ERC-721
NFT
Overview
Max Total Supply
0 EXPLORE
Holders
12,077
Market
Volume (24H)
1.484 ETH
Min Price (24H)
$90.51 @ 0.023400 ETH
Max Price (24H)
$580.17 @ 0.150000 ETH
Other Info
Token Contract
Balance
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
GenArt721CoreV3_Explorations
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 25 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: LGPL-3.0-only pragma solidity 0.8.17; // Created By: Art Blocks Inc. import "../interfaces/0.8.x/IRandomizerV2.sol"; import "../interfaces/0.8.x/IAdminACLV0.sol"; import "../interfaces/0.8.x/IGenArt721CoreContractV3.sol"; import "../interfaces/0.8.x/IManifold.sol"; import "@openzeppelin-4.7/contracts/utils/Strings.sol"; import "@openzeppelin-4.7/contracts/access/Ownable.sol"; import "../libs/0.8.x/ERC721_PackedHashSeed.sol"; import "../libs/0.8.x/BytecodeStorage.sol"; import "../libs/0.8.x/Bytes32Strings.sol"; /** * @title Art Blocks ERC-721 core contract, V3_Explorations. * @author Art Blocks Inc. * @notice Privileged Roles and Ownership: * This contract is designed to be managed, with progressively limited powers * as a project progresses from active to locked. * Privileged roles and abilities are controlled by the admin ACL contract and * artists. Both of these roles hold extensive power and can arbitrarily * control and modify portions of projects, dependent upon project state. After * a project is locked, important project metadata fields are locked including * the project name, artist name, and script and display details. Edition size * can never be increased. * Care must be taken to ensure that the admin ACL contract and artist * addresses are secure behind a multi-sig or other access control mechanism. * ---------------------------------------------------------------------------- * The following functions are restricted to the Admin ACL contract: * - updateArtblocksDependencyRegistryAddress * - updateArtblocksPrimarySalesAddress * - updateArtblocksSecondarySalesAddress * - updateArtblocksPrimarySalesPercentage (up to 100%) * - updateArtblocksSecondarySalesBPS (up to 100%) * - updateMinterContract * - updateRandomizerAddress * - toggleProjectIsActive * - addProject * - forbidNewProjects (forever forbidding new projects) * - updateDefaultBaseURI (used to initialize new project base URIs) * ---------------------------------------------------------------------------- * The following functions are restricted to either the the Artist address or * the Admin ACL contract, only when the project is not locked: * - updateProjectName * - updateProjectArtistName * - updateProjectLicense * - Change project script via addProjectScript, updateProjectScript, * and removeProjectLastScript * - updateProjectScriptType * - updateProjectAspectRatio * ---------------------------------------------------------------------------- * The following functions are restricted to only the Artist address: * - proposeArtistPaymentAddressesAndSplits (Note that this has to be accepted * by adminAcceptArtistAddressesAndSplits to take effect, which is restricted * to the Admin ACL contract, or the artist if the core contract owner has * renounced ownership. Also note that a proposal will be automatically * accepted if the artist only proposes changed payee percentages without * modifying any payee addresses, or is only removing payee addresses.) * - toggleProjectIsPaused (note the artist can still mint while paused) * - updateProjectSecondaryMarketRoyaltyPercentage (up to ARTIST_MAX_SECONDARY_ROYALTY_PERCENTAGE percent) * - updateProjectWebsite * - updateProjectMaxInvocations (to a number greater than or equal to the * current number of invocations, and less than current project maximum * invocations) * - updateProjectBaseURI (controlling the base URI for tokens in the project) * ---------------------------------------------------------------------------- * The following function is restricted to either the Admin ACL contract, or * the Artist address if the core contract owner has renounced ownership: * - adminAcceptArtistAddressesAndSplits * - updateProjectArtistAddress (owner ultimately controlling the project and * its and-on revenue, unless owner has renounced ownership) * ---------------------------------------------------------------------------- * The following function is restricted to the artist when a project is * unlocked, and only callable by Admin ACL contract when a project is locked: * - updateProjectDescription * ---------------------------------------------------------------------------- * The following function is restricted to owner calling directly: * - transferOwnership * - renounceOwnership * ---------------------------------------------------------------------------- * Additional admin and artist privileged roles may be described on minters, * registries, and other contracts that may interact with this core contract. */ contract GenArt721CoreV3_Explorations is ERC721_PackedHashSeed, Ownable, IGenArt721CoreContractV3 { using BytecodeStorage for string; using BytecodeStorage for address; using Bytes32Strings for bytes32; using Strings for uint256; using Strings for address; uint256 constant ONE_HUNDRED = 100; uint256 constant ONE_MILLION = 1_000_000; uint24 constant ONE_MILLION_UINT24 = 1_000_000; uint256 constant FOUR_WEEKS_IN_SECONDS = 2_419_200; uint8 constant AT_CHARACTER_CODE = uint8(bytes1("@")); // 0x40 // numeric constants uint256 constant ART_BLOCKS_MAX_PRIMARY_SALES_PERCENTAGE = 100; // 100% uint256 constant ART_BLOCKS_MAX_SECONDARY_SALES_BPS = 10000; // 10_000 BPS = 100% uint256 constant ARTIST_MAX_SECONDARY_ROYALTY_PERCENTAGE = 95; // 95% // This contract emits generic events that contain fields that indicate // which parameter has been updated. This is sufficient for application // state management, while also simplifying the contract and indexing code. // This was done as an alternative to having custom events that emit what // field-values have changed for each event, given that changed values can // be introspected by indexers due to the design of this smart contract // exposing these state changes via publicly viewable fields. // // The following fields are used to indicate which contract-level parameter // has been updated in the `PlatformUpdated` event: bytes32 constant FIELD_NEXT_PROJECT_ID = "nextProjectId"; bytes32 constant FIELD_NEW_PROJECTS_FORBIDDEN = "newProjectsForbidden"; bytes32 constant FIELD_DEFAULT_BASE_URI = "defaultBaseURI"; bytes32 constant FIELD_ARTBLOCKS_PRIMARY_SALES_ADDRESS = "artblocksPrimarySalesAddress"; bytes32 constant FIELD_ARTBLOCKS_SECONDARY_SALES_ADDRESS = "artblocksSecondarySalesAddress"; bytes32 constant FIELD_RANDOMIZER_ADDRESS = "randomizerAddress"; // note: Curation registry address will never be updated on V3 Explorations bytes32 constant FIELD_ARTBLOCKS_CURATION_REGISTRY_ADDRESS = "curationRegistryAddress"; bytes32 constant FIELD_ARTBLOCKS_DEPENDENCY_REGISTRY_ADDRESS = "dependencyRegistryAddress"; bytes32 constant FIELD_ARTBLOCKS_PRIMARY_SALES_PERCENTAGE = "artblocksPrimaryPercentage"; bytes32 constant FIELD_ARTBLOCKS_SECONDARY_SALES_BPS = "artblocksSecondaryBPS"; // The following fields are used to indicate which project-level parameter // has been updated in the `ProjectUpdated` event: bytes32 constant FIELD_PROJECT_COMPLETED = "completed"; bytes32 constant FIELD_PROJECT_ACTIVE = "active"; bytes32 constant FIELD_PROJECT_ARTIST_ADDRESS = "artistAddress"; bytes32 constant FIELD_PROJECT_PAUSED = "paused"; bytes32 constant FIELD_PROJECT_CREATED = "created"; bytes32 constant FIELD_PROJECT_NAME = "name"; bytes32 constant FIELD_PROJECT_ARTIST_NAME = "artistName"; bytes32 constant FIELD_PROJECT_SECONDARY_MARKET_ROYALTY_PERCENTAGE = "royaltyPercentage"; bytes32 constant FIELD_PROJECT_DESCRIPTION = "description"; bytes32 constant FIELD_PROJECT_WEBSITE = "website"; bytes32 constant FIELD_PROJECT_LICENSE = "license"; bytes32 constant FIELD_PROJECT_MAX_INVOCATIONS = "maxInvocations"; bytes32 constant FIELD_PROJECT_SCRIPT = "script"; bytes32 constant FIELD_PROJECT_SCRIPT_TYPE = "scriptType"; bytes32 constant FIELD_PROJECT_ASPECT_RATIO = "aspectRatio"; bytes32 constant FIELD_PROJECT_BASE_URI = "baseURI"; /// Curation registry is not relevant for Art Blocks Explorations, and will /// remain null for interface-conformance purposes only, specifically for /// indexing layers. address public artblocksCurationRegistryAddress; /// Dependency registry managed by Art Blocks address public artblocksDependencyRegistryAddress; /// current randomizer contract IRandomizerV2 public randomizerContract; /// append-only array of all randomizer contract addresses ever used by /// this contract address[] private _historicalRandomizerAddresses; /// admin ACL contract IAdminACLV0 public adminACLContract; struct Project { uint24 invocations; uint24 maxInvocations; uint24 scriptCount; // max uint64 ~= 1.8e19 sec ~= 570 billion years uint64 completedTimestamp; bool active; bool paused; string name; string artist; string description; string website; string license; string projectBaseURI; bytes32 scriptTypeAndVersion; string aspectRatio; // mapping from script index to address storing script in bytecode mapping(uint256 => address) scriptBytecodeAddresses; } mapping(uint256 => Project) projects; /// packed struct containing project financial information struct ProjectFinance { address payable additionalPayeePrimarySales; // packed uint: max of 95, max uint8 = 255 uint8 secondaryMarketRoyaltyPercentage; address payable additionalPayeeSecondarySales; // packed uint: max of 100, max uint8 = 255 uint8 additionalPayeeSecondarySalesPercentage; address payable artistAddress; // packed uint: max of 100, max uint8 = 255 uint8 additionalPayeePrimarySalesPercentage; } // Project financials mapping mapping(uint256 => ProjectFinance) projectIdToFinancials; /// hash of artist's proposed payment updates to be approved by admin mapping(uint256 => bytes32) public proposedArtistAddressesAndSplitsHash; /// Art Blocks payment address for all primary sales revenues (packed) address payable public artblocksPrimarySalesAddress; /// Percentage of primary sales revenue allocated to Art Blocks (packed) // packed uint: max of 25, max uint8 = 255 uint8 private _artblocksPrimarySalesPercentage = 10; /// Art Blocks payment address for all secondary sales royalty revenues address payable public artblocksSecondarySalesAddress; /// Basis Points of secondary sales royalties allocated to Art Blocks uint256 public artblocksSecondarySalesBPS = 250; /// single minter allowed for this core contract address public minterContract; /// starting (initial) project ID on this contract uint256 public immutable startingProjectId; /// next project ID to be created uint248 private _nextProjectId; /// bool indicating if adding new projects is forbidden; /// default behavior is to allow new projects bool public newProjectsForbidden; /// version & type of this core contract /// coreVersion is updated from Flagship V3 core due to minor changes /// implemented in the Explorations version of the contract. string public constant coreVersion = "v3.0.1"; /// coreType remains consistent with flagship V3 core because external & /// public functions used for indexing are unchanged. string public constant coreType = "GenArt721CoreV3"; /// default base URI to initialize all new project projectBaseURI values to string public defaultBaseURI; modifier onlyNonZeroAddress(address _address) { require(_address != address(0), "Must input non-zero address"); _; } modifier onlyNonEmptyString(string memory _string) { require(bytes(_string).length != 0, "Must input non-empty string"); _; } modifier onlyValidTokenId(uint256 _tokenId) { require(_exists(_tokenId), "Token ID does not exist"); _; } modifier onlyValidProjectId(uint256 _projectId) { require( (_projectId >= startingProjectId) && (_projectId < _nextProjectId), "Project ID does not exist" ); _; } modifier onlyUnlocked(uint256 _projectId) { // Note: calling `_projectUnlocked` enforces that the `_projectId` // passed in is valid.` require(_projectUnlocked(_projectId), "Only if unlocked"); _; } modifier onlyAdminACL(bytes4 _selector) { require( adminACLAllowed(msg.sender, address(this), _selector), "Only Admin ACL allowed" ); _; } modifier onlyArtist(uint256 _projectId) { require( msg.sender == projectIdToFinancials[_projectId].artistAddress, "Only artist" ); _; } modifier onlyArtistOrAdminACL(uint256 _projectId, bytes4 _selector) { require( msg.sender == projectIdToFinancials[_projectId].artistAddress || adminACLAllowed(msg.sender, address(this), _selector), "Only artist or Admin ACL allowed" ); _; } /** * This modifier allows the artist of a project to call a function if the * owner of the contract has renounced ownership. This is to allow the * contract to continue to function if the owner decides to renounce * ownership. */ modifier onlyAdminACLOrRenouncedArtist( uint256 _projectId, bytes4 _selector ) { require( adminACLAllowed(msg.sender, address(this), _selector) || (owner() == address(0) && msg.sender == projectIdToFinancials[_projectId].artistAddress), "Only Admin ACL allowed, or artist if owner has renounced" ); _; } /** * @notice Initializes contract. * @param _tokenName Name of token. * @param _tokenSymbol Token symbol. * @param _randomizerContract Randomizer contract. * @param _adminACLContract Address of admin access control contract, to be * set as contract owner. * @param _startingProjectId The initial next project ID. * @dev _startingProjectId should be set to a value much, much less than * max(uint248), but an explicit input type of `uint248` is used as it is * safer to cast up to `uint256` than it is to cast down for the purposes * of setting `_nextProjectId`. */ constructor( string memory _tokenName, string memory _tokenSymbol, address _randomizerContract, address _adminACLContract, uint248 _startingProjectId ) ERC721_PackedHashSeed(_tokenName, _tokenSymbol) onlyNonZeroAddress(_randomizerContract) { // record contracts starting project ID // casting-up is safe startingProjectId = uint256(_startingProjectId); _updateArtblocksPrimarySalesAddress(msg.sender); _updateArtblocksSecondarySalesAddress(msg.sender); _updateRandomizerAddress(_randomizerContract); // set AdminACL management contract as owner _transferOwnership(_adminACLContract); // initialize default base URI _updateDefaultBaseURI( string.concat( "https://token.artblocks.io/", address(this).toHexString(), "/" ) ); // initialize next project ID _nextProjectId = _startingProjectId; emit PlatformUpdated(FIELD_NEXT_PROJECT_ID); } /** * @notice Mints a token from project `_projectId` and sets the * token's owner to `_to`. Hash may or may not be assigned to the token * during the mint transaction, depending on the randomizer contract. * @param _to Address to be the minted token's owner. * @param _projectId Project ID to mint a token on. * @param _by Purchaser of minted token. * @return _tokenId The ID of the minted token. * @dev sender must be the allowed minterContract * @dev name of function is optimized for gas usage */ function mint_Ecf( address _to, uint256 _projectId, address _by ) external returns (uint256 _tokenId) { // CHECKS require(msg.sender == minterContract, "Must mint from minter contract"); Project storage project = projects[_projectId]; // load invocations into memory uint24 invocationsBefore = project.invocations; uint24 invocationsAfter; unchecked { // invocationsBefore guaranteed <= maxInvocations <= 1_000_000, // 1_000_000 << max uint24, so no possible overflow invocationsAfter = invocationsBefore + 1; } uint24 maxInvocations = project.maxInvocations; require( invocationsBefore < maxInvocations, "Must not exceed max invocations" ); require( project.active || _by == projectIdToFinancials[_projectId].artistAddress, "Project must exist and be active" ); require( !project.paused || _by == projectIdToFinancials[_projectId].artistAddress, "Purchases are paused." ); // EFFECTS // increment project's invocations project.invocations = invocationsAfter; uint256 thisTokenId; unchecked { // invocationsBefore is uint24 << max uint256. In production use, // _projectId * ONE_MILLION must be << max uint256, otherwise // tokenIdToProjectId function become invalid. // Therefore, no risk of overflow thisTokenId = (_projectId * ONE_MILLION) + invocationsBefore; } // mark project as completed if hit max invocations if (invocationsAfter == maxInvocations) { _completeProject(_projectId); } // INTERACTIONS _mint(_to, thisTokenId); // token hash is updated by the randomizer contract on V3 randomizerContract.assignTokenHash(thisTokenId); // Do not need to also log `projectId` in event, as the `projectId` for // a given token can be derived from the `tokenId` with: // projectId = tokenId / 1_000_000 emit Mint(_to, thisTokenId); return thisTokenId; } /** * @notice Sets the hash seed for a given token ID `_tokenId`. * May only be called by the current randomizer contract. * May only be called for tokens that have not already been assigned a * non-zero hash. * @param _tokenId Token ID to set the hash for. * @param _hashSeed Hash seed to set for the token ID. Only last 12 bytes * will be used. * @dev gas-optimized function name because called during mint sequence * @dev if a separate event is required when the token hash is set, e.g. * for indexing purposes, it must be emitted by the randomizer. This is to * minimize gas when minting. */ function setTokenHash_8PT(uint256 _tokenId, bytes32 _hashSeed) external onlyValidTokenId(_tokenId) { OwnerAndHashSeed storage ownerAndHashSeed = _ownersAndHashSeeds[ _tokenId ]; require( msg.sender == address(randomizerContract), "Only randomizer may set" ); require( ownerAndHashSeed.hashSeed == bytes12(0), "Token hash already set" ); require(_hashSeed != bytes12(0), "No zero hash seed"); ownerAndHashSeed.hashSeed = bytes12(_hashSeed); } /** * @notice Allows owner (AdminACL) to revoke ownership of the contract. * Note that the contract is intended to continue to function after the * owner renounces ownership, but no new projects will be able to be added. * Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the * owner/AdminACL contract. The same is true for any dependent contracts * that also integrate with the owner/AdminACL contract (e.g. potentially * minter suite contracts, registry contracts, etc.). * After renouncing ownership, artists will be in control of updates to * their payment addresses and splits (see modifier * onlyAdminACLOrRenouncedArtist`). * While there is no currently intended reason to call this method based on * defined Art Blocks business practices, this method exists to allow * artists to continue to maintain the limited set of contract * functionality that exists post-project-lock in an environment in which * there is no longer an admin maintaining this smart contract. * @dev This function is intended to be called directly by the AdminACL, * not by an address allowed by the AdminACL contract. */ function renounceOwnership() public override onlyOwner { // broadcast that new projects are no longer allowed (if not already) _forbidNewProjects(); // renounce ownership viw Ownable Ownable.renounceOwnership(); } /** * @notice Warning: Configuring Curation Registry contract is not supported * on V3 Explorations version of this contract. * This method exists only to maintain this portion of the contract * interface with other V3 cores. * @param _artblocksCurationRegistryAddress) */ function updateArtblocksCurationRegistryAddress( address _artblocksCurationRegistryAddress ) external onlyAdminACL(this.updateArtblocksCurationRegistryAddress.selector) onlyNonZeroAddress(_artblocksCurationRegistryAddress) { revert("Action not supported"); } /** * @notice Updates reference to Art Blocks Dependency Registry contract. * @param _artblocksDependencyRegistryAddress Address of new Dependency * Registry. */ function updateArtblocksDependencyRegistryAddress( address _artblocksDependencyRegistryAddress ) external onlyAdminACL(this.updateArtblocksDependencyRegistryAddress.selector) onlyNonZeroAddress(_artblocksDependencyRegistryAddress) { artblocksDependencyRegistryAddress = _artblocksDependencyRegistryAddress; emit PlatformUpdated(FIELD_ARTBLOCKS_DEPENDENCY_REGISTRY_ADDRESS); } /** * @notice Updates artblocksPrimarySalesAddress to * `_artblocksPrimarySalesAddress`. * @param _artblocksPrimarySalesAddress Address of new primary sales * payment address. */ function updateArtblocksPrimarySalesAddress( address payable _artblocksPrimarySalesAddress ) external onlyAdminACL(this.updateArtblocksPrimarySalesAddress.selector) onlyNonZeroAddress(_artblocksPrimarySalesAddress) { _updateArtblocksPrimarySalesAddress(_artblocksPrimarySalesAddress); } /** * @notice Updates Art Blocks secondary sales royalty payment address to * `_artblocksSecondarySalesAddress`. * @param _artblocksSecondarySalesAddress Address of new secondary sales * payment address. */ function updateArtblocksSecondarySalesAddress( address payable _artblocksSecondarySalesAddress ) external onlyAdminACL(this.updateArtblocksSecondarySalesAddress.selector) onlyNonZeroAddress(_artblocksSecondarySalesAddress) { _updateArtblocksSecondarySalesAddress(_artblocksSecondarySalesAddress); } /** * @notice Updates Art Blocks primary sales revenue percentage to * `artblocksPrimarySalesPercentage_`. * @param artblocksPrimarySalesPercentage_ New primary sales revenue * percentage. */ function updateArtblocksPrimarySalesPercentage( uint256 artblocksPrimarySalesPercentage_ ) external onlyAdminACL(this.updateArtblocksPrimarySalesPercentage.selector) { require( artblocksPrimarySalesPercentage_ <= ART_BLOCKS_MAX_PRIMARY_SALES_PERCENTAGE, "Max of ART_BLOCKS_MAX_PRIMARY_SALES_PERCENTAGE percent" ); _artblocksPrimarySalesPercentage = uint8( artblocksPrimarySalesPercentage_ ); emit PlatformUpdated(FIELD_ARTBLOCKS_PRIMARY_SALES_PERCENTAGE); } /** * @notice Updates Art Blocks secondary sales royalty Basis Points to * `_artblocksSecondarySalesBPS`. * @param _artblocksSecondarySalesBPS New secondary sales royalty Basis * points. * @dev Due to secondary royalties being ultimately enforced via social * consensus, no hard upper limit is imposed on the BPS value, other than * <= 100% royalty, which would not make mathematical sense. Realistically, * changing this value is expected to either never occur, or be a rare * occurrence. */ function updateArtblocksSecondarySalesBPS( uint256 _artblocksSecondarySalesBPS ) external onlyAdminACL(this.updateArtblocksSecondarySalesBPS.selector) { require( _artblocksSecondarySalesBPS <= ART_BLOCKS_MAX_SECONDARY_SALES_BPS, "Max of ART_BLOCKS_MAX_SECONDARY_SALES_BPS BPS" ); artblocksSecondarySalesBPS = _artblocksSecondarySalesBPS; emit PlatformUpdated(FIELD_ARTBLOCKS_SECONDARY_SALES_BPS); } /** * @notice Updates minter to `_address`. * @param _address Address of new minter. */ function updateMinterContract(address _address) external onlyAdminACL(this.updateMinterContract.selector) onlyNonZeroAddress(_address) { minterContract = _address; emit MinterUpdated(_address); } /** * @notice Updates randomizer to `_randomizerAddress`. * @param _randomizerAddress Address of new randomizer. */ function updateRandomizerAddress(address _randomizerAddress) external onlyAdminACL(this.updateRandomizerAddress.selector) onlyNonZeroAddress(_randomizerAddress) { _updateRandomizerAddress(_randomizerAddress); } /** * @notice Toggles project `_projectId` as active/inactive. * @param _projectId Project ID to be toggled. */ function toggleProjectIsActive(uint256 _projectId) external onlyAdminACL(this.toggleProjectIsActive.selector) onlyValidProjectId(_projectId) { projects[_projectId].active = !projects[_projectId].active; emit ProjectUpdated(_projectId, FIELD_PROJECT_ACTIVE); } /** * @notice Artist proposes updated set of artist address, additional payee * addresses, and percentage splits for project `_projectId`. Addresses and * percentages do not have to all be changed, but they must all be defined * as a complete set. * Note that if the artist is only proposing a change to the payee percentage * splits, without modifying the payee addresses, the proposal will be * automatically approved and the new splits will become active immediately. * Automatic approval will also be granted if the artist is only removing * additional payee addresses, without adding any new ones. * Also note that if the artist is proposing sending funds to the zero * address, this function will revert and the proposal will not be created. * @param _projectId Project ID. * @param _artistAddress Artist address that controls the project, and may * receive payments. * @param _additionalPayeePrimarySales Address that may receive a * percentage split of the artist's primary sales revenue. * @param _additionalPayeePrimarySalesPercentage Percent of artist's * portion of primary sale revenue that will be split to address * `_additionalPayeePrimarySales`. * @param _additionalPayeeSecondarySales Address that may receive a percentage * split of the secondary sales royalties. * @param _additionalPayeeSecondarySalesPercentage Percent of artist's portion * of secondary sale royalties that will be split to address * `_additionalPayeeSecondarySales`. * @dev `_artistAddress` must be a valid address (non-zero-address), but it * is intentionally allowable for `_additionalPayee{Primary,Secondaary}Sales` * and their associated percentages to be zero'd out by the controlling artist. */ function proposeArtistPaymentAddressesAndSplits( uint256 _projectId, address payable _artistAddress, address payable _additionalPayeePrimarySales, uint256 _additionalPayeePrimarySalesPercentage, address payable _additionalPayeeSecondarySales, uint256 _additionalPayeeSecondarySalesPercentage ) external onlyValidProjectId(_projectId) onlyArtist(_projectId) onlyNonZeroAddress(_artistAddress) { ProjectFinance storage projectFinance = projectIdToFinancials[ _projectId ]; // checks require( _additionalPayeePrimarySalesPercentage <= ONE_HUNDRED && _additionalPayeeSecondarySalesPercentage <= ONE_HUNDRED, "Max of 100%" ); require( _additionalPayeePrimarySalesPercentage == 0 || _additionalPayeePrimarySales != address(0), "Primary payee is zero address" ); require( _additionalPayeeSecondarySalesPercentage == 0 || _additionalPayeeSecondarySales != address(0), "Secondary payee is zero address" ); // effects // emit event for off-chain indexing // note: always emit a proposal event, even in the pathway of // automatic approval, to simplify indexing expectations emit ProposedArtistAddressesAndSplits( _projectId, _artistAddress, _additionalPayeePrimarySales, _additionalPayeePrimarySalesPercentage, _additionalPayeeSecondarySales, _additionalPayeeSecondarySalesPercentage ); // automatically accept if no proposed addresses modifications, or if // the proposal only removes payee addresses. // store proposal hash on-chain, only if not automatic accept bool automaticAccept; { // block scope to avoid stack too deep error bool artistUnchanged = _artistAddress == projectFinance.artistAddress; bool additionalPrimaryUnchangedOrRemoved = (_additionalPayeePrimarySales == projectFinance.additionalPayeePrimarySales) || (_additionalPayeePrimarySales == address(0)); bool additionalSecondaryUnchangedOrRemoved = (_additionalPayeeSecondarySales == projectFinance.additionalPayeeSecondarySales) || (_additionalPayeeSecondarySales == address(0)); automaticAccept = artistUnchanged && additionalPrimaryUnchangedOrRemoved && additionalSecondaryUnchangedOrRemoved; } if (automaticAccept) { // clear any previously proposed values proposedArtistAddressesAndSplitsHash[_projectId] = bytes32(0); // update storage // (artist address cannot change during automatic accept) projectFinance .additionalPayeePrimarySales = _additionalPayeePrimarySales; // safe to cast as uint8 as max is 100%, max uint8 is 255 projectFinance.additionalPayeePrimarySalesPercentage = uint8( _additionalPayeePrimarySalesPercentage ); projectFinance .additionalPayeeSecondarySales = _additionalPayeeSecondarySales; // safe to cast as uint8 as max is 100%, max uint8 is 255 projectFinance.additionalPayeeSecondarySalesPercentage = uint8( _additionalPayeeSecondarySalesPercentage ); // emit event for off-chain indexing emit AcceptedArtistAddressesAndSplits(_projectId); } else { proposedArtistAddressesAndSplitsHash[_projectId] = keccak256( abi.encode( _artistAddress, _additionalPayeePrimarySales, _additionalPayeePrimarySalesPercentage, _additionalPayeeSecondarySales, _additionalPayeeSecondarySalesPercentage ) ); } } /** * @notice Admin accepts a proposed set of updated artist address, * additional payee addresses, and percentage splits for project * `_projectId`. Addresses and percentages do not have to all be changed, * but they must all be defined as a complete set. * @param _projectId Project ID. * @param _artistAddress Artist address that controls the project, and may * receive payments. * @param _additionalPayeePrimarySales Address that may receive a * percentage split of the artist's primary sales revenue. * @param _additionalPayeePrimarySalesPercentage Percent of artist's * portion of primary sale revenue that will be split to address * `_additionalPayeePrimarySales`. * @param _additionalPayeeSecondarySales Address that may receive a percentage * split of the secondary sales royalties. * @param _additionalPayeeSecondarySalesPercentage Percent of artist's portion * of secondary sale royalties that will be split to address * `_additionalPayeeSecondarySales`. * @dev this must be called by the Admin ACL contract, and must only accept * the most recent proposed values for a given project (validated on-chain * by comparing the hash of the proposed and accepted values). * @dev `_artistAddress` must be a valid address (non-zero-address), but it * is intentionally allowable for `_additionalPayee{Primary,Secondaary}Sales` * and their associated percentages to be zero'd out by the controlling artist. */ function adminAcceptArtistAddressesAndSplits( uint256 _projectId, address payable _artistAddress, address payable _additionalPayeePrimarySales, uint256 _additionalPayeePrimarySalesPercentage, address payable _additionalPayeeSecondarySales, uint256 _additionalPayeeSecondarySalesPercentage ) external onlyValidProjectId(_projectId) onlyAdminACLOrRenouncedArtist( _projectId, this.adminAcceptArtistAddressesAndSplits.selector ) onlyNonZeroAddress(_artistAddress) { // checks require( proposedArtistAddressesAndSplitsHash[_projectId] == keccak256( abi.encode( _artistAddress, _additionalPayeePrimarySales, _additionalPayeePrimarySalesPercentage, _additionalPayeeSecondarySales, _additionalPayeeSecondarySalesPercentage ) ), "Must match artist proposal" ); // effects ProjectFinance storage projectFinance = projectIdToFinancials[ _projectId ]; projectFinance.artistAddress = _artistAddress; projectFinance .additionalPayeePrimarySales = _additionalPayeePrimarySales; projectFinance.additionalPayeePrimarySalesPercentage = uint8( _additionalPayeePrimarySalesPercentage ); projectFinance .additionalPayeeSecondarySales = _additionalPayeeSecondarySales; projectFinance.additionalPayeeSecondarySalesPercentage = uint8( _additionalPayeeSecondarySalesPercentage ); // clear proposed values proposedArtistAddressesAndSplitsHash[_projectId] = bytes32(0); // emit event for off-chain indexing emit AcceptedArtistAddressesAndSplits(_projectId); } /** * @notice Updates artist of project `_projectId` to `_artistAddress`. * This is to only be used in the event that the artist address is * compromised or sanctioned. * @param _projectId Project ID. * @param _artistAddress New artist address. */ function updateProjectArtistAddress( uint256 _projectId, address payable _artistAddress ) external onlyValidProjectId(_projectId) onlyAdminACLOrRenouncedArtist( _projectId, this.updateProjectArtistAddress.selector ) onlyNonZeroAddress(_artistAddress) { projectIdToFinancials[_projectId].artistAddress = _artistAddress; emit ProjectUpdated(_projectId, FIELD_PROJECT_ARTIST_ADDRESS); } /** * @notice Toggles paused state of project `_projectId`. * @param _projectId Project ID to be toggled. */ function toggleProjectIsPaused(uint256 _projectId) external onlyArtist(_projectId) { projects[_projectId].paused = !projects[_projectId].paused; emit ProjectUpdated(_projectId, FIELD_PROJECT_PAUSED); } /** * @notice Adds new project `_projectName` by `_artistAddress`. * @param _projectName Project name. * @param _artistAddress Artist's address. * @dev token price now stored on minter */ function addProject( string memory _projectName, address payable _artistAddress ) external onlyAdminACL(this.addProject.selector) onlyNonEmptyString(_projectName) onlyNonZeroAddress(_artistAddress) { require(!newProjectsForbidden, "New projects forbidden"); uint256 projectId = _nextProjectId; projectIdToFinancials[projectId].artistAddress = _artistAddress; projects[projectId].name = _projectName; projects[projectId].paused = true; projects[projectId].maxInvocations = ONE_MILLION_UINT24; projects[projectId].projectBaseURI = defaultBaseURI; _nextProjectId = uint248(projectId) + 1; emit ProjectUpdated(projectId, FIELD_PROJECT_CREATED); } /** * @notice Forever forbids new projects from being added to this contract. */ function forbidNewProjects() external onlyAdminACL(this.forbidNewProjects.selector) { require(!newProjectsForbidden, "Already forbidden"); _forbidNewProjects(); } /** * @notice Updates name of project `_projectId` to be `_projectName`. * @param _projectId Project ID. * @param _projectName New project name. */ function updateProjectName(uint256 _projectId, string memory _projectName) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.updateProjectName.selector) onlyNonEmptyString(_projectName) { projects[_projectId].name = _projectName; emit ProjectUpdated(_projectId, FIELD_PROJECT_NAME); } /** * @notice Updates artist name for project `_projectId` to be * `_projectArtistName`. * @param _projectId Project ID. * @param _projectArtistName New artist name. */ function updateProjectArtistName( uint256 _projectId, string memory _projectArtistName ) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.updateProjectArtistName.selector) onlyNonEmptyString(_projectArtistName) { projects[_projectId].artist = _projectArtistName; emit ProjectUpdated(_projectId, FIELD_PROJECT_ARTIST_NAME); } /** * @notice Updates artist secondary market royalties for project * `_projectId` to be `_secondMarketRoyalty` percent. * This DOES NOT include the secondary market royalty percentages collected * by Art Blocks; this is only the total percentage of royalties that will * be split to artist and additionalSecondaryPayee. * @param _projectId Project ID. * @param _secondMarketRoyalty Percent of secondary sales revenue that will * be split to artist and additionalSecondaryPayee. This must be less than * or equal to ARTIST_MAX_SECONDARY_ROYALTY_PERCENTAGE percent. */ function updateProjectSecondaryMarketRoyaltyPercentage( uint256 _projectId, uint256 _secondMarketRoyalty ) external onlyArtist(_projectId) { require( _secondMarketRoyalty <= ARTIST_MAX_SECONDARY_ROYALTY_PERCENTAGE, "Max of ARTIST_MAX_SECONDARY_ROYALTY_PERCENTAGE percent" ); projectIdToFinancials[_projectId] .secondaryMarketRoyaltyPercentage = uint8(_secondMarketRoyalty); emit ProjectUpdated( _projectId, FIELD_PROJECT_SECONDARY_MARKET_ROYALTY_PERCENTAGE ); } /** * @notice Updates description of project `_projectId`. * Only artist may call when unlocked, only admin may call when locked. * @param _projectId Project ID. * @param _projectDescription New project description. */ function updateProjectDescription( uint256 _projectId, string memory _projectDescription ) external { // checks require( _projectUnlocked(_projectId) ? msg.sender == projectIdToFinancials[_projectId].artistAddress : adminACLAllowed( msg.sender, address(this), this.updateProjectDescription.selector ), "Only artist when unlocked, owner when locked" ); // effects projects[_projectId].description = _projectDescription; emit ProjectUpdated(_projectId, FIELD_PROJECT_DESCRIPTION); } /** * @notice Updates website of project `_projectId` to be `_projectWebsite`. * @param _projectId Project ID. * @param _projectWebsite New project website. * @dev It is intentionally allowed for this to be set to the empty string. */ function updateProjectWebsite( uint256 _projectId, string memory _projectWebsite ) external onlyArtist(_projectId) { projects[_projectId].website = _projectWebsite; emit ProjectUpdated(_projectId, FIELD_PROJECT_WEBSITE); } /** * @notice Updates license for project `_projectId`. * @param _projectId Project ID. * @param _projectLicense New project license. */ function updateProjectLicense( uint256 _projectId, string memory _projectLicense ) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.updateProjectLicense.selector) onlyNonEmptyString(_projectLicense) { projects[_projectId].license = _projectLicense; emit ProjectUpdated(_projectId, FIELD_PROJECT_LICENSE); } /** * @notice Updates maximum invocations for project `_projectId` to * `_maxInvocations`. Maximum invocations may only be decreased by the * artist, and must be greater than or equal to current invocations. * New projects are created with maximum invocations of 1 million by * default. * @param _projectId Project ID. * @param _maxInvocations New maximum invocations. */ function updateProjectMaxInvocations( uint256 _projectId, uint24 _maxInvocations ) external onlyArtist(_projectId) { // CHECKS Project storage project = projects[_projectId]; uint256 _invocations = project.invocations; require( (_maxInvocations < project.maxInvocations), "maxInvocations may only be decreased" ); require( _maxInvocations >= _invocations, "Only max invocations gte current invocations" ); // EFFECTS project.maxInvocations = _maxInvocations; emit ProjectUpdated(_projectId, FIELD_PROJECT_MAX_INVOCATIONS); // register completed timestamp if action completed the project if (_maxInvocations == _invocations) { _completeProject(_projectId); } } /** * @notice Adds a script to project `_projectId`. * @param _projectId Project to be updated. * @param _script Script to be added. */ function addProjectScript(uint256 _projectId, string memory _script) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.addProjectScript.selector) onlyNonEmptyString(_script) { Project storage project = projects[_projectId]; // store script in contract bytecode project.scriptBytecodeAddresses[project.scriptCount] = _script .writeToBytecode(); project.scriptCount = project.scriptCount + 1; emit ProjectUpdated(_projectId, FIELD_PROJECT_SCRIPT); } /** * @notice Updates script for project `_projectId` at script ID `_scriptId`. * @param _projectId Project to be updated. * @param _scriptId Script ID to be updated. * @param _script The updated script value. */ function updateProjectScript( uint256 _projectId, uint256 _scriptId, string memory _script ) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.updateProjectScript.selector) onlyNonEmptyString(_script) { Project storage project = projects[_projectId]; require(_scriptId < project.scriptCount, "scriptId out of range"); // purge old contract bytecode contract from the blockchain state project.scriptBytecodeAddresses[_scriptId].purgeBytecode(); // store script in contract bytecode, replacing reference address from // the contract that no longer exists with the newly created one project.scriptBytecodeAddresses[_scriptId] = _script.writeToBytecode(); emit ProjectUpdated(_projectId, FIELD_PROJECT_SCRIPT); } /** * @notice Removes last script from project `_projectId`. * @param _projectId Project to be updated. */ function removeProjectLastScript(uint256 _projectId) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.removeProjectLastScript.selector) { Project storage project = projects[_projectId]; require(project.scriptCount > 0, "there are no scripts to remove"); // purge old contract bytecode contract from the blockchain state project.scriptBytecodeAddresses[project.scriptCount - 1].purgeBytecode(); // delete reference to contract address that no longer exists delete project.scriptBytecodeAddresses[project.scriptCount - 1]; unchecked { project.scriptCount = project.scriptCount - 1; } emit ProjectUpdated(_projectId, FIELD_PROJECT_SCRIPT); } /** * @notice Updates script type for project `_projectId`. * @param _projectId Project to be updated. * @param _scriptTypeAndVersion Script type and version e.g. "[email protected]", * as bytes32 encoded string. */ function updateProjectScriptType( uint256 _projectId, bytes32 _scriptTypeAndVersion ) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.updateProjectScriptType.selector) { Project storage project = projects[_projectId]; // require exactly one @ symbol in _scriptTypeAndVersion require( _scriptTypeAndVersion.containsExactCharacterQty( AT_CHARACTER_CODE, uint8(1) ), "must contain exactly one @" ); project.scriptTypeAndVersion = _scriptTypeAndVersion; emit ProjectUpdated(_projectId, FIELD_PROJECT_SCRIPT_TYPE); } /** * @notice Updates project's aspect ratio. * @param _projectId Project to be updated. * @param _aspectRatio Aspect ratio to be set. Intended to be string in the * format of a decimal, e.g. "1" for square, "1.77777778" for 16:9, etc., * allowing for a maximum of 10 digits and one (optional) decimal separator. */ function updateProjectAspectRatio( uint256 _projectId, string memory _aspectRatio ) external onlyUnlocked(_projectId) onlyArtistOrAdminACL(_projectId, this.updateProjectAspectRatio.selector) onlyNonEmptyString(_aspectRatio) { // Perform more detailed input validation for aspect ratio. bytes memory aspectRatioBytes = bytes(_aspectRatio); uint256 bytesLength = aspectRatioBytes.length; require(bytesLength <= 11, "Aspect ratio format too long"); bool hasSeenDecimalSeparator = false; bool hasSeenNumber = false; for (uint256 i; i < bytesLength; i++) { bytes1 character = aspectRatioBytes[i]; // Allow as many #s as desired. if (character >= 0x30 && character <= 0x39) { // 9-0 // We need to ensure there is at least 1 `9-0` occurrence. hasSeenNumber = true; continue; } if (character == 0x2E) { // . // Allow no more than 1 `.` occurrence. if (!hasSeenDecimalSeparator) { hasSeenDecimalSeparator = true; continue; } } revert("Improperly formatted aspect ratio"); } require(hasSeenNumber, "Aspect ratio has no numbers"); projects[_projectId].aspectRatio = _aspectRatio; emit ProjectUpdated(_projectId, FIELD_PROJECT_ASPECT_RATIO); } /** * @notice Updates base URI for project `_projectId` to `_newBaseURI`. * This is the controlling base URI for all tokens in the project. The * contract-level defaultBaseURI is only used when initializing new * projects. * @param _projectId Project to be updated. * @param _newBaseURI New base URI. */ function updateProjectBaseURI(uint256 _projectId, string memory _newBaseURI) external onlyArtist(_projectId) onlyNonEmptyString(_newBaseURI) { projects[_projectId].projectBaseURI = _newBaseURI; emit ProjectUpdated(_projectId, FIELD_PROJECT_BASE_URI); } /** * @notice Updates default base URI to `_defaultBaseURI`. The * contract-level defaultBaseURI is only used when initializing new * projects. Token URIs are determined by their project's `projectBaseURI`. * @param _defaultBaseURI New default base URI. */ function updateDefaultBaseURI(string memory _defaultBaseURI) external onlyAdminACL(this.updateDefaultBaseURI.selector) onlyNonEmptyString(_defaultBaseURI) { _updateDefaultBaseURI(_defaultBaseURI); } /** * @notice Next project ID to be created on this contract. * @return uint256 Next project ID. */ function nextProjectId() external view returns (uint256) { return _nextProjectId; } /** * @notice Returns token hash for token ID `_tokenId`. Returns null if hash * has not been set. * @param _tokenId Token ID to be queried. * @return bytes32 Token hash. * @dev token hash is the keccak256 hash of the stored hash seed */ function tokenIdToHash(uint256 _tokenId) external view returns (bytes32) { bytes12 _hashSeed = _ownersAndHashSeeds[_tokenId].hashSeed; if (_hashSeed == 0) { return 0; } return keccak256(abi.encode(_hashSeed)); } /** * @notice View function returning Art Blocks portion of primary sales, in * percent. * @return uint256 Art Blocks portion of primary sales, in percent. */ function artblocksPrimarySalesPercentage() external view returns (uint256) { return _artblocksPrimarySalesPercentage; } /** * @notice View function returning Artist's address for project * `_projectId`. * @param _projectId Project ID to be queried. * @return address Artist's address. */ function projectIdToArtistAddress(uint256 _projectId) external view returns (address payable) { return projectIdToFinancials[_projectId].artistAddress; } /** * @notice View function returning Artist's secondary market royalty * percentage for project `_projectId`. * This does not include Art Blocks portion of secondary market royalties. * @param _projectId Project ID to be queried. * @return uint256 Artist's secondary market royalty percentage. */ function projectIdToSecondaryMarketRoyaltyPercentage(uint256 _projectId) external view returns (uint256) { return projectIdToFinancials[_projectId].secondaryMarketRoyaltyPercentage; } /** * @notice View function returning Artist's additional payee address for * primary sales, for project `_projectId`. * @param _projectId Project ID to be queried. * @return address Artist's additional payee address for primary sales. */ function projectIdToAdditionalPayeePrimarySales(uint256 _projectId) external view returns (address payable) { return projectIdToFinancials[_projectId].additionalPayeePrimarySales; } /** * @notice View function returning Artist's additional payee primary sales * percentage, for project `_projectId`. * @param _projectId Project ID to be queried. * @return uint256 Artist's additional payee primary sales percentage. */ function projectIdToAdditionalPayeePrimarySalesPercentage( uint256 _projectId ) external view returns (uint256) { return projectIdToFinancials[_projectId] .additionalPayeePrimarySalesPercentage; } /** * @notice View function returning Artist's additional payee address for * secondary sales, for project `_projectId`. * @param _projectId Project ID to be queried. * @return address payable Artist's additional payee address for secondary * sales. */ function projectIdToAdditionalPayeeSecondarySales(uint256 _projectId) external view returns (address payable) { return projectIdToFinancials[_projectId].additionalPayeeSecondarySales; } /** * @notice View function returning Artist's additional payee secondary * sales percentage, for project `_projectId`. * @param _projectId Project ID to be queried. * @return uint256 Artist's additional payee secondary sales percentage. */ function projectIdToAdditionalPayeeSecondarySalesPercentage( uint256 _projectId ) external view returns (uint256) { return projectIdToFinancials[_projectId] .additionalPayeeSecondarySalesPercentage; } /** * @notice Returns project details for project `_projectId`. * @param _projectId Project to be queried. * @return projectName Name of project * @return artist Artist of project * @return description Project description * @return website Project website * @return license Project license * @dev this function was named projectDetails prior to V3 core contract. */ function projectDetails(uint256 _projectId) external view returns ( string memory projectName, string memory artist, string memory description, string memory website, string memory license ) { Project storage project = projects[_projectId]; projectName = project.name; artist = project.artist; description = project.description; website = project.website; license = project.license; } /** * @notice Returns project state data for project `_projectId`. * @param _projectId Project to be queried * @return invocations Current number of invocations * @return maxInvocations Maximum allowed invocations * @return active Boolean representing if project is currently active * @return paused Boolean representing if project is paused * @return completedTimestamp zero if project not complete, otherwise * timestamp of project completion. * @return locked Boolean representing if project is locked * @dev price and currency info are located on minter contracts */ function projectStateData(uint256 _projectId) external view returns ( uint256 invocations, uint256 maxInvocations, bool active, bool paused, uint256 completedTimestamp, bool locked ) { Project storage project = projects[_projectId]; invocations = project.invocations; maxInvocations = project.maxInvocations; active = project.active; paused = project.paused; completedTimestamp = project.completedTimestamp; locked = !_projectUnlocked(_projectId); } /** * @notice Returns artist payment information for project `_projectId`. * @param _projectId Project to be queried * @return artistAddress Project Artist's address * @return additionalPayeePrimarySales Additional payee address for primary * sales * @return additionalPayeePrimarySalesPercentage Percentage of artist revenue * to be sent to the additional payee address for primary sales * @return additionalPayeeSecondarySales Additional payee address for secondary * sales royalties * @return additionalPayeeSecondarySalesPercentage Percentage of artist revenue * to be sent to the additional payee address for secondary sales royalties * @return secondaryMarketRoyaltyPercentage Royalty percentage to be sent to * combination of artist and additional payee. This does not include the * platform's percentage of secondary sales royalties, which is defined by * `artblocksSecondarySalesBPS`. */ function projectArtistPaymentInfo(uint256 _projectId) external view returns ( address artistAddress, address additionalPayeePrimarySales, uint256 additionalPayeePrimarySalesPercentage, address additionalPayeeSecondarySales, uint256 additionalPayeeSecondarySalesPercentage, uint256 secondaryMarketRoyaltyPercentage ) { ProjectFinance storage projectFinance = projectIdToFinancials[ _projectId ]; artistAddress = projectFinance.artistAddress; additionalPayeePrimarySales = projectFinance .additionalPayeePrimarySales; additionalPayeePrimarySalesPercentage = projectFinance .additionalPayeePrimarySalesPercentage; additionalPayeeSecondarySales = projectFinance .additionalPayeeSecondarySales; additionalPayeeSecondarySalesPercentage = projectFinance .additionalPayeeSecondarySalesPercentage; secondaryMarketRoyaltyPercentage = projectFinance .secondaryMarketRoyaltyPercentage; } /** * @notice Returns script information for project `_projectId`. * @param _projectId Project to be queried. * @return scriptTypeAndVersion Project's script type and version * (e.g. "p5js(atSymbol)1.0.0") * @return aspectRatio Aspect ratio of project (e.g. "1" for square, * "1.77777778" for 16:9, etc.) * @return scriptCount Count of scripts for project */ function projectScriptDetails(uint256 _projectId) external view returns ( string memory scriptTypeAndVersion, string memory aspectRatio, uint256 scriptCount ) { Project storage project = projects[_projectId]; scriptTypeAndVersion = project.scriptTypeAndVersion.toString(); aspectRatio = project.aspectRatio; scriptCount = project.scriptCount; } /** * @notice Returns address with bytecode containing project script for * project `_projectId` at script index `_index`. */ function projectScriptBytecodeAddressByIndex( uint256 _projectId, uint256 _index ) external view returns (address) { return projects[_projectId].scriptBytecodeAddresses[_index]; } /** * @notice Returns script for project `_projectId` at script index `_index`. * @param _projectId Project to be queried. * @param _index Index of script to be queried. */ function projectScriptByIndex(uint256 _projectId, uint256 _index) external view returns (string memory) { Project storage project = projects[_projectId]; // If trying to access an out-of-index script, return the empty string. if (_index >= project.scriptCount) { return ""; } return project.scriptBytecodeAddresses[_index].readFromBytecode(); } /** * @notice Returns base URI for project `_projectId`. * @param _projectId Project to be queried. * @return projectBaseURI Base URI for project */ function projectURIInfo(uint256 _projectId) external view returns (string memory projectBaseURI) { projectBaseURI = projects[_projectId].projectBaseURI; } /** * @notice Backwards-compatible (pre-V3) function returning if `_minter` is * minterContract. * @param _minter Address to be queried. * @return bool Boolean representing if `_minter` is minterContract. */ function isMintWhitelisted(address _minter) external view returns (bool) { return (minterContract == _minter); } /** * @notice Gets qty of randomizers in history of all randomizers used by * this core contract. If a randomizer is switched away from then back to, * it will show up in the history twice. * @return randomizerHistoryCount Count of randomizers in history */ function numHistoricalRandomizers() external view returns (uint256) { return _historicalRandomizerAddresses.length; } /** * @notice Gets address of randomizer at index `_index` in history of all * randomizers used by this core contract. Index is zero-based. * @param _index Historical index of randomizer to be queried. * @return randomizerAddress Address of randomizer at index `_index`. * @dev If a randomizer is switched away from and then switched back to, it * will show up in the history twice. */ function getHistoricalRandomizerAt(uint256 _index) external view returns (address) { require( _index < _historicalRandomizerAddresses.length, "Index out of bounds" ); return _historicalRandomizerAddresses[_index]; } /** * @notice Backwards-compatible (pre-V3) function returning Art Blocks * primary sales payment address (now called artblocksPrimarySalesAddress). * @return address payable Art Blocks primary sales payment address */ function artblocksAddress() external view returns (address payable) { return artblocksPrimarySalesAddress; } /** * @notice Backwards-compatible (pre-V3) function returning Art Blocks * primary sales percentage (now called artblocksPrimarySalesPercentage). * @return uint256 Art Blocks primary sales percentage */ function artblocksPercentage() external view returns (uint256) { return _artblocksPrimarySalesPercentage; } /** * @notice Backwards-compatible (pre-V3) function. * Gets artist + artist's additional payee royalty data for token ID `_tokenId`. * WARNING: Does not include Art Blocks portion of royalties. * @param _tokenId Token ID to be queried. * @return artistAddress Artist's payment address * @return additionalPayee Additional payee's payment address * @return additionalPayeePercentage Percentage of artist revenue * to be sent to the additional payee's address * @return royaltyFeeByID Total royalty percentage to be sent to * combination of artist and additional payee * @dev Does not include Art Blocks portion of royalties. */ function getRoyaltyData(uint256 _tokenId) external view returns ( address artistAddress, address additionalPayee, uint256 additionalPayeePercentage, uint256 royaltyFeeByID ) { uint256 projectId = tokenIdToProjectId(_tokenId); ProjectFinance storage projectFinance = projectIdToFinancials[ projectId ]; artistAddress = projectFinance.artistAddress; additionalPayee = projectFinance.additionalPayeeSecondarySales; additionalPayeePercentage = projectFinance .additionalPayeeSecondarySalesPercentage; royaltyFeeByID = projectFinance.secondaryMarketRoyaltyPercentage; } /** * @notice Gets royalty Basis Points (BPS) for token ID `_tokenId`. * This conforms to the IManifold interface designated in the Royalty * Registry's RoyaltyEngineV1.sol contract. * ref: https://github.com/manifoldxyz/royalty-registry-solidity * @param _tokenId Token ID to be queried. * @return recipients Array of royalty payment recipients * @return bps Array of Basis Points (BPS) allocated to each recipient, * aligned by index. * @dev reverts if invalid _tokenId * @dev only returns recipients that have a non-zero BPS allocation */ function getRoyalties(uint256 _tokenId) external view onlyValidTokenId(_tokenId) returns (address payable[] memory recipients, uint256[] memory bps) { // initialize arrays with maximum potential length recipients = new address payable[](3); bps = new uint256[](3); uint256 projectId = tokenIdToProjectId(_tokenId); ProjectFinance storage projectFinance = projectIdToFinancials[ projectId ]; // load values into memory uint256 royaltyPercentageForArtistAndAdditional = projectFinance .secondaryMarketRoyaltyPercentage; uint256 additionalPayeePercentage = projectFinance .additionalPayeeSecondarySalesPercentage; // calculate BPS = percentage * 100 uint256 artistBPS = (ONE_HUNDRED - additionalPayeePercentage) * royaltyPercentageForArtistAndAdditional; uint256 additionalBPS = additionalPayeePercentage * royaltyPercentageForArtistAndAdditional; uint256 artblocksBPS = artblocksSecondarySalesBPS; // populate arrays uint256 payeeCount; if (artistBPS > 0) { recipients[payeeCount] = projectFinance.artistAddress; bps[payeeCount++] = artistBPS; } if (additionalBPS > 0) { recipients[payeeCount] = projectFinance .additionalPayeeSecondarySales; bps[payeeCount++] = additionalBPS; } if (artblocksBPS > 0) { recipients[payeeCount] = artblocksSecondarySalesAddress; bps[payeeCount++] = artblocksBPS; } // trim arrays if necessary if (3 > payeeCount) { assembly { let decrease := sub(3, payeeCount) mstore(recipients, sub(mload(recipients), decrease)) mstore(bps, sub(mload(bps), decrease)) } } return (recipients, bps); } /** * @notice View function that returns appropriate revenue splits between * different Art Blocks, Artist, and Artist's additional primary sales * payee given a sale price of `_price` on project `_projectId`. * This always returns three revenue amounts and three addresses, but if a * revenue is zero for either Artist or additional payee, the corresponding * address returned will also be null (for gas optimization). * Does not account for refund if user overpays for a token (minter should * handle a refund of the difference, if appropriate). * Some minters may have alternative methods of splitting payments, in * which case they should implement their own payment splitting logic. * @param _projectId Project ID to be queried. * @param _price Sale price of token. * @return artblocksRevenue_ amount of revenue to be sent to Art Blocks * @return artblocksAddress_ address to send Art Blocks revenue to * @return artistRevenue_ amount of revenue to be sent to Artist * @return artistAddress_ address to send Artist revenue to. Will be null * if no revenue is due to artist (gas optimization). * @return additionalPayeePrimaryRevenue_ amount of revenue to be sent to * additional payee for primary sales * @return additionalPayeePrimaryAddress_ address to send Artist's * additional payee for primary sales revenue to. Will be null if no * revenue is due to additional payee for primary sales (gas optimization). * @dev this always returns three addresses and three revenues, but if the * revenue is zero, the corresponding address will be address(0). It is up * to the contract performing the revenue split to handle this * appropriately. */ function getPrimaryRevenueSplits(uint256 _projectId, uint256 _price) external view returns ( uint256 artblocksRevenue_, address payable artblocksAddress_, uint256 artistRevenue_, address payable artistAddress_, uint256 additionalPayeePrimaryRevenue_, address payable additionalPayeePrimaryAddress_ ) { ProjectFinance storage projectFinance = projectIdToFinancials[ _projectId ]; // calculate revenues artblocksRevenue_ = (_price * uint256(_artblocksPrimarySalesPercentage)) / ONE_HUNDRED; uint256 projectFunds; unchecked { // artblocksRevenue_ is always <=25, so guaranteed to never underflow projectFunds = _price - artblocksRevenue_; } additionalPayeePrimaryRevenue_ = (projectFunds * projectFinance.additionalPayeePrimarySalesPercentage) / ONE_HUNDRED; unchecked { // projectIdToAdditionalPayeePrimarySalesPercentage is always // <=100, so guaranteed to never underflow artistRevenue_ = projectFunds - additionalPayeePrimaryRevenue_; } // set addresses from storage artblocksAddress_ = artblocksPrimarySalesAddress; if (artistRevenue_ > 0) { artistAddress_ = projectFinance.artistAddress; } if (additionalPayeePrimaryRevenue_ > 0) { additionalPayeePrimaryAddress_ = projectFinance .additionalPayeePrimarySales; } } /** * @notice Backwards-compatible (pre-V3) getter returning contract admin * @return address Address of contract admin (same as owner) */ function admin() external view returns (address) { return owner(); } /** * @notice Gets the project ID for a given `_tokenId`. * @param _tokenId Token ID to be queried. * @return _projectId Project ID for given `_tokenId`. */ function tokenIdToProjectId(uint256 _tokenId) public pure returns (uint256 _projectId) { return _tokenId / ONE_MILLION; } /** * @notice Convenience function that returns whether `_sender` is allowed * to call function with selector `_selector` on contract `_contract`, as * determined by this contract's current Admin ACL contract. Expected use * cases include minter contracts checking if caller is allowed to call * admin-gated functions on minter contracts. * @param _sender Address of the sender calling function with selector * `_selector` on contract `_contract`. * @param _contract Address of the contract being called by `_sender`. * @param _selector Function selector of the function being called by * `_sender`. * @return bool Whether `_sender` is allowed to call function with selector * `_selector` on contract `_contract`. * @dev assumes the Admin ACL contract is the owner of this contract, which * is expected to always be true. * @dev adminACLContract is expected to either be null address (if owner * has renounced ownership), or conform to IAdminACLV0 interface. Check for * null address first to avoid revert when admin has renounced ownership. */ function adminACLAllowed( address _sender, address _contract, bytes4 _selector ) public returns (bool) { return owner() != address(0) && adminACLContract.allowed(_sender, _contract, _selector); } /** * @notice Returns contract owner. Set to deployer's address by default on * contract deployment. * @return address Address of contract owner. * @dev ref: https://docs.openzeppelin.com/contracts/4.x/api/access#Ownable * @dev owner role was called `admin` prior to V3 core contract */ function owner() public view override(Ownable, IGenArt721CoreContractV3) returns (address) { return Ownable.owner(); } /** * @notice Gets token URI for token ID `_tokenId`. * @param _tokenId Token ID to be queried. * @return string URI of token ID `_tokenId`. * @dev token URIs are the concatenation of the project base URI and the * token ID. */ function tokenURI(uint256 _tokenId) public view override onlyValidTokenId(_tokenId) returns (string memory) { string memory _projectBaseURI = projects[tokenIdToProjectId(_tokenId)] .projectBaseURI; return string.concat(_projectBaseURI, _tokenId.toString()); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IManifold).interfaceId || super.supportsInterface(interfaceId); } /** * @notice Forbids new projects from being created * @dev only performs operation and emits event if contract is not already * forbidding new projects. */ function _forbidNewProjects() internal { if (!newProjectsForbidden) { newProjectsForbidden = true; emit PlatformUpdated(FIELD_NEW_PROJECTS_FORBIDDEN); } } /** * @notice Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. * @param newOwner New owner. * @dev owner role was called `admin` prior to V3 core contract. * @dev Overrides and wraps OpenZeppelin's _transferOwnership function to * also update adminACLContract for improved introspection. */ function _transferOwnership(address newOwner) internal override { Ownable._transferOwnership(newOwner); adminACLContract = IAdminACLV0(newOwner); } /** * @notice Updates Art Blocks payment address to `_artblocksPrimarySalesAddress`. * @param _artblocksPrimarySalesAddress New Art Blocks payment address. * @dev Note that this method does not check that the input address is * not `address(0)`, as it is expected that callers of this method should * perform input validation where applicable. */ function _updateArtblocksPrimarySalesAddress( address _artblocksPrimarySalesAddress ) internal { artblocksPrimarySalesAddress = payable(_artblocksPrimarySalesAddress); emit PlatformUpdated(FIELD_ARTBLOCKS_PRIMARY_SALES_ADDRESS); } /** * @notice Updates Art Blocks secondary sales royalty payment address to * `_artblocksSecondarySalesAddress`. * @param _artblocksSecondarySalesAddress New Art Blocks secondary sales * payment address. * @dev Note that this method does not check that the input address is * not `address(0)`, as it is expected that callers of this method should * perform input validation where applicable. */ function _updateArtblocksSecondarySalesAddress( address _artblocksSecondarySalesAddress ) internal { artblocksSecondarySalesAddress = payable( _artblocksSecondarySalesAddress ); emit PlatformUpdated(FIELD_ARTBLOCKS_SECONDARY_SALES_ADDRESS); } /** * @notice Updates randomizer address to `_randomizerAddress`. * @param _randomizerAddress New randomizer address. * @dev Note that this method does not check that the input address is * not `address(0)`, as it is expected that callers of this method should * perform input validation where applicable. */ function _updateRandomizerAddress(address _randomizerAddress) internal { randomizerContract = IRandomizerV2(_randomizerAddress); // populate historical randomizer array _historicalRandomizerAddresses.push(_randomizerAddress); emit PlatformUpdated(FIELD_RANDOMIZER_ADDRESS); } /** * @notice Updates default base URI to `_defaultBaseURI`. * When new projects are added, their `projectBaseURI` is automatically * initialized to `_defaultBaseURI`. * @param _defaultBaseURI New default base URI. * @dev Note that this method does not check that the input string is not * the empty string, as it is expected that callers of this method should * perform input validation where applicable. */ function _updateDefaultBaseURI(string memory _defaultBaseURI) internal { defaultBaseURI = _defaultBaseURI; emit PlatformUpdated(FIELD_DEFAULT_BASE_URI); } /** * @notice Internal function to complete a project. * @param _projectId Project ID to be completed. */ function _completeProject(uint256 _projectId) internal { projects[_projectId].completedTimestamp = uint64(block.timestamp); emit ProjectUpdated(_projectId, FIELD_PROJECT_COMPLETED); } /** * @notice Internal function that returns whether a project is unlocked. * Projects automatically lock four weeks after they are completed. * Projects are considered completed when they have been invoked the * maximum number of times. * @param _projectId Project ID to be queried. * @return bool true if project is unlocked, false otherwise. * @dev This also enforces that the `_projectId` passed in is valid. */ function _projectUnlocked(uint256 _projectId) internal view onlyValidProjectId(_projectId) returns (bool) { uint256 projectCompletedTimestamp = projects[_projectId] .completedTimestamp; bool projectOpen = projectCompletedTimestamp == 0; return projectOpen || (block.timestamp - projectCompletedTimestamp < FOUR_WEEKS_IN_SECONDS); } }
// SPDX-License-Identifier: LGPL-3.0-only // Creatd By: Art Blocks Inc. pragma solidity ^0.8.0; import "./IGenArt721CoreContractV3.sol"; interface IRandomizerV2 { // The core contract that may interact with this randomizer contract. function genArt721Core() external view returns (IGenArt721CoreContractV3); // When a core contract calls this, it can be assured that the randomizer // will set a bytes32 hash for tokenId `_tokenId` on the core contract. function assignTokenHash(uint256 _tokenId) external; }
// SPDX-License-Identifier: LGPL-3.0-only // Created By: Art Blocks Inc. pragma solidity ^0.8.0; interface IAdminACLV0 { /** * @notice Token ID `_tokenId` minted to `_to`. * @param previousSuperAdmin The previous superAdmin address. * @param newSuperAdmin The new superAdmin address. * @param genArt721CoreAddressesToUpdate Array of genArt721Core * addresses to update to the new superAdmin, for indexing purposes only. */ event SuperAdminTransferred( address indexed previousSuperAdmin, address indexed newSuperAdmin, address[] genArt721CoreAddressesToUpdate ); /// Type of the Admin ACL contract, e.g. "AdminACLV0" function AdminACLType() external view returns (string memory); /// super admin address function superAdmin() external view returns (address); /** * @notice Calls transferOwnership on other contract from this contract. * This is useful for updating to a new AdminACL contract. * @dev this function should be gated to only superAdmin-like addresses. */ function transferOwnershipOn(address _contract, address _newAdminACL) external; /** * @notice Calls renounceOwnership on other contract from this contract. * @dev this function should be gated to only superAdmin-like addresses. */ function renounceOwnershipOn(address _contract) external; /** * @notice Checks if sender `_sender` is allowed to call function with selector * `_selector` on contract `_contract`. */ function allowed( address _sender, address _contract, bytes4 _selector ) external returns (bool); }
// SPDX-License-Identifier: LGPL-3.0-only // Created By: Art Blocks Inc. pragma solidity ^0.8.0; import "./IAdminACLV0.sol"; /// use the Royalty Registry's IManifold interface for token royalties import "./IManifold.sol"; interface IGenArt721CoreContractV3 is IManifold { /** * @notice Token ID `_tokenId` minted to `_to`. */ event Mint(address indexed _to, uint256 indexed _tokenId); /** * @notice currentMinter updated to `_currentMinter`. * @dev Implemented starting with V3 core */ event MinterUpdated(address indexed _currentMinter); /** * @notice Platform updated on bytes32-encoded field `_field`. */ event PlatformUpdated(bytes32 indexed _field); /** * @notice Project ID `_projectId` updated on bytes32-encoded field * `_update`. */ event ProjectUpdated(uint256 indexed _projectId, bytes32 indexed _update); event ProposedArtistAddressesAndSplits( uint256 indexed _projectId, address _artistAddress, address _additionalPayeePrimarySales, uint256 _additionalPayeePrimarySalesPercentage, address _additionalPayeeSecondarySales, uint256 _additionalPayeeSecondarySalesPercentage ); event AcceptedArtistAddressesAndSplits(uint256 indexed _projectId); // version and type of the core contract // coreVersion is a string of the form "0.x.y" function coreVersion() external view returns (string memory); // coreType is a string of the form "GenArt721CoreV3" function coreType() external view returns (string memory); // owner (pre-V3 was named admin) of contract // this is expected to be an Admin ACL contract for V3 function owner() external view returns (address); // Admin ACL contract for V3, will be at the address owner() function adminACLContract() external returns (IAdminACLV0); // backwards-compatible (pre-V3) admin - equal to owner() function admin() external view returns (address); /** * Function determining if _sender is allowed to call function with * selector _selector on contract `_contract`. Intended to be used with * peripheral contracts such as minters, as well as internally by the * core contract itself. */ function adminACLAllowed( address _sender, address _contract, bytes4 _selector ) external returns (bool); // getter function of public variable function nextProjectId() external view returns (uint256); // getter function of public mapping function tokenIdToProjectId(uint256 tokenId) external view returns (uint256 projectId); // @dev this is not available in V0 function isMintWhitelisted(address minter) external view returns (bool); function projectIdToArtistAddress(uint256 _projectId) external view returns (address payable); function projectIdToAdditionalPayeePrimarySales(uint256 _projectId) external view returns (address payable); function projectIdToAdditionalPayeePrimarySalesPercentage( uint256 _projectId ) external view returns (uint256); // @dev new function in V3 function getPrimaryRevenueSplits(uint256 _projectId, uint256 _price) external view returns ( uint256 artblocksRevenue_, address payable artblocksAddress_, uint256 artistRevenue_, address payable artistAddress_, uint256 additionalPayeePrimaryRevenue_, address payable additionalPayeePrimaryAddress_ ); // @dev new function in V3 function projectStateData(uint256 _projectId) external view returns ( uint256 invocations, uint256 maxInvocations, bool active, bool paused, uint256 completedTimestamp, bool locked ); // @dev Art Blocks primary sales payment address function artblocksPrimarySalesAddress() external view returns (address payable); /** * @notice Backwards-compatible (pre-V3) function returning Art Blocks * primary sales payment address (now called artblocksPrimarySalesAddress). */ function artblocksAddress() external view returns (address payable); // @dev Percentage of primary sales allocated to Art Blocks function artblocksPrimarySalesPercentage() external view returns (uint256); /** * @notice Backwards-compatible (pre-V3) function returning Art Blocks * primary sales percentage (now called artblocksPrimarySalesPercentage). */ function artblocksPercentage() external view returns (uint256); // @dev Art Blocks secondary sales royalties payment address function artblocksSecondarySalesAddress() external view returns (address payable); // @dev Basis points of secondary sales allocated to Art Blocks function artblocksSecondarySalesBPS() external view returns (uint256); // function to set a token's hash (must be guarded) function setTokenHash_8PT(uint256 _tokenId, bytes32 _hash) external; // @dev gas-optimized signature in V3 for `mint` function mint_Ecf( address _to, uint256 _projectId, address _by ) external returns (uint256 tokenId); /** * @notice Backwards-compatible (pre-V3) function that gets artist + * artist's additional payee royalty data for token ID `_tokenId`. * WARNING: Does not include Art Blocks portion of royalties. */ function getRoyaltyData(uint256 _tokenId) external view returns ( address artistAddress, address additionalPayee, uint256 additionalPayeePercentage, uint256 royaltyFeeByID ); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @dev Royalty Registry interface, used to support the Royalty Registry. /// @dev Source: https://github.com/manifoldxyz/royalty-registry-solidity/blob/main/contracts/specs/IManifold.sol /// @author: manifold.xyz /** * @dev Royalty interface for creator core classes */ interface IManifold { /** * @dev Get royalites of a token. Returns list of receivers and basisPoints * * bytes4(keccak256('getRoyalties(uint256)')) == 0xbb3bafd6 * * => 0xbb3bafd6 = 0xbb3bafd6 */ function getRoyalties(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory); }
// 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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "@openzeppelin-4.7/contracts/token/ERC721/IERC721.sol"; import "@openzeppelin-4.7/contracts/token/ERC721/IERC721Receiver.sol"; import "@openzeppelin-4.7/contracts/token/ERC721/extensions/IERC721Metadata.sol"; import "@openzeppelin-4.7/contracts/utils/Address.sol"; import "@openzeppelin-4.7/contracts/utils/Context.sol"; import "@openzeppelin-4.7/contracts/utils/Strings.sol"; import "@openzeppelin-4.7/contracts/utils/introspection/ERC165.sol"; /** * @dev Forked version of the OpenZeppelin v4.7.1 ERC721 contract. Utilizes a * struct to pack owner and hash seed into a single storage slot. * --------------------- * @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 ERC721_PackedHashSeed is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; /// struct to pack a token owner and hash seed into same storage slot struct OwnerAndHashSeed { // 20 bytes for address of token's owner address owner; // remaining 12 bytes allocated to token hash seed bytes12 hashSeed; } /// mapping of token ID to OwnerAndHashSeed /// @dev visibility internal so inheriting contracts can access mapping(uint256 => OwnerAndHashSeed) internal _ownersAndHashSeeds; // 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. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual 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 = _ownersAndHashSeeds[tokenId].owner; 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 = ERC721_PackedHashSeed.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 _ownersAndHashSeeds[tokenId].owner != 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 = ERC721_PackedHashSeed.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; _ownersAndHashSeeds[tokenId].owner = 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 = ERC721_PackedHashSeed.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _ownersAndHashSeeds[tokenId].owner; 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( ERC721_PackedHashSeed.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; _ownersAndHashSeeds[tokenId].owner = 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(ERC721_PackedHashSeed.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 IERC721Receiver(to).onERC721Received( _msgSender(), from, tokenId, data ) returns (bytes4 retval) { return retval == IERC721Receiver.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 {} }
// SPDX-License-Identifier: LGPL-3.0-only // Created By: Art Blocks Inc. pragma solidity ^0.8.0; /** * @title Art Blocks Script Storage Library * @notice Utilize contract bytecode as persistant storage for large chunks of script string data. * * @author Art Blocks Inc. * @author Modified from 0xSequence (https://github.com/0xsequence/sstore2/blob/master/contracts/SSTORE2.sol) * @author Modified from Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SSTORE2.sol) * * @dev Compared to the above two rerferenced libraries, this contracts-as-storage implementation makes a few * notably different design decisions: * - uses the `string` data type for input/output on reads, rather than speaking in bytes directly * - exposes "delete" functionality, allowing no-longer-used storage to be purged from chain state * - stores the "writer" address (library user) in the deployed contract bytes, which is useful for both: * a) providing necessary information for safe deletion; and * b) allowing this to be introspected on-chain * Also, given that much of this library is written in assembly, this library makes use of a slightly * different convention (when compared to the rest of the Art Blocks smart contract repo) around * pre-defining return values in some cases in order to simplify need to directly memory manage these * return values. */ library BytecodeStorage { //---------------------------------------------------------------------------------------------------------------// // Starting Index | Size | Ending Index | Description // //---------------------------------------------------------------------------------------------------------------// // 0 | N/A | 0 | // // 0 | 72 | 72 | the bytes of the gated-cleanup-logic allowing for `selfdestruct`ion // // 72 | 32 | 104 | the 32 bytes for storing the deploying contract's (0-padded) address // //---------------------------------------------------------------------------------------------------------------// // Define the offset for where the "logic bytes" end, and the "data bytes" begin. Note that this is a manually // calculated value, and must be updated if the above table is changed. It is expected that tests will fail // loudly if these values are not updated in-step with eachother. uint256 internal constant DATA_OFFSET = 104; uint256 internal constant ADDRESS_OFFSET = 72; /*////////////////////////////////////////////////////////////// WRITE LOGIC //////////////////////////////////////////////////////////////*/ /** * @notice Write a string to contract bytecode * @param _data string to be written to contract * @return address_ address of deployed contract with bytecode containing concat(gated-cleanup-logic, data) */ function writeToBytecode(string memory _data) internal returns (address address_) { // prefix bytecode with bytes memory creationCode = abi.encodePacked( //---------------------------------------------------------------------------------------------------------------// // Opcode | Opcode + Arguments | Description | Stack View // //---------------------------------------------------------------------------------------------------------------// // (0) creation code returns all code in the contract except for the first 11 (0B in hex) bytes, as these 11 // bytes are the creation code itself which we do not want to store in the deployed storage contract result //---------------------------------------------------------------------------------------------------------------// // 0x60 | 0x60_0B | PUSH1 11 | codeOffset // // 0x59 | 0x59 | MSIZE | 0 codeOffset // // 0x81 | 0x81 | DUP2 | codeOffset 0 codeOffset // // 0x38 | 0x38 | CODESIZE | codeSize codeOffset 0 codeOffset // // 0x03 | 0x03 | SUB | (codeSize - codeOffset) 0 codeOffset // // 0x80 | 0x80 | DUP | (codeSize - codeOffset) (codeSize - codeOffset) 0 codeOffset // // 0x92 | 0x92 | SWAP3 | codeOffset (codeSize - codeOffset) 0 (codeSize - codeOffset) // // 0x59 | 0x59 | MSIZE | 0 codeOffset (codeSize - codeOffset) 0 (codeSize - codeOffset) // // 0x39 | 0x39 | CODECOPY | 0 (codeSize - codeOffset) // // 0xf3 | 0xf3 | RETURN | // //---------------------------------------------------------------------------------------------------------------// // (11 bytes) hex"60_0B_59_81_38_03_80_92_59_39_F3", //---------------------------------------------------------------------------------------------------------------// // Opcode | Opcode + Arguments | Description | Stack View // //---------------------------------------------------------------------------------------------------------------// // (1a) conditional logic for determing purge-gate (only the bytecode contract deployer can `selfdestruct`) //---------------------------------------------------------------------------------------------------------------// // 0x60 | 0x60_20 | PUSH1 32 | 32 // // 0x60 | 0x60_48 | PUSH1 72 (*) | contractOffset 32 // // 0x60 | 0x60_00 | PUSH1 0 | 0 contractOffset 32 // // 0x39 | 0x39 | CODECOPY | // // 0x60 | 0x60_00 | PUSH1 0 | 0 // // 0x51 | 0x51 | MLOAD | byteDeployerAddress // // 0x33 | 0x33 | CALLER | msg.sender byteDeployerAddress // // 0x14 | 0x14 | EQ | (msg.sender == byteDeployerAddress) // //---------------------------------------------------------------------------------------------------------------// // (12 bytes: 0-11 in deployed contract) hex"60_20_60_48_60_00_39_60_00_51_33_14", //---------------------------------------------------------------------------------------------------------------// // (1b) load up the destination jump address for `(2a) calldata length check` logic, jump or raise `invalid` op-code //---------------------------------------------------------------------------------------------------------------// // 0x60 | 0x60_10 | PUSH1 16 (^) | jumpDestination (msg.sender == byteDeployerAddress) // // 0x57 | 0x57 | JUMPI | // // 0xFE | 0xFE | INVALID | // //---------------------------------------------------------------------------------------------------------------// // (4 bytes: 12-15 in deployed contract) hex"60_10_57_FE", //---------------------------------------------------------------------------------------------------------------// // (2a) conditional logic for determing purge-gate (only if calldata length is 1 byte) //---------------------------------------------------------------------------------------------------------------// // 0x5B | 0x5B | JUMPDEST (16) | // // 0x60 | 0x60_01 | PUSH1 1 | 1 // // 0x36 | 0x36 | CALLDATASIZE | calldataSize 1 // // 0x14 | 0x14 | EQ | (calldataSize == 1) // //---------------------------------------------------------------------------------------------------------------// // (5 bytes: 16-20 in deployed contract) hex"5B_60_01_36_14", //---------------------------------------------------------------------------------------------------------------// // (2b) load up the destination jump address for `(3a) calldata value check` logic, jump or raise `invalid` op-code //---------------------------------------------------------------------------------------------------------------// // 0x60 | 0x60_19 | PUSH1 25 (^) | jumpDestination (calldataSize == 1) // // 0x57 | 0x57 | JUMPI | // // 0xFE | 0xFE | INVALID | // //---------------------------------------------------------------------------------------------------------------// // (4 bytes: 21-24 in deployed contract) hex"60_19_57_FE", //---------------------------------------------------------------------------------------------------------------// // (3a) conditional logic for determing purge-gate (only if calldata is `0xFF`) //---------------------------------------------------------------------------------------------------------------// // 0x5B | 0x5B | JUMPDEST (25) | // // 0x60 | 0x60_00 | PUSH1 0 | 0 // // 0x35 | 0x35 | CALLDATALOAD | calldata // // 0x7F | 0x7F_FF_00_..._00 | PUSH32 0xFF00...00 | 0xFF0...00 calldata // // 0x14 | 0x14 | EQ | (0xFF00...00 == calldata) // //---------------------------------------------------------------------------------------------------------------// // (4 bytes: 25-28 in deployed contract) hex"5B_60_00_35", // (33 bytes: 29-61 in deployed contract) hex"7F_FF_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00", // (1 byte: 62 in deployed contract) hex"14", //---------------------------------------------------------------------------------------------------------------// // (3b) load up the destination jump address for actual purging (4), jump or raise `invalid` op-code //---------------------------------------------------------------------------------------------------------------// // 0x60 | 0x60_43 | PUSH1 67 (^) | jumpDestination (0xFF00...00 == calldata) // // 0x57 | 0x57 | JUMPI | // // 0xFE | 0xFE | INVALID | // //---------------------------------------------------------------------------------------------------------------// // (4 bytes: 63-66 in deployed contract) hex"60_43_57_FE", //---------------------------------------------------------------------------------------------------------------// // (4) perform actual purging //---------------------------------------------------------------------------------------------------------------// // 0x5B | 0x5B | JUMPDEST (67) | // // 0x60 | 0x60_00 | PUSH1 0 | 0 // // 0x51 | 0x51 | MLOAD | byteDeployerAddress // // 0xFF | 0xFF | SELFDESTRUCT | // //---------------------------------------------------------------------------------------------------------------// // (5 bytes: 67-71 in deployed contract) hex"5B_60_00_51_FF", //---------------------------------------------------------------------------------------------------------------// // (*) Note: this value must be adjusted if selfdestruct purge logic is adjusted, to refer to the correct start // // offset for where the `msg.sender` address was stored in deployed bytecode. // // // // (^) Note: this value must be adjusted if portions of the selfdestruct purge logic are adjusted. // //---------------------------------------------------------------------------------------------------------------// // // store the deploying-contract's address (to be used to gate and call `selfdestruct`), // with expected 0-padding to fit a 20-byte address into a 30-byte slot. // // note: it is important that this address is the executing contract's address // (the address that represents the client-application smart contract of this library) // which means that it is the responsibility of the client-application smart contract // to determine how deletes are gated (or if they are exposed at all) as it is only // this contract that will be able to call `purgeBytecode` as the `CALLER` that is // checked above (op-code 0x33). hex"00_00_00_00_00_00_00_00_00_00_00_00", // left-pad 20-byte address with 12 0x00 bytes address(this), // uploaded data (stored as bytecode) comes last _data ); assembly { // deploy a new contract with the generated creation code. // start 32 bytes into creationCode to avoid copying the byte length. address_ := create(0, add(creationCode, 0x20), mload(creationCode)) } // address must be non-zero if contract was deployed successfully require(address_ != address(0), "ContractAsStorage: Write Error"); } /*////////////////////////////////////////////////////////////// READ LOGIC //////////////////////////////////////////////////////////////*/ /** * @notice Read a string from contract bytecode * @param _address address of deployed contract with bytecode containing concat(gated-cleanup-logic, data) * @return data string read from contract bytecode */ function readFromBytecode(address _address) internal view returns (string memory data) { // get the size of the bytecode uint256 bytecodeSize = _bytecodeSizeAt(_address); // handle case where address contains code < DATA_OFFSET // note: the first check here also captures the case where // (bytecodeSize == 0) implicitly, but we add the second check of // (bytecodeSize == 0) as a fall-through that will never execute // unless `DATA_OFFSET` is set to 0 at some point. if ((bytecodeSize < DATA_OFFSET) || (bytecodeSize == 0)) { revert("ContractAsStorage: Read Error"); } // handle case where address contains code >= DATA_OFFSET // decrement by DATA_OFFSET to account for purge logic uint256 size; unchecked { size = bytecodeSize - DATA_OFFSET; } assembly { // allocate free memory data := mload(0x40) // update free memory pointer // use and(x, not(0x1f) as cheaper equivalent to sub(x, mod(x, 0x20)). // adding 0x1f to size + logic above ensures the free memory pointer // remains word-aligned, following the Solidity convention. mstore(0x40, add(data, and(add(add(size, 0x20), 0x1f), not(0x1f)))) // store length of data in first 32 bytes mstore(data, size) // copy code to memory, excluding the gated-cleanup-logic extcodecopy(_address, add(data, 0x20), DATA_OFFSET, size) } } /** * @notice Get address for deployer for given contract bytecode * @param _address address of deployed contract with bytecode containing concat(gated-cleanup-logic, data) * @return writerAddress address read from contract bytecode */ function getWriterAddressForBytecode(address _address) internal view returns (address) { // get the size of the data uint256 bytecodeSize = _bytecodeSizeAt(_address); // handle case where address contains code < DATA_OFFSET // note: the first check here also captures the case where // (bytecodeSize == 0) implicitly, but we add the second check of // (bytecodeSize == 0) as a fall-through that will never execute // unless `DATA_OFFSET` is set to 0 at some point. if ((bytecodeSize < DATA_OFFSET) || (bytecodeSize == 0)) { revert("ContractAsStorage: Read Error"); } assembly { // allocate free memory let writerAddress := mload(0x40) // shift free memory pointer by one slot mstore(0x40, add(mload(0x40), 0x20)) // copy the 32-byte address of the data contract writer to memory // note: this relies on the assumption noted at the top-level of // this file that the storage layout for the deployed // contracts-as-storage contract looks like: // | gated-cleanup-logic | deployer-address (padded) | data | extcodecopy( _address, writerAddress, ADDRESS_OFFSET, 0x20 // full 32-bytes, as address is expected to be zero-padded ) return( writerAddress, 0x20 // return size is entire slot, as it is zero-padded ) } } /*////////////////////////////////////////////////////////////// DELETE LOGIC //////////////////////////////////////////////////////////////*/ /** * @notice Purge contract bytecode for cleanup purposes * @param _address address of deployed contract with bytecode containing concat(gated-cleanup-logic, data) * @dev This contract is only callable by the address of the contract that originally deployed the bytecode * being purged. If this method is called by any other address, it will revert with the `INVALID` op-code. * Additionally, for security purposes, the contract must be called with calldata `0xFF` to ensure that * the `selfdestruct` op-code is intentionally being invoked, otherwise the `INVALID` op-code will be raised. */ function purgeBytecode(address _address) internal { // deployed bytecode (above) handles all logic for purging state, so no // call data is expected to be passed along to perform data purge ( bool success, /* `data` not needed */ ) = _address.call(hex"FF"); if (!success) { revert("ContractAsStorage: Delete Error"); } } /*////////////////////////////////////////////////////////////// INTERNAL HELPER LOGIC //////////////////////////////////////////////////////////////*/ /** @notice Returns the size of the bytecode at address `_address` @param _address address that may or may not contain bytecode @return size size of the bytecode code at `_address` */ function _bytecodeSizeAt(address _address) private view returns (uint256 size) { assembly { size := extcodesize(_address) } } }
// SPDX-License-Identifier: LGPL-3.0-only // Created By: Art Blocks Inc. // Inspired by: https://ethereum.stackexchange.com/a/123950/103422 pragma solidity ^0.8.0; /** * @dev Operations on bytes32 data type, dealing with conversion to string. */ library Bytes32Strings { /** * @dev Intended to convert a `bytes32`-encoded string literal to `string`. * Trims zero padding to arrive at original string literal. */ function toString(bytes32 source) internal pure returns (string memory result) { uint8 length = 0; while (source[length] != 0 && length < 32) { length++; } assembly { // free memory pointer result := mload(0x40) // update free memory pointer to new "memory end" // (offset is 64-bytes: 32 for length, 32 for data) mstore(0x40, add(result, 0x40)) // store length in first 32-byte memory slot mstore(result, length) // write actual data in second 32-byte memory slot mstore(add(result, 0x20), source) } } /** * @dev Intended to check if a `bytes32`-encoded string contains a given * character with UTF-8 character code `utf8CharCode exactly `targetQty` * times. Does not support searching for multi-byte characters, only * characters with UTF-8 character codes < 0x80. */ function containsExactCharacterQty( bytes32 source, uint8 utf8CharCode, uint8 targetQty ) internal pure returns (bool) { uint8 _occurrences = 0; uint8 i; for (i = 0; i < 32; ) { uint8 _charCode = uint8(source[i]); // if not a null byte, or a multi-byte UTF-8 character, check match if (_charCode != 0 && _charCode < 0x80) { if (_charCode == utf8CharCode) { unchecked { // no risk of overflow since max 32 iterations < max uin8=255 ++_occurrences; } } } unchecked { // no risk of overflow since max 32 iterations < max uin8=255 ++i; } } return _occurrences == targetQty; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: 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 v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @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/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "optimizer": { "enabled": true, "runs": 25 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : _tokenName (string): Art Blocks Explorations
Arg [1] : _tokenSymbol (string): EXPLORE
Arg [2] : _randomizerContract (address): 0x125F8cd6CEa6E35A42B9bA57b6435c19304D307A
Arg [3] : _adminACLContract (address): 0x286bA5808A98c9237449182E05740E4B7284389e
Arg [4] : _startingProjectId (uint248): 0
-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 000000000000000000000000125f8cd6cea6e35a42b9ba57b6435c19304d307a
Arg [3] : 000000000000000000000000286ba5808a98c9237449182e05740e4b7284389e
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000017
Arg [6] : 41727420426c6f636b73204578706c6f726174696f6e73000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [8] : 4558504c4f524500000000000000000000000000000000000000000000000000
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