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{
"language": "Solidity",
"sources": {
"jdasljdlkasjdklasjdklasjdklasjdkljaskldjasdasd_CreatedByNFTGM.sol": {
"content": "\n// SPDX-License-Identifier: MIT\npragma solidity ^0.8.7;\n\n/////////////////////////////////////////////////////////\n// all-in-one NFT generator at https://nftgm.art //\n/////////////////////////////////////////////////////////\n\nimport \"@nftgm/GMERC721A.sol\";\n\n\n/////////////////////////////////////////////////////\n// __ _ _______ _______ _______ __ __ //\n// | | | || || || || |_| | //\n// | |_| || ___||_ _|| ___|| | //\n// | || |___ | | | | __ | | //\n// | _ || ___| | | | || || | //\n// | | | || | | | | |_| || ||_|| | //\n// |_| |__||___| |___| |_______||_| |_| //\n/////////////////////////////////////////////////////\n\n\ncontract jdasljdlkasjdklasjdklasjdklasjdkljaskldjasdasd_CreatedByNFTGM is GMERC721A {\n\n PreSaleInfo public _preSaleInfo = PreSaleInfo(\n true,\n 1660300500,\n 1660300800,\n 100000000000000,\n 1,\n 1,\n true\n );\n \n PublicSaleInfo public _publicSaleInfo = PublicSaleInfo(\n 1660301100,\n 1660301400,\n 100000000000000,\n 1\n );\n address[] _receivers = [0x6EB2bfe08DA170d18F7ED7B27Ec28b23fc69cEF2];\n uint256[] _basisPoints = [5000];\n\n\n constructor(\n ) GMERC721A(\n unicode\"jdasljdlkasjdklasjdklasjdklasjdkljaskldjasdasd\",\n unicode\"jjjjjjjjjjjjjjjdddddddddddddddd\",\n \"https://api.nftgm.art/api/v1/nftgm/metadata/eth/62f62b87caadf459c54893c4/\",\n 10,\n 0x6EB2bfe08DA170d18F7ED7B27Ec28b23fc69cEF2,\n _preSaleInfo,\n _publicSaleInfo,\n _receivers,\n _basisPoints\n ) {\n }\n}\n"
},
"@nftgm/ERC721A.sol": {
"content": "// SPDX-License-Identifier: MIT\n\n// File erc721a/contracts/ERC721A.sol@v3.1.0\n// Creator: Chiru Labs\npragma solidity ^0.8.7;\n error ApprovalCallerNotOwnerNorApproved();\n error ApprovalQueryForNonexistentToken();\n error ApproveToCaller();\n error ApprovalToCurrentOwner();\n error BalanceQueryForZeroAddress();\n error MintToZeroAddress();\n error MintZeroQuantity();\n error OwnerQueryForNonexistentToken();\n error TransferCallerNotOwnerNorApproved();\n error TransferFromIncorrectOwner();\n error TransferToNonERC721ReceiverImplementer();\n error TransferToZeroAddress();\n error URIQueryForNonexistentToken();\n\n\nimport \"@openzeppelin/IERC721.sol\";\nimport \"@openzeppelin/IERC721Receiver.sol\";\nimport \"@openzeppelin/IERC721Metadata.sol\";\nimport \"@openzeppelin/IERC721Enumerable.sol\";\nimport \"@openzeppelin/Address.sol\";\nimport \"@openzeppelin/Context.sol\";\nimport \"@openzeppelin/Strings.sol\";\nimport \"@openzeppelin/ERC165.sol\";\n\ncontract ERC721A is Context, ERC165, IERC721, IERC721Metadata {\n using Address for address;\n using Strings for uint256;\n\n // Compiler will pack this into a single 256bit word.\n struct TokenOwnership {\n // The address of the owner.\n address addr;\n // Keeps track of the start time of ownership with minimal overhead for tokenomics.\n uint64 startTimestamp;\n // Whether the token has been burned.\n bool burned;\n }\n\n // Compiler will pack this into a single 256bit word.\n struct AddressData {\n // Realistically, 2**64-1 is more than enough.\n uint64 balance;\n // Keeps track of mint count with minimal overhead for tokenomics.\n uint64 numberMinted;\n // Keeps track of burn count with minimal overhead for tokenomics.\n uint64 numberBurned;\n // For miscellaneous variable(s) pertaining to the address\n // (e.g. number of whitelist mint slots used).\n // If there are multiple variables, please pack them into a uint64.\n uint64 aux;\n }\n\n // The tokenId of the next token to be minted.\n uint256 internal _currentIndex;\n\n // The number of tokens burned.\n uint256 internal _burnCounter;\n\n // Token name\n string private _name;\n\n // Token symbol\n string private _symbol;\n\n // Mapping from token ID to ownership details\n // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.\n mapping(uint256 => TokenOwnership) internal _ownerships;\n\n // Mapping owner address to address data\n mapping(address => AddressData) private _addressData;\n\n // Mapping from token ID to approved address\n mapping(uint256 => address) private _tokenApprovals;\n\n // Mapping from owner to operator approvals\n mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n _currentIndex = _startTokenId();\n }\n\n /**\n * To change the starting tokenId, please override this function.\n */\n function _startTokenId() internal view virtual returns (uint256) {\n return 0;\n }\n\n /**\n * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.\n */\n function totalSupply() public view returns (uint256) {\n // Counter underflow is impossible as _burnCounter cannot be incremented\n // more than _currentIndex - _startTokenId() times\n unchecked {\n return _currentIndex - _burnCounter - _startTokenId();\n }\n }\n\n /**\n * Returns the total amount of tokens minted in the contract.\n */\n function _totalMinted() internal view returns (uint256) {\n // Counter underflow is impossible as _currentIndex does not decrement,\n // and it is initialized to _startTokenId()\n unchecked {\n return _currentIndex - _startTokenId();\n }\n }\n\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n return\n interfaceId == type(IERC721).interfaceId ||\n interfaceId == type(IERC721Metadata).interfaceId ||\n super.supportsInterface(interfaceId);\n }\n\n /**\n * @dev See {IERC721-balanceOf}.\n */\n function balanceOf(address owner) public view override returns (uint256) {\n if (owner == address(0)) revert BalanceQueryForZeroAddress();\n return uint256(_addressData[owner].balance);\n }\n\n /**\n * Returns the number of tokens minted by `owner`.\n */\n function _numberMinted(address owner) internal view returns (uint256) {\n return uint256(_addressData[owner].numberMinted);\n }\n\n /**\n * Returns the number of tokens burned by or on behalf of `owner`.\n */\n function _numberBurned(address owner) internal view returns (uint256) {\n return uint256(_addressData[owner].numberBurned);\n }\n\n /**\n * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).\n */\n function _getAux(address owner) internal view returns (uint64) {\n return _addressData[owner].aux;\n }\n\n /**\n * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).\n * If there are multiple variables, please pack them into a uint64.\n */\n function _setAux(address owner, uint64 aux) internal {\n _addressData[owner].aux = aux;\n }\n\n /**\n * Gas spent here starts off proportional to the maximum mint batch size.\n * It gradually moves to O(1) as tokens get transferred around in the collection over time.\n */\n function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {\n uint256 curr = tokenId;\n\n unchecked {\n if (_startTokenId() <= curr && curr < _currentIndex) {\n TokenOwnership memory ownership = _ownerships[curr];\n if (!ownership.burned) {\n if (ownership.addr != address(0)) {\n return ownership;\n }\n // Invariant:\n // There will always be an ownership that has an address and is not burned\n // before an ownership that does not have an address and is not burned.\n // Hence, curr will not underflow.\n while (true) {\n curr--;\n ownership = _ownerships[curr];\n if (ownership.addr != address(0)) {\n return ownership;\n }\n }\n }\n }\n }\n revert OwnerQueryForNonexistentToken();\n }\n\n /**\n * @dev See {IERC721-ownerOf}.\n */\n function ownerOf(uint256 tokenId) public view override returns (address) {\n return _ownershipOf(tokenId).addr;\n }\n\n /**\n * @dev See {IERC721Metadata-name}.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev See {IERC721Metadata-symbol}.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev See {IERC721Metadata-tokenURI}.\n */\n function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n if (!_exists(tokenId)) revert URIQueryForNonexistentToken();\n\n string memory baseURI = _baseURI();\n return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : '';\n }\n\n /**\n * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n * by default, can be overriden in child contracts.\n */\n function _baseURI() internal view virtual returns (string memory) {\n return '';\n }\n\n /**\n * @dev See {IERC721-approve}.\n */\n function approve(address to, uint256 tokenId) public override {\n address owner = ERC721A.ownerOf(tokenId);\n if (to == owner) revert ApprovalToCurrentOwner();\n\n if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {\n revert ApprovalCallerNotOwnerNorApproved();\n }\n\n _approve(to, tokenId, owner);\n }\n\n /**\n * @dev See {IERC721-getApproved}.\n */\n function getApproved(uint256 tokenId) public view override returns (address) {\n if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();\n\n return _tokenApprovals[tokenId];\n }\n\n /**\n * @dev See {IERC721-setApprovalForAll}\n */\n function setApprovalForAll(address operator, bool approved) public virtual override {\n if (operator == _msgSender()) revert ApproveToCaller();\n\n _operatorApprovals[_msgSender()][operator] = approved;\n emit ApprovalForAll(_msgSender(), operator, approved);\n }\n\n /**\n * @dev See {IERC721-isApprovedForAll}.\n */\n function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n return _operatorApprovals[owner][operator];\n }\n\n /**\n * @dev See {IERC721-transferFrom}.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n _transfer(from, to, tokenId);\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) public virtual override {\n safeTransferFrom(from, to, tokenId, '');\n }\n\n /**\n * @dev See {IERC721-safeTransferFrom}.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) public virtual override {\n _transfer(from, to, tokenId);\n if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n\n /**\n * @dev Returns whether `tokenId` exists.\n *\n * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n *\n * Tokens start existing when they are minted (`_mint`),\n */\n function _exists(uint256 tokenId) internal view returns (bool) {\n return _startTokenId() <= tokenId && tokenId < _currentIndex &&\n !_ownerships[tokenId].burned;\n }\n\n function _safeMint(address to, uint256 quantity) internal {\n _safeMint(to, quantity, '');\n }\n\n /**\n * @dev Safely mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event.\n */\n function _safeMint(\n address to,\n uint256 quantity,\n bytes memory _data\n ) internal {\n _mint(to, quantity, _data, true);\n }\n\n /**\n * @dev Mints `quantity` tokens and transfers them to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `quantity` must be greater than 0.\n *\n * Emits a {Transfer} event.\n */\n function _mint(\n address to,\n uint256 quantity,\n bytes memory _data,\n bool safe\n ) internal {\n uint256 startTokenId = _currentIndex;\n if (to == address(0)) revert MintToZeroAddress();\n if (quantity == 0) revert MintZeroQuantity();\n\n _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n // Overflows are incredibly unrealistic.\n // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1\n // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1\n unchecked {\n _addressData[to].balance += uint64(quantity);\n _addressData[to].numberMinted += uint64(quantity);\n\n _ownerships[startTokenId].addr = to;\n _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);\n\n uint256 updatedIndex = startTokenId;\n uint256 end = updatedIndex + quantity;\n\n if (safe && to.isContract()) {\n do {\n emit Transfer(address(0), to, updatedIndex);\n if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {\n revert TransferToNonERC721ReceiverImplementer();\n }\n }\n while (updatedIndex != end);\n // Reentrancy protection\n if (_currentIndex != startTokenId) revert();\n } else {\n do {\n emit Transfer(address(0), to, updatedIndex++);\n }\n while (updatedIndex != end);\n }\n _currentIndex = updatedIndex;\n }\n _afterTokenTransfers(address(0), to, startTokenId, quantity);\n }\n\n /**\n * @dev Transfers `tokenId` from `from` to `to`.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n *\n * Emits a {Transfer} event.\n */\n function _transfer(\n address from,\n address to,\n uint256 tokenId\n ) private {\n TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\n\n if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();\n\n bool isApprovedOrOwner = (_msgSender() == from ||\n isApprovedForAll(from, _msgSender()) ||\n getApproved(tokenId) == _msgSender());\n\n if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\n if (to == address(0)) revert TransferToZeroAddress();\n\n _beforeTokenTransfers(from, to, tokenId, 1);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId, from);\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.\n unchecked {\n _addressData[from].balance -= 1;\n _addressData[to].balance += 1;\n\n TokenOwnership storage currSlot = _ownerships[tokenId];\n currSlot.addr = to;\n currSlot.startTimestamp = uint64(block.timestamp);\n\n // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.\n // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.\n uint256 nextTokenId = tokenId + 1;\n TokenOwnership storage nextSlot = _ownerships[nextTokenId];\n if (nextSlot.addr == address(0)) {\n // This will suffice for checking _exists(nextTokenId),\n // as a burned slot cannot contain the zero address.\n if (nextTokenId != _currentIndex) {\n nextSlot.addr = from;\n nextSlot.startTimestamp = prevOwnership.startTimestamp;\n }\n }\n }\n\n emit Transfer(from, to, tokenId);\n _afterTokenTransfers(from, to, tokenId, 1);\n }\n\n /**\n * @dev This is equivalent to _burn(tokenId, false)\n */\n function _burn(uint256 tokenId) internal virtual {\n _burn(tokenId, false);\n }\n\n /**\n * @dev Destroys `tokenId`.\n * The approval is cleared when the token is burned.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n *\n * Emits a {Transfer} event.\n */\n function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n TokenOwnership memory prevOwnership = _ownershipOf(tokenId);\n\n address from = prevOwnership.addr;\n\n if (approvalCheck) {\n bool isApprovedOrOwner = (_msgSender() == from ||\n isApprovedForAll(from, _msgSender()) ||\n getApproved(tokenId) == _msgSender());\n\n if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();\n }\n\n _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n // Clear approvals from the previous owner\n _approve(address(0), tokenId, from);\n\n // Underflow of the sender's balance is impossible because we check for\n // ownership above and the recipient's balance can't realistically overflow.\n // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.\n unchecked {\n AddressData storage addressData = _addressData[from];\n addressData.balance -= 1;\n addressData.numberBurned += 1;\n\n // Keep track of who burned the token, and the timestamp of burning.\n TokenOwnership storage currSlot = _ownerships[tokenId];\n currSlot.addr = from;\n currSlot.startTimestamp = uint64(block.timestamp);\n currSlot.burned = true;\n\n // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.\n // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.\n uint256 nextTokenId = tokenId + 1;\n TokenOwnership storage nextSlot = _ownerships[nextTokenId];\n if (nextSlot.addr == address(0)) {\n // This will suffice for checking _exists(nextTokenId),\n // as a burned slot cannot contain the zero address.\n if (nextTokenId != _currentIndex) {\n nextSlot.addr = from;\n nextSlot.startTimestamp = prevOwnership.startTimestamp;\n }\n }\n }\n\n emit Transfer(from, address(0), tokenId);\n _afterTokenTransfers(from, address(0), tokenId, 1);\n\n // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n unchecked {\n _burnCounter++;\n }\n }\n\n /**\n * @dev Approve `to` to operate on `tokenId`\n *\n * Emits a {Approval} event.\n */\n function _approve(\n address to,\n uint256 tokenId,\n address owner\n ) private {\n _tokenApprovals[tokenId] = to;\n emit Approval(owner, to, tokenId);\n }\n\n /**\n * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n *\n * @param from address representing the previous owner of the given token ID\n * @param to target address that will receive the tokens\n * @param tokenId uint256 ID of the token to be transferred\n * @param _data bytes optional data to send along with the call\n * @return bool whether the call correctly returned the expected magic value\n */\n function _checkContractOnERC721Received(\n address from,\n address to,\n uint256 tokenId,\n bytes memory _data\n ) private returns (bool) {\n try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {\n return retval == IERC721Receiver(to).onERC721Received.selector;\n } catch (bytes memory reason) {\n if (reason.length == 0) {\n revert TransferToNonERC721ReceiverImplementer();\n } else {\n assembly {\n revert(add(32, reason), mload(reason))\n }\n }\n }\n }\n\n /**\n * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.\n * And also called before burning one token.\n *\n * startTokenId - the first token id to be transferred\n * quantity - the amount to be transferred\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n * transferred to `to`.\n * - When `from` is zero, `tokenId` will be minted for `to`.\n * - When `to` is zero, `tokenId` will be burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _beforeTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes\n * minting.\n * And also called after one token has been burned.\n *\n * startTokenId - the first token id to be transferred\n * quantity - the amount to be transferred\n *\n * Calling conditions:\n *\n * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n * transferred to `to`.\n * - When `from` is zero, `tokenId` has been minted for `to`.\n * - When `to` is zero, `tokenId` has been burned by `from`.\n * - `from` and `to` are never both zero.\n */\n function _afterTokenTransfers(\n address from,\n address to,\n uint256 startTokenId,\n uint256 quantity\n ) internal virtual {}\n}\n"
},
"@nftgm/GMERC721A.sol": {
"content": "pragma solidity ^0.8.7;\n\nimport \"@nftgm/ERC721A.sol\";\nimport \"@openzeppelin/Ownable.sol\";\nimport \"@openzeppelin/ECDSA.sol\";\n\n\n error SaleInactive();\n error SoldOut();\n error InvalidPrice();\n error WithdrawFailed();\n error InvalidQuantity();\n error InvalidProof();\n\n\ncontract GMERC721A is ERC721A, Ownable {\n uint256 public supply;\n uint256 private presaleCount;\n mapping(address => uint256) private airdropAmount;\n\n struct PreSaleInfo {\n bool open;\n uint64 startTimestamp;\n uint64 endTimestamp;\n uint256 presalePrice;\n uint64 max_mint;\n uint64 presaleSupply;\n bool whiteOpen;\n }\n\n\n struct PublicSaleInfo {\n uint64 startTimestamp;\n uint64 endTimestamp;\n uint256 publicSalePrice;\n uint64 max_mint;\n }\n\n PreSaleInfo public preSaleInfo;\n PublicSaleInfo public publicSaleInfo;\n\n string public _baseTokenURI;\n\n address public withdrawAddresses;\n\n address[] public receivers;\n uint256[] public basisPoints;\n\n // TODO: update Address\n address public validator = 0x1dAc6e36d28EDEF697Be57aCb75c46a63f65A113;\n\n constructor(\n string memory _name,\n string memory _symbol,\n string memory _baseUri,\n uint256 _supply,\n address _withdrawAddress,\n PreSaleInfo memory _preSaleInfo,\n PublicSaleInfo memory _publicSaleInfo,\n address[] memory _receivers,\n uint256[] memory _basisPoints\n ) ERC721A(_name, _symbol) {\n _baseTokenURI = _baseUri;\n supply = _supply;\n withdrawAddresses = _withdrawAddress;\n preSaleInfo = _preSaleInfo;\n publicSaleInfo = _publicSaleInfo;\n receivers = _receivers;\n basisPoints = _basisPoints;\n }\n\n function mint(uint256 qty) external payable {\n if (block.timestamp < publicSaleInfo.startTimestamp || block.timestamp > publicSaleInfo.endTimestamp) revert SaleInactive();\n if (_currentIndex + (qty - 1) > supply) revert SoldOut();\n if (msg.value != publicSaleInfo.publicSalePrice * qty) revert InvalidPrice();\n uint256 preSaleMint = _getAux(msg.sender);\n\n uint256 publicMint = _numberMinted(msg.sender) - preSaleMint + qty - getAirdropMint(msg.sender);\n if (publicMint > publicSaleInfo.max_mint) revert InvalidQuantity();\n\n _safeMint(msg.sender, qty);\n }\n\n function presale(uint64 qty, bytes calldata signature) external payable {\n if (!preSaleInfo.open) revert SaleInactive();\n if (block.timestamp < preSaleInfo.startTimestamp || block.timestamp > preSaleInfo.endTimestamp) revert SaleInactive();\n if (presaleCount + qty > preSaleInfo.presaleSupply) revert SoldOut();\n if (msg.value != preSaleInfo.presalePrice * qty) revert InvalidPrice();\n if (preSaleInfo.whiteOpen) {\n checkWhitelistMintValidator(msg.sender, signature);\n }\n uint64 preSaleMint = getPreSaleMint(msg.sender) + qty;\n if (preSaleMint > preSaleInfo.max_mint) revert InvalidQuantity();\n\n _safeMint(msg.sender, qty);\n _setAux(msg.sender, preSaleMint);\n presaleCount += qty;\n }\n\n function checkWhitelistMintValidator(address mintToAddress, bytes memory validatorSig) public view {\n bytes32 validatorHash = keccak256(abi.encodePacked(mintToAddress));\n checkSign(validatorSig, ECDSA.toEthSignedMessageHash(validatorHash), validator, \"invalid validator sign!\");\n }\n\n function checkSign(bytes memory sign, bytes32 hashCode, address signer, string memory words) public pure {\n require(ECDSA.recover(hashCode, sign) == signer, words);\n }\n\n\n function getPreSaleMint(address owner) public view returns (uint64) {\n return _getAux(owner);\n }\n\n function getPreSaleCount() public view returns (uint256) {\n return presaleCount;\n }\n\n\n function getAirdropMint(address owner) public view returns (uint256) {\n return airdropAmount[owner];\n }\n\n function _startTokenId() internal view virtual override returns (uint256) {\n return 1;\n }\n\n function _baseURI() internal view virtual override returns (string memory) {\n return _baseTokenURI;\n }\n\n function setBaseURI(string memory baseURI) external onlyOwner {\n _baseTokenURI = baseURI;\n }\n\n function setPublicSaleInfo(PublicSaleInfo memory _publicSaleInfo) external onlyOwner {\n publicSaleInfo = _publicSaleInfo;\n }\n\n function setPresaleInfo(PreSaleInfo memory _preSaleInfo) external onlyOwner {\n preSaleInfo = _preSaleInfo;\n }\n\n function freeMint(uint256 qty, address recipient) external onlyOwner {\n if (_currentIndex + (qty - 1) > supply) revert SoldOut();\n _safeMint(recipient, qty);\n }\n\n function airdrop(address[] memory recipients, uint256[] memory qtys) external onlyOwner {\n require(recipients.length == qtys.length, \"Invalid input\");\n uint256 total = 0;\n for (uint i = 0; i < qtys.length; i++) {\n total += qtys[i];\n }\n if (_currentIndex + (total - 1) > supply) revert SoldOut();\n\n for (uint i = 0; i < recipients.length; i++) {\n airdropAmount[recipients[i]] += qtys[i];\n _safeMint(recipients[i], qtys[i]);\n }\n }\n\n function withdraw() external onlyOwner {\n uint256 balance = address(this).balance;\n (bool success,) = withdrawAddresses.call{value : balance}(\"\");\n if (!success) revert WithdrawFailed();\n }\n\n function setRoyalties(address payable[] calldata _receivers, uint256[] calldata _basisPoints) external onlyOwner {\n receivers = _receivers;\n basisPoints = _basisPoints;\n require(receivers.length == basisPoints.length, \"Invalid input\");\n uint256 totalBasisPoints;\n for (uint i = 0; i < basisPoints.length; i++) {\n totalBasisPoints += basisPoints[i];\n }\n require(totalBasisPoints < 10000, \"Invalid total royalties\");\n }\n\n function royaltyInfo(uint256 tokenId, uint256 value) external view virtual returns (address, uint256) {\n require(_exists(tokenId), \"Nonexistent token\");\n require(receivers.length <= 1, \"More than 1 royalty receiver\");\n\n if (receivers.length == 0) {\n return (address(this), 0);\n }\n return (receivers[0], basisPoints[0] * value / 10000);\n }\n\n /**\n * @dev EIP-2981\n *\n * bytes4(keccak256(\"royaltyInfo(uint256,uint256)\")) == 0x2a55205a\n *\n * => 0x2a55205a = 0x2a55205a\n */\n bytes4 private constant _INTERFACE_ID_ROYALTIES_EIP2981 = 0x2a55205a;\n\n function supportsInterface(bytes4 interfaceId)\n public\n view\n override(ERC721A)\n returns (bool)\n {\n return super.supportsInterface(interfaceId) || interfaceId == _INTERFACE_ID_ROYALTIES_EIP2981;\n }\n}"
},
"@openzeppelin/Address.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}"
},
"@openzeppelin/Context.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n"
},
"@openzeppelin/ECDSA.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/Strings.sol\";\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSA {\n enum RecoverError {\n NoError,\n InvalidSignature,\n InvalidSignatureLength,\n InvalidSignatureS,\n InvalidSignatureV\n }\n\n function _throwError(RecoverError error) private pure {\n if (error == RecoverError.NoError) {\n return; // no error: do nothing\n } else if (error == RecoverError.InvalidSignature) {\n revert(\"ECDSA: invalid signature\");\n } else if (error == RecoverError.InvalidSignatureLength) {\n revert(\"ECDSA: invalid signature length\");\n } else if (error == RecoverError.InvalidSignatureS) {\n revert(\"ECDSA: invalid signature 's' value\");\n } else if (error == RecoverError.InvalidSignatureV) {\n revert(\"ECDSA: invalid signature 'v' value\");\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature` or error string. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n *\n * Documentation for signature generation:\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n *\n * _Available since v4.3._\n */\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n // Check the signature length\n // - case 65: r,s,v signature (standard)\n // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n return tryRecover(hash, v, r, s);\n } else if (signature.length == 64) {\n bytes32 r;\n bytes32 vs;\n // ecrecover takes the signature parameters, and the only way to get them\n // currently is to use assembly.\n assembly {\n r := mload(add(signature, 0x20))\n vs := mload(add(signature, 0x40))\n }\n return tryRecover(hash, r, vs);\n } else {\n return (address(0), RecoverError.InvalidSignatureLength);\n }\n }\n\n /**\n * @dev Returns the address that signed a hashed message (`hash`) with\n * `signature`. This address can then be used for verification purposes.\n *\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n * this function rejects them by requiring the `s` value to be in the lower\n * half order, and the `v` value to be either 27 or 28.\n *\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n * verification to be secure: it is possible to craft signatures that\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n * this is by receiving a hash of the original message (which may otherwise\n * be too long), and then calling {toEthSignedMessageHash} on it.\n */\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, signature);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n *\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address, RecoverError) {\n bytes32 s;\n uint8 v;\n assembly {\n s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)\n v := add(shr(255, vs), 27)\n }\n return tryRecover(hash, v, r, s);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n *\n * _Available since v4.2._\n */\n function recover(\n bytes32 hash,\n bytes32 r,\n bytes32 vs\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n * `r` and `s` signature fields separately.\n *\n * _Available since v4.3._\n */\n function tryRecover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address, RecoverError) {\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n //\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n // these malleable signatures as well.\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n return (address(0), RecoverError.InvalidSignatureS);\n }\n if (v != 27 && v != 28) {\n return (address(0), RecoverError.InvalidSignatureV);\n }\n\n // If the signature is valid (and not malleable), return the signer address\n address signer = ecrecover(hash, v, r, s);\n if (signer == address(0)) {\n return (address(0), RecoverError.InvalidSignature);\n }\n\n return (signer, RecoverError.NoError);\n }\n\n /**\n * @dev Overload of {ECDSA-recover} that receives the `v`,\n * `r` and `s` signature fields separately.\n */\n function recover(\n bytes32 hash,\n uint8 v,\n bytes32 r,\n bytes32 s\n ) internal pure returns (address) {\n (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n _throwError(error);\n return recovered;\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\n // 32 is the length in bytes of hash,\n // enforced by the type signature above\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n32\", hash));\n }\n\n /**\n * @dev Returns an Ethereum Signed Message, created from `s`. This\n * produces hash corresponding to the one signed with the\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n * JSON-RPC method as part of EIP-191.\n *\n * See {recover}.\n */\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", Strings.toString(s.length), s));\n }\n\n /**\n * @dev Returns an Ethereum Signed Typed Data, created from a\n * `domainSeparator` and a `structHash`. This produces hash corresponding\n * to the one signed with the\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n * JSON-RPC method as part of EIP-712.\n *\n * See {recover}.\n */\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\n return keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n }\n}\n"
},
"@openzeppelin/ERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n /**\n * @dev See {IERC165-supportsInterface}.\n */\n function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n return interfaceId == type(IERC165).interfaceId;\n }\n}\n"
},
"@openzeppelin/IERC165.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n /**\n * @dev Returns true if this contract implements the interface defined by\n * `interfaceId`. See the corresponding\n * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n * to learn more about how these ids are created.\n *\n * This function call must use less than 30 000 gas.\n */\n function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
},
"@openzeppelin/IERC721.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n /**\n * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n */\n event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n */\n event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n /**\n * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n */\n event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n /**\n * @dev Returns the number of tokens in ``owner``'s account.\n */\n function balanceOf(address owner) external view returns (uint256 balance);\n\n /**\n * @dev Returns the owner of the `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function ownerOf(uint256 tokenId) external view returns (address owner);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Transfers `tokenId` token from `from` to `to`.\n *\n * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 tokenId\n ) external;\n\n /**\n * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n * The approval is cleared when the token is transferred.\n *\n * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n *\n * Requirements:\n *\n * - The caller must own the token or be an approved operator.\n * - `tokenId` must exist.\n *\n * Emits an {Approval} event.\n */\n function approve(address to, uint256 tokenId) external;\n\n /**\n * @dev Returns the account approved for `tokenId` token.\n *\n * Requirements:\n *\n * - `tokenId` must exist.\n */\n function getApproved(uint256 tokenId) external view returns (address operator);\n\n /**\n * @dev Approve or remove `operator` as an operator for the caller.\n * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n *\n * Requirements:\n *\n * - The `operator` cannot be the caller.\n *\n * Emits an {ApprovalForAll} event.\n */\n function setApprovalForAll(address operator, bool _approved) external;\n\n /**\n * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n *\n * See {setApprovalForAll}\n */\n function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n /**\n * @dev Safely transfers `tokenId` token from `from` to `to`.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `tokenId` token must exist and be owned by `from`.\n * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n *\n * Emits a {Transfer} event.\n */\n function safeTransferFrom(\n address from,\n address to,\n uint256 tokenId,\n bytes calldata data\n ) external;\n}\n"
},
"@openzeppelin/IERC721Enumerable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Enumerable is IERC721 {\n /**\n * @dev Returns the total amount of tokens stored by the contract.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns a token ID owned by `owner` at a given `index` of its token list.\n * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.\n */\n function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);\n\n /**\n * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.\n * Use along with {totalSupply} to enumerate all tokens.\n */\n function tokenByIndex(uint256 index) external view returns (uint256);\n}\n"
},
"@openzeppelin/IERC721Metadata.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n /**\n * @dev Returns the token collection name.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the token collection symbol.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n */\n function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
},
"@openzeppelin/IERC721Receiver.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n /**\n * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n * by `operator` from `from`, this function is called.\n *\n * It must return its Solidity selector to confirm the token transfer.\n * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n *\n * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\n */\n function onERC721Received(\n address operator,\n address from,\n uint256 tokenId,\n bytes calldata data\n ) external returns (bytes4);\n}\n"
},
"@openzeppelin/Ownable.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"@openzeppelin/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n"
},
"@openzeppelin/Strings.sol": {
"content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n */\n function toString(uint256 value) internal pure returns (string memory) {\n // Inspired by OraclizeAPI's implementation - MIT licence\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n if (value == 0) {\n return \"0\";\n }\n uint256 temp = value;\n uint256 digits;\n while (temp != 0) {\n digits++;\n temp /= 10;\n }\n bytes memory buffer = new bytes(digits);\n while (value != 0) {\n digits -= 1;\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n value /= 10;\n }\n return string(buffer);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n */\n function toHexString(uint256 value) internal pure returns (string memory) {\n if (value == 0) {\n return \"0x00\";\n }\n uint256 temp = value;\n uint256 length = 0;\n while (temp != 0) {\n length++;\n temp >>= 8;\n }\n return toHexString(value, length);\n }\n\n /**\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n */\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n bytes memory buffer = new bytes(2 * length + 2);\n buffer[0] = \"0\";\n buffer[1] = \"x\";\n for (uint256 i = 2 * length + 1; i > 1; --i) {\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\n value >>= 4;\n }\n require(value == 0, \"Strings: hex length insufficient\");\n return string(buffer);\n }\n}\n"
}
},
"settings": {
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
}
}
} |