SecurityController.php

<?php

namespace Fp\OpenIdBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Security\Core\Security;

class SecurityController extends Controller
{
    public function loginAction(Request $request)
    {
        $session = $request->getSession();

        // get the error if any (works with forward and redirect -- see below)
        if ($request->attributes->has(Security::AUTHENTICATION_ERROR)) {
            $error = $request->attributes->get(Security::AUTHENTICATION_ERROR);
        } elseif (null !== $session && $session->has(Security::AUTHENTICATION_ERROR)) {
            $error = $session->get(Security::AUTHENTICATION_ERROR);
            $session->remove(Security::AUTHENTICATION_ERROR);
        } else {
            $error = '';
        }

        if ($error) {
            // TODO: this is a potential security risk (see http://trac.symfony-project.org/ticket/9523)
            $error = $error->getMessage();
        }

        return $this->render('FpOpenIdBundle:Security:login.html.twig', [
           'error' => $error
        ]);
    }

    public function checkAction()
    {
        throw new \RuntimeException('You must configure the check path to be handled by the firewall using fp_openid in your security firewall configuration.');
    }

    public function logoutAction()
    {
        throw new \RuntimeException('You must activate the logout in your security firewall configuration.');
    }
}