safe-react/safe-contracts/build/contracts/StateChannelModule.json

{
  "contractName": "StateChannelModule",
  "abi": [
    {
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      "inputs": [],
      "name": "manager",
      "outputs": [
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          "type": "address"
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      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
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      "inputs": [
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          "type": "address"
        }
      ],
      "name": "changeMasterCopy",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "NAME",
      "outputs": [
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          "name": "",
          "type": "string"
        }
      ],
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      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "",
          "type": "bytes32"
        }
      ],
      "name": "isExecuted",
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          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "VERSION",
      "outputs": [
        {
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          "type": "string"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
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      "name": "setup",
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      "type": "function"
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    {
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          "type": "address"
        },
        {
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        },
        {
          "name": "data",
          "type": "bytes"
        },
        {
          "name": "operation",
          "type": "uint8"
        },
        {
          "name": "nonce",
          "type": "uint256"
        },
        {
          "name": "v",
          "type": "uint8[]"
        },
        {
          "name": "r",
          "type": "bytes32[]"
        },
        {
          "name": "s",
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      ],
      "name": "execTransaction",
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      "stateMutability": "nonpayable",
      "type": "function"
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    {
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        {
          "name": "to",
          "type": "address"
        },
        {
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          "type": "uint256"
        },
        {
          "name": "data",
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        },
        {
          "name": "operation",
          "type": "uint8"
        },
        {
          "name": "nonce",
          "type": "uint256"
        }
      ],
      "name": "getTransactionHash",
      "outputs": [
        {
          "name": "",
          "type": "bytes32"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    }
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  "source": "pragma solidity 0.4.23;\nimport \"../Module.sol\";\nimport \"../OwnerManager.sol\";\n\n\n/// @title Gnosis Safe State Module - A module that allows interaction with statechannels.\n/// @author Stefan George - <stefan@gnosis.pm>\n/// @author Richard Meissner - <richard@gnosis.pm>\ncontract StateChannelModule is Module {\n\n    string public constant NAME = \"State Channel Module\";\n    string public constant VERSION = \"0.0.1\";\n\n    // isExecuted mapping allows to check if a transaction (by hash) was already executed.\n    mapping (bytes32 => bool) public isExecuted;\n\n    /// @dev Setup function sets manager\n    function setup()\n        public\n    {\n        setManager();\n    }\n\n    /// @dev Allows to execute a Safe transaction confirmed by required number of owners.\n    /// @param to Destination address of Safe transaction.\n    /// @param value Ether value of Safe transaction.\n    /// @param data Data payload of Safe transaction.\n    /// @param operation Operation type of Safe transaction.\n    /// @param nonce Nonce used for this Safe transaction.\n    /// @param v Array of signature V values sorted by owner addresses.\n    /// @param r Array of signature R values sorted by owner addresses.\n    /// @param s Array of signature S values sorted by owner addresses.\n    function execTransaction(\n        address to, \n        uint256 value, \n        bytes data, \n        Enum.Operation operation, \n        uint256 nonce,\n        uint8[] v, \n        bytes32[] r, \n        bytes32[] s\n    )\n        public\n    {\n        bytes32 transactionHash = getTransactionHash(to, value, data, operation, nonce);\n        require(!isExecuted[transactionHash]);\n        checkHash(transactionHash, v, r, s);\n        // Mark as executed and execute transaction.\n        isExecuted[transactionHash] = true;\n        require(manager.execTransactionFromModule(to, value, data, operation));\n    }\n\n    function checkHash(bytes32 transactionHash, uint8[] v, bytes32[] r, bytes32[] s)\n        internal\n        view\n    {\n        // There cannot be an owner with address 0.\n        address lastOwner = address(0);\n        address currentOwner;\n        uint256 i;\n        uint8 threshold = OwnerManager(manager).getThreshold();\n        // Validate threshold is reached.\n        for (i = 0; i < threshold; i++) {\n            currentOwner = ecrecover(transactionHash, v[i], r[i], s[i]);\n            require(OwnerManager(manager).isOwner(currentOwner));\n            require(currentOwner > lastOwner);\n            lastOwner = currentOwner;\n        }\n    }\n\n    /// @dev Returns hash to be signed by owners.\n    /// @param to Destination address.\n    /// @param value Ether value.\n    /// @param data Data payload.\n    /// @param operation Operation type.\n    /// @param nonce Transaction nonce.\n    /// @return Transaction hash.\n    function getTransactionHash(\n        address to, \n        uint256 value, \n        bytes data, \n        Enum.Operation operation, \n        uint256 nonce\n    )\n        public\n        view\n        returns (bytes32)\n    {\n        return keccak256(byte(0x19), byte(0), this, to, value, data, operation, nonce);\n    }\n}\n",
  "sourcePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/modules/StateChannelModule.sol",
  "ast": {
    "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/modules/StateChannelModule.sol",
    "exportedSymbols": {
      "StateChannelModule": [
        2234
      ]
    },
    "id": 2235,
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 2037,
        "literals": [
          "solidity",
          "0.4",
          ".23"
        ],
        "nodeType": "PragmaDirective",
        "src": "0:23:13"
      },
      {
        "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/Module.sol",
        "file": "../Module.sol",
        "id": 2038,
        "nodeType": "ImportDirective",
        "scope": 2235,
        "sourceUnit": 622,
        "src": "24:23:13",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/OwnerManager.sol",
        "file": "../OwnerManager.sol",
        "id": 2039,
        "nodeType": "ImportDirective",
        "scope": 2235,
        "sourceUnit": 1344,
        "src": "48:29:13",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "baseContracts": [
          {
            "arguments": null,
            "baseName": {
              "contractScope": null,
              "id": 2040,
              "name": "Module",
              "nodeType": "UserDefinedTypeName",
              "referencedDeclaration": 621,
              "src": "300:6:13",
              "typeDescriptions": {
                "typeIdentifier": "t_contract$_Module_$621",
                "typeString": "contract Module"
              }
            },
            "id": 2041,
            "nodeType": "InheritanceSpecifier",
            "src": "300:6:13"
          }
        ],
        "contractDependencies": [
          580,
          621,
          1359
        ],
        "contractKind": "contract",
        "documentation": "@title Gnosis Safe State Module - A module that allows interaction with statechannels.\n @author Stefan George - <stefan@gnosis.pm>\n @author Richard Meissner - <richard@gnosis.pm>",
        "fullyImplemented": true,
        "id": 2234,
        "linearizedBaseContracts": [
          2234,
          621,
          580,
          1359
        ],
        "name": "StateChannelModule",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "constant": true,
            "id": 2044,
            "name": "NAME",
            "nodeType": "VariableDeclaration",
            "scope": 2234,
            "src": "314:52:13",
            "stateVariable": true,
            "storageLocation": "default",
            "typeDescriptions": {
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