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0xbb85f7da7147e94a3c8869cad2391aeb001e022fcb9aead11d316878b2a9580f | Withdraw | (pending) | 2 days ago | IN | 0 ETH | (Pending) | |||
Withdraw | 21825899 | 31 mins ago | IN | 0 ETH | 0.00012051 | ||||
Withdraw | 21825812 | 48 mins ago | IN | 0 ETH | 0.00015278 | ||||
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Withdraw | 21825567 | 1 hr ago | IN | 0 ETH | 0.00008428 | ||||
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Withdraw | 21825516 | 1 hr ago | IN | 0 ETH | 0.0002207 | ||||
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Withdraw | 21824476 | 5 hrs ago | IN | 0 ETH | 0.00012255 |
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Contract Source Code Verified (Exact Match)
Contract Name:
SimpleStakingERC20
Compiler Version
v0.8.23+commit.f704f362
Optimization Enabled:
Yes with 200 runs
Other Settings:
shanghai EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED pragma solidity 0.8.23; // External dependencies import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol"; import {Ownable, Ownable2Step} from "@openzeppelin/contracts/access/Ownable2Step.sol"; // Internal dependencies import {ISimpleStakingERC20} from "./interfaces/ISimpleStakingERC20.sol"; contract SimpleStakingERC20 is Ownable2Step, ReentrancyGuard, ISimpleStakingERC20 { using SafeERC20 for IERC20; /*////////////////////////////////////////////////////////////// VARIABLES //////////////////////////////////////////////////////////////*/ /// @notice Mapping of supported tokens /// IERC20 address -> bool (true if supported) mapping(IERC20 => Supported) public supportedTokens; /// @notice Total staked balance for each token /// IERC20 address -> uint256 (total staked balance) mapping(IERC20 => uint256) public totalStakedBalance; /// @notice Staked balances for each user /// user address -> IERC20 address -> uint256 (staked balance) mapping(address => mapping(IERC20 => uint256)) public stakedBalances; /*////////////////////////////////////////////////////////////// CONSTRUCTOR //////////////////////////////////////////////////////////////*/ constructor(address _owner) Ownable(_owner) {} /*////////////////////////////////////////////////////////////// RESTRICTED //////////////////////////////////////////////////////////////*/ /// @inheritdoc ISimpleStakingERC20 function supportToken(IERC20 _token, Supported calldata _supported) external onlyOwner { if (address(_token) == address(0)) revert ADDRESS_NULL(); supportedTokens[_token] = _supported; emit SupportedToken(_token, _supported); } /// @inheritdoc ISimpleStakingERC20 function rescueERC20(IERC20 _token) external onlyOwner { _token.safeTransfer(owner(), _token.balanceOf(address(this)) - totalStakedBalance[_token]); } /*////////////////////////////////////////////////////////////// PUBLIC //////////////////////////////////////////////////////////////*/ /// @inheritdoc ISimpleStakingERC20 function deposit(IERC20 _token, uint256 _amount, address _receiver) external nonReentrant { if (_amount == 0) revert AMOUNT_NULL(); if (_receiver == address(0)) revert ADDRESS_NULL(); if (!supportedTokens[_token].deposit) revert TOKEN_NOT_ALLOWED(_token); uint256 bal = _token.balanceOf(address(this)); _token.safeTransferFrom(msg.sender, address(this), _amount); _amount = _token.balanceOf(address(this)) - bal; // To handle deflationary tokens totalStakedBalance[_token] += _amount; unchecked { stakedBalances[_receiver][_token] += _amount; } emit Deposit(_token, _receiver, _amount); } /// @inheritdoc ISimpleStakingERC20 function withdraw(IERC20 _token, uint256 _amount, address _receiver) external nonReentrant { if (_amount == 0) revert AMOUNT_NULL(); if (stakedBalances[msg.sender][_token] < _amount) revert INSUFFICIENT_BALANCE(); if (_receiver == address(0)) revert ADDRESS_NULL(); if (!supportedTokens[_token].withdraw) revert TOKEN_NOT_ALLOWED(_token); unchecked { totalStakedBalance[_token] -= _amount; stakedBalances[msg.sender][_token] -= _amount; } _token.safeTransfer(_receiver, _amount); emit Withdraw(_token, msg.sender, _amount); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.20; /** * @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 value of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the value of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool); /** * @dev Moves a `value` amount of tokens from `from` to `to` using the * allowance mechanism. `value` 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 value) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.20; import {IERC20} from "../IERC20.sol"; import {IERC20Permit} from "../extensions/IERC20Permit.sol"; import {Address} from "../../../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; /** * @dev An operation with an ERC20 token failed. */ error SafeERC20FailedOperation(address token); /** * @dev Indicates a failed `decreaseAllowance` request. */ error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease); /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value))); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value))); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); forceApprove(token, spender, oldAllowance + value); } /** * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no * value, non-reverting calls are assumed to be successful. */ function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal { unchecked { uint256 currentAllowance = token.allowance(address(this), spender); if (currentAllowance < requestedDecrease) { revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease); } forceApprove(token, spender, currentAllowance - requestedDecrease); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value)); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0))); _callOptionalReturn(token, approvalCall); } } /** * @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); if (returndata.length != 0 && !abi.decode(returndata, (bool))) { revert SafeERC20FailedOperation(address(token)); } } /** * @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). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // 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 cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol) pragma solidity ^0.8.20; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // 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; /** * @dev Unauthorized reentrant call. */ error ReentrancyGuardReentrantCall(); 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() { _nonReentrantBefore(); _; _nonReentrantAfter(); } function _nonReentrantBefore() private { // On the first call to nonReentrant, _status will be NOT_ENTERED if (_status == ENTERED) { revert ReentrancyGuardReentrantCall(); } // Any calls to nonReentrant after this point will fail _status = ENTERED; } function _nonReentrantAfter() private { // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = NOT_ENTERED; } /** * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a * `nonReentrant` function in the call stack. */ function _reentrancyGuardEntered() internal view returns (bool) { return _status == ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol) pragma solidity ^0.8.20; import {Ownable} from "./Ownable.sol"; /** * @dev Contract module which provides access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * The initial owner is specified at deployment time in the constructor for `Ownable`. This * can later be changed with {transferOwnership} and {acceptOwnership}. * * This module is used through inheritance. It will make available all functions * from parent (Ownable). */ abstract contract Ownable2Step is Ownable { address private _pendingOwner; event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner); /** * @dev Returns the address of the pending owner. */ function pendingOwner() public view virtual returns (address) { return _pendingOwner; } /** * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual override onlyOwner { _pendingOwner = newOwner; emit OwnershipTransferStarted(owner(), newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual override { delete _pendingOwner; super._transferOwnership(newOwner); } /** * @dev The new owner accepts the ownership transfer. */ function acceptOwnership() public virtual { address sender = _msgSender(); if (pendingOwner() != sender) { revert OwnableUnauthorizedAccount(sender); } _transferOwnership(sender); } }
// SPDX-License-Identifier: UNLICENSED pragma solidity 0.8.23; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; interface ISimpleStakingERC20 { /// @notice Struct to hold the supported booleans /// @param deposit true if deposit is supported /// @param withdraw true if withdraw is supported struct Supported { bool deposit; bool withdraw; } /// @notice Error emitted when the amount is null error AMOUNT_NULL(); /// @notice Error emitted when the address is null error ADDRESS_NULL(); /// @notice Error emitted when the balance is insufficient error INSUFFICIENT_BALANCE(); /// @notice Error emitted when the token is not allowed error TOKEN_NOT_ALLOWED(IERC20 token); /// @notice Event emitted when a token is added or removed /// @param token address of the token /// @param supported struct with deposit and withdraw booleans event SupportedToken(IERC20 indexed token, Supported supported); /// @notice Event emitted when a deposit is made /// @param token address of the token /// @param staker address of the staker /// @param amount amount of the deposit event Deposit(IERC20 indexed token, address indexed staker, uint256 amount); /// @notice Event emitted when a withdrawal is made /// @param token address of the token /// @param staker address of the staker /// @param amount amount of the withdrawal event Withdraw(IERC20 indexed token, address indexed staker, uint256 amount); /// @notice Method to deposit tokens /// @dev token are transferred from the sender, and the receiver is credited /// @param _token address of the token /// @param _amount amount to deposit /// @param _receiver address of the receiver function deposit(IERC20 _token, uint256 _amount, address _receiver) external; /// @notice Method to rescue tokens, only callable by the owner /// @dev difference between balance and internal balance is transferred to the owner /// @param _token address of the token function rescueERC20(IERC20 _token) external; /// @notice Method to add or remove a token /// @dev only callable by the owner /// @param _token address of the token /// @param _supported struct with deposit and withdraw booleans function supportToken(IERC20 _token, Supported calldata _supported) external; /// @notice Method to rescue tokens, only callable by the owner /// @dev token are transferred to the receiver and sender is credited /// @param _token address of the token /// @param _amount amount to withdraw /// @param _receiver address of the receiver function withdraw(IERC20 _token, uint256 _amount, address _receiver) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol) pragma solidity ^0.8.20; /** * @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. * * ==== Security Considerations * * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be * considered as an intention to spend the allowance in any specific way. The second is that because permits have * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be * generally recommended is: * * ```solidity * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public { * try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {} * doThing(..., value); * } * * function doThing(..., uint256 value) public { * token.safeTransferFrom(msg.sender, address(this), value); * ... * } * ``` * * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also * {SafeERC20-safeTransferFrom}). * * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so * contracts should have entry points that don't rely on permit. */ 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]. * * CAUTION: See Security Considerations above. */ 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 v5.0.0) (utils/Address.sol) pragma solidity ^0.8.20; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev The ETH balance of the account is not enough to perform the operation. */ error AddressInsufficientBalance(address account); /** * @dev There's no code at `target` (it is not a contract). */ error AddressEmptyCode(address target); /** * @dev A call to an address target failed. The target may have reverted. */ error FailedInnerCall(); /** * @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://consensys.net/diligence/blog/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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { if (address(this).balance < amount) { revert AddressInsufficientBalance(address(this)); } (bool success, ) = recipient.call{value: amount}(""); if (!success) { revert FailedInnerCall(); } } /** * @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 or custom error, it is bubbled * up by this function (like regular Solidity function calls). However, if * the call reverted with no returned reason, this function reverts with a * {FailedInnerCall} error. * * 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. */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCallWithValue(target, data, 0); } /** * @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`. */ function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { if (address(this).balance < value) { revert AddressInsufficientBalance(address(this)); } (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an * unsuccessful call. */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata ) internal view returns (bytes memory) { if (!success) { _revert(returndata); } else { // only check if target is a contract if the call was successful and the return data is empty // otherwise we already know that it was a contract if (returndata.length == 0 && target.code.length == 0) { revert AddressEmptyCode(target); } return returndata; } } /** * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the * revert reason or with a default {FailedInnerCall} error. */ function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) { if (!success) { _revert(returndata); } else { return returndata; } } /** * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}. */ function _revert(bytes memory returndata) 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 FailedInnerCall(); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol) pragma solidity ^0.8.20; import {Context} from "../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. * * The initial owner is set to the address provided by the deployer. 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; /** * @dev The caller account is not authorized to perform an operation. */ error OwnableUnauthorizedAccount(address account); /** * @dev The owner is not a valid owner account. (eg. `address(0)`) */ error OwnableInvalidOwner(address owner); event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the address provided by the deployer as the initial owner. */ constructor(address initialOwner) { if (initialOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _transferOwnership(initialOwner); } /** * @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 { if (owner() != _msgSender()) { revert OwnableUnauthorizedAccount(_msgSender()); } } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby disabling 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 { if (newOwner == address(0)) { revert OwnableInvalidOwner(address(0)); } _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 v5.0.1) (utils/Context.sol) pragma solidity ^0.8.20; /** * @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; } function _contextSuffixLength() internal view virtual returns (uint256) { return 0; } }
{ "remappings": [ "forge-std/=lib/forge-std/src/", "ds-test/=lib/forge-std/lib/ds-test/src/", "solmate/=lib/solmate/src/", "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/" ], "optimizer": { "enabled": true, "runs": 200 }, "metadata": { "useLiteralContent": false, "bytecodeHash": "ipfs", "appendCBOR": true }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "evmVersion": "shanghai", "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ADDRESS_NULL","type":"error"},{"inputs":[],"name":"AMOUNT_NULL","type":"error"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"INSUFFICIENT_BALANCE","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"TOKEN_NOT_ALLOWED","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"contract IERC20","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferStarted","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":true,"internalType":"contract IERC20","name":"token","type":"address"},{"components":[{"internalType":"bool","name":"deposit","type":"bool"},{"internalType":"bool","name":"withdraw","type":"bool"}],"indexed":false,"internalType":"struct ISimpleStakingERC20.Supported","name":"supported","type":"tuple"}],"name":"SupportedToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"contract IERC20","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"staker","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_receiver","type":"address"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"}],"name":"rescueERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"contract IERC20","name":"","type":"address"}],"name":"stakedBalances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"components":[{"internalType":"bool","name":"deposit","type":"bool"},{"internalType":"bool","name":"withdraw","type":"bool"}],"internalType":"struct ISimpleStakingERC20.Supported","name":"_supported","type":"tuple"}],"name":"supportToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"name":"supportedTokens","outputs":[{"internalType":"bool","name":"deposit","type":"bool"},{"internalType":"bool","name":"withdraw","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"name":"totalStakedBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_receiver","type":"address"}],"name":"withdraw","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)
000000000000000000000000174ae6ebff5e678a1bee298e1ff7df799c7c1a08
-----Decoded View---------------
Arg [0] : _owner (address): 0x174Ae6eBFf5E678a1BeE298E1fF7dF799C7c1A08
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000174ae6ebff5e678a1bee298e1ff7df799c7c1a08
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
ETH | 78.74% | $2,769.76 | 46,613.146 | $129,107,227.21 | |
ETH | 14.88% | $2,681.11 | 9,097.7766 | $24,392,161.99 | |
ETH | 2.48% | $2,803.55 | 1,450.6099 | $4,066,863.37 | |
ETH | 1.55% | $2,623.42 | 968.7803 | $2,541,521.82 | |
ETH | 0.79% | $2,807.15 | 460.5864 | $1,292,935.22 | |
ETH | 0.46% | $2,708.78 | 275.9764 | $747,559.48 | |
ETH | 0.26% | $0.015169 | 28,106,223.5243 | $426,351.74 | |
ETH | 0.24% | $3,109.45 | 128.344 | $399,079.19 | |
ETH | 0.22% | $2,693.06 | 132.4684 | $356,745.33 | |
ETH | 0.17% | $0.048537 | 5,746,206.1583 | $278,905.5 | |
ETH | 0.14% | $2,711.86 | 82.8861 | $224,775.41 | |
ETH | 0.05% | $1 | 75,673.5906 | $75,900.61 | |
ETH | 0.02% | $2,920.61 | 10.1639 | $29,684.94 | |
ETH | <0.01% | $2,602.02 | 0.9994 | $2,600.41 | |
ETH | <0.01% | $1.15 | 1,092.0767 | $1,255.89 | |
ETH | <0.01% | $2,600.81 | 0.1239 | $322.3 | |
ETH | <0.01% | $0.998013 | 113.1804 | $112.96 | |
ETH | <0.01% | $1.1 | 10.79 | $11.87 | |
BSC | <0.01% | $1.86 | 6,811.0527 | $12,696.17 |
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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.