Symfony Profiler

<?php
namespace App\EventListener;
use Twig\Environment;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\ExceptionEvent;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
class ExceptionSubscriber implements EventSubscriberInterface
{
private $user;
private $twig;
private $container;
public function __construct(Environment $twig, ContainerInterface $container, UserInterface $user = null)
{
$this->user = $user;
$this->twig = $twig;
$this->container = $container;
}
public static function getSubscribedEvents()
{
return [
KernelEvents::EXCEPTION => [
['onKernelException', 10]
]
];
}
public function onKernelException(ExceptionEvent $event)
{
// We only need to suppress errors in production environment
if ($this->container->get('kernel')->getEnvironment() != 'prod') {
return;
}
// @TODO: We need to take into account the response type as well (html, xml, json)
$exception = method_exists($event, 'getThrowable') ? $event->getThrowable() : $event->getException();
if ($exception->getCode() == 403) {
// On forbidden exception, we need to either:
// a) If user session is set, display forbidden page
// b) If user session is not set, redirect to login page
if (!empty($this->container->get('security.token_storage')->getToken()->getUser()) && $this->container->get('security.token_storage')->getToken()->getUser() != "anon.") {
$template = $this->twig->render('errors/error.html.twig', [
'code' => 403,
'message' => 'Access Forbidden',
'description' => 'You are not authorized to access this page.',
]);
$event->setResponse(new Response($template, 403));
}
} else {
if ($exception instanceof NotFoundHttpException || $exception->getCode() == 404) {
$template = $this->twig->render('errors/error.html.twig', [
'code' => 404,
'message' => 'Page not Found',
'description' => 'We were not able to find the page you are looking for.',
]);
$event->setResponse(new Response($template, 404));
} else {
$template = $this->twig->render('errors/error.html.twig', [
'message' => 'Internal Server Error',
'code' => 500,
'description' => 'Something has gone wrong on the server. Please try again later.',
]);
$event->setResponse(new Response($template, 500));
}
}
}
}

src/EventListener/ExceptionSubscriber.php line 36