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0x3dAA2795e12736D892418b61CB46BF2d14c692D7

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0x7fb85Bab...16747778d at txn 0xd0a9d7fd58c4d26810216af949ab03903877c001b3d6cf6719e8f9fba7398ea1

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	Transaction Hash	Method	Block		From		To
	0x8711f004baf26b1c2708061932e2aaf3df45ea23932c5183174412b92c9668d8	Set Aave Migrati...	12321231	2021-04-27 8:13:56	1397 days ago	1619511236	0x7fb85Bab...16747778d	IN	0x3dAA2795...d14c692D7	0 ETH$0.00	0.0014507	50

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Contract Source Code Verified (Exact Match)

Contract Name:

AaveMigrationReceiver

Compiler Version

v0.6.12+commit.27d51765

Optimization Enabled:

Yes with 200 runs

Other Settings:

default evmVersion, MIT license

Contract Source Code (Solidity)

IDE

/**
 *Submitted for verification at Etherscan.io on 2021-04-27
*/

pragma solidity ^0.6.0;
pragma experimental ABIEncoderV2;

   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);
}   library Address {
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    function sendValue(address payable recipient, uint256 amount) internal {
        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");
    }

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

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

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

    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        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);
            }
        }
    }
}   library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

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

        return c;
    }

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

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}   library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(ERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(ERC20 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.
     */
    function safeApprove(ERC20 token, address spender, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(ERC20 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(ERC20 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(ERC20 token, bytes memory data) private {

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}   abstract contract DSAuthority {
    function canCall(address src, address dst, bytes4 sig) public virtual 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);

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

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

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

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

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

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


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

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

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

    using SafeERC20 for ERC20;

    address public owner;
    address public admin;

    modifier onlyOwner() {
        require(owner == msg.sender);
        _;
    }

    modifier onlyAdmin() {
        require(admin == msg.sender);
        _;
    }

    constructor() public {
        owner = msg.sender;
        admin = 0x25eFA336886C74eA8E282ac466BdCd0199f85BB9;
    }

    /// @notice Admin is set by owner first time, after that admin is super role and has permission to change owner
    /// @param _admin Address of multisig that becomes admin
    function setAdminByOwner(address _admin) public {
        require(msg.sender == owner);
        require(admin == address(0));

        admin = _admin;
    }

    /// @notice Admin is able to set new admin
    /// @param _admin Address of multisig that becomes new admin
    function setAdminByAdmin(address _admin) public {
        require(msg.sender == admin);

        admin = _admin;
    }

    /// @notice Admin is able to change owner
    /// @param _owner Address of new owner
    function setOwnerByAdmin(address _owner) public {
        require(msg.sender == admin);

        owner = _owner;
    }

    /// @notice Destroy the contract
    function kill() public onlyOwner {
        selfdestruct(payable(owner));
    }

    /// @notice  withdraw stuck funds
    function withdrawStuckFunds(address _token, uint _amount) public onlyOwner {
        if (_token == 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE) {
            payable(owner).transfer(_amount);
        } else {
            ERC20(_token).safeTransfer(owner, _amount);
        }
    }
}   



abstract contract IAaveProtocolDataProviderV2 {

  struct TokenData {
    string symbol;
    address tokenAddress;
  }

  function getAllReservesTokens() external virtual view returns (TokenData[] memory);

  function getAllATokens() external virtual view returns (TokenData[] memory);

  function getReserveConfigurationData(address asset)
    external virtual
    view
    returns (
      uint256 decimals,
      uint256 ltv,
      uint256 liquidationThreshold,
      uint256 liquidationBonus,
      uint256 reserveFactor,
      bool usageAsCollateralEnabled,
      bool borrowingEnabled,
      bool stableBorrowRateEnabled,
      bool isActive,
      bool isFrozen
    );

  function getReserveData(address asset)
    external virtual
    view
    returns (
      uint256 availableLiquidity,
      uint256 totalStableDebt,
      uint256 totalVariableDebt,
      uint256 liquidityRate,
      uint256 variableBorrowRate,
      uint256 stableBorrowRate,
      uint256 averageStableBorrowRate,
      uint256 liquidityIndex,
      uint256 variableBorrowIndex,
      uint40 lastUpdateTimestamp
    );

  function getUserReserveData(address asset, address user)
    external virtual
    view
    returns (
      uint256 currentATokenBalance,
      uint256 currentStableDebt,
      uint256 currentVariableDebt,
      uint256 principalStableDebt,
      uint256 scaledVariableDebt,
      uint256 stableBorrowRate,
      uint256 liquidityRate,
      uint40 stableRateLastUpdated,
      bool usageAsCollateralEnabled
    );

  function getReserveTokensAddresses(address asset)
    external virtual
    view
    returns (
      address aTokenAddress,
      address stableDebtTokenAddress,
      address variableDebtTokenAddress
    );
}  

   

/**
 * @title LendingPoolAddressesProvider contract
 * @dev Main registry of addresses part of or connected to the protocol, including permissioned roles
 * - Acting also as factory of proxies and admin of those, so with right to change its implementations
 * - Owned by the Aave Governance
 * @author Aave
 **/
interface ILendingPoolAddressesProviderV2 {
  event LendingPoolUpdated(address indexed newAddress);
  event ConfigurationAdminUpdated(address indexed newAddress);
  event EmergencyAdminUpdated(address indexed newAddress);
  event LendingPoolConfiguratorUpdated(address indexed newAddress);
  event LendingPoolCollateralManagerUpdated(address indexed newAddress);
  event PriceOracleUpdated(address indexed newAddress);
  event LendingRateOracleUpdated(address indexed newAddress);
  event ProxyCreated(bytes32 id, address indexed newAddress);
  event AddressSet(bytes32 id, address indexed newAddress, bool hasProxy);

  function setAddress(bytes32 id, address newAddress) external;

  function setAddressAsProxy(bytes32 id, address impl) external;

  function getAddress(bytes32 id) external view returns (address);

  function getLendingPool() external view returns (address);

  function setLendingPoolImpl(address pool) external;

  function getLendingPoolConfigurator() external view returns (address);

  function setLendingPoolConfiguratorImpl(address configurator) external;

  function getLendingPoolCollateralManager() external view returns (address);

  function setLendingPoolCollateralManager(address manager) external;

  function getPoolAdmin() external view returns (address);

  function setPoolAdmin(address admin) external;

  function getEmergencyAdmin() external view returns (address);

  function setEmergencyAdmin(address admin) external;

  function getPriceOracle() external view returns (address);

  function setPriceOracle(address priceOracle) external;

  function getLendingRateOracle() external view returns (address);

  function setLendingRateOracle(address lendingRateOracle) external;
}

library DataTypes {
  // refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties.
  struct ReserveData {
    //stores the reserve configuration
    ReserveConfigurationMap configuration;
    //the liquidity index. Expressed in ray
    uint128 liquidityIndex;
    //variable borrow index. Expressed in ray
    uint128 variableBorrowIndex;
    //the current supply rate. Expressed in ray
    uint128 currentLiquidityRate;
    //the current variable borrow rate. Expressed in ray
    uint128 currentVariableBorrowRate;
    //the current stable borrow rate. Expressed in ray
    uint128 currentStableBorrowRate;
    uint40 lastUpdateTimestamp;
    //tokens addresses
    address aTokenAddress;
    address stableDebtTokenAddress;
    address variableDebtTokenAddress;
    //address of the interest rate strategy
    address interestRateStrategyAddress;
    //the id of the reserve. Represents the position in the list of the active reserves
    uint8 id;
  }

  struct ReserveConfigurationMap {
    //bit 0-15: LTV
    //bit 16-31: Liq. threshold
    //bit 32-47: Liq. bonus
    //bit 48-55: Decimals
    //bit 56: Reserve is active
    //bit 57: reserve is frozen
    //bit 58: borrowing is enabled
    //bit 59: stable rate borrowing enabled
    //bit 60-63: reserved
    //bit 64-79: reserve factor
    uint256 data;
  }

  struct UserConfigurationMap {
    uint256 data;
  }

  enum InterestRateMode {NONE, STABLE, VARIABLE}
}

interface ILendingPoolV2 {
  /**
   * @dev Emitted on deposit()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address initiating the deposit
   * @param onBehalfOf The beneficiary of the deposit, receiving the aTokens
   * @param amount The amount deposited
   * @param referral The referral code used
   **/
  event Deposit(
    address indexed reserve,
    address user,
    address indexed onBehalfOf,
    uint256 amount,
    uint16 indexed referral
  );

  /**
   * @dev Emitted on withdraw()
   * @param reserve The address of the underlyng asset being withdrawn
   * @param user The address initiating the withdrawal, owner of aTokens
   * @param to Address that will receive the underlying
   * @param amount The amount to be withdrawn
   **/
  event Withdraw(address indexed reserve, address indexed user, address indexed to, uint256 amount);

  /**
   * @dev Emitted on borrow() and flashLoan() when debt needs to be opened
   * @param reserve The address of the underlying asset being borrowed
   * @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just
   * initiator of the transaction on flashLoan()
   * @param onBehalfOf The address that will be getting the debt
   * @param amount The amount borrowed out
   * @param borrowRateMode The rate mode: 1 for Stable, 2 for Variable
   * @param borrowRate The numeric rate at which the user has borrowed
   * @param referral The referral code used
   **/
  event Borrow(
    address indexed reserve,
    address user,
    address indexed onBehalfOf,
    uint256 amount,
    uint256 borrowRateMode,
    uint256 borrowRate,
    uint16 indexed referral
  );

  /**
   * @dev Emitted on repay()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The beneficiary of the repayment, getting his debt reduced
   * @param repayer The address of the user initiating the repay(), providing the funds
   * @param amount The amount repaid
   **/
  event Repay(
    address indexed reserve,
    address indexed user,
    address indexed repayer,
    uint256 amount
  );

  /**
   * @dev Emitted on swapBorrowRateMode()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user swapping his rate mode
   * @param rateMode The rate mode that the user wants to swap to
   **/
  event Swap(address indexed reserve, address indexed user, uint256 rateMode);

  /**
   * @dev Emitted on setUserUseReserveAsCollateral()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user enabling the usage as collateral
   **/
  event ReserveUsedAsCollateralEnabled(address indexed reserve, address indexed user);

  /**
   * @dev Emitted on setUserUseReserveAsCollateral()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user enabling the usage as collateral
   **/
  event ReserveUsedAsCollateralDisabled(address indexed reserve, address indexed user);

  /**
   * @dev Emitted on rebalanceStableBorrowRate()
   * @param reserve The address of the underlying asset of the reserve
   * @param user The address of the user for which the rebalance has been executed
   **/
  event RebalanceStableBorrowRate(address indexed reserve, address indexed user);

  /**
   * @dev Emitted on flashLoan()
   * @param target The address of the flash loan receiver contract
   * @param initiator The address initiating the flash loan
   * @param asset The address of the asset being flash borrowed
   * @param amount The amount flash borrowed
   * @param premium The fee flash borrowed
   * @param referralCode The referral code used
   **/
  event FlashLoan(
    address indexed target,
    address indexed initiator,
    address indexed asset,
    uint256 amount,
    uint256 premium,
    uint16 referralCode
  );

  /**
   * @dev Emitted when the pause is triggered.
   */
  event Paused();

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

  /**
   * @dev Emitted when a borrower is liquidated. This event is emitted by the LendingPool via
   * LendingPoolCollateral manager using a DELEGATECALL
   * This allows to have the events in the generated ABI for LendingPool.
   * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
   * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
   * @param user The address of the borrower getting liquidated
   * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
   * @param liquidatedCollateralAmount The amount of collateral received by the liiquidator
   * @param liquidator The address of the liquidator
   * @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants
   * to receive the underlying collateral asset directly
   **/
  event LiquidationCall(
    address indexed collateralAsset,
    address indexed debtAsset,
    address indexed user,
    uint256 debtToCover,
    uint256 liquidatedCollateralAmount,
    address liquidator,
    bool receiveAToken
  );

  /**
   * @dev Emitted when the state of a reserve is updated. NOTE: This event is actually declared
   * in the ReserveLogic library and emitted in the updateInterestRates() function. Since the function is internal,
   * the event will actually be fired by the LendingPool contract. The event is therefore replicated here so it
   * gets added to the LendingPool ABI
   * @param reserve The address of the underlying asset of the reserve
   * @param liquidityRate The new liquidity rate
   * @param stableBorrowRate The new stable borrow rate
   * @param variableBorrowRate The new variable borrow rate
   * @param liquidityIndex The new liquidity index
   * @param variableBorrowIndex The new variable borrow index
   **/
  event ReserveDataUpdated(
    address indexed reserve,
    uint256 liquidityRate,
    uint256 stableBorrowRate,
    uint256 variableBorrowRate,
    uint256 liquidityIndex,
    uint256 variableBorrowIndex
  );

  /**
   * @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
   * - E.g. User deposits 100 USDC and gets in return 100 aUSDC
   * @param asset The address of the underlying asset to deposit
   * @param amount The amount to be deposited
   * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
   *   wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
   *   is a different wallet
   * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   **/
  function deposit(
    address asset,
    uint256 amount,
    address onBehalfOf,
    uint16 referralCode
  ) external;

  /**
   * @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
   * E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
   * @param asset The address of the underlying asset to withdraw
   * @param amount The underlying amount to be withdrawn
   *   - Send the value type(uint256).max in order to withdraw the whole aToken balance
   * @param to Address that will receive the underlying, same as msg.sender if the user
   *   wants to receive it on his own wallet, or a different address if the beneficiary is a
   *   different wallet
   **/
  function withdraw(
    address asset,
    uint256 amount,
    address to
  ) external;

  /**
   * @dev Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
   * already deposited enough collateral, or he was given enough allowance by a credit delegator on the
   * corresponding debt token (StableDebtToken or VariableDebtToken)
   * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
   *   and 100 stable/variable debt tokens, depending on the `interestRateMode`
   * @param asset The address of the underlying asset to borrow
   * @param amount The amount to be borrowed
   * @param interestRateMode The interest rate mode at which the user wants to borrow: 1 for Stable, 2 for Variable
   * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   * @param onBehalfOf Address of the user who will receive the debt. Should be the address of the borrower itself
   * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator
   * if he has been given credit delegation allowance
   **/
  function borrow(
    address asset,
    uint256 amount,
    uint256 interestRateMode,
    uint16 referralCode,
    address onBehalfOf
  ) external;

  /**
   * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
   * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address
   * @param asset The address of the borrowed underlying asset previously borrowed
   * @param amount The amount to repay
   * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
   * @param rateMode The interest rate mode at of the debt the user wants to repay: 1 for Stable, 2 for Variable
   * @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the
   * user calling the function if he wants to reduce/remove his own debt, or the address of any other
   * other borrower whose debt should be removed
   **/
  function repay(
    address asset,
    uint256 amount,
    uint256 rateMode,
    address onBehalfOf
  ) external;

  /**
   * @dev Allows a borrower to swap his debt between stable and variable mode, or viceversa
   * @param asset The address of the underlying asset borrowed
   * @param rateMode The rate mode that the user wants to swap to
   **/
  function swapBorrowRateMode(address asset, uint256 rateMode) external;

  /**
   * @dev Rebalances the stable interest rate of a user to the current stable rate defined on the reserve.
   * - Users can be rebalanced if the following conditions are satisfied:
   *     1. Usage ratio is above 95%
   *     2. the current deposit APY is below REBALANCE_UP_THRESHOLD * maxVariableBorrowRate, which means that too much has been
   *        borrowed at a stable rate and depositors are not earning enough
   * @param asset The address of the underlying asset borrowed
   * @param user The address of the user to be rebalanced
   **/
  function rebalanceStableBorrowRate(address asset, address user) external;

  /**
   * @dev Allows depositors to enable/disable a specific deposited asset as collateral
   * @param asset The address of the underlying asset deposited
   * @param useAsCollateral `true` if the user wants to use the deposit as collateral, `false` otherwise
   **/
  function setUserUseReserveAsCollateral(address asset, bool useAsCollateral) external;

  /**
   * @dev Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1
   * - The caller (liquidator) covers `debtToCover` amount of debt of the user getting liquidated, and receives
   *   a proportionally amount of the `collateralAsset` plus a bonus to cover market risk
   * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
   * @param debtAsset The address of the underlying borrowed asset to be repaid with the liquidation
   * @param user The address of the borrower getting liquidated
   * @param debtToCover The debt amount of borrowed `asset` the liquidator wants to cover
   * @param receiveAToken `true` if the liquidators wants to receive the collateral aTokens, `false` if he wants
   * to receive the underlying collateral asset directly
   **/
  function liquidationCall(
    address collateralAsset,
    address debtAsset,
    address user,
    uint256 debtToCover,
    bool receiveAToken
  ) external;

  /**
   * @dev Allows smartcontracts to access the liquidity of the pool within one transaction,
   * as long as the amount taken plus a fee is returned.
   * IMPORTANT There are security concerns for developers of flashloan receiver contracts that must be kept into consideration.
   * For further details please visit https://developers.aave.com
   * @param receiverAddress The address of the contract receiving the funds, implementing the IFlashLoanReceiver interface
   * @param assets The addresses of the assets being flash-borrowed
   * @param amounts The amounts amounts being flash-borrowed
   * @param modes Types of the debt to open if the flash loan is not returned:
   *   0 -> Don't open any debt, just revert if funds can't be transferred from the receiver
   *   1 -> Open debt at stable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
   *   2 -> Open debt at variable rate for the value of the amount flash-borrowed to the `onBehalfOf` address
   * @param onBehalfOf The address  that will receive the debt in the case of using on `modes` 1 or 2
   * @param params Variadic packed params to pass to the receiver as extra information
   * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
   *   0 if the action is executed directly by the user, without any middle-man
   **/
  function flashLoan(
    address receiverAddress,
    address[] calldata assets,
    uint256[] calldata amounts,
    uint256[] calldata modes,
    address onBehalfOf,
    bytes calldata params,
    uint16 referralCode
  ) external;

  /**
   * @dev Returns the user account data across all the reserves
   * @param user The address of the user
   * @return totalCollateralETH the total collateral in ETH of the user
   * @return totalDebtETH the total debt in ETH of the user
   * @return availableBorrowsETH the borrowing power left of the user
   * @return currentLiquidationThreshold the liquidation threshold of the user
   * @return ltv the loan to value of the user
   * @return healthFactor the current health factor of the user
   **/
  function getUserAccountData(address user)
    external
    view
    returns (
      uint256 totalCollateralETH,
      uint256 totalDebtETH,
      uint256 availableBorrowsETH,
      uint256 currentLiquidationThreshold,
      uint256 ltv,
      uint256 healthFactor
    );

  function initReserve(
    address reserve,
    address aTokenAddress,
    address stableDebtAddress,
    address variableDebtAddress,
    address interestRateStrategyAddress
  ) external;

  function setReserveInterestRateStrategyAddress(address reserve, address rateStrategyAddress)
    external;

  function setConfiguration(address reserve, uint256 configuration) external;

  /**
   * @dev Returns the configuration of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The configuration of the reserve
   **/
  function getConfiguration(address asset) external view returns (DataTypes.ReserveConfigurationMap memory);

  /**
   * @dev Returns the configuration of the user across all the reserves
   * @param user The user address
   * @return The configuration of the user
   **/
  function getUserConfiguration(address user) external view returns (DataTypes.UserConfigurationMap memory);

  /**
   * @dev Returns the normalized income normalized income of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The reserve's normalized income
   */
  function getReserveNormalizedIncome(address asset) external view returns (uint256);

  /**
   * @dev Returns the normalized variable debt per unit of asset
   * @param asset The address of the underlying asset of the reserve
   * @return The reserve normalized variable debt
   */
  function getReserveNormalizedVariableDebt(address asset) external view returns (uint256);

  /**
   * @dev Returns the state and configuration of the reserve
   * @param asset The address of the underlying asset of the reserve
   * @return The state of the reserve
   **/
  function getReserveData(address asset) external view returns (DataTypes.ReserveData memory);

  function finalizeTransfer(
    address asset,
    address from,
    address to,
    uint256 amount,
    uint256 balanceFromAfter,
    uint256 balanceToBefore
  ) external;

  function getReservesList() external view returns (address[] memory);

  function getAddressesProvider() external view returns (ILendingPoolAddressesProviderV2);

  function setPause(bool val) external;

  function paused() external view returns (bool);
}   abstract contract TokenInterface {
	address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    
    function allowance(address, address) public virtual returns (uint256);

    function balanceOf(address) public virtual returns (uint256);

    function approve(address, uint256) public virtual;

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

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

    function deposit() public virtual payable;

    function withdraw(uint256) public virtual;
}   abstract contract IAToken {
    function redeem(uint256 _amount) external virtual;
    function balanceOf(address _owner) external virtual view returns (uint256 balance);
}   abstract contract ILendingPool {
    function flashLoan( address payable _receiver, address _reserve, uint _amount, bytes calldata _params) external virtual;
    function deposit(address _reserve, uint256 _amount, uint16 _referralCode) external virtual payable;
	function setUserUseReserveAsCollateral(address _reserve, bool _useAsCollateral) external virtual;
	function borrow(address _reserve, uint256 _amount, uint256 _interestRateMode, uint16 _referralCode) external virtual;
	function repay( address _reserve, uint256 _amount, address payable _onBehalfOf) external virtual payable;
	function swapBorrowRateMode(address _reserve) external virtual;
    function getReserves() external virtual view returns(address[] memory);

    /// @param _reserve underlying token address
    function getReserveData(address _reserve)
        external virtual
        view
        returns (
            uint256 totalLiquidity,               // reserve total liquidity
            uint256 availableLiquidity,           // reserve available liquidity for borrowing
            uint256 totalBorrowsStable,           // total amount of outstanding borrows at Stable rate
            uint256 totalBorrowsVariable,         // total amount of outstanding borrows at Variable rate
            uint256 liquidityRate,                // current deposit APY of the reserve for depositors, in Ray units.
            uint256 variableBorrowRate,           // current variable rate APY of the reserve pool, in Ray units.
            uint256 stableBorrowRate,             // current stable rate APY of the reserve pool, in Ray units.
            uint256 averageStableBorrowRate,      // current average stable borrow rate
            uint256 utilizationRate,              // expressed as total borrows/total liquidity.
            uint256 liquidityIndex,               // cumulative liquidity index
            uint256 variableBorrowIndex,          // cumulative variable borrow index
            address aTokenAddress,                // aTokens contract address for the specific _reserve
            uint40 lastUpdateTimestamp            // timestamp of the last update of reserve data
        );

    /// @param _user users address
    function getUserAccountData(address _user)
        external virtual
        view
        returns (
            uint256 totalLiquidityETH,            // user aggregated deposits across all the reserves. In Wei
            uint256 totalCollateralETH,           // user aggregated collateral across all the reserves. In Wei
            uint256 totalBorrowsETH,              // user aggregated outstanding borrows across all the reserves. In Wei
            uint256 totalFeesETH,                 // user aggregated current outstanding fees in ETH. In Wei
            uint256 availableBorrowsETH,          // user available amount to borrow in ETH
            uint256 currentLiquidationThreshold,  // user current average liquidation threshold across all the collaterals deposited
            uint256 ltv,                          // user average Loan-to-Value between all the collaterals
            uint256 healthFactor                  // user current Health Factor
    );

    /// @param _reserve underlying token address
    /// @param _user users address
    function getUserReserveData(address _reserve, address _user)
        external virtual
        view
        returns (
            uint256 currentATokenBalance,         // user current reserve aToken balance
            uint256 currentBorrowBalance,         // user current reserve outstanding borrow balance
            uint256 principalBorrowBalance,       // user balance of borrowed asset
            uint256 borrowRateMode,               // user borrow rate mode either Stable or Variable
            uint256 borrowRate,                   // user current borrow rate APY
            uint256 liquidityRate,                // user current earn rate on _reserve
            uint256 originationFee,               // user outstanding loan origination fee
            uint256 variableBorrowIndex,          // user variable cumulative index
            uint256 lastUpdateTimestamp,          // Timestamp of the last data update
            bool usageAsCollateralEnabled         // Whether the user's current reserve is enabled as a collateral
    );

    function getReserveConfigurationData(address _reserve)
        external virtual
        view
        returns (
            uint256 ltv,
            uint256 liquidationThreshold,
            uint256 liquidationBonus,
            address rateStrategyAddress,
            bool usageAsCollateralEnabled,
            bool borrowingEnabled,
            bool stableBorrowRateEnabled,
            bool isActive
    );

    // ------------------ LendingPoolCoreData ------------------------
    function getReserveATokenAddress(address _reserve) public virtual view returns (address);
    function getReserveConfiguration(address _reserve)
        external virtual
        view
        returns (uint256, uint256, uint256, bool);
    function getUserUnderlyingAssetBalance(address _reserve, address _user)
        public virtual
        view
        returns (uint256);

    function getReserveCurrentLiquidityRate(address _reserve)
        public virtual
        view
        returns (uint256);
    function getReserveCurrentVariableBorrowRate(address _reserve)
        public virtual
        view
        returns (uint256);
    function getReserveCurrentStableBorrowRate(address _reserve)
        public virtual
        view
        returns (uint256);
    function getReserveTotalLiquidity(address _reserve)
        public virtual
        view
        returns (uint256);
    function getReserveAvailableLiquidity(address _reserve)
        public virtual
        view
        returns (uint256);
    function getReserveTotalBorrowsVariable(address _reserve)
        public virtual
        view
        returns (uint256);
    function getReserveTotalBorrowsStable(address _reserve)
        public virtual
        view
        returns (uint256);

    // ---------------- LendingPoolDataProvider ---------------------
    function calculateUserGlobalData(address _user)
        public virtual
        view
        returns (
            uint256 totalLiquidityBalanceETH,
            uint256 totalCollateralBalanceETH,
            uint256 totalBorrowBalanceETH,
            uint256 totalFeesETH,
            uint256 currentLtv,
            uint256 currentLiquidationThreshold,
            uint256 healthFactor,
            bool healthFactorBelowThreshold
        );
}   /**
@title ILendingPoolAddressesProvider interface
@notice provides the interface to fetch the LendingPoolCore address
 */
abstract contract ILendingPoolAddressesProvider {

    function getLendingPool() public virtual view returns (address);
    function getLendingPoolCore() public virtual view returns (address payable);
    function getLendingPoolConfigurator() public virtual view returns (address);
    function getLendingPoolDataProvider() public virtual view returns (address);
    function getLendingPoolParametersProvider() public virtual view returns (address);
    function getTokenDistributor() public virtual view returns (address);
    function getFeeProvider() public virtual view returns (address);
    function getLendingPoolLiquidationManager() public virtual view returns (address);
    function getLendingPoolManager() public virtual view returns (address);
    function getPriceOracle() public virtual view returns (address);
    function getLendingRateOracle() public virtual view returns (address);
}   


   











contract AaveMigration {
    using SafeERC20 for ERC20;

    address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;

    uint16 public constant AAVE_REFERRAL_CODE = 64;

    address public constant AAVE_V1_LENDING_POOL_ADDRESSES =
        0x24a42fD28C976A61Df5D00D0599C34c4f90748c8;

    struct MigrateLoanData {
        address market;
        address[] collAssets;
        bool[] isColl;
        address[] borrowAssets;
        uint256[] borrowAmounts;
        uint256[] fees;
        uint256[] modes;
    }

    function migrateLoan(MigrateLoanData memory _loanData) public {
        address lendingPoolCoreV1 =
            ILendingPoolAddressesProvider(AAVE_V1_LENDING_POOL_ADDRESSES).getLendingPoolCore();

        address lendingPoolV2 = ILendingPoolAddressesProviderV2(_loanData.market).getLendingPool();

        // payback AaveV1 loans
        for (uint256 i = 0; i < _loanData.borrowAssets.length; ++i) {
            paybackAaveV1(lendingPoolCoreV1, _loanData.borrowAssets[i], _loanData.borrowAmounts[i]);
        }

        // withdraw from AaveV1 and deposit to V2
        for (uint256 i = 0; i < _loanData.collAssets.length; ++i) {
            address aTokenAddr =
                ILendingPool(lendingPoolCoreV1).getReserveATokenAddress(_loanData.collAssets[i]);

            uint256 withdrawnAmount = withdrawAaveV1(aTokenAddr);

            depositAaveV2(
                lendingPoolV2,
                _loanData.market,
                _loanData.collAssets[i],
                withdrawnAmount,
                _loanData.isColl[i]

            );
        }

        // borrow debt from AaveV2
        for (uint256 i = 0; i < _loanData.borrowAssets.length; ++i) {
            borrowAaveV2(
                lendingPoolV2,
                _loanData.borrowAssets[i],
                (_loanData.borrowAmounts[i] + _loanData.fees[i]),
                _loanData.modes[i]
            );
        }
    }

    function depositAaveV2(
        address _lendingPoolV2,
        address _market,
        address _tokenAddr,
        uint256 _amount,
        bool _isColl
    ) internal {
        // handle weth
        if (_tokenAddr == ETH_ADDR) {
            TokenInterface(WETH_ADDRESS).deposit{value: _amount}();
            _tokenAddr = WETH_ADDRESS;
        }

        ERC20(_tokenAddr).safeApprove(_lendingPoolV2, _amount);
        ILendingPoolV2(_lendingPoolV2).deposit(
            _tokenAddr,
            _amount,
            address(this),
            AAVE_REFERRAL_CODE
        );

        if (_isColl) {
            setUserUseReserveAsCollateralIfNeeded(_lendingPoolV2, _market, _tokenAddr);
        }
    }

    function borrowAaveV2(
        address _lendingPoolV2,
        address _tokenAddr,
        uint256 _amount,
        uint256 _type
    ) internal {
        _tokenAddr = _tokenAddr == ETH_ADDR ? WETH_ADDRESS : _tokenAddr;

        ILendingPoolV2(_lendingPoolV2).borrow(
            _tokenAddr,
            _amount,
            _type,
            AAVE_REFERRAL_CODE,
            address(this)
        );

        ERC20(_tokenAddr).safeTransfer(msg.sender, _amount);
    }

    function withdrawAaveV1(address _aTokenAddr)
        internal
        returns (uint256 amount)
    {
        amount = ERC20(_aTokenAddr).balanceOf(address(this));

        IAToken(_aTokenAddr).redeem(amount);
    }

    function paybackAaveV1(
        address _lendingPoolCore,
        address _tokenAddr,
        uint256 _amount
    ) internal {
        address lendingPool =
            ILendingPoolAddressesProvider(AAVE_V1_LENDING_POOL_ADDRESSES).getLendingPool();

        uint256 ethAmount = 0;

        if (_tokenAddr != WETH_ADDRESS) {
            ERC20(_tokenAddr).safeApprove(_lendingPoolCore, uint(-1));
        } else {
            ethAmount = _amount;
            TokenInterface(WETH_ADDRESS).withdraw(ethAmount);
        }

        ILendingPool(lendingPool).repay{value: ethAmount}(
            _tokenAddr,
            _amount,
            payable(address(this))
        );
    }

    function setUserUseReserveAsCollateralIfNeeded(
        address _lendingPoolV2,
        address _market,
        address _tokenAddr
    ) public {
        IAaveProtocolDataProviderV2 dataProvider = getDataProvider(_market);

        (, , , , , , , , bool collateralEnabled) =
            dataProvider.getUserReserveData(_tokenAddr, address(this));

        if (!collateralEnabled) {
            ILendingPoolV2(_lendingPoolV2).setUserUseReserveAsCollateral(_tokenAddr, true);
        }
    }

    function getDataProvider(address _market) internal view returns (IAaveProtocolDataProviderV2) {
        return
            IAaveProtocolDataProviderV2(
                ILendingPoolAddressesProviderV2(_market).getAddress(
                    0x0100000000000000000000000000000000000000000000000000000000000000
                )
            );
    }
}      



/// @title Stores subscription information for Aave automatization
contract AaveSubscriptions is AdminAuth {

    struct AaveHolder {
        address user;
        uint128 minRatio;
        uint128 maxRatio;
        uint128 optimalRatioBoost;
        uint128 optimalRatioRepay;
        bool boostEnabled;
    }

    struct SubPosition {
        uint arrPos;
        bool subscribed;
    }

    AaveHolder[] public subscribers;
    mapping (address => SubPosition) public subscribersPos;

    uint public changeIndex;

    event Subscribed(address indexed user);
    event Unsubscribed(address indexed user);
    event Updated(address indexed user);
    event ParamUpdates(address indexed user, uint128, uint128, uint128, uint128, bool);

    /// @dev Called by the DSProxy contract which owns the Aave position
    /// @notice Adds the users Aave poistion in the list of subscriptions so it can be monitored
    /// @param _minRatio Minimum ratio below which repay is triggered
    /// @param _maxRatio Maximum ratio after which boost is triggered
    /// @param _optimalBoost Ratio amount which boost should target
    /// @param _optimalRepay Ratio amount which repay should target
    /// @param _boostEnabled Boolean determing if boost is enabled
    function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) external {

        // if boost is not enabled, set max ratio to max uint
        uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);
        require(checkParams(_minRatio, localMaxRatio), "Must be correct params");

        SubPosition storage subInfo = subscribersPos[msg.sender];

        AaveHolder memory subscription = AaveHolder({
                minRatio: _minRatio,
                maxRatio: localMaxRatio,
                optimalRatioBoost: _optimalBoost,
                optimalRatioRepay: _optimalRepay,
                user: msg.sender,
                boostEnabled: _boostEnabled
            });

        changeIndex++;

        if (subInfo.subscribed) {
            subscribers[subInfo.arrPos] = subscription;

            emit Updated(msg.sender);
            emit ParamUpdates(msg.sender, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);
        } else {
            subscribers.push(subscription);

            subInfo.arrPos = subscribers.length - 1;
            subInfo.subscribed = true;

            emit Subscribed(msg.sender);
        }
    }

    /// @notice Called by the users DSProxy
    /// @dev Owner who subscribed cancels his subscription
    function unsubscribe() external {
        _unsubscribe(msg.sender);
    }

    /// @dev Checks limit if minRatio is bigger than max
    /// @param _minRatio Minimum ratio, bellow which repay can be triggered
    /// @param _maxRatio Maximum ratio, over which boost can be triggered
    /// @return Returns bool if the params are correct
    function checkParams(uint128 _minRatio, uint128 _maxRatio) internal pure returns (bool) {

        if (_minRatio > _maxRatio) {
            return false;
        }

        return true;
    }

    /// @dev Internal method to remove a subscriber from the list
    /// @param _user The actual address that owns the Aave position
    function _unsubscribe(address _user) internal {
        require(subscribers.length > 0, "Must have subscribers in the list");

        SubPosition storage subInfo = subscribersPos[_user];

        require(subInfo.subscribed, "Must first be subscribed");

        address lastOwner = subscribers[subscribers.length - 1].user;

        SubPosition storage subInfo2 = subscribersPos[lastOwner];
        subInfo2.arrPos = subInfo.arrPos;

        subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];
        subscribers.pop(); // remove last element and reduce arr length

        changeIndex++;
        subInfo.subscribed = false;
        subInfo.arrPos = 0;

        emit Unsubscribed(msg.sender);
    }

    /// @dev Checks if the user is subscribed
    /// @param _user The actual address that owns the Aave position
    /// @return If the user is subscribed
    function isSubscribed(address _user) public view returns (bool) {
        SubPosition storage subInfo = subscribersPos[_user];

        return subInfo.subscribed;
    }

    /// @dev Returns subscribtion information about a user
    /// @param _user The actual address that owns the Aave position
    /// @return Subscription information about the user if exists
    function getHolder(address _user) public view returns (AaveHolder memory) {
        SubPosition storage subInfo = subscribersPos[_user];

        return subscribers[subInfo.arrPos];
    }

    /// @notice Helper method to return all the subscribed CDPs
    /// @return List of all subscribers
    function getSubscribers() public view returns (AaveHolder[] memory) {
        return subscribers;
    }

    /// @notice Helper method for the frontend, returns all the subscribed CDPs paginated
    /// @param _page What page of subscribers you want
    /// @param _perPage Number of entries per page
    /// @return List of all subscribers for that page
    function getSubscribersByPage(uint _page, uint _perPage) public view returns (AaveHolder[] memory) {
        AaveHolder[] memory holders = new AaveHolder[](_perPage);

        uint start = _page * _perPage;
        uint end = start + _perPage;

        end = (end > holders.length) ? holders.length : end;

        uint count = 0;
        for (uint i = start; i < end; i++) {
            holders[count] = subscribers[i];
            count++;
        }

        return holders;
    }

    ////////////// ADMIN METHODS ///////////////////

    /// @notice Admin function to unsubscribe a position
    /// @param _user The actual address that owns the Aave position
    function unsubscribeByAdmin(address _user) public onlyOwner {
        SubPosition storage subInfo = subscribersPos[_user];

        if (subInfo.subscribed) {
            _unsubscribe(_user);
        }
    }
}      



/// @title Stores subscription information for Aave automatization
contract AaveSubscriptionsV2 is AdminAuth {

    string public constant NAME = "AaveSubscriptionsV2";

    struct AaveHolder {
        address user;
        uint128 minRatio;
        uint128 maxRatio;
        uint128 optimalRatioBoost;
        uint128 optimalRatioRepay;
        bool boostEnabled;
    }

    struct SubPosition {
        uint arrPos;
        bool subscribed;
    }

    AaveHolder[] public subscribers;
    mapping (address => SubPosition) public subscribersPos;

    uint public changeIndex;

    event Subscribed(address indexed user);
    event Unsubscribed(address indexed user);
    event Updated(address indexed user);
    event ParamUpdates(address indexed user, uint128, uint128, uint128, uint128, bool);

    /// @dev Called by the DSProxy contract which owns the Aave position
    /// @notice Adds the users Aave poistion in the list of subscriptions so it can be monitored
    /// @param _minRatio Minimum ratio below which repay is triggered
    /// @param _maxRatio Maximum ratio after which boost is triggered
    /// @param _optimalBoost Ratio amount which boost should target
    /// @param _optimalRepay Ratio amount which repay should target
    /// @param _boostEnabled Boolean determing if boost is enabled
    function subscribe(uint128 _minRatio, uint128 _maxRatio, uint128 _optimalBoost, uint128 _optimalRepay, bool _boostEnabled) external {

        // if boost is not enabled, set max ratio to max uint
        uint128 localMaxRatio = _boostEnabled ? _maxRatio : uint128(-1);
        require(checkParams(_minRatio, localMaxRatio), "Must be correct params");

        SubPosition storage subInfo = subscribersPos[msg.sender];

        AaveHolder memory subscription = AaveHolder({
                minRatio: _minRatio,
                maxRatio: localMaxRatio,
                optimalRatioBoost: _optimalBoost,
                optimalRatioRepay: _optimalRepay,
                user: msg.sender,
                boostEnabled: _boostEnabled
            });

        changeIndex++;

        if (subInfo.subscribed) {
            subscribers[subInfo.arrPos] = subscription;

            emit Updated(msg.sender);
            emit ParamUpdates(msg.sender, _minRatio, localMaxRatio, _optimalBoost, _optimalRepay, _boostEnabled);
        } else {
            subscribers.push(subscription);

            subInfo.arrPos = subscribers.length - 1;
            subInfo.subscribed = true;

            emit Subscribed(msg.sender);
        }
    }

    /// @notice Called by the users DSProxy
    /// @dev Owner who subscribed cancels his subscription
    function unsubscribe() external {
        _unsubscribe(msg.sender);
    }

    /// @dev Checks limit if minRatio is bigger than max
    /// @param _minRatio Minimum ratio, bellow which repay can be triggered
    /// @param _maxRatio Maximum ratio, over which boost can be triggered
    /// @return Returns bool if the params are correct
    function checkParams(uint128 _minRatio, uint128 _maxRatio) internal pure returns (bool) {

        if (_minRatio > _maxRatio) {
            return false;
        }

        return true;
    }

    /// @dev Internal method to remove a subscriber from the list
    /// @param _user The actual address that owns the Aave position
    function _unsubscribe(address _user) internal {
        require(subscribers.length > 0, "Must have subscribers in the list");

        SubPosition storage subInfo = subscribersPos[_user];

        require(subInfo.subscribed, "Must first be subscribed");

        address lastOwner = subscribers[subscribers.length - 1].user;

        SubPosition storage subInfo2 = subscribersPos[lastOwner];
        subInfo2.arrPos = subInfo.arrPos;

        subscribers[subInfo.arrPos] = subscribers[subscribers.length - 1];
        subscribers.pop(); // remove last element and reduce arr length

        changeIndex++;
        subInfo.subscribed = false;
        subInfo.arrPos = 0;

        emit Unsubscribed(msg.sender);
    }

    /// @dev Checks if the user is subscribed
    /// @param _user The actual address that owns the Aave position
    /// @return If the user is subscribed
    function isSubscribed(address _user) public view returns (bool) {
        SubPosition storage subInfo = subscribersPos[_user];

        return subInfo.subscribed;
    }

    /// @dev Returns subscribtion information about a user
    /// @param _user The actual address that owns the Aave position
    /// @return Subscription information about the user if exists
    function getHolder(address _user) public view returns (AaveHolder memory) {
        SubPosition storage subInfo = subscribersPos[_user];

        return subscribers[subInfo.arrPos];
    }

    /// @notice Helper method to return all the subscribed CDPs
    /// @return List of all subscribers
    function getSubscribers() public view returns (AaveHolder[] memory) {
        return subscribers;
    }

    /// @notice Helper method for the frontend, returns all the subscribed CDPs paginated
    /// @param _page What page of subscribers you want
    /// @param _perPage Number of entries per page
    /// @return List of all subscribers for that page
    function getSubscribersByPage(uint _page, uint _perPage) public view returns (AaveHolder[] memory) {
        AaveHolder[] memory holders = new AaveHolder[](_perPage);

        uint start = _page * _perPage;
        uint end = start + _perPage;

        end = (end > holders.length) ? holders.length : end;

        uint count = 0;
        for (uint i = start; i < end; i++) {
            holders[count] = subscribers[i];
            count++;
        }

        return holders;
    }

    ////////////// ADMIN METHODS ///////////////////

    /// @notice Admin function to unsubscribe a position
    /// @param _user The actual address that owns the Aave position
    function unsubscribeByAdmin(address _user) public onlyOwner {
        SubPosition storage subInfo = subscribersPos[_user];

        if (subInfo.subscribed) {
            _unsubscribe(_user);
        }
    }
}   abstract contract DSGuard {
    function canCall(address src_, address dst_, bytes4 sig) public view virtual returns (bool);

    function permit(bytes32 src, bytes32 dst, bytes32 sig) public virtual;

    function forbid(bytes32 src, bytes32 dst, bytes32 sig) public virtual;

    function permit(address src, address dst, bytes32 sig) public virtual;

    function forbid(address src, address dst, bytes32 sig) public virtual;
}


abstract contract DSGuardFactory {
    function newGuard() public virtual returns (DSGuard guard);
}   contract ProxyPermission {
    address public constant FACTORY_ADDRESS = 0x5a15566417e6C1c9546523066500bDDBc53F88C7;

    /// @notice Called in the context of DSProxy to authorize an address
    /// @param _contractAddr Address which will be authorized
    function givePermission(address _contractAddr) public {
        address currAuthority = address(DSAuth(address(this)).authority());
        DSGuard guard = DSGuard(currAuthority);

        if (currAuthority == address(0)) {
            guard = DSGuardFactory(FACTORY_ADDRESS).newGuard();
            DSAuth(address(this)).setAuthority(DSAuthority(address(guard)));
        }

        guard.permit(_contractAddr, address(this), bytes4(keccak256("execute(address,bytes)")));
    }

    /// @notice Called in the context of DSProxy to remove authority of an address
    /// @param _contractAddr Auth address which will be removed from authority list
    function removePermission(address _contractAddr) public {
        address currAuthority = address(DSAuth(address(this)).authority());
        
        // if there is no authority, that means that contract doesn't have permission
        if (currAuthority == address(0)) {
            return;
        }

        DSGuard guard = DSGuard(currAuthority);
        guard.forbid(_contractAddr, address(this), bytes4(keccak256("execute(address,bytes)")));
    }

    function proxyOwner() internal returns(address) {
        return DSAuth(address(this)).owner();
    } 
}   contract DefisaverLogger {
    event LogEvent(
        address indexed contractAddress,
        address indexed caller,
        string indexed logName,
        bytes data
    );

    // solhint-disable-next-line func-name-mixedcase
    function Log(address _contract, address _caller, string memory _logName, bytes memory _data)
        public
    {
        emit LogEvent(_contract, _caller, _logName, _data);
    }
}  


   










/// @title Entry point for an AAVE v1 -> v2 position migration
contract AaveMigrationTaker is ProxyPermission {
    uint16 public constant AAVE_REFERRAL_CODE = 64;

    address public constant AAVE_V1_LENDING_POOL_ADDRESSES =
        0x24a42fD28C976A61Df5D00D0599C34c4f90748c8;
    address public constant AAVE_V1_SUBSCRIPTION_ADDR = 0xe08ff7A2BADb634F0b581E675E6B3e583De086FC;
    address public constant AAVE_V2_SUBSCRIPTION_ADDR = 0x6B25043BF08182d8e86056C6548847aF607cd7CD;

    address public constant AAVE_V1_MONITOR_PROXY = 0xfA560Dba3a8D0B197cA9505A2B98120DD89209AC;
    address public constant AAVE_V2_MONITOR_PROXY = 0x380982902872836ceC629171DaeAF42EcC02226e;

    address public constant DEFISAVER_LOGGER = 0x5c55B921f590a89C1Ebe84dF170E655a82b62126;
    DefisaverLogger public logger = DefisaverLogger(DEFISAVER_LOGGER);

    address public constant ETH_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
    address public constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    struct FlMigrationData {
        address market;
        address[] collTokens;
        uint256[] modes;
        bool[] isColl;
    }

    /// @notice Call through DSProxy to migrate the position on the proxy
    /// @param _market Market address of Aave V2
    /// @param _collTokens Underlying supply addresses where user has non 0 balance
    /// @param _isColl Bool array indicating if the collTokens are set as collateral
    /// @param _borrowTokens Underlying borrow addresses where user has non 0 debt
    /// @param _flModes Type of aave V2 loan (array of 0 same size as borrowTokens)
    /// @param _aaveMigrationReceiverAddr Receiver address for aave fl
    function migrateV1Position(
        address _market,
        address[] memory _collTokens,
        bool[] memory _isColl,
        address[] memory _borrowTokens,
        uint256[] memory _flModes,
        address _aaveMigrationReceiverAddr
    ) public {
        address lendingPool = ILendingPoolAddressesProviderV2(_market).getLendingPool();
        address userProxy = address(this); // called by DSProxy, so it can be set like this

        (address[] memory assets, uint256[] memory amounts, uint256[] memory modes) =
            getUserBorrows(userProxy, _borrowTokens);

        FlMigrationData memory flData =
            FlMigrationData({
                market: _market,
                collTokens: _collTokens,
                modes: modes,
                isColl: _isColl
            });

        bytes memory data = abi.encode(flData);

        // give permission to receiver and execute tx
        givePermission(_aaveMigrationReceiverAddr);

        ILendingPoolV2(lendingPool).flashLoan(
            _aaveMigrationReceiverAddr,
            assets,
            amounts,
            _flModes,
            address(this),
            data,
            AAVE_REFERRAL_CODE
        );

        removePermission(_aaveMigrationReceiverAddr);

        unsubAutomationInNeeded(userProxy);

        logger.Log(
            address(this),
            msg.sender,
            "AaveMigration",
            abi.encode(_collTokens, _borrowTokens)
        );
    }

    function unsubAutomationInNeeded(address _userProxy) internal {
        AaveSubscriptions aaveSubV1 = AaveSubscriptions(AAVE_V1_SUBSCRIPTION_ADDR);
        AaveSubscriptionsV2 aaveSubV2 = AaveSubscriptionsV2(AAVE_V2_SUBSCRIPTION_ADDR);

        if (aaveSubV1.isSubscribed(_userProxy)) {
            AaveSubscriptions.AaveHolder memory holder = aaveSubV1.getHolder(_userProxy);

            // unsub and remove old permission
            aaveSubV1.unsubscribe();
            removePermission(AAVE_V1_MONITOR_PROXY);

            // sub and add permission
            givePermission(AAVE_V2_MONITOR_PROXY);
            aaveSubV2.subscribe(
                holder.minRatio,
                holder.maxRatio,
                holder.optimalRatioBoost,
                holder.optimalRatioRepay,
                holder.boostEnabled
            );
        }
    }

    function getUserBorrows(address _user, address[] memory _borrowTokens)
        public
        view
        returns (
            address[] memory borrowAddr,
            uint256[] memory borrowAmounts,
            uint256[] memory borrowRateModes
        )
    {
        address lendingPoolAddress =
            ILendingPoolAddressesProvider(AAVE_V1_LENDING_POOL_ADDRESSES).getLendingPool();

        borrowAddr = new address[](_borrowTokens.length);
        borrowAmounts = new uint256[](_borrowTokens.length);
        borrowRateModes = new uint256[](_borrowTokens.length);

        for (uint256 i = 0; i < _borrowTokens.length; i++) {
            address reserve = _borrowTokens[i];

            (, uint256 borrowBalance, , uint256 borrowRateMode, , , uint256 originationFee, , , ) =
                ILendingPool(lendingPoolAddress).getUserReserveData(reserve, _user);

            if (reserve == ETH_ADDR) {
                reserve = WETH_ADDRESS;
            }

            borrowAddr[i] = reserve;
            borrowAmounts[i] = borrowBalance + originationFee;
            borrowRateModes[i] = borrowRateMode;
        }
    }
}  


   







contract AaveMigrationReceiver is AdminAuth {
    using SafeERC20 for ERC20;

    address public AAVE_MIGRATION_ADDR = 0x34e5B3c9109c699D38B111912F068D9F141b5187;
    address public constant AAVE_V2_LENDING_POOL = 0x7d2768dE32b0b80b7a3454c06BdAc94A69DDc7A9;

    function executeOperation(
        address[] calldata borrowAssets,
        uint256[] calldata amounts,
        uint256[] calldata fees,
        address initiator,
        bytes calldata params
    ) public returns (bool) {

        // send loan tokens to proxy
        for (uint256 i = 0; i < borrowAssets.length; i++) {
            ERC20(borrowAssets[i]).safeTransfer(initiator, amounts[i]);
        }

        (AaveMigrationTaker.FlMigrationData memory flData) =
            abi.decode(params, (AaveMigrationTaker.FlMigrationData));

        AaveMigration.MigrateLoanData memory migrateLoanData =
            AaveMigration.MigrateLoanData({
                market: flData.market,
                collAssets: flData.collTokens,
                isColl: flData.isColl,
                borrowAssets: borrowAssets,
                borrowAmounts: amounts,
                fees: fees,
                modes: flData.modes
            });


        // call DsProxy
        DSProxy(payable(initiator)).execute{value: address(this).balance}(
            AAVE_MIGRATION_ADDR,
            abi.encodeWithSignature(
                "migrateLoan((address,address[],bool[],address[],uint256[],uint256[],uint256[]))",
                migrateLoanData
            )
        );

        // returnFL(borrowAssets, amounts, fees);

        return true;
    }

    // function returnFL(
    //     address[] memory _borrowAssets,
    //     uint256[] memory _amounts,
    //     uint256[] memory _fees
    // ) internal {
    //     for (uint256 i = 0; i < _borrowAssets.length; i++) {
    //         ERC20(_borrowAssets[i]).safeApprove(AAVE_V2_LENDING_POOL, (_amounts[i] + _fees[i]));
    //     }
    // }

    function setAaveMigrationAddr(address _aaveMigrationAddr) public onlyOwner {
        AAVE_MIGRATION_ADDR = _aaveMigrationAddr;
    }

    /// @dev Allow contract to receive eth
    receive() external payable {}
}

Contract Security Audit

No Contract Security Audit Submitted- Submit Audit Here

Contract ABI

[{"inputs":[],"name":"AAVE_MIGRATION_ADDR","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"AAVE_V2_LENDING_POOL","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address[]","name":"borrowAssets","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"},{"internalType":"uint256[]","name":"fees","type":"uint256[]"},{"internalType":"address","name":"initiator","type":"address"},{"internalType":"bytes","name":"params","type":"bytes"}],"name":"executeOperation","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"kill","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_aaveMigrationAddr","type":"address"}],"name":"setAaveMigrationAddr","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_admin","type":"address"}],"name":"setAdminByAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_admin","type":"address"}],"name":"setAdminByOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"setOwnerByAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawStuckFunds","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

Contract Creation Code

Decompile Bytecode Switch to Opcodes View

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Swarm Source

ipfs://0afe145096568db96cad270aaa3a369e4aed2389caa7884c3f1cc33dca4cff07

Block		Transaction	Difficulty	Gas Used	Reward

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Block		Uncle Number	Difficulty	Gas Used	Reward

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Validator Index	Block		Amount

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Transaction Hash	Block		Value	Eth2 PubKey	Valid

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Multichain Portfolio | 31 Chains

Display all chains •

Last updated: less than 1 sec ago

Chain	Token	Portfolio %	Price	Amount	Value

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.

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