Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Routing/MethodFilter.php \Drupal\Core\Routing\MethodFilter::filter()
2. 8.9.x core/lib/Drupal/Core/Routing/MethodFilter.php \Drupal\Core\Routing\MethodFilter::filter()
3. 11.x core/lib/Drupal/Core/Routing/MethodFilter.php \Drupal\Core\Routing\MethodFilter::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/MethodFilter.php, line 17

Class

MethodFilter

Filters routes based on the HTTP method.

Namespace

Drupal\Core\Routing

Code

public function filter(RouteCollection $collection, Request $request) {
  $method = $request->getMethod();
  $all_supported_methods = [];
  foreach ($collection->all() as $name => $route) {
    $supported_methods = $route->getMethods();
    // A route not restricted to specific methods allows any method. If this
    // is the case, we'll also have at least one route left in the collection,
    // hence we don't need to calculate the set of all supported methods.
    if (empty($supported_methods)) {
      continue;
    }
    // If the GET method is allowed we also need to allow the HEAD method
    // since HEAD is a GET method that doesn't return the body.
    if (in_array('GET', $supported_methods, TRUE)) {
      $supported_methods[] = 'HEAD';
    }
    if (!in_array($method, $supported_methods, TRUE)) {
      $all_supported_methods[] = $supported_methods;
      $collection->remove($name);
    }
  }
  if (count($collection)) {
    return $collection;
  }
  throw new MethodNotAllowedException(array_unique(array_merge(...$all_supported_methods)));
}

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