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/**
 *Submitted for verification at Etherscan.io on 2023-08-25
*/

// SPDX-License-Identifier: MIT

pragma solidity =0.8.10;





contract MainnetActionsUtilAddresses {
    address internal constant DFS_REG_CONTROLLER_ADDR = 0xF8f8B3C98Cf2E63Df3041b73f80F362a4cf3A576;
    address internal constant REGISTRY_ADDR = 0x287778F121F134C66212FB16c9b53eC991D32f5b;
    address internal constant DFS_LOGGER_ADDR = 0xcE7a977Cac4a481bc84AC06b2Da0df614e621cf3;
    address internal constant SUB_STORAGE_ADDR = 0x1612fc28Ee0AB882eC99842Cde0Fc77ff0691e90;
    address internal constant PROXY_AUTH_ADDR = 0x149667b6FAe2c63D1B4317C716b0D0e4d3E2bD70;
    address internal constant LSV_PROXY_REGISTRY_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address internal constant TRANSIENT_STORAGE = 0x2F7Ef2ea5E8c97B8687CA703A0e50Aa5a49B7eb2;
}





contract ActionsUtilHelper is MainnetActionsUtilAddresses {
}





contract MainnetAuthAddresses {
    address internal constant ADMIN_VAULT_ADDR = 0xCCf3d848e08b94478Ed8f46fFead3008faF581fD;
    address internal constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7;
    address internal constant ADMIN_ADDR = 0x25eFA336886C74eA8E282ac466BdCd0199f85BB9; // USED IN ADMIN VAULT CONSTRUCTOR
}





contract AuthHelper is MainnetAuthAddresses {
}





contract AdminVault is AuthHelper {
    address public owner;
    address public admin;

    error SenderNotAdmin();

    constructor() {
        owner = msg.sender;
        admin = ADMIN_ADDR;
    }

    /// @notice Admin is able to change owner
    /// @param _owner Address of new owner
    function changeOwner(address _owner) public {
        if (admin != msg.sender){
            revert SenderNotAdmin();
        }
        owner = _owner;
    }

    /// @notice Admin is able to set new admin
    /// @param _admin Address of multisig that becomes new admin
    function changeAdmin(address _admin) public {
        if (admin != msg.sender){
            revert SenderNotAdmin();
        }
        admin = _admin;
    }

}





interface IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint256 digits);
    function totalSupply() external view returns (uint256 supply);

    function balanceOf(address _owner) external view returns (uint256 balance);

    function transfer(address _to, uint256 _value) external returns (bool success);

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) external returns (bool success);

    function approve(address _spender, uint256 _value) external returns (bool success);

    function allowance(address _owner, address _spender) external view returns (uint256 remaining);

    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}





library Address {
    //insufficient balance
    error InsufficientBalance(uint256 available, uint256 required);
    //unable to send value, recipient may have reverted
    error SendingValueFail();
    //insufficient balance for call
    error InsufficientBalanceForCall(uint256 available, uint256 required);
    //call to non-contract
    error NonContractCall();
    
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        uint256 balance = address(this).balance;
        if (balance < amount){
            revert InsufficientBalance(balance, amount);
        }

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{value: amount}("");
        if (!(success)){
            revert SendingValueFail();
        }
    }

    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return
            functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        uint256 balance = address(this).balance;
        if (balance < value){
            revert InsufficientBalanceForCall(balance, value);
        }
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(
        address target,
        bytes memory data,
        uint256 weiValue,
        string memory errorMessage
    ) private returns (bytes memory) {
        if (!(isContract(target))){
            revert NonContractCall();
        }

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{value: weiValue}(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}




library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}







library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
        );
    }

    /// @dev Edited so it always first approves 0 and then the value, because of non standard tokens
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.approve.selector, spender, newAllowance)
        );
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(
            value,
            "SafeERC20: decreased allowance below zero"
        );
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.approve.selector, spender, newAllowance)
        );
    }

    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        bytes memory returndata = address(token).functionCall(
            data,
            "SafeERC20: low-level call failed"
        );
        if (returndata.length > 0) {
            // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}







contract AdminAuth is AuthHelper {
    using SafeERC20 for IERC20;

    AdminVault public constant adminVault = AdminVault(ADMIN_VAULT_ADDR);

    error SenderNotOwner();
    error SenderNotAdmin();

    modifier onlyOwner() {
        if (adminVault.owner() != msg.sender){
            revert SenderNotOwner();
        }
        _;
    }

    modifier onlyAdmin() {
        if (adminVault.admin() != msg.sender){
            revert SenderNotAdmin();
        }
        _;
    }

    /// @notice withdraw stuck funds
    function withdrawStuckFunds(address _token, address _receiver, uint256 _amount) public onlyOwner {
        if (_token == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) {
            payable(_receiver).transfer(_amount);
        } else {
            IERC20(_token).safeTransfer(_receiver, _amount);
        }
    }

    /// @notice Destroy the contract
    function kill() public onlyAdmin {
        selfdestruct(payable(msg.sender));
    }
}





abstract contract DSAuthority {
    function canCall(
        address src,
        address dst,
        bytes4 sig
    ) public view virtual returns (bool);
}





contract DSAuthEvents {
    event LogSetAuthority(address indexed authority);
    event LogSetOwner(address indexed owner);
}

contract DSAuth is DSAuthEvents {
    DSAuthority public authority;
    address public owner;

    constructor() {
        owner = msg.sender;
        emit LogSetOwner(msg.sender);
    }

    function setOwner(address owner_) public auth {
        owner = owner_;
        emit LogSetOwner(owner);
    }

    function setAuthority(DSAuthority authority_) public auth {
        authority = authority_;
        emit LogSetAuthority(address(authority));
    }

    modifier auth {
        require(isAuthorized(msg.sender, msg.sig), "Not authorized");
        _;
    }

    function isAuthorized(address src, bytes4 sig) internal view returns (bool) {
        if (src == address(this)) {
            return true;
        } else if (src == owner) {
            return true;
        } else if (authority == DSAuthority(address(0))) {
            return false;
        } else {
            return authority.canCall(src, address(this), sig);
        }
    }
}





contract DSNote {
    event LogNote(
        bytes4 indexed sig,
        address indexed guy,
        bytes32 indexed foo,
        bytes32 indexed bar,
        uint256 wad,
        bytes fax
    ) anonymous;

    modifier note {
        bytes32 foo;
        bytes32 bar;

        assembly {
            foo := calldataload(4)
            bar := calldataload(36)
        }

        emit LogNote(msg.sig, msg.sender, foo, bar, msg.value, msg.data);

        _;
    }
}






abstract contract DSProxy is DSAuth, DSNote {
    DSProxyCache public cache; // global cache for contracts

    constructor(address _cacheAddr) {
        if (!(setCache(_cacheAddr))){
            require(isAuthorized(msg.sender, msg.sig), "Not authorized");
        }
    }

    // solhint-disable-next-line no-empty-blocks
    receive() external payable {}

    // use the proxy to execute calldata _data on contract _code
    function execute(bytes memory _code, bytes memory _data)
        public
        payable
        virtual
        returns (address target, bytes32 response);

    function execute(address _target, bytes memory _data)
        public
        payable
        virtual
        returns (bytes32 response);

    //set new cache
    function setCache(address _cacheAddr) public payable virtual returns (bool);
}

contract DSProxyCache {
    mapping(bytes32 => address) cache;

    function read(bytes memory _code) public view returns (address) {
        bytes32 hash = keccak256(_code);
        return cache[hash];
    }

    function write(bytes memory _code) public returns (address target) {
        assembly {
            target := create(0, add(_code, 0x20), mload(_code))
            switch iszero(extcodesize(target))
                case 1 {
                    // throw if contract failed to deploy
                    revert(0, 0)
                }
        }
        bytes32 hash = keccak256(_code);
        cache[hash] = target;
    }
}





abstract contract DSProxyFactoryInterface {
    function build(address owner) public virtual returns (DSProxy proxy);
    function build() public virtual returns (DSProxy proxy);
}





contract MainnetUtilAddresses {
    address internal refillCaller = 0x33fDb79aFB4456B604f376A45A546e7ae700e880;
    address internal feeAddr = 0x76720aC2574631530eC8163e4085d6F98513fb27;

    address internal constant BOT_REGISTRY_ADDRESS = 0x637726f8b08a7ABE3aE3aCaB01A80E2d8ddeF77B;
    address internal constant UNI_V2_ROUTER = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    address internal constant MKR_PROXY_REGISTRY = 0x4678f0a6958e4D2Bc4F1BAF7Bc52E8F3564f3fE4;
    address internal constant AAVE_MARKET = 0xB53C1a33016B2DC2fF3653530bfF1848a515c8c5;

    address internal constant PROXY_FACTORY_ADDR = 0xA26e15C895EFc0616177B7c1e7270A4C7D51C997;
    address internal constant DFS_PROXY_REGISTRY_ADDR = 0x29474FdaC7142f9aB7773B8e38264FA15E3805ed;

    address internal constant WETH_ADDR = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address internal constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address internal constant WSTETH_ADDR = 0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0;
    address internal constant STETH_ADDR = 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84;
    address internal constant WBTC_ADDR = 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599;
    address internal constant CHAINLINK_WBTC_ADDR = 0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB;
    address internal constant DAI_ADDR = 0x6B175474E89094C44Da98b954EedeAC495271d0F;

    address internal constant FEE_RECEIVER_ADMIN_ADDR = 0xA74e9791D7D66c6a14B2C571BdA0F2A1f6D64E06;

    address internal constant UNI_V3_ROUTER = 0xE592427A0AEce92De3Edee1F18E0157C05861564;
    address internal constant UNI_V3_QUOTER = 0xb27308f9F90D607463bb33eA1BeBb41C27CE5AB6;

    address internal constant FEE_RECIPIENT = 0x39C4a92Dc506300c3Ea4c67ca4CA611102ee6F2A;

    // not needed on mainnet
    address internal constant DEFAULT_BOT = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    address public constant CHAINLINK_FEED_REGISTRY = 0x47Fb2585D2C56Fe188D0E6ec628a38b74fCeeeDf;
}





contract UtilHelper is MainnetUtilAddresses{
}








contract LSVProxyRegistry is AdminAuth, UtilHelper, ActionsUtilHelper {

    /// @dev List of proxies a user owns
    mapping(address => address[]) public proxies;

    /// @dev List of prebuilt proxies the users can claim to save gas
    address[] public proxyPool;

    event NewProxy(address, address);
    event ChangedOwner(address oldOwner, address newOwner, address proxy);

    /// @notice User calls from EOA to build a new LSV registered proxy
    function addNewProxy() public returns (address) {
        address newProxy = getFromPoolOrBuild(msg.sender);
        proxies[msg.sender].push(newProxy);

        emit NewProxy(msg.sender, newProxy);

        return newProxy;
    }

    function updateRegistry(address _proxyAddr, address _oldOwner, uint256 _indexNumInOldOwnerProxiesArr) public {
        // check if msg.sender is the owner of proxy in question
        require(DSProxy(payable(_proxyAddr)).owner() == msg.sender);

        // check if oldOwner really was the owner of proxy in question
        require(proxies[_oldOwner][_indexNumInOldOwnerProxiesArr] == _proxyAddr);

        // remove proxy from oldOwners proxies
        uint256 oldOwnersProxyCount = proxies[_oldOwner].length;
        if (oldOwnersProxyCount > 1 && _indexNumInOldOwnerProxiesArr < (oldOwnersProxyCount - 1))  {
            proxies[_oldOwner][_indexNumInOldOwnerProxiesArr] = proxies[_oldOwner][oldOwnersProxyCount - 1];
        }
        proxies[_oldOwner].pop();

        // add proxy to msg.sender proxies
        proxies[msg.sender].push(_proxyAddr);
    }

    /// @notice Adds proxies to pool for users to later claim and save on gas
    function addToPool(uint256 _numNewProxies) public {
        for (uint256 i = 0; i < _numNewProxies; ++i) {
            DSProxy newProxy = DSProxyFactoryInterface(PROXY_FACTORY_ADDR).build();
            proxyPool.push(address(newProxy));
        }
    }

    /// @notice helper function to get all users proxies
    function getProxies(address _user) public view returns (address[] memory){
        address[] memory resultProxies = new address[](proxies[_user].length);
        for (uint256 i = 0; i < proxies[_user].length; i++){
            resultProxies[i] = proxies[_user][i];
        }
        return resultProxies;
    }
    
    /// @notice helper function to check how many proxies are there in the proxy pool for cheaper user onboarding
    function getProxyPoolCount() public view returns (uint256) {
        return proxyPool.length;
    }

    /// @notice Create a new DSProxy or grabs a prebuilt one
    function getFromPoolOrBuild(address _user) internal returns (address) {
        if (proxyPool.length > 0) {
            address newProxy = proxyPool[proxyPool.length - 1];
            proxyPool.pop();
            
            DSAuth(newProxy).setOwner(_user);
            return newProxy;
        } else {
            DSProxy newProxy = DSProxyFactoryInterface(PROXY_FACTORY_ADDR).build(_user);
            return address(newProxy);
        }
    }
    
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"NonContractCall","type":"error"},{"inputs":[],"name":"SenderNotAdmin","type":"error"},{"inputs":[],"name":"SenderNotOwner","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"},{"indexed":false,"internalType":"address","name":"proxy","type":"address"}],"name":"ChangedOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"","type":"address"},{"indexed":false,"internalType":"address","name":"","type":"address"}],"name":"NewProxy","type":"event"},{"inputs":[],"name":"CHAINLINK_FEED_REGISTRY","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"addNewProxy","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_numNewProxies","type":"uint256"}],"name":"addToPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"adminVault","outputs":[{"internalType":"contract AdminVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"}],"name":"getProxies","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getProxyPoolCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"kill","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"proxies","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"proxyPool","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_proxyAddr","type":"address"},{"internalType":"address","name":"_oldOwner","type":"address"},{"internalType":"uint256","name":"_indexNumInOldOwnerProxiesArr","type":"uint256"}],"name":"updateRegistry","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawStuckFunds","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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