protected function UrlRegistrar::determine in URLs queuer 8

Determine what to do with the given response object.

Parameters

\Symfony\Component\HttpFoundation\Request $request: A Request object.

\Symfony\Component\HttpFoundation\Response $response: A Response object.

Return value

true|false|null

• NULL: Ignore the response, delete it from the registry if it exists.
• FALSE: Ignore the response, do not add to traffic registry.
• TRUE: Add the response to the traffic registry.

1 call to UrlRegistrar::determine()

UrlRegistrar::handle in src/StackMiddleware/UrlRegistrar.php

File

src/StackMiddleware/UrlRegistrar.php, line 98

Class

UrlRegistrar

Collects URLs for all passing traffic.

Namespace

Drupal\purge_queuer_url\StackMiddleware

Code

protected function determine(Request $request, Response $response) {
  if (!$response instanceof CacheableResponseInterface) {
    return FALSE;
  }

  // When page_cache is enabled, skip HITs to prevent running code twice.
  if ($cached = $response->headers
    ->get('X-Drupal-Cache')) {
    if ($cached === 'HIT') {
      return FALSE;
    }
  }

  // Don't gather responses that aren't going to be useful.
  if (!count($response
    ->getCacheableMetadata()
    ->getCacheTags())) {
    return NULL;
  }

  // Don't gather responses with dynamic elements in them.
  if ($response
    ->getMaxAge() < 1) {
    return NULL;
  }

  // Only allow ordinary responses, so prevent collecting 403's and redirects.
  if ($response
    ->getStatusCode() !== 200) {
    return NULL;
  }

  // Check if there are blacklisted patterns in the URL.
  $url = $this
    ->generateUrlOrPathToRegister($request);
  if (is_array($this->blacklist)) {
    foreach ($this->blacklist as $needle) {
      if (strpos($url, $needle) !== FALSE) {
        return NULL;
      }
    }
  }
  return TRUE;
}