ERC-721
Overview
Max Total Supply
671 GAMEONCLOUDBASENFTSONCHAINSUMMER
Holders
667
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 GAMEONCLOUDBASENFTSONCHAINSUMMERLoading...
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Minimal Proxy Contract for 0xb01db992bfa6f7ec5aa15c93e9e0ab1077010594
Contract Name:
WritingEditions
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; /// > [[[[[[[[[[[ Imports ]]]]]]]]]]] import "./interface/IWritingEditions.sol"; import "./interface/IWritingEditionsFactory.sol"; import "../observability/interface/IObservability.sol"; import "../fee-configuration/interface/IFeeConfiguration.sol"; import "../renderer/interface/IRenderer.sol"; import "../treasury/interface/ITreasuryConfiguration.sol"; import "../treasury/interface/ITreasury.sol"; import "../treasury/interface/ITributaryRegistry.sol"; import "../lib/Ownable.sol"; import "../lib/ERC721/ERC721.sol"; import "../lib/ERC165/ERC165.sol"; import "../lib/ERC721/interface/IERC721.sol"; import "../lib/ERC2981/interface/IERC2981.sol"; import "../lib/transaction-reentrancy-guard/TransactionReentrancyGuard.sol"; /// > [[[[[[[[[[[ External Library Imports ]]]]]]]]]]] import "openzeppelin-contracts/contracts/security/ReentrancyGuard.sol"; import "openzeppelin-contracts/contracts/utils/Base64.sol"; import "openzeppelin-contracts/contracts/utils/Strings.sol"; /** * @title WritingEditions * @author MirrorXYZ * @custom:security-contact [email protected] */ contract WritingEditions is Ownable, TransactionReentrancyGuard, ReentrancyGuard, ERC721, IERC721Metadata, IERC2981, IWritingEditions, IWritingEditionEvents, IObservabilityEvents { /// > [[[[[[[[[[[ Version ]]]]]]]]]]] /// @notice Version. uint8 public immutable override VERSION = 200; /// > [[[[[[[[[[[ Authorization ]]]]]]]]]]] /// @notice Address that deploys and initializes clones. address public immutable override factory; /// > [[[[[[[[[[[ Configuration ]]]]]]]]]]] /// @notice Address for Mirror treasury configuration. address public immutable override treasuryConfiguration; /// @notice Address for Mirror's observability contract. address public immutable override o11y; /// > [[[[[[[[[[[ ERC721 Metadata ]]]]]]]]]]] /// @notice Token name. string public override name; /// @notice Token symbol. string public override symbol; /// @notice Base URI for description. string internal _baseDescriptionURI; /// > [[[[[[[[[[[ Token Data ]]]]]]]]]]] /// @notice Total supply of editions. Used to calculate next tokenId. uint256 public override totalSupply; /// @notice Token text content, stored in Arweave. string public override contentURI; /// @notice Token image content, stored in IPFS. string public override imageURI; /// @notice Token price, set by the owner. uint256 public override price; /// @notice Token limit, set by the owner. uint256 public override limit; /// @notice Account that will receive funds from sales. address public override fundingRecipient; /// > [[[[[[[[[[[ Royalty Info (ERC2981) ]]]]]]]]]]] /// @notice Account that will receive royalties. address public override royaltyRecipient; /// @notice Royalty basis points. uint256 public override royaltyBPS; /// > [[[[[[[[[[[ Rendering ]]]]]]]]]]] /// @notice Address for a rendering contract, if set, calls to /// `tokenURI(uint256)` are forwarded to this address. address public override renderer; /// > [[[[[[[[[[[ Constructor ]]]]]]]]]]] /// @notice Implementation logic for clones. /// @param _factory the factory contract deploying clones with this implementation. /// @param _treasuryConfiguration Mirror treasury configuration. /// @param _o11y contract for observability. constructor( address _factory, address _treasuryConfiguration, address _o11y ) Ownable(address(0)) TransactionReentrancyGuard(true) { // Assert not the zero-address. require(_factory != address(0), "must set factory"); // Store factory. factory = _factory; // Assert not the zero-address. require( _treasuryConfiguration != address(0), "must set treasury configuration" ); // Store treasury configuration. treasuryConfiguration = _treasuryConfiguration; // Assert not the zero-address. require(_o11y != address(0), "must set observability"); // Store observability. o11y = _o11y; } /// > [[[[[[[[[[[ Initializing ]]]]]]]]]]] /// @notice Initialize a clone by storing edition parameters. Called only /// by the factory. Mints the first edition to `tokenRecipient`. /// @param _owner owner of the clone. /// @param edition edition parameters used to deploy the clone. /// @param tokenRecipient account that will receive the first minted token. /// @param message message sent with the token purchase, not stored. function initialize( address _owner, WritingEdition memory edition, address tokenRecipient, string memory message, bool _guardOn ) external payable override nonReentrant { // Only factory can call this function. require(msg.sender == factory, "unauthorized caller"); // Store ERC721 metadata. name = edition.name; symbol = edition.symbol; // Store edition data. imageURI = edition.imageURI; contentURI = edition.contentURI; price = edition.price; limit = edition.limit; fundingRecipient = edition.fundingRecipient; renderer = edition.renderer; // Store owner. _setInitialOwner(_owner); // Store guard status. _setGuard(_guardOn); // Mint initial token to recipient if (tokenRecipient != address(0)) { _purchase(tokenRecipient, message); } } /// @notice Base description URI. function baseDescriptionURI() external view override returns (string memory) { return _getBaseDescriptionURI(); } /// @notice Token description. function description() public view override returns (string memory) { return string( abi.encodePacked( _getBaseDescriptionURI(), Strings.toString(block.chainid), "/", _addressToString(address(this)) ) ); } /// > [[[[[[[[[[[ View Functions ]]]]]]]]]]] /// @notice Helper function to get owners for a list of tokenIds. /// @dev Could revert if `tokenIds` is too long. /// @param tokenIds a list of token-ids to check ownership of. /// @return owners a list of token-id owners, address(0) if token is not minted function ownerOf( uint256[] memory tokenIds ) external view override returns (address[] memory owners) { owners = new address[](tokenIds.length); for (uint256 i = 0; i < tokenIds.length; i++) { owners[i] = _owners[tokenIds[i]]; } } /// > [[[[[[[[[[[ Funding Recipient ]]]]]]]]]]] /// @notice Set a new funding recipient. /// @param _fundingRecipient new funding recipient. function setFundingRecipient( address _fundingRecipient ) external override onlyOwner { // slither-disable-next-line reentrancy-no-eth IObservability(o11y).emitFundingRecipientSet( // oldFundingRecipient fundingRecipient, // newFundingRecipient _fundingRecipient ); fundingRecipient = _fundingRecipient; } /// > [[[[[[[[[[[ Price ]]]]]]]]]]] /// @notice Set a new price. /// @param _price new price. function setPrice(uint256 _price) external override onlyOwner { // slither-disable-next-line reentrancy-no-eth IObservability(o11y).emitPriceSet( // oldPrice price, // newPrice _price ); price = _price; } /// @notice Set a new base description URI. /// @param newBaseDescriptionURI new base description URI function setBaseDescriptionURI( string memory newBaseDescriptionURI ) external override onlyOwner { // slither-disable-next-line reentrancy-no-eth IObservability(o11y).emitBaseDescriptionURISet( // oldDescriptionURI _getBaseDescriptionURI(), // oldDescriptionURI newBaseDescriptionURI ); _baseDescriptionURI = newBaseDescriptionURI; } /// @notice Turn Transaction Level Reentrancy Guard on/off. function toggleGuard() external override onlyOwner { _toggleGuard(); } /// > [[[[[[[[[[[ Purchase ]]]]]]]]]]] /// @notice Purchase a token. /// @param tokenRecipient the account to receive the token. /// @param message an optional message during purchase, not stored. /// @return tokenId the id of the minted token. function purchase( address tokenRecipient, string memory message ) external payable override guard nonReentrant returns (uint256 tokenId) { return _purchase(tokenRecipient, message); } /// > [[[[[[[[[[[ Mint ]]]]]]]]]]] /// @notice Mint an edition /// @dev throws if called by a non-owner /// @param tokenRecipient the account to receive the edition function mint( address tokenRecipient ) external override onlyOwner returns (uint256 tokenId) { tokenId = _getTokenIdAndMint(tokenRecipient); } /// > [[[[[[[[[[[ Limit ]]]]]]]]]]] /// @notice Allows the owner to set a global limit on the total supply /// @dev throws if attempting to increase the limit /// @param newLimit new mint limit. function setLimit(uint256 newLimit) external override onlyOwner { // Enforce that the limit should only ever decrease once set. require( newLimit >= totalSupply && (limit == 0 || newLimit < limit), "limit must be < than current limit" ); // Announce the change in limit. // slither-disable-next-line reentrancy-no-eth IObservability(o11y).emitWritingEditionLimitSet( // oldLimit limit, // newLimit newLimit ); // Update the limit. limit = newLimit; } /// @notice Set the limit to the last minted tokenId. function setMaxLimit() external override onlyOwner { // Announce the change in limit. // slither-disable-next-line reentrancy-no-eth IObservability(o11y).emitWritingEditionLimitSet( // oldLimit limit, // newLimit totalSupply ); // Update the limit. limit = totalSupply; } /// > [[[[[[[[[[[ ERC2981 Methods ]]]]]]]]]]] /// @notice Called with the sale price to determine how much royalty // is owed and to whom /// @param _tokenId - the NFT asset queried for royalty information /// @param _salePrice - the sale price of the NFT asset specified by _tokenId /// @return receiver - address of who should be sent the royalty payment /// @return royaltyAmount - the royalty payment amount for _salePrice function royaltyInfo( uint256 _tokenId, uint256 _salePrice ) external view override returns (address receiver, uint256 royaltyAmount) { receiver = royaltyRecipient; royaltyAmount = (_salePrice * royaltyBPS) / 10_000; } /// @notice Get royalties information. /// @param royaltyRecipient_ the address that will receive royalties /// @param royaltyBPS_ the royalty amount in basis points (bps) function setRoyaltyInfo( address royaltyRecipient_, uint256 royaltyBPS_ ) external override onlyOwner { require( royaltyBPS_ <= 10_000, "bps must be less than or equal to 10,000" ); // slither-disable-next-line reentrancy-no-eth IObservability(o11y).emitRoyaltyChange( // oldRoyaltyRecipient royaltyRecipient, // oldRoyaltyBPS royaltyBPS, // newRoyaltyRecipient royaltyRecipient_, // newRoyaltyBPS royaltyBPS_ ); royaltyRecipient = royaltyRecipient_; royaltyBPS = royaltyBPS_; } /// > [[[[[[[[[[[ Rendering Methods ]]]]]]]]]]] /// @notice Set the renderer address /// @dev Throws if renderer is not the zero address /// @param _renderer contract responsible for rendering tokens. function setRenderer(address _renderer) external override onlyOwner { require(renderer == address(0), "renderer already set"); renderer = _renderer; IObservability(o11y).emitRendererSet( // renderer _renderer ); } /// @notice Get contract metadata /// @dev If a renderer is set, attempt return the renderer's metadata. function contractURI() external view override returns (string memory) { if (renderer != address(0)) { // slither-disable-next-line unused-return try IRenderer(renderer).contractURI() returns ( // slither-disable-next-line uninitialized-local string memory result ) { return result; } catch { // Fallback if the renderer does not implement contractURI return _generateContractURI(); } } return _generateContractURI(); } /// @notice Get `tokenId` URI or data /// @dev If a renderer is set, call renderer's tokenURI /// @param tokenId The tokenId used to request data function tokenURI( uint256 tokenId ) external view override returns (string memory) { require(_exists(tokenId), "ERC721: query for nonexistent token"); if (renderer != address(0)) { return IRenderer(renderer).tokenURI(tokenId); } // slither-disable-next-line uninitialized-local bytes memory editionNumber; if (limit != 0) { editionNumber = abi.encodePacked("/", Strings.toString(limit)); } string memory json = Base64.encode( bytes( string( abi.encodePacked( '{"name": "', _escapeQuotes(name), " ", Strings.toString(tokenId), editionNumber, '", "description": "', _escapeQuotes(description()), '", "content": "ar://', contentURI, '", "image": "ipfs://', imageURI, '", "attributes":[{ "trait_type": "Serial", "value": ', Strings.toString(tokenId), "}] }" ) ) ) ); return string(abi.encodePacked("data:application/json;base64,", json)); } /// > [[[[[[[[[[[ IERC165 Method ]]]]]]]]]]] /// @param interfaceId The interface identifier, as specified in ERC-165 function supportsInterface( bytes4 interfaceId ) public pure override returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || interfaceId == type(IERC165).interfaceId || interfaceId == type(IERC2981).interfaceId; } /// > [[[[[[[[[[[ Internal Functions ]]]]]]]]]]] function _generateContractURI() internal view returns (string memory) { string memory json = Base64.encode( bytes( string( abi.encodePacked( '{"name": "', _escapeQuotes(name), '", "description": "', _escapeQuotes(description()), '", "content": "ar://', contentURI, '", "image": "ipfs://', imageURI, '", "seller_fee_basis_points": ', Strings.toString(royaltyBPS), ', "fee_recipient": "', _addressToString(royaltyRecipient), '", "external_link": "', _getBaseDescriptionURI(), '"}' ) ) ) ); return string(abi.encodePacked("data:application/json;base64,", json)); } /// @dev Emit a transfer event from observability contract. function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { IObservability(o11y).emitTransferEvent(from, to, tokenId); } function _purchase( address tokenRecipient, string memory message ) internal returns (uint256 tokenId) { // Mint token, and get a tokenId. tokenId = _getTokenIdAndMint(tokenRecipient); // Get fee. uint256 flatFeeAmount = 0; address feeConfiguration = _getFeeConfiguration(); if ( feeConfiguration != address(0) && IFeeConfiguration(feeConfiguration).flatFeeOn() ) { // Calculate the fee on the current balance flatFeeAmount = IFeeConfiguration(feeConfiguration).flatFeeAmount(); } // Emit event through observability contract. IObservability(o11y).emitWritingEditionPurchased( // tokenId tokenId, // recipient tokenRecipient, // price price, // message message, // flatFeeAmount flatFeeAmount ); _withdraw(fundingRecipient, msg.value, flatFeeAmount); } function _getFeeConfiguration() internal returns (address) { return ITreasuryConfiguration(treasuryConfiguration).feeConfiguration(); } function _getTributaryRegistry() internal returns (address) { return ITreasuryConfiguration(treasuryConfiguration).tributaryRegistry(); } /// @dev Withdraws `amount` to `fundsRecipient`. Sends fee to treasury // if fees are on. function _withdraw( address fundsRecipient, uint256 amount, uint256 flatFeeAmount ) internal { // If the fee is not zero, attempt to send it to the treasury. // If the treasury is not set, do not pay the fee. address treasury = ITreasuryConfiguration(treasuryConfiguration) .treasury(); if (flatFeeAmount != 0 && treasury != address(0)) { require(amount == price + flatFeeAmount, "invalid amount"); _sendEther(payable(treasury), flatFeeAmount); // Transfer the remaining amount to the recipient. _sendEther(payable(fundsRecipient), price); } else { require(amount == price, "invalid amount"); _sendEther(payable(fundsRecipient), amount); } } function _sendEther(address payable recipient, uint256 amount) internal { // Ensure sufficient balance. require(address(this).balance >= amount, "insufficient balance"); // Send the value. // slither-disable-next-line low-level-calls (bool success, ) = recipient.call{value: amount, gas: gasleft()}(""); require(success, "recipient reverted"); } /// @dev Mints and returns tokenId function _getTokenIdAndMint( address tokenRecipient ) internal returns (uint256 tokenId) { // Increment totalSupply to get next id and store tokenId. tokenId = ++totalSupply; // check that there are still tokens available to purchase // zero and max uint256 represent infinite minting require( limit == 0 || limit == type(uint256).max || tokenId < limit + 1, "sold out" ); // mint a new token for the tokenRecipient, using the `tokenId`. _mint(tokenRecipient, tokenId); } function _getBaseDescriptionURI() internal view returns (string memory) { return bytes(_baseDescriptionURI).length == 0 ? IWritingEditionsFactory(factory).baseDescriptionURI() : _baseDescriptionURI; } // https://ethereum.stackexchange.com/questions/8346/convert-address-to-string/8447#8447 function _addressToString(address x) internal pure returns (string memory) { bytes memory s = new bytes(40); for (uint256 i = 0; i < 20; i++) { bytes1 b = bytes1( uint8(uint256(uint160(x)) / (2 ** (8 * (19 - i)))) ); bytes1 hi = bytes1(uint8(b) / 16); bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi)); s[2 * i] = _char(hi); s[2 * i + 1] = _char(lo); } return string(abi.encodePacked("0x", s)); } function _char(bytes1 b) internal pure returns (bytes1 c) { if (uint8(b) < 10) return bytes1(uint8(b) + 0x30); else return bytes1(uint8(b) + 0x57); } function _escapeQuotes( string memory str ) internal pure returns (string memory) { bytes memory strBytes = bytes(str); uint8 quotesCount = 0; for (uint8 i = 0; i < strBytes.length; i++) { if (strBytes[i] == '"') { quotesCount++; } } if (quotesCount > 0) { bytes memory escapedBytes = new bytes( strBytes.length + (quotesCount) ); uint256 index; for (uint8 i = 0; i < strBytes.length; i++) { if (strBytes[i] == '"') { escapedBytes[index++] = "\\"; } escapedBytes[index++] = strBytes[i]; } return string(escapedBytes); } return str; } }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IWritingEditionEvents { event RoyaltyChange( address indexed oldRoyaltyRecipient, uint256 oldRoyaltyBPS, address indexed newRoyaltyRecipient, uint256 newRoyaltyBPS ); event RendererSet(address indexed renderer); event WritingEditionLimitSet(uint256 oldLimit, uint256 newLimit); event PriceSet(uint256 price); } interface IWritingEditions { struct WritingEdition { string name; string symbol; string description; string imageURI; string contentURI; uint256 price; uint256 limit; address fundingRecipient; address renderer; uint256 nonce; } function VERSION() external view returns (uint8); function factory() external returns (address); function treasuryConfiguration() external returns (address); function o11y() external returns (address); function baseDescriptionURI() external view returns (string memory); function description() external view returns (string memory); function totalSupply() external view returns (uint256); function price() external view returns (uint256); function limit() external view returns (uint256); function contentURI() external view returns (string memory); function imageURI() external view returns (string memory); function fundingRecipient() external returns (address); function royaltyRecipient() external returns (address); function royaltyBPS() external returns (uint256); function renderer() external view returns (address); function ownerOf( uint256[] memory tokenIds ) external view returns (address[] memory owners); function initialize( address owner_, WritingEdition memory edition, address recipient, string memory message, bool _guard ) external payable; function setFundingRecipient(address fundingRecipient_) external; function setPrice(uint256 price_) external; function setBaseDescriptionURI(string memory _baseDescriptionURI) external; function setLimit(uint256 limit_) external; function setMaxLimit() external; function setRoyaltyInfo( address royaltyRecipient_, uint256 royaltyPercentage_ ) external; function toggleGuard() external; function purchase( address tokenRecipient, string memory message ) external payable returns (uint256 tokenId); function mint(address tokenRecipient) external returns (uint256 tokenId); function setRenderer(address renderer_) external; function contractURI() external view returns (string memory); }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; /// > [[[[[[[[[[[ Imports ]]]]]]]]]]] import "./IWritingEditions.sol"; interface IWritingEditionsFactoryEvents { event NewImplementation( address indexed oldImplementation, address indexed newImplementation ); event EditionsDeployed( address indexed owner, address indexed clone, address indexed implementation ); } interface IWritingEditionsFactory { function VERSION() external view returns (uint8); function implementation() external view returns (address); function o11y() external view returns (address); function treasuryConfiguration() external view returns (address); function guardOn() external view returns (bool); function salts(bytes32 salt) external view returns (bool); function maxLimit() external view returns (uint256); function DOMAIN_SEPARATOR() external returns (bytes32); function CREATE_TYPEHASH() external returns (bytes32); function baseDescriptionURI() external view returns (string memory); function predictDeterministicAddress( address implementation_, bytes32 salt ) external view returns (address); function getSalt( address owner_, IWritingEditions.WritingEdition memory edition_ ) external view returns (bytes32); function isValid( address owner_, bytes32 salt, uint8 v, bytes32 r, bytes32 s ) external view returns (bool); function setLimit(uint256 _maxLimit) external; function setGuard(bool _guardOn) external; function setImplementation(address _implementation) external; function create( IWritingEditions.WritingEdition memory edition_ ) external returns (address clone); function createWithSignature( address owner_, IWritingEditions.WritingEdition memory edition_, uint8 v, bytes32 r, bytes32 s, address recipient, string memory message ) external payable returns (address clone); function setTributary(address clone, address _tributary) external; }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IObservabilityEvents { /// > [[[[[[[[[[[ Factory events ]]]]]]]]]]] event CloneDeployed( address indexed factory, address indexed owner, address indexed clone ); event TributarySet( address indexed factory, address indexed clone, address oldTributary, address indexed newTributary ); event FactoryLimitSet( address indexed factory, uint256 oldLimit, uint256 newLimit ); event FactoryGuardSet(bool guard); event FactoryImplementationSet( address indexed factory, address indexed oldImplementation, address indexed newImplementation ); /// > [[[[[[[[[[[ Clone events ]]]]]]]]]]] event WritingEditionPurchased( address indexed clone, uint256 tokenId, address indexed recipient, uint256 price, string message, uint256 flatFeeAmount ); event Transfer( address indexed clone, address indexed from, address indexed to, uint256 tokenId ); event RoyaltyChange( address indexed clone, address indexed oldRoyaltyRecipient, uint256 oldRoyaltyBPS, address indexed newRoyaltyRecipient, uint256 newRoyaltyBPS ); event RendererSet(address indexed clone, address indexed renderer); event WritingEditionLimitSet( address indexed clone, uint256 oldLimit, uint256 newLimit ); event PriceSet(address indexed clone, uint256 oldLimit, uint256 newLimit); event FundingRecipientSet( address indexed clone, address indexed oldFundingRecipient, address indexed newFundingRecipient ); event BaseDescriptionURISet( address indexed clone, string oldBaseDescriptionURI, string newBaseDescriptionURI ); } interface IObservability { function emitDeploymentEvent(address owner, address clone) external; function emitTributarySet( address clone, address oldTributary, address newTributary ) external; function emitFactoryGuardSet(bool guard) external; function emitFactoryImplementationSet( address oldImplementation, address newImplementation ) external; function emitFactoryLimitSet(uint256 oldLimit, uint256 newLimit) external; function emitTransferEvent( address from, address to, uint256 tokenId ) external; function emitWritingEditionPurchased( uint256 tokenId, address recipient, uint256 price, string memory message, uint256 flatFeeAmount ) external; function emitRoyaltyChange( address oldRoyaltyRecipient, uint256 oldRoyaltyBPS, address newRoyaltyRecipient, uint256 newRoyaltyBPS ) external; function emitRendererSet(address renderer) external; function emitWritingEditionLimitSet( uint256 oldLimit, uint256 newLimit ) external; function emitFundingRecipientSet( address oldFundingRecipient, address newFundingRecipient ) external; function emitPriceSet(uint256 oldPrice, uint256 newPrice) external; function emitBaseDescriptionURISet( string memory oldBaseDescriptionURI, string memory newBaseDescriptionURI ) external; }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IFeeConfigurationEvents { event FeeSwitch(bool on); event FlatFeeSwitch(bool on); event MinimumFee(uint16 fee); event MaximumFee(uint16 fee); event FlatFeeAmount(uint256 fee); } interface IFeeConfiguration { function on() external returns (bool); function flatFeeOn() external returns (bool); function flatFeeAmount() external returns (uint256); function maximumFee() external returns (uint16); function minimumFee() external returns (uint16); function switchFee() external; function setMinimumFee(uint16 newFee) external; function setMaximumFee(uint16 newFe) external; function valid(uint16 feeBPS) external view returns (bool); }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IRenderer { function tokenURI(uint256 tokenId) external view returns (string calldata); function contractURI() external view returns (string calldata); }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface ITreasuryConfigurationEvents { event TreasurySet(address indexed treasury, address indexed newTreasury); event TributaryRegistrySet( address indexed tributaryRegistry, address indexed newTributaryRegistry ); event DistributionSet( address indexed distribution, address indexed newDistribution ); event FeeConfigurationSet( address indexed feeConfiguration, address indexed newFeeConfiguration ); } interface ITreasuryConfiguration { function treasury() external returns (address payable); function tributaryRegistry() external returns (address); function distribution() external returns (address); function feeConfiguration() external returns (address); function setTreasury(address payable newTreasury) external; function setTributaryRegistry(address newTributaryRegistry) external; function setDistribution(address newDistribution) external; function setFeeConfiguration(address newFeeConfiguration) external; }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface ITreasuryEvents { event Transfer(address indexed from, address indexed to, uint256 value); event ERC20Transfer( address indexed token, address indexed from, address indexed to, uint256 amount ); event ERC721Transfer( address indexed token, address indexed from, address indexed to, uint256 tokenId ); } interface ITreasury { struct Call { // The target of the transaction. address target; // The value passed into the transaction. uint96 value; // Any data passed with the call. bytes data; } function treasuryConfiguration() external view returns (address); function transferFunds(address payable to, uint256 value) external; function transferERC20( address token, address to, uint256 value ) external; function transferERC721( address token, address from, address to, uint256 tokenId ) external; function contributeWithTributary(address tributary) external payable; function contribute(uint256 amount) external payable; }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface ITributaryRegistry { function allowedRegistrar(address account) external view returns (bool); function producerToTributary(address producer) external view returns (address tributary); function singletonProducer(address producer) external view returns (bool); function addRegistrar(address registrar) external; function removeRegistrar(address registrar) external; function addSingletonProducer(address producer) external; function removeSingletonProducer(address producer) external; function setTributary(address producer, address newTributary) external; }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IOwnableEvents { event OwnershipTransferred( address indexed previousOwner, address indexed newOwner ); } interface IOwnable { function transferOwnership(address nextOwner_) external; function cancelOwnershipTransfer() external; function acceptOwnership() external; function renounceOwnership() external; function isOwner() external view returns (bool); function isNextOwner() external view returns (bool); } contract Ownable is IOwnable, IOwnableEvents { address public owner; address private nextOwner; /// > [[[[[[[[[[[ Modifiers ]]]]]]]]]]] modifier onlyOwner() { require(isOwner(), "caller is not the owner."); _; } modifier onlyNextOwner() { require(isNextOwner(), "current owner must set caller as next owner."); _; } /// @notice Initialize contract by setting the initial owner. constructor(address owner_) { _setInitialOwner(owner_); } /// @notice Initiate ownership transfer by setting nextOwner. function transferOwnership(address nextOwner_) external override onlyOwner { require(nextOwner_ != address(0), "Next owner is the zero address."); nextOwner = nextOwner_; } /// @notice Cancel ownership transfer by deleting nextOwner. function cancelOwnershipTransfer() external override onlyOwner { delete nextOwner; } /// @notice Accepts ownership transfer by setting owner. function acceptOwnership() external override onlyNextOwner { delete nextOwner; owner = msg.sender; emit OwnershipTransferred(owner, msg.sender); } /// @notice Renounce ownership by setting owner to zero address. function renounceOwnership() external override onlyOwner { _renounceOwnership(); } /// @notice Returns true if the caller is the current owner. function isOwner() public view override returns (bool) { return msg.sender == owner; } /// @notice Returns true if the caller is the next owner. function isNextOwner() public view override returns (bool) { return msg.sender == nextOwner; } /// > [[[[[[[[[[[ Internal Functions ]]]]]]]]]]] function _setOwner(address previousOwner, address newOwner) internal { owner = newOwner; emit OwnershipTransferred(previousOwner, owner); } function _setInitialOwner(address newOwner) internal { owner = newOwner; emit OwnershipTransferred(address(0), newOwner); } function _renounceOwnership() internal { emit OwnershipTransferred(owner, address(0)); owner = address(0); } }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; import "./interface/IERC721.sol"; import "../ERC165/ERC165.sol"; /** * Based on: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/ERC721.sol */ contract ERC721 is ERC165, IERC721, IERC721Events { mapping(uint256 => address) internal _owners; mapping(address => uint256) internal _balances; mapping(uint256 => address) private _tokenApprovals; mapping(address => mapping(address => bool)) private _operatorApprovals; function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } function balanceOf(address owner) external view virtual override returns (uint256) { require( owner != address(0), "ERC721: balance query for the zero address" ); return _balances[owner]; } function ownerOf(uint256 tokenId) external view virtual returns (address) { return _ownerOf(tokenId); } function _ownerOf(uint256 tokenId) internal view returns (address) { address owner = _owners[tokenId]; require( owner != address(0), "ERC721: owner query for nonexistent token" ); return owner; } function approve(address to, uint256 tokenId) external virtual override { address owner = _ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( msg.sender == owner || isApprovedForAll(owner, msg.sender), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } function getApproved(uint256 tokenId) public view virtual override returns (address) { require( _exists(tokenId), "ERC721: approved query for nonexistent token" ); return _tokenApprovals[tokenId]; } function setApprovalForAll(address operator, bool approved) external virtual override { require(operator != msg.sender, "ERC721: approve to caller"); _operatorApprovals[msg.sender][operator] = approved; emit ApprovalForAll(msg.sender, operator, approved); } function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } function transferFrom( address from, address to, uint256 tokenId ) external virtual override { //solhint-disable-next-line max-line-length require( _isApprovedOrOwner(msg.sender, tokenId), "ERC721: transfer caller is not owner nor approved" ); _transfer(from, to, tokenId); } function safeTransferFrom( address from, address to, uint256 tokenId ) external virtual override { _safeTransferFrom(from, to, tokenId, ""); } function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) external virtual override { _safeTransferFrom(from, to, tokenId, _data); } function _safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { require( _isApprovedOrOwner(msg.sender, tokenId), "ERC721: transfer caller is not owner nor approved" ); _safeTransfer(from, to, tokenId, _data); } 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" ); } function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require( _exists(tokenId), "ERC721: operator query for nonexistent token" ); address owner = _ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } 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" ); } 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); } function _burn(uint256 tokenId) internal virtual { address owner = _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); } function _transfer( address from, address to, uint256 tokenId ) internal virtual { require( _ownerOf(tokenId) == from, "ERC721: transfer of token that is not own" ); 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); } function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(_ownerOf(tokenId), to, tokenId); } function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.code.length > 0) { // slither-disable-next-line unused-return try IERC721Receiver(to).onERC721Received( msg.sender, from, tokenId, _data ) returns (bytes4 retval) { return retval == IERC721Receiver(to).onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert( "ERC721: transfer to non ERC721Receiver implementer" ); } else { // solhint-disable-next-line no-inline-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IERC165 { function supportsInterface(bytes4 interfaceId) external view returns (bool); } abstract contract ERC165 is IERC165 { function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; interface IERC721 { function balanceOf(address owner) external view returns (uint256 balance); function ownerOf(uint256 tokenId) external view returns (address owner); function safeTransferFrom( address from, address to, uint256 tokenId ) external; function transferFrom( address from, address to, uint256 tokenId ) external; function approve(address to, uint256 tokenId) external; function getApproved(uint256 tokenId) external view returns (address operator); function setApprovalForAll(address operator, bool _approved) external; function isApprovedForAll(address owner, address operator) external view returns (bool); function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; } interface IERC721Events { event Transfer( address indexed from, address indexed to, uint256 indexed tokenId ); event Approval( address indexed owner, address indexed approved, uint256 indexed tokenId ); event ApprovalForAll( address indexed owner, address indexed operator, bool approved ); } interface IERC721Metadata { function name() external view returns (string memory); function symbol() external view returns (string memory); function tokenURI(uint256 tokenId) external view returns (string memory); } interface IERC721Burnable is IERC721 { function burn(uint256 tokenId) external; } interface IERC721Receiver { function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); } interface IERC721Royalties { function getFeeRecipients(uint256 id) external view returns (address payable[] memory); function getFeeBps(uint256 id) external view returns (uint256[] memory); }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; /** * @title IERC2981 * @notice Interface for the NFT Royalty Standard */ interface IERC2981 { // / bytes4(keccak256("royaltyInfo(uint256,uint256)")) == 0x2a55205a /** * @notice Called with the sale price to determine how much royalty * is owed and to whom. * @param _tokenId - the NFT asset queried for royalty information * @param _salePrice - the sale price of the NFT asset specified by _tokenId * @return receiver - address of who should be sent the royalty payment * @return royaltyAmount - the royalty payment amount for _salePrice */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: GPL-3.0-or-later pragma solidity ^0.8.0; /** * @title TransactionReentrancyGuard * @notice Transaction level reentrancy guard, used to prevent calling a * function multiple times in the same transaction, e.g. minting a token * using a multicall contract. The guard accesses a storage variable twice * and compares the gas used, taking advantage of EIP-2929 cold/warm storage * read costs. * * From EIP-2929: Gas cost increases for state access opcodes: * "For SLOAD, if the (address, storage_key) pair (where address * is the address of the contract whose storage is being read) is not yet * in accessed_storage_keys, charge COLD_SLOAD_COST gas and add the pair * to accessed_storage_keys. If the pair is already in accessed_storage_keys, * charge WARM_STORAGE_READ_COST gas." * * Implementation was forked from bertani.eth, after a thread involving these * anon solidity giga-brains: [at]rage_pit, [at]transmissions11, 0age.eth. */ contract TransactionReentrancyGuard { bool public guardOn; uint256 internal GUARD = 1; /// > [[[[[[[[[[[ Modifiers ]]]]]]]]]]] modifier guard() { // If guard is on, run guard. if (guardOn) { _guard(); } _; } constructor(bool _guardOn) { _setGuard(_guardOn); } function _guard() internal view { // Store current gas left. uint256 t0 = gasleft(); // Load GUARD from storage. uint256 g = GUARD; // Store current gas left. uint256 t1 = gasleft(); // Load GUARD from storage. uint256 m = GUARD; // Assert the cost of acessing `g` is greater than the // cost of accessing `m`, which implies the first SLOAD // was charged COLD_SLOAD_COST and the second SLOAD was // charged WARM_STORAGE_READ_COST. Hence this is the first // time the function has been called. require(t1 - gasleft() < t0 - t1); } function _toggleGuard() internal { _setGuard(!guardOn); } function _setGuard(bool _guardOn) internal { guardOn = _guardOn; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol) pragma solidity ^0.8.0; /** * @dev Provides a set of functions to operate with Base64 strings. * * _Available since v4.5._ */ library Base64 { /** * @dev Base64 Encoding/Decoding Table */ string internal constant _TABLE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; /** * @dev Converts a `bytes` to its Bytes64 `string` representation. */ function encode(bytes memory data) internal pure returns (string memory) { /** * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol */ if (data.length == 0) return ""; // Loads the table into memory string memory table = _TABLE; // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter // and split into 4 numbers of 6 bits. // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up // - `data.length + 2` -> Round up // - `/ 3` -> Number of 3-bytes chunks // - `4 *` -> 4 characters for each chunk string memory result = new string(4 * ((data.length + 2) / 3)); /// @solidity memory-safe-assembly assembly { // Prepare the lookup table (skip the first "length" byte) let tablePtr := add(table, 1) // Prepare result pointer, jump over length let resultPtr := add(result, 32) // Run over the input, 3 bytes at a time for { let dataPtr := data let endPtr := add(data, mload(data)) } lt(dataPtr, endPtr) { } { // Advance 3 bytes dataPtr := add(dataPtr, 3) let input := mload(dataPtr) // To write each character, shift the 3 bytes (18 bits) chunk // 4 times in blocks of 6 bits for each character (18, 12, 6, 0) // and apply logical AND with 0x3F which is the number of // the previous character in the ASCII table prior to the Base64 Table // The result is then added to the table to get the character to write, // and finally write it in the result pointer but with a left shift // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F)))) resultPtr := add(resultPtr, 1) // Advance mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F)))) resultPtr := add(resultPtr, 1) // Advance } // When data `bytes` is not exactly 3 bytes long // it is padded with `=` characters at the end switch mod(mload(data), 3) case 1 { mstore8(sub(resultPtr, 1), 0x3d) mstore8(sub(resultPtr, 2), 0x3d) } case 2 { mstore8(sub(resultPtr, 1), 0x3d) } } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { 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); } }
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A token is a representation of an on-chain or off-chain asset. The token page shows information such as price, total supply, holders, transfers and social links. Learn more about this page in our Knowledge Base.