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Latest 5 from a total of 5 transactions
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Set Treasury | 15578467 | 860 days ago | IN | 0 ETH | 0.00036032 | ||||
Set Primary Pool | 15578466 | 860 days ago | IN | 0 ETH | 0.00061809 | ||||
Add Exchange Poo... | 15578463 | 860 days ago | IN | 0 ETH | 0.00109197 | ||||
Set Price Impact... | 15578431 | 860 days ago | IN | 0 ETH | 0.00035305 | ||||
Set Liquidity Ba... | 15578427 | 860 days ago | IN | 0 ETH | 0.00043352 |
Latest 25 internal transactions (View All)
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21471194 | 34 days ago | 0.00041356 ETH | ||||
21471194 | 34 days ago | 0.00003976 ETH | ||||
21471194 | 34 days ago | 0.00009344 ETH | ||||
21471194 | 34 days ago | 0.00046724 ETH | ||||
21452990 | 37 days ago | 0.00045069 ETH | ||||
21452990 | 37 days ago | 0.00004334 ETH | ||||
21452990 | 37 days ago | 0.00010183 ETH | ||||
21452990 | 37 days ago | 0.00050918 ETH | ||||
21149177 | 79 days ago | 0.00046491 ETH | ||||
21149177 | 79 days ago | 0.0000447 ETH | ||||
21149177 | 79 days ago | 0.00010505 ETH | ||||
21149177 | 79 days ago | 0.00052526 ETH | ||||
21149102 | 79 days ago | 0.00085347 ETH | ||||
21149102 | 79 days ago | 0.00008208 ETH | ||||
21149102 | 79 days ago | 0.00019284 ETH | ||||
21149102 | 79 days ago | 0.00096423 ETH | ||||
17299508 | 618 days ago | 0.01383151 ETH | ||||
17299508 | 618 days ago | 0.00133399 ETH | ||||
17299508 | 618 days ago | 0.00312438 ETH | ||||
17299508 | 618 days ago | 0.0156219 ETH | ||||
17081406 | 649 days ago | 0.03205869 ETH | ||||
17081406 | 649 days ago | 0.00310351 ETH | ||||
17081406 | 649 days ago | 0.00723879 ETH | ||||
17081406 | 649 days ago | 0.03619397 ETH | ||||
17081400 | 649 days ago | 0.01164671 ETH |
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Contract Source Code Verified (Exact Match)
Contract Name:
TreasuryHandlerAlpha
Compiler Version
v0.8.11+commit.d7f03943
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.8.11; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "@openzeppelin/contracts/utils/Address.sol"; import "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol"; import "./ExchangePoolProcessor.sol"; import "./LenientReentrancyGuard.sol"; import "./ITreasuryHandler.sol"; /** * @title Treasury handler alpha contract * @dev Sells tokens that have accumulated through taxes and sends the resulting ETH to the treasury. If * `liquidityBasisPoints` has been set to a non-zero value, then that percentage will instead be added to the designated * liquidity pool. */ contract TreasuryHandlerAlpha is ITreasuryHandler, LenientReentrancyGuard, ExchangePoolProcessor { using Address for address payable; using EnumerableSet for EnumerableSet.AddressSet; /// @notice The treasury address. address payable public treasury; /// @notice The token that accumulates through taxes. This will be sold for ETH. IERC20 public token; /// @notice The basis points of tokens to sell and add as liquidity to the pool. uint256 public liquidityBasisPoints; /// @notice The maximum price impact the sell (initiated from this contract) may have. uint256 public priceImpactBasisPoints; /// @notice The Uniswap router that handles the sell and liquidity operations. IUniswapV2Router02 public router; /// @notice Emitted when the basis points value of tokens to add as liquidity is updated. event LiquidityBasisPointsUpdated(uint256 oldBasisPoints, uint256 newBasisPoints); /// @notice Emitted when the maximum price impact basis points value is updated. event PriceImpactBasisPointsUpdated(uint256 oldBasisPoints, uint256 newBasisPoints); /// @notice Emitted when the treasury address is updated. event TreasuryAddressUpdated(address oldTreasuryAddress, address newTreasuryAddress); /** * @param treasuryAddress Address of treasury to use. * @param tokenAddress Address of token to accumulate and sell. * @param routerAddress Address of Uniswap router for sell and liquidity operations. * @param initialLiquidityBasisPoints Initial basis points value of swap to add to liquidity. * @param initialPriceImpactBasisPoints Initial basis points value of price impact to account for during swaps. */ constructor( address treasuryAddress, address tokenAddress, address routerAddress, uint256 initialLiquidityBasisPoints, uint256 initialPriceImpactBasisPoints ) { treasury = payable(treasuryAddress); token = IERC20(tokenAddress); router = IUniswapV2Router02(routerAddress); liquidityBasisPoints = initialLiquidityBasisPoints; priceImpactBasisPoints = initialPriceImpactBasisPoints; } /** * @notice Perform operations before a sell action (or a liquidity addition) is executed. The accumulated tokens are * then sold for ETH. In case the number of accumulated tokens exceeds the price impact percentage threshold, then * the number will be adjusted to stay within the threshold. If a non-zero percentage is set for liquidity, then * that percentage will be added to the primary liquidity pool instead of being sold for ETH and sent to the * treasury. * @param benefactor Address of the benefactor. * @param beneficiary Address of the beneficiary. * @param amount Number of tokens in the transfer. */ function beforeTransferHandler( address benefactor, address beneficiary, uint256 amount ) external nonReentrant { // Silence a few warnings. This will be optimized out by the compiler. benefactor; amount; // No actions are done on transfers other than sells. if (!_exchangePools.contains(beneficiary)) { return; } uint256 contractTokenBalance = token.balanceOf(address(this)); if (contractTokenBalance > 0) { uint256 primaryPoolBalance = token.balanceOf(primaryPool); uint256 maxPriceImpactSale = (primaryPoolBalance * priceImpactBasisPoints) / 10000; // Ensure the price impact is within reasonable bounds. if (contractTokenBalance > maxPriceImpactSale) { contractTokenBalance = maxPriceImpactSale; } // The number of tokens to sell for liquidity purposes. This is calculated as follows: // // B P // L = - * ----- // 2 10000 // // Where: // L = tokens to sell for liquidity // B = available token balance // P = basis points of tokens to use for liquidity // // The number is divided by two to preserve the token side of the token/WETH pool. uint256 tokensForLiquidity = (contractTokenBalance * liquidityBasisPoints) / 20000; uint256 tokensForSwap = contractTokenBalance - tokensForLiquidity; uint256 currentWeiBalance = address(this).balance; _swapTokensForEth(tokensForSwap); uint256 weiEarned = address(this).balance - currentWeiBalance; // No need to divide this number, because that was only to have enough tokens remaining to pair with this // ETH value. uint256 weiForLiquidity = (weiEarned * liquidityBasisPoints) / 10000; if (tokensForLiquidity > 0) { _addLiquidity(tokensForLiquidity, weiForLiquidity); } // It's cheaper to get the active balance rather than calculating based off of the `currentWeiBalance` and // `weiForLiquidity` numbers. uint256 remainingWeiBalance = address(this).balance; if (remainingWeiBalance > 0) { treasury.sendValue(remainingWeiBalance); } } } /** * @notice Perform post-transfer operations. This contract ignores those operations, hence nothing happens. * @param benefactor Address of the benefactor. * @param beneficiary Address of the beneficiary. * @param amount Number of tokens in the transfer. */ function afterTransferHandler( address benefactor, address beneficiary, uint256 amount ) external nonReentrant { // Silence a few warnings. This will be optimized out by the compiler. benefactor; beneficiary; amount; return; } /** * @notice Set new liquidity basis points value. * @param newBasisPoints New liquidity basis points value. Cannot exceed 10,000 (i.e., 100%) as that would break the * calculation. */ function setLiquidityBasisPoints(uint256 newBasisPoints) external onlyOwner { require( newBasisPoints <= 10000, "TreasuryHandlerAlpha:setLiquidityPercentage:INVALID_PERCENTAGE: Cannot set more than 10,000 basis points." ); uint256 oldBasisPoints = liquidityBasisPoints; liquidityBasisPoints = newBasisPoints; emit LiquidityBasisPointsUpdated(oldBasisPoints, newBasisPoints); } /** * @notice Set new price impact basis points value. * @param newBasisPoints New price impact basis points value. */ function setPriceImpactBasisPoints(uint256 newBasisPoints) external onlyOwner { require( newBasisPoints < 1500, "TreasuryHandlerAlpha:setPriceImpactBasisPoints:OUT_OF_BOUNDS: Cannot set price impact too high." ); uint256 oldBasisPoints = priceImpactBasisPoints; priceImpactBasisPoints = newBasisPoints; emit PriceImpactBasisPointsUpdated(oldBasisPoints, newBasisPoints); } /** * @notice Set new treasury address. * @param newTreasuryAddress New treasury address. */ function setTreasury(address newTreasuryAddress) external onlyOwner { require( newTreasuryAddress != address(0), "TreasuryHandlerAlpha:setTreasury:ZERO_TREASURY: Cannot set zero address as treasury." ); address oldTreasuryAddress = address(treasury); treasury = payable(newTreasuryAddress); emit TreasuryAddressUpdated(oldTreasuryAddress, newTreasuryAddress); } /** * @notice Withdraw any tokens or ETH stuck in the treasury handler. * @param tokenAddress Address of the token to withdraw. If set to the zero address, ETH will be withdrawn. * @param amount The number of tokens to withdraw. */ function withdraw(address tokenAddress, uint256 amount) external onlyOwner { require( tokenAddress != address(token), "TreasuryHandlerAlpha:withdraw:INVALID_TOKEN: Not allowed to withdraw token required for swaps." ); if (tokenAddress == address(0)) { treasury.sendValue(amount); } else { IERC20(tokenAddress).transferFrom(address(this), address(treasury), amount); } } /** * @dev Swap accumulated tokens for ETH. * @param tokenAmount Number of tokens to swap for ETH. */ function _swapTokensForEth(uint256 tokenAmount) private { // The ETH/token pool is the primary pool. It always exists. address[] memory path = new address[](2); path[0] = address(token); path[1] = router.WETH(); // Ensure the router can perform the swap for the designated number of tokens. token.approve(address(router), tokenAmount); router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount, 0, path, address(this), block.timestamp); } /** * @dev Add liquidity to primary pool. * @param tokenAmount Number of tokens to add as liquidity. * @param weiAmount ETH value to pair with the tokens. */ function _addLiquidity(uint256 tokenAmount, uint256 weiAmount) private { // Ensure the router can perform the transfer for the designated number of tokens. token.approve(address(router), tokenAmount); // Both minimum values are set to zero to allow for any form of slippage. router.addLiquidityETH{ value: weiAmount }( address(token), tokenAmount, 0, 0, address(treasury), block.timestamp ); } /** * @notice Allow contract to accept ETH. */ receive() external payable {} }
// SPDX-License-Identifier: MIT pragma solidity 0.8.11; /** * @title Treasury handler interface * @dev Any class that implements this interface can be used for protocol-specific operations pertaining to the treasury. */ interface ITreasuryHandler { /** * @notice Perform operations before a transfer is executed. * @param benefactor Address of the benefactor. * @param beneficiary Address of the beneficiary. * @param amount Number of tokens in the transfer. */ function beforeTransferHandler( address benefactor, address beneficiary, uint256 amount ) external; /** * @notice Perform operations after a transfer is executed. * @param benefactor Address of the benefactor. * @param beneficiary Address of the beneficiary. * @param amount Number of tokens in the transfer. */ function afterTransferHandler( address benefactor, address beneficiary, uint256 amount ) external; }
// SPDX-License-Identifier: MIT pragma solidity 0.8.11; /** * @title Lenient Reentrancy Guard * @dev A near carbon copy of OpenZeppelin's ReentrancyGuard contract. The difference between the two being that this * contract will silently return instead of failing. */ abstract contract LenientReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { if (_status == _ENTERED) { return; } _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT pragma solidity 0.8.11; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol"; /** * @title Exchange pool processor abstract contract. * @dev Keeps an enumerable set of designated exchange addresses as well as a single primary pool address. */ abstract contract ExchangePoolProcessor is Ownable { using EnumerableSet for EnumerableSet.AddressSet; /// @dev Set of exchange pool addresses. EnumerableSet.AddressSet internal _exchangePools; /// @notice Primary exchange pool address. address public primaryPool; /// @notice Emitted when an exchange pool address is added to the set of tracked pool addresses. event ExchangePoolAdded(address exchangePool); /// @notice Emitted when an exchange pool address is removed from the set of tracked pool addresses. event ExchangePoolRemoved(address exchangePool); /// @notice Emitted when the primary pool address is updated. event PrimaryPoolUpdated(address oldPrimaryPool, address newPrimaryPool); /** * @notice Get list of addresses designated as exchange pools. * @return An array of exchange pool addresses. */ function getExchangePoolAddresses() external view returns (address[] memory) { return _exchangePools.values(); } /** * @notice Add an address to the set of exchange pool addresses. * @dev Nothing happens if the pool already exists in the set. * @param exchangePool Address of exchange pool to add. */ function addExchangePool(address exchangePool) external onlyOwner { if (_exchangePools.add(exchangePool)) { emit ExchangePoolAdded(exchangePool); } } /** * @notice Remove an address from the set of exchange pool addresses. * @dev Nothing happens if the pool doesn't exist in the set.. * @param exchangePool Address of exchange pool to remove. */ function removeExchangePool(address exchangePool) external onlyOwner { if (_exchangePools.remove(exchangePool)) { emit ExchangePoolRemoved(exchangePool); } } /** * @notice Set exchange pool address as primary pool. * @dev To prevent issues, only addresses inside the set of exchange pool addresses can be selected as primary pool. * @param exchangePool Address of exchange pool to set as primary pool. */ function setPrimaryPool(address exchangePool) external onlyOwner { require( _exchangePools.contains(exchangePool), "ExchangePoolProcessor:setPrimaryPool:INVALID_POOL: Given address is not registered as exchange pool." ); require( primaryPool != exchangePool, "ExchangePoolProcessor:setPrimaryPool:ALREADY_SET: This address is already the primary pool address." ); address oldPrimaryPool = primaryPool; primaryPool = exchangePool; emit PrimaryPoolUpdated(oldPrimaryPool, exchangePool); } }
pragma solidity >=0.6.2; import './IUniswapV2Router01.sol'; interface IUniswapV2Router02 is IUniswapV2Router01 { function removeLiquidityETHSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountETH); function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountETH); function swapExactTokensForTokensSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; function swapExactETHForTokensSupportingFeeOnTransferTokens( uint amountOutMin, address[] calldata path, address to, uint deadline ) external payable; function swapExactTokensForETHSupportingFeeOnTransferTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (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 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"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(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) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(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) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason 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 { // 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 // 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 v4.7.0) (utils/structs/EnumerableSet.sol) pragma solidity ^0.8.0; /** * @dev Library for managing * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive * types. * * Sets have the following properties: * * - Elements are added, removed, and checked for existence in constant time * (O(1)). * - Elements are enumerated in O(n). No guarantees are made on the ordering. * * ``` * contract Example { * // Add the library methods * using EnumerableSet for EnumerableSet.AddressSet; * * // Declare a set state variable * EnumerableSet.AddressSet private mySet; * } * ``` * * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) * and `uint256` (`UintSet`) are supported. * * [WARNING] * ==== * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable. * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. * * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an array of EnumerableSet. * ==== */ library EnumerableSet { // To implement this library for multiple types with as little code // repetition as possible, we write it in terms of a generic Set type with // bytes32 values. // The Set implementation uses private functions, and user-facing // implementations (such as AddressSet) are just wrappers around the // underlying Set. // This means that we can only create new EnumerableSets for types that fit // in bytes32. struct Set { // Storage of set values bytes32[] _values; // Position of the value in the `values` array, plus 1 because index 0 // means a value is not in the set. mapping(bytes32 => uint256) _indexes; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function _add(Set storage set, bytes32 value) private returns (bool) { if (!_contains(set, value)) { set._values.push(value); // The value is stored at length-1, but we add 1 to all indexes // and use 0 as a sentinel value set._indexes[value] = set._values.length; return true; } else { return false; } } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function _remove(Set storage set, bytes32 value) private returns (bool) { // We read and store the value's index to prevent multiple reads from the same storage slot uint256 valueIndex = set._indexes[value]; if (valueIndex != 0) { // Equivalent to contains(set, value) // To delete an element from the _values array in O(1), we swap the element to delete with the last one in // the array, and then remove the last element (sometimes called as 'swap and pop'). // This modifies the order of the array, as noted in {at}. uint256 toDeleteIndex = valueIndex - 1; uint256 lastIndex = set._values.length - 1; if (lastIndex != toDeleteIndex) { bytes32 lastValue = set._values[lastIndex]; // Move the last value to the index where the value to delete is set._values[toDeleteIndex] = lastValue; // Update the index for the moved value set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex } // Delete the slot where the moved value was stored set._values.pop(); // Delete the index for the deleted slot delete set._indexes[value]; return true; } else { return false; } } /** * @dev Returns true if the value is in the set. O(1). */ function _contains(Set storage set, bytes32 value) private view returns (bool) { return set._indexes[value] != 0; } /** * @dev Returns the number of values on the set. O(1). */ function _length(Set storage set) private view returns (uint256) { return set._values.length; } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function _at(Set storage set, uint256 index) private view returns (bytes32) { return set._values[index]; } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function _values(Set storage set) private view returns (bytes32[] memory) { return set._values; } // Bytes32Set struct Bytes32Set { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _add(set._inner, value); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { return _remove(set._inner, value); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { return _contains(set._inner, value); } /** * @dev Returns the number of values in the set. O(1). */ function length(Bytes32Set storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { return _at(set._inner, index); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { return _values(set._inner); } // AddressSet struct AddressSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(AddressSet storage set, address value) internal returns (bool) { return _add(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(AddressSet storage set, address value) internal returns (bool) { return _remove(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(AddressSet storage set, address value) internal view returns (bool) { return _contains(set._inner, bytes32(uint256(uint160(value)))); } /** * @dev Returns the number of values in the set. O(1). */ function length(AddressSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(AddressSet storage set, uint256 index) internal view returns (address) { return address(uint160(uint256(_at(set._inner, index)))); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(AddressSet storage set) internal view returns (address[] memory) { bytes32[] memory store = _values(set._inner); address[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } // UintSet struct UintSet { Set _inner; } /** * @dev Add a value to a set. O(1). * * Returns true if the value was added to the set, that is if it was not * already present. */ function add(UintSet storage set, uint256 value) internal returns (bool) { return _add(set._inner, bytes32(value)); } /** * @dev Removes a value from a set. O(1). * * Returns true if the value was removed from the set, that is if it was * present. */ function remove(UintSet storage set, uint256 value) internal returns (bool) { return _remove(set._inner, bytes32(value)); } /** * @dev Returns true if the value is in the set. O(1). */ function contains(UintSet storage set, uint256 value) internal view returns (bool) { return _contains(set._inner, bytes32(value)); } /** * @dev Returns the number of values on the set. O(1). */ function length(UintSet storage set) internal view returns (uint256) { return _length(set._inner); } /** * @dev Returns the value stored at position `index` in the set. O(1). * * Note that there are no guarantees on the ordering of values inside the * array, and it may change when more values are added or removed. * * Requirements: * * - `index` must be strictly less than {length}. */ function at(UintSet storage set, uint256 index) internal view returns (uint256) { return uint256(_at(set._inner, index)); } /** * @dev Return the entire set in an array * * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that * this function has an unbounded cost, and using it as part of a state-changing function may render the function * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. */ function values(UintSet storage set) internal view returns (uint256[] memory) { bytes32[] memory store = _values(set._inner); uint256[] memory result; /// @solidity memory-safe-assembly assembly { result := store } return result; } }
// 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); } }
pragma solidity >=0.6.2; interface IUniswapV2Router01 { function factory() external pure returns (address); function WETH() external pure returns (address); function addLiquidity( address tokenA, address tokenB, uint amountADesired, uint amountBDesired, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB, uint liquidity); function addLiquidityETH( address token, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external payable returns (uint amountToken, uint amountETH, uint liquidity); function removeLiquidity( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline ) external returns (uint amountA, uint amountB); function removeLiquidityETH( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline ) external returns (uint amountToken, uint amountETH); function removeLiquidityWithPermit( address tokenA, address tokenB, uint liquidity, uint amountAMin, uint amountBMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountA, uint amountB); function removeLiquidityETHWithPermit( address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s ) external returns (uint amountToken, uint amountETH); function swapExactTokensForTokens( uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapTokensForExactTokens( uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline ) external returns (uint[] memory amounts); function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external returns (uint[] memory amounts); function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline) external payable returns (uint[] memory amounts); function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB); function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut); function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn); function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts); function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts); }
// 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; } }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
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[{"inputs":[{"internalType":"address","name":"treasuryAddress","type":"address"},{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"address","name":"routerAddress","type":"address"},{"internalType":"uint256","name":"initialLiquidityBasisPoints","type":"uint256"},{"internalType":"uint256","name":"initialPriceImpactBasisPoints","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"exchangePool","type":"address"}],"name":"ExchangePoolAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"exchangePool","type":"address"}],"name":"ExchangePoolRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"oldBasisPoints","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBasisPoints","type":"uint256"}],"name":"LiquidityBasisPointsUpdated","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":"uint256","name":"oldBasisPoints","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newBasisPoints","type":"uint256"}],"name":"PriceImpactBasisPointsUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldPrimaryPool","type":"address"},{"indexed":false,"internalType":"address","name":"newPrimaryPool","type":"address"}],"name":"PrimaryPoolUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldTreasuryAddress","type":"address"},{"indexed":false,"internalType":"address","name":"newTreasuryAddress","type":"address"}],"name":"TreasuryAddressUpdated","type":"event"},{"inputs":[{"internalType":"address","name":"exchangePool","type":"address"}],"name":"addExchangePool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"benefactor","type":"address"},{"internalType":"address","name":"beneficiary","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"afterTransferHandler","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"benefactor","type":"address"},{"internalType":"address","name":"beneficiary","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"beforeTransferHandler","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getExchangePoolAddresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"liquidityBasisPoints","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"priceImpactBasisPoints","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"primaryPool","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"exchangePool","type":"address"}],"name":"removeExchangePool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"contract IUniswapV2Router02","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"newBasisPoints","type":"uint256"}],"name":"setLiquidityBasisPoints","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newBasisPoints","type":"uint256"}],"name":"setPriceImpactBasisPoints","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"exchangePool","type":"address"}],"name":"setPrimaryPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newTreasuryAddress","type":"address"}],"name":"setTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasury","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
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)
000000000000000000000000673ed2dbd171a2cb7f596bc8bf7bc6080b592afe00000000000000000000000038bea41c549e33ef4a7c3a8f3e2b87bf15cdb4fd0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d00000000000000000000000000000000000000000000000000000000000007d0000000000000000000000000000000000000000000000000000000000000012c
-----Decoded View---------------
Arg [0] : treasuryAddress (address): 0x673ed2DbD171a2cB7F596Bc8bF7bc6080b592Afe
Arg [1] : tokenAddress (address): 0x38beA41C549E33Ef4A7c3A8F3e2b87bF15Cdb4Fd
Arg [2] : routerAddress (address): 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
Arg [3] : initialLiquidityBasisPoints (uint256): 2000
Arg [4] : initialPriceImpactBasisPoints (uint256): 300
-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000673ed2dbd171a2cb7f596bc8bf7bc6080b592afe
Arg [1] : 00000000000000000000000038bea41c549e33ef4a7c3a8f3e2b87bf15cdb4fd
Arg [2] : 0000000000000000000000007a250d5630b4cf539739df2c5dacb4c659f2488d
Arg [3] : 00000000000000000000000000000000000000000000000000000000000007d0
Arg [4] : 000000000000000000000000000000000000000000000000000000000000012c
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Multichain Portfolio | 30 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.