fix: ensure options is always an array

Signed-off-by: Daniel Kesselberg <[email protected]>

Author: kesselb

lib/Folder/FolderManager.php

@@ -549,16 +549,33 @@ public function searchUsers(int $id, string $search = '', int $limit = 10, int $
 		return array_values($users);
 	}
 
+	private function getFolderOptions(array $row): array {
+		if (!isset($row['options'])) {
+			return [];
+		}
+
+		try {
+			$options = json_decode($row['options'], true, 512, JSON_THROW_ON_ERROR);
+		} catch (\JsonException $e) {
+			return [];
+		}
+
+		if (!is_array($options)) {
+			return [];
+		}
+
+		return $options;
+	}
+
 	private function rowToFolder(array $row): FolderDefinition {
-		$options = json_decode($row['options'], true);
 		return new FolderDefinition(
 			(int)$row['folder_id'],
 			(string)$row['mount_point'],
 			$this->getRealQuota((int)$row['quota']),
 			(bool)$row['acl'],
 			(int)$row['storage_id'],
 			(int)$row['root_id'],
-			is_array($options) ? $options : [],
+			$this->getFolderOptions($row),
 		);
 	}