symfony/src/Symfony/Framework/WebBundle/Controller/ExceptionController.php

<?php

namespace Symfony\Framework\WebBundle\Controller;

use Symfony\Framework\WebBundle\Controller;
use Symfony\Framework\WebBundle\Debug\ExceptionFormatter;
use Symfony\Components\RequestHandler\Request;
use Symfony\Components\RequestHandler\Response;
use Symfony\Components\RequestHandler\Exception\HttpException;

/*
 * This file is part of the Symfony framework.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

/**
 * 
 *
 * @package    Symfony
 * @subpackage Framework_WebBundle
 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
 */
class ExceptionController extends Controller
{
  /**
   * @throws \InvalidArgumentException When the exception template does not exist
   */
  public function exceptionAction(\Exception $exception, Request $originalRequest, array $logs)
  {
    $template = $this->container->getParameter('kernel.debug') ? 'exception' : 'error';

    $request = $this->getRequest();
    $format = $format = $originalRequest->getRequestFormat();

    // when using CLI, we force the format to be TXT
    if (0 === strncasecmp(PHP_SAPI, 'cli', 3))
    {
      $format = 'txt';
    }

    $template = $this->container->getTemplatingService()->getLoader()->load($template, array(
      'bundle'     => 'WebBundle',
      'controller' => 'Exception',
      'format'     => '.'.$format,
    ));

    if (false === $template)
    {
      throw new \InvalidArgumentException(sprintf('The exception template for format "%s" does not exist.', $format));
    }

    $code      = $exception instanceof HttpException ? $exception->getCode() : 500;
    $text      = Response::$statusTexts[$code];
    $formatter = new ExceptionFormatter($this->container);
    $message   = null === $exception->getMessage() ? 'n/a' : $exception->getMessage();
    $name      = get_class($exception);
    $traces    = $formatter->getTraces($exception, 'html' === $format ? 'html' : 'text');
    $charset   = $this->container->getParameter('kernel.charset');

    $errors = 0;
    foreach ($logs as $log)
    {
      if ('ERR' === $log['priorityName'])
      {
        ++$errors;
      }
    }

    $currentContent = '';
    while (false !== $content = ob_get_clean()) { $currentContent .= $content; }

    ob_start();
    require $template;
    $content = ob_get_clean();

    $response = $this->container->getResponseService();
    $response->setStatusCode($code);
    $response->setContent($content);

    return $response;
  }
}