Version 1

[yaffs-website] / vendor / symfony / http-kernel / EventListener / ExceptionListener.php

diff --git a/vendor/symfony/http-kernel/EventListener/ExceptionListener.php b/vendor/symfony/http-kernel/EventListener/ExceptionListener.php
new file mode 100644 (file)
index 0000000..1c50ef4
--- /dev/null
+++ b/vendor/symfony/http-kernel/EventListener/ExceptionListener.php
@@ -0,0 +1,120 @@
+<?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\Debug\Exception\FlattenException;
+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\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)
+    {
+        $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, false);
+        } catch (\Exception $e) {
+            $this->logException($e, sprintf('Exception thrown when handling an exception (%s: %s at %s line %s)', get_class($e), $e->getMessage(), $e->getFile(), $e->getLine()));
+
+            $wrapper = $e;
+
+            while ($prev = $wrapper->getPrevious()) {
+                if ($exception === $wrapper = $prev) {
+                    throw $e;
+                }
+            }
+
+            $prev = new \ReflectionProperty('Exception', 'previous');
+            $prev->setAccessible(true);
+            $prev->setValue($wrapper, $exception);
+
+            throw $e;
+        }
+
+        $event->setResponse($response);
+    }
+
+    public static function getSubscribedEvents()
+    {
+        return array(
+            KernelEvents::EXCEPTION => array('onKernelException', -128),
+        );
+    }
+
+    /**
+     * Logs an exception.
+     *
+     * @param \Exception $exception The \Exception instance
+     * @param string     $message   The error message to log
+     */
+    protected function logException(\Exception $exception, $message)
+    {
+        if (null !== $this->logger) {
+            if (!$exception instanceof HttpExceptionInterface || $exception->getStatusCode() >= 500) {
+                $this->logger->critical($message, array('exception' => $exception));
+            } else {
+                $this->logger->error($message, array('exception' => $exception));
+            }
+        }
+    }
+
+    /**
+     * 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 since version 2.4, to be removed in 3.0
+            'format' => $request->getRequestFormat(),
+        );
+        $request = $request->duplicate(null, null, $attributes);
+        $request->setMethod('GET');
+
+        return $request;
+    }
+}