{ "contractName": "EVMScriptRunner", "abi": [ { "constant": true, "inputs": [], "name": "hasInitialized", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "appId", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getInitializationBlock", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "kernel", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "executor", "type": "address" }, { "indexed": false, "name": "script", "type": "bytes" }, { "indexed": false, "name": "input", "type": "bytes" }, { "indexed": false, "name": "returnData", "type": "bytes" } ], "name": "ScriptResult", "type": "event" }, { "constant": true, "inputs": [ { "name": "_script", "type": "bytes" } ], "name": "getEVMScriptExecutor", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "getEVMScriptRegistry", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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"source": "/*\n * SPDX-License-Identitifer: MIT\n */\n\npragma solidity ^0.4.24;\n\nimport \"./IEVMScriptExecutor.sol\";\nimport \"./IEVMScriptRegistry.sol\";\n\nimport \"../apps/AppStorage.sol\";\nimport \"../kernel/KernelConstants.sol\";\nimport \"../common/Initializable.sol\";\n\n\ncontract EVMScriptRunner is AppStorage, Initializable, EVMScriptRegistryConstants, KernelNamespaceConstants {\n string private constant ERROR_EXECUTOR_UNAVAILABLE = \"EVMRUN_EXECUTOR_UNAVAILABLE\";\n string private constant ERROR_EXECUTION_REVERTED = \"EVMRUN_EXECUTION_REVERTED\";\n string private constant ERROR_PROTECTED_STATE_MODIFIED = \"EVMRUN_PROTECTED_STATE_MODIFIED\";\n\n event ScriptResult(address indexed executor, bytes script, bytes input, bytes returnData);\n\n function getEVMScriptExecutor(bytes _script) public view returns (IEVMScriptExecutor) {\n return IEVMScriptExecutor(getEVMScriptRegistry().getScriptExecutor(_script));\n }\n\n function getEVMScriptRegistry() public view returns (IEVMScriptRegistry) {\n address registryAddr = kernel().getApp(KERNEL_APP_ADDR_NAMESPACE, EVMSCRIPT_REGISTRY_APP_ID);\n return IEVMScriptRegistry(registryAddr);\n }\n\n function runScript(bytes _script, bytes _input, address[] _blacklist)\n internal\n isInitialized\n protectState\n returns (bytes)\n {\n // TODO: Too much data flying around, maybe extracting spec id here is cheaper\n IEVMScriptExecutor executor = getEVMScriptExecutor(_script);\n require(address(executor) != address(0), ERROR_EXECUTOR_UNAVAILABLE);\n\n bytes4 sig = executor.execScript.selector;\n bytes memory data = abi.encodeWithSelector(sig, _script, _input, _blacklist);\n require(address(executor).delegatecall(data), ERROR_EXECUTION_REVERTED);\n\n bytes memory output = returnedDataDecoded();\n\n emit ScriptResult(address(executor), _script, _input, output);\n\n return output;\n }\n\n /**\n * @dev copies and returns last's call data. Needs to ABI decode first\n */\n function returnedDataDecoded() internal pure returns (bytes ret) {\n assembly {\n let size := returndatasize\n switch size\n case 0 {}\n default {\n ret := mload(0x40) // free mem ptr get\n mstore(0x40, add(ret, add(size, 0x20))) // free mem ptr set\n returndatacopy(ret, 0x20, sub(size, 0x20)) // copy return data\n }\n }\n return ret;\n }\n\n modifier protectState {\n address preKernel = address(kernel());\n bytes32 preAppId = appId();\n _; // exec\n require(address(kernel()) == preKernel, ERROR_PROTECTED_STATE_MODIFIED);\n require(appId() == preAppId, ERROR_PROTECTED_STATE_MODIFIED);\n }\n}\n", "sourcePath": "@aragon/os/contracts/evmscript/EVMScriptRunner.sol", "ast": { "absolutePath": "@aragon/os/contracts/evmscript/EVMScriptRunner.sol", "exportedSymbols": { "EVMScriptRunner": [ 9476 ] }, "id": 9477, "nodeType": "SourceUnit", "nodes": [ { "id": 9289, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "44:24:34" }, { "absolutePath": "@aragon/os/contracts/evmscript/IEVMScriptExecutor.sol", "file": "./IEVMScriptExecutor.sol", "id": 9290, "nodeType": "ImportDirective", "scope": 9477, "sourceUnit": 9497, "src": "70:34:34", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/evmscript/IEVMScriptRegistry.sol", "file": "./IEVMScriptRegistry.sol", "id": 9291, "nodeType": "ImportDirective", "scope": 9477, "sourceUnit": 9524, "src": "105:34:34", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/apps/AppStorage.sol", "file": "../apps/AppStorage.sol", "id": 9292, "nodeType": "ImportDirective", "scope": 9477, "sourceUnit": 8348, "src": "141:32:34", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/kernel/KernelConstants.sol", "file": "../kernel/KernelConstants.sol", "id": 9293, "nodeType": "ImportDirective", "scope": 9477, "sourceUnit": 10770, "src": "174:39:34", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/Initializable.sol", "file": "../common/Initializable.sol", "id": 9294, "nodeType": "ImportDirective", "scope": 9477, "sourceUnit": 8762, "src": "214:37:34", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 9295, "name": "AppStorage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8347, "src": "282:10:34", "typeDescriptions": { "typeIdentifier": "t_contract$_AppStorage_$8347", "typeString": "contract AppStorage" } }, "id": 9296, "nodeType": "InheritanceSpecifier", "src": "282:10:34" }, { "arguments": null, "baseName": { "contractScope": null, "id": 9297, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8761, "src": "294:13:34", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$8761", "typeString": "contract Initializable" } }, "id": 9298, "nodeType": "InheritanceSpecifier", "src": "294:13:34" }, { "arguments": null, "baseName": { "contractScope": null, "id": 9299, "name": "EVMScriptRegistryConstants", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9503, "src": "309:26:34", "typeDescriptions": { "typeIdentifier": "t_contract$_EVMScriptRegistryConstants_$9503", "typeString": "contract EVMScriptRegistryConstants" } }, "id": 9300, "nodeType": "InheritanceSpecifier", "src": "309:26:34" }, { "arguments": null, "baseName": { "contractScope": null, "id": 9301, "name": "KernelNamespaceConstants", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 10769, "src": "337:24:34", "typeDescriptions": { "typeIdentifier": "t_contract$_KernelNamespaceConstants_$10769", "typeString": "contract KernelNamespaceConstants" } }, "id": 9302, "nodeType": "InheritanceSpecifier", "src": "337:24:34" } ], "contractDependencies": [ 8347, 8761, 8869, 9503, 10769 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 9476, "linearizedBaseContracts": [ 9476, 10769, 9503, 8761, 8869, 8347 ], "name": "EVMScriptRunner", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 9305, "name": "ERROR_EXECUTOR_UNAVAILABLE", "nodeType": "VariableDeclaration", "scope": 9476, "src": "368:82:34", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 9303, "name": "string", "nodeType": "ElementaryTypeName", "src": "368:6:34", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "45564d52554e5f4558454355544f525f554e415641494c41424c45", "id": 9304, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "421:29:34", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_8eaa9277b7a571cc4e32be0346d713d2afa465c007646deacfabeba4f629e0be", "typeString": "literal_string \"EVMRUN_EXECUTOR_UNAVAILABLE\"" }, "value": "EVMRUN_EXECUTOR_UNAVAILABLE" }, "visibility": "private" }, { "constant": true, "id": 9308, "name": "ERROR_EXECUTION_REVERTED", "nodeType": "VariableDeclaration", "scope": 9476, "src": "456:78:34", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 9306, "name": "string", "nodeType": "ElementaryTypeName", "src": "456:6:34", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "45564d52554e5f455845435554494f4e5f5245564552544544", "id": 9307, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "507:27:34", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_fa47b3abdfd7922e724eeccfd2f5931b98b6762d9ec2f983ed42fa5e06877fe3", "typeString": "literal_string \"EVMRUN_EXECUTION_REVERTED\"" }, "value": "EVMRUN_EXECUTION_REVERTED" }, "visibility": "private" }, { "constant": true, "id": 9311, "name": "ERROR_PROTECTED_STATE_MODIFIED", "nodeType": "VariableDeclaration", "scope": 9476, "src": "540:90:34", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 9309, "name": "string", "nodeType": "ElementaryTypeName", "src": "540:6:34", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "45564d52554e5f50524f5445435445445f53544154455f4d4f444946494544", "id": 9310, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "597:33:34", "subdenomination": null, "typeDescriptions": { "typeIdentifier": 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