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Impersonating a User in Symfony2
namespace Acme\DemoBundle\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Role\SwitchUserRole;
use FOS\UserBundle\Propel\UserQuery;
class DemoController extends Controller
public function yourAction(Request $request)
$parameters = array();
// plenty of stuff to do?
$security = $this->get('security.context');
if ($security->isGranted('ROLE_ALLOWED_TO_SWITCH') or $security->isGranted('ROLE_PREVIOUS_ADMIN')) {
$parameters['users'] = UserQuery::create()->find();
$parameters['original_user'] = $this->get('security.context')->getToken();
foreach ($security->getToken()->getRoles() as $role) {
if ($role instanceof SwitchUserRole) {
$parameters['original_user'] = $role->getSource();
return $this->render('AcmeDemoBundle:Demo:yourAction.html.twig', $parameters);
<!-- twitter bootstrap snippet -->
<p class="pull-right">Logged in as <span>{{ }}</span></p>
{% if users is defined %}
<ul class="nav secondary-nav">
<li class="dropdown" data-dropdown="dropdown">
<a href="#" class="dropdown-toggle">Switch User</a>
<ul class="dropdown-menu">
{% for user in users %}
{% if user.username != original_user.username %}
<li><a href="?_switch_user={{ user.username }}">{{ user.username }}</a></li>
{% endif %}
{% endfor %}
<li class="divider"></li>
<li><a href="?_switch_user=_exit">{{ original_user.username }}</a></li>
{% endif %}
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