Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./dependencies/openzeppelin/utils/math/Math.sol";
import "./utils/RecurringAirdrop.sol";
import "./interfaces/external/IESMET.sol";

/**
 * @title MET Airdrop contract
 */
contract MetAirdrop is RecurringAirdrop {
    using SafeERC20 for IERC20;
    using Math for uint256;

    IESMET public constant ESMET = IESMET(0xA28D70795a61Dc925D4c220762A4344803876bb8);
    IERC20 public constant MET = IERC20(0x2Ebd53d035150f328bd754D6DC66B99B0eDB89aa);

    /// @notice For how long `MET` tokens will be locked
    uint256 public lockPeriod = 7 days;

    constructor() RecurringAirdrop(MET) {}

    /**
     * @inheritdoc RecurringAirdrop
     * @dev Locks the `MET` into `esMET` on user's behalf.
     * The `lockPeriod` starts from the current merkle root update (i.e. `updatedAt`)
     */
    function _transferReward(address to_, uint256 amount_) internal override {
        uint256 _end = updatedAt + lockPeriod;

        if (_end < block.timestamp) {
            MET.safeTransfer(to_, amount_);
            return;
        }

        uint256 _min = ESMET.MINIMUM_LOCK_PERIOD() + 1;
        uint256 _max = ESMET.MAXIMUM_LOCK_PERIOD();

        // Ensures valid lock period
        uint256 _remainLockPeriod = Math.min(Math.max(_end - block.timestamp, _min), _max);

        token.safeApprove(address(ESMET), 0);
        token.safeApprove(address(ESMET), amount_);
        ESMET.lockFor(to_, amount_, _remainLockPeriod);
    }

    /**
     * @notice Update esMET lock period
     * @param lockPeriod_ The new value
     */
    function updateLockPeriod(uint256 lockPeriod_) public onlyGovernor {
        lockPeriod = lockPeriod_;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin-upgradeable/proxy/utils/Initializable.sol";
import "../utils/TokenHolder.sol";
import "../interfaces/IGovernable.sol";

error SenderIsNotGovernor();
error ProposedGovernorIsNull();
error SenderIsNotTheProposedGovernor();

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (governor) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the governor account will be the one that deploys the contract. This
 * can later be changed with {transferGovernorship}.
 *
 */
abstract contract Governable is IGovernable, TokenHolder, Initializable {
    /**
     * @notice The governor
     * @dev By default the contract deployer is the initial governor
     */
    address public governor;

    /**
     * @notice The proposed governor
     * @dev It will be empty (address(0)) if there isn't a proposed governor
     */
    address public proposedGovernor;

    event UpdatedGovernor(address indexed previousGovernor, address indexed proposedGovernor);

    constructor() {
        governor = msg.sender;
        emit UpdatedGovernor(address(0), msg.sender);
    }

    /**
     * @dev If inheriting child is using proxy then child contract can use
     * __Governable_init() function to initialization this contract
     */
    // solhint-disable-next-line func-name-mixedcase
    function __Governable_init() internal onlyInitializing {
        governor = msg.sender;
        emit UpdatedGovernor(address(0), msg.sender);
    }

    /**
     * @dev Throws if called by any account other than the governor.
     */
    modifier onlyGovernor() {
        if (governor != msg.sender) revert SenderIsNotGovernor();
        _;
    }

    /// @inheritdoc TokenHolder
    // solhint-disable-next-line no-empty-blocks
    function _requireCanSweep() internal view override onlyGovernor {}

    /**
     * @notice Transfers governorship of the contract to a new account (`proposedGovernor`).
     * @dev Can only be called by the current owner.
     * @param proposedGovernor_ The new proposed governor
     */
    function transferGovernorship(address proposedGovernor_) external onlyGovernor {
        if (proposedGovernor_ == address(0)) revert ProposedGovernorIsNull();
        proposedGovernor = proposedGovernor_;
    }

    /**
     * @notice Allows new governor to accept governorship of the contract.
     */
    function acceptGovernorship() external {
        address _proposedGovernor = proposedGovernor;
        if (msg.sender != _proposedGovernor) revert SenderIsNotTheProposedGovernor();
        emit UpdatedGovernor(governor, _proposedGovernor);
        governor = _proposedGovernor;
        proposedGovernor = address(0);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = _setInitializedVersion(1);
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        bool isTopLevelCall = _setInitializedVersion(version);
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(version);
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        _setInitializedVersion(type(uint8).max);
    }

    function _setInitializedVersion(uint8 version) private returns (bool) {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, and for the lowest level
        // of initializers, because in other contexts the contract may have been reentered.
        if (_initializing) {
            require(
                version == 1 && !AddressUpgradeable.isContract(address(this)),
                "Initializable: contract is already initialized"
            );
            return false;
        } else {
            require(_initialized < version, "Initializable: contract is already initialized");
            _initialized = version;
            return true;
        }
    }
}

// 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 AddressUpgradeable {
    /**
     * @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 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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @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;

    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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _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 ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT

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");
        }
    }
}

// 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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        bytes32 computedHash = leaf;

        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];

            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
            }
        }

        // Check if the computed hash (root) is equal to the provided root
        return computedHash == root;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a / b + (a % b == 0 ? 0 : 1);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

/**
 * @notice Governable interface
 */
interface IGovernable {
    function governor() external view returns (address _governor);

    function transferGovernorship(address _proposedGovernor) external;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../../dependencies/openzeppelin/token/ERC20/IERC20.sol";

interface IESMET is IERC20 {
    struct LockPosition {
        uint256 lockedAmount; // MET locked
        uint256 boostedAmount; // based on the `lockPeriod`
        uint256 unlockTime; // now + `lockPeriod`
    }

    function positions(uint256) external view returns (LockPosition memory);

    function MINIMUM_LOCK_PERIOD() external view returns (uint256);

    function MAXIMUM_LOCK_PERIOD() external view returns (uint256);

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

    function lock(uint256 amount_, uint256 lockPeriod_) external;

    function lockFor(address to_, uint256 amount_, uint256 lockPeriod_) external;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/utils/SafeERC20.sol";
import "../dependencies/openzeppelin/security/ReentrancyGuard.sol";
import "../dependencies/openzeppelin/utils/cryptography/MerkleProof.sol";
import "../access/Governable.sol";

error NothingToClaim();
error InvalidProof();
error NewMerkleRootSameAsCurrent();
error ProofsFileIsNull();

/**
 * @title Generic Recurring Airdrop contract
 */
contract RecurringAirdrop is ReentrancyGuard, Governable {
    using SafeERC20 for IERC20;

    /// @notice The token to distribute
    IERC20 public immutable token;

    /// @notice The merkle root for the current distribution
    bytes32 public merkleRoot;

    /// @notice The proofs file's IPFS hash
    bytes32 public proofsFileHash;

    /// @notice The timestamp of the latest merkle root update
    uint256 public updatedAt;

    /// @notice The Accumulated amount claimed for a given account
    mapping(address => uint256) public claimed;

    /// @notice Emitted when an account claims reward
    event RewardClaimed(address indexed to, uint256 amount);

    /// @notice Emitted when the merkle root is updated
    event MerkleRootUpdated(bytes32 merkleRoot, uint256 createdAt);

    constructor(IERC20 token_) {
        token = token_;
    }

    /**
     * @notice Claim reward
     * @dev Every tree leaf is a `[account, amount]` tuple, we assume that the `msg.sender` is the account
     * @param amount_ The amount to claim
     * @param proof_ The merkle tree proof for the given leaf
     */
    function claim(uint256 amount_, bytes32[] calldata proof_) external nonReentrant {
        if (merkleRoot == bytes32(0)) revert NothingToClaim();

        bytes32 _leaf = keccak256(abi.encodePacked(msg.sender, amount_));
        if (!MerkleProof.verify(proof_, merkleRoot, _leaf)) revert InvalidProof();

        uint256 _claimable = amount_ - claimed[msg.sender];
        if (_claimable == 0) revert NothingToClaim();

        claimed[msg.sender] += _claimable;

        _transferReward(msg.sender, _claimable);

        emit RewardClaimed(msg.sender, _claimable);
    }

    /**
     * @notice Transfer reward to the user
     * @param to_ The claim account
     * @param amount_ The reward amount
     */
    function _transferReward(address to_, uint256 amount_) internal virtual {
        token.safeTransfer(to_, amount_);
    }

    /**
     * @notice Update merkle tree root
     * @param merkleRoot_ The merkle root
     */
    function updateMerkleRoot(bytes32 merkleRoot_, bytes32 proofsFileHash_) external onlyGovernor {
        if (merkleRoot_ == merkleRoot) revert NewMerkleRootSameAsCurrent();
        if (proofsFileHash_ == bytes32(0)) revert ProofsFileIsNull();

        merkleRoot = merkleRoot_;
        updatedAt = block.timestamp;
        proofsFileHash = proofsFileHash_;

        emit MerkleRootUpdated(merkleRoot_, block.timestamp);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/utils/SafeERC20.sol";

error FallbackIsNotAllowed();
error ReceiveIsNotAllowed();

/**
 * @title Utils contract that handles tokens sent to it
 */
abstract contract TokenHolder {
    using SafeERC20 for IERC20;

    /**
     * @dev Revert fallback calls
     */
    fallback() external payable {
        revert FallbackIsNotAllowed();
    }

    /**
     * @dev Revert when receiving by default
     */
    receive() external payable virtual {
        revert ReceiveIsNotAllowed();
    }

    /**
     * @notice ERC20 recovery in case of stuck tokens due direct transfers to the contract address.
     * @param token_ The token to transfer
     * @param to_ The recipient of the transfer
     * @param amount_ The amount to send
     */
    function sweep(IERC20 token_, address to_, uint256 amount_) external {
        _requireCanSweep();

        if (address(token_) == address(0)) {
            Address.sendValue(payable(to_), amount_);
        } else {
            token_.safeTransfer(to_, amount_);
        }
    }

    /**
     * @notice Function that reverts if the caller isn't allowed to sweep tokens
     * @dev Usually requires the owner or governor as the caller
     */
    function _requireCanSweep() internal view virtual;
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"FallbackIsNotAllowed","type":"error"},{"inputs":[],"name":"InvalidProof","type":"error"},{"inputs":[],"name":"NewMerkleRootSameAsCurrent","type":"error"},{"inputs":[],"name":"NothingToClaim","type":"error"},{"inputs":[],"name":"ProofsFileIsNull","type":"error"},{"inputs":[],"name":"ProposedGovernorIsNull","type":"error"},{"inputs":[],"name":"ReceiveIsNotAllowed","type":"error"},{"inputs":[],"name":"SenderIsNotGovernor","type":"error"},{"inputs":[],"name":"SenderIsNotTheProposedGovernor","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"merkleRoot","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"createdAt","type":"uint256"}],"name":"MerkleRootUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"RewardClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousGovernor","type":"address"},{"indexed":true,"internalType":"address","name":"proposedGovernor","type":"address"}],"name":"UpdatedGovernor","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"ESMET","outputs":[{"internalType":"contract IESMET","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MET","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"acceptGovernorship","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount_","type":"uint256"},{"internalType":"bytes32[]","name":"proof_","type":"bytes32[]"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"governor","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockPeriod","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proofsFileHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"proposedGovernor","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token_","type":"address"},{"internalType":"address","name":"to_","type":"address"},{"internalType":"uint256","name":"amount_","type":"uint256"}],"name":"sweep","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"proposedGovernor_","type":"address"}],"name":"transferGovernorship","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"lockPeriod_","type":"uint256"}],"name":"updateLockPeriod","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"merkleRoot_","type":"bytes32"},{"internalType":"bytes32","name":"proofsFileHash_","type":"bytes32"}],"name":"updateMerkleRoot","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"updatedAt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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