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0 ETH
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$0.00More Info
Private Name Tags
ContractCreator
TokenTracker
Latest 10 from a total of 10 transactions
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Set Base URI | 17979748 | 416 days ago | IN | 0 ETH | 0.0016615 | ||||
Initialize Royal... | 17979748 | 416 days ago | IN | 0 ETH | 0.00142786 | ||||
Initialize Royal... | 17979748 | 416 days ago | IN | 0 ETH | 0.00142786 | ||||
Initialize Royal... | 17979748 | 416 days ago | IN | 0 ETH | 0.00142786 | ||||
Set Royalty Bips | 17979748 | 416 days ago | IN | 0 ETH | 0.00183811 | ||||
Set Royalty Bips | 17979747 | 416 days ago | IN | 0 ETH | 0.00177003 | ||||
Set Royalty Bips | 17979747 | 416 days ago | IN | 0 ETH | 0.00177003 | ||||
Mint | 17979745 | 416 days ago | IN | 0 ETH | 0.01224244 | ||||
Set Signer | 17955872 | 419 days ago | IN | 0 ETH | 0.00181864 | ||||
Transfer Ownersh... | 17955872 | 419 days ago | IN | 0 ETH | 0.00132753 |
Latest 1 internal transaction
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Parent Transaction Hash | Block | From | To | |||
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17955870 | 419 days ago | Contract Creation | 0 ETH |
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Minimal Proxy Contract for 0xee2c03ced8b6755e8d76ab144677f5f350203cab
Contract Name:
NiftyERC721Token
Compiler Version
v0.8.9+commit.e5eed63a
Optimization Enabled:
Yes with 1500 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; // ,|||||< ~|||||' `_+7ykKD%RDqmI*~` // 8@@@@@@8' `Q@@@@@` `^oB@@@@@@@@@@@@@@@@@R|` // !@@@@@@@@Q; L@@@@@J '}Q@@@@@@QqonzJfk8@@@@@@@Q, // Q@@@@@@@@@@j `Q@@@@Q` `m@@@@@@h^` `?Q@@@@@* // =@@@@@@@@@@@@D. 7@@@@@i ~Q@@@@@w' ^@@@@@* // Q@@@@@m@@@@@@@Q! `@@@@@Q ;@@@@@@; .txxxx: // |@@@@@u *@@@@@@@@z u@@@@@* `Q@@@@@^ // `Q@@@@Q` 'W@@@@@@@R.'@@@@@B 7@@@@@% :DDDDDDDDDDDDDD5 // c@@@@@7 `Z@@@@@@@QK@@@@@+ 6@@@@@K aQQQQQQQ@@@@@@@* // `@@@@@Q` ^Q@@@@@@@@@@@W j@@@@@@; ,6@@@@@@# // t@@@@@L ,8@@@@@@@@@@! 'Q@@@@@@u, .=A@@@@@@@@^ // .@@@@@Q }@@@@@@@@D 'd@@@@@@@@gUwwU%Q@@@@@@@@@@g // j@@@@@< +@@@@@@@; ;wQ@@@@@@@@@@@@@@@Wf;8@@@; // ~;;;;; .;;;;;~ '!Lx5mEEmyt|!' ;;;~ // // Powered By: @niftygateway // Author: @niftynathang // Collaborators: @conviction_1 // @stormihoebe // @smatthewenglish // @dccockfoster // @blainemalone import "./ERC721Omnibus.sol"; import "../interfaces/IERC2309.sol"; import "../interfaces/IERC721MetadataGenerator.sol"; import "../interfaces/IERC721DefaultOwnerCloneable.sol"; import "../structs/NiftyType.sol"; import "../utils/Ownable.sol"; import "../utils/Signable.sol"; import "../utils/Withdrawable.sol"; import "../utils/Royalties.sol"; contract NiftyERC721Token is ERC721Omnibus, Royalties, Signable, Withdrawable, Ownable, IERC2309 { using Address for address; event NiftyTypeCreated(address indexed contractAddress, uint256 niftyType, uint256 idFirst, uint256 idLast); uint256 constant internal MAX_INT = 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff; // A pointer to a contract that can generate token URI/metadata IERC721MetadataGenerator internal metadataGenerator; // Used to determine next nifty type/token ids to create on a mint call NiftyType internal lastNiftyType; // Sorted array of NiftyType definitions - ordered to allow binary searching NiftyType[] internal niftyTypes; // Mapping from Nifty type to IPFS hash of canonical artifact file. mapping(uint256 => string) private niftyTypeIPFSHashes; constructor() { } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721Omnibus, Royalties, NiftyPermissions) returns (bool) { return interfaceId == type(IERC2309).interfaceId || super.supportsInterface(interfaceId); } function setMetadataGenerator(address metadataGenerator_) external { _requireOnlyValidSender(); if(metadataGenerator_ == address(0)) { metadataGenerator = IERC721MetadataGenerator(metadataGenerator_); } else { require(IERC165(metadataGenerator_).supportsInterface(type(IERC721MetadataGenerator).interfaceId), "Invalid Metadata Generator"); metadataGenerator = IERC721MetadataGenerator(metadataGenerator_); } } function finalizeContract() external { _requireOnlyValidSender(); require(!collectionStatus.isContractFinalized, ERROR_CONTRACT_IS_FINALIZED); collectionStatus.isContractFinalized = true; } function tokenURI(uint256 tokenId) public virtual view override returns (string memory) { if(address(metadataGenerator) == address(0)) { return super.tokenURI(tokenId); } else { require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); return metadataGenerator.tokenMetadata(tokenId, _getNiftyType(tokenId), bytes("")); } } function contractURI() public virtual view override returns (string memory) { if(address(metadataGenerator) == address(0)) { return super.contractURI(); } else { return metadataGenerator.contractMetadata(); } } function tokenIPFSHash(uint256 tokenId) external view returns (string memory) { require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); return niftyTypeIPFSHashes[_getNiftyType(tokenId)]; } function setIPFSHash(uint256 niftyType, string memory ipfsHash) external { _requireOnlyValidSender(); require(bytes(niftyTypeIPFSHashes[niftyType]).length == 0, "ERC721Metadata: IPFS hash already set"); niftyTypeIPFSHashes[niftyType] = ipfsHash; } function mint(uint256[] calldata amounts, string[] calldata ipfsHashes) external { _requireOnlyValidSender(); require(amounts.length > 0 && ipfsHashes.length > 0, ERROR_INPUT_ARRAY_EMPTY); require(amounts.length == ipfsHashes.length, ERROR_INPUT_ARRAY_SIZE_MISMATCH); address to = collectionStatus.defaultOwner; require(to != address(0), ERROR_TRANSFER_TO_ZERO_ADDRESS); require(!collectionStatus.isContractFinalized, ERROR_CONTRACT_IS_FINALIZED); uint88 initialIdLast = lastNiftyType.idLast; uint72 nextNiftyType = lastNiftyType.niftyType; uint88 nextIdCounter = initialIdLast + 1; uint88 firstNewTokenId = nextIdCounter; uint88 lastIdCounter = 0; for(uint256 i = 0; i < amounts.length; i++) { require(amounts[i] > 0, ERROR_NO_TOKENS_MINTED); uint88 amount = uint88(amounts[i]); lastIdCounter = nextIdCounter + amount - 1; nextNiftyType++; if(bytes(ipfsHashes[i]).length > 0) { niftyTypeIPFSHashes[nextNiftyType] = ipfsHashes[i]; } niftyTypes.push(NiftyType({ isMinted: true, niftyType: nextNiftyType, idFirst: nextIdCounter, idLast: lastIdCounter })); emit NiftyTypeCreated(address(this), nextNiftyType, nextIdCounter, lastIdCounter); nextIdCounter += amount; } uint256 newlyMinted = lastIdCounter - initialIdLast; balances[to] += newlyMinted; lastNiftyType.niftyType = nextNiftyType; lastNiftyType.idLast = lastIdCounter; collectionStatus.amountCreated += uint88(newlyMinted); emit ConsecutiveTransfer(firstNewTokenId, lastIdCounter, address(0), to); } function setBaseURI(string calldata uri) external { _requireOnlyValidSender(); _setBaseURI(uri); } function exists(uint256 tokenId) public view returns (bool) { return _exists(tokenId); } function burn(uint256 tokenId) public { _burn(tokenId); } function burnBatch(uint256[] calldata tokenIds) public { require(tokenIds.length > 0, ERROR_INPUT_ARRAY_EMPTY); for(uint256 i = 0; i < tokenIds.length; i++) { _burn(tokenIds[i]); } } function getNiftyTypes() public view returns (NiftyType[] memory) { return niftyTypes; } function getNiftyTypeDetails(uint256 niftyType) public view returns (NiftyType memory) { uint256 niftyTypeIndex = MAX_INT; unchecked { niftyTypeIndex = niftyType - 1; } if(niftyTypeIndex >= niftyTypes.length) { revert('Nifty Type Does Not Exist'); } return niftyTypes[niftyTypeIndex]; } function _isValidTokenId(uint256 tokenId) internal virtual view override returns (bool) { return tokenId > 0 && tokenId <= collectionStatus.amountCreated; } // Performs a binary search of the nifty types array to find which nifty type a token id is associated with // This is more efficient than iterating the entire nifty type array until the proper entry is found. // This is O(log n) instead of O(n) function _getNiftyType(uint256 tokenId) internal virtual override view returns (uint256) { uint256 min = 0; uint256 max = niftyTypes.length - 1; uint256 guess = (max - min) / 2; while(guess < niftyTypes.length) { NiftyType storage guessResult = niftyTypes[guess]; if(tokenId >= guessResult.idFirst && tokenId <= guessResult.idLast) { return guessResult.niftyType; } else if(tokenId > guessResult.idLast) { min = guess + 1; guess = min + (max - min) / 2; } else if(tokenId < guessResult.idFirst) { max = guess - 1; guess = min + (max - min) / 2; } } return 0; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./ERC721.sol"; import "../interfaces/IERC721DefaultOwnerCloneable.sol"; abstract contract ERC721Omnibus is ERC721, IERC721DefaultOwnerCloneable { struct TokenOwner { bool transferred; address ownerAddress; } struct CollectionStatus { bool isContractFinalized; // 1 byte uint88 amountCreated; // 11 bytes address defaultOwner; // 20 bytes } // Only allow Nifty Entity to be initialized once bool internal initializedDefaultOwner; CollectionStatus internal collectionStatus; // Mapping from token ID to owner address mapping(uint256 => TokenOwner) internal ownersOptimized; function initializeDefaultOwner(address defaultOwner_) public { require(!initializedDefaultOwner, ERROR_REINITIALIZATION_NOT_PERMITTED); collectionStatus.defaultOwner = defaultOwner_; initializedDefaultOwner = true; } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, IERC165) returns (bool) { return interfaceId == type(IERC721DefaultOwnerCloneable).interfaceId || super.supportsInterface(interfaceId); } function getCollectionStatus() public view virtual returns (CollectionStatus memory) { return collectionStatus; } function ownerOf(uint256 tokenId) public view virtual override returns (address owner) { require(_isValidTokenId(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); owner = ownersOptimized[tokenId].transferred ? ownersOptimized[tokenId].ownerAddress : collectionStatus.defaultOwner; require(owner != address(0), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); } function _exists(uint256 tokenId) internal view virtual override returns (bool) { if(_isValidTokenId(tokenId)) { return ownersOptimized[tokenId].ownerAddress != address(0) || !ownersOptimized[tokenId].transferred; } return false; } function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual override returns (address owner, bool isApprovedOrOwner) { owner = ownerOf(tokenId); isApprovedOrOwner = (spender == owner || tokenApprovals[tokenId] == spender || isApprovedForAll(owner, spender)); } function _clearOwnership(uint256 tokenId) internal virtual override { ownersOptimized[tokenId].transferred = true; ownersOptimized[tokenId].ownerAddress = address(0); } function _setOwnership(address to, uint256 tokenId) internal virtual override { ownersOptimized[tokenId].transferred = true; ownersOptimized[tokenId].ownerAddress = to; } function _isValidTokenId(uint256 /*tokenId*/) internal virtual view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @dev Interface of the ERC2309 standard as defined in the EIP. */ interface IERC2309 { /** * @dev Emitted when consecutive token ids in range ('fromTokenId') to ('toTokenId') are transferred from one account (`fromAddress`) to * another (`toAddress`). * * Note that `value` may be zero. */ event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed fromAddress, address indexed toAddress); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC165.sol"; interface IERC721MetadataGenerator is IERC165 { function contractMetadata() external view returns (string memory); function tokenMetadata(uint256 tokenId, uint256 niftyType, bytes calldata data) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC165.sol"; interface IERC721DefaultOwnerCloneable is IERC165 { function initializeDefaultOwner(address defaultOwner_) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; struct NiftyType { bool isMinted; // 1 bytes uint72 niftyType; // 9 bytes uint88 idFirst; // 11 bytes uint88 idLast; // 11 bytes }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./NiftyPermissions.sol"; abstract contract Ownable is NiftyPermissions { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); function owner() public view virtual returns (address) { return _owner; } function transferOwnership(address newOwner) public virtual { _requireOnlyValidSender(); address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./NiftyPermissions.sol"; import "../libraries/ECDSA.sol"; import "../structs/SignatureStatus.sol"; abstract contract Signable is NiftyPermissions { event ContractSigned(address signer, bytes32 data, bytes signature); SignatureStatus public signatureStatus; bytes public signature; string internal constant ERROR_CONTRACT_ALREADY_SIGNED = "Contract already signed"; string internal constant ERROR_CONTRACT_NOT_SALTED = "Contract not salted"; string internal constant ERROR_INCORRECT_SECRET_SALT = "Incorrect secret salt"; string internal constant ERROR_SALTED_HASH_SET_TO_ZERO = "Salted hash set to zero"; string internal constant ERROR_SIGNER_SET_TO_ZERO = "Signer set to zero address"; function setSigner(address signer_, bytes32 saltedHash_) external { _requireOnlyValidSender(); require(signer_ != address(0), ERROR_SIGNER_SET_TO_ZERO); require(saltedHash_ != bytes32(0), ERROR_SALTED_HASH_SET_TO_ZERO); require(!signatureStatus.isVerified, ERROR_CONTRACT_ALREADY_SIGNED); signatureStatus.signer = signer_; signatureStatus.saltedHash = saltedHash_; signatureStatus.isSalted = true; } function sign(uint256 salt, bytes calldata signature_) external { require(!signatureStatus.isVerified, ERROR_CONTRACT_ALREADY_SIGNED); require(signatureStatus.isSalted, ERROR_CONTRACT_NOT_SALTED); address expectedSigner = signatureStatus.signer; bytes32 expectedSaltedHash = signatureStatus.saltedHash; require(_msgSender() == expectedSigner, ERROR_INVALID_MSG_SENDER); require(keccak256(abi.encodePacked(salt)) == expectedSaltedHash, ERROR_INCORRECT_SECRET_SALT); require(ECDSA.recover(ECDSA.toEthSignedMessageHash(expectedSaltedHash), signature_) == expectedSigner, ERROR_UNEXPECTED_DATA_SIGNER); signature = signature_; signatureStatus.isVerified = true; emit ContractSigned(expectedSigner, expectedSaltedHash, signature_); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./RejectEther.sol"; import "./NiftyPermissions.sol"; import "../interfaces/IERC20.sol"; import "../interfaces/IERC721.sol"; abstract contract Withdrawable is RejectEther, NiftyPermissions { /** * @dev Slither identifies an issue with sending ETH to an arbitrary destianation. * https://github.com/crytic/slither/wiki/Detector-Documentation#functions-that-send-ether-to-arbitrary-destinations * Recommended mitigation is to "Ensure that an arbitrary user cannot withdraw unauthorized funds." * This mitigation has been performed, as only the contract admin can call 'withdrawETH' and they should * verify the recipient should receive the ETH first. */ function withdrawETH(address payable recipient, uint256 amount) external { _requireOnlyValidSender(); require(amount > 0, ERROR_ZERO_ETH_TRANSFER); require(recipient != address(0), "Transfer to zero address"); uint256 currentBalance = address(this).balance; require(amount <= currentBalance, ERROR_INSUFFICIENT_BALANCE); //slither-disable-next-line arbitrary-send (bool success,) = recipient.call{value: amount}(""); require(success, ERROR_WITHDRAW_UNSUCCESSFUL); } function withdrawERC20(address tokenContract, address recipient, uint256 amount) external { _requireOnlyValidSender(); bool success = IERC20(tokenContract).transfer(recipient, amount); require(success, ERROR_WITHDRAW_UNSUCCESSFUL); } function withdrawERC721(address tokenContract, address recipient, uint256 tokenId) external { _requireOnlyValidSender(); IERC721(tokenContract).safeTransferFrom(address(this), recipient, tokenId, ""); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./NiftyPermissions.sol"; import "../libraries/Clones.sol"; import "../interfaces/IERC20.sol"; import "../interfaces/IERC721.sol"; import "../interfaces/IERC2981.sol"; import "../interfaces/ICloneablePaymentSplitter.sol"; import "../structs/RoyaltyRecipient.sol"; abstract contract Royalties is NiftyPermissions, IERC2981 { event RoyaltyReceiverUpdated(uint256 indexed niftyType, address previousReceiver, address newReceiver); uint256 constant public BIPS_PERCENTAGE_TOTAL = 10000; // Royalty information mapped by nifty type mapping (uint256 => RoyaltyRecipient) internal royaltyRecipients; function supportsInterface(bytes4 interfaceId) public view virtual override(NiftyPermissions, IERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } function getRoyaltySettings(uint256 niftyType) public view returns (RoyaltyRecipient memory) { return royaltyRecipients[niftyType]; } function setRoyaltyBips(uint256 niftyType, uint256 bips) external { _requireOnlyValidSender(); require(bips <= BIPS_PERCENTAGE_TOTAL, ERROR_BIPS_OVER_100_PERCENT); royaltyRecipients[niftyType].bips = uint16(bips); } function royaltyInfo(uint256 tokenId, uint256 salePrice) public virtual override view returns (address, uint256) { uint256 niftyType = _getNiftyType(tokenId); return royaltyRecipients[niftyType].recipient == address(0) ? (address(0), 0) : (royaltyRecipients[niftyType].recipient, (salePrice * royaltyRecipients[niftyType].bips) / BIPS_PERCENTAGE_TOTAL); } function initializeRoyalties(uint256 niftyType, address splitterImplementation, address[] calldata payees, uint256[] calldata shares) external returns (address) { _requireOnlyValidSender(); address previousReceiver = royaltyRecipients[niftyType].recipient; royaltyRecipients[niftyType].isPaymentSplitter = payees.length > 1; royaltyRecipients[niftyType].recipient = payees.length == 1 ? payees[0] : _clonePaymentSplitter(splitterImplementation, payees, shares); emit RoyaltyReceiverUpdated(niftyType, previousReceiver, royaltyRecipients[niftyType].recipient); return royaltyRecipients[niftyType].recipient; } function getNiftyType(uint256 tokenId) public view returns (uint256) { return _getNiftyType(tokenId); } function getPaymentSplitterByNiftyType(uint256 niftyType) public virtual view returns (address) { return _getPaymentSplitter(niftyType); } function getPaymentSplitterByTokenId(uint256 tokenId) public virtual view returns (address) { return _getPaymentSplitter(_getNiftyType(tokenId)); } function _getNiftyType(uint256 tokenId) internal virtual view returns (uint256) { return 0; } function _clonePaymentSplitter(address splitterImplementation, address[] calldata payees, uint256[] calldata shares_) internal returns (address) { require(IERC165(splitterImplementation).supportsInterface(type(ICloneablePaymentSplitter).interfaceId), ERROR_UNCLONEABLE_REFERENCE_CONTRACT); address clone = payable (Clones.clone(splitterImplementation)); ICloneablePaymentSplitter(clone).initialize(payees, shares_); return clone; } function _getPaymentSplitter(uint256 niftyType) internal virtual view returns (address) { return royaltyRecipients[niftyType].isPaymentSplitter ? royaltyRecipients[niftyType].recipient : address(0); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./ERC721Errors.sol"; import "../interfaces/IERC721.sol"; import "../interfaces/IERC721Receiver.sol"; import "../interfaces/IERC721Metadata.sol"; import "../interfaces/IERC721Cloneable.sol"; import "../libraries/Address.sol"; import "../libraries/Context.sol"; import "../libraries/Strings.sol"; import "../utils/ERC165.sol"; import "../utils/GenericErrors.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, ERC721Errors, GenericErrors, IERC721Metadata, IERC721Cloneable { using Address for address; using Strings for uint256; // Only allow ERC721 to be initialized once bool internal initializedERC721; // Token name string internal tokenName; // Token symbol string internal tokenSymbol; // Base URI For Offchain Metadata string internal baseMetadataURI; // Mapping from token ID to owner address mapping(uint256 => address) internal owners; // Mapping owner address to token count mapping(address => uint256) internal balances; // Mapping from token ID to approved address mapping(uint256 => address) internal tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) internal operatorApprovals; function initializeERC721(string memory name_, string memory symbol_, string memory baseURI_) public override { require(!initializedERC721, ERROR_REINITIALIZATION_NOT_PERMITTED); tokenName = name_; tokenSymbol = symbol_; _setBaseURI(baseURI_); initializedERC721 = true; } /** * @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 || interfaceId == type(IERC721Cloneable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), ERROR_QUERY_FOR_ZERO_ADDRESS); return balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = owners[tokenId]; require(owner != address(0), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return tokenName; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return tokenSymbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); string memory uriBase = baseURI(); return bytes(uriBase).length > 0 ? string(abi.encodePacked(uriBase, tokenId.toString())) : ""; } function baseURI() public view virtual returns (string memory) { return baseMetadataURI; } /** * @dev Storefront-level metadata for contract */ function contractURI() public view virtual returns (string memory) { string memory uriBase = baseURI(); return bytes(uriBase).length > 0 ? string(abi.encodePacked(uriBase, "contract-metadata")) : ""; } /** * @dev Internal function to set the base URI */ function _setBaseURI(string memory uri) internal { baseMetadataURI = uri; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ownerOf(tokenId); require(to != owner, ERROR_APPROVAL_TO_CURRENT_OWNER); require(_msgSender() == owner || isApprovedForAll(owner, _msgSender()), ERROR_NOT_OWNER_NOR_APPROVED); _approve(owner, to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); return tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(operator != _msgSender(), ERROR_APPROVE_TO_CALLER); operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom(address from, address to, uint256 tokenId) public virtual override { (address owner, bool isApprovedOrOwner) = _isApprovedOrOwner(_msgSender(), tokenId); require(isApprovedOrOwner, ERROR_NOT_OWNER_NOR_APPROVED); _transfer(owner, from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override { transferFrom(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), ERROR_NOT_AN_ERC721_RECEIVER); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (address owner, bool isApprovedOrOwner) { owner = owners[tokenId]; require(owner != address(0), ERROR_QUERY_FOR_NONEXISTENT_TOKEN); isApprovedOrOwner = (spender == owner || tokenApprovals[tokenId] == spender || isApprovedForAll(owner, spender)); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ownerOf(tokenId); bool isApprovedOrOwner = (_msgSender() == owner || tokenApprovals[tokenId] == _msgSender() || isApprovedForAll(owner, _msgSender())); require(isApprovedOrOwner, ERROR_NOT_OWNER_NOR_APPROVED); // Clear approvals _clearApproval(owner, tokenId); balances[owner] -= 1; _clearOwnership(tokenId); emit Transfer(owner, address(0), 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 owner, address from, address to, uint256 tokenId) internal virtual { require(owner == from, ERROR_TRANSFER_FROM_INCORRECT_OWNER); require(to != address(0), ERROR_TRANSFER_TO_ZERO_ADDRESS); // Clear approvals from the previous owner _clearApproval(owner, tokenId); balances[from] -= 1; balances[to] += 1; _setOwnership(to, tokenId); emit Transfer(from, to, tokenId); } /** * @dev Equivalent to approving address(0), but more gas efficient * * Emits a {Approval} event. */ function _clearApproval(address owner, uint256 tokenId) internal virtual { delete tokenApprovals[tokenId]; emit Approval(owner, address(0), tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address owner, address to, uint256 tokenId) internal virtual { tokenApprovals[tokenId] = to; emit Approval(owner, to, tokenId); } function _clearOwnership(uint256 tokenId) internal virtual { delete owners[tokenId]; } function _setOwnership(address to, uint256 tokenId) internal virtual { owners[tokenId] = to; } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value * * @dev Slither identifies an issue with unused return value. * Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#unused-return * This should be a non-issue. It is the standard OpenZeppelin implementation which has been heavily used and audited. */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) internal returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert(ERROR_NOT_AN_ERC721_RECEIVER); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; abstract contract ERC721Errors { string internal constant ERROR_QUERY_FOR_ZERO_ADDRESS = "Query for zero address"; string internal constant ERROR_QUERY_FOR_NONEXISTENT_TOKEN = "Token does not exist"; string internal constant ERROR_APPROVAL_TO_CURRENT_OWNER = "Current owner approval"; string internal constant ERROR_APPROVE_TO_CALLER = "Approve to caller"; string internal constant ERROR_NOT_OWNER_NOR_APPROVED = "Not owner nor approved"; string internal constant ERROR_NOT_AN_ERC721_RECEIVER = "Not an ERC721Receiver"; string internal constant ERROR_TRANSFER_FROM_INCORRECT_OWNER = "Transfer from incorrect owner"; string internal constant ERROR_TRANSFER_TO_ZERO_ADDRESS = "Transfer to zero address"; string internal constant ERROR_ALREADY_MINTED = "Token already minted"; string internal constant ERROR_NO_TOKENS_MINTED = "No tokens minted"; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./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`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @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 `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC721.sol"; interface IERC721Cloneable is IERC721 { function initializeERC721(string calldata name_, string calldata symbol_, string calldata baseURI_) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @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 pragma solidity 0.8.9; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "../interfaces/IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; abstract contract GenericErrors { string internal constant ERROR_INPUT_ARRAY_EMPTY = "Input array empty"; string internal constant ERROR_INPUT_ARRAY_SIZE_MISMATCH = "Input array size mismatch"; string internal constant ERROR_INVALID_MSG_SENDER = "Invalid msg.sender"; string internal constant ERROR_UNEXPECTED_DATA_SIGNER = "Unexpected data signer"; string internal constant ERROR_INSUFFICIENT_BALANCE = "Insufficient balance"; string internal constant ERROR_WITHDRAW_UNSUCCESSFUL = "Withdraw unsuccessful"; string internal constant ERROR_CONTRACT_IS_FINALIZED = "Contract is finalized"; string internal constant ERROR_CANNOT_CHANGE_DEFAULT_OWNER = "Cannot change default owner"; string internal constant ERROR_UNCLONEABLE_REFERENCE_CONTRACT = "Uncloneable reference contract"; string internal constant ERROR_BIPS_OVER_100_PERCENT = "Bips over 100%"; string internal constant ERROR_NO_ROYALTY_RECEIVER = "No royalty receiver"; string internal constant ERROR_REINITIALIZATION_NOT_PERMITTED = "Re-initialization not permitted"; string internal constant ERROR_ZERO_ETH_TRANSFER = "Zero ETH Transfer"; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./ERC165.sol"; import "./GenericErrors.sol"; import "../interfaces/INiftyEntityCloneable.sol"; import "../interfaces/INiftyRegistry.sol"; import "../libraries/Context.sol"; abstract contract NiftyPermissions is Context, ERC165, GenericErrors, INiftyEntityCloneable { event AdminTransferred(address indexed previousAdmin, address indexed newAdmin); // Only allow Nifty Entity to be initialized once bool internal initializedNiftyEntity; // If address(0), use enable Nifty Gateway permissions - otherwise, specifies the address with permissions address public admin; // To prevent a mistake, transferring admin rights will be a two step process // First, the current admin nominates a new admin // Second, the nominee accepts admin address public nominatedAdmin; // Nifty Registry Contract INiftyRegistry internal permissionsRegistry; function initializeNiftyEntity(address niftyRegistryContract_) public { require(!initializedNiftyEntity, ERROR_REINITIALIZATION_NOT_PERMITTED); permissionsRegistry = INiftyRegistry(niftyRegistryContract_); initializedNiftyEntity = true; } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(INiftyEntityCloneable).interfaceId || super.supportsInterface(interfaceId); } function renounceAdmin() external { _requireOnlyValidSender(); _transferAdmin(address(0)); } function nominateAdmin(address nominee) external { _requireOnlyValidSender(); nominatedAdmin = nominee; } function acceptAdmin() external { address nominee = nominatedAdmin; require(_msgSender() == nominee, ERROR_INVALID_MSG_SENDER); _transferAdmin(nominee); } function _requireOnlyValidSender() internal view { address currentAdmin = admin; if(currentAdmin == address(0)) { require(permissionsRegistry.isValidNiftySender(_msgSender()), ERROR_INVALID_MSG_SENDER); } else { require(_msgSender() == currentAdmin, ERROR_INVALID_MSG_SENDER); } } function _transferAdmin(address newAdmin) internal { address oldAdmin = admin; admin = newAdmin; delete nominatedAdmin; emit AdminTransferred(oldAdmin, newAdmin); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC165.sol"; interface INiftyEntityCloneable is IERC165 { function initializeNiftyEntity(address niftyRegistryContract_) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; interface INiftyRegistry { function isValidNiftySender(address sendingKey) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol) pragma solidity 0.8.9; import "./Strings.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } else if (error == RecoverError.InvalidSignatureV) { revert("ECDSA: invalid signature 'v' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { // Check the signature length // - case 65: r,s,v signature (standard) // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._ if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else if (signature.length == 64) { bytes32 r; bytes32 vs; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. assembly { r := mload(add(signature, 0x20)) vs := mload(add(signature, 0x40)) } return tryRecover(hash, r, vs); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address, RecoverError) { bytes32 s; uint8 v; assembly { s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) v := add(shr(255, vs), 27) } return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } if (v != 27 && v != 28) { return (address(0), RecoverError.InvalidSignatureV); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; struct SignatureStatus { bool isSalted; bool isVerified; address signer; bytes32 saltedHash; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @title A base contract that may be inherited in order to protect a contract from having its fallback function * invoked and to block the receipt of ETH by a contract. * @author Nathan Gang * @notice This contract bestows on inheritors the ability to block ETH transfers into the contract * @dev ETH may still be forced into the contract - it is impossible to block certain attacks, but this protects from accidental ETH deposits */ // For more info, see: "https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56" abstract contract RejectEther { /** * @dev For most contracts, it is safest to explicitly restrict the use of the fallback function * This would generally be invoked if sending ETH to this contract with a 'data' value provided */ fallback() external payable { revert("Fallback function not permitted"); } /** * @dev This is the standard path where ETH would land if sending ETH to this contract without a 'data' value * In our case, we don't want our contract to receive ETH, so we restrict it here */ receive() external payable { revert("Receiving ETH not permitted"); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; /** * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for * deploying minimal proxy contracts, also known as "clones". * * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies * > a minimal bytecode implementation that delegates all calls to a known, fixed address. * * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2` * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the * deterministic method. * */ library Clones { /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create opcode, which should never revert. */ function clone(address implementation) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create(0, ptr, 0x37) } require(instance != address(0), "ERC1167: create failed"); } /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create2 opcode and a `salt` to deterministically deploy * the clone. Using the same `implementation` and `salt` multiple time will revert, since * the clones cannot be deployed twice at the same address. */ function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create2(0, ptr, 0x37, salt) } require(instance != address(0), "ERC1167: create2 failed"); } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress( address implementation, bytes32 salt, address deployer ) internal pure returns (address predicted) { assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000) mstore(add(ptr, 0x38), shl(0x60, deployer)) mstore(add(ptr, 0x4c), salt) mstore(add(ptr, 0x6c), keccak256(ptr, 0x37)) predicted := keccak256(add(ptr, 0x37), 0x55) } } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress(address implementation, bytes32 salt) internal view returns (address predicted) { return predictDeterministicAddress(implementation, salt, address(this)); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be payed in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "./IERC165.sol"; import "../libraries/SafeERC20.sol"; interface ICloneablePaymentSplitter is IERC165 { event PayeeAdded(address account, uint256 shares); event PaymentReleased(address to, uint256 amount); event ERC20PaymentReleased(IERC20 indexed token, address to, uint256 amount); event PaymentReceived(address from, uint256 amount); function initialize(address[] calldata payees, uint256[] calldata shares_) external; function totalShares() external view returns (uint256); function totalReleased() external view returns (uint256); function totalReleased(IERC20 token) external view returns (uint256); function shares(address account) external view returns (uint256); function released(address account) external view returns (uint256); function released(IERC20 token, address account) external view returns (uint256); function payee(uint256 index) external view returns (address); function release(address payable account) external; function release(IERC20 token, address account) external; function pendingPayment(address account) external view returns (uint256); function pendingPayment(IERC20 token, address account) external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; struct RoyaltyRecipient { bool isPaymentSplitter; // 1 byte uint16 bips; // 2 bytes address recipient; // 20 bytes }
// SPDX-License-Identifier: MIT pragma solidity 0.8.9; import "../interfaces/IERC20.sol"; import "./Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
{ "optimizer": { "enabled": true, "runs": 1500 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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Multichain Portfolio | 27 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.