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0x84D30DA8bE6ba709ad4374c106ACfCD4d61061E1
 

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Claim All Reward...164352902023-01-18 17:49:47535 days ago1674064187IN
0x84D30DA8...4d61061E1
0 ETH0.0081043433.48280263
Claim Rewards164340312023-01-18 13:36:35535 days ago1674048995IN
0x84D30DA8...4d61061E1
0 ETH0.0051243317.73495433
Claim Rewards164335942023-01-18 12:08:59535 days ago1674043739IN
0x84D30DA8...4d61061E1
0 ETH0.0038664615.46955518
Claim Rewards164332402023-01-18 10:57:59535 days ago1674039479IN
0x84D30DA8...4d61061E1
0 ETH0.0066065224.73984101
Claim Rewards163823692023-01-11 8:26:59542 days ago1673425619IN
0x84D30DA8...4d61061E1
0 ETH0.0032708614.57345465
Claim Rewards163811772023-01-11 4:27:47542 days ago1673411267IN
0x84D30DA8...4d61061E1
0 ETH0.0036504917.37170882
Claim Rewards163627452023-01-08 14:44:11545 days ago1673189051IN
0x84D30DA8...4d61061E1
0 ETH0.0038510918.57380559
Claim Rewards163492352023-01-06 17:28:47547 days ago1673026127IN
0x84D30DA8...4d61061E1
0 ETH0.0067438829.67737464
Claim Rewards163474722023-01-06 11:33:59547 days ago1673004839IN
0x84D30DA8...4d61061E1
0 ETH0.0052087417.68432742
Claim Rewards163342562023-01-04 15:15:35549 days ago1672845335IN
0x84D30DA8...4d61061E1
0 ETH0.0062700929.13897543
Claim Rewards163219932023-01-02 22:11:59551 days ago1672697519IN
0x84D30DA8...4d61061E1
0 ETH0.0042394919.52073793
Claim Rewards163164392023-01-02 3:35:47552 days ago1672630547IN
0x84D30DA8...4d61061E1
0 ETH0.0028981413.46851109
Claim Rewards163131662023-01-01 16:39:35552 days ago1672591175IN
0x84D30DA8...4d61061E1
0 ETH0.0042653914.5091764
Claim Rewards163114732023-01-01 10:58:59552 days ago1672570739IN
0x84D30DA8...4d61061E1
0 ETH0.002841213.08229674
Claim Rewards163057152022-12-31 15:43:47553 days ago1672501427IN
0x84D30DA8...4d61061E1
0 ETH0.004204919.36149331
Claim Rewards162770052022-12-27 15:33:47557 days ago1672155227IN
0x84D30DA8...4d61061E1
0 ETH0.0053569424.66605418
Claim Rewards162765152022-12-27 13:55:23557 days ago1672149323IN
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0 ETH0.0026860112.4826899
Claim Rewards162764532022-12-27 13:42:59557 days ago1672148579IN
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0 ETH0.0037716312.8296088
Claim Rewards162718022022-12-26 22:06:23558 days ago1672092383IN
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0 ETH0.0040327113.94537921
Claim Rewards162459972022-12-23 7:42:59561 days ago1671781379IN
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0 ETH0.0027776412.90853233
Claim Rewards162438912022-12-23 0:39:59562 days ago1671755999IN
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Claim Rewards162226602022-12-20 1:36:11565 days ago1671500171IN
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Claim Rewards161839522022-12-14 15:53:11570 days ago1671033191IN
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0 ETH0.0032823114.01027972
Claim Rewards161730412022-12-13 3:17:11572 days ago1670901431IN
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Contract Source Code Verified (Exact Match)

Contract Name:
StakingRewardsHelper

Compiler Version
v0.8.11+commit.d7f03943

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion, MIT license
File 1 of 9 : StakingRewardsHelper.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./interfaces/StakingRewardsInterface.sol";
import "./interfaces/StakingRewardsFactoryInterface.sol";

contract StakingRewardsHelper is Ownable {
    using SafeERC20 for IERC20;

    StakingRewardsFactoryInterface public immutable factory;

    /**
     * @notice Emitted when tokens are seized
     */
    event TokenSeized(address token, uint256 amount);

    /* ========== CONSTRUCTOR ========== */

    constructor(address _factory) {
        factory = StakingRewardsFactoryInterface(_factory);
    }

    /* ========== VIEWS ========== */

    struct RewardTokenInfo {
        address rewardTokenAddress;
        string rewardTokenSymbol;
        uint8 rewardTokenDecimals;
    }

    struct RewardClaimable {
        RewardTokenInfo rewardToken;
        uint256 amount;
    }

    struct UserStaked {
        address stakingTokenAddress;
        uint256 balance;
    }

    struct StakingInfo {
        address stakingTokenAddress;
        uint256 totalSupply;
        RewardRate[] rewardRates;
    }

    struct RewardRate {
        address rewardTokenAddress;
        uint256 rate;
    }

    /**
     * @notice Getthe reward token info
     * @param rewardToken The reward token
     * @return The reward token info
     */
    function getRewardTokenInfo(address rewardToken)
        public
        view
        returns (RewardTokenInfo memory)
    {
        return
            RewardTokenInfo({
                rewardTokenAddress: rewardToken,
                rewardTokenSymbol: IERC20Metadata(rewardToken).symbol(),
                rewardTokenDecimals: IERC20Metadata(rewardToken).decimals()
            });
    }

    /**
     * @notice Get user claimable rewards
     * @param account The account
     * @param rewardTokens The list of reward tokens
     * @return The list of user claimable rewards
     */
    function getUserClaimableRewards(
        address account,
        address[] calldata rewardTokens
    ) public view returns (RewardClaimable[] memory) {
        RewardClaimable[] memory rewardsClaimable = new RewardClaimable[](
            rewardTokens.length
        );

        address[] memory allStakingRewards = factory.getAllStakingRewards();
        for (uint256 i = 0; i < rewardTokens.length; i++) {
            uint256 amount;
            for (uint256 j = 0; j < allStakingRewards.length; j++) {
                address stakingRewards = allStakingRewards[j];
                amount += StakingRewardsInterface(stakingRewards).earned(
                    rewardTokens[i],
                    account
                );
            }

            rewardsClaimable[i] = RewardClaimable({
                rewardToken: getRewardTokenInfo(rewardTokens[i]),
                amount: amount
            });
        }
        return rewardsClaimable;
    }

    /**
     * @notice Get user staked info
     * @param account The account
     * @return The list of user staked info
     */
    function getUserStaked(address account)
        public
        view
        returns (UserStaked[] memory)
    {
        address[] memory allStakingRewards = factory.getAllStakingRewards();
        UserStaked[] memory stakedInfo = new UserStaked[](
            allStakingRewards.length
        );
        for (uint256 i = 0; i < allStakingRewards.length; i++) {
            address stakingRewards = allStakingRewards[i];
            address stakingToken = StakingRewardsInterface(stakingRewards)
                .getStakingToken();
            uint256 balance = StakingRewardsInterface(stakingRewards).balanceOf(
                account
            );
            stakedInfo[i] = UserStaked({
                stakingTokenAddress: stakingToken,
                balance: balance
            });
        }
        return stakedInfo;
    }

    /**
     * @notice Get all the staking info
     * @return The list of staking info
     */
    function getStakingInfo() public view returns (StakingInfo[] memory) {
        address[] memory allStakingRewards = factory.getAllStakingRewards();
        StakingInfo[] memory stakingRewardRates = new StakingInfo[](
            allStakingRewards.length
        );
        for (uint256 i = 0; i < allStakingRewards.length; i++) {
            address stakingRewards = allStakingRewards[i];
            address[] memory allRewardTokens = StakingRewardsInterface(
                stakingRewards
            ).getAllRewardsTokens();

            RewardRate[] memory rewardRates = new RewardRate[](
                allRewardTokens.length
            );
            for (uint256 j = 0; j < allRewardTokens.length; j++) {
                address rewardToken = allRewardTokens[j];
                uint256 rate = StakingRewardsInterface(stakingRewards)
                    .getRewardRate(rewardToken);
                rewardRates[j] = RewardRate({
                    rewardTokenAddress: rewardToken,
                    rate: rate
                });
            }

            address stakingToken = StakingRewardsInterface(stakingRewards)
                .getStakingToken();
            uint256 totalSupply = StakingRewardsInterface(stakingRewards)
                .totalSupply();
            stakingRewardRates[i] = StakingInfo({
                stakingTokenAddress: stakingToken,
                totalSupply: totalSupply,
                rewardRates: rewardRates
            });
        }
        return stakingRewardRates;
    }

    /* ========== MUTATIVE FUNCTIONS ========== */

    /**
     * @notice Claim all rewards
     */
    function claimAllRewards() public {
        address[] memory allStakingRewards = factory.getAllStakingRewards();
        claimRewards(allStakingRewards);
    }

    /**
     * @notice Claim rewards by given staking rewards
     * @param stakingRewards The list of staking rewards
     */
    function claimRewards(address[] memory stakingRewards) public {
        for (uint256 i = 0; i < stakingRewards.length; i++) {
            StakingRewardsInterface(stakingRewards[i]).getRewardFor(msg.sender);
        }
    }

    /* ========== RESTRICTED FUNCTIONS ========== */

    /**
     * @notice Seize tokens in this contract.
     * @param token The token
     * @param amount The amount
     */
    function seize(address token, uint256 amount) external onlyOwner {
        IERC20(token).safeTransfer(owner(), amount);
        emit TokenSeized(token, amount);
    }
}

File 2 of 9 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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);
    }
}

File 3 of 9 : IERC20.sol
// 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);
}

File 4 of 9 : IERC20Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

File 5 of 9 : SafeERC20.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.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));
        }
    }

    /**
     * @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");
        }
    }
}

File 6 of 9 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 7 of 9 : Context.sol
// 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;
    }
}

File 8 of 9 : StakingRewardsFactoryInterface.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface StakingRewardsFactoryInterface {
    function getStakingRewardsCount() external view returns (uint256);

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

    function getStakingRewards(address stakingToken)
        external
        view
        returns (address);
}

File 9 of 9 : StakingRewardsInterface.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface StakingRewardsInterface {
    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function lastTimeRewardApplicable(address _rewardsToken)
        external
        view
        returns (uint256);

    function rewardPerToken(address _rewardsToken)
        external
        view
        returns (uint256);

    function earned(address _rewardsToken, address account)
        external
        view
        returns (uint256);

    function getRewardRate(address _rewardsToken)
        external
        view
        returns (uint256);

    function getRewardForDuration(address _rewardsToken)
        external
        view
        returns (uint256);

    function getRewardsTokenCount() external view returns (uint256);

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

    function getStakingToken() external view returns (address);

    function stake(uint256 amount) external;

    function stakeFor(address account, uint256 amount) external;

    function withdraw(uint256 amount) external;

    function withdrawFor(address account, uint256 amount) external;

    function getReward() external;

    function getRewardFor(address account) external;

    function exit() external;
}

Settings
{
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"_factory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"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":"claimAllRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"stakingRewards","type":"address[]"}],"name":"claimRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"contract StakingRewardsFactoryInterface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"rewardToken","type":"address"}],"name":"getRewardTokenInfo","outputs":[{"components":[{"internalType":"address","name":"rewardTokenAddress","type":"address"},{"internalType":"string","name":"rewardTokenSymbol","type":"string"},{"internalType":"uint8","name":"rewardTokenDecimals","type":"uint8"}],"internalType":"struct StakingRewardsHelper.RewardTokenInfo","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStakingInfo","outputs":[{"components":[{"internalType":"address","name":"stakingTokenAddress","type":"address"},{"internalType":"uint256","name":"totalSupply","type":"uint256"},{"components":[{"internalType":"address","name":"rewardTokenAddress","type":"address"},{"internalType":"uint256","name":"rate","type":"uint256"}],"internalType":"struct StakingRewardsHelper.RewardRate[]","name":"rewardRates","type":"tuple[]"}],"internalType":"struct StakingRewardsHelper.StakingInfo[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"address[]","name":"rewardTokens","type":"address[]"}],"name":"getUserClaimableRewards","outputs":[{"components":[{"components":[{"internalType":"address","name":"rewardTokenAddress","type":"address"},{"internalType":"string","name":"rewardTokenSymbol","type":"string"},{"internalType":"uint8","name":"rewardTokenDecimals","type":"uint8"}],"internalType":"struct StakingRewardsHelper.RewardTokenInfo","name":"rewardToken","type":"tuple"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct StakingRewardsHelper.RewardClaimable[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"getUserStaked","outputs":[{"components":[{"internalType":"address","name":"stakingTokenAddress","type":"address"},{"internalType":"uint256","name":"balance","type":"uint256"}],"internalType":"struct StakingRewardsHelper.UserStaked[]","name":"","type":"tuple[]"}],"stateMutability":"view","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"}],"name":"seize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

00000000000000000000000074aedaf5e354100b9aba55dd74865d6755db7d2c

-----Decoded View---------------
Arg [0] : _factory (address): 0x74AeDAF5E354100B9ABa55dD74865d6755dB7D2C

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000074aedaf5e354100b9aba55dd74865d6755db7d2c


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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.