{ "contractName": "MultiOracle", "abi": [ { "constant": false, "inputs": [], "name": "renounceOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "isOwner", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "_id", "type": "bytes32" }, { "indexed": false, "name": "_result", "type": "bytes" }, { "indexed": false, "name": "_sender", "type": "address" } ], "name": "ResultSet", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "previousOwner", "type": "address" } ], "name": "OwnershipRenounced", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "previousOwner", "type": "address" }, { "indexed": true, "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "constant": false, "inputs": [ { "name": "_sender", "type": "address" } ], "name": "initialize", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "id", "type": "bytes32" }, { "name": "result", "type": "bytes" } ], "name": "setResult", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "id", "type": "bytes32" } ], "name": "resultFor", "outputs": [ { "name": "", "type": "bytes" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "id", "type": "bytes32" } ], "name": "isResultSet", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "id", "type": "bytes32" } ], "name": "isOracleSet", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_id", "type": "bytes32" }, { "name": "_dataSource", "type": "address" } ], "name": "newOracle", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" } ], "bytecode": 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"source": "pragma solidity ^0.4.24;\n\nimport \"./IOracle.sol\";\nimport \"openzeppelin-eth/contracts/ownership/Ownable.sol\";\nimport \"zos-lib/contracts/Initializable.sol\";\n\ncontract MultiOracle is Initializable, IOracle, Ownable {\n\n struct OracleData {\n address dataSource;\n bytes result;\n bool resultIsSet;\n }\n\n mapping (bytes32 => OracleData) results; // id to result map\n\n event ResultSet(bytes32 _id, bytes _result, address _sender);\n\n /**\n * @dev Throws if operator is not dataSource.\n * @param _operator address\n */\n modifier onlyIfValidAddress(address _operator)\n {\n require(_operator != address(0), \"Invalid dataSource.\");\n _;\n }\n\n /*\n * Public functions\n */\n\n function initialize(address _sender) public initializer {\n Ownable.initialize(_sender);\n }\n\n /**\n * @dev Sets the result of the oracle\n * @param id The id being set\n * @param result The result being set\n */\n function setResult(\n bytes32 id,\n bytes result\n )\n public\n {\n require(msg.sender == results[id].dataSource, \"The caller is not the valid data source with given id.\");\n _setResult(id, result);\n }\n\n /**\n * @dev Returns the result or reverts if it hasn't been set\n * @param id The id to identify the oracle\n * @return The result or the oracle's single event\n */\n function resultFor(bytes32 id) \n external\n view\n returns\n (bytes)\n {\n require(isResultSet(id), \"The result has not been set.\");\n return results[id].result;\n }\n\n /**\n * @dev Checks if the result has been set\n * @param id The id to identify oracle\n * @return True if the result has been set\n */\n function isResultSet(bytes32 id)\n public\n view\n returns\n (bool)\n {\n return results[id].resultIsSet;\n }\n\n /**\n * @dev Checks if the oracle has been set\n * @param id The id to identify the oracle\n * @return True if the oracle has been set\n */\n function isOracleSet(bytes32 id)\n public\n view\n returns\n (bool)\n {\n return results[id].dataSource != address(0);\n }\n\n /**\n * @dev Only owner could add a new oracle with id and dataSource information\n */\n function newOracle(\n bytes32 _id,\n address _dataSource\n )\n public\n onlyOwner\n onlyIfValidAddress(_dataSource)\n {\n require(!isOracleSet(_id), \"Oracle with the given id has already been set.\");\n require(!isResultSet(_id), \"Result has already been set.\");\n results[_id].dataSource = _dataSource;\n }\n\n /*\n * Internal functions\n */\n\n /**\n * @dev Set's the result, emits ResultSet, and calls the _resultWasSet()\n * overridable function\n * @param _result The result of the oracle's single event.\n * @param _id The id to identify single oracle.\n */\n function _setResult(\n bytes32 _id, \n bytes _result\n )\n internal\n {\n require(!isResultSet(_id), \"Result has already been set.\");\n results[_id].result = _result;\n results[_id].resultIsSet = true;\n emit ResultSet(_id, _result, msg.sender);\n _resultWasSet(_id, _result);\n }\n\n /**\n * @dev Empty function meant to be overidden in subclasses\n */\n function _resultWasSet(bytes32 /*_id*/, bytes /*_result*/)\n internal\n {\n // optional override\n }\n}\n", "sourcePath": "/Users/mfcalvanese/dev/eth/tidbit-eth/contracts/Oracles/MultiOracle.sol", "ast": { "absolutePath": "/Users/mfcalvanese/dev/eth/tidbit-eth/contracts/Oracles/MultiOracle.sol", "exportedSymbols": { "MultiOracle": [ 646 ] }, "id": 647, "nodeType": "SourceUnit", "nodes": [ { "id": 428, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:24:14" }, { "absolutePath": "/Users/mfcalvanese/dev/eth/tidbit-eth/contracts/Oracles/IOracle.sol", "file": "./IOracle.sol", "id": 429, "nodeType": "ImportDirective", "scope": 647, "sourceUnit": 274, "src": "26:23:14", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-eth/contracts/ownership/Ownable.sol", "file": "openzeppelin-eth/contracts/ownership/Ownable.sol", "id": 430, "nodeType": "ImportDirective", "scope": 647, "sourceUnit": 3186, "src": "50:58:14", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "zos-lib/contracts/Initializable.sol", "file": "zos-lib/contracts/Initializable.sol", "id": 431, "nodeType": "ImportDirective", "scope": 647, "sourceUnit": 3242, "src": "109:45:14", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 432, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 3241, "src": "180:13:14", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$3241", "typeString": "contract Initializable" } }, "id": 433, "nodeType": "InheritanceSpecifier", "src": "180:13:14" }, { "arguments": null, "baseName": { "contractScope": null, "id": 434, "name": "IOracle", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 273, "src": "195:7:14", "typeDescriptions": { "typeIdentifier": "t_contract$_IOracle_$273", "typeString": "contract IOracle" } }, "id": 435, "nodeType": "InheritanceSpecifier", "src": "195:7:14" }, { "arguments": null, "baseName": { "contractScope": null, "id": 436, "name": "Ownable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 3185, "src": "204:7:14", "typeDescriptions": { "typeIdentifier": "t_contract$_Ownable_$3185", "typeString": "contract Ownable" } }, "id": 437, "nodeType": "InheritanceSpecifier", "src": "204:7:14" } ], "contractDependencies": [ 273, 3185, 3241 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 646, "linearizedBaseContracts": [ 646, 3185, 273, 3241 ], "name": "MultiOracle", "nodeType": "ContractDefinition", "nodes": [ { "canonicalName": "MultiOracle.OracleData", "id": 444, "members": [ { "constant": false, "id": 439, "name": "dataSource", "nodeType": "VariableDeclaration", "scope": 444, "src": "241:18:14", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 438, "name": "address", "nodeType": "ElementaryTypeName", "src": "241:7:14", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 441, "name": "result", "nodeType": "VariableDeclaration", "scope": 444, "src": "265:12:14", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" }, "typeName": { "id": 440, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "265:5:14", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 443, "name": "resultIsSet", "nodeType": "VariableDeclaration", "scope": 444, "src": "283:16:14", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 442, "name": "bool", "nodeType": "ElementaryTypeName", "src": "283:4:14", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": null, "visibility": "internal" } ], "name": "OracleData", "nodeType": "StructDefinition", "scope": 646, "src": "217:87:14", "visibility": "public" }, { "constant": false, "id": 448, "name": "results", "nodeType": "VariableDeclaration", "scope": 646, "src": "308:39:14", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_struct$_OracleData_$444_storage_$", "typeString": "mapping(bytes32 => struct MultiOracle.OracleData)" }, "typeName": { "id": 447, "keyType": { "id": 445, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "317:7:14", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "308:31:14", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_struct$_OracleData_$444_storage_$", "typeString": "mapping(bytes32 => struct MultiOracle.OracleData)" }, "valueType": { "contractScope": null, "id": 446, "name": "OracleData", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 444, "src": "328:10:14", "typeDescriptions": { "typeIdentifier": "t_struct$_OracleData_$444_storage_ptr", "typeString": "struct MultiOracle.OracleData" } } }, "value": null, "visibility": "internal" }, { "anonymous": false, "documentation": null, "id": 456, "name": "ResultSet", "nodeType": "EventDefinition", "parameters": { "id": 455, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 450, "indexed": false, "name": "_id", "nodeType": "VariableDeclaration", "scope": 456, "src": "388:11:14", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 449, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "388:7:14", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" 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