Current File : //opt/alt/php55/usr/share/pear/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpKernel\EventListener;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Log\DebugLoggerInterface;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\Exception\FlattenException;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* ExceptionListener.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ExceptionListener implements EventSubscriberInterface
{
protected $controller;
protected $logger;
public function __construct($controller, LoggerInterface $logger = null)
{
$this->controller = $controller;
$this->logger = $logger;
}
public function onKernelException(GetResponseForExceptionEvent $event)
{
static $handling;
if (true === $handling) {
return false;
}
$handling = true;
$exception = $event->getException();
$request = $event->getRequest();
$this->logException($exception, sprintf('Uncaught PHP Exception %s: "%s" at %s line %s', get_class($exception), $exception->getMessage(), $exception->getFile(), $exception->getLine()));
$request = $this->duplicateRequest($exception, $request);
try {
$response = $event->getKernel()->handle($request, HttpKernelInterface::SUB_REQUEST, true);
} catch (\Exception $e) {
$this->logException($exception, sprintf('Exception thrown when handling an exception (%s: %s)', get_class($e), $e->getMessage()), false);
// set handling to false otherwise it wont be able to handle further more
$handling = false;
// re-throw the exception from within HttpKernel as this is a catch-all
return;
}
$event->setResponse($response);
$handling = false;
}
public static function getSubscribedEvents()
{
return array(
KernelEvents::EXCEPTION => array('onKernelException', -128),
);
}
/**
* Logs an exception.
*
* @param \Exception $exception The original \Exception instance
* @param string $message The error message to log
* @param Boolean $original False when the handling of the exception thrown another exception
*/
protected function logException(\Exception $exception, $message, $original = true)
{
$isCritical = !$exception instanceof HttpExceptionInterface || $exception->getStatusCode() >= 500;
$context = array('exception' => $exception);
if (null !== $this->logger) {
if ($isCritical) {
$this->logger->critical($message, $context);
} else {
$this->logger->error($message, $context);
}
} elseif (!$original || $isCritical) {
error_log($message);
}
}
/**
* Clones the request for the exception.
*
* @param \Exception $exception The thrown exception.
* @param Request $request The original request.
*
* @return Request $request The cloned request.
*/
protected function duplicateRequest(\Exception $exception, Request $request)
{
$attributes = array(
'_controller' => $this->controller,
'exception' => FlattenException::create($exception),
'logger' => $this->logger instanceof DebugLoggerInterface ? $this->logger : null,
// keep for BC -- as $format can be an argument of the controller callable
// see src/Symfony/Bundle/TwigBundle/Controller/ExceptionController.php
// @deprecated in 2.4, to be removed in 3.0
'format' => $request->getRequestFormat(),
);
$request = $request->duplicate(null, null, $attributes);
$request->setMethod('GET');
return $request;
}
}
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