public function login($username = NULL, $password = NULL, $remember = FALSE)
{
    if(!$username && !$password && $this->exists())
    {
        Session::put($this->_sessionName, $this->data()->id);
    }
    else
    {
        $user = $this->find($username);

        if($user)
        {
            if($this->data()->password === Hash::make($password, $this->data()->salt))
            {
                Session::put($this->_sessionName, $this->data()->id);

                if($remember)
                {
                    $hash = Hash::unique();
                    $hashCheck = $this->_db->get('users_session',array('user_id','=',$this->data()->id));

                    if(!$hashCheck->count())
                    {
                        $this->_db->insert('users_session',  array(
                            'user_id' => $this->data()->id,
                            'hash' => $hash
                        ));
                    }
                    else
                    {
                        $hash = $hashCheck->first()->hash;
                    }

                    Cookie::put($this->_cookieName, $hash, Config::get('remember/cookie_expiry'));
                }
                return true;
            }
        }
    }

    return false;
}

if(Input::exists())
{
    if(Token::check(Input::get('token')))
    {
        $validation = new Validate();
        $validation = $validation->check($_POST, array(
            'username' => array('required' => true),
            'password' => array('required' => true)
        ));
        if($validation->passed())
        {
            $user = new User();

            $remember = (Input::get('remember') === 'on') ? true : false;
            $login = $user->login(Input::get('username'), Input::get('password'), $remember);

            if($login)
            {
                Redirect::to('user.php?user='.Input::get("username").'');
            }
            else
            {
                echo '<p>Sorry! Logging in failed</p>';
            }
        }
        else
        {
            foreach($validation->errors() as $error)
            {
                echo $error, '</br>';
            }
        }
    }
}