Allow listeners to set status code and message

lib/private/connector/sabre/listenerplugin.php

@@ -21,6 +21,9 @@
 
 namespace OC\Connector\Sabre;
 
+use OCP\AppFramework\Http;
+use OCP\SabrePluginEvent;
+use OCP\SabrePluginException;
 use Sabre\DAV\ServerPlugin;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
@@ -49,9 +52,16 @@ class ListenerPlugin extends ServerPlugin {
 	 * in case the system is in maintenance mode.
 	 *
 	 * @return bool
+	 * @throws \Exception
 	 */
 	public function emitListener() {
-		$this->dispatcher->dispatch('OC\Connector\Sabre::beforeMethod');
+		$event = new SabrePluginEvent();
+
+		$this->dispatcher->dispatch('OC\Connector\Sabre::beforeMethod', $event);
+
+		if ($event->getStatusCode() !== Http::STATUS_OK) {
+			throw new SabrePluginException($event->getMessage(), $event->getStatusCode());
+		}
 
 		return true;
 	}

lib/public/sabrepluginevent.php

@@ -0,0 +1,72 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, 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/>
+ *
+ */
+
+namespace OCP;
+
+
+use OCP\AppFramework\Http;
+use Symfony\Component\EventDispatcher\Event;
+
+class SabrePluginEvent extends Event {
+
+	/** @var int */
+	protected $statusCode;
+
+	/** @var string */
+	protected $message;
+
+	public function __construct() {
+		$this->message = '';
+		$this->statusCode = Http::STATUS_OK;
+	}
+
+	/**
+	 * @param int $statusCode
+	 * @return self
+	 */
+	public function setStatusCode($statusCode) {
+		$this->statusCode = (int) $statusCode;
+		return $this;
+	}
+
+	/**
+	 * @param string $message
+	 * @return self
+	 */
+	public function setMessage($message) {
+		$this->message = (string) $message;
+		return $this;
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getStatusCode() {
+		return $this->statusCode;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getMessage() {
+		return $this->message;
+	}
+}

lib/public/sabrepluginexception.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, 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/>
+ *
+ */
+
+namespace OCP;
+
+
+use Sabre\DAV\Exception;
+
+class SabrePluginException extends Exception {
+
+	/**
+	 * Returns the HTTP statuscode for this exception
+	 *
+	 * @return int
+	 */
+	public function getHTTPCode() {
+		return $this->code;
+	}
+}