N°2435.1 Portal: Split portal composer.json in 2

- Autoloader for portal files in the itop-portal-base module
- Dependencies moved to root composer.json
- Add autoloader for /core and /application content

lib/symfony/twig-bundle/Controller/PreviewErrorController.php

@@ -0,0 +1,56 @@
+<?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\Bundle\TwigBundle\Controller;
+
+use Symfony\Component\Debug\Exception\FlattenException;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\HttpKernelInterface;
+
+/**
+ * PreviewErrorController can be used to test error pages.
+ *
+ * It will create a test exception and forward it to another controller.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class PreviewErrorController
+{
+    protected $kernel;
+    protected $controller;
+
+    public function __construct(HttpKernelInterface $kernel, $controller)
+    {
+        $this->kernel = $kernel;
+        $this->controller = $controller;
+    }
+
+    public function previewErrorPageAction(Request $request, $code)
+    {
+        $exception = FlattenException::create(new \Exception('Something has intentionally gone wrong.'), $code);
+
+        /*
+         * This Request mimics the parameters set by
+         * \Symfony\Component\HttpKernel\EventListener\ExceptionListener::duplicateRequest, with
+         * the additional "showException" flag.
+         */
+
+        $subRequest = $request->duplicate(null, null, [
+            '_controller' => $this->controller,
+            'exception' => $exception,
+            'logger' => null,
+            'format' => $request->getRequestFormat(),
+            'showException' => false,
+        ]);
+
+        return $this->kernel->handle($subRequest, HttpKernelInterface::SUB_REQUEST);
+    }
+}