class CspSubscriber in Googalytics - Google Analytics 8

Alter CSP policy for Google Analytics.

Hierarchy

• class \Drupal\ga\EventSubscriber\CspSubscriber implements \Symfony\Component\EventDispatcher\EventSubscriberInterface

1 file declares its use of CspSubscriber

CspSubscriberTest.php in tests/src/Unit/EventSubscriber/CspSubscriberTest.php

1 string reference to 'CspSubscriber'

ga.services.yml in ./ga.services.yml

ga.services.yml

1 service uses CspSubscriber

ga.csp_subscriber in ./ga.services.yml

Drupal\ga\EventSubscriber\CspSubscriber

File

src/EventSubscriber/CspSubscriber.php, line 12

Namespace

Drupal\ga\EventSubscriber

class CspSubscriber implements EventSubscriberInterface {
  const TRACKING_DOMAIN = 'https://www.google-analytics.com';

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    if (!class_exists(CspEvents::class)) {
      return [];
    }
    $events[CspEvents::POLICY_ALTER] = [
      'onCspPolicyAlter',
    ];
    return $events;
  }

  /**
   * Alter CSP policy for tracking requests.
   *
   * @param \Drupal\csp\Event\PolicyAlterEvent $alterEvent
   *   The Policy Alter event.
   */
  public function onCspPolicyAlter(PolicyAlterEvent $alterEvent) {
    $policy = $alterEvent
      ->getPolicy();
    if ($policy
      ->hasDirective('img-src')) {
      $policy
        ->appendDirective('img-src', [
        self::TRACKING_DOMAIN,
      ]);
    }
    elseif ($policy
      ->hasDirective('default-src')) {
      $imgDirective = array_merge($policy
        ->getDirective('default-src'), [
        self::TRACKING_DOMAIN,
      ]);
      $policy
        ->setDirective('img-src', $imgDirective);
    }
    if ($policy
      ->hasDirective('connect-src')) {
      $policy
        ->appendDirective('connect-src', [
        self::TRACKING_DOMAIN,
      ]);
    }
    elseif ($policy
      ->hasDirective('default-src')) {
      $connectDirective = array_merge($policy
        ->getDirective('default-src'), [
        self::TRACKING_DOMAIN,
      ]);
      $policy
        ->setDirective('connect-src', $connectDirective);
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CspSubscriber::getSubscribedEvents	public static	function	Returns an array of event names this subscriber wants to listen to.
CspSubscriber::onCspPolicyAlter	public	function	Alter CSP policy for tracking requests.
CspSubscriber::TRACKING_DOMAIN		constant