{ "contractName": "PublicSubdomainRegistrar", "abi": [ { "constant": true, "inputs": [], "name": "rns", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "_rns", "type": "address" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "constant": false, "inputs": [ { "name": "node", "type": "bytes32" } ], "name": "delegate", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "node", "type": "bytes32" } ], "name": "isDelegated", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "node", "type": "bytes32" } ], "name": "transferBack", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "node", "type": "bytes32" }, { "name": "label", "type": "bytes32" } ], "name": "register", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.5.10+commit.5a6ea5b1\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"}],\"name\":\"isDelegated\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"label\",\"type\":\"bytes32\"}],\"name\":\"register\",\"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\":\"node\",\"type\":\"bytes32\"}],\"name\":\"transferBack\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"}],\"name\":\"delegate\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"name\":\"_rns\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"}],\"devdoc\":{\"methods\":{\"constructor\":{\"details\":\"Constructor\",\"params\":{\"_rns\":\"AbstractRNS RNS registry address\"}},\"delegate(bytes32)\":{\"details\":\"Delegates an owned node to this contract.\",\"params\":{\"node\":\"bytes32 The delegated RNS node.\"}},\"isDelegated(bytes32)\":{\"details\":\"Check if a node is delegated to this contract.\",\"params\":{\"node\":\"bytes32 An RNS node.\"},\"return\":\"if the node is delegated\"},\"register(bytes32,bytes32)\":{\"details\":\"Registers a subnode under a given and delegated node.\",\"params\":{\"label\":\"bytes32 The hash of the label specifying the subnode.\",\"node\":\"bytes32 The parent node.\"}},\"transferBack(bytes32)\":{\"details\":\"Transfers back a delegated node to who delegated it.\",\"params\":{\"node\":\"bytes32 Node to retrieve.\"}}},\"title\":\"PublicSubdomainRegistrar Allows anyone to create subnodes under any delegated RNS node.\"},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/PublicSubdomainRegistrar.sol\":\"PublicSubdomainRegistrar\"},\"evmVersion\":\"petersburg\",\"libraries\":{},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/PublicSubdomainRegistrar.sol\":{\"keccak256\":\"0xca304a7eafcc9625ca5177baf14e517b2117778bdae1e635723da6d7898c0799\",\"urls\":[\"bzzr://05ca9cc153eb0381382fc2f009d4a730acddfc7d68b754fae58e642f5dc632fc\",\"dweb:/ipfs/QmU2CBtcAwFoux8zzj3v8i9XHH9qamJHDkfuK13FTjahe2\"]},\"/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 PublicSubdomainRegistrar\n * Allows anyone to create subnodes under any delegated RNS node.\n */\ncontract PublicSubdomainRegistrar {\n AbstractRNS public rns;\n\n mapping (bytes32 => address) delegated;\n\n modifier onlyOwned (bytes32 node) {\n require(rns.owner(node) == address(this));\n _;\n }\n\n modifier onlyPreviousOwner (bytes32 node) {\n require(msg.sender == delegated[node]);\n _;\n }\n\n /**\n * @dev Constructor\n * @param _rns AbstractRNS RNS registry address\n */\n constructor (AbstractRNS _rns) public {\n rns = _rns;\n }\n\n /**\n * @dev Delegates an owned node to this contract.\n * @param node bytes32 The delegated RNS node.\n */\n function delegate (bytes32 node) public onlyOwned(node) {\n delegated[node] = msg.sender;\n }\n\n /**\n * @dev Check if a node is delegated to this contract.\n * @param node bytes32 An RNS node.\n * @return if the node is delegated\n */\n function isDelegated (bytes32 node) public view returns (bool) {\n return delegated[node] != address(0);\n }\n\n /**\n * @dev Transfers back a delegated node to who delegated it.\n * @param node bytes32 Node to retrieve.\n */\n function transferBack (bytes32 node) public onlyPreviousOwner(node) {\n rns.setOwner(node, delegated[node]);\n delegated[node] = address(0);\n }\n\n /**\n * @dev Registers a subnode under a given and delegated node.\n * @param node bytes32 The parent node.\n * @param label bytes32 The hash of the label specifying the subnode.\n */\n function register (bytes32 node, bytes32 label) public {\n address subnodeOwner = rns.owner(keccak256(abi.encodePacked(node, label)));\n require(subnodeOwner == address(0));\n\n rns.setSubnodeOwner(node, label, msg.sender);\n }\n}\n", "sourcePath": "/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/PublicSubdomainRegistrar.sol", "ast": { "absolutePath": "/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registrar/PublicSubdomainRegistrar.sol", "exportedSymbols": { "PublicSubdomainRegistrar": [ 362 ] }, "id": 363, "nodeType": "SourceUnit", "nodes": [ { "id": 216, "literals": [ "solidity", "^", "0.5", ".2" ], "nodeType": "PragmaDirective", "src": "0:23:1" }, { "absolutePath": "/Users/ilanolkies/code/rnsdomains/rns-artifacts/contracts/registry/AbstractRNS.sol", "file": "../registry/AbstractRNS.sol", "id": 217, "nodeType": "ImportDirective", "scope": 363, "sourceUnit": 534, "src": "25:37:1", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "@title PublicSubdomainRegistrar\nAllows anyone to create subnodes under any delegated RNS node.", "fullyImplemented": true, "id": 362, "linearizedBaseContracts": [ 362 ], "name": "PublicSubdomainRegistrar", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 219, "name": "rns", "nodeType": "VariableDeclaration", "scope": 362, "src": "213:22:1", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" }, "typeName": { "contractScope": null, "id": 218, "name": "AbstractRNS", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 533, "src": "213:11:1", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 223, "name": "delegated", "nodeType": "VariableDeclaration", "scope": 362, "src": "242:38:1", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" }, "typeName": { "id": 222, "keyType": { "id": 220, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "251:7:1", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "242:28:1", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" }, "valueType": { "id": 221, "name": "address", "nodeType": "ElementaryTypeName", "src": "262:7:1", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "value": null, "visibility": "internal" }, { "body": { "id": 239, "nodeType": "Block", "src": "321:69:1", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 235, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 230, "name": "node", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 225, "src": "349:4:1", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "expression": { "argumentTypes": null, "id": 228, "name": "rns", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 219, "src": "339:3:1", "typeDescriptions": { "typeIdentifier": "t_contract$_AbstractRNS_$533", "typeString": "contract AbstractRNS" } }, "id": 229, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "owner", "nodeType": "MemberAccess", "referencedDeclaration": 462, "src": "339:9:1", "typeDescriptions": { "typeIdentifier": "t_function_external_view$_t_bytes32_$returns$_t_address_$", "typeString": "function (bytes32) view external returns (address)" } }, "id": 231, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", 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