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qrp_ico_contract.sol
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qrp_ico_contract.sol
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/*! lk2.sol | (c) 2018 Develop by BelovITLab LLC (smartcontract.ru), author @stupidlovejoy | License: MIT */
pragma solidity 0.4.21;
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns(uint256) {
if(a == 0) {
return 0;
}
uint256 c = a * b;
assert(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns(uint256) {
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns(uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns(uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
modifier onlyOwner() { require(msg.sender == owner); _; }
function Ownable() public {
owner = msg.sender;
}
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0));
owner = newOwner;
OwnershipTransferred(owner, newOwner);
}
}
contract Manageable is Ownable {
address[] public managers;
event ManagerAdded(address indexed manager);
event ManagerRemoved(address indexed manager);
modifier onlyManager() { require(isManager(msg.sender)); _; }
function countManagers() view public returns(uint) {
return managers.length;
}
function getManagers() view public returns(address[]) {
return managers;
}
function isManager(address _manager) view public returns(bool) {
for(uint i = 0; i < managers.length; i++) {
if(managers[i] == _manager) {
return true;
}
}
return false;
}
function addManager(address _manager) onlyOwner public {
require(_manager != address(0));
require(!isManager(_manager));
managers.push(_manager);
ManagerAdded(_manager);
}
function removeManager(address _manager) onlyOwner public {
require(isManager(_manager));
uint index = 0;
for(uint i = 0; i < managers.length; i++) {
if(managers[i] == _manager) {
index = i;
}
}
for(; index < managers.length - 1; index++) {
managers[index] = managers[index + 1];
}
managers.length--;
ManagerRemoved(_manager);
}
}
contract Withdrawable is Ownable {
function withdrawEther(address _to, uint _value) onlyOwner public returns(bool) {
require(_to != address(0));
require(this.balance >= _value);
_to.transfer(_value);
return true;
}
function withdrawTokens(ERC20 _token, address _to, uint _value) onlyOwner public returns(bool) {
require(_to != address(0));
return _token.transfer(_to, _value);
}
}
contract Pausable is Ownable {
bool public paused = false;
event Pause();
event Unpause();
modifier whenNotPaused() { require(!paused); _; }
modifier whenPaused() { require(paused); _; }
function pause() onlyOwner whenNotPaused public {
paused = true;
Pause();
}
function unpause() onlyOwner whenPaused public {
paused = false;
Unpause();
}
}
contract ERC20 {
uint256 public totalSupply;
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function balanceOf(address who) public view returns(uint256);
function transfer(address to, uint256 value) public returns(bool);
function transferFrom(address from, address to, uint256 value) public returns(bool);
function allowance(address owner, address spender) public view returns(uint256);
function approve(address spender, uint256 value) public returns(bool);
}
contract StandardToken is ERC20 {
using SafeMath for uint256;
string public name;
string public symbol;
uint8 public decimals;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
function StandardToken(string _name, string _symbol, uint8 _decimals) public {
name = _name;
symbol = _symbol;
decimals = _decimals;
}
function balanceOf(address _owner) public view returns(uint256 balance) {
return balances[_owner];
}
function transfer(address _to, uint256 _value) public returns(bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
function multiTransfer(address[] _to, uint256[] _value) public returns(bool) {
require(_to.length == _value.length);
for(uint i = 0; i < _to.length; i++) {
transfer(_to[i], _value[i]);
}
return true;
}
function transferFrom(address _from, address _to, uint256 _value) public returns(bool) {
require(_to != address(0));
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
Transfer(_from, _to, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns(uint256) {
return allowed[_owner][_spender];
}
function approve(address _spender, uint256 _value) public returns(bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function increaseApproval(address _spender, uint _addedValue) public returns(bool) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint _subtractedValue) public returns(bool) {
uint oldValue = allowed[msg.sender][_spender];
if(_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
contract MintableToken is StandardToken, Ownable {
event Mint(address indexed to, uint256 amount);
event MintFinished();
bool public mintingFinished = false;
modifier canMint() { require(!mintingFinished); _; }
function mint(address _to, uint256 _amount) onlyOwner canMint public returns(bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
Transfer(address(0), _to, _amount);
return true;
}
function finishMinting() onlyOwner canMint public returns(bool) {
mintingFinished = true;
MintFinished();
return true;
}
}
contract CappedToken is MintableToken {
uint256 public cap;
function CappedToken(uint256 _cap) public {
require(_cap > 0);
cap = _cap;
}
function mint(address _to, uint256 _amount) onlyOwner canMint public returns(bool) {
require(totalSupply.add(_amount) <= cap);
return super.mint(_to, _amount);
}
}
contract BurnableToken is StandardToken {
event Burn(address indexed burner, uint256 value);
function burn(uint256 _value) public {
require(_value <= balances[msg.sender]);
address burner = msg.sender;
balances[burner] = balances[burner].sub(_value);
totalSupply = totalSupply.sub(_value);
Burn(burner, _value);
}
}
/*
ICO Demo LK ICO
*/
contract Token is CappedToken, BurnableToken, Withdrawable {
using SafeMath for uint;
function Token() CappedToken(100000000 ether) StandardToken("Cryptics ERC20 Token", "QRP", 18) public {
}
}
contract Crowdsale is Manageable, Withdrawable, Pausable {
using SafeMath for uint;
Token public token;
bool public crowdsaleClosed = false;
uint public lcgt = 0;
event ExternalPurchase(address indexed holder, string tx, string currency, uint256 currencyAmount, uint256 rateToEther, uint256 tokenAmount);
event CrowdsaleClose();
function Crowdsale() public {
token = new Token();
token.mint(0xBed698c8e0f099fCE780f9870E94024183d9BA52, 3000000 ether);
token.mint(0x9ce850681bCD535555299fC315f28FB11fB031f7, 11000000 ether);
token.mint(this, 20000000 ether);
addManager(0x3c64B86cEE4E60EDdA517521b46Ac74134442058);
}
function externalPurchase(address _to, string _tx, string _currency, uint _value, uint256 _rate, uint256 _tokens) whenNotPaused onlyManager public {
token.mint(_to, _tokens);
ExternalPurchase(_to, _tx, _currency, _value, _rate, _tokens);
}
function closeCrowdsale(address _to) onlyOwner public {
require(!crowdsaleClosed);
token.finishMinting();
token.transferOwnership(_to);
crowdsaleClosed = true;
CrowdsaleClose();
}
function getCommandTokens() onlyOwner public {
uint send = 0;
if(now >= 1546300800 && lcgt < 1546300800) send = 2000000 ether; // 01.01.2019
else if(now >= 1554076800 && lcgt < 1554076800) send = 2250000 ether; // 01.04.2019
else if(now >= 1561939200 && lcgt < 1561939200) send = 2250000 ether; // 01.07.2019
else if(now >= 1569888000 && lcgt < 1569888000) send = 2250000 ether; // 01.10.2019
else if(now >= 1577836800 && lcgt < 1577836800) send = 2250000 ether; // 01.01.2020
else if(now >= 1585699200 && lcgt < 1585699200) send = 2250000 ether; // 01.04.2020
else if(now >= 1593561600 && lcgt < 1593561600) send = 2250000 ether; // 01.07.2020
else if(now >= 1601510400 && lcgt < 1601510400) send = 2250000 ether; // 01.10.2020
else if(now >= 1609459200 && lcgt < 1609459200) send = 2250000 ether; // 01.01.2021
require(send > 0);
lcgt = now;
token.transfer(0xD45e5AC3fe954A2dfa99865eCf3bB94179a396a3, send);
}
function withdrawTokens(ERC20 _token, address _to, uint _value) onlyOwner public returns(bool) {
require(_token != token || lcgt >= 1609459200);
return super.withdrawTokens(_token, _to, _value);
}
}