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0x89082827ef706155ceeea7e23866bc496177811ce361417d78064c9ea46627a811 days 8 mins ago0xf35960302a07022aba880dffaec2fdd64d5bf1c1  IN   0x96f041b96708813b1d789606926c524e785436640 Ether0.0001046648
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Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), EventStructWrongData (very low-severity), NestedArrayFunctionCallDecoder (medium-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Exact Match)
Contract Name: ACL
Compiler Text: v0.4.18+commit.9cf6e910
Optimization Enabled: Yes
Runs (Optimiser):  200



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//File: contracts/acl/IACL.sol
pragma solidity ^0.4.18;


interface IACL {
    function initialize(address permissionsCreator) public;
    function hasPermission(address who, address where, bytes32 what, bytes how) public view returns (bool);
}

//File: contracts/kernel/IKernel.sol
pragma solidity ^0.4.18;



interface IKernel {
    event SetApp(bytes32 indexed namespace, bytes32 indexed name, bytes32 indexed id, address app);

    function acl() public view returns (IACL);
    function hasPermission(address who, address where, bytes32 what, bytes how) public view returns (bool);

    function setApp(bytes32 namespace, bytes32 name, address app) public returns (bytes32 id);
    function getApp(bytes32 id) public view returns (address);
}
//File: contracts/apps/AppStorage.sol
pragma solidity ^0.4.18;




contract AppStorage {
    IKernel public kernel;
    bytes32 public appId;
    address internal pinnedCode; // used by Proxy Pinned
    uint256 internal initializationBlock; // used by Initializable
    uint256[95] private storageOffset; // forces App storage to start at after 100 slots
    uint256 private offset;
}

//File: contracts/common/Initializable.sol
pragma solidity ^0.4.18;




contract Initializable is AppStorage {
    modifier onlyInit {
        require(initializationBlock == 0);
        _;
    }

    /**
    * @return Block number in which the contract was initialized
    */
    function getInitializationBlock() public view returns (uint256) {
        return initializationBlock;
    }

    /**
    * @dev Function to be called by top level contract after initialization has finished.
    */
    function initialized() internal onlyInit {
        initializationBlock = getBlockNumber();
    }

    /**
    * @dev Returns the current block number.
    *      Using a function rather than `block.number` allows us to easily mock the block number in
    *      tests.
    */
    function getBlockNumber() internal view returns (uint256) {
        return block.number;
    }
}

//File: contracts/evmscript/IEVMScriptExecutor.sol
pragma solidity ^0.4.18;


interface IEVMScriptExecutor {
    function execScript(bytes script, bytes input, address[] blacklist) external returns (bytes);
}

//File: contracts/evmscript/IEVMScriptRegistry.sol
pragma solidity 0.4.18;


contract EVMScriptRegistryConstants {
    bytes32 constant public EVMSCRIPT_REGISTRY_APP_ID = keccak256("evmreg.aragonpm.eth");
    bytes32 constant public EVMSCRIPT_REGISTRY_APP = keccak256(keccak256("app"), EVMSCRIPT_REGISTRY_APP_ID);
}


interface IEVMScriptRegistry {
    function addScriptExecutor(address executor) external returns (uint id);
    function disableScriptExecutor(uint256 executorId) external;

    function getScriptExecutor(bytes script) public view returns (address);
}
//File: contracts/evmscript/ScriptHelpers.sol
pragma solidity 0.4.18;


library ScriptHelpers {
    // To test with JS and compare with actual encoder. Maintaining for reference.
    // t = function() { return IEVMScriptExecutor.at('0x4bcdd59d6c77774ee7317fc1095f69ec84421e49').contract.execScript.getData(...[].slice.call(arguments)).slice(10).match(/.{1,64}/g) }
    // run = function() { return ScriptHelpers.new().then(sh => { sh.abiEncode.call(...[].slice.call(arguments)).then(a => console.log(a.slice(2).match(/.{1,64}/g)) ) }) }
    // This is truly not beautiful but lets no daydream to the day solidity gets reflection features

    function abiEncode(bytes _a, bytes _b, address[] _c) public pure returns (bytes d) {
        return encode(_a, _b, _c);
    }

    function encode(bytes memory _a, bytes memory _b, address[] memory _c) internal pure returns (bytes memory d) {
        // A is positioned after the 3 position words
        uint256 aPosition = 0x60;
        uint256 bPosition = aPosition + 32 * abiLength(_a);
        uint256 cPosition = bPosition + 32 * abiLength(_b);
        uint256 length = cPosition + 32 * abiLength(_c);

        d = new bytes(length);
        assembly {
            // Store positions
            mstore(add(d, 0x20), aPosition)
            mstore(add(d, 0x40), bPosition)
            mstore(add(d, 0x60), cPosition)
        }

        // Copy memory to correct position
        copy(d, getPtr(_a), aPosition, _a.length);
        copy(d, getPtr(_b), bPosition, _b.length);
        copy(d, getPtr(_c), cPosition, _c.length * 32); // 1 word per address
    }

    function abiLength(bytes memory _a) internal pure returns (uint256) {
        // 1 for length +
        // memory words + 1 if not divisible for 32 to offset word
        return 1 + (_a.length / 32) + (_a.length % 32 > 0 ? 1 : 0);
    }

    function abiLength(address[] _a) internal pure returns (uint256) {
        // 1 for length + 1 per item
        return 1 + _a.length;
    }

    function copy(bytes _d, uint256 _src, uint256 _pos, uint256 _length) internal pure {
        uint dest;
        assembly {
            dest := add(add(_d, 0x20), _pos)
        }
        memcpy(dest, _src, _length + 32);
    }

    function getPtr(bytes memory _x) internal pure returns (uint256 ptr) {
        assembly {
            ptr := _x
        }
    }

    function getPtr(address[] memory _x) internal pure returns (uint256 ptr) {
        assembly {
            ptr := _x
        }
    }

    function getSpecId(bytes _script) internal pure returns (uint32) {
        return uint32At(_script, 0);
    }

    function uint256At(bytes _data, uint256 _location) internal pure returns (uint256 result) {
        assembly {
            result := mload(add(_data, add(0x20, _location)))
        }
    }

    function addressAt(bytes _data, uint256 _location) internal pure returns (address result) {
        uint256 word = uint256At(_data, _location);

        assembly {
            result := div(and(word, 0xffffffffffffffffffffffffffffffffffffffff000000000000000000000000),
            0x1000000000000000000000000)
        }
    }

    function uint32At(bytes _data, uint256 _location) internal pure returns (uint32 result) {
        uint256 word = uint256At(_data, _location);

        assembly {
            result := div(and(word, 0xffffffff00000000000000000000000000000000000000000000000000000000),
            0x100000000000000000000000000000000000000000000000000000000)
        }
    }

    function locationOf(bytes _data, uint256 _location) internal pure returns (uint256 result) {
        assembly {
            result := add(_data, add(0x20, _location))
        }
    }

    function toBytes(bytes4 _sig) internal pure returns (bytes) {
        bytes memory payload = new bytes(4);
        payload[0] = bytes1(_sig);
        payload[1] = bytes1(_sig << 8);
        payload[2] = bytes1(_sig << 16);
        payload[3] = bytes1(_sig << 24);
        return payload;
    }

    function memcpy(uint _dest, uint _src, uint _len) public pure {
        uint256 src = _src;
        uint256 dest = _dest;
        uint256 len = _len;

        // Copy word-length chunks while possible
        for (; len >= 32; len -= 32) {
            assembly {
                mstore(dest, mload(src))
            }
            dest += 32;
            src += 32;
        }

        // Copy remaining bytes
        uint mask = 256 ** (32 - len) - 1;
        assembly {
            let srcpart := and(mload(src), not(mask))
            let destpart := and(mload(dest), mask)
            mstore(dest, or(destpart, srcpart))
        }
    }
}
//File: contracts/evmscript/EVMScriptRunner.sol
pragma solidity ^0.4.18;








contract EVMScriptRunner is AppStorage, EVMScriptRegistryConstants {
    using ScriptHelpers for bytes;

    function runScript(bytes _script, bytes _input, address[] _blacklist) protectState internal returns (bytes output) {
        // TODO: Too much data flying around, maybe extracting spec id here is cheaper
        address executorAddr = getExecutor(_script);
        require(executorAddr != address(0));

        bytes memory calldataArgs = _script.encode(_input, _blacklist);
        bytes4 sig = IEVMScriptExecutor(0).execScript.selector;

        require(executorAddr.delegatecall(sig, calldataArgs));

        return returnedDataDecoded();
    }

    function getExecutor(bytes _script) public view returns (IEVMScriptExecutor) {
        return IEVMScriptExecutor(getExecutorRegistry().getScriptExecutor(_script));
    }

    // TODO: Internal
    function getExecutorRegistry() internal view returns (IEVMScriptRegistry) {
        address registryAddr = kernel.getApp(EVMSCRIPT_REGISTRY_APP);
        return IEVMScriptRegistry(registryAddr);
    }

    /**
    * @dev copies and returns last's call data. Needs to ABI decode first
    */
    function returnedDataDecoded() internal view returns (bytes ret) {
        assembly {
            let size := returndatasize
            switch size
            case 0 {}
            default {
                ret := mload(0x40) // free mem ptr get
                mstore(0x40, add(ret, add(size, 0x20))) // free mem ptr set
                returndatacopy(ret, 0x20, sub(size, 0x20)) // copy return data
            }
        }
        return ret;
    }

    modifier protectState {
        address preKernel = kernel;
        bytes32 preAppId = appId;
        _; // exec
        require(kernel == preKernel);
        require(appId == preAppId);
    }
}
//File: contracts/acl/ACLSyntaxSugar.sol
pragma solidity 0.4.18;


contract ACLSyntaxSugar {
    function arr() internal pure returns (uint256[] r) {}

    function arr(bytes32 _a) internal pure returns (uint256[] r) {
        return arr(uint256(_a));
    }

    function arr(bytes32 _a, bytes32 _b) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b));
    }

    function arr(address _a) internal pure returns (uint256[] r) {
        return arr(uint256(_a));
    }

    function arr(address _a, address _b) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b));
    }

    function arr(address _a, uint256 _b, uint256 _c) internal pure returns (uint256[] r) {
        return arr(uint256(_a), _b, _c);
    }

    function arr(address _a, uint256 _b) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b));
    }

    function arr(address _a, address _b, uint256 _c, uint256 _d, uint256 _e) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b), _c, _d, _e);
    }

    function arr(address _a, address _b, address _c) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b), uint256(_c));
    }

    function arr(address _a, address _b, uint256 _c) internal pure returns (uint256[] r) {
        return arr(uint256(_a), uint256(_b), uint256(_c));
    }

    function arr(uint256 _a) internal pure returns (uint256[] r) {
        r = new uint256[](1);
        r[0] = _a;
    }

    function arr(uint256 _a, uint256 _b) internal pure returns (uint256[] r) {
        r = new uint256[](2);
        r[0] = _a;
        r[1] = _b;
    }

    function arr(uint256 _a, uint256 _b, uint256 _c) internal pure returns (uint256[] r) {
        r = new uint256[](3);
        r[0] = _a;
        r[1] = _b;
        r[2] = _c;
    }

    function arr(uint256 _a, uint256 _b, uint256 _c, uint256 _d) internal pure returns (uint256[] r) {
        r = new uint256[](4);
        r[0] = _a;
        r[1] = _b;
        r[2] = _c;
        r[3] = _d;
    }

    function arr(uint256 _a, uint256 _b, uint256 _c, uint256 _d, uint256 _e) internal pure returns (uint256[] r) {
        r = new uint256[](5);
        r[0] = _a;
        r[1] = _b;
        r[2] = _c;
        r[3] = _d;
        r[4] = _e;
    }
}


contract ACLHelpers {
    function decodeParamOp(uint256 _x) internal pure returns (uint8 b) {
        return uint8(_x >> (8 * 30));
    }

    function decodeParamId(uint256 _x) internal pure returns (uint8 b) {
        return uint8(_x >> (8 * 31));
    }

    function decodeParamsList(uint256 _x) internal pure returns (uint32 a, uint32 b, uint32 c) {
        a = uint32(_x);
        b = uint32(_x >> (8 * 4));
        c = uint32(_x >> (8 * 8));
    }
}

//File: contracts/apps/AragonApp.sol
pragma solidity ^0.4.18;







contract AragonApp is AppStorage, Initializable, ACLSyntaxSugar, EVMScriptRunner {
    modifier auth(bytes32 _role) {
        require(canPerform(msg.sender, _role, new uint256[](0)));
        _;
    }

    modifier authP(bytes32 _role, uint256[] params) {
        require(canPerform(msg.sender, _role, params));
        _;
    }

    function canPerform(address _sender, bytes32 _role, uint256[] params) public view returns (bool) {
        bytes memory how; // no need to init memory as it is never used
        if (params.length > 0) {
            uint256 byteLength = params.length * 32;
            assembly {
                how := params // forced casting
                mstore(how, byteLength)
            }
        }
        return address(kernel) == 0 || kernel.hasPermission(_sender, address(this), _role, how);
    }
}

//File: contracts/acl/ACL.sol
pragma solidity 0.4.18;






interface ACLOracle {
    function canPerform(address who, address where, bytes32 what) public view returns (bool);
}


contract ACL is IACL, AragonApp, ACLHelpers {
    bytes32 constant public CREATE_PERMISSIONS_ROLE = keccak256("CREATE_PERMISSIONS_ROLE");

    // whether a certain entity has a permission
    mapping (bytes32 => bytes32) permissions; // 0 for no permission, or parameters id
    mapping (bytes32 => Param[]) public permissionParams;

    // who is the manager of a permission
    mapping (bytes32 => address) permissionManager;

    enum Op { NONE, EQ, NEQ, GT, LT, GTE, LTE, NOT, AND, OR, XOR, IF_ELSE, RET } // op types

    struct Param {
        uint8 id;
        uint8 op;
        uint240 value; // even though value is an uint240 it can store addresses
        // in the case of 32 byte hashes losing 2 bytes precision isn't a huge deal
        // op and id take less than 1 byte each so it can be kept in 1 sstore
    }

    uint8 constant BLOCK_NUMBER_PARAM_ID = 200;
    uint8 constant TIMESTAMP_PARAM_ID    = 201;
    uint8 constant SENDER_PARAM_ID       = 202;
    uint8 constant ORACLE_PARAM_ID       = 203;
    uint8 constant LOGIC_OP_PARAM_ID     = 204;
    uint8 constant PARAM_VALUE_PARAM_ID  = 205;
    // TODO: Add execution times param type?

    bytes32 constant public EMPTY_PARAM_HASH = keccak256(uint256(0));
    address constant ANY_ENTITY = address(-1);

    modifier onlyPermissionManager(address _app, bytes32 _role) {
        require(msg.sender == getPermissionManager(_app, _role));
        _;
    }

    event SetPermission(address indexed entity, address indexed app, bytes32 indexed role, bool allowed);
    event ChangePermissionManager(address indexed app, bytes32 indexed role, address indexed manager);

    /**
    * @dev Initialize can only be called once. It saves the block number in which it was initialized.
    * @notice Initializes an ACL instance and sets `_permissionsCreator` as the entity that can create other permissions
    * @param _permissionsCreator Entity that will be given permission over createPermission
    */
    function initialize(address _permissionsCreator) onlyInit public {
        initialized();
        require(msg.sender == address(kernel));

        _createPermission(_permissionsCreator, this, CREATE_PERMISSIONS_ROLE, _permissionsCreator);
    }

    /**
    * @dev Creates a permission that wasn't previously set. Access is limited by the ACL.
    *      If a created permission is removed it is possible to reset it with createPermission.
    * @notice Create a new permission granting `_entity` the ability to perform actions of role `_role` on `_app` (setting `_manager` as the permission manager)
    * @param _entity Address of the whitelisted entity that will be able to perform the role
    * @param _app Address of the app in which the role will be allowed (requires app to depend on kernel for ACL)
    * @param _role Identifier for the group of actions in app given access to perform
    * @param _manager Address of the entity that will be able to grant and revoke the permission further.
    */
    function createPermission(address _entity, address _app, bytes32 _role, address _manager) external {
        require(hasPermission(msg.sender, address(this), CREATE_PERMISSIONS_ROLE));

        _createPermission(_entity, _app, _role, _manager);
    }

    /**
    * @dev Grants permission if allowed. This requires `msg.sender` to be the permission manager
    * @notice Grants `_entity` the ability to perform actions of role `_role` on `_app`
    * @param _entity Address of the whitelisted entity that will be able to perform the role
    * @param _app Address of the app in which the role will be allowed (requires app to depend on kernel for ACL)
    * @param _role Identifier for the group of actions in app given access to perform
    */
    function grantPermission(address _entity, address _app, bytes32 _role)
        external
    {
        grantPermissionP(_entity, _app, _role, new uint256[](0));
    }

    /**
    * @dev Grants a permission with parameters if allowed. This requires `msg.sender` to be the permission manager
    * @notice Grants `_entity` the ability to perform actions of role `_role` on `_app`
    * @param _entity Address of the whitelisted entity that will be able to perform the role
    * @param _app Address of the app in which the role will be allowed (requires app to depend on kernel for ACL)
    * @param _role Identifier for the group of actions in app given access to perform
    * @param _params Permission parameters
    */
    function grantPermissionP(address _entity, address _app, bytes32 _role, uint256[] _params)
        onlyPermissionManager(_app, _role)
        public
    {
        require(!hasPermission(_entity, _app, _role));

        bytes32 paramsHash = _params.length > 0 ? _saveParams(_params) : EMPTY_PARAM_HASH;
        _setPermission(_entity, _app, _role, paramsHash);
    }

    /**
    * @dev Revokes permission if allowed. This requires `msg.sender` to be the the permission manager
    * @notice Revokes `_entity` the ability to perform actions of role `_role` on `_app`
    * @param _entity Address of the whitelisted entity to revoke access from
    * @param _app Address of the app in which the role will be revoked
    * @param _role Identifier for the group of actions in app being revoked
    */
    function revokePermission(address _entity, address _app, bytes32 _role)
        onlyPermissionManager(_app, _role)
        external
    {
        require(hasPermission(_entity, _app, _role));

        _setPermission(_entity, _app, _role, bytes32(0));
    }

    /**
    * @notice Sets `_newManager` as the manager of the permission `_role` in `_app`
    * @param _newManager Address for the new manager
    * @param _app Address of the app in which the permission management is being transferred
    * @param _role Identifier for the group of actions being transferred
    */
    function setPermissionManager(address _newManager, address _app, bytes32 _role)
        onlyPermissionManager(_app, _role)
        external
    {
        _setPermissionManager(_newManager, _app, _role);
    }

    /**
    * @dev Get manager for permission
    * @param _app Address of the app
    * @param _role Identifier for a group of actions in app
    * @return address of the manager for the permission
    */
    function getPermissionManager(address _app, bytes32 _role) public view returns (address) {
        return permissionManager[roleHash(_app, _role)];
    }

    /**
    * @dev Function called by apps to check ACL on kernel or to check permission statu
    * @param _who Sender of the original call
    * @param _where Address of the app
    * @param _where Identifier for a group of actions in app
    * @param _how Permission parameters
    * @return boolean indicating whether the ACL allows the role or not
    */
    function hasPermission(address _who, address _where, bytes32 _what, bytes memory _how) public view returns (bool) {
        uint256[] memory how;
        uint256 intsLength = _how.length / 32;
        assembly {
            how := _how // forced casting
            mstore(how, intsLength)
        }
        // _how is invalid from this point fwd
        return hasPermission(_who, _where, _what, how);
    }

    function hasPermission(address _who, address _where, bytes32 _what, uint256[] memory _how) public view returns (bool) {
        bytes32 whoParams = permissions[permissionHash(_who, _where, _what)];
        if (whoParams != bytes32(0) && evalParams(whoParams, _who, _where, _what, _how)) {
            return true;
        }

        bytes32 anyParams = permissions[permissionHash(ANY_ENTITY, _where, _what)];
        if (anyParams != bytes32(0) && evalParams(anyParams, ANY_ENTITY, _where, _what, _how)) {
            return true;
        }

        return false;
    }

    function hasPermission(address _who, address _where, bytes32 _what) public view returns (bool) {
        uint256[] memory empty = new uint256[](0);
        return hasPermission(_who, _where, _what, empty);
    }

    /**
    * @dev Internal createPermission for access inside the kernel (on instantiation)
    */
    function _createPermission(address _entity, address _app, bytes32 _role, address _manager) internal {
        // only allow permission creation (or re-creation) when there is no manager
        require(getPermissionManager(_app, _role) == address(0));

        _setPermission(_entity, _app, _role, EMPTY_PARAM_HASH);
        _setPermissionManager(_manager, _app, _role);
    }

    /**
    * @dev Internal function called to actually save the permission
    */
    function _setPermission(address _entity, address _app, bytes32 _role, bytes32 _paramsHash) internal {
        permissions[permissionHash(_entity, _app, _role)] = _paramsHash;

        SetPermission(_entity, _app, _role, _paramsHash != bytes32(0));
    }

    function _saveParams(uint256[] _encodedParams) internal returns (bytes32) {
        bytes32 paramHash = keccak256(_encodedParams);
        Param[] storage params = permissionParams[paramHash];

        if (params.length == 0) { // params not saved before
            for (uint256 i = 0; i < _encodedParams.length; i++) {
                uint256 encodedParam = _encodedParams[i];
                Param memory param = Param(decodeParamId(encodedParam), decodeParamOp(encodedParam), uint240(encodedParam));
                params.push(param);
            }
        }

        return paramHash;
    }

    function evalParams(
        bytes32 _paramsHash,
        address _who,
        address _where,
        bytes32 _what,
        uint256[] _how
    ) internal view returns (bool)
    {
        if (_paramsHash == EMPTY_PARAM_HASH) {
            return true;
        }

        return evalParam(_paramsHash, 0, _who, _where, _what, _how);
    }

    function evalParam(
        bytes32 _paramsHash,
        uint32 _paramId,
        address _who,
        address _where,
        bytes32 _what,
        uint256[] _how
    ) internal view returns (bool)
    {
        if (_paramId >= permissionParams[_paramsHash].length) {
            return false; // out of bounds
        }

        Param memory param = permissionParams[_paramsHash][_paramId];

        if (param.id == LOGIC_OP_PARAM_ID) {
            return evalLogic(param, _paramsHash, _who, _where, _what, _how);
        }

        uint256 value;
        uint256 comparedTo = uint256(param.value);

        // get value
        if (param.id == ORACLE_PARAM_ID) {
            value = ACLOracle(param.value).canPerform(_who, _where, _what) ? 1 : 0;
            comparedTo = 1;
        } else if (param.id == BLOCK_NUMBER_PARAM_ID) {
            value = blockN();
        } else if (param.id == TIMESTAMP_PARAM_ID) {
            value = time();
        } else if (param.id == SENDER_PARAM_ID) {
            value = uint256(msg.sender);
        } else if (param.id == PARAM_VALUE_PARAM_ID) {
            value = uint256(param.value);
        } else {
            if (param.id >= _how.length) {
                return false;
            }
            value = uint256(uint240(_how[param.id])); // force lost precision
        }

        if (Op(param.op) == Op.RET) {
            return uint256(value) > 0;
        }

        return compare(value, Op(param.op), comparedTo);
    }

    function evalLogic(Param _param, bytes32 _paramsHash, address _who, address _where, bytes32 _what, uint256[] _how) internal view returns (bool) {
        if (Op(_param.op) == Op.IF_ELSE) {
            var (condition, success, failure) = decodeParamsList(uint256(_param.value));
            bool result = evalParam(_paramsHash, condition, _who, _where, _what, _how);

            return evalParam(_paramsHash, result ? success : failure, _who, _where, _what, _how);
        }

        var (v1, v2,) = decodeParamsList(uint256(_param.value));
        bool r1 = evalParam(_paramsHash, v1, _who, _where, _what, _how);

        if (Op(_param.op) == Op.NOT) {
            return !r1;
        }

        if (r1 && Op(_param.op) == Op.OR) {
            return true;
        }

        if (!r1 && Op(_param.op) == Op.AND) {
            return false;
        }

        bool r2 = evalParam(_paramsHash, v2, _who, _where, _what, _how);

        if (Op(_param.op) == Op.XOR) {
            return (r1 && !r2) || (!r1 && r2);
        }

        return r2; // both or and and depend on result of r2 after checks
    }

    function compare(uint256 _a, Op _op, uint256 _b) internal pure returns (bool) {
        if (_op == Op.EQ)  return _a == _b;                              // solium-disable-line lbrace
        if (_op == Op.NEQ) return _a != _b;                              // solium-disable-line lbrace
        if (_op == Op.GT)  return _a > _b;                               // solium-disable-line lbrace
        if (_op == Op.LT)  return _a < _b;                               // solium-disable-line lbrace
        if (_op == Op.GTE) return _a >= _b;                              // solium-disable-line lbrace
        if (_op == Op.LTE) return _a <= _b;                              // solium-disable-line lbrace
        return false;
    }

    /**
    * @dev Internal function that sets management
    */
    function _setPermissionManager(address _newManager, address _app, bytes32 _role) internal {
        permissionManager[roleHash(_app, _role)] = _newManager;
        ChangePermissionManager(_app, _role, _newManager);
    }

    function roleHash(address _where, bytes32 _what) pure internal returns (bytes32) {
        return keccak256(uint256(1), _where, _what);
    }

    function permissionHash(address _who, address _where, bytes32 _what) pure internal returns (bytes32) {
        return keccak256(uint256(2), _who, _where, _what);
    }

    function time() internal view returns (uint64) { return uint64(block.timestamp); } // solium-disable-line security/no-block-members

    function blockN() internal view returns (uint256) { return block.number; }
}

    Contract ABI  
[{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"}],"name":"grantPermission","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"CREATE_PERMISSIONS_ROLE","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"EVMSCRIPT_REGISTRY_APP_ID","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"},{"name":"_params","type":"uint256[]"}],"name":"grantPermissionP","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"},{"name":"_where","type":"address"},{"name":"_what","type":"bytes32"}],"name":"hasPermission","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"},{"name":"","type":"uint256"}],"name":"permissionParams","outputs":[{"name":"id","type":"uint8"},{"name":"op","type":"uint8"},{"name":"value","type":"uint240"}],"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":"EVMSCRIPT_REGISTRY_APP","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"}],"name":"revokePermission","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_sender","type":"address"},{"name":"_role","type":"bytes32"},{"name":"params","type":"uint256[]"}],"name":"canPerform","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newManager","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"}],"name":"setPermissionManager","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"}],"name":"getPermissionManager","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_entity","type":"address"},{"name":"_app","type":"address"},{"name":"_role","type":"bytes32"},{"name":"_manager","type":"address"}],"name":"createPermission","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_permissionsCreator","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"EMPTY_PARAM_HASH","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"kernel","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"},{"name":"_where","type":"address"},{"name":"_what","type":"bytes32"},{"name":"_how","type":"uint256[]"}],"name":"hasPermission","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_script","type":"bytes"}],"name":"getExecutor","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"},{"name":"_where","type":"address"},{"name":"_what","type":"bytes32"},{"name":"_how","type":"bytes"}],"name":"hasPermission","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"entity","type":"address"},{"indexed":true,"name":"app","type":"address"},{"indexed":true,"name":"role","type":"bytes32"},{"indexed":false,"name":"allowed","type":"bool"}],"name":"SetPermission","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"app","type":"address"},{"indexed":true,"name":"role","type":"bytes32"},{"indexed":true,"name":"manager","type":"address"}],"name":"ChangePermissionManager","type":"event"}]

  Contract Creation Code Switch To Opcodes View
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   Swarm Source:
bzzr://89c09ffb3fa50aa1837c9d9b584cb81ab60623cac8c1b2d7cbf86fcdf52cb600

 

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