diff options
Diffstat (limited to 'synapse/events/utils.py')
| -rw-r--r-- | synapse/events/utils.py | 126 |
1 files changed, 37 insertions, 89 deletions
diff --git a/synapse/events/utils.py b/synapse/events/utils.py index 2038e72924..918adeecf8 100644 --- a/synapse/events/utils.py +++ b/synapse/events/utils.py @@ -14,17 +14,7 @@ # limitations under the License. import collections.abc import re -from typing import ( - TYPE_CHECKING, - Any, - Callable, - Dict, - Iterable, - List, - Mapping, - Optional, - Union, -) +from typing import Any, Callable, Dict, Iterable, List, Mapping, Optional, Union from frozendict import frozendict @@ -32,14 +22,10 @@ from synapse.api.constants import EventContentFields, EventTypes, RelationTypes from synapse.api.errors import Codes, SynapseError from synapse.api.room_versions import RoomVersion from synapse.types import JsonDict -from synapse.util.async_helpers import yieldable_gather_results from synapse.util.frozenutils import unfreeze from . import EventBase -if TYPE_CHECKING: - from synapse.server import HomeServer - # Split strings on "." but not "\." This uses a negative lookbehind assertion for '\' # (?<!stuff) matches if the current position in the string is not preceded # by a match for 'stuff'. @@ -385,17 +371,12 @@ class EventClientSerializer: clients. """ - def __init__(self, hs: "HomeServer"): - self.store = hs.get_datastore() - self._msc1849_enabled = hs.config.experimental.msc1849_enabled - self._msc3440_enabled = hs.config.experimental.msc3440_enabled - - async def serialize_event( + def serialize_event( self, event: Union[JsonDict, EventBase], time_now: int, *, - bundle_aggregations: bool = False, + bundle_aggregations: Optional[Dict[str, JsonDict]] = None, **kwargs: Any, ) -> JsonDict: """Serializes a single event. @@ -418,66 +399,41 @@ class EventClientSerializer: serialized_event = serialize_event(event, time_now, **kwargs) # Check if there are any bundled aggregations to include with the event. - # - # Do not bundle aggregations if any of the following at true: - # - # * Support is disabled via the configuration or the caller. - # * The event is a state event. - # * The event has been redacted. - if ( - self._msc1849_enabled - and bundle_aggregations - and not event.is_state() - and not event.internal_metadata.is_redacted() - ): - await self._injected_bundled_aggregations(event, time_now, serialized_event) + if bundle_aggregations: + event_aggregations = bundle_aggregations.get(event.event_id) + if event_aggregations: + self._inject_bundled_aggregations( + event, + time_now, + bundle_aggregations[event.event_id], + serialized_event, + ) return serialized_event - async def _injected_bundled_aggregations( - self, event: EventBase, time_now: int, serialized_event: JsonDict + def _inject_bundled_aggregations( + self, + event: EventBase, + time_now: int, + aggregations: JsonDict, + serialized_event: JsonDict, ) -> None: """Potentially injects bundled aggregations into the unsigned portion of the serialized event. Args: event: The event being serialized. time_now: The current time in milliseconds + aggregations: The bundled aggregation to serialize. serialized_event: The serialized event which may be modified. """ - # Do not bundle aggregations for an event which represents an edit or an - # annotation. It does not make sense for them to have related events. - relates_to = event.content.get("m.relates_to") - if isinstance(relates_to, (dict, frozendict)): - relation_type = relates_to.get("rel_type") - if relation_type in (RelationTypes.ANNOTATION, RelationTypes.REPLACE): - return - - event_id = event.event_id - room_id = event.room_id - - # The bundled aggregations to include. - aggregations = {} - - annotations = await self.store.get_aggregation_groups_for_event( - event_id, room_id - ) - if annotations.chunk: - aggregations[RelationTypes.ANNOTATION] = annotations.to_dict() + # Make a copy in-case the object is cached. + aggregations = aggregations.copy() - references = await self.store.get_relations_for_event( - event_id, room_id, RelationTypes.REFERENCE, direction="f" - ) - if references.chunk: - aggregations[RelationTypes.REFERENCE] = references.to_dict() - - edit = None - if event.type == EventTypes.Message: - edit = await self.store.get_applicable_edit(event_id, room_id) - - if edit: + if RelationTypes.REPLACE in aggregations: # If there is an edit replace the content, preserving existing # relations. + edit = aggregations[RelationTypes.REPLACE] # Ensure we take copies of the edit content, otherwise we risk modifying # the original event. @@ -502,27 +458,19 @@ class EventClientSerializer: } # If this event is the start of a thread, include a summary of the replies. - if self._msc3440_enabled: - ( - thread_count, - latest_thread_event, - ) = await self.store.get_thread_summary(event_id, room_id) - if latest_thread_event: - aggregations[RelationTypes.THREAD] = { - # Don't bundle aggregations as this could recurse forever. - "latest_event": await self.serialize_event( - latest_thread_event, time_now, bundle_aggregations=False - ), - "count": thread_count, - } - - # If any bundled aggregations were found, include them. - if aggregations: - serialized_event["unsigned"].setdefault("m.relations", {}).update( - aggregations + if RelationTypes.THREAD in aggregations: + # Serialize the latest thread event. + latest_thread_event = aggregations[RelationTypes.THREAD]["latest_event"] + + # Don't bundle aggregations as this could recurse forever. + aggregations[RelationTypes.THREAD]["latest_event"] = self.serialize_event( + latest_thread_event, time_now, bundle_aggregations=None ) - async def serialize_events( + # Include the bundled aggregations in the event. + serialized_event["unsigned"].setdefault("m.relations", {}).update(aggregations) + + def serialize_events( self, events: Iterable[Union[JsonDict, EventBase]], time_now: int, **kwargs: Any ) -> List[JsonDict]: """Serializes multiple events. @@ -535,9 +483,9 @@ class EventClientSerializer: Returns: The list of serialized events """ - return await yieldable_gather_results( - self.serialize_event, events, time_now=time_now, **kwargs - ) + return [ + self.serialize_event(event, time_now=time_now, **kwargs) for event in events + ] def copy_power_levels_contents( |