Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- GnosisSafeL2
- Optimization enabled
- false
- Compiler version
- v0.7.6+commit.7338295f
- EVM Version
- default
- Verified at
- 2021-11-22T13:04:15.761874Z
Contract source code
// Sources flattened with hardhat v2.2.1 https://hardhat.org
// File contracts/common/Enum.sol
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title Enum - Collection of enums
/// @author Richard Meissner - <[email protected]>
contract Enum {
enum Operation {Call, DelegateCall}
}
// File contracts/common/SelfAuthorized.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title SelfAuthorized - authorizes current contract to perform actions
/// @author Richard Meissner - <[email protected]>
contract SelfAuthorized {
function requireSelfCall() private view {
require(msg.sender == address(this), "GS031");
}
modifier authorized() {
// This is a function call as it minimized the bytecode size
requireSelfCall();
_;
}
}
// File contracts/base/Executor.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title Executor - A contract that can execute transactions
/// @author Richard Meissner - <[email protected]>
contract Executor {
function execute(
address to,
uint256 value,
bytes memory data,
Enum.Operation operation,
uint256 txGas
) internal returns (bool success) {
if (operation == Enum.Operation.DelegateCall) {
// solhint-disable-next-line no-inline-assembly
assembly {
success := delegatecall(txGas, to, add(data, 0x20), mload(data), 0, 0)
}
} else {
// solhint-disable-next-line no-inline-assembly
assembly {
success := call(txGas, to, value, add(data, 0x20), mload(data), 0, 0)
}
}
}
}
// File contracts/base/ModuleManager.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title Module Manager - A contract that manages modules that can execute transactions via this contract
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract ModuleManager is SelfAuthorized, Executor {
event EnabledModule(address module);
event DisabledModule(address module);
event ExecutionFromModuleSuccess(address indexed module);
event ExecutionFromModuleFailure(address indexed module);
address internal constant SENTINEL_MODULES = address(0x1);
mapping(address => address) internal modules;
function setupModules(address to, bytes memory data) internal {
require(modules[SENTINEL_MODULES] == address(0), "GS100");
modules[SENTINEL_MODULES] = SENTINEL_MODULES;
if (to != address(0))
// Setup has to complete successfully or transaction fails.
require(execute(to, 0, data, Enum.Operation.DelegateCall, gasleft()), "GS000");
}
/// @dev Allows to add a module to the whitelist.
/// This can only be done via a Safe transaction.
/// @notice Enables the module `module` for the Safe.
/// @param module Module to be whitelisted.
function enableModule(address module) public authorized {
// Module address cannot be null or sentinel.
require(module != address(0) && module != SENTINEL_MODULES, "GS101");
// Module cannot be added twice.
require(modules[module] == address(0), "GS102");
modules[module] = modules[SENTINEL_MODULES];
modules[SENTINEL_MODULES] = module;
emit EnabledModule(module);
}
/// @dev Allows to remove a module from the whitelist.
/// This can only be done via a Safe transaction.
/// @notice Disables the module `module` for the Safe.
/// @param prevModule Module that pointed to the module to be removed in the linked list
/// @param module Module to be removed.
function disableModule(address prevModule, address module) public authorized {
// Validate module address and check that it corresponds to module index.
require(module != address(0) && module != SENTINEL_MODULES, "GS101");
require(modules[prevModule] == module, "GS103");
modules[prevModule] = modules[module];
modules[module] = address(0);
emit DisabledModule(module);
}
/// @dev Allows a Module to execute a Safe transaction without any further confirmations.
/// @param to Destination address of module transaction.
/// @param value Ether value of module transaction.
/// @param data Data payload of module transaction.
/// @param operation Operation type of module transaction.
function execTransactionFromModule(
address to,
uint256 value,
bytes memory data,
Enum.Operation operation
) public virtual returns (bool success) {
// Only whitelisted modules are allowed.
require(msg.sender != SENTINEL_MODULES && modules[msg.sender] != address(0), "GS104");
// Execute transaction without further confirmations.
success = execute(to, value, data, operation, gasleft());
if (success) emit ExecutionFromModuleSuccess(msg.sender);
else emit ExecutionFromModuleFailure(msg.sender);
}
/// @dev Allows a Module to execute a Safe transaction without any further confirmations and return data
/// @param to Destination address of module transaction.
/// @param value Ether value of module transaction.
/// @param data Data payload of module transaction.
/// @param operation Operation type of module transaction.
function execTransactionFromModuleReturnData(
address to,
uint256 value,
bytes memory data,
Enum.Operation operation
) public returns (bool success, bytes memory returnData) {
success = execTransactionFromModule(to, value, data, operation);
// solhint-disable-next-line no-inline-assembly
assembly {
// Load free memory location
let ptr := mload(0x40)
// We allocate memory for the return data by setting the free memory location to
// current free memory location + data size + 32 bytes for data size value
mstore(0x40, add(ptr, add(returndatasize(), 0x20)))
// Store the size
mstore(ptr, returndatasize())
// Store the data
returndatacopy(add(ptr, 0x20), 0, returndatasize())
// Point the return data to the correct memory location
returnData := ptr
}
}
/// @dev Returns if an module is enabled
/// @return True if the module is enabled
function isModuleEnabled(address module) public view returns (bool) {
return SENTINEL_MODULES != module && modules[module] != address(0);
}
/// @dev Returns array of modules.
/// @param start Start of the page.
/// @param pageSize Maximum number of modules that should be returned.
/// @return array Array of modules.
/// @return next Start of the next page.
function getModulesPaginated(address start, uint256 pageSize) external view returns (address[] memory array, address next) {
// Init array with max page size
array = new address[](pageSize);
// Populate return array
uint256 moduleCount = 0;
address currentModule = modules[start];
while (currentModule != address(0x0) && currentModule != SENTINEL_MODULES && moduleCount < pageSize) {
array[moduleCount] = currentModule;
currentModule = modules[currentModule];
moduleCount++;
}
next = currentModule;
// Set correct size of returned array
// solhint-disable-next-line no-inline-assembly
assembly {
mstore(array, moduleCount)
}
}
}
// File contracts/base/OwnerManager.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title OwnerManager - Manages a set of owners and a threshold to perform actions.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract OwnerManager is SelfAuthorized {
event AddedOwner(address owner);
event RemovedOwner(address owner);
event ChangedThreshold(uint256 threshold);
address internal constant SENTINEL_OWNERS = address(0x1);
mapping(address => address) internal owners;
uint256 internal ownerCount;
uint256 internal threshold;
/// @dev Setup function sets initial storage of contract.
/// @param _owners List of Safe owners.
/// @param _threshold Number of required confirmations for a Safe transaction.
function setupOwners(address[] memory _owners, uint256 _threshold) internal {
// Threshold can only be 0 at initialization.
// Check ensures that setup function can only be called once.
require(threshold == 0, "GS200");
// Validate that threshold is smaller than number of added owners.
require(_threshold <= _owners.length, "GS201");
// There has to be at least one Safe owner.
require(_threshold >= 1, "GS202");
// Initializing Safe owners.
address currentOwner = SENTINEL_OWNERS;
for (uint256 i = 0; i < _owners.length; i++) {
// Owner address cannot be null.
address owner = _owners[i];
require(owner != address(0) && owner != SENTINEL_OWNERS && owner != address(this) && currentOwner != owner, "GS203");
// No duplicate owners allowed.
require(owners[owner] == address(0), "GS204");
owners[currentOwner] = owner;
currentOwner = owner;
}
owners[currentOwner] = SENTINEL_OWNERS;
ownerCount = _owners.length;
threshold = _threshold;
}
/// @dev Allows to add a new owner to the Safe and update the threshold at the same time.
/// This can only be done via a Safe transaction.
/// @notice Adds the owner `owner` to the Safe and updates the threshold to `_threshold`.
/// @param owner New owner address.
/// @param _threshold New threshold.
function addOwnerWithThreshold(address owner, uint256 _threshold) public authorized {
// Owner address cannot be null, the sentinel or the Safe itself.
require(owner != address(0) && owner != SENTINEL_OWNERS && owner != address(this), "GS203");
// No duplicate owners allowed.
require(owners[owner] == address(0), "GS204");
owners[owner] = owners[SENTINEL_OWNERS];
owners[SENTINEL_OWNERS] = owner;
ownerCount++;
emit AddedOwner(owner);
// Change threshold if threshold was changed.
if (threshold != _threshold) changeThreshold(_threshold);
}
/// @dev Allows to remove an owner from the Safe and update the threshold at the same time.
/// This can only be done via a Safe transaction.
/// @notice Removes the owner `owner` from the Safe and updates the threshold to `_threshold`.
/// @param prevOwner Owner that pointed to the owner to be removed in the linked list
/// @param owner Owner address to be removed.
/// @param _threshold New threshold.
function removeOwner(
address prevOwner,
address owner,
uint256 _threshold
) public authorized {
// Only allow to remove an owner, if threshold can still be reached.
require(ownerCount - 1 >= _threshold, "GS201");
// Validate owner address and check that it corresponds to owner index.
require(owner != address(0) && owner != SENTINEL_OWNERS, "GS203");
require(owners[prevOwner] == owner, "GS205");
owners[prevOwner] = owners[owner];
owners[owner] = address(0);
ownerCount--;
emit RemovedOwner(owner);
// Change threshold if threshold was changed.
if (threshold != _threshold) changeThreshold(_threshold);
}
/// @dev Allows to swap/replace an owner from the Safe with another address.
/// This can only be done via a Safe transaction.
/// @notice Replaces the owner `oldOwner` in the Safe with `newOwner`.
/// @param prevOwner Owner that pointed to the owner to be replaced in the linked list
/// @param oldOwner Owner address to be replaced.
/// @param newOwner New owner address.
function swapOwner(
address prevOwner,
address oldOwner,
address newOwner
) public authorized {
// Owner address cannot be null, the sentinel or the Safe itself.
require(newOwner != address(0) && newOwner != SENTINEL_OWNERS && newOwner != address(this), "GS203");
// No duplicate owners allowed.
require(owners[newOwner] == address(0), "GS204");
// Validate oldOwner address and check that it corresponds to owner index.
require(oldOwner != address(0) && oldOwner != SENTINEL_OWNERS, "GS203");
require(owners[prevOwner] == oldOwner, "GS205");
owners[newOwner] = owners[oldOwner];
owners[prevOwner] = newOwner;
owners[oldOwner] = address(0);
emit RemovedOwner(oldOwner);
emit AddedOwner(newOwner);
}
/// @dev Allows to update the number of required confirmations by Safe owners.
/// This can only be done via a Safe transaction.
/// @notice Changes the threshold of the Safe to `_threshold`.
/// @param _threshold New threshold.
function changeThreshold(uint256 _threshold) public authorized {
// Validate that threshold is smaller than number of owners.
require(_threshold <= ownerCount, "GS201");
// There has to be at least one Safe owner.
require(_threshold >= 1, "GS202");
threshold = _threshold;
emit ChangedThreshold(threshold);
}
function getThreshold() public view returns (uint256) {
return threshold;
}
function isOwner(address owner) public view returns (bool) {
return owner != SENTINEL_OWNERS && owners[owner] != address(0);
}
/// @dev Returns array of owners.
/// @return Array of Safe owners.
function getOwners() public view returns (address[] memory) {
address[] memory array = new address[](ownerCount);
// populate return array
uint256 index = 0;
address currentOwner = owners[SENTINEL_OWNERS];
while (currentOwner != SENTINEL_OWNERS) {
array[index] = currentOwner;
currentOwner = owners[currentOwner];
index++;
}
return array;
}
}
// File contracts/base/FallbackManager.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title Fallback Manager - A contract that manages fallback calls made to this contract
/// @author Richard Meissner - <[email protected]>
contract FallbackManager is SelfAuthorized {
event ChangedFallbackHandler(address handler);
// keccak256("fallback_manager.handler.address")
bytes32 internal constant FALLBACK_HANDLER_STORAGE_SLOT = 0x6c9a6c4a39284e37ed1cf53d337577d14212a4870fb976a4366c693b939918d5;
function internalSetFallbackHandler(address handler) internal {
bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
// solhint-disable-next-line no-inline-assembly
assembly {
sstore(slot, handler)
}
}
/// @dev Allows to add a contract to handle fallback calls.
/// Only fallback calls without value and with data will be forwarded.
/// This can only be done via a Safe transaction.
/// @param handler contract to handle fallbacks calls.
function setFallbackHandler(address handler) public authorized {
internalSetFallbackHandler(handler);
emit ChangedFallbackHandler(handler);
}
// solhint-disable-next-line payable-fallback,no-complex-fallback
fallback() external {
bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
// solhint-disable-next-line no-inline-assembly
assembly {
let handler := sload(slot)
if iszero(handler) {
return(0, 0)
}
calldatacopy(0, 0, calldatasize())
// The msg.sender address is shifted to the left by 12 bytes to remove the padding
// Then the address without padding is stored right after the calldata
mstore(calldatasize(), shl(96, caller()))
// Add 20 bytes for the address appended add the end
let success := call(gas(), handler, 0, 0, add(calldatasize(), 20), 0, 0)
returndatacopy(0, 0, returndatasize())
if iszero(success) {
revert(0, returndatasize())
}
return(0, returndatasize())
}
}
}
// File contracts/base/GuardManager.sol
pragma solidity >=0.7.0 <0.9.0;
interface Guard {
function checkTransaction(
address to,
uint256 value,
bytes memory data,
Enum.Operation operation,
uint256 safeTxGas,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address payable refundReceiver,
bytes memory signatures,
address msgSender
) external;
function checkAfterExecution(bytes32 txHash, bool success) external;
}
/// @title Fallback Manager - A contract that manages fallback calls made to this contract
/// @author Richard Meissner - <[email protected]>
contract GuardManager is SelfAuthorized {
event ChangedGuard(address guard);
// keccak256("guard_manager.guard.address")
bytes32 internal constant GUARD_STORAGE_SLOT = 0x4a204f620c8c5ccdca3fd54d003badd85ba500436a431f0cbda4f558c93c34c8;
/// @dev Set a guard that checks transactions before execution
/// @param guard The address of the guard to be used or the 0 address to disable the guard
function setGuard(address guard) external authorized {
bytes32 slot = GUARD_STORAGE_SLOT;
// solhint-disable-next-line no-inline-assembly
assembly {
sstore(slot, guard)
}
emit ChangedGuard(guard);
}
function getGuard() internal view returns (address guard) {
bytes32 slot = GUARD_STORAGE_SLOT;
// solhint-disable-next-line no-inline-assembly
assembly {
guard := sload(slot)
}
}
}
// File contracts/common/EtherPaymentFallback.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title EtherPaymentFallback - A contract that has a fallback to accept ether payments
/// @author Richard Meissner - <[email protected]>
contract EtherPaymentFallback {
event SafeReceived(address indexed sender, uint256 value);
/// @dev Fallback function accepts Ether transactions.
receive() external payable {
emit SafeReceived(msg.sender, msg.value);
}
}
// File contracts/common/Singleton.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title Singleton - Base for singleton contracts (should always be first super contract)
/// This contract is tightly coupled to our proxy contract (see `proxies/GnosisSafeProxy.sol`)
/// @author Richard Meissner - <[email protected]>
contract Singleton {
// singleton always needs to be first declared variable, to ensure that it is at the same location as in the Proxy contract.
// It should also always be ensured that the address is stored alone (uses a full word)
address private singleton;
}
// File contracts/common/SignatureDecoder.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title SignatureDecoder - Decodes signatures that a encoded as bytes
/// @author Richard Meissner - <[email protected]>
contract SignatureDecoder {
/// @dev divides bytes signature into `uint8 v, bytes32 r, bytes32 s`.
/// @notice Make sure to peform a bounds check for @param pos, to avoid out of bounds access on @param signatures
/// @param pos which signature to read. A prior bounds check of this parameter should be performed, to avoid out of bounds access
/// @param signatures concatenated rsv signatures
function signatureSplit(bytes memory signatures, uint256 pos)
internal
pure
returns (
uint8 v,
bytes32 r,
bytes32 s
)
{
// The signature format is a compact form of:
// {bytes32 r}{bytes32 s}{uint8 v}
// Compact means, uint8 is not padded to 32 bytes.
// solhint-disable-next-line no-inline-assembly
assembly {
let signaturePos := mul(0x41, pos)
r := mload(add(signatures, add(signaturePos, 0x20)))
s := mload(add(signatures, add(signaturePos, 0x40)))
// Here we are loading the last 32 bytes, including 31 bytes
// of 's'. There is no 'mload8' to do this.
//
// 'byte' is not working due to the Solidity parser, so lets
// use the second best option, 'and'
v := and(mload(add(signatures, add(signaturePos, 0x41))), 0xff)
}
}
}
// File contracts/common/SecuredTokenTransfer.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title SecuredTokenTransfer - Secure token transfer
/// @author Richard Meissner - <[email protected]>
contract SecuredTokenTransfer {
/// @dev Transfers a token and returns if it was a success
/// @param token Token that should be transferred
/// @param receiver Receiver to whom the token should be transferred
/// @param amount The amount of tokens that should be transferred
function transferToken(
address token,
address receiver,
uint256 amount
) internal returns (bool transferred) {
// 0xa9059cbb - keccack("transfer(address,uint256)")
bytes memory data = abi.encodeWithSelector(0xa9059cbb, receiver, amount);
// solhint-disable-next-line no-inline-assembly
assembly {
// We write the return value to scratch space.
// See https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html#layout-in-memory
let success := call(sub(gas(), 10000), token, 0, add(data, 0x20), mload(data), 0, 0x20)
switch returndatasize()
case 0 {
transferred := success
}
case 0x20 {
transferred := iszero(or(iszero(success), iszero(mload(0))))
}
default {
transferred := 0
}
}
}
}
// File contracts/common/StorageAccessible.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title StorageAccessible - generic base contract that allows callers to access all internal storage.
/// @notice See https://github.com/gnosis/util-contracts/blob/bb5fe5fb5df6d8400998094fb1b32a178a47c3a1/contracts/StorageAccessible.sol
contract StorageAccessible {
/**
* @dev Reads `length` bytes of storage in the currents contract
* @param offset - the offset in the current contract's storage in words to start reading from
* @param length - the number of words (32 bytes) of data to read
* @return the bytes that were read.
*/
function getStorageAt(uint256 offset, uint256 length) public view returns (bytes memory) {
bytes memory result = new bytes(length * 32);
for (uint256 index = 0; index < length; index++) {
// solhint-disable-next-line no-inline-assembly
assembly {
let word := sload(add(offset, index))
mstore(add(add(result, 0x20), mul(index, 0x20)), word)
}
}
return result;
}
/**
* @dev Performs a delegetecall on a targetContract in the context of self.
* Internally reverts execution to avoid side effects (making it static).
*
* This method reverts with data equal to `abi.encode(bool(success), bytes(response))`.
* Specifically, the `returndata` after a call to this method will be:
* `success:bool || response.length:uint256 || response:bytes`.
*
* @param targetContract Address of the contract containing the code to execute.
* @param calldataPayload Calldata that should be sent to the target contract (encoded method name and arguments).
*/
function simulateAndRevert(address targetContract, bytes memory calldataPayload) external {
// solhint-disable-next-line no-inline-assembly
assembly {
let success := delegatecall(gas(), targetContract, add(calldataPayload, 0x20), mload(calldataPayload), 0, 0)
mstore(0x00, success)
mstore(0x20, returndatasize())
returndatacopy(0x40, 0, returndatasize())
revert(0, add(returndatasize(), 0x40))
}
}
}
// File contracts/interfaces/ISignatureValidator.sol
pragma solidity >=0.7.0 <0.9.0;
contract ISignatureValidatorConstants {
// bytes4(keccak256("isValidSignature(bytes,bytes)")
bytes4 internal constant EIP1271_MAGIC_VALUE = 0x20c13b0b;
}
abstract contract ISignatureValidator is ISignatureValidatorConstants {
/**
* @dev Should return whether the signature provided is valid for the provided data
* @param _data Arbitrary length data signed on the behalf of address(this)
* @param _signature Signature byte array associated with _data
*
* MUST return the bytes4 magic value 0x20c13b0b when function passes.
* MUST NOT modify state (using STATICCALL for solc < 0.5, view modifier for solc > 0.5)
* MUST allow external calls
*/
function isValidSignature(bytes memory _data, bytes memory _signature) public view virtual returns (bytes4);
}
// File contracts/external/GnosisSafeMath.sol
pragma solidity >=0.7.0 <0.9.0;
/**
* @title GnosisSafeMath
* @dev Math operations with safety checks that revert on error
* Renamed from SafeMath to GnosisSafeMath to avoid conflicts
* TODO: remove once open zeppelin update to solc 0.5.0
*/
library GnosisSafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b);
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a);
uint256 c = a - b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a);
return c;
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a >= b ? a : b;
}
}
// File contracts/GnosisSafe.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title Gnosis Safe - A multisignature wallet with support for confirmations using signed messages based on ERC191.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafe is
EtherPaymentFallback,
Singleton,
ModuleManager,
OwnerManager,
SignatureDecoder,
SecuredTokenTransfer,
ISignatureValidatorConstants,
FallbackManager,
StorageAccessible,
GuardManager
{
using GnosisSafeMath for uint256;
string public constant VERSION = "1.3.0";
// keccak256(
// "EIP712Domain(uint256 chainId,address verifyingContract)"
// );
bytes32 private constant DOMAIN_SEPARATOR_TYPEHASH = 0x47e79534a245952e8b16893a336b85a3d9ea9fa8c573f3d803afb92a79469218;
// keccak256(
// "SafeTx(address to,uint256 value,bytes data,uint8 operation,uint256 safeTxGas,uint256 baseGas,uint256 gasPrice,address gasToken,address refundReceiver,uint256 nonce)"
// );
bytes32 private constant SAFE_TX_TYPEHASH = 0xbb8310d486368db6bd6f849402fdd73ad53d316b5a4b2644ad6efe0f941286d8;
event SafeSetup(address indexed initiator, address[] owners, uint256 threshold, address initializer, address fallbackHandler);
event ApproveHash(bytes32 indexed approvedHash, address indexed owner);
event SignMsg(bytes32 indexed msgHash);
event ExecutionFailure(bytes32 txHash, uint256 payment);
event ExecutionSuccess(bytes32 txHash, uint256 payment);
uint256 public nonce;
bytes32 private _deprecatedDomainSeparator;
// Mapping to keep track of all message hashes that have been approve by ALL REQUIRED owners
mapping(bytes32 => uint256) public signedMessages;
// Mapping to keep track of all hashes (message or transaction) that have been approve by ANY owners
mapping(address => mapping(bytes32 => uint256)) public approvedHashes;
// This constructor ensures that this contract can only be used as a master copy for Proxy contracts
constructor() {
// By setting the threshold it is not possible to call setup anymore,
// so we create a Safe with 0 owners and threshold 1.
// This is an unusable Safe, perfect for the singleton
threshold = 1;
}
/// @dev Setup function sets initial storage of contract.
/// @param _owners List of Safe owners.
/// @param _threshold Number of required confirmations for a Safe transaction.
/// @param to Contract address for optional delegate call.
/// @param data Data payload for optional delegate call.
/// @param fallbackHandler Handler for fallback calls to this contract
/// @param paymentToken Token that should be used for the payment (0 is ETH)
/// @param payment Value that should be paid
/// @param paymentReceiver Adddress that should receive the payment (or 0 if tx.origin)
function setup(
address[] calldata _owners,
uint256 _threshold,
address to,
bytes calldata data,
address fallbackHandler,
address paymentToken,
uint256 payment,
address payable paymentReceiver
) external {
// setupOwners checks if the Threshold is already set, therefore preventing that this method is called twice
setupOwners(_owners, _threshold);
if (fallbackHandler != address(0)) internalSetFallbackHandler(fallbackHandler);
// As setupOwners can only be called if the contract has not been initialized we don't need a check for setupModules
setupModules(to, data);
if (payment > 0) {
// To avoid running into issues with EIP-170 we reuse the handlePayment function (to avoid adjusting code of that has been verified we do not adjust the method itself)
// baseGas = 0, gasPrice = 1 and gas = payment => amount = (payment + 0) * 1 = payment
handlePayment(payment, 0, 1, paymentToken, paymentReceiver);
}
emit SafeSetup(msg.sender, _owners, _threshold, to, fallbackHandler);
}
/// @dev Allows to execute a Safe transaction confirmed by required number of owners and then pays the account that submitted the transaction.
/// Note: The fees are always transferred, even if the user transaction fails.
/// @param to Destination address of Safe transaction.
/// @param value Ether value of Safe transaction.
/// @param data Data payload of Safe transaction.
/// @param operation Operation type of Safe transaction.
/// @param safeTxGas Gas that should be used for the Safe transaction.
/// @param baseGas Gas costs that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
/// @param gasPrice Gas price that should be used for the payment calculation.
/// @param gasToken Token address (or 0 if ETH) that is used for the payment.
/// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
/// @param signatures Packed signature data ({bytes32 r}{bytes32 s}{uint8 v})
function execTransaction(
address to,
uint256 value,
bytes calldata data,
Enum.Operation operation,
uint256 safeTxGas,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address payable refundReceiver,
bytes memory signatures
) public payable virtual returns (bool success) {
bytes32 txHash;
// Use scope here to limit variable lifetime and prevent `stack too deep` errors
{
bytes memory txHashData =
encodeTransactionData(
// Transaction info
to,
value,
data,
operation,
safeTxGas,
// Payment info
baseGas,
gasPrice,
gasToken,
refundReceiver,
// Signature info
nonce
);
// Increase nonce and execute transaction.
nonce++;
txHash = keccak256(txHashData);
checkSignatures(txHash, txHashData, signatures);
}
address guard = getGuard();
{
if (guard != address(0)) {
Guard(guard).checkTransaction(
// Transaction info
to,
value,
data,
operation,
safeTxGas,
// Payment info
baseGas,
gasPrice,
gasToken,
refundReceiver,
// Signature info
signatures,
msg.sender
);
}
}
// We require some gas to emit the events (at least 2500) after the execution and some to perform code until the execution (500)
// We also include the 1/64 in the check that is not send along with a call to counteract potential shortings because of EIP-150
require(gasleft() >= ((safeTxGas * 64) / 63).max(safeTxGas + 2500) + 500, "GS010");
// Use scope here to limit variable lifetime and prevent `stack too deep` errors
{
uint256 gasUsed = gasleft();
// If the gasPrice is 0 we assume that nearly all available gas can be used (it is always more than safeTxGas)
// We only substract 2500 (compared to the 3000 before) to ensure that the amount passed is still higher than safeTxGas
success = execute(to, value, data, operation, gasPrice == 0 ? (gasleft() - 2500) : safeTxGas);
gasUsed = gasUsed.sub(gasleft());
// If no safeTxGas and no gasPrice was set (e.g. both are 0), then the internal tx is required to be successful
// This makes it possible to use `estimateGas` without issues, as it searches for the minimum gas where the tx doesn't revert
require(success || safeTxGas != 0 || gasPrice != 0, "GS013");
// We transfer the calculated tx costs to the tx.origin to avoid sending it to intermediate contracts that have made calls
uint256 payment = 0;
if (gasPrice > 0) {
payment = handlePayment(gasUsed, baseGas, gasPrice, gasToken, refundReceiver);
}
if (success) emit ExecutionSuccess(txHash, payment);
else emit ExecutionFailure(txHash, payment);
}
{
if (guard != address(0)) {
Guard(guard).checkAfterExecution(txHash, success);
}
}
}
function handlePayment(
uint256 gasUsed,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address payable refundReceiver
) private returns (uint256 payment) {
// solhint-disable-next-line avoid-tx-origin
address payable receiver = refundReceiver == address(0) ? payable(tx.origin) : refundReceiver;
if (gasToken == address(0)) {
// For ETH we will only adjust the gas price to not be higher than the actual used gas price
payment = gasUsed.add(baseGas).mul(gasPrice < tx.gasprice ? gasPrice : tx.gasprice);
require(receiver.send(payment), "GS011");
} else {
payment = gasUsed.add(baseGas).mul(gasPrice);
require(transferToken(gasToken, receiver, payment), "GS012");
}
}
/**
* @dev Checks whether the signature provided is valid for the provided data, hash. Will revert otherwise.
* @param dataHash Hash of the data (could be either a message hash or transaction hash)
* @param data That should be signed (this is passed to an external validator contract)
* @param signatures Signature data that should be verified. Can be ECDSA signature, contract signature (EIP-1271) or approved hash.
*/
function checkSignatures(
bytes32 dataHash,
bytes memory data,
bytes memory signatures
) public view {
// Load threshold to avoid multiple storage loads
uint256 _threshold = threshold;
// Check that a threshold is set
require(_threshold > 0, "GS001");
checkNSignatures(dataHash, data, signatures, _threshold);
}
/**
* @dev Checks whether the signature provided is valid for the provided data, hash. Will revert otherwise.
* @param dataHash Hash of the data (could be either a message hash or transaction hash)
* @param data That should be signed (this is passed to an external validator contract)
* @param signatures Signature data that should be verified. Can be ECDSA signature, contract signature (EIP-1271) or approved hash.
* @param requiredSignatures Amount of required valid signatures.
*/
function checkNSignatures(
bytes32 dataHash,
bytes memory data,
bytes memory signatures,
uint256 requiredSignatures
) public view {
// Check that the provided signature data is not too short
require(signatures.length >= requiredSignatures.mul(65), "GS020");
// There cannot be an owner with address 0.
address lastOwner = address(0);
address currentOwner;
uint8 v;
bytes32 r;
bytes32 s;
uint256 i;
for (i = 0; i < requiredSignatures; i++) {
(v, r, s) = signatureSplit(signatures, i);
if (v == 0) {
// If v is 0 then it is a contract signature
// When handling contract signatures the address of the contract is encoded into r
currentOwner = address(uint160(uint256(r)));
// Check that signature data pointer (s) is not pointing inside the static part of the signatures bytes
// This check is not completely accurate, since it is possible that more signatures than the threshold are send.
// Here we only check that the pointer is not pointing inside the part that is being processed
require(uint256(s) >= requiredSignatures.mul(65), "GS021");
// Check that signature data pointer (s) is in bounds (points to the length of data -> 32 bytes)
require(uint256(s).add(32) <= signatures.length, "GS022");
// Check if the contract signature is in bounds: start of data is s + 32 and end is start + signature length
uint256 contractSignatureLen;
// solhint-disable-next-line no-inline-assembly
assembly {
contractSignatureLen := mload(add(add(signatures, s), 0x20))
}
require(uint256(s).add(32).add(contractSignatureLen) <= signatures.length, "GS023");
// Check signature
bytes memory contractSignature;
// solhint-disable-next-line no-inline-assembly
assembly {
// The signature data for contract signatures is appended to the concatenated signatures and the offset is stored in s
contractSignature := add(add(signatures, s), 0x20)
}
require(ISignatureValidator(currentOwner).isValidSignature(data, contractSignature) == EIP1271_MAGIC_VALUE, "GS024");
} else if (v == 1) {
// If v is 1 then it is an approved hash
// When handling approved hashes the address of the approver is encoded into r
currentOwner = address(uint160(uint256(r)));
// Hashes are automatically approved by the sender of the message or when they have been pre-approved via a separate transaction
require(msg.sender == currentOwner || approvedHashes[currentOwner][dataHash] != 0, "GS025");
} else if (v > 30) {
// If v > 30 then default va (27,28) has been adjusted for eth_sign flow
// To support eth_sign and similar we adjust v and hash the messageHash with the Ethereum message prefix before applying ecrecover
currentOwner = ecrecover(keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", dataHash)), v - 4, r, s);
} else {
// Default is the ecrecover flow with the provided data hash
// Use ecrecover with the messageHash for EOA signatures
currentOwner = ecrecover(dataHash, v, r, s);
}
require(currentOwner > lastOwner && owners[currentOwner] != address(0) && currentOwner != SENTINEL_OWNERS, "GS026");
lastOwner = currentOwner;
}
}
/// @dev Allows to estimate a Safe transaction.
/// This method is only meant for estimation purpose, therefore the call will always revert and encode the result in the revert data.
/// Since the `estimateGas` function includes refunds, call this method to get an estimated of the costs that are deducted from the safe with `execTransaction`
/// @param to Destination address of Safe transaction.
/// @param value Ether value of Safe transaction.
/// @param data Data payload of Safe transaction.
/// @param operation Operation type of Safe transaction.
/// @return Estimate without refunds and overhead fees (base transaction and payload data gas costs).
/// @notice Deprecated in favor of common/StorageAccessible.sol and will be removed in next version.
function requiredTxGas(
address to,
uint256 value,
bytes calldata data,
Enum.Operation operation
) external returns (uint256) {
uint256 startGas = gasleft();
// We don't provide an error message here, as we use it to return the estimate
require(execute(to, value, data, operation, gasleft()));
uint256 requiredGas = startGas - gasleft();
// Convert response to string and return via error message
revert(string(abi.encodePacked(requiredGas)));
}
/**
* @dev Marks a hash as approved. This can be used to validate a hash that is used by a signature.
* @param hashToApprove The hash that should be marked as approved for signatures that are verified by this contract.
*/
function approveHash(bytes32 hashToApprove) external {
require(owners[msg.sender] != address(0), "GS030");
approvedHashes[msg.sender][hashToApprove] = 1;
emit ApproveHash(hashToApprove, msg.sender);
}
/// @dev Returns the chain id used by this contract.
function getChainId() public view returns (uint256) {
uint256 id;
// solhint-disable-next-line no-inline-assembly
assembly {
id := chainid()
}
return id;
}
function domainSeparator() public view returns (bytes32) {
return keccak256(abi.encode(DOMAIN_SEPARATOR_TYPEHASH, getChainId(), this));
}
/// @dev Returns the bytes that are hashed to be signed by owners.
/// @param to Destination address.
/// @param value Ether value.
/// @param data Data payload.
/// @param operation Operation type.
/// @param safeTxGas Gas that should be used for the safe transaction.
/// @param baseGas Gas costs for that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
/// @param gasPrice Maximum gas price that should be used for this transaction.
/// @param gasToken Token address (or 0 if ETH) that is used for the payment.
/// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
/// @param _nonce Transaction nonce.
/// @return Transaction hash bytes.
function encodeTransactionData(
address to,
uint256 value,
bytes calldata data,
Enum.Operation operation,
uint256 safeTxGas,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address refundReceiver,
uint256 _nonce
) public view returns (bytes memory) {
bytes32 safeTxHash =
keccak256(
abi.encode(
SAFE_TX_TYPEHASH,
to,
value,
keccak256(data),
operation,
safeTxGas,
baseGas,
gasPrice,
gasToken,
refundReceiver,
_nonce
)
);
return abi.encodePacked(bytes1(0x19), bytes1(0x01), domainSeparator(), safeTxHash);
}
/// @dev Returns hash to be signed by owners.
/// @param to Destination address.
/// @param value Ether value.
/// @param data Data payload.
/// @param operation Operation type.
/// @param safeTxGas Fas that should be used for the safe transaction.
/// @param baseGas Gas costs for data used to trigger the safe transaction.
/// @param gasPrice Maximum gas price that should be used for this transaction.
/// @param gasToken Token address (or 0 if ETH) that is used for the payment.
/// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
/// @param _nonce Transaction nonce.
/// @return Transaction hash.
function getTransactionHash(
address to,
uint256 value,
bytes calldata data,
Enum.Operation operation,
uint256 safeTxGas,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address refundReceiver,
uint256 _nonce
) public view returns (bytes32) {
return keccak256(encodeTransactionData(to, value, data, operation, safeTxGas, baseGas, gasPrice, gasToken, refundReceiver, _nonce));
}
}
// File contracts/GnosisSafeL2.sol
pragma solidity >=0.7.0 <0.9.0;
/// @title Gnosis Safe - A multisignature wallet with support for confirmations using signed messages based on ERC191.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeL2 is GnosisSafe {
event SafeMultiSigTransaction(
address to,
uint256 value,
bytes data,
Enum.Operation operation,
uint256 safeTxGas,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address payable refundReceiver,
bytes signatures,
// We combine nonce, sender and threshold into one to avoid stack too deep
// Dev note: additionalInfo should not contain `bytes`, as this complicates decoding
bytes additionalInfo
);
event SafeModuleTransaction(address module, address to, uint256 value, bytes data, Enum.Operation operation);
/// @dev Allows to execute a Safe transaction confirmed by required number of owners and then pays the account that submitted the transaction.
/// Note: The fees are always transferred, even if the user transaction fails.
/// @param to Destination address of Safe transaction.
/// @param value Ether value of Safe transaction.
/// @param data Data payload of Safe transaction.
/// @param operation Operation type of Safe transaction.
/// @param safeTxGas Gas that should be used for the Safe transaction.
/// @param baseGas Gas costs that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
/// @param gasPrice Gas price that should be used for the payment calculation.
/// @param gasToken Token address (or 0 if ETH) that is used for the payment.
/// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
/// @param signatures Packed signature data ({bytes32 r}{bytes32 s}{uint8 v})
function execTransaction(
address to,
uint256 value,
bytes calldata data,
Enum.Operation operation,
uint256 safeTxGas,
uint256 baseGas,
uint256 gasPrice,
address gasToken,
address payable refundReceiver,
bytes memory signatures
) public payable override returns (bool) {
bytes memory additionalInfo;
{
additionalInfo = abi.encode(nonce, msg.sender, threshold);
}
emit SafeMultiSigTransaction(
to,
value,
data,
operation,
safeTxGas,
baseGas,
gasPrice,
gasToken,
refundReceiver,
signatures,
additionalInfo
);
return super.execTransaction(to, value, data, operation, safeTxGas, baseGas, gasPrice, gasToken, refundReceiver, signatures);
}
/// @dev Allows a Module to execute a Safe transaction without any further confirmations.
/// @param to Destination address of module transaction.
/// @param value Ether value of module transaction.
/// @param data Data payload of module transaction.
/// @param operation Operation type of module transaction.
function execTransactionFromModule(
address to,
uint256 value,
bytes memory data,
Enum.Operation operation
) public override returns (bool success) {
emit SafeModuleTransaction(msg.sender, to, value, data, operation);
success = super.execTransactionFromModule(to, value, data, operation);
}
}
Contract ABI
[{"type":"event","name":"AddedOwner","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"ApproveHash","inputs":[{"type":"bytes32","name":"approvedHash","internalType":"bytes32","indexed":true},{"type":"address","name":"owner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"ChangedFallbackHandler","inputs":[{"type":"address","name":"handler","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"ChangedGuard","inputs":[{"type":"address","name":"guard","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"ChangedThreshold","inputs":[{"type":"uint256","name":"threshold","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"DisabledModule","inputs":[{"type":"address","name":"module","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"EnabledModule","inputs":[{"type":"address","name":"module","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"ExecutionFailure","inputs":[{"type":"bytes32","name":"txHash","internalType":"bytes32","indexed":false},{"type":"uint256","name":"payment","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"ExecutionFromModuleFailure","inputs":[{"type":"address","name":"module","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"ExecutionFromModuleSuccess","inputs":[{"type":"address","name":"module","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"ExecutionSuccess","inputs":[{"type":"bytes32","name":"txHash","internalType":"bytes32","indexed":false},{"type":"uint256","name":"payment","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"RemovedOwner","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"SafeModuleTransaction","inputs":[{"type":"address","name":"module","internalType":"address","indexed":false},{"type":"address","name":"to","internalType":"address","indexed":false},{"type":"uint256","name":"value","internalType":"uint256","indexed":false},{"type":"bytes","name":"data","internalType":"bytes","indexed":false},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation","indexed":false}],"anonymous":false},{"type":"event","name":"SafeMultiSigTransaction","inputs":[{"type":"address","name":"to","internalType":"address","indexed":false},{"type":"uint256","name":"value","internalType":"uint256","indexed":false},{"type":"bytes","name":"data","internalType":"bytes","indexed":false},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation","indexed":false},{"type":"uint256","name":"safeTxGas","internalType":"uint256","indexed":false},{"type":"uint256","name":"baseGas","internalType":"uint256","indexed":false},{"type":"uint256","name":"gasPrice","internalType":"uint256","indexed":false},{"type":"address","name":"gasToken","internalType":"address","indexed":false},{"type":"address","name":"refundReceiver","internalType":"address payable","indexed":false},{"type":"bytes","name":"signatures","internalType":"bytes","indexed":false},{"type":"bytes","name":"additionalInfo","internalType":"bytes","indexed":false}],"anonymous":false},{"type":"event","name":"SafeReceived","inputs":[{"type":"address","name":"sender","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"SafeSetup","inputs":[{"type":"address","name":"initiator","internalType":"address","indexed":true},{"type":"address[]","name":"owners","internalType":"address[]","indexed":false},{"type":"uint256","name":"threshold","internalType":"uint256","indexed":false},{"type":"address","name":"initializer","internalType":"address","indexed":false},{"type":"address","name":"fallbackHandler","internalType":"address","indexed":false}],"anonymous":false},{"type":"event","name":"SignMsg","inputs":[{"type":"bytes32","name":"msgHash","internalType":"bytes32","indexed":true}],"anonymous":false},{"type":"fallback","stateMutability":"nonpayable"},{"type":"function","stateMutability":"view","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"VERSION","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"addOwnerWithThreshold","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"uint256","name":"_threshold","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"approveHash","inputs":[{"type":"bytes32","name":"hashToApprove","internalType":"bytes32"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"approvedHashes","inputs":[{"type":"address","name":"","internalType":"address"},{"type":"bytes32","name":"","internalType":"bytes32"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"changeThreshold","inputs":[{"type":"uint256","name":"_threshold","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[],"name":"checkNSignatures","inputs":[{"type":"bytes32","name":"dataHash","internalType":"bytes32"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"bytes","name":"signatures","internalType":"bytes"},{"type":"uint256","name":"requiredSignatures","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[],"name":"checkSignatures","inputs":[{"type":"bytes32","name":"dataHash","internalType":"bytes32"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"bytes","name":"signatures","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"disableModule","inputs":[{"type":"address","name":"prevModule","internalType":"address"},{"type":"address","name":"module","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"domainSeparator","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"enableModule","inputs":[{"type":"address","name":"module","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"encodeTransactionData","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation"},{"type":"uint256","name":"safeTxGas","internalType":"uint256"},{"type":"uint256","name":"baseGas","internalType":"uint256"},{"type":"uint256","name":"gasPrice","internalType":"uint256"},{"type":"address","name":"gasToken","internalType":"address"},{"type":"address","name":"refundReceiver","internalType":"address"},{"type":"uint256","name":"_nonce","internalType":"uint256"}]},{"type":"function","stateMutability":"payable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"execTransaction","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation"},{"type":"uint256","name":"safeTxGas","internalType":"uint256"},{"type":"uint256","name":"baseGas","internalType":"uint256"},{"type":"uint256","name":"gasPrice","internalType":"uint256"},{"type":"address","name":"gasToken","internalType":"address"},{"type":"address","name":"refundReceiver","internalType":"address payable"},{"type":"bytes","name":"signatures","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"success","internalType":"bool"}],"name":"execTransactionFromModule","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"success","internalType":"bool"},{"type":"bytes","name":"returnData","internalType":"bytes"}],"name":"execTransactionFromModuleReturnData","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getChainId","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address[]","name":"array","internalType":"address[]"},{"type":"address","name":"next","internalType":"address"}],"name":"getModulesPaginated","inputs":[{"type":"address","name":"start","internalType":"address"},{"type":"uint256","name":"pageSize","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address[]","name":"","internalType":"address[]"}],"name":"getOwners","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes","name":"","internalType":"bytes"}],"name":"getStorageAt","inputs":[{"type":"uint256","name":"offset","internalType":"uint256"},{"type":"uint256","name":"length","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getThreshold","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"bytes32","name":"","internalType":"bytes32"}],"name":"getTransactionHash","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation"},{"type":"uint256","name":"safeTxGas","internalType":"uint256"},{"type":"uint256","name":"baseGas","internalType":"uint256"},{"type":"uint256","name":"gasPrice","internalType":"uint256"},{"type":"address","name":"gasToken","internalType":"address"},{"type":"address","name":"refundReceiver","internalType":"address"},{"type":"uint256","name":"_nonce","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isModuleEnabled","inputs":[{"type":"address","name":"module","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"isOwner","inputs":[{"type":"address","name":"owner","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"nonce","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"removeOwner","inputs":[{"type":"address","name":"prevOwner","internalType":"address"},{"type":"address","name":"owner","internalType":"address"},{"type":"uint256","name":"_threshold","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"requiredTxGas","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"uint8","name":"operation","internalType":"enum Enum.Operation"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setFallbackHandler","inputs":[{"type":"address","name":"handler","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setGuard","inputs":[{"type":"address","name":"guard","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setup","inputs":[{"type":"address[]","name":"_owners","internalType":"address[]"},{"type":"uint256","name":"_threshold","internalType":"uint256"},{"type":"address","name":"to","internalType":"address"},{"type":"bytes","name":"data","internalType":"bytes"},{"type":"address","name":"fallbackHandler","internalType":"address"},{"type":"address","name":"paymentToken","internalType":"address"},{"type":"uint256","name":"payment","internalType":"uint256"},{"type":"address","name":"paymentReceiver","internalType":"address payable"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"signedMessages","inputs":[{"type":"bytes32","name":"","internalType":"bytes32"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"simulateAndRevert","inputs":[{"type":"address","name":"targetContract","internalType":"address"},{"type":"bytes","name":"calldataPayload","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"swapOwner","inputs":[{"type":"address","name":"prevOwner","internalType":"address"},{"type":"address","name":"oldOwner","internalType":"address"},{"type":"address","name":"newOwner","internalType":"address"}]},{"type":"receive","stateMutability":"payable"}]
Contract Creation Code
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