Overview
ETH Balance
5.62793553037798084 ETH
Eth Value
$14,097.81 (@ $2,504.97/ETH)Token Holdings
More Info
Private Name Tags
ContractCreator
Latest 25 from a total of 130 transactions
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Deposit Wei | 15939240 | 718 days ago | IN | 0.01 ETH | 0.00066715 | ||||
Withdraw Deposit | 14995023 | 861 days ago | IN | 0 ETH | 0.00091428 | ||||
Withdraw Deposit | 14995012 | 861 days ago | IN | 0 ETH | 0.00136144 | ||||
Deposit Wei | 14919716 | 874 days ago | IN | 0.02 ETH | 0.00067427 | ||||
Change Day Name ... | 14919710 | 874 days ago | IN | 0 ETH | 0.00244829 | ||||
Change Day Name ... | 14737551 | 904 days ago | IN | 0 ETH | 0.00359138 | ||||
Change Day Name ... | 14734809 | 904 days ago | IN | 0 ETH | 0.0032397 | ||||
Withdraw Deposit | 14684821 | 912 days ago | IN | 0 ETH | 0.00153486 | ||||
Change Day Name ... | 14684815 | 912 days ago | IN | 0 ETH | 0.00336816 | ||||
Change Day Name ... | 14684810 | 912 days ago | IN | 0 ETH | 0.00297816 | ||||
Buy Or Mint | 14529163 | 936 days ago | IN | 1.001 ETH | 0.04505854 | ||||
Buy Or Mint | 14487887 | 943 days ago | IN | 1.01 ETH | 0.01616267 | ||||
Change Day Name ... | 14459836 | 947 days ago | IN | 0 ETH | 0.00242967 | ||||
Change Day Name ... | 14459829 | 947 days ago | IN | 0 ETH | 0.00253988 | ||||
Change Day Name ... | 14325692 | 968 days ago | IN | 0 ETH | 0.00243474 | ||||
Deposit Wei | 14308920 | 971 days ago | IN | 0.03 ETH | 0.00353661 | ||||
Withdraw Deposit | 14268566 | 977 days ago | IN | 0 ETH | 0.00170087 | ||||
Change Day Name ... | 14268560 | 977 days ago | IN | 0 ETH | 0.00375685 | ||||
Withdraw Deposit | 14263403 | 978 days ago | IN | 0 ETH | 0.00271124 | ||||
Withdraw Deposit | 14263379 | 978 days ago | IN | 0 ETH | 0.00487533 | ||||
Buy Or Mint | 14219376 | 984 days ago | IN | 1.1 ETH | 0.03145558 | ||||
Deposit Wei | 14217902 | 985 days ago | IN | 0.015 ETH | 0.00197301 | ||||
Buy Or Mint | 14208795 | 986 days ago | IN | 1.0015 ETH | 0.00378255 | ||||
Buy Or Mint | 14208718 | 986 days ago | IN | 0.005 ETH | 0.00405003 | ||||
Change Day Name ... | 14202411 | 987 days ago | IN | 0 ETH | 0.00368636 |
Latest 25 internal transactions (View All)
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Parent Transaction Hash | Block | From | To | |||
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14995023 | 861 days ago | 0.1 ETH | ||||
14995012 | 861 days ago | 0.1 ETH | ||||
14684821 | 912 days ago | 0.2 ETH | ||||
14529163 | 936 days ago | 1 ETH | ||||
14487887 | 943 days ago | 1 ETH | ||||
14268566 | 977 days ago | 0.6 ETH | ||||
14263403 | 978 days ago | 0.139 ETH | ||||
14263379 | 978 days ago | 0.05 ETH | ||||
14219376 | 984 days ago | 1 ETH | ||||
14080482 | 1006 days ago | 0.02 ETH | ||||
13990325 | 1020 days ago | 1 ETH | ||||
13990298 | 1020 days ago | 1 ETH | ||||
13978095 | 1022 days ago | 0.18 ETH | ||||
13976817 | 1022 days ago | 1 ETH | ||||
13976797 | 1022 days ago | 0.1 ETH | ||||
13976789 | 1022 days ago | 1 ETH | ||||
13976768 | 1022 days ago | 1 ETH | ||||
13976718 | 1022 days ago | 1 ETH | ||||
13976665 | 1022 days ago | 1 ETH | ||||
13976447 | 1022 days ago | 1 ETH | ||||
13976368 | 1022 days ago | 1 ETH | ||||
13976328 | 1022 days ago | 1 ETH | ||||
13975815 | 1022 days ago | 1 ETH | ||||
13975554 | 1022 days ago | 1 ETH | ||||
13974872 | 1022 days ago | 1 ETH |
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Contract Name:
CalendarSteward
Compiler Version
v0.8.0+commit.c7dfd78e
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./CommonCalendar.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; contract CalendarSteward { using SafeMath for uint256; mapping(uint256 => uint256) public price; // map tokenId to price CommonCalendar public assetToken; // ERC721 NFT. CommonCalendar public legacyToken = CommonCalendar(0xc9015e8Dd7a22C765e59a92Ee194AB8A55644988); address public benefactor = 0x613ea163982868DecEf2D9C1A1cbE23e43186549; address public hacker1 = 0x6E93D1880c87A254D142C46f712074F6cE378E14; address public hacker2 = 0xEF56F3D68ef19e48c367dB3E04B6AfFcE61d2981; mapping(uint256 => uint256) public totalCollected; // all patronage ever collected mapping(uint256 => uint256) public currentCollected; mapping(uint256 => uint256) public timeLastCollected; mapping(address => uint256) public timeLastCollectedPatron; mapping(address => uint256) public deposit; mapping(address => uint256) public totalPatronOwnedTokenPrice; mapping(uint256 => address) public benefactors; mapping(address => uint256) public benefactorFunds; mapping(uint256 => address) public currentPatron; mapping(uint256 => mapping(address => bool)) public patrons; mapping(uint256 => mapping(address => uint256)) public timeHeld; mapping(uint256 => uint256) public timeAcquired; mapping(uint256 => uint256) public patronageNumerator; enum StewardState {Foreclosed, Owned} mapping(uint256 => StewardState) public state; address public admin; address public owner; event Buy(uint256 indexed tokenId, address indexed owner, uint256 price); event DayOwner(address owner); event PriceChange(uint256 indexed tokenId, uint256 newPrice); event Foreclosure(address indexed prevOwner, uint256 foreclosureTime); event RemainingDepositUpdate( address indexed tokenPatron, uint256 remainingDeposit ); event AddToken( uint256 indexed tokenId, uint256 patronageNumerator ); event CollectPatronage( uint256 indexed tokenId, address indexed patron, uint256 remainingDeposit, uint256 amountReceived ); modifier onlyPatron(uint256 tokenId) { require(msg.sender == currentPatron[tokenId], "Not patron"); _; } modifier onlyAdmin() { require(msg.sender == admin, "Not admin"); _; } modifier onlyReceivingBenefactorOrAdmin(uint256 tokenId) { require( msg.sender == benefactors[tokenId] || msg.sender == admin, "Not benefactor or admin" ); _; } modifier collectPatronage(uint256 tokenId) { _collectPatronage(tokenId); _; } modifier collectPatronageAddress(address tokenPatron) { _collectPatronagePatron(tokenPatron); _; } constructor(CommonCalendar _assetToken, address _admin) { assetToken = (_assetToken); admin = _admin; owner = msg.sender; } function setLegacyToken(CommonCalendar _legacy) onlyAdmin() public { legacyToken = _legacy; } function setBenefactor(address _benefactor) onlyAdmin() public { benefactor = _benefactor; } function buyOrMint(address to, uint8 month, uint8 dayOfMonth, uint256 _newPrice, uint256 _deposit, string memory dayName) public payable { uint256 tokenId = uint256(month).mul(100).add(dayOfMonth); if (assetToken.exists(tokenId)) { _buy(to, tokenId, month, dayOfMonth, _newPrice, _deposit, dayName); } else { uint256 salePrice = 1 ether; require(msg.value > salePrice, "Not enough"); address payable oldOwner = payable(legacyToken.ownerOf(tokenId)); if (oldOwner == hacker1 || oldOwner == hacker2) { oldOwner = payable(admin); } bool transferSuccess = oldOwner.send(salePrice); _listNewToken(to, month, dayOfMonth, _newPrice, _deposit, dayName); } } function _listNewToken( address to, uint8 month, uint8 dayOfMonth, uint256 _newPrice, uint256 _deposit, string memory dayName ) private { address payable _benefactor = payable(benefactor); uint256 _patronageNumerator = 10000000000; // 1% assert(_benefactor != address(0)); uint256 tokenID = assetToken.mintItem(to, month, dayOfMonth); benefactors[tokenID] = _benefactor; state[tokenID] = StewardState.Foreclosed; patronageNumerator[tokenID] = _patronageNumerator; emit AddToken( tokenID, _patronageNumerator ); if(to != owner) { _buy(to, tokenID, month, dayOfMonth, _newPrice, _deposit, dayName); } } function changeReceivingBenefactor( uint256 tokenId, address payable _newReceivingBenefactor ) public onlyReceivingBenefactorOrAdmin(tokenId) { address oldBenfactor = benefactors[tokenId]; require( oldBenfactor != _newReceivingBenefactor, "Cannot change to same address" ); benefactors[tokenId] = _newReceivingBenefactor; benefactorFunds[_newReceivingBenefactor] = benefactorFunds[_newReceivingBenefactor] .add(benefactorFunds[oldBenfactor]); benefactorFunds[oldBenfactor] = 0; } function changeAdmin(address _admin) public onlyAdmin { admin = _admin; } function patronageOwed(uint256 tokenId) public view returns (uint256 patronageDue) { if (timeLastCollected[tokenId] == 0) return 0; return price[tokenId] .mul(block.timestamp.sub(timeLastCollected[tokenId])) .mul(patronageNumerator[tokenId]) .div(1000000000000) .div(365 days); } function patronageOwedWithTimestamp(uint256 tokenId) public view returns (uint256 patronageDue, uint256 timestamp) { return (patronageOwed(tokenId), block.timestamp); } // TODO: make a version of this function that is for patronage owed by token rather than by tokenPatron like it is now. function patronageOwedByPatron(address tokenPatron) public view returns (uint256 patronageDue) { if (timeLastCollectedPatron[tokenPatron] == 0) return 0; return totalPatronOwnedTokenPrice[tokenPatron] .mul(block.timestamp.sub(timeLastCollectedPatron[tokenPatron])) .div(1000000000000) .div(365 days); } function patronageOwedByPatronWithTimestamp(address tokenPatron) public view returns (uint256 patronageDue, uint256 timestamp) { return (patronageOwedByPatron(tokenPatron), block.timestamp); } function foreclosedPatron(address tokenPatron) public view returns (bool) { // returns whether it is in foreclosed state or not // depending on whether deposit covers patronage due // useful helper function when price should be zero, but contract doesn't reflect it yet. if (patronageOwedByPatron(tokenPatron) >= deposit[tokenPatron]) { return true; } else { return false; } } function foreclosed(uint256 tokenId) public view returns (bool) { // returns whether it is in foreclosed state or not // depending on whether deposit covers patronage due // useful helper function when price should be zero, but contract doesn't reflect it yet. address tokenPatron = currentPatron[tokenId]; return foreclosedPatron(tokenPatron); } function depositAbleToWithdraw(address tokenPatron) public view returns (uint256) { uint256 collection = patronageOwedByPatron(tokenPatron); if (collection >= deposit[tokenPatron]) { return 0; } else { return deposit[tokenPatron].sub(collection); } } function foreclosureTimePatron(address tokenPatron) public view returns (uint256) { // patronage per second uint256 pps = totalPatronOwnedTokenPrice[tokenPatron] .div(1000000000000) .div(365 days); return block.timestamp.add(depositAbleToWithdraw(tokenPatron).div(pps)); // zero division if price is zero. } function foreclosureTime(uint256 tokenId) public view returns (uint256) { address tokenPatron = currentPatron[tokenId]; return foreclosureTimePatron(tokenPatron); } // TODO:: think of more efficient ways for recipients to collect patronage for lots of tokens at the same time.0 function _collectPatronage(uint256 tokenId) public { // determine patronage to pay if (state[tokenId] == StewardState.Owned) { address currentOwner = currentPatron[tokenId]; uint256 previousTokenCollection = timeLastCollected[tokenId]; uint256 patronageOwedByTokenPatron = patronageOwedByPatron( currentOwner ); uint256 collection; // it should foreclose and take stewardship if (patronageOwedByTokenPatron >= deposit[currentOwner]) { uint256 newTimeLastCollected = timeLastCollectedPatron[currentOwner].add( ( (block.timestamp.sub(timeLastCollectedPatron[currentOwner])) .mul(deposit[currentOwner]) .div(patronageOwedByTokenPatron) ) ); timeLastCollected[tokenId] = newTimeLastCollected; timeLastCollectedPatron[currentOwner] = newTimeLastCollected; collection = price[tokenId] .mul(newTimeLastCollected.sub(previousTokenCollection)) .mul(patronageNumerator[tokenId]) .div(1000000000000) .div(365 days); deposit[currentOwner] = 0; _foreclose(tokenId); } else { collection = price[tokenId] .mul(block.timestamp.sub(previousTokenCollection)) .mul(patronageNumerator[tokenId]) .div(1000000000000) .div(365 days); timeLastCollected[tokenId] = block.timestamp; timeLastCollectedPatron[currentOwner] = block.timestamp; currentCollected[tokenId] = currentCollected[tokenId].add( collection ); deposit[currentOwner] = deposit[currentOwner].sub( patronageOwedByTokenPatron ); } totalCollected[tokenId] = totalCollected[tokenId].add(collection); address benefactor = benefactors[tokenId]; benefactorFunds[benefactor] = benefactorFunds[benefactor].add( collection ); // if foreclosed, tokens are minted and sent to the steward since _foreclose is already called. emit CollectPatronage( tokenId, currentOwner, deposit[currentOwner], collection ); } } // This does accounting without transfering any tokens function _collectPatronagePatron(address tokenPatron) public { uint256 patronageOwedByTokenPatron = patronageOwedByPatron(tokenPatron); if ( patronageOwedByTokenPatron > 0 && patronageOwedByTokenPatron >= deposit[tokenPatron] ) { uint256 previousCollectionTime = timeLastCollectedPatron[tokenPatron]; // up to when was it actually paid for? uint256 newTimeLastCollected = previousCollectionTime.add( ( (block.timestamp.sub(previousCollectionTime)) .mul(deposit[tokenPatron]) .div(patronageOwedByTokenPatron) ) ); timeLastCollectedPatron[tokenPatron] = newTimeLastCollected; deposit[tokenPatron] = 0; } else { timeLastCollectedPatron[tokenPatron] = block.timestamp; deposit[tokenPatron] = deposit[tokenPatron].sub( patronageOwedByTokenPatron ); } emit RemainingDepositUpdate(tokenPatron, deposit[tokenPatron]); } function depositWei() public payable { depositWeiPatron(msg.sender); } function getDeposit(address tokenPatron) public view returns (uint256) { return deposit[tokenPatron]; } function depositWeiPatron(address patron) public payable { require(totalPatronOwnedTokenPrice[patron] > 0, "No tokens owned"); deposit[patron] = deposit[patron].add(msg.value); emit RemainingDepositUpdate(patron, deposit[patron]); } function _buy( address to, uint256 tokenId, uint8 month, uint8 dayOfMonth, uint256 _newPrice, uint256 _deposit, string memory _dayName ) private collectPatronage(tokenId) collectPatronageAddress(to) { require(_newPrice > 0, "Price is zero"); require(_deposit > 0, "Deposit eth amount is zero"); require(msg.value > price[tokenId], "Not enough"); uint256 remainingValueForDeposit = msg.value.sub(price[tokenId]); require( remainingValueForDeposit >= _deposit, "The deposit available is < what was stated in the transaction" ); address currentOwner = assetToken.ownerOf(tokenId); emit DayOwner(currentOwner); address tokenPatron = currentPatron[tokenId]; if (state[tokenId] == StewardState.Owned) { uint256 totalToPayBack = price[tokenId]; // NOTE: pay back the deposit only if it is the only token the patron owns. if ( totalPatronOwnedTokenPrice[tokenPatron] == price[tokenId].mul(patronageNumerator[tokenId]) ) { totalToPayBack = totalToPayBack.add(deposit[tokenPatron]); deposit[tokenPatron] = 0; } // pay previous owner their price + deposit back. address payable payableCurrentPatron = payable( tokenPatron ); bool transferSuccess = payableCurrentPatron.send(totalToPayBack); } else if (state[tokenId] == StewardState.Foreclosed) { state[tokenId] = StewardState.Owned; timeLastCollected[tokenId] = block.timestamp; timeLastCollectedPatron[to] = block.timestamp; } deposit[to] = deposit[to].add(_deposit); transferAssetTokenTo( tokenId, currentOwner, tokenPatron, to, _newPrice ); assetToken.setDayName(month, dayOfMonth, _dayName); emit Buy(tokenId, to, _newPrice); } function getDaySellPrice(uint256 tokenId) public view returns (uint256 sellPrice) { return price[tokenId]; } function changeDayNamePrice(uint256 tokenId, uint8 _monthNumber, uint8 _dayOfMonth, string memory _dayName, uint256 _newPrice) public onlyPatron(tokenId) collectPatronage(tokenId) { require(state[tokenId] != StewardState.Foreclosed, "Foreclosed"); require(_newPrice != 0, "Incorrect Price"); totalPatronOwnedTokenPrice[msg.sender] = totalPatronOwnedTokenPrice[msg .sender] .sub(price[tokenId].mul(patronageNumerator[tokenId])) .add(_newPrice.mul(patronageNumerator[tokenId])); // Update total price of all owned tokens price[tokenId] = _newPrice; assetToken.setDayName(_monthNumber, _dayOfMonth, _dayName); emit PriceChange(tokenId, price[tokenId]); } function withdrawDeposit(uint256 _wei) public collectPatronageAddress(msg.sender) returns (uint256) { _withdrawDeposit(_wei); } function withdrawBenefactorFunds() public { withdrawBenefactorFundsTo(payable(msg.sender)); } function withdrawBenefactorFundsTo(address payable benefactor) public { require(benefactorFunds[benefactor] > 0, "No funds available"); uint256 amountToWithdraw = benefactorFunds[benefactor]; benefactorFunds[benefactor] = 0; bool transferSuccess = benefactor.send(amountToWithdraw); if (!transferSuccess) { revert("Unable to withdraw benefactor funds"); } } function exit() public collectPatronageAddress(msg.sender) { _withdrawDeposit(deposit[msg.sender]); } /* internal */ function _withdrawDeposit(uint256 _wei) internal { // note: can withdraw whole deposit, which puts it in immediate to be foreclosed state. require(deposit[msg.sender] >= _wei, "Withdrawing too much"); deposit[msg.sender] = deposit[msg.sender].sub(_wei); // msg.sender == patron bool transferSuccess = payable(msg.sender).send(_wei); if (!transferSuccess) { revert("Unable to withdraw deposit"); } } function _foreclose(uint256 tokenId) internal { // become steward of assetToken (aka foreclose) address currentOwner = assetToken.ownerOf(tokenId); address tokenPatron = currentPatron[tokenId]; transferAssetTokenTo( tokenId, currentOwner, tokenPatron, address(this), 0 ); state[tokenId] = StewardState.Foreclosed; currentCollected[tokenId] = 0; emit Foreclosure(currentOwner, timeLastCollected[tokenId]); } function transferAssetTokenTo( uint256 tokenId, address _currentOwner, address _currentPatron, address _newOwner, uint256 _newPrice ) internal { totalPatronOwnedTokenPrice[_newOwner] = totalPatronOwnedTokenPrice[_newOwner] .add(_newPrice.mul(patronageNumerator[tokenId])); totalPatronOwnedTokenPrice[_currentPatron] = totalPatronOwnedTokenPrice[_currentPatron] .sub(price[tokenId].mul(patronageNumerator[tokenId])); timeHeld[tokenId][_currentPatron] = timeHeld[tokenId][_currentPatron] .add((timeLastCollected[tokenId].sub(timeAcquired[tokenId]))); assetToken.transferFrom(_currentOwner, _newOwner, tokenId); currentPatron[tokenId] = _newOwner; price[tokenId] = _newPrice; timeAcquired[tokenId] = block.timestamp; patrons[tokenId][_newOwner] = true; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/utils/Counters.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import "./DateTime.sol"; contract CommonCalendar is ERC721, ERC721Enumerable, ERC721URIStorage, Pausable, Ownable { using Counters for Counters.Counter; using SafeMath for uint256; address public steward; address dateLibrary; mapping (uint8 => mapping (uint8 => bool)) internal mintedDates; // month -> day -> was minted bool mapping (uint8 => mapping (uint8 => string)) internal dayNames; // User set names event AuctionAdded(uint8 month, uint8 day); function setSteward(address _steward) public onlyOwner { steward = _steward; } // Day Name methods function setDayName(uint8 _monthNumber, uint8 _dayOfMonth, string memory newName) public { require(bytes(newName).length <= 36, "Day name must be less than 36 chars"); // Move to DAO dayNames[_monthNumber][_dayOfMonth] = newName; } function getDayName(uint8 _monthNumber, uint8 _dayOfMonth) public view returns (string memory) { return dayNames[_monthNumber][_dayOfMonth]; } function getTodayName() public view returns (string memory) { DateTime datetimelib = DateTime(dateLibrary); uint8 monthNumber = datetimelib.getMonth(block.timestamp); uint8 dayOfMonth = datetimelib.getDay(block.timestamp); return dayNames[monthNumber][dayOfMonth]; } function getMintedDay(uint8 _monthNumber, uint8 _dayOfMonth) public view returns(bool) { return mintedDates[_monthNumber][_dayOfMonth]; } modifier notAlreadyMinted(uint8 _monthNumber, uint8 _dayOfMonth) { require(mintedDates[_monthNumber][_dayOfMonth] == false, "This NFT was already minted"); _; } modifier onlyValidInputs(uint8 _monthNumber, uint8 _dayOfMonth) { require(_monthNumber < 13 && _monthNumber > 0, "Month out of range"); require(_dayOfMonth < 32 && _dayOfMonth > 0, "Day out of range"); _; } function calculateTokenID(uint8 month, uint8 dayOfMonth) public returns (uint256 tokenID) { return uint256(month).mul(100).add(dayOfMonth); } //onlyMintOnDay(month, dayOfMonth) function mintItem(address to, uint8 month, uint8 dayOfMonth) public notAlreadyMinted(month, dayOfMonth) onlyValidInputs(month, dayOfMonth) returns (uint256) { require (msg.sender == steward); uint256 tokenID = calculateTokenID(month, dayOfMonth); _mint(to, tokenID); _setTokenURI(tokenID, string(abi.encodePacked(uint2str(month), "/", uint2str(dayOfMonth)))); mintedDates[month][dayOfMonth] = true; return tokenID; } function pause() public onlyOwner { _pause(); } function unpause() public onlyOwner { _unpause(); } function _baseURI() internal pure override returns (string memory) { return "https://api.calendar.org/"; } function _beforeTokenTransfer(address from, address to, uint256 tokenId) internal whenNotPaused override(ERC721, ERC721Enumerable) { super._beforeTokenTransfer(from, to, tokenId); } function _burn(uint256 tokenId) internal override(ERC721, ERC721URIStorage) { return; } function exists(uint256 tokenId) public view returns (bool) { return super._exists(tokenId); } function tokenURI(uint256 tokenId) public view override(ERC721, ERC721URIStorage) returns (string memory) { return super.tokenURI(tokenId); } function supportsInterface(bytes4 interfaceId) public view override(ERC721, ERC721Enumerable) returns (bool) { return super.supportsInterface(interfaceId); } function _isApprovedOrOwner(address spender, uint256 tokenId) internal view override(ERC721) returns (bool) { return (spender == steward); /* // NOTE: temporarily disabling sending of the tokens independently. A protective messure since it isn't clear to users how this function should work. // Will re-add once a mechanism is agreed on by the community. || ERC721._isApprovedOrOwner(spender, tokenId) */ } constructor(address _dateLibrary) ERC721("CommonCalendar", "CC") { dateLibrary = _dateLibrary; } function uint2str(uint256 _i) internal pure returns (string memory str) { if (_i == 0) { return "0"; } uint256 j = _i; uint256 length; while (j != 0) { length++; j /= 10; } bytes memory bstr = new bytes(length); uint256 k = length; j = _i; while (j != 0) { bstr[--k] = bytes1(uint8(48 + j % 10)); j /= 10; } str = string(bstr); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } }
// SPDX-License-Identifier: MIT 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 overriden 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 { require(operator != _msgSender(), "ERC721: approve to caller"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_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 || getApproved(tokenId) == spender || isApprovedForAll(owner, 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); } /** * @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); } /** * @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 of token that is not own"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); } /** * @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 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 {} }
// SPDX-License-Identifier: MIT 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 pragma solidity ^0.8.0; import "../ERC721.sol"; /** * @dev ERC721 token with storage based token URI management. */ abstract contract ERC721URIStorage is ERC721 { using Strings for uint256; // Optional mapping for token URIs mapping(uint256 => string) private _tokenURIs; /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721URIStorage: URI query for nonexistent token"); string memory _tokenURI = _tokenURIs[tokenId]; string memory base = _baseURI(); // If there is no base URI, return the token URI. if (bytes(base).length == 0) { return _tokenURI; } // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). if (bytes(_tokenURI).length > 0) { return string(abi.encodePacked(base, _tokenURI)); } return super.tokenURI(tokenId); } /** * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token"); _tokenURIs[tokenId] = _tokenURI; } /** * @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 override { super._burn(tokenId); if (bytes(_tokenURIs[tokenId]).length != 0) { delete _tokenURIs[tokenId]; } } }
// SPDX-License-Identifier: MIT 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()); } }
// SPDX-License-Identifier: MIT 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() { _setOwner(_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 { _setOwner(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"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT 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 pragma solidity ^0.8.0; contract DateTime { /* * Date and Time utilities for ethereum contracts * */ struct _DateTime { uint16 year; uint8 month; uint8 day; uint8 hour; uint8 minute; uint8 second; uint8 weekday; } uint constant DAY_IN_SECONDS = 86400; uint constant YEAR_IN_SECONDS = 31536000; uint constant LEAP_YEAR_IN_SECONDS = 31622400; uint constant HOUR_IN_SECONDS = 3600; uint constant MINUTE_IN_SECONDS = 60; uint16 constant ORIGIN_YEAR = 1970; function isLeapYear(uint16 year) public pure returns (bool) { if (year % 4 != 0) { return false; } if (year % 100 != 0) { return true; } if (year % 400 != 0) { return false; } return true; } function leapYearsBefore(uint year) public pure returns (uint) { year -= 1; return year / 4 - year / 100 + year / 400; } function getDaysInMonth(uint8 month, uint16 year) public pure returns (uint8) { if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) { return 31; } else if (month == 4 || month == 6 || month == 9 || month == 11) { return 30; } else if (isLeapYear(year)) { return 29; } else { return 28; } } function parseTimestamp(uint timestamp) internal pure returns (_DateTime memory dt) { uint secondsAccountedFor = 0; uint buf; uint8 i; // Year dt.year = getYear(timestamp); buf = leapYearsBefore(dt.year) - leapYearsBefore(ORIGIN_YEAR); secondsAccountedFor += LEAP_YEAR_IN_SECONDS * buf; secondsAccountedFor += YEAR_IN_SECONDS * (dt.year - ORIGIN_YEAR - buf); // Month uint secondsInMonth; for (i = 1; i <= 12; i++) { secondsInMonth = DAY_IN_SECONDS * getDaysInMonth(i, dt.year); if (secondsInMonth + secondsAccountedFor > timestamp) { dt.month = i; break; } secondsAccountedFor += secondsInMonth; } // Day for (i = 1; i <= getDaysInMonth(dt.month, dt.year); i++) { if (DAY_IN_SECONDS + secondsAccountedFor > timestamp) { dt.day = i; break; } secondsAccountedFor += DAY_IN_SECONDS; } // Hour dt.hour = getHour(timestamp); // Minute dt.minute = getMinute(timestamp); // Second dt.second = getSecond(timestamp); // Day of week. dt.weekday = getWeekday(timestamp); } function getYear(uint timestamp) public pure returns (uint16) { uint secondsAccountedFor = 0; uint16 year; uint numLeapYears; // Year year = uint16(ORIGIN_YEAR + timestamp / YEAR_IN_SECONDS); numLeapYears = leapYearsBefore(year) - leapYearsBefore(ORIGIN_YEAR); secondsAccountedFor += LEAP_YEAR_IN_SECONDS * numLeapYears; secondsAccountedFor += YEAR_IN_SECONDS * (year - ORIGIN_YEAR - numLeapYears); while (secondsAccountedFor > timestamp) { if (isLeapYear(uint16(year - 1))) { secondsAccountedFor -= LEAP_YEAR_IN_SECONDS; } else { secondsAccountedFor -= YEAR_IN_SECONDS; } year -= 1; } return year; } function getMonth(uint timestamp) public pure returns (uint8) { return parseTimestamp(timestamp).month; } function getDay(uint timestamp) public pure returns (uint8) { return parseTimestamp(timestamp).day; } function getHour(uint timestamp) public pure returns (uint8) { return uint8((timestamp / 60 / 60) % 24); } function getMinute(uint timestamp) public pure returns (uint8) { return uint8((timestamp / 60) % 60); } function getSecond(uint timestamp) public pure returns (uint8) { return uint8(timestamp % 60); } function getWeekday(uint timestamp) public pure returns (uint8) { return uint8((timestamp / DAY_IN_SECONDS + 4) % 7); } function toTimestamp(uint16 year, uint8 month, uint8 day) public pure returns (uint timestamp) { return toTimestamp(year, month, day, 0, 0, 0); } function toTimestamp(uint16 year, uint8 month, uint8 day, uint8 hour) public pure returns (uint timestamp) { return toTimestamp(year, month, day, hour, 0, 0); } function toTimestamp(uint16 year, uint8 month, uint8 day, uint8 hour, uint8 minute) public pure returns (uint timestamp) { return toTimestamp(year, month, day, hour, minute, 0); } function toTimestamp(uint16 year, uint8 month, uint8 day, uint8 hour, uint8 minute, uint8 second) public pure returns (uint timestamp) { uint16 i; // Year for (i = ORIGIN_YEAR; i < year; i++) { if (isLeapYear(i)) { timestamp += LEAP_YEAR_IN_SECONDS; } else { timestamp += YEAR_IN_SECONDS; } } // Month uint8[12] memory monthDayCounts; monthDayCounts[0] = 31; if (isLeapYear(year)) { monthDayCounts[1] = 29; } else { monthDayCounts[1] = 28; } monthDayCounts[2] = 31; monthDayCounts[3] = 30; monthDayCounts[4] = 31; monthDayCounts[5] = 30; monthDayCounts[6] = 31; monthDayCounts[7] = 31; monthDayCounts[8] = 30; monthDayCounts[9] = 31; monthDayCounts[10] = 30; monthDayCounts[11] = 31; for (i = 1; i < month; i++) { timestamp += DAY_IN_SECONDS * monthDayCounts[i - 1]; } // Day timestamp += DAY_IN_SECONDS * (day - 1); // Hour timestamp += HOUR_IN_SECONDS * (hour); // Minute timestamp += MINUTE_IN_SECONDS * (minute); // Second timestamp += second; return timestamp; } }
// SPDX-License-Identifier: MIT 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`, 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 Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @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 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); /** * @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; }
// SPDX-License-Identifier: MIT 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 `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT 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 pragma solidity ^0.8.0; /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 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 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 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 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 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 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 tokenId); /** * @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); }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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CommonCalendar","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"benefactor","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"benefactorFunds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"benefactors","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint8","name":"month","type":"uint8"},{"internalType":"uint8","name":"dayOfMonth","type":"uint8"},{"internalType":"uint256","name":"_newPrice","type":"uint256"},{"internalType":"uint256","name":"_deposit","type":"uint256"},{"internalType":"string","name":"dayName","type":"string"}],"name":"buyOrMint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_admin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint8","name":"_monthNumber","type":"uint8"},{"internalType":"uint8","name":"_dayOfMonth","type":"uint8"},{"internalType":"string","name":"_dayName","type":"string"},{"internalType":"uint256","name":"_newPrice","type":"uint256"}],"name":"changeDayNamePrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address 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CommonCalendar","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"patronageNumerator","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"patronageOwed","outputs":[{"internalType":"uint256","name":"patronageDue","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenPatron","type":"address"}],"name":"patronageOwedByPatron","outputs":[{"internalType":"uint256","name":"patronageDue","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenPatron","type":"address"}],"name":"patronageOwedByPatronWithTimestamp","outputs":[{"internalType":"uint256","name":"patronageDue","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"patronageOwedWithTimestamp","outputs":[{"internalType":"uint256","name":"patronageDue","type":"uint256"},{"internalType":"uint256","name":"timestamp","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"patrons","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_benefactor","type":"address"}],"name":"setBenefactor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract 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CalendarSteward.StewardState","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"timeAcquired","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"timeHeld","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"timeLastCollected","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"timeLastCollectedPatron","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"totalCollected","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"totalPatronOwnedTokenPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawBenefactorFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address 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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000005228787dbc773cfdae72bb98b6f27fbb546e0292000000000000000000000000613ea163982868decef2d9c1a1cbe23e43186549
-----Decoded View---------------
Arg [0] : _assetToken (address): 0x5228787dBc773CfdaE72Bb98B6f27FbB546e0292
Arg [1] : _admin (address): 0x613ea163982868DecEf2D9C1A1cbE23e43186549
-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000005228787dbc773cfdae72bb98b6f27fbb546e0292
Arg [1] : 000000000000000000000000613ea163982868decef2d9c1a1cbe23e43186549
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.