{ "language": "Solidity", "sources": { "src/ens/ENSController.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\npragma experimental ABIEncoderV2;\n\nimport \"../common/access/Guarded.sol\";\nimport \"../common/lifecycle/Initializable.sol\";\nimport \"../common/typedData/TypedDataContainer.sol\";\nimport \"../gateway/GatewayRecipient.sol\";\nimport \"./resolvers/ENSAddressResolver.sol\";\nimport \"./resolvers/ENSNameResolver.sol\";\nimport \"./resolvers/ENSPubKeyResolver.sol\";\nimport \"./resolvers/ENSTextResolver.sol\";\nimport \"./ENSRegistry.sol\";\n\n\n/**\n * @title ENS controller\n *\n * @notice ENS subnode registrar\n *\n * @dev The process of adding root node consists of 3 steps:\n * 1. `submitNode` - should be called from ENS node owner,\n * 2. Change ENS node owner in ENS registry to ENS controller,\n * 3. `verifyNode` - should be called from previous ENS node owner,\n *\n * To register sub node, `msg.sender` need to send valid signature from one of guardian key.\n * Once registration is complete `msg.sender` becoming both node owner and `addr` record value.\n *\n * After registration sub node cannot be replaced.\n *\n * @author Stanisław Głogowski \n */\ncontract ENSController is Guarded, Initializable, TypedDataContainer, GatewayRecipient, ENSAddressResolver, ENSNameResolver, ENSPubKeyResolver, ENSTextResolver {\n struct SubNodeRegistration {\n address account;\n bytes32 node;\n bytes32 label;\n }\n\n bytes4 private constant INTERFACE_META_ID = bytes4(keccak256(abi.encodePacked(\"supportsInterface(bytes4)\")));\n\n bytes32 private constant SUB_NODE_REGISTRATION_TYPE_HASH = keccak256(\n \"SubNodeRegistration(address account,bytes32 node,bytes32 label)\"\n );\n\n ENSRegistry public registry;\n\n mapping(bytes32 => address) public nodeOwners;\n\n // events\n\n /**\n * @dev Emitted when the address field in node resolver is changed\n * @param node node name hash\n * @param addr new address\n */\n event AddrChanged(\n bytes32 indexed node,\n address addr\n );\n\n /**\n * @dev Emitted when new node is submitted\n * @param node node name hash\n * @param owner owner address\n */\n event NodeSubmitted(\n bytes32 node,\n address owner\n );\n\n /**\n * @dev Emitted when the existing owner is verified\n * @param node node name hash\n */\n event NodeVerified(\n bytes32 node\n );\n\n /**\n * @dev Emitted when new node is released\n * @param node node name hash\n * @param owner owner address\n */\n event NodeReleased(\n bytes32 node,\n address owner\n );\n\n /**\n * @dev Emitted when ENS registry address is changed\n * @param registry registry address\n */\n event RegistryChanged(\n address registry\n );\n\n /**\n * @dev Public constructor\n */\n constructor() public Guarded() Initializable() {}\n\n // external functions\n\n /**\n * @notice Initializes `ENSController` contract\n * @param registry_ ENS registry address\n * @param gateway_ gateway address\n * @param typedDataDomainNameHash hash of a typed data domain name\n * @param typedDataDomainVersionHash hash of a typed data domain version\n * @param typedDataDomainSalt typed data salt\n */\n function initialize(\n ENSRegistry registry_,\n address[] calldata guardians_,\n address gateway_,\n bytes32 typedDataDomainNameHash,\n bytes32 typedDataDomainVersionHash,\n bytes32 typedDataDomainSalt\n )\n external\n onlyInitializer\n {\n require(\n address(registry_) != address(0),\n \"ENSController: cannot set 0x0 registry\"\n );\n\n registry = registry_;\n\n // Guarded\n _initializeGuarded(guardians_);\n\n // GatewayRecipient\n _initializeGatewayRecipient(gateway_);\n\n // TypedDataContainer\n _initializeTypedDataContainer(\n typedDataDomainNameHash,\n typedDataDomainVersionHash,\n typedDataDomainSalt\n );\n }\n\n /**\n * @notice Sets registry\n * @param registry_ registry address\n */\n function setRegistry(\n ENSRegistry registry_\n )\n external\n onlyGuardian\n {\n require(\n address(registry_) != address(0),\n \"ENSController: cannot set 0x0 registry\"\n );\n\n require(\n registry_ != registry,\n \"ENSController: registry already set\"\n );\n\n registry = registry_;\n\n emit RegistryChanged(\n address(registry)\n );\n }\n\n /**\n * @notice Submits node\n * @dev Should be called from the current ENS node owner\n * @param node node name hash\n */\n function submitNode(\n bytes32 node\n )\n external\n {\n address owner = _getContextAccount();\n\n require(\n _addr(node) == address(0),\n \"ENSController: node already exists\"\n );\n\n require(\n nodeOwners[node] == address(0),\n \"ENSController: node already submitted\"\n );\n\n require(\n registry.owner(node) == owner,\n \"ENSController: invalid ens node owner\"\n );\n\n nodeOwners[node] = owner;\n\n emit NodeSubmitted(node, owner);\n }\n\n /**\n * @notice Verifies node\n * @dev Should be called from the previous ENS node owner\n * @param node node name hash\n */\n function verifyNode(\n bytes32 node\n )\n external\n {\n address owner = _getContextAccount();\n\n require(\n _addr(node) == address(0),\n \"ENSController: node already exists\"\n );\n\n require(\n nodeOwners[node] == owner,\n \"ENSController: invalid node owner\"\n );\n\n require(\n registry.owner(node) == address(this),\n \"ENSController: invalid ens node owner\"\n );\n\n _setAddr(node, address(this));\n\n registry.setResolver(node, address(this));\n\n emit NodeVerified(node);\n }\n\n /**\n * @notice Releases node\n * @dev Should be called from the previous ENS node owner\n * @param node node name hash\n */\n function releaseNode(\n bytes32 node\n )\n external\n {\n address owner = _getContextAccount();\n\n require(\n _addr(node) == address(this),\n \"ENSController: node doesn't exist\"\n );\n\n require(\n nodeOwners[node] == owner,\n \"ENSController: invalid node owner\"\n );\n\n registry.setOwner(node, owner);\n\n delete nodeOwners[node];\n\n emit NodeReleased(node, owner);\n }\n\n /**\n * @notice Sync address\n * @param node node name hash\n */\n function syncAddr(\n bytes32 node\n )\n external\n {\n address account = _getContextAccount();\n\n require(\n account == registry.owner(node),\n \"ENSController: caller is not the node owner\"\n );\n\n require(\n registry.resolver(node) == address(this),\n \"ENSController: invalid node resolver\"\n );\n\n require(\n _addr(node) == address(0),\n \"ENSController: node already in sync\"\n );\n\n _setAddr(node, account);\n }\n\n /**\n * @notice Registers sub node\n * @param node node name hash\n * @param label label hash\n * @param guardianSignature guardian signature\n */\n function registerSubNode(\n bytes32 node,\n bytes32 label,\n bytes calldata guardianSignature\n )\n external\n {\n address account = _getContextAccount();\n\n bytes32 messageHash = _hashPrimaryTypedData(\n _hashTypedData(\n account,\n node,\n label\n )\n );\n\n require(\n _verifyGuardianSignature(messageHash, guardianSignature),\n \"ENSController: invalid guardian signature\"\n );\n\n bytes32 subNode = keccak256(\n abi.encodePacked(\n node,\n label\n )\n );\n\n require(\n _addr(node) == address(this),\n \"ENSController: invalid node\"\n );\n\n require(\n _addr(subNode) == address(0),\n \"ENSController: label already taken\"\n );\n\n registry.setSubnodeRecord(node, label, address(this), address(this), 0);\n registry.setOwner(subNode, account);\n\n _setAddr(subNode, account);\n }\n\n // external functions (pure)\n function supportsInterface(\n bytes4 interfaceID\n )\n external\n pure\n returns(bool)\n {\n return interfaceID == INTERFACE_META_ID ||\n interfaceID == INTERFACE_ADDR_ID ||\n interfaceID == INTERFACE_ADDRESS_ID ||\n interfaceID == INTERFACE_NAME_ID ||\n interfaceID == INTERFACE_PUB_KEY_ID ||\n interfaceID == INTERFACE_TEXT_ID;\n }\n\n // public functions (views)\n\n /**\n * @notice Hashes `SubNodeRegistration` typed data\n * @param subNodeRegistration struct\n * @return hash\n */\n function hashSubNodeRegistration(\n SubNodeRegistration memory subNodeRegistration\n )\n public\n view\n returns (bytes32)\n {\n return _hashPrimaryTypedData(\n _hashTypedData(\n subNodeRegistration.account,\n subNodeRegistration.node,\n subNodeRegistration.label\n )\n );\n }\n\n // internal functions (views)\n\n function _isNodeOwner(\n bytes32 node\n )\n internal\n override\n view\n returns (bool)\n {\n return registry.owner(node) == _getContextAccount();\n }\n\n // private functions (pure)\n\n function _hashTypedData(\n address account,\n bytes32 node,\n bytes32 label\n )\n private\n pure\n returns (bytes32)\n {\n return keccak256(abi.encode(\n SUB_NODE_REGISTRATION_TYPE_HASH,\n account,\n node,\n label\n ));\n }\n}\n" }, "src/common/access/Guarded.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"../libs/SignatureLib.sol\";\n\n\n/**\n * @title Guarded\n *\n * @dev Contract module which provides a guardian-type control mechanism.\n * It allows key accounts to have guardians and restricts specific methods to be accessible by guardians only.\n *\n * Each guardian account can remove other guardians\n *\n * Use `_initializeGuarded` to initialize the contract\n *\n * @author Stanisław Głogowski \n */\ncontract Guarded {\n using SignatureLib for bytes32;\n\n mapping(address => bool) private guardians;\n\n // events\n\n /**\n * @dev Emitted when a new guardian is added\n * @param sender sender address\n * @param guardian guardian address\n */\n event GuardianAdded(\n address sender,\n address guardian\n );\n\n /**\n * @dev Emitted when the existing guardian is removed\n * @param sender sender address\n * @param guardian guardian address\n */\n event GuardianRemoved(\n address sender,\n address guardian\n );\n\n // modifiers\n\n /**\n * @dev Throws if tx.origin is not a guardian account\n */\n modifier onlyGuardian() {\n require(\n // solhint-disable-next-line avoid-tx-origin\n guardians[tx.origin],\n \"Guarded: tx.origin is not the guardian\"\n );\n\n _;\n }\n\n /**\n * @dev Internal constructor\n */\n constructor() internal {}\n\n // external functions\n\n /**\n * @notice Adds a new guardian\n * @param guardian guardian address\n */\n function addGuardian(\n address guardian\n )\n external\n onlyGuardian\n {\n _addGuardian(guardian);\n }\n\n /**\n * @notice Removes the existing guardian\n * @param guardian guardian address\n */\n function removeGuardian(\n address guardian\n )\n external\n onlyGuardian\n {\n require(\n // solhint-disable-next-line avoid-tx-origin\n tx.origin != guardian,\n \"Guarded: cannot remove self\"\n );\n\n require(\n guardians[guardian],\n \"Guarded: guardian doesn't exist\"\n );\n\n guardians[guardian] = false;\n\n emit GuardianRemoved(\n // solhint-disable-next-line avoid-tx-origin\n tx.origin,\n guardian\n );\n }\n\n // external functions (views)\n\n /**\n * @notice Check if guardian exists\n * @param guardian guardian address\n * @return true when guardian exists\n */\n function isGuardian(\n address guardian\n )\n external\n view\n returns (bool)\n {\n return guardians[guardian];\n }\n\n /**\n * @notice Verifies guardian signature\n * @param messageHash message hash\n * @param signature signature\n * @return true on correct guardian signature\n */\n function verifyGuardianSignature(\n bytes32 messageHash,\n bytes calldata signature\n )\n external\n view\n returns (bool)\n {\n return _verifyGuardianSignature(\n messageHash,\n signature\n );\n }\n\n // internal functions\n\n /**\n * @notice Initializes `Guarded` contract\n * @dev If `guardians_` array is empty `tx.origin` is added as guardian account\n * @param guardians_ array of guardians addresses\n */\n function _initializeGuarded(\n address[] memory guardians_\n )\n internal\n {\n if (guardians_.length == 0) {\n // solhint-disable-next-line avoid-tx-origin\n _addGuardian(tx.origin);\n } else {\n uint guardiansLen = guardians_.length;\n for (uint i = 0; i < guardiansLen; i++) {\n _addGuardian(guardians_[i]);\n }\n }\n }\n\n\n // internal functions (views)\n\n function _verifyGuardianSignature(\n bytes32 messageHash,\n bytes memory signature\n )\n internal\n view\n returns (bool)\n {\n address guardian = messageHash.recoverAddress(signature);\n\n return guardians[guardian];\n }\n\n // private functions\n\n function _addGuardian(\n address guardian\n )\n private\n {\n require(\n guardian != address(0),\n \"Guarded: cannot add 0x0 guardian\"\n );\n\n require(\n !guardians[guardian],\n \"Guarded: guardian already exists\"\n );\n\n guardians[guardian] = true;\n\n emit GuardianAdded(\n // solhint-disable-next-line avoid-tx-origin\n tx.origin,\n guardian\n );\n }\n}\n" }, "src/common/lifecycle/Initializable.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title Initializable\n *\n * @dev Contract module which provides access control mechanism, where\n * there is the initializer account that can be granted exclusive access to\n * specific functions.\n *\n * The initializer account will be tx.origin during contract deployment and will be removed on first use.\n * Use `onlyInitializer` modifier on contract initialize process.\n *\n * @author Stanisław Głogowski \n */\ncontract Initializable {\n address private initializer;\n\n // events\n\n /**\n * @dev Emitted after `onlyInitializer`\n * @param initializer initializer address\n */\n event Initialized(\n address initializer\n );\n\n // modifiers\n\n /**\n * @dev Throws if tx.origin is not the initializer\n */\n modifier onlyInitializer() {\n require(\n // solhint-disable-next-line avoid-tx-origin\n tx.origin == initializer,\n \"Initializable: tx.origin is not the initializer\"\n );\n\n /// @dev removes initializer\n initializer = address(0);\n\n _;\n\n emit Initialized(\n // solhint-disable-next-line avoid-tx-origin\n tx.origin\n );\n }\n\n /**\n * @dev Internal constructor\n */\n constructor()\n internal\n {\n // solhint-disable-next-line avoid-tx-origin\n initializer = tx.origin;\n }\n\n // external functions (views)\n\n /**\n * @notice Check if contract is initialized\n * @return true when contract is initialized\n */\n function isInitialized()\n external\n view\n returns (bool)\n {\n return initializer == address(0);\n }\n}\n" }, "src/common/typedData/TypedDataContainer.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title Typed data container\n *\n * @dev EIP-712 is used across whole repository.\n *\n * Use `_initializeTypedDataContainer` to initialize the contract\n *\n * @author Stanisław Głogowski \n */\ncontract TypedDataContainer {\n string private constant TYPED_DATA_PREFIX = \"\\x19\\x01\";\n bytes32 private constant TYPED_DATA_DOMAIN_TYPE_HASH = keccak256(\n \"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract,bytes32 salt)\"\n );\n\n bytes32 public typedDataDomainSeparator;\n\n /**\n * @dev internal constructor\n */\n constructor() internal {}\n\n // internal functions\n\n /**\n * @notice Initializes `TypedDataContainer` contract\n * @param domainNameHash hash of a domain name\n * @param domainVersionHash hash of a domain version\n * @param domainSalt domain salt\n */\n function _initializeTypedDataContainer(\n bytes32 domainNameHash,\n bytes32 domainVersionHash,\n bytes32 domainSalt\n )\n internal\n {\n uint256 chainId;\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n chainId := chainid()\n }\n\n typedDataDomainSeparator = keccak256(abi.encode(\n TYPED_DATA_DOMAIN_TYPE_HASH,\n domainNameHash,\n domainVersionHash,\n chainId,\n address(this),\n domainSalt\n ));\n }\n\n // internal functions (views)\n\n /**\n * @notice Hashes primary typed data\n * @param dataHash hash of the data\n */\n function _hashPrimaryTypedData(\n bytes32 dataHash\n )\n internal\n view\n returns (bytes32)\n {\n return keccak256(abi.encodePacked(\n TYPED_DATA_PREFIX,\n typedDataDomainSeparator,\n dataHash\n ));\n }\n}\n" }, "src/gateway/GatewayRecipient.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"../common/libs/BytesLib.sol\";\n\n\n/**\n * @title Gateway recipient\n *\n * @notice Gateway target contract\n *\n * @author Stanisław Głogowski \n */\ncontract GatewayRecipient {\n using BytesLib for bytes;\n\n address public gateway;\n\n /**\n * @dev internal constructor\n */\n constructor() internal {}\n\n // internal functions\n\n /**\n * @notice Initializes `GatewayRecipient` contract\n * @param gateway_ `Gateway` contract address\n */\n function _initializeGatewayRecipient(\n address gateway_\n )\n internal\n {\n gateway = gateway_;\n }\n\n // internal functions (views)\n\n /**\n * @notice Gets gateway context account\n * @return context account address\n */\n function _getContextAccount()\n internal\n view\n returns (address)\n {\n return _getContextAddress(40);\n }\n\n /**\n * @notice Gets gateway context sender\n * @return context sender address\n */\n function _getContextSender()\n internal\n view\n returns (address)\n {\n return _getContextAddress(20);\n }\n\n /**\n * @notice Gets gateway context data\n * @return context data\n */\n function _getContextData()\n internal\n view\n returns (bytes calldata)\n {\n bytes calldata result;\n\n if (_isGatewaySender()) {\n result = msg.data[:msg.data.length - 40];\n } else {\n result = msg.data;\n }\n\n return result;\n }\n\n // private functions (views)\n\n function _getContextAddress(\n uint256 offset\n )\n private\n view\n returns (address)\n {\n address result = address(0);\n\n if (_isGatewaySender()) {\n uint from = msg.data.length - offset;\n result = bytes(msg.data[from:from + 20]).toAddress();\n } else {\n result = msg.sender;\n }\n\n return result;\n }\n\n function _isGatewaySender()\n private\n view\n returns (bool)\n {\n bool result;\n\n if (msg.sender == gateway) {\n require(\n msg.data.length >= 44,\n \"GatewayRecipient: invalid msg.data\"\n );\n\n result = true;\n }\n\n return result;\n }\n}\n" }, "src/ens/resolvers/ENSAddressResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"./ENSAbstractResolver.sol\";\n\n\n/**\n * @title ENS abstract address resolver\n *\n * @dev Base on https://github.com/ensdomains/resolvers/blob/f7d62ab04bfe1692a4344f6f1d31ff81315a98c3/contracts/profiles/AddrResolver.sol\n */\nabstract contract ENSAddressResolver is ENSAbstractResolver {\n bytes4 internal constant INTERFACE_ADDR_ID = bytes4(keccak256(abi.encodePacked(\"addr(bytes32)\")));\n bytes4 internal constant INTERFACE_ADDRESS_ID = bytes4(keccak256(abi.encodePacked(\"addr(bytes32,uint)\")));\n\n uint internal constant COIN_TYPE_ETH = 60;\n\n mapping(bytes32 => mapping(uint => bytes)) internal resolverAddresses;\n\n // events\n\n event AddrChanged(\n bytes32 indexed node,\n address addr\n );\n\n event AddressChanged(\n bytes32 indexed node,\n uint coinType,\n bytes newAddress\n );\n\n // external functions\n\n function setAddr(\n bytes32 node,\n address addr_\n )\n external\n onlyNodeOwner(node)\n {\n _setAddr(node, addr_);\n }\n\n function setAddr(\n bytes32 node,\n uint coinType,\n bytes memory addr_\n )\n external\n onlyNodeOwner(node)\n {\n _setAddr(node, coinType, addr_);\n }\n\n // external functions (views)\n\n function addr(\n bytes32 node\n )\n external\n view\n returns (address)\n {\n return _addr(node);\n }\n\n function addr(\n bytes32 node,\n uint coinType\n )\n external\n view\n returns (bytes memory)\n {\n return resolverAddresses[node][coinType];\n }\n\n // internal functions\n\n function _setAddr(\n bytes32 node,\n address addr_\n )\n internal\n {\n _setAddr(node, COIN_TYPE_ETH, _addressToBytes(addr_));\n }\n\n function _setAddr(\n bytes32 node,\n uint coinType,\n bytes memory addr_\n )\n internal\n {\n emit AddressChanged(node, coinType, addr_);\n\n if(coinType == COIN_TYPE_ETH) {\n emit AddrChanged(node, _bytesToAddress(addr_));\n }\n\n resolverAddresses[node][coinType] = addr_;\n }\n\n // internal functions (views)\n\n function _addr(\n bytes32 node\n )\n internal\n view\n returns (address)\n {\n address result;\n\n bytes memory addr_ = resolverAddresses[node][COIN_TYPE_ETH];\n\n if (addr_.length > 0) {\n result = _bytesToAddress(addr_);\n }\n\n return result;\n }\n\n // private function (pure)\n\n function _bytesToAddress(\n bytes memory data\n )\n private\n pure\n returns(address payable)\n {\n address payable result;\n\n require(data.length == 20);\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n result := div(mload(add(data, 32)), exp(256, 12))\n }\n\n return result;\n }\n\n function _addressToBytes(\n address addr_\n )\n private\n pure\n returns(bytes memory)\n {\n bytes memory result = new bytes(20);\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n mstore(add(result, 32), mul(addr_, exp(256, 12)))\n }\n\n return result;\n }\n}\n" }, "src/ens/resolvers/ENSNameResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"./ENSAbstractResolver.sol\";\n\n\n/**\n * @title ENS abstract name resolver\n *\n * @dev Base on https://github.com/ensdomains/resolvers/blob/f7d62ab04bfe1692a4344f6f1d31ff81315a98c3/contracts/profiles/NameResolver.sol\n */\nabstract contract ENSNameResolver is ENSAbstractResolver {\n bytes4 internal constant INTERFACE_NAME_ID = bytes4(keccak256(abi.encodePacked(\"name(bytes32)\")));\n\n mapping(bytes32 => string) internal resolverNames;\n\n // events\n\n event NameChanged(\n bytes32 indexed node,\n string name\n );\n\n // external functions\n\n function setName(\n bytes32 node,\n string calldata name\n )\n external\n onlyNodeOwner(node)\n {\n resolverNames[node] = name;\n\n emit NameChanged(node, name);\n }\n\n // external functions (views)\n\n function name(\n bytes32 node\n )\n external\n view\n returns (string memory)\n {\n return resolverNames[node];\n }\n}\n" }, "src/ens/resolvers/ENSPubKeyResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"./ENSAbstractResolver.sol\";\n\n\n/**\n * @title ENS abstract pub key resolver\n *\n * @dev Base on https://github.com/ensdomains/resolvers/blob/f7d62ab04bfe1692a4344f6f1d31ff81315a98c3/contracts/profiles/PubkeyResolver.sol\n */\nabstract contract ENSPubKeyResolver is ENSAbstractResolver {\n bytes4 internal constant INTERFACE_PUB_KEY_ID = bytes4(keccak256(abi.encodePacked(\"pubkey(bytes32)\")));\n\n struct PubKey {\n bytes32 x;\n bytes32 y;\n }\n\n mapping(bytes32 => PubKey) internal resolverPubKeys;\n\n // events\n\n event PubkeyChanged(\n bytes32 indexed node,\n bytes32 x,\n bytes32 y\n );\n\n // external functions (views)\n\n function setPubkey(\n bytes32 node,\n bytes32 x,\n bytes32 y\n )\n external\n onlyNodeOwner(node)\n {\n resolverPubKeys[node] = PubKey(x, y);\n\n emit PubkeyChanged(node, x, y);\n }\n\n // external functions (views)\n\n function pubkey(\n bytes32 node\n )\n external\n view\n returns (bytes32 x, bytes32 y)\n {\n return (resolverPubKeys[node].x, resolverPubKeys[node].y);\n }\n}\n" }, "src/ens/resolvers/ENSTextResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"./ENSAbstractResolver.sol\";\n\n\n/**\n * @title ENS abstract text resolver\n *\n * @dev Base on https://github.com/ensdomains/resolvers/blob/f7d62ab04bfe1692a4344f6f1d31ff81315a98c3/contracts/profiles/TextResolver.sol\n */\nabstract contract ENSTextResolver is ENSAbstractResolver {\n bytes4 internal constant INTERFACE_TEXT_ID = bytes4(keccak256(abi.encodePacked(\"text(bytes32,string)\")));\n\n mapping(bytes32 => mapping(string => string)) internal resolverTexts;\n\n // events\n\n event TextChanged(\n bytes32 indexed node,\n string indexed indexedKey,\n string key\n );\n\n // external functions (views)\n\n function setText(\n bytes32 node,\n string calldata key,\n string calldata value\n )\n external\n onlyNodeOwner(node)\n {\n resolverTexts[node][key] = value;\n\n emit TextChanged(node, key, key);\n }\n\n // external functions (views)\n\n function text(\n bytes32 node,\n string calldata key\n )\n external\n view\n returns (string memory)\n {\n return resolverTexts[node][key];\n }\n}\n" }, "src/ens/ENSRegistry.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title ENS registry\n *\n * @dev Base on https://github.com/ensdomains/ens/blob/ff0f41747c05f1598973b0fe7ad0d9e09565dfcd/contracts/ENSRegistry.sol\n */\ncontract ENSRegistry {\n struct Record {\n address owner;\n address resolver;\n uint64 ttl;\n }\n\n mapping (bytes32 => Record) private records;\n mapping (address => mapping(address => bool)) private operators;\n\n // events\n\n event NewOwner(\n bytes32 indexed node,\n bytes32 indexed label,\n address owner\n );\n\n event Transfer(\n bytes32 indexed node,\n address owner\n );\n\n event NewResolver(\n bytes32 indexed node,\n address resolver\n );\n\n event NewTTL(\n bytes32 indexed node,\n uint64 ttl\n );\n\n event ApprovalForAll(\n address indexed owner,\n address indexed operator,\n bool approved\n );\n\n // modifiers\n\n modifier authorised(\n bytes32 node\n )\n {\n address owner = records[node].owner;\n\n require(\n owner == msg.sender || operators[owner][msg.sender],\n \"ENSRegistry: reverted by authorised modifier\"\n );\n\n _;\n }\n\n /**\n * @dev Public constructor\n */\n constructor()\n public\n {\n // solhint-disable-next-line avoid-tx-origin\n records[0x0].owner = tx.origin;\n }\n\n // external functions\n\n function setRecord(\n bytes32 node,\n address owner_,\n address resolver_,\n uint64 ttl_\n )\n external\n {\n setOwner(node, owner_);\n\n _setResolverAndTTL(node, resolver_, ttl_);\n }\n\n function setTTL(\n bytes32 node,\n uint64 ttl_\n )\n external\n authorised(node)\n {\n records[node].ttl = ttl_;\n\n emit NewTTL(node, ttl_);\n }\n\n function setSubnodeRecord(\n bytes32 node,\n bytes32 label,\n address owner_,\n address resolver_,\n uint64 ttl_\n )\n external\n {\n bytes32 subNode = setSubnodeOwner(node, label, owner_);\n\n _setResolverAndTTL(subNode, resolver_, ttl_);\n }\n\n function setApprovalForAll(\n address operator,\n bool approved\n )\n external\n {\n operators[msg.sender][operator] = approved;\n\n emit ApprovalForAll(\n msg.sender,\n operator,\n approved\n );\n }\n\n // external functions (views)\n\n function owner(\n bytes32 node\n )\n external\n view\n returns (address)\n {\n address addr = records[node].owner;\n\n if (addr == address(this)) {\n return address(0x0);\n }\n\n return addr;\n }\n\n function resolver(\n bytes32 node\n )\n external\n view\n returns (address)\n {\n return records[node].resolver;\n }\n\n function ttl(\n bytes32 node\n )\n external\n view\n returns (uint64)\n {\n return records[node].ttl;\n }\n\n function recordExists(\n bytes32 node\n )\n external\n view\n returns (bool)\n {\n return records[node].owner != address(0x0);\n }\n\n function isApprovedForAll(\n address owner_,\n address operator\n )\n external\n view\n returns (bool)\n {\n return operators[owner_][operator];\n }\n\n // public functions\n\n function setOwner(\n bytes32 node,\n address owner_\n )\n public\n authorised(node)\n {\n records[node].owner = owner_;\n\n emit Transfer(node, owner_);\n }\n\n function setResolver(\n bytes32 node,\n address resolver_\n )\n public\n authorised(node)\n {\n records[node].resolver = resolver_;\n\n emit NewResolver(node, resolver_);\n }\n\n function setSubnodeOwner(\n bytes32 node,\n bytes32 label,\n address owner_\n )\n public\n authorised(node)\n returns(bytes32)\n {\n bytes32 subNode = keccak256(abi.encodePacked(node, label));\n\n records[subNode].owner = owner_;\n\n emit NewOwner(node, label, owner_);\n\n return subNode;\n }\n\n // private functions\n\n function _setResolverAndTTL(\n bytes32 node,\n address resolver_,\n uint64 ttl_\n )\n private\n {\n if (resolver_ != records[node].resolver) {\n records[node].resolver = resolver_;\n\n emit NewResolver(node, resolver_);\n }\n\n if (ttl_ != records[node].ttl) {\n records[node].ttl = ttl_;\n\n emit NewTTL(node, ttl_);\n }\n }\n}\n" }, "src/common/libs/SignatureLib.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title Signature library\n *\n * @dev Based on\n * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.3.0/contracts/cryptography/ECDSA.sol#L26\n * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.3.0/contracts/utils/Strings.sol#L12\n */\nlibrary SignatureLib {\n function recoverAddress(\n bytes32 messageHash,\n bytes memory signature\n )\n internal\n pure\n returns (address)\n {\n address result = address(0);\n\n if (signature.length == 65) {\n bytes32 r;\n bytes32 s;\n uint8 v;\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n r := mload(add(signature, 0x20))\n s := mload(add(signature, 0x40))\n v := byte(0, mload(add(signature, 0x60)))\n }\n\n if (v < 27) {\n v += 27;\n }\n\n if (v == 27 || v == 28) {\n result = ecrecover(messageHash, v, r, s);\n }\n }\n\n return result;\n }\n\n function toEthereumSignedMessageHash(\n bytes memory message\n )\n internal\n pure\n returns (bytes32)\n {\n return keccak256(abi.encodePacked(\n \"\\x19Ethereum Signed Message:\\n\",\n _uintToString(message.length),\n abi.encodePacked(message)\n ));\n }\n\n function _uintToString(\n uint num\n )\n private\n pure\n returns (string memory)\n {\n if (num == 0) {\n return \"0\";\n } else if (num == 32) {\n return \"32\";\n }\n\n uint i = num;\n uint j = num;\n\n uint len;\n\n while (j != 0) {\n len++;\n j /= 10;\n }\n\n bytes memory result = new bytes(len);\n\n uint k = len - 1;\n\n while (i != 0) {\n result[k--] = byte(uint8(48 + i % 10));\n i /= 10;\n }\n\n return string(result);\n }\n}\n" }, "src/common/libs/BytesLib.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title Bytes library\n *\n * @author Stanisław Głogowski \n */\nlibrary BytesLib {\n /**\n * @notice Converts bytes to address\n * @param data data\n * @return address\n */\n function toAddress(\n bytes memory data\n )\n internal\n pure\n returns (address)\n {\n address result;\n\n require(\n data.length == 20,\n \"BytesLib: invalid data length\"\n );\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n result := div(mload(add(data, 0x20)), 0x1000000000000000000000000)\n }\n\n return result;\n }\n}\n" }, "src/ens/resolvers/ENSAbstractResolver.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title ENS abstract resolver\n *\n * @dev Base on https://github.com/ensdomains/resolvers/blob/f7d62ab04bfe1692a4344f6f1d31ff81315a98c3/contracts/ResolverBase.sol\n */\nabstract contract ENSAbstractResolver {\n // modifiers\n\n modifier onlyNodeOwner(bytes32 node)\n {\n require(\n _isNodeOwner(node),\n \"ENSAbstractResolver: reverted by onlyNodeOwner modifier\"\n );\n\n _;\n }\n\n // internal functions (views)\n\n function _isNodeOwner(\n bytes32 node\n )\n internal\n virtual\n view\n returns (bool);\n}\n" }, "src/ens/ENSReverseRegistrar.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\nimport \"../common/libs/AddressLib.sol\";\nimport \"../common/lifecycle/Initializable.sol\";\nimport \"./resolvers/ENSNameResolver.sol\";\nimport \"./ENSRegistry.sol\";\n\n/**\n * @title ENS reverse registrar\n *\n * @dev Base on https://github.com/ensdomains/ens/blob/ff0f41747c05f1598973b0fe7ad0d9e09565dfcd/contracts/ReverseRegistrar.sol\n */\ncontract ENSReverseRegistrar is Initializable {\n using AddressLib for address;\n\n // namehash('addr.reverse')\n bytes32 public constant ADDR_REVERSE_NODE = 0x91d1777781884d03a6757a803996e38de2a42967fb37eeaca72729271025a9e2;\n\n ENSRegistry public registry;\n ENSNameResolver public resolver;\n\n /**\n * @dev Public constructor\n */\n constructor() public Initializable() {}\n\n // external functions\n\n /**\n * @notice Initializes `ENSReverseRegistrar` contract\n * @param registry_ ENS registry address\n * @param resolver_ ENS name resolver address\n */\n function initialize(\n ENSRegistry registry_,\n ENSNameResolver resolver_\n )\n external\n onlyInitializer\n {\n registry = registry_;\n resolver = resolver_;\n }\n\n // external functions\n\n function claim(\n address owner\n )\n public\n returns (bytes32)\n {\n return _claimWithResolver(owner, address(0));\n }\n\n function claimWithResolver(\n address owner,\n address resolver_\n )\n public\n returns (bytes32)\n {\n return _claimWithResolver(owner, resolver_);\n }\n\n function setName(\n string memory name\n )\n public\n returns (bytes32)\n {\n bytes32 node = _claimWithResolver(address(this), address(resolver));\n\n resolver.setName(node, name);\n\n return node;\n }\n\n // external functions (pure)\n\n function node(\n address addr_\n )\n external\n pure\n returns (bytes32)\n {\n return keccak256(abi.encodePacked(ADDR_REVERSE_NODE, addr_.toSha3Hash()));\n }\n\n // private functions\n\n function _claimWithResolver(\n address owner,\n address resolver_\n )\n private\n returns (bytes32)\n {\n bytes32 label = address(msg.sender).toSha3Hash();\n bytes32 node_ = keccak256(abi.encodePacked(ADDR_REVERSE_NODE, label));\n address currentOwner = registry.owner(node_);\n\n if (resolver_ != address(0x0) && resolver_ != registry.resolver(node_)) {\n if (currentOwner != address(this)) {\n registry.setSubnodeOwner(ADDR_REVERSE_NODE, label, address(this));\n currentOwner = address(this);\n }\n\n registry.setResolver(node_, resolver_);\n }\n\n // Update the owner if required\n if (currentOwner != owner) {\n registry.setSubnodeOwner(ADDR_REVERSE_NODE, label, owner);\n }\n\n return node_;\n }\n}\n" }, "src/common/libs/AddressLib.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\n\n/**\n * @title Address library\n */\nlibrary AddressLib {\n /**\n * @notice Converts address into sha3 hash\n * @param self address\n * @return sha3 hash\n */\n function toSha3Hash(\n address self\n )\n internal\n pure\n returns (bytes32)\n {\n bytes32 result;\n\n // solhint-disable-next-line no-inline-assembly\n assembly {\n let lookup := 0x3031323334353637383961626364656600000000000000000000000000000000\n\n for { let i := 40 } gt(i, 0) { } {\n i := sub(i, 1)\n mstore8(i, byte(and(self, 0xf), lookup))\n self := div(self, 0x10)\n i := sub(i, 1)\n mstore8(i, byte(and(self, 0xf), lookup))\n self := div(self, 0x10)\n }\n\n result := keccak256(0, 40)\n }\n\n return result;\n }\n}\n" }, "src/ens/ENSHelper.sol": { "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.6.12;\npragma experimental ABIEncoderV2;\n\nimport \"../common/lifecycle/Initializable.sol\";\nimport \"./resolvers/ENSAddressResolver.sol\";\nimport \"./resolvers/ENSNameResolver.sol\";\nimport \"./ENSRegistry.sol\";\n\n/**\n * @title ENS helper\n *\n * @author Stanisław Głogowski \n */\ncontract ENSHelper is Initializable {\n ENSRegistry public registry;\n\n /**\n * @dev Public constructor\n */\n constructor() public Initializable() {}\n\n // external functions\n\n /**\n * @notice Initializes `ENSLookupHelper` contract\n * @param registry_ ENS registry address\n */\n function initialize(\n ENSRegistry registry_\n )\n external\n onlyInitializer\n {\n registry = registry_;\n }\n\n // external functions (views)\n\n /**\n * @notice Gets nodes addresses\n * @param nodes array of nodes\n * @return nodes addresses\n */\n function getAddresses(\n bytes32[] memory nodes\n )\n external\n view\n returns (address[] memory)\n {\n uint nodesLen = nodes.length;\n address[] memory result = new address[](nodesLen);\n\n for (uint i = 0; i < nodesLen; i++) {\n result[i] = _getAddress(nodes[i]);\n }\n\n return result;\n }\n\n /**\n * @notice Gets nodes names\n * @param nodes array of nodes\n * @return nodes names\n */\n function getNames(\n bytes32[] memory nodes\n )\n external\n view\n returns (string[] memory)\n {\n uint nodesLen = nodes.length;\n string[] memory result = new string[](nodesLen);\n\n for (uint i = 0; i < nodesLen; i++) {\n result[i] = _getName(nodes[i]);\n }\n\n return result;\n }\n\n // private functions (views)\n\n function _getAddress(\n bytes32 node\n )\n private\n view\n returns (address)\n {\n address result;\n address resolver = registry.resolver(node);\n\n if (resolver != address(0)) {\n try ENSAddressResolver(resolver).addr(node) returns (address addr) {\n result = addr;\n } catch {\n //\n }\n }\n\n return result;\n }\n\n function _getName(\n bytes32 node\n )\n private\n view\n returns (string memory)\n {\n string memory result;\n address resolver = registry.resolver(node);\n\n if (resolver != address(0)) {\n try ENSNameResolver(resolver).name(node) returns (string memory name) {\n result = name;\n } catch {\n //\n }\n }\n\n return result;\n }\n}\n" } }, "settings": { "evmVersion": "istanbul", "metadata": { "bytecodeHash": "none", "useLiteralContent": true }, "optimizer": { "enabled": false, "runs": 200 }, "outputSelection": { "*": { "*": [ "abi", "evm.bytecode", "evm.deployedBytecode", "evm.methodIdentifiers", "metadata", "devdoc", "userdoc", "storageLayout", "evm.gasEstimates" ], "": [ "ast" ] } } } }