ERC-721
Overview
Max Total Supply
0 FreeNFTSignup
Holders
88
Total Transfers
-
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Minimal Proxy Contract for 0x7b2b743e6cd4258a4277828d4caf9630155443ac
Contract Name:
NFT
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 50000 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import "../LazyMintERC721CMetadataInitializable.sol"; import "../../../../AccessControlledMinters.sol"; import "@limitbreak/creator-token-contracts/contracts/programmable-royalties/BasicRoyalties.sol"; contract NFT is AccessControlledMintersInitializable, LazyMintERC721CMetadataInitializable, BasicRoyaltiesInitializable { constructor() {} function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControlEnumerable, LazyMintERC721CInitializable, ERC2981) returns (bool) { return super.supportsInterface(interfaceId); } function setDefaultRoyalty(address receiver, uint96 feeNumerator) public { _requireCallerIsContractOwner(); _setDefaultRoyalty(receiver, feeNumerator); } function setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) public { _requireCallerIsContractOwner(); _setTokenRoyalty(tokenId, receiver, feeNumerator); } function _requireCallerIsMinterOrContractOwner() internal view override { _requireCallerIsAllowedToMint(); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.19; import "src/token/erc721/LazyMintERC721C.sol"; import "@limitbreak/creator-token-contracts/contracts/access/OwnableInitializable.sol"; import "@limitbreak/creator-token-contracts/contracts/token/erc721/MetadataURI.sol"; abstract contract LazyMintERC721CMetadataInitializable is OwnableInitializable, MetadataURIInitializable, LazyMintERC721CInitializable { using Strings for uint256; /// @notice Returns tokenURI if baseURI is set function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { if(!_exists(tokenId)) { revert LazyMintERC721Base__TokenDoesNotExist(); } string memory baseURI = baseTokenURI; return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString(), suffixURI)) : ""; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@limitbreak/creator-token-contracts/contracts/access/OwnablePermissions.sol"; import "@openzeppelin/contracts/access/AccessControlEnumerable.sol"; abstract contract AccessControlledMinters is OwnablePermissions, AccessControlEnumerable { error AccessControlledMinters__CallerDoesNotHaveAdminRole(); error AccessControlledMinters__CannotTransferAdminRoleToSelf(); error AccessControlledMinters__CannotTransferAdminRoleToZeroAddress(); /// @notice Value defining the `Minter Role`. bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); constructor() { _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); } /** * @notice Allows the current contract admin to transfer the `Admin Role` to a new address. * @dev Throws if newAdmin is the zero-address * @dev Throws if the caller is not the current admin. * @dev Throws if the caller is an admin and tries to transfer admin to itself. * * @dev <h4>Postconditions:</h4> * @dev 1. The caller/former admin has had `Admin Role` revoked. * @dev 2. The new admin has been granted the `Admin Role`. */ function transferAdminRole(address newAdmin) external { _requireCallerIsAdmin(); if(newAdmin == address(0)) { revert AccessControlledMinters__CannotTransferAdminRoleToZeroAddress(); } if(newAdmin == _msgSender()) { revert AccessControlledMinters__CannotTransferAdminRoleToSelf(); } _revokeRole(DEFAULT_ADMIN_ROLE, _msgSender()); _grantRole(DEFAULT_ADMIN_ROLE, newAdmin); } /** * @dev Validates that the caller is an admin * @dev Throws when the caller is not an admin */ function _requireCallerIsAdmin() internal view { if(!hasRole(DEFAULT_ADMIN_ROLE, _msgSender())) { revert AccessControlledMinters__CallerDoesNotHaveAdminRole(); } } /** * @dev Validates that the caller is the contract owner or has been granted minter role * @dev Throws when the caller is not the contract owner and has not been granted minter role */ function _requireCallerIsAllowedToMint() internal view { if(!hasRole(MINTER_ROLE, _msgSender())) { _requireCallerIsContractOwner(); } } } abstract contract AccessControlledMintersInitializable is AccessControlledMinters { error AccessControlledMintersInitializable__AdminAlreadyInitialized(); bool private _adminInitialized; /// @dev Initializes access control enumerable default admin. /// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167. function initializeAdmin(address admin) public { _requireCallerIsContractOwner(); if(_adminInitialized) { revert AccessControlledMintersInitializable__AdminAlreadyInitialized(); } _adminInitialized = true; _setupRole(DEFAULT_ADMIN_ROLE, admin); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/common/ERC2981.sol"; /** * @title BasicRoyaltiesBase * @author Limit Break, Inc. * @dev Base functionality of an NFT mix-in contract implementing the most basic form of programmable royalties. */ abstract contract BasicRoyaltiesBase is ERC2981 { event DefaultRoyaltySet(address indexed receiver, uint96 feeNumerator); event TokenRoyaltySet(uint256 indexed tokenId, address indexed receiver, uint96 feeNumerator); function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual override { super._setDefaultRoyalty(receiver, feeNumerator); emit DefaultRoyaltySet(receiver, feeNumerator); } function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual override { super._setTokenRoyalty(tokenId, receiver, feeNumerator); emit TokenRoyaltySet(tokenId, receiver, feeNumerator); } } /** * @title BasicRoyalties * @author Limit Break, Inc. * @notice Constructable BasicRoyalties Contract implementation. */ abstract contract BasicRoyalties is BasicRoyaltiesBase { constructor(address receiver, uint96 feeNumerator) { _setDefaultRoyalty(receiver, feeNumerator); } } /** * @title BasicRoyaltiesInitializable * @author Limit Break, Inc. * @notice Initializable BasicRoyalties Contract implementation to allow for EIP-1167 clones. */ abstract contract BasicRoyaltiesInitializable is BasicRoyaltiesBase {}
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./LazyMintERC721.sol"; import "@limitbreak/creator-token-contracts/contracts/utils/CreatorTokenBase.sol"; abstract contract LazyMintERC721C is LazyMintERC721, CreatorTokenBase { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(ICreatorToken).interfaceId || super.supportsInterface(interfaceId); } /// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateBeforeTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } /// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateAfterTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } } abstract contract LazyMintERC721CInitializable is LazyMintERC721Initializable, CreatorTokenBase { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(ICreatorToken).interfaceId || super.supportsInterface(interfaceId); } /// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateBeforeTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } /// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual override { for (uint256 i = 0; i < batchSize;) { _validateAfterTransfer(from, to, firstTokenId + i); unchecked { ++i; } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./OwnablePermissions.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; abstract contract OwnableInitializable is OwnablePermissions, Ownable { error InitializableOwnable__OwnerAlreadyInitialized(); bool private _ownerInitialized; /** * @dev When EIP-1167 is used to clone a contract that inherits Ownable permissions, * this is required to assign the initial contract owner, as the constructor is * not called during the cloning process. */ function initializeOwner(address owner_) public { if (owner() != address(0) || _ownerInitialized) { revert InitializableOwnable__OwnerAlreadyInitialized(); } _transferOwnership(owner_); } function _requireCallerIsContractOwner() internal view virtual override { _checkOwner(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../../access/OwnablePermissions.sol"; abstract contract MetadataURI is OwnablePermissions { /// @dev Base token uri string public baseTokenURI; /// @dev Token uri suffix/extension string public suffixURI; /// @dev Emitted when base URI is set. event BaseURISet(string baseTokenURI); /// @dev Emitted when suffix URI is set. event SuffixURISet(string suffixURI); /// @notice Sets base URI function setBaseURI(string memory baseTokenURI_) public { _requireCallerIsContractOwner(); baseTokenURI = baseTokenURI_; emit BaseURISet(baseTokenURI_); } /// @notice Sets suffix URI function setSuffixURI(string memory suffixURI_) public { _requireCallerIsContractOwner(); suffixURI = suffixURI_; emit SuffixURISet(suffixURI_); } } abstract contract MetadataURIInitializable is MetadataURI { error MetadataURIInitializable__URIAlreadyInitialized(); bool private _uriInitialized; /// @dev Initializes parameters of tokens with uri values. /// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167. function initializeURI(string memory baseURI_, string memory suffixURI_) public { _requireCallerIsContractOwner(); if(_uriInitialized) { revert MetadataURIInitializable__URIAlreadyInitialized(); } _uriInitialized = true; baseTokenURI = baseURI_; emit BaseURISet(baseURI_); suffixURI = suffixURI_; emit SuffixURISet(suffixURI_); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/Context.sol"; abstract contract OwnablePermissions is Context { function _requireCallerIsContractOwner() internal view virtual; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol) pragma solidity ^0.8.0; import "./IAccessControlEnumerable.sol"; import "./AccessControl.sol"; import "../utils/structs/EnumerableSet.sol"; /** * @dev Extension of {AccessControl} that allows enumerating the members of each role. */ abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl { using EnumerableSet for EnumerableSet.AddressSet; mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) { return _roleMembers[role].at(index); } /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) { return _roleMembers[role].length(); } /** * @dev Overload {_grantRole} to track enumerable memberships */ function _grantRole(bytes32 role, address account) internal virtual override { super._grantRole(role, account); _roleMembers[role].add(account); } /** * @dev Overload {_revokeRole} to track enumerable memberships */ function _revokeRole(bytes32 role, address account) internal virtual override { super._revokeRole(role, account); _roleMembers[role].remove(account); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; import "../../interfaces/IERC2981.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import { TokenOwner } from "../../DataTypes.sol"; import "@limitbreak/creator-token-contracts/contracts/access/OwnablePermissions.sol"; import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ abstract contract LazyMintERC721Base is OwnablePermissions, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; error LazyMintERC721Base__AddressZeroIsNotAValidOwner(); error LazyMintERC721Base__AmountExceedsMaxRemainingSupply(); error LazyMintERC721Base__AmountMustBeGreaterThanZero(); error LazyMintERC721Base__ApprovalToCurrentOwner(); error LazyMintERC721Base__ApproveCallerIsNotTokenOwnerOrApprovedForAll(); error LazyMintERC721Base__ApproveToCaller(); error LazyMintERC721Base__MaxSupplyMustBeGreaterThanZero(); error LazyMintERC721Base__MaxTokensPerConsecutiveTransferMustBeGreaterThanZero(); error LazyMintERC721Base__MaxTokensPerConsecutiveTransferUpperLimitExceeded(); error LazyMintERC721Base__TokenDoesNotExist(); error LazyMintERC721Base__TransferCallerIsNotOwnerNorApproved(); error LazyMintERC721Base__TransferFromIncorrectOwner(); error LazyMintERC721Base__TransferToNonERC721Receiver(); error LazyMintERC721Base__TransferToTheZeroAddress(); error LazyMintERC721Base__TransferToNonERC721ReceiverImplementer(); address public constant DEFAULT_TOKEN_OWNER = address(0x00000089E8825c9A59B4503398fAACF2e9A9CDb0); // Never allow more than 1 million tokens per consecutive transfer event uint256 public constant MAX_TOKENS_PER_CONSECUTIVE_TRANSFER_UPPER_LIMIT = 1_000_000; uint256 private _amountCreated; uint256 private _remainingMintableSupply; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address and a flag on whether it has left original default owner wallet mapping(uint256 => TokenOwner) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; event ConsecutiveTransfer( uint256 indexed fromTokenId, uint256 toTokenId, address indexed fromAddress, address indexed toAddress); // The recommended value for `maxTokensPerConsecutiveTransfer` is 5000, as this limit is imposed by OpenSea. // This value could go up or down in the future, so it is capped only by // `MAX_TOKENS_PER_CONSECUTIVE_TRANSFER_UPPER_LIMIT` (1 million). function mint(uint256 amount, uint256 maxTokensPerConsecutiveTransfer) external { _requireCallerIsMinterOrContractOwner(); if (amount == 0) { revert LazyMintERC721Base__AmountMustBeGreaterThanZero(); } if (amount > _remainingMintableSupply) { revert LazyMintERC721Base__AmountExceedsMaxRemainingSupply(); } if (maxTokensPerConsecutiveTransfer == 0) { revert LazyMintERC721Base__MaxTokensPerConsecutiveTransferMustBeGreaterThanZero(); } if (maxTokensPerConsecutiveTransfer > MAX_TOKENS_PER_CONSECUTIVE_TRANSFER_UPPER_LIMIT) { revert LazyMintERC721Base__MaxTokensPerConsecutiveTransferUpperLimitExceeded(); } _balances[DEFAULT_TOKEN_OWNER] += amount; unchecked { uint256 tokenStartId = _amountCreated + 1; uint256 tokenStopId = tokenStartId + amount - 1; for (tokenStartId; tokenStartId <= tokenStopId; tokenStartId += maxTokensPerConsecutiveTransfer) { uint256 tokenEndId = tokenStartId + maxTokensPerConsecutiveTransfer - 1; if (tokenEndId > tokenStopId) { tokenEndId = tokenStopId; } emit ConsecutiveTransfer(tokenStartId, tokenEndId, address(0), DEFAULT_TOKEN_OWNER); } _amountCreated += amount; _remainingMintableSupply -= amount; } } function approve(address to, uint256 tokenId) public virtual override { address owner_ = ownerOf(tokenId); if (to == owner_) { revert LazyMintERC721Base__ApprovalToCurrentOwner(); } if (!(_msgSender() == owner_ || isApprovedForAll(owner_, _msgSender()))) { revert LazyMintERC721Base__ApproveCallerIsNotTokenOwnerOrApprovedForAll(); } _tokenApprovals[tokenId] = to; emit Approval(owner_, to, tokenId); } function setApprovalForAll(address operator, bool approved) public virtual override { if (_msgSender() == operator) { revert LazyMintERC721Base__ApproveToCaller(); } _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } function transferFrom( address from, address to, uint256 tokenId ) public virtual override { (address owner_, TokenOwner storage tokenOwner_) = _ownerOf(tokenId); bool isApprovedOrOwner_ = ( _msgSender() == owner_ || _operatorApprovals[owner_][_msgSender()] || _tokenApprovals[tokenId] == _msgSender() ); if (!isApprovedOrOwner_) { revert LazyMintERC721Base__TransferCallerIsNotOwnerNorApproved(); } _transfer(owner_, tokenOwner_, from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { transferFrom(from, to, tokenId); if (!_checkOnERC721Received(from, to, tokenId, data)) { revert LazyMintERC721Base__TransferToNonERC721Receiver(); } } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } function amountCreated() public view returns (uint256) { return _amountCreated; } function remainingMintableSupply() public view returns (uint256) { return _remainingMintableSupply; } function balanceOf(address owner_) public view virtual override returns (uint256) { if (owner_ == address(0)) { revert LazyMintERC721Base__AddressZeroIsNotAValidOwner(); } return _balances[owner_]; } function ownerOf(uint256 tokenId) public view virtual override returns (address owner_) { (owner_, ) = _ownerOf(tokenId); } function getApproved(uint256 tokenId) public view virtual override returns (address) { if (!_exists(tokenId)) { revert LazyMintERC721Base__TokenDoesNotExist(); } return _tokenApprovals[tokenId]; } function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } function name() public view virtual override returns (string memory) { return _name; } function symbol() public view virtual override returns (string memory) { return _symbol; } function tokenURI(uint256 tokenId) public view virtual override returns (string memory); function _transfer( address owner_, TokenOwner storage tokenOwner_, address from, address to, uint256 tokenId) internal virtual { if (owner_ != from) { revert LazyMintERC721Base__TransferFromIncorrectOwner(); } if (to == address(0)) { revert LazyMintERC721Base__TransferToTheZeroAddress(); } _beforeTokenTransfer(from, to, tokenId, 1); delete _tokenApprovals[tokenId]; unchecked { _balances[from] -= 1; _balances[to] += 1; if (tokenOwner_.transferCount < type(uint88).max) { ++tokenOwner_.transferCount; } } tokenOwner_.transferred = true; tokenOwner_.ownerAddress = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId, 1); } function _safeTransfer( address owner_, TokenOwner storage tokenOwner_, address from, address to, uint256 tokenId, bytes memory data) internal virtual { _transfer(owner_, tokenOwner_, from, to, tokenId); if (!_checkOnERC721Received(from, to, tokenId, data)) { revert LazyMintERC721Base__TransferToNonERC721Receiver(); } } function _burn(address owner_, uint256 tokenId) internal virtual { _beforeTokenTransfer(owner_, address(0), tokenId, 1); delete _tokenApprovals[tokenId]; unchecked { _balances[owner_] -= 1; } _owners[tokenId].transferred = true; _owners[tokenId].ownerAddress = address(0); emit Transfer(owner_, address(0), tokenId); _afterTokenTransfer(owner_, address(0), tokenId, 1); } function _setMaxSupplyNameAndSymbol(uint256 maxSupply_, string memory name_, string memory symbol_) internal virtual { if (maxSupply_ == 0) { revert LazyMintERC721Base__MaxSupplyMustBeGreaterThanZero(); } _remainingMintableSupply = maxSupply_; _name = name_; _symbol = symbol_; } function _beforeTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} function _afterTokenTransfer( address from, address to, uint256 firstTokenId, uint256 batchSize ) internal virtual {} function _exists(uint256 tokenId) internal view virtual returns (bool) { if(_isValidTokenId(tokenId)) { TokenOwner memory tokenOwner = _owners[tokenId]; return tokenOwner.ownerAddress != address(0) || !tokenOwner.transferred; } else { return false; } } function _ownerOf(uint256 tokenId) internal view virtual returns (address owner_, TokenOwner storage tokenOwner_) { tokenOwner_ = _owners[tokenId]; if (tokenOwner_.transferred) { if (tokenOwner_.ownerAddress == address(0)) { revert LazyMintERC721Base__TokenDoesNotExist(); } owner_ = tokenOwner_.ownerAddress; } else { if (!_isValidTokenId(tokenId)) { revert LazyMintERC721Base__TokenDoesNotExist(); } owner_ = DEFAULT_TOKEN_OWNER; } } function _isValidTokenId(uint256 tokenId) internal view returns (bool) { return tokenId <= _amountCreated && tokenId > 0; } /** * @dev Validates that the caller is a minter * @dev Throws when the caller is not a minter */ function _requireCallerIsMinterOrContractOwner() internal view virtual { _requireCallerIsContractOwner(); } function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert LazyMintERC721Base__TransferToNonERC721ReceiverImplementer(); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } } abstract contract LazyMintERC721 is LazyMintERC721Base { constructor(uint256 maxSupply_, string memory name_, string memory symbol_) { _setMaxSupplyNameAndSymbol(maxSupply_, name_, symbol_); } } abstract contract LazyMintERC721Initializable is LazyMintERC721Base { error LazyMintERC721Initializable__AlreadyInitializedERC721(); /// @notice Specifies whether or not the contract is initialized bool private _erc721Initialized; /// @dev Initializes parameters of ERC721 tokens. /// These cannot be set in the constructor because this contract is optionally compatible with EIP-1167. function initializeERC721(uint256 maxSupply_, string memory name_, string memory symbol_) public { _requireCallerIsContractOwner(); if(_erc721Initialized) { revert LazyMintERC721Initializable__AlreadyInitializedERC721(); } _erc721Initialized = true; _setMaxSupplyNameAndSymbol(maxSupply_, name_, symbol_); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../access/OwnablePermissions.sol"; import "../interfaces/ICreatorToken.sol"; import "../interfaces/ICreatorTokenTransferValidator.sol"; import "../utils/TransferValidation.sol"; import "@openzeppelin/contracts/interfaces/IERC165.sol"; /** * @title CreatorTokenBase * @author Limit Break, Inc. * @notice CreatorTokenBase is an abstract contract that provides basic functionality for managing token * transfer policies through an implementation of ICreatorTokenTransferValidator. This contract is intended to be used * as a base for creator-specific token contracts, enabling customizable transfer restrictions and security policies. * * <h4>Features:</h4> * <ul>Ownable: This contract can have an owner who can set and update the transfer validator.</ul> * <ul>TransferValidation: Implements the basic token transfer validation interface.</ul> * <ul>ICreatorToken: Implements the interface for creator tokens, providing view functions for token security policies.</ul> * * <h4>Benefits:</h4> * <ul>Provides a flexible and modular way to implement custom token transfer restrictions and security policies.</ul> * <ul>Allows creators to enforce policies such as whitelisted operators and permitted contract receivers.</ul> * <ul>Can be easily integrated into other token contracts as a base contract.</ul> * * <h4>Intended Usage:</h4> * <ul>Use as a base contract for creator token implementations that require advanced transfer restrictions and * security policies.</ul> * <ul>Set and update the ICreatorTokenTransferValidator implementation contract to enforce desired policies for the * creator token.</ul> */ abstract contract CreatorTokenBase is OwnablePermissions, TransferValidation, ICreatorToken { error CreatorTokenBase__InvalidTransferValidatorContract(); error CreatorTokenBase__SetTransferValidatorFirst(); address public constant DEFAULT_TRANSFER_VALIDATOR = address(0x0000721C310194CcfC01E523fc93C9cCcFa2A0Ac); TransferSecurityLevels public constant DEFAULT_TRANSFER_SECURITY_LEVEL = TransferSecurityLevels.One; uint120 public constant DEFAULT_OPERATOR_WHITELIST_ID = uint120(1); ICreatorTokenTransferValidator private transferValidator; /** * @notice Allows the contract owner to set the transfer validator to the official validator contract * and set the security policy to the recommended default settings. * @dev May be overridden to change the default behavior of an individual collection. */ function setToDefaultSecurityPolicy() public virtual { _requireCallerIsContractOwner(); setTransferValidator(DEFAULT_TRANSFER_VALIDATOR); ICreatorTokenTransferValidator(DEFAULT_TRANSFER_VALIDATOR).setTransferSecurityLevelOfCollection(address(this), DEFAULT_TRANSFER_SECURITY_LEVEL); ICreatorTokenTransferValidator(DEFAULT_TRANSFER_VALIDATOR).setOperatorWhitelistOfCollection(address(this), DEFAULT_OPERATOR_WHITELIST_ID); } /** * @notice Allows the contract owner to set the transfer validator to a custom validator contract * and set the security policy to their own custom settings. */ function setToCustomValidatorAndSecurityPolicy( address validator, TransferSecurityLevels level, uint120 operatorWhitelistId, uint120 permittedContractReceiversAllowlistId) public { _requireCallerIsContractOwner(); setTransferValidator(validator); ICreatorTokenTransferValidator(validator). setTransferSecurityLevelOfCollection(address(this), level); ICreatorTokenTransferValidator(validator). setOperatorWhitelistOfCollection(address(this), operatorWhitelistId); ICreatorTokenTransferValidator(validator). setPermittedContractReceiverAllowlistOfCollection(address(this), permittedContractReceiversAllowlistId); } /** * @notice Allows the contract owner to set the security policy to their own custom settings. * @dev Reverts if the transfer validator has not been set. */ function setToCustomSecurityPolicy( TransferSecurityLevels level, uint120 operatorWhitelistId, uint120 permittedContractReceiversAllowlistId) public { _requireCallerIsContractOwner(); ICreatorTokenTransferValidator validator = getTransferValidator(); if (address(validator) == address(0)) { revert CreatorTokenBase__SetTransferValidatorFirst(); } validator.setTransferSecurityLevelOfCollection(address(this), level); validator.setOperatorWhitelistOfCollection(address(this), operatorWhitelistId); validator.setPermittedContractReceiverAllowlistOfCollection(address(this), permittedContractReceiversAllowlistId); } /** * @notice Sets the transfer validator for the token contract. * * @dev Throws when provided validator contract is not the zero address and doesn't support * the ICreatorTokenTransferValidator interface. * @dev Throws when the caller is not the contract owner. * * @dev <h4>Postconditions:</h4> * 1. The transferValidator address is updated. * 2. The `TransferValidatorUpdated` event is emitted. * * @param transferValidator_ The address of the transfer validator contract. */ function setTransferValidator(address transferValidator_) public { _requireCallerIsContractOwner(); bool isValidTransferValidator = false; if(transferValidator_.code.length > 0) { try IERC165(transferValidator_).supportsInterface(type(ICreatorTokenTransferValidator).interfaceId) returns (bool supportsInterface) { isValidTransferValidator = supportsInterface; } catch {} } if(transferValidator_ != address(0) && !isValidTransferValidator) { revert CreatorTokenBase__InvalidTransferValidatorContract(); } emit TransferValidatorUpdated(address(transferValidator), transferValidator_); transferValidator = ICreatorTokenTransferValidator(transferValidator_); } /** * @notice Returns the transfer validator contract address for this token contract. */ function getTransferValidator() public view override returns (ICreatorTokenTransferValidator) { return transferValidator; } /** * @notice Returns the security policy for this token contract, which includes: * Transfer security level, operator whitelist id, permitted contract receiver allowlist id. */ function getSecurityPolicy() public view override returns (CollectionSecurityPolicy memory) { if (address(transferValidator) != address(0)) { return transferValidator.getCollectionSecurityPolicy(address(this)); } return CollectionSecurityPolicy({ transferSecurityLevel: TransferSecurityLevels.Zero, operatorWhitelistId: 0, permittedContractReceiversId: 0 }); } /** * @notice Returns the list of all whitelisted operators for this token contract. * @dev This can be an expensive call and should only be used in view-only functions. */ function getWhitelistedOperators() public view override returns (address[] memory) { if (address(transferValidator) != address(0)) { return transferValidator.getWhitelistedOperators( transferValidator.getCollectionSecurityPolicy(address(this)).operatorWhitelistId); } return new address[](0); } /** * @notice Returns the list of permitted contract receivers for this token contract. * @dev This can be an expensive call and should only be used in view-only functions. */ function getPermittedContractReceivers() public view override returns (address[] memory) { if (address(transferValidator) != address(0)) { return transferValidator.getPermittedContractReceivers( transferValidator.getCollectionSecurityPolicy(address(this)).permittedContractReceiversId); } return new address[](0); } /** * @notice Checks if an operator is whitelisted for this token contract. * @param operator The address of the operator to check. */ function isOperatorWhitelisted(address operator) public view override returns (bool) { if (address(transferValidator) != address(0)) { return transferValidator.isOperatorWhitelisted( transferValidator.getCollectionSecurityPolicy(address(this)).operatorWhitelistId, operator); } return false; } /** * @notice Checks if a contract receiver is permitted for this token contract. * @param receiver The address of the receiver to check. */ function isContractReceiverPermitted(address receiver) public view override returns (bool) { if (address(transferValidator) != address(0)) { return transferValidator.isContractReceiverPermitted( transferValidator.getCollectionSecurityPolicy(address(this)).permittedContractReceiversId, receiver); } return false; } /** * @notice Determines if a transfer is allowed based on the token contract's security policy. Use this function * to simulate whether or not a transfer made by the specified `caller` from the `from` address to the `to` * address would be allowed by this token's security policy. * * @notice This function only checks the security policy restrictions and does not check whether token ownership * or approvals are in place. * * @param caller The address of the simulated caller. * @param from The address of the sender. * @param to The address of the receiver. * @return True if the transfer is allowed, false otherwise. */ function isTransferAllowed(address caller, address from, address to) public view override returns (bool) { if (address(transferValidator) != address(0)) { try transferValidator.applyCollectionTransferPolicy(caller, from, to) { return true; } catch { return false; } } return true; } /** * @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy. * Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent * and calling _validateBeforeTransfer so that checks can be properly applied during token transfers. * * @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is * set to a non-zero address. * * @param caller The address of the caller. * @param from The address of the sender. * @param to The address of the receiver. */ function _preValidateTransfer( address caller, address from, address to, uint256 /*tokenId*/, uint256 /*value*/) internal virtual override { if (address(transferValidator) != address(0)) { transferValidator.applyCollectionTransferPolicy(caller, from, to); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; /** * @dev External interface of AccessControlEnumerable declared to support ERC165 detection. */ interface IAccessControlEnumerable is IAccessControl { /** * @dev Returns one of the accounts that have `role`. `index` must be a * value between 0 and {getRoleMemberCount}, non-inclusive. * * Role bearers are not sorted in any particular way, and their ordering may * change at any point. * * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure * you perform all queries on the same block. See the following * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] * for more information. */ function getRoleMember(bytes32 role, uint256 index) external view returns (address); /** * @dev Returns the number of accounts that have `role`. Can be used * together with {getRoleMember} to enumerate all bearers of a role. */ function getRoleMemberCount(bytes32 role) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../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: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol) // This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure * unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an * array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { bytes32[] memory store = _values(set._inner); bytes32[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values in the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. */ function royaltyInfo(uint256 tokenId, uint256 salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; struct TokenOwner { bool transferred; uint88 transferCount; address ownerAddress; } struct SignatureECDSA { uint8 v; bytes32 r; bytes32 s; } struct Redemption721 { uint256 nonce; uint256 expiration; address destination; address tokenAddress; uint256 tokenId; } struct RedemptionBatch721 { uint256 nonce; uint256 expiration; address destination; address[] tokenAddresses; uint256[] tokenIds; } struct Redemption1155 { uint256 nonce; uint256 expiration; address destination; address tokenAddress; uint256[] tokenIds; uint256[] amounts; } struct TokenTypeSupply { bool registered; uint120 amountCreated; uint120 remainingMintableSupply; } struct AuthorizedMint1155 { uint256 nonce; uint256 expiration; address destination; uint256 id; uint120 amount; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must * understand this adds an external call which potentially creates a reentrancy vulnerability. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../interfaces/ICreatorTokenTransferValidator.sol"; interface ICreatorToken { event TransferValidatorUpdated(address oldValidator, address newValidator); function getTransferValidator() external view returns (ICreatorTokenTransferValidator); function getSecurityPolicy() external view returns (CollectionSecurityPolicy memory); function getWhitelistedOperators() external view returns (address[] memory); function getPermittedContractReceivers() external view returns (address[] memory); function isOperatorWhitelisted(address operator) external view returns (bool); function isContractReceiverPermitted(address receiver) external view returns (bool); function isTransferAllowed(address caller, address from, address to) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./IEOARegistry.sol"; import "./ITransferSecurityRegistry.sol"; import "./ITransferValidator.sol"; interface ICreatorTokenTransferValidator is ITransferSecurityRegistry, ITransferValidator, IEOARegistry {}
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/Context.sol"; /** * @title TransferValidation * @author Limit Break, Inc. * @notice A mix-in that can be combined with ERC-721 contracts to provide more granular hooks. * Openzeppelin's ERC721 contract only provides hooks for before and after transfer. This allows * developers to validate or customize transfers within the context of a mint, a burn, or a transfer. */ abstract contract TransferValidation is Context { error ShouldNotMintToBurnAddress(); /// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks. function _validateBeforeTransfer(address from, address to, uint256 tokenId) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _preValidateMint(_msgSender(), to, tokenId, msg.value); } else if(toZeroAddress) { _preValidateBurn(_msgSender(), from, tokenId, msg.value); } else { _preValidateTransfer(_msgSender(), from, to, tokenId, msg.value); } } /// @dev Inheriting contracts should call this function in the _afterTokenTransfer function to get more granular hooks. function _validateAfterTransfer(address from, address to, uint256 tokenId) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _postValidateMint(_msgSender(), to, tokenId, msg.value); } else if(toZeroAddress) { _postValidateBurn(_msgSender(), from, tokenId, msg.value); } else { _postValidateTransfer(_msgSender(), from, to, tokenId, msg.value); } } /// @dev Optional validation hook that fires before a mint function _preValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a mint function _postValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a burn function _preValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a burn function _postValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a transfer function _preValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a transfer function _postValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol";
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10**64) { value /= 10**64; result += 64; } if (value >= 10**32) { value /= 10**32; result += 32; } if (value >= 10**16) { value /= 10**16; result += 16; } if (value >= 10**8) { value /= 10**8; result += 8; } if (value >= 10**4) { value /= 10**4; result += 4; } if (value >= 10**2) { value /= 10**2; result += 2; } if (value >= 10**1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; interface IEOARegistry is IERC165 { function isVerifiedEOA(address account) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../utils/TransferPolicy.sol"; interface ITransferSecurityRegistry { event AddedToAllowlist(AllowlistTypes indexed kind, uint256 indexed id, address indexed account); event CreatedAllowlist(AllowlistTypes indexed kind, uint256 indexed id, string indexed name); event ReassignedAllowlistOwnership(AllowlistTypes indexed kind, uint256 indexed id, address indexed newOwner); event RemovedFromAllowlist(AllowlistTypes indexed kind, uint256 indexed id, address indexed account); event SetAllowlist(AllowlistTypes indexed kind, address indexed collection, uint120 indexed id); event SetTransferSecurityLevel(address indexed collection, TransferSecurityLevels level); function createOperatorWhitelist(string calldata name) external returns (uint120); function createPermittedContractReceiverAllowlist(string calldata name) external returns (uint120); function reassignOwnershipOfOperatorWhitelist(uint120 id, address newOwner) external; function reassignOwnershipOfPermittedContractReceiverAllowlist(uint120 id, address newOwner) external; function renounceOwnershipOfOperatorWhitelist(uint120 id) external; function renounceOwnershipOfPermittedContractReceiverAllowlist(uint120 id) external; function setTransferSecurityLevelOfCollection(address collection, TransferSecurityLevels level) external; function setOperatorWhitelistOfCollection(address collection, uint120 id) external; function setPermittedContractReceiverAllowlistOfCollection(address collection, uint120 id) external; function addOperatorToWhitelist(uint120 id, address operator) external; function addPermittedContractReceiverToAllowlist(uint120 id, address receiver) external; function removeOperatorFromWhitelist(uint120 id, address operator) external; function removePermittedContractReceiverFromAllowlist(uint120 id, address receiver) external; function getCollectionSecurityPolicy(address collection) external view returns (CollectionSecurityPolicy memory); function getWhitelistedOperators(uint120 id) external view returns (address[] memory); function getPermittedContractReceivers(uint120 id) external view returns (address[] memory); function isOperatorWhitelisted(uint120 id, address operator) external view returns (bool); function isContractReceiverPermitted(uint120 id, address receiver) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../utils/TransferPolicy.sol"; interface ITransferValidator { function applyCollectionTransferPolicy(address caller, address from, address to) external view; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; enum AllowlistTypes { Operators, PermittedContractReceivers } enum ReceiverConstraints { None, NoCode, EOA } enum CallerConstraints { None, OperatorWhitelistEnableOTC, OperatorWhitelistDisableOTC } enum StakerConstraints { None, CallerIsTxOrigin, EOA } enum TransferSecurityLevels { Zero, One, Two, Three, Four, Five, Six } struct TransferSecurityPolicy { CallerConstraints callerConstraints; ReceiverConstraints receiverConstraints; } struct CollectionSecurityPolicy { TransferSecurityLevels transferSecurityLevel; uint120 operatorWhitelistId; uint120 permittedContractReceiversId; }
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