<?php
declare(strict_types=1);
/**
* Pimcore
*
* This source file is available under two different licenses:
* - GNU General Public License version 3 (GPLv3)
* - Pimcore Enterprise License (PEL)
* Full copyright and license information is available in
* LICENSE.md which is distributed with this source code.
*
* @copyright Copyright (c) Pimcore GmbH (http://www.pimcore.org)
* @license http://www.pimcore.org/license GPLv3 and PEL
*/
namespace Pimcore\Bundle\CoreBundle\EventListener\Frontend;
use Pimcore\Analytics\Google\Tracker;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\EnabledTrait;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\PimcoreContextAwareTrait;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\ResponseInjectionTrait;
use Pimcore\Http\Request\Resolver\PimcoreContextResolver;
use Pimcore\Tool;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
class GoogleAnalyticsCodeListener
{
use EnabledTrait;
use ResponseInjectionTrait;
use PimcoreContextAwareTrait;
/**
* @var Tracker
*/
private $tracker;
public function __construct(Tracker $tracker)
{
$this->tracker = $tracker;
}
public function onKernelResponse(FilterResponseEvent $event)
{
if (!$this->isEnabled()) {
return;
}
$request = $event->getRequest();
if (!$event->isMasterRequest()) {
return;
}
// only inject analytics code on non-admin requests
if (!$this->matchesPimcoreContext($request, PimcoreContextResolver::CONTEXT_DEFAULT)) {
return;
}
if (!Tool::useFrontendOutputFilters()) {
return;
}
// It's standard industry practice to exclude tracking if the request includes the header 'X-Purpose:preview'
if ($request->server->get('HTTP_X_PURPOSE') === 'preview') {
return;
}
$response = $event->getResponse();
if (!$this->isHtmlResponse($response)) {
return;
}
$code = $this->tracker->generateCode();
if (empty($code)) {
return;
}
$this->injectBeforeHeadEnd($response, $code);
}
}