Issue #3301428 by Watergate: Use safe-list pattern collection event to provide...

<?php

namespace Drupal\ssch\EventSubscriber;

use Drupal\vendor_stream_wrapper\Event\VendorStreamWrapperCollectSafeListRegexPatternsEvent;

use Drupal\vendor_stream_wrapper\Event\VendorStreamWrapperEvents;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**

 * Provides safe-list patterns for vendor library highlight files.

 */

class ServerSidedCodeHighlightingEventSubscriber implements EventSubscriberInterface {

  /**

   * Sets the patterns for vendor files that should be publicly available.

   *

   * @param \Drupal\vendor_stream_wrapper\Event\VendorStreamWrapperCollectSafeListRegexPatternsEvent $event

   *   The event object storing the patterns for files/directories of the vendor

   *   directory that should be publicly accessible.

   */

  public function setSafeListRegexPatterns(VendorStreamWrapperCollectSafeListRegexPatternsEvent $event): void {

    $event->getVendorStreamWrapperManager()->addSafeListRegexPatterns([

      '/^scrivo\/highlight\.php\/styles\/.*\.(css|png|jpg)$/',

    ]);

  }

  /**

   * {@inheritdoc}

   */

  public static function getSubscribedEvents(): array {

    return [

      VendorStreamWrapperEvents::COLLECT_SAFE_LIST_REGEX_PATTERNS => 'setSafeListRegexPatterns',

    ];

  }

}

  ssch.server_sided_code_highlighting:

    class: Drupal\ssch\Service\ServerSidedCodeHighlightingService

    arguments: ['@logger.channel.ssch']

  ssch.event_subscriber:

    class: Drupal\ssch\EventSubscriber\ServerSidedCodeHighlightingEventSubscriber

    tags:

      - { name: event_subscriber }