retn-withdraw.sol

pragma solidity ^0.4.18;

/**
 * @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 _from, address indexed _to);

  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  function Ownable() public{
    owner = msg.sender;
    OwnershipTransferred(address(0), owner);
  }

  /**
   * @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));
    owner = newOwner;
    OwnershipTransferred(owner,newOwner);
  }
}

/**
 * @title Token
 * @dev API interface for interacting with the Token contract 
 */
interface Token {
  function transfer(address _to, uint256 _value) external returns (bool);
  function balanceOf(address _owner) constant external returns (uint256 balance);
}

contract RetnWithDraw is Ownable {

  Token token;
  mapping(address => uint256) public redeemBalanceOf;
  event BalanceSet(address indexed beneficiary, uint256 value);
  event BalanceCleared(address indexed beneficiary, uint256 value);
  event Redeemed(address indexed beneficiary, uint256 value);
  event TokenSent(address indexed beneficiary, uint256 value);

  function RetnWithDraw() public {
      address _tokenAddr = 0x2ADd07C4d319a1211Ed6362D8D0fBE5EF56b65F6; 
      // test token 0x815CfC2701C1d072F2fb7E8bDBe692dEEefFfe41;
      token = Token(_tokenAddr);
  }
  
  function availableTokens() constant external returns (uint256)  {
      return token.balanceOf(this);
  }
  
  function setBalances(address[] dests, uint256[] values) onlyOwner external {
    uint256 i = 0; 
    while (i < dests.length){
        if(dests[i] != address(0)) 
        {
            uint256 toSend = values[i];// * 10**18;
            redeemBalanceOf[dests[i]] += toSend;
            BalanceSet(dests[i],values[i]);
        }
        i++;
    }
  }
  
  function redeem(uint256 quantity) external{
      //uint256 baseUnits = quantity * 10**18;//receiving the parameter in wei now
      uint256 senderEligibility = redeemBalanceOf[msg.sender];
      uint256 tokensAvailable = token.balanceOf(this);
      require(senderEligibility >= quantity);
      require( tokensAvailable >= quantity);
      if(token.transfer(msg.sender,quantity)){
        redeemBalanceOf[msg.sender] -= quantity;
        Redeemed(msg.sender,quantity);
      }
  }
  
  function removeBalances(address[] dests, uint256[] values) onlyOwner external {
    uint256 i = 0; 
    while (i < dests.length){
        if(dests[i] != address(0)) 
        {
            uint256 toRevoke = values[i];// * 10**18;
            if(redeemBalanceOf[dests[i]]>=toRevoke)
            {
                redeemBalanceOf[dests[i]] -= toRevoke;
                BalanceCleared(dests[i],values[i]);
            }
        }
        i++;
    }
  }
  
  function sendTokensToMany(address[] dests, uint256[] values) onlyOwner external {
    uint256 i = 0; 
    while (i < dests.length){
        if(dests[i] != address(0)) 
        {
            uint256 toSend = values[i] ;//* 10**18;
            if(token.balanceOf(this) >= toSend){
                if(redeemBalanceOf[dests[i]] >= toSend) {
                    if(token.transfer(dests[i], toSend)) {
                        redeemBalanceOf[dests[i]] -= toSend;
                        TokenSent(dests[i],values[i]);
                    }  
                }
            }
        }
        i++;
    }
  }

}