diff options
| -rw-r--r-- | changelog.d/8041.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 9 | ||||
| -rw-r--r-- | tests/storage/test_redaction.py | 4 |
3 files changed, 14 insertions, 0 deletions
diff --git a/changelog.d/8041.misc b/changelog.d/8041.misc new file mode 100644 index 0000000000..eefa98d744 --- /dev/null +++ b/changelog.d/8041.misc @@ -0,0 +1 @@ +Add an assertion on prev_events in create_new_client_event. 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: diff --git a/tests/storage/test_redaction.py b/tests/storage/test_redaction.py index 41511d479f..1ea35d60c1 100644 --- a/tests/storage/test_redaction.py +++ b/tests/storage/test_redaction.py @@ -251,6 +251,10 @@ class RedactionTestCase(unittest.HomeserverTestCase): def room_id(self): return self._base_builder.room_id + @property + def type(self): + return self._base_builder.type + event_1, context_1 = self.get_success( self.event_creation_handler.create_new_client_event( EventIdManglingBuilder( |