Symfony Profiler

<?php
namespace Kunstmaan\AdminBundle\EventListener;
use Kunstmaan\AdminBundle\Helper\AdminRouteHelper;
use Kunstmaan\AdminBundle\Helper\Toolbar\DataCollector;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\ResponseEvent;
use Symfony\Component\HttpKernel\HttpKernel;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Authorization\AuthorizationChecker;
use Twig\Environment;
class ToolbarListener implements EventSubscriberInterface
{
const DISABLED = 1;
const ENABLED = 2;
/**
* @var Environment
*/
protected $twig;
/**
* @var UrlGeneratorInterface
*/
protected $urlGenerator;
/**
* @var DataCollector
*/
protected $dataCollector;
/**
* @var AuthorizationChecker
*/
protected $authorizationChecker;
/**
* @var TokenStorageInterface
*/
protected $tokenStorage;
/**
* @var bool
*/
protected $enabled;
/**
* @var ContainerInterface
*/
private $container;
/**
* @var AdminRouteHelper
*/
protected $adminRouteHelper;
/**
* @var array
*/
protected $providerKeys;
/**
* @var array
*/
protected $adminFirewallName;
/**
* @param bool $enabled
* @param string $adminFirewallName
*/
public function __construct(
Environment $twig,
UrlGeneratorInterface $urlGenerator,
DataCollector $dataCollector,
AuthorizationChecker $authorizationChecker,
TokenStorageInterface $tokenStorage,
$enabled,
ContainerInterface $container,
AdminRouteHelper $adminRouteHelper,
array $providerKeys,
$adminFirewallName = 'main',
) {
$this->twig = $twig;
$this->urlGenerator = $urlGenerator;
$this->dataCollector = $dataCollector;
$this->authorizationChecker = $authorizationChecker;
$this->tokenStorage = $tokenStorage;
$this->enabled = $enabled;
$this->container = $container;
$this->adminRouteHelper = $adminRouteHelper;
$this->providerKeys = $providerKeys;
$this->adminFirewallName = $adminFirewallName;
}
/**
* @return array
*/
public static function getSubscribedEvents()
{
return [
KernelEvents::RESPONSE => ['onKernelResponse', -125],
];
}
/**
* @return bool
*/
public function isEnabled()
{
return !$this->container->has('profiler') && $this->enabled;
}
public function onKernelResponse(ResponseEvent $event)
{
if (!$this->isEnabled() || HttpKernel::MAIN_REQUEST !== $event->getRequestType()) {
return;
}
$response = $event->getResponse();
$request = $event->getRequest();
$session = $request->getSession();
$url = $event->getRequest()->getRequestUri();
$token = $this->tokenStorage->getToken();
if (null !== $token && method_exists($token, 'getFirewallName')) {
$key = $token->getFirewallName();
} else {
$key = $this->adminFirewallName;
}
// Only enable toolbar when the kunstmaan_admin.toolbar_firewall_names config value contains the current firewall name.
if (!\in_array($key, $this->providerKeys, false)) {
return false;
}
// Only enable toolbar when we can find an authenticated user in the session from the kunstmaan_admin.admin_firewall_name config value.
$authenticated = false;
if ($session->isStarted() && $session->has(sprintf('_security_%s', $this->adminFirewallName))) {
/** @var TokenInterface $token */
$token = unserialize($session->get(sprintf('_security_%s', $this->adminFirewallName)));
$authenticated = null !== $token;
}
// Do not capture redirects or modify XML HTTP Requests
if (!$authenticated || !$event->isMainRequest() || $request->isXmlHttpRequest() || $this->adminRouteHelper->isAdminRoute($url)) {
return;
}
if ($response->isRedirection() || ($response->headers->has('Content-Type') && false === strpos(
$response->headers->get('Content-Type'),
'html'
))
|| 'html' !== $request->getRequestFormat()
|| false !== stripos($response->headers->get('Content-Disposition'), 'attachment;')
) {
return;
}
$this->injectToolbar($response, $request);
}
/**
* Injects the admin toolbar into the given Response.
*
* @param Response $response A Response instance
*/
protected function injectToolbar(Response $response, Request $request)
{
$content = $response->getContent();
$pos = strripos($content, '</body>');
if (false !== $pos) {
$toolbar = "\n" . str_replace(
"\n",
'',
$this->twig->render(
'@KunstmaanAdmin/Toolbar/toolbar.html.twig',
['collectors' => $this->dataCollector->getDataCollectors()]
)
) . "\n";
$content = substr($content, 0, $pos) . $toolbar . substr($content, $pos);
$response->setContent($content);
}
}
}

vendor/kunstmaan/admin-bundle/EventListener/ToolbarListener.php line 122