RegisterController::getAuthUser PHP Method

    private function getAuthUser()
    {
        if ($this->auth->hasIdentity()) {
            $user = $this->_helper->service('user')->find($this->auth->getIdentity());
        } else {
            $user = $this->_helper->service('user')->find($this->_getParam('user'));
        }
        if (empty($user)) {
            $this->_helper->flashMessenger(array('error', "User not found"));
            $this->_helper->redirector(null, null, 'default');
        }
        if (!$user->isPending()) {
            $this->_helper->flashMessenger(array('error', "User has been activated"));
            $this->_helper->redirector(null, null, 'default');
        }
        if ($this->auth->hasIdentity()) {
            return $user;
        }
        $token = $this->_getParam('token', false);
        if (!$token && !$auth->hasIdentity()) {
            $this->_helper->flashMessenger(array('error', "No token provided"));
            $this->_helper->redirector(null, null, 'default');
        }
        if (!$this->_helper->service('user.token')->checkToken($user, $token, 'email.confirm')) {
            $this->_helper->flashMessenger(array('error', "Invalid token"));
            $this->_helper->redirector(null, null, 'default');
        }
        return $user;
    }