{ "contractName": "FIFSRegistrar", "abi": [ { "inputs": [ { "name": "ensAddr", "type": "address" }, { "name": "node", "type": "bytes32" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "constant": false, "inputs": [ { "name": "subnode", "type": "bytes32" }, { "name": "owner", "type": "address" } ], "name": "register", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "bytecode": 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\"@aragon/os/contracts/lib/ens/AbstractENS.sol\";\n\n/**\n * A registrar that allocates subdomains to the first person to claim them.\n */\ncontract FIFSRegistrar {\n AbstractENS ens;\n bytes32 rootNode;\n\n modifier only_owner(bytes32 subnode) {\n var node = sha3(rootNode, subnode);\n var currentOwner = ens.owner(node);\n\n if (currentOwner != 0 && currentOwner != msg.sender) throw;\n\n _;\n }\n\n /**\n * Constructor.\n * @param ensAddr The address of the ENS registry.\n * @param node The node that this registrar administers.\n */\n function FIFSRegistrar(AbstractENS ensAddr, bytes32 node) {\n ens = ensAddr;\n rootNode = node;\n }\n\n /**\n * Register a name, or change the owner of an existing registration.\n * @param subnode The hash of the label to register.\n * @param owner The address of the new owner.\n */\n function register(bytes32 subnode, address owner) only_owner(subnode) {\n ens.setSubnodeOwner(rootNode, subnode, owner);\n }\n}\n", "sourcePath": 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