Contract Source Code:
File 1 of 1 : BoraToken
pragma solidity ^0.4.18;
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
if (a == 0) {
return 0;
}
c = a * b;
assert(c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
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 c) {
c = a + b;
assert(c >= a);
return c;
}
}
contract Ownable {
address public owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
function Ownable() public {
owner = msg.sender;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0));
OwnershipTransferred(owner, newOwner);
owner = newOwner;
}
}
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
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 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);
}
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);
}
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
uint256 totalSupply_;
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
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 balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
}
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) internal allowed;
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 approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
}
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 PausableToken is StandardToken, Pausable {
function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) public whenNotPaused returns (bool) {
return super.approve(_spender, _value);
}
function increaseApproval(address _spender, uint _addedValue) public whenNotPaused returns (bool success) {
return super.increaseApproval(_spender, _addedValue);
}
function decreaseApproval(address _spender, uint _subtractedValue) public whenNotPaused returns (bool success) {
return super.decreaseApproval(_spender, _subtractedValue);
}
}
contract BoraToken is PausableToken {
string public name;
string public symbol;
uint8 public decimals;
event Burn(address to, uint256 amount, uint256 totalSupply);
event Lock(address token, address beneficiary, uint256 amount, uint256 releaseTime);
function BoraToken(uint256 _supply) public {
require(_supply != 0);
balances[msg.sender] = _supply;
totalSupply_ = _supply;
name = 'BORA';
symbol = 'BORA';
decimals = 18;
Transfer(address(0), msg.sender, _supply);
}
function lock(address _donor, address _beneficiary, uint256 amount, uint256 _duration, bool _revocable) onlyOwner public returns (LockedToken) {
uint256 releaseTime = now.add(_duration.mul(1 days));
LockedToken lockedToken = new LockedToken(this, _donor, _beneficiary, releaseTime, _revocable);
BasicToken.transfer(lockedToken, amount);
Lock(lockedToken, _beneficiary, lockedToken.balanceOf(), releaseTime);
return lockedToken;
}
function burn(uint256 _amount) onlyOwner public {
require(_amount <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_amount);
totalSupply_ = totalSupply_.sub(_amount);
Burn(msg.sender, _amount, totalSupply_);
Transfer(msg.sender, address(0), _amount);
}
}
contract LockedToken {
ERC20Basic public token;
address public donor;
address public beneficiary;
uint256 public releaseTime;
bool public revocable;
event Claim(address beneficiary, uint256 amount, uint256 releaseTime);
event Revoke(address donor, uint256 amount);
function LockedToken(ERC20Basic _token, address _donor, address _beneficiary, uint256 _releaseTime, bool _revocable) public {
require(_token != address(0));
require(_donor != address(0));
require(_beneficiary != address(0));
require(_releaseTime > now);
token = ERC20Basic(_token);
donor = _donor;
beneficiary = _beneficiary;
releaseTime = _releaseTime;
revocable = _revocable;
}
function balanceOf() public view returns (uint256) {
return token.balanceOf(this);
}
function revoke() public {
require(revocable);
require(msg.sender == donor);
uint amount = token.balanceOf(this);
require(amount > 0);
token.transfer(donor, amount);
Revoke(donor, amount);
}
function claim() public {
require(now >= releaseTime);
uint amount = token.balanceOf(this);
require(amount > 0);
token.transfer(beneficiary, amount);
Claim(beneficiary, amount, releaseTime);
}
}