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Contract Name:
AppProxyUpgradeable
Compiler Version
v0.4.24+commit.e67f0147
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2019-09-06 */ // File: contracts/common/UnstructuredStorage.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; library UnstructuredStorage { function getStorageBool(bytes32 position) internal view returns (bool data) { assembly { data := sload(position) } } function getStorageAddress(bytes32 position) internal view returns (address data) { assembly { data := sload(position) } } function getStorageBytes32(bytes32 position) internal view returns (bytes32 data) { assembly { data := sload(position) } } function getStorageUint256(bytes32 position) internal view returns (uint256 data) { assembly { data := sload(position) } } function setStorageBool(bytes32 position, bool data) internal { assembly { sstore(position, data) } } function setStorageAddress(bytes32 position, address data) internal { assembly { sstore(position, data) } } function setStorageBytes32(bytes32 position, bytes32 data) internal { assembly { sstore(position, data) } } function setStorageUint256(bytes32 position, uint256 data) internal { assembly { sstore(position, data) } } } // File: contracts/acl/IACL.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; interface IACL { function initialize(address permissionsCreator) external; // TODO: this should be external // See https://github.com/ethereum/solidity/issues/4832 function hasPermission(address who, address where, bytes32 what, bytes how) public view returns (bool); } // File: contracts/common/IVaultRecoverable.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; interface IVaultRecoverable { event RecoverToVault(address indexed vault, address indexed token, uint256 amount); function transferToVault(address token) external; function allowRecoverability(address token) external view returns (bool); function getRecoveryVault() external view returns (address); } // File: contracts/kernel/IKernel.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; interface IKernelEvents { event SetApp(bytes32 indexed namespace, bytes32 indexed appId, address app); } // This should be an interface, but interfaces can't inherit yet :( contract IKernel is IKernelEvents, IVaultRecoverable { 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 appId, address app) public; function getApp(bytes32 namespace, bytes32 appId) public view returns (address); } // File: contracts/apps/AppStorage.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; contract AppStorage { using UnstructuredStorage for bytes32; /* Hardcoded constants to save gas bytes32 internal constant KERNEL_POSITION = keccak256("aragonOS.appStorage.kernel"); bytes32 internal constant APP_ID_POSITION = keccak256("aragonOS.appStorage.appId"); */ bytes32 internal constant KERNEL_POSITION = 0x4172f0f7d2289153072b0a6ca36959e0cbe2efc3afe50fc81636caa96338137b; bytes32 internal constant APP_ID_POSITION = 0xd625496217aa6a3453eecb9c3489dc5a53e6c67b444329ea2b2cbc9ff547639b; function kernel() public view returns (IKernel) { return IKernel(KERNEL_POSITION.getStorageAddress()); } function appId() public view returns (bytes32) { return APP_ID_POSITION.getStorageBytes32(); } function setKernel(IKernel _kernel) internal { KERNEL_POSITION.setStorageAddress(address(_kernel)); } function setAppId(bytes32 _appId) internal { APP_ID_POSITION.setStorageBytes32(_appId); } } // File: contracts/common/IsContract.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; contract IsContract { /* * NOTE: this should NEVER be used for authentication * (see pitfalls: https://github.com/fergarrui/ethereum-security/tree/master/contracts/extcodesize). * * This is only intended to be used as a sanity check that an address is actually a contract, * RATHER THAN an address not being a contract. */ function isContract(address _target) internal view returns (bool) { if (_target == address(0)) { return false; } uint256 size; assembly { size := extcodesize(_target) } return size > 0; } } // File: contracts/lib/misc/ERCProxy.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; contract ERCProxy { uint256 internal constant FORWARDING = 1; uint256 internal constant UPGRADEABLE = 2; function proxyType() public pure returns (uint256 proxyTypeId); function implementation() public view returns (address codeAddr); } // File: contracts/common/DelegateProxy.sol pragma solidity 0.4.24; contract DelegateProxy is ERCProxy, IsContract { uint256 internal constant FWD_GAS_LIMIT = 10000; /** * @dev Performs a delegatecall and returns whatever the delegatecall returned (entire context execution will return!) * @param _dst Destination address to perform the delegatecall * @param _calldata Calldata for the delegatecall */ function delegatedFwd(address _dst, bytes _calldata) internal { require(isContract(_dst)); uint256 fwdGasLimit = FWD_GAS_LIMIT; assembly { let result := delegatecall(sub(gas, fwdGasLimit), _dst, add(_calldata, 0x20), mload(_calldata), 0, 0) let size := returndatasize let ptr := mload(0x40) returndatacopy(ptr, 0, size) // revert instead of invalid() bc if the underlying call failed with invalid() it already wasted gas. // if the call returned error data, forward it switch result case 0 { revert(ptr, size) } default { return(ptr, size) } } } } // File: contracts/common/DepositableStorage.sol pragma solidity 0.4.24; contract DepositableStorage { using UnstructuredStorage for bytes32; // keccak256("aragonOS.depositableStorage.depositable") bytes32 internal constant DEPOSITABLE_POSITION = 0x665fd576fbbe6f247aff98f5c94a561e3f71ec2d3c988d56f12d342396c50cea; function isDepositable() public view returns (bool) { return DEPOSITABLE_POSITION.getStorageBool(); } function setDepositable(bool _depositable) internal { DEPOSITABLE_POSITION.setStorageBool(_depositable); } } // File: contracts/common/DepositableDelegateProxy.sol pragma solidity 0.4.24; contract DepositableDelegateProxy is DepositableStorage, DelegateProxy { event ProxyDeposit(address sender, uint256 value); function () external payable { uint256 forwardGasThreshold = FWD_GAS_LIMIT; bytes32 isDepositablePosition = DEPOSITABLE_POSITION; // Optimized assembly implementation to prevent EIP-1884 from breaking deposits, reference code in Solidity: // https://github.com/aragon/aragonOS/blob/v4.2.1/contracts/common/DepositableDelegateProxy.sol#L10-L20 assembly { // Continue only if the gas left is lower than the threshold for forwarding to the implementation code, // otherwise continue outside of the assembly block. if lt(gas, forwardGasThreshold) { // Only accept the deposit and emit an event if all of the following are true: // the proxy accepts deposits (isDepositable), msg.data.length == 0, and msg.value > 0 if and(and(sload(isDepositablePosition), iszero(calldatasize)), gt(callvalue, 0)) { // Equivalent Solidity code for emitting the event: // emit ProxyDeposit(msg.sender, msg.value); let logData := mload(0x40) // free memory pointer mstore(logData, caller) // add 'msg.sender' to the log data (first event param) mstore(add(logData, 0x20), callvalue) // add 'msg.value' to the log data (second event param) // Emit an event with one topic to identify the event: keccak256('ProxyDeposit(address,uint256)') = 0x15ee...dee1 log1(logData, 0x40, 0x15eeaa57c7bd188c1388020bcadc2c436ec60d647d36ef5b9eb3c742217ddee1) stop() // Stop. Exits execution context } // If any of above checks failed, revert the execution (if ETH was sent, it is returned to the sender) revert(0, 0) } } address target = implementation(); delegatedFwd(target, msg.data); } } // File: contracts/kernel/KernelConstants.sol /* * SPDX-License-Identitifer: MIT */ pragma solidity ^0.4.24; contract KernelAppIds { /* Hardcoded constants to save gas bytes32 internal constant KERNEL_CORE_APP_ID = apmNamehash("kernel"); bytes32 internal constant KERNEL_DEFAULT_ACL_APP_ID = apmNamehash("acl"); bytes32 internal constant KERNEL_DEFAULT_VAULT_APP_ID = apmNamehash("vault"); */ bytes32 internal constant KERNEL_CORE_APP_ID = 0x3b4bf6bf3ad5000ecf0f989d5befde585c6860fea3e574a4fab4c49d1c177d9c; bytes32 internal constant KERNEL_DEFAULT_ACL_APP_ID = 0xe3262375f45a6e2026b7e7b18c2b807434f2508fe1a2a3dfb493c7df8f4aad6a; bytes32 internal constant KERNEL_DEFAULT_VAULT_APP_ID = 0x7e852e0fcfce6551c13800f1e7476f982525c2b5277ba14b24339c68416336d1; } contract KernelNamespaceConstants { /* Hardcoded constants to save gas bytes32 internal constant KERNEL_CORE_NAMESPACE = keccak256("core"); bytes32 internal constant KERNEL_APP_BASES_NAMESPACE = keccak256("base"); bytes32 internal constant KERNEL_APP_ADDR_NAMESPACE = keccak256("app"); */ bytes32 internal constant KERNEL_CORE_NAMESPACE = 0xc681a85306374a5ab27f0bbc385296a54bcd314a1948b6cf61c4ea1bc44bb9f8; bytes32 internal constant KERNEL_APP_BASES_NAMESPACE = 0xf1f3eb40f5bc1ad1344716ced8b8a0431d840b5783aea1fd01786bc26f35ac0f; bytes32 internal constant KERNEL_APP_ADDR_NAMESPACE = 0xd6f028ca0e8edb4a8c9757ca4fdccab25fa1e0317da1188108f7d2dee14902fb; } // File: contracts/apps/AppProxyBase.sol pragma solidity 0.4.24; contract AppProxyBase is AppStorage, DepositableDelegateProxy, KernelNamespaceConstants { /** * @dev Initialize AppProxy * @param _kernel Reference to organization kernel for the app * @param _appId Identifier for app * @param _initializePayload Payload for call to be made after setup to initialize */ constructor(IKernel _kernel, bytes32 _appId, bytes _initializePayload) public { setKernel(_kernel); setAppId(_appId); // Implicit check that kernel is actually a Kernel // The EVM doesn't actually provide a way for us to make sure, but we can force a revert to // occur if the kernel is set to 0x0 or a non-code address when we try to call a method on // it. address appCode = getAppBase(_appId); // If initialize payload is provided, it will be executed if (_initializePayload.length > 0) { require(isContract(appCode)); // Cannot make delegatecall as a delegateproxy.delegatedFwd as it // returns ending execution context and halts contract deployment require(appCode.delegatecall(_initializePayload)); } } function getAppBase(bytes32 _appId) internal view returns (address) { return kernel().getApp(KERNEL_APP_BASES_NAMESPACE, _appId); } } // File: contracts/apps/AppProxyUpgradeable.sol pragma solidity 0.4.24; contract AppProxyUpgradeable is AppProxyBase { /** * @dev Initialize AppProxyUpgradeable (makes it an upgradeable Aragon app) * @param _kernel Reference to organization kernel for the app * @param _appId Identifier for app * @param _initializePayload Payload for call to be made after setup to initialize */ constructor(IKernel _kernel, bytes32 _appId, bytes _initializePayload) AppProxyBase(_kernel, _appId, _initializePayload) public // solium-disable-line visibility-first { // solium-disable-previous-line no-empty-blocks } /** * @dev ERC897, the address the proxy would delegate calls to */ function implementation() public view returns (address) { return getAppBase(appId()); } /** * @dev ERC897, whether it is a forwarding (1) or an upgradeable (2) proxy */ function proxyType() public pure returns (uint256 proxyTypeId) { return UPGRADEABLE; } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"constant":true,"inputs":[],"name":"proxyType","outputs":[{"name":"proxyTypeId","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"isDepositable","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"implementation","outputs":[{"name":"","type":"address"}],"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":"kernel","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_kernel","type":"address"},{"name":"_appId","type":"bytes32"},{"name":"_initializePayload","type":"bytes"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"ProxyDeposit","type":"event"}]
Contract Creation Code
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
Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000008a83d4bce45b4c4f751f76cf565953d1e4a3bf0abf8491150dafc5dcaee5b861414dca922de09ccffa344964ae167212e8c673ae00000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _kernel (address): 0x8A83D4bCE45b4C4F751f76cf565953D1E4A3BF0a
Arg [1] : _appId (bytes32): 0xbf8491150dafc5dcaee5b861414dca922de09ccffa344964ae167212e8c673ae
Arg [2] : _initializePayload (bytes): 0x
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000008a83d4bce45b4c4f751f76cf565953d1e4a3bf0a
Arg [1] : bf8491150dafc5dcaee5b861414dca922de09ccffa344964ae167212e8c673ae
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000000
Deployed Bytecode Sourcemap
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Swarm Source
bzzr://976bd9d6f6ad7a0d339ea3b373704842cdb3d9e15e7463676c04c1fa6ffb5641
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