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Minimal Proxy Contract for 0x71be8726c96873f04d2690aa05b2acca7c7104d0
Contract Name:
GenericAave
Compiler Version
v0.6.12+commit.27d51765
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2021-04-26 */ // SPDX-License-Identifier: GPL-3.0 pragma solidity 0.6.12; pragma experimental ABIEncoderV2; // Global Enums and Structs 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} } struct StrategyParams { uint256 performanceFee; uint256 activation; uint256 debtRatio; uint256 minDebtPerHarvest; uint256 maxDebtPerHarvest; uint256 lastReport; uint256 totalDebt; uint256 totalGain; uint256 totalLoss; } // Part: IAaveIncentivesController interface IAaveIncentivesController { /** * @dev Returns the total of rewards of an user, already accrued + not yet accrued * @param user The address of the user * @return The rewards **/ function getRewardsBalance(address[] calldata assets, address user) external view returns (uint256); /** * @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards * @param amount Amount of rewards to claim * @param to Address that will be receiving the rewards * @return Rewards claimed **/ function claimRewards( address[] calldata assets, uint256 amount, address to ) external returns (uint256); /** * @dev Claims reward for an user on behalf, on all the assets of the lending pool, accumulating the pending rewards. The caller must * be whitelisted via "allowClaimOnBehalf" function by the RewardsAdmin role manager * @param amount Amount of rewards to claim * @param user Address to check and claim rewards * @param to Address that will be receiving the rewards * @return Rewards claimed **/ function claimRewardsOnBehalf( address[] calldata assets, uint256 amount, address user, address to ) external returns (uint256); /** * @dev returns the unclaimed rewards of the user * @param user the address of the user * @return the unclaimed user rewards */ function getUserUnclaimedRewards(address user) external view returns (uint256); /** * @dev for backward compatibility with previous implementation of the Incentives controller */ function REWARD_TOKEN() external view returns (address); function getDistributionEnd() external view returns (uint256); function getAssetData(address asset) external view returns (uint256, uint256, uint256); } // Part: IBaseStrategy interface IBaseStrategy { function apiVersion() external pure returns (string memory); function name() external pure returns (string memory); function vault() external view returns (address); function keeper() external view returns (address); function tendTrigger(uint256 callCost) external view returns (bool); function tend() external; function harvestTrigger(uint256 callCost) external view returns (bool); function harvest() external; function strategist() external view returns (address); } // Part: IGenericLender interface IGenericLender { function lenderName() external view returns (string memory); function nav() external view returns (uint256); function strategy() external view returns (address); function apr() external view returns (uint256); function weightedApr() external view returns (uint256); function withdraw(uint256 amount) external returns (uint256); function emergencyWithdraw(uint256 amount) external; function deposit() external; function withdrawAll() external returns (bool); function hasAssets() external view returns (bool); function aprAfterDeposit(uint256 amount) external view returns (uint256); function setDust(uint256 _dust) external; function sweep(address _token) external; } // Part: ILendingPoolAddressesProvider /** * @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 ILendingPoolAddressesProvider { event MarketIdSet(string newMarketId); 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 getMarketId() external view returns (string memory); function setMarketId(string calldata marketId) external; 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; } // Part: IReserveInterestRateStrategy /** * @title IReserveInterestRateStrategyInterface interface * @dev Interface for the calculation of the interest rates * @author Aave */ interface IReserveInterestRateStrategy { function baseVariableBorrowRate() external view returns (uint256); function getMaxVariableBorrowRate() external view returns (uint256); function calculateInterestRates( address reserve, uint256 utilizationRate, uint256 totalStableDebt, uint256 totalVariableDebt, uint256 averageStableBorrowRate, uint256 reserveFactor ) external view returns ( uint256 liquidityRate, uint256 stableBorrowRate, uint256 variableBorrowRate ); } // Part: IScaledBalanceToken interface IScaledBalanceToken { /** * @dev Returns the scaled balance of the user. The scaled balance is the sum of all the * updated stored balance divided by the reserve's liquidity index at the moment of the update * @param user The user whose balance is calculated * @return The scaled balance of the user **/ function scaledBalanceOf(address user) external view returns (uint256); /** * @dev Returns the scaled balance of the user and the scaled total supply. * @param user The address of the user * @return The scaled balance of the user * @return The scaled balance and the scaled total supply **/ function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256); /** * @dev Returns the scaled total supply of the variable debt token. Represents sum(debt/index) * @return The scaled total supply **/ function scaledTotalSupply() external view returns (uint256); } // Part: IStakedAave interface IStakedAave { function stake(address to, uint256 amount) external; function redeem(address to, uint256 amount) external; function cooldown() external; function claimRewards(address to, uint256 amount) external; function getTotalRewardsBalance(address) external view returns (uint256); function COOLDOWN_SECONDS() external view returns (uint256); function stakersCooldowns(address) external view returns (uint256); function UNSTAKE_WINDOW() external view returns (uint256); } // Part: IUniswapV2Router01 interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); 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 removeLiquidityWithPermit( address tokenA, address tokenB, uint256 liquidity, uint256 amountAMin, uint256 amountBMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint256 amountA, uint256 amountB); function removeLiquidityETHWithPermit( address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) 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 swapTokensForExactTokens( uint256 amountOut, uint256 amountInMax, 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 swapTokensForExactETH( uint256 amountOut, uint256 amountInMax, address[] calldata path, address to, uint256 deadline ) external returns (uint256[] memory amounts); function swapExactTokensForETH( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external returns (uint256[] memory amounts); function swapETHForExactTokens( uint256 amountOut, address[] calldata path, address to, uint256 deadline ) external payable returns (uint256[] memory amounts); function quote( uint256 amountA, uint256 reserveA, uint256 reserveB ) external pure returns (uint256 amountB); function getAmountOut( uint256 amountIn, uint256 reserveIn, uint256 reserveOut ) external pure returns (uint256 amountOut); function getAmountIn( uint256 amountOut, uint256 reserveIn, uint256 reserveOut ) external pure returns (uint256 amountIn); function getAmountsOut(uint256 amountIn, address[] calldata path) external view returns (uint256[] memory amounts); function getAmountsIn(uint256 amountOut, address[] calldata path) external view returns (uint256[] memory amounts); } // Part: OpenZeppelin/[email protected]/Address /** * @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) { // 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); } /** * @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); } } } } // Part: OpenZeppelin/[email protected]/IERC20 /** * @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); } // Part: OpenZeppelin/[email protected]/SafeMath /** * @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; } } // Part: ILendingPool interface ILendingPool { /** * @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 * @return The final amount withdrawn **/ function withdraw( address asset, uint256 amount, address to ) external returns (uint256); /** * @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 * @return The final amount repaid **/ function repay( address asset, uint256 amount, uint256 rateMode, address onBehalfOf ) external returns (uint256); /** * @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 (ILendingPoolAddressesProvider); function setPause(bool val) external; function paused() external view returns (bool); } // Part: IProtocolDataProvider interface IProtocolDataProvider { struct TokenData { string symbol; address tokenAddress; } function ADDRESSES_PROVIDER() external view returns (ILendingPoolAddressesProvider); function getAllReservesTokens() external view returns (TokenData[] memory); function getAllATokens() external view returns (TokenData[] memory); function getReserveConfigurationData(address asset) external 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 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 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 view returns ( address aTokenAddress, address stableDebtTokenAddress, address variableDebtTokenAddress ); } // Part: IUniswapV2Router02 interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline ) external returns (uint256 amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint256 amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external; } // Part: OpenZeppelin/[email protected]/SafeERC20 /** * @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"); } } } // Part: iearn-finance/[email protected]/VaultAPI interface VaultAPI is IERC20 { function name() external view returns (string calldata); function symbol() external view returns (string calldata); function decimals() external view returns (uint256); function apiVersion() external pure returns (string memory); function permit( address owner, address spender, uint256 amount, uint256 expiry, bytes calldata signature ) external returns (bool); // NOTE: Vyper produces multiple signatures for a given function with "default" args function deposit() external returns (uint256); function deposit(uint256 amount) external returns (uint256); function deposit(uint256 amount, address recipient) external returns (uint256); // NOTE: Vyper produces multiple signatures for a given function with "default" args function withdraw() external returns (uint256); function withdraw(uint256 maxShares) external returns (uint256); function withdraw(uint256 maxShares, address recipient) external returns (uint256); function token() external view returns (address); function strategies(address _strategy) external view returns (StrategyParams memory); function pricePerShare() external view returns (uint256); function totalAssets() external view returns (uint256); function depositLimit() external view returns (uint256); function maxAvailableShares() external view returns (uint256); /** * View how much the Vault would increase this Strategy's borrow limit, * based on its present performance (since its last report). Can be used to * determine expectedReturn in your Strategy. */ function creditAvailable() external view returns (uint256); /** * View how much the Vault would like to pull back from the Strategy, * based on its present performance (since its last report). Can be used to * determine expectedReturn in your Strategy. */ function debtOutstanding() external view returns (uint256); /** * View how much the Vault expect this Strategy to return at the current * block, based on its present performance (since its last report). Can be * used to determine expectedReturn in your Strategy. */ function expectedReturn() external view returns (uint256); /** * This is the main contact point where the Strategy interacts with the * Vault. It is critical that this call is handled as intended by the * Strategy. Therefore, this function will be called by BaseStrategy to * make sure the integration is correct. */ function report( uint256 _gain, uint256 _loss, uint256 _debtPayment ) external returns (uint256); /** * This function should only be used in the scenario where the Strategy is * being retired but no migration of the positions are possible, or in the * extreme scenario that the Strategy needs to be put into "Emergency Exit" * mode in order for it to exit as quickly as possible. The latter scenario * could be for any reason that is considered "critical" that the Strategy * exits its position as fast as possible, such as a sudden change in * market conditions leading to losses, or an imminent failure in an * external dependency. */ function revokeStrategy() external; /** * View the governance address of the Vault to assert privileged functions * can only be called by governance. The Strategy serves the Vault, so it * is subject to governance defined by the Vault. */ function governance() external view returns (address); /** * View the management address of the Vault to assert privileged functions * can only be called by management. The Strategy serves the Vault, so it * is subject to management defined by the Vault. */ function management() external view returns (address); /** * View the guardian address of the Vault to assert privileged functions * can only be called by guardian. The Strategy serves the Vault, so it * is subject to guardian defined by the Vault. */ function guardian() external view returns (address); } // Part: GenericLenderBase abstract contract GenericLenderBase is IGenericLender { using SafeERC20 for IERC20; VaultAPI public vault; address public override strategy; IERC20 public want; string public override lenderName; uint256 public dust; event Cloned(address indexed clone); constructor(address _strategy, string memory _name) public { _initialize(_strategy, _name); } function _initialize(address _strategy, string memory _name) internal { require(address(strategy) == address(0), "Lender already initialized"); strategy = _strategy; vault = VaultAPI(IBaseStrategy(strategy).vault()); want = IERC20(vault.token()); lenderName = _name; dust = 10000; want.safeApprove(_strategy, uint256(-1)); } function initialize(address _strategy, string memory _name) external virtual { _initialize(_strategy, _name); } function _clone(address _strategy, string memory _name) internal returns (address newLender) { // Copied from https://github.com/optionality/clone-factory/blob/master/contracts/CloneFactory.sol bytes20 addressBytes = bytes20(address(this)); assembly { // EIP-1167 bytecode let clone_code := mload(0x40) mstore(clone_code, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(clone_code, 0x14), addressBytes) mstore(add(clone_code, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) newLender := create(0, clone_code, 0x37) } GenericLenderBase(newLender).initialize(_strategy, _name); emit Cloned(newLender); } function setDust(uint256 _dust) external virtual override management { dust = _dust; } function sweep(address _token) external virtual override management { address[] memory _protectedTokens = protectedTokens(); for (uint256 i; i < _protectedTokens.length; i++) require(_token != _protectedTokens[i], "!protected"); IERC20(_token).safeTransfer(vault.governance(), IERC20(_token).balanceOf(address(this))); } function protectedTokens() internal view virtual returns (address[] memory); //make sure to use modifier management() { require( msg.sender == address(strategy) || msg.sender == vault.governance() || msg.sender == IBaseStrategy(strategy).strategist(), "!management" ); _; } } // Part: IInitializableAToken /** * @title IInitializableAToken * @notice Interface for the initialize function on AToken * @author Aave **/ interface IInitializableAToken { /** * @dev Emitted when an aToken is initialized * @param underlyingAsset The address of the underlying asset * @param pool The address of the associated lending pool * @param treasury The address of the treasury * @param incentivesController The address of the incentives controller for this aToken * @param aTokenDecimals the decimals of the underlying * @param aTokenName the name of the aToken * @param aTokenSymbol the symbol of the aToken * @param params A set of encoded parameters for additional initialization **/ event Initialized( address indexed underlyingAsset, address indexed pool, address treasury, address incentivesController, uint8 aTokenDecimals, string aTokenName, string aTokenSymbol, bytes params ); /** * @dev Initializes the aToken * @param pool The address of the lending pool where this aToken will be used * @param treasury The address of the Aave treasury, receiving the fees on this aToken * @param underlyingAsset The address of the underlying asset of this aToken (E.g. WETH for aWETH) * @param incentivesController The smart contract managing potential incentives distribution * @param aTokenDecimals The decimals of the aToken, same as the underlying asset's * @param aTokenName The name of the aToken * @param aTokenSymbol The symbol of the aToken */ function initialize( ILendingPool pool, address treasury, address underlyingAsset, IAaveIncentivesController incentivesController, uint8 aTokenDecimals, string calldata aTokenName, string calldata aTokenSymbol, bytes calldata params ) external; } // Part: IAToken interface IAToken is IERC20, IScaledBalanceToken, IInitializableAToken { /** * @dev Emitted after the mint action * @param from The address performing the mint * @param value The amount being * @param index The new liquidity index of the reserve **/ event Mint(address indexed from, uint256 value, uint256 index); /** * @dev Mints `amount` aTokens to `user` * @param user The address receiving the minted tokens * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve * @return `true` if the the previous balance of the user was 0 */ function mint( address user, uint256 amount, uint256 index ) external returns (bool); /** * @dev Emitted after aTokens are burned * @param from The owner of the aTokens, getting them burned * @param target The address that will receive the underlying * @param value The amount being burned * @param index The new liquidity index of the reserve **/ event Burn(address indexed from, address indexed target, uint256 value, uint256 index); /** * @dev Emitted during the transfer action * @param from The user whose tokens are being transferred * @param to The recipient * @param value The amount being transferred * @param index The new liquidity index of the reserve **/ event BalanceTransfer(address indexed from, address indexed to, uint256 value, uint256 index); /** * @dev Burns aTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying` * @param user The owner of the aTokens, getting them burned * @param receiverOfUnderlying The address that will receive the underlying * @param amount The amount being burned * @param index The new liquidity index of the reserve **/ function burn( address user, address receiverOfUnderlying, uint256 amount, uint256 index ) external; /** * @dev Mints aTokens to the reserve treasury * @param amount The amount of tokens getting minted * @param index The new liquidity index of the reserve */ function mintToTreasury(uint256 amount, uint256 index) external; /** * @dev Transfers aTokens in the event of a borrow being liquidated, in case the liquidators reclaims the aToken * @param from The address getting liquidated, current owner of the aTokens * @param to The recipient * @param value The amount of tokens getting transferred **/ function transferOnLiquidation( address from, address to, uint256 value ) external; /** * @dev Transfers the underlying asset to `target`. Used by the LendingPool to transfer * assets in borrow(), withdraw() and flashLoan() * @param user The recipient of the underlying * @param amount The amount getting transferred * @return The amount transferred **/ function transferUnderlyingTo(address user, uint256 amount) external returns (uint256); /** * @dev Invoked to execute actions on the aToken side after a repayment. * @param user The user executing the repayment * @param amount The amount getting repaid **/ function handleRepayment(address user, uint256 amount) external; /** * @dev Returns the address of the incentives controller contract **/ function getIncentivesController() external view returns (IAaveIncentivesController); /** * @dev Returns the address of the underlying asset of this aToken (E.g. WETH for aWETH) **/ function UNDERLYING_ASSET_ADDRESS() external view returns (address); } // File: GenericAave.sol /******************** * A lender plugin for LenderYieldOptimiser for any erc20 asset on Aave * Made by SamPriestley.com & jmonteer * https://github.com/Grandthrax/yearnv2/blob/master/contracts/GenericLender/GenericAave.sol * ********************* */ contract GenericAave is GenericLenderBase { using SafeERC20 for IERC20; using Address for address; using SafeMath for uint256; IProtocolDataProvider public constant protocolDataProvider = IProtocolDataProvider(address(0x057835Ad21a177dbdd3090bB1CAE03EaCF78Fc6d)); IAToken public aToken; IStakedAave public constant stkAave = IStakedAave(0x4da27a545c0c5B758a6BA100e3a049001de870f5); address public keep3r; bool public isIncentivised; uint16 internal constant DEFAULT_REFERRAL = 179; // jmonteer's referral code uint16 internal customReferral; address public constant WETH = address(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2); address public constant AAVE = address(0x7Fc66500c84A76Ad7e9c93437bFc5Ac33E2DDaE9); IUniswapV2Router02 public constant router = IUniswapV2Router02(address(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D)); uint256 constant internal SECONDS_IN_YEAR = 365 days; constructor( address _strategy, string memory name, IAToken _aToken, bool _isIncentivised ) public GenericLenderBase(_strategy, name) { _initialize(_aToken, _isIncentivised); } function initialize(IAToken _aToken, bool _isIncentivised) external { _initialize(_aToken, _isIncentivised); } function cloneAaveLender( address _strategy, string memory _name, IAToken _aToken, bool _isIncentivised ) external returns (address newLender) { newLender = _clone(_strategy, _name); GenericAave(newLender).initialize(_aToken, _isIncentivised); } // for the management to activate / deactivate incentives functionality function setIsIncentivised(bool _isIncentivised) external management { // NOTE: if the aToken is not incentivised, getIncentivesController() might revert (aToken won't implement it) // to avoid calling it, we use the OR and lazy evaluation require(!_isIncentivised || address(aToken.getIncentivesController()) != address(0), "!aToken does not have incentives controller set up"); isIncentivised = _isIncentivised; } function setReferralCode(uint16 _customReferral) external management { require(_customReferral != 0, "!invalid referral code"); customReferral = _customReferral; } function setKeep3r(address _keep3r) external management { keep3r = _keep3r; } function withdraw(uint256 amount) external override management returns (uint256) { return _withdraw(amount); } //emergency withdraw. sends balance plus amount to governance function emergencyWithdraw(uint256 amount) external override management { _lendingPool().withdraw(address(want), amount, address(this)); want.safeTransfer(vault.governance(), want.balanceOf(address(this))); } function deposit() external override management { uint256 balance = want.balanceOf(address(this)); _deposit(balance); } function withdrawAll() external override management returns (bool) { uint256 invested = _nav(); uint256 returned = _withdraw(invested); return returned >= invested; } function startCooldown() external management { // for emergency cases IStakedAave(stkAave).cooldown(); // it will revert if balance of stkAave == 0 } function nav() external view override returns (uint256) { return _nav(); } function underlyingBalanceStored() public view returns (uint256 balance) { balance = aToken.balanceOf(address(this)); } function apr() external view override returns (uint256) { return _apr(); } function weightedApr() external view override returns (uint256) { uint256 a = _apr(); return a.mul(_nav()); } // calculates APR from Liquidity Mining Program function _incentivesRate(uint256 totalLiquidity) public view returns (uint256) { // only returns != 0 if the incentives are in place at the moment. // it will fail if the isIncentivised is set to true but there is no incentives if(isIncentivised && block.timestamp < _incentivesController().getDistributionEnd()) { uint256 _emissionsPerSecond; (, _emissionsPerSecond, ) = _incentivesController().getAssetData(address(aToken)); if(_emissionsPerSecond > 0) { uint256 emissionsInWant = _AAVEtoWant(_emissionsPerSecond); // amount of emissions in want uint256 incentivesRate = emissionsInWant.mul(SECONDS_IN_YEAR).mul(1e18).div(totalLiquidity); // APRs are in 1e18 return incentivesRate.mul(9_500).div(10_000); // 95% of estimated APR to avoid overestimations } } return 0; } function aprAfterDeposit(uint256 extraAmount) external view override returns (uint256) { // i need to calculate new supplyRate after Deposit (when deposit has not been done yet) DataTypes.ReserveData memory reserveData = _lendingPool().getReserveData(address(want)); (uint256 availableLiquidity, uint256 totalStableDebt, uint256 totalVariableDebt, , , , uint256 averageStableBorrowRate, , , ) = protocolDataProvider.getReserveData(address(want)); uint256 newLiquidity = availableLiquidity.add(extraAmount); (, , , , uint256 reserveFactor, , , , , ) = protocolDataProvider.getReserveConfigurationData(address(want)); (uint256 newLiquidityRate, , ) = IReserveInterestRateStrategy(reserveData.interestRateStrategyAddress).calculateInterestRates( address(want), newLiquidity, totalStableDebt, totalVariableDebt, averageStableBorrowRate, reserveFactor ); uint256 incentivesRate = _incentivesRate(newLiquidity.add(totalStableDebt).add(totalVariableDebt)); // total supplied liquidity in Aave v2 return newLiquidityRate.div(1e9).add(incentivesRate); // divided by 1e9 to go from Ray to Wad } function hasAssets() external view override returns (bool) { return aToken.balanceOf(address(this)) > 0; } // Only for incentivised aTokens // this is a manual trigger to claim rewards once each 10 days // only callable if the token is incentivised by Aave Governance (_checkCooldown returns true) function harvest() external keepers{ require(_checkCooldown(), "!conditions are not met"); // redeem AAVE from stkAave uint256 stkAaveBalance = IERC20(address(stkAave)).balanceOf(address(this)); if(stkAaveBalance > 0) { stkAave.redeem(address(this), stkAaveBalance); } // sell AAVE for want uint256 aaveBalance = IERC20(AAVE).balanceOf(address(this)); _sellAAVEForWant(aaveBalance); // deposit want in lending protocol uint256 balance = want.balanceOf(address(this)); if(balance > 0) { _deposit(balance); } // claim rewards address[] memory assets = new address[](1); assets[0] = address(aToken); uint256 pendingRewards = _incentivesController().getRewardsBalance(assets, address(this)); if(pendingRewards > 0) { _incentivesController().claimRewards(assets, pendingRewards, address(this)); } // request start of cooldown period if(IERC20(address(stkAave)).balanceOf(address(this)) > 0) { stkAave.cooldown(); } } function harvestTrigger(uint256 callcost) external view returns (bool) { return _checkCooldown(); } function _initialize(IAToken _aToken, bool _isIncentivised) internal { require(address(aToken) == address(0), "GenericAave already initialized"); require(!_isIncentivised || address(_aToken.getIncentivesController()) != address(0), "!aToken does not have incentives controller set up"); isIncentivised = _isIncentivised; aToken = _aToken; require(_lendingPool().getReserveData(address(want)).aTokenAddress == address(_aToken), "WRONG ATOKEN"); IERC20(address(want)).safeApprove(address(_lendingPool()), type(uint256).max); } function _nav() internal view returns (uint256) { return want.balanceOf(address(this)).add(underlyingBalanceStored()); } function _apr() internal view returns (uint256) { uint256 liquidityRate = uint256(_lendingPool().getReserveData(address(want)).currentLiquidityRate).div(1e9);// dividing by 1e9 to pass from ray to wad (uint256 availableLiquidity, uint256 totalStableDebt, uint256 totalVariableDebt, , , , , , , ) = protocolDataProvider.getReserveData(address(want)); uint256 incentivesRate = _incentivesRate(availableLiquidity.add(totalStableDebt).add(totalVariableDebt)); // total supplied liquidity in Aave v2 return liquidityRate.add(incentivesRate); } //withdraw an amount including any want balance function _withdraw(uint256 amount) internal returns (uint256) { uint256 balanceUnderlying = aToken.balanceOf(address(this)); uint256 looseBalance = want.balanceOf(address(this)); uint256 total = balanceUnderlying.add(looseBalance); if (amount > total) { //cant withdraw more than we own amount = total; } if (looseBalance >= amount) { want.safeTransfer(address(strategy), amount); return amount; } //not state changing but OK because of previous call uint256 liquidity = want.balanceOf(address(aToken)); if (liquidity > 1) { uint256 toWithdraw = amount.sub(looseBalance); if (toWithdraw <= liquidity) { //we can take all _lendingPool().withdraw(address(want), toWithdraw, address(this)); } else { //take all we can _lendingPool().withdraw(address(want), liquidity, address(this)); } } looseBalance = want.balanceOf(address(this)); want.safeTransfer(address(strategy), looseBalance); return looseBalance; } function _deposit(uint256 amount) internal { ILendingPool lp = _lendingPool(); // NOTE: check if allowance is enough and acts accordingly // allowance might not be enough if // i) initial allowance has been used (should take years) // ii) lendingPool contract address has changed (Aave updated the contract address) if(want.allowance(address(this), address(lp)) < amount){ IERC20(address(want)).safeApprove(address(lp), 0); IERC20(address(want)).safeApprove(address(lp), type(uint256).max); } uint16 referral; uint16 _customReferral = customReferral; if(_customReferral != 0) { referral = _customReferral; } else { referral = DEFAULT_REFERRAL; } lp.deposit(address(want), amount, address(this), referral); } function _lendingPool() internal view returns (ILendingPool lendingPool) { lendingPool = ILendingPool(protocolDataProvider.ADDRESSES_PROVIDER().getLendingPool()); } function _checkCooldown() internal view returns (bool) { if(!isIncentivised) { return false; } uint256 cooldownStartTimestamp = IStakedAave(stkAave).stakersCooldowns(address(this)); uint256 COOLDOWN_SECONDS = IStakedAave(stkAave).COOLDOWN_SECONDS(); uint256 UNSTAKE_WINDOW = IStakedAave(stkAave).UNSTAKE_WINDOW(); if(block.timestamp >= cooldownStartTimestamp.add(COOLDOWN_SECONDS)) { return block.timestamp.sub(cooldownStartTimestamp.add(COOLDOWN_SECONDS)) <= UNSTAKE_WINDOW || cooldownStartTimestamp == 0; } else { return false; } } function _AAVEtoWant(uint256 _amount) internal view returns (uint256) { if(_amount == 0) { return 0; } address[] memory path; if(address(want) == address(WETH)) { path = new address[](2); path[0] = address(AAVE); path[1] = address(want); } else { path = new address[](3); path[0] = address(AAVE); path[1] = address(WETH); path[2] = address(want); } uint256[] memory amounts = router.getAmountsOut(_amount, path); return amounts[amounts.length - 1]; } function _sellAAVEForWant(uint256 _amount) internal { if (_amount == 0) { return; } address[] memory path; if(address(want) == address(WETH)) { path = new address[](2); path[0] = address(AAVE); path[1] = address(want); } else { path = new address[](3); path[0] = address(AAVE); path[1] = address(WETH); path[2] = address(want); } if(IERC20(AAVE).allowance(address(this), address(router)) < _amount) { IERC20(AAVE).safeApprove(address(router), 0); IERC20(AAVE).safeApprove(address(router), type(uint256).max); } router.swapExactTokensForTokens( _amount, 0, path, address(this), now ); } function _incentivesController() internal view returns (IAaveIncentivesController) { if(isIncentivised) { return aToken.getIncentivesController(); } else { return IAaveIncentivesController(0); } } function protectedTokens() internal view override returns (address[] memory) { address[] memory protected = new address[](2); protected[0] = address(want); protected[1] = address(aToken); return protected; } modifier keepers() { require( msg.sender == address(keep3r) || msg.sender == address(strategy) || msg.sender == vault.governance() || msg.sender == IBaseStrategy(strategy).strategist(), "!keepers" ); _; } }
[{"inputs":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"string","name":"name","type":"string"},{"internalType":"contract IAToken","name":"_aToken","type":"address"},{"internalType":"bool","name":"_isIncentivised","type":"bool"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"clone","type":"address"}],"name":"Cloned","type":"event"},{"inputs":[],"name":"AAVE","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WETH","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"totalLiquidity","type":"uint256"}],"name":"_incentivesRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"aToken","outputs":[{"internalType":"contract IAToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"apr","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"extraAmount","type":"uint256"}],"name":"aprAfterDeposit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"string","name":"_name","type":"string"},{"internalType":"contract IAToken","name":"_aToken","type":"address"},{"internalType":"bool","name":"_isIncentivised","type":"bool"}],"name":"cloneAaveLender","outputs":[{"internalType":"address","name":"newLender","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"dust","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"emergencyWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"harvest","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"callcost","type":"uint256"}],"name":"harvestTrigger","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"hasAssets","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IAToken","name":"_aToken","type":"address"},{"internalType":"bool","name":"_isIncentivised","type":"bool"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_strategy","type":"address"},{"internalType":"string","name":"_name","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isIncentivised","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"keep3r","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lenderName","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nav","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolDataProvider","outputs":[{"internalType":"contract IProtocolDataProvider","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_dust","type":"uint256"}],"name":"setDust","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_isIncentivised","type":"bool"}],"name":"setIsIncentivised","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_keep3r","type":"address"}],"name":"setKeep3r","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_customReferral","type":"uint16"}],"name":"setReferralCode","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startCooldown","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stkAave","outputs":[{"internalType":"contract IStakedAave","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"strategy","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"sweep","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"underlyingBalanceStored","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract VaultAPI","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"want","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"weightedApr","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
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Multichain Portfolio | 30 Chains
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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.