Contract 0x4ce6916beb68...638edfd3176f

{
  "language": "Solidity",
  "sources": {
    "LockToken.sol": {
      "content": "pragma solidity ^0.4.24;\r\n\r\n/**\r\n* @title SafeMath\r\n* @dev Math operations with safety checks that throw on error\r\n*/\r\nlibrary SafeMath {\r\n  function mul(uint256 a, uint256 b) internal pure returns (uint256) {\r\n    uint256 c = a * b;\r\n    assert(a == 0 || c / a == b);\r\n    return c;\r\n  }\r\n  function div(uint256 a, uint256 b) internal pure returns (uint256) {\r\n    // assert(b > 0); // Solidity automatically throws when dividing by 0\r\n    uint256 c = a / b;\r\n    // assert(a == b * c + a % b); // There is no case in which this doesn't hold\r\n    return c;\r\n  }\r\n  function sub(uint256 a, uint256 b) internal pure returns (uint256) {\r\n    assert(b <= a);\r\n    return a - b;\r\n  }\r\n  function add(uint256 a, uint256 b) internal pure returns (uint256) {\r\n    uint256 c = a + b;\r\n    assert(c >= a);\r\n    return c;\r\n  }\r\n}\r\n\r\ncontract token {\r\n\r\n  function balanceOf(address _owner) public constant returns (uint256 balance);\r\n  function transfer(address _to, uint256 _value) public returns (bool success);\r\n\r\n}\r\n\r\ncontract Ownable {\r\n  address public owner;\r\n  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\r\n  /**\r\n   * @dev The Ownable constructor sets the original `owner` of the contract to the sender\r\n   * account.\r\n   */\r\n  constructor() public{\r\n    owner = msg.sender;\r\n  }\r\n  /**\r\n   * @dev Throws if called by any account other than the owner.\r\n   */\r\n  modifier onlyOwner() {\r\n    require(msg.sender == owner);\r\n    _;\r\n  }\r\n  /**\r\n   * @dev Allows the current owner to transfer control of the contract to a newOwner.\r\n   * @param newOwner The address to transfer ownership to.\r\n   */\r\n  function transferOwnership(address newOwner) onlyOwner public {\r\n    require(newOwner != address(0));\r\n    emit OwnershipTransferred(owner, newOwner);\r\n    owner = newOwner;\r\n  }\r\n}\r\n\r\ncontract LockToken is Ownable {\r\n    using SafeMath for uint256;\r\n\r\n  token token_reward;\r\n  address public beneficiary;\r\n  bool public isLocked = false;\r\n  bool public isReleased = false;\r\n  uint256 public start_time;\r\n  uint256 public end_time;\r\n  \r\n  event TokenReleased(address beneficiary, uint256 token_amount);\r\n\r\n  constructor(address tokenContractAddress, address _beneficiary) public{\r\n    token_reward = token(tokenContractAddress);\r\n    beneficiary = _beneficiary;\r\n  }\r\n\r\n  function tokenBalance() constant public returns (uint256){\r\n    return token_reward.balanceOf(this);\r\n  }\r\n\r\n  function lock(uint256 lockTime) public onlyOwner returns (bool){\r\n      require(!isLocked);\r\n      require(tokenBalance() > 0);\r\n      start_time = now;\r\n      end_time = lockTime;\r\n      isLocked = true;\r\n  }\r\n\r\n  function lockOver() constant public returns (bool){\r\n      uint256 current_time = now;\r\n    return current_time > end_time;\r\n  }\r\n\r\n    function release() onlyOwner public{\r\n    require(isLocked);\r\n    require(!isReleased);\r\n    require(lockOver());\r\n    uint256 token_amount = tokenBalance();\r\n    token_reward.transfer( beneficiary, token_amount);\r\n    emit TokenReleased(beneficiary, token_amount);\r\n    isReleased = true;\r\n  }\r\n}"
    }
  },
  "settings": {
    "compilationTarget": {
      "LockToken.sol": "LockToken"
    },
    "evmVersion": "byzantium",
    "libraries": {},
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "remappings": []
  }
}