Fix: Improve folder creation error handling and sanitize folder names

Signed-off-by: Ahsan Ahmed <ahmedah05@outlook.com>

Author: AhsanIsEpic

lib/Service/GoogleDriveAPIService.php

@@ -540,19 +540,24 @@ private function createDirsUnder(array &$directoriesById, Folder $currentFolder,
 			// create dir if we are on top OR if its parent is current dir
 			if (($currentFolderId === '' && !array_key_exists($parentId, $directoriesById))
 				|| $parentId === $currentFolderId) {
-				$name = $dir['name'];
-				if (!$currentFolder->nodeExists($name)) {
-					$newDir = $currentFolder->newFolder($name);
-				} else {
-					$newDir = $currentFolder->get($name);
-					if (!($newDir instanceof Folder)) {
+				$name = preg_replace('/\/|\n|[^._A-Za-z0-9-]/', '-', $dir['name'] ?? 'Untitled');
+				try {
+					if (!$currentFolder->nodeExists($name)) {
+						$newDir = $currentFolder->newFolder($name);
+					} else {
+						$newDir = $currentFolder->get($name);
+						if (!($newDir instanceof Folder)) {
+							throw new NotFoundException("Node is not a folder: $name");
+						}
+					}
+					$directoriesById[$id]['node'] = $newDir;
+					$success = $this->createDirsUnder($directoriesById, $newDir, $id);
+					if (!$success) {
 						return false;
 					}
-				}
-				$directoriesById[$id]['node'] = $newDir;
-				$success = $this->createDirsUnder($directoriesById, $newDir, $id);
-				if (!$success) {
-					return false;
+				} catch (\Throwable $e) {
+					$this->logger->error("Failed to create folder: $name", ['exception' => $e]);
+					continue; // Skip problematic folder
 				}
 			}
 		}