Expose share owner is and display name via files webdav

apps/dav/lib/connector/sabre/node.php

@@ -238,6 +238,10 @@ public function getDavPermissions() {
 		return $p;
 	}
 
+	public function getOwner() {
+		return $this->fileView->getOwner($this->path);
+	}
+
 	protected function verifyPath() {
 		try {
 			$fileName = basename($this->info->getPath());

apps/dav/lib/connector/sabre/serverfactory.php

@@ -95,6 +95,7 @@ public function createServer($baseUri, $requestUri, BackendInterface $authBacken
 
 			if($this->userSession->isLoggedIn()) {
 				$server->addPlugin(new \OCA\DAV\Connector\Sabre\TagsPlugin($objectTree, $this->tagManager));
+				$server->addPlugin(new \OCA\DAV\Connector\Sabre\SharesPlugin($objectTree));
 				// custom properties plugin must be the last one
 				$server->addPlugin(
 					new \Sabre\DAV\PropertyStorage\Plugin(

apps/dav/lib/connector/sabre/sharesplugin.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * @author Vincent Petry <pvince81@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 OCA\DAV\Connector\Sabre;
+
+use \Sabre\DAV\PropFind;
+use \Sabre\DAV\PropPatch;
+
+class SharesPlugin extends \Sabre\DAV\ServerPlugin
+{
+
+	// namespace
+	const NS_OWNCLOUD = 'http://owncloud.org/ns';
+	const SHARE_OWNER_ID_PROPERTYNAME = '{http://owncloud.org/ns}share-owner-id';
+	const SHARE_OWNER_DISPLAY_NAME_PROPERTYNAME = '{http://owncloud.org/ns}share-owner-display-name';
+
+	/**
+	 * Reference to main server object
+	 *
+	 * @var \Sabre\DAV\Server
+	 */
+	private $server;
+
+	/**
+	 * @var \Sabre\DAV\Tree
+	 */
+	private $tree;
+
+	/**
+	 * @param \Sabre\DAV\Tree $tree tree
+	 */
+	public function __construct(\Sabre\DAV\Tree $tree) {
+		$this->tree = $tree;
+	}
+
+	/**
+	 * This initializes the plugin.
+	 *
+	 * This function is called by \Sabre\DAV\Server, after
+	 * addPlugin is called.
+	 *
+	 * This method should set up the required event subscriptions.
+	 *
+	 * @param \Sabre\DAV\Server $server
+	 * @return void
+	 */
+	public function initialize(\Sabre\DAV\Server $server) {
+
+		$server->xmlNamespaces[self::NS_OWNCLOUD] = 'oc';
+
+		$this->server = $server;
+		$this->server->on('propFind', array($this, 'handleGetProperties'));
+	}
+
+	/**
+	 * Adds share owner to the response, if requested
+	 *
+	 * @param PropFind $propFind
+	 * @param \Sabre\DAV\INode $node
+	 * @return void
+	 */
+	public function handleGetProperties(
+		PropFind $propFind,
+		\Sabre\DAV\INode $node
+	) {
+		if (!($node instanceof \OCA\DAV\Connector\Sabre\Node)) {
+			return;
+		}
+
+		$propFind->handle(self::SHARE_OWNER_ID_PROPERTYNAME, function() use ($node) {
+			$owner = $node->getOwner();
+			return $owner;
+		});
+		$propFind->handle(self::SHARE_OWNER_DISPLAY_NAME_PROPERTYNAME, function() use ($node) {
+			$owner = $node->getOwner();
+			$displayName = \OC_User::getDisplayName($owner);
+			return $displayName;
+		});
+	}
+}