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   1  <?php
   2  /**
   3   *
   4   * This file is part of the phpBB Forum Software package.
   5   *
   6   * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7   * @license GNU General Public License, version 2 (GPL-2.0)
   8   *
   9   * For full copyright and license information, please see
  10   * the docs/CREDITS.txt file.
  11   *
  12   */
  13  
  14  namespace phpbb\install\event;
  15  
  16  use phpbb\exception\exception_interface;
  17  use phpbb\install\controller\helper;
  18  use phpbb\language\language;
  19  use phpbb\template\template;
  20  use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  21  use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
  22  use Symfony\Component\HttpKernel\KernelEvents;
  23  use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
  24  use Symfony\Component\HttpFoundation\JsonResponse;
  25  
  26  /**
  27   * Exception handler for the installer
  28   */
  29  class kernel_exception_subscriber implements EventSubscriberInterface
  30  {
  31      /**
  32       * @var helper
  33       */
  34      protected $controller_helper;
  35  
  36      /**
  37       * @var language
  38       */
  39      protected $language;
  40  
  41      /**
  42       * @var template
  43       */
  44      protected $template;
  45  
  46      /**
  47       * Constructor
  48       *
  49       * @param helper    $controller_helper
  50       * @param language    $language
  51       * @param template    $template
  52       */
  53  	public function __construct(helper $controller_helper, language $language, template $template)
  54      {
  55          $this->controller_helper    = $controller_helper;
  56          $this->language                = $language;
  57          $this->template                = $template;
  58      }
  59  
  60      /**
  61       * This listener is run when the KernelEvents::EXCEPTION event is triggered
  62       *
  63       * @param GetResponseForExceptionEvent    $event
  64       */
  65  	public function on_kernel_exception(GetResponseForExceptionEvent $event)
  66      {
  67          $exception = $event->getException();
  68          $message = $exception->getMessage();
  69  
  70          if ($exception instanceof exception_interface)
  71          {
  72              $message = $this->language->lang_array($message, $exception->get_parameters());
  73          }
  74  
  75          if (!$event->getRequest()->isXmlHttpRequest())
  76          {
  77              $this->template->assign_vars(array(
  78                  'TITLE'    => $this->language->lang('INFORMATION'),
  79                  'BODY'    => $message,
  80              ));
  81  
  82              $response = $this->controller_helper->render(
  83                  'installer_main.html',
  84                  $this->language->lang('INFORMATION'),
  85                  false,
  86                  500
  87              );
  88          }
  89          else
  90          {
  91              $data = array();
  92  
  93              if (!empty($message))
  94              {
  95                  $data['message'] = $message;
  96              }
  97  
  98              if (defined('DEBUG'))
  99              {
 100                  $data['trace'] = $exception->getTrace();
 101              }
 102  
 103              $response = new JsonResponse($data, 500);
 104          }
 105  
 106          if ($exception instanceof HttpExceptionInterface)
 107          {
 108              $response->setStatusCode($exception->getStatusCode());
 109              $response->headers->add($exception->getHeaders());
 110          }
 111  
 112          $event->setResponse($response);
 113      }
 114  
 115      /**
 116       * Returns an array of events the object is subscribed to
 117       *
 118       * @return array    Array of events the object is subscribed to
 119       */
 120  	static public function getSubscribedEvents()
 121      {
 122          return array(
 123              KernelEvents::EXCEPTION        => 'on_kernel_exception',
 124          );
 125      }
 126  }