{ "contractName": "SubdomainRegistrar", "abi": [ { "constant": true, "inputs": [], "name": "rns", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "rootNode", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "_rns", "type": "address" }, { "name": "_rootNode", "type": "bytes32" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "constant": false, "inputs": [ { "name": "label", "type": "bytes32" } ], "name": "register", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [], "name": "transferBack", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.10+commit.5a6ea5b1\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":false,\"inputs\":[],\"name\":\"transferBack\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"rns\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"label\",\"type\":\"bytes32\"}],\"name\":\"register\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"rootNode\",\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"name\":\"_rns\",\"type\":\"address\"},{\"name\":\"_rootNode\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"}],\"devdoc\":{\"methods\":{\"constructor\":{\"details\":\"Constructor\",\"params\":{\"_rns\":\"AbstractRNS RNS registry address\",\"_rootNode\":\"An owned node. The contract emits subnodes under this node.\"}},\"register(bytes32)\":{\"details\":\"Registers a new subnode under the root node. The new node owner is the sender\",\"params\":{\"label\":\"bytes32 The label of the new subnode.\"}},\"transferBack()\":{\"details\":\"Transfers back the root node ownership to the contract's owner.\"}},\"title\":\"SubdomainRegistrar Allows anyone to create subnodes under a given and owned RNS node.\"},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/SubdomainRegistrar.sol\":\"SubdomainRegistrar\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/SubdomainRegistrar.sol\":{\"keccak256\":\"0xd67715ba460b50d30a8d2254ead598124e699d4287b8330439dfe2c108ed0631\",\"urls\":[\"bzzr://834d463768f5ca8efcfd1015647e3109bdec4821bbc24ce5fc4870ef4908e55e\",\"dweb:/ipfs/QmYgSFPRez9oDhrHbzbR2M7GeizvKTrbyStvYR8sdk5XhY\"]},\"/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registry/AbstractRNS.sol\":{\"keccak256\":\"0x93adb5d7a23e74e3b2db0df320d4a078758f5a004c21d163475d75523bd87211\",\"urls\":[\"bzzr://4de7626eef4829f16a2a28a59b8e75082a804558bda23c3e6ed6d1e85e0df68a\",\"dweb:/ipfs/QmSK5aizatR16MpXCPcjkBtJyPAYoqjCSU6iqum6rNCVSe\"]}},\"version\":1}", 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"source": "pragma solidity ^0.5.2;\n\nimport \"../registry/AbstractRNS.sol\";\n\n/**\n * @title SubdomainRegistrar\n * Allows anyone to create subnodes under a given and owned RNS node.\n */\ncontract SubdomainRegistrar {\n AbstractRNS public rns;\n bytes32 public rootNode;\n address owner;\n\n modifier onlyOwner () {\n require(msg.sender == owner);\n _;\n }\n\n /**\n * @dev Constructor\n * @param _rns AbstractRNS RNS registry address\n * @param _rootNode An owned node. The contract emits subnodes under this node.\n */\n constructor (AbstractRNS _rns, bytes32 _rootNode) public {\n rns = _rns;\n rootNode = _rootNode;\n owner = msg.sender;\n }\n\n /**\n * @dev Registers a new subnode under the root node. The new node owner is the sender\n * @param label bytes32 The label of the new subnode.\n */\n function register (bytes32 label) public {\n bytes32 node = keccak256(abi.encodePacked(rootNode, label));\n require(rns.owner(node) == address(0));\n\n rns.setSubnodeOwner(rootNode, label, msg.sender);\n }\n\n /**\n * @dev Transfers back the root node ownership to the contract's owner.\n */\n function transferBack () public onlyOwner() {\n rns.setOwner(rootNode, owner);\n }\n}\n", "sourcePath": "/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/SubdomainRegistrar.sol", "ast": { "absolutePath": "/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/SubdomainRegistrar.sol", "exportedSymbols": { "SubdomainRegistrar": [ 453 ] }, "id": 454, "nodeType": "SourceUnit", "nodes": [ { "id": 364, "literals": [ "solidity", "^", "0.5", ".2" ], "nodeType": "PragmaDirective", "src": "0:23:2" }, { "absolutePath": "/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registry/AbstractRNS.sol", "file": "../registry/AbstractRNS.sol", "id": 365, "nodeType": "ImportDirective", "scope": 454, "sourceUnit": 534, "src": "25:37:2", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title SubdomainRegistrar\nAllows anyone to create subnodes under a given and owned RNS node.", "fullyImplemented": true, "id": 453, "linearizedBaseContracts": [ 453 ], "name": "SubdomainRegistrar", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 367, "name": "rns", "nodeType": "VariableDeclaration", "scope": 453, "src": "203:22:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" }, "typeName": { "contractScope": null, "id": 366, "name": "AbstractRNS", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 533, "src": "203:11:2", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 369, "name": "rootNode", "nodeType": "VariableDeclaration", "scope": 453, "src": "229:23:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 368, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "229:7:2", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 371, "name": "owner", "nodeType": "VariableDeclaration", "scope": 453, "src": "256:13:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 370, "name": "address", "nodeType": "ElementaryTypeName", "src": "256:7:2", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "body": { "id": 381, "nodeType": "Block", "src": "296:46:2", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 377, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 374, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3109, "src": "310:3:2", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 375, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "310:10:2", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 376, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 371, "src": "324:5:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "310:19:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 373, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 3112, 3113 ], "referencedDeclaration": 3112, "src": "302:7:2", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 378, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "302:28:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 379, "nodeType": "ExpressionStatement", "src": "302:28:2" }, { "id": 380, "nodeType": "PlaceholderStatement", "src": "336:1:2" } ] }, "documentation": null, "id": 382, "name": "onlyOwner", "nodeType": "ModifierDefinition", "parameters": { "id": 372, "nodeType": "ParameterList", "parameters": [], "src": "293:2:2" }, "src": "274:68:2", "visibility": "internal" }, { "body": { "id": 402, "nodeType": "Block", "src": "569:71:2", "statements": [ { "expression": { "argumentTypes": null, "id": 391, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 389, "name": "rns", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 367, "src": "575:3:2", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 390, "name": "_rns", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 384, "src": "581:4:2", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" } }, "src": "575:10:2", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" } }, "id": 392, "nodeType": "ExpressionStatement", "src": "575:10:2" }, { "expression": { "argumentTypes": null, "id": 395, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 393, "name": "rootNode", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 369, "src": "591:8:2", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 394, "name": "_rootNode", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 386, "src": "602:9:2", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "591:20:2", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 396, "nodeType": "ExpressionStatement", "src": "591:20:2" }, { "expression": { "argumentTypes": null, "id": 400, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 397, "name": "owner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 371, "src": "617:5:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 398, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3109, "src": "625:3:2", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 399, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "sender", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "625:10:2", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "src": "617:18:2", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 401, "nodeType": "ExpressionStatement", "src": "617:18:2" } ] }, "documentation": "@dev Constructor\n@param _rns AbstractRNS RNS registry address\n@param _rootNode An owned node. 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