CustomErrorController.php in Customerror 8

Namespace

Drupal\customerror\Controller

File

src/Controller/CustomErrorController.php

<?php

namespace Drupal\customerror\Controller;

use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\Url;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
use Symfony\Component\HttpFoundation\RedirectResponse;

/**
 * Controller for errors pages.
 */
class CustomErrorController extends ControllerBase {

  /**
   * This is the method that will get called, with the services above already available.
   *
   * @param int $code
   *   The code of error.
   */
  public function index($code) {
    if (!is_numeric($code)) {
      throw new AccessDeniedHttpException();
    }
    $theme = customerror_get_theme($code);
    if (!empty($theme)) {
      global $custom_theme;
      $custom_theme = $theme;
    }
    switch ($code) {
      case 403:
        $internal_path = substr(\Drupal::request()
          ->getRequestUri(), strlen(base_path()));
        if ($internal_path) {
          $dest = parse_url($internal_path);
          if (isset($dest['query']['destination'])) {
            $_GET['destination'] = $dest['query']['destination'];
          }
          else {
            $_GET['destination'] = $internal_path;
          }
        }
        else {
          $_GET['destination'] = \Drupal::config('system.site')
            ->get('page.front');
        }
        $_SESSION['destination'] = $_GET['destination'];
      case 404:
      default:

        // Check if we should redirect.
        $destination = \Drupal::request()
          ->getRequestUri();
        $redirect_list = \Drupal::config('customerror.settings')
          ->get('redirect');
        $redirect_list = !empty($redirect_list) ? explode("\n", $redirect_list) : [];
        foreach ($redirect_list as $item) {
          list($src, $dst) = explode(' ', $item);
          if (isset($src) && isset($dst)) {
            $src = str_replace("/", "\\/", $src);
            $dst = str_replace("\r", "", $dst);

            // In case there are spaces in the URL, we escape them.
            $orig_dst = str_replace(" ", "%20", $destination);
            if (preg_match("/{$src}/", $orig_dst)) {

              // drupal_goto($dst);
              // return new RedirectResponse(url($dst, array('absolute' => TRUE)));
              $dst = $dst == '<front>' ? Url::fromRoute($dst)
                ->toString() : $dst;
              header('Location: ' . $dst, TRUE, 302);
              exit;
            }
          }
        }

        // Make sure that we sent an appropriate header.
        customerror_header($code);
        $content = \Drupal::config('customerror.settings')
          ->get("{$code}.body");
        break;
    }
    $login_form = '';

    // If the user is not logged in, show the login form.
    if (\Drupal::currentUser()
      ->isAnonymous()) {

      // For reasons that are not clear to me, setting the form state redirect
      // here has no effect, logging in at this form puts us on a custom error
      // path looking like this: /customerror/403?destination=/admin/config
      // And that destination isn't going to do anything for us at that point.
      // $path = $this->getRequest()->getPathInfo();
      // $url = \Drupal\Core\Url::fromUserInput($path);
      $form_state = new \Drupal\Core\Form\FormState();

      // $form_state->setRedirectUrl($url);
      // Instead of the above code, we have to do the same thing in ... ah,
      // that's the deal, we have to do it in the submit handler or else it's
      // overridden, OK this makes sense now.
      $login_form = \Drupal::formBuilder()
        ->getForm('Drupal\\user\\Form\\UserLoginForm', $form_state);
    }
    return [
      '#theme' => 'customerror__' . $code,
      '#description' => $content,
      '#login_form' => $login_form,
    ];
  }

  /**
   * Title callback.
   *
   * @param int $code
   *   The code of error.
   *
   * @return string
   *   The title to page.
   */
  public function titleCallback($code) {
    return \Drupal::config('customerror.settings')
      ->get("{$code}.title");
  }

  /**
   * Gets the request object.
   *
   * @return \Symfony\Component\HttpFoundation\Request
   *   The request object.
   */
  protected function getRequest() {
    if (!$this->requestStack) {
      $this->requestStack = \Drupal::service('request_stack');
    }
    return $this->requestStack
      ->getCurrentRequest();
  }

}

Classes

Name	Description
CustomErrorController	Controller for errors pages.