Allow to download and view attachments via part info page.

src/Controller/AttachmentFileController.php

@@ -0,0 +1,101 @@
+<?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\Controller;
+
+
+use App\Entity\Attachment;
+use App\Services\AttachmentHelper;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\BinaryFileResponse;
+use Symfony\Component\HttpFoundation\ResponseHeaderBag;
+use Symfony\Component\Routing\Annotation\Route;
+
+class AttachmentFileController extends AbstractController
+{
+
+    /**
+     * Download the selected attachment
+     *
+     * @Route("/attachment/{id}/download", name="attachment_download")
+     * @param Attachment $attachment
+     */
+    public function download(Attachment $attachment, AttachmentHelper $helper)
+    {
+        $this->denyAccessUnlessGranted("read", $attachment);
+
+        if ($attachment->isExternal()) {
+            throw new \Exception("You can not download external attachments!");
+        }
+
+        if (!$helper->isFileExisting($attachment)) {
+            throw new \Exception("The file associated with the attachment is not existing!");
+        }
+
+
+        $file_path = $helper->toAbsoluteFilePath($attachment);
+        $response = new BinaryFileResponse($file_path);
+
+        //Set header content disposition, so that the file will be downloaded
+        $response->setContentDisposition(ResponseHeaderBag::DISPOSITION_ATTACHMENT);
+
+        return $response;
+    }
+
+    /**
+     * View the attachment
+     *
+     * @Route("/attachment/{id}/view", name="attachment_view")
+     * @param Attachment $attachment
+     */
+    public function view(Attachment $attachment, AttachmentHelper $helper)
+    {
+        $this->denyAccessUnlessGranted("read", $attachment);
+
+        if ($attachment->isExternal()) {
+            throw new \Exception("You can not download external attachments!");
+        }
+
+        if (!$helper->isFileExisting($attachment)) {
+            throw new \Exception("The file associated with the attachment is not existing!");
+        }
+
+
+        $file_path = $helper->toAbsoluteFilePath($attachment);
+        $response = new BinaryFileResponse($file_path);
+
+        //Set header content disposition, so that the file will be downloaded
+        $response->setContentDisposition(ResponseHeaderBag::DISPOSITION_INLINE);
+
+        return $response;
+    }
+
+}