{ "contractName": "CentralizedOracleProxy", "abi": [ { "constant": true, "inputs": [], "name": "outcome", "outputs": [ { "name": "", "type": "int256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "masterCopy", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "ipfsHash", "outputs": [ { "name": "", "type": "bytes" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "isSet", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "proxied", "type": "address" }, { "name": "_owner", "type": "address" }, { "name": "_ipfsHash", "type": "bytes" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "payable": true, "stateMutability": "payable", "type": "fallback" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "newOwner", "type": "address" } ], "name": "OwnerReplacement", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "outcome", "type": "int256" } ], "name": "OutcomeAssignment", "type": "event" } ], "metadata": 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"source": "pragma solidity ^0.5.0;\nimport \"../Oracles/Oracle.sol\";\nimport \"@gnosis.pm/util-contracts/contracts/Proxy.sol\";\n\n\ncontract CentralizedOracleData {\n\n /*\n * Events\n */\n event OwnerReplacement(address indexed newOwner);\n event OutcomeAssignment(int outcome);\n\n /*\n * Storage\n */\n address public owner;\n bytes public ipfsHash;\n bool public isSet;\n int public outcome;\n\n /*\n * Modifiers\n */\n modifier isOwner () {\n // Only owner is allowed to proceed\n require(msg.sender == owner);\n _;\n }\n}\n\ncontract CentralizedOracleProxy is Proxy, CentralizedOracleData {\n\n /// @dev Constructor sets owner address and IPFS hash\n /// @param _ipfsHash Hash identifying off chain event description\n constructor(address proxied, address _owner, bytes memory _ipfsHash)\n public\n Proxy(proxied)\n {\n // Description hash cannot be null\n require(_ipfsHash.length == 46);\n owner = _owner;\n ipfsHash = _ipfsHash;\n }\n}\n\n/// @title Centralized oracle contract - Allows the contract owner to set an outcome\n/// @author Stefan George - \ncontract CentralizedOracle is Proxied, Oracle, CentralizedOracleData {\n\n /*\n * Public functions\n */\n /// @dev Replaces owner\n /// @param newOwner New owner\n function replaceOwner(address newOwner)\n public\n isOwner\n {\n // Result is not set yet\n require(!isSet);\n owner = newOwner;\n emit OwnerReplacement(newOwner);\n }\n\n /// @dev Sets event outcome\n /// @param _outcome Event outcome\n function setOutcome(int _outcome)\n public\n isOwner\n {\n // Result is not set yet\n require(!isSet);\n isSet = true;\n outcome = _outcome;\n emit OutcomeAssignment(_outcome);\n }\n\n /// @dev Returns if winning outcome is set\n /// @return Is outcome set?\n function isOutcomeSet()\n public\n view\n returns (bool)\n {\n return isSet;\n }\n\n /// @dev Returns outcome\n /// @return Outcome\n function getOutcome()\n public\n view\n returns (int)\n {\n return outcome;\n }\n}\n", "sourcePath": "/home/alan/src/github.com/gnosis/pm-contracts/contracts/Oracles/CentralizedOracle.sol", "ast": { "absolutePath": "/home/alan/src/github.com/gnosis/pm-contracts/contracts/Oracles/CentralizedOracle.sol", "exportedSymbols": { "CentralizedOracle": [ 3815 ], "CentralizedOracleData": [ 3713 ], "CentralizedOracleProxy": [ 3746 ] }, "id": 3816, "nodeType": "SourceUnit", "nodes": [ { "id": 3683, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:14" }, { "absolutePath": "/home/alan/src/github.com/gnosis/pm-contracts/contracts/Oracles/Oracle.sol", "file": "../Oracles/Oracle.sol", "id": 3684, "nodeType": "ImportDirective", "scope": 3816, "sourceUnit": 4842, "src": "24:31:14", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@gnosis.pm/util-contracts/contracts/Proxy.sol", "file": "@gnosis.pm/util-contracts/contracts/Proxy.sol", "id": 3685, "nodeType": "ImportDirective", "scope": 3816, "sourceUnit": 6829, "src": "56:55:14", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 3713, "linearizedBaseContracts": [ 3713 ], "name": "CentralizedOracleData", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": null, "id": 3689, "name": "OwnerReplacement", "nodeType": "EventDefinition", "parameters": { "id": 3688, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3687, "indexed": true, "name": "newOwner", "nodeType": "VariableDeclaration", "scope": 3689, "src": "205:24:14", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3686, "name": "address", "nodeType": "ElementaryTypeName", "src": "205:7:14", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "204:26:14" }, "src": "182:49:14" }, { "anonymous": false, "documentation": null, "id": 3693, "name": "OutcomeAssignment", "nodeType": "EventDefinition", "parameters": { "id": 3692, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3691, "indexed": false, "name": "outcome", "nodeType": "VariableDeclaration", "scope": 3693, "src": "260:11:14", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_int256", "typeString": "int256" }, "typeName": { "id": 3690, "name": "int", "nodeType": "ElementaryTypeName", "src": "260:3:14", "typeDescriptions": { "typeIdentifier": "t_int256", "typeString": "int256" } }, "value": null, "visibility": "internal" } ], "src": "259:13:14" }, "src": "236:37:14" }, { "constant": false, "id": 3695, "name": "owner", "nodeType": "VariableDeclaration", "scope": 3713, "src": "310:20:14", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3694, "name": "address", "nodeType": "ElementaryTypeName", "src": "310:7:14", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3697, "name": "ipfsHash", "nodeType": "VariableDeclaration", "scope": 3713, "src": "336:21:14", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_storage", "typeString": "bytes" }, "typeName": { "id": 3696, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "336:5:14", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3699, "name": "isSet", "nodeType": "VariableDeclaration", "scope": 3713, "src": "363:17:14", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", 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