Description:
Multi-signature wallet contract requiring multiple confirmations for transaction execution.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{{
"language": "Solidity",
"sources": {
"contracts/legacy/AddressManager.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;
import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
/**
* @custom:legacy
* @title AddressManager
* @notice AddressManager is a legacy contract that was used in the old version of the Optimism
* system to manage a registry of string names to addresses. We now use a more standard
* proxy system instead, but this contract is still necessary for backwards compatibility
* with several older contracts.
*/
contract AddressManager is Ownable {
/**
* @notice Mapping of the hashes of string names to addresses.
*/
mapping(bytes32 => address) private addresses;
/**
* @notice Emitted when an address is modified in the registry.
*
* @param name String name being set in the registry.
* @param newAddress Address set for the given name.
* @param oldAddress Address that was previously set for the given name.
*/
event AddressSet(string indexed name, address newAddress, address oldAddress);
/**
* @notice Changes the address associated with a particular name.
*
* @param _name String name to associate an address with.
* @param _address Address to associate with the name.
*/
function setAddress(string memory _name, address _address) external onlyOwner {
bytes32 nameHash = _getNameHash(_name);
address oldAddress = addresses[nameHash];
addresses[nameHash] = _address;
emit AddressSet(_name, _address, oldAddress);
}
/**
* @notice Retrieves the address associated with a given name.
*
* @param _name Name to retrieve an address for.
*
* @return Address associated with the given name.
*/
function getAddress(string memory _name) external view returns (address) {
return addresses[_getNameHash(_name)];
}
/**
* @notice Computes the hash of a name.
*
* @param _name Name to compute a hash for.
*
* @return Hash of the given name.
*/
function _getNameHash(string memory _name) internal pure returns (bytes32) {
return keccak256(abi.encodePacked(_name));
}
}
"
},
"contracts/legacy/L1ChugSplashProxy.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;
/**
* @title IL1ChugSplashDeployer
*/
interface IL1ChugSplashDeployer {
function isUpgrading() external view returns (bool);
}
/**
* @custom:legacy
* @title L1ChugSplashProxy
* @notice Basic ChugSplash proxy contract for L1. Very close to being a normal proxy but has added
* functions `setCode` and `setStorage` for changing the code or storage of the contract.
*
* Note for future developers: do NOT make anything in this contract 'public' unless you
* know what you're doing. Anything public can potentially have a function signature that
* conflicts with a signature attached to the implementation contract. Public functions
* SHOULD always have the `proxyCallIfNotOwner` modifier unless there's some *really* good
* reason not to have that modifier. And there almost certainly is not a good reason to not
* have that modifier. Beware!
*/
contract L1ChugSplashProxy {
/**
* @notice "Magic" prefix. When prepended to some arbitrary bytecode and used to create a
* contract, the appended bytecode will be deployed as given.
*/
bytes13 internal constant DEPLOY_CODE_PREFIX = 0x600D380380600D6000396000f3;
/**
* @notice bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
*/
bytes32 internal constant IMPLEMENTATION_KEY =
0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @notice bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1)
*/
bytes32 internal constant OWNER_KEY =
0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @notice Blocks a function from being called when the parent signals that the system should
* be paused via an isUpgrading function.
*/
modifier onlyWhenNotPaused() {
address owner = _getOwner();
// We do a low-level call because there's no guarantee that the owner actually *is* an
// L1ChugSplashDeployer contract and Solidity will throw errors if we do a normal call and
// it turns out that it isn't the right type of contract.
(bool success, bytes memory returndata) = owner.staticcall(
abi.encodeWithSelector(IL1ChugSplashDeployer.isUpgrading.selector)
);
// If the call was unsuccessful then we assume that there's no "isUpgrading" method and we
// can just continue as normal. We also expect that the return value is exactly 32 bytes
// long. If this isn't the case then we can safely ignore the result.
if (success && returndata.length == 32) {
// Although the expected value is a *boolean*, it's safer to decode as a uint256 in the
// case that the isUpgrading function returned something other than 0 or 1. But we only
// really care about the case where this value is 0 (= false).
uint256 ret = abi.decode(returndata, (uint256));
require(ret == 0, "L1ChugSplashProxy: system is currently being upgraded");
}
_;
}
/**
* @notice Makes a proxy call instead of triggering the given function when the caller is
* either the owner or the zero address. Caller can only ever be the zero address if
* this function is being called off-chain via eth_call, which is totally fine and can
* be convenient for client-side tooling. Avoids situations where the proxy and
* implementation share a sighash and the proxy function ends up being called instead
* of the implementation one.
*
* Note: msg.sender == address(0) can ONLY be triggered off-chain via eth_call. If
* there's a way for someone to send a transaction with msg.sender == address(0) in any
* real context then we have much bigger problems. Primary reason to include this
* additional allowed sender is because the owner address can be changed dynamically
* and we do not want clients to have to keep track of the current owner in order to
* make an eth_call that doesn't trigger the proxied contract.
*/
// slither-disable-next-line incorrect-modifier
modifier proxyCallIfNotOwner() {
if (msg.sender == _getOwner() || msg.sender == address(0)) {
_;
} else {
// This WILL halt the call frame on completion.
_doProxyCall();
}
}
/**
* @param _owner Address of the initial contract owner.
*/
constructor(address _owner) {
_setOwner(_owner);
}
// slither-disable-next-line locked-ether
receive() external payable {
// Proxy call by default.
_doProxyCall();
}
// slither-disable-next-line locked-ether
fallback() external payable {
// Proxy call by default.
_doProxyCall();
}
/**
* @notice Sets the code that should be running behind this proxy.
*
* Note: This scheme is a bit different from the standard proxy scheme where one would
* typically deploy the code separately and then set the implementation address. We're
* doing it this way because it gives us a lot more freedom on the client side. Can
* only be triggered by the contract owner.
*
* @param _code New contract code to run inside this contract.
*/
function setCode(bytes memory _code) external proxyCallIfNotOwner {
// Get the code hash of the current implementation.
address implementation = _getImplementation();
// If the code hash matches the new implementation then we return early.
if (keccak256(_code) == _getAccountCodeHash(implementation)) {
return;
}
// Create the deploycode by appending the magic prefix.
bytes memory deploycode = abi.encodePacked(DEPLOY_CODE_PREFIX, _code);
// Deploy the code and set the new implementation address.
address newImplementation;
assembly {
newImplementation := create(0x0, add(deploycode, 0x20), mload(deploycode))
}
// Check that the code was actually deployed correctly. I'm not sure if you can ever
// actually fail this check. Should only happen if the contract creation from above runs
// out of gas but this parent execution thread does NOT run out of gas. Seems like we
// should be doing this check anyway though.
require(
_getAccountCodeHash(newImplementation) == keccak256(_code),
"L1ChugSplashProxy: code was not correctly deployed"
);
_setImplementation(newImplementation);
}
/**
* @notice Modifies some storage slot within the proxy contract. Gives us a lot of power to
* perform upgrades in a more transparent way. Only callable by the owner.
*
* @param _key Storage key to modify.
* @param _value New value for the storage key.
*/
function setStorage(bytes32 _key, bytes32 _value) external proxyCallIfNotOwner {
assembly {
sstore(_key, _value)
}
}
/**
* @notice Changes the owner of the proxy contract. Only callable by the owner.
*
* @param _owner New owner of the proxy contract.
*/
function setOwner(address _owner) external proxyCallIfNotOwner {
_setOwner(_owner);
}
/**
* @notice Queries the owner of the proxy contract. Can only be called by the owner OR by
* making an eth_call and setting the "from" address to address(0).
*
* @return Owner address.
*/
function getOwner() external proxyCallIfNotOwner returns (address) {
return _getOwner();
}
/**
* @notice Queries the implementation address. Can only be called by the owner OR by making an
* eth_call and setting the "from" address to address(0).
*
* @return Implementation address.
*/
function getImplementation() external proxyCallIfNotOwner returns (address) {
return _getImplementation();
}
/**
* @notice Sets the implementation address.
*
* @param _implementation New implementation address.
*/
function _setImplementation(address _implementation) internal {
assembly {
sstore(IMPLEMENTATION_KEY, _implementation)
}
}
/**
* @notice Changes the owner of the proxy contract.
*
* @param _owner New owner of the proxy contract.
*/
function _setOwner(address _owner) internal {
assembly {
sstore(OWNER_KEY, _owner)
}
}
/**
* @notice Performs the proxy call via a delegatecall.
*/
function _doProxyCall() internal onlyWhenNotPaused {
address implementation = _getImplementation();
require(implementation != address(0), "L1ChugSplashProxy: implementation is not set yet");
assembly {
// Copy calldata into memory at 0x0....calldatasize.
calldatacopy(0x0, 0x0, calldatasize())
// Perform the delegatecall, make sure to pass all available gas.
let success := delegatecall(gas(), implementation, 0x0, calldatasize(), 0x0, 0x0)
// Copy returndata into memory at 0x0....returndatasize. Note that this *will*
// overwrite the calldata that we just copied into memory but that doesn't really
// matter because we'll be returning in a second anyway.
returndatacopy(0x0, 0x0, returndatasize())
// Success == 0 means a revert. We'll revert too and pass the data up.
if iszero(success) {
revert(0x0, returndatasize())
}
// Otherwise we'll just return and pass the data up.
return(0x0, returndatasize())
}
}
/**
* @notice Queries the implementation address.
*
* @return Implementation address.
*/
function _getImplementation() internal view returns (address) {
address implementation;
assembly {
implementation := sload(IMPLEMENTATION_KEY)
}
return implementation;
}
/**
* @notice Queries the owner of the proxy contract.
*
* @return Owner address.
*/
function _getOwner() internal view returns (address) {
address owner;
assembly {
owner := sload(OWNER_KEY)
}
return owner;
}
/**
* @notice Gets the code hash for a given account.
*
* @param _account Address of the account to get a code hash for.
*
* @return Code hash for the account.
*/
function _getAccountCodeHash(address _account) internal view returns (bytes32) {
bytes32 codeHash;
assembly {
codeHash := extcodehash(_account)
}
return codeHash;
}
}
"
},
"contracts/universal/Proxy.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;
/**
* @title Proxy
* @notice Proxy is a transparent proxy that passes through the call if the caller is the owner or
* if the caller is address(0), meaning that the call originated from an off-chain
* simulation.
*/
contract Proxy {
/**
* @notice The storage slot that holds the address of the implementation.
* bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
*/
bytes32 internal constant IMPLEMENTATION_KEY =
0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
/**
* @notice The storage slot that holds the address of the owner.
* bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1)
*/
bytes32 internal constant OWNER_KEY =
0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
/**
* @notice An event that is emitted each time the implementation is changed. This event is part
* of the EIP-1967 specification.
*
* @param implementation The address of the implementation contract
*/
event Upgraded(address indexed implementation);
/**
* @notice An event that is emitted each time the owner is upgraded. This event is part of the
* EIP-1967 specification.
*
* @param previousAdmin The previous owner of the contract
* @param newAdmin The new owner of the contract
*/
event AdminChanged(address previousAdmin, address newAdmin);
/**
* @notice A modifier that reverts if not called by the owner or by address(0) to allow
* eth_call to interact with this proxy without needing to use low-level storage
* inspection. We assume that nobody is able to trigger calls from address(0) during
* normal EVM execution.
*/
modifier proxyCallIfNotAdmin() {
if (msg.sender == _getAdmin() || msg.sender == address(0)) {
_;
} else {
// This WILL halt the call frame on completion.
_doProxyCall();
}
}
/**
* @notice Sets the initial admin during contract deployment. Admin address is stored at the
* EIP-1967 admin storage slot so that accidental storage collision with the
* implementation is not possible.
*
* @param _admin Address of the initial contract admin. Admin as the ability to access the
* transparent proxy interface.
*/
constructor(address _admin) {
_changeAdmin(_admin);
}
// slither-disable-next-line locked-ether
receive() external payable {
// Proxy call by default.
_doProxyCall();
}
// slither-disable-next-line locked-ether
fallback() external payable {
// Proxy call by default.
_doProxyCall();
}
/**
* @notice Set the implementation contract address. The code at the given address will execute
* when this contract is called.
*
* @param _implementation Address of the implementation contract.
*/
function upgradeTo(address _implementation) public virtual proxyCallIfNotAdmin {
_setImplementation(_implementation);
}
/**
* @notice Set the implementation and call a function in a single transaction. Useful to ensure
* atomic execution of initialization-based upgrades.
*
* @param _implementation Address of the implementation contract.
* @param _data Calldata to delegatecall the new implementation with.
*/
function upgradeToAndCall(address _implementation, bytes calldata _data)
public
payable
virtual
proxyCallIfNotAdmin
returns (bytes memory)
{
_setImplementation(_implementation);
(bool success, bytes memory returndata) = _implementation.delegatecall(_data);
require(success, "Proxy: delegatecall to new implementation contract failed");
return returndata;
}
/**
* @notice Changes the owner of the proxy contract. Only callable by the owner.
*
* @param _admin New owner of the proxy contract.
*/
function changeAdmin(address _admin) public virtual proxyCallIfNotAdmin {
_changeAdmin(_admin);
}
/**
* @notice Gets the owner of the proxy contract.
*
* @return Owner address.
*/
function admin() public virtual proxyCallIfNotAdmin returns (address) {
return _getAdmin();
}
/**
* @notice Queries the implementation address.
*
* @return Implementation address.
*/
function implementation() public virtual proxyCallIfNotAdmin returns (address) {
return _getImplementation();
}
/**
* @notice Sets the implementation address.
*
* @param _implementation New implementation address.
*/
function _setImplementation(address _implementation) internal {
assembly {
sstore(IMPLEMENTATION_KEY, _implementation)
}
emit Upgraded(_implementation);
}
/**
* @notice Changes the owner of the proxy contract.
*
* @param _admin New owner of the proxy contract.
*/
function _changeAdmin(address _admin) internal {
address previous = _getAdmin();
assembly {
sstore(OWNER_KEY, _admin)
}
emit AdminChanged(previous, _admin);
}
/**
* @notice Performs the proxy call via a delegatecall.
*/
function _doProxyCall() internal {
address impl = _getImplementation();
require(impl != address(0), "Proxy: implementation not initialized");
assembly {
// Copy calldata into memory at 0x0....calldatasize.
calldatacopy(0x0, 0x0, calldatasize())
// Perform the delegatecall, make sure to pass all available gas.
let success := delegatecall(gas(), impl, 0x0, calldatasize(), 0x0, 0x0)
// Copy returndata into memory at 0x0....returndatasize. Note that this *will*
// overwrite the calldata that we just copied into memory but that doesn't really
// matter because we'll be returning in a second anyway.
returndatacopy(0x0, 0x0, returndatasize())
// Success == 0 means a revert. We'll revert too and pass the data up.
if iszero(success) {
revert(0x0, returndatasize())
}
// Otherwise we'll just return and pass the data up.
return(0x0, returndatasize())
}
}
/**
* @notice Queries the implementation address.
*
* @return Implementation address.
*/
function _getImplementation() internal view returns (address) {
address impl;
assembly {
impl := sload(IMPLEMENTATION_KEY)
}
return impl;
}
/**
* @notice Queries the owner of the proxy contract.
*
* @return Owner address.
*/
function _getAdmin() internal view returns (address) {
address owner;
assembly {
owner := sload(OWNER_KEY)
}
return owner;
}
}
"
},
"contracts/universal/ProxyAdmin.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity 0.8.15;
import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { Proxy } from "./Proxy.sol";
import { AddressManager } from "../legacy/AddressManager.sol";
import { L1ChugSplashProxy } from "../legacy/L1ChugSplashProxy.sol";
/**
* @title IStaticERC1967Proxy
* @notice IStaticERC1967Proxy is a static version of the ERC1967 proxy interface.
*/
interface IStaticERC1967Proxy {
function implementation() external view returns (address);
function admin() external view returns (address);
}
/**
* @title IStaticL1ChugSplashProxy
* @notice IStaticL1ChugSplashProxy is a static version of the ChugSplash proxy interface.
*/
interface IStaticL1ChugSplashProxy {
function getImplementation() external view returns (address);
function getOwner() external view returns (address);
}
/**
* @title ProxyAdmin
* @notice This is an auxiliary contract meant to be assigned as the admin of an ERC1967 Proxy,
* based on the OpenZeppelin implementation. It has backwards compatibility logic to work
* with the various types of proxies that have been deployed by Optimism in the past.
*/
contract ProxyAdmin is Ownable {
/**
* @notice The proxy types that the ProxyAdmin can manage.
*
* @custom:value ERC1967 Represents an ERC1967 compliant transparent proxy interface.
* @custom:value CHUGSPLASH Represents the Chugsplash proxy interface (legacy).
* @custom:value RESOLVED Represents the ResolvedDelegate proxy (legacy).
*/
enum ProxyType {
ERC1967,
CHUGSPLASH,
RESOLVED
}
/**
* @notice A mapping of proxy types, used for backwards compatibility.
*/
mapping(address => ProxyType) public proxyType;
/**
* @notice A reverse mapping of addresses to names held in the AddressManager. This must be
* manually kept up to date with changes in the AddressManager for this contract
* to be able to work as an admin for the ResolvedDelegateProxy type.
*/
mapping(address => string) public implementationName;
/**
* @notice The address of the address manager, this is required to manage the
* ResolvedDelegateProxy type.
*/
AddressManager public addressManager;
/**
* @notice A legacy upgrading indicator used by the old Chugsplash Proxy.
*/
bool internal upgrading;
/**
* @param _owner Address of the initial owner of this contract.
*/
constructor(address _owner) Ownable() {
_transferOwnership(_owner);
}
/**
* @notice Sets the proxy type for a given address. Only required for non-standard (legacy)
* proxy types.
*
* @param _address Address of the proxy.
* @param _type Type of the proxy.
*/
function setProxyType(address _address, ProxyType _type) external onlyOwner {
proxyType[_address] = _type;
}
/**
* @notice Sets the implementation name for a given address. Only required for
* ResolvedDelegateProxy type proxies that have an implementation name.
*
* @param _address Address of the ResolvedDelegateProxy.
* @param _name Name of the implementation for the proxy.
*/
function setImplementationName(address _address, string memory _name) external onlyOwner {
implementationName[_address] = _name;
}
/**
* @notice Set the address of the AddressManager. This is required to manage legacy
* ResolvedDelegateProxy type proxy contracts.
*
* @param _address Address of the AddressManager.
*/
function setAddressManager(AddressManager _address) external onlyOwner {
addressManager = _address;
}
/**
* @custom:legacy
* @notice Set an address in the address manager. Since only the owner of the AddressManager
* can directly modify addresses and the ProxyAdmin will own the AddressManager, this
* gives the owner of the ProxyAdmin the ability to modify addresses directly.
*
* @param _name Name to set within the AddressManager.
* @param _address Address to attach to the given name.
*/
function setAddress(string memory _name, address _address) external onlyOwner {
addressManager.setAddress(_name, _address);
}
/**
* @custom:legacy
* @notice Set the upgrading status for the Chugsplash proxy type.
*
* @param _upgrading Whether or not the system is upgrading.
*/
function setUpgrading(bool _upgrading) external onlyOwner {
upgrading = _upgrading;
}
/**
* @custom:legacy
* @notice Legacy function used to tell ChugSplashProxy contracts if an upgrade is happening.
*
* @return Whether or not there is an upgrade going on. May not actually tell you whether an
* upgrade is going on, since we don't currently plan to use this variable for anything
* other than a legacy indicator to fix a UX bug in the ChugSplash proxy.
*/
function isUpgrading() external view returns (bool) {
return upgrading;
}
/**
* @notice Returns the implementation of the given proxy address.
*
* @param _proxy Address of the proxy to get the implementation of.
*
* @return Address of the implementation of the proxy.
*/
function getProxyImplementation(address _proxy) external view returns (address) {
ProxyType ptype = proxyType[_proxy];
if (ptype == ProxyType.ERC1967) {
return IStaticERC1967Proxy(_proxy).implementation();
} else if (ptype == ProxyType.CHUGSPLASH) {
return IStaticL1ChugSplashProxy(_proxy).getImplementation();
} else if (ptype == ProxyType.RESOLVED) {
return addressManager.getAddress(implementationName[_proxy]);
} else {
revert("ProxyAdmin: unknown proxy type");
}
}
/**
* @notice Returns the admin of the given proxy address.
*
* @param _proxy Address of the proxy to get the admin of.
*
* @return Address of the admin of the proxy.
*/
function getProxyAdmin(address payable _proxy) external view returns (address) {
ProxyType ptype = proxyType[_proxy];
if (ptype == ProxyType.ERC1967) {
return IStaticERC1967Proxy(_proxy).admin();
} else if (ptype == ProxyType.CHUGSPLASH) {
return IStaticL1ChugSplashProxy(_proxy).getOwner();
} else if (ptype == ProxyType.RESOLVED) {
return addressManager.owner();
} else {
revert("ProxyAdmin: unknown proxy type");
}
}
/**
* @notice Updates the admin of the given proxy address.
*
* @param _proxy Address of the proxy to update.
* @param _newAdmin Address of the new proxy admin.
*/
function changeProxyAdmin(address payable _proxy, address _newAdmin) external onlyOwner {
ProxyType ptype = proxyType[_proxy];
if (ptype == ProxyType.ERC1967) {
Proxy(_proxy).changeAdmin(_newAdmin);
} else if (ptype == ProxyType.CHUGSPLASH) {
L1ChugSplashProxy(_proxy).setOwner(_newAdmin);
} else if (ptype == ProxyType.RESOLVED) {
addressManager.transferOwnership(_newAdmin);
} else {
revert("ProxyAdmin: unknown proxy type");
}
}
/**
* @notice Changes a proxy's implementation contract.
*
* @param _proxy Address of the proxy to upgrade.
* @param _implementation Address of the new implementation address.
*/
function upgrade(address payable _proxy, address _implementation) public onlyOwner {
ProxyType ptype = proxyType[_proxy];
if (ptype == ProxyType.ERC1967) {
Proxy(_proxy).upgradeTo(_implementation);
} else if (ptype == ProxyType.CHUGSPLASH) {
L1ChugSplashProxy(_proxy).setStorage(
// bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc,
bytes32(uint256(uint160(_implementation)))
);
} else if (ptype == ProxyType.RESOLVED) {
string memory name = implementationName[_proxy];
addressManager.setAddress(name, _implementation);
} else {
// It should not be possible to retrieve a ProxyType value which is not matched by
// one of the previous conditions.
assert(false);
}
}
/**
* @notice Changes a proxy's implementation contract and delegatecalls the new implementation
* with some given data. Useful for atomic upgrade-and-initialize calls.
*
* @param _proxy Address of the proxy to upgrade.
* @param _implementation Address of the new implementation address.
* @param _data Data to trigger the new implementation with.
*/
function upgradeAndCall(
address payable _proxy,
address _implementation,
bytes memory _data
) external payable onlyOwner {
ProxyType ptype = proxyType[_proxy];
if (ptype == ProxyType.ERC1967) {
Proxy(_proxy).upgradeToAndCall{ value: msg.value }(_implementation, _data);
} else {
// reverts if proxy type is unknown
upgrade(_proxy, _implementation);
(bool success, ) = _proxy.call{ value: msg.value }(_data);
require(success, "ProxyAdmin: call to proxy after upgrade failed");
}
}
}
"
},
"node_modules/@openzeppelin/contracts/access/Ownable.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
"
},
"node_modules/@openzeppelin/contracts/utils/Context.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
"
}
},
"settings": {
"remappings": [
"@openzeppelin/=node_modules/@openzeppelin/",
"@openzeppelin/contracts-upgradeable/=node_modules/@openzeppelin/contracts-upgradeable/",
"@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/",
"@rari-capital/=node_modules/@rari-capital/",
"@rari-capital/solmate/=node_modules/@rari-capital/solmate/",
"ds-test/=node_modules/ds-test/src/",
"forge-std/=node_modules/forge-std/src/"
],
"optimizer": {
"enabled": true,
"runs": 999999
},
"metadata": {
"bytecodeHash": "none"
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"evmVersion": "london",
"libraries": {}
}
}}
Submitted on: 2025-09-18 12:21:44
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