diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/message.py | 47 | ||||
| -rw-r--r-- | synapse/handlers/relations.py | 56 |
2 files changed, 93 insertions, 10 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 468900a07f..4cf593cfdc 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -877,6 +877,36 @@ class EventCreationHandler: return prev_event return None + async def get_event_from_transaction( + self, + requester: Requester, + txn_id: str, + room_id: str, + ) -> Optional[EventBase]: + """For the given transaction ID and room ID, check if there is a matching event. + If so, fetch it and return it. + + Args: + requester: The requester making the request in the context of which we want + to fetch the event. + txn_id: The transaction ID. + room_id: The room ID. + + Returns: + An event if one could be found, None otherwise. + """ + if requester.access_token_id: + existing_event_id = await self.store.get_event_id_from_transaction_id( + room_id, + requester.user.to_string(), + requester.access_token_id, + txn_id, + ) + if existing_event_id: + return await self.store.get_event(existing_event_id) + + return None + async def create_and_send_nonmember_event( self, requester: Requester, @@ -956,18 +986,17 @@ class EventCreationHandler: # extremities to pile up, which in turn leads to state resolution # taking longer. async with self.limiter.queue(event_dict["room_id"]): - if txn_id and requester.access_token_id: - existing_event_id = await self.store.get_event_id_from_transaction_id( - event_dict["room_id"], - requester.user.to_string(), - requester.access_token_id, - txn_id, + if txn_id: + event = await self.get_event_from_transaction( + requester, txn_id, event_dict["room_id"] ) - if existing_event_id: - event = await self.store.get_event(existing_event_id) + if event: # we know it was persisted, so must have a stream ordering assert event.internal_metadata.stream_ordering - return event, event.internal_metadata.stream_ordering + return ( + event, + event.internal_metadata.stream_ordering, + ) event, context = await self.create_event( requester, diff --git a/synapse/handlers/relations.py b/synapse/handlers/relations.py index 0a0c6d938e..8e71dda970 100644 --- a/synapse/handlers/relations.py +++ b/synapse/handlers/relations.py @@ -17,7 +17,7 @@ from typing import TYPE_CHECKING, Dict, FrozenSet, Iterable, List, Optional, Tup import attr -from synapse.api.constants import RelationTypes +from synapse.api.constants import EventTypes, RelationTypes from synapse.api.errors import SynapseError from synapse.events import EventBase, relation_from_event from synapse.logging.opentracing import trace @@ -75,6 +75,7 @@ class RelationsHandler: self._clock = hs.get_clock() self._event_handler = hs.get_event_handler() self._event_serializer = hs.get_event_client_serializer() + self._event_creation_handler = hs.get_event_creation_handler() async def get_relations( self, @@ -205,6 +206,59 @@ class RelationsHandler: return related_events, next_token + async def redact_events_related_to( + self, + requester: Requester, + event_id: str, + initial_redaction_event: EventBase, + relation_types: List[str], + ) -> None: + """Redacts all events related to the given event ID with one of the given + relation types. + + This method is expected to be called when redacting the event referred to by + the given event ID. + + If an event cannot be redacted (e.g. because of insufficient permissions), log + the error and try to redact the next one. + + Args: + requester: The requester to redact events on behalf of. + event_id: The event IDs to look and redact relations of. + initial_redaction_event: The redaction for the event referred to by + event_id. + relation_types: The types of relations to look for. + + Raises: + ShadowBanError if the requester is shadow-banned + """ + related_event_ids = ( + await self._main_store.get_all_relations_for_event_with_types( + event_id, relation_types + ) + ) + + for related_event_id in related_event_ids: + try: + await self._event_creation_handler.create_and_send_nonmember_event( + requester, + { + "type": EventTypes.Redaction, + "content": initial_redaction_event.content, + "room_id": initial_redaction_event.room_id, + "sender": requester.user.to_string(), + "redacts": related_event_id, + }, + ratelimit=False, + ) + except SynapseError as e: + logger.warning( + "Failed to redact event %s (related to event %s): %s", + related_event_id, + event_id, + e.msg, + ) + async def get_annotations_for_event( self, event_id: str, |