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Contract Source Code Verified (Exact Match)
Contract Name:
GasMonetization
Compiler Version
v0.8.27+commit.40a35a09
Optimization Enabled:
Yes with 200 runs
Other Settings:
cancun EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.27; import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; import {AccessControlUpgradeable} from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol"; import {Address} from "@openzeppelin/contracts/utils/Address.sol"; import {ISfc} from "./interfaces/ISfc.sol"; /** * @title Fee Monetization Contract for Sonic network * @custom:security-contact [email protected] */ contract GasMonetization is AccessControlUpgradeable, UUPSUpgradeable { using Address for address payable; event FundsAdded(address indexed funder, uint256 amount); event FundsWithdrawn(address indexed recipient, uint256 amount); event ProjectAdded( uint256 indexed projectId, address indexed owner, address indexed rewardsRecipient, string metadataUri, uint256 activeFromEpoch, address[] contracts ); event ProjectSuspended(uint256 indexed projectId, uint256 suspendedOnEpochNumber); event ProjectEnabled(uint256 indexed projectId, uint256 enabledOnEpochNumber); event ProjectContractAdded(uint256 indexed projectId, address indexed contractAddress); event ProjectContractRemoved(uint256 indexed projectId, address indexed contractAddress); event ProjectMetadataUriUpdated(uint256 indexed projectId, string metadataUri); event ProjectRewardsRecipientUpdated(uint256 indexed projectId, address recipient); event ProjectOwnerUpdated(uint256 indexed projectId, address owner); event RewardClaimRequested(uint256 indexed projectId, uint256 requestEpochNumber); event RewardClaimCompleted(uint256 indexed projectId, uint256 epochNumber, uint256 amount); event RewardClaimCanceled(uint256 indexed projectId, uint256 epochNumber); event InvalidRewardClaimAmount( uint256 indexed projectId, uint256 requestEpochNumber, uint256 amount, uint256 diffAmount ); event RewardClaimEpochsLimitUpdated(uint256 limit); event RewardClaimConfirmationsLimitUpdated(uint256 limit); event SfcAddressUpdated(address sfcAddress); /** * @notice Accounts with this role are eligible to fund this contract. */ bytes32 public constant FUNDER_ROLE = keccak256("FUNDER"); /** * @notice Accounts with this role are eligible to handle funds of this contract. */ bytes32 public constant FUNDS_MANAGER_ROLE = keccak256("FUNDS_MANAGER"); /** * @notice Accounts with this role are eligible to manage projects. */ bytes32 public constant PROJECTS_MANAGER_ROLE = keccak256("PROJECTS_MANAGER"); /** * @notice Accounts with this role are eligible to provide data related to reward claims. */ bytes32 public constant REWARDS_ORACLE_ROLE = keccak256("REWARDS_ORACLE"); /** * @notice Project represents a project that is eligible to claim rewards. This structure consists * of project's metadata uri and all related contracts, which will be used to calculate rewards. */ struct Project { address owner; address rewardsRecipient; string metadataUri; uint256 lastClaimEpoch; uint256 activeFromEpoch; // Used for disabled projects, when value is 0, then project has no expiration. uint256 activeToEpoch; } /** * @dev Registry of projects implemented as "project id" => "project" mapping. */ mapping(uint256 projectId => Project) public projects; /** * @dev Registry of contracts and assigned projects implemented as "contract address" => "project id" mapping. */ mapping(address contractAddress => uint256 projectId) public contracts; /** * @dev Sfc contract used for obtaining current epoch. */ ISfc public sfc; /** * @dev Restricts reward claims frequency by specified epochs number. */ uint256 public minEpochsBetweenClaims; /** * @dev Restricts how many confirmations we need to make reward claim. */ uint256 public requiredRewardClaimConfirmations; /** * @dev Last epoch id when contract was funded. */ uint256 public lastFundedEpoch; /** * @notice PendingRewardClaimRequest represents a pending reward claim of a project. */ struct PendingRewardClaimRequest { uint256 requestedOnEpoch; uint256 confirmationsCount; uint256 confirmedAmount; // Array of addresses providing confirmation to prevent obtaining confirmations from single address. // Mapping can not be used, because it won't get deleted when request is deleted. // From solidity docs (https://docs.soliditylang.org/en/develop/types.html#delete): // Delete has no effect on whole mappings (as the keys of mappings may be arbitrary and are generally unknown). // So if you delete a struct, it will reset all members that are not mappings and also recurse into the members // unless they are mappings. However, individual keys and what they map to can be deleted. address[] confirmedBy; } /** * @dev Registry of pending reward claims implemented as "project id" => "pending reward claim" mapping. */ mapping(uint256 projectId => PendingRewardClaimRequest) public pendingRewardClaims; /** * @dev Internal counter for identifiers of projects. */ uint256 public lastProjectId; /** @custom:oz-upgrades-unsafe-allow constructor */ constructor() { _disableInitializers(); } /** * @notice Initialize the contract. * @param admin Address of admin. * @param sfcAddress Address of SFC contract. * @param rewardClaimEpochsFrequencyLimit Limits how often withdrawals can be done. * @param rewardClaimRequiredConfirmations Required confirmations to make claim. */ function initialize( address admin, address sfcAddress, uint256 rewardClaimEpochsFrequencyLimit, uint256 rewardClaimRequiredConfirmations ) external initializer { __AccessControl_init(); __UUPSUpgradeable_init(); sfc = ISfc(sfcAddress); minEpochsBetweenClaims = rewardClaimEpochsFrequencyLimit; requiredRewardClaimConfirmations = rewardClaimRequiredConfirmations; _grantRole(DEFAULT_ADMIN_ROLE, admin); // set sfc as funder by default _grantRole(FUNDER_ROLE, sfcAddress); // set funds manager role by default to adin _grantRole(FUNDS_MANAGER_ROLE, admin); } /** * @notice New reward claim. Only project owner can request. * @param projectId Id of project. */ function newRewardClaim(uint256 projectId) external { require(projects[projectId].owner == _msgSender(), "GasMonetization: not owner"); require(pendingRewardClaims[projectId].requestedOnEpoch == 0, "GasMonetization: has pending claim"); require( projects[projectId].activeToEpoch == 0 || projects[projectId].lastClaimEpoch < projects[projectId].activeToEpoch, "GasMonetization: project disabled" ); uint256 epoch = sfc.currentSealedEpoch(); uint256 lastProjectClaimEpoch = projects[projectId].lastClaimEpoch; require( lastProjectClaimEpoch < lastFundedEpoch && epoch - lastProjectClaimEpoch > minEpochsBetweenClaims, "GasMonetization: must wait to claim" ); // prepare new claim pendingRewardClaims[projectId].requestedOnEpoch = epoch; emit RewardClaimRequested(projectId, epoch); } /** * @notice Confirm reward claim. * @param projectId Id of project. * @param epochNumber Number of epoch when request was made. * @param amount Amount that owner should receive. */ function confirmRewardClaim(uint256 projectId, uint256 epochNumber, uint256 amount) external { require(hasRole(REWARDS_ORACLE_ROLE, _msgSender()), "GasMonetization: not rewards oracle"); require(hasPendingRewardClaim(projectId, epochNumber), "GasMonetization: no claim request"); require(amount > 0, "GasMonetization: no amount to claim"); PendingRewardClaimRequest storage request = pendingRewardClaims[projectId]; // set amount when it is first confirmation if (request.confirmationsCount == 0) { request.confirmedAmount = amount; } else if (request.confirmedAmount != amount) { // otherwise if amount is different, invalidate data we obtained so far // and emit event, so next attempt can be made emit InvalidRewardClaimAmount(projectId, epochNumber, request.confirmedAmount, amount); delete pendingRewardClaims[projectId]; request.requestedOnEpoch = epochNumber; return; } // validate that provider has not already provided data for (uint256 i = 0; i < request.confirmedBy.length; ++i) { require(request.confirmedBy[i] != _msgSender(), "GasMonetization: already provided"); } // send amount if confirmations threshold is reached and delete request if (request.confirmationsCount + 1 >= requiredRewardClaimConfirmations) { delete pendingRewardClaims[projectId]; projects[projectId].lastClaimEpoch = epochNumber; payable(projects[projectId].rewardsRecipient).sendValue(amount); emit RewardClaimCompleted(projectId, epochNumber, amount); return; } // gas optimization request.confirmedBy.push(_msgSender()); request.confirmationsCount++; } /** * @notice Cancel reward claim request. * @param projectId Id of project. * @param epochNumber Epoch number of claim request. */ function cancelRewardClaim(uint256 projectId, uint256 epochNumber) external { require(hasPendingRewardClaim(projectId, epochNumber), "GasMonetization: no claim request"); PendingRewardClaimRequest storage request = pendingRewardClaims[projectId]; // only owner or data provider can cancel claim request if (projects[projectId].owner == _msgSender()) { // also owner must wait to cancel claim request until claim epoch limit is reached require( sfc.currentEpoch() - request.requestedOnEpoch > minEpochsBetweenClaims, "GasMonetization: must wait to cancel" ); } else { require(hasRole(REWARDS_ORACLE_ROLE, _msgSender()), "GasMonetization: not reward oracle or owner"); } delete pendingRewardClaims[projectId]; emit RewardClaimCanceled(projectId, epochNumber); } /** * @notice Add project into registry. * @param owner Address of project owner. * @param rewardsRecipient Address of rewards receiver. * @param metadataUri Uri of project's metadata. * @param projectContracts Array of related contracts. */ function addProject( address owner, address rewardsRecipient, string calldata metadataUri, address[] calldata projectContracts ) external { require(hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager"); require(bytes(metadataUri).length > 0, "GasMonetization: empty metadata uri"); lastProjectId++; projects[lastProjectId] = Project({ owner: owner, rewardsRecipient: rewardsRecipient, metadataUri: metadataUri, lastClaimEpoch: 0, activeFromEpoch: sfc.currentEpoch(), activeToEpoch: 0 }); for (uint256 i = 0; i < projectContracts.length; ++i) { require(contracts[projectContracts[i]] == 0, "GasMonetization: contract already registered"); contracts[projectContracts[i]] = lastProjectId; } emit ProjectAdded( lastProjectId, projects[lastProjectId].owner, projects[lastProjectId].rewardsRecipient, projects[lastProjectId].metadataUri, projects[lastProjectId].activeFromEpoch, projectContracts ); } /** * @notice Suspend project from receiving rewards. * @param projectId Id of project. */ function suspendProject(uint256 projectId) external { require(hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager"); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); require(projects[projectId].activeToEpoch == 0, "GasMonetization: project suspended"); projects[projectId].activeToEpoch = sfc.currentEpoch(); emit ProjectSuspended(projectId, projects[projectId].activeToEpoch); } /** * @notice Enable project to receive rewards. * @param projectId Id of project. */ function enableProject(uint256 projectId) external { require(hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager"); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); require(projects[projectId].activeToEpoch != 0, "GasMonetization: project active"); projects[projectId].activeFromEpoch = sfc.currentEpoch(); projects[projectId].activeToEpoch = 0; emit ProjectEnabled(projectId, projects[projectId].activeFromEpoch); } /** * @notice Add project contract into registry. * @param projectId Id of project. * @param contractAddress Address of project's contract. */ function addProjectContract(uint256 projectId, address contractAddress) external { require(hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager"); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); require(contracts[contractAddress] == 0, "GasMonetization: contract already registered"); contracts[contractAddress] = projectId; emit ProjectContractAdded(projectId, contractAddress); } /** * @notice Remove project contract from registry. * @param projectId Id of project. * @param contractAddress Address of contract. */ function removeProjectContract(uint256 projectId, address contractAddress) external { require(hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager"); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); require(contracts[contractAddress] == projectId, "GasMonetization: contract not registered"); delete contracts[contractAddress]; emit ProjectContractRemoved(projectId, contractAddress); } /** * @notice Update project's metadata uri. * @param projectId Id of project. * @param metadataUri Uri of project's metadata. */ function updateProjectMetadataUri(uint256 projectId, string calldata metadataUri) external { require(hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager"); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); require(bytes(metadataUri).length > 0, "GasMonetization: empty metadata uri"); projects[projectId].metadataUri = metadataUri; emit ProjectMetadataUriUpdated(projectId, metadataUri); } /** * @notice Update project's rewards recipient. * @param projectId Id of project. * @param recipient Address of recipient. */ function updateProjectRewardsRecipient(uint256 projectId, address recipient) external { require( projects[projectId].owner == _msgSender() || hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager or owner" ); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); projects[projectId].rewardsRecipient = recipient; emit ProjectRewardsRecipientUpdated(projectId, recipient); } /** * @notice Update project's owner. * @param projectId Id of project. * @param owner Address of owner. */ function updateProjectOwner(uint256 projectId, address owner) external { require( projects[projectId].owner == _msgSender() || hasRole(PROJECTS_MANAGER_ROLE, _msgSender()), "GasMonetization: not projects manager or owner" ); require(projects[projectId].owner != address(0), "GasMonetization: project does not exist"); projects[projectId].owner = owner; emit ProjectOwnerUpdated(projectId, owner); } /** * @notice Add funds. */ function addFunds() public payable { require(hasRole(FUNDER_ROLE, _msgSender()), "GasMonetization: not funder"); require(msg.value > 0, "GasMonetization: no funds sent"); lastFundedEpoch = sfc.currentSealedEpoch(); emit FundsAdded(_msgSender(), msg.value); } /** * @notice Withdraw funds. * @param recipient Address of recipient. * @param amount Amount to be withdrawn. */ function withdrawFunds(address payable recipient, uint256 amount) external { require(hasRole(FUNDS_MANAGER_ROLE, _msgSender()), "GasMonetization: not funds manager"); recipient.sendValue(amount); emit FundsWithdrawn(recipient, amount); } /** * @notice Withdraw all funds. * @param recipient Address of recipient. */ function withdrawAllFunds(address payable recipient) external { require(hasRole(FUNDS_MANAGER_ROLE, _msgSender()), "GasMonetization: not funds manager"); uint256 balance = address(this).balance; recipient.sendValue(balance); emit FundsWithdrawn(recipient, balance); } /** * @notice Update reward claim epochs frequency limit. * @param limit New limit. */ function updateRewardClaimEpochsFrequencyLimit(uint256 limit) external { require(hasRole(DEFAULT_ADMIN_ROLE, _msgSender()), "GasMonetization: not admin"); minEpochsBetweenClaims = limit; emit RewardClaimEpochsLimitUpdated(limit); } /** * @notice Update reward claim required confirmations. * @param limit New limit. */ function updateRewardClaimRequiredConfirmations(uint256 limit) public { require(hasRole(DEFAULT_ADMIN_ROLE, _msgSender()), "GasMonetization: not admin"); requiredRewardClaimConfirmations = limit; emit RewardClaimConfirmationsLimitUpdated(limit); } /** * @notice Update sfc address. * @param newSfc New sfc address. */ function updateSfcAddress(address newSfc) external { require(hasRole(DEFAULT_ADMIN_ROLE, _msgSender()), "GasMonetization: not admin"); sfc = ISfc(newSfc); emit SfcAddressUpdated(newSfc); } /** * @notice Check owner has pending reward claim on given epoch id. * @param projectId Id of project. * @param epochId Id of epoch when request was made. */ function hasPendingRewardClaim(uint256 projectId, uint256 epochId) public view returns(bool) { return pendingRewardClaims[projectId].requestedOnEpoch == epochId; } /** * @notice Get project owner. * @param projectId Project id. */ function getProjectOwner(uint256 projectId) external view returns(address) { return projects[projectId].owner; } /** * @notice Get project rewards recipient. * @param projectId Project id. */ function getProjectRewardsRecipient(uint256 projectId) external view returns(address) { return projects[projectId].rewardsRecipient; } /** * @notice Get project metadata uri. * @param projectId Project id. */ function getProjectMetadataUri(uint256 projectId) external view returns(string memory) { return projects[projectId].metadataUri; } /** * @notice Get project last claim epoch. * @param projectId Project id. */ function getProjectLastClaimEpoch(uint256 projectId) external view returns(uint256) { return projects[projectId].lastClaimEpoch; } /** * @notice Get project active from epoch. * @param projectId Project id. */ function getProjectActiveFromEpoch(uint256 projectId) external view returns(uint256) { return projects[projectId].activeFromEpoch; } /** * @notice Get project active to epoch. * @param projectId Project id. */ function getProjectActiveToEpoch(uint256 projectId) external view returns(uint256) { return projects[projectId].activeToEpoch; } /** * @notice Get project id of given contract. * @param contractAddress Address of a contract. */ function getProjectIdOfContract(address contractAddress) external view returns(uint256) { return contracts[contractAddress]; } /** * @notice Get epoch of pending reward claim for given project id. * @param projectId Project id. */ function getPendingRewardClaimEpoch(uint256 projectId) external view returns(uint256) { return pendingRewardClaims[projectId].requestedOnEpoch; } /** * @notice Get pending reward claim confirmations count. * @param projectId Project id. */ function getPendingRewardClaimConfirmationsCount(uint256 projectId) public view returns(uint256) { return pendingRewardClaims[projectId].confirmationsCount; } /** * @notice Get pending reward claim confirmed amount. * @param projectId Project id. */ function getPendingRewardClaimConfirmedAmount(uint256 projectId) public view returns(uint256) { return pendingRewardClaims[projectId].confirmedAmount; } /** * @notice Get pending reward claim addresses confirming current claim. * @param projectId Project id. */ function getPendingRewardClaimConfirmedBy(uint256 projectId) public view returns(address[] memory) { return pendingRewardClaims[projectId].confirmedBy; } /** * @notice Receive function implementation to handle adding funds directly via "send" or "transfer" methods. */ receive() external payable { addFunds(); } /** * @dev Override the upgrade authorization check to allow upgrades only from the owner. */ // solhint-disable-next-line no-empty-blocks function _authorizeUpgrade(address) internal override onlyRole(DEFAULT_ADMIN_ROLE) {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol) pragma solidity ^0.8.20; import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol"; import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol"; import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol"; import {Initializable} from "../proxy/utils/Initializable.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: * * ```solidity * 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}: * * ```solidity * 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. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable { struct RoleData { mapping(address account => bool) hasRole; bytes32 adminRole; } bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl struct AccessControlStorage { mapping(bytes32 role => RoleData) _roles; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800; function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) { assembly { $.slot := AccessControlStorageLocation } } /** * @dev Modifier that checks that an account has a specific role. Reverts * with an {AccessControlUnauthorizedAccount} error including the required role. */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } function __AccessControl_init() internal onlyInitializing { } function __AccessControl_init_unchained() internal onlyInitializing { } /** * @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 returns (bool) { AccessControlStorage storage $ = _getAccessControlStorage(); return $._roles[role].hasRole[account]; } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()` * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier. */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account` * is missing `role`. */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert AccessControlUnauthorizedAccount(account, role); } } /** * @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 returns (bytes32) { AccessControlStorage storage $ = _getAccessControlStorage(); 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 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 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 `callerConfirmation`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address callerConfirmation) public virtual { if (callerConfirmation != _msgSender()) { revert AccessControlBadConfirmation(); } _revokeRole(role, callerConfirmation); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { AccessControlStorage storage $ = _getAccessControlStorage(); bytes32 previousAdminRole = getRoleAdmin(role); $._roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual returns (bool) { AccessControlStorage storage $ = _getAccessControlStorage(); if (!hasRole(role, account)) { $._roles[role].hasRole[account] = true; emit RoleGranted(role, account, _msgSender()); return true; } else { return false; } } /** * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual returns (bool) { AccessControlStorage storage $ = _getAccessControlStorage(); if (hasRole(role, account)) { $._roles[role].hasRole[account] = false; emit RoleRevoked(role, account, _msgSender()); return true; } else { return false; } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.20; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ```solidity * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Storage of the initializable contract. * * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions * when using with upgradeable contracts. * * @custom:storage-location erc7201:openzeppelin.storage.Initializable */ struct InitializableStorage { /** * @dev Indicates that the contract has been initialized. */ uint64 _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool _initializing; } // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff)) bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00; /** * @dev The contract is already initialized. */ error InvalidInitialization(); /** * @dev The contract is not initializing. */ error NotInitializing(); /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint64 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. * * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in * production. * * Emits an {Initialized} event. */ modifier initializer() { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); // Cache values to avoid duplicated sloads bool isTopLevelCall = !$._initializing; uint64 initialized = $._initialized; // Allowed calls: // - initialSetup: the contract is not in the initializing state and no previous version was // initialized // - construction: the contract is initialized at version 1 (no reininitialization) and the // current contract is just being deployed bool initialSetup = initialized == 0 && isTopLevelCall; bool construction = initialized == 1 && address(this).code.length == 0; if (!initialSetup && !construction) { revert InvalidInitialization(); } $._initialized = 1; if (isTopLevelCall) { $._initializing = true; } _; if (isTopLevelCall) { $._initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * A reinitializer may be used after the original initialization step. This is essential to configure modules that * are added through upgrades and that require initialization. * * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` * cannot be nested. If one is invoked in the context of another, execution will revert. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. * * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint64 version) { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing || $._initialized >= version) { revert InvalidInitialization(); } $._initialized = version; $._initializing = true; _; $._initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { _checkInitializing(); _; } /** * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}. */ function _checkInitializing() internal view virtual { if (!_isInitializing()) { revert NotInitializing(); } } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. * * Emits an {Initialized} event the first time it is successfully executed. */ function _disableInitializers() internal virtual { // solhint-disable-next-line var-name-mixedcase InitializableStorage storage $ = _getInitializableStorage(); if ($._initializing) { revert InvalidInitialization(); } if ($._initialized != type(uint64).max) { $._initialized = type(uint64).max; emit Initialized(type(uint64).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint64) { return _getInitializableStorage()._initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _getInitializableStorage()._initializing; } /** * @dev Returns a pointer to the storage namespace. */ // solhint-disable-next-line var-name-mixedcase function _getInitializableStorage() private pure returns (InitializableStorage storage $) { assembly { $.slot := INITIALIZABLE_STORAGE } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (proxy/utils/UUPSUpgradeable.sol) pragma solidity ^0.8.20; import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol"; import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol"; import {Initializable} from "./Initializable.sol"; /** * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy. * * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing * `UUPSUpgradeable` with a custom implementation of upgrades. * * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism. */ abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable { /// @custom:oz-upgrades-unsafe-allow state-variable-immutable address private immutable __self = address(this); /** * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)` * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called, * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string. * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function * during an upgrade. */ string public constant UPGRADE_INTERFACE_VERSION = "5.0.0"; /** * @dev The call is from an unauthorized context. */ error UUPSUnauthorizedCallContext(); /** * @dev The storage `slot` is unsupported as a UUID. */ error UUPSUnsupportedProxiableUUID(bytes32 slot); /** * @dev Check that the execution is being performed through a delegatecall call and that the execution context is * a proxy contract with an implementation (as defined in ERC-1967) pointing to self. This should only be the case * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a * function through ERC-1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to * fail. */ modifier onlyProxy() { _checkProxy(); _; } /** * @dev Check that the execution is not being performed through a delegate call. This allows a function to be * callable on the implementing contract but not through proxies. */ modifier notDelegated() { _checkNotDelegated(); _; } function __UUPSUpgradeable_init() internal onlyInitializing { } function __UUPSUpgradeable_init_unchained() internal onlyInitializing { } /** * @dev Implementation of the ERC-1822 {proxiableUUID} function. This returns the storage slot used by the * implementation. It is used to validate the implementation's compatibility when performing an upgrade. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier. */ function proxiableUUID() external view virtual notDelegated returns (bytes32) { return ERC1967Utils.IMPLEMENTATION_SLOT; } /** * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call * encoded in `data`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. * * @custom:oz-upgrades-unsafe-allow-reachable delegatecall */ function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, data); } /** * @dev Reverts if the execution is not performed via delegatecall or the execution * context is not of a proxy with an ERC-1967 compliant implementation pointing to self. * See {_onlyProxy}. */ function _checkProxy() internal view virtual { if ( address(this) == __self || // Must be called through delegatecall ERC1967Utils.getImplementation() != __self // Must be called through an active proxy ) { revert UUPSUnauthorizedCallContext(); } } /** * @dev Reverts if the execution is performed via delegatecall. * See {notDelegated}. */ function _checkNotDelegated() internal view virtual { if (address(this) != __self) { // Must not be called through delegatecall revert UUPSUnauthorizedCallContext(); } } /** * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by * {upgradeToAndCall}. * * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. * * ```solidity * function _authorizeUpgrade(address) internal onlyOwner {} * ``` */ function _authorizeUpgrade(address newImplementation) internal virtual; /** * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call. * * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value * is expected to be the implementation slot in ERC-1967. * * Emits an {IERC1967-Upgraded} event. */ function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private { try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) { revert UUPSUnsupportedProxiableUUID(slot); } ERC1967Utils.upgradeToAndCall(newImplementation, data); } catch { // The implementation is not UUPS revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; import {Initializable} from "../proxy/utils/Initializable.sol"; /** * @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 ContextUpgradeable is Initializable { function __Context_init() internal onlyInitializing { } function __Context_init_unchained() internal onlyInitializing { } function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol) pragma solidity ^0.8.20; import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol"; import {Initializable} from "../../proxy/utils/Initializable.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC-165 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); * } * ``` */ abstract contract ERC165Upgradeable is Initializable, IERC165 { function __ERC165_init() internal onlyInitializing { } function __ERC165_init_unchained() internal onlyInitializing { } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol) pragma solidity ^0.8.20; /** * @dev External interface of AccessControl declared to support ERC-165 detection. */ interface IAccessControl { /** * @dev The `account` is missing a role. */ error AccessControlUnauthorizedAccount(address account, bytes32 neededRole); /** * @dev The caller of a function is not the expected one. * * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}. */ error AccessControlBadConfirmation(); /** * @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. */ 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. This account bears the admin role (for the granted role). * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}. */ 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 `callerConfirmation`. */ function renounceRole(bytes32 role, address callerConfirmation) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.20; /** * @dev ERC-1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822Proxiable { /** * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation * address. * * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this * function revert if invoked through a proxy. */ function proxiableUUID() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol) pragma solidity ^0.8.20; /** * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC. */ interface IERC1967 { /** * @dev Emitted when the implementation is upgraded. */ event Upgraded(address indexed implementation); /** * @dev Emitted when the admin account has changed. */ event AdminChanged(address previousAdmin, address newAdmin); /** * @dev Emitted when the beacon is changed. */ event BeaconUpgraded(address indexed beacon); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.20; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeacon { /** * @dev Must return an address that can be used as a delegate call target. * * {UpgradeableBeacon} will check that this address is a contract. */ function implementation() external view returns (address); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (proxy/ERC1967/ERC1967Utils.sol) pragma solidity ^0.8.21; import {IBeacon} from "../beacon/IBeacon.sol"; import {IERC1967} from "../../interfaces/IERC1967.sol"; import {Address} from "../../utils/Address.sol"; import {StorageSlot} from "../../utils/StorageSlot.sol"; /** * @dev This library provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] slots. */ library ERC1967Utils { /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev The `implementation` of the proxy is invalid. */ error ERC1967InvalidImplementation(address implementation); /** * @dev The `admin` of the proxy is invalid. */ error ERC1967InvalidAdmin(address admin); /** * @dev The `beacon` of the proxy is invalid. */ error ERC1967InvalidBeacon(address beacon); /** * @dev An upgrade function sees `msg.value > 0` that may be lost. */ error ERC1967NonPayable(); /** * @dev Returns the current implementation address. */ function getImplementation() internal view returns (address) { return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the ERC-1967 implementation slot. */ function _setImplementation(address newImplementation) private { if (newImplementation.code.length == 0) { revert ERC1967InvalidImplementation(newImplementation); } StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Performs implementation upgrade with additional setup call if data is nonempty. * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected * to avoid stuck value in the contract. * * Emits an {IERC1967-Upgraded} event. */ function upgradeToAndCall(address newImplementation, bytes memory data) internal { _setImplementation(newImplementation); emit IERC1967.Upgraded(newImplementation); if (data.length > 0) { Address.functionDelegateCall(newImplementation, data); } else { _checkNonPayable(); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Returns the current admin. * * TIP: To get this value clients can read directly from the storage slot shown below (specified by ERC-1967) using * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103` */ function getAdmin() internal view returns (address) { return StorageSlot.getAddressSlot(ADMIN_SLOT).value; } /** * @dev Stores a new address in the ERC-1967 admin slot. */ function _setAdmin(address newAdmin) private { if (newAdmin == address(0)) { revert ERC1967InvalidAdmin(address(0)); } StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {IERC1967-AdminChanged} event. */ function changeAdmin(address newAdmin) internal { emit IERC1967.AdminChanged(getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1. */ // solhint-disable-next-line private-vars-leading-underscore bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Returns the current beacon. */ function getBeacon() internal view returns (address) { return StorageSlot.getAddressSlot(BEACON_SLOT).value; } /** * @dev Stores a new beacon in the ERC-1967 beacon slot. */ function _setBeacon(address newBeacon) private { if (newBeacon.code.length == 0) { revert ERC1967InvalidBeacon(newBeacon); } StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon; address beaconImplementation = IBeacon(newBeacon).implementation(); if (beaconImplementation.code.length == 0) { revert ERC1967InvalidImplementation(beaconImplementation); } } /** * @dev Change the beacon and trigger a setup call if data is nonempty. * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected * to avoid stuck value in the contract. * * Emits an {IERC1967-BeaconUpgraded} event. * * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for * efficiency. */ function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal { _setBeacon(newBeacon); emit IERC1967.BeaconUpgraded(newBeacon); if (data.length > 0) { Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); } else { _checkNonPayable(); } } /** * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract * if an upgrade doesn't perform an initialization call. */ function _checkNonPayable() private { if (msg.value > 0) { revert ERC1967NonPayable(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Address.sol) pragma solidity ^0.8.20; import {Errors} from "./Errors.sol"; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @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://consensys.net/diligence/blog/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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert Errors.InsufficientBalance(address(this).balance, amount); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert Errors.FailedCall(); } } /** * @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 or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {Errors.FailedCall} error. * * 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. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @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`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert Errors.InsufficientBalance(address(this).balance, value); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case * of an unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {Errors.FailedCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}. */ function _revert(bytes memory returndata) private pure { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly ("memory-safe") { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert Errors.FailedCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol) pragma solidity ^0.8.20; /** * @dev Collection of common custom errors used in multiple contracts * * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library. * It is recommended to avoid relying on the error API for critical functionality. * * _Available since v5.1._ */ library Errors { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error InsufficientBalance(uint256 balance, uint256 needed); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedCall(); /** * @dev The deployment failed. */ error FailedDeployment(); /** * @dev A necessary precompile is missing. */ error MissingPrecompile(address); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol) pragma solidity ^0.8.20; /** * @dev Interface of the ERC-165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[ERC]. * * 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[ERC 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 (last updated v5.1.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.20; /** * @dev Library for reading and writing primitive types to specific storage slots. * * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. * This library helps with reading and writing to such slots without the need for inline assembly. * * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. * * Example usage to set ERC-1967 implementation slot: * ```solidity * contract ERC1967 { * // Define the slot. Alternatively, use the SlotDerivation library to derive the slot. * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(newImplementation.code.length > 0); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * TIP: Consider using this library along with {SlotDerivation}. */ library StorageSlot { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 value; } struct Int256Slot { int256 value; } struct StringSlot { string value; } struct BytesSlot { bytes value; } /** * @dev Returns an `AddressSlot` with member `value` located at `slot`. */ function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `Int256Slot` with member `value` located at `slot`. */ function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns a `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns an `StringSlot` representation of the string storage pointer `store`. */ function getStringSlot(string storage store) internal pure returns (StringSlot storage r) { assembly ("memory-safe") { r.slot := store.slot } } /** * @dev Returns a `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { assembly ("memory-safe") { r.slot := slot } } /** * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`. */ function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) { assembly ("memory-safe") { r.slot := store.slot } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.27; interface ISfc { function currentEpoch() external view returns (uint256); function currentSealedEpoch() external view returns (uint256); }
{ "evmVersion": "cancun", "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
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payable","name":"recipient","type":"address"}],"name":"withdrawAllFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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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.