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Contract

0xE608c2E1d45730D04b635dE1A78ce2B5A25025c6
 

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Harvest517537412022-12-02 3:33:25445 days 18 hrs ago1669952005IN
0xE608c2...A25025c6
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Harvest451222072022-08-17 20:50:17552 days 47 mins ago1660769417IN
0xE608c2...A25025c6
0 FTM0.000788741.518
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0xE608c2...A25025c6
0 FTM0.000518961.0408
Harvest450418572022-08-16 17:19:41553 days 4 hrs ago1660670381IN
0xE608c2...A25025c6
0 FTM0.000634381.2672
Harvest450061982022-08-16 5:07:46553 days 16 hrs ago1660626466IN
0xE608c2...A25025c6
0 FTM0.000706371.411
Harvest449704322022-08-15 16:41:19554 days 4 hrs ago1660581679IN
0xE608c2...A25025c6
0 FTM0.000696381.337
Harvest449383382022-08-15 5:27:40554 days 16 hrs ago1660541260IN
0xE608c2...A25025c6
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Harvest449076922022-08-14 19:03:34555 days 2 hrs ago1660503814IN
0xE608c2...A25025c6
0 FTM0.000675621.4029
Harvest448758192022-08-14 8:08:22555 days 13 hrs ago1660464502IN
0xE608c2...A25025c6
0 FTM0.000515631.03
Harvest448528992022-08-14 0:30:48555 days 21 hrs ago1660437048IN
0xE608c2...A25025c6
0 FTM0.000590091.154
Harvest448286102022-08-13 16:26:58556 days 5 hrs ago1660408018IN
0xE608c2...A25025c6
0 FTM0.000527351.055
Harvest447930732022-08-13 4:18:18556 days 17 hrs ago1660364298IN
0xE608c2...A25025c6
0 FTM0.000726391.45
Harvest447521392022-08-12 14:06:33557 days 7 hrs ago1660313193IN
0xE608c2...A25025c6
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Harvest447224552022-08-12 3:53:57557 days 17 hrs ago1660276437IN
0xE608c2...A25025c6
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Harvest446969632022-08-11 19:17:22558 days 2 hrs ago1660245442IN
0xE608c2...A25025c6
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0xE608c2...A25025c6
0 FTM0.000838771.6822
Harvest446392312022-08-10 22:38:02558 days 22 hrs ago1660171082IN
0xE608c2...A25025c6
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Harvest446056652022-08-10 10:24:56559 days 11 hrs ago1660127096IN
0xE608c2...A25025c6
0 FTM0.000786611.5776
Harvest445777492022-08-10 0:27:16559 days 21 hrs ago1660091236IN
0xE608c2...A25025c6
0 FTM0.000715731.4297
Harvest445507562022-08-09 15:06:03560 days 6 hrs ago1660057563IN
0xE608c2...A25025c6
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0xE608c2...A25025c6
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0xE608c2...A25025c6
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0xE608c2...A25025c6
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Harvest443942752022-08-07 6:55:45562 days 14 hrs ago1659855345IN
0xE608c2...A25025c6
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Harvest443671242022-08-06 21:39:18562 days 23 hrs ago1659821958IN
0xE608c2...A25025c6
0 FTM0.000838731.6754
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Parent Txn Hash Block From To Value
250305402021-12-15 12:01:34797 days 9 hrs ago1639569694  Contract Creation0 FTM
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Similar Match Source Code
This contract matches the deployed Bytecode of the Source Code for Contract 0x81AFc5...d4F40585
The constructor portion of the code might be different and could alter the actual behaviour of the contract

Contract Name:
MatrixLpAutoCompound

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, None license

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 8 : MatrixLpAutoCompound.sol
// File: @openzeppelin/contracts/utils/Pausable.sol
import "Ownable.sol";
import "Pausable.sol";
import "SafeERC20.sol";

pragma solidity ^0.6.0;

interface IUniswapRouterETH {
    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);

    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountToken, uint256 amountETH);

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

pragma solidity ^0.6.0;

interface IUniswapV2Pair {
    function token0() external view returns (address);

    function token1() external view returns (address);
}

pragma solidity ^0.6.0;

interface IMasterChef {
    function pendingSpirit(uint256 _pid, address _user)
        external
        view
        returns (uint256);

    function deposit(uint256 _pid, uint256 _amount) external;

    function withdraw(uint256 _pid, uint256 _amount) external;

    function userInfo(uint256 _pid, address _user)
        external
        view
        returns (uint256, uint256);

    function emergencyWithdraw(uint256 _pid) external;
}

pragma solidity ^0.6.0;

contract MatrixLpAutoCompound is Ownable, Pausable {
    using SafeERC20 for IERC20;
    using Address for address;
    using SafeMath for uint256;

    // Matrix contracts
    address public vault;
    address public treasury;

    // Tokens used
    address public wrapped = address(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83);
    address public output;
    address public want;
    address public lpToken0;
    address public lpToken1;

    /**
     * @dev Distribution of fees earned. This allocations relative to the % implemented on
     * Current implementation separates 5% for fees. Can be changed through the constructor
     * Inputs in constructor should be ratios between the Fee and Max Fee, divisble into percents by 10000
     *
     * {callFee} - Percent of the totalFee reserved for the harvester (1000 = 10% of total fee: 0.5% by default)
     * {treasuryFee} - Percent of the totalFee taken by maintainers of the software (9000 = 90% of total fee: 4.5% by default)
     * {securityFee} - Fee taxed when a user withdraws funds. Taken to prevent flash deposit/harvest attacks.
     * These funds are redistributed to stakers in the pool.
     *
     * {totalFee} - divided by 10,000 to determine the % fee. Set to 5% by default and
     * lowered as necessary to provide users with the most competitive APY.
     *
     * {MAX_FEE} - Maximum fee allowed by the strategy. Hard-capped at 5%.
     * {PERCENT_DIVISOR} - Constant used to safely calculate the correct percentages.
     */

    uint public callFee = 1000;
    uint public treasuryFee = 9000;
    uint public securityFee = 10;
    uint public totalFee = 450;
    uint constant public MAX_FEE = 500;
    uint constant  public PERCENT_DIVISOR = 10000;

    // Third party contracts
    address public unirouter;
    address public masterchef;
    uint256 public poolId;

    // Routes
    address[] public outputToWrappedRoute;
    address[] public outputToLp0Route;
    address[] public outputToLp1Route;
    address[] customPath;

    // Controllers
    bool public wrappedRoute = true;

    /**
     * {StratHarvest} Event that is fired each time someone harvests the strat.
     * {TotalFeeUpdated} Event that is fired each time the total fee is updated.
     * {CallFeeUpdated} Event that is fired each time the call fee is updated.
     */
    event StratHarvest(address indexed harvester);
    event TotalFeeUpdated(uint newFee);
    event CallFeeUpdated(uint newCallFee, uint newTreasuryFee);

    constructor(
        address _want,
        uint256 _poolId,
        address _masterChef,
        address _output,
        address _uniRouter,
        address _vault,
        address _treasury
    ) public {
        masterchef = _masterChef;
        unirouter = _uniRouter;
        want = _want;
        vault = _vault;
        treasury = _treasury;

        output = _output;
        outputToWrappedRoute =  [output, wrapped];

        lpToken0 = IUniswapV2Pair(want).token0();
        lpToken1 = IUniswapV2Pair(want).token1();
        poolId = _poolId;

        if (lpToken0 == wrapped) {
            outputToLp0Route = [output, wrapped];
        } else if (lpToken0 != output) {
            outputToLp0Route = [output, wrapped, lpToken0];
        }

        if (lpToken1 == wrapped) {
            outputToLp1Route = [output, wrapped];
        } else if (lpToken1 != output) {
            outputToLp1Route = [output, wrapped, lpToken1];
        }

        _giveAllowances();
    }

    /**
     * @dev Function to synchronize balances before new user deposit.
     * Can be overridden in the strategy.
     */
    function beforeDeposit() external virtual {}

    // puts the funds to work
    function deposit() public whenNotPaused {
        uint256 wantBal = IERC20(want).balanceOf(address(this));

           IMasterChef(masterchef).deposit(poolId, wantBal);  
    }

    function withdraw(uint256 _amount) external {
        require(msg.sender == vault, "!vault");

        uint256 pairBal = IERC20(want).balanceOf(address(this));

        if (pairBal < _amount) {
            IMasterChef(masterchef).withdraw(poolId, _amount.sub(pairBal));
            pairBal = IERC20(want).balanceOf(address(this));
        }

        if (pairBal > _amount) {
            pairBal = _amount;
        }
        uint256 withdrawFee = pairBal.mul(securityFee).div(PERCENT_DIVISOR);
        IERC20(want).safeTransfer(vault, pairBal.sub(withdrawFee));
    }

    // compounds earnings and charges performance fee
    function harvest() external whenNotPaused {
        require(!Address.isContract(msg.sender), "!contract");

        IMasterChef(masterchef).deposit(poolId, 0);
        chargeFees();
        addLiquidity();
        deposit();

        emit StratHarvest(msg.sender);
    }
    
    /**
     * @dev Takes out fees from the rewards. Set by constructor
     * callFeeToUser is set as a percentage of the fee,
     * as is treasuryFeeToVault
     */
    function chargeFees() internal {
        uint256 toWftm = IERC20(output).balanceOf(address(this)).mul(totalFee).div(PERCENT_DIVISOR);
        IUniswapRouterETH(unirouter).swapExactTokensForTokensSupportingFeeOnTransferTokens(toWftm, 0, outputToWrappedRoute, address(this), now.add(600));

        uint256 wftmBal = IERC20(wrapped).balanceOf(address(this));

        uint256 callFeeToUser = wftmBal.mul(callFee).div(PERCENT_DIVISOR);
        IERC20(wrapped).safeTransfer(msg.sender, callFeeToUser);

        uint256 treasuryFeeToVault = wftmBal.mul(treasuryFee).div(PERCENT_DIVISOR);
        IERC20(wrapped).safeTransfer(treasury, treasuryFeeToVault);
    }

    // Adds liquidity to AMM and gets more LP tokens.
    function addLiquidity() internal {
        uint256 outputHalf = IERC20(output).balanceOf(address(this)).div(2);

        if (lpToken0 != output) {
            if (wrappedRoute && lpToken0 != wrapped){
                outputToLp0Route = [output, wrapped, lpToken0];
            } else {
                outputToLp0Route = [output, lpToken0];
            }

            IUniswapRouterETH(unirouter).swapExactTokensForTokens(outputHalf, 0, outputToLp0Route, address(this), now);
        }

        if (lpToken1 != output) {
            if (wrappedRoute && lpToken1 != wrapped){
                outputToLp1Route = [output, wrapped, lpToken1];
            } else {
                outputToLp1Route = [output, lpToken1];
            }
            
            IUniswapRouterETH(unirouter).swapExactTokensForTokens(outputHalf, 0, outputToLp1Route, address(this), now);
        }

        uint256 lp0Bal = IERC20(lpToken0).balanceOf(address(this));
        uint256 lp1Bal = IERC20(lpToken1).balanceOf(address(this));
        IUniswapRouterETH(unirouter).addLiquidity(lpToken0, lpToken1, lp0Bal, lp1Bal, 1, 1, address(this), now);
    }

    // calculate the total underlaying 'want' held by the strat.
    function balanceOf() public view returns (uint256) {
        return balanceOfWant().add(balanceOfPool());
    }

    // it calculates how much 'want' this contract holds.
    function balanceOfWant() public view returns (uint256) {
        return IERC20(want).balanceOf(address(this));
    }

    // it calculates how much 'want' the strategy has working in the farm.
    function balanceOfPool() public view returns (uint256) {
        (uint256 _amount, ) = IMasterChef(masterchef).userInfo(poolId, address(this));
        return _amount;
    }

    // called as part of strat migration. Sends all the available funds back to the vault.
    function retireStrat() external {
        require(msg.sender == vault, "!vault");

        IMasterChef(masterchef).emergencyWithdraw(poolId);

        uint256 wantBal = IERC20(want).balanceOf(address(this));
        IERC20(want).transfer(vault, wantBal);
    }

    // pauses deposits and withdraws all funds from third party systems.
    function panic() public onlyOwner {
        pause();
        IMasterChef(masterchef).emergencyWithdraw(poolId);
    }

    function pause() public onlyOwner {
        _pause();

        _removeAllowances();
    }

    function unpause() external onlyOwner {
        _unpause();

        _giveAllowances();

        deposit();
    }

    function _giveAllowances() internal {
        IERC20(want).safeApprove(masterchef, uint256(-1));
        IERC20(output).safeApprove(unirouter, uint256(-1));

        IERC20(lpToken0).safeApprove(unirouter, 0);
        IERC20(lpToken0).safeApprove(unirouter, uint256(-1));

        IERC20(lpToken1).safeApprove(unirouter, 0);
        IERC20(lpToken1).safeApprove(unirouter, uint256(-1));
    }

    function _removeAllowances() internal {
        IERC20(want).safeApprove(masterchef, 0);
        IERC20(output).safeApprove(unirouter, 0);
        IERC20(lpToken0).safeApprove(unirouter, 0);
        IERC20(lpToken1).safeApprove(unirouter, 0);
    }

    function setWrappedRoute(bool _bool) external onlyOwner {
        wrappedRoute = _bool;
    }

    // This function exists incase tokens that do not match the want of this strategy accrue.  For example: an amount of
    // tokens sent to this address in the form of an airdrop of a different token type.  This will allow us to convert
    // this token to the want-token of the strategy, allowing the amount to be paid out to stakers in the matching vault.
    function makeCustomTxn(address _fromToken, address _toToken, address _unirouter, uint256 _amount) external onlyOwner {
        require(_fromToken != want, 'cannot swap want token');
        approveTxnIfNeeded(_fromToken, _unirouter, _amount);

        customPath = [_fromToken, _toToken];

        IUniswapRouterETH(_unirouter).swapExactTokensForTokens(_amount, 0, customPath, address(this), now.add(600));
    }

    function approveTxnIfNeeded(address _token, address _unirouter, uint256 _amount) internal {
        if (IERC20(_token).allowance(address(this), _unirouter) < _amount) {
            IERC20(_token).safeApprove(_unirouter, uint256(0));
            IERC20(_token).safeApprove(_unirouter, uint256(-1));
        }
    }

    /**
     * @dev updates the total fee, capped at 5%
     */
    function updateTotalFee(uint _totalFee) external onlyOwner returns (bool) {
      require(_totalFee <= MAX_FEE, "Fee Too High");
      totalFee = _totalFee;
      emit TotalFeeUpdated(totalFee);
      return true;
    }

    /**
     * @dev updates the call fee and adjusts the treasury fee to cover the difference
     */
    function updateCallFee(uint _callFee) external onlyOwner returns (bool) {
      callFee = _callFee;
      treasuryFee = PERCENT_DIVISOR.sub(callFee);
      emit CallFeeUpdated(callFee, treasuryFee);
      return true;
    }

    function updateTreasury(address newTreasury) external onlyOwner returns (bool) {
      treasury = newTreasury;
      return true;
    }
}

File 2 of 8 : Ownable.sol
import "Context.sol";

pragma solidity ^0.6.0;

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

File 3 of 8 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 4 of 8 : Pausable.sol
import "Context.sol";

pragma solidity ^0.6.0;

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */

contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() internal {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!_paused, "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(_paused, "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

File 5 of 8 : SafeERC20.sol
import "SafeMath.sol";
import "Address.sol";
import "IERC20.sol";

pragma solidity ^0.6.0;

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using 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 Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        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
            )
        );
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

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

File 6 of 8 : SafeMath.sol
pragma solidity ^0.6.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    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;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be 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;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

File 7 of 8 : Address.sol
pragma solidity ^0.6.2;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies in extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(
            address(this).balance >= amount,
            "Address: insufficient balance"
        );

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{value: amount}("");
        require(
            success,
            "Address: unable to send value, recipient may have reverted"
        );
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data)
        internal
        returns (bytes memory)
    {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return
            functionCallWithValue(
                target,
                data,
                value,
                "Address: low-level call with value failed"
            );
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(
            address(this).balance >= value,
            "Address: insufficient balance for call"
        );
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(
        address target,
        bytes memory data,
        uint256 weiValue,
        string memory errorMessage
    ) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // 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);
            }
        }
    }
}

File 8 of 8 : IERC20.sol
pragma solidity ^0.6.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @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
    );
}

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

Contract Security Audit

Contract ABI

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"},{"inputs":[],"name":"securityFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bool","name":"_bool","type":"bool"}],"name":"setWrappedRoute","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"totalFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasury","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"treasuryFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unirouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_callFee","type":"uint256"}],"name":"updateCallFee","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_totalFee","type":"uint256"}],"name":"updateTotalFee","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newTreasury","type":"address"}],"name":"updateTreasury","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"want","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"wrapped","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wrappedRoute","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"}]

Deployed Bytecode

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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.