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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\event;
  15  
  16  use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  17  use Symfony\Component\HttpFoundation\JsonResponse;
  18  use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
  19  use Symfony\Component\HttpKernel\KernelEvents;
  20  use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
  21  use Symfony\Component\HttpFoundation\Response;
  22  
  23  class kernel_exception_subscriber implements EventSubscriberInterface
  24  {
  25      /**
  26      * Template object
  27      * @var \phpbb\template\template
  28      */
  29      protected $template;
  30  
  31      /**
  32      * User object
  33      * @var \phpbb\user
  34      */
  35      protected $user;
  36  
  37      /** @var \phpbb\request\type_cast_helper */
  38      protected $type_caster;
  39  
  40      /**
  41      * Construct method
  42      *
  43      * @param \phpbb\template\template $template Template object
  44      * @param \phpbb\user $user User object
  45      */
  46  	public function __construct(\phpbb\template\template $template, \phpbb\user $user)
  47      {
  48          $this->template = $template;
  49          $this->user = $user;
  50          $this->type_caster = new \phpbb\request\type_cast_helper();
  51      }
  52  
  53      /**
  54      * This listener is run when the KernelEvents::EXCEPTION event is triggered
  55      *
  56      * @param GetResponseForExceptionEvent $event
  57      * @return null
  58      */
  59  	public function on_kernel_exception(GetResponseForExceptionEvent $event)
  60      {
  61          $exception = $event->getException();
  62  
  63          $message = $exception->getMessage();
  64          $this->type_caster->set_var($message, $message, 'string', true, false);
  65  
  66          if ($exception instanceof \phpbb\exception\exception_interface)
  67          {
  68              $message = call_user_func_array(array($this->user, 'lang'), array_merge(array($message), $exception->get_parameters()));
  69          }
  70  
  71          // Show <strong> text in bold
  72          $message = preg_replace('#&lt;(/?strong)&gt;#i', '<$1>', $message);
  73  
  74          if (!$event->getRequest()->isXmlHttpRequest())
  75          {
  76              page_header($this->user->lang('INFORMATION'));
  77  
  78              $this->template->assign_vars(array(
  79                  'MESSAGE_TITLE' => $this->user->lang('INFORMATION'),
  80                  'MESSAGE_TEXT'  => $message,
  81              ));
  82  
  83              $this->template->set_filenames(array(
  84                  'body' => 'message_body.html',
  85              ));
  86  
  87              page_footer(true, false, false);
  88  
  89              $response = new Response($this->template->assign_display('body'), 500);
  90          }
  91          else
  92          {
  93              $data = array();
  94  
  95              if (!empty($message))
  96              {
  97                  $data['message'] = $message;
  98              }
  99  
 100              if (defined('DEBUG'))
 101              {
 102                  $data['trace'] = $exception->getTrace();
 103              }
 104  
 105              $response = new JsonResponse($data, 500);
 106          }
 107  
 108          if ($exception instanceof HttpExceptionInterface)
 109          {
 110              $response->setStatusCode($exception->getStatusCode());
 111              $response->headers->add($exception->getHeaders());
 112          }
 113  
 114          $event->setResponse($response);
 115      }
 116  
 117  	public static function getSubscribedEvents()
 118      {
 119          return array(
 120              KernelEvents::EXCEPTION        => 'on_kernel_exception',
 121          );
 122      }
 123  }