Contract Source Code:
File 1 of 1 : TeamToken
pragma solidity ^0.4.18;
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
/**
* @dev Multiplies two numbers, throws on overflow.
*/
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;
}
/**
* @dev Integer division of two numbers, truncating the quotient.
*/
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;
}
/**
* @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
/**
* @dev Adds two numbers, throws on overflow.
*/
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 {
function totalSupply() public view returns (uint256);
function balanceOf(address who) public view returns (uint256);
function transfer(address to, uint256 value) public returns (bool);
event Transfer(address indexed from, address indexed to, 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;
uint256 totalSupply_;
/**
* @dev total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @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) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
// SafeMath.sub will throw if there is not enough balance.
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 view returns (uint256 balance) {
return balances[_owner];
}
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public view 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 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 view returns (uint256) {
return allowed[_owner][_spender];
}
/**
* @dev Increase the amount of tokens that an owner allowed to a 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
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
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;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
*
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
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;
}
}
/**
* @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;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @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));
OwnershipTransferred(owner, newOwner);
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 MintFinished();
bool public mintingFinished = false;
modifier canMint() {
require(!mintingFinished);
_;
}
/**
* @dev Function to mint tokens
* @param _to The address that will receive 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) 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;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() onlyOwner canMint public returns (bool) {
mintingFinished = true;
MintFinished();
return true;
}
}
// TEAM Token is an index token of TokenStars platform
// Copyright (c) 2017 TokenStars
// Made by Aler Denisov
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
contract StarTokenInterface is MintableToken {
// Cheatsheet of inherit methods and events
// function transferOwnership(address newOwner);
// function allowance(address owner, address spender) constant returns (uint256);
// function transfer(address _to, uint256 _value) returns (bool);
// function transferFrom(address from, address to, uint256 value) returns (bool);
// function approve(address spender, uint256 value) returns (bool);
// function increaseApproval (address _spender, uint _addedValue) returns (bool success);
// function decreaseApproval (address _spender, uint _subtractedValue) returns (bool success);
// function finishMinting() returns (bool);
// function mint(address _to, uint256 _amount) returns (bool);
// event Approval(address indexed owner, address indexed spender, uint256 value);
// event Mint(address indexed to, uint256 amount);
// event MintFinished();
// Custom methods and events
function openTransfer() public returns (bool);
function toggleTransferFor(address _for) public returns (bool);
function extraMint() public returns (bool);
event TransferAllowed();
event TransferAllowanceFor(address indexed who, bool indexed state);
}
// TEAM Token is an index token of TokenStars platform
// Copyright (c) 2017 TokenStars
// Made by Aler Denisov
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
contract TeamToken is StarTokenInterface {
using SafeMath for uint256;
// ERC20 constants
string public constant name = "TEAM";
string public constant symbol = "TEAM";
uint public constant decimals = 4;
// Minting constants
uint256 public constant MAXSOLD_SUPPLY = 450000000000;
uint256 public constant HARDCAPPED_SUPPLY = 750000000000;
uint256 public investorSupply = 0;
uint256 public extraSupply = 0;
uint256 public freeToExtraMinting = 0;
uint256 public constant DISTRIBUTION_INVESTORS = 60;
uint256 public constant DISTRIBUTION_TEAM = 20;
uint256 public constant DISTRIBUTION_COMMUNITY = 20;
address public teamTokensHolder;
address public communityTokensHolder;
// Transfer rules
bool public transferAllowed = false;
mapping (address=>bool) public specialAllowed;
// Transfer rules events
// event TransferAllowed();
// event TransferAllowanceFor(address indexed who, bool indexed state);
// Holders events
event ChangeCommunityHolder(address indexed from, address indexed to);
event ChangeTeamHolder(address indexed from, address indexed to);
/**
* @dev check transfer is allowed
*/
modifier allowTransfer() {
require(transferAllowed || specialAllowed[msg.sender]);
_;
}
function TeamToken() public {
teamTokensHolder = msg.sender;
communityTokensHolder = msg.sender;
ChangeTeamHolder(0x0, teamTokensHolder);
ChangeCommunityHolder(0x0, communityTokensHolder);
}
/**
* @dev change team tokens holder
* @param _tokenHolder The address of next team tokens holder
*/
function setTeamTokensHolder(address _tokenHolder) onlyOwner public returns (bool) {
require(_tokenHolder != 0);
address temporaryEventAddress = teamTokensHolder;
teamTokensHolder = _tokenHolder;
ChangeTeamHolder(temporaryEventAddress, teamTokensHolder);
return true;
}
/**
* @dev change community tokens holder
* @param _tokenHolder The address of next community tokens holder
*/
function setCommunityTokensHolder(address _tokenHolder) onlyOwner public returns (bool) {
require(_tokenHolder != 0);
address temporaryEventAddress = communityTokensHolder;
communityTokensHolder = _tokenHolder;
ChangeCommunityHolder(temporaryEventAddress, communityTokensHolder);
return true;
}
/**
* @dev Doesn't allow to send funds on contract!
*/
function () payable public {
require(false);
}
/**
* @dev transfer token for a specified address if transfer is open
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) allowTransfer public returns (bool) {
return super.transfer(_to, _value);
}
/**
* @dev Transfer tokens from one address to another if transfer is open
* @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) allowTransfer public returns (bool) {
return super.transferFrom(_from, _to, _value);
}
/**
* @dev Open transfer for everyone or throws
*/
function openTransfer() onlyOwner public returns (bool) {
require(!transferAllowed);
transferAllowed = true;
TransferAllowed();
return true;
}
/**
* @dev allow transfer for the given address against global rules
* @param _for addres The address of special allowed transfer (required for smart contracts)
*/
function toggleTransferFor(address _for) onlyOwner public returns (bool) {
specialAllowed[_for] = !specialAllowed[_for];
TransferAllowanceFor(_for, specialAllowed[_for]);
return specialAllowed[_for];
}
/**
* @dev Function to mint tokens for investor
* @param _to The address that will receive the minted tokens.
* @param _amount The amount of tokens to emit.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount) onlyOwner canMint public returns (bool) {
require(_amount > 0);
totalSupply_ = totalSupply_.add(_amount);
investorSupply = investorSupply.add(_amount);
freeToExtraMinting = freeToExtraMinting.add(_amount);
// Prevent to emit more than sale hardcap!
assert(investorSupply <= MAXSOLD_SUPPLY);
assert(totalSupply_ <= HARDCAPPED_SUPPLY);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
Transfer(address(this), _to, _amount);
return true;
}
/**
* @dev Mint extra token to corresponding token and community holders
*/
function extraMint() onlyOwner canMint public returns (bool) {
require(freeToExtraMinting > 0);
uint256 onePercent = freeToExtraMinting / DISTRIBUTION_INVESTORS;
uint256 teamPart = onePercent * DISTRIBUTION_TEAM;
uint256 communityPart = onePercent * DISTRIBUTION_COMMUNITY;
uint256 extraTokens = teamPart.add(communityPart);
totalSupply_ = totalSupply_.add(extraTokens);
extraSupply = extraSupply.add(extraTokens);
uint256 leftToNextMinting = freeToExtraMinting % DISTRIBUTION_INVESTORS;
freeToExtraMinting = leftToNextMinting;
assert(totalSupply_ <= HARDCAPPED_SUPPLY);
assert(extraSupply <= HARDCAPPED_SUPPLY.sub(MAXSOLD_SUPPLY));
balances[teamTokensHolder] = balances[teamTokensHolder].add(teamPart);
balances[communityTokensHolder] = balances[communityTokensHolder].add(communityPart);
Mint(teamTokensHolder, teamPart);
Transfer(address(this), teamTokensHolder, teamPart);
Mint(communityTokensHolder, communityPart);
Transfer(address(this), communityTokensHolder, communityPart);
return true;
}
/**
* @dev Increase approved amount to spend
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase already approved amount.
*/
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;
}
/**
* @dev Decrease approved amount to spend
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease already approved amount.
*/
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;
}
function finilize() onlyOwner public returns (bool) {
require(mintingFinished);
require(transferAllowed);
owner = 0x0;
return true;
}
}