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diff --git a/lib/public/AppFramework/ApiController.php b/lib/public/AppFramework/ApiController.php
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+<?php
+/**
+ * @author Bernhard Posselt <dev@bernhard-posselt.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+/**
+ * Public interface of ownCloud for apps to use.
+ * AppFramework\Controller class
+ */
+
+namespace OCP\AppFramework;
+
+use OCP\AppFramework\Http\Response;
+use OCP\IRequest;
+
+
+/**
+ * Base class to inherit your controllers from that are used for RESTful APIs
+ * @since 7.0.0
+ */
+abstract class ApiController extends Controller {
+
+    private $corsMethods;
+    private $corsAllowedHeaders;
+    private $corsMaxAge;
+
+    /**
+     * constructor of the controller
+     * @param string $appName the name of the app
+     * @param IRequest $request an instance of the request
+     * @param string $corsMethods comma separated string of HTTP verbs which
+     * should be allowed for websites or webapps when calling your API, defaults to
+     * 'PUT, POST, GET, DELETE, PATCH'
+     * @param string $corsAllowedHeaders comma separated string of HTTP headers
+     * which should be allowed for websites or webapps when calling your API,
+     * defaults to 'Authorization, Content-Type, Accept'
+     * @param int $corsMaxAge number in seconds how long a preflighted OPTIONS
+     * request should be cached, defaults to 1728000 seconds
+	 * @since 7.0.0
+     */
+    public function __construct($appName,
+                                IRequest $request,
+                                $corsMethods='PUT, POST, GET, DELETE, PATCH',
+                                $corsAllowedHeaders='Authorization, Content-Type, Accept',
+                                $corsMaxAge=1728000){
+        parent::__construct($appName, $request);
+        $this->corsMethods = $corsMethods;
+        $this->corsAllowedHeaders = $corsAllowedHeaders;
+        $this->corsMaxAge = $corsMaxAge;
+    }
+
+
+    /**
+     * This method implements a preflighted cors response for you that you can
+     * link to for the options request
+     *
+     * @NoAdminRequired
+     * @NoCSRFRequired
+     * @PublicPage
+	 * @since 7.0.0
+     */
+    public function preflightedCors() {
+        if(isset($this->request->server['HTTP_ORIGIN'])) {
+            $origin = $this->request->server['HTTP_ORIGIN'];
+        } else {
+            $origin = '*';
+        }
+
+        $response = new Response();
+        $response->addHeader('Access-Control-Allow-Origin', $origin);
+        $response->addHeader('Access-Control-Allow-Methods', $this->corsMethods);
+        $response->addHeader('Access-Control-Max-Age', $this->corsMaxAge);
+        $response->addHeader('Access-Control-Allow-Headers', $this->corsAllowedHeaders);
+        $response->addHeader('Access-Control-Allow-Credentials', 'false');
+        return $response;
+    }
+
+
+}