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drupalcampbristol/core/modules/user/src/EventSubscriber/AccessDeniedSubscriber.php

86 lines
2.8 KiB
PHP

<?php
namespace Drupal\user\EventSubscriber;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Routing\RouteMatch;
use Drupal\Core\Routing\UrlGeneratorTrait;
use Drupal\Core\Routing\UrlGeneratorInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
use Symfony\Component\HttpKernel\KernelEvents;
/**
* Redirects users when access is denied.
*
* Anonymous users are taken to the login page when attempting to access the
* user profile pages. Authenticated users are redirected from the login form to
* their profile page and from the user registration form to their profile edit
* form.
*/
class AccessDeniedSubscriber implements EventSubscriberInterface {
use UrlGeneratorTrait;
/**
* The current user.
*
* @var \Drupal\Core\Session\AccountInterface
*/
protected $account;
/**
* Constructs a new redirect subscriber.
*
* @param \Drupal\Core\Session\AccountInterface $account
* The current user.
* @param \Drupal\Core\Routing\UrlGeneratorInterface $url_generator
* The URL generator.
*/
public function __construct(AccountInterface $account, UrlGeneratorInterface $url_generator) {
$this->account = $account;
$this->setUrlGenerator($url_generator);
}
/**
* Redirects users when access is denied.
*
* @param \Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent $event
* The event to process.
*/
public function onException(GetResponseForExceptionEvent $event) {
$exception = $event->getException();
if ($exception instanceof AccessDeniedHttpException) {
$route_name = RouteMatch::createFromRequest($event->getRequest())->getRouteName();
if ($this->account->isAuthenticated()) {
switch ($route_name) {
case 'user.login';
// Redirect an authenticated user to the profile page.
$event->setResponse($this->redirect('entity.user.canonical', ['user' => $this->account->id()]));
break;
case 'user.register';
// Redirect an authenticated user to the profile form.
$event->setResponse($this->redirect('entity.user.edit_form', ['user' => $this->account->id()]));
break;
}
}
elseif ($route_name === 'user.page') {
$event->setResponse($this->redirect('user.login'));
}
}
}
/**
* {@inheritdoc}
*/
public static function getSubscribedEvents() {
// Use a higher priority than
// \Drupal\Core\EventSubscriber\ExceptionLoggingSubscriber, because there's
// no need to log the exception if we can redirect.
$events[KernelEvents::EXCEPTION][] = ['onException', 75];
return $events;
}
}