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Diffstat (limited to 'synapse/handlers/message.py')
| -rw-r--r-- | synapse/handlers/message.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 708533d4d1..8ddded8389 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -768,6 +768,15 @@ class EventCreationHandler(object): else: prev_event_ids = await self.store.get_prev_events_for_room(builder.room_id) + # we now ought to have some prev_events (unless it's a create event). + # + # do a quick sanity check here, rather than waiting until we've created the + # event and then try to auth it (which fails with a somewhat confusing "No + # create event in auth events") + assert ( + builder.type == EventTypes.Create or len(prev_event_ids) > 0 + ), "Attempting to create an event with no prev_events" + event = await builder.build(prev_event_ids=prev_event_ids) context = await self.state.compute_event_context(event) if requester: |