N°8771 - Add Symfony form component to iTop core (#760)

- Add Symfony Form Component
- Add Symfony CSRF security component
- Add iTop default form template
- Add Twig debug extension to Twig Environment
- Add iTop abstract controller facility to get form builder
- Add Twig filter to make trans an alias of dict_s filter

lib/symfony/form/Extension/Csrf/CsrfExtension.php

@@ -0,0 +1,42 @@
+<?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\Form\Extension\Csrf;
+
+use Symfony\Component\Form\AbstractExtension;
+use Symfony\Component\Security\Csrf\CsrfTokenManagerInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+/**
+ * This extension protects forms by using a CSRF token.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class CsrfExtension extends AbstractExtension
+{
+    private CsrfTokenManagerInterface $tokenManager;
+    private ?TranslatorInterface $translator;
+    private ?string $translationDomain;
+
+    public function __construct(CsrfTokenManagerInterface $tokenManager, ?TranslatorInterface $translator = null, ?string $translationDomain = null)
+    {
+        $this->tokenManager = $tokenManager;
+        $this->translator = $translator;
+        $this->translationDomain = $translationDomain;
+    }
+
+    protected function loadTypeExtensions(): array
+    {
+        return [
+            new Type\FormTypeCsrfExtension($this->tokenManager, true, '_token', $this->translator, $this->translationDomain),
+        ];
+    }
+}