LockFunds

LockFunds.sol

pragma solidity ^0.4.13;

/**
 * @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;

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

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

  /**
   * @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) onlyOwner {
    if (newOwner != address(0)) {
      owner = newOwner;
    }
  }
}

/**
 * @title LockFunds
 * @dev The LockFunds contract is used to store tokens and eth for a fixed amount of time 
 * ABI: [{"constant":false,"inputs":[],"name":"kill","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"expiration","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"}],"name":"redeemToken","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"fund","outputs":[{"name":"success","type":"bool"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_days","type":"uint256"}],"name":"lock","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"}]
 */
 contract LockFunds is Ownable {
    uint public expiration; // Timestamp in # of seconds.

    function () payable {}

    // Only allow the lock to be extended and set to a date > 6 months ahead
    function lock(uint _days) onlyOwner returns (bool) {
		if (now + (_days * 1 days) < expiration) { 
			return false;
		}
        expiration = now + (_days * 1 minutes);
        return true;
    }   

	function fund() payable returns (bool success) {
		return true;
	}

    function redeemToken(address addr) onlyOwner {
        if (now > expiration) {
			ERC20Basic token = ERC20Basic(addr);
			uint256 balance = token.balanceOf(this);
			if (balance > 0) {
    			token.transfer(owner, balance);
			}
        }   
    }   

    function kill() onlyOwner {
        if (now > expiration) {
            suicide(owner);
        }   
    }   
}

/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) constant returns (uint);
  function transfer(address to, uint value);
  event Transfer(address indexed from, address indexed to, uint value);
}