Part-DB-server/src/EventListener/DisallowSearchEngineIndexingRequestListener.php
2024-03-03 20:34:36 +01:00

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1.7 KiB
PHP

<?php
/*
* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
*
* Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace App\EventListener;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpKernel\Event\ResponseEvent;
#[AsEventListener]
class DisallowSearchEngineIndexingRequestListener
{
private const HEADER_NAME = 'X-Robots-Tag';
private readonly bool $enabled;
public function __construct(#[Autowire(param: 'partdb.demo_mode')] bool $demo_mode)
{
// Disable this listener in demo mode
$this->enabled = !$demo_mode;
}
public function __invoke(ResponseEvent $event): void
{
//Skip if disabled
if (!$this->enabled) {
return;
}
if (!$event->getResponse()->headers->has(self::HEADER_NAME)) {
$event->getResponse()->headers->set(self::HEADER_NAME, 'noindex');
}
}
}