Overview
APE Balance
APE Value
$0.00More Info
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Contract Name:
FlashLoan
Compiler Version
v0.8.10+commit.fc410830
Optimization Enabled:
Yes with 200 runs
Other Settings:
london EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "openzeppelin-contracts/contracts/access/Ownable.sol"; import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol"; import "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol"; import "./interfaces/IERC3156FlashLender.sol"; import "../interfaces/IDeferLiquidityCheck.sol"; import "../interfaces/IApeFinance.sol"; import "../libraries/PauseFlags.sol"; contract FlashLoan is Ownable, IERC3156FlashLender, IDeferLiquidityCheck { using SafeERC20 for IERC20; using PauseFlags for DataTypes.MarketConfig; /// @notice The standard signature for ERC-3156 borrower bytes32 public constant CALLBACK_SUCCESS = keccak256("ERC3156FlashBorrower.onFlashLoan"); /// @notice The maximum flash loan fee rate uint16 internal constant MAX_FEE_RATE = 1000; // 10% /// @notice The ApeFinance contract address public immutable apeFinance; /// @notice The flash loan fee rate uint16 public feeRate; /// @dev The deferred liquidity check flag bool internal _isDeferredLiquidityCheck; event FeeRateSet(uint16 feeRate); event TokenSeized(address token, uint256 amount); constructor(address apeFinance_) { apeFinance = apeFinance_; } /// @inheritdoc IERC3156FlashLender function maxFlashLoan(address token) external view override returns (uint256) { if (!IApeFinance(apeFinance).isMarketListed(token)) { return 0; } DataTypes.MarketConfig memory config = IApeFinance(apeFinance).getMarketConfiguration(token); if (config.isBorrowPaused()) { return 0; } uint256 totalCash = IApeFinance(apeFinance).getTotalCash(token); uint256 totalBorrow = IApeFinance(apeFinance).getTotalBorrow(token); uint256 maxBorrowAmount; if (config.borrowCap == 0) { maxBorrowAmount = totalCash; } else if (config.borrowCap > totalBorrow) { uint256 gap = config.borrowCap - totalBorrow; maxBorrowAmount = gap < totalCash ? gap : totalCash; } return maxBorrowAmount; } /// @inheritdoc IERC3156FlashLender function flashFee(address token, uint256 amount) external view override returns (uint256) { amount; require(IApeFinance(apeFinance).isMarketListed(token), "token not listed"); DataTypes.MarketConfig memory config = IApeFinance(apeFinance).getMarketConfiguration(token); require(!config.isBorrowPaused(), "borrow is paused"); return _flashFee(amount); } /// @inheritdoc IERC3156FlashLender function flashLoan(IERC3156FlashBorrower receiver, address token, uint256 amount, bytes calldata data) external override returns (bool) { require(IApeFinance(apeFinance).isMarketListed(token), "token not listed"); if (!_isDeferredLiquidityCheck) { IApeFinance(apeFinance).deferLiquidityCheck( address(this), abi.encode(receiver, token, amount, data, msg.sender) ); _isDeferredLiquidityCheck = false; } else { _loan(receiver, token, amount, data, msg.sender); } return true; } /// @inheritdoc IDeferLiquidityCheck function onDeferredLiquidityCheck(bytes memory encodedData) external override { require(msg.sender == apeFinance, "untrusted message sender"); (IERC3156FlashBorrower receiver, address token, uint256 amount, bytes memory data, address msgSender) = abi.decode(encodedData, (IERC3156FlashBorrower, address, uint256, bytes, address)); _isDeferredLiquidityCheck = true; _loan(receiver, token, amount, data, msgSender); } /* ========== RESTRICTED FUNCTIONS ========== */ /** * @notice Set the flash loan fee rate. * @param _feeRate The fee rate */ function setFeeRate(uint16 _feeRate) external onlyOwner { require(_feeRate <= MAX_FEE_RATE, "invalid fee rate"); feeRate = _feeRate; emit FeeRateSet(_feeRate); } /** * @notice Seize the token from the contract. * @param token The address of the token * @param amount The amount to seize * @param recipient The address of the recipient */ function seize(address token, uint256 amount, address recipient) external onlyOwner { IERC20(token).safeTransfer(recipient, amount); emit TokenSeized(token, amount); } /* ========== INTERNAL FUNCTIONS ========== */ /** * @dev Get the flash loan fee. * @param amount The amount to flash loan */ function _flashFee(uint256 amount) internal view returns (uint256) { return amount * feeRate / 10000; } /** * @dev Flash borrow from ApeFinance to the receiver. * @param receiver The receiver of the flash loan * @param token The token to borrow * @param amount The amount to borrow * @param data Arbitrary data that is passed to the receiver * @param msgSender The original caller */ function _loan(IERC3156FlashBorrower receiver, address token, uint256 amount, bytes memory data, address msgSender) internal { uint256 fee = _flashFee(amount); IApeFinance(apeFinance).borrow(address(this), address(receiver), token, amount); require(receiver.onFlashLoan(msgSender, token, amount, fee, data) == CALLBACK_SUCCESS, "callback failed"); // Collect repayment from the receiver with fee. IERC20(token).safeTransferFrom(address(receiver), address(this), amount + fee); uint256 allowance = IERC20(token).allowance(address(this), apeFinance); if (allowance < amount) { IERC20(token).safeApprove(apeFinance, type(uint256).max); } // Only repay the principal amount to ApeFinance. IApeFinance(apeFinance).repay(address(this), address(this), token, amount); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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); /** * @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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `from` to `to` 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 from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @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 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' 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) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @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 require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC3156FlashBorrower.sol"; interface IERC3156FlashLender { /** * @dev The amount of currency available to be lent. * @param token The loan currency. * @return The amount of `token` that can be borrowed. */ function maxFlashLoan(address token) external view returns (uint256); /** * @dev The fee to be charged for a given loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @return The amount of `token` to be charged for the loan, on top of the returned principal. */ function flashFee(address token, uint256 amount) external view returns (uint256); /** * @dev Initiate a flash loan. * @param receiver The receiver of the tokens in the loan, and the receiver of the callback. * @param token The loan currency. * @param amount The amount of tokens lent. * @param data Arbitrary data structure, intended to contain user-defined parameters. */ function flashLoan(IERC3156FlashBorrower receiver, address token, uint256 amount, bytes calldata data) external returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IDeferLiquidityCheck { /** * @dev The callback function that deferLiquidityCheck will invoke. * @param data The arbitrary data that was passed in by the caller */ function onDeferredLiquidityCheck(bytes memory data) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../libraries/DataTypes.sol"; interface IApeFinance { /* ========== USER INTERFACES ========== */ function accrueInterest(address market) external; function supply(address from, address to, address market, uint256 amount) external; function borrow(address from, address to, address asset, uint256 amount) external; function redeem(address from, address to, address asset, uint256 amount) external returns (uint256); function repay(address from, address to, address asset, uint256 amount) external returns (uint256); function liquidate( address liquidator, address borrower, address marketBorrow, address marketCollateral, uint256 repayAmount ) external returns (uint256, uint256); function deferLiquidityCheck(address user, bytes memory data) external; function getBorrowBalance(address user, address market) external view returns (uint256); function getATokenBalance(address user, address market) external view returns (uint256); function getSupplyBalance(address user, address market) external view returns (uint256); function isMarketListed(address market) external view returns (bool); function getExchangeRate(address market) external view returns (uint256); function getTotalSupply(address market) external view returns (uint256); function getTotalBorrow(address market) external view returns (uint256); function getTotalCash(address market) external view returns (uint256); function getTotalReserves(address market) external view returns (uint256); function getAccountLiquidity(address user) external view returns (uint256, uint256, uint256); function isAllowedExtension(address user, address extension) external view returns (bool); function transferAToken(address market, address from, address to, uint256 amount) external; function setSubAccountExtension(address primary, uint256 subAccountId, bool allowed) external; /* ========== MARKET CONFIGURATOR INTERFACES ========== */ function getMarketConfiguration(address market) external view returns (DataTypes.MarketConfig memory); function listMarket(address market, DataTypes.MarketConfig calldata config) external; function delistMarket(address market) external; function setMarketConfiguration(address market, DataTypes.MarketConfig calldata config) external; /* ========== CREDIT LIMIT MANAGER INTERFACES ========== */ function getCreditLimit(address user, address market) external view returns (uint256); function getUserCreditMarkets(address user) external view returns (address[] memory); function isCreditAccount(address user) external view returns (bool); function setCreditLimit(address user, address market, uint256 credit) external; /* ========== RESERVE MANAGER INTERFACES ========== */ function absorbToReserves(address market) external; function reduceReserves(address market, uint256 aTokenAmount, address recipient) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./DataTypes.sol"; library PauseFlags { /// @dev Mask for specific actions in the pause flag bit array uint8 internal constant PAUSE_SUPPLY_MASK = 0xFE; uint8 internal constant PAUSE_BORROW_MASK = 0xFD; uint8 internal constant PAUSE_TRANSFER_MASK = 0xFB; /// @dev Offsets for specific actions in the pause flag bit array uint8 internal constant PAUSE_SUPPLY_OFFSET = 0; uint8 internal constant PAUSE_BORROW_OFFSET = 1; uint8 internal constant PAUSE_TRANSFER_OFFSET = 2; /// @dev Sets the market supply paused. function setSupplyPaused(DataTypes.MarketConfig memory self, bool paused) internal pure { self.pauseFlags = (self.pauseFlags & PAUSE_SUPPLY_MASK) | (toUInt8(paused) << PAUSE_SUPPLY_OFFSET); } /// @dev Returns true if the market supply is paused, and false otherwise. function isSupplyPaused(DataTypes.MarketConfig memory self) internal pure returns (bool) { return toBool(self.pauseFlags & ~PAUSE_SUPPLY_MASK); } /// @dev Sets the market borrow paused. function setBorrowPaused(DataTypes.MarketConfig memory self, bool paused) internal pure { self.pauseFlags = (self.pauseFlags & PAUSE_BORROW_MASK) | (toUInt8(paused) << PAUSE_BORROW_OFFSET); } /// @dev Returns true if the market borrow is paused, and false otherwise. function isBorrowPaused(DataTypes.MarketConfig memory self) internal pure returns (bool) { return toBool(self.pauseFlags & ~PAUSE_BORROW_MASK); } /// @dev Sets the market transfer paused. function setTransferPaused(DataTypes.MarketConfig memory self, bool paused) internal pure { self.pauseFlags = (self.pauseFlags & PAUSE_TRANSFER_MASK) | (toUInt8(paused) << PAUSE_TRANSFER_OFFSET); } /// @dev Returns true if the market transfer is paused, and false otherwise. function isTransferPaused(DataTypes.MarketConfig memory self) internal pure returns (bool) { return toBool(self.pauseFlags & ~PAUSE_TRANSFER_MASK); } /// @dev Casts a boolean to uint8. function toUInt8(bool x) internal pure returns (uint8) { return x ? 1 : 0; } /// @dev Casts a uint8 to boolean. function toBool(uint8 x) internal pure returns (bool) { return x != 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (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 functionCallWithValue(target, data, 0, "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"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // 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 /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IERC3156FlashBorrower { /** * @dev Receive a flash loan. * @param initiator The initiator of the loan. * @param token The loan currency. * @param amount The amount of tokens lent. * @param fee The additional amount of tokens to repay. * @param data Arbitrary data structure, intended to contain user-defined parameters. * @return The keccak256 hash of "ERC3156FlashBorrower.onFlashLoan" */ function onFlashLoan(address initiator, address token, uint256 amount, uint256 fee, bytes calldata data) external returns (bytes32); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; library DataTypes { struct UserBorrow { uint256 borrowBalance; uint256 borrowIndex; } struct MarketConfig { // 1 + 1 + 2 + 2 + 2 + 2 + 1 + 1 = 12 bool isListed; uint8 pauseFlags; uint16 collateralFactor; uint16 liquidationThreshold; uint16 liquidationBonus; uint16 reserveFactor; bool isPToken; bool isDelisted; // 20 + 20 + 20 + 32 + 32 + 32 address aTokenAddress; address debtTokenAddress; address interestRateModelAddress; uint256 supplyCap; uint256 borrowCap; uint256 initialExchangeRate; } struct Market { MarketConfig config; uint40 lastUpdateTimestamp; uint256 totalCash; uint256 totalBorrow; uint256 totalSupply; uint256 totalReserves; uint256 borrowIndex; mapping(address => UserBorrow) userBorrows; mapping(address => uint256) userSupplies; } }
{ "remappings": [ "ds-test/=lib/forge-std/lib/ds-test/src/", "forge-std/=lib/forge-std/src/", "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/", "openzeppelin-contracts/=lib/openzeppelin-contracts/" ], "optimizer": { "enabled": true, "runs": 200 }, "metadata": { "useLiteralContent": false, "bytecodeHash": "ipfs" }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "london", "viaIR": false, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"apeFinance_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint16","name":"feeRate","type":"uint16"}],"name":"FeeRateSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenSeized","type":"event"},{"inputs":[],"name":"CALLBACK_SUCCESS","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"apeFinance","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"feeRate","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"flashFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC3156FlashBorrower","name":"receiver","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"flashLoan","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"maxFlashLoan","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes","name":"encodedData","type":"bytes"}],"name":"onDeferredLiquidityCheck","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"seize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_feeRate","type":"uint16"}],"name":"setFeeRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000009cf2c7dd1bb947e398f9e12000f81656e4d65adb
-----Decoded View---------------
Arg [0] : apeFinance_ (address): 0x9Cf2c7dD1bB947e398f9e12000f81656e4d65adB
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000009cf2c7dd1bb947e398f9e12000f81656e4d65adb
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Multichain Portfolio | 31 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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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.