Description:
Proxy contract enabling upgradeable smart contract patterns. Delegates calls to an implementation contract.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{{
"language": "Solidity",
"sources": {
"@openzeppelin/contracts/security/ReentrancyGuard.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
}
"
},
"@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*
* ==== Security Considerations
*
* There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
* expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
* considered as an intention to spend the allowance in any specific way. The second is that because permits have
* built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
* take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
* generally recommended is:
*
* ```solidity
* function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
* try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
* doThing(..., value);
* }
*
* function doThing(..., uint256 value) public {
* token.safeTransferFrom(msg.sender, address(this), value);
* ...
* }
* ```
*
* Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
* `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
* {SafeERC20-safeTransferFrom}).
*
* Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
* contracts should have entry points that don't rely on permit.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*
* CAUTION: See Security Considerations above.
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
"
},
"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
* to be set to zero before setting it to a non-zero value, such as USDT.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}
"
},
"@openzeppelin/contracts/utils/Address.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
"
},
"contracts/common/UniversalWithdrawal.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.22;
import {Address} from "@openzeppelin/contracts/utils/Address.sol";
import {SafeERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {LibErrors} from "../utils/LibErrors.sol";
import {LibTransferType} from "../utils/LibTransferType.sol";
import {IEvents} from "../utils/IEvents.sol";
/**
* @title UniversalWithdrawal
* @dev Logic contract that allows withdrawal and transfers of ERC20 tokens and Ether.
* Includes functionality for safe transfers, batch transfers, and withdrawals.
* The owner and factory can interact with it for various operations.
*/
contract UniversalWithdrawal is ReentrancyGuard, IEvents {
using Address for address;
using Address for address payable;
using SafeERC20 for IERC20;
/**
* @notice Fallback function to receive ETH.
* @dev Emits a `Received` event for logging received ETH.
*/
receive() external payable {
emit Received(msg.sender, msg.value);
}
/**
* @notice Transfers tokens or Ether to the specified address.
* @param token The address of the token (use address(0) for Ether).
* @param to The address of the recipient.
* @param amount The amount of tokens or Ether to transfer.
* @param transferType The type of transfer (normal, safe, or custom).
* @dev This function requires the caller to be the owner.
*/
function universalTransfer(
address token,
address to,
uint256 amount,
LibTransferType.TransferType transferType
) external nonReentrant returns (bool) {
if (token == address(0)) {
if (amount == 0 || to == address(0)) revert LibErrors.InvalidTransferParameters();
payable(to).sendValue(amount);
} else {
_sendERC20Funds(token, to, amount, transferType);
}
emit Withdrawn(token, to, amount);
return true;
}
/**
* @notice Withdraws ETH to multiple recipients.
* @param recipients Array of recipient addresses.
* @param amounts Array of amounts to send to each recipient.
*/
function withdraw(
address payable[] calldata recipients,
uint256[] calldata amounts
) external nonReentrant returns (bool) {
uint256 length = recipients.length;
if (length == 0) revert LibErrors.ArrayRecipientsCantBeZero();
if (length != amounts.length) revert LibErrors.ArrayLengthMismatch();
for (uint256 i = 0; i < length; ) {
uint256 amount = amounts[i];
uint256 contractBalance = address(this).balance;
if (contractBalance < amount) revert LibErrors.InsufficientBalance(contractBalance, amount);
address payable recipient = recipients[i];
if (recipient == address(0)) revert LibErrors.InvalidAddressRecipient();
recipient.sendValue(amount);
emit Withdrawn(address(0), recipient, amount);
unchecked {
++i;
}
}
return true;
}
/**
* @notice Performs a custom ERC20 withdrawal to the recipient.
* @param token The token to withdraw.
* @param recipient The address to send the tokens to.
* @param amount The amount of tokens to withdraw.
* @param transferType Type of transfer to use
* @dev Can only be called by the owner.
*/
function withdrawERC20(
address token,
address recipient,
uint256 amount,
LibTransferType.TransferType transferType
) external nonReentrant returns (bool) {
_sendERC20Funds(token, recipient, amount, transferType);
emit Withdrawn(token, recipient, amount);
return true;
}
/// @dev Sends ERC20 tokens to the recipient using the specified transfer type
/// @param token ERC20 token address
/// @param to Recipient address
/// @param amount Amount of tokens to send
/// @param transferType Type of transfer to use
function _sendERC20Funds(
address token,
address to,
uint256 amount,
LibTransferType.TransferType transferType
) internal {
if (transferType == LibTransferType.TransferType.Transfer) {
if (!IERC20(token).transfer(to, amount)) revert LibErrors.TokenTransferFailed1();
} else if (transferType == LibTransferType.TransferType.SafeTransfer) {
IERC20(token).safeTransfer(to, amount);
} else if (transferType == LibTransferType.TransferType.UnsafeTransferNoCheckBool) {
(bool success, bytes memory result) = token.call(
abi.encodeWithSignature("transfer(address,uint256)", to, amount)
);
if (!success) revert LibErrors.TokenTransferFailed2();
if (result.length == 0) revert LibErrors.TokenTransferFailed3();
} else if (transferType == LibTransferType.TransferType.UnsafeTransferNoCheckResultLength) {
// Only checks that the low-level call succeeded — does not inspect returned data
(bool success, ) = token.call(abi.encodeWithSignature("transfer(address,uint256)", to, amount));
if (!success) revert LibErrors.TokenTransferFailed2();
} else {
revert LibErrors.UnsupportedTransferType();
}
}
// /**
// * @notice Withdraws multiple ERC20 tokens to multiple recipients.
// * @param tokens Array of token addresses.
// * @param recipients Array of recipient addresses.
// * @param amounts Array of amounts to withdraw for each token.
// */
// function withdrawManyERC20(
// address[] calldata tokens,
// address[] calldata recipients,
// uint256[] calldata amounts
// ) external nonReentrant returns (bool) {
// uint256 length = tokens.length;
// if (length != recipients.length || length != amounts.length) revert LibErrors.ArrayLengthMismatch();
// for (uint256 i = 0; i < length; ) {
// address token = tokens[i];
// uint256 amount = amounts[i];
// if (!_withdrawERC20(token, recipients[i], amount)) revert LibErrors.WithdrawERC20Failed(token, amount);
// emit Withdrawn(token, recipients[i], amount);
// unchecked {
// ++i;
// }
// }
// return true;
// }
// /**
// * @notice Internal function to withdraw ERC20 tokens.
// * @param token The address of the token to withdraw.
// * @param to The recipient address.
// * @param amount The amount to withdraw.
// * @return success True if the withdrawal was successful.
// */
// function _withdrawERC20(address token, address to, uint256 amount) private returns (bool) {
// if (token == address(0)) revert LibErrors.InvalidAddressToken();
// if (to == address(0)) revert LibErrors.InvalidAddressRecipient();
// (bool success, bytes memory result) = token.call(
// abi.encodeWithSignature("transfer(address,uint256)", to, amount)
// );
// return success && (result.length == 0 || abi.decode(result, (bool)));
// }
}
"
},
"contracts/utils/IEvents.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.22;
/**
* @title IEvents
* @dev This library defines events used across the system for logging key actions and changes.
*/
interface IEvents {
/**
* @notice Emitted when the admin system is initialized.
* @param owner The address of the owner.
* @param factory The address of the factory contract.
* @param withdrawal The address of the withdrawals contract for proxy.
*/
event AdminInitialized(address indexed owner, address indexed factory, address indexed withdrawal);
/**
* @notice Emitted when an account's admin status is changed.
* @param account The address of the account whose status is changed.
* @param status The new admin status (true = granted, false = revoked).
*/
event AdminStatusChanged(address indexed account, bool status);
/**
* @notice Emitted when a new clone contract is created.
* @param clone The address of the newly created clone contract.
* @param withdrawal The withdrawal address used by the clone.
* @param owner The owner of the clone.
*/
event CloneCreated(address indexed clone, address indexed withdrawal, address indexed owner);
/**
* @notice Emitted when a specific field is updated.
* @param field The updated field (e.g., "Factory" or "Withdrawal").
* @param oldValue The old address value of the field.
* @param newValue The new address value of the field.
*/
event FieldUpdated(bytes32 field, address indexed oldValue, address indexed newValue);
/**
* @notice Emitted when the contract receives ETH.
* @param sender The address that sent the ETH.
* @param amount The amount of ETH received.
*/
event Received(address indexed sender, uint256 indexed amount);
/**
* @notice Emitted when a proxy contract is initialized.
* @param proxy The address of the proxy contract.
* @param withdrawal The withdrawal address used by the proxy.
* @param owner The owner of the proxy.
*/
event ProxyInitialized(address indexed proxy, address indexed withdrawal, address indexed owner);
/**
* @notice Emitted when the factory address is updated.
* @param oldFactory The previous factory address.
* @param newFactory The new factory address.
*/
event UpdateFactory(address indexed oldFactory, address indexed newFactory);
/**
* @notice Emitted when a withdrawal is made from the contract.
* @param token The address of the token being withdrawn (address(0) for ETH).
* @param recipient The address receiving the withdrawn funds.
* @param amount The amount withdrawn.
*/
event Withdrawn(address indexed token, address indexed recipient, uint256 indexed amount);
/**
* @notice Emitted when the withdrawal address is updated.
* @param old The previous withdrawal address.
* @param newWithdrawal The new withdrawal address.
*/
event WithdrawalUpdated(address indexed old, address indexed newWithdrawal);
}
"
},
"contracts/utils/LibErrors.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.22;
/**
* @title LibErrors
* @dev This library defines custom errors used across the system, grouped by category for better organization.
*/
library LibErrors {
// ========================
// System errors
// ========================
error Revert43();
// ========================
// Address-related errors
// ========================
/**
* @notice Thrown when an invalid admin address is provided.
*/
error InvalidAddressAdmin();
/**
* @notice Thrown when an invalid clone address is provided.
*/
error InvalidAddressClone();
/**
* @notice Thrown when an invalid factory address is provided.
*/
error InvalidAddressFactory();
/**
* @notice Thrown when an invalid field address is provided.
*/
error InvalidAddressField();
/**
* @notice Thrown when an invalid owner address is provided.
*/
error InvalidAddressOwner();
/**
* @notice Thrown when an invalid recipient address is provided.
*/
error InvalidAddressRecipient();
/**
* @notice Thrown when an invalid token address is provided.
*/
error InvalidAddressToken();
/**
* @notice Thrown when an invalid withdrawal address is provided.
*/
error InvalidAddressWithdrawal();
// ========================
// Access control errors
// ========================
/**
* @notice Thrown when the caller is not an admin.
*/
error OnlyAdmin(address caller);
/**
* @notice Thrown when the caller is not the factory.
*/
error OnlyFactory(address caller);
/**
* @notice Thrown when the caller is not the owner.
*/
error OnlyOwner(address caller);
/**
* @notice Thrown when attempting to remove the owner as an admin.
*/
error CannotRemoveOwner();
// ========================
// Array-related errors
// ========================
/**
* @notice Thrown when the length of two arrays does not match.
*/
error ArrayLengthMismatch();
/**
* @notice Thrown when the array of accounts is empty.
*/
error ArrayAccountsCantBeZero();
/**
* @notice Thrown when the array of recipients is empty.
*/
error ArrayRecipientsCantBeZero();
// ========================
// Token and amount errors
// ========================
/**
* @notice Thrown when the amount is zero or less.
*/
error AmountMustBeGreaterThanZero();
/**
* @dev Error to be thrown when transfer parameters are invalid, such as zero amount or invalid address.
*/
error InvalidTransferParameters();
/**
* @notice Thrown when the token amounts provided are zero.
*/
error TokenAmountsCantBeZero();
/**
* @notice Thrown when the transfer type is unsupported.
*/
error UnsupportedTransferType();
/**
* @notice Thrown when the transfer type is TransferType.Transfer and not returns true
*/
error TokenTransferFailed1();
/**
* @notice Thrown when the transfer type is TransferType.UnsafeTransferNoCheckBool
or UnsafeTransferNoCheckResultLength and not return true
*/
error TokenTransferFailed2();
/**
* @notice Thrown when the transfer type is TransferType.UnsafeTransferNoCheckBool and result length is not 0
*/
error TokenTransferFailed3();
/**
* @notice Thrown when the universal transfer fails.
*/
error UniversalTransferFailed(address token, address to, uint256 amount);
/**
* @notice Thrown when a withdrawal fails.
*/
error WithdrawFailed(address recipient, uint256 amount);
// ========================
// Clone-related errors
// ========================
/**
* @notice Thrown when no clones are provided.
*/
error NoClonesProvided();
/**
* @notice Thrown when the number of clones and amounts does not match.
*/
error ClonesNotEqualAmounts();
/**
* @notice Thrown when the creation of a proxy contract fails.
*/
error CreatedProxyFailed();
/**
* @notice Thrown when the creation of a clone contract fails.
*/
error CreatedCloneFailed();
// ========================
// General errors
// ========================
/**
* @notice Thrown when an invalid field is provided.
*/
error InvalidField(bytes32 provided);
/**
* @notice Thrown when there is an insufficient balance for an operation.
*/
error InsufficientBalance(uint256 balance, uint256 required);
/**
* @notice Thrown when withdrawal amounts do not match the expected total.
*/
error WithdrawalNotEqual();
}
"
},
"contracts/utils/LibTransferType.sol": {
"content": "// TransferTypeLib.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.22;
library LibTransferType {
/// @notice Enum for transfer types.
enum TransferType {
Transfer, // = 0 - Standard ERC20 transfer (returns bool)
SafeTransfer, // = 1 - OpenZeppelin SafeERC20 safeTransfer. Should prefer use this for most tokens
UnsafeTransferNoCheckBool, // = 2 - For tokens like USDT TRC20 that do not return a boolean
UnsafeTransferNoCheckResultLength // = 3 If token not returns any value in transfer method.
// WARNING: NoCheckResultLength transfer will NOT fail even if transfer method or contract not exist!
}
}
"
}
},
"settings": {
"optimizer": {
"enabled": true,
"runs": 200
},
"evmVersion": "paris",
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"metadata": {
"useLiteralContent": true
}
}
}}
Submitted on: 2025-10-01 17:19:53
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