Add toggle to read/write perms on access control

backend/open_webui/routers/knowledge.py

@@ -213,8 +213,8 @@ async def update_knowledge_by_id(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail=ERROR_MESSAGES.NOT_FOUND,
         )
-
-    if knowledge.user_id != user.id and user.role != "admin":
+    # Is the user the original creator, in a group with write access, or an admin
+    if knowledge.user_id != user.id and not has_access(user.id, "write", knowledge.access_control) and user.role != "admin":
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail=ERROR_MESSAGES.ACCESS_PROHIBITED,