Overview
FTM Balance
2 FTM
FTM Value
$1.98 (@ $0.99/FTM)More Info
Private Name Tags
ContractCreator:
Latest 1 internal transaction
Parent Txn Hash | Block | From | To | Value | ||
---|---|---|---|---|---|---|
43964802 | 606 days ago | Contract Creation | 0 FTM |
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Contract Name:
NFTMarketplace
Compiler Version
v0.8.0+commit.c7dfd78e
Optimization Enabled:
No 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 "./Rave.sol"; library StringManipulation { function _upper(bytes1 _b1) private pure returns (bytes1) { if (_b1 >= 0x61 && _b1 <= 0x7A) { return bytes1(uint8(_b1) - 32); } return _b1; } function upper(string memory _base) internal pure returns (string memory) { bytes memory _baseBytes = bytes(_base); for (uint i = 0; i < _baseBytes.length; i++) { _baseBytes[i] = _upper(_baseBytes[i]); } return string(_baseBytes); } } library StringsAgain { function compare(string memory _a, string memory _b) internal pure returns (int) { bytes memory a = bytes(_a); bytes memory b = bytes(_b); uint minLength = a.length; if (b.length < minLength) minLength = b.length; //@todo unroll the loop into increments of 32 and do full 32 byte comparisons for (uint i = 0; i < minLength; i ++) if (a[i] < b[i]) return -1; else if (a[i] > b[i]) return 1; if (a.length < b.length) return -1; else if (a.length > b.length) return 1; else return 0; } /// @dev Compares two strings and returns true iff they are equal. function equal(string memory _a, string memory _b) internal pure returns (bool) { return compare(_a, _b) == 0; } } contract RaveErrors { struct Error { uint16 code; string message; } Error internal PASS = Error(0, "RaveErrors (0): Passed"); Error internal NOT_AUTHORISED = Error(401, "RaveErrors (401): Not authorised to perform this action."); Error internal NOT_FOUND = Error(404, "RaveErrors (404): Name not found [try querying in all-capitals]"); } contract NFTMarketplace is RaveErrors { using StringManipulation for string; struct ErrorWithFallback { bool isError; Error error; } uint public sFee = 2; // 2% uint public initialFee = 1; // 1 FTM to sell your name address private treasury = 0x87f385d152944689f92Ed523e9e5E9Bd58Ea62ef; mapping(bytes32 => Listing) listings; mapping(bytes32 => Offer) offers; string[] allListings = [""]; mapping(string => uint) listingIndex; FantomsArtNameSystem rave; // bytes32 is much better to use than string, so we pass a string value into this function and get a bytes32 back. function _makeHash( string memory input ) internal pure returns(bytes32) { return keccak256(abi.encode(input)); } function _calcFee( uint saleValue ) internal view returns(uint) { return saleValue*(sFee/100); } struct Listing { string name; uint value; uint expireTimestamp; bool active; } struct Offer { string name; uint value; uint expireTimestamp; bool active; address offeree; } event Listed(string name, uint value, uint expire); event Delisting(string name); constructor(address _rave) { rave = FantomsArtNameSystem(_rave); listings[_makeHash("")] = Listing("",0,0,false); } function _verifyOwnership( string memory name, address owner ) internal view returns (ErrorWithFallback memory) { // HACKERMAN (https://betterttv.com/emotes/604e7880306b602acc59cf5e) (bool owned, bool isOwned) = (rave.isOwnedByMapping(name), ((rave.getOwnerOfName(name) == owner) && (StringsAgain.equal(rave.getNameFromOwner(owner), name)))); bool success = (owned && isOwned); return owned ? (ErrorWithFallback(!(success), (success ? PASS : NOT_AUTHORISED))) : ErrorWithFallback(true, NOT_FOUND); } modifier mustPassOwnershipTest( string memory name, address sender ) { ErrorWithFallback memory test = _verifyOwnership(name, sender); require(!(test.isError), test.error.message); _; // proceed as normal } function listName( string memory name, uint value, uint expireTimestamp ) external mustPassOwnershipTest(name, msg.sender) payable { // pay more if you want ig //require(msg.value >= initialFee, "RaveMarket: PAY THE FEE DUMBASS"); //payable(treasury).transfer(msg.value); // This notation makes for better code editing, dont usually do it. Listing memory listing = Listing( name, value, expireTimestamp, true ); listings[_makeHash(name)] = listing; listingIndex[name] = allListings.length; allListings.push(name); emit Listed(name, value, expireTimestamp); } function delistName( string memory name ) external mustPassOwnershipTest(name, msg.sender) { listings[_makeHash(name)] = Listing( name, 0, 0, false ); emit Delisting(name); } function buyName( string memory name, address buyer ) external payable { Listing memory listing = listings[_makeHash(name)]; require( listing.active, "RaveMarket: Listing not active" ); require( _verifyOwnership(name, buyer).isError, "RaveMarket: You cannot buy your own item" ); require( msg.value >= listing.value, "RaveMarket: The value sent is below the sale price" ); require( listing.expireTimestamp > block.timestamp, "RaveMarket: This offer has expired" ); address owner = rave.getOwnerOfName(name); uint fee = _calcFee(msg.value); (bool success, ) = treasury.call{value: fee}(""); require(success, "RaveMarket: Paying service fee failed."); (bool success1, ) = owner.call{value: (msg.value - fee)}(""); require(success1, "RaveMarket: Paying seller failed"); delete allListings[listingIndex[name]]; listingIndex[name] = 0; rave.transferName(owner, buyer, name); } function makeOffer( string memory name, uint value, uint expireTimestamp, address offeree ) external payable { require(msg.value == value, "RaveMarket: Send the amount of FTM you are offering."); require(value > offers[_makeHash(name)].value, "RaveMarket: You must offer more than what the highest offer is."); Offer memory offer = Offer( name, value, expireTimestamp, true, offeree ); offers[_makeHash(name)] = offer; } function acceptOffer( string memory name ) external mustPassOwnershipTest(name, msg.sender) { Offer memory offer = offers[_makeHash(name)]; require( offer.expireTimestamp > block.timestamp, "RaveMarket: This offer has expired" ); address owner = rave.getOwnerOfName(name); uint fee = _calcFee(offer.value); (bool success, ) = treasury.call{value: fee}(""); require(success, "RaveMarket: Paying service fee failed."); (bool success1, ) = owner.call{value: (offer.value - fee)}(""); require(success1, "RaveMarket: Paying seller failed"); if (listingIndex[name] >= 0) { delete allListings[listingIndex[name]]; listingIndex[name] = 0; } delete offers[_makeHash(name)]; rave.transferName(owner, offer.offeree, name); } function getOffer( string calldata name ) external view returns(Offer memory) { return offers[_makeHash(name)]; } function isListed( string memory name ) external view returns(bool) { return listings[_makeHash(name)].active || false; } function getListing( string memory name ) external view returns(Listing memory) { return listings[_makeHash(name)]; } function getAllListings() external view returns(string[] memory) { return allListings; } // Fallback: reverts if Ether is sent to this smart-contract by mistake fallback () external { revert(); } }
/** *Submitted for verification at FtmScan.com on 2022-02-26 */ /* _____ _ _ | __ \ | \ | | | |__) |__ ___ _____ | \| | __ _ _ __ ___ ___ ___ | _ // _` \ \ / / _ \ | . ` |/ _` | '_ ` _ \ / _ \/ __| | | \ \ (_| |\ V / __/ | |\ | (_| | | | | | | __/\__ \ |_| \_\__,_| \_/ \___| |_| \_|\__,_|_| |_| |_|\___||___/ .----------------. .----------------. .----------------. .----------------. .-----------------. .----------------. .----------------. .----------------. .----------------. | .--------------. || .--------------. || .--------------. || .--------------. | | .--------------. || .--------------. || .--------------. || .--------------. || .--------------. | | | _______ | || | __ | || | ____ ____ | || | _________ | | | | ____ _____ | || | __ | || | ____ ____ | || | _________ | || | _______ | | | | |_ __ \ | || | / \ | || ||_ _| |_ _| | || | |_ ___ | | | | ||_ \|_ _| | || | / \ | || ||_ \ / _|| || | |_ ___ | | || | / ___ | | | | | | |__) | | || | / /\ \ | || | \ \ / / | || | | |_ \_| | | | | | \ | | | || | / /\ \ | || | | \/ | | || | | |_ \_| | || | | (__ \_| | | | | | __ / | || | / ____ \ | || | \ \ / / | || | | _| _ | | | | | |\ \| | | || | / ____ \ | || | | |\ /| | | || | | _| _ | || | '.___`-. | | | | _| | \ \_ | || | _/ / \ \_ | || | \ ' / | || | _| |___/ | | | | | _| |_\ |_ | || | _/ / \ \_ | || | _| |_\/_| |_ | || | _| |___/ | | || | |`\____) | | | | | |____| |___| | || ||____| |____|| || | \_/ | || | |_________| | | | ||_____|\____| | || ||____| |____|| || ||_____||_____|| || | |_________| | || | |_______.' | | | | | || | | || | | || | | | | | | || | | || | | || | | || | | | | '--------------' || '--------------' || '--------------' || '--------------' | | '--------------' || '--------------' || '--------------' || '--------------' || '--------------' | '----------------' '----------------' '----------------' '----------------' '----------------' '----------------' '----------------' '----------------' '----------------' */ pragma solidity >=0.8.0 <0.9.0; //SPDX-License-Identifier: Unlisence //IERC20 interface interface IERC20 { function totalSupply() external view returns (uint); function balanceOf(address account) external view returns (uint); function transfer(address recipient, uint amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint); function approve(address spender, uint amount) external returns (bool); function transferFrom( address sender, address recipient, uint amount ) external returns (bool); event Transfer(address indexed from, address indexed to, uint value); event Approval(address indexed owner, address indexed spender, uint value); } 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); } } library Strings2 { /** * Concat (High gas cost) * * Appends two strings together and returns a new value * * @param _base When being used for a data type this is the extended object * otherwise this is the string which will be the concatenated * prefix * @param _value The value to be the concatenated suffix * @return string The resulting string from combinging the base and value */ function concat(string memory _base, string memory _value) internal pure returns (string memory) { bytes memory _baseBytes = bytes(_base); bytes memory _valueBytes = bytes(_value); assert(_valueBytes.length > 0); string memory _tmpValue = new string(_baseBytes.length + _valueBytes.length); bytes memory _newValue = bytes(_tmpValue); uint i; uint j; for (i = 0; i < _baseBytes.length; i++) { _newValue[j++] = _baseBytes[i]; } for (i = 0; i < _valueBytes.length; i++) { _newValue[j++] = _valueBytes[i]; } return string(_newValue); } /** * Index Of * * Locates and returns the position of a character within a string * * @param _base When being used for a data type this is the extended object * otherwise this is the string acting as the haystack to be * searched * @param _value The needle to search for, at present this is currently * limited to one character * @return int The position of the needle starting from 0 and returning -1 * in the case of no matches found */ function indexOf(string memory _base, string memory _value) internal pure returns (int) { return _indexOf(_base, _value, 0); } /** * Index Of * * Locates and returns the position of a character within a string starting * from a defined offset * * @param _base When being used for a data type this is the extended object * otherwise this is the string acting as the haystack to be * searched * @param _value The needle to search for, at present this is currently * limited to one character * @param _offset The starting point to start searching from which can start * from 0, but must not exceed the length of the string * @return int The position of the needle starting from 0 and returning -1 * in the case of no matches found */ function _indexOf(string memory _base, string memory _value, uint _offset) internal pure returns (int) { bytes memory _baseBytes = bytes(_base); bytes memory _valueBytes = bytes(_value); assert(_valueBytes.length == 1); for (uint i = _offset; i < _baseBytes.length; i++) { if (_baseBytes[i] == _valueBytes[0]) { return int(i); } } return -1; } /** * Length * * Returns the length of the specified string * * @param _base When being used for a data type this is the extended object * otherwise this is the string to be measured * @return uint The length of the passed string */ function length(string memory _base) internal pure returns (uint) { bytes memory _baseBytes = bytes(_base); return _baseBytes.length; } /** * Sub String * * Extracts the beginning part of a string based on the desired length * * @param _base When being used for a data type this is the extended object * otherwise this is the string that will be used for * extracting the sub string from * @param _length The length of the sub string to be extracted from the base * @return string The extracted sub string */ function substring(string memory _base, int _length) internal pure returns (string memory) { return _substring(_base, _length, 0); } /** * Sub String * * Extracts the part of a string based on the desired length and offset. The * offset and length must not exceed the lenth of the base string. * * @param _base When being used for a data type this is the extended object * otherwise this is the string that will be used for * extracting the sub string from * @param _length The length of the sub string to be extracted from the base * @param _offset The starting point to extract the sub string from * @return string The extracted sub string */ function _substring(string memory _base, int _length, int _offset) internal pure returns (string memory) { bytes memory _baseBytes = bytes(_base); assert(uint(_offset + _length) <= _baseBytes.length); string memory _tmp = new string(uint(_length)); bytes memory _tmpBytes = bytes(_tmp); uint j = 0; for (uint i = uint(_offset); i < uint(_offset + _length); i++) { _tmpBytes[j++] = _baseBytes[i]; } return string(_tmpBytes); } /** * String Split (Very high gas cost) * * Splits a string into an array of strings based off the delimiter value. * Please note this can be quite a gas expensive function due to the use of * storage so only use if really required. * * @param _base When being used for a data type this is the extended object * otherwise this is the string value to be split. * @param _value The delimiter to split the string on which must be a single * character */ function split(string memory _base, string memory _value) internal pure returns (string[] memory splitArr) { bytes memory _baseBytes = bytes(_base); uint _offset = 0; uint _splitsCount = 1; while (_offset < _baseBytes.length - 1) { int _limit = _indexOf(_base, _value, _offset); if (_limit == -1) break; else { _splitsCount++; _offset = uint(_limit) + 1; } } splitArr = new string[](_splitsCount); _offset = 0; _splitsCount = 0; while (_offset < _baseBytes.length - 1) { int _limit = _indexOf(_base, _value, _offset); if (_limit == - 1) { _limit = int(_baseBytes.length); } string memory _tmp = new string(uint(_limit) - _offset); bytes memory _tmpBytes = bytes(_tmp); uint j = 0; for (uint i = _offset; i < uint(_limit); i++) { _tmpBytes[j++] = _baseBytes[i]; } _offset = uint(_limit) + 1; splitArr[_splitsCount++] = string(_tmpBytes); } return splitArr; } /** * Compare To * * Compares the characters of two strings, to ensure that they have an * identical footprint * * @param _base When being used for a data type this is the extended object * otherwise this is the string base to compare against * @param _value The string the base is being compared to * @return bool Simply notates if the two string have an equivalent */ function compareTo(string memory _base, string memory _value) internal pure returns (bool) { bytes memory _baseBytes = bytes(_base); bytes memory _valueBytes = bytes(_value); if (_baseBytes.length != _valueBytes.length) { return false; } for (uint i = 0; i < _baseBytes.length; i++) { if (_baseBytes[i] != _valueBytes[i]) { return false; } } return true; } /** * Compare To Ignore Case (High gas cost) * * Compares the characters of two strings, converting them to the same case * where applicable to alphabetic characters to distinguish if the values * match. * * @param _base When being used for a data type this is the extended object * otherwise this is the string base to compare against * @param _value The string the base is being compared to * @return bool Simply notates if the two string have an equivalent value * discarding case */ function compareToIgnoreCase(string memory _base, string memory _value) internal pure returns (bool) { bytes memory _baseBytes = bytes(_base); bytes memory _valueBytes = bytes(_value); if (_baseBytes.length != _valueBytes.length) { return false; } for (uint i = 0; i < _baseBytes.length; i++) { if (_baseBytes[i] != _valueBytes[i] && _upper(_baseBytes[i]) != _upper(_valueBytes[i])) { return false; } } return true; } /** * Upper * * Converts all the values of a string to their corresponding upper case * value. * * @param _base When being used for a data type this is the extended object * otherwise this is the string base to convert to upper case * @return string */ function upper(string memory _base) internal pure returns (string memory) { bytes memory _baseBytes = bytes(_base); for (uint i = 0; i < _baseBytes.length; i++) { _baseBytes[i] = _upper(_baseBytes[i]); } return string(_baseBytes); } /** * Lower * * Converts all the values of a string to their corresponding lower case * value. * * @param _base When being used for a data type this is the extended object * otherwise this is the string base to convert to lower case * @return string */ function lower(string memory _base) internal pure returns (string memory) { bytes memory _baseBytes = bytes(_base); for (uint i = 0; i < _baseBytes.length; i++) { _baseBytes[i] = _lower(_baseBytes[i]); } return string(_baseBytes); } /** * Upper * * Convert an alphabetic character to upper case and return the original * value when not alphabetic * * @param _b1 The byte to be converted to upper case * @return bytes1 The converted value if the passed value was alphabetic * and in a lower case otherwise returns the original value */ function _upper(bytes1 _b1) private pure returns (bytes1) { if (_b1 >= 0x61 && _b1 <= 0x7A) { return bytes1(uint8(_b1) - 32); } return _b1; } /** * Lower * * Convert an alphabetic character to lower case and return the original * value when not alphabetic * * @param _b1 The byte to be converted to lower case * @return bytes1 The converted value if the passed value was alphabetic * and in a upper case otherwise returns the original value */ function _lower(bytes1 _b1) private pure returns (bytes1) { if (_b1 >= 0x41 && _b1 <= 0x5A) { return bytes1(uint8(_b1) + 32); } return _b1; } } 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); } } } } abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } 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); } } 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); } 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; } } abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } abstract contract ERC165Storage is ERC165 { /** * @dev Mapping of interface ids to whether or not it's supported. */ mapping(bytes4 => bool) private _supportedInterfaces; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return super.supportsInterface(interfaceId) || _supportedInterfaces[interfaceId]; } /** * @dev Registers the contract as an implementer of the interface defined by * `interfaceId`. Support of the actual ERC165 interface is automatic and * registering its interface id is not required. * * See {IERC165-supportsInterface}. * * Requirements: * * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`). */ function _registerInterface(bytes4 interfaceId) internal virtual { require(interfaceId != 0xffffffff, "ERC165: invalid interface id"); _supportedInterfaces[interfaceId] = true; } } 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; } 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); } 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); } interface IWrappedFantom { // deposit wraps received FTM tokens as wFTM in 1:1 ratio by minting // the received amount of FTMs in wFTM on the sender's address. function deposit() external payable returns (uint256); } 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); } 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 {} } 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(); } } interface IERC2981 is IERC165 { // ERC165 bytes to add to interface array - set in parent contract // implementing this standard // // bytes4(keccak256("royaltyInfo(uint256,uint256)")) == 0x2a55205a // bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a; // _registerInterface(_INTERFACE_ID_ERC2981); // @notice Called with the sale price to determine how much royalty // is owed and to whom. // @param _tokenId - the NFT asset queried for royalty information // @param _salePrice - the sale price of the NFT asset specified by _tokenId // @return receiver - address of who should be sent the royalty payment // @return royaltyAmount - the royalty payment amount for _salePrice function royaltyInfo(uint256 _tokenId, uint256 _salePrice) external view returns (address receiver, uint256 royaltyAmount); } abstract contract ERC2981Collection is IERC2981 { // Bytes4 Code for EIP-2981 bytes4 private constant _INTERFACE_ID_ERC2981 = 0x2a55205a; // Mappings _tokenID -> values address private recieverTemp; mapping(uint256 => address) receiverAddresses; mapping(uint256 => uint256) royaltyPercentage; // Set to be internal function _setReceiver function _setReceiver(uint256 _tokenId, address _address) internal { receiverAddresses[_tokenId] = _address; } // Set to be internal function _setRoyaltyPercentage function _setRoyaltyPercentage(uint256 _tokenId, uint256 _royaltyPercentage) internal { royaltyPercentage[_tokenId] = _royaltyPercentage; } // Override for royaltyInfo(uint256, uint256) // royaltyInfo(uint256,uint256) => 0x2a55205a function royaltyInfo( uint256 _tokenId, uint256 _salePrice ) external view override(IERC2981) returns ( address receiver, uint256 royaltyAmount ) { receiver = receiverAddresses[_tokenId]; // This sets percentages by price * percentage / 100 royaltyAmount = _salePrice * royaltyPercentage[_tokenId] / 100; } } contract FantomsArtNameSystem is ERC721Enumerable, ERC165Storage, Ownable { using Counters for Counters.Counter; //using Address for address; Counters.Counter private _tokenIdCounter; address private constant wFTMa = 0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83; IWrappedFantom private constant wFTMc = IWrappedFantom(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83); IERC20 private constant wFTM = IERC20(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83); address private constant MULTISIG_TREASURY = 0x87f385d152944689f92Ed523e9e5E9Bd58Ea62ef; address private constant deployer = 0x3e522051A9B1958Aa1e828AC24Afba4a551DF37d; uint256 public FEE_AMT = 0 ether; // bytes4 constants for ERC165 bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd; //event UpdatedFees(uint256 _newFee); event UpdatedURI(string _newURI); event NameTransferred(string _name, address _from, address _to); //event ConsoleLog(string _msg); event LinkUpdated(string _name, string _lnk); event AvatarUpdated(string _name, string _avatarLink); constructor() ERC721("fantoms.art Basic Fantom Name System", "FNS") { // ERC165 Interfaces Supported _registerInterface(_INTERFACE_ID_ERC721); } struct FantomsArtName { string _name; uint256 _tokenId; address _owner; bool _exists; string _IPFSAttrLink; string _avatar; //mapping(string => string) _more; } struct NameApproval { string _name; address _user; } mapping(uint256 => FantomsArtName) private _tokenIdToStruct; mapping(string => uint256) private _reverseSearch; mapping(address => string) private _search; mapping(address => bool) private _exists2; mapping(string => bool) private _nameExists; mapping(string => address) private _rSearch2; mapping(string => NameApproval) private _approvals; //function changeFee(uint256 _newFee) public onlyOwner { // FEE_AMT = _newFee; // emit UpdatedFees(_newFee); //} function changeFee(uint256 _newFee) public onlyOwner { FEE_AMT = _newFee; } function getNameFromOwner(address _owner) public view returns(string memory) { return _search[_owner]; } function getTokenIdFromName(string memory _name) public view returns(uint256) { return _reverseSearch[_name]; } function isOwnedByMapping(string memory _name) public view returns(bool) { return _nameExists[_name]; } function getOwnerOfName(string memory _name) public view returns(address) { _name = Strings2.upper(_name); uint256 _searchFor = _reverseSearch[_name]; FantomsArtName memory x = _tokenIdToStruct[_searchFor]; return x._owner; } function invertBool(bool _bool) private pure returns(bool) { if (_bool) { return false; } else { return true; } } // check why _nameExists[_name] isnt set to true function registerName(string memory _name) public payable { _name = Strings2.upper(_name); require(msg.value == FEE_AMT, "FNS: You need to pay the right amount >:(");// VvV require(invertBool(_nameExists[_name]), "FNS: You cant take other peoples name"); require(invertBool(_exists2[msg.sender]), "FNS: You cant own more than one name"); // the answer is --> NO <-- //wFTMc.deposit{value: msg.value}(); // /\ //wFTM.transfer(MULTISIG_TREASURY, wFTM.balanceOf(address(this))); FantomsArtName memory _tempName = FantomsArtName(_name,_tokenIdCounter.current(),msg.sender,true,"",""); _search[msg.sender] = _name; _rSearch2[_name] = msg.sender; _nameExists[_name] = true; _exists2[msg.sender] = true; _tokenIdToStruct[_tokenIdCounter.current()] = _tempName; _reverseSearch[_name] = _tokenIdCounter.current(); _safeMint(msg.sender, _tokenIdCounter.current()); _tokenIdCounter.increment(); } function approveName(string memory _name, address owner, address spender) public { address nOwner = _rSearch2[_name]; require(msg.sender == owner, "FNS: err. code 0002"); require(nOwner == owner, "FNS: err. code 0003"); NameApproval memory _tempApproval = NameApproval(_name,spender); _approvals[_name] = _tempApproval; } function isApprovedTo(string memory _name, address _to) public view returns(bool) { return (_approvals[_name]._user == _to); } /* function basicNameApproval(string memory _name, address _owner, address _spender) public { address nOwner = _rSearch2[_name]; require(msg.sender == owner); require(nOwner == owner); approveName(_name,_owner,_spender,block.timestamp + 30); } */ //function getOwnerOfTokenId(uint256 _tokenID) public view returns(address) { // return ownerOf(_tokenID); //} function sendFTMToName(string memory _name) public payable { _name = Strings2.upper(_name); payable(getOwnerOfName(_name)).transfer(msg.value); } function sendERC20ToName(address _token, uint256 _amount, string memory _name) public { _name = Strings2.upper(_name); IERC20(_token).transferFrom(msg.sender,getOwnerOfName(_name),_amount); } function sendERC721ToName(address _token, uint256 _tokenId, string memory _name) public { _name = Strings2.upper(_name); IERC721(_token).safeTransferFrom(msg.sender,getOwnerOfName(_name),_tokenId); } function transferName(address _from, address _to, string memory _name) public { require(invertBool(_exists2[_to]),"FNS: You cant overwrite someones name, idiot"); address nOwner = getOwnerOfName(_name); if (_approvals[_name]._user == msg.sender) { // do nothing } else { require(msg.sender == nOwner, "FNS: err. code 0003"); } string memory _searchFromOld = _search[_from]; uint256 _reverseFromOld = _reverseSearch[_searchFromOld]; //address _rSearch2Old = _rSearch2[_name]; //FantomsArtName memory _idk = _tokenIdToStruct[_reverseFromOld]; _rSearch2[_name] = _to; _exists2[_from] = false; _exists2[_to] = true; _search[_to] = _search[_from]; _search[_from] = string(abi.encodePacked(uint(0))); _tokenIdToStruct[_reverseSearch[_search[_to]]] = _tokenIdToStruct[_reverseFromOld]; _tokenIdToStruct[_reverseFromOld] = FantomsArtName(_name,_reverseSearch[_search[_to]],_to,true,"",""); transferFrom(_from,_to,_reverseFromOld); emit NameTransferred(_name,_from,_to); } function setIPFSAttrLink(string memory _name, string memory _lnk) public { require(_nameExists[_name],"FNS: You cant set a link for a non-existing name"); require(_tokenIdToStruct[_reverseSearch[_name]]._owner == msg.sender); _tokenIdToStruct[_reverseSearch[_name]]._IPFSAttrLink = _lnk; emit LinkUpdated(_name,_lnk); } function getAttrLink(string memory _name) public view returns(string memory) { return _tokenIdToStruct[_reverseSearch[_name]]._IPFSAttrLink; } function setAvatar(string memory _name, string memory _avatar) public { require(_nameExists[_name],"FNS: You cant set a link for a non-existing name"); require(_tokenIdToStruct[_reverseSearch[_name]]._owner == msg.sender); _tokenIdToStruct[_reverseSearch[_name]]._avatar = _avatar; emit AvatarUpdated(_name,_avatar); } function getAvatar(string memory _name) public view returns(string memory) { return _tokenIdToStruct[_reverseSearch[_name]]._avatar; } //function safeTransferFrom(address _from, address _to, string memory _name) public { // transferName(_from,_to,_name); //} // @notice solidity required override for supportsInterface(bytes4) function supportsInterface(bytes4 interfaceId) public view override(ERC165Storage,ERC721Enumerable) returns (bool) { return super.supportsInterface(interfaceId); } }
{ "optimizer": { "enabled": false, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_rave","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"name","type":"string"}],"name":"Delisting","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"expire","type":"uint256"}],"name":"Listed","type":"event"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"acceptOffer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"address","name":"buyer","type":"address"}],"name":"buyName","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"delistName","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getAllListings","outputs":[{"internalType":"string[]","name":"","type":"string[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"getListing","outputs":[{"components":[{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"},{"internalType":"bool","name":"active","type":"bool"}],"internalType":"struct NFTMarketplace.Listing","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"getOffer","outputs":[{"components":[{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"},{"internalType":"bool","name":"active","type":"bool"},{"internalType":"address","name":"offeree","type":"address"}],"internalType":"struct NFTMarketplace.Offer","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"initialFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"}],"name":"isListed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"}],"name":"listName","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"expireTimestamp","type":"uint256"},{"internalType":"address","name":"offeree","type":"address"}],"name":"makeOffer","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"sFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000006a403ffbbf8545ee0d99a63a72e5f335dfcae2bd
-----Decoded View---------------
Arg [0] : _rave (address): 0x6A403FFbBF8545EE0d99a63A72e5f335dFCaE2Bd
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000006a403ffbbf8545ee0d99a63a72e5f335dfcae2bd
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Multichain Portfolio | 24 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
FTM | Fantom (FTM) | 100.00% | $0.990849 | 2 | $1.98 |
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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.