diff options
Diffstat (limited to 'synapse/handlers/message.py')
| -rw-r--r-- | synapse/handlers/message.py | 67 |
1 files changed, 38 insertions, 29 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index e1082954cc..25eab0c5d4 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -23,6 +23,7 @@ from canonicaljson import encode_canonical_json from twisted.internet.interfaces import IDelayedCall +import synapse from synapse import event_auth from synapse.api.constants import ( EventContentFields, @@ -44,7 +45,7 @@ from synapse.api.errors import ( from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, RoomVersions from synapse.api.urls import ConsentURIBuilder from synapse.event_auth import validate_event_for_room_version -from synapse.events import EventBase +from synapse.events import EventBase, relation_from_event from synapse.events.builder import EventBuilder from synapse.events.snapshot import EventContext from synapse.events.validator import EventValidator @@ -426,7 +427,7 @@ class EventCreationHandler: # This is to stop us from diverging history *too* much. self.limiter = Linearizer(max_count=5, name="room_event_creation_limit") - self.action_generator = hs.get_action_generator() + self._bulk_push_rule_evaluator = hs.get_bulk_push_rule_evaluator() self.spam_checker = hs.get_spam_checker() self.third_party_event_rules: "ThirdPartyEventRules" = ( @@ -634,7 +635,9 @@ class EventCreationHandler: # federation as well as those created locally. As of room v3, aliases events # can be created by users that are not in the room, therefore we have to # tolerate them in event_auth.check(). - prev_state_ids = await context.get_prev_state_ids() + prev_state_ids = await context.get_prev_state_ids( + StateFilter.from_types([(EventTypes.Member, None)]) + ) prev_event_id = prev_state_ids.get((EventTypes.Member, event.sender)) prev_event = ( await self.store.get_event(prev_event_id, allow_none=True) @@ -757,7 +760,13 @@ class EventCreationHandler: The previous version of the event is returned, if it is found in the event context. Otherwise, None is returned. """ - prev_state_ids = await context.get_prev_state_ids() + if event.internal_metadata.is_outlier(): + # This can happen due to out of band memberships + return None + + prev_state_ids = await context.get_prev_state_ids( + StateFilter.from_types([(event.type, None)]) + ) prev_event_id = prev_state_ids.get((event.type, event.state_key)) if not prev_event_id: return None @@ -877,11 +886,11 @@ class EventCreationHandler: event.sender, ) - spam_error = await self.spam_checker.check_event_for_spam(event) - if spam_error: - if not isinstance(spam_error, str): - spam_error = "Spam is not permitted here" - raise SynapseError(403, spam_error, Codes.FORBIDDEN) + spam_check = await self.spam_checker.check_event_for_spam(event) + if spam_check is not synapse.spam_checker_api.Allow.ALLOW: + raise SynapseError( + 403, "This message had been rejected as probable spam", spam_check + ) ev = await self.handle_new_client_event( requester=requester, @@ -1001,7 +1010,7 @@ class EventCreationHandler: # after it is created if builder.internal_metadata.outlier: event.internal_metadata.outlier = True - context = EventContext.for_outlier() + context = EventContext.for_outlier(self.storage) elif ( event.type == EventTypes.MSC2716_INSERTION and state_event_ids @@ -1056,20 +1065,11 @@ class EventCreationHandler: SynapseError if the event is invalid. """ - relation = event.content.get("m.relates_to") + relation = relation_from_event(event) if not relation: return - relation_type = relation.get("rel_type") - if not relation_type: - return - - # Ensure the parent is real. - relates_to = relation.get("event_id") - if not relates_to: - return - - parent_event = await self.store.get_event(relates_to, allow_none=True) + parent_event = await self.store.get_event(relation.parent_id, allow_none=True) if parent_event: # And in the same room. if parent_event.room_id != event.room_id: @@ -1078,28 +1078,31 @@ class EventCreationHandler: else: # There must be some reason that the client knows the event exists, # see if there are existing relations. If so, assume everything is fine. - if not await self.store.event_is_target_of_relation(relates_to): + if not await self.store.event_is_target_of_relation(relation.parent_id): # Otherwise, the client can't know about the parent event! raise SynapseError(400, "Can't send relation to unknown event") # If this event is an annotation then we check that that the sender # can't annotate the same way twice (e.g. stops users from liking an # event multiple times). - if relation_type == RelationTypes.ANNOTATION: - aggregation_key = relation["key"] + if relation.rel_type == RelationTypes.ANNOTATION: + aggregation_key = relation.aggregation_key + + if aggregation_key is None: + raise SynapseError(400, "Missing aggregation key") if len(aggregation_key) > 500: raise SynapseError(400, "Aggregation key is too long") already_exists = await self.store.has_user_annotated_event( - relates_to, event.type, aggregation_key, event.sender + relation.parent_id, event.type, aggregation_key, event.sender ) if already_exists: raise SynapseError(400, "Can't send same reaction twice") # Don't attempt to start a thread if the parent event is a relation. - elif relation_type == RelationTypes.THREAD: - if await self.store.event_includes_relation(relates_to): + elif relation.rel_type == RelationTypes.THREAD: + if await self.store.event_includes_relation(relation.parent_id): raise SynapseError( 400, "Cannot start threads from an event with a relation" ) @@ -1245,7 +1248,9 @@ class EventCreationHandler: # and `state_groups` because they have `prev_events` that aren't persisted yet # (historical messages persisted in reverse-chronological order). if not event.internal_metadata.is_historical(): - await self.action_generator.handle_push_actions_for_event(event, context) + await self._bulk_push_rule_evaluator.action_for_event_by_user( + event, context + ) try: # If we're a worker we need to hit out to the master. @@ -1547,7 +1552,11 @@ class EventCreationHandler: "Redacting MSC2716 events is not supported in this room version", ) - prev_state_ids = await context.get_prev_state_ids() + event_types = event_auth.auth_types_for_event(event.room_version, event) + prev_state_ids = await context.get_prev_state_ids( + StateFilter.from_types(event_types) + ) + auth_events_ids = self._event_auth_handler.compute_auth_events( event, prev_state_ids, for_verification=True ) |