ProxyManager

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/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "@openzeppelin/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 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 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @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.encodeCall(token.transfer, (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.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transferFrom, (from, to, 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.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @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.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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 {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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 silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}
"
    },
    "@openzeppelin/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/Address.sol)

pragma solidity ^0.8.20;

import {Errors} from "./Errors.sol";

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert Errors.InsufficientBalance(address(this).balance, amount);
        }

        (bool success, bytes memory returndata) = recipient.call{value: amount}("");
        if (!success) {
            _revert(returndata);
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {Errors.FailedCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case
     * of an unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {Errors.FailedCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}.
     */
    function _revert(bytes memory returndata) 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
            assembly ("memory-safe") {
                revert(add(returndata, 0x20), mload(returndata))
            }
        } else {
            revert Errors.FailedCall();
        }
    }
}
"
    },
    "@openzeppelin/contracts/utils/Errors.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of common custom errors used in multiple contracts
 *
 * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
 * It is recommended to avoid relying on the error API for critical functionality.
 *
 * _Available since v5.1._
 */
library Errors {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error InsufficientBalance(uint256 balance, uint256 needed);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedCall();

    /**
     * @dev The deployment failed.
     */
    error FailedDeployment();

    /**
     * @dev A necessary precompile is missing.
     */
    error MissingPrecompile(address);
}
"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
"
    },
    "@openzeppelin/contracts/utils/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @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 EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * 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;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    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
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // 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;
    }
}
"
    },
    "contracts/VaultProxy.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/Address.sol";


contract ProxyManager is ReentrancyGuard {
    using SafeERC20 for IERC20;
    using Address for address;

    address public owner;
    bool public contractPaused;
    
    // Address filter mode: false = blacklist mode (default), true = whitelist mode
    bool public useWhitelistMode;
    
    // 操作者结构体
    struct Operator {
        bool isActive;              // Whether the operator is active
        uint256 dailyLimit;         // Daily limit (wei)
        uint256 perTxLimit;         // Per transaction limit (wei)
        uint256 dailyUsed;          // Amount used today
        uint256 lastResetTime;      // Last reset time for limits
        uint256 cooldownPeriod;     // Cooldown period (seconds)
        uint256 lastOperationTime;  // Last operation time
        string description;         // Operator description
    }
    
    mapping(address => Operator) public operators;
    mapping(address => bool) public blacklist;    // Blacklist
    mapping(address => bool) public whitelist;    // Whitelist
    
    // Events
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event OperatorAdded(address indexed operator, uint256 dailyLimit, uint256 perTxLimit, string description);
    event OperatorRemoved(address indexed operator);
    event OperatorLimitsUpdated(address indexed operator, uint256 dailyLimit, uint256 perTxLimit);
    event ContractPaused(bool paused);
    event AddressAddedToBlacklist(address indexed addr);
    event AddressRemovedFromBlacklist(address indexed addr);
    event AddressAddedToWhitelist(address indexed addr);
    event AddressRemovedFromWhitelist(address indexed addr);
    event FilterModeChanged(bool useWhitelistMode);
    event TokenTransfer(address indexed operator, address indexed token, address indexed to, uint256 amount);
    event NativeTransfer(address indexed operator, address indexed to, uint256 amount);
    event EmergencyWithdraw(address indexed token, uint256 amount);
    event NativeDeposit(address indexed from, uint256 amount, string note);
    event TokenDeposit(address indexed from, address indexed token, uint256 amount, string note);
    
    constructor() {
        owner = msg.sender;
        contractPaused = false;
        useWhitelistMode = false; // Default to blacklist mode
        emit OwnershipTransferred(address(0), msg.sender);
    }
    
    // === Modifiers ===
    modifier onlyOwner() {
        require(msg.sender == owner, "Not the owner");
        _;
    }
    
    modifier onlyActiveOperator() {
        require(operators[msg.sender].isActive, "Not an active operator");
        require(!contractPaused, "Contract is paused");
        _;
    }
    
    modifier addressFilter(address target) {
        if (useWhitelistMode) {
            require(whitelist[target], "Address not in whitelist");
        } else {
            require(!blacklist[target], "Address is blacklisted");
        }
        _;
    }
    
    modifier checkLimits(uint256 amount) {
        Operator storage op = operators[msg.sender];
        
        // Reset daily limit
        if (block.timestamp >= op.lastResetTime + 1 days) {
            op.dailyUsed = 0;
            op.lastResetTime = block.timestamp;
        }
        
        // Check per-transaction limit
        require(amount <= op.perTxLimit, "Exceeds per-transaction limit");
        
        // Check daily limit
        require(op.dailyUsed + amount <= op.dailyLimit, "Exceeds daily limit");
        
        // Check cooldown period
        require(
            block.timestamp >= op.lastOperationTime + op.cooldownPeriod,
            "Operation in cooldown period"
        );
        
        _;
        
        // Update usage and operation time
        op.dailyUsed += amount;
        op.lastOperationTime = block.timestamp;
    }
    
    // === Owner functions ===
    
    // Transfer ownership
    function transferOwnership(address newOwner) external onlyOwner {
        require(newOwner != address(0), "New owner cannot be zero address");
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }
    
    // Add an operator
    function addOperator(
        address operatorAddr,
        uint256 dailyLimit,
        uint256 perTxLimit,
        uint256 cooldownPeriod,
        string memory description
    ) external onlyOwner {
        require(operatorAddr != address(0), "Operator cannot be zero address");
        require(!operators[operatorAddr].isActive, "Operator already exists");
        require(operatorAddr != owner, "Owner cannot be operator");
        require(perTxLimit <= dailyLimit, "Per-tx limit cannot exceed daily limit");
        
        operators[operatorAddr] = Operator({
            isActive: true,
            dailyLimit: dailyLimit,
            perTxLimit: perTxLimit,
            dailyUsed: 0,
            lastResetTime: block.timestamp,
            cooldownPeriod: cooldownPeriod,
            lastOperationTime: 0,
            description: description
        });
        
        emit OperatorAdded(operatorAddr, dailyLimit, perTxLimit, description);
    }
    
    // Remove an operator
    function removeOperator(address operatorAddr) external onlyOwner {
        require(operators[operatorAddr].isActive, "Operator is not active");
        delete operators[operatorAddr];
        emit OperatorRemoved(operatorAddr);
    }
    
    // Update operator limits
    function updateOperatorLimits(
        address operatorAddr,
        uint256 dailyLimit,
        uint256 perTxLimit,
        uint256 cooldownPeriod
    ) external onlyOwner {
        require(operators[operatorAddr].isActive, "Operator is not active");
        require(perTxLimit <= dailyLimit, "Per-tx limit cannot exceed daily limit");
        
        Operator storage op = operators[operatorAddr];
        op.dailyLimit = dailyLimit;
        op.perTxLimit = perTxLimit;
        op.cooldownPeriod = cooldownPeriod;
        
        emit OperatorLimitsUpdated(operatorAddr, dailyLimit, perTxLimit);
    }
    
    // Pause/Resume contract
    function setPaused(bool paused) external onlyOwner {
        contractPaused = paused;
        emit ContractPaused(paused);
    }
    
    // Switch filter mode
    function setFilterMode(bool _useWhitelistMode) external onlyOwner {
        useWhitelistMode = _useWhitelistMode;
        emit FilterModeChanged(_useWhitelistMode);
    }
    
    // Blacklist management
    function addToBlacklist(address addr) external onlyOwner {
        require(addr != owner, "Cannot blacklist owner");
        require(!whitelist[addr], "Address is whitelisted");
        if (!blacklist[addr]) {
            blacklist[addr] = true;
            emit AddressAddedToBlacklist(addr);
        }
    }
    
    function removeFromBlacklist(address addr) external onlyOwner {
        blacklist[addr] = false;
        emit AddressRemovedFromBlacklist(addr);
    }
    
    function batchAddToBlacklist(address[] memory addresses) external onlyOwner {
        for (uint256 i = 0; i < addresses.length; i++) {
            address a = addresses[i];
            require(a != owner, "Cannot blacklist owner");
            require(!whitelist[a], "Address is whitelisted");
            if (!blacklist[a]) {
                blacklist[a] = true;
                emit AddressAddedToBlacklist(a);
            }
        }
    }
    
    // Whitelist management
    function addToWhitelist(address addr) external onlyOwner {
        require(!blacklist[addr], "Address is blacklisted");
        if (!whitelist[addr]) {
            whitelist[addr] = true;
            emit AddressAddedToWhitelist(addr);
        }
    }
    
    function removeFromWhitelist(address addr) external onlyOwner {
        whitelist[addr] = false;
        emit AddressRemovedFromWhitelist(addr);
    }
    
    function batchAddToWhitelist(address[] memory addresses) external onlyOwner {
        for (uint256 i = 0; i < addresses.length; i++) {
            address a = addresses[i];
            require(!blacklist[a], "Address is blacklisted");
            if (!whitelist[a]) {
                whitelist[a] = true;
                emit AddressAddedToWhitelist(a);
            }
        }
    }
    
    // Emergency withdrawal of funds
    function emergencyWithdrawToken(address token, uint256 amount) external onlyOwner {
        require(contractPaused, "Contract must be paused for emergency withdrawal");
        
        if (token == address(0)) {
            // Withdraw Native
            require(address(this).balance >= amount, "Insufficient Native balance");
            Address.sendValue(payable(owner), amount);
        } else {
            // Withdraw ERC20 tokens
            IERC20 tokenContract = IERC20(token);
            require(tokenContract.balanceOf(address(this)) >= amount, "Insufficient token balance");
            tokenContract.safeTransfer(owner, amount);
        }
        
        emit EmergencyWithdraw(token, amount);
    }
    
    // === Operator functions ===
    
    // Transfer ERC20 tokens
    function transferToken(
        address token,
        address to,
        uint256 amount
    ) external onlyActiveOperator addressFilter(to) checkLimits(amount) nonReentrant {
        require(token != address(0), "Token address cannot be zero");
        require(to != address(0), "Recipient cannot be zero address");
        require(amount > 0, "Amount must be greater than zero");
        
        IERC20 tokenContract = IERC20(token);
        require(tokenContract.balanceOf(address(this)) >= amount, "Insufficient token balance");
        tokenContract.safeTransfer(to, amount);
        emit TokenTransfer(msg.sender, token, to, amount);
    }
    
    // Transfer Native
    function transferNative(
        address payable to,
        uint256 amount
    ) external onlyActiveOperator addressFilter(to) checkLimits(amount) nonReentrant {
        require(to != address(0), "Recipient cannot be zero address");
        require(amount > 0, "Amount must be greater than zero");
        require(address(this).balance >= amount, "Insufficient Native balance");
        
        Address.sendValue(to, amount);
        emit NativeTransfer(msg.sender, to, amount);
    }
    
    // Batch transfer ERC20
    function batchTransferToken(
        address token,
        address[] memory recipients,
        uint256[] memory amounts
    ) external onlyActiveOperator nonReentrant {
        require(recipients.length == amounts.length, "Arrays length mismatch");
        require(recipients.length > 0, "Empty arrays");
        
        uint256 totalAmount = 0;
        for (uint256 i = 0; i < amounts.length; i++) {
            totalAmount += amounts[i];
        }
        
        // Check total amount limit
        _checkLimitsInternal(totalAmount);
        
        IERC20 tokenContract = IERC20(token);
        require(tokenContract.balanceOf(address(this)) >= totalAmount, "Insufficient token balance");
        
        for (uint256 i = 0; i < recipients.length; i++) {
            require(recipients[i] != address(0), "Recipient cannot be zero address");
            require(amounts[i] > 0, "Amount must be greater than zero");
            
            // Check address filter
            if (useWhitelistMode) {
                require(whitelist[recipients[i]], "Address not in whitelist");
            } else {
                require(!blacklist[recipients[i]], "Address is blacklisted");
            }
            
            tokenContract.safeTransfer(recipients[i], amounts[i]);

            emit TokenTransfer(msg.sender, token, recipients[i], amounts[i]);
        }
        
        // Update operator status
        Operator storage op = operators[msg.sender];
        op.dailyUsed += totalAmount;
        op.lastOperationTime = block.timestamp;
    }
    
    // Internal function: check limits
    function _checkLimitsInternal(uint256 amount) private {
        Operator storage op = operators[msg.sender];
        
        // Reset daily limit
        if (block.timestamp >= op.lastResetTime + 1 days) {
            op.dailyUsed = 0;
            op.lastResetTime = block.timestamp;
        }
        
        require(amount <= op.perTxLimit, "Exceeds per-transaction limit");
        require(op.dailyUsed + amount <= op.dailyLimit, "Exceeds daily limit");
        require(
            block.timestamp >= op.lastOperationTime + op.cooldownPeriod,
            "Operation in cooldown period"
        );
    }
    
    // === Query functions ===
    
    // Get operator information
    function getOperatorInfo(address operatorAddr) external view returns (
        bool isActive,
        uint256 dailyLimit,
        uint256 perTxLimit,
        uint256 dailyUsed,
        uint256 remainingDaily,
        uint256 cooldownPeriod,
        uint256 remainingCooldown,
        string memory description
    ) {
        Operator memory op = operators[operatorAddr];
        
        // Calculate remaining daily limit
        uint256 currentDailyUsed = op.dailyUsed;
        if (block.timestamp >= op.lastResetTime + 1 days) {
            currentDailyUsed = 0;
        }
        
        uint256 remaining = op.dailyLimit > currentDailyUsed ? 
            op.dailyLimit - currentDailyUsed : 0;
        
        // Calculate remaining cooldown time
        uint256 remainingCool = 0;
        if (op.lastOperationTime > 0) {
            uint256 nextAvailable = op.lastOperationTime + op.cooldownPeriod;
            if (block.timestamp < nextAvailable) {
                remainingCool = nextAvailable - block.timestamp;
            }
        }
        
        return (
            op.isActive,
            op.dailyLimit,
            op.perTxLimit,
            currentDailyUsed,
            remaining,
            op.cooldownPeriod,
            remainingCool,
            op.description
        );
    }
    
    // Check if address is allowed
    function isAddressAllowed(address addr) external view returns (bool) {
        if (useWhitelistMode) {
            return whitelist[addr];
        } else {
            return !blacklist[addr];
        }
    }
    
    // Get contract status
    function getContractStatus() external view returns (
        bool paused,
        bool whitelistMode,
        uint256 nativeBalance,
        address contractOwner
    ) {
        return (contractPaused, useWhitelistMode, address(this).balance, owner);
    }
    
    function depositNativeWithNote(string calldata note) external payable nonReentrant {
    require(msg.value > 0, "No native value sent");
    emit NativeDeposit(msg.sender, msg.value, note);
}

    function depositTokenWithNote(
        address token,
        uint256 amount,
        string calldata note
    ) external nonReentrant {
        require(token != address(0), "Token address cannot be zero");
        require(amount > 0, "Amount must be greater than zero");

        IERC20 tokenContract = IERC20(token);
        tokenContract.safeTransferFrom(msg.sender, address(this), amount);

        emit TokenDeposit(msg.sender, token, amount, note);
    }
    
    // === Receive Native ===
    receive() external payable {}
    fallback() external payable {}
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}

Tags:
ERC20, ERC165, Proxy, Upgradeable, Factory|addr:0x8430faf4e87577526a01adff1b57f048465a2953|verified:true|block:23706177|tx:0x0a64faf31518a453f9aecbba8336809dd2ec6e972a382b689a70d6c387f94356|first_check:1762024222

Submitted on: 2025-11-01 20:10:23

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