oracles-presale/contracts/PresaleOracles.sol

114 lines
3.9 KiB
Solidity

import "zeppelin-solidity/contracts/math/SafeMath.sol";
import "zeppelin-solidity/contracts/token/ERC20Basic.sol";
import "zeppelin-solidity/contracts/ownership/Claimable.sol";
pragma solidity ^0.4.18;
contract PresaleOracles is Claimable {
/*
* PresaleOracles
* Simple Presale contract
* built by github.com/rstormsf Roman Storm
*/
using SafeMath for uint256;
uint256 public startTime;
uint256 public endTime;
uint256 public cap;
uint256 public totalInvestedInWei;
uint256 public minimumContribution;
mapping(address => uint256) public investorBalances;
mapping(address => bool) public whitelist;
uint256 public investorsLength;
address public vault;
bool public isInitialized = false;
// TESTED by Roman Storm
function () public payable {
buy();
}
//TESTED by Roman Storm
function Presale() public {
}
//TESTED by Roman Storm
function initialize(uint256 _startTime, uint256 _endTime, uint256 _cap, uint256 _minimumContribution, address _vault) public onlyOwner {
require(!isInitialized);
require(_startTime != 0);
require(_endTime != 0);
require(_endTime > _startTime);
require(_cap != 0);
require(_minimumContribution != 0);
require(_vault != 0x0);
require(_cap > _minimumContribution);
startTime = _startTime;
endTime = _endTime;
cap = _cap;
isInitialized = true;
minimumContribution = _minimumContribution;
vault = _vault;
}
//TESTED by Roman Storm
event Contribution(address indexed investor, uint256 investorAmount, uint256 investorTotal, uint256 totalAmount);
function buy() public payable {
require(whitelist[msg.sender]);
require(isValidPurchase(msg.value));
require(isInitialized);
require(getTime() >= startTime && getTime() <= endTime);
address investor = msg.sender;
investorBalances[investor] += msg.value;
totalInvestedInWei += msg.value;
forwardFunds(msg.value);
Contribution(msg.sender, msg.value, investorBalances[investor], totalInvestedInWei);
}
//TESTED by Roman Storm
function forwardFunds(uint256 _amount) internal {
vault.transfer(_amount);
}
//TESTED by Roman Storm
function claimTokens(address _token) public onlyOwner {
if (_token == 0x0) {
owner.transfer(this.balance);
return;
}
ERC20Basic token = ERC20Basic(_token);
uint256 balance = token.balanceOf(this);
token.transfer(owner, balance);
}
function getTime() internal view returns(uint256) {
return now;
}
//TESTED by Roman Storm
function isValidPurchase(uint256 _amount) public view returns(bool) {
bool nonZero = _amount > 0;
bool hasMinimumAmount = investorBalances[msg.sender].add(_amount) >= minimumContribution;
bool withinCap = totalInvestedInWei.add(_amount) <= cap;
return hasMinimumAmount && withinCap && nonZero;
}
//TESTED by Roman Storm
function whitelistInvestor(address _newInvestor) public onlyOwner {
if(!whitelist[_newInvestor]) {
whitelist[_newInvestor] = true;
investorsLength++;
}
}
//TESTED by Roman Storm
function whitelistInvestors(address[] _investors) external onlyOwner {
require(_investors.length <= 250);
for(uint8 i=0; i<_investors.length;i++) {
address newInvestor = _investors[i];
if(!whitelist[newInvestor]) {
whitelist[newInvestor] = true;
investorsLength++;
}
}
}
function blacklistInvestor(address _investor) public onlyOwner {
if(whitelist[_investor]) {
delete whitelist[_investor];
if(investorsLength != 0) {
investorsLength--;
}
}
}
}