Allow to restrict the file extensions for a attachment type.

src/Form/AdminPages/AttachmentTypeAdminForm.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ *
+ * part-db version 0.1
+ * Copyright (C) 2005 Christoph Lechner
+ * http://www.cl-projects.de/
+ *
+ * part-db version 0.2+
+ * Copyright (C) 2009 K. Jacobs and others (see authors.php)
+ * http://code.google.com/p/part-db/
+ *
+ * Part-DB Version 0.4+
+ * Copyright (C) 2016 - 2019 Jan Böhmer
+ * https://github.com/jbtronics
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ *
+ */
+
+namespace App\Form\AdminPages;
+
+
+use App\Entity\Base\NamedDBElement;
+use App\Form\AdminPages\BaseEntityAdminForm;
+use App\Services\Attachments\FileTypeFilterTools;
+use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
+use Symfony\Component\Form\CallbackTransformer;
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Security\Core\Security;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+class AttachmentTypeAdminForm extends BaseEntityAdminForm
+{
+    protected $filterTools;
+
+    public function __construct(Security $security, ParameterBagInterface $params, TranslatorInterface $trans, FileTypeFilterTools $filterTools)
+    {
+        $this->filterTools = $filterTools;
+        parent::__construct($security, $params, $trans);
+    }
+
+    protected function additionalFormElements(FormBuilderInterface $builder, array $options, NamedDBElement $entity)
+    {
+        $is_new = $entity->getID() === null;
+
+        $builder->add('filetype_filter', TextType::class, ['required' => false,
+            'label' =>  $this->trans->trans('attachment_type.edit.filetype_filter'),
+            'help' =>  $this->trans->trans('attachment_type.edit.filetype_filter.help'),
+            'attr' => ['placeholder' => $this->trans->trans('attachment_type.edit.filetype_filter.placeholder')],
+            'empty_data' => '',
+            'disabled' => !$this->security->isGranted($is_new ? 'create' : 'edit', $entity)]);
+
+        //Normalize data before writing it to database
+        $builder->get('filetype_filter')->addViewTransformer(new CallbackTransformer(
+            function ($value) {
+                return $value;
+            },
+            function ($value) {
+                return $this->filterTools->normalizeFilterString($value);
+            }
+        ));
+    }
+}

src/Form/AttachmentFormType.php

@@ -37,6 +37,7 @@ use App\Entity\Attachments\AttachmentType;
 use App\Entity\Base\StructuralDBElement;
 use App\Form\Type\StructuralEntityType;
 use App\Services\Attachments\AttachmentManager;
+use App\Validator\Constraints\AllowedFileExtension;
 use App\Validator\Constraints\UrlOrBuiltin;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
@@ -120,9 +121,10 @@ class AttachmentFormType extends AbstractType
             'required' => false,
             'attr' => ['class' => 'file', 'data-show-preview' => 'false', 'data-show-upload' => 'false'],
             'constraints' => [
+                new AllowedFileExtension(),
                 new File([
                     'maxSize' => $options['max_file_size']
-                ])
+                ]),
             ]
         ]);