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 ^0.7.0;
pragma experimental ABIEncoderV2;

import "./Whitelist.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";

contract Airdrop is Ownable {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;

    IERC20 token;
    Whitelist whitelist;
    mapping(address => uint) public claimed;
    uint256 public airdropAmount;

    event SetAmount(uint256 newAmount);
    event AirdropClaimed(address recipient, uint256 amount);
    event TokensWithdrawn(uint256 withdrawAmount);

    constructor(IERC20 _token, Whitelist _whitelist, uint256 _airdropAmount) {
        token = _token;
        whitelist = _whitelist;
        airdropAmount = _airdropAmount;
    }

    /**
     * @dev Allows owner to change the airdrop amount
     * @param _newAmount — new airdrop amount
     */
    function setAmount(uint256 _newAmount)
        external
        onlyOwner
    {
        airdropAmount = _newAmount;
        emit SetAmount(_newAmount);
    }

    /**
     * @dev withdraws tokens from the contract. Only owner can withdraw.
     * @param _amount — amount of tokens to withdraw
     */
    function withdrawTokens(uint256 _amount)
        external
        onlyOwner
    {
        token.safeTransfer(msg.sender, _amount);
        emit TokensWithdrawn(_amount);
    }

    /**
     * @dev Allows a whitelisted address to claim airdrop
     */
    function claim() 
        external
    {
        require(claimed[msg.sender] < airdropAmount, "Airdrop::claim:: sender already claimed airdrop");
        require(whitelist.isWhitelisted(msg.sender), "Airdrop::claim:: address is not whitelisted");
        uint tokensToClaim = airdropAmount.sub(claimed[msg.sender]);
        claimed[msg.sender] = airdropAmount;
        token.safeTransfer(msg.sender, tokensToClaim);
        emit AirdropClaimed(msg.sender, tokensToClaim);
    }

    /**
     * @dev calculates remaining airdrops left according to current token balance and airdrop size
     */
    function airdropsLeft()
        external 
        view
        returns (uint256)
    {
        return(token.balanceOf(address(this)).div(airdropAmount));   
    }
}

// Whitelist.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;

import "@openzeppelin/contracts/access/AccessControl.sol";

/*
 * Implements Whitelisting pattern using OpenZeppelin AccessRole
 */
contract Whitelist is AccessControl {
    bytes32 public constant WHITELIST_ADMIN = keccak256("WHITELIST_ADMIN");
    bytes32 public constant WHITELISTED = keccak256("WHITELISTED");

    constructor() {
        _setRoleAdmin(WHITELIST_ADMIN, WHITELIST_ADMIN);
        _setRoleAdmin(WHITELISTED, WHITELIST_ADMIN);
        _setupRole(WHITELIST_ADMIN, msg.sender);
    }

    modifier onlyWhitelistAdmin {
        require(hasRole(WHITELIST_ADMIN, msg.sender), "Caller is not a whitelist admin");
        _;
    }

    modifier onlyWhitelisted {
        require(hasRole(WHITELISTED, msg.sender), "Caller is not a whitelisted");
        _;
    }

    function addWhitelistAdmin(address account)
        onlyWhitelistAdmin
        external
    {
        grantRole(WHITELIST_ADMIN, account);
    }

    function removeWhitelistAdmin(address account) 
        onlyWhitelistAdmin
        external 
    {
        revokeRole(WHITELIST_ADMIN, account);
    }

    function addWhitelisted(address account) 
        onlyWhitelistAdmin 
        external 
    {
        grantRole(WHITELISTED, account);
    }

    function removeWhitelisted(address account) 
        onlyWhitelistAdmin
        external 
    {
        revokeRole(WHITELISTED, account);
    }

    function isWhitelisted(address account)
        external
        view
        returns (bool)
    {
        return hasRole(WHITELISTED, account);
    }

    function isWhitelistAdmin(address account)
        external
        view
        returns (bool)
    {
        return hasRole(WHITELIST_ADMIN, account);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/*
 * @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 GSN 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 payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "../utils/EnumerableSet.sol";
import "../utils/Address.sol";
import "../GSN/Context.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context {
    using EnumerableSet for EnumerableSet.AddressSet;
    using Address for address;

    struct RoleData {
        EnumerableSet.AddressSet members;
        bytes32 adminRole;
    }

    mapping (bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view returns (bool) {
        return _roles[role].members.contains(account);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view returns (uint256) {
        return _roles[role].members.length();
    }

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
        return _roles[role].members.at(index);
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual {
        require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant");

        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual {
        require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke");

        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);
        _roles[role].adminRole = adminRole;
    }

    function _grantRole(bytes32 role, address account) private {
        if (_roles[role].members.add(account)) {
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (_roles[role].members.remove(account)) {
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "../GSN/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 () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view 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 {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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 ^0.7.0;

import "./IERC20.sol";
import "../../math/SafeMath.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 SafeMath for uint256;
    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'
        // solhint-disable-next-line max-line-length
        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).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        _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
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @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");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256`
 * (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;

        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) { // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(value)));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint256(_at(set._inner, index)));
    }


    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

{
  "remappings": [],
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {
    "": {}
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"contract Whitelist","name":"_whitelist","type":"address"},{"internalType":"uint256","name":"_airdropAmount","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"AirdropClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newAmount","type":"uint256"}],"name":"SetAmount","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"withdrawAmount","type":"uint256"}],"name":"TokensWithdrawn","type":"event"},{"inputs":[],"name":"airdropAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"airdropsLeft","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"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":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newAmount","type":"uint256"}],"name":"setAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawTokens","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0000000000000000000000004cc19356f2d37338b9802aa8e8fc58b0373296e7000000000000000000000000c3faa8e87cd7b3678fa10c0f9638eb4ba7da20c500000000000000000000000000000000000000000000043c33c1937564800000

-----Decoded View---------------
Arg [0] : _token (address): 0x4CC19356f2D37338b9802aa8E8fc58B0373296E7
Arg [1] : _whitelist (address): 0xc3faa8e87cD7b3678FA10C0F9638Eb4BA7DA20C5
Arg [2] : _airdropAmount (uint256): 20000000000000000000000

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000004cc19356f2d37338b9802aa8e8fc58b0373296e7
Arg [1] : 000000000000000000000000c3faa8e87cd7b3678fa10c0f9638eb4ba7da20c5
Arg [2] : 00000000000000000000000000000000000000000000043c33c1937564800000