Contract Name:
HashRushICO
Contract Source Code:
File 1 of 1 : HashRushICO
pragma solidity ^0.4.11;
/**
* @author Jefferson Davis
* HashRuchICO.sol creates the client's token for crowdsale and allows for subsequent token sales and minting of tokens
* Crowdsale contracts edited from original contract code at https://www.ethereum.org/crowdsale#crowdfund-your-idea
* Additional crowdsale contracts, functions, libraries from OpenZeppelin
* at https://github.com/OpenZeppelin/zeppelin-solidity/tree/master/contracts/token
* Token contract edited from original contract code at https://www.ethereum.org/token
* ERC20 interface and certain token functions adapted from https://github.com/ConsenSys/Tokens
**/
contract ERC20 {
//Sets events and functions for ERC20 token
event Approval(address indexed _owner, address indexed _spender, uint _value);
event Transfer(address indexed _from, address indexed _to, uint _value);
function allowance(address _owner, address _spender) constant returns (uint remaining);
function approve(address _spender, uint _value) returns (bool success);
function balanceOf(address _owner) constant returns (uint balance);
function transfer(address _to, uint _value) returns (bool success);
function transferFrom(address _from, address _to, uint _value) returns (bool success);
}
contract Owned {
//Public variable
address public owner;
//Sets contract creator as the owner
function Owned() {
owner = msg.sender;
}
//Sets onlyOwner modifier for specified functions
modifier onlyOwner {
require(msg.sender == owner);
_;
}
//Allows for transfer of contract ownership
function transferOwnership(address newOwner) onlyOwner {
owner = newOwner;
}
}
library SafeMath {
function add(uint256 a, uint256 b) internal returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
function div(uint256 a, uint256 b) internal 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 max64(uint64 a, uint64 b) internal constant returns (uint64) {
return a >= b ? a : b;
}
function max256(uint256 a, uint256 b) internal constant returns (uint256) {
return a >= b ? a : b;
}
function min64(uint64 a, uint64 b) internal constant returns (uint64) {
return a < b ? a : b;
}
function min256(uint256 a, uint256 b) internal constant returns (uint256) {
return a < b ? a : b;
}
function mul(uint256 a, uint256 b) internal returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function sub(uint256 a, uint256 b) internal returns (uint256) {
assert(b <= a);
return a - b;
}
}
contract HashRush is ERC20, Owned {
//Applies SafeMath library to uint256 operations
using SafeMath for uint256;
//Public variables
string public name;
string public symbol;
uint256 public decimals;
uint256 public totalSupply;
//Variables
uint256 multiplier;
//Creates arrays for balances
mapping (address => uint256) balance;
mapping (address => mapping (address => uint256)) allowed;
//Creates modifier to prevent short address attack
modifier onlyPayloadSize(uint size) {
if(msg.data.length < size + 4) revert();
_;
}
//Constructor
function HashRush(string tokenName, string tokenSymbol, uint8 decimalUnits, uint256 decimalMultiplier) {
name = tokenName;
symbol = tokenSymbol;
decimals = decimalUnits;
multiplier = decimalMultiplier;
}
//Provides the remaining balance of approved tokens from function approve
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
//Allows for a certain amount of tokens to be spent on behalf of the account owner
function approve(address _spender, uint256 _value) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
//Returns the account balance
function balanceOf(address _owner) constant returns (uint256 remainingBalance) {
return balance[_owner];
}
//Allows contract owner to mint new tokens, prevents numerical overflow
function mintToken(address target, uint256 mintedAmount) onlyOwner returns (bool success) {
require(mintedAmount > 0);
uint256 addTokens = mintedAmount;
balance[target] += addTokens;
totalSupply += addTokens;
Transfer(0, target, addTokens);
return true;
}
//Sends tokens from sender's account
function transfer(address _to, uint256 _value) onlyPayloadSize(2 * 32) returns (bool success) {
if ((balance[msg.sender] >= _value) && (balance[_to] + _value > balance[_to])) {
balance[msg.sender] -= _value;
balance[_to] += _value;
Transfer(msg.sender, _to, _value);
return true;
} else {
return false;
}
}
//Transfers tokens from an approved account
function transferFrom(address _from, address _to, uint256 _value) onlyPayloadSize(3 * 32) returns (bool success) {
if ((balance[_from] >= _value) && (allowed[_from][msg.sender] >= _value) && (balance[_to] + _value > balance[_to])) {
balance[_to] += _value;
balance[_from] -= _value;
allowed[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
} else {
return false;
}
}
}
contract HashRushICO is Owned, HashRush {
//Applies SafeMath library to uint256 operations
using SafeMath for uint256;
//Public Variables
address public multiSigWallet;
uint256 public amountRaised;
uint256 public startTime;
uint256 public stopTime;
uint256 public hardcap;
uint256 public price;
//Variables
bool crowdsaleClosed = true;
string tokenName = "HashRush";
string tokenSymbol = "RC";
uint256 multiplier = 100000000;
uint8 decimalUnits = 8;
//Initializes the token
function HashRushICO()
HashRush(tokenName, tokenSymbol, decimalUnits, multiplier) {
multiSigWallet = msg.sender;
hardcap = 70000000;
hardcap = hardcap.mul(multiplier);
}
//Fallback function creates tokens and sends to investor when crowdsale is open
function () payable {
require(!crowdsaleClosed
&& (now < stopTime)
&& (totalSupply.add(msg.value.mul(getPrice()).mul(multiplier).div(1 ether)) <= hardcap));
address recipient = msg.sender;
amountRaised = amountRaised.add(msg.value.div(1 ether));
uint256 tokens = msg.value.mul(getPrice()).mul(multiplier).div(1 ether);
totalSupply = totalSupply.add(tokens);
balance[recipient] = balance[recipient].add(tokens);
require(multiSigWallet.send(msg.value));
Transfer(0, recipient, tokens);
}
//Returns the current price of the token for the crowdsale
function getPrice() returns (uint256 result) {
return price;
}
//Returns time remaining on crowdsale
function getRemainingTime() constant returns (uint256) {
return stopTime;
}
//Set the sale hardcap amount
function setHardCapValue(uint256 newHardcap) onlyOwner returns (bool success) {
hardcap = newHardcap.mul(multiplier);
return true;
}
//Sets the multisig wallet for a crowdsale
function setMultiSigWallet(address wallet) onlyOwner returns (bool success) {
multiSigWallet = wallet;
return true;
}
//Sets the token price
function setPrice(uint256 newPriceperEther) onlyOwner returns (uint256) {
require(newPriceperEther > 0);
price = newPriceperEther;
return price;
}
//Allows owner to start the crowdsale from the time of execution until a specified stopTime
function startSale(uint256 saleStart, uint256 saleStop, uint256 salePrice, address setBeneficiary) onlyOwner returns (bool success) {
require(saleStop > now);
//startTime = 1502881261; // 16 August 2017, 11:01 AM GMT
//stopTime = 1504263601; // 1 September 2017, 11:00 AM GMT
startTime = saleStart;
stopTime = saleStop;
crowdsaleClosed = false;
setPrice(salePrice);
setMultiSigWallet(setBeneficiary);
return true;
}
//Allows owner to stop the crowdsale immediately
function stopSale() onlyOwner returns (bool success) {
stopTime = now;
crowdsaleClosed = true;
return true;
}
}
