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ERC-721
Overview
Max Total Supply
4,579 BEE
Holders
827
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 BEELoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
TheGardens
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 5000000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/common/ERC2981.sol"; import "./ERC721AOS.sol"; // StakedNFTMetadata Interface: // This interface defines a blueprint for the NFT Stake contract. Its purpose is to enable the creation of // the minting contract independently from the stake contract, allowing developers to work on the stake // contract's logic without deploying it simultaneously. // // The stake contract must implement this interface for proper integration with the minting contract, // which works with newly staked NFTs. The getMetadata method is called by the minting contract's tokenURI // method after stakeSupplyStart varible is reached (10k) tokens have been minted. // // By following this interface, the stake contract is responsible for managing the metadata for staked NFTs, // ensuring that the stake contract is in control of the metadata and its associated logic. interface StakedNFTMetadata { function getMetadata(uint256 tokenId) external view returns (string memory); } // ,---------. .---. .---. .-''-. .-_'''-. ____ .-------. ______ .-''-. ,---. .--. .-'''-. // \ \| | |_ _| .'_ _ \ '_( )_ \ .' __ `. | _ _ \ | _ `''. .'_ _ \ | \ | | / _ \ // `--. ,---'| | ( ' ) / ( ` ) ' |(_ o _)| ' / ' \ \| ( ' ) | | _ | ) _ \ / ( ` ) '| , \ | | (`' )/`--' // | \ | '-(_{;}_). (_ o _) | . (_,_)/___| |___| / ||(_ o _) / |( ''_' ) |. (_ o _) || |\_ \| |(_ o _). // :_ _: | (_,_) | (_,_)___| | | .-----. _.-` || (_,_).' __ | . (_) `. || (_,_)___|| _( )_\ | (_,_). '. // (_I_) | _ _--. | ' \ .---. ' \ '- .'.' _ || |\ \ | ||(_ ._) '' \ .---.| (_ o _) |.---. \ : // (_(=)_) |( ' ) | | \ `-' / \ `-'` | | _( )_ || | \ `' /| (_.\.' / \ `-' /| (_,_)\ |\ `-' | // (_I_) (_{;}_)| | \ / \ / \ (_ o _) /| | \ / | .' \ / | | | | \ / // '---' '(_,_) '---' `'-..-' `'-...-' '.(_,_).' ''-' `'-' '-----'` `'-..-' '--' '--' `-...-' // // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒░░░░░▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░▒▒▒░░░░░▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▓▓▓▓▓░░░░░░▒▒▒░░░░░░▒▒▒▒▒▒░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒░░░░░▒▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░ // ░░░░░░░░░░░░▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░▒▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░ // ░░░░░░░░░░░░▒▒▒░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒▒▒░░░░░░░░░░░░░░▒▒▒▒░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░░░░░░░ // ░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▓░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▒░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▓▓▓▓▓▓░░░░░░▒▒▒░░░░░▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▓▓▓▓▓▒░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒░░░▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░▒▒▒░░░░░▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▓▓▓▓▓▒░░░░░▒▒▒░░░░░░▒▒▒▒▒▒░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░▒▒▒▒░░░░░▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒░░░░░░▒▒▒▒▒▒░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░ // ░░░░░░░░░░░░▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░▒▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░ // ░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░ // ░░░░░░░░░░░░▒▒▒░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒▒▒░░░░░░░░░░░░░░▒▒▒▒░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▓░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▓▓▒░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒▒▒░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░▒▒▒░░░░░▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▓▓▓▒▒▒░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒░░░░░░▒▒▒░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▓▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▓▓▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒▓▓▓▓▓░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░▒▒▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ // Contract By @R4vonus // ________ // ___ __ \______ ____ ________ _______ ____ __________ // __ /_/ /_ __ `/__ | / /_ __ \__ __ \_ / / /__ ___/ // _ _, _/ / /_/ / __ |/ / / /_/ /_ / / // /_/ / _(__ ) // /_/ |_| \__,_/ _____/ \____/ /_/ /_/ \__,_/ /____/ // //////////////////////////////////////////////////////// contract TheGardens is ERC2981, ERC721AOS { bytes32 public queenHash; bytes32 public metadataHash; uint32 public immutable maxTotalSupply = 100000; uint16 public stakeSupplyStart; string public metamorphosisURI; string public metamorphosisHash; MintBeesData public beesParams; bool public locked; bool public hiveStarted; address public hiveContract; address public signerAddress; address private beekeeper; address private honeykeeper; IERC20 public pepeContract; mapping(address => uint8) public mintingData; mapping(address => uint8) public honeyPassMints; // Status mapping: // 0 - Disabled: minting is not allowed // 1 - Whitelist: only whitelisted addresses can mint // 2 - Waitlist: whitelisted and waitlisted addresses can mint // 3 - Public: anyone can mint - maxMint is reset back to 0, but is still 5 // 4 - Hive: Stake minting is enabled - You can now mint the rest of the 90k supply struct MintBeesData { uint256 price; // The price of one Bee NFT uint256 pepePrice; // The price of of pepe Bee NFT uint256 multiplier; // The multiplier applied to the price after each NFT mint is completed uint256 pepeMultiplier; // The multiplier applied to the price after each Pepe NFT mint is completed uint256 discountPrice; // The discounted price of a NFT during a sale must buy 5 uint256 pepeDiscountPrice; // The discounted price of a Pepe NFT during a sale must buy 5 uint16 maxHoneycombSupplyMint; // The maximum number of NFTs that can be minted during the sale uint16 maxMintPerWallet; // The maximum number of NFTs that a wallet can mint (5) uint8 status; // The current status of the NFT sale (see above for mapping) } struct HoneyMintParams { uint256 tokenAmount; uint16 amount; bytes signature; } //Check status mapping above for more info event statusChanged(uint8 status); error InvalidSignature(); error MintingError(); error TokenDoesNotExist(); error AccessError(); error WithdrawError(); error MinterIsContract(); error InsufficientFunds(); error HiveAlreadyStarted(); error MintingSupplyError(); error MetadataAlreadyGenerated(); constructor( string memory _name, string memory _symbol, string memory _baseURI, uint16 _maxMintSupply, uint16 _maxMintPerWallet, address _admin, address _signer, address _pepe ) ERC721AOS(_name, _symbol) { stakeSupplyStart = _maxMintSupply; metamorphosisURI = _baseURI; pepeContract = IERC20(_pepe); honeykeeper = owner(); // extraQueenURI = string(abi.encodePacked(_baseURI, "/queens")); beesParams = MintBeesData({ price: 0.045 ether, pepePrice: 49477000 ether, multiplier: 0.01 ether, pepeMultiplier: 10000000 ether, discountPrice: 0.025 ether, pepeDiscountPrice: 27382139 ether, maxHoneycombSupplyMint: _maxMintSupply, maxMintPerWallet: _maxMintPerWallet, status: 0 }); beekeeper = _admin; signerAddress = _signer; _setDefaultRoyalty(_admin, 700); emit statusChanged(0); } // *************************************************************** // MODIFIERS // *************************************************************** /** * @dev Modifier to ensure the minted amount does not exceed the maximum total supply * for the hive. Reverts the transaction with a `MintingError` if the requested * mint amount would cause the total supply to exceed the maximum allowed for the hive. * The supply is determined if the hive exists or not. (Hive is stake contract) * * @param _amount uint256 - The number of bee NFTs to mint. */ modifier maxHoneycombSupplyMint(uint256 _amount) { //Set it to the mint supply first uint256 supply = beesParams.maxHoneycombSupplyMint; if (beesParams.status == 4) { supply = maxTotalSupply; // If hive status is 4 (hive on), use the maximum total supply instead of the mint supply } // Revert the transaction if the total supply plus the requested amount exceeds the maximum supply if (totalSupply() + _amount > supply) { revert MintingError(); } _; } /** * @dev Modifier to ensure that the contract is not locked (Beehive lock), enabling certain * actions to be performed. Reverts the transaction with an `AccessError` * if the contract is locked (Beehive lock). */ modifier noBeehiveLock() { // Revert the transaction if the contract is locked if (locked) { revert AccessError(); } _; } /** * @dev Modifier to ensure that the caller is not a contract. This is useful for * preventing potential exploits or automated actions from contracts. * Reverts the transaction with a `MinterNotContract` error if the caller is a contract. */ modifier beeCallerOnly() { // Revert the transaction if the caller is a contract if (msg.sender != tx.origin) { revert MinterIsContract(); } _; } /** * @dev Modifier to ensure that the caller has beekeeper (admin) `honeylistAccess`. Reverts the * transaction with an `AccessError` if the caller is not an authorized beekeeper. */ modifier beekeeperAccess() { // Revert the transaction if the caller is not an authorized beekeeper if (beekeeper != msg.sender) { revert AccessError(); } _; } /** * @dev hive: * Modifier to ensure that the Hive staking is currently enabled. Reverts the * transaction with a MintingError if the staking is not currently enabled. */ modifier hive() { // If the staking is not currently enabled, revert the transaction with a MintingError if (beesParams.status < 3) revert MintingError(); _; } /** * @dev isHive: * Modifier to ensure that the caller is the Hive contract address. This is useful for * ensuring that certain functions can only be called by the Hive contract. * Reverts the transaction with an AccessError if the caller is not the Hive address. */ modifier isHive() { // If the caller is not the Hive address, revert the transaction with an AccessError if (msg.sender != hiveContract) revert AccessError(); _; } /** * @dev Modifier to ensure that the transaction is authorized by checking the provided * signature and custom data hash. The signature must be signed by the contract owner. * Reverts the transaction with an `InvalidSignature` error if the authorization fails. * * @param _signature bytes - The signature to verify the caller's `honeylistAccess`. * @param _hashMessage bytes32 - The hash of the custom data to verify the signature. */ modifier hiveBouncer(bytes memory _signature, bytes32 _hashMessage) { // Generate the prefixed hash of the message using the EIP-191 standard bytes32 prefixedHashMessage = keccak256( abi.encodePacked("\x19Ethereum Signed Message:\n32", _hashMessage) ); // Split the signature into its v, r, and s components (uint8 v, bytes32 r, bytes32 s) = signatureToVRS(_signature); // Recover the address of the signer from the signature address signer = ecrecover(prefixedHashMessage, v, r, s); // Revert the transaction if the signer is not the contract owner if (signer != signerAddress) { revert InvalidSignature(); } _; } // *************************************************************** // ADMIN/OWNER OPERATIONS // *************************************************************** /** * @dev lockBeehive: * Function to lock the contract and prevent further modifications. Only the owner * of the contract can perform this action. The contract must not be already locked. */ function lockBeehive() public onlyOwner noBeehiveLock { locked = true; } /** * @dev This function sets the address of the signer. * @notice Can only be called by an account with the beekeeper role. * @param _signer The address of the new signer. */ function addSigner(address _signer) public beekeeperAccess { signerAddress = _signer; } /** * @dev swarmUpdate: * Function to start the bee swarm and enable bee NFT minting. Only the owner * of the contract can perform this action. This will enable the honeylist sale and * set the swarm to active. */ function swarmUpdate(uint8 _status) public beekeeperAccess { if(hiveStarted) { if(_status != 0 && _status != 4) { revert HiveAlreadyStarted(); } } beesParams.status = _status; emit statusChanged(_status); } /** * @dev This function sets the address of the token contract to interact with. * @notice Can only be called by an account with the beekeeper role. * @param _token The address of the token contract. */ function addToken(address _token) public beekeeperAccess { pepeContract = IERC20(_token); } /** * @dev setBeekeeper: * Function to add or remove a beekeeper role. Only the owner * of the contract can perform this action. This will grant or revoke the beekeeper * role for the specified address. * * @param _admin address - The address of the beekeeper to add or remove. */ function setBeekeeper(address _admin, bool finance) public onlyOwner { //We dont add lock here because we want to be able to change beekeeper in case of community take over long into the future. //When contract is locked beekeeper has very limited access. if(finance) { honeykeeper = _admin; } else { beekeeper = _admin; } } /** * @dev Function to enable a new Hive staking contract. Only users with the beekeeper role * can perform this action. This will enable the Hive staking contract. * * Requirements: * - The caller must have `beekeeper` access. * - The contract must not be locked (Beehive lock). */ function enableHive() public beekeeperAccess noBeehiveLock { // If the `hiveContract` address is not set, revert the transaction with an AccessError if (hiveContract == address(0)) { revert AccessError(); } // Enable the Hive staking contract by updating the `status` parameter in the `beesParams` struct beesParams.status = 4; hiveStarted = true; // Emit an event to signal that the `status` parameter has been changed emit statusChanged(beesParams.status); } /** * @dev Changes the pricing parameters of the contract. Only updates parameters if the new values are greater than zero. * Sending a value of 0 for a parameter will allow changing other parameters without impacting the one with the 0 value. * @notice Can only be called by an account with the beekeeper role and when the beehive is not locked. * @param _price The new price. Set to 0 to leave unchanged. * @param _pepePrice The new Pepe price. Set to 0 to leave unchanged. * @param _multiplier The new multiplier. Set to 0 to leave unchanged. * @param pepeMultiplier The new Pepe multiplier. Set to 0 to leave unchanged. * @param discountPrice The new discount price. Set to 0 to leave unchanged. * @param pepeDiscountPrice The new Pepe discount price. Set to 0 to leave unchanged. * @return Updated parameters of the bees. */ function changePrice(uint256 _price, uint256 _pepePrice, uint256 _multiplier, uint256 pepeMultiplier, uint256 discountPrice, uint256 pepeDiscountPrice) public beekeeperAccess noBeehiveLock returns (MintBeesData memory) { if(_price > 0) { beesParams.price = _price; } if(_pepePrice > 0) { beesParams.pepePrice = _pepePrice; } if(_multiplier > 0) { beesParams.multiplier = _multiplier; } if(pepeMultiplier > 0) { beesParams.pepeMultiplier = pepeMultiplier; } if(discountPrice > 0) { beesParams.discountPrice = discountPrice; } if(pepeDiscountPrice > 0) { beesParams.pepeDiscountPrice = pepeDiscountPrice; } return beesParams; } /** * @dev setHive: * Function to set the address of the Hive contract. Only a beekeeper can perform this action * and only if the contract is not locked. * * @param _hiveContract address - The address of the Hive contract. */ function setHive( address _hiveContract ) public noBeehiveLock beekeeperAccess { // Set the Hive contract address hiveContract = _hiveContract; } /** * @dev setHiveExpansionData: * Function to set the maximum hive expansion supply and maximum expansion per wallet. * Only the owner of the beehive can perform this action. The beehive must not be locked. * @param _maxMintSupply The maximum number of hive expansions that can be added. * @param _maxMintPerWallet The maximum number of hive expansions that can be added per wallet. */ function setHiveExpansionData( uint16 _maxMintSupply, uint16 _maxMintPerWallet ) public beekeeperAccess noBeehiveLock { beesParams.maxHoneycombSupplyMint = _maxMintSupply; beesParams.maxMintPerWallet = _maxMintPerWallet; } /** * @dev adjustStakeSupplyStart: * Function to adjust the stake supply start index. Only a beekeeper can perform this action * and only if the contract is not in Hive mode. * * This method is needed because if the public sale does not sell out, the stake supply start index * needs to be adjusted so that the token IDs are correct. */ function adjustStakeSupplyStart() public beekeeperAccess { // Adjust the stake supply start index incase the public sale does not sell out if (hiveStarted) revert HiveAlreadyStarted(); stakeSupplyStart = uint16(totalSupply() + 1); } /** * @dev addQueenHash: * Function for a beekeeper to add a new queen bee hash value to the hive. * If a hash value has already been revealed, the function will revert. * @param _queenHash The hash value for the new queen bee. */ function addQueenHash(bytes32 _queenHash) external beekeeperAccess { // If a hash value has already been revealed, revert. if (queenHash != 0) revert AccessError(); queenHash = _queenHash; } // *************************************************************** // REVANUE OPERATIONS // *************************************************************** /** * @dev Function to withdraw the contract balance to the admin. Anyone * with access to the contract can perform this action. * * Requirements: * - The contract must have a non-zero balance. */ function withdraw() public onlyOwner { // Get the current balance of the contract uint256 balance = address(this).balance; // Transfer the balance to the `beekeeper` address (bool success, ) = honeykeeper.call{value: balance}(""); // Revert the transaction with a WithdrawError if the transfer was not successful if (!success) { revert WithdrawError(); } } /** * @dev Function to withdraw Pepe tokens from the contract to the `beekeeper` address. * * Requirements: * - The contract must have a non-zero balance of the specified Pepe token. */ function withdrawPepe() public onlyOwner { // Get the instance of the Pepe token contract // Get the current balance of the Pepe token held by the contract uint256 balance = pepeContract.balanceOf(address(this)); // Transfer the Pepe token balance to the `beekeeper` address bool success = pepeContract.transfer(honeykeeper, balance); // Revert the transaction with a WithdrawError if the transfer was not successful if (!success) { revert WithdrawError(); } } /** * @dev Function to set the royalty information for the specified receiver. * * @param receiver address - The address to set the royalty information for. * @param feeBasisPoints uint96 - The royalty fee basis points to set. * * Requirements: * - The caller must be the owner of the contract. */ function setRoyaltyInfo( address receiver, uint96 feeBasisPoints ) external onlyOwner { // Call the internal `_setDefaultRoyalty` function to set the royalty information _setDefaultRoyalty(receiver, feeBasisPoints); } // *************************************************************** // CONTRACT OPERATIONS // *************************************************************** /** * @dev Function to calculate the total price in ether for a given number of bees. * * @param _amount uint16 - The number of bees to calculate the price for. * * Returns: * - The total price in ether for the specified number of bees. */ function grabHoneyPrice(uint16 _amount) public view returns (uint256) { unchecked { // Get the current status of the contract uint256 sale = beesParams.status; // Calculate the total price based on the current contract status and the number of bees uint256 price = (beesParams.price + sale * beesParams.multiplier) * _amount; // Apply discount if purchasing 5 bees if (_amount == 5) { price -= beesParams.discountPrice; } // //check eth balance of user and see if they can afford it // uint256 userBalance = address(msg.sender).balance; // if (userBalance < price) { // revert InsufficientFunds(); // } // Return the total price return price; } } /** * @dev grabHoneyPepe: * Function to calculate the total price for minting a specified number of honeycomb tokens with Pepe. * Reverts if the specified number of honeycomb tokens is zero or exceeds the maximum allowed per wallet. * @param _amount uint16 - The number of honeycomb tokens to calculate the total price for. * @return uint256 - The total price in Wei. */ function grabHoneyPepe(uint16 _amount) public view returns (uint256) { unchecked { uint256 sale = beesParams.status; uint256 price = (beesParams.pepePrice + sale * beesParams.pepeMultiplier) * _amount; if (_amount == 5) { price -= beesParams.pepeDiscountPrice; } // uint256 balance = IERC20(pepeContract).balanceOf(msg.sender); // if (balance < price) { // revert InsufficientFunds(); // } return price; } } /** * @dev checkHive: * Private function to check the current status of the honeycomb minting process and revert * with a `MintingError` if certain conditions are not met. * @param _honeyList A boolean indicating whether the honeycomb list should be checked. */ function checkHive(bool _honeyList) private view { uint8 status = beesParams.status; bool isRevealed = metadataHash != 0; if (status == 0 || isRevealed) { revert MintingError(); } if (!_honeyList && status < 3) { revert MintingError(); } if (_honeyList && status > 2) { revert MintingError(); } } /** * @dev setBeeMintingData: * Function to set the minting data for a bee NFT minting transaction. This function is private * and should only be called internally by the contract. * * @param _isHoneylistSale bool - A boolean value indicating whether the minting transaction is part * of the Honeylist sale. * @param _amount uint8 - The number of bee NFTs to mint. * * This function sets the minting data for a bee NFT minting transaction based on whether it is part * of the Honeylist sale or not. The minting data is used to determine the number of bee NFTs that can * be minted per wallet during the sale. */ function setBeeMintingData(bool _isHoneylistSale, uint8 _amount) private { unchecked { if (_isHoneylistSale) { mintingData[msg.sender] = (mintingData[msg.sender] & 0xF0) | ((mintingData[msg.sender] + _amount) & 0x0F); } else { mintingData[msg.sender] = (mintingData[msg.sender] & 0x0F) | (((mintingData[msg.sender] + (_amount << 4)) & 0xF0)); } } } /** * @dev getBeeMintingData: * Function to get the bee NFT minting data for a minter. This function is public and can * be called by anyone. * * @return honeySaleMinted uint8 - The number of bee NFTs minted by the minter during the Honeylist sale. * @return pollenSaleMinted uint8 - The number of bee NFTs minted by the minter during the Pollen sale. * * This function gets the minting data for a minter, which is used to determine the number of bee NFTs * that can be minted per wallet during the sale. The minting data consists of two values: the number * of bee NFTs minted during the Honeylist sale and the number of bee NFTs minted during the Pollen sale. */ function getBeeMintingData() public view returns (uint8 honeySaleMinted, uint8 pollenSaleMinted) { // Get the minter's minting data from the mapping uint8 _mintingData = mintingData[msg.sender]; // Extract the number of bee NFTs minted during the Honeylist sale and the Pollen sale honeySaleMinted = uint8(_mintingData & 0x0F); pollenSaleMinted = uint8((_mintingData & 0xF0) >> 4); } /** * @dev signatureToVRS: * Function to convert a signature in bytes format to its VRS components. * This function is internal and can only be called internally by the contract. * * @param _signature bytes - The signature to convert. * * @return _v uint8 - The V value of the signature. * @return _r bytes32 - The R value of the signature. * @return _s bytes32 - The S value of the signature. * * This function converts a signature in bytes format to its VRS components, which are the * three values used in Ethereum's ECDSA signature scheme. The V value is a single byte value * that represents the recovery ID. The R and S values are 32-byte values that represent the * signature's output. */ function signatureToVRS( bytes memory _signature ) internal pure returns (uint8 _v, bytes32 _r, bytes32 _s) { assembly { _r := mload(add(_signature, 32)) _s := mload(add(_signature, 64)) _v := byte(0, mload(add(_signature, 96))) } return (_v, _r, _s); } // *************************************************************** // MINT OPERATIONS // *************************************************************** /** * @dev apiaryMint: * Function to mint a specified number of bee NFTs during the public sale. * Ensures that the sender is not a contract, the public sale has swarmStarted, * and the transaction doesn't exceed per-transaction or total supply limits. * * @param _amount uint16 - The number of bee NFTs to mint. * * Emits a MintingError event if the requested number of bee NFTs exceeds * the maximum allowed per wallet. */ function apiaryMint( uint16 _amount ) public payable beeCallerOnly maxHoneycombSupplyMint(_amount) { // Ensure that the hive has not been locked and that the public sale has started checkHive(false); // Get the current minting data for the caller (, uint8 publicData) = getBeeMintingData(); // Ensure that the requested number of bee NFTs does not exceed the maximum allowed per wallet if (publicData + _amount > beesParams.maxMintPerWallet) revert MintingError(); // Update the minting data for the caller setBeeMintingData(false, uint8(_amount)); // // Calculate the cost of the bee NFTs // grabHoneyPrice(_amount); // Ensure that the caller has sent enough ether to cover the cost of the bee NFTs if (msg.value < grabHoneyPrice(_amount)) revert MintingError(); // Mint the requested number of bee NFTs and assign them to the caller _mint(msg.sender, _amount); } /** * @dev honeyMint: * Function to mint a specified number of bee NFTs for whitelisted users * during the honeylist sale. Ensures that the sender is not a contract, * the mint has started, and the transaction is authorized by checking * the provided signature and custom data hash. * * @param _amount uint16 - The number of bee NFTs to mint. * @param _signature bytes - The signature to verify the caller's access to honeylist minting. * * Emits a MintingError event if the requested number of bee NFTs exceeds * the maximum allowed per wallet. */ function honeyMint( uint16 _amount, bytes calldata _signature ) external payable beeCallerOnly // Ensures that the sender is not a contract maxHoneycombSupplyMint(_amount) // Ensures that the mint has started and the transaction doesn't exceed limits hiveBouncer( _signature, keccak256(abi.encodePacked(address(this), msg.sender, _amount)) ) // Checks that the transaction is authorized by the contract owner { checkHive(true); // Checks that the hive staking contract is active (uint8 wlData, ) = getBeeMintingData(); // Gets the whitelisted user's minting data if (wlData + _amount > beesParams.maxMintPerWallet) // Checks if the requested minting amount exceeds the maximum allowed per wallet revert MintingError(); setBeeMintingData(true, uint8(_amount)); // Updates the whitelisted user's minting data if (msg.value < grabHoneyPrice(_amount)) revert MintingError(); // Checks if the transaction value is sufficient _mint(msg.sender, _amount); // Mints the specified number of bee NFTs for the whitelisted user } function honeyPollenMint( HoneyMintParams memory params ) external beeCallerOnly maxHoneycombSupplyMint(params.amount) hiveBouncer( params.signature, keccak256( abi.encodePacked(address(this), msg.sender, params.amount) ) ) { checkHive(true); (uint8 wlData, ) = getBeeMintingData(); // Ensure the total mint amount doesn't exceed the max mint per wallet if (wlData + params.amount > beesParams.maxMintPerWallet) { revert MintingError(); } // Update the bee minting data setBeeMintingData(true, uint8(params.amount)); // Check if the provided token amount is enough for the minting process if (params.tokenAmount < grabHoneyPepe(params.amount)) { revert MintingError(); } // Transfer the specified amount of ERC20 tokens from the sender to the contract pepeContract.transferFrom( msg.sender, address(this), params.tokenAmount ); // Mint the new tokens for the sender _mint(msg.sender, params.amount); } /** * @dev pollenMintPublic: * Function to mint a specified number of bee NFTs using Pepe tokens during the public sale. * Ensures that the sender is not a contract, the public sale has not started, and the transaction * doesn't exceed per-transaction or total supply limits. * * @param _tokenAmount uint256 - The amount of Pepe tokens to use for the minting process. * @param _amount uint16 - The number of bee NFTs to mint. * * Emits a MintingError event if the requested number of bee NFTs exceeds * the maximum allowed per wallet or if the ERC20 token address is not approved. */ function pollenMintPublic( uint256 _tokenAmount, uint16 _amount ) external beeCallerOnly maxHoneycombSupplyMint(_amount) { checkHive(false); (, uint8 pollenData) = getBeeMintingData(); // Ensure the total mint amount doesn't exceed the max mint per wallet if (pollenData + _amount > beesParams.maxMintPerWallet) { revert MintingSupplyError(); } // Update the bee minting data setBeeMintingData(false, uint8(_amount)); // Check if the provided token amount is enough for the minting process if (_tokenAmount < grabHoneyPepe(_amount)) { revert MintingError(); } // Transfer the specified amount of ERC20 tokens from the sender to the contract pepeContract.transferFrom( msg.sender, address(this), _tokenAmount ); // Mint the new tokens for the sender _mint(msg.sender, _amount); } /** * @dev gardenMint: * Function to mint a specified number of bee NFTs for free with a specific Garden Pass NFT. * Ensures that the sender is not a contract, the mint has started, and the transaction is authorized * by checking the provided signature and custom data hash. * * @param _amount uint8 - The number of bee NFTs to mint. * @param _allocation uint8 - The maximum number of bee NFTs that can be minted with the Garden Pass NFT. * @param _signature bytes - The signature to verify the caller's access to Garden Pass minting. * * Emits a MintingError event if the requested number of bee NFTs exceeds the maximum allowed per wallet. */ function gardenMint( uint8 _amount, uint8 _allocation, bytes calldata _signature ) external beeCallerOnly maxHoneycombSupplyMint(_amount) hiveBouncer( _signature, keccak256( abi.encodePacked( address(this), msg.sender, _amount, _allocation ) ) ) { // If the contract is locked (Beehive lock), revert the transaction with an AccessError if (beesParams.status == 0) revert MintingError(); // If the contract is already at max supply, revert the transaction with a MintingError if (beesParams.status == 4) revert MintingError(); // Check if the sender has already minted the maximum number of bee NFTs with the Garden Pass NFT uint8 currentMinted = honeyPassMints[msg.sender]; if (currentMinted + _amount > _allocation) revert MintingError(); // Update the bee minting data honeyPassMints[msg.sender] += _amount; // Mint the new tokens for the sender _mint(msg.sender, _amount); } /** * @dev hiveMint: * Function to mint a specified number of bee NFTs for a given address * as a reward from the staking contract, which is the hive. * Ensures that the sender has the appropriate "hive" role, the minted * amount doesn't exceed the total supply limit, and the contract is not locked. * * @param _to address - The address to mint the bee NFTs to. * @param _amount uint256 - The number of bee NFTs to mint. */ function hiveMint( address _to, uint256 _amount ) public hive isHive maxHoneycombSupplyMint(_amount) noBeehiveLock { _mint(_to, _amount); } /** * @dev queenBeeMint: * Function to mint a specified number of bee NFTs for a given address * with admin honeylistAccess, typically reserved for special events or promotions. * Ensures that the sender has the appropriate admin honeylistAccess and the minted * amount doesn't exceed the total supply limit. * * @param _to address - The address to mint the bee NFTs to. * @param _amount uint256 - The number of bee NFTs to mint. */ function queenBeeMint( address _to, uint256 _amount ) public beekeeperAccess maxHoneycombSupplyMint(_amount) noBeehiveLock { if(hiveStarted) revert MintingError(); _mint(_to, _amount); } // *************************************************************** // METADATA OPERATIONS // *************************************************************** /** * @dev metamorphosis: * Function to set the base URI for bee NFTs and update the reveal status of the contract. * This function is public and can only be called by beekeepers. * * @param _uri string - The new base URI to set for bee NFTs. * @param _metadataHash bytes32 - The hash of the metadata for the bee NFTs. * @param _queenHash bytes32 - The hash of the queen bee NFT metadata. * * This function sets the base URI for bee NFTs to a new value and updates the reveal status of the contract. * The base URI is the prefix to all token URIs, which are used to uniquely identify each bee NFT. * The reveal status determines whether or not the metadata for the bee NFTs is publicly visible. */ function metamorphosis( string memory _uri, string memory _ipfsHash, bytes32 _metadataHash, bytes32 _queenHash ) external beekeeperAccess { //TODO: Make sure we can set a metadata URI in case if IPFS issues //Also make sure that when contract is locked we can still set the metadata URI, but not the hash (This keeps intgrity of the art) //since the hash is techically the file contents. THis lets us change hosts if we need to without breaking the art. (Users know the art is the same since the hash can't change) if (metadataHash == 0) { metadataHash = _metadataHash; queenHash = _queenHash; } metamorphosisURI = _uri; //Add lock here instead of modifier to allow for metadata URI changes in case of IPFS host issues if(locked == false) metamorphosisHash = _ipfsHash; } function fixBeforeReveal(string memory uri) external beekeeperAccess { if(metadataHash != 0) revert MetadataAlreadyGenerated(); metamorphosisURI = uri; } /** * @dev metamorphosisURI: * Function to get the metadata URI for a bee NFT based on its token ID. * This function is public and can be called by anyone. * * @param _tokenId uint256 - The token ID of the bee NFT to get the metadata URI for. * * @return string - The metadata URI for the bee NFT. * * This function gets the metadata URI for a bee NFT based on its token ID. If the token ID is * within the first 10,000 IDs minted, it determines the metadata URI based on the current seed value. * If the seed value is not set, it returns the base URI for the bee NFTs. If the token ID is not within * the first 10,000 IDs minted, it gets the metadata URI from the hive contract using the token ID. */ function getMetamorphosisURI( uint256 _tokenId ) public view returns (string memory) { if (_tokenId < stakeSupplyStart) { if (metadataHash == 0) { return metamorphosisURI; } else { return string( abi.encodePacked( metamorphosisURI, "/", metamorphosisHash, "/Bee_", Strings.toString(_tokenId), ".json" ) ); } } else { return StakedNFTMetadata(hiveContract).getMetadata(_tokenId); } } // *************************************************************** // OVERRIDES // *************************************************************** function tokenURI( uint256 _tokenId ) public view virtual override returns (string memory) { if (!_exists(_tokenId)) { revert TokenDoesNotExist(); } return string(getMetamorphosisURI(_tokenId)); } function supportsInterface( bytes4 interfaceId ) public view override(ERC721AOS, ERC2981) returns (bool) { return super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.19; import "@openzeppelin/contracts/access/Ownable.sol"; import "./ERC721A.sol"; import "./OperatorFilterer.sol"; import "./lib/Constants.sol"; import {CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS, CANONICAL_CORI_SUBSCRIPTION} from "./lib/Constants.sol"; abstract contract ERC721AOS is ERC721A, OperatorFilterer, Ownable { error RegistryHasBeenRevoked(); error OnlyOwner(); bool isOperatorFilterRegistryRevoked = false; constructor(string memory name, string memory symbol) ERC721A(name, symbol) OperatorFilterer(CANONICAL_CORI_SUBSCRIPTION, true) { } /*************************************************************************** * Operator Filterer */ /** * @dev See {IERC721-setApprovalForAll}. * In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry. */ function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } /** * @dev See {IERC721-approve}. * In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry. */ function approve(address operator, uint256 tokenId) public payable override onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } /** * @dev See {IERC721-transferFrom}. * In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry. */ function transferFrom(address from, address to, uint256 tokenId) public payable override onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. * In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry. */ function safeTransferFrom(address from, address to, uint256 tokenId) public payable override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. * In this example the added modifier ensures that the operator is allowed by the OperatorFilterRegistry. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public payable override onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } function enableOperatorFunction(address subscriber) public onlyOwner { _registerForOperatorFiltering(subscriber, true); } function disableOperatorFunction(address subscriber) public onlyOwner { _registerForOperatorFiltering(subscriber, false); } function disableOperatorFilterer(bool _isDisabled) external onlyOwner { isDisabled = _isDisabled; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A) returns (bool) { return super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; import "../../interfaces/IERC2981.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.2) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _ownerOf(tokenId); require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner or approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _ownerOf(tokenId) != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId, 1); // Check that tokenId was not minted by `_beforeTokenTransfer` hook require(!_exists(tokenId), "ERC721: token already minted"); unchecked { // Will not overflow unless all 2**256 token ids are minted to the same owner. // Given that tokens are minted one by one, it is impossible in practice that // this ever happens. Might change if we allow batch minting. // The ERC fails to describe this case. _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId, 1); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId, 1); // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook owner = ERC721.ownerOf(tokenId); // Clear approvals delete _tokenApprovals[tokenId]; unchecked { // Cannot overflow, as that would require more tokens to be burned/transferred // out than the owner initially received through minting and transferring in. _balances[owner] -= 1; } delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId, 1); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId, 1); // Check that tokenId was not transferred by `_beforeTokenTransfer` hook require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); // Clear approvals from the previous owner delete _tokenApprovals[tokenId]; unchecked { // `_balances[from]` cannot overflow for the same reason as described in `_burn`: // `from`'s balance is the number of token held, which is at least one before the current // transfer. // `_balances[to]` could overflow in the conditions described in `_mint`. That would require // all 2**256 token ids to be minted, which in practice is impossible. _balances[from] -= 1; _balances[to] += 1; } _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId, 1); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`. * - When `from` is zero, the tokens will be minted for `to`. * - When `to` is zero, ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} /** * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`. * - When `from` is zero, the tokens were minted for `to`. * - When `to` is zero, ``from``'s tokens were burned. * - `from` and `to` are never both zero. * - `batchSize` is non-zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} /** * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. * * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such * that `ownerOf(tokenId)` is `a`. */ // solhint-disable-next-line func-name-mixedcase function __unsafe_increaseBalance(address account, uint256 amount) internal { _balances[account] += amount; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; address constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E; address constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol"; import {CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS} from "./lib/Constants.sol"; /** * @title OperatorFilterer * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another * registrant's entries in the OperatorFilterRegistry. * @dev This smart contract is meant to be inherited by token contracts so they can use the following: * - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods. * - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods. * Please note that if your token contract does not provide an owner with EIP-173, it must provide * administration methods on the contract itself to interact with the registry otherwise the subscription * will be locked to the options set during construction. */ abstract contract OperatorFilterer { /// @dev Emitted when an operator is not allowed. error OperatorNotAllowed(address operator); bool isDisabled = false; IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY = IOperatorFilterRegistry(CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS); /// @dev The constructor that is called when the contract is being deployed. constructor(address subscriptionOrRegistrantToCopy, bool subscribe) { // If an inheriting token contract is deployed to a network without the registry deployed, the modifier // will not revert, but the contract will need to be registered with the registry once it is deployed in // order for the modifier to filter addresses. if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { if (subscribe) { OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy); } else { if (subscriptionOrRegistrantToCopy != address(0)) { OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy); } else { OPERATOR_FILTER_REGISTRY.register(address(this)); } } } } /** * @dev A helper function to check if an operator is allowed. */ modifier onlyAllowedOperator(address from) virtual { // Allow spending tokens from addresses with balance // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred // from an EOA. if (from != msg.sender) { _checkFilterOperator(msg.sender); } _; } /** * @dev A helper function to check if an operator approval is allowed. */ modifier onlyAllowedOperatorApproval(address operator) virtual { _checkFilterOperator(operator); _; } function _registerForOperatorFiltering(address subscriptionOrRegistrantToCopy, bool subscribe) internal virtual { /// @solidity memory-safe-assembly assembly { let functionSelector := 0x7d3e3dbe // `registerAndSubscribe(address,address)`. // Clean the upper 96 bits of `subscriptionOrRegistrantToCopy` in case they are dirty. subscriptionOrRegistrantToCopy := shr(96, shl(96, subscriptionOrRegistrantToCopy)) for {} iszero(subscribe) {} { if iszero(subscriptionOrRegistrantToCopy) { functionSelector := 0x4420e486 // `register(address)`. break } functionSelector := 0xa0af2903 // `registerAndCopyEntries(address,address)`. break } // Store the function selector. mstore(0x00, shl(224, functionSelector)) // Store the `address(this)`. mstore(0x04, address()) // Store the `subscriptionOrRegistrantToCopy`. mstore(0x24, subscriptionOrRegistrantToCopy) // Register into the registry. if iszero(call(gas(), CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS, 0, 0x00, 0x44, 0x00, 0x04)) { // If the function selector has not been overwritten, // it is an out-of-gas error. if eq(shr(224, mload(0x00)), functionSelector) { // To prevent gas under-estimation. revert(0, 0) } } // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, because of Solidity's memory size limits. mstore(0x24, 0) } } /** * @dev A helper function to check if an operator is allowed. */ function _checkFilterOperator(address operator) internal view virtual { // Check registry code length to facilitate testing in environments without a deployed registry. if(isDisabled) { return; } if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) { // under normal circumstances, this function will revert rather than return false, but inheriting contracts // may specify their own OperatorFilterRegistry implementations, which may behave differently if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) { revert OperatorNotAllowed(operator); } } } function isContractBeingFiltered(address contractAddress) public view returns (bool) { bool isAble = OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), contractAddress); return isAble; } }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; import "./IERC721A.sol"; /** * @dev Interface of ERC721 token receiver. */ interface ERC721A__IERC721Receiver { function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } /** * @title ERC721A * * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721) * Non-Fungible Token Standard, including the Metadata extension. * Optimized for lower gas during batch mints. * * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...) * starting from `_startTokenId()`. * * Assumptions: * * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply. * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256). */ contract ERC721A is IERC721A { // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364). struct TokenApprovalRef { address value; } // ============================================================= // CONSTANTS // ============================================================= // Mask of an entry in packed address data. uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1; // The bit position of `numberMinted` in packed address data. uint256 private constant _BITPOS_NUMBER_MINTED = 64; // The bit position of `numberBurned` in packed address data. uint256 private constant _BITPOS_NUMBER_BURNED = 128; // The bit position of `aux` in packed address data. uint256 private constant _BITPOS_AUX = 192; // Mask of all 256 bits in packed address data except the 64 bits for `aux`. uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1; // The bit position of `startTimestamp` in packed ownership. uint256 private constant _BITPOS_START_TIMESTAMP = 160; // The bit mask of the `burned` bit in packed ownership. uint256 private constant _BITMASK_BURNED = 1 << 224; // The bit position of the `nextInitialized` bit in packed ownership. uint256 private constant _BITPOS_NEXT_INITIALIZED = 225; // The bit mask of the `nextInitialized` bit in packed ownership. uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225; // The bit position of `extraData` in packed ownership. uint256 private constant _BITPOS_EXTRA_DATA = 232; // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`. uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1; // The mask of the lower 160 bits for addresses. uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1; // The maximum `quantity` that can be minted with {_mintERC2309}. // This limit is to prevent overflows on the address data entries. // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309} // is required to cause an overflow, which is unrealistic. uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000; // The `Transfer` event signature is given by: // `keccak256(bytes("Transfer(address,address,uint256)"))`. bytes32 private constant _TRANSFER_EVENT_SIGNATURE = 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef; // ============================================================= // STORAGE // ============================================================= // The next token ID to be minted. uint256 private _currentIndex; // The number of tokens burned. uint256 private _burnCounter; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to ownership details // An empty struct value does not necessarily mean the token is unowned. // See {_packedOwnershipOf} implementation for details. // // Bits Layout: // - [0..159] `addr` // - [160..223] `startTimestamp` // - [224] `burned` // - [225] `nextInitialized` // - [232..255] `extraData` mapping(uint256 => uint256) private _packedOwnerships; // Mapping owner address to address data. // // Bits Layout: // - [0..63] `balance` // - [64..127] `numberMinted` // - [128..191] `numberBurned` // - [192..255] `aux` mapping(address => uint256) private _packedAddressData; // Mapping from token ID to approved address. mapping(uint256 => TokenApprovalRef) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // ============================================================= // CONSTRUCTOR // ============================================================= constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; _currentIndex = _startTokenId(); } // ============================================================= // TOKEN COUNTING OPERATIONS // ============================================================= /** * @dev Returns the starting token ID. * To change the starting token ID, please override this function. */ function _startTokenId() internal view virtual returns (uint256) { return 0; } /** * @dev Returns the next token ID to be minted. */ function _nextTokenId() internal view virtual returns (uint256) { return _currentIndex; } /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() public view virtual override returns (uint256) { // Counter underflow is impossible as _burnCounter cannot be incremented // more than `_currentIndex - _startTokenId()` times. unchecked { return _currentIndex - _burnCounter - _startTokenId(); } } /** * @dev Returns the total amount of tokens minted in the contract. */ function _totalMinted() internal view virtual returns (uint256) { // Counter underflow is impossible as `_currentIndex` does not decrement, // and it is initialized to `_startTokenId()`. unchecked { return _currentIndex - _startTokenId(); } } /** * @dev Returns the total number of tokens burned. */ function _totalBurned() internal view virtual returns (uint256) { return _burnCounter; } // ============================================================= // ADDRESS DATA OPERATIONS // ============================================================= /** * @dev Returns the number of tokens in `owner`'s account. */ function balanceOf( address owner ) public view virtual override returns (uint256) { if (owner == address(0)) revert BalanceQueryForZeroAddress(); return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens minted by `owner`. */ function _numberMinted(address owner) internal view returns (uint256) { return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the number of tokens burned by or on behalf of `owner`. */ function _numberBurned(address owner) internal view returns (uint256) { return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY; } /** * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). */ function _getAux(address owner) internal view returns (uint64) { return uint64(_packedAddressData[owner] >> _BITPOS_AUX); } /** * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). * If there are multiple variables, please pack them into a uint64. */ function _setAux(address owner, uint64 aux) internal virtual { uint256 packed = _packedAddressData[owner]; uint256 auxCasted; // Cast `aux` with assembly to avoid redundant masking. assembly { auxCasted := aux } packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX); _packedAddressData[owner] = packed; } // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface( bytes4 interfaceId ) public view virtual override returns (bool) { // The interface IDs are constants representing the first 4 bytes // of the XOR of all function selectors in the interface. // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165) // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`) return interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165. interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721. interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata. } // ============================================================= // IERC721Metadata // ============================================================= /** * @dev Returns the token collection name. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the token collection symbol. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI( uint256 tokenId ) public view virtual override returns (string memory) { if (!_exists(tokenId)) revert URIQueryForNonexistentToken(); // string memory baseURI = _baseURI(); return bytes("").length != 0 ? string(abi.encodePacked("", _toString(tokenId))) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, it can be overridden in child contracts. */ // function _baseURI() internal view virtual returns (string memory) { // return ""; // } // ============================================================= // OWNERSHIPS OPERATIONS // ============================================================= /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf( uint256 tokenId ) public view virtual override returns (address) { return address(uint160(_packedOwnershipOf(tokenId))); } /** * @dev Gas spent here starts off proportional to the maximum mint batch size. * It gradually moves to O(1) as tokens get transferred around over time. */ function _ownershipOf( uint256 tokenId ) internal view virtual returns (TokenOwnership memory) { return _unpackedOwnership(_packedOwnershipOf(tokenId)); } /** * @dev Returns the unpacked `TokenOwnership` struct at `index`. */ function _ownershipAt( uint256 index ) internal view virtual returns (TokenOwnership memory) { return _unpackedOwnership(_packedOwnerships[index]); } /** * @dev Initializes the ownership slot minted at `index` for efficiency purposes. */ function _initializeOwnershipAt(uint256 index) internal virtual { if (_packedOwnerships[index] == 0) { _packedOwnerships[index] = _packedOwnershipOf(index); } } /** * Returns the packed ownership data of `tokenId`. */ function _packedOwnershipOf( uint256 tokenId ) private view returns (uint256) { uint256 curr = tokenId; unchecked { if (_startTokenId() <= curr) if (curr < _currentIndex) { uint256 packed = _packedOwnerships[curr]; // If not burned. if (packed & _BITMASK_BURNED == 0) { // Invariant: // There will always be an initialized ownership slot // (i.e. `ownership.addr != address(0) && ownership.burned == false`) // before an unintialized ownership slot // (i.e. `ownership.addr == address(0) && ownership.burned == false`) // Hence, `curr` will not underflow. // // We can directly compare the packed value. // If the address is zero, packed will be zero. while (packed == 0) { packed = _packedOwnerships[--curr]; } return packed; } } } revert OwnerQueryForNonexistentToken(); } /** * @dev Returns the unpacked `TokenOwnership` struct from `packed`. */ function _unpackedOwnership( uint256 packed ) private pure returns (TokenOwnership memory ownership) { ownership.addr = address(uint160(packed)); ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP); ownership.burned = packed & _BITMASK_BURNED != 0; ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA); } /** * @dev Packs ownership data into a single uint256. */ function _packOwnershipData( address owner, uint256 flags ) private view returns (uint256 result) { assembly { // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. owner := and(owner, _BITMASK_ADDRESS) // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`. result := or( owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags) ) } } /** * @dev Returns the `nextInitialized` flag set if `quantity` equals 1. */ function _nextInitializedFlag( uint256 quantity ) private pure returns (uint256 result) { // For branchless setting of the `nextInitialized` flag. assembly { // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`. result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1)) } } // ============================================================= // APPROVAL OPERATIONS // ============================================================= /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the * zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve( address to, uint256 tokenId ) public payable virtual override { address owner = ownerOf(tokenId); if (_msgSenderERC721A() != owner) if (!isApprovedForAll(owner, _msgSenderERC721A())) { revert ApprovalCallerNotOwnerNorApproved(); } _tokenApprovals[tokenId].value = to; emit Approval(owner, to, tokenId); } /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved( uint256 tokenId ) public view virtual override returns (address) { if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken(); return _tokenApprovals[tokenId].value; } /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} * for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll( address operator, bool approved ) public virtual override { _operatorApprovals[_msgSenderERC721A()][operator] = approved; emit ApprovalForAll(_msgSenderERC721A(), operator, approved); } /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll( address owner, address operator ) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted. See {_mint}. */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _startTokenId() <= tokenId && tokenId < _currentIndex && // If within bounds, _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned. } /** * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`. */ function _isSenderApprovedOrOwner( address approvedAddress, address owner, address msgSender ) private pure returns (bool result) { assembly { // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. owner := and(owner, _BITMASK_ADDRESS) // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean. msgSender := and(msgSender, _BITMASK_ADDRESS) // `msgSender == owner || msgSender == approvedAddress`. result := or(eq(msgSender, owner), eq(msgSender, approvedAddress)) } } /** * @dev Returns the storage slot and value for the approved address of `tokenId`. */ function _getApprovedSlotAndAddress( uint256 tokenId ) private view returns (uint256 approvedAddressSlot, address approvedAddress) { TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId]; // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`. assembly { approvedAddressSlot := tokenApproval.slot approvedAddress := sload(approvedAddressSlot) } } // ============================================================= // TRANSFER OPERATIONS // ============================================================= /** * @dev Transfers `tokenId` from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token * by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) public payable virtual override { uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner(); ( uint256 approvedAddressSlot, address approvedAddress ) = _getApprovedSlotAndAddress(tokenId); // The nested ifs save around 20+ gas over a compound boolean condition. if ( !_isSenderApprovedOrOwner( approvedAddress, from, _msgSenderERC721A() ) ) if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved(); if (to == address(0)) revert TransferToZeroAddress(); _beforeTokenTransfers(from, to, tokenId, 1); // Clear approvals from the previous owner. assembly { if approvedAddress { // This is equivalent to `delete _tokenApprovals[tokenId]`. sstore(approvedAddressSlot, 0) } } // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. unchecked { // We can directly increment and decrement the balances. --_packedAddressData[from]; // Updates: `balance -= 1`. ++_packedAddressData[to]; // Updates: `balance += 1`. // Updates: // - `address` to the next owner. // - `startTimestamp` to the timestamp of transfering. // - `burned` to `false`. // - `nextInitialized` to `true`. _packedOwnerships[tokenId] = _packOwnershipData( to, _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked) ); // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { uint256 nextTokenId = tokenId + 1; // If the next slot's address is zero and not burned (i.e. packed value is zero). if (_packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != _currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. _packedOwnerships[nextTokenId] = prevOwnershipPacked; } } } } emit Transfer(from, to, tokenId); _afterTokenTransfers(from, to, tokenId, 1); } /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public payable virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token * by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public payable virtual override { transferFrom(from, to, tokenId); if (to.code.length != 0) if (!_checkContractOnERC721Received(from, to, tokenId, _data)) { revert TransferToNonERC721ReceiverImplementer(); } } /** * @dev Hook that is called before a set of serially-ordered token IDs * are about to be transferred. This includes minting. * And also called before burning one token. * * `startTokenId` - the first token ID to be transferred. * `quantity` - the amount to be transferred. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _beforeTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Hook that is called after a set of serially-ordered token IDs * have been transferred. This includes minting. * And also called after one token has been burned. * * `startTokenId` - the first token ID to be transferred. * `quantity` - the amount to be transferred. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been * transferred to `to`. * - When `from` is zero, `tokenId` has been minted for `to`. * - When `to` is zero, `tokenId` has been burned by `from`. * - `from` and `to` are never both zero. */ function _afterTokenTransfers( address from, address to, uint256 startTokenId, uint256 quantity ) internal virtual {} /** * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract. * * `from` - Previous owner of the given token ID. * `to` - Target address that will receive the token. * `tokenId` - Token ID to be transferred. * `_data` - Optional data to send along with the call. * * Returns whether the call correctly returned the expected magic value. */ function _checkContractOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { try ERC721A__IERC721Receiver(to).onERC721Received( _msgSenderERC721A(), from, tokenId, _data ) returns (bytes4 retval) { return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert TransferToNonERC721ReceiverImplementer(); } else { assembly { revert(add(32, reason), mload(reason)) } } } } // ============================================================= // MINT OPERATIONS // ============================================================= /** * @dev Mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {Transfer} event for each mint. */ function _mint(address to, uint256 quantity) internal virtual { uint256 startTokenId = _currentIndex; if (quantity == 0) revert MintZeroQuantity(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are incredibly unrealistic. // `balance` and `numberMinted` have a maximum limit of 2**64. // `tokenId` has a maximum limit of 2**256. unchecked { // Updates: // - `balance += quantity`. // - `numberMinted += quantity`. // // We can directly add to the `balance` and `numberMinted`. _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `quantity == 1`. _packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); uint256 toMasked; uint256 end = startTokenId + quantity; // Use assembly to loop and emit the `Transfer` event for gas savings. // The duplicated `log4` removes an extra check and reduces stack juggling. // The assembly, together with the surrounding Solidity code, have been // delicately arranged to nudge the compiler into producing optimized opcodes. assembly { // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. toMasked := and(to, _BITMASK_ADDRESS) // Emit the `Transfer` event. log4( 0, // Start of data (0, since no data). 0, // End of data (0, since no data). _TRANSFER_EVENT_SIGNATURE, // Signature. 0, // `address(0)`. toMasked, // `to`. startTokenId // `tokenId`. ) // The `iszero(eq(,))` check ensures that large values of `quantity` // that overflows uint256 will make the loop run out of gas. // The compiler will optimize the `iszero` away for performance. for { let tokenId := add(startTokenId, 1) } iszero(eq(tokenId, end)) { tokenId := add(tokenId, 1) } { // Emit the `Transfer` event. Similar to above. log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId) } } if (toMasked == 0) revert MintToZeroAddress(); _currentIndex = end; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Mints `quantity` tokens and transfers them to `to`. * * This function is intended for efficient minting only during contract creation. * * It emits only one {ConsecutiveTransfer} as defined in * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309), * instead of a sequence of {Transfer} event(s). * * Calling this function outside of contract creation WILL make your contract * non-compliant with the ERC721 standard. * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309 * {ConsecutiveTransfer} event is only permissible during contract creation. * * Requirements: * * - `to` cannot be the zero address. * - `quantity` must be greater than 0. * * Emits a {ConsecutiveTransfer} event. */ function _mintERC2309(address to, uint256 quantity) internal virtual { uint256 startTokenId = _currentIndex; if (to == address(0)) revert MintToZeroAddress(); if (quantity == 0) revert MintZeroQuantity(); if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit(); _beforeTokenTransfers(address(0), to, startTokenId, quantity); // Overflows are unrealistic due to the above check for `quantity` to be below the limit. unchecked { // Updates: // - `balance += quantity`. // - `numberMinted += quantity`. // // We can directly add to the `balance` and `numberMinted`. _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); // Updates: // - `address` to the owner. // - `startTimestamp` to the timestamp of minting. // - `burned` to `false`. // - `nextInitialized` to `quantity == 1`. _packedOwnerships[startTokenId] = _packOwnershipData( to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) ); emit ConsecutiveTransfer( startTokenId, startTokenId + quantity - 1, address(0), to ); _currentIndex = startTokenId + quantity; } _afterTokenTransfers(address(0), to, startTokenId, quantity); } /** * @dev Safely mints `quantity` tokens and transfers them to `to`. * * Requirements: * * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called for each safe transfer. * - `quantity` must be greater than 0. * * See {_mint}. * * Emits a {Transfer} event for each mint. */ function _safeMint( address to, uint256 quantity, bytes memory _data ) internal virtual { _mint(to, quantity); unchecked { if (to.code.length != 0) { uint256 end = _currentIndex; uint256 index = end - quantity; do { if ( !_checkContractOnERC721Received( address(0), to, index++, _data ) ) { revert TransferToNonERC721ReceiverImplementer(); } } while (index < end); // Reentrancy protection. if (_currentIndex != end) revert(); } } } /** * @dev Equivalent to `_safeMint(to, quantity, '')`. */ function _safeMint(address to, uint256 quantity) internal virtual { _safeMint(to, quantity, ""); } // ============================================================= // BURN OPERATIONS // ============================================================= /** * @dev Equivalent to `_burn(tokenId, false)`. */ function _burn(uint256 tokenId) internal virtual { _burn(tokenId, false); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId, bool approvalCheck) internal virtual { uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); address from = address(uint160(prevOwnershipPacked)); ( uint256 approvedAddressSlot, address approvedAddress ) = _getApprovedSlotAndAddress(tokenId); if (approvalCheck) { // The nested ifs save around 20+ gas over a compound boolean condition. if ( !_isSenderApprovedOrOwner( approvedAddress, from, _msgSenderERC721A() ) ) if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved(); } _beforeTokenTransfers(from, address(0), tokenId, 1); // Clear approvals from the previous owner. assembly { if approvedAddress { // This is equivalent to `delete _tokenApprovals[tokenId]`. sstore(approvedAddressSlot, 0) } } // Underflow of the sender's balance is impossible because we check for // ownership above and the recipient's balance can't realistically overflow. // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. unchecked { // Updates: // - `balance -= 1`. // - `numberBurned += 1`. // // We can directly decrement the balance, and increment the number burned. // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`. _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1; // Updates: // - `address` to the last owner. // - `startTimestamp` to the timestamp of burning. // - `burned` to `true`. // - `nextInitialized` to `true`. _packedOwnerships[tokenId] = _packOwnershipData( from, (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked) ); // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { uint256 nextTokenId = tokenId + 1; // If the next slot's address is zero and not burned (i.e. packed value is zero). if (_packedOwnerships[nextTokenId] == 0) { // If the next slot is within bounds. if (nextTokenId != _currentIndex) { // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. _packedOwnerships[nextTokenId] = prevOwnershipPacked; } } } } emit Transfer(from, address(0), tokenId); _afterTokenTransfers(from, address(0), tokenId, 1); // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times. unchecked { _burnCounter++; } } // ============================================================= // EXTRA DATA OPERATIONS // ============================================================= /** * @dev Directly sets the extra data for the ownership data `index`. */ function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual { uint256 packed = _packedOwnerships[index]; if (packed == 0) revert OwnershipNotInitializedForExtraData(); uint256 extraDataCasted; // Cast `extraData` with assembly to avoid redundant masking. assembly { extraDataCasted := extraData } packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA); _packedOwnerships[index] = packed; } /** * @dev Called during each token transfer to set the 24bit `extraData` field. * Intended to be overridden by the cosumer contract. * * `previousExtraData` - the value of `extraData` before transfer. * * Calling conditions: * * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, `tokenId` will be burned by `from`. * - `from` and `to` are never both zero. */ function _extraData( address from, address to, uint24 previousExtraData ) internal view virtual returns (uint24) {} /** * @dev Returns the next extra data for the packed ownership data. * The returned result is shifted into position. */ function _nextExtraData( address from, address to, uint256 prevOwnershipPacked ) private view returns (uint256) { uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA); return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA; } // ============================================================= // OTHER OPERATIONS // ============================================================= /** * @dev Returns the message sender (defaults to `msg.sender`). * * If you are writing GSN compatible contracts, you need to override this function. */ function _msgSenderERC721A() internal view virtual returns (address) { return msg.sender; } /** * @dev Converts a uint256 to its ASCII string decimal representation. */ function _toString( uint256 value ) internal pure virtual returns (string memory str) { assembly { // The maximum value of a uint256 contains 78 digits (1 byte per digit), but // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned. // We will need 1 word for the trailing zeros padding, 1 word for the length, // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0. let m := add(mload(0x40), 0xa0) // Update the free memory pointer to allocate. mstore(0x40, m) // Assign the `str` to the end. str := sub(m, 0x20) // Zeroize the slot after the string. mstore(str, 0) // Cache the end of the memory to calculate the length later. let end := str // We write the string from rightmost digit to leftmost digit. // The following is essentially a do-while loop that also handles the zero case. // prettier-ignore for { let temp := value } 1 {} { str := sub(str, 1) // Write the character to the pointer. // The ASCII index of the '0' character is 48. mstore8(str, add(48, mod(temp, 10))) // Keep dividing `temp` until zero. temp := div(temp, 10) // prettier-ignore if iszero(temp) { break } } let length := sub(end, str) // Move the pointer 32 bytes leftwards to make room for the length. str := sub(str, 0x20) // Store the length. mstore(str, length) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.13; interface IOperatorFilterRegistry { /** * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns * true if supplied registrant address is not registered. */ function isOperatorAllowed(address registrant, address operator) external view returns (bool); /** * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner. */ function register(address registrant) external; /** * @notice Registers an address with the registry and "subscribes" to another address's filtered operators and codeHashes. */ function registerAndSubscribe(address registrant, address subscription) external; /** * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another * address without subscribing. */ function registerAndCopyEntries(address registrant, address registrantToCopy) external; /** * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner. * Note that this does not remove any filtered addresses or codeHashes. * Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes. */ function unregister(address addr) external; /** * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered. */ function updateOperator(address registrant, address operator, bool filtered) external; /** * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates. */ function updateOperators(address registrant, address[] calldata operators, bool filtered) external; /** * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered. */ function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external; /** * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates. */ function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external; /** * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous * subscription if present. * Note that accounts with subscriptions may go on to subscribe to other accounts - in this case, * subscriptions will not be forwarded. Instead the former subscription's existing entries will still be * used. */ function subscribe(address registrant, address registrantToSubscribe) external; /** * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes. */ function unsubscribe(address registrant, bool copyExistingEntries) external; /** * @notice Get the subscription address of a given registrant, if any. */ function subscriptionOf(address addr) external returns (address registrant); /** * @notice Get the set of addresses subscribed to a given registrant. * Note that order is not guaranteed as updates are made. */ function subscribers(address registrant) external returns (address[] memory); /** * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant. * Note that order is not guaranteed as updates are made. */ function subscriberAt(address registrant, uint256 index) external returns (address); /** * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr. */ function copyEntriesOf(address registrant, address registrantToCopy) external; /** * @notice Returns true if operator is filtered by a given address or its subscription. */ function isOperatorFiltered(address registrant, address operator) external returns (bool); /** * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription. */ function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool); /** * @notice Returns true if a codeHash is filtered by a given address or its subscription. */ function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool); /** * @notice Returns a list of filtered operators for a given address or its subscription. */ function filteredOperators(address addr) external returns (address[] memory); /** * @notice Returns the set of filtered codeHashes for a given address or its subscription. * Note that order is not guaranteed as updates are made. */ function filteredCodeHashes(address addr) external returns (bytes32[] memory); /** * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or * its subscription. * Note that order is not guaranteed as updates are made. */ function filteredOperatorAt(address registrant, uint256 index) external returns (address); /** * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or * its subscription. * Note that order is not guaranteed as updates are made. */ function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32); /** * @notice Returns true if an address has registered */ function isRegistered(address addr) external returns (bool); /** * @dev Convenience method to compute the code hash of an arbitrary contract */ function codeHashOf(address addr) external returns (bytes32); }
// SPDX-License-Identifier: MIT // ERC721A Contracts v4.2.3 // Creator: Chiru Labs pragma solidity ^0.8.4; /** * @dev Interface of ERC721A. */ interface IERC721A { /** * The caller must own the token or be an approved operator. */ error ApprovalCallerNotOwnerNorApproved(); /** * The token does not exist. */ error ApprovalQueryForNonexistentToken(); /** * Cannot query the balance for the zero address. */ error BalanceQueryForZeroAddress(); /** * Cannot mint to the zero address. */ error MintToZeroAddress(); /** * The quantity of tokens minted must be more than zero. */ error MintZeroQuantity(); /** * The token does not exist. */ error OwnerQueryForNonexistentToken(); /** * The caller must own the token or be an approved operator. */ error TransferCallerNotOwnerNorApproved(); /** * The token must be owned by `from`. */ error TransferFromIncorrectOwner(); /** * Cannot safely transfer to a contract that does not implement the * ERC721Receiver interface. */ error TransferToNonERC721ReceiverImplementer(); /** * Cannot transfer to the zero address. */ error TransferToZeroAddress(); /** * The token does not exist. */ error URIQueryForNonexistentToken(); /** * The `quantity` minted with ERC2309 exceeds the safety limit. */ error MintERC2309QuantityExceedsLimit(); /** * The `extraData` cannot be set on an unintialized ownership slot. */ error OwnershipNotInitializedForExtraData(); // ============================================================= // STRUCTS // ============================================================= struct TokenOwnership { // The address of the owner. address addr; // Stores the start time of ownership with minimal overhead for tokenomics. uint64 startTimestamp; // Whether the token has been burned. bool burned; // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}. uint24 extraData; } // ============================================================= // TOKEN COUNTERS // ============================================================= /** * @dev Returns the total number of tokens in existence. * Burned tokens will reduce the count. * To get the total number of tokens minted, please see {_totalMinted}. */ function totalSupply() external view returns (uint256); // ============================================================= // IERC165 // ============================================================= /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) * to learn more about how these ids are created. * * This function call must use less than 30000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); // ============================================================= // IERC721 // ============================================================= /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer( address indexed from, address indexed to, uint256 indexed tokenId ); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval( address indexed owner, address indexed approved, uint256 indexed tokenId ); /** * @dev Emitted when `owner` enables or disables * (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll( address indexed owner, address indexed operator, bool approved ); /** * @dev Returns the number of tokens in `owner`'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, * checking first that contract recipients are aware of the ERC721 protocol * to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move * this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external payable; /** * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external payable; /** * @dev Transfers `tokenId` from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} * whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token * by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external payable; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the * zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external payable; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} * for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved( uint256 tokenId ) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll}. */ function isApprovedForAll( address owner, address operator ) external view returns (bool); // ============================================================= // IERC721Metadata // ============================================================= /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); // ============================================================= // IERC2309 // ============================================================= /** * @dev Emitted when tokens in `fromTokenId` to `toTokenId` * (inclusive) is transferred from `from` to `to`, as defined in the * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard. * * See {_mintERC2309} for more details. */ event ConsecutiveTransfer( uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to ); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "optimizer": { "enabled": true, "runs": 5000000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _name (string): The Gardens NFT
Arg [1] : _symbol (string): BEE
Arg [2] : _baseURI (string): https://violet-unwilling-ptarmigan-756.mypinata.cloud/ipfs/QmPMJePZfQ9srYfqfe7vuWVrHihY3iErS7hVpTwxGaMQCW
Arg [3] : _maxMintSupply (uint16): 10000
Arg [4] : _maxMintPerWallet (uint16): 5
Arg [5] : _admin (address): 0x30e64B8E4bacc2BAEf74AC59D33aB230A2889d50
Arg [6] : _signer (address): 0x726Ab63C8741D1fB840Ed61d83699AF5Fb58bC9A
Arg [7] : _pepe (address): 0x6982508145454Ce325dDbE47a25d4ec3d2311933
-----Encoded View---------------
17 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000180
Arg [3] : 0000000000000000000000000000000000000000000000000000000000002710
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [5] : 00000000000000000000000030e64b8e4bacc2baef74ac59d33ab230a2889d50
Arg [6] : 000000000000000000000000726ab63c8741d1fb840ed61d83699af5fb58bc9a
Arg [7] : 0000000000000000000000006982508145454ce325ddbe47a25d4ec3d2311933
Arg [8] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [9] : 5468652047617264656e73204e46540000000000000000000000000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [11] : 4245450000000000000000000000000000000000000000000000000000000000
Arg [12] : 0000000000000000000000000000000000000000000000000000000000000069
Arg [13] : 68747470733a2f2f76696f6c65742d756e77696c6c696e672d707461726d6967
Arg [14] : 616e2d3735362e6d7970696e6174612e636c6f75642f697066732f516d504d4a
Arg [15] : 65505a6651397372596671666537767557567248696859336945725337685670
Arg [16] : 54777847614d5143570000000000000000000000000000000000000000000000
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