// Vulnerability label: ARTHM
pragma solidity ^0.4.18;

// ----------------------------------------------------------------------------
// --- 0.4.21+commit.dfe3193c
// --- 'VEGAN' 'Vegan' token contract
// --- Symbol      : VEGAN
// --- Name        : Vegan
// --- Total supply: Generated from contributions
// --- Decimals    : 18
// --- @author EJS32 
// --- @title for the 01100101 01100001 01110010 01110100 01101000
// --- Developed by the Tessr Foundation - tessr.io 2018. 
// --- (c) VeganShift.org / The MIT License.
// ----------------------------------------------------------------------------

// ----------------------------------------------------------------------------
// --- Safe Math
// ----------------------------------------------------------------------------

contract SafeMath {
    function safeAdd(uint a, uint b) public pure returns (uint c) {
        c = a + b;
        require(c >= a);
    }
    function safeSub(uint a, uint b) public pure returns (uint c) {
        require(b <= a);
        c = a - b;
    }
    function safeMul(uint a, uint b) public pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
    function safeDiv(uint a, uint b) public pure returns (uint c) {
        c = a / b;
        require(b > 0);
    }
}

// ----------------------------------------------------------------------------
// --- ERC Token Standard #20 Interface
// --- https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// ----------------------------------------------------------------------------

contract ERC20Interface {
    function totalSupply() public constant returns (uint);
    function balanceOf(address tokenOwner) public constant returns (uint balance);
    function allowance(address tokenOwner, address spender) public constant returns (uint remaining);
    function transfer(address to, uint tokens) public returns (bool success);
    function approve(address spender, uint tokens) public returns (bool success);
    function transferFrom(address from, address to, uint tokens) public returns (bool success);

    event Transfer(address indexed from, address indexed to, uint tokens);
    event Approval(address indexed tokenOwner, address indexed spender, uint tokens);
}

// ----------------------------------------------------------------------------
// --- Contract function to receive approval and execute function in one call
// ----------------------------------------------------------------------------

contract ApproveAndCallFallBack {
    function receiveApproval(address from, uint256 tokens, address token, bytes data) public;
}

// ----------------------------------------------------------------------------
// --- Owned contract
// ----------------------------------------------------------------------------

contract Owned {
    address public owner;
    address public newOwner;

    event OwnershipTransferred(address indexed _from, address indexed _to);

    function Owned() public {
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address _newOwner) public onlyOwner {
        newOwner = _newOwner;
    }
    function acceptOwnership() public {
        require(msg.sender == newOwner);
         emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
        newOwner = address(0);
    }
}

// ----------------------------------------------------------------------------
// --- ERC20 Token, with the addition of symbol, name and decimals
// --- Receives ETH and generates tokens
// ----------------------------------------------------------------------------

    contract Vegan is ERC20Interface, Owned, SafeMath {
        string public symbol;
        string public  name;
        uint8 public decimals;
        uint public _totalSupply;
        uint public startDate;
        mapping(address => uint) balances;
        mapping(address => mapping(address => uint)) allowed;

// ------------------------------------------------------------------------
// --- Constructor
// ------------------------------------------------------------------------

    function Vegan() public {
        symbol = "VEGAN";
        name = "Vegan";
        decimals = 18;
        _totalSupply = 300000000000000000000000000;
        startDate = now;
        balances[owner] = _totalSupply;
        emit Transfer(address(0), owner, _totalSupply);
    }

// ------------------------------------------------------------------------
// --- Total supply
// ------------------------------------------------------------------------

    function totalSupply() public constant returns (uint) {
        return _totalSupply  - balances[address(0)];
    }

// ------------------------------------------------------------------------
// --- Get the token balance for account `tokenOwner`
// ------------------------------------------------------------------------

    function balanceOf(address tokenOwner) public constant returns (uint balance) {
        return balances[tokenOwner];
    }

// ------------------------------------------------------------------------
// --- Transfer the balance from token owner's account to `to` account
// --- Owner's account must have sufficient balance to transfer
// --- 0 value transfers are allowed
// ------------------------------------------------------------------------

    function transfer(address to, uint tokens) public returns (bool success) {
        balances[msg.sender] = safeSub(balances[msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(msg.sender, to, tokens);
        return true;
    }

// ------------------------------------------------------------------------
// --- Token owner can approve for `spender` to transferFrom
// ------------------------------------------------------------------------

    function approve(address spender, uint tokens) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        return true;
    }

// ------------------------------------------------------------------------
// --- Transfer `tokens` from the `from` account to the `to` account
// ------------------------------------------------------------------------

    function transferFrom(address from, address to, uint tokens) public returns (bool success) {
        balances[from] = safeSub(balances[from], tokens);
        allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
        balances[to] = safeAdd(balances[to], tokens);
        emit Transfer(from, to, tokens);
        return true;
    }

// ------------------------------------------------------------------------
// --- Returns the amount of tokens approved by the owner
// ------------------------------------------------------------------------

    function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
        return allowed[tokenOwner][spender];
    }

// ------------------------------------------------------------------------
// --- Token owner can approve for `spender` to transferFrom(...) `tokens`
// --- from the token owner's account. The `spender` contract function
// --- `receiveApproval(...)` is then executed
// ------------------------------------------------------------------------

    function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
        allowed[msg.sender][spender] = tokens;
        emit Approval(msg.sender, spender, tokens);
        ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
        return true;
    }

// ------------------------------------------------------------------------
// --- 700 tokens per 1 ETH
// ------------------------------------------------------------------------

    function () public payable {
        uint tokens;
        tokens = msg.value * 700;
        balances[msg.sender] = safeAdd(balances[msg.sender], tokens);
        _totalSupply = safeAdd(_totalSupply, tokens);
        emit Transfer(address(0), msg.sender, tokens);
        owner.transfer(msg.value);
    }

// ------------------------------------------------------------------------
// --- Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------

    function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
        return ERC20Interface(tokenAddress).transfer(owner, tokens);
    }
}