<?php
  public function addAction(Request $request) {
    $subscriber = new Subscriber();
    $username = $request->get('username');
    $password = $request->get('password');
    $domain = $request->get('domain');
    $email = $request->get('email');

    if (!isset($domain) || !isset($username) || !isset($password) || !isset($email)) {
      throw new \InvalidArgumentException('Some arguments are missing');
    }

    $subscriber->setUsername($username);
    $subscriber->setPassword($password);
    $subscriber->setDomain($domain);
    $subscriber->setEmailAddress($email);
    $subscriber->setHa1(md5($username . ':' . $domain . ':' . $password));
    $subscriber->setHa1b(md5($username . '@' . $domain . ':' . $domain . ':' . $password));

    $em = $this->getDoctrine()->getManager();
    $em->persist($subscriber);
    $em->flush();
    return new Response('Successful: ' . $subscriber->getId());
  }