<?php
/**
 * 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\Bundle\CoreBundle\EventListener\Traits\PimcoreContextAwareTrait;
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 InternalWysiwygHtmlAttributeFilterListener implements EventSubscriberInterface
{
    use ResponseInjectionTrait;
    use PimcoreContextAwareTrait;

    public static function getSubscribedEvents()
    {
        return [
            KernelEvents::RESPONSE => 'onKernelResponse'
        ];
    }

    /**
     * @param FilterResponseEvent $event
     */
    public function onKernelResponse(FilterResponseEvent $event)
    {
        $request = $event->getRequest();

        if (!$event->isMasterRequest()) {
            return;
        }

        if (!$this->matchesPimcoreContext($request, PimcoreContextResolver::CONTEXT_DEFAULT)) {
            return;
        }

        if (!Tool::useFrontendOutputFilters()) {
            return;
        }

        $response = $event->getResponse();
        if (!$this->isHtmlResponse($response)) {
            return;
        }

        $content = $response->getContent();
        $content = preg_replace('/ pimcore_(id|type|disable_thumbnail)=\\"([0-9a-z]+)\\"/', '', $content);

        $response->setContent($content);
    }
}
