add optional WebDav propfind properties to show number of folders/files inside a folder

Signed-off-by: Julien Veyssier <eneiluj@posteo.net>

Author: Julien Veyssier

apps/dav/lib/Connector/Sabre/FilesPlugin.php

@@ -63,6 +63,8 @@ class FilesPlugin extends ServerPlugin {
 	public const OCM_SHARE_PERMISSIONS_PROPERTYNAME = '{http://open-cloud-mesh.org/ns}share-permissions';
 	public const DOWNLOADURL_PROPERTYNAME = '{http://owncloud.org/ns}downloadURL';
 	public const SIZE_PROPERTYNAME = '{http://owncloud.org/ns}size';
+	public const SUBFOLDER_COUNT_PROPERTYNAME = '{http://owncloud.org/ns}subfolders';
+	public const SUBFILE_COUNT_PROPERTYNAME = '{http://owncloud.org/ns}subfiles';
 	public const GETETAG_PROPERTYNAME = '{DAV:}getetag';
 	public const LASTMODIFIED_PROPERTYNAME = '{DAV:}lastmodified';
 	public const CREATIONDATE_PROPERTYNAME = '{DAV:}creationdate';
@@ -443,6 +445,25 @@ public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node)
 			$propFind->handle(self::IS_ENCRYPTED_PROPERTYNAME, function () use ($node) {
 				return $node->getFileInfo()->isEncrypted() ? '1' : '0';
 			});
+
+			$propFind->handle(self::SUBFOLDER_COUNT_PROPERTYNAME, function () use ($node) {
+				$nbFolders = 0;
+				foreach ($node->getChildren() as $child) {
+					if ($child instanceof Directory) {
+						$nbFolders++;
+					}
+				}
+				return $nbFolders;
+			});
+			$propFind->handle(self::SUBFILE_COUNT_PROPERTYNAME, function () use ($node) {
+				$nbFiles = 0;
+				foreach ($node->getChildren() as $child) {
+					if ($child instanceof File) {
+						$nbFiles++;
+					}
+				}
+				return $nbFiles;
+			});
 		}
 	}