How do I check if a user may access a given route?

Question

I am trying to render a link from a Url object and verify the user actually has access to that URL, like when viewing a node.

For some reason, this always returns FALSE, although the node is accessible when $language is the set language.

$_url = Url::fromRoute('<current>', [], ['language' => $language]);
if ($_url->access()) {
  // The code inside here is never executed.
}

How do I verify a user may access the given path, without actually loading the entity behind that path?

---

edit: current state:

$currentPath = \Drupal::service('path.current')->getPath();
$urlObject = Url::fromUserInput($currentPath);
$routeName = $urlObject->getRouteName();

$linkUrl = Url::fromRoute($routeName, [], ['language' => $dataLangId]);

debug($languageData['languageName']);
debug($linkUrl->toString());

if ($linkUrl->access()) {
  debug('access');
}
else {
  debug('denied');

}

results in:

Some mandatory parameters are missing ("node") to generate a URL for route "entity.node.canonical

Answer 1

I don't know why

$_url = Url::fromRoute('', [], ['language' => $language]);

Doesn't work with route name <current> but it works with other route names. For example with route with name some_module.some_route_name the following will work.

  $language = \Drupal::languageManager()->getCurrentLanguage()->getId();
  $_url = Url::fromRoute('some_module.some_route_name', [], ['language' => $language]);
  $userCurrent = \Drupal::currentUser();
  if ($_url->access($userCurrent)) {
    //- Do Stuff
  }

In your case for the current route. Try this out.

use Drupal\Core\Url;

  $request = \Drupal::request();
  $_url = Url::createFromRequest($request);
  $userCurrent = \Drupal::currentUser();
   if ($_url->access($userCurrent)) {
     //- Do Stuff 
  }