function language_selection_page_language in Language Selection Page 7.2

Same name and namespace in other branches

1. 7 language_selection_page.module \language_selection_page_language()

Language selection callback method.

This callback is called prior calling the callback defined in hook_menu. It should normally return a language code but instead of that, we redirect the user to the language selection page.

This function is not a hook but a callback and I think it has its place in the .module file.

1 string reference to 'language_selection_page_language'

language_selection_page_language_negotiation_info in ./language_selection_page.module

Implements hook_language_negotiation_info().

File

./language_selection_page.module, line 92

Code

function language_selection_page_language($languages) {

  // Bail out when running tests on commandline.
  if (drupal_is_cli()) {
    return FALSE;
  }

  // Bail out when handling AJAX requests.
  if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    return FALSE;
  }
  $path = array_slice(explode('/', trim($_SERVER['REQUEST_URI'], '/')), 0);
  $request_path = implode('/', $path);

  // Don't run this code if we are accessing anything in the files path.
  $public_files_path = variable_get('file_public_path', conf_path() . '/files');
  if (strpos($request_path, $public_files_path) === 0) {
    return FALSE;
  }
  if (strpos($request_path, 'cdn/farfuture') === 0) {
    return FALSE;
  }
  if (strpos($request_path, 'httprl_async_function_callback') === 0) {
    return FALSE;
  }

  // Don't run this code on the language selection page itself.
  require_once './includes/common.inc';
  if ($path[0] === variable_get('language_selection_page_path', 'language_selection')) {
    return FALSE;
  }

  // @TODO: document this
  if (!isset($_SERVER['SERVER_ADDR'])) {
    return FALSE;
  }

  // Don't run this code if we are accessing another php file than index.php.
  if ($_SERVER['SCRIPT_NAME'] !== $GLOBALS['base_path'] . 'index.php') {
    return FALSE;
  }

  // Check the path against a list of paths where that the module shouldn't run
  // on.
  // This list of path is configurable on the admin page.
  require_once './includes/path.inc';
  require_once './includes/unicode.inc';
  if ($blacklist_pages = variable_get('language_selection_page_blacklisted_paths')) {
    $blacklist_pages = drupal_strtolower($blacklist_pages);
    $current_path = drupal_strtolower(drupal_get_path_alias($request_path));

    // In order to be able to blacklist pages like 'update.php',
    // if current_path is empty, the php REQUEST_URI will be match.
    if (empty($current_path)) {
      $current_path = ltrim($_SERVER['REQUEST_URI'], '/');
    }
    if (drupal_match_path($current_path, $blacklist_pages)) {
      return FALSE;
    }
  }

  // Check if the ignore "language neutral" option is checked.
  // If so, we will check if the entity language is set to LANGUAGE_NONE.
  // Checking also for content type translation options since node can have the
  // default language set instead of LANGUAGE_NONE.
  if (variable_get('language_selection_page_ignore_language_neutral', FALSE)) {
    require_once DRUPAL_ROOT . '/includes/bootstrap.inc';
    drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
    $entity = menu_get_object();
    if (isset($entity) && (isset($entity->language) && $entity->language == LANGUAGE_NONE || variable_get('language_content_type_' . $entity->type, '') === '0')) {
      return FALSE;
    }
  }

  // Do not return any language if we use the Drupal's block method
  // to display the redirection.
  // Be aware that this will automatically assign the default language.
  if (LANGUAGE_SELECTION_PAGE_BLOCK === variable_get('language_selection_page_redirect_type', LANGUAGE_SELECTION_PAGE_TEMPLATE_ONLY)) {
    return FALSE;
  }

  // Redirect to the language selection page properly.
  $language_selection_page_url_elements[] = variable_get('language_selection_page_path', 'language_selection');
  $language_selection_page_url_elements[] = $request_path ? $request_path : NULL;
  $language_selection_page_url = trim(implode('/', $language_selection_page_url_elements), '/');
  if (empty($GLOBALS['language']->provider)) {
    drupal_goto($language_selection_page_url, array(
      'absolute' => TRUE,
      'language' => LANGUAGE_NONE,
    ));
  }
  return FALSE;
}