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Latest 25 from a total of 63 transactions
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Batchmint | 22276533 | 23 hrs ago | IN | 0 ETH | 0.00022241 | ||||
Batchmint | 22186814 | 13 days ago | IN | 0 ETH | 0.00039994 | ||||
Batchmint | 22186797 | 13 days ago | IN | 0 ETH | 0.00029511 | ||||
Batchmint | 22167850 | 16 days ago | IN | 0 ETH | 0.00153851 | ||||
Batchmint | 22038843 | 34 days ago | IN | 0 ETH | 0.00143661 | ||||
Batchmint | 22038819 | 34 days ago | IN | 0 ETH | 0.00021928 | ||||
Batchmint | 21965759 | 44 days ago | IN | 0 ETH | 0.00061067 | ||||
Batchmint | 21951500 | 46 days ago | IN | 0 ETH | 0.00070419 | ||||
Batchmint | 21951487 | 46 days ago | IN | 0 ETH | 0.00082114 | ||||
Batchmint | 21939466 | 48 days ago | IN | 0 ETH | 0.00035682 | ||||
Batchmint | 21900924 | 53 days ago | IN | 0 ETH | 0.00042992 | ||||
Batchmint | 21888047 | 55 days ago | IN | 0 ETH | 0.00049458 | ||||
Batchmint | 21881871 | 56 days ago | IN | 0 ETH | 0.00068938 | ||||
Batchmint | 21866839 | 58 days ago | IN | 0 ETH | 0.02458604 | ||||
Batchmint | 21837620 | 62 days ago | IN | 0 ETH | 0.00038654 | ||||
Batchmint | 21837617 | 62 days ago | IN | 0 ETH | 0.00036377 | ||||
Batchmint | 21817248 | 65 days ago | IN | 0 ETH | 0.00053679 | ||||
Batchmint | 21795512 | 68 days ago | IN | 0 ETH | 0.00173155 | ||||
Batchmint | 21795353 | 68 days ago | IN | 0 ETH | 0.00147769 | ||||
Batchmint | 21795319 | 68 days ago | IN | 0 ETH | 0.00123281 | ||||
Batchmint | 21780254 | 70 days ago | IN | 0 ETH | 0.00062863 | ||||
Batchmint | 21581971 | 97 days ago | IN | 0 ETH | 0.01955445 | ||||
Batchmint | 21523283 | 106 days ago | IN | 0 ETH | 0.00841849 | ||||
Batchmint | 21315614 | 135 days ago | IN | 0 ETH | 0.00723655 | ||||
Batchmint | 21315602 | 135 days ago | IN | 0 ETH | 0.02858209 |
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Contract Source Code Verified (Exact Match)
Contract Name:
NFTBatchMinter
Compiler Version
v0.8.23+commit.f704f362
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import {OilXNft} from "./OilXNft.sol"; import "./OilXEnumDeclaration.sol"; import "./WithdrawContracts.sol"; contract NFTBatchMinter is WidthdrawContractsOwnable { OilXNft nftContract; address internal _NFTContractAddress; bool public allowBatchMint; event MintOilXNFT( address indexed to, uint256 indexed tokenId, OilXNftTokenType tokenType, uint256 indexed amountOilX ); /** * for ABI decode event from NFT */ event Transfer( address indexed from, address indexed to, uint256 indexed tokenId ); struct Basket { OilXNftTokenType purchaseNFTtype; uint32 quantity; uint32 amountOilX; } constructor(address _addressOilXNft) WidthdrawContractsOwnable(msg.sender) { nftContract = OilXNft(_addressOilXNft); _NFTContractAddress = _addressOilXNft; allowBatchMint = true; } function getNFTAddress() public view returns (address) { return _NFTContractAddress; } function setOnOff(bool _allowBatchMint) public onlyOwner { allowBatchMint = _allowBatchMint; } function batchmint(bool checkonly, address to, Basket[] memory basket) public onlyOwner { require(allowBatchMint, "Error: batchmint is off"); require(to != address(0), "Error: address is zero"); for (uint8 i = 0; i < basket.length; i++) { /* mint NFTs for each basket position */ for (uint8 amount = 0; amount < basket[i].quantity; amount++) { if (checkonly) { emit MintOilXNFT(to, 0, basket[i].purchaseNFTtype, basket[i].amountOilX); } else { nftContract.safeMint(to, basket[i].purchaseNFTtype, basket[i].amountOilX); } } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/utils/Base64.sol"; import "@openzeppelin/contracts/interfaces/IERC4906.sol"; import "./OilXEnumDeclaration.sol"; import "./WithdrawContracts.sol"; abstract contract NftMetadataRenderer { function getTokenURI(address _addressNft, uint256 _tokenId) public view virtual returns (bytes memory); } /* * @title OilXNft * @author OilXCoin.io Dev Team * @notice Release Tests */ contract OilXNft is ERC721, IERC4906, ERC721Enumerable, AccessControl, WidthdrawContractsAccessControl { bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); bytes32 public constant REWARD_ROLE = keccak256("REWARD_ROLE"); bytes32 public constant META_UPDATER = keccak256("META_UPDATER"); uint256 private _nextTokenId; uint8 public constant feeDecimals = 18; /** contract for rendering onchain or offchain metadata */ address public addressMetaRenderer; /** variables to set the final OilXCoin ERC-20 token contract. Only the OilXCoin contract can update the token sale and fee claimer contract address. */ address public addressOilXCoin; address public addressTokenSaleClaimer; address public addressFeeClaimer; bool public isAddressOilXCoinSet = false; bool public isRewardProgramClosed = false; event OilXClaimed(uint256 tokenId, uint256 amount); event ClaimedFeeIncreased(uint256 tokenId, uint256 feeAmount); event RewardsBlackNFT(uint256 tokenId, uint256 amount); event MintOilXNFT(address indexed to, uint256 indexed tokenId, OilXNftTokenType tokenType, uint256 indexed amountOilX); event AddressOilXCoinChanged(address indexed oldAddress, address indexed newAddress); event AddressFeeClaimerChanged(address indexed oldAddress, address indexed newAddress); event AddressTokenSaleClaimerChanged(address indexed oldAddress, address indexed newAddress); event RewardProgrammClosed(); /** * How many tokens are still up for purchase? */ mapping(OilXNftTokenType => uint256) public remainingToken; /** * How many tokens of a type have been sold? */ mapping(OilXNftTokenType => uint256) public soldTokenType; /** * What token type (PLATINUM, GOLD, SILVER, BLACK) is the tokenid? */ mapping(uint256 => OilXNftTokenType) public tokenIdTokenType; /** * How many tokens can token-id redeem? (e.g. token id 1 can redeem 100.000 tokens) */ mapping(uint256 => uint256) public tokenIdOilXClaimable; /** * How many erc20 tokens were sold in total? * This is important for the ERC20 token claim contract */ uint256 public totalOilXCoinSold; /** * How many Rewards are available for BLACK NFTs */ uint256 public totalOilXCoinReward; /** * OilX amount for each NFT to calculate fees */ mapping(uint256 => uint256) public tokenIdOilXAmount; /** * Fee amount the NFT token-id has been already claimed */ mapping(uint256 => uint256) public tokenIdOilXFeeClaimed; /** * @notice Constructor * @param defaultAdmin The address of the default admin */ constructor(address defaultAdmin) ERC721("OilXNft", "OILX") WidthdrawContractsAccessControl(defaultAdmin) { _grantRole(DEFAULT_ADMIN_ROLE, defaultAdmin); remainingToken[OilXNftTokenType.DIAMOND] = 5 * 1_000_000; remainingToken[OilXNftTokenType.PLATINUM] = 20 * 100_000; remainingToken[OilXNftTokenType.GOLD] = 5_000_000; remainingToken[OilXNftTokenType.SILVER] = 8_000_000; addressMetaRenderer = address(this); } /** * @notice Returns ID of Black NFT for address * @param holder The address of the NFT owner * @return tokenId The ID of the black NFT, or 0 when no black NFT found */ function getHolderBlackTokenID(address holder) public view returns (uint32 tokenId) { uint256 balance = balanceOf(holder); uint256 blackNFTid; for (uint256 i = 0; i < balance; i++) { blackNFTid = tokenOfOwnerByIndex(holder, i); if (tokenIdTokenType[blackNFTid] == OilXNftTokenType.BLACK) { return uint32(blackNFTid); } } return 0; } /** * @notice mint a new OilX NFT * @param to The address of the new NFT owner * @param tokenType The type of the NFT (PLATINUM, GOLD, SILVER, BLACK) * @param oilXTokenClaimable The amount of OILX tokens the NFT can claim */ function safeMint(address to, OilXNftTokenType tokenType, uint256 oilXTokenClaimable) public onlyRole(MINTER_ROLE) { if (tokenType == OilXNftTokenType.SILVER) { require(oilXTokenClaimable % 1000 == 0, "SILVER NFT can only claim a mutiple of 1,000 OILX."); require(oilXTokenClaimable <= 9_000, "SILVER NFT can claim maxium 9,000 OILX."); require( remainingToken[OilXNftTokenType.SILVER] >= oilXTokenClaimable, "Not enough OILX for SILVER NFT left." ); } else if (tokenType == OilXNftTokenType.GOLD) { require(oilXTokenClaimable % 10_000 == 0, "GOLD NFT can only claim a mutiple of 10,000 OILX."); require(oilXTokenClaimable <= 90_000, "GOLD NFT can claim maxium 90,000 OILX."); require(remainingToken[OilXNftTokenType.GOLD] >= oilXTokenClaimable, "Not enough OILX for GOLD NFT left."); } else if (tokenType == OilXNftTokenType.PLATINUM) { require(oilXTokenClaimable == 100_000, "PLATINUM NFT can only claim exact of 100,000 OILX."); require( remainingToken[OilXNftTokenType.PLATINUM] >= oilXTokenClaimable, "Not enough OILX for PLATINUM NFT left." ); } else if (tokenType == OilXNftTokenType.DIAMOND) { require(oilXTokenClaimable == 1_000_000, "DIAMOND NFT can only claim exact of 1,000,000 OILX."); require( remainingToken[OilXNftTokenType.DIAMOND] >= oilXTokenClaimable, "Not enough OILX for DIAMOND NFT left." ); } else if (tokenType == OilXNftTokenType.BLACK) { // black NFT already exists for address? if (getHolderBlackTokenID(to) != 0) { revert("BLACK NFT already exists for address"); } // Rewards program closed? require(!isRewardProgramClosed, "Rewards program closed"); require(oilXTokenClaimable <= 1_000_000, "BLACK NFT maximum OILX amount exceeded."); } else { revert("Invalid NFT type"); } uint256 tokenId = _nextTokenId++; _safeMint(to, tokenId); tokenIdTokenType[tokenId] = tokenType; tokenIdOilXClaimable[tokenId] = oilXTokenClaimable; tokenIdOilXAmount[tokenId] = oilXTokenClaimable; // OilX amount for each NFT to calculate Fees emit MintOilXNFT(to, tokenId, tokenType, oilXTokenClaimable); if (tokenType != OilXNftTokenType.BLACK) { remainingToken[tokenType] -= oilXTokenClaimable; soldTokenType[tokenType]++; totalOilXCoinSold += oilXTokenClaimable; } else { if (tokenId == 0) { revert("TokenID 0 should not be a BlackNFT"); } totalOilXCoinReward += oilXTokenClaimable; } } /** * @notice returns claimable OILX and resets to 0, for a given tokenId * @param tokenId ID of an OilXNFT * @return The amount of OILX which can be claimed */ function resetClaimableOilX(uint256 tokenId) public returns (uint256) { require(msg.sender == addressTokenSaleClaimer, "only token sale claimer contract can use this function"); require(_ownerOf(tokenId) != address(0), "operator query for nonexistent token"); require(tokenIdOilXClaimable[tokenId] > 0, "OilXNft: no OilXCoin to claim"); /* important oilXtoClaim is NOT in 18 decimals */ uint256 oilXToClaim = tokenIdOilXClaimable[tokenId]; tokenIdOilXClaimable[tokenId] = 0; emit OilXClaimed(tokenId, oilXToClaim); emit MetadataUpdate(tokenId); return oilXToClaim; } /** * @notice OilXCoin token contract can set the address of the token sale claimer contract * @param newAddress The address of the new token sale claimer contract */ function setAddressTokenSaleClaimer(address newAddress) public { require(msg.sender == addressOilXCoin, "only OilXCoin contract can use this function"); require(newAddress != address(0), "new address is the zero address"); emit AddressTokenSaleClaimerChanged(addressTokenSaleClaimer, newAddress); addressTokenSaleClaimer = newAddress; } /** * @notice increase BLACK NFT OilX amount for Token ID * @param tokenId The ID of the Black NFT to increase OilX Rewards * @param oilXAmount The amount of OILX to increase */ function increaseOilXRewards(uint256 tokenId, uint256 oilXAmount) public onlyRole(REWARD_ROLE) { require(!isRewardProgramClosed, "Reward program closed"); require(tokenIdTokenType[tokenId] == OilXNftTokenType.BLACK, "only BLACK NFT can collect OilX rewards"); tokenIdOilXAmount[tokenId] += oilXAmount; require(tokenIdOilXAmount[tokenId] <= 1_000_000, "BLACK NFT maximum OILX amount exceeded."); tokenIdOilXClaimable[tokenId] += oilXAmount; totalOilXCoinReward += oilXAmount; emit RewardsBlackNFT(tokenId, oilXAmount); emit MetadataUpdate(tokenId); } function closeRewardProgram() public onlyRole(DEFAULT_ADMIN_ROLE) { require(!isRewardProgramClosed, "Reward program already closed"); isRewardProgramClosed = true; emit RewardProgrammClosed(); } /** * @notice increase amount of claimed ERC-20 fees for NFT. Function will be called by the fee claiming contract * @param tokenId The ID of the NFT to increase the claimed fee amount * @param feeAmount The amount of ERC-20 fees to increase */ function increaseClaimedOilXFee(uint256 tokenId, uint256 feeAmount) public { /* important oilXAmount is in 18 decimals */ require(msg.sender == addressFeeClaimer, "only fee claimer contract can use this function"); require(_ownerOf(tokenId) != address(0), "operator query for nonexistent token"); require(tokenIdTokenType[tokenId] != OilXNftTokenType.BLACK, "BLACK NFT cannot claim fees"); tokenIdOilXFeeClaimed[tokenId] += feeAmount; emit ClaimedFeeIncreased(tokenId, feeAmount); emit MetadataUpdate(tokenId); } /** * @notice OilXCoin token contract can set the address of the fee claimer contract * @param newAddress The address of the new fee claimer contract */ function setAddressFeeClaimer(address newAddress) public { require(msg.sender == addressOilXCoin, "only OilXCoin contract can use this function"); require(newAddress != address(0), "new address is the zero address"); emit AddressFeeClaimerChanged(addressFeeClaimer, newAddress); addressFeeClaimer = newAddress; } /** * @notice set OilXCoin ERC-20 token contract address once * @param finalAddress The address of the OilXCoin ERC-20 token contract */ function setAddressOilXCoin(address finalAddress) public { if ( isAddressOilXCoinSet ) { require(msg.sender == addressOilXCoin, "only OilXCoin contract can use this function"); } else { require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "only admin can use this function"); } require(finalAddress != address(0), "new address is the zero address"); emit AddressOilXCoinChanged(addressOilXCoin, finalAddress); addressOilXCoin = finalAddress; isAddressOilXCoinSet = true; } /** * @notice Contract for rendering onchain or offchain metadata * @param newAddr The address of the contract implementing the NftMeta interface / abstract contract above */ function updateMetaData(address newAddr) public onlyRole(META_UPDATER) { addressMetaRenderer = newAddr; if (totalSupply() > 0) emit BatchMetadataUpdate(0, totalSupply() - 1); } /** * @notice "empty" TokenURI function to be overridden by the metadata rendering contract * @param addressNft of this NFT contract for callbacks * @param tokenId The ID of the NFT to update the metadata */ function getTokenURI(address addressNft, uint256 tokenId) public view returns (bytes memory) { address renderer = OilXNft(addressNft).addressMetaRenderer(); return abi.encodePacked("Metadata not bound", Strings.toHexString(addressNft), " ", Strings.toHexString(renderer), " ", Strings.toString(tokenId)); } /** * @notice ERC-721 Standard TokenURI function * @param tokenId The ID of the NFT to update the metadata */ function tokenURI(uint256 tokenId) public view override returns (string memory) { _requireOwned(tokenId); NftMetadataRenderer metadataRenderer = NftMetadataRenderer(addressMetaRenderer); bytes memory data = metadataRenderer.getTokenURI(address(this), tokenId); return string(abi.encodePacked("data:application/json;base64,", Base64.encode(data))); } // The following functions are overrides required by Solidity. function _update(address to, uint256 tokenId, address auth) internal override(ERC721, ERC721Enumerable) returns (address) { return super._update(to, tokenId, auth); } function _increaseBalance(address account, uint128 value) internal override(ERC721, ERC721Enumerable) { super._increaseBalance(account, value); } function supportsInterface(bytes4 interfaceId) public view override(IERC165, ERC721, ERC721Enumerable, AccessControl) returns (bool) { // https://eips.ethereum.org/EIPS/eip-4906 IERC4906 Events return interfaceId == bytes4(0x49064906) || super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; enum OilXNftTokenType { DIAMOND, PLATINUM, GOLD, SILVER, BLACK }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import "@openzeppelin/contracts/interfaces/IERC20.sol"; import "@openzeppelin/contracts/interfaces/IERC721.sol"; import "@openzeppelin/contracts/interfaces/IERC1155.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; /* * @title Contract to Recover Tokens or ETH sent by mistake to the contract * @author OilXCoin.io Dev Team * @notice Release Tests */ contract WidthdrawContractsOwnable is Ownable { constructor(address _initialOwner) Ownable(_initialOwner) {} event WithdrawERC20(address indexed tokenAddress, address indexed to, uint256 amount); event WithdrawERC721(address indexed tokenAddress, address indexed to, uint256 tokenId); event WithdrawERC1155(address indexed tokenAddress, address indexed to, uint256 tokenId, uint256 amount); event WithdrawETH(address indexed to, uint256 amount); /** * @dev Withdraw all ERC20 tokens from the contract * @param _tokenAddress Address of the ERC20 contract * @param _to Address to send the tokens to */ function withdrawERC20(address _tokenAddress, address _to) public onlyOwner { IERC20 token = IERC20(_tokenAddress); uint256 balance = token.balanceOf(address(this)); emit WithdrawERC20(_tokenAddress, _to, balance); token.transfer(_to, balance); } /** * @dev Withdraw all ERC721 tokens from the contract * @param _tokenAddress Address of the ERC721 contract * @param _to Address to send the tokens to */ function withdrawERC721(address _tokenAddress, address _to, uint256 _tokenId) public onlyOwner { emit WithdrawERC721(_tokenAddress, _to, _tokenId); IERC721(_tokenAddress).safeTransferFrom(address(this), _to, _tokenId); } /** * @dev Withdraw all ERC1155 tokens from the contract * @param _tokenAddress Address of the ERC1155 contract * @param _to Address to send the tokens to */ function withdrawERC1155(address _tokenAddress, address _to, uint256 _tokenId) public onlyOwner { IERC1155 token = IERC1155(_tokenAddress); uint256 balance = token.balanceOf(address(this), _tokenId); emit WithdrawERC1155(_tokenAddress, _to, _tokenId, balance); token.safeTransferFrom(address(this), _to, _tokenId, balance, ""); } /** * @dev Withdraw all ETH from the contract */ function withdrawETH(address payable _to) public onlyOwner { uint256 balance = address(this).balance; emit WithdrawETH(_to, balance); _to.transfer(balance); } } /* * @title Contract to Recover Tokens or ETH sent by mistake to the contract * @author OilXCoin.io Dev Team * @notice Release Tests */ contract WidthdrawContractsAccessControl is AccessControl { bytes32 public constant WITHDRAWCONTRACT_ROLE = keccak256("WITHDRAWCONTRACT_ROLE"); constructor(address _initialOwner) { _grantRole(WITHDRAWCONTRACT_ROLE, _initialOwner); } event WithdrawERC20(address indexed tokenAddress, address indexed to, uint256 amount); event WithdrawERC721(address indexed tokenAddress, address indexed to, uint256 tokenId); event WithdrawERC1155(address indexed tokenAddress, address indexed to, uint256 tokenId, uint256 amount); event WithdrawETH(address indexed to, uint256 amount); /** * @dev Withdraw all ERC20 tokens from the contract * @param _tokenAddress Address of the ERC20 contract * @param _to Address to send the tokens to */ function withdrawERC20(address _tokenAddress, address _to) public onlyRole(WITHDRAWCONTRACT_ROLE) { IERC20 token = IERC20(_tokenAddress); uint256 balance = token.balanceOf(address(this)); emit WithdrawERC20(_tokenAddress, _to, balance); token.transfer(_to, balance); } /** * @dev Withdraw all ERC721 tokens from the contract * @param _tokenAddress Address of the ERC721 contract * @param _to Address to send the tokens to */ function withdrawERC721(address _tokenAddress, address _to, uint256 _tokenId) public onlyRole(WITHDRAWCONTRACT_ROLE) { emit WithdrawERC721(_tokenAddress, _to, _tokenId); IERC721(_tokenAddress).safeTransferFrom(address(this), _to, _tokenId); } /** * @dev Withdraw all ERC1155 tokens from the contract * @param _tokenAddress Address of the ERC1155 contract * @param _to Address to send the tokens to */ function withdrawERC1155(address _tokenAddress, address _to, uint256 _tokenId) public onlyRole(WITHDRAWCONTRACT_ROLE) { IERC1155 token = IERC1155(_tokenAddress); uint256 balance = token.balanceOf(address(this), _tokenId); emit WithdrawERC1155(_tokenAddress, _to, _tokenId, balance); token.safeTransferFrom(address(this), _to, _tokenId, balance, ""); } /** * @dev Withdraw all ETH from the contract */ function withdrawETH(address payable _to) public onlyRole(WITHDRAWCONTRACT_ROLE) { uint256 balance = address(this).balance; emit WithdrawETH(_to, balance); _to.transfer(balance); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.20; import {IERC721} from "./IERC721.sol"; import {IERC721Receiver} from "./IERC721Receiver.sol"; import {IERC721Metadata} from "./extensions/IERC721Metadata.sol"; import {Context} from "../../utils/Context.sol"; import {Strings} from "../../utils/Strings.sol"; import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol"; import {IERC721Errors} from "../../interfaces/draft-IERC6093.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ abstract contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Errors { using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; mapping(uint256 tokenId => address) private _owners; mapping(address owner => uint256) private _balances; mapping(uint256 tokenId => address) private _tokenApprovals; mapping(address owner => mapping(address operator => 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 returns (uint256) { if (owner == address(0)) { revert ERC721InvalidOwner(address(0)); } return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual returns (address) { return _requireOwned(tokenId); } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual returns (string memory) { _requireOwned(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string.concat(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 { _approve(to, tokenId, _msgSender()); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual returns (address) { _requireOwned(tokenId); return _getApproved(tokenId); } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom(address from, address to, uint256 tokenId) public virtual { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } // Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists // (from != 0). Therefore, it is not needed to verify that the return value is not 0 here. address previousOwner = _update(to, tokenId, _msgSender()); if (previousOwner != from) { revert ERC721IncorrectOwner(from, tokenId, previousOwner); } } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId) public { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual { transferFrom(from, to, tokenId); _checkOnERC721Received(from, to, tokenId, data); } /** * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist * * IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the * core ERC721 logic MUST be matched with the use of {_increaseBalance} to keep balances * consistent with ownership. The invariant to preserve is 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`. */ function _ownerOf(uint256 tokenId) internal view virtual returns (address) { return _owners[tokenId]; } /** * @dev Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted. */ function _getApproved(uint256 tokenId) internal view virtual returns (address) { return _tokenApprovals[tokenId]; } /** * @dev Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in * particular (ignoring whether it is owned by `owner`). * * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this * assumption. */ function _isAuthorized(address owner, address spender, uint256 tokenId) internal view virtual returns (bool) { return spender != address(0) && (owner == spender || isApprovedForAll(owner, spender) || _getApproved(tokenId) == spender); } /** * @dev Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner. * Reverts if `spender` does not have approval from the provided `owner` for the given token or for all its assets * the `spender` for the specific `tokenId`. * * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this * assumption. */ function _checkAuthorized(address owner, address spender, uint256 tokenId) internal view virtual { if (!_isAuthorized(owner, spender, tokenId)) { if (owner == address(0)) { revert ERC721NonexistentToken(tokenId); } else { revert ERC721InsufficientApproval(spender, tokenId); } } } /** * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override. * * NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that * a uint256 would ever overflow from increments when these increments are bounded to uint128 values. * * WARNING: Increasing an account's balance using this function tends to be paired with an override of the * {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership * remain consistent with one another. */ function _increaseBalance(address account, uint128 value) internal virtual { unchecked { _balances[account] += value; } } /** * @dev Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner * (or `to`) is the zero address. Returns the owner of the `tokenId` before the update. * * The `auth` argument is optional. If the value passed is non 0, then this function will check that * `auth` is either the owner of the token, or approved to operate on the token (by the owner). * * Emits a {Transfer} event. * * NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}. */ function _update(address to, uint256 tokenId, address auth) internal virtual returns (address) { address from = _ownerOf(tokenId); // Perform (optional) operator check if (auth != address(0)) { _checkAuthorized(from, auth, tokenId); } // Execute the update if (from != address(0)) { // Clear approval. No need to re-authorize or emit the Approval event _approve(address(0), tokenId, address(0), false); unchecked { _balances[from] -= 1; } } if (to != address(0)) { unchecked { _balances[to] += 1; } } _owners[tokenId] = to; emit Transfer(from, to, tokenId); return from; } /** * @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 { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } address previousOwner = _update(to, tokenId, address(0)); if (previousOwner != address(0)) { revert ERC721InvalidSender(address(0)); } } /** * @dev Mints `tokenId`, transfers it to `to` and checks for `to` acceptance. * * 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 { _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); _checkOnERC721Received(address(0), to, tokenId, data); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * This is an internal function that does not check if the sender is authorized to operate on the token. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal { address previousOwner = _update(address(0), tokenId, address(0)); if (previousOwner == address(0)) { revert ERC721NonexistentToken(tokenId); } } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer(address from, address to, uint256 tokenId) internal { if (to == address(0)) { revert ERC721InvalidReceiver(address(0)); } address previousOwner = _update(to, tokenId, address(0)); if (previousOwner == address(0)) { revert ERC721NonexistentToken(tokenId); } else if (previousOwner != from) { revert ERC721IncorrectOwner(from, tokenId, previousOwner); } } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients * are aware of the ERC721 standard 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 like {safeTransferFrom} in the sense that it invokes * {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `tokenId` token must exist and be owned by `from`. * - `to` cannot be the zero address. * - `from` cannot be the zero address. * - 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) internal { _safeTransfer(from, to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual { _transfer(from, to, tokenId); _checkOnERC721Received(from, to, tokenId, data); } /** * @dev Approve `to` to operate on `tokenId` * * The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is * either the owner of the token, or approved to operate on all tokens held by this owner. * * Emits an {Approval} event. * * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument. */ function _approve(address to, uint256 tokenId, address auth) internal { _approve(to, tokenId, auth, true); } /** * @dev Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not * emitted in the context of transfers. */ function _approve(address to, uint256 tokenId, address auth, bool emitEvent) internal virtual { // Avoid reading the owner unless necessary if (emitEvent || auth != address(0)) { address owner = _requireOwned(tokenId); // We do not use _isAuthorized because single-token approvals should not be able to call approve if (auth != address(0) && owner != auth && !isApprovedForAll(owner, auth)) { revert ERC721InvalidApprover(auth); } if (emitEvent) { emit Approval(owner, to, tokenId); } } _tokenApprovals[tokenId] = to; } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Requirements: * - operator can't be the address zero. * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll(address owner, address operator, bool approved) internal virtual { if (operator == address(0)) { revert ERC721InvalidOperator(operator); } _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned). * Returns the owner. * * Overrides to ownership logic should be done to {_ownerOf}. */ function _requireOwned(uint256 tokenId) internal view returns (address) { address owner = _ownerOf(tokenId); if (owner == address(0)) { revert ERC721NonexistentToken(tokenId); } return owner; } /** * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target address. This will revert if the * recipient doesn't accept the token transfer. 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 */ function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory data) private { if (to.code.length > 0) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { if (retval != IERC721Receiver.onERC721Received.selector) { revert ERC721InvalidReceiver(to); } } catch (bytes memory reason) { if (reason.length == 0) { revert ERC721InvalidReceiver(to); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.20; import {ERC721} from "../ERC721.sol"; import {IERC721Enumerable} from "./IERC721Enumerable.sol"; import {IERC165} from "../../../utils/introspection/ERC165.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds enumerability * of all the token ids in the contract as well as all token ids owned by each account. * * CAUTION: `ERC721` extensions that implement custom `balanceOf` logic, such as `ERC721Consecutive`, * interfere with enumerability and should not be used together with `ERC721Enumerable`. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { mapping(address owner => mapping(uint256 index => uint256)) private _ownedTokens; mapping(uint256 tokenId => uint256) private _ownedTokensIndex; uint256[] private _allTokens; mapping(uint256 tokenId => uint256) private _allTokensIndex; /** * @dev An `owner`'s token query was out of bounds for `index`. * * NOTE: The owner being `address(0)` indicates a global out of bounds index. */ error ERC721OutOfBoundsIndex(address owner, uint256 index); /** * @dev Batch mint is not allowed. */ error ERC721EnumerableForbiddenBatchMint(); /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual returns (uint256) { if (index >= balanceOf(owner)) { revert ERC721OutOfBoundsIndex(owner, index); } return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual returns (uint256) { if (index >= totalSupply()) { revert ERC721OutOfBoundsIndex(address(0), index); } return _allTokens[index]; } /** * @dev See {ERC721-_update}. */ function _update(address to, uint256 tokenId, address auth) internal virtual override returns (address) { address previousOwner = super._update(to, tokenId, auth); if (previousOwner == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (previousOwner != to) { _removeTokenFromOwnerEnumeration(previousOwner, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (previousOwner != to) { _addTokenToOwnerEnumeration(to, tokenId); } return previousOwner; } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = balanceOf(to) - 1; _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = balanceOf(from); uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } /** * See {ERC721-_increaseBalance}. We need that to account tokens that were minted in batch */ function _increaseBalance(address account, uint128 amount) internal virtual override { if (amount > 0) { revert ERC721EnumerableForbiddenBatchMint(); } super._increaseBalance(account, amount); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol) pragma solidity ^0.8.20; import {IAccessControl} from "./IAccessControl.sol"; import {Context} from "../utils/Context.sol"; import {ERC165} from "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address account => bool) hasRole; bytes32 adminRole; } mapping(bytes32 role => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with an {AccessControlUnauthorizedAccount} error including the required role. */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual returns (bool) { return _roles[role].hasRole[account]; } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()` * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier. */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account` * is missing `role`. */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert AccessControlUnauthorizedAccount(account, role); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `callerConfirmation`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address callerConfirmation) public virtual { if (callerConfirmation != _msgSender()) { revert AccessControlBadConfirmation(); } _revokeRole(role, callerConfirmation); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual returns (bool) { if (!hasRole(role, account)) { _roles[role].hasRole[account] = true; emit RoleGranted(role, account, _msgSender()); return true; } else { return false; } } /** * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual returns (bool) { if (hasRole(role, account)) { _roles[role].hasRole[account] = false; emit RoleRevoked(role, account, _msgSender()); return true; } else { return false; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol) pragma solidity ^0.8.20; import {Math} from "./math/Math.sol"; import {SignedMath} from "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant HEX_DIGITS = "0123456789abcdef"; uint8 private constant ADDRESS_LENGTH = 20; /** * @dev The `value` string doesn't fit in the specified `length`. */ error StringsInsufficientHexLength(uint256 value, uint256 length); /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), HEX_DIGITS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toStringSigned(int256 value) internal pure returns (string memory) { return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { uint256 localValue = value; bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = HEX_DIGITS[localValue & 0xf]; localValue >>= 4; } if (localValue != 0) { revert StringsInsufficientHexLength(value, length); } return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal * representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/Base64.sol) pragma solidity ^0.8.20; /** * @dev Provides a set of functions to operate with Base64 strings. */ library Base64 { /** * @dev Base64 Encoding/Decoding Table */ string internal constant _TABLE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; /** * @dev Converts a `bytes` to its Bytes64 `string` representation. */ function encode(bytes memory data) internal pure returns (string memory) { /** * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol */ if (data.length == 0) return ""; // Loads the table into memory string memory table = _TABLE; // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter // and split into 4 numbers of 6 bits. // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up // - `data.length + 2` -> Round up // - `/ 3` -> Number of 3-bytes chunks // - `4 *` -> 4 characters for each chunk string memory result = new string(4 * ((data.length + 2) / 3)); /// @solidity memory-safe-assembly assembly { // Prepare the lookup table (skip the first "length" byte) let tablePtr := add(table, 1) // Prepare result pointer, jump over length let resultPtr := add(result, 32) // Run over the input, 3 bytes at a time for { let dataPtr := data let endPtr := add(data, mload(data)) } lt(dataPtr, endPtr) { } { // Advance 3 bytes dataPtr := add(dataPtr, 3) let input := mload(dataPtr) // To write each character, shift the 3 bytes (18 bits) chunk // 4 times in blocks of 6 bits for each character (18, 12, 6, 0) // and apply logical AND with 0x3F which is the number of // the previous character in the ASCII table prior to the Base64 Table // The result is then added to the table to get the character to write, // and finally write it in the result pointer but with a left shift // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F)))) resultPtr := add(resultPtr, 1) // Advance } // When data `bytes` is not exactly 3 bytes long // it is padded with `=` characters at the end switch mod(mload(data), 3) case 1 { mstore8(sub(resultPtr, 1), 0x3d) mstore8(sub(resultPtr, 2), 0x3d) } case 2 { mstore8(sub(resultPtr, 1), 0x3d) } } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4906.sol) pragma solidity ^0.8.20; import {IERC165} from "./IERC165.sol"; import {IERC721} from "./IERC721.sol"; /// @title EIP-721 Metadata Update Extension interface IERC4906 is IERC165, IERC721 { /// @dev This event emits when the metadata of a token is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFT. event MetadataUpdate(uint256 _tokenId); /// @dev This event emits when the metadata of a range of tokens is changed. /// So that the third-party platforms such as NFT market could /// timely update the images and related attributes of the NFTs. event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "../token/ERC20/IERC20.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC721.sol) pragma solidity ^0.8.20; import {IERC721} from "../token/ERC721/IERC721.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1155.sol) pragma solidity ^0.8.20; import {IERC1155} from "../token/ERC1155/IERC1155.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {Context} from "../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. * * The initial owner is set to the address provided by the deployer. This can * later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ constructor(address initialOwner) { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or * {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon * a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom(address from, address to, uint256 tokenId) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 tokenId) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the address zero. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.20; /** * @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 v5.0.0) (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.20; import {IERC721} from "../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 v5.0.0) (utils/Context.sol) pragma solidity ^0.8.20; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "./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); * } * ``` */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol) pragma solidity ^0.8.20; /** * @dev Standard ERC20 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens. */ interface IERC20Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC20InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC20InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers. * @param spender Address that may be allowed to operate on tokens without being their owner. * @param allowance Amount of tokens a `spender` is allowed to operate with. * @param needed Minimum amount required to perform a transfer. */ error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC20InvalidApprover(address approver); /** * @dev Indicates a failure with the `spender` to be approved. Used in approvals. * @param spender Address that may be allowed to operate on tokens without being their owner. */ error ERC20InvalidSpender(address spender); } /** * @dev Standard ERC721 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens. */ interface IERC721Errors { /** * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20. * Used in balance queries. * @param owner Address of the current owner of a token. */ error ERC721InvalidOwner(address owner); /** * @dev Indicates a `tokenId` whose `owner` is the zero address. * @param tokenId Identifier number of a token. */ error ERC721NonexistentToken(uint256 tokenId); /** * @dev Indicates an error related to the ownership over a particular token. Used in transfers. * @param sender Address whose tokens are being transferred. * @param tokenId Identifier number of a token. * @param owner Address of the current owner of a token. */ error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC721InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC721InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param tokenId Identifier number of a token. */ error ERC721InsufficientApproval(address operator, uint256 tokenId); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC721InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC721InvalidOperator(address operator); } /** * @dev Standard ERC1155 Errors * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens. */ interface IERC1155Errors { /** * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. * @param balance Current balance for the interacting account. * @param needed Minimum amount required to perform a transfer. * @param tokenId Identifier number of a token. */ error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId); /** * @dev Indicates a failure with the token `sender`. Used in transfers. * @param sender Address whose tokens are being transferred. */ error ERC1155InvalidSender(address sender); /** * @dev Indicates a failure with the token `receiver`. Used in transfers. * @param receiver Address to which tokens are being transferred. */ error ERC1155InvalidReceiver(address receiver); /** * @dev Indicates a failure with the `operator`’s approval. Used in transfers. * @param operator Address that may be allowed to operate on tokens without being their owner. * @param owner Address of the current owner of a token. */ error ERC1155MissingApprovalForAll(address operator, address owner); /** * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals. * @param approver Address initiating an approval operation. */ error ERC1155InvalidApprover(address approver); /** * @dev Indicates a failure with the `operator` to be approved. Used in approvals. * @param operator Address that may be allowed to operate on tokens without being their owner. */ error ERC1155InvalidOperator(address operator); /** * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation. * Used in batch transfers. * @param idsLength Length of the array of token identifiers * @param valuesLength Length of the array of token amounts */ error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.20; import {IERC721} from "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol) pragma solidity ^0.8.20; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev The `account` is missing a role. */ error AccessControlUnauthorizedAccount(address account, bytes32 neededRole); /** * @dev The caller of a function is not the expected one. * * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}. */ error AccessControlBadConfirmation(); /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `callerConfirmation`. */ function renounceRole(bytes32 role, address callerConfirmation) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol) pragma solidity ^0.8.20; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { /** * @dev Muldiv operation overflow. */ error MathOverflowedMulDiv(); enum Rounding { Floor, // Toward negative infinity Ceil, // Toward positive infinity Trunc, // Toward zero Expand // Away from zero } /** * @dev Returns the addition of two unsigned integers, with an overflow flag. */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds towards infinity instead * of rounding towards zero. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { if (b == 0) { // Guarantee the same behavior as in a regular Solidity division. return a / b; } // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or * denominator == 0. * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by * Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0 = x * y; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. if (denominator <= prod1) { revert MathOverflowedMulDiv(); } /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. // Always >= 1. See https://cs.stackexchange.com/q/138556/92363. uint256 twos = denominator & (0 - denominator); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also // works in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded * towards zero. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10 of a positive value rounded towards zero. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256 of a positive value rounded towards zero. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0); } } /** * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers. */ function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) { return uint8(rounding) % 2 == 1; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.20; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "../utils/introspection/IERC165.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 value) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets a `value` amount of tokens as the allowance of `spender` over the * caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom(address from, address to, uint256 value) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC1155/IERC1155.sol) pragma solidity ^0.8.20; import {IERC165} from "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` amount of tokens of type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the value of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch( address[] calldata accounts, uint256[] calldata ids ) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers a `value` amount of tokens of type `id` from `from` to `to`. * * WARNING: This function can potentially allow a reentrancy attack when transferring tokens * to an untrusted contract, when invoking {onERC1155Received} on the receiver. * Ensure to follow the checks-effects-interactions pattern and consider employing * reentrancy guards when interacting with untrusted contracts. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `value` amount. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom(address from, address to, uint256 id, uint256 value, bytes calldata data) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * * WARNING: This function can potentially allow a reentrancy attack when transferring tokens * to an untrusted contract, when invoking {onERC1155BatchReceived} on the receiver. * Ensure to follow the checks-effects-interactions pattern and consider employing * reentrancy guards when interacting with untrusted contracts. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `values` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
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Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"_addressOilXNft","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"enum OilXNftTokenType","name":"tokenType","type":"uint8"},{"indexed":true,"internalType":"uint256","name":"amountOilX","type":"uint256"}],"name":"MintOilXNFT","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"tokenAddress","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawERC1155","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"tokenAddress","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawERC20","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"tokenAddress","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"WithdrawERC721","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawETH","type":"event"},{"inputs":[],"name":"allowBatchMint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"checkonly","type":"bool"},{"internalType":"address","name":"to","type":"address"},{"components":[{"internalType":"enum OilXNftTokenType","name":"purchaseNFTtype","type":"uint8"},{"internalType":"uint32","name":"quantity","type":"uint32"},{"internalType":"uint32","name":"amountOilX","type":"uint32"}],"internalType":"struct NFTBatchMinter.Basket[]","name":"basket","type":"tuple[]"}],"name":"batchmint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getNFTAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_allowBatchMint","type":"bool"}],"name":"setOnOff","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"withdrawERC1155","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"address","name":"_to","type":"address"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"withdrawERC721","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"_to","type":"address"}],"name":"withdrawETH","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Deployed Bytecode
0x608060405234801561001057600080fd5b50600436106100a95760003560e01c80639456fbcc116100715780639456fbcc1461011b578063b37b52611461012e578063b961847814610152578063d440c6a414610163578063e532d44814610176578063f2fde38b1461018957600080fd5b80634025feb2146100ae578063690d8320146100c3578063715018a6146100d657806378cbadde146100de5780638da5cb5b146100f1575b600080fd5b6100c16100bc3660046108e3565b61019c565b005b6100c16100d1366004610924565b61025e565b6100c16102e1565b6100c16100ec3660046109df565b6102f5565b6000546001600160a01b03165b6040516001600160a01b0390911681526020015b60405180910390f35b6100c1610129366004610afa565b610559565b60025461014290600160a01b900460ff1681565b6040519015158152602001610112565b6002546001600160a01b03166100fe565b6100c1610171366004610b33565b610697565b6100c16101843660046108e3565b6106bd565b6100c1610197366004610924565b610813565b6101a4610851565b816001600160a01b0316836001600160a01b03167f43734303d11078efad5d02b38924b4e91a189fb2cbbcd429fc52d9f8cedbcdc7836040516101e991815260200190565b60405180910390a3604051632142170760e11b81523060048201526001600160a01b038381166024830152604482018390528416906342842e0e90606401600060405180830381600087803b15801561024157600080fd5b505af1158015610255573d6000803e3d6000fd5b50505050505050565b610266610851565b60405147808252906001600160a01b038316907f566e45b1c8057e725bf62796a7f1d37ae294393cab069725a09daddd1af98b799060200160405180910390a26040516001600160a01b0383169082156108fc029083906000818181858888f193505050501580156102dc573d6000803e3d6000fd5b505050565b6102e9610851565b6102f3600061087e565b565b6102fd610851565b600254600160a01b900460ff1661035b5760405162461bcd60e51b815260206004820152601760248201527f4572726f723a2062617463686d696e74206973206f666600000000000000000060448201526064015b60405180910390fd5b6001600160a01b0382166103aa5760405162461bcd60e51b81526020600482015260166024820152754572726f723a2061646472657373206973207a65726f60501b6044820152606401610352565b60005b81518160ff1610156105535760005b828260ff16815181106103d1576103d1610b50565b60200260200101516020015163ffffffff168160ff16101561054057841561048257828260ff168151811061040857610408610b50565b60200260200101516040015163ffffffff166000856001600160a01b03167fda388ab1289777eeb825d1bae8ec3464c68231517209187e7ab62fbbd12fe7c7868660ff168151811061045c5761045c610b50565b6020026020010151600001516040516104759190610b88565b60405180910390a461052e565b60015483516001600160a01b039091169063776fc651908690869060ff87169081106104b0576104b0610b50565b602002602001015160000151868660ff16815181106104d1576104d1610b50565b6020026020010151604001516040518463ffffffff1660e01b81526004016104fb93929190610b9c565b600060405180830381600087803b15801561051557600080fd5b505af1158015610529573d6000803e3d6000fd5b505050505b8061053881610bcd565b9150506103bc565b508061054b81610bcd565b9150506103ad565b50505050565b610561610851565b6040516370a0823160e01b815230600482015282906000906001600160a01b038316906370a0823190602401602060405180830381865afa1580156105aa573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906105ce9190610bfa565b9050826001600160a01b0316846001600160a01b03167f33c35f9541201e342d5e7467016e65a0a06182eb12a5f17103f71cec95b6cb298360405161061591815260200190565b60405180910390a360405163a9059cbb60e01b81526001600160a01b0384811660048301526024820183905283169063a9059cbb906044016020604051808303816000875af115801561066c573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906106909190610c13565b5050505050565b61069f610851565b60028054911515600160a01b0260ff60a01b19909216919091179055565b6106c5610851565b604051627eeac760e11b81523060048201526024810182905283906000906001600160a01b0383169062fdd58e90604401602060405180830381865afa158015610713573d6000803e3d6000fd5b505050506040513d601f19601f820116820180604052508101906107379190610bfa565b9050836001600160a01b0316856001600160a01b03167fd19a6af682b2b021929d6816639021ffe41d313e2c6878d5dc4924b523be56b28584604051610787929190918252602082015260400190565b60405180910390a3604051637921219560e11b81523060048201526001600160a01b038581166024830152604482018590526064820183905260a06084830152600060a483015283169063f242432a9060c401600060405180830381600087803b1580156107f457600080fd5b505af1158015610808573d6000803e3d6000fd5b505050505050505050565b61081b610851565b6001600160a01b03811661084557604051631e4fbdf760e01b815260006004820152602401610352565b61084e8161087e565b50565b6000546001600160a01b031633146102f35760405163118cdaa760e01b8152336004820152602401610352565b600080546001600160a01b038381166001600160a01b0319831681178455604051919092169283917f8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e09190a35050565b6001600160a01b038116811461084e57600080fd5b6000806000606084860312156108f857600080fd5b8335610903816108ce565b92506020840135610913816108ce565b929592945050506040919091013590565b60006020828403121561093657600080fd5b8135610941816108ce565b9392505050565b801515811461084e57600080fd5b634e487b7160e01b600052604160045260246000fd5b6040516060810167ffffffffffffffff8111828210171561098f5761098f610956565b60405290565b604051601f8201601f1916810167ffffffffffffffff811182821017156109be576109be610956565b60405291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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000477f9a351db33a913bf0ba22c4e9a7051bed5e15
-----Decoded View---------------
Arg [0] : _addressOilXNft (address): 0x477f9a351db33a913bF0ba22c4e9a7051Bed5e15
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000477f9a351db33a913bf0ba22c4e9a7051bed5e15
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Multichain Portfolio | 34 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.