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<?php
/**
 *
 * This file is part of the phpBB Forum Software package.
 *
 * @copyright (c) phpBB Limited <https://www.phpbb.com>
 * @license GNU General Public License, version 2 (GPL-2.0)
 *
 * For full copyright and license information, please see
 * the docs/CREDITS.txt file.
 *
 */
namespace phpbb\install\event;
use phpbb\exception\exception_interface;
use phpbb\install\controller\helper;
use phpbb\language\language;
use phpbb\template\template;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpFoundation\JsonResponse;
/**
 * Exception handler for the installer
 */
class kernel_exception_subscriber implements EventSubscriberInterface
{
    /**
     * @var helper
     */
    protected $controller_helper;
    /**
     * @var language
     */
    protected $language;
    /**
     * @var template
     */
    protected $template;
    /**
     * Constructor
     *
     * @param helper    $controller_helper
     * @param language    $language
     * @param template    $template
     */
    public function __construct(helper $controller_helper, language $language, template $template)
    {
        $this->controller_helper    = $controller_helper;
        $this->language                = $language;
        $this->template                = $template;
    }
    /**
     * This listener is run when the KernelEvents::EXCEPTION event is triggered
     *
     * @param GetResponseForExceptionEvent    $event
     */
    public function on_kernel_exception(GetResponseForExceptionEvent $event)
    {
        $exception = $event->getException();
        $message = $exception->getMessage();
        if ($exception instanceof exception_interface)
        {
            $message = $this->language->lang_array($message, $exception->get_parameters());
        }
        if (!$event->getRequest()->isXmlHttpRequest())
        {
            $this->template->assign_vars(array(
                'TITLE'    => $this->language->lang('INFORMATION'),
                'BODY'    => $message,
            ));
            $response = $this->controller_helper->render(
                'installer_main.html',
                $this->language->lang('INFORMATION'),
                false,
                500
            );
        }
        else
        {
            $data = array();
            if (!empty($message))
            {
                $data['message'] = $message;
            }
            if (defined('DEBUG'))
            {
                $data['trace'] = $exception->getTrace();
            }
            $response = new JsonResponse($data, 500);
        }
        if ($exception instanceof HttpExceptionInterface)
        {
            $response->setStatusCode($exception->getStatusCode());
            $response->headers->add($exception->getHeaders());
        }
        $event->setResponse($response);
    }
    /**
     * Returns an array of events the object is subscribed to
     *
     * @return array    Array of events the object is subscribed to
     */
    static public function getSubscribedEvents()
    {
        return array(
            KernelEvents::EXCEPTION        => 'on_kernel_exception',
        );
    }
}