Same name and namespace in other branches

1. 8.9.x core/lib/Drupal/Core/Routing/ContentTypeHeaderMatcher.php \Drupal\Core\Routing\ContentTypeHeaderMatcher::filter()
2. 10 core/lib/Drupal/Core/Routing/ContentTypeHeaderMatcher.php \Drupal\Core\Routing\ContentTypeHeaderMatcher::filter()
3. 11.x core/lib/Drupal/Core/Routing/ContentTypeHeaderMatcher.php \Drupal\Core\Routing\ContentTypeHeaderMatcher::filter()

Filters the route collection against a request.

Parameters

\Symfony\Component\Routing\RouteCollection $collection: The collection against which to match.

\Symfony\Component\HttpFoundation\Request $request: A Request object against which to match.

Return value

\Symfony\Component\Routing\RouteCollection A non-empty RouteCollection of matched routes

Overrides FilterInterface::filter

File

core/lib/Drupal/Core/Routing/ContentTypeHeaderMatcher.php, line 17

Class

ContentTypeHeaderMatcher

Filters routes based on the HTTP Content-type header.

Namespace

Drupal\Core\Routing

Code

public function filter(RouteCollection $collection, Request $request) {
  // The Content-type header does not make sense on GET or DELETE requests,
  // because they do not carry any content. Nothing to filter in this case.
  // Same for all other safe methods.
  if ($request->isMethodSafe() || $request->isMethod('DELETE')) {
    return $collection;
  }
  $format = $request->getContentType();
  foreach ($collection as $name => $route) {
    $supported_formats = array_filter(explode('|', $route->getRequirement('_content_type_format') ?? ''));
    if (empty($supported_formats)) {
      // No restriction on the route, so we move the route to the end of the
      // collection by re-adding it. That way generic routes sink down in the
      // list and exact matching routes stay on top.
      $collection->add($name, $route);
    }
    elseif (!in_array($format, $supported_formats)) {
      $collection->remove($name);
    }
  }
  if (count($collection)) {
    return $collection;
  }
  // We do not throw a
  // \Symfony\Component\Routing\Exception\ResourceNotFoundException here
  // because we don't want to return a 404 status code, but rather a 415.
  if (!$request->headers
    ->get('Content-Type', FALSE)) {
    throw new UnsupportedMediaTypeHttpException('No "Content-Type" request header specified');
  }
  else {
    throw new UnsupportedMediaTypeHttpException('No route found that matches "Content-Type: ' . $request->headers
      ->get('Content-Type') . '"');
  }
}

---