ETH Price: $3,449.14 (-1.92%)
Gas: 3 Gwei

Contract

0x0308ACc5Edf725Dc6ba65EaDF24cbC8353a3b37B
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Source Code

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 Latest 1 from a total of 1 transactions

Transaction Hash
Method
Block
From
To
0xa4882a3522927424ef25221ecbd612072630ed800eb738f420923abb21cf3ca7
0x6080604097296562020-03-23 19:44:491582 days ago1584992689
0x6c259ea1...9E1D7265f
IN
 Create: MCDSaverFlashLoan
0 ETH0.042710198.1

Latest 25 internal transactions (View All)

Advanced mode:
Parent Transaction Hash Block From To
0xfd14250341e79f88d6fb7fc3390aaa5ef010fe00967907ccc03e04f4310fcf54
99917522020-05-03 7:15:111541 days ago1588490111
DSProxy #872
0x0308ACc5...353a3b37B
0.0015 ETH
0xa3ebfd87318005bc130f302a31cb63f6bb02500db9d2abffb80b2a80d9a5dc6c
99914292020-05-03 5:59:591541 days ago1588485599
0x0308ACc5...353a3b37B
Wrapped Ether
6.0179599 ETH
0xa3ebfd87318005bc130f302a31cb63f6bb02500db9d2abffb80b2a80d9a5dc6c
99914292020-05-03 5:59:591541 days ago1588485599
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
6.0179599 ETH
0x17159774a003f0ba6c3a2675bd42d84d936c61aec71c86139414f792b93aa7dc
99903052020-05-03 1:30:521542 days ago1588469452
0x0308ACc5...353a3b37B
Wrapped Ether
4.5989359 ETH
0x17159774a003f0ba6c3a2675bd42d84d936c61aec71c86139414f792b93aa7dc
99903052020-05-03 1:30:521542 days ago1588469452
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
4.5989359 ETH
0x9b96f9b74f9119d25b315fab6a31477e02c3217826c1081085c5f80deedae8de
99901542020-05-03 0:56:431542 days ago1588467403
0x0308ACc5...353a3b37B
Wrapped Ether
9.23140993 ETH
0x9b96f9b74f9119d25b315fab6a31477e02c3217826c1081085c5f80deedae8de
99901542020-05-03 0:56:431542 days ago1588467403
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
9.23140993 ETH
0x3263b64ea7def2f29d728e3ca13c19485119f6b20734b623c4d3228ca4375253
99901442020-05-03 0:54:261542 days ago1588467266
0x0308ACc5...353a3b37B
Wrapped Ether
55.30783928 ETH
0x3263b64ea7def2f29d728e3ca13c19485119f6b20734b623c4d3228ca4375253
99901442020-05-03 0:54:261542 days ago1588467266
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
55.30783928 ETH
0xb9775f4e8a6f43664e369e5b627f7c9fc170895f2f940cf2c1e5396d2e5490d8
99901412020-05-03 0:53:421542 days ago1588467222
0x0308ACc5...353a3b37B
Wrapped Ether
5.12201045 ETH
0xb9775f4e8a6f43664e369e5b627f7c9fc170895f2f940cf2c1e5396d2e5490d8
99901412020-05-03 0:53:421542 days ago1588467222
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
5.12201045 ETH
0x68e32ee22d2fa2c9d8a4cd54055d4454517fab4103b9b05edf19554e078b5fae
99900922020-05-03 0:43:581542 days ago1588466638
0x0308ACc5...353a3b37B
Wrapped Ether
9.23296738 ETH
0x68e32ee22d2fa2c9d8a4cd54055d4454517fab4103b9b05edf19554e078b5fae
99900922020-05-03 0:43:581542 days ago1588466638
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
9.23296738 ETH
0x64ed7a76fcee01637e59895c8cc08e4fb90b8b2a1bde2ac96f7f0f5872bf55a9
99891792020-05-02 21:22:321542 days ago1588454552
0x0308ACc5...353a3b37B
Wrapped Ether
28.19216838 ETH
0x64ed7a76fcee01637e59895c8cc08e4fb90b8b2a1bde2ac96f7f0f5872bf55a9
99891792020-05-02 21:22:321542 days ago1588454552
0x891f5A17...8C901c9FE
0x0308ACc5...353a3b37B
28.19216838 ETH
0x352052a7dbc2497c1548fb388443783c1bb1d5f22efc9128374d6f48eccf1524
99890652020-05-02 20:56:071542 days ago1588452967
0x0308ACc5...353a3b37B
Wrapped Ether
77.38717131 ETH
0x352052a7dbc2497c1548fb388443783c1bb1d5f22efc9128374d6f48eccf1524
99890652020-05-02 20:56:071542 days ago1588452967
Kyber: Contract
0x0308ACc5...353a3b37B
77.38717131 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
0x0308ACc5...353a3b37B
0x0A803850...5c27FD5CE
0.0015 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
0x0308ACc5...353a3b37B
Aave: Lending Pool Core V1
0.21855901 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
Wrapped Ether
0x0308ACc5...353a3b37B
0.21855901 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
0x0308ACc5...353a3b37B
0x891f5A17...8C901c9FE
0.36079427 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
Wrapped Ether
0x0308ACc5...353a3b37B
0.14243178 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
Aave: Lending Pool Core V1
0x0308ACc5...353a3b37B
0.21836248 ETH
0x6887fbc89f3eb4e49ddb13339ef78f9757ec4e154215c2d7d6a8b186ed38c39f
99859492020-05-02 9:34:321542 days ago1588412072
DSProxy #157,695
0x0308ACc5...353a3b37B
0.0015 ETH
0xcb2e8cdb9ba0bf0a266e4028725ebdbfed11121a533b8262d98e340c3ad3ac52
99816062020-05-01 17:12:111543 days ago1588353131
0x0308ACc5...353a3b37B
Wrapped Ether
48.14730096 ETH
View All Internal Transactions
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Contract Source Code Verified (Exact Match)

Contract Name:
MCDSaverFlashLoan
Compiler Version
v0.5.7+commit.6da8b019
Optimization Enabled:
Yes with 20000 runs
Other Settings:
default evmVersion

Contract Source Code (Solidity)

blockscan-logoblockscan-logoIDE
/**
 *Submitted for verification at Etherscan.io on 2020-03-23
*/

pragma solidity ^0.5.0;


interface ERC20 {
    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);

    function decimals() external view returns (uint256 digits);

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

interface ExchangeInterface {
    function swapEtherToToken(uint256 _ethAmount, address _tokenAddress, uint256 _maxAmount)
        external
        payable
        returns (uint256, uint256);

    function swapTokenToEther(address _tokenAddress, uint256 _amount, uint256 _maxAmount)
        external
        returns (uint256);

    function swapTokenToToken(address _src, address _dest, uint256 _amount)
        external
        payable
        returns (uint256);

    function getExpectedRate(address src, address dest, uint256 srcQty)
        external
        view
        returns (uint256 expectedRate);
}

contract SaverLogger {
    event Repay(
        uint256 indexed cdpId,
        address indexed owner,
        uint256 collateralAmount,
        uint256 daiAmount
    );
    event Boost(
        uint256 indexed cdpId,
        address indexed owner,
        uint256 daiAmount,
        uint256 collateralAmount
    );

    
    function LogRepay(uint256 _cdpId, address _owner, uint256 _collateralAmount, uint256 _daiAmount)
        public
    {
        emit Repay(_cdpId, _owner, _collateralAmount, _daiAmount);
    }

    
    function LogBoost(uint256 _cdpId, address _owner, uint256 _daiAmount, uint256 _collateralAmount)
        public
    {
        emit Boost(_cdpId, _owner, _daiAmount, _collateralAmount);
    }
}

contract Discount {
    address public owner;
    mapping(address => CustomServiceFee) public serviceFees;

    uint256 constant MAX_SERVICE_FEE = 400;

    struct CustomServiceFee {
        bool active;
        uint256 amount;
    }

    constructor() public {
        owner = msg.sender;
    }

    function isCustomFeeSet(address _user) public view returns (bool) {
        return serviceFees[_user].active;
    }

    function getCustomServiceFee(address _user) public view returns (uint256) {
        return serviceFees[_user].amount;
    }

    function setServiceFee(address _user, uint256 _fee) public {
        require(msg.sender == owner, "Only owner");
        require(_fee >= MAX_SERVICE_FEE || _fee == 0);

        serviceFees[_user] = CustomServiceFee({active: true, amount: _fee});
    }

    function disableServiceFee(address _user) public {
        require(msg.sender == owner, "Only owner");

        serviceFees[_user] = CustomServiceFee({active: false, amount: 0});
    }
}

contract PipInterface {
    function read() public returns (bytes32);
}

contract Spotter {
    struct Ilk {
        PipInterface pip;
        uint256 mat;
    }

    mapping (bytes32 => Ilk) public ilks;

    uint256 public par;

}

contract Jug {
    struct Ilk {
        uint256 duty;
        uint256  rho;
    }

    mapping (bytes32 => Ilk) public ilks;

    function drip(bytes32) public returns (uint);
}

contract Vat {

    struct Urn {
        uint256 ink;   
        uint256 art;   
    }

    struct Ilk {
        uint256 Art;   
        uint256 rate;  
        uint256 spot;  
        uint256 line;  
        uint256 dust;  
    }

    mapping (bytes32 => mapping (address => Urn )) public urns;
    mapping (bytes32 => Ilk)                       public ilks;
    mapping (bytes32 => mapping (address => uint)) public gem;  

    function can(address, address) public view returns (uint);
    function dai(address) public view returns (uint);
    function frob(bytes32, address, address, address, int, int) public;
    function hope(address) public;
    function move(address, address, uint) public;
}

contract Gem {
    function dec() public returns (uint);
    function gem() public returns (Gem);
    function join(address, uint) public payable;
    function exit(address, uint) public;

    function approve(address, uint) public;
    function transfer(address, uint) public returns (bool);
    function transferFrom(address, address, uint) public returns (bool);
    function deposit() public payable;
    function withdraw(uint) public;
    function allowance(address, address) public returns (uint);
}

contract DaiJoin {
    function vat() public returns (Vat);
    function dai() public returns (Gem);
    function join(address, uint) public payable;
    function exit(address, uint) public;
}

contract TokenInterface {
    function allowance(address, address) public returns (uint256);

    function balanceOf(address) public returns (uint256);

    function approve(address, uint256) public;

    function transfer(address, uint256) public returns (bool);

    function transferFrom(address, address, uint256) public returns (bool);

    function deposit() public payable;

    function withdraw(uint256) public;
}

contract SaverExchangeInterface {
    function getBestPrice(
        uint256 _amount,
        address _srcToken,
        address _destToken,
        uint256 _exchangeType
    ) public view returns (address, uint256);
}

contract ConstantAddressesExchangeMainnet {
    address public constant MAKER_DAI_ADDRESS = 0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359;
    address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address public constant MKR_ADDRESS = 0x9f8F72aA9304c8B593d555F12eF6589cC3A579A2;
    address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address payable public constant WALLET_ID = 0x322d58b9E75a6918f7e7849AEe0fF09369977e08;
    address public constant LOGGER_ADDRESS = 0xeCf88e1ceC2D2894A0295DB3D86Fe7CE4991E6dF;
    address public constant DISCOUNT_ADDRESS = 0x1b14E8D511c9A4395425314f849bD737BAF8208F;

    address public constant GAS_TOKEN_INTERFACE_ADDRESS = 0x0000000000b3F879cb30FE243b4Dfee438691c04;
    address public constant SAVER_EXCHANGE_ADDRESS = 0x862F3dcF1104b8a9468fBb8B843C37C31B41eF09;

    
    address public constant MANAGER_ADDRESS = 0x5ef30b9986345249bc32d8928B7ee64DE9435E39;
    address public constant VAT_ADDRESS = 0x35D1b3F3D7966A1DFe207aa4514C12a259A0492B;
    address public constant SPOTTER_ADDRESS = 0x65C79fcB50Ca1594B025960e539eD7A9a6D434A3;
    address public constant PROXY_ACTIONS = 0x82ecD135Dce65Fbc6DbdD0e4237E0AF93FFD5038;

    address public constant JUG_ADDRESS = 0x19c0976f590D67707E62397C87829d896Dc0f1F1;
    address public constant DAI_JOIN_ADDRESS = 0x9759A6Ac90977b93B58547b4A71c78317f391A28;
    address public constant ETH_JOIN_ADDRESS = 0x2F0b23f53734252Bda2277357e97e1517d6B042A;
    address public constant MIGRATION_ACTIONS_PROXY = 0xe4B22D484958E582098A98229A24e8A43801b674;

    address public constant SAI_ADDRESS = 0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359;
    address public constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;

    address payable public constant SCD_MCD_MIGRATION = 0xc73e0383F3Aff3215E6f04B0331D58CeCf0Ab849;

    
    address public constant ERC20_PROXY_0X = 0x95E6F48254609A6ee006F7D493c8e5fB97094ceF;
    address public constant NEW_IDAI_ADDRESS = 0x6c1E2B0f67e00c06c8e2BE7Dc681Ab785163fF4D;
}

contract ConstantAddressesExchangeKovan {
    address public constant MAKER_DAI_ADDRESS = 0xC4375B7De8af5a38a93548eb8453a498222C4fF2;
    address public constant KYBER_ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address public constant MKR_ADDRESS = 0xAaF64BFCC32d0F15873a02163e7E500671a4ffcD;
    address public constant WETH_ADDRESS = 0xd0A1E359811322d97991E03f863a0C30C2cF029C;
    address payable public constant WALLET_ID = 0x54b44C6B18fc0b4A1010B21d524c338D1f8065F6;
    address public constant LOGGER_ADDRESS = 0x32d0e18f988F952Eb3524aCE762042381a2c39E5;
    address public constant DISCOUNT_ADDRESS = 0x1297c1105FEDf45E0CF6C102934f32C4EB780929;

    address public constant GAS_TOKEN_INTERFACE_ADDRESS = 0x0000000000170CcC93903185bE5A2094C870Df62;
    address public constant SAVER_EXCHANGE_ADDRESS = 0xACA7d11e3f482418C324aAC8e90AaD0431f692A6;

    
    address public constant MANAGER_ADDRESS = 0x1476483dD8C35F25e568113C5f70249D3976ba21;
    address public constant VAT_ADDRESS = 0xbA987bDB501d131f766fEe8180Da5d81b34b69d9;
    address public constant SPOTTER_ADDRESS = 0x3a042de6413eDB15F2784f2f97cC68C7E9750b2D;
    address public constant PROXY_ACTIONS = 0xd1D24637b9109B7f61459176EdcfF9Be56283a7B;

    address public constant JUG_ADDRESS = 0xcbB7718c9F39d05aEEDE1c472ca8Bf804b2f1EaD;
    address public constant DAI_JOIN_ADDRESS = 0x5AA71a3ae1C0bd6ac27A1f28e1415fFFB6F15B8c;
    address public constant ETH_JOIN_ADDRESS = 0x775787933e92b709f2a3C70aa87999696e74A9F8;
    address public constant MIGRATION_ACTIONS_PROXY = 0x433870076aBd08865f0e038dcC4Ac6450e313Bd8;

    address public constant SAI_ADDRESS = 0xC4375B7De8af5a38a93548eb8453a498222C4fF2;
    address public constant DAI_ADDRESS = 0x4F96Fe3b7A6Cf9725f59d353F723c1bDb64CA6Aa;

    address payable public constant SCD_MCD_MIGRATION = 0x411B2Faa662C8e3E5cF8f01dFdae0aeE482ca7b0;

    
    address public constant ERC20_PROXY_0X = 0x95E6F48254609A6ee006F7D493c8e5fB97094ceF;
    address public constant NEW_IDAI_ADDRESS = 0x6c1E2B0f67e00c06c8e2BE7Dc681Ab785163fF4D;
}

contract ConstantAddressesExchange is ConstantAddressesExchangeMainnet {}

contract ExchangeHelper is ConstantAddressesExchange {

    
    
    
    
    
    
    
    function swap(uint[4] memory _data, address _src, address _dest, address _exchangeAddress, bytes memory _callData) internal returns (uint) {
        address wrapper;
        uint price;
        
        uint[2] memory tokens;
        bool success;

        
        tokens[1] = _data[0];

        _src = wethToKyberEth(_src);
        _dest = wethToKyberEth(_dest);

        
        address[3] memory orderAddresses = [_exchangeAddress, _src, _dest];

        
        if (_data[2] == 4) {
            if (orderAddresses[1] != KYBER_ETH_ADDRESS) {
                ERC20(orderAddresses[1]).approve(address(ERC20_PROXY_0X), _data[0]);
            }

            (success, tokens[0], ) = takeOrder(orderAddresses, _callData, address(this).balance, _data[0]);

            
            require(success && tokens[0] > 0, "0x transaction failed");
        }

        
        
        

        

        
        
        
        
        
        

        
        
        
        
        
        

        
        

        if (tokens[0] == 0) {
            (wrapper, price) = SaverExchangeInterface(SAVER_EXCHANGE_ADDRESS).getBestPrice(_data[0], orderAddresses[1], orderAddresses[2], _data[2]);

            require(price > _data[1] || _data[3] > _data[1], "Slippage hit");

            
            if (_data[3] >= price) {
                if (orderAddresses[1] != KYBER_ETH_ADDRESS) {
                    ERC20(orderAddresses[1]).approve(address(ERC20_PROXY_0X), _data[0]);
                }

                
                (success, tokens[0], tokens[1]) = takeOrder(orderAddresses, _callData, address(this).balance, _data[0]);
            }

            
            if (tokens[1] > 0) {
                
                if (tokens[1] != _data[0]) {
                    (wrapper, price) = SaverExchangeInterface(SAVER_EXCHANGE_ADDRESS).getBestPrice(tokens[1], orderAddresses[1], orderAddresses[2], _data[2]);
                }

                require(price > _data[1], "Slippage hit onchain price");

                if (orderAddresses[1] == KYBER_ETH_ADDRESS) {
                    uint tRet;
                    (tRet,) = ExchangeInterface(wrapper).swapEtherToToken.value(tokens[1])(tokens[1], orderAddresses[2], uint(-1));
                    tokens[0] += tRet;
                } else {
                    ERC20(orderAddresses[1]).transfer(wrapper, tokens[1]);

                    if (orderAddresses[2] == KYBER_ETH_ADDRESS) {
                        tokens[0] += ExchangeInterface(wrapper).swapTokenToEther(orderAddresses[1], tokens[1], uint(-1));
                    } else {
                        tokens[0] += ExchangeInterface(wrapper).swapTokenToToken(orderAddresses[1], orderAddresses[2], tokens[1]);
                    }
                }
            }
        }

        return tokens[0];
    }

    
    
    
    
    
    function takeOrder(address[3] memory _addresses, bytes memory _data, uint _value, uint _amount) private returns(bool, uint, uint) {
        bool success;

        (success, ) = _addresses[0].call.value(_value)(_data);

        uint tokensLeft = _amount;
        uint tokensReturned = 0;
        if (success){
            
            if (_addresses[1] == KYBER_ETH_ADDRESS) {
                tokensLeft = address(this).balance;
            } else {
                tokensLeft = ERC20(_addresses[1]).balanceOf(address(this));
            }

            
            if (_addresses[2] == KYBER_ETH_ADDRESS) {
                TokenInterface(WETH_ADDRESS).withdraw(TokenInterface(WETH_ADDRESS).balanceOf(address(this)));
                tokensReturned = address(this).balance;
            } else {
                tokensReturned = ERC20(_addresses[2]).balanceOf(address(this));
            }
        }

        return (success, tokensReturned, tokensLeft);
    }

    
    
    function wethToKyberEth(address _src) internal pure returns (address) {
        return _src == WETH_ADDRESS ? KYBER_ETH_ADDRESS : _src;
    }
}

contract DSMath {
    function add(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require((z = x + y) >= x);
    }

    function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require((z = x - y) <= x);
    }

    function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        require(y == 0 || (z = x * y) / y == x);
    }

    function div(uint256 x, uint256 y) internal pure returns (uint256 z) {
        return x / y;
    }

    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        return x <= y ? x : y;
    }

    function max(uint256 x, uint256 y) internal pure returns (uint256 z) {
        return x >= y ? x : y;
    }

    function imin(int256 x, int256 y) internal pure returns (int256 z) {
        return x <= y ? x : y;
    }

    function imax(int256 x, int256 y) internal pure returns (int256 z) {
        return x >= y ? x : y;
    }

    uint256 constant WAD = 10**18;
    uint256 constant RAY = 10**27;

    function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, y), WAD / 2) / WAD;
    }

    function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, y), RAY / 2) / RAY;
    }

    function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, WAD), y / 2) / y;
    }

    function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = add(mul(x, RAY), y / 2) / y;
    }

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    function rpow(uint256 x, uint256 n) internal pure returns (uint256 z) {
        z = n % 2 != 0 ? x : RAY;

        for (n /= 2; n != 0; n /= 2) {
            x = rmul(x, x);

            if (n % 2 != 0) {
                z = rmul(z, x);
            }
        }
    }
}

contract DSAuthority {
    function canCall(address src, address dst, bytes4 sig) public view 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() public {
        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));
        _;
    }

    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(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);

        _;
    }
}

contract DSProxy is DSAuth, DSNote {
    DSProxyCache public cache; 

    constructor(address _cacheAddr) public {
        require(setCache(_cacheAddr));
    }

    function() external payable {}

    
    function execute(bytes memory _code, bytes memory _data)
        public
        payable
        returns (address target, bytes32 response)
    {
        target = cache.read(_code);
        if (target == address(0)) {
            
            target = cache.write(_code);
        }

        response = execute(target, _data);
    }

    function execute(address _target, bytes memory _data)
        public
        payable
        auth
        note
        returns (bytes32 response)
    {
        require(_target != address(0));

        
        assembly {
            let succeeded := delegatecall(
                sub(gas, 5000),
                _target,
                add(_data, 0x20),
                mload(_data),
                0,
                32
            )
            response := mload(0) 
            switch iszero(succeeded)
                case 1 {
                    
                    revert(0, 0)
                }
        }
    }

    
    function setCache(address _cacheAddr) public payable auth note returns (bool) {
        require(_cacheAddr != address(0)); 
        cache = DSProxyCache(_cacheAddr); 
        return true;
    }
}

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 {
                    
                    revert(0, 0)
                }
        }
        bytes32 hash = keccak256(_code);
        cache[hash] = target;
    }
}

contract Manager {
    function last(address) public returns (uint);
    function cdpCan(address, uint, address) public view returns (uint);
    function ilks(uint) public view returns (bytes32);
    function owns(uint) public view returns (address);
    function urns(uint) public view returns (address);
    function vat() public view returns (address);
    function open(bytes32, address) public returns (uint);
    function give(uint, address) public;
    function cdpAllow(uint, address, uint) public;
    function urnAllow(address, uint) public;
    function frob(uint, int, int) public;
    function flux(uint, address, uint) public;
    function move(uint, address, uint) public;
    function exit(address, uint, address, uint) public;
    function quit(uint, address) public;
    function enter(address, uint) public;
    function shift(uint, uint) public;
}

contract Join {
    bytes32 public ilk;

    function dec() public returns (uint);
    function gem() public returns (Gem);
    function join(address, uint) public payable;
    function exit(address, uint) public;
}

contract SaverProxyHelper is DSMath {

    
    
    
    
    function normalizeDrawAmount(uint _amount, uint _rate, uint _daiVatBalance) internal pure returns (int dart) {
        if (_daiVatBalance < mul(_amount, RAY)) {
            dart = toPositiveInt(sub(mul(_amount, RAY), _daiVatBalance) / _rate);
            dart = mul(uint(dart), _rate) < mul(_amount, RAY) ? dart + 1 : dart;
        }
    }

    
    
    function toRad(uint _wad) internal pure returns (uint) {
        return mul(_wad, 10 ** 27);
    }

    
    
    
    function convertTo18(address _joinAddr, uint256 _amount) internal returns (uint256) {
        return mul(_amount, 10 ** (18 - Join(_joinAddr).dec()));
    }

    
    
    function toPositiveInt(uint _x) internal pure returns (int y) {
        y = int(_x);
        require(y >= 0, "int-overflow");
    }

    
    
    
    
    function normalizePaybackAmount(address _vat, address _urn, bytes32 _ilk) internal view returns (int amount) {
        uint dai = Vat(_vat).dai(_urn);

        (, uint rate,,,) = Vat(_vat).ilks(_ilk);
        (, uint art) = Vat(_vat).urns(_ilk, _urn);

        amount = toPositiveInt(dai / rate);
        amount = uint(amount) <= art ? - amount : - toPositiveInt(art);
    }

    
    
    
    
    
    function getAllDebt(address _vat, address _usr, address _urn, bytes32 _ilk) internal view returns (uint daiAmount) {
        (, uint rate,,,) = Vat(_vat).ilks(_ilk);
        (, uint art) = Vat(_vat).urns(_ilk, _urn);
        uint dai = Vat(_vat).dai(_usr);

        uint rad = sub(mul(art, rate), dai);
        daiAmount = rad / RAY;

        daiAmount = mul(daiAmount, RAY) < rad ? daiAmount + 1 : daiAmount;
    }

    
    
    function getCollateralAddr(address _joinAddr) internal returns (address) {
        return address(Join(_joinAddr).gem());
    }

    
    
    
    
    function getCdpInfo(Manager _manager, uint _cdpId, bytes32 _ilk) public view returns (uint, uint) {
        address vat = _manager.vat();
        address urn = _manager.urns(_cdpId);

        (uint collateral, uint debt) = Vat(vat).urns(_ilk, urn);
        (,uint rate,,,) = Vat(vat).ilks(_ilk);

        return (collateral, rmul(debt, rate));
    }

    
    
    
    function getOwner(Manager _manager, uint _cdpId) public view returns (address) {
        DSProxy proxy = DSProxy(uint160(_manager.owns(_cdpId)));

        return proxy.owner();
    }
}

contract MCDSaverProxy is SaverProxyHelper, ExchangeHelper {

    uint public constant SERVICE_FEE = 400; 
    bytes32 public constant ETH_ILK = 0x4554482d41000000000000000000000000000000000000000000000000000000;
    bytes32 public constant USDC_ILK = 0x555344432d410000000000000000000000000000000000000000000000000000;

    Manager public constant manager = Manager(MANAGER_ADDRESS);
    Vat public constant vat = Vat(VAT_ADDRESS);
    DaiJoin public constant daiJoin = DaiJoin(DAI_JOIN_ADDRESS);
    Spotter public constant spotter = Spotter(SPOTTER_ADDRESS);

    
    
    modifier boostCheck(uint _cdpId) {
        bytes32 ilk = manager.ilks(_cdpId);
        address urn = manager.urns(_cdpId);

        (uint collateralBefore, ) = vat.urns(ilk, urn);

        _;

        (uint collateralAfter, ) = vat.urns(ilk, urn);

        require(collateralAfter > collateralBefore);
    }

    
    
    modifier repayCheck(uint _cdpId) {
        bytes32 ilk = manager.ilks(_cdpId);

        uint beforeRatio = getRatio(_cdpId, ilk);

        _;

        uint afterRatio = getRatio(_cdpId, ilk);

        require(afterRatio > beforeRatio || afterRatio == 0);
    }

    
    
    
    
    
    
    function repay(
        
        uint[6] memory _data,
        address _joinAddr,
        address _exchangeAddress,
        bytes memory _callData
    ) public payable repayCheck(_data[0]) {

        address owner = getOwner(manager, _data[0]);
        bytes32 ilk = manager.ilks(_data[0]);

        
        
        
        uint[3] memory temp;

        temp[0] = drawCollateral(_data[0], ilk, _joinAddr, _data[1]);

                                
        uint[4] memory swapData = [temp[0], _data[2], _data[3], _data[5]];
        temp[1] = swap(swapData, getCollateralAddr(_joinAddr), DAI_ADDRESS, _exchangeAddress, _callData);
        temp[2] = sub(temp[1], getFee(temp[1], _data[4], owner));

        paybackDebt(_data[0], ilk, temp[2], owner);

        
        if (address(this).balance > 0) {
            tx.origin.transfer(address(this).balance);
        }

        SaverLogger(LOGGER_ADDRESS).LogRepay(_data[0], owner, temp[0], temp[1]);
    }

    
    
    
    
    
    
    function boost(
        
        uint[6] memory _data,
        address _joinAddr,
        address _exchangeAddress,
        bytes memory _callData
    ) public payable boostCheck(_data[0]) {
        address owner = getOwner(manager, _data[0]);
        bytes32 ilk = manager.ilks(_data[0]);

        
        
        
        uint[3] memory temp;

        temp[0] = drawDai(_data[0], ilk, _data[1]);
        temp[1] = sub(temp[0], getFee(temp[0], _data[4], owner));
                                
        uint[4] memory swapData = [temp[1], _data[2], _data[3], _data[5]];
        temp[2] = swap(swapData, DAI_ADDRESS, getCollateralAddr(_joinAddr), _exchangeAddress, _callData);

        addCollateral(_data[0], _joinAddr, temp[2]);

        
        if (address(this).balance > 0) {
            tx.origin.transfer(address(this).balance);
        }

        SaverLogger(LOGGER_ADDRESS).LogBoost(_data[0], owner, temp[0], temp[2]);
    }

    
    
    
    
    
    function drawDai(uint _cdpId, bytes32 _ilk, uint _daiAmount) internal returns (uint) {
        uint rate = Jug(JUG_ADDRESS).drip(_ilk);
        uint daiVatBalance = vat.dai(manager.urns(_cdpId));

        uint maxAmount = getMaxDebt(_cdpId, _ilk);

        if (_daiAmount >= maxAmount) {
            _daiAmount = sub(maxAmount, 1);
        }

        manager.frob(_cdpId, int(0), normalizeDrawAmount(_daiAmount, rate, daiVatBalance));
        manager.move(_cdpId, address(this), toRad(_daiAmount));

        if (vat.can(address(this), address(DAI_JOIN_ADDRESS)) == 0) {
            vat.hope(DAI_JOIN_ADDRESS);
        }

        DaiJoin(DAI_JOIN_ADDRESS).exit(address(this), _daiAmount);

        return _daiAmount;
    }

    
    
    
    
    function addCollateral(uint _cdpId, address _joinAddr, uint _amount) internal {
        int convertAmount = 0;

        if (_joinAddr == ETH_JOIN_ADDRESS) {
            Join(_joinAddr).gem().deposit.value(_amount)();
            convertAmount = toPositiveInt(_amount);
        } else {
            convertAmount = toPositiveInt(convertTo18(_joinAddr, _amount));
        }

        Join(_joinAddr).gem().approve(_joinAddr, _amount);
        Join(_joinAddr).join(address(this), _amount);

        vat.frob(
            manager.ilks(_cdpId),
            manager.urns(_cdpId),
            address(this),
            address(this),
            convertAmount,
            0
        );

    }

    
    
    
    
    
    
    function drawCollateral(uint _cdpId, bytes32 _ilk, address _joinAddr, uint _amount) internal returns (uint) {
        uint maxCollateral = getMaxCollateral(_cdpId, _ilk);

        if (_amount >= maxCollateral) {
            _amount = sub(maxCollateral, 1);
        }

        uint frobAmount = _ilk == USDC_ILK ? _amount * (10 ** 12) : _amount;

        manager.frob(_cdpId, -toPositiveInt(frobAmount), 0);
        manager.flux(_cdpId, address(this), frobAmount);

        Join(_joinAddr).exit(address(this), _amount);

        if (_joinAddr == ETH_JOIN_ADDRESS) {
            Join(_joinAddr).gem().withdraw(_amount); 
        }

        return _amount;
    }

    
    
    
    
    
    
    function paybackDebt(uint _cdpId, bytes32 _ilk, uint _daiAmount, address _owner) internal {
        address urn = manager.urns(_cdpId);

        uint wholeDebt = getAllDebt(VAT_ADDRESS, urn, urn, _ilk);

        if (_daiAmount > wholeDebt) {
            ERC20(DAI_ADDRESS).transfer(_owner, sub(_daiAmount, wholeDebt));
            _daiAmount = wholeDebt;
        }

        daiJoin.dai().approve(DAI_JOIN_ADDRESS, _daiAmount);
        daiJoin.join(urn, _daiAmount);

        manager.frob(_cdpId, 0, normalizePaybackAmount(VAT_ADDRESS, urn, _ilk));
    }

    
    
    
    
    function getFee(uint _amount, uint _gasCost, address _owner) internal returns (uint feeAmount) {
        uint fee = SERVICE_FEE;

        if (Discount(DISCOUNT_ADDRESS).isCustomFeeSet(_owner)) {
            fee = Discount(DISCOUNT_ADDRESS).getCustomServiceFee(_owner);
        }

        feeAmount = (fee == 0) ? 0 : (_amount / fee);

        if (_gasCost != 0) {
            uint ethDaiPrice = getPrice(ETH_ILK);
            _gasCost = rmul(_gasCost, ethDaiPrice);

            feeAmount = add(feeAmount, _gasCost);
        }

        
        if (feeAmount > (_amount / 5)) {
            feeAmount = _amount / 5;
        }

        ERC20(DAI_ADDRESS).transfer(WALLET_ID, feeAmount);
    }

    
    
    
    
    function getMaxCollateral(uint _cdpId, bytes32 _ilk) public view returns (uint) {
        uint price = getPrice(_ilk);

        (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);

        (, uint mat) = Spotter(SPOTTER_ADDRESS).ilks(_ilk);

        uint maxCollateral = sub(sub(collateral, (div(mul(mat, debt), price))), 10);

        uint normalizeMaxCollateral = _ilk == USDC_ILK ? maxCollateral / (10 ** 12) : maxCollateral;

        return normalizeMaxCollateral;
    }

    
    
    
    
    function getMaxDebt(uint _cdpId, bytes32 _ilk) public view returns (uint) {
        uint price = getPrice(_ilk);

        (, uint mat) = spotter.ilks(_ilk);
        (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);

        return sub(sub(div(mul(collateral, price), mat), debt), 10);
    }

    
    
    function getPrice(bytes32 _ilk) public view returns (uint) {
        (, uint mat) = spotter.ilks(_ilk);
        (,,uint spot,,) = vat.ilks(_ilk);

        return rmul(rmul(spot, spotter.par()), mat);
    }

    
    
    
    function getRatio(uint _cdpId, bytes32 _ilk) public view returns (uint) {
        uint price = getPrice( _ilk);

        (uint collateral, uint debt) = getCdpInfo(manager, _cdpId, _ilk);

        if (debt == 0) return 0;

        return rdiv(wmul(collateral, price), debt);
    }

    
    
    function getCdpDetailedInfo(uint _cdpId) public view returns (uint collateral, uint debt, uint price, bytes32 ilk) {
        address urn = manager.urns(_cdpId);
        ilk = manager.ilks(_cdpId);

        (collateral, debt) = vat.urns(ilk, urn);
        (,uint rate,,,) = vat.ilks(ilk);

        debt = rmul(debt, rate);
        price = getPrice(ilk);
    }

}

library Address {
    
    function isContract(address account) internal view returns (bool) {
        
        
        
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    
    function toPayable(address account) internal pure returns (address payable) {
        return address(uint160(account));
    }

    
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        
        (bool success, ) = recipient.call.value(amount)("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}

interface IERC20 {
    
    function totalSupply() external view returns (uint256);

    
    function balanceOf(address account) external view returns (uint256);

    
    function transfer(address recipient, uint256 amount) external returns (bool);

    
    function allowance(address owner, address spender) external view returns (uint256);

    
    function approve(address spender, uint256 amount) external returns (bool);

    
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    
    event Transfer(address indexed from, address indexed to, uint256 value);

    
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

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) {
        
        
        
        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;
        

        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));
    }

    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        
        
        
        
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    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 {
        
        

        
        
        
        
        
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "SafeERC20: low-level call failed");

        if (returndata.length > 0) { 
            
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

interface IFlashLoanReceiver {

    function executeOperation(address _reserve, uint256 _amount, uint256 _fee, bytes calldata _params) external;
}

contract ILendingPoolAddressesProvider {

    function getLendingPool() public view returns (address);
    function setLendingPoolImpl(address _pool) public;

    function getLendingPoolCore() public view returns (address payable);
    function setLendingPoolCoreImpl(address _lendingPoolCore) public;

    function getLendingPoolConfigurator() public view returns (address);
    function setLendingPoolConfiguratorImpl(address _configurator) public;

    function getLendingPoolDataProvider() public view returns (address);
    function setLendingPoolDataProviderImpl(address _provider) public;

    function getLendingPoolParametersProvider() public view returns (address);
    function setLendingPoolParametersProviderImpl(address _parametersProvider) public;

    function getTokenDistributor() public view returns (address);
    function setTokenDistributor(address _tokenDistributor) public;


    function getFeeProvider() public view returns (address);
    function setFeeProviderImpl(address _feeProvider) public;

    function getLendingPoolLiquidationManager() public view returns (address);
    function setLendingPoolLiquidationManager(address _manager) public;

    function getLendingPoolManager() public view returns (address);
    function setLendingPoolManager(address _lendingPoolManager) public;

    function getPriceOracle() public view returns (address);
    function setPriceOracle(address _priceOracle) public;

    function getLendingRateOracle() public view returns (address);
    function setLendingRateOracle(address _lendingRateOracle) public;
}

library EthAddressLib {

    function ethAddress() internal pure returns(address) {
        return 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    }
}

contract FlashLoanReceiverBase is IFlashLoanReceiver {

    using SafeERC20 for IERC20;
    using SafeMath for uint256;

    ILendingPoolAddressesProvider public addressesProvider;

    constructor(ILendingPoolAddressesProvider _provider) public {
        addressesProvider = _provider;
    }

    function () external payable {
    }

    function transferFundsBackToPoolInternal(address _reserve, uint256 _amount) internal {

        address payable core = addressesProvider.getLendingPoolCore();

        transferInternal(core,_reserve, _amount);
    }

    function transferInternal(address payable _destination, address _reserve, uint256  _amount) internal {
        if(_reserve == EthAddressLib.ethAddress()) {
            
            _destination.call.value(_amount)("");
            return;
        }

        IERC20(_reserve).safeTransfer(_destination, _amount);


    }

    function getBalanceInternal(address _target, address _reserve) internal view returns(uint256) {
        if(_reserve == EthAddressLib.ethAddress()) {

            return _target.balance;
        }

        return IERC20(_reserve).balanceOf(_target);

    }
}

contract MCDSaverFlashLoan is MCDSaverProxy, FlashLoanReceiverBase {
    Manager public constant MANAGER = Manager(MANAGER_ADDRESS);

    ILendingPoolAddressesProvider public LENDING_POOL_ADDRESS_PROVIDER = ILendingPoolAddressesProvider(0x24a42fD28C976A61Df5D00D0599C34c4f90748c8);

    address payable public owner;

    constructor()
        FlashLoanReceiverBase(LENDING_POOL_ADDRESS_PROVIDER)
        public {
            owner = msg.sender;
        }

    function executeOperation(
        address _reserve,
        uint256 _amount,
        uint256 _fee,
        bytes calldata _params)
    external {

        
        require(_amount <= getBalanceInternal(address(this), _reserve),
            "Invalid balance for the contract");

        (
            uint[6] memory data,
            address joinAddr,
            address exchangeAddress,
            bytes memory callData,
            bool isRepay
        )
         = abi.decode(_params, (uint256[6],address,address,bytes,bool));

        if (isRepay) {
            repayWithLoan(data, _amount, joinAddr, exchangeAddress, callData, _fee);
        } else {
            boostWithLoan(data, _amount, joinAddr, exchangeAddress, callData, _fee);
        }

        transferFundsBackToPoolInternal(_reserve, _amount.add(_fee));

        
        if (address(this).balance > 0) {
            tx.origin.transfer(address(this).balance);
        }
    }

    function boostWithLoan(
        uint256[6] memory _data,
        uint256 _loanAmount,
        address _joinAddr,
        address _exchangeAddress,
        bytes memory _callData,
        uint _fee
    ) internal boostCheck(_data[0]) {

        
        
        uint[] memory amounts = new uint[](5);
        address owner = getOwner(MANAGER, _data[0]);

        
        amounts[0] = getMaxDebt(_data[0], manager.ilks(_data[0]));
        amounts[1] = drawDai(_data[0], MANAGER.ilks(_data[0]), amounts[0]);

        
        amounts[2] = getFee((amounts[1] + _loanAmount), 0, owner);
        amounts[3] = (amounts[1] + _loanAmount) - amounts[2];

        
        amounts[4] = swap(
            [amounts[3], _data[2], _data[3], _data[5]],
            DAI_ADDRESS,
            getCollateralAddr(_joinAddr),
            _exchangeAddress,
            _callData
        );

        
        addCollateral(_data[0], _joinAddr, amounts[4]);

        
        drawDai(_data[0],  manager.ilks(_data[0]), (_loanAmount + _fee));

        SaverLogger(LOGGER_ADDRESS).LogBoost(_data[0], owner, (amounts[1] + _loanAmount), amounts[4]);
    }

    function repayWithLoan(
        uint256[6] memory _data,
        uint256 _loanAmount,
        address _joinAddr,
        address _exchangeAddress,
        bytes memory _callData,
        uint _fee
    ) internal repayCheck(_data[0]) {

        
        
        uint[] memory amounts = new uint[](4);
        address owner = getOwner(MANAGER, _data[0]);

        
        amounts[0] = getMaxCollateral(_data[0], manager.ilks(_data[0]));
        amounts[1] = drawCollateral(_data[0], manager.ilks(_data[0]), _joinAddr, amounts[0]);

        
        amounts[2] = swap(
            [(amounts[1] + _loanAmount), _data[2], _data[3], _data[5]],
            getCollateralAddr(_joinAddr),
            DAI_ADDRESS,
            _exchangeAddress,
            _callData
        );

        
        amounts[3] = getFee(amounts[2], 0, owner);

        uint paybackAmount = (amounts[2] - amounts[3]);
        paybackAmount = limitLoanAmount(_data[0], manager.ilks(_data[0]), paybackAmount, owner);

        
        paybackDebt(_data[0], MANAGER.ilks(_data[0]), paybackAmount, owner);

        
        drawCollateral(_data[0], manager.ilks(_data[0]), _joinAddr, (_loanAmount + _fee));

        SaverLogger(LOGGER_ADDRESS).LogRepay(_data[0], owner, (amounts[1] + _loanAmount), amounts[2]);
    }

    function() external payable {}

    
    function limitLoanAmount(uint _cdpId, bytes32 _ilk, uint _paybackAmount, address _owner) internal returns (uint256) {
        uint debt = getAllDebt(address(vat), manager.urns(_cdpId), manager.urns(_cdpId), _ilk);

        if (_paybackAmount > debt) {
            ERC20(DAI_ADDRESS).transfer(_owner, (_paybackAmount - debt));
            return debt;
        }

        uint debtLeft = debt - _paybackAmount;

        
        if (debtLeft < 20 ether) {
            uint amountOverDust = ((20 ether) - debtLeft);

            ERC20(DAI_ADDRESS).transfer(_owner, amountOverDust);

            return (_paybackAmount - amountOverDust);
        }

        return _paybackAmount;
    }

    
    function withdrawStuckFunds(address _tokenAddr, uint _amount) public {
        require(msg.sender == owner, "Only owner");

        if (_tokenAddr == KYBER_ETH_ADDRESS) {
            owner.transfer(_amount);
        } else {
            ERC20(_tokenAddr).transfer(owner, _amount);
        }
    }
}

Contract Security Audit

Contract ABI

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Contract Creation Code

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.