Symfony2 Routing - route subdomains

Is there a way to set up hostname based routing in Symfony2?

I didn't find anything about this topic in the official documentation.
http://symfony.com/doc/2.0/book/routing.html

I want to route the request based on the given hostname:
foo.example.com
bar.example.com
{{subdomain}}.example.com

So in essence, the controller would get the current subdomain passed as a parameter.

Similar to the Zend solution:
http://framework.zend.com/manual/en/zend.controller.router.html#zend.controller.router.routes.hostname

$hostnameRoute = new Zend_Controller_Router_Route_Hostname(
    ':username.users.example.com',
    array(
        'controller' => 'profile',
        'action'     => 'userinfo'
    )
);
$plainPathRoute = new Zend_Controller_Router_Route_Static('');

$router->addRoute('user', $hostnameRoute->chain($plainPathRoute));

I hope that it's possible and I just missed it somehow.
Thanks in advance!

Solution 1:

Just to point out that this is now added in Symfony v2.2 - http://symfony.com/doc/master/components/routing/hostname_pattern.html.

mobile_homepage:
    path:     /
    host:     m.{domain}
    defaults: { _controller: AcmeDemoBundle:Main:mobileHomepage }
    requirements:
        domain: %domain%

homepage:
    path:  /
    defaults: { _controller: AcmeDemoBundle:Main:homepage }

Solution 2:

This is my solution:

In the config.yml inside app dir add the following lines:

services:
   kernel.listener.subdomain_listener:
       class: Acme\DemoBundle\Listener\SubdomainListener
       tags:
           - { name: kernel.event_listener, event: kernel.request, method: onDomainParse }

Then create the class SubdomainListener.php as:

<?php

namespace Acme\DemoBundle\Listener;

use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\Event;

class SubdomainListener
{
   public function onDomainParse(Event $event)
   {
       $request = $event->getRequest();
       $session = $request->getSession();

       // todo: parsing subdomain to detect country

       $session->set('subdomain', $request->getHost());
   }
}

Solution 3:

Alternatively get hostname in the controller:

class DefaultController extends PowmaController {

  /**
   * @Route("/test")
   */
  public function testAction() {
    return new Response( 'Hostname ' . $this->getRequestHostnameString() );
  }

  function getRequestHostnameString() {
    return $this->getRequest()->getHost();
  }

Solution 4:

I assume that subdomain routing in symfony2 is process of choose defined controller in according to subdomain part of hostname, and session variable is not help to resolve defined controller.

I set request attribute: _controller, in kernel listener like this

$request->attributes->set('_controller','AcmeBundle:Demo:main');

This is help to route to defined controller, but I lose debug profiler in dev environment, still I can not detect a cause