Same name and namespace in other branches

1. 11.x core/modules/system/src/Controller/LinksetController.php \Drupal\system\Controller\LinksetController::process()

Serve linkset requests.

Parameters

\Symfony\Component\HttpFoundation\Request $request: An HTTP request.

\Drupal\system\MenuInterface $menu: A menu for which to produce a linkset.

Return value

\Drupal\Core\Cache\CacheableJsonResponse A linkset response.

File

core/modules/system/src/Controller/LinksetController.php, line 54

Class

LinksetController

Linkset controller.

Namespace

Drupal\system\Controller

Code

public function process(Request $request, MenuInterface $menu) {
  // Load the given menu's tree of elements.
  $tree = $this->loadMenuTree($menu);
  // Get the incoming request URI and parse it so the linkset can use a
  // relative URL for the linkset anchor.
  [
    'path' => $path,
    'query' => $query,
  ] = parse_url($request->getUri()) + [
    'query' => FALSE,
  ];
  // Construct a relative URL.
  $anchor = $path . (!empty($query) ? '?' . $query : '');
  $cacheability = CacheableMetadata::createFromObject($menu);
  // Encode the menu tree as links in the application/linkset+json media type
  // and add the machine name of the menu to which they belong.
  $menu_id = $menu->id();
  $links = $this->toLinkTargetObjects($tree, $cacheability);
  foreach ($links as $rel => $target_objects) {
    $links[$rel] = array_map(function (array $target) use ($menu_id) {
      // According to the Linkset specification, this member must be an array
      // since the "machine-name" target attribute is non-standard.
      // See https://tools.ietf.org/html/draft-ietf-httpapi-linkset-08#section-4.2.4.3
      return $target + [
        'machine-name' => [
          $menu_id,
        ],
      ];
    }, $target_objects);
  }
  $linkset = !empty($tree) ? [
    [
      'anchor' => $anchor,
    ] + $links,
  ] : [];
  $data = [
    'linkset' => $linkset,
  ];
  // Set the response content-type header.
  $headers = [
    'content-type' => 'application/linkset+json',
  ];
  $response = new CacheableJsonResponse($data, 200, $headers);
  // Attach cacheability metadata to the response.
  $response->addCacheableDependency($cacheability);
  return $response;
}

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