[client] Enhance the generate bundle function to be used everywhere

Author: SamuelHassine

pycti/connector/opencti_connector_helper.py

@@ -18,6 +18,7 @@
 from typing import Callable, Dict, List, Optional, Union
 
 import pika
+import stix2.utils
 from filigran_sseclient import SSEClient
 from pika.adapters.asyncio_connection import AsyncioConnection
 from pika.exceptions import NackError, UnroutableError
@@ -1221,6 +1222,11 @@ def stix2_create_bundle(items) -> Optional[str]:
         :rtype:
         """
 
+        # Check if item are native STIX 2 lib
+        for i in range(len(items)):
+            if hasattr(items[i], "serialize"):
+                items[i] = json.loads(items[i].serialize())
+
         bundle = {
             "type": "bundle",
             "id": f"bundle--{uuid.uuid4()}",