further work on export favorites as playlist

lib/Controller/ExportController.php

@@ -24,11 +24,11 @@
 namespace OCA\Radio\Controller;
 
 use OC;
+use OCA\Radio\ExportResponse;
 use OCA\Radio\AppInfo\Application;
 use OCA\Radio\Service\FavoriteService;
 use OCP\AppFramework\Controller;
-use OCP\AppFramework\Http\DataResponse; // FIXME: Remove if not required
+use OCP\AppFramework\Http\DataResponse;
-use OCP\AppFramework\Http\Response;
 use OCP\IRequest;
 use SimpleXMLElement;
 
@@ -53,6 +53,7 @@ class ExportController extends Controller {
 	 * @NoAdminRequired
 	 */
 	public function index() {
+
 		$xml = new SimpleXMLElement('<?xml version="1.0"?><playlist></playlist>');
 		$xml->addAttribute('encoding', 'UTF-8');
 		$trackList = $xml->addChild('trackList');
@@ -61,24 +62,8 @@ class ExportController extends Controller {
 		$track->addChild('title', 'Radio Test 404fm');
 		$track->addChild('image', 'http://localhost/favicon.ico');
 
-		$user = OC::$server->getUserSession()->getUser();
+		return new ExportResponse($xml->asXML());
-		if (is_null($user)) {
-			throw new HintException('User not logged in');
-		}
 
-		$userName = $user->getDisplayName();
-		$productName = OC::$server->getThemingDefaults()->getName();
-		$dateTime = OC::$server->getDateTimeFormatter();
-
-		$export_name = '"' . $productName . ' Radio Favorites (' . $userName . ') (' . $dateTime->formatDate(time()) . ').xspf"';
-
-		$response = new Response();
-		$response->addHeader('Content-Type', 'application/xspf+xml');
-		$response->addHeader('Content-Disposition', 'attachment; filename=' . $export_name);
-		$response->render();
-		//return new DataResponse($this->service->findAll($this->userId));
-		return $response;
-		//return $xml->asXML();
 	}
 
 }

lib/ExportResponse.php

@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * Radio App
+ *
+ * @author Jonas Heinrich
+ * @copyright 2021 Jonas Heinrich <onny@project-insanity.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Radio;
+
+use OC;
+use OC\HintException;
+use OCP\AppFramework\Http\Response;
+
+class ExportResponse extends Response {
+	private $returnstring;
+
+	public function __construct($returnstring) {
+		parent::__construct();
+
+		$user = OC::$server->getUserSession()->getUser();
+		if (is_null($user)) {
+			throw new HintException('User not logged in');
+		}
+
+		$userName = $user->getDisplayName();
+		$productName = OC::$server->getThemingDefaults()->getName();
+		$dateTime = OC::$server->getDateTimeFormatter();
+
+		$export_name = '"' . $productName . ' Radio Favorites (' . $userName . ') (' . $dateTime->formatDate(time()) . ').xspf"';
+		$this->addHeader("Cache-Control", "private");
+		$this->addHeader("Content-Type", " application/xspf+xml");
+		$this->addHeader("Content-Length", strlen($returnstring));
+		$this->addHeader("Content-Disposition", "attachment; filename=" . $export_name);
+		$this->returnstring = $returnstring;
+	}
+
+	public function render() {
+		return $this->returnstring;
+	}
+}