uint256) { uint256 atId = _currentIndex; uint256 startAt = atId; unchecked { for ( uint256 endAt = atId + recipients.length; atId < endAt; atId++ ) { _mintNFTs(recipients[atId - startAt], 1); } } return _lastMintedTokenId(); } /** *** ---------------------------------- *** *** *** *** ADMIN CONFIGURATION FUNCTIONS *** *** *** *** ---------------------------------- *** ***/ // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | setOwner() | // | -------------------------> // | | // | | // ________________________________________________________ // ! ALT / caller is not admin? | ! // !_____/ | | ! // ! | revert Access_OnlyAdmin()| ! // ! | <------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | set owner // | |<---' // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @dev Set new owner for royalties / opensea /// @param newOwner new owner to set function setOwner(address newOwner) public onlyAdmin { _setOwner(newOwner); } /// @notice Set a new metadata renderer /// @param newRenderer new renderer address to use /// @param setupRenderer data to setup new renderer with function setMetadataRenderer( IMetadataRenderer newRenderer, bytes memory setupRenderer ) external onlyAdmin { config.metadataRenderer = newRenderer; if (setupRenderer.length > 0) { newRenderer.initializeWithData(setupRenderer); } emit UpdatedMetadataRenderer({ sender: _msgSender(), renderer: newRenderer }); } // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | setSalesConfiguration() | // | ----------------------------------> // | | // | | // _________________________________________________________________ // ! ALT / caller is not admin? | ! // !_____/ | | ! // ! | revert Access_MissingRoleOrAdmin()| ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | set funds recipient // | |<---' // | | // | |----. // | | | emit FundsRecipientChanged() // | |<---' // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @dev This sets the sales configuration // / @param publicSalePrice New public sale price function setSaleConfiguration( uint104 publicSalePrice, uint32 maxSalePurchasePerAddress, uint64 publicSaleStart, uint64 publicSaleEnd, uint64 presaleStart, uint64 presaleEnd, bytes32 presaleMerkleRoot ) external onlyRoleOrAdmin(SALES_MANAGER_ROLE) { // SalesConfiguration storage newConfig = SalesConfiguration({ // publicSaleStart: publicSaleStart, // publicSaleEnd: publicSaleEnd, // presaleStart: presaleStart, // presaleEnd: presaleEnd, // publicSalePrice: publicSalePrice, // maxSalePurchasePerAddress: maxSalePurchasePerAddress, // presaleMerkleRoot: presaleMerkleRoot // }); salesConfig.publicSalePrice = publicSalePrice; salesConfig.maxSalePurchasePerAddress = maxSalePurchasePerAddress; salesConfig.publicSaleStart = publicSaleStart; salesConfig.publicSaleEnd = publicSaleEnd; salesConfig.presaleStart = presaleStart; salesConfig.presaleEnd = presaleEnd; salesConfig.presaleMerkleRoot = presaleMerkleRoot; emit SalesConfigChanged(_msgSender()); } // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | setOwner() | // | -------------------------> // | | // | | // ________________________________________________________ // ! ALT / caller is not admin or SALES_MANAGER_ROLE? ! // !_____/ | | ! // ! | revert Access_OnlyAdmin()| ! // ! | <------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | set sales configuration // | |<---' // | | // | |----. // | | | emit SalesConfigChanged() // | |<---' // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @notice Set a different funds recipient /// @param newRecipientAddress new funds recipient address function setFundsRecipient(address payable newRecipientAddress) external onlyRoleOrAdmin(SALES_MANAGER_ROLE) { // TODO(iain): funds recipient cannot be 0? config.fundsRecipient = newRecipientAddress; emit FundsRecipientChanged(newRecipientAddress, _msgSender()); } // ,-. ,-. ,-. // `-' `-' `-' // /|\ /|\ /|\ // | | | ,----------. // / \ / \ / \ |ERC721Drop| // Caller FeeRecipient FundsRecipient `----+-----' // | | withdraw() | | // | -------------------------------------------------------------------------> // | | | | // | | | | // ________________________________________________________________________________________________________ // ! ALT / caller is not admin or manager? | | ! // !_____/ | | | | ! // ! | revert Access_WithdrawNotAllowed() | ! // ! | <------------------------------------------------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | | | // | | send fee amount | // | | <---------------------------------------------------- // | | | | // | | | | // | | | ____________________________________________________________ // | | | ! ALT / send unsuccesful? ! // | | | !_____/ | ! // | | | ! |----. ! // | | | ! | | revert Withdraw_FundsSendFailure() ! // | | | ! |<---' ! // | | | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | | !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | | | // | | | send remaining funds amount| // | | | <--------------------------- // | | | | // | | | | // | | | ____________________________________________________________ // | | | ! ALT / send unsuccesful? ! // | | | !_____/ | ! // | | | ! |----. ! // | | | ! | | revert Withdraw_FundsSendFailure() ! // | | | ! |<---' ! // | | | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | | !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // Caller FeeRecipient FundsRecipient ,----+-----. // ,-. ,-. ,-. |ERC721Drop| // `-' `-' `-' `----------' // /|\ /|\ /|\ // | | | // / \ / \ / \ /// @notice This withdraws ETH from the contract to the contract owner. function withdraw() external nonReentrant { address sender = _msgSender(); // Get fee amount uint256 funds = address(this).balance; (address payable feeRecipient, uint256 zoraFee) = zoraFeeForAmount( funds ); // Check if withdraw is allowed for sender if ( !hasRole(DEFAULT_ADMIN_ROLE, sender) && !hasRole(SALES_MANAGER_ROLE, sender) && sender != feeRecipient && sender != config.fundsRecipient ) { revert Access_WithdrawNotAllowed(); } // Payout ZORA fee if (zoraFee > 0) { (bool successFee, ) = feeRecipient.call{ value: zoraFee, gas: FUNDS_SEND_GAS_LIMIT }(""); if (!successFee) { revert Withdraw_FundsSendFailure(); } funds -= zoraFee; } // Payout recipient (bool successFunds, ) = config.fundsRecipient.call{ value: funds, gas: FUNDS_SEND_GAS_LIMIT }(""); if (!successFunds) { revert Withdraw_FundsSendFailure(); } // Emit event for indexing emit FundsWithdrawn( _msgSender(), config.fundsRecipient, funds, feeRecipient, zoraFee ); } // ,-. // `-' // /|\ // | ,----------. // / \ |ERC721Drop| // Caller `----+-----' // | finalizeOpenEdition() | // | ----------------------------------> // | | // | | // _________________________________________________________________ // ! ALT / caller is not admin or SALES_MANAGER_ROLE? ! // !_____/ | | ! // ! | revert Access_MissingRoleOrAdmin()| ! // ! | <---------------------------------- ! // !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | | // | _______________________________________________________________________ // | ! ALT / drop is not an open edition? ! // | !_____/ | ! // | ! |----. ! // | ! | | revert Admin_UnableToFinalizeNotOpenEdition() ! // | ! |<---' ! // | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | !~[noop]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~! // | | // | |----. // | | | set config edition size // | |<---' // | | // | |----. // | | | emit OpenMintFinalized() // | |<---' // Caller ,----+-----. // ,-. |ERC721Drop| // `-' `----------' // /|\ // | // / \ /// @notice Admin function to finalize and open edition sale function finalizeOpenEdition() external onlyRoleOrAdmin(SALES_MANAGER_ROLE) { if (config.editionSize != type(uint64).max) { revert Admin_UnableToFinalizeNotOpenEdition(); } config.editionSize = uint64(_totalMinted()); emit OpenMintFinalized(_msgSender(), config.editionSize); } /** *** ---------------------------------- *** *** *** *** GENERAL GETTER FUNCTIONS *** *** *** *** ---------------------------------- *** ***/ /// @notice Simple override for owner interface. /// @return user owner address function owner() public view override(OwnableSkeleton, IERC721Drop) returns (address) { return super.owner(); } /// @notice Contract URI Getter, proxies to metadataRenderer /// @return Contract URI function contractURI() external view returns (string memory) { return config.metadataRenderer.contractURI(); } /// @notice Getter for metadataRenderer contract function metadataRenderer() external view returns (IMetadataRenderer) { return IMetadataRenderer(config.metadataRenderer); } /// @notice Token URI Getter, proxies to metadataRenderer /// @param tokenId id of token to get URI for /// @return Token URI function tokenURI(uint256 tokenId) public view override returns (string memory) { if (!_exists(tokenId)) { revert IERC721AUpgradeable.URIQueryForNonexistentToken(); } return config.metadataRenderer.tokenURI(tokenId); } /// @notice ERC165 supports interface /// @param interfaceId interface id to check if supported function supportsInterface(bytes4 interfaceId) public view override( IERC165Upgradeable, ERC721AUpgradeable, AccessControlUpgradeable ) returns (bool) { return super.supportsInterface(interfaceId) || type(IOwnable).interfaceId == interfaceId || type(IERC2981Upgradeable).interfaceId == interfaceId || type(IERC721Drop).interfaceId == interfaceId; } }
// SPDX-License-Identifier: MIT // Creator: Chiru Labs pragma solidity ^0.8.4; import "./IERC721AUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol"; import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension. Built to optimize for lower gas during batch mints. * * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..). * * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply. * * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256). */ contract ERC721AUpgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721AUpgradeable { using AddressUpgradeable for address; using StringsUpgradeable for uint256; // The tokenId of the next token to be minted. uint256 internal _currentIndex; // The number of tokens burned. uint256 internal _burnCounter; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details. mapping(uint256 => TokenOwnership) internal _ownerships; // Mapping owner address to address data mapping(address => AddressData) private _addressData; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; function __ERC721A_init(string memory name_, string memory symbol_) internal onlyInitializing { __ERC721A_init_unchained(name_, symbol_); } function __ERC721A_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing { _name = name_; _symbol = symbol_; _currentIndex = _startTokenId(); } /** * To change the starting tokenId, please override this function. */ function _startTokenId() internal view virtual returns (uint256) { return 0; } /** * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens. */ function totalSupply() public view override returns (uint256) { // Counter underflow is impossible as _burnCounter cannot be incremented // more than _currentIndex - _startTokenId() times unchecked { return _currentIndex - _burnCounter - _startTokenId(); } } /** * Returns the total amount of tokens minted in the contract. */ function _totalMinted() internal view returns (uint256) { // Counter underflow is impossible as _currentIndex does not decrement, // and it is initialized to _startTokenId() unchecked { return _currentIndex - _startTokenId(); } } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) { return interfaceId == type(IERC721Upgradeable).interfaceId || interfaceId == type(IERC721MetadataUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view override returns (uint256) { if (owner == address(0)) revert BalanceQueryForZeroAddress(); return uint256(_addressData[owner].balance); } /** * Returns the number of tokens minted by `owner`. */ function _numberMinted(address owner) internal view returns (uint256) { return uint256(_addressData[owner].numberMinted); } /** * Returns the number of tokens burned by or on behalf of `owner`. */ function _numberBurned(address owner) internal view returns (uint256) { return uint256(_addressData[owner].numberBurned); } /** * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used). */ function _getAux(address owner) internal view returns (uint64) { return _addressData[owner].aux; } /** * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used). * If there are multiple variables, please pack them into a uint64. */ function _setAux(address owner, uint64 aux) internal { _addressData[owner].aux = aux; } /** * Gas spent here starts off proportional to the maximum mint batch size. * It gradually moves to O(1) as tokens get transferred around in the collection over time. */ function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) { uint256 curr = tokenId; unchecked { if (_startTokenId() <= curr && curr < _currentIndex) { TokenOwnership memory ownership = _ownerships[curr]; if (!ownership.burned) { if (ownership.addr != address(0)) { return ownership; } // Invariant: // There will always be an ownership that has an address and is not burned // before an ownership that does not have an address and is not burned. // Hence, curr will not underflow. while (true) { curr--; ownership = _ownerships[curr]; if (ownership.addr != address(0)) { return ownership; } } } } } revert OwnerQueryForNonexistentToken(); } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view override returns (address) { return _ownershipOf(tokenId).addr; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { if (!_exists(tokenId)) revert URIQueryForNonexistentToken(); string memory baseURI = _baseURI(); return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ''; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ''; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public override { address owner = ERC721AUpgradeable.ownerOf(tokenId); if (to == owner) revert ApprovalToCurrentOwner(); if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) { revert ApprovalCallerNotOwnerNorApproved(); } _approve(to, tokenId, owner); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view override returns (address) { if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken(); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { if (operator == _msgSender()) revert ApproveToCaller(); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ''); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { _transfer(from, to, tokenId); if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), */ function _exists(uint256 tokenId) internal view returns (bool) { return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned; } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal { _safeMint(to, quantity, ''); } /** * @dev Safely mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called for each safe transfer. * - `quantity` must be greater than 0. * * Emits a {Transfer} event. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal { uint256 startTokenId = _currentIndex; if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1 // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1 unchecked { _addressData[to].balance += uint64(quantity); _addressData[to].numberMinted += uint64(quantity); _ownerships[startTokenId].addr = to; _ownerships[startTokenId].startTimestamp = uint64(block.timestamp); uint256 updatedIndex = startTokenId; uint256 end = updatedIndex + quantity; if (to.isContract()) { do { emit Transfer(address(0), to, updatedIndex); if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } while (updatedIndex != end); // Reentrancy protection if (_currentIndex != startTokenId) revert(); } else { do { emit Transfer(address(0), to, updatedIndex++); } while (updatedIndex != end); } _currentIndex = updatedIndex; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {Transfer} event. */ function _mint(address to, uint256 quantity) internal { uint256 startTokenId = _currentIndex; if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1 // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1 unchecked { _addressData[to].balance += uint64(quantity); _addressData[to].numberMinted += uint64(quantity); _ownerships[startTokenId].addr = to; _ownerships[startTokenId].startTimestamp = uint64(block.timestamp); uint256 updatedIndex = startTokenId; uint256 end = updatedIndex + quantity; do { emit Transfer(address(0), to, updatedIndex++); } while (updatedIndex != end); _currentIndex = updatedIndex; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) private { TokenOwnership memory prevOwnership = _ownershipOf(tokenId); if (prevOwnership.addr != from) revert TransferFromIncorrectOwner(); bool isApprovedOrOwner = (_msgSender() == from || isApprovedForAll(from, _msgSender()) || getApproved(tokenId) == _msgSender()); if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved(); if (to == address(0)) revert TransferToZeroAddress(); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, from); // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256. unchecked { _addressData[from].balance -= 1; _addressData[to].balance += 1; TokenOwnership storage currSlot = _ownerships[tokenId]; currSlot.addr = to; currSlot.startTimestamp = uint64(block.timestamp); // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; TokenOwnership storage nextSlot = _ownerships[nextTokenId]; if (nextSlot.addr == address(0)) { // This will suffice for checking _exists(nextTokenId), // as a burned slot cannot contain the zero address. if (nextTokenId != _currentIndex) { nextSlot.addr = from; nextSlot.startTimestamp = prevOwnership.startTimestamp; } } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /** * @dev Equivalent to `_burn(tokenId, false)`. */ function _burn(uint256 tokenId) internal virtual { _burn(tokenId, false); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId, bool approvalCheck) internal virtual { TokenOwnership memory prevOwnership = _ownershipOf(tokenId); address from = prevOwnership.addr; if (approvalCheck) { bool isApprovedOrOwner = (_msgSender() == from || isApprovedForAll(from, _msgSender()) || getApproved(tokenId) == _msgSender()); if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved(); } _beforeTokenTransfers(from, address(0), tokenId, 1); // Clear approvals from the previous owner _approve(address(0), tokenId, from); // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256. unchecked { AddressData storage addressData = _addressData[from]; addressData.balance -= 1; addressData.numberBurned += 1; // Keep track of who burned the token, and the timestamp of burning. TokenOwnership storage currSlot = _ownerships[tokenId]; currSlot.addr = from; currSlot.startTimestamp = uint64(block.timestamp); currSlot.burned = true; // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it. // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls. uint256 nextTokenId = tokenId + 1; TokenOwnership storage nextSlot = _ownerships[nextTokenId]; if (nextSlot.addr == address(0)) { // This will suffice for checking _exists(nextTokenId), // as a burned slot cannot contain the zero address. if (nextTokenId != _currentIndex) { nextSlot.addr = from; nextSlot.startTimestamp = prevOwnership.startTimestamp; } } } emit Transfer(from, address(0), tokenId); _afterTokenTransfers(from, address(0), tokenId, 1); // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times. unchecked { _burnCounter++; } } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve( address to, uint256 tokenId, address owner ) private { _tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkContractOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721ReceiverUpgradeable(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert TransferToNonERC721ReceiverImplementer(); } else { assembly { revert(add(32, reason), mload(reason)) } } } } /** * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting. * And also called before burning one token. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes * minting. * And also called after one token has been burned. * * startTokenId - the first token id to be transferred * quantity - the amount to be transferred * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been * transferred to `to`. * - When `from` is zero, `tokenId` has been minted for `to`. * - When `to` is zero, `tokenId` has been burned by `from`. * - `from` and `to` are never both zero. */ function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[42] private __gap; }
// SPDX-License-Identifier: MIT // Creator: Chiru Labs pragma solidity ^0.8.4; import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol"; import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol"; /** * @dev Interface of an ERC721A compliant contract. */ interface IERC721AUpgradeable is IERC721Upgradeable, IERC721MetadataUpgradeable { /** * The caller must own the token or be an approved operator. */ error ApprovalCallerNotOwnerNorApproved(); /** * The token does not exist. */ error ApprovalQueryForNonexistentToken(); /** * The caller cannot approve to their own address. */ error ApproveToCaller(); /** * The caller cannot approve to the current owner. */ error ApprovalToCurrentOwner(); /** * Cannot query the balance for the zero address. */ error BalanceQueryForZeroAddress(); /** * Cannot mint to the zero address. */ error MintToZeroAddress(); /** * The quantity of tokens minted must be more than zero. */ error MintZeroQuantity(); /** * The token does not exist. */ error OwnerQueryForNonexistentToken(); /** * The caller must own the token or be an approved operator. */ error TransferCallerNotOwnerNorApproved(); /** * The token must be owned by `from`. */ error TransferFromIncorrectOwner(); /** * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface. */ error TransferToNonERC721ReceiverImplementer(); /** * Cannot transfer to the zero address. */ error TransferToZeroAddress(); /** * The token does not exist. */ error URIQueryForNonexistentToken(); // Compiler will pack this into a single 256bit word. struct TokenOwnership { // The address of the owner. address addr; // Keeps track of the start time of ownership with minimal overhead for tokenomics. uint64 startTimestamp; // Whether the token has been burned. bool burned; } // Compiler will pack this into a single 256bit word. struct AddressData { // Realistically, 2**64-1 is more than enough. uint64 balance; // Keeps track of mint count with minimal overhead for tokenomics. uint64 numberMinted; // Keeps track of burn count with minimal overhead for tokenomics. uint64 numberBurned; // For miscellaneous variable(s) pertaining to the address // (e.g. number of whitelist mint slots used). // If there are multiple variables, please pack them into a uint64. uint64 aux; } /** * @dev Returns the total amount of tokens stored by the contract. * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens. */ function totalSupply() external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControlUpgradeable.sol"; import "../utils/ContextUpgradeable.sol"; import "../utils/StringsUpgradeable.sol"; import "../utils/introspection/ERC165Upgradeable.sol"; import "../proxy/utils/Initializable.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable { function __AccessControl_init() internal onlyInitializing { } function __AccessControl_init_unchained() internal onlyInitializing { } struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", StringsUpgradeable.toHexString(uint160(account), 20), " is missing role ", StringsUpgradeable.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControlUpgradeable { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165Upgradeable.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981Upgradeable is IERC165Upgradeable { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be payed in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.0; /** * @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 IERC1822ProxiableUpgradeable { /** * @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 v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; import "../beacon/IBeaconUpgradeable.sol"; import "../../interfaces/draft-IERC1822Upgradeable.sol"; import "../../utils/AddressUpgradeable.sol"; import "../../utils/StorageSlotUpgradeable.sol"; import "../utils/Initializable.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. * * _Available since v4.1._ * * @custom:oz-upgrades-unsafe-allow delegatecall */ abstract contract ERC1967UpgradeUpgradeable is Initializable { function __ERC1967Upgrade_init() internal onlyInitializing { } function __ERC1967Upgrade_init_unchained() internal onlyInitializing { } // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Perform implementation upgrade with additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCall( address newImplementation, bytes memory data, bool forceCall ) internal { _upgradeTo(newImplementation); if (data.length > 0 || forceCall) { _functionDelegateCall(newImplementation, data); } } /** * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCallUUPS( address newImplementation, bytes memory data, bool forceCall ) internal { // Upgrades from old implementations will perform a rollback test. This test requires the new // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing // this special case will break upgrade paths from old UUPS implementation to new ones. if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) { require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); } catch { revert("ERC1967Upgrade: new implementation is not UUPS"); } _upgradeToAndCall(newImplementation, data, forceCall); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { require(newAdmin != address(0), "ERC1967: new admin is the zero address"); StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _changeAdmin(address newAdmin) internal { emit AdminChanged(_getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Emitted when the beacon is upgraded. */ event BeaconUpgraded(address indexed beacon); /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon; } /** * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). * * Emits a {BeaconUpgraded} event. */ function _upgradeBeaconToAndCall( address newBeacon, bytes memory data, bool forceCall ) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0 || forceCall) { _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data); } } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) { require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract"); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = target.delegatecall(data); return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed"); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeaconUpgradeable { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.0; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since 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. * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() initializer {} * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. */ bool private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Modifier to protect an initializer function from being invoked twice. */ modifier initializer() { // If the contract is initializing we ignore whether _initialized is set in order to support multiple // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the // contract may have been reentered. require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized"); bool isTopLevelCall = !_initializing; if (isTopLevelCall) { _initializing = true; _initialized = true; } _; if (isTopLevelCall) { _initializing = false; } } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} modifier, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } function _isConstructor() private view returns (bool) { return !AddressUpgradeable.isContract(address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/UUPSUpgradeable.sol) pragma solidity ^0.8.0; import "../../interfaces/draft-IERC1822Upgradeable.sol"; import "../ERC1967/ERC1967UpgradeUpgradeable.sol"; import "./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. * * _Available since v4.1._ */ abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable { function __UUPSUpgradeable_init() internal onlyInitializing { } function __UUPSUpgradeable_init_unchained() internal onlyInitializing { } /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment address private immutable __self = address(this); /** * @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() { require(address(this) != __self, "Function must be called through delegatecall"); require(_getImplementation() == __self, "Function must be called through active proxy"); _; } /** * @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() { require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall"); _; } /** * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the * implementation. It is used to validate that the this implementation remains valid after 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 override notDelegated returns (bytes32) { return _IMPLEMENTATION_SLOT; } /** * @dev Upgrade the implementation of the proxy to `newImplementation`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. */ function upgradeTo(address newImplementation) external virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, new bytes(0), false); } /** * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call * encoded in `data`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. */ function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, data, true); } /** * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by * {upgradeTo} and {upgradeToAndCall}. * * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. * * ```solidity * function _authorizeUpgrade(address) internal override onlyOwner {} * ``` */ function _authorizeUpgrade(address newImplementation) internal virtual; /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuardUpgradeable is Initializable { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; function __ReentrancyGuard_init() internal onlyInitializing { __ReentrancyGuard_init_unchained(); } function __ReentrancyGuard_init_unchained() internal onlyInitializing { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[49] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721ReceiverUpgradeable { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165Upgradeable.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721Upgradeable is IERC165Upgradeable { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721Upgradeable.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721MetadataUpgradeable is IERC721Upgradeable { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/StorageSlot.sol) pragma solidity ^0.8.0; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC1967 implementation slot: * ``` * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._ */ library StorageSlotUpgradeable { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { assembly { r.slot := slot } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library StringsUpgradeable { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. */ library MerkleProofUpgradeable { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = _efficientHash(computedHash, proofElement); } else { // Hash(current element of the proof + current computed hash) computedHash = _efficientHash(proofElement, computedHash); } } return computedHash; } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165Upgradeable.sol"; import "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable { function __ERC165_init() internal onlyInitializing { } function __ERC165_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165Upgradeable).interfaceId; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165Upgradeable { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; import {IMetadataRenderer} from "../interfaces/IMetadataRenderer.sol"; /** ________ _____ ____ ______ ____ /\_____ \ /\ __`\/\ _`\ /\ _ \ /\ _`\ \/____//'/'\ \ \/\ \ \ \L\ \ \ \L\ \ \ \ \/\ \ _ __ ___ _____ ____ //'/' \ \ \ \ \ \ , /\ \ __ \ \ \ \ \ \/\`'__\/ __`\/\ '__`\ /',__\ //'/'___ \ \ \_\ \ \ \\ \\ \ \/\ \ \ \ \_\ \ \ \//\ \L\ \ \ \L\ \/\__, `\ /\_______\\ \_____\ \_\ \_\ \_\ \_\ \ \____/\ \_\\ \____/\ \ ,__/\/\____/ \/_______/ \/_____/\/_/\/ /\/_/\/_/ \/___/ \/_/ \/___/ \ \ \/ \/___/ \ \_\ \/_/ */ /// @notice Interface for ZORA Drops contract interface IERC721Drop { // Access errors /// @notice Only admin can access this function error Access_OnlyAdmin(); /// @notice Missing the given role or admin access error Access_MissingRoleOrAdmin(bytes32 role); /// @notice Withdraw is not allowed by this user error Access_WithdrawNotAllowed(); /// @notice Cannot withdraw funds due to ETH send failure. error Withdraw_FundsSendFailure(); /// @notice Thrown when the operator for the contract is not allowed /// @dev Used when strict enforcement of marketplaces for creator royalties is desired. error OperatorNotAllowed(address operator); /// @notice Thrown when there is no active market filter DAO address supported for the current chain /// @dev Used for enabling and disabling filter for the given chain. error MarketFilterDAOAddressNotSupportedForChain(); /// @notice Used when the operator filter registry external call fails /// @dev Used for bubbling error up to clients. error RemoteOperatorFilterRegistryCallFailed(); // Sale/Purchase errors /// @notice Sale is inactive error Sale_Inactive(); /// @notice Presale is inactive error Presale_Inactive(); /// @notice Presale merkle root is invalid error Presale_MerkleNotApproved(); /// @notice Wrong price for purchase error Purchase_WrongPrice(uint256 correctPrice); /// @notice NFT sold out error Mint_SoldOut(); /// @notice Too many purchase for address error Purchase_TooManyForAddress(); /// @notice Too many presale for address error Presale_TooManyForAddress(); // Admin errors /// @notice Royalty percentage too high error Setup_RoyaltyPercentageTooHigh(uint16 maxRoyaltyBPS); /// @notice Invalid admin upgrade address error Admin_InvalidUpgradeAddress(address proposedAddress); /// @notice Unable to finalize an edition not marked as open (size set to uint64_max_value) error Admin_UnableToFinalizeNotOpenEdition(); /// @notice Event emitted for each sale /// @param to address sale was made to /// @param quantity quantity of the minted nfts /// @param pricePerToken price for each token /// @param firstPurchasedTokenId first purchased token ID (to get range add to quantity for max) event Sale( address indexed to, uint256 indexed quantity, uint256 indexed pricePerToken, uint256 firstPurchasedTokenId ); /// @notice Sales configuration has been changed /// @dev To access new sales configuration, use getter function. /// @param changedBy Changed by user event SalesConfigChanged(address indexed changedBy); /// @notice Event emitted when the funds recipient is changed /// @param newAddress new address for the funds recipient /// @param changedBy address that the recipient is changed by event FundsRecipientChanged( address indexed newAddress, address indexed changedBy ); /// @notice Event emitted when the funds are withdrawn from the minting contract /// @param withdrawnBy address that issued the withdraw /// @param withdrawnTo address that the funds were withdrawn to /// @param amount amount that was withdrawn /// @param feeRecipient user getting withdraw fee (if any) /// @param feeAmount amount of the fee getting sent (if any) event FundsWithdrawn( address indexed withdrawnBy, address indexed withdrawnTo, uint256 amount, address feeRecipient, uint256 feeAmount ); /// @notice Event emitted when an open mint is finalized and further minting is closed forever on the contract. /// @param sender address sending close mint /// @param numberOfMints number of mints the contract is finalized at event OpenMintFinalized(address indexed sender, uint256 numberOfMints); /// @notice Event emitted when metadata renderer is updated. /// @param sender address of the updater /// @param renderer new metadata renderer address event UpdatedMetadataRenderer(address sender, IMetadataRenderer renderer); /// @notice General configuration for NFT Minting and bookkeeping struct Configuration { /// @dev Metadata renderer (uint160) IMetadataRenderer metadataRenderer; /// @dev Total size of edition that can be minted (uint160+64 = 224) uint64 editionSize; /// @dev Royalty amount in bps (uint224+16 = 240) uint16 royaltyBPS; /// @dev Funds recipient for sale (new slot, uint160) address payable fundsRecipient; } /// @notice Sales states and configuration /// @dev Uses 3 storage slots struct SalesConfiguration { /// @dev Public sale price (max ether value > 1000 ether with this value) uint104 publicSalePrice; /// @notice Purchase mint limit per address (if set to 0 === unlimited mints) /// @dev Max purchase number per txn (90+32 = 122) uint32 maxSalePurchasePerAddress; /// @dev uint64 type allows for dates into 292 billion years /// @notice Public sale start timestamp (136+64 = 186) uint64 publicSaleStart; /// @notice Public sale end timestamp (186+64 = 250) uint64 publicSaleEnd; /// @notice Presale start timestamp /// @dev new storage slot uint64 presaleStart; /// @notice Presale end timestamp uint64 presaleEnd; /// @notice Presale merkle root bytes32 presaleMerkleRoot; } /// @notice Return value for sales details to use with front-ends struct SaleDetails { // Synthesized status variables for sale and presale bool publicSaleActive; bool presaleActive; // Price for public sale uint256 publicSalePrice; // Timed sale actions for public sale uint64 publicSaleStart; uint64 publicSaleEnd; // Timed sale actions for presale uint64 presaleStart; uint64 presaleEnd; // Merkle root (includes address, quantity, and price data for each entry) bytes32 presaleMerkleRoot; // Limit public sale to a specific number of mints per wallet uint256 maxSalePurchasePerAddress; // Information about the rest of the supply // Total that have been minted uint256 totalMinted; // The total supply available uint256 maxSupply; } /// @notice Return type of specific mint counts and details per address struct AddressMintDetails { /// Number of total mints from the given address uint256 totalMints; /// Number of presale mints from the given address uint256 presaleMints; /// Number of public mints from the given address uint256 publicMints; } /// @notice External purchase function (payable in eth) /// @param quantity to purchase /// @return first minted token ID function purchase(uint256 quantity) external payable returns (uint256); /// @notice External purchase presale function (takes a merkle proof and matches to root) (payable in eth) /// @param quantity to purchase /// @param maxQuantity can purchase (verified by merkle root) /// @param pricePerToken price per token allowed (verified by merkle root) /// @param merkleProof input for merkle proof leaf verified by merkle root /// @return first minted token ID function purchasePresale( uint256 quantity, uint256 maxQuantity, uint256 pricePerToken, bytes32[] memory merkleProof ) external payable returns (uint256); /// @notice Function to return the global sales details for the given drop function saleDetails() external view returns (SaleDetails memory); /// @notice Function to return the specific sales details for a given address /// @param minter address for minter to return mint information for function mintedPerAddress(address minter) external view returns (AddressMintDetails memory); /// @notice This is the opensea/public owner setting that can be set by the contract admin function owner() external view returns (address); /// @notice Update the metadata renderer /// @param newRenderer new address for renderer /// @param setupRenderer data to call to bootstrap data for the new renderer (optional) function setMetadataRenderer( IMetadataRenderer newRenderer, bytes memory setupRenderer ) external; /// @notice This is an admin mint function to mint a quantity to a specific address /// @param to address to mint to /// @param quantity quantity to mint /// @return the id of the first minted NFT function adminMint(address to, uint256 quantity) external returns (uint256); /// @notice This is an admin mint function to mint a single nft each to a list of addresses /// @param to list of addresses to mint an NFT each to /// @return the id of the first minted NFT function adminMintAirdrop(address[] memory to) external returns (uint256); /// @dev Getter for admin role associated with the contract to handle metadata /// @return boolean if address is admin function isAdmin(address user) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; interface IFactoryUpgradeGate { function isValidUpgradePath(address _newImpl, address _currentImpl) external returns (bool); function registerNewUpgradePath(address _newImpl, address[] calldata _supportedPrevImpls) external; function unregisterUpgradePath(address _newImpl, address _prevImpl) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; interface IMetadataRenderer { function tokenURI(uint256) external view returns (string memory); function contractURI() external view returns (string memory); function initializeWithData(bytes memory initData) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; interface IOperatorFilterRegistry { function isOperatorAllowed(address registrant, address operator) external view returns (bool); function register(address registrant) external; function registerAndSubscribe(address registrant, address subscription) external; function registerAndCopyEntries(address registrant, address registrantToCopy) external; function updateOperator(address registrant, address operator, bool filtered) external; function updateOperators(address registrant, address[] calldata operators, bool filtered) external; function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external; function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external; function subscribe(address registrant, address registrantToSubscribe) external; function unsubscribe(address registrant, bool copyExistingEntries) external; function subscriptionOf(address addr) external returns (address registrant); function subscribers(address registrant) external returns (address[] memory); function subscriberAt(address registrant, uint256 index) external returns (address); function copyEntriesOf(address registrant, address registrantToCopy) external; function isOperatorFiltered(address registrant, address operator) external returns (bool); function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool); function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool); function filteredOperators(address addr) external returns (address[] memory); function filteredCodeHashes(address addr) external returns (bytes32[] memory); function filteredOperatorAt(address registrant, uint256 index) external returns (address); function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32); function isRegistered(address addr) external returns (bool); function codeHashOf(address addr) external returns (bytes32); function unregister(address registrant) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; /** * @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. * * This ownership interface matches OZ's ownable interface. * */ interface IOwnable { error ONLY_OWNER(); error ONLY_PENDING_OWNER(); event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); event OwnerPending( address indexed previousOwner, address indexed potentialNewOwner ); event OwnerCanceled( address indexed previousOwner, address indexed potentialNewOwner ); /** * @dev Returns the address of the current owner. */ function owner() external view returns (address); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; interface IZoraFeeManager { function getZORAWithdrawFeesBPS(address sender) external returns (address payable, uint256); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; import {IERC721Drop} from "../interfaces/IERC721Drop.sol"; contract ERC721DropStorageV1 { /// @notice Configuration for NFT minting contract storage IERC721Drop.Configuration public config; /// @notice Sales configuration IERC721Drop.SalesConfiguration public salesConfig; /// @dev Mapping for presale mint counts by address to allow public mint limit mapping(address => uint256) public presaleMintsByAddress; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; /** * @notice This allows this contract to receive native currency funds from other contracts * Uses event logging for UI reasons. */ contract FundsReceiver { event FundsReceived(address indexed source, uint256 amount); receive() external payable { emit FundsReceived(msg.sender, msg.value); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; import {IOwnable} from "../interfaces/IOwnable.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. * * This ownership interface matches OZ's ownable interface. */ contract OwnableSkeleton is IOwnable { address private _owner; /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } function _setOwner(address newAddress) internal { emit OwnershipTransferred(_owner, newAddress); _owner = newAddress; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.10; contract Version { uint32 private immutable __version; /// @notice The version of the contract /// @return The version ID of this contract implementation function contractVersion() external view returns (uint32) { return __version; } constructor(uint32 version) { __version = version; } }
{ "remappings": [ "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/", "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/", "ERC721A-Upgradeable/=lib/ERC721A-Upgradeable/contracts/", "base64/=lib/base64/", "ds-test/=lib/forge-std/lib/ds-test/src/", "erc721a-upgradeable/=lib/ERC721A-Upgradeable/contracts/", "forge-std/=lib/forge-std/src/", "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/", "openzeppelin-contracts/=lib/openzeppelin-contracts/" ], "optimizer": { "enabled": true, "runs": 5000 }, "metadata": { "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "libraries": {} }
Contract Security Audit
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IERC721Drop.SaleDetails","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"salesConfig","outputs":[{"internalType":"uint104","name":"publicSalePrice","type":"uint104"},{"internalType":"uint32","name":"maxSalePurchasePerAddress","type":"uint32"},{"internalType":"uint64","name":"publicSaleStart","type":"uint64"},{"internalType":"uint64","name":"publicSaleEnd","type":"uint64"},{"internalType":"uint64","name":"presaleStart","type":"uint64"},{"internalType":"uint64","name":"presaleEnd","type":"uint64"},{"internalType":"bytes32","name":"presaleMerkleRoot","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"newRecipientAddress","type":"address"}],"name":"setFundsRecipient","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IMetadataRenderer","name":"newRenderer","type":"address"},{"internalType":"bytes","name":"setupRenderer","type":"bytes"}],"name":"setMetadataRenderer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"setOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint104","name":"publicSalePrice","type":"uint104"},{"internalType":"uint32","name":"maxSalePurchasePerAddress","type":"uint32"},{"internalType":"uint64","name":"publicSaleStart","type":"uint64"},{"internalType":"uint64","name":"publicSaleEnd","type":"uint64"},{"internalType":"uint64","name":"presaleStart","type":"uint64"},{"internalType":"uint64","name":"presaleEnd","type":"uint64"},{"internalType":"bytes32","name":"presaleMerkleRoot","type":"bytes32"}],"name":"setSaleConfiguration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"args","type":"bytes"}],"name":"updateMarketFilterSettings","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"zoraFeeForAmount","outputs":[{"internalType":"address payable","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"zoraFeeManager","outputs":[{"internalType":"contract IZoraFeeManager","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000e666ca2f5ab01a5e8ca19e505b2de3475a39d7d2000000000000000000000000909e9efe4d87d1a6018c2065ae642b6d0447bc9100000000000000000000000097f589d427c4dfa48e3f3f50ff0c5b49334dde220000000000000000000000003ae2804de4a54283601db24a897856d9772ea0d8
-----Decoded View---------------
Arg [0] : _zoraFeeManager (address): 0xe666CA2f5ab01a5E8ca19E505B2dE3475A39D7d2
Arg [1] : _zoraERC721TransferHelper (address): 0x909e9efE4D87d1a6018C2065aE642b6D0447bc91
Arg [2] : _factoryUpgradeGate (address): 0x97f589D427c4DFA48e3F3F50Ff0C5b49334DdE22
Arg [3] : _marketFilterDAOAddress (address): 0x3AE2804De4A54283601Db24a897856D9772eA0D8
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000e666ca2f5ab01a5e8ca19e505b2de3475a39d7d2
Arg [1] : 000000000000000000000000909e9efe4d87d1a6018c2065ae642b6d0447bc91
Arg [2] : 00000000000000000000000097f589d427c4dfa48e3f3f50ff0c5b49334dde22
Arg [3] : 0000000000000000000000003ae2804de4a54283601db24a897856d9772ea0d8
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Multichain Portfolio | 30 Chains
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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.