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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

import "../../interfaces/IValidations.sol";
import "../base/SignatureManager.sol";
import "../base/ModuleManager.sol";
import "../base/OwnerManager.sol";
import "../base/FallbackManager.sol";
import "../base/GuardManager.sol";
import "../common/EtherPaymentFallback.sol";
import "../common/Singleton.sol";
import "../common/SignatureDecoder.sol";
import "../common/SecuredTokenTransfer.sol";

contract SmartAccountV2 is
    EtherPaymentFallback,
    Singleton,
    ModuleManager,
    OwnerManager,
    SignatureDecoder,
    SecuredTokenTransfer,
    FallbackManager,
    GuardManager,
    SignatureManager
{
    IValidations public immutable VALIDATIONS;
    address public immutable FALLBACKHANDLER;

    constructor(
        address _entryPoint,
        address _fallbackHandler,
        address _validations,
        string memory _name,
        string memory _version
    ) SignatureManager(_entryPoint, _name, _version) {
        FALLBACKHANDLER = _fallbackHandler;
        VALIDATIONS = IValidations(_validations);
    }

    modifier onlyEntryPoint() {
        require(msg.sender == address(entryPoint()), "Not from entrypoint");
        _;
    }

    modifier onlyWhiteListedBundler() {
        VALIDATIONS.validateBundlerWhiteList(tx.origin);
        _;
    }

    modifier onlyWhiteListedModule() {
        VALIDATIONS.validateModuleWhitelist(msg.sender);
        _;
    }

    function initialize(
        address creator,
        bytes memory /* place holder for future */
    ) external {
        require(getOwner() == address(0), "account: have set up");
        // set creator as owner by default.
        initializeOwners(creator);
        initializeFallbackHandler(FALLBACKHANDLER);
        initializeModules();
    }

    function nonce() public view virtual returns (uint256) {
        return ENTRYPOINT.getNonce(address(this), 0);
    }

    function validateUserOp(
        UserOperation calldata userOp,
        bytes32 userOpHash,
        uint256 missingAccountFunds
    )
        public
        override
        onlyEntryPoint
        onlyWhiteListedBundler
        returns (uint256 validationData)
    {
        validationData = super.validateUserOp(
            userOp,
            userOpHash,
            missingAccountFunds
        );
    }

    function execTransactionFromEntrypoint(
        address to,
        uint256 value,
        bytes calldata data
    ) public onlyEntryPoint {
        executeWithGuard(to, value, data);
    }

    function execTransactionFromEntrypointBatch(
        ExecuteParams[] calldata _params
    ) external onlyEntryPoint {
        executeWithGuardBatch(_params);
    }

    function execTransactionFromEntrypointBatchRevertOnFail(
        ExecuteParams[] calldata _params
    ) external onlyEntryPoint {
        execTransactionBatchRevertOnFail(_params);
    }

    function execTransactionFromModule(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation
    ) public override onlyWhiteListedModule {
        if (operation == Enum.Operation.Call) {
            ModuleManager.execTransactionFromModule(to, value, data, operation);
        } else {
            address originalFallbackHandler = getFallbackHandler();

            setFallbackHandler(msg.sender, true);
            ModuleManager.execTransactionFromModule(to, value, data, operation);
            setFallbackHandler(originalFallbackHandler, false);
        }
    }
}

// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

/* solhint-disable avoid-low-level-calls */
/* solhint-disable no-empty-blocks */

import "../interfaces/IAccount.sol";
import "../interfaces/IEntryPoint.sol";
import "./Helpers.sol";

/**
 * Basic account implementation.
 * this contract provides the basic logic for implementing the IAccount interface  - validateUserOp
 * specific account implementation should inherit it and provide the account-specific logic
 */
abstract contract BaseAccount is IAccount {
    using UserOperationLib for UserOperation;

    //return value in case of signature failure, with no time-range.
    // equivalent to _packValidationData(true,0,0);
    uint256 constant internal SIG_VALIDATION_FAILED = 1;

    /**
     * Return the account nonce.
     * This method returns the next sequential nonce.
     * For a nonce of a specific key, use `entrypoint.getNonce(account, key)`
     */
    function getNonce() public view virtual returns (uint256) {
        return entryPoint().getNonce(address(this), 0);
    }

    /**
     * return the entryPoint used by this account.
     * subclass should return the current entryPoint used by this account.
     */
    function entryPoint() public view virtual returns (IEntryPoint);

    /**
     * Validate user's signature and nonce.
     * subclass doesn't need to override this method. Instead, it should override the specific internal validation methods.
     */
    function validateUserOp(UserOperation calldata userOp, bytes32 userOpHash, uint256 missingAccountFunds)
    external override virtual returns (uint256 validationData) {
        _requireFromEntryPoint();
        validationData = _validateSignature(userOp, userOpHash);
        _validateNonce(userOp.nonce);
        _payPrefund(missingAccountFunds);
    }

    /**
     * ensure the request comes from the known entrypoint.
     */
    function _requireFromEntryPoint() internal virtual view {
        require(msg.sender == address(entryPoint()), "account: not from EntryPoint");
    }

    /**
     * validate the signature is valid for this message.
     * @param userOp validate the userOp.signature field
     * @param userOpHash convenient field: the hash of the request, to check the signature against
     *          (also hashes the entrypoint and chain id)
     * @return validationData signature and time-range of this operation
     *      <20-byte> sigAuthorizer - 0 for valid signature, 1 to mark signature failure,
     *         otherwise, an address of an "authorizer" contract.
     *      <6-byte> validUntil - last timestamp this operation is valid. 0 for "indefinite"
     *      <6-byte> validAfter - first timestamp this operation is valid
     *      If the account doesn't use time-range, it is enough to return SIG_VALIDATION_FAILED value (1) for signature failure.
     *      Note that the validation code cannot use block.timestamp (or block.number) directly.
     */
    function _validateSignature(UserOperation calldata userOp, bytes32 userOpHash)
    internal virtual returns (uint256 validationData);

    /**
     * Validate the nonce of the UserOperation.
     * This method may validate the nonce requirement of this account.
     * e.g.
     * To limit the nonce to use sequenced UserOps only (no "out of order" UserOps):
     *      `require(nonce < type(uint64).max)`
     * For a hypothetical account that *requires* the nonce to be out-of-order:
     *      `require(nonce & type(uint64).max == 0)`
     *
     * The actual nonce uniqueness is managed by the EntryPoint, and thus no other
     * action is needed by the account itself.
     *
     * @param nonce to validate
     *
     * solhint-disable-next-line no-empty-blocks
     */
    function _validateNonce(uint256 nonce) internal view virtual {
    }

    /**
     * sends to the entrypoint (msg.sender) the missing funds for this transaction.
     * subclass MAY override this method for better funds management
     * (e.g. send to the entryPoint more than the minimum required, so that in future transactions
     * it will not be required to send again)
     * @param missingAccountFunds the minimum value this method should send the entrypoint.
     *  this value MAY be zero, in case there is enough deposit, or the userOp has a paymaster.
     */
    function _payPrefund(uint256 missingAccountFunds) internal virtual {
        if (missingAccountFunds != 0) {
            (bool success,) = payable(msg.sender).call{value : missingAccountFunds, gas : type(uint256).max}("");
            (success);
            //ignore failure (its EntryPoint's job to verify, not account.)
        }
    }
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

/* solhint-disable no-inline-assembly */

/**
 * returned data from validateUserOp.
 * validateUserOp returns a uint256, with is created by `_packedValidationData` and parsed by `_parseValidationData`
 * @param aggregator - address(0) - the account validated the signature by itself.
 *              address(1) - the account failed to validate the signature.
 *              otherwise - this is an address of a signature aggregator that must be used to validate the signature.
 * @param validAfter - this UserOp is valid only after this timestamp.
 * @param validaUntil - this UserOp is valid only up to this timestamp.
 */
    struct ValidationData {
        address aggregator;
        uint48 validAfter;
        uint48 validUntil;
    }

//extract sigFailed, validAfter, validUntil.
// also convert zero validUntil to type(uint48).max
    function _parseValidationData(uint validationData) pure returns (ValidationData memory data) {
        address aggregator = address(uint160(validationData));
        uint48 validUntil = uint48(validationData >> 160);
        if (validUntil == 0) {
            validUntil = type(uint48).max;
        }
        uint48 validAfter = uint48(validationData >> (48 + 160));
        return ValidationData(aggregator, validAfter, validUntil);
    }

// intersect account and paymaster ranges.
    function _intersectTimeRange(uint256 validationData, uint256 paymasterValidationData) pure returns (ValidationData memory) {
        ValidationData memory accountValidationData = _parseValidationData(validationData);
        ValidationData memory pmValidationData = _parseValidationData(paymasterValidationData);
        address aggregator = accountValidationData.aggregator;
        if (aggregator == address(0)) {
            aggregator = pmValidationData.aggregator;
        }
        uint48 validAfter = accountValidationData.validAfter;
        uint48 validUntil = accountValidationData.validUntil;
        uint48 pmValidAfter = pmValidationData.validAfter;
        uint48 pmValidUntil = pmValidationData.validUntil;

        if (validAfter < pmValidAfter) validAfter = pmValidAfter;
        if (validUntil > pmValidUntil) validUntil = pmValidUntil;
        return ValidationData(aggregator, validAfter, validUntil);
    }

/**
 * helper to pack the return value for validateUserOp
 * @param data - the ValidationData to pack
 */
    function _packValidationData(ValidationData memory data) pure returns (uint256) {
        return uint160(data.aggregator) | (uint256(data.validUntil) << 160) | (uint256(data.validAfter) << (160 + 48));
    }

/**
 * helper to pack the return value for validateUserOp, when not using an aggregator
 * @param sigFailed - true for signature failure, false for success
 * @param validUntil last timestamp this UserOperation is valid (or zero for infinite)
 * @param validAfter first timestamp this UserOperation is valid
 */
    function _packValidationData(bool sigFailed, uint48 validUntil, uint48 validAfter) pure returns (uint256) {
        return (sigFailed ? 1 : 0) | (uint256(validUntil) << 160) | (uint256(validAfter) << (160 + 48));
    }

/**
 * keccak function over calldata.
 * @dev copy calldata into memory, do keccak and drop allocated memory. Strangely, this is more efficient than letting solidity do it.
 */
    function calldataKeccak(bytes calldata data) pure returns (bytes32 ret) {
        assembly {
            let mem := mload(0x40)
            let len := data.length
            calldatacopy(mem, data.offset, len)
            ret := keccak256(mem, len)
        }
    }

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

import "./UserOperation.sol";

interface IAccount {

    /**
     * Validate user's signature and nonce
     * the entryPoint will make the call to the recipient only if this validation call returns successfully.
     * signature failure should be reported by returning SIG_VALIDATION_FAILED (1).
     * This allows making a "simulation call" without a valid signature
     * Other failures (e.g. nonce mismatch, or invalid signature format) should still revert to signal failure.
     *
     * @dev Must validate caller is the entryPoint.
     *      Must validate the signature and nonce
     * @param userOp the operation that is about to be executed.
     * @param userOpHash hash of the user's request data. can be used as the basis for signature.
     * @param missingAccountFunds missing funds on the account's deposit in the entrypoint.
     *      This is the minimum amount to transfer to the sender(entryPoint) to be able to make the call.
     *      The excess is left as a deposit in the entrypoint, for future calls.
     *      can be withdrawn anytime using "entryPoint.withdrawTo()"
     *      In case there is a paymaster in the request (or the current deposit is high enough), this value will be zero.
     * @return validationData packaged ValidationData structure. use `_packValidationData` and `_unpackValidationData` to encode and decode
     *      <20-byte> sigAuthorizer - 0 for valid signature, 1 to mark signature failure,
     *         otherwise, an address of an "authorizer" contract.
     *      <6-byte> validUntil - last timestamp this operation is valid. 0 for "indefinite"
     *      <6-byte> validAfter - first timestamp this operation is valid
     *      If an account doesn't use time-range, it is enough to return SIG_VALIDATION_FAILED value (1) for signature failure.
     *      Note that the validation code cannot use block.timestamp (or block.number) directly.
     */
    function validateUserOp(UserOperation calldata userOp, bytes32 userOpHash, uint256 missingAccountFunds)
    external returns (uint256 validationData);
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

import "./UserOperation.sol";

/**
 * Aggregated Signatures validator.
 */
interface IAggregator {

    /**
     * validate aggregated signature.
     * revert if the aggregated signature does not match the given list of operations.
     */
    function validateSignatures(UserOperation[] calldata userOps, bytes calldata signature) external view;

    /**
     * validate signature of a single userOp
     * This method is should be called by bundler after EntryPoint.simulateValidation() returns (reverts) with ValidationResultWithAggregation
     * First it validates the signature over the userOp. Then it returns data to be used when creating the handleOps.
     * @param userOp the userOperation received from the user.
     * @return sigForUserOp the value to put into the signature field of the userOp when calling handleOps.
     *    (usually empty, unless account and aggregator support some kind of "multisig"
     */
    function validateUserOpSignature(UserOperation calldata userOp)
    external view returns (bytes memory sigForUserOp);

    /**
     * aggregate multiple signatures into a single value.
     * This method is called off-chain to calculate the signature to pass with handleOps()
     * bundler MAY use optimized custom code perform this aggregation
     * @param userOps array of UserOperations to collect the signatures from.
     * @return aggregatedSignature the aggregated signature
     */
    function aggregateSignatures(UserOperation[] calldata userOps) external view returns (bytes memory aggregatedSignature);
}

/**
 ** Account-Abstraction (EIP-4337) singleton EntryPoint implementation.
 ** Only one instance required on each chain.
 **/
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

/* solhint-disable avoid-low-level-calls */
/* solhint-disable no-inline-assembly */
/* solhint-disable reason-string */

import "./UserOperation.sol";
import "./IStakeManager.sol";
import "./IAggregator.sol";
import "./INonceManager.sol";

interface IEntryPoint is IStakeManager, INonceManager {

    /***
     * An event emitted after each successful request
     * @param userOpHash - unique identifier for the request (hash its entire content, except signature).
     * @param sender - the account that generates this request.
     * @param paymaster - if non-null, the paymaster that pays for this request.
     * @param nonce - the nonce value from the request.
     * @param success - true if the sender transaction succeeded, false if reverted.
     * @param actualGasCost - actual amount paid (by account or paymaster) for this UserOperation.
     * @param actualGasUsed - total gas used by this UserOperation (including preVerification, creation, validation and execution).
     */
    event UserOperationEvent(bytes32 indexed userOpHash, address indexed sender, address indexed paymaster, uint256 nonce, bool success, uint256 actualGasCost, uint256 actualGasUsed);

    /**
     * account "sender" was deployed.
     * @param userOpHash the userOp that deployed this account. UserOperationEvent will follow.
     * @param sender the account that is deployed
     * @param factory the factory used to deploy this account (in the initCode)
     * @param paymaster the paymaster used by this UserOp
     */
    event AccountDeployed(bytes32 indexed userOpHash, address indexed sender, address factory, address paymaster);

    /**
     * An event emitted if the UserOperation "callData" reverted with non-zero length
     * @param userOpHash the request unique identifier.
     * @param sender the sender of this request
     * @param nonce the nonce used in the request
     * @param revertReason - the return bytes from the (reverted) call to "callData".
     */
    event UserOperationRevertReason(bytes32 indexed userOpHash, address indexed sender, uint256 nonce, bytes revertReason);

    /**
     * an event emitted by handleOps(), before starting the execution loop.
     * any event emitted before this event, is part of the validation.
     */
    event BeforeExecution();

    /**
     * signature aggregator used by the following UserOperationEvents within this bundle.
     */
    event SignatureAggregatorChanged(address indexed aggregator);

    /**
     * a custom revert error of handleOps, to identify the offending op.
     *  NOTE: if simulateValidation passes successfully, there should be no reason for handleOps to fail on it.
     *  @param opIndex - index into the array of ops to the failed one (in simulateValidation, this is always zero)
     *  @param reason - revert reason
     *      The string starts with a unique code "AAmn", where "m" is "1" for factory, "2" for account and "3" for paymaster issues,
     *      so a failure can be attributed to the correct entity.
     *   Should be caught in off-chain handleOps simulation and not happen on-chain.
     *   Useful for mitigating DoS attempts against batchers or for troubleshooting of factory/account/paymaster reverts.
     */
    error FailedOp(uint256 opIndex, string reason);

    /**
     * error case when a signature aggregator fails to verify the aggregated signature it had created.
     */
    error SignatureValidationFailed(address aggregator);

    /**
     * Successful result from simulateValidation.
     * @param returnInfo gas and time-range returned values
     * @param senderInfo stake information about the sender
     * @param factoryInfo stake information about the factory (if any)
     * @param paymasterInfo stake information about the paymaster (if any)
     */
    error ValidationResult(ReturnInfo returnInfo,
        StakeInfo senderInfo, StakeInfo factoryInfo, StakeInfo paymasterInfo);

    /**
     * Successful result from simulateValidation, if the account returns a signature aggregator
     * @param returnInfo gas and time-range returned values
     * @param senderInfo stake information about the sender
     * @param factoryInfo stake information about the factory (if any)
     * @param paymasterInfo stake information about the paymaster (if any)
     * @param aggregatorInfo signature aggregation info (if the account requires signature aggregator)
     *      bundler MUST use it to verify the signature, or reject the UserOperation
     */
    error ValidationResultWithAggregation(ReturnInfo returnInfo,
        StakeInfo senderInfo, StakeInfo factoryInfo, StakeInfo paymasterInfo,
        AggregatorStakeInfo aggregatorInfo);

    /**
     * return value of getSenderAddress
     */
    error SenderAddressResult(address sender);

    /**
     * return value of simulateHandleOp
     */
    error ExecutionResult(uint256 preOpGas, uint256 paid, uint48 validAfter, uint48 validUntil, bool targetSuccess, bytes targetResult);

    //UserOps handled, per aggregator
    struct UserOpsPerAggregator {
        UserOperation[] userOps;

        // aggregator address
        IAggregator aggregator;
        // aggregated signature
        bytes signature;
    }

    /**
     * Execute a batch of UserOperation.
     * no signature aggregator is used.
     * if any account requires an aggregator (that is, it returned an aggregator when
     * performing simulateValidation), then handleAggregatedOps() must be used instead.
     * @param ops the operations to execute
     * @param beneficiary the address to receive the fees
     */
    function handleOps(UserOperation[] calldata ops, address payable beneficiary) external;

    /**
     * Execute a batch of UserOperation with Aggregators
     * @param opsPerAggregator the operations to execute, grouped by aggregator (or address(0) for no-aggregator accounts)
     * @param beneficiary the address to receive the fees
     */
    function handleAggregatedOps(
        UserOpsPerAggregator[] calldata opsPerAggregator,
        address payable beneficiary
    ) external;

    /**
     * generate a request Id - unique identifier for this request.
     * the request ID is a hash over the content of the userOp (except the signature), the entrypoint and the chainid.
     */
    function getUserOpHash(UserOperation calldata userOp) external view returns (bytes32);

    /**
     * Simulate a call to account.validateUserOp and paymaster.validatePaymasterUserOp.
     * @dev this method always revert. Successful result is ValidationResult error. other errors are failures.
     * @dev The node must also verify it doesn't use banned opcodes, and that it doesn't reference storage outside the account's data.
     * @param userOp the user operation to validate.
     */
    function simulateValidation(UserOperation calldata userOp) external;

    /**
     * gas and return values during simulation
     * @param preOpGas the gas used for validation (including preValidationGas)
     * @param prefund the required prefund for this operation
     * @param sigFailed validateUserOp's (or paymaster's) signature check failed
     * @param validAfter - first timestamp this UserOp is valid (merging account and paymaster time-range)
     * @param validUntil - last timestamp this UserOp is valid (merging account and paymaster time-range)
     * @param paymasterContext returned by validatePaymasterUserOp (to be passed into postOp)
     */
    struct ReturnInfo {
        uint256 preOpGas;
        uint256 prefund;
        bool sigFailed;
        uint48 validAfter;
        uint48 validUntil;
        bytes paymasterContext;
    }

    /**
     * returned aggregated signature info.
     * the aggregator returned by the account, and its current stake.
     */
    struct AggregatorStakeInfo {
        address aggregator;
        StakeInfo stakeInfo;
    }

    /**
     * Get counterfactual sender address.
     *  Calculate the sender contract address that will be generated by the initCode and salt in the UserOperation.
     * this method always revert, and returns the address in SenderAddressResult error
     * @param initCode the constructor code to be passed into the UserOperation.
     */
    function getSenderAddress(bytes memory initCode) external;


    /**
     * simulate full execution of a UserOperation (including both validation and target execution)
     * this method will always revert with "ExecutionResult".
     * it performs full validation of the UserOperation, but ignores signature error.
     * an optional target address is called after the userop succeeds, and its value is returned
     * (before the entire call is reverted)
     * Note that in order to collect the the success/failure of the target call, it must be executed
     * with trace enabled to track the emitted events.
     * @param op the UserOperation to simulate
     * @param target if nonzero, a target address to call after userop simulation. If called, the targetSuccess and targetResult
     *        are set to the return from that call.
     * @param targetCallData callData to pass to target address
     */
    function simulateHandleOp(UserOperation calldata op, address target, bytes calldata targetCallData) external;
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

interface INonceManager {

    /**
     * Return the next nonce for this sender.
     * Within a given key, the nonce values are sequenced (starting with zero, and incremented by one on each userop)
     * But UserOp with different keys can come with arbitrary order.
     *
     * @param sender the account address
     * @param key the high 192 bit of the nonce
     * @return nonce a full nonce to pass for next UserOp with this sender.
     */
    function getNonce(address sender, uint192 key)
    external view returns (uint256 nonce);

    /**
     * Manually increment the nonce of the sender.
     * This method is exposed just for completeness..
     * Account does NOT need to call it, neither during validation, nor elsewhere,
     * as the EntryPoint will update the nonce regardless.
     * Possible use-case is call it with various keys to "initialize" their nonces to one, so that future
     * UserOperations will not pay extra for the first transaction with a given key.
     */
    function incrementNonce(uint192 key) external;
}

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.12;

/**
 * manage deposits and stakes.
 * deposit is just a balance used to pay for UserOperations (either by a paymaster or an account)
 * stake is value locked for at least "unstakeDelay" by the staked entity.
 */
interface IStakeManager {

    event Deposited(
        address indexed account,
        uint256 totalDeposit
    );

    event Withdrawn(
        address indexed account,
        address withdrawAddress,
        uint256 amount
    );

    /// Emitted when stake or unstake delay are modified
    event StakeLocked(
        address indexed account,
        uint256 totalStaked,
        uint256 unstakeDelaySec
    );

    /// Emitted once a stake is scheduled for withdrawal
    event StakeUnlocked(
        address indexed account,
        uint256 withdrawTime
    );

    event StakeWithdrawn(
        address indexed account,
        address withdrawAddress,
        uint256 amount
    );

    /**
     * @param deposit the entity's deposit
     * @param staked true if this entity is staked.
     * @param stake actual amount of ether staked for this entity.
     * @param unstakeDelaySec minimum delay to withdraw the stake.
     * @param withdrawTime - first block timestamp where 'withdrawStake' will be callable, or zero if already locked
     * @dev sizes were chosen so that (deposit,staked, stake) fit into one cell (used during handleOps)
     *    and the rest fit into a 2nd cell.
     *    112 bit allows for 10^15 eth
     *    48 bit for full timestamp
     *    32 bit allows 150 years for unstake delay
     */
    struct DepositInfo {
        uint112 deposit;
        bool staked;
        uint112 stake;
        uint32 unstakeDelaySec;
        uint48 withdrawTime;
    }

    //API struct used by getStakeInfo and simulateValidation
    struct StakeInfo {
        uint256 stake;
        uint256 unstakeDelaySec;
    }

    /// @return info - full deposit information of given account
    function getDepositInfo(address account) external view returns (DepositInfo memory info);

    /// @return the deposit (for gas payment) of the account
    function balanceOf(address account) external view returns (uint256);

    /**
     * add to the deposit of the given account
     */
    function depositTo(address account) external payable;

    /**
     * add to the account's stake - amount and delay
     * any pending unstake is first cancelled.
     * @param _unstakeDelaySec the new lock duration before the deposit can be withdrawn.
     */
    function addStake(uint32 _unstakeDelaySec) external payable;

    /**
     * attempt to unlock the stake.
     * the value can be withdrawn (using withdrawStake) after the unstake delay.
     */
    function unlockStake() external;

    /**
     * withdraw from the (unlocked) stake.
     * must first call unlockStake and wait for the unstakeDelay to pass
     * @param withdrawAddress the address to send withdrawn value.
     */
    function withdrawStake(address payable withdrawAddress) external;

    /**
     * withdraw from the deposit.
     * @param withdrawAddress the address to send withdrawn value.
     * @param withdrawAmount the amount to withdraw.
     */
    function withdrawTo(address payable withdrawAddress, uint256 withdrawAmount) external;
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

/* solhint-disable no-inline-assembly */

import {calldataKeccak} from "../core/Helpers.sol";

/**
 * User Operation struct
 * @param sender the sender account of this request.
     * @param nonce unique value the sender uses to verify it is not a replay.
     * @param initCode if set, the account contract will be created by this constructor/
     * @param callData the method call to execute on this account.
     * @param callGasLimit the gas limit passed to the callData method call.
     * @param verificationGasLimit gas used for validateUserOp and validatePaymasterUserOp.
     * @param preVerificationGas gas not calculated by the handleOps method, but added to the gas paid. Covers batch overhead.
     * @param maxFeePerGas same as EIP-1559 gas parameter.
     * @param maxPriorityFeePerGas same as EIP-1559 gas parameter.
     * @param paymasterAndData if set, this field holds the paymaster address and paymaster-specific data. the paymaster will pay for the transaction instead of the sender.
     * @param signature sender-verified signature over the entire request, the EntryPoint address and the chain ID.
     */
    struct UserOperation {

        address sender;
        uint256 nonce;
        bytes initCode;
        bytes callData;
        uint256 callGasLimit;
        uint256 verificationGasLimit;
        uint256 preVerificationGas;
        uint256 maxFeePerGas;
        uint256 maxPriorityFeePerGas;
        bytes paymasterAndData;
        bytes signature;
    }

/**
 * Utility functions helpful when working with UserOperation structs.
 */
library UserOperationLib {

    function getSender(UserOperation calldata userOp) internal pure returns (address) {
        address data;
        //read sender from userOp, which is first userOp member (saves 800 gas...)
        assembly {data := calldataload(userOp)}
        return address(uint160(data));
    }

    //relayer/block builder might submit the TX with higher priorityFee, but the user should not
    // pay above what he signed for.
    function gasPrice(UserOperation calldata userOp) internal view returns (uint256) {
    unchecked {
        uint256 maxFeePerGas = userOp.maxFeePerGas;
        uint256 maxPriorityFeePerGas = userOp.maxPriorityFeePerGas;
        if (maxFeePerGas == maxPriorityFeePerGas) {
            //legacy mode (for networks that don't support basefee opcode)
            return maxFeePerGas;
        }
        return min(maxFeePerGas, maxPriorityFeePerGas + block.basefee);
    }
    }

    function pack(UserOperation calldata userOp) internal pure returns (bytes memory ret) {
        address sender = getSender(userOp);
        uint256 nonce = userOp.nonce;
        bytes32 hashInitCode = calldataKeccak(userOp.initCode);
        bytes32 hashCallData = calldataKeccak(userOp.callData);
        uint256 callGasLimit = userOp.callGasLimit;
        uint256 verificationGasLimit = userOp.verificationGasLimit;
        uint256 preVerificationGas = userOp.preVerificationGas;
        uint256 maxFeePerGas = userOp.maxFeePerGas;
        uint256 maxPriorityFeePerGas = userOp.maxPriorityFeePerGas;
        bytes32 hashPaymasterAndData = calldataKeccak(userOp.paymasterAndData);

        return abi.encode(
            sender, nonce,
            hashInitCode, hashCallData,
            callGasLimit, verificationGasLimit, preVerificationGas,
            maxFeePerGas, maxPriorityFeePerGas,
            hashPaymasterAndData
        );
    }

    function hash(UserOperation calldata userOp) internal pure returns (bytes32) {
        return keccak256(pack(userOp));
    }

    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

interface IValidations {
    struct bundlerInformation {
        address bundler;
        uint256 registeTime;
    }
    event UnrestrictedBundlerSet(bool allowed);
    event UnrestrictedModuleSet(bool allowed);
    event WalletFactoryWhitelistSet(address walletProxyFactory);
    event BundlerWhitelistSet(address indexed bundler, bool allowed);
    event ModuleWhitelistSet(address indexed module, bool allowed);

    function officialBundlerWhiteList(
        address bundler
    ) external view returns (bool);

    function moduleWhiteList(address module) external view returns (bool);

    function setUnrestrictedBundler(bool allowed) external;

    function setUnrestrictedModule(bool allowed) external;

    function setBundlerOfficialWhitelist(
        address bundler,
        bool allowed
    ) external;

    function setWalletProxyFactoryWhitelist(address walletFactory) external;

    function setModuleWhitelist(address module, bool allowed) external;

    function validateBundlerWhiteList(address bundler) external view;

    function validateModuleWhitelist(address module) external;
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;
import "../common/Enum.sol";

/// @title Executor - A contract that can execute transactions
contract Executor {
    struct ExecuteParams {
        bool allowFailed;
        address to;
        uint256 value;
        bytes data;
        bytes nestedCalls; // ExecuteParams encoded as bytes
    }

    event HandleSuccessExternalCalls();
    event HandleFailedExternalCalls(bytes revertReason);

    function execute(
        ExecuteParams memory params,
        Enum.Operation operation,
        uint256 txGas
    ) internal returns (bool success) {
        bytes memory result;

        if (operation == Enum.Operation.DelegateCall) {
            // solhint-disable-next-line no-inline-assembly
            (success, result) = params.to.delegatecall{gas: txGas}(params.data);
        } else {
            // solhint-disable-next-line no-inline-assembly
            (success, result) = payable(params.to).call{
                gas: txGas,
                value: params.value
            }(params.data);
        }

        if (!success) {
            if (!params.allowFailed) {
                assembly {
                    revert(add(result, 32), mload(result))
                }
            }
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

import "../common/SelfAuthorized.sol";

/// @title Fallback Manager - A contract that manages fallback calls made to this contract
contract FallbackManager is SelfAuthorized {
    event ChangedFallbackHandler(address handler);

    // keccak256("fallback_manager.handler.address")
    bytes32 internal constant FALLBACK_HANDLER_STORAGE_SLOT =
        0x6c9a6c4a39284e37ed1cf53d337577d14212a4870fb976a4366c693b939918d5;

    function getFallbackHandler()
        public
        view
        returns (address fallbackHandler)
    {
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let encoded := sload(slot)
            fallbackHandler := shr(96, encoded)
        }
    }

    /// @dev Allows to add a contract to handle fallback calls.
    ///      Only fallback calls without value and with data will be forwarded.
    ///      This can only be done via a Safe transaction.
    /// @param handler contract to handle fallbacks calls.
    function setFallbackHandler(address handler) external authorized {
        setFallbackHandler(handler, false);
        emit ChangedFallbackHandler(handler);
    }

    function setFallbackHandler(address handler, bool delegate) internal {
        require(handler != address(this), "handler illegal");
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let encoded := or(shl(96, handler), delegate)
            sstore(slot, encoded)
        }
    }

    function initializeFallbackHandler(address handler) internal {
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let encoded := shl(96, handler)
            sstore(slot, encoded)
        }
    }

    // solhint-disable-next-line payable-fallback,no-complex-fallback
    fallback() external {
        assembly {
            // Load handler and delegate flag from storage
            let encoded := sload(FALLBACK_HANDLER_STORAGE_SLOT)
            let handler := shr(96, encoded)
            let delegate := and(encoded, 1)

            // Copy calldata to memory
            calldatacopy(0, 0, calldatasize())

            // If delegate flag is set, delegate the call to the handler
            switch delegate
            case 0 {
                mstore(calldatasize(), shl(96, caller()))
                let success := call(
                    gas(),
                    handler,
                    0,
                    0,
                    add(calldatasize(), 20),
                    0,
                    0
                )
                returndatacopy(0, 0, returndatasize())
                if iszero(success) {
                    revert(0, returndatasize())
                }
                return(0, returndatasize())
            }
            case 1 {
                let result := delegatecall(
                    gas(),
                    handler,
                    0,
                    calldatasize(),
                    0,
                    0
                )

                returndatacopy(0, 0, returndatasize())

                switch result
                case 0 {
                    revert(0, returndatasize())
                }
                default {
                    return(0, returndatasize())
                }
            }
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

import "../common/Enum.sol";
import "../common/SelfAuthorized.sol";
import "./Executor.sol";

interface Guard {
    function checkTransaction(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation
    ) external;

    function checkAfterExecution(bool success) external;
}

/// @title Fallback Manager - A contract that manages fallback calls made to this contract
contract GuardManager is SelfAuthorized, Executor {
    event ChangedGuard(address guard);

    // keccak256("guard_manager.guard.address")
    bytes32 internal constant GUARD_STORAGE_SLOT =
        0x4a204f620c8c5ccdca3fd54d003badd85ba500436a431f0cbda4f558c93c34c8;

    function getGuard() public view returns (address guard) {
        bytes32 slot = GUARD_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            guard := sload(slot)
        }
    }

    function setGuard(address guard) external authorized {
        bytes32 slot = GUARD_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, guard)
        }
        emit ChangedGuard(guard);
    }

    // execute from this contract
    function execTransactionBatch(
        bytes memory executeParamBytes
    ) external authorized {
        executeWithGuardBatch(abi.decode(executeParamBytes, (ExecuteParams[])));
    }

    function execTransactionRevertOnFail(
        bytes memory executeParamBytes
    ) external authorized {
        execTransactionBatchRevertOnFail(
            abi.decode(executeParamBytes, (ExecuteParams[]))
        );
    }

    function executeWithGuard(
        address to,
        uint256 value,
        bytes calldata data
    ) internal {
        address guard = getGuard();
        if (guard != address(0)) {
            Guard(guard).checkTransaction(to, value, data, Enum.Operation.Call);
            Guard(guard).checkAfterExecution(
                execute(
                    ExecuteParams(false, to, value, data, ""),
                    Enum.Operation.Call,
                    gasleft()
                )
            );
        } else {
            execute(
                ExecuteParams(false, to, value, data, ""),
                Enum.Operation.Call,
                gasleft()
            );
        }
    }

    function execTransactionBatchRevertOnFail(
        ExecuteParams[] memory _params
    ) internal {
        address guard = getGuard();
        uint256 length = _params.length;

        if (guard == address(0)) {
            for (uint256 i = 0; i < length; ) {
                ExecuteParams memory param = _params[i];
                execute(param, Enum.Operation.Call, gasleft());

                if (param.nestedCalls.length > 0) {
                    try
                        this.execTransactionRevertOnFail(param.nestedCalls)
                    {} catch (bytes memory returnData) {
                        revert(string(returnData));
                    }
                }

                unchecked {
                    ++i;
                }
            }
        } else {
            for (uint256 i = 0; i < length; ) {
                ExecuteParams memory param = _params[i];

                Guard(guard).checkTransaction(
                    param.to,
                    param.value,
                    param.data,
                    Enum.Operation.Call
                );

                Guard(guard).checkAfterExecution(
                    execute(param, Enum.Operation.Call, gasleft())
                );

                if (param.nestedCalls.length > 0) {
                    try
                        this.execTransactionRevertOnFail(param.nestedCalls)
                    {} catch (bytes memory returnData) {
                        revert(string(returnData));
                    }
                }

                unchecked {
                    ++i;
                }
            }
        }
    }

    function executeWithGuardBatch(ExecuteParams[] memory _params) internal {
        address guard = getGuard();
        uint256 length = _params.length;

        if (guard == address(0)) {
            for (uint256 i = 0; i < length; ) {
                ExecuteParams memory param = _params[i];
                bool success = execute(param, Enum.Operation.Call, gasleft());
                if (success) {
                    emit HandleSuccessExternalCalls();
                }

                if (param.nestedCalls.length > 0) {
                    try this.execTransactionBatch(param.nestedCalls) {} catch (
                        bytes memory returnData
                    ) {
                        emit HandleFailedExternalCalls(returnData);
                    }
                }

                unchecked {
                    ++i;
                }
            }
        } else {
            for (uint256 i = 0; i < length; ) {
                ExecuteParams memory param = _params[i];

                Guard(guard).checkTransaction(
                    param.to,
                    param.value,
                    param.data,
                    Enum.Operation.Call
                );

                bool success = execute(param, Enum.Operation.Call, gasleft());
                if (success) {
                    emit HandleSuccessExternalCalls();
                }

                Guard(guard).checkAfterExecution(success);

                if (param.nestedCalls.length > 0) {
                    try this.execTransactionBatch(param.nestedCalls) {} catch (
                        bytes memory returnData
                    ) {
                        emit HandleFailedExternalCalls(returnData);
                    }
                }

                unchecked {
                    ++i;
                }
            }
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;
import "../common/Enum.sol";
import "../common/SelfAuthorized.sol";
import "./Executor.sol";

/// @title Module Manager - A contract that manages modules that can execute transactions via this contract
contract ModuleManager is SelfAuthorized, Executor {
    event EnabledModule(address module);
    event DisabledModule(address module);
    event ExecutionFromModuleSuccess(address module);
    event ExecutionFromModuleFailure(address module);

    address internal constant SENTINEL_MODULES = address(0x1);
    mapping(address => address) internal modules;

    function initializeModules() internal {
        modules[SENTINEL_MODULES] = SENTINEL_MODULES;
    }

    function enableModule(address module) public authorized {
        // Module address cannot be null or sentinel.
        require(module != address(0) && module != SENTINEL_MODULES, "GS101");
        // Module cannot be added twice.
        require(modules[module] == address(0), "GS102");

        modules[module] = modules[SENTINEL_MODULES];
        modules[SENTINEL_MODULES] = module;
        emit EnabledModule(module);
    }

    /// @dev Allows to remove a module from the whitelist.
    ///      This can only be done via a Safe transaction.
    /// @notice Disables the module `module` for the Safe.
    /// @param prevModule Module that pointed to the module to be removed in the linked list
    /// @param module Module to be removed.
    function disableModule(
        address prevModule,
        address module
    ) public authorized {
        // Validate module address and check that it corresponds to module index.
        require(module != address(0) && module != SENTINEL_MODULES, "GS101");
        require(modules[prevModule] == module, "GS103");
        modules[prevModule] = modules[module];
        modules[module] = address(0);
        emit DisabledModule(module);
    }

    /// @dev Returns if an module is enabled
    /// @return True if the module is enabled
    function isModuleEnabled(address module) public view returns (bool) {
        return SENTINEL_MODULES != module && modules[module] != address(0);
    }

    /// @dev Allows a Module to execute a Safe transaction without any further confirmations.
    /// @param to Destination address of module transaction.
    /// @param value Ether value of module transaction.
    /// @param data Data payload of module transaction.
    /// @param operation Operation type of module transaction.
    function execTransactionFromModule(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation
    ) public virtual {
        // Only whitelisted modules are allowed.
        require(modules[msg.sender] != address(0), "GS104");
        // Execute transaction without further confirmations.
        if (
            execute(
                ExecuteParams(false, to, value, data, ""),
                operation,
                gasleft()
            )
        ) emit ExecutionFromModuleSuccess(msg.sender);
        else emit ExecutionFromModuleFailure(msg.sender);
    }

    /// @dev Allows a Module to execute a Safe transaction without any further confirmations and return data
    /// @param to Destination address of module transaction.
    /// @param value Ether value of module transaction.
    /// @param data Data payload of module transaction.
    /// @param operation Operation type of module transaction.
    function execTransactionFromModuleReturnData(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation
    ) public returns (bytes memory returnData) {
        execTransactionFromModule(to, value, data, operation);
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Load free memory location
            let ptr := mload(0x40)
            // We allocate memory for the return data by setting the free memory location to
            // current free memory location + data size + 32 bytes for data size value
            mstore(0x40, add(ptr, add(returndatasize(), 0x20)))
            // Store the size
            mstore(ptr, returndatasize())
            // Store the data
            returndatacopy(add(ptr, 0x20), 0, returndatasize())
            // Point the return data to the correct memory location
            returnData := ptr
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

contract OwnerManager {
    event AAOwnerSet(address owner);

    address internal owner;

    uint256 private nonce;

    modifier onlyOwner() {
        require(isOwner(msg.sender), "not call by owner");
        _;
    }

    function initializeOwners(address _owner) internal {
        owner = _owner;

        emit AAOwnerSet(_owner);
    }

    function isOwner(address _owner) public view returns (bool) {
        return owner == _owner;
    }

    function getOwner() public view returns (address) {
        return owner;
    }
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.12;

import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "../../@eth-infinitism-v0.6/core/BaseAccount.sol";
import "../common/Enum.sol";
import "../common/SignatureDecoder.sol";
import "./OwnerManager.sol";

contract SignatureManager is BaseAccount, Enum, OwnerManager, SignatureDecoder {
    using UserOperationLib for UserOperation;

    IEntryPoint internal immutable ENTRYPOINT;

    bytes32 internal immutable HASH_NAME;

    bytes32 internal immutable HASH_VERSION;

    bytes32 internal immutable TYPE_HASH;

    address internal immutable ADDRESS_THIS;

    bytes32 internal immutable EIP712_ORDER_STRUCT_SCHEMA_HASH;

    struct SignMessage {
        address sender;
        uint256 nonce;
        bytes initCode;
        bytes callData;
        uint256 callGasLimit;
        uint256 verificationGasLimit;
        uint256 preVerificationGas;
        uint256 maxFeePerGas;
        uint256 maxPriorityFeePerGas;
        bytes paymasterAndData;
        address EntryPoint;
        uint256 sigTime;
    }

    /* solhint-enable var-name-mixedcase */

    constructor(address entrypoint, string memory name, string memory version) {
        ENTRYPOINT = IEntryPoint(entrypoint);

        HASH_NAME = keccak256(bytes(name));
        HASH_VERSION = keccak256(bytes(version));
        TYPE_HASH = keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
        ADDRESS_THIS = address(this);

        EIP712_ORDER_STRUCT_SCHEMA_HASH = keccak256(
            abi.encodePacked(
                "SignMessage(",
                "address sender,",
                "uint256 nonce,",
                "bytes initCode,",
                "bytes callData,",
                "uint256 callGasLimit,",
                "uint256 verificationGasLimit,",
                "uint256 preVerificationGas,",
                "uint256 maxFeePerGas,",
                "uint256 maxPriorityFeePerGas,",
                "bytes paymasterAndData,",
                "address EntryPoint,",
                "uint256 sigTime",
                ")"
            )
        );
    }

    function getUOPHash(
        SignatureType sigType,
        address EntryPoint,
        UserOperation calldata userOp
    ) public view returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    sigType == SignatureType.EIP712Type
                        ? EIP712_ORDER_STRUCT_SCHEMA_HASH
                        : bytes32(block.chainid),
                    userOp.getSender(),
                    userOp.nonce,
                    keccak256(userOp.initCode),
                    keccak256(userOp.callData),
                    userOp.callGasLimit,
                    userOp.verificationGasLimit,
                    userOp.preVerificationGas,
                    userOp.maxFeePerGas,
                    userOp.maxPriorityFeePerGas,
                    keccak256(userOp.paymasterAndData),
                    EntryPoint,
                    uint256(bytes32(userOp.signature[1:33]))
                )
            );
    }

    function getUOPSignedHash(
        SignatureType sigType,
        address EntryPoint,
        UserOperation calldata userOp
    ) public view returns (bytes32) {
        return
            sigType == SignatureType.EIP712Type
                ? ECDSA.toTypedDataHash(
                    keccak256(
                        abi.encode(
                            TYPE_HASH,
                            HASH_NAME,
                            HASH_VERSION,
                            block.chainid,
                            ADDRESS_THIS
                        )
                    ),
                    keccak256(
                        abi.encode(
                            EIP712_ORDER_STRUCT_SCHEMA_HASH,
                            userOp.getSender(),
                            userOp.nonce,
                            keccak256(userOp.initCode),
                            keccak256(userOp.callData),
                            userOp.callGasLimit,
                            userOp.verificationGasLimit,
                            userOp.preVerificationGas,
                            userOp.maxFeePerGas,
                            userOp.maxPriorityFeePerGas,
                            keccak256(userOp.paymasterAndData),
                            EntryPoint,
                            uint256(bytes32(userOp.signature[1:33]))
                        )
                    )
                )
                : ECDSA.toEthSignedMessageHash(
                    keccak256(
                        abi.encode(
                            bytes32(block.chainid),
                            userOp.getSender(),
                            userOp.nonce,
                            keccak256(userOp.initCode),
                            keccak256(userOp.callData),
                            userOp.callGasLimit,
                            userOp.verificationGasLimit,
                            userOp.preVerificationGas,
                            userOp.maxFeePerGas,
                            userOp.maxPriorityFeePerGas,
                            keccak256(userOp.paymasterAndData),
                            EntryPoint,
                            uint256(bytes32(userOp.signature[1:33]))
                        )
                    )
                );
    }

    function validateUserOp(
        UserOperation calldata userOp,
        bytes32,
        uint256 missingAccountFunds
    ) public virtual override returns (uint256) {
        if (missingAccountFunds != 0) {
            payable(msg.sender).call{
                value: missingAccountFunds,
                gas: type(uint256).max
            }("");
        }

        return
            _validateSignature(
                userOp,
                getUOPSignedHash(
                    SignatureType(uint8(bytes1(userOp.signature[0:1]))),
                    msg.sender,
                    userOp
                )
            );
    }

    function _validateSignature(
        UserOperation calldata userOp,
        bytes32 userOpHash
    ) internal virtual override returns (uint256 validationData) {
        uint256 sigTime = uint256(bytes32(userOp.signature[1:33]));

        uint formatSigTime = _formatSigtimeToValidationData(sigTime);
        if (ECDSA.recover(userOpHash, userOp.signature[33:]) != owner) {
            return SIG_VALIDATION_FAILED;
        } else {
            return formatSigTime;
        }
    }

    /// @dev format sigtime to validationData struct
    /// @param sigTime: 0x[address 20 bytes][after 6 bytes][until 6 bytes]
    /// @return data: ValidationData
    function _formatSigtimeToValidationData(
        uint256 sigTime
    ) private pure returns (uint256) {
        uint48 validUntil = uint48(sigTime);
        if (validUntil == 0) {
            validUntil = type(uint48).max;
        }
        uint48 validAfter = uint48(sigTime >> 48);
        address aggregator = address(uint160(sigTime >> (48 + 48)));

        return
            _packValidationData(
                ValidationData(aggregator, validAfter, validUntil)
            );
    }

    function entryPoint() public view virtual override returns (IEntryPoint) {
        return ENTRYPOINT;
    }

    function isValidSignature(
        bytes32 _hash,
        bytes calldata _signature
    ) external view returns (bytes4) {
        if (isOwner(ECDSA.recover(_hash, _signature))) {
            return 0x1626ba7e;
        } else {
            return 0xffffffff;
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

/// @title Enum - Collection of enums
contract Enum {
    enum Operation {
        Call,
        DelegateCall
    }
    enum SignatureType {
        EIP712Type,
        EIP191Type
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

/// @title EtherPaymentFallback - A contract that has a fallback to accept ether payments
/// @author Richard Meissner - <[email protected]>
contract EtherPaymentFallback {
    event SafeReceived(address indexed sender, uint256 value);

    /// @dev Fallback function accepts Ether transactions.
    receive() external payable {
        emit SafeReceived(msg.sender, msg.value);
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

/// @title SecuredTokenTransfer - Secure token transfer
/// @author Richard Meissner - <[email protected]>
contract SecuredTokenTransfer {
    /// @dev Transfers a token and returns if it was a success
    /// @param token Token that should be transferred
    /// @param receiver Receiver to whom the token should be transferred
    /// @param amount The amount of tokens that should be transferred
    function transferToken(
        address token,
        address receiver,
        uint256 amount
    ) internal returns (bool transferred) {
        // 0xa9059cbb - keccack("transfer(address,uint256)")
        bytes memory data = abi.encodeWithSelector(
            0xa9059cbb,
            receiver,
            amount
        );
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // We write the return value to scratch space.
            // See https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html#layout-in-memory
            let success := call(
                sub(gas(), 10000),
                token,
                0,
                add(data, 0x20),
                mload(data),
                0,
                0x20
            )
            switch returndatasize()
            case 0 {
                transferred := success
            }
            case 0x20 {
                transferred := iszero(or(iszero(success), iszero(mload(0))))
            }
            default {
                transferred := 0
            }
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

/// @title SelfAuthorized - authorizes current contract to perform actions
/// @author Richard Meissner - <[email protected]>
contract SelfAuthorized {
    function requireSelfCall() private view {
        require(msg.sender == address(this), "GS031");
    }

    modifier authorized() {
        // This is a function call as it minimized the bytecode size
        requireSelfCall();
        _;
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;

/// @title SignatureDecoder - Decodes signatures that a encoded as bytes
/// @author Richard Meissner - <[email protected]>
contract SignatureDecoder {
    /// @dev divides bytes signature into `uint8 v, bytes32 r, bytes32 s`.
    /// @notice Make sure to peform a bounds check for @param pos, to avoid out of bounds access on @param signatures
    /// @param pos which signature to read. A prior bounds check of this parameter should be performed, to avoid out of bounds access
    /// @param signatures concatenated rsv signatures
    function signatureSplit(
        bytes memory signatures,
        uint256 pos
    ) internal pure returns (uint8 v, bytes32 r, bytes32 s) {
        // The signature format is a compact form of:
        //   {bytes32 r}{bytes32 s}{uint8 v}
        // Compact means, uint8 is not padded to 32 bytes.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let signaturePos := mul(0x41, pos)
            r := mload(add(signatures, add(signaturePos, 0x20)))
            s := mload(add(signatures, add(signaturePos, 0x40)))
            // Here we are loading the last 32 bytes, including 31 bytes
            // of 's'. There is no 'mload8' to do this.
            //
            // 'byte' is not working due to the Solidity parser, so lets
            // use the second best option, 'and'
            v := and(mload(add(signatures, add(signaturePos, 0x41))), 0xff)
        }
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity ^0.8.12;
import "./SelfAuthorized.sol";

/// @title Singleton - Base for singleton contracts (should always be first super contract)
///         This contract is tightly coupled to our proxy contract
contract Singleton is SelfAuthorized {
    event ImplementUpdated(address indexed implement);
    address internal singleton;

    function updateImplement(address implement) external authorized {
        singleton = implement;
        emit ImplementUpdated(implement);
    }

    function updateImplementAndCall(
        address implement,
        bytes calldata data
    ) external authorized {
        singleton = implement;
        emit ImplementUpdated(implement);
        (bool success, ) = implement.delegatecall(data);
        require(success, "Update implementation failed");
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_entryPoint","type":"address"},{"internalType":"address","name":"_fallbackHandler","type":"address"},{"internalType":"address","name":"_validations","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_version","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"owner","type":"address"}],"name":"AAOwnerSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"handler","type":"address"}],"name":"ChangedFallbackHandler","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"guard","type":"address"}],"name":"ChangedGuard","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"module","type":"address"}],"name":"DisabledModule","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"module","type":"address"}],"name":"EnabledModule","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"module","type":"address"}],"name":"ExecutionFromModuleFailure","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"module","type":"address"}],"name":"ExecutionFromModuleSuccess","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes","name":"revertReason","type":"bytes"}],"name":"HandleFailedExternalCalls","type":"event"},{"anonymous":false,"inputs":[],"name":"HandleSuccessExternalCalls","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implement","type":"address"}],"name":"ImplementUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"SafeReceived","type":"event"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[],"name":"FALLBACKHANDLER","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VALIDATIONS","outputs":[{"internalType":"contract IValidations","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"prevModule","type":"address"},{"internalType":"address","name":"module","type":"address"}],"name":"disableModule","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"module","type":"address"}],"name":"enableModule","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"entryPoint","outputs":[{"internalType":"contract IEntryPoint","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"executeParamBytes","type":"bytes"}],"name":"execTransactionBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"execTransactionFromEntrypoint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bool","name":"allowFailed","type":"bool"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"nestedCalls","type":"bytes"}],"internalType":"struct Executor.ExecuteParams[]","name":"_params","type":"tuple[]"}],"name":"execTransactionFromEntrypointBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"bool","name":"allowFailed","type":"bool"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"bytes","name":"nestedCalls","type":"bytes"}],"internalType":"struct Executor.ExecuteParams[]","name":"_params","type":"tuple[]"}],"name":"execTransactionFromEntrypointBatchRevertOnFail","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"enum Enum.Operation","name":"operation","type":"uint8"}],"name":"execTransactionFromModule","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"},{"internalType":"enum Enum.Operation","name":"operation","type":"uint8"}],"name":"execTransactionFromModuleReturnData","outputs":[{"internalType":"bytes","name":"returnData","type":"bytes"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes","name":"executeParamBytes","type":"bytes"}],"name":"execTransactionRevertOnFail","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getFallbackHandler","outputs":[{"internalType":"address","name":"fallbackHandler","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getGuard","outputs":[{"internalType":"address","name":"guard","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getNonce","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"enum Enum.SignatureType","name":"sigType","type":"uint8"},{"internalType":"address","name":"EntryPoint","type":"address"},{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"uint256","name":"callGasLimit","type":"uint256"},{"internalType":"uint256","name":"verificationGasLimit","type":"uint256"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"uint256","name":"maxFeePerGas","type":"uint256"},{"internalType":"uint256","name":"maxPriorityFeePerGas","type":"uint256"},{"internalType":"bytes","name":"paymasterAndData","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct UserOperation","name":"userOp","type":"tuple"}],"name":"getUOPHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"enum Enum.SignatureType","name":"sigType","type":"uint8"},{"internalType":"address","name":"EntryPoint","type":"address"},{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"uint256","name":"callGasLimit","type":"uint256"},{"internalType":"uint256","name":"verificationGasLimit","type":"uint256"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"uint256","name":"maxFeePerGas","type":"uint256"},{"internalType":"uint256","name":"maxPriorityFeePerGas","type":"uint256"},{"internalType":"bytes","name":"paymasterAndData","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct UserOperation","name":"userOp","type":"tuple"}],"name":"getUOPSignedHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"creator","type":"address"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"module","type":"address"}],"name":"isModuleEnabled","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_hash","type":"bytes32"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"isValidSignature","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nonce","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"handler","type":"address"}],"name":"setFallbackHandler","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"guard","type":"address"}],"name":"setGuard","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"implement","type":"address"}],"name":"updateImplement","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"implement","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"updateImplementAndCall","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"bytes","name":"initCode","type":"bytes"},{"internalType":"bytes","name":"callData","type":"bytes"},{"internalType":"uint256","name":"callGasLimit","type":"uint256"},{"internalType":"uint256","name":"verificationGasLimit","type":"uint256"},{"internalType":"uint256","name":"preVerificationGas","type":"uint256"},{"internalType":"uint256","name":"maxFeePerGas","type":"uint256"},{"internalType":"uint256","name":"maxPriorityFeePerGas","type":"uint256"},{"internalType":"bytes","name":"paymasterAndData","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"}],"internalType":"struct UserOperation","name":"userOp","type":"tuple"},{"internalType":"bytes32","name":"userOpHash","type":"bytes32"},{"internalType":"uint256","name":"missingAccountFunds","type":"uint256"}],"name":"validateUserOp","outputs":[{"internalType":"uint256","name":"validationData","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

-----Decoded View---------------
Arg [0] : _entryPoint (address): 0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789
Arg [1] : _fallbackHandler (address): 0xA0be66C8d60A3ca53E83b5f376C6259b8de02586
Arg [2] : _validations (address): 0x228E505D1F21948968fB52794ea823f65053A294
Arg [3] : _name (string): SA
Arg [4] : _version (string): 2.0.0

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 0000000000000000000000005ff137d4b0fdcd49dca30c7cf57e578a026d2789
Arg [1] : 000000000000000000000000a0be66c8d60a3ca53e83b5f376c6259b8de02586
Arg [2] : 000000000000000000000000228e505d1f21948968fb52794ea823f65053a294
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [4] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000002
Arg [6] : 5341000000000000000000000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [8] : 322e302e30000000000000000000000000000000000000000000000000000000