diff options
| -rw-r--r-- | changelog.d/13813.bugfix | 1 | ||||
| -rw-r--r-- | synapse/federation/sender/__init__.py | 29 | ||||
| -rw-r--r-- | synapse/handlers/appservice.py | 9 | ||||
| -rw-r--r-- | synapse/storage/databases/main/events_worker.py | 15 | ||||
| -rw-r--r-- | synapse/storage/databases/main/stream.py | 28 | ||||
| -rw-r--r-- | tests/handlers/test_appservice.py | 18 |
6 files changed, 62 insertions, 38 deletions
diff --git a/changelog.d/13813.bugfix b/changelog.d/13813.bugfix new file mode 100644 index 0000000000..23388788ff --- /dev/null +++ b/changelog.d/13813.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug where redactions were not being sent over federation if we did not have the original event. diff --git a/synapse/federation/sender/__init__.py b/synapse/federation/sender/__init__.py index a6cb3ba58f..774ecd81b6 100644 --- a/synapse/federation/sender/__init__.py +++ b/synapse/federation/sender/__init__.py @@ -353,21 +353,25 @@ class FederationSender(AbstractFederationSender): last_token = await self.store.get_federation_out_pos("events") ( next_token, - events, event_to_received_ts, - ) = await self.store.get_all_new_events_stream( + ) = await self.store.get_all_new_event_ids_stream( last_token, self._last_poked_id, limit=100 ) + event_ids = event_to_received_ts.keys() + event_entries = await self.store.get_unredacted_events_from_cache_or_db( + event_ids + ) + logger.debug( "Handling %i -> %i: %i events to send (current id %i)", last_token, next_token, - len(events), + len(event_entries), self._last_poked_id, ) - if not events and next_token >= self._last_poked_id: + if not event_entries and next_token >= self._last_poked_id: logger.debug("All events processed") break @@ -508,8 +512,14 @@ class FederationSender(AbstractFederationSender): await handle_event(event) events_by_room: Dict[str, List[EventBase]] = {} - for event in events: - events_by_room.setdefault(event.room_id, []).append(event) + + for event_id in event_ids: + # `event_entries` is unsorted, so we have to iterate over `event_ids` + # to ensure the events are in the right order + event_cache = event_entries.get(event_id) + if event_cache: + event = event_cache.event + events_by_room.setdefault(event.room_id, []).append(event) await make_deferred_yieldable( defer.gatherResults( @@ -524,9 +534,10 @@ class FederationSender(AbstractFederationSender): logger.debug("Successfully handled up to %i", next_token) await self.store.update_federation_out_pos("events", next_token) - if events: + if event_entries: now = self.clock.time_msec() - ts = event_to_received_ts[events[-1].event_id] + last_id = next(reversed(event_ids)) + ts = event_to_received_ts[last_id] assert ts is not None synapse.metrics.event_processing_lag.labels( @@ -536,7 +547,7 @@ class FederationSender(AbstractFederationSender): "federation_sender" ).set(ts) - events_processed_counter.inc(len(events)) + events_processed_counter.inc(len(event_entries)) event_processing_loop_room_count.labels("federation_sender").inc( len(events_by_room) diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py index 203b62e015..66f5b8d108 100644 --- a/synapse/handlers/appservice.py +++ b/synapse/handlers/appservice.py @@ -109,10 +109,13 @@ class ApplicationServicesHandler: last_token = await self.store.get_appservice_last_pos() ( upper_bound, - events, event_to_received_ts, - ) = await self.store.get_all_new_events_stream( - last_token, self.current_max, limit=100, get_prev_content=True + ) = await self.store.get_all_new_event_ids_stream( + last_token, self.current_max, limit=100 + ) + + events = await self.store.get_events_as_list( + event_to_received_ts.keys(), get_prev_content=True ) events_by_room: Dict[str, List[EventBase]] = {} diff --git a/synapse/storage/databases/main/events_worker.py b/synapse/storage/databases/main/events_worker.py index 7cdc9fe98f..d4104462b5 100644 --- a/synapse/storage/databases/main/events_worker.py +++ b/synapse/storage/databases/main/events_worker.py @@ -474,7 +474,7 @@ class EventsWorkerStore(SQLBaseStore): return [] # there may be duplicates so we cast the list to a set - event_entry_map = await self._get_events_from_cache_or_db( + event_entry_map = await self.get_unredacted_events_from_cache_or_db( set(event_ids), allow_rejected=allow_rejected ) @@ -509,7 +509,9 @@ class EventsWorkerStore(SQLBaseStore): continue redacted_event_id = entry.event.redacts - event_map = await self._get_events_from_cache_or_db([redacted_event_id]) + event_map = await self.get_unredacted_events_from_cache_or_db( + [redacted_event_id] + ) original_event_entry = event_map.get(redacted_event_id) if not original_event_entry: # we don't have the redacted event (or it was rejected). @@ -588,11 +590,16 @@ class EventsWorkerStore(SQLBaseStore): return events @cancellable - async def _get_events_from_cache_or_db( - self, event_ids: Iterable[str], allow_rejected: bool = False + async def get_unredacted_events_from_cache_or_db( + self, + event_ids: Iterable[str], + allow_rejected: bool = False, ) -> Dict[str, EventCacheEntry]: """Fetch a bunch of events from the cache or the database. + Note that the events pulled by this function will not have any redactions + applied, and no guarantee is made about the ordering of the events returned. + If events are pulled from the database, they will be cached for future lookups. Unknown events are omitted from the response. diff --git a/synapse/storage/databases/main/stream.py b/synapse/storage/databases/main/stream.py index 530f04e149..ffeb2b3683 100644 --- a/synapse/storage/databases/main/stream.py +++ b/synapse/storage/databases/main/stream.py @@ -1024,28 +1024,31 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): "after": {"event_ids": events_after, "token": end_token}, } - async def get_all_new_events_stream( - self, from_id: int, current_id: int, limit: int, get_prev_content: bool = False - ) -> Tuple[int, List[EventBase], Dict[str, Optional[int]]]: + async def get_all_new_event_ids_stream( + self, + from_id: int, + current_id: int, + limit: int, + ) -> Tuple[int, Dict[str, Optional[int]]]: """Get all new events - Returns all events with from_id < stream_ordering <= current_id. + Returns all event ids with from_id < stream_ordering <= current_id. Args: from_id: the stream_ordering of the last event we processed current_id: the stream_ordering of the most recently processed event limit: the maximum number of events to return - get_prev_content: whether to fetch previous event content Returns: - A tuple of (next_id, events, event_to_received_ts), where `next_id` + A tuple of (next_id, event_to_received_ts), where `next_id` is the next value to pass as `from_id` (it will either be the stream_ordering of the last returned event, or, if fewer than `limit` events were found, the `current_id`). The `event_to_received_ts` is - a dictionary mapping event ID to the event `received_ts`. + a dictionary mapping event ID to the event `received_ts`, sorted by ascending + stream_ordering. """ - def get_all_new_events_stream_txn( + def get_all_new_event_ids_stream_txn( txn: LoggingTransaction, ) -> Tuple[int, Dict[str, Optional[int]]]: sql = ( @@ -1070,15 +1073,10 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): return upper_bound, event_to_received_ts upper_bound, event_to_received_ts = await self.db_pool.runInteraction( - "get_all_new_events_stream", get_all_new_events_stream_txn - ) - - events = await self.get_events_as_list( - event_to_received_ts.keys(), - get_prev_content=get_prev_content, + "get_all_new_event_ids_stream", get_all_new_event_ids_stream_txn ) - return upper_bound, events, event_to_received_ts + return upper_bound, event_to_received_ts async def get_federation_out_pos(self, typ: str) -> int: if self._need_to_reset_federation_stream_positions: diff --git a/tests/handlers/test_appservice.py b/tests/handlers/test_appservice.py index af24c4984d..7e4570f990 100644 --- a/tests/handlers/test_appservice.py +++ b/tests/handlers/test_appservice.py @@ -76,9 +76,13 @@ class AppServiceHandlerTestCase(unittest.TestCase): event = Mock( sender="@someone:anywhere", type="m.room.message", room_id="!foo:bar" ) - self.mock_store.get_all_new_events_stream.side_effect = [ - make_awaitable((0, [], {})), - make_awaitable((1, [event], {event.event_id: 0})), + self.mock_store.get_all_new_event_ids_stream.side_effect = [ + make_awaitable((0, {})), + make_awaitable((1, {event.event_id: 0})), + ] + self.mock_store.get_events_as_list.side_effect = [ + make_awaitable([]), + make_awaitable([event]), ] self.handler.notify_interested_services(RoomStreamToken(None, 1)) @@ -95,10 +99,10 @@ class AppServiceHandlerTestCase(unittest.TestCase): event = Mock(sender=user_id, type="m.room.message", room_id="!foo:bar") self.mock_as_api.query_user.return_value = make_awaitable(True) - self.mock_store.get_all_new_events_stream.side_effect = [ - make_awaitable((0, [event], {event.event_id: 0})), + self.mock_store.get_all_new_event_ids_stream.side_effect = [ + make_awaitable((0, {event.event_id: 0})), ] - + self.mock_store.get_events_as_list.side_effect = [make_awaitable([event])] self.handler.notify_interested_services(RoomStreamToken(None, 0)) self.mock_as_api.query_user.assert_called_once_with(services[0], user_id) @@ -112,7 +116,7 @@ class AppServiceHandlerTestCase(unittest.TestCase): event = Mock(sender=user_id, type="m.room.message", room_id="!foo:bar") self.mock_as_api.query_user.return_value = make_awaitable(True) - self.mock_store.get_all_new_events_stream.side_effect = [ + self.mock_store.get_all_new_event_ids_stream.side_effect = [ make_awaitable((0, [event], {event.event_id: 0})), ] |