ERC-721
Overview
Max Total Supply
100 HYPERGEN
Holders
99
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
1 HYPERGENLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
TheHyperianGenesis
Compiler Version
v0.8.14+commit.80d49f37
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// NFTStandard.sol // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Pausable.sol"; import "@openzeppelin/contracts/interfaces/IERC2981.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; import "@openzeppelin/contracts/utils/Counters.sol"; import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol"; // Error messages. // // NFTStandard: Error 1 : client id array length must match the amount of tokens to be minted // NFTStandard: Error 2 : invalid client id #XYZ // NFTStandard: Error 3 : client id #XYZ is already minted // NFTStandard: Error 4 : get multi minting condition with nonexistent key // NFTStandard: Error 5 : beneficiary is not set // NFTStandard: Error 6 : no funds to withdraw // NFTStandard: Error 7 : failed to withdraw // NFTStandard: Error 8 : token id #XYZ does not exist // NFTStandard: Error 9 : token id #XYZ does not have its clientId // NFTStandard: Error 10 : URI query for nonexistent token // NFTStandard: Error 11 : the starting token id is greater than the ending token id // NFTStandard: Error 12 : royalty fee will exceed salePrice // NFTStandard: Error 13 : invalid receiver address // NFTStandard: Error 14 : invalid beneficiary address // NFTStandard: Error 15 : the starting block id is greater than the ending block // NFTStandard: Error 16 : maximum token amount per address can not be 0 // NFTStandard: Error 17 : starting block has to be greater than current block height // NFTStandard: Error 18 : the starting client id is greater than the ending client id // NFTStandard: Error 19 : client id can not be 0 // NFTStandard: Error 20 : given range contains minted token id // NFTStandard: Error 21 : given range overlaps a token range in minting condition ID #XYZ // NFTStandard: Error 22 : minting condition id #XYZ does not exist // NFTStandard: Error 23 : all tokens are minted // NFTStandard: Error 24 : tokens are not mintable in this block // NFTStandard: Error 25 : insufficient funds // NFTStandard: Error 26 : it exceeds the remaining mintable tokens // NFTStandard: Error 27 : it exceeds the maximum token amount per address // NFTStandard: Error 28 : failed to refund // NFTStandard: Error 29 : not whitelisted // NFTStandard: Error 30 : invalid amount per address /** * * @dev Library for managing an enumerable minting condition * @dev inspired by Openzeppelin enumerable map * */ library EnumerableSale { using EnumerableSet for EnumerableSet.UintSet; using Counters for Counters.Counter; using Strings for uint256; // @dev a common struct to manage a range struct Range { uint256 _startId; uint256 _endId; } /** * @dev The minting condition struct * * @param _tokenRange The token's id range that can be minted (inclusive). * @param _blockRange The block range where users can call the mint function(inclusive). * @param _clientIdRange The client id range mapped to the client-side resource (inclusive) * @param _minters the list of addresses to mint for airdrop * @param _whitelistMerkleRoot The merkle root calculated from the whitelist. * @param _price The token price in Wei. * @param _maxAmountPerAddress The maximum token amount that a single address can mint. * @param _baseuri The base URI of tokens in the specified range. It can be updated any time. * @param _royaltyReceiver The address to receive royalty of tokens in the specified range. * @param _royaltyFraction The royalty fraction to determine the royalty amount. It can be updated any time. */ struct MintingConditionStruct { Range _tokenRange; Range _blockRange; Range _clientIdRange; address[] _minters; bytes32 _whitelistMerkleRoot; uint256 _price; uint256 _maximumAmountPerAddress; string _baseURI; address _royaltyReceiver; uint96 _royaltyFraction; } struct Sale { MintingConditionStruct _mintingCond; Counters.Counter _tokenIdTracker; bool _saleClosed; mapping(address => uint256) _tokensPerCapital; } struct Sales { uint256 _saleIdCounter; // Storage of keys EnumerableSet.UintSet _keys; mapping(uint256 => Sale) _values; // @dev client id set EnumerableSet.UintSet _clientIdSet; } function _tokenTrackerIncrement(Sales storage sales, uint256 key) internal { // assert key must exist assert(_contains(sales, key)); sales._values[key]._tokenIdTracker.increment(); } function _tokenTrackerCurrent(Sales storage sales, uint256 key) internal view returns(uint256) { // assert key must exist assert(_contains(sales, key)); return sales._values[key]._tokenIdTracker.current(); } function _tokenTrackerReset(Sales storage sales, uint256 key) internal { // assert key must exist assert(_contains(sales, key)); sales._values[key]._tokenIdTracker.reset(); } function _setClosedState(Sales storage sales, uint256 key, bool state) internal { // assert key must exist assert(_contains(sales, key)); sales._values[key]._saleClosed = state; } function _getClosedState(Sales storage sales, uint256 key) internal view returns(bool) { // assert key must exist assert(_contains(sales, key)); return sales._values[key]._saleClosed; } function _setWhoMintedHowmany(Sales storage sales, uint256 key, address minter, uint256 amount) internal { // assert key must exist assert(_contains(sales, key)); sales._values[key]._tokensPerCapital[minter] = amount; } function _getWhoMintedHowmany(Sales storage sales, uint256 key, address minter) internal view returns(uint256) { // assert key must exist assert(_contains(sales, key)); return sales._values[key]._tokensPerCapital[minter]; } function _isAMinter(Sales storage sales, uint256 key, address user) internal view returns (bool){ // assert key must exist assert(_contains(sales, key)); for (uint256 i = 0; i < sales._values[key]._mintingCond._minters.length; i ++) { if (user == sales._values[key]._mintingCond._minters[i]) { return true; } } return false; } // function get the latest id created function _getLatestSaleId(Sales storage sales) internal view returns(uint256) { return sales._saleIdCounter; } // validate clientid function _validateClientId(Sales storage sales, uint256 key, uint256[] calldata clientIds, uint256 amountPerAddress, uint256 receiversLenght) internal { // assert key must exist assert(_contains(sales, key)); require(clientIds.length == (amountPerAddress * receiversLenght), "NFTStandard: Error 1"); for (uint256 i = 0; i < clientIds.length; i++) { uint256 clientId = clientIds[i]; assert(clientId != 0); // must be != 0 require(inRange(clientId, sales._values[key]._mintingCond._clientIdRange), string(abi.encodePacked("NFTStandard: Error 2, ", clientId.toString()))); require(sales._clientIdSet.add(clientId), string(abi.encodePacked("NFTStandard: Error 3, ", clientId.toString()))); } } /** * @dev private function to check if an ID is in range * @param _id The id to be verified if in range * @param _range The range to be verified if contains _id */ function inRange(uint256 _id, EnumerableSale.Range memory _range) private pure returns(bool) { return (_id >= _range._startId && _id <= _range._endId); } /** * @dev calculate total tokens in a minting condition */ function _totalTokenSet(Sales storage sales, uint256 key) internal view returns(uint256) { return (sales._values[key]._mintingCond._tokenRange._endId - sales._values[key]._mintingCond._tokenRange._startId + 1); } /** * @dev Adds a key-value pair to a map, or updates the value for an existing * key. O(1). * * Returns true if the key was added to the map, that is if it was not * already present. * @param key can be 0 or others. if 0 it creates new minting condition. If others it updates */ function _set( Sales storage sales, uint256 key, MintingConditionStruct memory value ) internal returns (bool) { // if key = 0, create a new auto-incremented minting condition id if (key == 0) { sales._saleIdCounter++; // omit #0 key = _getLatestSaleId(sales); } else { // assert key exist assert(_contains(sales, key)); } sales._values[key]._mintingCond = value; return sales._keys.add(key); } /** * @dev Removes a key-value pair from a map. O(1). * * Returns true if the key was removed from the map, that is if it was present. */ function _remove(Sales storage sales, uint256 key) internal returns (bool) { // assert key must exist assert(_contains(sales, key)); delete sales._values[key]; // TODO safe with current logic, check. //delete sales._whoMintedHowMany[key]; return sales._keys.remove(key); } /** * @dev Returns true if the key is in the map. O(1). */ function _contains(Sales storage sales, uint256 key) internal view returns (bool) { return sales._keys.contains(key); } /** * @dev Returns the number of key-value pairs in the map. O(1). */ function _length(Sales storage sales) internal view returns (uint256) { return sales._keys.length(); } /** * @dev Returns the key-value pair stored at position `index` in the map. O(1). * * Note that there are no guarantees on the ordering of entries inside the * array, and it may change when more entries are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Sales storage sales, uint256 index) internal view returns (uint256, MintingConditionStruct memory) { uint256 key = sales._keys.at(index); return (key, sales._values[key]._mintingCond); } /** * @dev Returns the value associated with `key`. O(1). * * Requirements: * * - `key` must be in the map. */ function _get(Sales storage sales, uint256 key) internal view returns (MintingConditionStruct memory) { MintingConditionStruct memory value = sales._values[key]._mintingCond; require(_contains(sales, key), "NFTStandard: Error 4"); return value; } } // abstract contract for NFT standard abstract contract NFTStandard is ERC721Enumerable, ERC721Burnable, ERC721Pausable, IERC2981, Ownable, ReentrancyGuard { using EnumerableSale for EnumerableSale.Sales; using EnumerableSet for EnumerableSet.UintSet; using Strings for uint256; // @dev This emits when the minting condition is changed. event MintingConditionSet(uint256 _mintingConditionId, EnumerableSale.MintingConditionStruct _mintingCondition); // @dev This emits when the beneficiary who can withdraw the funds in the contract is set. event BeneficiarySet(address _beneficiary); // @dev This emits when the base URI is changed. event BaseURISet(EnumerableSale.Range _tokenRange, string _baseURI); // @dev This emits when the default royalty information is changed. event RoyaltyInfoSet(EnumerableSale.Range _tokenRange, address _receiver, uint96 _feeNumerator); // @dev This emits when the contract uri is changed. event ContractURISet(string _contractURI); // for multi minting condition management EnumerableSale.Sales private sales; // @dev mapping token id to client id mapping(uint256=>uint256) private tokenIdClientId; // @dev The version of this standard template uint256 public constant version = 2; // @dev public beneficiary address address payable public beneficiary; // @dev manage base uri by range struct Range_baseuri { EnumerableSale.Range _range; string _baseuri; } mapping(uint256 => Range_baseuri) private indexedRangeBaseuri; uint256 private baseUriSetterCounter; // @dev manage token royalty in range struct RoyaltyInfo { address _receiver; uint96 _royaltyFraction; } struct Range_royaltyinfo { EnumerableSale.Range _range; RoyaltyInfo _royalty; } mapping(uint256 => Range_royaltyinfo) private indexedRangeRoyaltyInfo; uint256 private royaltyInfoSetterCounter; uint96 private feeDenominator = 10000; // @dev record minted range EnumerableSale.Range[] private mintedRanges; // @dev reserved merkle root that allows for free-whitelist minting bytes32 private reservedMerkleRoot = 0x0; // @dev contract URI string private contractUri = ""; /** * @dev Constructor * @notice The custom event is emitted for The Graph indexing service. * @param _name The name of the NFT token * @param _symbol The symbol of the NFT token */ constructor(string memory _name, string memory _symbol) ERC721(_name, _symbol) { setBeneficiary(_msgSender()); } /** * @dev check if 2 ranges overlap each other * @param range1 the first range * @param range2 the second range */ function overlapped(EnumerableSale.Range memory range1, EnumerableSale.Range memory range2) private pure returns(bool) { // overlapped range is [overlapped_start, overlapped_stop] with: uint256 overlapped_start = (range1._startId >= range2._startId) ? range1._startId : range2._startId; uint256 overlapped_stop = (range1._endId <= range2._endId) ? range1._endId : range2._endId; return(overlapped_start <= overlapped_stop); } /** * @dev Check if comming range's vacant or not * @param _tokenRange The token id range to be verified */ function isRangeVacant(EnumerableSale.Range memory _tokenRange) private view returns(bool) { for (uint i = 0; i < mintedRanges.length; i++) { if (overlapped(_tokenRange, mintedRanges[i])) return false; } return true; } /** * @dev pause all transferring activities */ function pause() external onlyOwner { _pause(); } /** * @dev unpause all transferring activities */ function unpause() external onlyOwner { _unpause(); } /** * @dev Overriding just to solve a diamond problem. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override(ERC721, ERC721Enumerable, ERC721Pausable) { super._beforeTokenTransfer(from, to, tokenId); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC721Enumerable, IERC165) returns (bool) { return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Withdraw the funds in this contract. */ function withdraw() external onlyOwner { require(beneficiary != address(0x0), "NFTStandard: Error 5"); require(address(this).balance > 0, "NFTStandard: Error 6"); (bool sent, ) = beneficiary.call{value: address(this).balance}(""); require(sent, "NFTStandard: Error 7"); } /** * @notice Return client ids mapped to given token ids * @dev Throws if any of given token ids is not minted. * @param _tokenIds Token ids to query client ids. * @return The array of client ids */ function clientIdBatch(uint256[] calldata _tokenIds) external view returns (uint256[] memory) { uint256[] memory clientIds = new uint256[](_tokenIds.length); uint256 id; uint256 clid; for (uint256 i = 0; i < _tokenIds.length; i++) { id = _tokenIds[i]; clid = tokenIdClientId[id]; require(_exists(id), string(abi.encodePacked("NFTStandard: Error 8, ", id.toString()))); require(clid != 0, string(abi.encodePacked("NFTStandard: Error 9, ", id.toString()))); clientIds[i] = clid; } return clientIds; } /** * @notice Return the contract URI * @return The contract URI. */ function contractURI() public view returns (string memory) { return contractUri; } /** * @notice Set the contract URI */ function setContractURI(string calldata _contractURI) external onlyOwner { contractUri = _contractURI; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "NFTStandard: Error 10"); string memory baseURI = _baseURI(tokenId); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev overload ERC721::_baseURI() with tokenId as param * @param tokenId The baseURI of this tokenId will be returned */ function _baseURI(uint256 tokenId) private view returns (string memory) { // scan backward to get the latest update on range baseuri for(uint256 idx = baseUriSetterCounter; idx > 0; idx --) { if (inRange(tokenId, indexedRangeBaseuri[idx-1]._range)) { return indexedRangeBaseuri[idx-1]._baseuri; } } return ""; } /** * @dev private function to check if an ID is in range * @param _id The id to be verified if in range * @param _range The range to be verified if contains _id */ function inRange(uint256 _id, EnumerableSale.Range memory _range) private pure returns(bool) { return (_id >= _range._startId && _id <= _range._endId); } /** * @dev Change the base URI to apply to tokens in a specific range. * @param _tokenRange the token's id range that can be minted (inclusive). * @param _baseuri The base URI to set */ function setBaseURI(EnumerableSale.Range calldata _tokenRange, string calldata _baseuri) public onlyOwner { require(_tokenRange._startId <= _tokenRange._endId, "NFTStandard: Error 11"); indexedRangeBaseuri[baseUriSetterCounter]._range = _tokenRange; indexedRangeBaseuri[baseUriSetterCounter]._baseuri = _baseuri; baseUriSetterCounter ++; emit BaseURISet(_tokenRange, _baseuri); } /** * @inheritdoc IERC2981 */ function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view virtual override returns (address, uint256) { RoyaltyInfo memory royalty; uint256 royaltyAmount; // scan backward to get the latest update on range royalty for(uint256 idx = royaltyInfoSetterCounter; idx > 0; idx --) { if (inRange(_tokenId, indexedRangeRoyaltyInfo[idx-1]._range)) { royalty = indexedRangeRoyaltyInfo[idx-1]._royalty; royaltyAmount = (_salePrice * royalty._royaltyFraction) / feeDenominator; return (royalty._receiver, royaltyAmount); } } return (address(0x0), 0); } /** * @dev Change the default royalty information to apply to tokens in a specific range. * @param _tokenRange he token's id range that can be minted (inclusive). * @param _receiver The account to receive royalty amount. * @param _feeNumerator The fee numerator to calculate royalty rate (numerator/feeDenominator). */ function setRoyaltyInfo(EnumerableSale.Range calldata _tokenRange, address _receiver, uint96 _feeNumerator) public onlyOwner { require(_tokenRange._startId <= _tokenRange._endId, "NFTStandard: Error 11"); require(_feeNumerator <= feeDenominator, "NFTStandard: Error 12"); require(_receiver != address(0), "NFTStandard: Error 13"); indexedRangeRoyaltyInfo[royaltyInfoSetterCounter]._range = _tokenRange; indexedRangeRoyaltyInfo[royaltyInfoSetterCounter]._royalty = RoyaltyInfo(_receiver, _feeNumerator); royaltyInfoSetterCounter++; emit RoyaltyInfoSet(_tokenRange, _receiver, _feeNumerator); } // @dev Set the beneficiary. function setBeneficiary(address _beneficiary) public onlyOwner { require(_beneficiary != address(0x0), "NFTStandard: Error 14"); beneficiary = payable(_beneficiary); emit BeneficiarySet(_beneficiary); } /** * @notice Change the minting condition. Only the owner can change. * @dev If changed during a sale, only the ending of blockRange and whitelist are in effect. * @param _mintingConditionId 0 if creating; others(existing) if updating. * @param _mintingCondition The minting condition to be set for each sale */ function setMintingCondition(uint256 _mintingConditionId, EnumerableSale.MintingConditionStruct calldata _mintingCondition) external onlyOwner { // ________VALIDATING INPUT MINTING CONDITION__________ require(_mintingCondition._blockRange._startId <= _mintingCondition._blockRange._endId, "NFTStandard: Error 15"); uint256 saleId; EnumerableSale.MintingConditionStruct memory sale; // process to record minted Range for (uint256 i = 0; i < sales._length(); i ++) { (saleId, sale) = sales._at(i); // sale period expired with some tokens minted if (block.number > sale._blockRange._endId && !sales._getClosedState(saleId) && sales._tokenTrackerCurrent(saleId) != 0) { _updateSaleStates(saleId, EnumerableSale.Range(sale._tokenRange._startId, sale._tokenRange._startId + sales._tokenTrackerCurrent(saleId) - 1)); } } require(isRangeVacant(_mintingCondition._tokenRange), "NFTStandard: Error 20"); // ________RESOLVE ALL MINTING CONDITIONS IN ALL SALES__________ for (uint256 i = 0; i < sales._length(); i ++) { (saleId, sale) = sales._at(i); // if not overlap, no need to resolve if (!overlapped(_mintingCondition._tokenRange, sale._tokenRange)) { continue; } // sale period expired if (block.number > sale._blockRange._endId) { // the tokenRange is not minted at all if (!sales._getClosedState(saleId) && sales._tokenTrackerCurrent(saleId) == 0) { sales._remove(saleId); } // in sale period } else if (block.number >= sale._blockRange._startId) { // sale is active. we can't decide anything except preventing overlaping configuration creations if (_mintingConditionId == 0) { revert(string(abi.encodePacked("NFTstandard: Error 21, ", saleId.toString()))); } // in-the-future sales } else { // if sale hasn't started, allow for reconfiguration sales._remove(saleId); } } // creating new minting condition if (_mintingConditionId == 0) { require(_mintingCondition._tokenRange._startId <= _mintingCondition._tokenRange._endId, "NFTStandard: Error 11"); require(_mintingCondition._maximumAmountPerAddress != 0, "NFTStandard: Error 16"); require(_mintingCondition._blockRange._startId > block.number, "NFTStandard: Error 17"); require(_mintingCondition._clientIdRange._startId <= _mintingCondition._clientIdRange._endId, "NFTStandard: Error 18"); require(_mintingCondition._clientIdRange._startId > 0, "NFTStandard: Error 19"); // _mintingConditionId would be auto incremented sales._set(_mintingConditionId, _mintingCondition); setBaseURI(_mintingCondition._tokenRange, _mintingCondition._baseURI); setRoyaltyInfo(_mintingCondition._tokenRange, _mintingCondition._royaltyReceiver, _mintingCondition._royaltyFraction); // A new sale is beginning sales._setClosedState(sales._getLatestSaleId(), false); emit MintingConditionSet(sales._getLatestSaleId(), _mintingCondition); // updating old minting condition if passed correctly } else { require(sales._contains(_mintingConditionId), string(abi.encodePacked("NFTStandard: Error 22, ", _mintingConditionId.toString()))); if (inRange(block.number, sales._get(_mintingConditionId)._blockRange) && !sales._getClosedState(_mintingConditionId)) { EnumerableSale.MintingConditionStruct memory newsaleInstance = sales._get(_mintingConditionId); newsaleInstance._blockRange._endId = _mintingCondition._blockRange._endId; newsaleInstance._whitelistMerkleRoot = _mintingCondition._whitelistMerkleRoot; newsaleInstance._minters = _mintingCondition._minters; sales._set(_mintingConditionId, newsaleInstance); emit MintingConditionSet(_mintingConditionId, sales._get(_mintingConditionId)); } } } /** * @notice Return the minting condition. * @param _mintingConditionId the minting condition id * @return a tuple of (Range, Range, Range, bytes32, uint256, uint256, string, address, uint96) */ function mintingCondition(uint256 _mintingConditionId) public view returns(EnumerableSale.MintingConditionStruct memory) { return sales._get(_mintingConditionId); } /** * @notice Get all minting conditions id. * @return The array of all sale/minting condition ids */ function mintingConditionIdBatch() public view returns (uint256[] memory) { uint256[] memory idBatch = new uint256[](sales._length()); for (uint256 i = 0; i < sales._length(); i ++) { (idBatch[i], ) = sales._at(i); } return idBatch; } /** * @notice log successful sale information */ function _updateSaleStates(uint256 minitngConditionId, EnumerableSale.Range memory tokenRange) private { mintedRanges.push(tokenRange); sales._tokenTrackerReset(minitngConditionId); sales._setClosedState(minitngConditionId, true); } /** * @notice mint for receivers in batch */ function _mint(uint256 _mintingConditionId, address[] memory _receivers, uint256 _amountPerEach, uint256[] memory _clientIds) private { uint256 tokenId; // receivers list shouldn't be too big for(uint256 i = 0; i < _receivers.length; i ++) { for(uint256 j = 0; j < _amountPerEach; j ++) { tokenId = sales._get(_mintingConditionId)._tokenRange._startId + sales._tokenTrackerCurrent(_mintingConditionId); _safeMint(_receivers[i], tokenId); sales._tokenTrackerIncrement(_mintingConditionId); if (_clientIds.length != 0) { tokenIdClientId[tokenId] = _clientIds[_amountPerEach*i + j]; } } } } /** * @notice The minted tokens belong to msg.sender if whitelist mode enabled and belongs to receivers if minters mint. * The remaining coin after minting is refunded. * @dev Mint the token with the native coin. * * @param _mintingConditionId The id given by the contract for each successful minting condition set * @param _receivers The list to receve NFT when minters mint * @param _amountPerAddress The number of tokens to mint * @param _clientIds An array of clientIds that should be a subset of mintingCondition.clientIdRange. * @param _merkleProof The proof that msg.sender is in the whitelist. */ function mint(uint256 _mintingConditionId, address[] calldata _receivers, uint256 _amountPerAddress, uint256[] calldata _clientIds, bytes32[] calldata _merkleProof) external payable nonReentrant { require(_amountPerAddress != 0, "NFTStandard: Error 30"); require(sales._contains(_mintingConditionId), string(abi.encodePacked("NFTStandard: Error 22, ", _mintingConditionId.toString()))); require(!sales._getClosedState(_mintingConditionId), "NFTStandard: Error 23"); EnumerableSale.MintingConditionStruct memory sale = sales._get(_mintingConditionId); require(inRange(block.number, sale._blockRange), "NFTStandard: Error 24"); // reused variable for tokens minted PC and refund to avoid stack too deep error uint256 temp; // validate minters and mint to receivers of minters make the call if(sale._minters.length != 0 && sales._isAMinter(_mintingConditionId, _msgSender()) && (_receivers.length > 0)) { require(msg.value >= (sale._price * _amountPerAddress * _receivers.length), "NFTStandard: Error 25"); require(sales._tokenTrackerCurrent(_mintingConditionId) + _amountPerAddress * _receivers.length <= sales._totalTokenSet(_mintingConditionId), "NFTStandard: Error 26"); for (uint256 i = 0; i < _receivers.length; i ++) { // validate amount of tokens per person temp = sales._getWhoMintedHowmany(_mintingConditionId, _receivers[i]); require((temp + _amountPerAddress) <= sale._maximumAmountPerAddress, "NFTStandard: Error 27"); } // validate client ids if (_clientIds.length != 0) { sales._validateClientId(_mintingConditionId, _clientIds, _amountPerAddress, _receivers.length); } _mint(_mintingConditionId, _receivers, _amountPerAddress, _clientIds); // record amount of tokens per person for (uint256 i = 0; i < _receivers.length; i ++) { temp = sales._getWhoMintedHowmany(_mintingConditionId, _receivers[i]); sales._setWhoMintedHowmany(_mintingConditionId, _receivers[i], temp + _amountPerAddress); } // all tokens in range have been minted if (sales._tokenTrackerCurrent(_mintingConditionId) == sales._totalTokenSet(_mintingConditionId)) { _updateSaleStates(_mintingConditionId, sale._tokenRange); } // refund temp = msg.value - (sale._price * _amountPerAddress * _receivers.length); if (temp != 0) { (bool sent, ) = payable(_msgSender()).call{value: temp}(""); require(sent, "NFTStandard: Error 28"); } //validate whitelist program and mint to caller } else { if (sale._whitelistMerkleRoot != reservedMerkleRoot) { bytes32 merkleLeaf = keccak256(abi.encodePacked(_msgSender())); require(MerkleProof.verify(_merkleProof, sale._whitelistMerkleRoot, merkleLeaf), "NFTStandard: Error 29"); } require(msg.value >= (sale._price * _amountPerAddress), "NFTStandard: Error 25"); require(sales._tokenTrackerCurrent(_mintingConditionId) + _amountPerAddress <= sales._totalTokenSet(_mintingConditionId), "NFTStandard: Error 26"); temp = sales._getWhoMintedHowmany(_mintingConditionId, _msgSender()); require((temp + _amountPerAddress) <= sale._maximumAmountPerAddress, "NFTStandard: Error 27"); // validate client ids if (_clientIds.length != 0) { sales._validateClientId(_mintingConditionId, _clientIds, _amountPerAddress, 1); } address[] memory user = new address[](1); user[0] = _msgSender(); _mint(_mintingConditionId, user, _amountPerAddress, _clientIds); sales._setWhoMintedHowmany(_mintingConditionId, _msgSender(), temp + _amountPerAddress); // all tokens in range have been minted if (sales._tokenTrackerCurrent(_mintingConditionId) == sales._totalTokenSet(_mintingConditionId)) { _updateSaleStates(_mintingConditionId, sale._tokenRange); } // refund temp = msg.value - (sale._price * _amountPerAddress); if (temp != 0) { (bool sent, ) = payable(_msgSender()).call{value: temp}(""); require(sent, "NFTStandard: Error 28"); } } } } contract TheHyperianGenesis is NFTStandard { constructor(string memory _name, string memory _symbol) NFTStandard(_name, _symbol) { // do nothing } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "./IERC721Enumerable.sol"; /** * @dev This implements an optional extension of {ERC721} defined in the EIP that adds * enumerability of all the token ids in the contract as well as all token ids owned by each * account. */ abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { // Mapping from owner to list of owned token IDs mapping(address => mapping(uint256 => uint256)) private _ownedTokens; // Mapping from token ID to index of the owner tokens list mapping(uint256 => uint256) private _ownedTokensIndex; // Array with all token ids, used for enumeration uint256[] private _allTokens; // Mapping from token id to position in the allTokens array mapping(uint256 => uint256) private _allTokensIndex; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. */ function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); return _ownedTokens[owner][index]; } /** * @dev See {IERC721Enumerable-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _allTokens.length; } /** * @dev See {IERC721Enumerable-tokenByIndex}. */ function tokenByIndex(uint256 index) public view virtual override returns (uint256) { require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); return _allTokens[index]; } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` cannot be the zero address. * - `to` cannot be the zero address. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); if (from == address(0)) { _addTokenToAllTokensEnumeration(tokenId); } else if (from != to) { _removeTokenFromOwnerEnumeration(from, tokenId); } if (to == address(0)) { _removeTokenFromAllTokensEnumeration(tokenId); } else if (to != from) { _addTokenToOwnerEnumeration(to, tokenId); } } /** * @dev Private function to add a token to this extension's ownership-tracking data structures. * @param to address representing the new owner of the given token ID * @param tokenId uint256 ID of the token to be added to the tokens list of the given address */ function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { uint256 length = ERC721.balanceOf(to); _ownedTokens[to][length] = tokenId; _ownedTokensIndex[tokenId] = length; } /** * @dev Private function to add a token to this extension's token tracking data structures. * @param tokenId uint256 ID of the token to be added to the tokens list */ function _addTokenToAllTokensEnumeration(uint256 tokenId) private { _allTokensIndex[tokenId] = _allTokens.length; _allTokens.push(tokenId); } /** * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for * gas optimizations e.g. when performing a transfer operation (avoiding double writes). * This has O(1) time complexity, but alters the order of the _ownedTokens array. * @param from address representing the previous owner of the given token ID * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address */ function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; uint256 tokenIndex = _ownedTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary if (tokenIndex != lastTokenIndex) { uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index } // This also deletes the contents at the last position of the array delete _ownedTokensIndex[tokenId]; delete _ownedTokens[from][lastTokenIndex]; } /** * @dev Private function to remove a token from this extension's token tracking data structures. * This has O(1) time complexity, but alters the order of the _allTokens array. * @param tokenId uint256 ID of the token to be removed from the tokens list */ function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and // then delete the last slot (swap and pop). uint256 lastTokenIndex = _allTokens.length - 1; uint256 tokenIndex = _allTokensIndex[tokenId]; // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding // an 'if' statement (like in _removeTokenFromOwnerEnumeration) uint256 lastTokenId = _allTokens[lastTokenIndex]; _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index // This also deletes the contents at the last position of the array delete _allTokensIndex[tokenId]; _allTokens.pop(); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "../../../utils/Context.sol"; /** * @title ERC721 Burnable Token * @dev ERC721 Token that can be irreversibly burned (destroyed). */ abstract contract ERC721Burnable is Context, ERC721 { /** * @dev Burns `tokenId`. See {ERC721-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) public virtual { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved"); _burn(tokenId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Pausable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "../../../security/Pausable.sol"; /** * @dev ERC721 token with pausable token transfers, minting and burning. * * Useful for scenarios such as preventing trades until the end of an evaluation * period, or having an emergency switch for freezing all token transfers in the * event of a large bug. */ abstract contract ERC721Pausable is ERC721, Pausable { /** * @dev See {ERC721-_beforeTokenTransfer}. * * Requirements: * * - the contract must not be paused. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual override { super._beforeTokenTransfer(from, to, tokenId); require(!paused(), "ERC721Pausable: token transfer while paused"); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (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 v4.4.1 (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 Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (utils/structs/EnumerableSet.sol) pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; assembly { result := store } return result; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) pragma solidity ^0.8.0; /** * @title Counters * @author Matt Condon (@shrugs) * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number * of elements in a mapping, issuing ERC721 ids, or counting request ids. * * Include with `using Counters for Counters.Counter;` */ library Counters { struct Counter { // This variable should never be directly accessed by users of the library: interactions must be restricted to // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add // this feature: see https://github.com/ethereum/solidity/issues/4637 uint256 _value; // default: 0 } function current(Counter storage counter) internal view returns (uint256) { return counter._value; } function increment(Counter storage counter) internal { unchecked { counter._value += 1; } } function decrement(Counter storage counter) internal { uint256 value = counter._value; require(value > 0, "Counter: decrement overflow"); unchecked { counter._value = value - 1; } } function reset(Counter storage counter) internal { counter._value = 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (utils/cryptography/MerkleProof.sol) pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. * * WARNING: You should avoid using leaf values that are 64 bytes long prior to * hashing, or use a hash function other than keccak256 for hashing leaves. * This is because the concatenation of a sorted pair of internal nodes in * the merkle tree could be reinterpreted as a leaf value. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { return processProof(proof, leaf) == root; } /** * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt * hash matches the root of the tree. When processing the proof, the pairs * of leafs & pre-images are assumed to be sorted. * * _Available since v4.4._ */ function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = _efficientHash(computedHash, proofElement); } else { // Hash(current element of the proof + current computed hash) computedHash = _efficientHash(proofElement, computedHash); } } return computedHash; } function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { assembly { mstore(0x00, a) mstore(0x20, b) value := keccak256(0x00, 0x40) } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Enumerable is IERC721 { /** * @dev Returns the total amount of tokens stored by the contract. */ function totalSupply() external view returns (uint256); /** * @dev Returns a token ID owned by `owner` at a given `index` of its token list. * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. */ function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); /** * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. * Use along with {totalSupply} to enumerate all tokens. */ function tokenByIndex(uint256 index) external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// 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 v4.4.1 (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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EnumerableSale.Range","name":"_tokenRange","type":"tuple"},{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint96","name":"_feeNumerator","type":"uint96"}],"name":"setRoyaltyInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000001454686520487970657269616e2047656e657369730000000000000000000000000000000000000000000000000000000000000000000000000000000000000008485950455247454e000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _name (string): The Hyperian Genesis
Arg [1] : _symbol (string): HYPERGEN
-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000014
Arg [3] : 54686520487970657269616e2047656e65736973000000000000000000000000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [5] : 485950455247454e000000000000000000000000000000000000000000000000
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