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@jabbawookiees jabbawookiees/HeroToken.sol Secret
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Smart Contract for HeroToken Version 2
pragma solidity ^0.4.16;
/**
* @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) external onlyOwner {
require(newOwner != address(0));
owner = newOwner;
}
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
function sub(uint256 a, uint256 b) internal constant returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal constant 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, with no allowances.
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
/**
* @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 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];
}
}
/**
* @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)) internal 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 amount of tokens to be transferred
*/
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;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
*
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @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 returns (bool) {
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 specifying the amount of tokens still available for the spender.
*/
function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
/**
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
*/
function increaseApproval(address _spender, uint _addedValue) public returns (bool success) {
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 success) {
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;
}
}
/**
* @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 MintFinished();
bool public mintingFinished = false;
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.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount) public onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
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;
}
}
/**
* @title Pausable
* @dev Base contract which allows children to implement an emergency stop mechanism.
*/
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev modifier to allow actions only when the contract IS paused
*/
modifier whenNotPaused() {
require(!paused);
_;
}
/**
* @dev modifier to allow actions only when the contract IS NOT paused
*/
modifier whenPaused {
require(paused);
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused returns (bool) {
paused = true;
Pause();
return true;
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused returns (bool) {
paused = false;
Unpause();
return true;
}
}
/**
* Pausable token
*
* Simple ERC20 Token example, with pausable token creation
**/
contract PausableToken is StandardToken, Pausable {
function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) {
super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) {
super.transferFrom(_from, _to, _value);
}
}
/**
* @title HeroOrigenToken
* @dev Hero Origen Token contract
*/
contract HeroOrigenToken is PausableToken, MintableToken {
using SafeMath for uint256;
string public constant name = "Hero Origen Token";
string public constant symbol = "HERO";
uint8 public constant decimals = 18;
}
/**
* @title MainSale
* @dev The main HERO token sale contract
*
*/
contract MainSale is Ownable {
using SafeMath for uint256;
event TokensPurchased(address indexed buyer, uint256 ether_amount);
event MainSaleClosed();
HeroOrigenToken public token = new HeroOrigenToken();
address public multisigVault;
uint256 public totalReceived = 0;
uint256 public hardcap = 250000 ether;
uint256 public minimum = 10 ether;
uint256 public altDeposits = 0;
uint256 public start = 1609372800; //new Date("December 31, 2020 00:00:00").getTime() / 1000
bool public saleOngoing = true;
/**
* @dev modifier to allow token creation only when the sale IS ON
*/
modifier isSaleOn() {
require(start <= now && saleOngoing);
_;
}
/**
* @dev modifier to prevent buying tokens below the minimum required
*/
modifier isAtLeastMinimum() {
require(msg.value >= minimum);
_;
}
/**
* @dev modifier to allow token creation only when the hardcap has not been reached
*/
modifier isUnderHardcap() {
require(totalReceived + altDeposits <= hardcap);
_;
}
function MainSale() public {
token.pause();
}
/*
* @dev Receive eth from the sender
* @param sender the sender to receive tokens.
*/
function acceptPayment(address sender) public isAtLeastMinimum isUnderHardcap isSaleOn payable {
totalReceived = totalReceived.add(msg.value);
multisigVault.transfer(this.balance);
TokensPurchased(sender, msg.value);
}
/**
* @dev Allows the owner to set the starting time.
* @param _start the new _start
*/
function setStart(uint256 _start) external onlyOwner {
start = _start;
}
/**
* @dev Allows the owner to set the minimum purchase.
* @param _minimum the new _minimum
*/
function setMinimum(uint256 _minimum) external onlyOwner {
minimum = _minimum;
}
/**
* @dev Allows the owner to set the hardcap.
* @param _hardcap the new hardcap
*/
function setHardcap(uint256 _hardcap) external onlyOwner {
hardcap = _hardcap;
}
/**
* @dev Allows to set the toal alt deposit measured in ETH to make sure the hardcap includes other deposits
* @param totalAltDeposits total amount ETH equivalent
*/
function setAltDeposits(uint256 totalAltDeposits) external onlyOwner {
altDeposits = totalAltDeposits;
}
/**
* @dev Allows the owner to set the multisig contract.
* @param _multisigVault the multisig contract address
*/
function setMultisigVault(address _multisigVault) external onlyOwner {
require(_multisigVault != address(0));
multisigVault = _multisigVault;
}
/**
* @dev Allows the owner to stop the sale
* @param _saleOngoing whether the sale is ongoing or not
*/
function setSaleOngoing(bool _saleOngoing) external onlyOwner {
saleOngoing = _saleOngoing;
}
/**
* @dev Allows the owner to close the sale and stop accepting ETH.
* The ownership of the token contract is transfered to this owner.
*/
function closeSale() external onlyOwner {
token.transferOwnership(owner);
MainSaleClosed();
}
/**
* @dev Allows the owner to transfer ERC20 tokens to the multisig vault
* @param _token the contract address of the ERC20 contract
*/
function retrieveTokens(address _token) external onlyOwner {
ERC20 foreignToken = ERC20(_token);
foreignToken.transfer(multisigVault, foreignToken.balanceOf(this));
}
/**
* @dev Fallback function which receives ether
*/
function() external payable {
acceptPayment(msg.sender);
}
}
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