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pragma solidity ^0.4.17;
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
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;
}
}
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/179
*/
contract ERC20Basic {
uint256 public totalSupply;
function balanceOf(address who) public constant returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public constant returns (uint256);
function transferFrom(address from, address to, uint256 value) public returns (bool);
function approve(address spender, uint256 value) public returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @title Basic token
* @dev Basic version of StandardToken, require mintingFinished before start transfers
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
bool public mintingFinished = false;
mapping(address => uint256) releaseTime;
// Only after finishMinting and checks for bounty accounts time restrictions
modifier timeAllowed() {
require(mintingFinished);
require(now > releaseTime[msg.sender]); //finishSale + releasedays * 1 days
_;
}
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) public timeAllowed returns (bool) {
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public constant returns (uint256 balance) {
return balances[_owner];
}
// release time of freezed account
function releaseAt(address _owner) public constant returns (uint256 date) {
return releaseTime[_owner];
}
// change restricted releaseXX account
function changeReleaseAccount(address _owner, address _newowner) public returns (bool) {
require(releaseTime[_owner] != 0 );
require(releaseTime[_newowner] == 0 );
balances[_newowner] = balances[_owner];
releaseTime[_newowner] = releaseTime[_owner];
balances[_owner] = 0;
releaseTime[_owner] = 0;
return true;
}
}
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amout of tokens to be transfered
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(mintingFinished);
var _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_to] = balances[_to].add(_value);
balances[_from] = balances[_from].sub(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
Transfer(_from, _to, _value);
return true;
}
/**
* @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) public timeAllowed returns (bool) {
// To change the approve amount you first have to reduce the addresses`
// allowance to zero by calling `approve(_spender, 0)` if it is not
// already 0 to mitigate the race condition described here:
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifing the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
/**
* @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() public {
owner = msg.sender;
}
/**
* @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;
}
}
/**
* @title Mintable token
* @dev Simple ERC20 Token example, with mintable token creation
* @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120
* Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
*/
contract MintableToken is StandardToken, Ownable {
event Mint(address indexed to, uint256 amount);
event UnMint(address indexed from, uint256 amount);
event MintFinished();
modifier canMint() {
require(!mintingFinished);
_;
}
/**
* @dev Function to mint tokens
* @param _to The address that will recieve the minted tokens.
* @param _amount The amount of tokens to mint.
* @param _releaseTime The (optional) freeze time for bounty accounts.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount, uint256 _releaseTime) public onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
if ( _releaseTime > 0 ) {
releaseTime[_to] = _releaseTime;
}
Mint(_to, _amount);
return true;
}
// drain tokens with refund
function unMint(address _from) public onlyOwner returns (bool) {
totalSupply = totalSupply.sub(balances[_from]);
UnMint(_from, balances[_from]);
balances[_from] = 0;
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() public onlyOwner returns (bool) {
mintingFinished = true;
MintFinished();
return true;
}
}
contract ArconaToken is MintableToken {
string public constant name = "Arcona Distribution Contract";
string public constant symbol = "Arcona";
uint32 public constant decimals = 3; // 0.001
}
contract Crowdsale is Ownable {
using SafeMath for uint;
address public multisig;
address public restricted;
address public registerbot;
address public release6m;
address public release12m;
address public release18m;
mapping (address => uint) public weiBalances;
mapping (address => bool) registered;
mapping (address => address) referral;
mapping (string => address) certificate;
uint restrictedPercent;
uint refererPercent = 55; // 5.5%
uint bonusPeriod = 10; // 10 days
ArconaToken public token = new ArconaToken();
uint public startPreSale;
uint public finishPreSale;
uint public startSale;
uint public finishSale;
bool public isGlobalPause=false;
uint public tokenTotal;
uint public totalWeiSale=0;
bool public isFinished=false;
uint public hardcap;
uint public softcap;
uint public ratePreSale = 400*10**3; // 1ETH = 400 ARN
uint public rateSale = 400*10**3; // 1ETH = 400 ARN
function Crowdsale(uint256 _startPreSale,uint256 _finishPreSale,uint256 _startSale,uint256 _finishSale,address _multisig,address _restricted,address _registerbot, address _release6m, address _release12m, address _release18m) public {
multisig = _multisig;
restricted = _restricted;
registerbot = _registerbot;
release6m = _release6m;
release12m = _release12m;
release18m = _release18m;
startSale=_startSale;
finishSale=_finishSale;
startPreSale=_startPreSale;
finishPreSale=_finishPreSale;
restrictedPercent = 40;
hardcap = 135000*10**18;
softcap = 2746*10**18;
}
modifier isRegistered() {
require (registered[msg.sender]);
_;
}
modifier preSaleIsOn() {
require(now > startPreSale && now < finishPreSale && !isGlobalPause);
_;
}
modifier saleIsOn() {
require(now > startSale && now < finishSale && !isGlobalPause);
_;
}
modifier anySaleIsOn() {
require((now > startPreSale && now < finishPreSale && !isGlobalPause) || (now > startSale && now < finishSale && !isGlobalPause));
_;
}
modifier isUnderHardCap() {
require(totalWeiSale <= hardcap);
_;
}
function changeMultisig(address _new) public onlyOwner {
multisig = _new;
}
function changeRegisterBot(address _new) public onlyOwner {
registerbot = _new;
}
function changeRestricted(address _new) public onlyOwner {
if (isFinished) {
require(token.releaseAt(_new) == 0);
token.changeReleaseAccount(restricted,_new);
}
restricted = _new;
}
function changeRelease6m(address _new) public onlyOwner {
if (isFinished) {
require(token.releaseAt(_new) == 0);
token.changeReleaseAccount(release6m,_new);
}
release6m = _new;
}
function changeRelease12m(address _new) public onlyOwner {
if (isFinished) {
require(token.releaseAt(_new) == 0);
token.changeReleaseAccount(release12m,_new);
}
release12m = _new;
}
function changeRelease18m(address _new) public onlyOwner {
if (isFinished) {
require(token.releaseAt(_new) == 0);
token.changeReleaseAccount(release18m,_new);
}
release18m = _new;
}
function addCertificate(string _id, address _owner) public onlyOwner {
require(certificate[_id] == address(0));
if (_owner != address(0)) {
certificate[_id] = _owner;
} else {
certificate[_id] = owner;
}
}
function editCertificate(string _id, address _newowner) public {
require(certificate[_id] != address(0));
require(msg.sender == certificate[_id] || msg.sender == owner);
certificate[_id] = _newowner;
}
function checkCertificate(string _id) public view returns (address) {
return certificate[_id];
}
function deleteCertificate(string _id) public onlyOwner {
delete certificate[_id];
}
function registerCustomer(address _customer, address _referral) public {
require(msg.sender == registerbot || msg.sender == owner);
require(_customer != address(0));
registered[_customer] = true;
if (_referral != address(0) && _referral != _customer) {
referral[_customer] = _referral;
}
}
function checkCustomer(address _customer) public view returns (bool, address) {
return ( registered[_customer], referral[_customer]);
}
function checkReleaseAt(address _owner) public constant returns (uint256 date) {
return token.releaseAt(_owner);
}
function deleteCustomer(address _customer) public onlyOwner {
require(_customer!= address(0));
delete registered[_customer];
delete referral[_customer];
// return Wei && Drain tokens
token.unMint(_customer);
if ( weiBalances[_customer] > 0 ) {
_customer.transfer(weiBalances[_customer]);
weiBalances[_customer] = 0;
}
}
function globalPause(bool _state) public onlyOwner {
isGlobalPause = _state;
}
function changeRateSale(uint _tokenAmount) public onlyOwner {
require(isGlobalPause || (now > startSale && now < finishSale));
rateSale = _tokenAmount;
}
function changeRatePreSale(uint _tokenAmount) public onlyOwner {
require(isGlobalPause || (now > startPreSale && now < finishPreSale));
ratePreSale = _tokenAmount;
}
function changeStartPreSale(uint256 _ts) public onlyOwner {
startPreSale = _ts;
}
function changeFinishPreSale(uint256 _ts) public onlyOwner {
finishPreSale = _ts;
}
function changeStartSale(uint256 _ts) public onlyOwner {
startSale = _ts;
}
function changeFinishSale(uint256 _ts) public onlyOwner {
finishSale = _ts;
}
function finishMinting() public onlyOwner {
require(totalWeiSale >= softcap);
require(!isFinished);
multisig.transfer(this.balance);
uint issuedTokenSupply = token.totalSupply();
// 40% restricted + 60% issuedTokenSupply = 100%
uint restrictedTokens = issuedTokenSupply.mul(restrictedPercent).div(100 - restrictedPercent);
issuedTokenSupply = issuedTokenSupply.add(restrictedTokens);
// 13% - 11% for any purpose and 2% bounty
token.mint(restricted, issuedTokenSupply.mul(13).div(100), now);
// 27% - freezed founds to team & adwisers
token.mint(release6m, issuedTokenSupply.mul(85).div(1000), now + 180 * 1 days); // 8.5 %
token.mint(release12m, issuedTokenSupply.mul(85).div(1000), now + 365 * 1 days); // 8.5 %
token.mint(release18m, issuedTokenSupply.mul(10).div(100), now + 545 * 1 days); // 10 %
tokenTotal=token.totalSupply();
token.finishMinting();
isFinished=true;
}
function foreignBuyTest(uint256 _weiAmount, uint256 _rate) public pure returns (uint tokenAmount) {
require(_weiAmount > 0);
require(_rate > 0);
return _rate.mul(_weiAmount).div(1 ether);
}
function foreignBuy(address _holder, uint256 _weiAmount, uint256 _rate) public isUnderHardCap preSaleIsOn onlyOwner {
require(_weiAmount > 0);
require(_rate > 0);
registered[_holder] = true;
uint tokens = _rate.mul(_weiAmount).div(1 ether);
token.mint(_holder, tokens, 0);
tokenTotal = token.totalSupply();
totalWeiSale = totalWeiSale.add(_weiAmount);
}
// Refund Either && Drain tokens
function refund() public {
require(totalWeiSale <= softcap && now >= finishSale);
require(weiBalances[msg.sender] > 0);
token.unMint(msg.sender);
msg.sender.transfer(weiBalances[msg.sender]);
totalWeiSale = totalWeiSale.sub(weiBalances[msg.sender]);
tokenTotal = token.totalSupply();
weiBalances[msg.sender] = 0;
}
function buyTokensPreSale() public isRegistered isUnderHardCap preSaleIsOn payable {
uint tokens = ratePreSale.mul(msg.value).div(1 ether);
require(tokens >= 10000); // min 10 tokens
multisig.transfer(msg.value);
uint bonusValueTokens = 0;
uint saleEther = (msg.value).mul(10).div(1 ether);
if (saleEther >= 125 && saleEther < 375 ) { // 12,5 ETH
bonusValueTokens = tokens.mul(15).div(100);
} else if (saleEther >= 375 && saleEther < 750 ) { // 37,5 ETH
bonusValueTokens = tokens.mul(20).div(100);
} else if (saleEther >= 750 && saleEther < 1250 ) { // 75 ETH
bonusValueTokens=tokens.mul(25).div(100);
} else if (saleEther >= 1250 ) { // 125 ETH
bonusValueTokens = tokens.mul(30).div(100);
}
tokens = tokens.add(bonusValueTokens);
totalWeiSale = totalWeiSale.add(msg.value);
token.mint(msg.sender, tokens, 0);
if ( referral[msg.sender] != address(0) ) {
uint refererTokens = tokens.mul(refererPercent).div(1000);
token.mint(referral[msg.sender], refererTokens, 0);
}
tokenTotal=token.totalSupply();
}
function createTokens() public isRegistered isUnderHardCap saleIsOn payable {
uint tokens = rateSale.mul(msg.value).div(1 ether);
require(tokens >= 10000); // min 10 tokens
uint bonusTokens = 0;
if ( now < startSale + (bonusPeriod * 1 days) ) {
uint percent = bonusPeriod - (now - startSale).div(1 days);
if ( percent > 0 ) {
bonusTokens = tokens.mul(percent).div(100);
}
}
tokens=tokens.add(bonusTokens);
totalWeiSale = totalWeiSale.add(msg.value);
token.mint(msg.sender, tokens, 0);
if ( referral[msg.sender] != address(0) ) {
uint refererTokens = tokens.mul(refererPercent).div(1000);
token.mint(referral[msg.sender], refererTokens, 0);
}
tokenTotal=token.totalSupply();
weiBalances[msg.sender] = weiBalances[msg.sender].add(msg.value);
}
function createTokensAnySale() public isUnderHardCap anySaleIsOn payable {
if ((now > startPreSale && now < finishPreSale) && !isGlobalPause) {
buyTokensPreSale();
} else if ((now > startSale && now < finishSale) && !isGlobalPause) {
createTokens();
} else {
revert();
}
}
function() external anySaleIsOn isUnderHardCap payable {
createTokensAnySale();
}
}