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Latest 25 from a total of 11,255 transactions
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Purchase Identit... | 20453465 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453465 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453465 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453465 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453427 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453393 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453393 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453393 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20453078 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20452838 | 141 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20408234 | 147 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20408234 | 147 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20408234 | 147 days ago | IN | 0 ETH | 0.00005 | ||||
Purchase Identit... | 20154117 | 182 days ago | IN | 0.00294042 ETH | 0.00178676 | ||||
Purchase Identit... | 20101068 | 190 days ago | IN | 0.00655679 ETH | 0.00125584 | ||||
Purchase Identit... | 20090246 | 191 days ago | IN | 0.00292421 ETH | 0.00684637 | ||||
Purchase Identit... | 19921090 | 215 days ago | IN | 0.00274913 ETH | 0.00483655 | ||||
Purchase Identit... | 19912226 | 216 days ago | IN | 0.0032901 ETH | 0.01268317 | ||||
Purchase Identit... | 19860721 | 223 days ago | IN | 0.00347825 ETH | 0.00270874 | ||||
Purchase Identit... | 19852919 | 224 days ago | IN | 0.00353295 ETH | 0.00296064 | ||||
Purchase Identit... | 19847082 | 225 days ago | IN | 0.00353711 ETH | 0.00398453 | ||||
Purchase Identit... | 19846438 | 225 days ago | IN | 0.00354355 ETH | 0.0039209 | ||||
Purchase Identit... | 19844561 | 226 days ago | IN | 0.00353239 ETH | 0.00236565 | ||||
Purchase Name | 19830869 | 228 days ago | IN | 0.00342174 ETH | 0.00185661 | ||||
Purchase Identit... | 19824468 | 228 days ago | IN | 0.00343661 ETH | 0.00246524 |
Latest 25 internal transactions (View All)
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20154117 | 182 days ago | 0.00007173 ETH | ||||
20154117 | 182 days ago | 0.00286869 ETH | ||||
20101068 | 190 days ago | 0.00373808 ETH | ||||
20101068 | 190 days ago | 0.0028187 ETH | ||||
20090246 | 191 days ago | 0.00007132 ETH | ||||
20090246 | 191 days ago | 0.00285289 ETH | ||||
19921090 | 215 days ago | 0.00006713 ETH | ||||
19921090 | 215 days ago | 0.002682 ETH | ||||
19912226 | 216 days ago | 0.00008024 ETH | ||||
19912226 | 216 days ago | 0.00320986 ETH | ||||
19860721 | 223 days ago | 0.00008483 ETH | ||||
19860721 | 223 days ago | 0.00339341 ETH | ||||
19852919 | 224 days ago | 0.00008616 ETH | ||||
19852919 | 224 days ago | 0.00344678 ETH | ||||
19847082 | 225 days ago | 0.00008627 ETH | ||||
19847082 | 225 days ago | 0.00345083 ETH | ||||
19846438 | 225 days ago | 0.00008628 ETH | ||||
19846438 | 225 days ago | 0.00345727 ETH | ||||
19844561 | 226 days ago | 0.00008615 ETH | ||||
19844561 | 226 days ago | 0.00344624 ETH | ||||
19830869 | 228 days ago | 0.00008346 ETH | ||||
19830869 | 228 days ago | 0.00333828 ETH | ||||
19824468 | 228 days ago | 0.00008382 ETH | ||||
19824468 | 228 days ago | 0.00335279 ETH | ||||
19824344 | 228 days ago | 0.00008374 ETH |
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Contract Name:
SoulStore
Compiler Version
v0.8.7+commit.e28d00a7
Optimization Enabled:
Yes with 1 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "./libraries/Errors.sol"; import "./dex/PaymentGateway.sol"; import "./interfaces/ISoulboundIdentity.sol"; import "./interfaces/ISoulName.sol"; /// @title Soul Store /// @author Masa Finance /// @notice Soul Store, that can mint new Soulbound Identities and Soul Name NFTs, paying a fee /// @dev From this smart contract we can mint new Soulbound Identities and Soul Name NFTs. /// This minting can be done paying a fee in ETH, USDC or MASA contract SoulStore is PaymentGateway, Pausable, ReentrancyGuard, EIP712 { using SafeMath for uint256; /* ========== STATE VARIABLES ========== */ ISoulboundIdentity public soulboundIdentity; mapping(uint256 => uint256) public nameRegistrationPricePerYear; // (length --> price in stable coin per year) mapping(address => bool) public authorities; /* ========== INITIALIZE ========== */ /// @notice Creates a new Soul Store /// @dev Creates a new Soul Store, that has the role to minting new Soulbound Identities /// and Soul Name NFTs, paying a fee /// @param admin Administrator of the smart contract /// @param _soulBoundIdentity Address of the Soulbound identity contract /// @param _nameRegistrationPricePerYear Price of the default name registering in stable coin per year /// @param paymentParams Payment gateway params constructor( address admin, ISoulboundIdentity _soulBoundIdentity, uint256 _nameRegistrationPricePerYear, PaymentParams memory paymentParams ) PaymentGateway(admin, paymentParams) EIP712("SoulStore", "1.0.0") { if (address(_soulBoundIdentity) == address(0)) revert ZeroAddress(); soulboundIdentity = _soulBoundIdentity; nameRegistrationPricePerYear[0] = _nameRegistrationPricePerYear; // name price for default length per year } /* ========== RESTRICTED FUNCTIONS ========== */ /// @notice Sets the SoulboundIdentity contract address linked to this store /// @dev The caller must have the admin role to call this function /// @param _soulboundIdentity New SoulboundIdentity contract address function setSoulboundIdentity(ISoulboundIdentity _soulboundIdentity) external onlyRole(DEFAULT_ADMIN_ROLE) { if (address(_soulboundIdentity) == address(0)) revert ZeroAddress(); if (soulboundIdentity == _soulboundIdentity) revert SameValue(); soulboundIdentity = _soulboundIdentity; } /// @notice Sets the price of the name registering per one year in stable coin /// @dev The caller must have the admin role to call this function /// @param _nameLength Length of the name /// @param _nameRegistrationPricePerYear New price of the name registering per one /// year in stable coin for that name length per year function setNameRegistrationPricePerYear( uint256 _nameLength, uint256 _nameRegistrationPricePerYear ) external onlyRole(DEFAULT_ADMIN_ROLE) { if ( nameRegistrationPricePerYear[_nameLength] == _nameRegistrationPricePerYear ) revert SameValue(); nameRegistrationPricePerYear[ _nameLength ] = _nameRegistrationPricePerYear; } /// @notice Adds a new authority to the list of authorities /// @dev The caller must have the admin role to call this function /// @param _authority New authority to add function addAuthority(address _authority) external onlyRole(DEFAULT_ADMIN_ROLE) { if (_authority == address(0)) revert ZeroAddress(); if (authorities[_authority]) revert AlreadyAdded(); authorities[_authority] = true; } /// @notice Removes an authority from the list of authorities /// @dev The caller must have the admin role to call this function /// @param _authority Authority to remove function removeAuthority(address _authority) external onlyRole(DEFAULT_ADMIN_ROLE) { if (_authority == address(0)) revert ZeroAddress(); if (!authorities[_authority]) revert AuthorityNotExists(_authority); authorities[_authority] = false; } /// @notice Pauses the smart contract /// @dev The caller must have the admin role to call this function function pause() public onlyRole(DEFAULT_ADMIN_ROLE) { _pause(); } /// @notice Unpauses the smart contract /// @dev The caller must have the admin role to call this function function unpause() public onlyRole(DEFAULT_ADMIN_ROLE) { _unpause(); } /* ========== MUTATIVE FUNCTIONS ========== */ /// @notice Mints a new Soulbound Identity and Name purchasing it /// @dev This function allows the purchase of a soulbound identity and name using /// stable coin (USDC), native token (ETH) or utility token (MASA) /// @param paymentMethod Address of token that user want to pay /// @param name Name of the new soul name /// @param nameLength Length of the name /// @param yearsPeriod Years of validity of the name /// @param tokenURI URI of the NFT /// @param authorityAddress Address of the authority /// @param signature Signature of the authority /// @return TokenId of the new soulbound identity function purchaseIdentityAndName( address paymentMethod, string memory name, uint256 nameLength, uint256 yearsPeriod, string memory tokenURI, address authorityAddress, bytes calldata signature ) external payable whenNotPaused nonReentrant returns (uint256) { _pay( paymentMethod, getPriceForMintingName(paymentMethod, nameLength, yearsPeriod) ); // finalize purchase return _mintSoulboundIdentityAndName( _msgSender(), name, nameLength, yearsPeriod, tokenURI, authorityAddress, signature ); } /// @notice Mints a new Soulbound Identity purchasing it /// @dev This function allows the purchase of a soulbound identity for free /// @return TokenId of the new soulbound identity function purchaseIdentity() external whenNotPaused nonReentrant returns (uint256) { // finalize purchase return _mintSoulboundIdentity(_msgSender()); } /// @notice Mints a new Soul Name purchasing it /// @dev This function allows the purchase of a soul name using /// stable coin (USDC), native token (ETH) or utility token (MASA) /// @param paymentMethod Address of token that user want to pay /// @param to Address of the owner of the new soul name /// @param name Name of the new soul name /// @param nameLength Length of the name /// @param yearsPeriod Years of validity of the name /// @param tokenURI URI of the NFT /// @param authorityAddress Address of the authority /// @param signature Signature of the authority /// @return TokenId of the new sou name function purchaseName( address paymentMethod, address to, string memory name, uint256 nameLength, uint256 yearsPeriod, string memory tokenURI, address authorityAddress, bytes calldata signature ) external payable whenNotPaused nonReentrant returns (uint256) { _pay( paymentMethod, getPriceForMintingName(paymentMethod, nameLength, yearsPeriod) ); // finalize purchase return _mintSoulName( to, name, nameLength, yearsPeriod, tokenURI, authorityAddress, signature ); } /* ========== VIEWS ========== */ /// @notice Returns the price of register a name per year in stable coin for an specific length /// @dev Returns the price for registering per year in USD for an specific name length /// @param nameLength Length of the name /// @return Price in stable coin for that name length function getNameRegistrationPricePerYear(uint256 nameLength) public view returns (uint256) { uint256 price = nameRegistrationPricePerYear[nameLength]; if (price == 0) { // if not found, return the default price price = nameRegistrationPricePerYear[0]; } return price; } /// @notice Returns the price of the name minting /// @dev Returns current pricing for name minting for a given name length and years period /// @param paymentMethod Address of token that user want to pay /// @param nameLength Length of the name /// @param yearsPeriod Years of validity of the name /// @return Current price of the name minting in the given payment method function getPriceForMintingName( address paymentMethod, uint256 nameLength, uint256 yearsPeriod ) public view returns (uint256) { uint256 mintPrice = getNameRegistrationPricePerYear(nameLength).mul( yearsPeriod ); if (mintPrice == 0) { return 0; } else if ( paymentMethod == stableCoin && enabledPaymentMethod[paymentMethod] ) { // stable coin return mintPrice; } else if (enabledPaymentMethod[paymentMethod]) { // ETH and ERC 20 token return _convertFromStableCoin(paymentMethod, mintPrice); } else { revert InvalidPaymentMethod(paymentMethod); } } /* ========== PRIVATE FUNCTIONS ========== */ /// @notice Mints a new Soulbound Identity and Name /// @dev The final step of all purchase options. Will mint a /// new Soulbound Identity and a Soul Name NFT and emit the purchase event /// @param to Address of the owner of the new soul name /// @param name Name of the new soul name /// @param nameLength Length of the name /// @param yearsPeriod Years of validity of the name /// @param tokenURI URI of the NFT /// @param authorityAddress Address of the authority /// @param signature Signature of the authority /// @return TokenId of the new soulbound identity function _mintSoulboundIdentityAndName( address to, string memory name, uint256 nameLength, uint256 yearsPeriod, string memory tokenURI, address authorityAddress, bytes calldata signature ) internal returns (uint256) { _verify( _hash(to, name, nameLength, yearsPeriod, tokenURI), signature, authorityAddress ); // mint Soulbound identity token uint256 tokenId = soulboundIdentity.mintIdentityWithName( to, name, yearsPeriod, tokenURI ); emit SoulboundIdentityAndNamePurchased(to, tokenId, name, yearsPeriod); return tokenId; } /// @notice Mints a new Soulbound Identity /// @dev The final step of all purchase options. Will mint a /// new Soulbound Identity and emit the purchase event /// @param to Address of the owner of the new identity /// @return TokenId of the new soulbound identity function _mintSoulboundIdentity(address to) internal returns (uint256) { // mint Soulbound identity token uint256 tokenId = soulboundIdentity.mint(to); emit SoulboundIdentityPurchased(to, tokenId); return tokenId; } /// @notice Mints a new Soul Name /// @dev The final step of all purchase options. Will mint a /// new Soul Name NFT and emit the purchase event /// @param to Address of the owner of the new soul name /// @param name Name of the new soul name /// @param nameLength Length of the name /// @param yearsPeriod Years of validity of the name /// @param tokenURI URI of the NFT /// @param authorityAddress Address of the authority /// @param signature Signature of the authority /// @return TokenId of the new soul name function _mintSoulName( address to, string memory name, uint256 nameLength, uint256 yearsPeriod, string memory tokenURI, address authorityAddress, bytes calldata signature ) internal returns (uint256) { _verify( _hash(to, name, nameLength, yearsPeriod, tokenURI), signature, authorityAddress ); // mint Soul Name token ISoulName soulName = soulboundIdentity.getSoulName(); uint256 tokenId = soulName.mint(to, name, yearsPeriod, tokenURI); emit SoulNamePurchased(to, tokenId, name, yearsPeriod); return tokenId; } function _verify( bytes32 digest, bytes memory signature, address signer ) internal view { address _signer = ECDSA.recover(digest, signature); if (_signer != signer) revert InvalidSignature(); if (!authorities[_signer]) revert NotAuthorized(_signer); } function _hash( address to, string memory name, uint256 nameLength, uint256 yearsPeriod, string memory tokenURI ) internal view returns (bytes32) { return _hashTypedDataV4( keccak256( abi.encode( keccak256( "MintSoulName(address to,string name,uint256 nameLength,uint256 yearsPeriod,string tokenURI)" ), to, keccak256(bytes(name)), nameLength, yearsPeriod, keccak256(bytes(tokenURI)) ) ) ); } /* ========== MODIFIERS ========== */ /* ========== EVENTS ========== */ event SoulboundIdentityAndNamePurchased( address indexed account, uint256 tokenId, string indexed name, uint256 yearsPeriod ); event SoulboundIdentityPurchased(address indexed account, uint256 tokenId); event SoulNamePurchased( address indexed account, uint256 tokenId, string indexed name, uint256 yearsPeriod ); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/cryptography/draft-EIP712.sol) pragma solidity ^0.8.0; import "./ECDSA.sol"; /** * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. * * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible, * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding * they need in their contracts using a combination of `abi.encode` and `keccak256`. * * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA * ({_hashTypedDataV4}). * * The implementation of the domain separator was designed to be as efficient as possible while still properly updating * the chain id to protect against replay attacks on an eventual fork of the chain. * * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. * * _Available since v3.4._ */ abstract contract EIP712 { /* solhint-disable var-name-mixedcase */ // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to // invalidate the cached domain separator if the chain id changes. bytes32 private immutable _CACHED_DOMAIN_SEPARATOR; uint256 private immutable _CACHED_CHAIN_ID; address private immutable _CACHED_THIS; bytes32 private immutable _HASHED_NAME; bytes32 private immutable _HASHED_VERSION; bytes32 private immutable _TYPE_HASH; /* solhint-enable var-name-mixedcase */ /** * @dev Initializes the domain separator and parameter caches. * * The meaning of `name` and `version` is specified in * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: * * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. * - `version`: the current major version of the signing domain. * * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart * contract upgrade]. */ constructor(string memory name, string memory version) { bytes32 hashedName = keccak256(bytes(name)); bytes32 hashedVersion = keccak256(bytes(version)); bytes32 typeHash = keccak256( "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" ); _HASHED_NAME = hashedName; _HASHED_VERSION = hashedVersion; _CACHED_CHAIN_ID = block.chainid; _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion); _CACHED_THIS = address(this); _TYPE_HASH = typeHash; } /** * @dev Returns the domain separator for the current chain. */ function _domainSeparatorV4() internal view returns (bytes32) { if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) { return _CACHED_DOMAIN_SEPARATOR; } else { return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION); } } function _buildDomainSeparator( bytes32 typeHash, bytes32 nameHash, bytes32 versionHash ) private view returns (bytes32) { return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this))); } /** * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this * function returns the hash of the fully encoded EIP712 message for this domain. * * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: * * ```solidity * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( * keccak256("Mail(address to,string contents)"), * mailTo, * keccak256(bytes(mailContents)) * ))); * address signer = ECDSA.recover(digest, signature); * ``` */ function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol) 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 generally not needed starting with Solidity 0.8, since 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 subtraction 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 // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { 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 ^0.8.7; error AddressDoesNotHaveIdentity(address to); error AlreadyAdded(); error AuthorityNotExists(address authority); error CallerNotOwner(address caller); error CallerNotReader(address caller); error CreditScoreAlreadyCreated(address to); error IdentityAlreadyCreated(address to); error IdentityOwnerIsReader(uint256 readerIdentityId); error InsufficientEthAmount(uint256 amount); error IdentityOwnerNotTokenOwner(uint256 tokenId, uint256 ownerIdentityId); error InvalidPaymentMethod(address paymentMethod); error InvalidSignature(); error InvalidSignatureDate(uint256 signatureDate); error InvalidToken(address token); error InvalidTokenURI(string tokenURI); error LinkAlreadyExists( address token, uint256 tokenId, uint256 readerIdentityId, uint256 signatureDate ); error LinkAlreadyRevoked(); error LinkDoesNotExist(); error NameAlreadyExists(string name); error NameNotFound(string name); error NameRegisteredByOtherAccount(string name, uint256 tokenId); error NotAuthorized(address signer); error NonExistingErc20Token(address erc20token); error RefundFailed(); error SameValue(); error SBTAlreadyLinked(address token); error SoulNameContractNotSet(); error TokenNotFound(uint256 tokenId); error TransferFailed(); error URIAlreadyExists(string tokenURI); error ValidPeriodExpired(uint256 expirationDate); error ZeroAddress(); error ZeroLengthName(string name); error ZeroYearsPeriod(uint256 yearsPeriod);
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import "../libraries/Errors.sol"; import "../interfaces/dex/IUniswapRouter.sol"; /// @title Pay using a Decentralized automated market maker (AMM) when needed /// @author Masa Finance /// @notice Smart contract to call a Dex AMM smart contract to pay to a reserve wallet recipient /// @dev This smart contract will call the Uniswap Router interface, based on /// https://github.com/Uniswap/v2-periphery/blob/master/contracts/interfaces/IUniswapV2Router01.sol abstract contract PaymentGateway is AccessControl { using SafeERC20 for IERC20; using SafeMath for uint256; struct PaymentParams { address swapRouter; // Swap router address address wrappedNativeToken; // Wrapped native token address address stableCoin; // Stable coin to pay the fee in (USDC) address masaToken; // Utility token to pay the fee in (MASA) address reserveWallet; // Wallet that will receive the fee } /* ========== STATE VARIABLES =========================================== */ address public swapRouter; address public wrappedNativeToken; address public stableCoin; // USDC. It also needs to be enabled as payment method, if we want to pay in USDC address public masaToken; // MASA. It also needs to be enabled as payment method, if we want to pay in MASA // enabled payment methods: ETH and ERC20 tokens mapping(address => bool) public enabledPaymentMethod; address[] public enabledPaymentMethods; address public reserveWallet; /* ========== INITIALIZE ================================================ */ /// @notice Creates a new Dex AMM /// @dev Creates a new Decentralized automated market maker (AMM) smart contract, // that will call the Uniswap Router interface /// @param admin Administrator of the smart contract /// @param paymentParams Payment params constructor(address admin, PaymentParams memory paymentParams) { if (paymentParams.swapRouter == address(0)) revert ZeroAddress(); if (paymentParams.wrappedNativeToken == address(0)) revert ZeroAddress(); if (paymentParams.stableCoin == address(0)) revert ZeroAddress(); if (paymentParams.reserveWallet == address(0)) revert ZeroAddress(); _grantRole(DEFAULT_ADMIN_ROLE, admin); swapRouter = paymentParams.swapRouter; wrappedNativeToken = paymentParams.wrappedNativeToken; stableCoin = paymentParams.stableCoin; masaToken = paymentParams.masaToken; reserveWallet = paymentParams.reserveWallet; } /* ========== RESTRICTED FUNCTIONS ====================================== */ /// @notice Sets the swap router address /// @dev The caller must have the admin role to call this function /// @param _swapRouter New swap router address function setSwapRouter(address _swapRouter) external onlyRole(DEFAULT_ADMIN_ROLE) { if (_swapRouter == address(0)) revert ZeroAddress(); if (swapRouter == _swapRouter) revert SameValue(); swapRouter = _swapRouter; } /// @notice Sets the wrapped native token address /// @dev The caller must have the admin role to call this function /// @param _wrappedNativeToken New wrapped native token address function setWrappedNativeToken(address _wrappedNativeToken) external onlyRole(DEFAULT_ADMIN_ROLE) { if (_wrappedNativeToken == address(0)) revert ZeroAddress(); if (wrappedNativeToken == _wrappedNativeToken) revert SameValue(); wrappedNativeToken = _wrappedNativeToken; } /// @notice Sets the stable coin to pay the fee in (USDC) /// @dev The caller must have the admin role to call this function /// @param _stableCoin New stable coin to pay the fee in function setStableCoin(address _stableCoin) external onlyRole(DEFAULT_ADMIN_ROLE) { if (_stableCoin == address(0)) revert ZeroAddress(); if (stableCoin == _stableCoin) revert SameValue(); stableCoin = _stableCoin; } /// @notice Sets the utility token to pay the fee in (MASA) /// @dev The caller must have the admin role to call this function /// It can be set to address(0) to disable paying in MASA /// @param _masaToken New utility token to pay the fee in function setMasaToken(address _masaToken) external onlyRole(DEFAULT_ADMIN_ROLE) { if (masaToken == _masaToken) revert SameValue(); masaToken = _masaToken; } /// @notice Adds a new token as a valid payment method /// @dev The caller must have the admin role to call this function /// @param _paymentMethod New token to add function enablePaymentMethod(address _paymentMethod) external onlyRole(DEFAULT_ADMIN_ROLE) { if (enabledPaymentMethod[_paymentMethod]) revert AlreadyAdded(); enabledPaymentMethod[_paymentMethod] = true; enabledPaymentMethods.push(_paymentMethod); } /// @notice Removes a token as a valid payment method /// @dev The caller must have the admin role to call this function /// @param _paymentMethod Token to remove function disablePaymentMethod(address _paymentMethod) external onlyRole(DEFAULT_ADMIN_ROLE) { if (!enabledPaymentMethod[_paymentMethod]) revert NonExistingErc20Token(_paymentMethod); enabledPaymentMethod[_paymentMethod] = false; for (uint256 i = 0; i < enabledPaymentMethods.length; i++) { if (enabledPaymentMethods[i] == _paymentMethod) { enabledPaymentMethods[i] = enabledPaymentMethods[ enabledPaymentMethods.length - 1 ]; enabledPaymentMethods.pop(); break; } } } /// @notice Set the reserve wallet /// @dev The caller must have the admin role to call this function /// @param _reserveWallet New reserve wallet function setReserveWallet(address _reserveWallet) external onlyRole(DEFAULT_ADMIN_ROLE) { if (_reserveWallet == address(0)) revert ZeroAddress(); if (_reserveWallet == reserveWallet) revert SameValue(); reserveWallet = _reserveWallet; } /* ========== MUTATIVE FUNCTIONS ======================================== */ /* ========== VIEWS ===================================================== */ /// @notice Returns all available payment methods /// @dev Returns the address of all available payment methods /// @return Array of all enabled payment methods function getEnabledPaymentMethods() external view returns (address[] memory) { return enabledPaymentMethods; } /* ========== PRIVATE FUNCTIONS ========================================= */ /// @notice Converts an amount from a stable coin to a payment method amount /// @dev This method will perform the swap between the stable coin and the /// payment method, and return the amount of the payment method, /// performing the swap if necessary /// @param paymentMethod Address of token that user want to pay /// @param amount Price to be converted in the specified payment method function _convertFromStableCoin(address paymentMethod, uint256 amount) internal view returns (uint256) { if (!enabledPaymentMethod[paymentMethod] || paymentMethod == stableCoin) revert InvalidToken(paymentMethod); if (paymentMethod == address(0)) { return _estimateSwapAmount(wrappedNativeToken, stableCoin, amount); } else { return _estimateSwapAmount(paymentMethod, stableCoin, amount); } } /// @notice Performs the payment in any payment method /// @dev This method will transfer the funds to the reserve wallet, performing /// the swap if necessary /// @param paymentMethod Address of token that user want to pay /// @param amount Price to be paid in the specified payment method function _pay(address paymentMethod, uint256 amount) internal { if (amount == 0) return; if (!enabledPaymentMethod[paymentMethod]) revert InvalidPaymentMethod(paymentMethod); if (paymentMethod == address(0)) { // ETH if (msg.value < amount) revert InsufficientEthAmount(amount); (bool success, ) = payable(reserveWallet).call{value: amount}(""); if (!success) revert TransferFailed(); if (msg.value > amount) { // return diff uint256 refund = msg.value.sub(amount); (success, ) = payable(msg.sender).call{value: refund}(""); if (!success) revert RefundFailed(); } } else { // ERC20 token, including MASA and USDC IERC20(paymentMethod).safeTransferFrom( msg.sender, reserveWallet, amount ); } } function _estimateSwapAmount( address _fromToken, address _toToken, uint256 _amountOut ) private view returns (uint256) { uint256[] memory amounts; address[] memory path; path = _getPathFromTokenToToken(_fromToken, _toToken); amounts = IUniswapRouter(swapRouter).getAmountsIn(_amountOut, path); return amounts[0]; } function _getPathFromTokenToToken(address fromToken, address toToken) private view returns (address[] memory) { if (fromToken == wrappedNativeToken || toToken == wrappedNativeToken) { address[] memory path = new address[](2); path[0] = fromToken == wrappedNativeToken ? wrappedNativeToken : fromToken; path[1] = toToken == wrappedNativeToken ? wrappedNativeToken : toToken; return path; } else { address[] memory path = new address[](3); path[0] = fromToken; path[1] = wrappedNativeToken; path[2] = toToken; return path; } } /* ========== MODIFIERS ================================================= */ /* ========== EVENTS ==================================================== */ }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; import "../tokens/SBT/ISBT.sol"; import "./ISoulName.sol"; interface ISoulboundIdentity is ISBT { function mint(address to) external returns (uint256); function mintIdentityWithName( address to, string memory name, uint256 yearsPeriod, string memory _tokenURI ) external returns (uint256); function getSoulName() external view returns (ISoulName); function tokenOfOwner(address owner) external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; interface ISoulName { function mint( address to, string memory name, uint256 yearsPeriod, string memory _tokenURI ) external returns (uint256); function getExtension() external view returns (string memory); function isAvailable(string memory name) external view returns (bool available); function getTokenData(string memory name) external view returns ( string memory sbtName, bool linked, uint256 identityId, uint256 tokenId, uint256 expirationDate, bool active ); function getTokenId(string memory name) external view returns (uint256); function getSoulNames(address owner) external view returns (string[] memory sbtNames); function getSoulNames(uint256 identityId) external view returns (string[] memory sbtNames); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.3) (utils/cryptography/ECDSA.sol) pragma solidity ^0.8.0; import "../Strings.sol"; /** * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. * * These functions can be used to verify that a message was signed by the holder * of the private keys of a given address. */ library ECDSA { enum RecoverError { NoError, InvalidSignature, InvalidSignatureLength, InvalidSignatureS, InvalidSignatureV } function _throwError(RecoverError error) private pure { if (error == RecoverError.NoError) { return; // no error: do nothing } else if (error == RecoverError.InvalidSignature) { revert("ECDSA: invalid signature"); } else if (error == RecoverError.InvalidSignatureLength) { revert("ECDSA: invalid signature length"); } else if (error == RecoverError.InvalidSignatureS) { revert("ECDSA: invalid signature 's' value"); } else if (error == RecoverError.InvalidSignatureV) { revert("ECDSA: invalid signature 'v' value"); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature` or error string. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. * * Documentation for signature generation: * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] * * _Available since v4.3._ */ function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { if (signature.length == 65) { bytes32 r; bytes32 s; uint8 v; // ecrecover takes the signature parameters, and the only way to get them // currently is to use assembly. /// @solidity memory-safe-assembly assembly { r := mload(add(signature, 0x20)) s := mload(add(signature, 0x40)) v := byte(0, mload(add(signature, 0x60))) } return tryRecover(hash, v, r, s); } else { return (address(0), RecoverError.InvalidSignatureLength); } } /** * @dev Returns the address that signed a hashed message (`hash`) with * `signature`. This address can then be used for verification purposes. * * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: * this function rejects them by requiring the `s` value to be in the lower * half order, and the `v` value to be either 27 or 28. * * IMPORTANT: `hash` _must_ be the result of a hash operation for the * verification to be secure: it is possible to craft signatures that * recover to arbitrary addresses for non-hashed data. A safe way to ensure * this is by receiving a hash of the original message (which may otherwise * be too long), and then calling {toEthSignedMessageHash} on it. */ function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, signature); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. * * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] * * _Available since v4.3._ */ function tryRecover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address, RecoverError) { bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); uint8 v = uint8((uint256(vs) >> 255) + 27); return tryRecover(hash, v, r, s); } /** * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. * * _Available since v4.2._ */ function recover( bytes32 hash, bytes32 r, bytes32 vs ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, r, vs); _throwError(error); return recovered; } /** * @dev Overload of {ECDSA-tryRecover} that receives the `v`, * `r` and `s` signature fields separately. * * _Available since v4.3._ */ function tryRecover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address, RecoverError) { // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most // signatures from current libraries generate a unique signature with an s-value in the lower half order. // // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept // these malleable signatures as well. if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { return (address(0), RecoverError.InvalidSignatureS); } if (v != 27 && v != 28) { return (address(0), RecoverError.InvalidSignatureV); } // If the signature is valid (and not malleable), return the signer address address signer = ecrecover(hash, v, r, s); if (signer == address(0)) { return (address(0), RecoverError.InvalidSignature); } return (signer, RecoverError.NoError); } /** * @dev Overload of {ECDSA-recover} that receives the `v`, * `r` and `s` signature fields separately. */ function recover( bytes32 hash, uint8 v, bytes32 r, bytes32 s ) internal pure returns (address) { (address recovered, RecoverError error) = tryRecover(hash, v, r, s); _throwError(error); return recovered; } /** * @dev Returns an Ethereum Signed Message, created from a `hash`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { // 32 is the length in bytes of hash, // enforced by the type signature above return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); } /** * @dev Returns an Ethereum Signed Message, created from `s`. This * produces hash corresponding to the one signed with the * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] * JSON-RPC method as part of EIP-191. * * See {recover}. */ function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); } /** * @dev Returns an Ethereum Signed Typed Data, created from a * `domainSeparator` and a `structHash`. This produces hash corresponding * to the one signed with the * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] * JSON-RPC method as part of EIP-712. * * See {recover}. */ function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // 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); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `from` to `to` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; /// @title Uniswap Router interface /// @author Masa Finance /// @notice Interface of the Uniswap Router contract /// @dev This interface is used to interact with the Uniswap Router contract, /// and gets the most important functions of the contract. It's based on /// https://github.com/Uniswap/v2-periphery/blob/master/contracts/interfaces/IUniswapV2Router01.sol interface IUniswapRouter { function swapExactTokensForTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external returns (uint256[] memory amounts); function swapExactETHForTokens( uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external payable returns (uint256[] memory amounts); function swapExactTokensForETH( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external returns (uint256[] memory amounts); function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts); function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.7; import "@openzeppelin/contracts/utils/introspection/IERC165.sol"; interface ISBT is IERC165 { /// @dev This emits when an SBT is newly minted. /// This event emits when SBTs are created event Mint(address indexed _owner, uint256 indexed _tokenId); /// @dev This emits when an SBT is burned /// This event emits when SBTs are destroyed event Burn(address indexed _owner, uint256 indexed _tokenId); /// @notice Count all SBTs assigned to an owner /// @dev SBTs assigned to the zero address are considered invalid, and this /// function throws for queries about the zero address. /// @param _owner An address for whom to query the balance /// @return The number of SBTs owned by `_owner`, possibly zero function balanceOf(address _owner) external view returns (uint256); /// @notice Find the owner of an SBT /// @dev SBTs assigned to zero address are considered invalid, and queries /// about them do throw. /// @param _tokenId The identifier for an SBT /// @return The address of the owner of the SBT function ownerOf(uint256 _tokenId) external view returns (address); }
{ "optimizer": { "enabled": true, "runs": 1, "details": { "yul": false } }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "metadata": { "useLiteralContent": true }, "libraries": {} }
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- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"admin","type":"address"},{"internalType":"contract ISoulboundIdentity","name":"_soulBoundIdentity","type":"address"},{"internalType":"uint256","name":"_nameRegistrationPricePerYear","type":"uint256"},{"components":[{"internalType":"address","name":"swapRouter","type":"address"},{"internalType":"address","name":"wrappedNativeToken","type":"address"},{"internalType":"address","name":"stableCoin","type":"address"},{"internalType":"address","name":"masaToken","type":"address"},{"internalType":"address","name":"reserveWallet","type":"address"}],"internalType":"struct PaymentGateway.PaymentParams","name":"paymentParams","type":"tuple"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"AlreadyAdded","type":"error"},{"inputs":[{"internalType":"address","name":"authority","type":"address"}],"name":"AuthorityNotExists","type":"error"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"InsufficientEthAmount","type":"error"},{"inputs":[{"internalType":"address","name":"paymentMethod","type":"address"}],"name":"InvalidPaymentMethod","type":"error"},{"inputs":[],"name":"InvalidSignature","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"InvalidToken","type":"error"},{"inputs":[{"internalType":"address","name":"erc20token","type":"address"}],"name":"NonExistingErc20Token","type":"error"},{"inputs":[{"internalType":"address","name":"signer","type":"address"}],"name":"NotAuthorized","type":"error"},{"inputs":[],"name":"RefundFailed","type":"error"},{"inputs":[],"name":"SameValue","type":"error"},{"inputs":[],"name":"TransferFailed","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"uint256","name":"yearsPeriod","type":"uint256"}],"name":"SoulNamePurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"uint256","name":"yearsPeriod","type":"uint256"}],"name":"SoulboundIdentityAndNamePurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"SoulboundIdentityPurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_authority","type":"address"}],"name":"addAuthority","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"authorities","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_paymentMethod","type":"address"}],"name":"disablePaymentMethod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_paymentMethod","type":"address"}],"name":"enablePaymentMethod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"enabledPaymentMethod","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"enabledPaymentMethods","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getEnabledPaymentMethods","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"nameLength","type":"uint256"}],"name":"getNameRegistrationPricePerYear","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"paymentMethod","type":"address"},{"internalType":"uint256","name":"nameLength","type":"uint256"},{"internalType":"uint256","name":"yearsPeriod","type":"uint256"}],"name":"getPriceForMintingName","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"masaToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"nameRegistrationPricePerYear","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"purchaseIdentity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"paymentMethod","type":"address"},{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"nameLength","type":"uint256"},{"internalType":"uint256","name":"yearsPeriod","type":"uint256"},{"internalType":"string","name":"tokenURI","type":"string"},{"internalType":"address","name":"authorityAddress","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"purchaseIdentityAndName","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"paymentMethod","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"string","name":"name","type":"string"},{"internalType":"uint256","name":"nameLength","type":"uint256"},{"internalType":"uint256","name":"yearsPeriod","type":"uint256"},{"internalType":"string","name":"tokenURI","type":"string"},{"internalType":"address","name":"authorityAddress","type":"address"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"purchaseName","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_authority","type":"address"}],"name":"removeAuthority","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reserveWallet","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_masaToken","type":"address"}],"name":"setMasaToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_nameLength","type":"uint256"},{"internalType":"uint256","name":"_nameRegistrationPricePerYear","type":"uint256"}],"name":"setNameRegistrationPricePerYear","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_reserveWallet","type":"address"}],"name":"setReserveWallet","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract ISoulboundIdentity","name":"_soulboundIdentity","type":"address"}],"name":"setSoulboundIdentity","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_stableCoin","type":"address"}],"name":"setStableCoin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_swapRouter","type":"address"}],"name":"setSwapRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_wrappedNativeToken","type":"address"}],"name":"setWrappedNativeToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"soulboundIdentity","outputs":[{"internalType":"contract ISoulboundIdentity","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stableCoin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"swapRouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"wrappedNativeToken","outputs":[{"internalType":"address","name":"","type":"address"}],"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)
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
-----Decoded View---------------
Arg [0] : admin (address): 0xBb4125C48e8c69b0F06E0c635dfCd0Aa250fcbF9
Arg [1] : _soulBoundIdentity (address): 0x8903D8D4F4c06814D7ecb42b1258E2209d53A7d4
Arg [2] : _nameRegistrationPricePerYear (uint256): 10000000
Arg [3] : paymentParams (tuple): System.Collections.Generic.List`1[Nethereum.ABI.FunctionEncoding.ParameterOutput]
-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 000000000000000000000000bb4125c48e8c69b0f06e0c635dfcd0aa250fcbf9
Arg [1] : 0000000000000000000000008903d8d4f4c06814d7ecb42b1258e2209d53a7d4
Arg [2] : 0000000000000000000000000000000000000000000000000000000000989680
Arg [3] : 0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d
Arg [4] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [5] : 000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [7] : 000000000000000000000000ccfa6a842151f53e18a5d56edfd0177fa8c8d7f5
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Multichain Portfolio | 30 Chains
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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.