diff options
Diffstat (limited to 'synapse/storage/databases/main/relations.py')
| -rw-r--r-- | synapse/storage/databases/main/relations.py | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/synapse/storage/databases/main/relations.py b/synapse/storage/databases/main/relations.py index 36aa1092f6..be1500092b 100644 --- a/synapse/storage/databases/main/relations.py +++ b/synapse/storage/databases/main/relations.py @@ -91,10 +91,11 @@ class RelationsWorkerStore(SQLBaseStore): self._msc3440_enabled = hs.config.experimental.msc3440_enabled - @cached(tree=True) + @cached(uncached_args=("event",), tree=True) async def get_relations_for_event( self, event_id: str, + event: EventBase, room_id: str, relation_type: Optional[str] = None, event_type: Optional[str] = None, @@ -108,6 +109,7 @@ class RelationsWorkerStore(SQLBaseStore): Args: event_id: Fetch events that relate to this event ID. + event: The matching EventBase to event_id. room_id: The room the event belongs to. relation_type: Only fetch events with this relation type, if given. event_type: Only fetch events with this event type, if given. @@ -122,9 +124,13 @@ class RelationsWorkerStore(SQLBaseStore): List of event IDs that match relations requested. The rows are of the form `{"event_id": "..."}`. """ + # We don't use `event_id`, it's there so that we can cache based on + # it. The `event_id` must match the `event.event_id`. + assert event.event_id == event_id where_clause = ["relates_to_id = ?", "room_id = ?"] - where_args: List[Union[str, int]] = [event_id, room_id] + where_args: List[Union[str, int]] = [event.event_id, room_id] + is_redacted = event.internal_metadata.is_redacted() if relation_type is not None: where_clause.append("relation_type = ?") @@ -157,7 +163,7 @@ class RelationsWorkerStore(SQLBaseStore): order = "ASC" sql = """ - SELECT event_id, topological_ordering, stream_ordering + SELECT event_id, relation_type, topological_ordering, stream_ordering FROM event_relations INNER JOIN events USING (event_id) WHERE %s @@ -178,9 +184,12 @@ class RelationsWorkerStore(SQLBaseStore): last_stream_id = None events = [] for row in txn: - events.append({"event_id": row[0]}) - last_topo_id = row[1] - last_stream_id = row[2] + # Do not include edits for redacted events as they leak event + # content. + if not is_redacted or row[1] != RelationTypes.REPLACE: + events.append({"event_id": row[0]}) + last_topo_id = row[2] + last_stream_id = row[3] # If there are more events, generate the next pagination key. next_token = None @@ -776,7 +785,7 @@ class RelationsWorkerStore(SQLBaseStore): ) references = await self.get_relations_for_event( - event_id, room_id, RelationTypes.REFERENCE, direction="f" + event_id, event, room_id, RelationTypes.REFERENCE, direction="f" ) if references.chunk: aggregations.references = await references.to_dict(cast("DataStore", self)) @@ -797,41 +806,36 @@ class RelationsWorkerStore(SQLBaseStore): A map of event ID to the bundled aggregation for the event. Not all events may have bundled aggregations in the results. """ - # The already processed event IDs. Tracked separately from the result - # since the result omits events which do not have bundled aggregations. - seen_event_ids = set() - - # State events and redacted events do not get bundled aggregations. - events = [ - event - for event in events - if not event.is_state() and not event.internal_metadata.is_redacted() - ] + # De-duplicate events by ID to handle the same event requested multiple times. + # + # State events do not get bundled aggregations. + events_by_id = { + event.event_id: event for event in events if not event.is_state() + } # event ID -> bundled aggregation in non-serialized form. results: Dict[str, BundledAggregations] = {} # Fetch other relations per event. - for event in events: - # De-duplicate events by ID to handle the same event requested multiple - # times. The caches that _get_bundled_aggregation_for_event use should - # capture this, but best to reduce work. - if event.event_id in seen_event_ids: - continue - seen_event_ids.add(event.event_id) - + for event in events_by_id.values(): event_result = await self._get_bundled_aggregation_for_event(event, user_id) if event_result: results[event.event_id] = event_result - # Fetch any edits. - edits = await self._get_applicable_edits(seen_event_ids) + # Fetch any edits (but not for redacted events). + edits = await self._get_applicable_edits( + [ + event_id + for event_id, event in events_by_id.items() + if not event.internal_metadata.is_redacted() + ] + ) for event_id, edit in edits.items(): results.setdefault(event_id, BundledAggregations()).replace = edit # Fetch thread summaries. if self._msc3440_enabled: - summaries = await self._get_thread_summaries(seen_event_ids) + summaries = await self._get_thread_summaries(events_by_id.keys()) # Only fetch participated for a limited selection based on what had # summaries. participated = await self._get_threads_participated( |