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Contract Name:
ZNSRegistry
Compiler Version
v0.8.18+commit.87f61d96
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.18; import { IZNSRegistry } from "./IZNSRegistry.sol"; import { AAccessControlled } from "../access/AAccessControlled.sol"; import { UUPSUpgradeable } from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; /** * @title The main reference data contract in ZNS. Also, often, the last contract * in the call chain of many operations where the most crucial Name owner data settles. * Owner of a domain in this contract also serves as the owner of the stake in `ZNSTreasury`. */ contract ZNSRegistry is AAccessControlled, UUPSUpgradeable, IZNSRegistry { // Mapping of all approved resolvers mapping(string resolverType => address resolver) internal resolvers; /** * @notice Mapping of `domainHash` to [DomainRecord](./IZNSRegistry.md#iznsregistry) struct to hold information * about each domain */ mapping(bytes32 domainHash => DomainRecord domainRecord) internal records; /** * @notice Mapping of `owner` => `operator` => `bool` to show accounts that * are or aren't allowed access to domains that `owner` has access to. * Note that operators can NOT change the owner of the domain, but can change * the resolver or resolver records. */ mapping(address owner => mapping(address operator => bool isOperator)) internal operators; /** * @notice Revert if `msg.sender` is not the owner or an operator allowed by the owner * @param domainHash the hash of a domain's name */ modifier onlyOwnerOrOperator(bytes32 domainHash) { require( isOwnerOrOperator(domainHash, msg.sender), "ZNSRegistry: Not authorized" ); _; } /** * @notice Revert if `msg.sender` is not the owner. Used for owner restricted functions. * @param domainHash the hash of a domain's name */ modifier onlyOwner(bytes32 domainHash) { require( records[domainHash].owner == msg.sender, "ZNSRegistry: Not the Name Owner" ); _; } /// @custom:oz-upgrades-unsafe-allow constructor constructor() { _disableInitializers(); } /** * @notice Initializer for the `ZNSRegistry` proxy. * @param accessController_ The address of the `ZNSAccessController` contract * @dev ! The owner of the 0x0 hash should be a multisig ideally, but EOA can be used to deploy ! * > Admin account deploying the contract will be the owner of the 0x0 hash ! */ function initialize(address accessController_) external override initializer { records[0x0].owner = msg.sender; _setAccessController(accessController_); } /** * @notice Checks if a given domain exists * @param domainHash The hash of a domain's name */ function exists(bytes32 domainHash) external view override returns (bool) { return _exists(domainHash); } /** * @notice Checks if provided address is an owner or an operator of the provided domain * @param domainHash The hash of a domain's name * @param candidate The address for which we are checking access */ function isOwnerOrOperator( bytes32 domainHash, address candidate ) public view override returns (bool) { address owner = records[domainHash].owner; return candidate == owner || operators[owner][candidate]; } /** * @notice External function that checks if provided address is an operator for the provided owner. * @param operator The address for which we are checking access * @param owner The owner of the domain(-s) in question */ function isOperatorFor( address operator, address owner ) external view override returns (bool) { return operators[owner][operator]; } /** * @notice Set an `operator` as `allowed` to give or remove permissions for ALL * domains owned by the owner `msg.sender`. * Emits an `OperatorPermissionSet` event. * @param operator The account to allow/disallow * @param allowed The true/false value to set */ function setOwnersOperator(address operator, bool allowed) external override { operators[msg.sender][operator] = allowed; emit OperatorPermissionSet(msg.sender, operator, allowed); } /** * @notice Gets a record for a domain (owner, resolver) from the internal mapping * `records`. `records` maps a domain hash to a * [DomainRecord](./IZNSRegistry.md#iznsregistry) struct. * @param domainHash the hash of a domain's name */ function getDomainRecord( bytes32 domainHash ) external view override returns (DomainRecord memory) { return records[domainHash]; } /** * @notice Gets the owner of the given domain * @param domainHash the hash of a domain's name */ function getDomainOwner( bytes32 domainHash ) external view override returns (address) { return records[domainHash].owner; } /** * @notice Gets the resolver set for the given domain. * @param domainHash the hash of a domain's name */ function getDomainResolver( bytes32 domainHash ) external view override returns (address) { return records[domainHash].resolver; } /** * @notice Creates a new domain record. Only callable by the `ZNSRootRegistrar.sol` * or an address that has REGISTRAR_ROLE. This is one of the last calls in the Register * flow that starts from `ZNSRootRegistrar.registerRootDomain()`. Calls 2 internal functions to set * the owner and resolver of the domain separately. * Can be called with `resolver` param as 0, which will exclude the call to set resolver. * Emits `DomainOwnerSet` and possibly `DomainResolverSet` events. * @param domainHash The hash of the domain name * @param owner The owner of the new domain * @param resolverType The string identifier of the resolver for the new domain, e.g. "address" */ function createDomainRecord( bytes32 domainHash, address owner, string calldata resolverType ) external override onlyRegistrar { _setDomainOwner(domainHash, owner); // We allow creation of partial domain data with no resolver address if (bytes(resolverType).length != 0) { _setDomainResolver(domainHash, resolverType); } } /** * @notice Given a resolver type, returns the address of the resolver contract for that type or 0x0 if not found * @param resolverType The resolver type as a string, e.g. "address" */ function getResolverType(string calldata resolverType) public view override returns(address) { return resolvers[resolverType]; } /** * @notice Add a new resolver type option to the mapping of types * This function can also be used to update the resolver mapping for an existing resolver * simple by using an existing key like "address" with a new address * @param resolverType The type of the resolver to add * @param resolver The address of the new resolver contract */ function addResolverType(string calldata resolverType, address resolver) public override onlyAdmin { resolvers[resolverType] = resolver; emit ResolverAdded(resolverType, resolver); } /** * @notice Delete a resolver type from the mapping of types * @param resolverType The type to be removed */ function deleteResolverType(string calldata resolverType) public override onlyAdmin { delete resolvers[resolverType]; emit ResolverDeleted(resolverType); } /** * @notice Updates an existing domain record's owner and resolver. * Note that this function can ONLY be called by the Name owner of the domain. * This is NOT used by the `ZNSRootRegistrar.sol` contract and serves as a user facing function * for the owners of existing domains to change their data on this contract. A domain * `operator` can NOT call this, since he is not allowed to change the owner. * Emits `DomainOwnerSet` and `DomainResolverSet` events. * @param domainHash The hash of the domain * @param owner The owner or an allowed operator of that domain * @param resolverType The resolver for the domain */ function updateDomainRecord( bytes32 domainHash, address owner, string calldata resolverType ) external override onlyOwner(domainHash) { // `exists` is checked implicitly through the modifier _setDomainOwner(domainHash, owner); _setDomainResolver(domainHash, resolverType); } /** * @notice Updates the owner of an existing domain. Can be called by either the Name owner * on this contract OR the `ZNSRootRegistrar.sol` contract as part of the Reclaim flow * that starts at `ZNSRootRegistrar.sol.reclaim()`. Emits an `DomainOwnerSet` event. * @param domainHash the hash of a domain's name * @param owner The account to transfer ownership to */ function updateDomainOwner( bytes32 domainHash, address owner ) external override { require( msg.sender == records[domainHash].owner || accessController.isRegistrar(msg.sender), "ZNSRegistry: Only Name Owner or Registrar allowed to call" ); _setDomainOwner(domainHash, owner); } /** * @notice Updates the resolver of an existing domain in `records`. * Can be called by either the owner of the Name or an allowed operator. * @param domainHash the hash of a domain's name * @param resolverType The new Resolver contract address */ function updateDomainResolver( bytes32 domainHash, string calldata resolverType ) external override onlyOwnerOrOperator(domainHash) { // `exists` is checked implicitly through the modifier _setDomainResolver(domainHash, resolverType); } /** * @notice Deletes a domain's record from this contract's state. * This can ONLY be called by the `ZNSRootRegistrar.sol` contract as part of the Revoke flow * or any address holding the `REGISTRAR_ROLE`. Emits a `DomainRecordDeleted` event. * @param domainHash The hash of the domain name */ function deleteRecord(bytes32 domainHash) external override onlyRegistrar { delete records[domainHash]; emit DomainRecordDeleted(domainHash); } /** * @notice Check if a domain exists. True if the owner is not `0x0` * @param domainHash the hash of a domain's name */ function _exists(bytes32 domainHash) internal view returns (bool) { return records[domainHash].owner != address(0); } /** * @notice Internal function to set a domain's owner in state `records`. * Owner can NOT be set to 0, since we use delete operation as part of the * ``deleteRecord()`` function. * Emits a `DomainOwnerSet` event. * @param domainHash the hash of a domain's name * @param owner The owner to set */ function _setDomainOwner(bytes32 domainHash, address owner) internal { require(owner != address(0), "ZNSRegistry: Owner cannot be zero address"); records[domainHash].owner = owner; emit DomainOwnerSet(domainHash, owner); } /** * @notice Internal function to set a domain's resolver in state `records`. * Resolver can be set to 0, since we allow partial domain data. Emits a `DomainResolverSet` event. * @param domainHash the hash of a domain's name * @param resolverType The resolver to set */ function _setDomainResolver( bytes32 domainHash, string calldata resolverType ) internal { address resolver = resolvers[resolverType]; records[domainHash].resolver = resolver; emit DomainResolverSet(domainHash, resolver); } /** * @notice To use UUPS proxy we override this function and revert if `msg.sender` isn't authorized * @param newImplementation The implementation contract to upgrade to */ // solhint-disable-next-line function _authorizeUpgrade(address newImplementation) internal view override { accessController.checkGovernor(msg.sender); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) pragma solidity ^0.8.0; /** * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified * proxy whose upgrades are fully controlled by the current implementation. */ interface IERC1822ProxiableUpgradeable { /** * @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 v4.9.0) (interfaces/IERC1967.sol) pragma solidity ^0.8.0; /** * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC. * * _Available since v4.8.3._ */ interface IERC1967Upgradeable { /** * @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 v4.4.1 (proxy/beacon/IBeacon.sol) pragma solidity ^0.8.0; /** * @dev This is the interface that {BeaconProxy} expects of its beacon. */ interface IBeaconUpgradeable { /** * @dev Must return an address that can be used as a delegate call target. * * {BeaconProxy} will check that this address is a contract. */ function implementation() external view returns (address); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/ERC1967/ERC1967Upgrade.sol) pragma solidity ^0.8.2; import "../beacon/IBeaconUpgradeable.sol"; import "../../interfaces/IERC1967Upgradeable.sol"; import "../../interfaces/draft-IERC1822Upgradeable.sol"; import "../../utils/AddressUpgradeable.sol"; import "../../utils/StorageSlotUpgradeable.sol"; import "../utils/Initializable.sol"; /** * @dev This abstract contract provides getters and event emitting update functions for * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. * * _Available since v4.1._ */ abstract contract ERC1967UpgradeUpgradeable is Initializable, IERC1967Upgradeable { function __ERC1967Upgrade_init() internal onlyInitializing { } function __ERC1967Upgrade_init_unchained() internal onlyInitializing { } // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; /** * @dev Storage slot with the address of the current implementation. * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; /** * @dev Returns the current implementation address. */ function _getImplementation() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value; } /** * @dev Stores a new address in the EIP1967 implementation slot. */ function _setImplementation(address newImplementation) private { require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract"); StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; } /** * @dev Perform implementation upgrade * * Emits an {Upgraded} event. */ function _upgradeTo(address newImplementation) internal { _setImplementation(newImplementation); emit Upgraded(newImplementation); } /** * @dev Perform implementation upgrade with additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal { _upgradeTo(newImplementation); if (data.length > 0 || forceCall) { AddressUpgradeable.functionDelegateCall(newImplementation, data); } } /** * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. * * Emits an {Upgraded} event. */ function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal { // Upgrades from old implementations will perform a rollback test. This test requires the new // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing // this special case will break upgrade paths from old UUPS implementation to new ones. if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) { _setImplementation(newImplementation); } else { try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) { require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); } catch { revert("ERC1967Upgrade: new implementation is not UUPS"); } _upgradeToAndCall(newImplementation, data, forceCall); } } /** * @dev Storage slot with the admin of the contract. * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is * validated in the constructor. */ bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; /** * @dev Returns the current admin. */ function _getAdmin() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value; } /** * @dev Stores a new address in the EIP1967 admin slot. */ function _setAdmin(address newAdmin) private { require(newAdmin != address(0), "ERC1967: new admin is the zero address"); StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin; } /** * @dev Changes the admin of the proxy. * * Emits an {AdminChanged} event. */ function _changeAdmin(address newAdmin) internal { emit AdminChanged(_getAdmin(), newAdmin); _setAdmin(newAdmin); } /** * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. */ bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; /** * @dev Returns the current beacon. */ function _getBeacon() internal view returns (address) { return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value; } /** * @dev Stores a new beacon in the EIP1967 beacon slot. */ function _setBeacon(address newBeacon) private { require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract"); require( AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()), "ERC1967: beacon implementation is not a contract" ); StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon; } /** * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). * * Emits a {BeaconUpgraded} event. */ function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal { _setBeacon(newBeacon); emit BeaconUpgraded(newBeacon); if (data.length > 0 || forceCall) { AddressUpgradeable.functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data); } } /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/AddressUpgradeable.sol"; /** * @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 Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 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 functions marked with `initializer` can be nested in the context of a * constructor. * * Emits an {Initialized} event. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _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 255 will prevent any future reinitialization. * * Emits an {Initialized} event. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _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() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @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 { require(!_initializing, "Initializable: contract is initializing"); if (_initialized != type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } /** * @dev Returns the highest version that has been initialized. See {reinitializer}. */ function _getInitializedVersion() internal view returns (uint8) { return _initialized; } /** * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. */ function _isInitializing() internal view returns (bool) { return _initializing; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/UUPSUpgradeable.sol) pragma solidity ^0.8.0; import "../../interfaces/draft-IERC1822Upgradeable.sol"; import "../ERC1967/ERC1967UpgradeUpgradeable.sol"; import "./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. * * _Available since v4.1._ */ abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable { function __UUPSUpgradeable_init() internal onlyInitializing { } function __UUPSUpgradeable_init_unchained() internal onlyInitializing { } /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment address private immutable __self = address(this); /** * @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 ERC1967) 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 ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to * fail. */ modifier onlyProxy() { require(address(this) != __self, "Function must be called through delegatecall"); require(_getImplementation() == __self, "Function must be called through active proxy"); _; } /** * @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() { require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall"); _; } /** * @dev Implementation of the ERC1822 {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 override notDelegated returns (bytes32) { return _IMPLEMENTATION_SLOT; } /** * @dev Upgrade the implementation of the proxy to `newImplementation`. * * Calls {_authorizeUpgrade}. * * Emits an {Upgraded} event. * * @custom:oz-upgrades-unsafe-allow-reachable delegatecall */ function upgradeTo(address newImplementation) public virtual onlyProxy { _authorizeUpgrade(newImplementation); _upgradeToAndCallUUPS(newImplementation, new bytes(0), false); } /** * @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, true); } /** * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by * {upgradeTo} and {upgradeToAndCall}. * * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. * * ```solidity * function _authorizeUpgrade(address) internal override onlyOwner {} * ``` */ function _authorizeUpgrade(address newImplementation) internal virtual; /** * @dev This empty reserved space is put in place to allow future versions to add new * variables without shifting down storage in the inheritance chain. * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps */ uint256[50] private __gap; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library AddressUpgradeable { /** * @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 * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [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://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/v0.8.0/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 functionCallWithValue(target, data, 0, "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"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or 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 { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) 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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol) // This file was procedurally generated from scripts/generate/templates/StorageSlot.js. pragma solidity ^0.8.0; /** * @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 ERC1967 implementation slot: * ```solidity * contract ERC1967 { * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; * * function _getImplementation() internal view returns (address) { * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; * } * * function _setImplementation(address newImplementation) internal { * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; * } * } * ``` * * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._ * _Available since v4.9 for `string`, `bytes`._ */ library StorageSlotUpgradeable { struct AddressSlot { address value; } struct BooleanSlot { bool value; } struct Bytes32Slot { bytes32 value; } struct Uint256Slot { uint256 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) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `BooleanSlot` with member `value` located at `slot`. */ function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. */ function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `Uint256Slot` with member `value` located at `slot`. */ function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { /// @solidity memory-safe-assembly assembly { r.slot := slot } } /** * @dev Returns an `StringSlot` with member `value` located at `slot`. */ function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) { /// @solidity memory-safe-assembly assembly { 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) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } /** * @dev Returns an `BytesSlot` with member `value` located at `slot`. */ function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) { /// @solidity memory-safe-assembly assembly { 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) { /// @solidity memory-safe-assembly assembly { r.slot := store.slot } } }
// 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 pragma solidity 0.8.18; import { IZNSAccessController } from "./IZNSAccessController.sol"; /** * @title This abstract contract outlines basic functionality, declares functions * that need to be implemented to provide a deterministic connection to `ZNSAccessController` module. * @dev In order to connect an arbitrary module to `ZNSAccessController` and it's functionality, * this contract needs to be inherited by the module. */ abstract contract AAccessControlled { /** * @notice Emitted when the access controller contract address is set. */ event AccessControllerSet(address accessController); /** * @notice Address of the ZNSAccessController contract. */ IZNSAccessController internal accessController; /** * @notice Modifier to make a function callable only when caller is an admin. * Implemented here to avoid declaring this in every single contract that uses it. */ modifier onlyAdmin() { accessController.checkAdmin(msg.sender); _; } /** * @notice Revert if `msg.sender` is not the `ZNSRootRegistrar.sol` contract * or an address holding REGISTRAR_ROLE. */ modifier onlyRegistrar { accessController.checkRegistrar(msg.sender); _; } /** * @notice Universal getter for `accessController` address on any contract that * inherits from `AAccessControlled`. */ function getAccessController() external view returns (address) { return address(accessController); } /** * @notice Universal setter for `accessController` address on any contract that * inherits from `AAccessControlled`. * Only ADMIN can call this function. * Fires `AccessControllerSet` event. * @param accessController_ The address of the new access controller */ function setAccessController(address accessController_) external onlyAdmin { _setAccessController(accessController_); } /** * @notice Internal function to set the access controller address. * @param _accessController Address of the ZNSAccessController contract. */ function _setAccessController(address _accessController) internal { require(_accessController != address(0), "AC: _accessController is 0x0 address"); accessController = IZNSAccessController(_accessController); emit AccessControllerSet(_accessController); } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.18; import { IAccessControl } from "@openzeppelin/contracts/access/IAccessControl.sol"; interface IZNSAccessController is IAccessControl { function setRoleAdmin(bytes32 role, bytes32 adminRole) external; function checkGovernor(address account) external view; function checkAdmin(address account) external view; function checkExecutor(address account) external view; function checkRegistrar(address account) external view; function isAdmin(address account) external view returns (bool); function isRegistrar(address account) external view returns (bool); function isGovernor(address account) external view returns (bool); function isExecutor(address account) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity 0.8.18; /** * @notice The `DomainRecord` struct is meant to hold relevant information * about a domain, such as its owner and resolver. * - `owner` (address): The owner of the domain (also called the owner of the Name). * - `resolver` (address): The address of the Resolver contract where this domain's source records are stored. * * In the future, there will be multiple Resolver contracts that support different types of sources. * Currently, only the `ZNSAddressResolver` is implemented. */ interface IZNSRegistry { /** * @notice Description of a domain record, pointing to the * owner address of that record as well as the address of * its resolver */ struct DomainRecord { address owner; address resolver; } /** * @notice Emits when ownership of a domain is modified in ``records`` * @param domainHash the hash of a domain's name * @param owner The new domain owner */ event DomainOwnerSet( bytes32 indexed domainHash, address indexed owner ); /** * @notice Emit when a domain's resolver is modified in ``records`` * @param domainHash the hash of a domain's name * @param resolver The new resolver address */ event DomainResolverSet( bytes32 indexed domainHash, address indexed resolver ); /** * @notice Emits when a domain record is deleted * @param domainHash The hash of a domain's name */ event DomainRecordDeleted( bytes32 indexed domainHash ); /** * @notice Emit when an owner allows/disallows permissions for an operator * @param owner Owner of the domain in question * @param operator Address that was allowed/disallowed * @param allowed Boolean status of their permission */ event OperatorPermissionSet( address indexed owner, address indexed operator, bool allowed ); /** * @notice Emitted when a new resolver type is added to ZNS * @param resolverType The name of the resolver type * @param resolver The address of the resolver contract */ event ResolverAdded( string resolverType, address resolver ); /** * @notice Emitted when a resolver is deleted from ZNS * @param resolverType The name of the resolver type */ event ResolverDeleted( string resolverType ); function initialize(address accessController) external; function exists(bytes32 domainHash) external view returns (bool); function isOwnerOrOperator( bytes32 domainHash, address candidate ) external view returns (bool); function isOperatorFor( address operator, address owner ) external view returns (bool); /** * @notice Set an `operator` as `allowed` to give or remove permissions for all * domains owned by `msg.sender` * @param operator The account to allow/disallow * @param allowed The true/false value to set */ function setOwnersOperator(address operator, bool allowed) external; function getDomainRecord( bytes32 domainHash ) external view returns (DomainRecord memory); function getDomainOwner( bytes32 domainHash ) external view returns (address); function getDomainResolver( bytes32 domainHash ) external view returns (address); function createDomainRecord( bytes32 domainHash, address owner, string calldata resolverType ) external; function getResolverType( string calldata resolverType ) external returns (address); function addResolverType( string calldata resolverType, address resolver ) external; function deleteResolverType( string calldata resolverType ) external; function updateDomainRecord( bytes32 domainHash, address owner, string calldata resolverType ) external; function updateDomainOwner(bytes32 domainHash, address owner) external; function updateDomainResolver( bytes32 domainHash, string calldata resolverType ) external; function deleteRecord(bytes32 domainHash) external; }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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IZNSRegistry.DomainRecord","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"domainHash","type":"bytes32"}],"name":"getDomainResolver","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"resolverType","type":"string"}],"name":"getResolverType","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"accessController_","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"isOperatorFor","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"domainHash","type":"bytes32"},{"internalType":"address","name":"candidate","type":"address"}],"name":"isOwnerOrOperator","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proxiableUUID","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"accessController_","type":"address"}],"name":"setAccessController","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"allowed","type":"bool"}],"name":"setOwnersOperator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"domainHash","type":"bytes32"},{"internalType":"address","name":"owner","type":"address"}],"name":"updateDomainOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"domainHash","type":"bytes32"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"string","name":"resolverType","type":"string"}],"name":"updateDomainRecord","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"domainHash","type":"bytes32"},{"internalType":"string","name":"resolverType","type":"string"}],"name":"updateDomainResolver","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"}]
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.