Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract ERC223Interface
•    - function balanceOf(address who)
•    - function transfer(address to, uint va ...
•    - function transfer(address to, uint va ...
•  contract ERC223ReceivingContract
•    - function tokenFallback(address _from, ...
•  contract Ownable
•    - function Ownable()
•    - function transferOwnership(address ne ...
• library SafeMath
•    - function mul(uint256 a, uint256 b)
•    - function div(uint256 a, uint256 b)
•    - function sub(uint256 a, uint256 b)
•    - function add(uint256 a, uint256 b)
•  contract AirDrop is Ownable *
•    - function tokenFallback(address _from, ...
•    - function isValidAirDropForAll()
•    - function isValidAirDropForIndividual( ...
•    - function receiveAirDrop()
•    - function toggle()
•    - function withdraw(address _address)
•    - function getTotalNumberOfAddressesRec ...
•    - function getRemainingToken()
•    - function getTotalAirDroppedAmount()

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-11-28
*/

pragma solidity ^0.4.23;

contract ERC223Interface {
    uint public totalSupply;
    uint8 public decimals;
    function balanceOf(address who) constant returns (uint);
    function transfer(address to, uint value);
    function transfer(address to, uint value, bytes data);
    event Transfer(address indexed from, address indexed to, uint value, bytes data);
}

contract ERC223ReceivingContract {

    /**
     * @dev Standard ERC223 function that will handle incoming token transfers.
     *
     * @param _from  Token sender address.
     * @param _value Amount of tokens.
     * @param _data  Transaction metadata.
     */
    function tokenFallback(address _from, uint _value, bytes _data);
}


/**
 * @title Ownable
 * @dev The Ownable contract has an owner address, and provides basic authorization control
 * functions, this simplifies the implementation of "user permissions".
 */
contract Ownable {
  address public owner;


  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);


  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  function Ownable() public {
    owner = msg.sender;
  }

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

  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to.
   */
  function transferOwnership(address newOwner) public onlyOwner {
    require(newOwner != address(0));
    emit OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

}



/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    if (a == 0) {
      return 0;
    }
    c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    // uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return a / b;
  }

  /**
  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}


/**
 * @title AirDropContract
 * Simply do the airdrop.
 */
contract AirDrop is Ownable {
    using SafeMath for uint256;

    // the amount that owner wants to send each time
    uint public airDropAmount;

    // the mapping to judge whether each address has already received airDropped
    mapping ( address => bool ) public invalidAirDrop;

    // the array of addresses which received airDrop
    address[] public arrayAirDropReceivers;

    // flag to stop airdrop
    bool public stop = false;

    ERC223Interface public erc20;

    uint256 public startTime;
    uint256 public endTime;

    // event
    event LogAirDrop(address indexed receiver, uint amount);
    event LogStop();
    event LogStart();
    event LogWithdrawal(address indexed receiver, uint amount);

    /**
    * @dev Constructor to set _airDropAmount and _tokenAddresss.
    * @param _airDropAmount The amount of token that is sent for doing airDrop.
    * @param _tokenAddress The address of token.
    */
    constructor(uint256 _startTime, uint256 _endTime, uint _airDropAmount, address _tokenAddress) public {
        require(_startTime >= now &&
            _endTime >= _startTime &&
            _airDropAmount > 0 &&
            _tokenAddress != address(0)
        );
        startTime = _startTime;
        endTime = _endTime;
        erc20 = ERC223Interface(_tokenAddress);
        uint tokenDecimals = erc20.decimals();
        airDropAmount = _airDropAmount.mul(10 ** tokenDecimals);
    }

    /**
     * @dev Standard ERC223 function that will handle incoming token transfers.
     *
     * @param _from  Token sender address.
     * @param _value Amount of tokens.
     * @param _data  Transaction metadata.
     */
    function tokenFallback(address _from, uint _value, bytes _data) {}

    /**
    * @dev Confirm that airDrop is available.
    * @return A bool to confirm that airDrop is available.
    */
    function isValidAirDropForAll() public view returns (bool) {
        bool validNotStop = !stop;
        bool validAmount = getRemainingToken() >= airDropAmount;
        bool validPeriod = now >= startTime && now <= endTime;
        return validNotStop && validAmount && validPeriod;
    }

    /**
    * @dev Confirm that airDrop is available for msg.sender.
    * @return A bool to confirm that airDrop is available for msg.sender.
    */
    function isValidAirDropForIndividual() public view returns (bool) {
        bool validNotStop = !stop;
        bool validAmount = getRemainingToken() >= airDropAmount;
        bool validPeriod = now >= startTime && now <= endTime;
        bool validReceiveAirDropForIndividual = !invalidAirDrop[msg.sender];
        return validNotStop && validAmount && validPeriod && validReceiveAirDropForIndividual;
    }

    /**
    * @dev Do the airDrop to msg.sender
    */
    function receiveAirDrop() public {
        require(isValidAirDropForIndividual());

        // set invalidAirDrop of msg.sender to true
        invalidAirDrop[msg.sender] = true;

        // set msg.sender to the array of the airDropReceiver
        arrayAirDropReceivers.push(msg.sender);

        // execute transferFrom
        erc20.transfer(msg.sender, airDropAmount);

        emit LogAirDrop(msg.sender, airDropAmount);
    }

    /**
    * @dev Change the state of stop flag
    */
    function toggle() public onlyOwner {
        stop = !stop;

        if (stop) {
            emit LogStop();
        } else {
            emit LogStart();
        }
    }

    /**
    * @dev Withdraw the amount of token that is remaining in this contract.
    * @param _address The address of EOA that can receive token from this contract.
    */
    function withdraw(address _address) public onlyOwner {
        require(stop || now > endTime);
        require(_address != address(0));
        uint tokenBalanceOfContract = getRemainingToken();
        erc20.transfer(_address, tokenBalanceOfContract);
        emit LogWithdrawal(_address, tokenBalanceOfContract);
    }

    /**
    * @dev Get the total number of addresses which received airDrop.
    * @return Uint256 the total number of addresses which received airDrop.
    */
    function getTotalNumberOfAddressesReceivedAirDrop() public view returns (uint256) {
        return arrayAirDropReceivers.length;
    }

    /**
    * @dev Get the remaining amount of token user can receive.
    * @return Uint256 the amount of token that user can reveive.
    */
    function getRemainingToken() public view returns (uint256) {
        return erc20.balanceOf(this);
    }

    /**
    * @dev Return the total amount of token user received.
    * @return Uint256 total amount of token user received.
    */
    function getTotalAirDroppedAmount() public view returns (uint256) {
        return airDropAmount.mul(arrayAirDropReceivers.length);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"stop","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"airDropAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"endTime","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getRemainingToken","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"arrayAirDropReceivers","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getTotalAirDroppedAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"toggle","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_address","type":"address"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"invalidAirDrop","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isValidAirDropForIndividual","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"erc20","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"startTime","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isValidAirDropForAll","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_value","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"tokenFallback","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"receiveAirDrop","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getTotalNumberOfAddressesReceivedAirDrop","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_startTime","type":"uint256"},{"name":"_endTime","type":"uint256"},{"name":"_airDropAmount","type":"uint256"},{"name":"_tokenAddress","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"receiver","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"LogAirDrop","type":"event"},{"anonymous":false,"inputs":[],"name":"LogStop","type":"event"},{"anonymous":false,"inputs":[],"name":"LogStart","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"receiver","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"LogWithdrawal","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"}]

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

bzzr://8768347e34f9c77a5a88ee472707a1362760098e8343f2c90d5dee786b5767b1