diff options
Diffstat (limited to 'synapse/handlers/relations.py')
| -rw-r--r-- | synapse/handlers/relations.py | 128 |
1 files changed, 59 insertions, 69 deletions
diff --git a/synapse/handlers/relations.py b/synapse/handlers/relations.py index ca94239f61..8414be5879 100644 --- a/synapse/handlers/relations.py +++ b/synapse/handlers/relations.py @@ -13,16 +13,7 @@ # limitations under the License. import enum import logging -from typing import ( - TYPE_CHECKING, - Collection, - Dict, - FrozenSet, - Iterable, - List, - Optional, - Tuple, -) +from typing import TYPE_CHECKING, Collection, Dict, FrozenSet, Iterable, List, Optional import attr @@ -32,7 +23,7 @@ from synapse.events import EventBase, relation_from_event from synapse.logging.opentracing import trace from synapse.storage.databases.main.relations import ThreadsNextBatch, _RelatedEvent from synapse.streams.config import PaginationConfig -from synapse.types import JsonDict, Requester, StreamToken, UserID +from synapse.types import JsonDict, Requester, UserID from synapse.visibility import filter_events_for_client if TYPE_CHECKING: @@ -181,40 +172,6 @@ class RelationsHandler: return return_value - async def get_relations_for_event( - self, - event_id: str, - event: EventBase, - room_id: str, - relation_type: str, - ignored_users: FrozenSet[str] = frozenset(), - ) -> Tuple[List[_RelatedEvent], Optional[StreamToken]]: - """Get a list of events which relate to an event, ordered by topological ordering. - - 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: The type of relation. - ignored_users: The users ignored by the requesting user. - - Returns: - List of event IDs that match relations requested. The rows are of - the form `{"event_id": "..."}`. - """ - - # Call the underlying storage method, which is cached. - related_events, next_token = await self._main_store.get_relations_for_event( - event_id, event, room_id, relation_type, direction="f" - ) - - # Filter out ignored users and convert to the expected format. - related_events = [ - event for event in related_events if event.sender not in ignored_users - ] - - return related_events, next_token - async def redact_events_related_to( self, requester: Requester, @@ -329,6 +286,46 @@ class RelationsHandler: return filtered_results + async def get_references_for_events( + self, event_ids: Collection[str], ignored_users: FrozenSet[str] = frozenset() + ) -> Dict[str, List[_RelatedEvent]]: + """Get a list of references to the given events. + + Args: + event_ids: Fetch events that relate to this event ID. + ignored_users: The users ignored by the requesting user. + + Returns: + A map of event IDs to a list related events. + """ + + related_events = await self._main_store.get_references_for_events(event_ids) + + # Avoid additional logic if there are no ignored users. + if not ignored_users: + return { + event_id: results + for event_id, results in related_events.items() + if results + } + + # Filter out ignored users. + results = {} + for event_id, events in related_events.items(): + # If no references, skip. + if not events: + continue + + # Filter ignored users out. + events = [event for event in events if event.sender not in ignored_users] + # If there are no events left, skip this event. + if not events: + continue + + results[event_id] = events + + return results + async def _get_threads_for_events( self, events_by_id: Dict[str, EventBase], @@ -412,14 +409,18 @@ class RelationsHandler: if event is None: continue - potential_events, _ = await self.get_relations_for_event( - event_id, - event, - room_id, - RelationTypes.THREAD, - ignored_users, + # Attempt to find another event to use as the latest event. + potential_events, _ = await self._main_store.get_relations_for_event( + event_id, event, room_id, RelationTypes.THREAD, direction="f" ) + # Filter out ignored users. + potential_events = [ + event + for event in potential_events + if event.sender not in ignored_users + ] + # If all found events are from ignored users, do not include # a summary of the thread. if not potential_events: @@ -534,27 +535,16 @@ class RelationsHandler: "chunk": annotations } - # Fetch other relations per event. - for event in events_by_id.values(): - # Fetch any references to bundle with this event. - references, next_token = await self.get_relations_for_event( - event.event_id, - event, - event.room_id, - RelationTypes.REFERENCE, - ignored_users=ignored_users, - ) + # Fetch any references to bundle with this event. + references_by_event_id = await self.get_references_for_events( + events_by_id.keys(), ignored_users=ignored_users + ) + for event_id, references in references_by_event_id.items(): if references: - aggregations = results.setdefault(event.event_id, BundledAggregations()) - aggregations.references = { + results.setdefault(event_id, BundledAggregations()).references = { "chunk": [{"event_id": ev.event_id} for ev in references] } - if next_token: - aggregations.references["next_batch"] = await next_token.to_string( - self._main_store - ) - # Fetch any edits (but not for redacted events). # # Note that there is no use in limiting edits by ignored users since the @@ -600,7 +590,7 @@ class RelationsHandler: room_id, requester, allow_departed_users=True ) - # Note that ignored users are not passed into get_relations_for_event + # Note that ignored users are not passed into get_threads # below. Ignored users are handled in filter_events_for_client (and by # not passing them in here we should get a better cache hit rate). thread_roots, next_batch = await self._main_store.get_threads( |