Overview
TokenID
10
Total Transfers
-
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract
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Contract Source Code Verified (Exact Match)
Contract Name:
CodeHavoc
Compiler Version
v0.8.28+commit.7893614a
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.28; import "@limitbreak/creator-token-standards/src/access/OwnableBasic.sol"; import "@limitbreak/creator-token-standards/src/erc1155c/ERC1155C.sol"; import "@limitbreak/creator-token-standards/src/programmable-royalties/BasicRoyalties.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "./utils/PhaseMint.sol"; import "./utils/Signature.sol"; contract CodeHavoc is ERC1155C, PhaseMint, BasicRoyalties, OwnableBasic, Signature, ReentrancyGuard { string public name; string public symbol; struct Token { uint8 id; uint256 supply; uint256 maxSupply; } mapping(uint8 => Token[]) public Tokens; mapping(address => uint256) private userMinted; mapping(address => bytes[]) private box; mapping(uint256 => uint256) public minted; mapping(address => uint256) public buys; mapping(uint256 => uint256) public evolution; bool public isSaleActive; bool public transferEnabled; bool public evolveEnabled; address public publicSigner; string public baseURI; uint256 public maxSupply; uint256 public totalSupply; enum Rarity { Common, Uncommon, Rare, SuperRare, Legendary, Mythic } uint8[] private _mythicIds; uint8[] private _legendaryIds; uint8[] private _superRareIds; uint8[] private _rareIds; uint8[] private _uncommonIds; uint8[] private _commonIds; constructor( address _signer, address royaltyReceiver_, uint96 royaltyFeeNumerator_ ) ReentrancyGuard() ERC1155OpenZeppelin("") OwnableBasic() BasicRoyalties(royaltyReceiver_, royaltyFeeNumerator_) { // Initialize contract parameters transferOwnership(msg.sender); name = "CodeHavoc"; symbol = "CHV"; baseURI = "https://codehavoc.xyz/nft/metadata/"; publicSigner = _signer; _setSigner(_signer); isSaleActive = true; transferEnabled = false; maxSupply = 5000; totalSupply = 0; _mythicIds = [9, 13]; _legendaryIds = [1, 2, 3]; _superRareIds = [8, 10, 17]; _rareIds = [4, 6, 12, 14]; _uncommonIds = [7, 11, 16]; _commonIds = [5, 15]; _initializeTokens(Rarity.Common, _commonIds, 0); // 0 is unlimited _initializeTokens(Rarity.Uncommon, _uncommonIds, 0); // 0 is unlimited _initializeTokens(Rarity.Rare, _rareIds, 0); // 0 is unlimited _initializeTokens(Rarity.SuperRare, _superRareIds, 0); // 0 is unlimited _initializeTokens(Rarity.Legendary, _legendaryIds, 133); // change supply to 400/3 _initializeTokens(Rarity.Mythic, _mythicIds, 100); // change supply to 200/2 } function mint( address _to, uint256 _tokenId, uint256 _amount, bytes32 _phaseID, uint256 _price, uint256 _maxPerTx, uint256 _maxPerUser, uint256 _maxPerPhase, uint256 _maxPerPhasePerTokenId, bytes32 _nonce, bytes memory _signature ) public payable { require(msg.sender == tx.origin, "No contract interaction"); require(isSaleActive, "Sale is not active"); require(_amount > 0, "Amount must be greater than 0"); require(_tokenId == 0, "Invalid token ID"); require( minted[_tokenId] + _amount <= maxSupply, "Exceeds max supply for token ID" ); require(msg.value >= _amount * _price, "Insufficient value to mint"); require(isValidNonce(_nonce), "Invalid nonce"); nonces[_nonce] = true; require( recoverAddress( _signature, _to, _tokenId, _amount, _phaseID, _price, _maxPerTx, _maxPerUser, _maxPerPhase, _maxPerPhasePerTokenId, _nonce ) == publicSigner, "Invalid signature" ); _mintPhase( _to, _amount, _tokenId, _phaseID, _maxPerTx, _maxPerUser, _maxPerPhase, _maxPerPhasePerTokenId ); for (uint256 i = 0; i < _amount; i++) { totalSupply += 1; userMinted[_to] += 1; box[msg.sender].push(_randomBytes()); } minted[_tokenId] += _amount; _mint(_to, _tokenId, _amount, ""); } function reveal(uint256 _amount) public { require(msg.sender == tx.origin, "No contract interaction"); require( box[msg.sender].length >= _amount, "Insufficient boxes to reveal" ); require( balanceOf(msg.sender, 0) >= _amount, "Insufficient boxes to reveal" ); for (uint256 i = 0; i < _amount; i++) { bytes memory _hash = box[msg.sender][box[msg.sender].length - 1]; box[msg.sender].pop(); uint8 rarity = _handleRarity(_hash); (uint8 rarityId, uint8 id) = _randomIdByRarity(rarity); Tokens[rarityId][id].supply += 1; userMinted[msg.sender] += 1; _mint(msg.sender, Tokens[rarityId][id].id, 1, ""); } _burn(msg.sender, 0, _amount); } function evolve( uint256 _tokenId, uint256 _amount, uint256 _price, bytes32 _nonce, bytes memory _signature ) public payable { require(msg.sender == tx.origin, "No contract interaction"); require( balanceOf(msg.sender, _tokenId) >= _amount, "Insufficient boxes to reveal" ); require(evolution[_tokenId] != 0, "Token cannot evolve"); require(evolveEnabled, "Evolve is not enabled"); require(isValidNonce(_nonce), "Invalid nonce"); nonces[_nonce] = true; require( recoverAddressToEvolve( _signature, msg.sender, _tokenId, _amount, _price, _nonce ) == publicSigner, "Invalid signature" ); require(msg.value >= _amount * _price, "Insufficient value to evolve"); _burn(msg.sender, _tokenId, _amount); _mint(msg.sender, evolution[_tokenId], _amount, ""); } function setEvolveEnabled(bool _evolveEnabled) public onlyOwner { evolveEnabled = _evolveEnabled; } function setEvolution( uint256 _tokenId, uint256 _evolutionId ) public onlyOwner { evolution[_tokenId] = _evolutionId; } function setApprovalForAll( address operator, bool approved ) public override { require(transferEnabled, "Transfer is not enabled"); super.setApprovalForAll(operator, approved); } function safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) public override { require(transferEnabled, "Transfer is not enabled"); require( msg.sender == from || isApprovedForAll(from, msg.sender), "ERC1155: caller is not owner nor approved" ); for (uint256 i = 0; i < ids.length; i++) { if (ids[i] == 0) { for (uint256 y = 0; y < amounts[y]; y++) { bytes memory _temp = box[from][box[from].length - 1]; box[from].pop(); box[to].push(_temp); } } } super._safeBatchTransferFrom(from, to, ids, amounts, data); } function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) public override { require(transferEnabled, "Transfer is not enabled"); require( msg.sender == from || isApprovedForAll(from, msg.sender), "ERC1155: caller is not owner nor approved" ); if (id == 0) { for (uint256 i = 0; i < amount; i++) { bytes memory _temp = box[from][box[from].length - 1]; box[from].pop(); box[to].push(_temp); } } super._safeTransferFrom(from, to, id, amount, data); } function _randomBytes() internal view returns (bytes memory) { return abi.encodePacked( block.timestamp, block.prevrandao, blockhash(block.number - 1), userMinted[msg.sender], totalSupply, msg.sender ); } function _handleRarity(bytes memory hash) internal pure returns (uint8) { uint256 rand = uint256(keccak256(hash)) % 100; if (rand < 3) { // 3% chance return uint8(Rarity.Mythic); } else if (rand < 8) { // 5% chance return uint8(Rarity.Legendary); } else if (rand < 20) { // 12% chance return uint8(Rarity.SuperRare); } else if (rand < 40) { // 20% chance return uint8(Rarity.Rare); } else if (rand < 65) { // 25% chance return uint8(Rarity.Uncommon); } else { // 35% chance return uint8(Rarity.Common); } } function _randomIdByRarity( uint8 rarityIndex ) internal view returns (uint8, uint8) { (uint8 rarityId, uint8[] memory ids) = _handleRarityIds(rarityIndex); uint256 randIndex = uint256( keccak256( abi.encodePacked(block.prevrandao, blockhash(block.number - 1)) ) ) % ids.length; // Returns the randomly selected token ID return (rarityId, ids[randIndex]); } function _handleRarityIds( uint8 _rarityId ) internal view returns (uint8, uint8[] memory) { uint8[] memory _tokens = new uint8[](Tokens[_rarityId].length); Token[] storage rarity = Tokens[_rarityId]; uint8 count = 0; for (uint8 i = 0; i < rarity.length; i++) { if ( Tokens[_rarityId][i].maxSupply == 0 || Tokens[_rarityId][i].supply < Tokens[_rarityId][i].maxSupply ) { _tokens[count] = i; count++; } } uint8[] memory filteredIds = new uint8[](count); for (uint8 j = 0; j < count; j++) { filteredIds[j] = _tokens[j]; } if (filteredIds.length == 0) { return _handleRarityIds(_rarityId + 1); } return (_rarityId, filteredIds); } function _initializeTokens( Rarity _rarity, uint8[] memory ids, uint256 _maxSupply ) internal onlyOwner { for (uint8 i = 0; i < ids.length; i++) { Tokens[uint8(_rarity)].push(Token(ids[i], 0, _maxSupply)); } } function setRarityMaxSupply( Rarity _rarity, uint256 _maxSupply ) public onlyOwner { for (uint8 i = 0; i < Tokens[uint8(_rarity)].length; i++) { Tokens[uint8(_rarity)][i].maxSupply = _maxSupply; } } function setTokenMaxSupply( Rarity _rarity, uint8 _id, uint256 _maxSupply ) public onlyOwner { Tokens[uint8(_rarity)][_id].maxSupply = _maxSupply; } function addToken(Rarity _rarity, uint8 _id) public onlyOwner { Tokens[uint8(_rarity)].push( Token(_id, 0, Tokens[uint8(_rarity)][0].maxSupply) ); } function _getEthSignedMessageHash( bytes32 messageHash ) internal pure returns (bytes32) { return keccak256( abi.encodePacked( "\x19Ethereum Signed Message:\n32", messageHash ) ); } function recoverAddress( bytes memory _signature, address _to, uint256 _tokenId, uint256 _amount, bytes32 _phaseID, uint256 _price, uint256 _maxPerTx, uint256 _maxPerUser, uint256 _maxPerPhase, uint256 _maxPerPhasePerTokenId, bytes32 _nonce ) public pure returns (address) { bytes32 messageHash = keccak256( abi.encodePacked( _to, _tokenId, _amount, _phaseID, _price, _maxPerTx, _maxPerUser, _maxPerPhase, _maxPerPhasePerTokenId, _nonce ) ); bytes32 ethSignedMessageHash = _getEthSignedMessageHash(messageHash); return ECDSA.recover(ethSignedMessageHash, _signature); } function recoverAddressToEvolve( bytes memory _signature, address _to, uint256 _tokenId, uint256 _amount, uint256 _price, bytes32 _nonce ) public pure returns (address) { bytes32 messageHash = keccak256( abi.encodePacked(_to, _tokenId, _amount, _price, _nonce) ); bytes32 ethSignedMessageHash = _getEthSignedMessageHash(messageHash); return ECDSA.recover(ethSignedMessageHash, _signature); } function setMaxSupply(uint256 _maxSupply) public onlyOwner { maxSupply = _maxSupply; } function setSaleActive(bool _isSaleActive) public onlyOwner { isSaleActive = _isSaleActive; } function setBaseURI(string memory newuri) public onlyOwner { baseURI = newuri; } function uri(uint256 _id) public view override returns (string memory) { return string(abi.encodePacked(baseURI, Strings.toString(_id), ".json")); } function setSigner(address _signer) public onlyOwner { publicSigner = _signer; } function setTransferEnabled(bool _transferEnabled) public onlyOwner { transferEnabled = _transferEnabled; } function supportsInterface( bytes4 interfaceId ) public view virtual override(ERC1155C, ERC2981) returns (bool) { return interfaceId == bytes4(0x49064906) || super.supportsInterface(interfaceId); } function setDefaultRoyalty( address receiver, uint96 feeNumerator ) public onlyOwner { _setDefaultRoyalty(receiver, feeNumerator); } function setTokenRoyalty( uint256 tokenId, address receiver, uint96 feeNumerator ) public onlyOwner { _setTokenRoyalty(tokenId, receiver, feeNumerator); } function withdraw() external onlyOwner { payable(msg.sender).transfer(address(this).balance); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./OwnablePermissions.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; abstract contract OwnableBasic is OwnablePermissions, Ownable { function _requireCallerIsContractOwner() internal view virtual override { _checkOwner(); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/Context.sol"; abstract contract OwnablePermissions is Context { function _requireCallerIsContractOwner() internal view virtual; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../utils/AutomaticValidatorTransferApproval.sol"; import "../utils/CreatorTokenBase.sol"; import "../token/erc1155/ERC1155OpenZeppelin.sol"; import {TOKEN_TYPE_ERC1155} from "@limitbreak/permit-c/src/Constants.sol"; /** * @title ERC1155C * @author Limit Break, Inc. * @notice Extends OpenZeppelin's ERC1155 implementation with Creator Token functionality, which * allows the contract owner to update the transfer validation logic by managing a security policy in * an external transfer validation security policy registry. See {CreatorTokenTransferValidator}. */ abstract contract ERC1155C is ERC1155OpenZeppelin, CreatorTokenBase, AutomaticValidatorTransferApproval { /** * @notice Overrides behavior of isApprovedFor all such that if an operator is not explicitly approved * for all, the contract owner can optionally auto-approve the 721-C transfer validator for transfers. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool isApproved) { isApproved = super.isApprovedForAll(owner, operator); if (!isApproved) { if (autoApproveTransfersFromValidator) { isApproved = operator == address(getTransferValidator()); } } } /** * @notice Indicates whether the contract implements the specified interface. * @dev Overrides supportsInterface in ERC165. * @param interfaceId The interface id * @return true if the contract implements the specified interface, false otherwise */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(ICreatorToken).interfaceId || interfaceId == type(ICreatorTokenLegacy).interfaceId || super.supportsInterface(interfaceId); } /** * @notice Returns the function selector for the transfer validator's validation function to be called * @notice for transaction simulation. */ function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) { functionSignature = bytes4(keccak256("validateTransfer(address,address,address,uint256,uint256)")); isViewFunction = false; } /// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic function _beforeTokenTransfer( address /*operator*/, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory /*data*/ ) internal virtual override { uint256 idsArrayLength = ids.length; for (uint256 i = 0; i < idsArrayLength;) { _validateBeforeTransfer(from, to, ids[i], amounts[i]); unchecked { ++i; } } } /// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic function _afterTokenTransfer( address /*operator*/, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory /*data*/ ) internal virtual override { uint256 idsArrayLength = ids.length; for (uint256 i = 0; i < idsArrayLength;) { _validateAfterTransfer(from, to, ids[i], amounts[i]); unchecked { ++i; } } } function _tokenType() internal pure override returns(uint16) { return uint16(TOKEN_TYPE_ERC1155); } } /** * @title ERC1155CInitializable * @author Limit Break, Inc. * @notice Initializable implementation of ERC1155C to allow for EIP-1167 proxy clones. */ abstract contract ERC1155CInitializable is ERC1155OpenZeppelinInitializable, CreatorTokenBase, AutomaticValidatorTransferApproval { function initializeERC1155(string memory uri_) public override { super.initializeERC1155(uri_); _emitDefaultTransferValidator(); _registerTokenType(getTransferValidator()); } /** * @notice Overrides behavior of isApprovedFor all such that if an operator is not explicitly approved * for all, the contract owner can optionally auto-approve the 721-C transfer validator for transfers. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool isApproved) { isApproved = super.isApprovedForAll(owner, operator); if (!isApproved) { if (autoApproveTransfersFromValidator) { isApproved = operator == address(getTransferValidator()); } } } /** * @notice Indicates whether the contract implements the specified interface. * @dev Overrides supportsInterface in ERC165. * @param interfaceId The interface id * @return true if the contract implements the specified interface, false otherwise */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(ICreatorToken).interfaceId || interfaceId == type(ICreatorTokenLegacy).interfaceId || super.supportsInterface(interfaceId); } /** * @notice Returns the function selector for the transfer validator's validation function to be called * @notice for transaction simulation. */ function getTransferValidationFunction() external pure returns (bytes4 functionSignature, bool isViewFunction) { functionSignature = bytes4(keccak256("validateTransfer(address,address,address,uint256,uint256)")); isViewFunction = false; } /// @dev Ties the open-zeppelin _beforeTokenTransfer hook to more granular transfer validation logic function _beforeTokenTransfer( address /*operator*/, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory /*data*/ ) internal virtual override { uint256 idsArrayLength = ids.length; for (uint256 i = 0; i < idsArrayLength;) { _validateBeforeTransfer(from, to, ids[i], amounts[i]); unchecked { ++i; } } } /// @dev Ties the open-zeppelin _afterTokenTransfer hook to more granular transfer validation logic function _afterTokenTransfer( address /*operator*/, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory /*data*/ ) internal virtual override { uint256 idsArrayLength = ids.length; for (uint256 i = 0; i < idsArrayLength;) { _validateAfterTransfer(from, to, ids[i], amounts[i]); unchecked { ++i; } } } function _tokenType() internal pure override returns(uint16) { return uint16(TOKEN_TYPE_ERC1155); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface ICreatorToken { event TransferValidatorUpdated(address oldValidator, address newValidator); function getTransferValidator() external view returns (address validator); function setTransferValidator(address validator) external; function getTransferValidationFunction() external view returns (bytes4 functionSignature, bool isViewFunction); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface ICreatorTokenLegacy { event TransferValidatorUpdated(address oldValidator, address newValidator); function getTransferValidator() external view returns (address validator); function setTransferValidator(address validator) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface ITransferValidator { function applyCollectionTransferPolicy(address caller, address from, address to) external view; function validateTransfer(address caller, address from, address to) external view; function validateTransfer(address caller, address from, address to, uint256 tokenId) external view; function validateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount) external; function beforeAuthorizedTransfer(address operator, address token, uint256 tokenId) external; function afterAuthorizedTransfer(address token, uint256 tokenId) external; function beforeAuthorizedTransfer(address operator, address token) external; function afterAuthorizedTransfer(address token) external; function beforeAuthorizedTransfer(address token, uint256 tokenId) external; function beforeAuthorizedTransferWithAmount(address token, uint256 tokenId, uint256 amount) external; function afterAuthorizedTransferWithAmount(address token, uint256 tokenId) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface ITransferValidatorSetTokenType { function setTokenTypeOfCollection(address collection, uint16 tokenType) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/common/ERC2981.sol"; /** * @title BasicRoyaltiesBase * @author Limit Break, Inc. * @dev Base functionality of an NFT mix-in contract implementing the most basic form of programmable royalties. */ abstract contract BasicRoyaltiesBase is ERC2981 { event DefaultRoyaltySet(address indexed receiver, uint96 feeNumerator); event TokenRoyaltySet(uint256 indexed tokenId, address indexed receiver, uint96 feeNumerator); function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual override { super._setDefaultRoyalty(receiver, feeNumerator); emit DefaultRoyaltySet(receiver, feeNumerator); } function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual override { super._setTokenRoyalty(tokenId, receiver, feeNumerator); emit TokenRoyaltySet(tokenId, receiver, feeNumerator); } } /** * @title BasicRoyalties * @author Limit Break, Inc. * @notice Constructable BasicRoyalties Contract implementation. */ abstract contract BasicRoyalties is BasicRoyaltiesBase { constructor(address receiver, uint96 feeNumerator) { _setDefaultRoyalty(receiver, feeNumerator); } } /** * @title BasicRoyaltiesInitializable * @author Limit Break, Inc. * @notice Initializable BasicRoyalties Contract implementation to allow for EIP-1167 clones. */ abstract contract BasicRoyaltiesInitializable is BasicRoyaltiesBase {}
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../../access/OwnablePermissions.sol"; import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol"; abstract contract ERC1155OpenZeppelinBase is ERC1155 { } abstract contract ERC1155OpenZeppelin is ERC1155OpenZeppelinBase { constructor(string memory uri_) ERC1155(uri_) {} } abstract contract ERC1155OpenZeppelinInitializable is OwnablePermissions, ERC1155OpenZeppelinBase { error ERC1155OpenZeppelinInitializable__AlreadyInitializedERC1155(); bool private _erc1155Initialized; function initializeERC1155(string memory uri_) public virtual { _requireCallerIsContractOwner(); if(_erc1155Initialized) { revert ERC1155OpenZeppelinInitializable__AlreadyInitializedERC1155(); } _erc1155Initialized = true; _setURI(uri_); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../access/OwnablePermissions.sol"; /** * @title AutomaticValidatorTransferApproval * @author Limit Break, Inc. * @notice Base contract mix-in that provides boilerplate code giving the contract owner the * option to automatically approve a 721-C transfer validator implementation for transfers. */ abstract contract AutomaticValidatorTransferApproval is OwnablePermissions { /// @dev Emitted when the automatic approval flag is modified by the creator. event AutomaticApprovalOfTransferValidatorSet(bool autoApproved); /// @dev If true, the collection's transfer validator is automatically approved to transfer holder's tokens. bool public autoApproveTransfersFromValidator; /** * @notice Sets if the transfer validator is automatically approved as an operator for all token owners. * * @dev Throws when the caller is not the contract owner. * * @param autoApprove If true, the collection's transfer validator will be automatically approved to * transfer holder's tokens. */ function setAutomaticApprovalOfTransfersFromValidator(bool autoApprove) external { _requireCallerIsContractOwner(); autoApproveTransfersFromValidator = autoApprove; emit AutomaticApprovalOfTransferValidatorSet(autoApprove); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../access/OwnablePermissions.sol"; import "../interfaces/ICreatorToken.sol"; import "../interfaces/ICreatorTokenLegacy.sol"; import "../interfaces/ITransferValidator.sol"; import "./TransferValidation.sol"; import "../interfaces/ITransferValidatorSetTokenType.sol"; /** * @title CreatorTokenBase * @author Limit Break, Inc. * @notice CreatorTokenBaseV3 is an abstract contract that provides basic functionality for managing token * transfer policies through an implementation of ICreatorTokenTransferValidator/ICreatorTokenTransferValidatorV2/ICreatorTokenTransferValidatorV3. * This contract is intended to be used as a base for creator-specific token contracts, enabling customizable transfer * restrictions and security policies. * * <h4>Features:</h4> * <ul>Ownable: This contract can have an owner who can set and update the transfer validator.</ul> * <ul>TransferValidation: Implements the basic token transfer validation interface.</ul> * * <h4>Benefits:</h4> * <ul>Provides a flexible and modular way to implement custom token transfer restrictions and security policies.</ul> * <ul>Allows creators to enforce policies such as account and codehash blacklists, whitelists, and graylists.</ul> * <ul>Can be easily integrated into other token contracts as a base contract.</ul> * * <h4>Intended Usage:</h4> * <ul>Use as a base contract for creator token implementations that require advanced transfer restrictions and * security policies.</ul> * <ul>Set and update the ICreatorTokenTransferValidator implementation contract to enforce desired policies for the * creator token.</ul> * * <h4>Compatibility:</h4> * <ul>Backward and Forward Compatible - V1/V2/V3 Creator Token Base will work with V1/V2/V3 Transfer Validators.</ul> */ abstract contract CreatorTokenBase is OwnablePermissions, TransferValidation, ICreatorToken { /// @dev Thrown when setting a transfer validator address that has no deployed code. error CreatorTokenBase__InvalidTransferValidatorContract(); /// @dev The default transfer validator that will be used if no transfer validator has been set by the creator. address public constant DEFAULT_TRANSFER_VALIDATOR = address(0x721C002B0059009a671D00aD1700c9748146cd1B); /// @dev Used to determine if the default transfer validator is applied. /// @dev Set to true when the creator sets a transfer validator address. bool private isValidatorInitialized; /// @dev Address of the transfer validator to apply to transactions. address private transferValidator; constructor() { _emitDefaultTransferValidator(); _registerTokenType(DEFAULT_TRANSFER_VALIDATOR); } /** * @notice Sets the transfer validator for the token contract. * * @dev Throws when provided validator contract is not the zero address and does not have code. * @dev Throws when the caller is not the contract owner. * * @dev <h4>Postconditions:</h4> * 1. The transferValidator address is updated. * 2. The `TransferValidatorUpdated` event is emitted. * * @param transferValidator_ The address of the transfer validator contract. */ function setTransferValidator(address transferValidator_) public { _requireCallerIsContractOwner(); bool isValidTransferValidator = transferValidator_.code.length > 0; if(transferValidator_ != address(0) && !isValidTransferValidator) { revert CreatorTokenBase__InvalidTransferValidatorContract(); } emit TransferValidatorUpdated(address(getTransferValidator()), transferValidator_); isValidatorInitialized = true; transferValidator = transferValidator_; _registerTokenType(transferValidator_); } /** * @notice Returns the transfer validator contract address for this token contract. */ function getTransferValidator() public view override returns (address validator) { validator = transferValidator; if (validator == address(0)) { if (!isValidatorInitialized) { validator = DEFAULT_TRANSFER_VALIDATOR; } } } /** * @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy. * Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent * and calling _validateBeforeTransfer so that checks can be properly applied during token transfers. * * @dev Be aware that if the msg.sender is the transfer validator, the transfer is automatically permitted, as the * transfer validator is expected to pre-validate the transfer. * * @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is * set to a non-zero address. * * @param caller The address of the caller. * @param from The address of the sender. * @param to The address of the receiver. * @param tokenId The token id being transferred. */ function _preValidateTransfer( address caller, address from, address to, uint256 tokenId, uint256 /*value*/) internal virtual override { address validator = getTransferValidator(); if (validator != address(0)) { if (msg.sender == validator) { return; } ITransferValidator(validator).validateTransfer(caller, from, to, tokenId); } } /** * @dev Pre-validates a token transfer, reverting if the transfer is not allowed by this token's security policy. * Inheriting contracts are responsible for overriding the _beforeTokenTransfer function, or its equivalent * and calling _validateBeforeTransfer so that checks can be properly applied during token transfers. * * @dev Be aware that if the msg.sender is the transfer validator, the transfer is automatically permitted, as the * transfer validator is expected to pre-validate the transfer. * * @dev Used for ERC20 and ERC1155 token transfers which have an amount value to validate in the transfer validator. * @dev The `tokenId` for ERC20 tokens should be set to `0`. * * @dev Throws when the transfer doesn't comply with the collection's transfer policy, if the transferValidator is * set to a non-zero address. * * @param caller The address of the caller. * @param from The address of the sender. * @param to The address of the receiver. * @param tokenId The token id being transferred. * @param amount The amount of token being transferred. */ function _preValidateTransfer( address caller, address from, address to, uint256 tokenId, uint256 amount, uint256 /*value*/) internal virtual override { address validator = getTransferValidator(); if (validator != address(0)) { if (msg.sender == validator) { return; } ITransferValidator(validator).validateTransfer(caller, from, to, tokenId, amount); } } function _tokenType() internal virtual pure returns(uint16); function _registerTokenType(address validator) internal { if (validator != address(0)) { uint256 validatorCodeSize; assembly { validatorCodeSize := extcodesize(validator) } if(validatorCodeSize > 0) { try ITransferValidatorSetTokenType(validator).setTokenTypeOfCollection(address(this), _tokenType()) { } catch { } } } } /** * @dev Used during contract deployment for constructable and cloneable creator tokens * @dev to emit the `TransferValidatorUpdated` event signaling the validator for the contract * @dev is the default transfer validator. */ function _emitDefaultTransferValidator() internal { emit TransferValidatorUpdated(address(0), DEFAULT_TRANSFER_VALIDATOR); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/utils/Context.sol"; /** * @title TransferValidation * @author Limit Break, Inc. * @notice A mix-in that can be combined with ERC-721 contracts to provide more granular hooks. * Openzeppelin's ERC721 contract only provides hooks for before and after transfer. This allows * developers to validate or customize transfers within the context of a mint, a burn, or a transfer. */ abstract contract TransferValidation is Context { /// @dev Thrown when the from and to address are both the zero address. error ShouldNotMintToBurnAddress(); /*************************************************************************/ /* Transfers Without Amounts */ /*************************************************************************/ /// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks. function _validateBeforeTransfer(address from, address to, uint256 tokenId) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _preValidateMint(_msgSender(), to, tokenId, msg.value); } else if(toZeroAddress) { _preValidateBurn(_msgSender(), from, tokenId, msg.value); } else { _preValidateTransfer(_msgSender(), from, to, tokenId, msg.value); } } /// @dev Inheriting contracts should call this function in the _afterTokenTransfer function to get more granular hooks. function _validateAfterTransfer(address from, address to, uint256 tokenId) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _postValidateMint(_msgSender(), to, tokenId, msg.value); } else if(toZeroAddress) { _postValidateBurn(_msgSender(), from, tokenId, msg.value); } else { _postValidateTransfer(_msgSender(), from, to, tokenId, msg.value); } } /// @dev Optional validation hook that fires before a mint function _preValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a mint function _postValidateMint(address caller, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a burn function _preValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a burn function _postValidateBurn(address caller, address from, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a transfer function _preValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a transfer function _postValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 value) internal virtual {} /*************************************************************************/ /* Transfers With Amounts */ /*************************************************************************/ /// @dev Inheriting contracts should call this function in the _beforeTokenTransfer function to get more granular hooks. function _validateBeforeTransfer(address from, address to, uint256 tokenId, uint256 amount) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _preValidateMint(_msgSender(), to, tokenId, amount, msg.value); } else if(toZeroAddress) { _preValidateBurn(_msgSender(), from, tokenId, amount, msg.value); } else { _preValidateTransfer(_msgSender(), from, to, tokenId, amount, msg.value); } } /// @dev Inheriting contracts should call this function in the _afterTokenTransfer function to get more granular hooks. function _validateAfterTransfer(address from, address to, uint256 tokenId, uint256 amount) internal virtual { bool fromZeroAddress = from == address(0); bool toZeroAddress = to == address(0); if(fromZeroAddress && toZeroAddress) { revert ShouldNotMintToBurnAddress(); } else if(fromZeroAddress) { _postValidateMint(_msgSender(), to, tokenId, amount, msg.value); } else if(toZeroAddress) { _postValidateBurn(_msgSender(), from, tokenId, amount, msg.value); } else { _postValidateTransfer(_msgSender(), from, to, tokenId, amount, msg.value); } } /// @dev Optional validation hook that fires before a mint function _preValidateMint(address caller, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a mint function _postValidateMint(address caller, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a burn function _preValidateBurn(address caller, address from, uint256 tokenId, uint256 amount, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a burn function _postValidateBurn(address caller, address from, uint256 tokenId, uint256 amount, uint256 value) internal virtual {} /// @dev Optional validation hook that fires before a transfer function _preValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {} /// @dev Optional validation hook that fires after a transfer function _postValidateTransfer(address caller, address from, address to, uint256 tokenId, uint256 amount, uint256 value) internal virtual {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @dev Constant bytes32 value of 0x000...000 bytes32 constant ZERO_BYTES32 = bytes32(0); /// @dev Constant value of 0 uint256 constant ZERO = 0; /// @dev Constant value of 1 uint256 constant ONE = 1; /// @dev Constant value representing an open order in storage uint8 constant ORDER_STATE_OPEN = 0; /// @dev Constant value representing a filled order in storage uint8 constant ORDER_STATE_FILLED = 1; /// @dev Constant value representing a cancelled order in storage uint8 constant ORDER_STATE_CANCELLED = 2; /// @dev Constant value representing the ERC721 token type for signatures and transfer hooks uint256 constant TOKEN_TYPE_ERC721 = 721; /// @dev Constant value representing the ERC1155 token type for signatures and transfer hooks uint256 constant TOKEN_TYPE_ERC1155 = 1155; /// @dev Constant value representing the ERC20 token type for signatures and transfer hooks uint256 constant TOKEN_TYPE_ERC20 = 20; /// @dev Constant value to mask the upper bits of a signature that uses a packed `vs` value to extract `s` bytes32 constant UPPER_BIT_MASK = 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff; /// @dev EIP-712 typehash used for validating signature based stored approvals bytes32 constant UPDATE_APPROVAL_TYPEHASH = keccak256("UpdateApprovalBySignature(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 approvalExpiration,uint256 sigDeadline,uint256 masterNonce)"); /// @dev EIP-712 typehash used for validating a single use permit without additional data bytes32 constant SINGLE_USE_PERMIT_TYPEHASH = keccak256("PermitTransferFrom(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 expiration,uint256 masterNonce)"); /// @dev EIP-712 typehash used for validating a single use permit with additional data string constant SINGLE_USE_PERMIT_TRANSFER_ADVANCED_TYPEHASH_STUB = "PermitTransferFromWithAdditionalData(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 nonce,address operator,uint256 expiration,uint256 masterNonce,"; /// @dev EIP-712 typehash used for validating an order permit that updates storage as it fills string constant PERMIT_ORDER_ADVANCED_TYPEHASH_STUB = "PermitOrderWithAdditionalData(uint256 tokenType,address token,uint256 id,uint256 amount,uint256 salt,address operator,uint256 expiration,uint256 masterNonce,"; /// @dev Pausable flag for stored approval transfers of ERC721 assets uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC721 = 1 << 0; /// @dev Pausable flag for stored approval transfers of ERC1155 assets uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC1155 = 1 << 1; /// @dev Pausable flag for stored approval transfers of ERC20 assets uint256 constant PAUSABLE_APPROVAL_TRANSFER_FROM_ERC20 = 1 << 2; /// @dev Pausable flag for single use permit transfers of ERC721 assets uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC721 = 1 << 3; /// @dev Pausable flag for single use permit transfers of ERC1155 assets uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC1155 = 1 << 4; /// @dev Pausable flag for single use permit transfers of ERC20 assets uint256 constant PAUSABLE_PERMITTED_TRANSFER_FROM_ERC20 = 1 << 5; /// @dev Pausable flag for order fill transfers of ERC1155 assets uint256 constant PAUSABLE_ORDER_TRANSFER_FROM_ERC1155 = 1 << 6; /// @dev Pausable flag for order fill transfers of ERC20 assets uint256 constant PAUSABLE_ORDER_TRANSFER_FROM_ERC20 = 1 << 7;
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling 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 v4.9.0) (interfaces/IERC2981.sol) pragma solidity ^0.8.0; import "../utils/introspection/IERC165.sol"; /** * @dev Interface for the NFT Royalty Standard. * * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal * support for royalty payments across all NFT marketplaces and ecosystem participants. * * _Available since v4.5._ */ interface IERC2981 is IERC165 { /** * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. */ function royaltyInfo( uint256 tokenId, uint256 salePrice ) external view returns (address receiver, uint256 royaltyAmount); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be _NOT_ENTERED require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == _ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/common/ERC2981.sol) pragma solidity ^0.8.0; import "../../interfaces/IERC2981.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. * * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. * * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the * fee is specified in basis points by default. * * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. * * _Available since v4.5._ */ abstract contract ERC2981 is IERC2981, ERC165 { struct RoyaltyInfo { address receiver; uint96 royaltyFraction; } RoyaltyInfo private _defaultRoyaltyInfo; mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 tokenId, uint256 salePrice) public view virtual override returns (address, uint256) { RoyaltyInfo memory royalty = _tokenRoyaltyInfo[tokenId]; if (royalty.receiver == address(0)) { royalty = _defaultRoyaltyInfo; } uint256 royaltyAmount = (salePrice * royalty.royaltyFraction) / _feeDenominator(); return (royalty.receiver, royaltyAmount); } /** * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an * override. */ function _feeDenominator() internal pure virtual returns (uint96) { return 10000; } /** * @dev Sets the royalty information that all ids in this contract will default to. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: invalid receiver"); _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Removes default royalty information. */ function _deleteDefaultRoyalty() internal virtual { delete _defaultRoyaltyInfo; } /** * @dev Sets the royalty information for a specific token id, overriding the global default. * * Requirements: * * - `receiver` cannot be the zero address. * - `feeNumerator` cannot be greater than the fee denominator. */ function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual { require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); require(receiver != address(0), "ERC2981: Invalid parameters"); _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); } /** * @dev Resets royalty information for the token id back to the global default. */ function _resetTokenRoyalty(uint256 tokenId) internal virtual { delete _tokenRoyaltyInfo[tokenId]; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC1155/ERC1155.sol) pragma solidity ^0.8.0; import "./IERC1155.sol"; import "./IERC1155Receiver.sol"; import "./extensions/IERC1155MetadataURI.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the basic standard multi-token. * See https://eips.ethereum.org/EIPS/eip-1155 * Originally based on code by Enjin: https://github.com/enjin/erc-1155 * * _Available since v3.1._ */ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { using Address for address; // Mapping from token ID to account balances mapping(uint256 => mapping(address => uint256)) private _balances; // Mapping from account to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json string private _uri; /** * @dev See {_setURI}. */ constructor(string memory uri_) { _setURI(uri_); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155).interfaceId || interfaceId == type(IERC1155MetadataURI).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC1155MetadataURI-uri}. * * This implementation returns the same URI for *all* token types. It relies * on the token type ID substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * Clients calling this function must replace the `\{id\}` substring with the * actual token type ID. */ function uri(uint256) public view virtual override returns (string memory) { return _uri; } /** * @dev See {IERC1155-balanceOf}. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) public view virtual override returns (uint256) { require(account != address(0), "ERC1155: address zero is not a valid owner"); return _balances[id][account]; } /** * @dev See {IERC1155-balanceOfBatch}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch( address[] memory accounts, uint256[] memory ids ) public view virtual override returns (uint256[] memory) { require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch"); uint256[] memory batchBalances = new uint256[](accounts.length); for (uint256 i = 0; i < accounts.length; ++i) { batchBalances[i] = balanceOf(accounts[i], ids[i]); } return batchBalances; } /** * @dev See {IERC1155-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC1155-isApprovedForAll}. */ function isApprovedForAll(address account, address operator) public view virtual override returns (bool) { return _operatorApprovals[account][operator]; } /** * @dev See {IERC1155-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: caller is not token owner or approved" ); _safeTransferFrom(from, to, id, amount, data); } /** * @dev See {IERC1155-safeBatchTransferFrom}. */ function safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: caller is not token owner or approved" ); _safeBatchTransferFrom(from, to, ids, amounts, data); } /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); uint256[] memory ids = _asSingletonArray(id); uint256[] memory amounts = _asSingletonArray(amount); _beforeTokenTransfer(operator, from, to, ids, amounts, data); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; emit TransferSingle(operator, from, to, id, amount); _afterTokenTransfer(operator, from, to, ids, amounts, data); _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, ids, amounts, data); for (uint256 i = 0; i < ids.length; ++i) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; } emit TransferBatch(operator, from, to, ids, amounts); _afterTokenTransfer(operator, from, to, ids, amounts, data); _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data); } /** * @dev Sets a new URI for all token types, by relying on the token type ID * substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * By this mechanism, any occurrence of the `\{id\}` substring in either the * URI or any of the amounts in the JSON file at said URI will be replaced by * clients with the token type ID. * * For example, the `https://token-cdn-domain/\{id\}.json` URI would be * interpreted by clients as * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json` * for token type ID 0x4cce0. * * See {uri}. * * Because these URIs cannot be meaningfully represented by the {URI} event, * this function emits no events. */ function _setURI(string memory newuri) internal virtual { _uri = newuri; } /** * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _mint(address to, uint256 id, uint256 amount, bytes memory data) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); address operator = _msgSender(); uint256[] memory ids = _asSingletonArray(id); uint256[] memory amounts = _asSingletonArray(amount); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); _balances[id][to] += amount; emit TransferSingle(operator, address(0), to, id, amount); _afterTokenTransfer(operator, address(0), to, ids, amounts, data); _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); for (uint256 i = 0; i < ids.length; i++) { _balances[ids[i]][to] += amounts[i]; } emit TransferBatch(operator, address(0), to, ids, amounts); _afterTokenTransfer(operator, address(0), to, ids, amounts, data); _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data); } /** * @dev Destroys `amount` tokens of token type `id` from `from` * * Emits a {TransferSingle} event. * * Requirements: * * - `from` cannot be the zero address. * - `from` must have at least `amount` tokens of token type `id`. */ function _burn(address from, uint256 id, uint256 amount) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); address operator = _msgSender(); uint256[] memory ids = _asSingletonArray(id); uint256[] memory amounts = _asSingletonArray(amount); _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } emit TransferSingle(operator, from, address(0), id, amount); _afterTokenTransfer(operator, from, address(0), ids, amounts, ""); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. */ function _burnBatch(address from, uint256[] memory ids, uint256[] memory amounts) internal virtual { require(from != address(0), "ERC1155: burn from the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); for (uint256 i = 0; i < ids.length; i++) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][from] = fromBalance - amount; } } emit TransferBatch(operator, from, address(0), ids, amounts); _afterTokenTransfer(operator, from, address(0), ids, amounts, ""); } /** * @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, "ERC1155: setting approval status for self"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Hook that is called before any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `ids` and `amounts` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} /** * @dev Hook that is called after any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `id` and `amount` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} function _doSafeTransferAcceptanceCheck( address operator, address from, address to, uint256 id, uint256 amount, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) { if (response != IERC1155Receiver.onERC1155Received.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non-ERC1155Receiver implementer"); } } } function _doSafeBatchTransferAcceptanceCheck( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns ( bytes4 response ) { if (response != IERC1155Receiver.onERC1155BatchReceived.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non-ERC1155Receiver implementer"); } } } function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) { uint256[] memory array = new uint256[](1); array[0] = element; return array; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol) pragma solidity ^0.8.0; import "../IERC1155.sol"; /** * @dev Interface of the optional ERC1155MetadataExtension interface, as defined * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. * * _Available since v3.1._ */ interface IERC1155MetadataURI is IERC1155 { /** * @dev Returns the URI for token type `id`. * * If the `\{id\}` substring is present in the URI, it must be replaced by * clients with the actual token type ID. */ function uri(uint256 id) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC1155/IERC1155.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch( address[] calldata accounts, uint256[] calldata ids ) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes calldata data) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev _Available since v3.1._ */ interface IERC1155Receiver is IERC165 { /** * @dev Handles the receipt of a single ERC1155 token type. This function is * called at the end of a `safeTransferFrom` after the balance has been updated. * * NOTE: To accept the transfer, this must return * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` * (i.e. 0xf23a6e61, or its own function selector). * * @param operator The address which initiated the transfer (i.e. msg.sender) * @param from The address which previously owned the token * @param id The ID of the token being transferred * @param value The amount of tokens being transferred * @param data Additional data with no specified format * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed */ function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /** * @dev Handles the receipt of a multiple ERC1155 token types. This function * is called at the end of a `safeBatchTransferFrom` after the balances have * been updated. * * NOTE: To accept the transfer(s), this must return * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` * (i.e. 0xbc197c81, or its own function selector). * * @param operator The address which initiated the batch transfer (i.e. msg.sender) * @param from The address which previously owned the token * @param ids An array containing ids of each token being transferred (order and length must match values array) * @param values An array containing amounts of each token being transferred (order and length must match ids array) * @param data Additional data with no specified format * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed */ function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (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 * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [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://consensys.net/diligence/blog/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/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.4) (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; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../Strings.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV // Deprecated in v4.8 } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) { // 32 is the length in bytes of hash, // enforced by the type signature above /// @solidity memory-safe-assembly assembly { mstore(0x00, "\x19Ethereum Signed Message:\n32") mstore(0x1c, hash) message := keccak256(0x00, 0x3c) } } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, "\x19\x01") mstore(add(ptr, 0x02), domainSeparator) mstore(add(ptr, 0x22), structHash) data := keccak256(ptr, 0x42) } } /** * @dev Returns an Ethereum Signed Data with intended validator, created from a * `validator` and `data` according to the version 0 of EIP-191. * * See {recover}. */ function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x00", validator, data)); } }
// 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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; import "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value)))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.28; abstract contract PhaseMint { mapping(bytes32 => PhaseStats) public phasesStats; // Tracks stats for each phase /// @notice Stores the statistics of each phase, including total minted and per-user mints for each token ID. struct PhaseStats { uint256 mintedTotal; // Track total mints for the phase mapping(uint256 => uint256) mintedTotalByTokenId; // Track total mints per token ID mapping(address => mapping(uint256 => uint256)) mintedByUser; // Track mints per user and tokenId } /// @notice Checks if the phase constraints for minting are respected. /// @dev Ensures that the amount minted doesn't exceed phase or user limits. /// @param _to The address to mint the tokens to. /// @param _amount The number of tokens to mint. /// @param _tokenId The ID of the token to mint. /// @param _phaseID The identifier for the current minting phase. /// @param _maxPerTx The maximum number of tokens allowed per transaction. /// @param _maxPerUser The maximum number of tokens allowed per user for the phase. /// @param _maxPerPhase The total maximum number of tokens allowed for the phase. function _mintPhase( address _to, uint256 _amount, uint256 _tokenId, bytes32 _phaseID, uint256 _maxPerTx, uint256 _maxPerUser, uint256 _maxPerPhase, uint256 _maxPerPhasePerTokenId ) internal { PhaseStats storage currentPhaseStats = phasesStats[_phaseID]; if (_maxPerTx > 0) { require(_maxPerTx >= _amount, "Exceeds max per tx"); } if (_maxPerUser > 0) { require( currentPhaseStats.mintedByUser[_to][_tokenId] + _amount <= _maxPerUser, "Exceeds max per user" ); } if (_maxPerPhase > 0) { require( currentPhaseStats.mintedTotal + _amount <= _maxPerPhase, "Exceeds max per phase" ); } if (_maxPerPhasePerTokenId > 0) { require( currentPhaseStats.mintedTotalByTokenId[_tokenId] + _amount <= _maxPerPhasePerTokenId, "Exceeds max per phase per token ID" ); } currentPhaseStats.mintedTotal += _amount; currentPhaseStats.mintedByUser[_to][_tokenId] += _amount; currentPhaseStats.mintedTotalByTokenId[_tokenId] += _amount; } /// @notice Get the amount of tokens minted by a user for a specific token ID in the phase. /// @param _user The address of the user. /// @param _tokenId The ID of the token. /// @param _phaseID The identifier for the current minting phase. /// @return The amount of tokens minted by the user for the token ID. function mintedByUser( address _user, uint256 _tokenId, bytes32 _phaseID ) public view returns (uint256) { return phasesStats[_phaseID].mintedByUser[_user][_tokenId]; } /// @notice Get the total amount of tokens minted for a specific token ID in the phase. /// @param _tokenId The ID of the token. /// @param _phaseID The identifier for the current minting phase. /// @return The total amount of tokens minted for the token ID. function mintedTotalByTokenId( uint256 _tokenId, bytes32 _phaseID ) public view returns (uint256) { return phasesStats[_phaseID].mintedTotalByTokenId[_tokenId]; } /// @notice Get the total amount of tokens minted in the phase. /// @param _phaseID The identifier for the current minting phase. /// @return The total amount of tokens minted in the phase. function mintedTotal(bytes32 _phaseID) public view returns (uint256) { return phasesStats[_phaseID].mintedTotal; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.28; import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol"; abstract contract Signature { using ECDSA for bytes32; address private signer; // Authorized signer mapping(bytes32 => bool) public nonces; // Tracks used nonces to prevent replay attacks function _setSigner(address _signer) internal { require(_signer != address(0), "Invalid signer address"); signer = _signer; } /// @notice Verifies the cryptographic signature. /// @param data The hash of the data to verify. /// @param signature The signature to verify. /// @return True if the signature is valid, false otherwise. function _verifySignature( bytes32 data, bytes memory signature ) internal view returns (bool) { return data.toEthSignedMessageHash().recover(signature) == signer; } /// @notice Checks if the nonce is valid and hasn't been used. /// @param _nonce The nonce to check. /// @return True if the nonce is valid, false otherwise. function isValidNonce(bytes32 _nonce) public view returns (bool) { return !nonces[_nonce]; } function _invalidateNonce(bytes32 _nonce) internal { nonces[_nonce] = true; } }
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "paris", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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- 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)
0000000000000000000000002ee72b834fca2fe7f1be77cb77a19508262e2b4b00000000000000000000000028de0ac47063a42e340eb9f4aa9b1b048b2fd28d00000000000000000000000000000000000000000000000000000000000002b2
-----Decoded View---------------
Arg [0] : _signer (address): 0x2eE72B834Fca2fe7f1be77cb77A19508262e2b4B
Arg [1] : royaltyReceiver_ (address): 0x28De0Ac47063a42e340eB9F4aa9B1b048B2Fd28d
Arg [2] : royaltyFeeNumerator_ (uint96): 690
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000002ee72b834fca2fe7f1be77cb77a19508262e2b4b
Arg [1] : 00000000000000000000000028de0ac47063a42e340eb9f4aa9b1b048b2fd28d
Arg [2] : 00000000000000000000000000000000000000000000000000000000000002b2
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