<?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\Analytics\Piwik\EventListener;
use Pimcore\Analytics\Piwik\Tracker;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\PimcoreContextAwareTrait;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\PreviewRequestTrait;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\ResponseInjectionTrait;
use Pimcore\Http\Request\Resolver\PimcoreContextResolver;
use Pimcore\Tool;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\KernelEvents;
class TrackingCodeListener implements EventSubscriberInterface
{
use ResponseInjectionTrait;
use PimcoreContextAwareTrait;
use PreviewRequestTrait;
/**
* @var Tracker
*/
private $tracker;
/**
* @var bool
*/
private $enabled = true;
public function __construct(Tracker $tracker)
{
$this->tracker = $tracker;
}
public static function getSubscribedEvents()
{
return [
KernelEvents::RESPONSE => ['onKernelResponse', -110]
];
}
public function enable()
{
$this->enabled = true;
}
public function disable()
{
$this->enabled = false;
}
public function isEnabled(): bool
{
return $this->enabled;
}
public function onKernelResponse(FilterResponseEvent $event)
{
if (!$this->enabled) {
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 ($this->isPreviewRequest($request)) {
return;
}
// output filters are disabled
if (!Tool::useFrontendOutputFilters($event->getRequest())) {
return;
}
$response = $event->getResponse();
if (!$this->isHtmlResponse($response)) {
return;
}
$code = $this->tracker->generateCode();
if (empty($code)) {
return;
}
$this->injectBeforeHeadEnd($response, $code);
}
}