Joshua Collection: JC Token
Token Contract
Overview
ETH Balance
0.3 ETH
Eth Value
$788.70 (@ $2,629.01/ETH)More Info
Private Name Tags
ContractCreator
TokenTracker
Latest 11 from a total of 11 transactions
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Transfer From | 17468667 | 435 days ago | IN | 0 ETH | 0.00131406 | ||||
Safe Transfer Fr... | 16761909 | 535 days ago | IN | 0 ETH | 0.00168609 | ||||
Mint | 16761890 | 535 days ago | IN | 0.05 ETH | 0.00381635 | ||||
Mint | 16761327 | 535 days ago | IN | 0.05 ETH | 0.00388664 | ||||
Mint | 16698373 | 544 days ago | IN | 0.05 ETH | 0.00559923 | ||||
Batch Airdrop | 16697085 | 544 days ago | IN | 0 ETH | 0.00499072 | ||||
Mint | 16690078 | 545 days ago | IN | 0.05 ETH | 0.00542173 | ||||
Mint | 16682506 | 546 days ago | IN | 0.05 ETH | 0.00505926 | ||||
Mint | 16675435 | 547 days ago | IN | 0.05 ETH | 0.00578658 | ||||
Start Sale | 16668943 | 548 days ago | IN | 0 ETH | 0.00426481 | ||||
Set Base URI | 16668848 | 548 days ago | IN | 0 ETH | 0.00225464 |
Latest 1 internal transaction
Advanced mode:
Parent Transaction Hash | Block | From | To | |||
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16668838 | 548 days ago | Contract Creation | 0 ETH |
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Minimal Proxy Contract for 0xea282fd2a81293a39d9b203a85591df30779ef0d
Contract Name:
OFDropCollection
Compiler Version
v0.8.15+commit.e14f2714
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol"; import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721EnumerableUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/cryptography/MerkleProofUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/math/SafeMathUpgradeable.sol"; import "../interfaces/IOperatorRegistry.sol"; import "../OFBaseCollection.sol"; contract OFDropCollection is OFBaseCollection, ERC721Upgradeable, ERC721EnumerableUpgradeable { using SafeMathUpgradeable for uint256; mapping(address => uint256) private _mintCount; bytes32 private _merkleRoot; string private _tokenBaseURI; // Sales Parameters uint256 private _maxAmount; uint256 private _maxPerMint; uint256 private _maxPerWallet; uint256 private _price; // States bool private _presaleActive = false; bool private _saleActive = false; /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } modifier onlyMintable(uint64 quantity) { require(quantity > 0, "Quantity is 0"); require( _maxAmount > 0 ? totalSupply().add(quantity) <= _maxAmount : true, "Exceeded max supply" ); require(quantity <= _maxPerMint, "Exceeded max per mint"); _; } function initialize( address owner_, string memory name_, string memory symbol_, address treasury_, address royalty_, uint96 royaltyFee_ ) public initializer { __ERC721_init(name_, symbol_); __ERC721Enumerable_init(); __BaseCollection_init(owner_, treasury_, royalty_, royaltyFee_); } function mint(uint64 quantity) external payable onlyMintable(quantity) { require(!_presaleActive, "Presale active"); require(_saleActive, "Sale not active"); require( _mintCount[_msgSender()].add(quantity) <= _maxPerWallet, "Exceeded max per wallet" ); _purchaseMint(quantity, _msgSender()); } function mintTo(address recipient, uint64 quantity) external payable onlyMintable(quantity) { require(!_presaleActive, "Presale active"); require(_saleActive, "Sale not active"); require( _mintCount[recipient].add(quantity) <= _maxPerWallet, "Exceeded max per wallet" ); _purchaseMint(quantity, recipient); } function presaleMint( uint64 quantity, uint256 allowed, bytes32[] calldata proof ) external payable onlyMintable(quantity) { uint256 mintQuantity = _mintCount[_msgSender()].add(quantity); require(_presaleActive, "Presale not active"); require(_merkleRoot != "", "Presale not set"); require(mintQuantity <= _maxPerWallet, "Exceeded max per wallet"); require(mintQuantity <= allowed, "Exceeded max per wallet"); require( MerkleProofUpgradeable.verify( proof, _merkleRoot, keccak256(abi.encodePacked(_msgSender(), allowed)) ), "Presale invalid" ); _purchaseMint(quantity, _msgSender()); } function presaleMintTo( address recipient, uint64 quantity, uint256 allowed, bytes32[] calldata proof ) external payable onlyMintable(quantity) { uint256 mintQuantity = _mintCount[recipient].add(quantity); require(_presaleActive, "Presale not active"); require(_merkleRoot != "", "Presale not set"); require(mintQuantity <= _maxPerWallet, "Exceeded max per wallet"); require(mintQuantity <= allowed, "Exceeded max per wallet"); require( MerkleProofUpgradeable.verify( proof, _merkleRoot, keccak256(abi.encodePacked(recipient, allowed)) ), "Presale invalid" ); _purchaseMint(quantity, recipient); } function batchAirdrop( uint64[] calldata quantities, address[] calldata recipients ) external onlyRolesOrOwner(MANAGER_ROLE) { uint256 length = recipients.length; require(quantities.length == length, "Invalid Arguments"); for (uint256 i = 0; i < length; ) { _mint(quantities[i], recipients[i]); unchecked { i++; } } } function setMerkleRoot(bytes32 newRoot) external onlyRolesOrOwner(MANAGER_ROLE) { _merkleRoot = newRoot; } function startSale( uint256 newMaxAmount, uint256 newMaxPerMint, uint256 newMaxPerWallet, uint256 newPrice, bool presale ) external onlyRolesOrOwner(MANAGER_ROLE) { _saleActive = true; _presaleActive = presale; _maxAmount = newMaxAmount; _maxPerMint = newMaxPerMint; _maxPerWallet = newMaxPerWallet; _price = newPrice; } function stopSale() external onlyRolesOrOwner(MANAGER_ROLE) { _saleActive = false; _presaleActive = false; } function setBaseURI(string memory newBaseURI) external onlyRolesOrOwner(MANAGER_ROLE) { _tokenBaseURI = newBaseURI; } function burn(uint256 tokenId) external onlyRoles(BURNER_ROLE) { require(AddressUpgradeable.isContract(_msgSender()), "Not Allowed"); _burn(tokenId); } function maxAmount() external view returns (uint256) { return _maxAmount; } function maxPerMint() external view returns (uint256) { return _maxPerMint; } function maxPerWallet() external view returns (uint256) { return _maxPerWallet; } function price() external view returns (uint256) { return _price; } function presaleActive() external view returns (bool) { return _presaleActive; } function saleActive() external view returns (bool) { return _saleActive; } function _baseURI() internal view virtual override returns (string memory) { return _tokenBaseURI; } function _purchaseMint(uint64 quantity, address to) internal { require(_price.mul(quantity) <= msg.value, "Value incorrect"); unchecked { _totalRevenue = _totalRevenue.add(msg.value); _mintCount[to] = _mintCount[to].add(quantity); } _niftyKit.addFees(msg.value); _mint(quantity, to); } function _mint(uint64 quantity, address to) internal { for (uint64 i = 0; i < quantity; ) { _safeMint(to, totalSupply().add(1)); unchecked { i++; } } } function approve(address to, uint256 tokenId) public virtual override(ERC721Upgradeable, IERC721Upgradeable) onlyAllowedOperatorApproval(to) { ERC721Upgradeable.approve(to, tokenId); } function setApprovalForAll(address operator, bool approved) public virtual override(ERC721Upgradeable, IERC721Upgradeable) onlyAllowedOperatorApproval(operator) { ERC721Upgradeable.setApprovalForAll(operator, approved); } function transferFrom( address from, address to, uint256 tokenId ) public override(ERC721Upgradeable, IERC721Upgradeable) onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) public override(ERC721Upgradeable, IERC721Upgradeable) onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public override(ERC721Upgradeable, IERC721Upgradeable) onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } // The following functions are overrides required by Solidity. function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override(ERC721Upgradeable, ERC721EnumerableUpgradeable) { super._beforeTokenTransfer(from, to, tokenId); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override( ERC721Upgradeable, ERC721EnumerableUpgradeable, OFBaseCollection ) returns (bool) { return ERC721Upgradeable.supportsInterface(interfaceId) || ERC721EnumerableUpgradeable.supportsInterface(interfaceId) || OFBaseCollection.supportsInterface(interfaceId) || super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165Upgradeable.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981Upgradeable is IERC165Upgradeable { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be 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 (last updated v4.7.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ``` * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original * initialization step. This is essential to configure modules that are added through upgrades and that require * initialization. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized < type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; import "../../interfaces/IERC2981Upgradeable.sol"; import "../../utils/introspection/ERC165Upgradeable.sol"; import "../../proxy/utils/Initializable.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 ERC2981Upgradeable is Initializable, IERC2981Upgradeable, ERC165Upgradeable { function __ERC2981_init() internal onlyInitializing { } function __ERC2981_init_unchained() internal onlyInitializing { } 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(IERC165Upgradeable, ERC165Upgradeable) returns (bool) { return interfaceId == type(IERC2981Upgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981Upgradeable */ 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]; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[48] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721Upgradeable.sol"; import "./IERC721ReceiverUpgradeable.sol"; import "./extensions/IERC721MetadataUpgradeable.sol"; import "../../utils/AddressUpgradeable.sol"; import "../../utils/ContextUpgradeable.sol"; import "../../utils/StringsUpgradeable.sol"; import "../../utils/introspection/ERC165Upgradeable.sol"; import "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable { using AddressUpgradeable for address; using StringsUpgradeable for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing { __ERC721_init_unchained(name_, symbol_); } function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) { return interfaceId == type(IERC721Upgradeable).interfaceId || interfaceId == type(IERC721MetadataUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721Upgradeable.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721Upgradeable.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721Upgradeable.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721ReceiverUpgradeable.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[44] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; import "../ERC721Upgradeable.sol"; import "./IERC721EnumerableUpgradeable.sol"; import "../../../proxy/utils/Initializable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721EnumerableUpgradeable is Initializable, ERC721Upgradeable, IERC721EnumerableUpgradeable { function __ERC721Enumerable_init() internal onlyInitializing { } function __ERC721Enumerable_init_unchained() internal onlyInitializing { } // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165Upgradeable, ERC721Upgradeable) returns (bool) { return interfaceId == type(IERC721EnumerableUpgradeable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721Upgradeable.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721EnumerableUpgradeable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721Upgradeable.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721Upgradeable.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[46] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; import "../IERC721Upgradeable.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721EnumerableUpgradeable is IERC721Upgradeable { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721Upgradeable.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721MetadataUpgradeable is IERC721Upgradeable { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (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 IERC721ReceiverUpgradeable { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165Upgradeable.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721Upgradeable is IERC165Upgradeable { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev 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 v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; import "../proxy/utils/Initializable.sol"; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Tree proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. */ library MerkleProofUpgradeable { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Calldata version of {verify} * * _Available since v4.7._ */ function verifyCalldata( bytes32[] calldata proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProofCalldata(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Calldata version of {processProof} * * _Available since v4.7._ */ function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { computedHash = _hashPair(computedHash, proof[i]); } return computedHash; } /** * @dev Returns true if the `leaves` can be proved to be a part of a Merkle tree defined by * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}. * * _Available since v4.7._ */ function multiProofVerify( bytes32[] memory proof, bool[] memory proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProof(proof, proofFlags, leaves) == root; } /** * @dev Calldata version of {multiProofVerify} * * _Available since v4.7._ */ function multiProofVerifyCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32 root, bytes32[] memory leaves ) internal pure returns (bool) { return processMultiProofCalldata(proof, proofFlags, leaves) == root; } /** * @dev Returns the root of a tree reconstructed from `leaves` and the sibling nodes in `proof`, * consuming from one or the other at each step according to the instructions given by * `proofFlags`. * * _Available since v4.7._ */ function processMultiProof( bytes32[] memory proof, bool[] memory proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } /** * @dev Calldata version of {processMultiProof} * * _Available since v4.7._ */ function processMultiProofCalldata( bytes32[] calldata proof, bool[] calldata proofFlags, bytes32[] memory leaves ) internal pure returns (bytes32 merkleRoot) { // This function rebuild the root hash by traversing the tree up from the leaves. The root is rebuilt by // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of // the merkle tree. uint256 leavesLen = leaves.length; uint256 totalHashes = proofFlags.length; // Check proof validity. require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". bytes32[] memory hashes = new bytes32[](totalHashes); uint256 leafPos = 0; uint256 hashPos = 0; uint256 proofPos = 0; // At each step, we compute the next hash using two values: // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we // get the next hash. // - depending on the flag, either another value for the "main queue" (merging branches) or an element from the // `proof` array. for (uint256 i = 0; i < totalHashes; i++) { bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; bytes32 b = proofFlags[i] ? leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++] : proof[proofPos++]; hashes[i] = _hashPair(a, b); } if (totalHashes > 0) { return hashes[totalHashes - 1]; } else if (leavesLen > 0) { return leaves[0]; } else { return proof[0]; } } function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { return a < b ? _efficientHash(a, b) : _efficientHash(b, a); } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { /// @solidity memory-safe-assembly assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.2) (utils/introspection/ERC165Checker.sol) pragma solidity ^0.8.0; import "./IERC165Upgradeable.sol"; /** * @dev Library used to query support of an interface declared via {IERC165}. * * Note that these functions return the actual result of the query: they do not * `revert` if an interface is not supported. It is up to the caller to decide * what to do in these cases. */ library ERC165CheckerUpgradeable { // As per the EIP-165 spec, no interface should ever match 0xffffffff bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff; /** * @dev Returns true if `account` supports the {IERC165} interface, */ function supportsERC165(address account) internal view returns (bool) { // Any contract that implements ERC165 must explicitly indicate support of // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid return _supportsERC165Interface(account, type(IERC165Upgradeable).interfaceId) && !_supportsERC165Interface(account, _INTERFACE_ID_INVALID); } /** * @dev Returns true if `account` supports the interface defined by * `interfaceId`. Support for {IERC165} itself is queried automatically. * * See {IERC165-supportsInterface}. */ function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) { // query support of both ERC165 as per the spec and support of _interfaceId return supportsERC165(account) && _supportsERC165Interface(account, interfaceId); } /** * @dev Returns a boolean array where each value corresponds to the * interfaces passed in and whether they're supported or not. This allows * you to batch check interfaces for a contract where your expectation * is that some interfaces may not be supported. * * See {IERC165-supportsInterface}. * * _Available since v3.4._ */ function getSupportedInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool[] memory) { // an array of booleans corresponding to interfaceIds and whether they're supported or not bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length); // query support of ERC165 itself if (supportsERC165(account)) { // query support of each interface in interfaceIds for (uint256 i = 0; i < interfaceIds.length; i++) { interfaceIdsSupported[i] = _supportsERC165Interface(account, interfaceIds[i]); } } return interfaceIdsSupported; } /** * @dev Returns true if `account` supports all the interfaces defined in * `interfaceIds`. Support for {IERC165} itself is queried automatically. * * Batch-querying can lead to gas savings by skipping repeated checks for * {IERC165} support. * * See {IERC165-supportsInterface}. */ function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) { // query support of ERC165 itself if (!supportsERC165(account)) { return false; } // query support of each interface in _interfaceIds for (uint256 i = 0; i < interfaceIds.length; i++) { if (!_supportsERC165Interface(account, interfaceIds[i])) { return false; } } // all interfaces supported return true; } /** * @notice Query if a contract implements an interface, does not check ERC165 support * @param account The address of the contract to query for support of an interface * @param interfaceId The interface identifier, as specified in ERC-165 * @return true if the contract at account indicates support of the interface with * identifier interfaceId, false otherwise * @dev Assumes that account contains a contract that supports ERC165, otherwise * the behavior of this method is undefined. This precondition can be checked * with {supportsERC165}. * Interface identification is specified in ERC-165. */ function _supportsERC165Interface(address account, bytes4 interfaceId) private view returns (bool) { // prepare call bytes memory encodedParams = abi.encodeWithSelector(IERC165Upgradeable.supportsInterface.selector, interfaceId); // perform static call bool success; uint256 returnSize; uint256 returnValue; assembly { success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20) returnSize := returndatasize() returnValue := mload(0x00) } return success && returnSize >= 0x20 && returnValue > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165Upgradeable.sol"; import "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable { function __ERC165_init() internal onlyInitializing { } function __ERC165_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165Upgradeable).interfaceId; } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165Upgradeable { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol) pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler * now has built in overflow checking. */ library SafeMathUpgradeable { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the subtraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library StringsUpgradeable { bytes16 private constant _HEX_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) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @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; /// @notice Optimized and flexible operator filterer to abide to OpenSea's /// mandatory on-chain royalty enforcement in order for new collections to /// receive royalties. /// For more information, see: /// See: https://github.com/ProjectOpenSea/operator-filter-registry abstract contract OperatorFilterer { /// @dev The default OpenSea operator blocklist subscription. address internal constant _DEFAULT_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6; /// @dev The OpenSea operator filter registry. address internal constant _OPERATOR_FILTER_REGISTRY = 0x000000000000AAeB6D7670E522A718067333cd4E; /// @dev Registers the current contract to OpenSea's operator filter, /// and subscribe to the default OpenSea operator blocklist. /// Note: Will not revert nor update existing settings for repeated registration. function _registerForOperatorFiltering() internal virtual { _registerForOperatorFiltering(_DEFAULT_SUBSCRIPTION, true); } /// @dev Registers the current contract to OpenSea's operator filter. /// Note: Will not revert nor update existing settings for repeated registration. function _registerForOperatorFiltering(address subscriptionOrRegistrantToCopy, bool subscribe) internal virtual { /// @solidity memory-safe-assembly assembly { let functionSelector := 0x7d3e3dbe // `registerAndSubscribe(address,address)`. // Clean the upper 96 bits of `subscriptionOrRegistrantToCopy` in case they are dirty. subscriptionOrRegistrantToCopy := shr(96, shl(96, subscriptionOrRegistrantToCopy)) // prettier-ignore for {} iszero(subscribe) {} { if iszero(subscriptionOrRegistrantToCopy) { functionSelector := 0x4420e486 // `register(address)`. break } functionSelector := 0xa0af2903 // `registerAndCopyEntries(address,address)`. break } // Store the function selector. mstore(0x00, shl(224, functionSelector)) // Store the `address(this)`. mstore(0x04, address()) // Store the `subscriptionOrRegistrantToCopy`. mstore(0x24, subscriptionOrRegistrantToCopy) // Register into the registry. pop(call(gas(), _OPERATOR_FILTER_REGISTRY, 0, 0x00, 0x44, 0x00, 0x00)) // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, because of Solidity's memory size limits. mstore(0x24, 0) } } /// @dev Modifier to guard a function and revert if the caller is a blocked operator. modifier onlyAllowedOperator(address from) virtual { if (from != msg.sender) if (!_isPriorityOperator(msg.sender)) if (_operatorFilteringEnabled()) _revertIfBlocked(msg.sender); _; } /// @dev Modifier to guard a function from approving a blocked operator.. modifier onlyAllowedOperatorApproval(address operator) virtual { if (!_isPriorityOperator(operator)) if (_operatorFilteringEnabled()) _revertIfBlocked(operator); _; } /// @dev Helper function that reverts if the `operator` is blocked by the registry. function _revertIfBlocked(address operator) private view { /// @solidity memory-safe-assembly assembly { // Store the function selector of `isOperatorAllowed(address,address)`, // shifted left by 6 bytes, which is enough for 8tb of memory. // We waste 6-3 = 3 bytes to save on 6 runtime gas (PUSH1 0x224 SHL). mstore(0x00, 0xc6171134001122334455) // Store the `address(this)`. mstore(0x1a, address()) // Store the `operator`. mstore(0x3a, operator) // `isOperatorAllowed` always returns true if it does not revert. if iszero(staticcall(gas(), _OPERATOR_FILTER_REGISTRY, 0x16, 0x44, 0x00, 0x00)) { // Bubble up the revert if the staticcall reverts. returndatacopy(0x00, 0x00, returndatasize()) revert(0x00, returndatasize()) } // We'll skip checking if `from` is inside the blacklist. // Even though that can block transferring out of wrapper contracts, // we don't want tokens to be stuck. // Restore the part of the free memory pointer that was overwritten, // which is guaranteed to be zero, if less than 8tb of memory is used. mstore(0x3a, 0) } } /// @dev For deriving contracts to override, so that operator filtering /// can be turned on / off. function _operatorFilteringEnabled() internal view virtual returns (bool) { return true; } /// @dev For deriving contracts to override, such that preferred marketplaces can /// skip the operator filtering, helping users save gas. function _isPriorityOperator(address) internal view virtual returns (bool) { return false; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; interface IBaseCollection { event OperatorAllowed(bytes32 indexed operator, bool allowed); event OperatorBlocked(bytes32 indexed operator, bool blocked); /** * @dev Contract upgradeable initializer */ function initialize( address owner, string memory name, string memory symbol, address treasury, address royalty, uint96 royaltyFee ) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; interface INiftyKit { struct Entry { uint256 value; bool isValue; } /** * @dev Emitted when collection is created */ event CollectionCreated( uint96 indexed typeId, address indexed collectionAddress ); /** * @dev Emitted when user rate is updated */ event UserRateUpdated(address indexed user, uint256 indexed rate); /** * @dev Emitted when user rate is removed */ event UserRateRemoved(address indexed user, uint256 indexed rate); /** * @dev Returns the commission amount. */ function commission(address collection, uint256 amount) external view returns (uint256); /** * @dev Add fees from Collection */ function addFees(uint256 amount) external; /** * @dev Add fees claimed by the Collection */ function addFeesClaimed(uint256 amount) external; /** * @dev Get fees accrued by the account */ function getFees(address account) external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; interface IOperatorRegistry { event OperatorIdentified( bytes32 indexed identifer, address indexed operator ); function getIdentifier(address operator) external view returns (bytes32); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.9; import "solady/src/auth/OwnableRoles.sol"; import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/math/SafeMathUpgradeable.sol"; import "@openzeppelin/contracts-upgradeable/token/common/ERC2981Upgradeable.sol"; import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165CheckerUpgradeable.sol"; import "closedsea/src/OperatorFilterer.sol"; import "./interfaces/IBaseCollection.sol"; import "./interfaces/INiftyKit.sol"; abstract contract OFBaseCollection is OwnableRoles, OperatorFilterer, ContextUpgradeable, ERC2981Upgradeable, IBaseCollection { using AddressUpgradeable for address; using SafeMathUpgradeable for uint256; uint256 public constant ADMIN_ROLE = 1 << 0; uint256 public constant MANAGER_ROLE = 1 << 1; uint256 public constant BURNER_ROLE = 1 << 2; INiftyKit internal _niftyKit; address internal _treasury; uint256 internal _totalRevenue; // Operator Filtering bool internal operatorFilteringEnabled; function __BaseCollection_init( address owner_, address treasury_, address royalty_, uint96 royaltyFee_ ) internal onlyInitializing { _initializeOwner(owner_); __ERC2981_init(); _registerForOperatorFiltering(); _niftyKit = INiftyKit(_msgSender()); _treasury = treasury_; operatorFilteringEnabled = true; _setDefaultRoyalty(royalty_, royaltyFee_); } function withdraw() external onlyRolesOrOwner(ADMIN_ROLE) { require(address(this).balance > 0, "0 balance"); INiftyKit niftyKit = _niftyKit; uint256 balance = address(this).balance; uint256 fees = niftyKit.getFees(address(this)); niftyKit.addFeesClaimed(fees); AddressUpgradeable.sendValue(payable(address(niftyKit)), fees); AddressUpgradeable.sendValue(payable(_treasury), balance.sub(fees)); } function setTreasury(address newTreasury) external onlyRolesOrOwner(ADMIN_ROLE) { _treasury = newTreasury; } function setDefaultRoyalty(address receiver, uint96 feeNumerator) external onlyRolesOrOwner(ADMIN_ROLE) { _setDefaultRoyalty(receiver, feeNumerator); } function setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) external onlyRolesOrOwner(ADMIN_ROLE) { _setTokenRoyalty(tokenId, receiver, feeNumerator); } function setOperatorFilteringEnabled(bool value) public onlyRolesOrOwner(ADMIN_ROLE) { operatorFilteringEnabled = value; } function _operatorFilteringEnabled() internal view virtual override returns (bool) { return operatorFilteringEnabled; } function treasury() external view returns (address) { return _treasury; } function totalRevenue() external view returns (uint256) { return _totalRevenue; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC2981Upgradeable) returns (bool) { return interfaceId == type(IBaseCollection).interfaceId || super.supportsInterface(interfaceId); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @notice Simple single owner and multiroles authorization mixin. /// @author Solady (https://github.com/vectorized/solady/blob/main/src/auth/OwnableRoles.sol) /// @dev While the ownable portion follows [EIP-173](https://eips.ethereum.org/EIPS/eip-173) /// for compatibility, the nomenclature for the 2-step ownership handover and roles /// may be unique to this codebase. abstract contract OwnableRoles { /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* CUSTOM ERRORS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The caller is not authorized to call the function. error Unauthorized(); /// @dev The `newOwner` cannot be the zero address. error NewOwnerIsZeroAddress(); /// @dev The `pendingOwner` does not have a valid handover request. error NoHandoverRequest(); /// @dev `bytes4(keccak256(bytes("Unauthorized()")))`. uint256 private constant _UNAUTHORIZED_ERROR_SELECTOR = 0x82b42900; /// @dev `bytes4(keccak256(bytes("NewOwnerIsZeroAddress()")))`. uint256 private constant _NEW_OWNER_IS_ZERO_ADDRESS_ERROR_SELECTOR = 0x7448fbae; /// @dev `bytes4(keccak256(bytes("NoHandoverRequest()")))`. uint256 private constant _NO_HANDOVER_REQUEST_ERROR_SELECTOR = 0x6f5e8818; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* EVENTS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The ownership is transferred from `oldOwner` to `newOwner`. /// This event is intentionally kept the same as OpenZeppelin's Ownable to be /// compatible with indexers and [EIP-173](https://eips.ethereum.org/EIPS/eip-173), /// despite it not being as lightweight as a single argument event. event OwnershipTransferred(address indexed oldOwner, address indexed newOwner); /// @dev An ownership handover to `pendingOwner` has been requested. event OwnershipHandoverRequested(address indexed pendingOwner); /// @dev The ownership handover to `pendingOwner` has been cancelled. event OwnershipHandoverCanceled(address indexed pendingOwner); /// @dev The `user`'s roles is updated to `roles`. /// Each bit of `roles` represents whether the role is set. event RolesUpdated(address indexed user, uint256 indexed roles); /// @dev `keccak256(bytes("OwnershipTransferred(address,address)"))`. uint256 private constant _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE = 0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0; /// @dev `keccak256(bytes("OwnershipHandoverRequested(address)"))`. uint256 private constant _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE = 0xdbf36a107da19e49527a7176a1babf963b4b0ff8cde35ee35d6cd8f1f9ac7e1d; /// @dev `keccak256(bytes("OwnershipHandoverCanceled(address)"))`. uint256 private constant _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE = 0xfa7b8eab7da67f412cc9575ed43464468f9bfbae89d1675917346ca6d8fe3c92; /// @dev `keccak256(bytes("RolesUpdated(address,uint256)"))`. uint256 private constant _ROLES_UPDATED_EVENT_SIGNATURE = 0x715ad5ce61fc9595c7b415289d59cf203f23a94fa06f04af7e489a0a76e1fe26; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* STORAGE */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev The owner slot is given by: `not(_OWNER_SLOT_NOT)`. /// It is intentionally choosen to be a high value /// to avoid collision with lower slots. /// The choice of manual storage layout is to enable compatibility /// with both regular and upgradeable contracts. /// /// The role slot of `user` is given by: /// ``` /// mstore(0x00, or(shl(96, user), _OWNER_SLOT_NOT)) /// let roleSlot := keccak256(0x00, 0x20) /// ``` /// This automatically ignores the upper bits of the `user` in case /// they are not clean, as well as keep the `keccak256` under 32-bytes. uint256 private constant _OWNER_SLOT_NOT = 0x8b78c6d8; /// The ownership handover slot of `newOwner` is given by: /// ``` /// mstore(0x00, or(shl(96, user), _HANDOVER_SLOT_SEED)) /// let handoverSlot := keccak256(0x00, 0x20) /// ``` /// It stores the expiry timestamp of the two-step ownership handover. uint256 private constant _HANDOVER_SLOT_SEED = 0x389a75e1; /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* INTERNAL FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Initializes the owner directly without authorization guard. /// This function must be called upon initialization, /// regardless of whether the contract is upgradeable or not. /// This is to enable generalization to both regular and upgradeable contracts, /// and to save gas in case the initial owner is not the caller. /// For performance reasons, this function will not check if there /// is an existing owner. function _initializeOwner(address newOwner) internal virtual { assembly { // Clean the upper 96 bits. newOwner := shr(96, shl(96, newOwner)) // Store the new value. sstore(not(_OWNER_SLOT_NOT), newOwner) // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, 0, newOwner) } } /// @dev Sets the owner directly without authorization guard. function _setOwner(address newOwner) internal virtual { assembly { let ownerSlot := not(_OWNER_SLOT_NOT) // Clean the upper 96 bits. newOwner := shr(96, shl(96, newOwner)) // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, sload(ownerSlot), newOwner) // Store the new value. sstore(ownerSlot, newOwner) } } /// @dev Grants the roles directly without authorization guard. /// Each bit of `roles` represents the role to turn on. function _grantRoles(address user, uint256 roles) internal virtual { assembly { // Compute the role slot. mstore(0x00, or(shl(96, user), _OWNER_SLOT_NOT)) let roleSlot := keccak256(0x00, 0x20) // Load the current value and `or` it with `roles`. let newRoles := or(sload(roleSlot), roles) // Store the new value. sstore(roleSlot, newRoles) // Emit the {RolesUpdated} event. log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, shl(96, user)), newRoles) } } /// @dev Removes the roles directly without authorization guard. /// Each bit of `roles` represents the role to turn off. function _removeRoles(address user, uint256 roles) internal virtual { assembly { // Compute the role slot. mstore(0x00, or(shl(96, user), _OWNER_SLOT_NOT)) let roleSlot := keccak256(0x00, 0x20) // Load the current value. let currentRoles := sload(roleSlot) // Use `and` to compute the intersection of `currentRoles` and `roles`, // `xor` it with `currentRoles` to flip the bits in the intersection. let newRoles := xor(currentRoles, and(currentRoles, roles)) // Then, store the new value. sstore(roleSlot, newRoles) // Emit the {RolesUpdated} event. log3(0, 0, _ROLES_UPDATED_EVENT_SIGNATURE, shr(96, shl(96, user)), newRoles) } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* PUBLIC UPDATE FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Allows the owner to transfer the ownership to `newOwner`. function transferOwnership(address newOwner) public virtual onlyOwner { assembly { // Clean the upper 96 bits. newOwner := shr(96, shl(96, newOwner)) // Reverts if the `newOwner` is the zero address. if iszero(newOwner) { mstore(0x00, _NEW_OWNER_IS_ZERO_ADDRESS_ERROR_SELECTOR) revert(0x1c, 0x04) } // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, caller(), newOwner) // Store the new value. sstore(not(_OWNER_SLOT_NOT), newOwner) } } /// @dev Allows the owner to renounce their ownership. function renounceOwnership() public virtual onlyOwner { assembly { // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, caller(), 0) // Store the new value. sstore(not(_OWNER_SLOT_NOT), 0) } } /// @dev Request a two-step ownership handover to the caller. /// The request will be automatically expire in 48 hours (172800 seconds) by default. function requestOwnershipHandover() public virtual { unchecked { uint256 expires = block.timestamp + ownershipHandoverValidFor(); assembly { // Compute and set the handover slot to 1. mstore(0x00, or(shl(96, caller()), _HANDOVER_SLOT_SEED)) sstore(keccak256(0x00, 0x20), expires) // Emit the {OwnershipHandoverRequested} event. log2(0, 0, _OWNERSHIP_HANDOVER_REQUESTED_EVENT_SIGNATURE, caller()) } } } /// @dev Cancels the two-step ownership handover to the caller, if any. function cancelOwnershipHandover() public virtual { assembly { // Compute and set the handover slot to 0. mstore(0x00, or(shl(96, caller()), _HANDOVER_SLOT_SEED)) sstore(keccak256(0x00, 0x20), 0) // Emit the {OwnershipHandoverCanceled} event. log2(0, 0, _OWNERSHIP_HANDOVER_CANCELED_EVENT_SIGNATURE, caller()) } } /// @dev Allows the owner to complete the two-step ownership handover to `pendingOwner`. /// Reverts if there is no existing ownership handover requested by `pendingOwner`. function completeOwnershipHandover(address pendingOwner) public virtual onlyOwner { assembly { // Clean the upper 96 bits. pendingOwner := shr(96, shl(96, pendingOwner)) // Compute and set the handover slot to 0. mstore(0x00, or(shl(96, pendingOwner), _HANDOVER_SLOT_SEED)) let handoverSlot := keccak256(0x00, 0x20) // If the handover does not exist, or has expired. if gt(timestamp(), sload(handoverSlot)) { mstore(0x00, _NO_HANDOVER_REQUEST_ERROR_SELECTOR) revert(0x1c, 0x04) } // Set the handover slot to 0. sstore(handoverSlot, 0) // Emit the {OwnershipTransferred} event. log3(0, 0, _OWNERSHIP_TRANSFERRED_EVENT_SIGNATURE, caller(), pendingOwner) // Store the new value. sstore(not(_OWNER_SLOT_NOT), pendingOwner) } } /// @dev Allows the owner to grant `user` `roles`. /// If the `user` already has a role, then it will be an no-op for the role. function grantRoles(address user, uint256 roles) public virtual onlyOwner { _grantRoles(user, roles); } /// @dev Allows the owner to remove `user` `roles`. /// If the `user` does not have a role, then it will be an no-op for the role. function revokeRoles(address user, uint256 roles) public virtual onlyOwner { _removeRoles(user, roles); } /// @dev Allow the caller to remove their own roles. /// If the caller does not have a role, then it will be an no-op for the role. function renounceRoles(uint256 roles) public virtual { _removeRoles(msg.sender, roles); } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* PUBLIC READ FUNCTIONS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Returns the owner of the contract. function owner() public view virtual returns (address result) { assembly { result := sload(not(_OWNER_SLOT_NOT)) } } /// @dev Returns the expiry timestamp for the two-step ownership handover to `pendingOwner`. function ownershipHandoverExpiresAt(address pendingOwner) public view virtual returns (uint256 result) { assembly { // Compute the handover slot. mstore(0x00, or(shl(96, pendingOwner), _HANDOVER_SLOT_SEED)) // Load the handover slot. result := sload(keccak256(0x00, 0x20)) } } /// @dev Returns how long a two-step ownership handover is valid for in seconds. function ownershipHandoverValidFor() public view virtual returns (uint64) { return 48 * 3600; } /// @dev Returns whether `user` has any of `roles`. function hasAnyRole(address user, uint256 roles) public view virtual returns (bool result) { assembly { // Compute the role slot. mstore(0x00, or(shl(96, user), _OWNER_SLOT_NOT)) // Load the stored value, and set the result to whether the // `and` intersection of the value and `roles` is not zero. result := iszero(iszero(and(sload(keccak256(0x00, 0x20)), roles))) } } /// @dev Returns whether `user` has all of `roles`. function hasAllRoles(address user, uint256 roles) public view virtual returns (bool result) { assembly { // Compute the role slot. mstore(0x00, or(shl(96, user), _OWNER_SLOT_NOT)) // Whether the stored value is contains all the set bits in `roles`. result := eq(and(sload(keccak256(0x00, 0x20)), roles), roles) } } /// @dev Returns the roles of `user`. function rolesOf(address user) public view virtual returns (uint256 roles) { assembly { // Compute the role slot. mstore(0x00, or(shl(96, user), _OWNER_SLOT_NOT)) // Load the stored value. roles := sload(keccak256(0x00, 0x20)) } } /// @dev Convenience function to return a `roles` bitmap from the `ordinals`. /// This is meant for frontends like Etherscan, and is therefore not fully optimized. /// Not recommended to be called on-chain. function rolesFromOrdinals(uint8[] memory ordinals) public pure returns (uint256 roles) { assembly { // Skip the length slot. let o := add(ordinals, 0x20) // `shl` 5 is equivalent to multiplying by 0x20. let end := add(o, shl(5, mload(ordinals))) // prettier-ignore for {} iszero(eq(o, end)) { o := add(o, 0x20) } { roles := or(roles, shl(and(mload(o), 0xff), 1)) } } } /// @dev Convenience function to return a `roles` bitmap from the `ordinals`. /// This is meant for frontends like Etherscan, and is therefore not fully optimized. /// Not recommended to be called on-chain. function ordinalsFromRoles(uint256 roles) public pure returns (uint8[] memory ordinals) { assembly { // Grab the pointer to the free memory. let ptr := add(mload(0x40), 0x20) // The absence of lookup tables, De Bruijn, etc., here is intentional for // smaller bytecode, as this function is not meant to be called on-chain. // prettier-ignore for { let i := 0 } 1 { i := add(i, 1) } { mstore(ptr, i) // `shr` 5 is equivalent to multiplying by 0x20. // Push back into the ordinals array if the bit is set. ptr := add(ptr, shl(5, and(roles, 1))) roles := shr(1, roles) // prettier-ignore if iszero(roles) { break } } // Set `ordinals` to the start of the free memory. ordinals := mload(0x40) // Allocate the memory. mstore(0x40, ptr) // Store the length of `ordinals`. mstore(ordinals, shr(5, sub(ptr, add(ordinals, 0x20)))) } } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* MODIFIERS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ /// @dev Marks a function as only callable by the owner. modifier onlyOwner() virtual { assembly { // If the caller is not the stored owner, revert. if iszero(eq(caller(), sload(not(_OWNER_SLOT_NOT)))) { mstore(0x00, _UNAUTHORIZED_ERROR_SELECTOR) revert(0x1c, 0x04) } } _; } /// @dev Marks a function as only callable by an account with `roles`. modifier onlyRoles(uint256 roles) virtual { assembly { // Compute the role slot. mstore(0x00, or(shl(96, caller()), _OWNER_SLOT_NOT)) // Load the stored value, and if the `and` intersection // of the value and `roles` is zero, revert. if iszero(and(sload(keccak256(0x00, 0x20)), roles)) { mstore(0x00, _UNAUTHORIZED_ERROR_SELECTOR) revert(0x1c, 0x04) } } _; } /// @dev Marks a function as only callable by the owner or by an account /// with `roles`. Checks for ownership first, then lazily checks for roles. modifier onlyOwnerOrRoles(uint256 roles) virtual { assembly { // If the caller is not the stored owner. if iszero(eq(caller(), sload(not(_OWNER_SLOT_NOT)))) { // Compute the role slot. mstore(0x00, or(shl(96, caller()), _OWNER_SLOT_NOT)) // Load the stored value, and if the `and` intersection // of the value and `roles` is zero, revert. if iszero(and(sload(keccak256(0x00, 0x20)), roles)) { mstore(0x00, _UNAUTHORIZED_ERROR_SELECTOR) revert(0x1c, 0x04) } } } _; } /// @dev Marks a function as only callable by an account with `roles` /// or the owner. Checks for roles first, then lazily checks for ownership. modifier onlyRolesOrOwner(uint256 roles) virtual { assembly { // Compute the role slot. mstore(0x00, or(shl(96, caller()), _OWNER_SLOT_NOT)) // Load the stored value, and if the `and` intersection // of the value and `roles` is zero, revert. if iszero(and(sload(keccak256(0x00, 0x20)), roles)) { // If the caller is not the stored owner. if iszero(eq(caller(), sload(not(_OWNER_SLOT_NOT)))) { mstore(0x00, _UNAUTHORIZED_ERROR_SELECTOR) revert(0x1c, 0x04) } } } _; } /*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/ /* ROLE CONSTANTS */ /*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/ // IYKYK uint256 internal constant _ROLE_0 = 1 << 0; uint256 internal constant _ROLE_1 = 1 << 1; uint256 internal constant _ROLE_2 = 1 << 2; uint256 internal constant _ROLE_3 = 1 << 3; uint256 internal constant _ROLE_4 = 1 << 4; uint256 internal constant _ROLE_5 = 1 << 5; uint256 internal constant _ROLE_6 = 1 << 6; uint256 internal constant _ROLE_7 = 1 << 7; uint256 internal constant _ROLE_8 = 1 << 8; uint256 internal constant _ROLE_9 = 1 << 9; uint256 internal constant _ROLE_10 = 1 << 10; uint256 internal constant _ROLE_11 = 1 << 11; uint256 internal constant _ROLE_12 = 1 << 12; uint256 internal constant _ROLE_13 = 1 << 13; uint256 internal constant _ROLE_14 = 1 << 14; uint256 internal constant _ROLE_15 = 1 << 15; uint256 internal constant _ROLE_16 = 1 << 16; uint256 internal constant _ROLE_17 = 1 << 17; uint256 internal constant _ROLE_18 = 1 << 18; uint256 internal constant _ROLE_19 = 1 << 19; uint256 internal constant _ROLE_20 = 1 << 20; uint256 internal constant _ROLE_21 = 1 << 21; uint256 internal constant _ROLE_22 = 1 << 22; uint256 internal constant _ROLE_23 = 1 << 23; uint256 internal constant _ROLE_24 = 1 << 24; uint256 internal constant _ROLE_25 = 1 << 25; uint256 internal constant _ROLE_26 = 1 << 26; uint256 internal constant _ROLE_27 = 1 << 27; uint256 internal constant _ROLE_28 = 1 << 28; uint256 internal constant _ROLE_29 = 1 << 29; uint256 internal constant _ROLE_30 = 1 << 30; uint256 internal constant _ROLE_31 = 1 << 31; uint256 internal constant _ROLE_32 = 1 << 32; uint256 internal constant _ROLE_33 = 1 << 33; uint256 internal constant _ROLE_34 = 1 << 34; uint256 internal constant _ROLE_35 = 1 << 35; uint256 internal constant _ROLE_36 = 1 << 36; uint256 internal constant _ROLE_37 = 1 << 37; uint256 internal constant _ROLE_38 = 1 << 38; uint256 internal constant _ROLE_39 = 1 << 39; uint256 internal constant _ROLE_40 = 1 << 40; uint256 internal constant _ROLE_41 = 1 << 41; uint256 internal constant _ROLE_42 = 1 << 42; uint256 internal constant _ROLE_43 = 1 << 43; uint256 internal constant _ROLE_44 = 1 << 44; uint256 internal constant _ROLE_45 = 1 << 45; uint256 internal constant _ROLE_46 = 1 << 46; uint256 internal constant _ROLE_47 = 1 << 47; uint256 internal constant _ROLE_48 = 1 << 48; uint256 internal constant _ROLE_49 = 1 << 49; uint256 internal constant _ROLE_50 = 1 << 50; uint256 internal constant _ROLE_51 = 1 << 51; uint256 internal constant _ROLE_52 = 1 << 52; uint256 internal constant _ROLE_53 = 1 << 53; uint256 internal constant _ROLE_54 = 1 << 54; uint256 internal constant _ROLE_55 = 1 << 55; uint256 internal constant _ROLE_56 = 1 << 56; uint256 internal constant _ROLE_57 = 1 << 57; uint256 internal constant _ROLE_58 = 1 << 58; uint256 internal constant _ROLE_59 = 1 << 59; uint256 internal constant _ROLE_60 = 1 << 60; uint256 internal constant _ROLE_61 = 1 << 61; uint256 internal constant _ROLE_62 = 1 << 62; uint256 internal constant _ROLE_63 = 1 << 63; uint256 internal constant _ROLE_64 = 1 << 64; uint256 internal constant _ROLE_65 = 1 << 65; uint256 internal constant _ROLE_66 = 1 << 66; uint256 internal constant _ROLE_67 = 1 << 67; uint256 internal constant _ROLE_68 = 1 << 68; uint256 internal constant _ROLE_69 = 1 << 69; uint256 internal constant _ROLE_70 = 1 << 70; uint256 internal constant _ROLE_71 = 1 << 71; uint256 internal constant _ROLE_72 = 1 << 72; uint256 internal constant _ROLE_73 = 1 << 73; uint256 internal constant _ROLE_74 = 1 << 74; uint256 internal constant _ROLE_75 = 1 << 75; uint256 internal constant _ROLE_76 = 1 << 76; uint256 internal constant _ROLE_77 = 1 << 77; uint256 internal constant _ROLE_78 = 1 << 78; uint256 internal constant _ROLE_79 = 1 << 79; uint256 internal constant _ROLE_80 = 1 << 80; uint256 internal constant _ROLE_81 = 1 << 81; uint256 internal constant _ROLE_82 = 1 << 82; uint256 internal constant _ROLE_83 = 1 << 83; uint256 internal constant _ROLE_84 = 1 << 84; uint256 internal constant _ROLE_85 = 1 << 85; uint256 internal constant _ROLE_86 = 1 << 86; uint256 internal constant _ROLE_87 = 1 << 87; uint256 internal constant _ROLE_88 = 1 << 88; uint256 internal constant _ROLE_89 = 1 << 89; uint256 internal constant _ROLE_90 = 1 << 90; uint256 internal constant _ROLE_91 = 1 << 91; uint256 internal constant _ROLE_92 = 1 << 92; uint256 internal constant _ROLE_93 = 1 << 93; uint256 internal constant _ROLE_94 = 1 << 94; uint256 internal constant _ROLE_95 = 1 << 95; uint256 internal constant _ROLE_96 = 1 << 96; uint256 internal constant _ROLE_97 = 1 << 97; uint256 internal constant _ROLE_98 = 1 << 98; uint256 internal constant _ROLE_99 = 1 << 99; uint256 internal constant _ROLE_100 = 1 << 100; uint256 internal constant _ROLE_101 = 1 << 101; uint256 internal constant _ROLE_102 = 1 << 102; uint256 internal constant _ROLE_103 = 1 << 103; uint256 internal constant _ROLE_104 = 1 << 104; uint256 internal constant _ROLE_105 = 1 << 105; uint256 internal constant _ROLE_106 = 1 << 106; uint256 internal constant _ROLE_107 = 1 << 107; uint256 internal constant _ROLE_108 = 1 << 108; uint256 internal constant _ROLE_109 = 1 << 109; uint256 internal constant _ROLE_110 = 1 << 110; uint256 internal constant _ROLE_111 = 1 << 111; uint256 internal constant _ROLE_112 = 1 << 112; uint256 internal constant _ROLE_113 = 1 << 113; uint256 internal constant _ROLE_114 = 1 << 114; uint256 internal constant _ROLE_115 = 1 << 115; uint256 internal constant _ROLE_116 = 1 << 116; uint256 internal constant _ROLE_117 = 1 << 117; uint256 internal constant _ROLE_118 = 1 << 118; uint256 internal constant _ROLE_119 = 1 << 119; uint256 internal constant _ROLE_120 = 1 << 120; uint256 internal constant _ROLE_121 = 1 << 121; uint256 internal constant _ROLE_122 = 1 << 122; uint256 internal constant _ROLE_123 = 1 << 123; uint256 internal constant _ROLE_124 = 1 << 124; uint256 internal constant _ROLE_125 = 1 << 125; uint256 internal constant _ROLE_126 = 1 << 126; uint256 internal constant _ROLE_127 = 1 << 127; uint256 internal constant _ROLE_128 = 1 << 128; uint256 internal constant _ROLE_129 = 1 << 129; uint256 internal constant _ROLE_130 = 1 << 130; uint256 internal constant _ROLE_131 = 1 << 131; uint256 internal constant _ROLE_132 = 1 << 132; uint256 internal constant _ROLE_133 = 1 << 133; uint256 internal constant _ROLE_134 = 1 << 134; uint256 internal constant _ROLE_135 = 1 << 135; uint256 internal constant _ROLE_136 = 1 << 136; uint256 internal constant _ROLE_137 = 1 << 137; uint256 internal constant _ROLE_138 = 1 << 138; uint256 internal constant _ROLE_139 = 1 << 139; uint256 internal constant _ROLE_140 = 1 << 140; uint256 internal constant _ROLE_141 = 1 << 141; uint256 internal constant _ROLE_142 = 1 << 142; uint256 internal constant _ROLE_143 = 1 << 143; uint256 internal constant _ROLE_144 = 1 << 144; uint256 internal constant _ROLE_145 = 1 << 145; uint256 internal constant _ROLE_146 = 1 << 146; uint256 internal constant _ROLE_147 = 1 << 147; uint256 internal constant _ROLE_148 = 1 << 148; uint256 internal constant _ROLE_149 = 1 << 149; uint256 internal constant _ROLE_150 = 1 << 150; uint256 internal constant _ROLE_151 = 1 << 151; uint256 internal constant _ROLE_152 = 1 << 152; uint256 internal constant _ROLE_153 = 1 << 153; uint256 internal constant _ROLE_154 = 1 << 154; uint256 internal constant _ROLE_155 = 1 << 155; uint256 internal constant _ROLE_156 = 1 << 156; uint256 internal constant _ROLE_157 = 1 << 157; uint256 internal constant _ROLE_158 = 1 << 158; uint256 internal constant _ROLE_159 = 1 << 159; uint256 internal constant _ROLE_160 = 1 << 160; uint256 internal constant _ROLE_161 = 1 << 161; uint256 internal constant _ROLE_162 = 1 << 162; uint256 internal constant _ROLE_163 = 1 << 163; uint256 internal constant _ROLE_164 = 1 << 164; uint256 internal constant _ROLE_165 = 1 << 165; uint256 internal constant _ROLE_166 = 1 << 166; uint256 internal constant _ROLE_167 = 1 << 167; uint256 internal constant _ROLE_168 = 1 << 168; uint256 internal constant _ROLE_169 = 1 << 169; uint256 internal constant _ROLE_170 = 1 << 170; uint256 internal constant _ROLE_171 = 1 << 171; uint256 internal constant _ROLE_172 = 1 << 172; uint256 internal constant _ROLE_173 = 1 << 173; uint256 internal constant _ROLE_174 = 1 << 174; uint256 internal constant _ROLE_175 = 1 << 175; uint256 internal constant _ROLE_176 = 1 << 176; uint256 internal constant _ROLE_177 = 1 << 177; uint256 internal constant _ROLE_178 = 1 << 178; uint256 internal constant _ROLE_179 = 1 << 179; uint256 internal constant _ROLE_180 = 1 << 180; uint256 internal constant _ROLE_181 = 1 << 181; uint256 internal constant _ROLE_182 = 1 << 182; uint256 internal constant _ROLE_183 = 1 << 183; uint256 internal constant _ROLE_184 = 1 << 184; uint256 internal constant _ROLE_185 = 1 << 185; uint256 internal constant _ROLE_186 = 1 << 186; uint256 internal constant _ROLE_187 = 1 << 187; uint256 internal constant _ROLE_188 = 1 << 188; uint256 internal constant _ROLE_189 = 1 << 189; uint256 internal constant _ROLE_190 = 1 << 190; uint256 internal constant _ROLE_191 = 1 << 191; uint256 internal constant _ROLE_192 = 1 << 192; uint256 internal constant _ROLE_193 = 1 << 193; uint256 internal constant _ROLE_194 = 1 << 194; uint256 internal constant _ROLE_195 = 1 << 195; uint256 internal constant _ROLE_196 = 1 << 196; uint256 internal constant _ROLE_197 = 1 << 197; uint256 internal constant _ROLE_198 = 1 << 198; uint256 internal constant _ROLE_199 = 1 << 199; uint256 internal constant _ROLE_200 = 1 << 200; uint256 internal constant _ROLE_201 = 1 << 201; uint256 internal constant _ROLE_202 = 1 << 202; uint256 internal constant _ROLE_203 = 1 << 203; uint256 internal constant _ROLE_204 = 1 << 204; uint256 internal constant _ROLE_205 = 1 << 205; uint256 internal constant _ROLE_206 = 1 << 206; uint256 internal constant _ROLE_207 = 1 << 207; uint256 internal constant _ROLE_208 = 1 << 208; uint256 internal constant _ROLE_209 = 1 << 209; uint256 internal constant _ROLE_210 = 1 << 210; uint256 internal constant _ROLE_211 = 1 << 211; uint256 internal constant _ROLE_212 = 1 << 212; uint256 internal constant _ROLE_213 = 1 << 213; uint256 internal constant _ROLE_214 = 1 << 214; uint256 internal constant _ROLE_215 = 1 << 215; uint256 internal constant _ROLE_216 = 1 << 216; uint256 internal constant _ROLE_217 = 1 << 217; uint256 internal constant _ROLE_218 = 1 << 218; uint256 internal constant _ROLE_219 = 1 << 219; uint256 internal constant _ROLE_220 = 1 << 220; uint256 internal constant _ROLE_221 = 1 << 221; uint256 internal constant _ROLE_222 = 1 << 222; uint256 internal constant _ROLE_223 = 1 << 223; uint256 internal constant _ROLE_224 = 1 << 224; uint256 internal constant _ROLE_225 = 1 << 225; uint256 internal constant _ROLE_226 = 1 << 226; uint256 internal constant _ROLE_227 = 1 << 227; uint256 internal constant _ROLE_228 = 1 << 228; uint256 internal constant _ROLE_229 = 1 << 229; uint256 internal constant _ROLE_230 = 1 << 230; uint256 internal constant _ROLE_231 = 1 << 231; uint256 internal constant _ROLE_232 = 1 << 232; uint256 internal constant _ROLE_233 = 1 << 233; uint256 internal constant _ROLE_234 = 1 << 234; uint256 internal constant _ROLE_235 = 1 << 235; uint256 internal constant _ROLE_236 = 1 << 236; uint256 internal constant _ROLE_237 = 1 << 237; uint256 internal constant _ROLE_238 = 1 << 238; uint256 internal constant _ROLE_239 = 1 << 239; uint256 internal constant _ROLE_240 = 1 << 240; uint256 internal constant _ROLE_241 = 1 << 241; uint256 internal constant _ROLE_242 = 1 << 242; uint256 internal constant _ROLE_243 = 1 << 243; uint256 internal constant _ROLE_244 = 1 << 244; uint256 internal constant _ROLE_245 = 1 << 245; uint256 internal constant _ROLE_246 = 1 << 246; uint256 internal constant _ROLE_247 = 1 << 247; uint256 internal constant _ROLE_248 = 1 << 248; uint256 internal constant _ROLE_249 = 1 << 249; uint256 internal constant _ROLE_250 = 1 << 250; uint256 internal constant _ROLE_251 = 1 << 251; uint256 internal constant _ROLE_252 = 1 << 252; uint256 internal constant _ROLE_253 = 1 << 253; uint256 internal constant _ROLE_254 = 1 << 254; uint256 internal constant _ROLE_255 = 1 << 255; }
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OVERVIEW
Joshua Collection is the first digital collectibles of Joshua Blue. Each NFTs can be exchanged to the physical “Tobeyaki pottery”, a limited to 10 pieces created by Yoshito Takenishi using traditional craft artwork.[OFFICIAL DOCUMENT](https://www.joshua-collection.com)Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 100.00% | $2,626.93 | 0.3 | $788.08 |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.