ds-site/Classes/EventListener/ContentSecurityPolicyMutation.php
Daniel Siepmann 6f3b519477 Remove unnecessary TYPO3 defaults from CSP
TYPO3 adds some defaults which my website doesn't use.
These are removed to keep the website more secure and reduce transferred
header size.
2023-08-08 09:00:32 +02:00

48 lines
1.5 KiB
PHP

<?php
declare(strict_types=1);
/*
* Copyright (C) 2023 Daniel Siepmann <coding@daniel-siepmann.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
namespace DanielSiepmann\DsSite\EventListener;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Directive;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Event\PolicyMutatedEvent;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Scope;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\UriValue;
class ContentSecurityPolicyMutation
{
public function __invoke(PolicyMutatedEvent $event): void
{
if ($event->scope !== Scope::frontend()) {
return;
}
$policy = $event->getCurrentPolicy();
$policy->remove(Directive::FrameSrc);
$policy->reduce(
Directive::ImgSrc,
new UriValue('*.ytimg.com'),
new UriValue('*.vimeocdn.com')
);
}
}