diff --git a/changelog.d/5220.feature b/changelog.d/5220.feature
new file mode 100644
index 0000000000..747098c166
--- /dev/null
+++ b/changelog.d/5220.feature
@@ -0,0 +1 @@
+Add experimental support for relations (aka reactions and edits).
diff --git a/synapse/events/utils.py b/synapse/events/utils.py
index 27a2a9ef98..e2d4384de1 100644
--- a/synapse/events/utils.py
+++ b/synapse/events/utils.py
@@ -330,12 +330,13 @@ class EventClientSerializer(object):
)
@defer.inlineCallbacks
- def serialize_event(self, event, time_now, **kwargs):
+ def serialize_event(self, event, time_now, bundle_aggregations=True, **kwargs):
"""Serializes a single event.
Args:
event (EventBase)
time_now (int): The current time in milliseconds
+ bundle_aggregations (bool): Whether to bundle in related events
**kwargs: Arguments to pass to `serialize_event`
Returns:
@@ -350,7 +351,7 @@ class EventClientSerializer(object):
# If MSC1849 is enabled then we need to look if thre are any relations
# we need to bundle in with the event
- if self.experimental_msc1849_support_enabled:
+ if self.experimental_msc1849_support_enabled and bundle_aggregations:
annotations = yield self.store.get_aggregation_groups_for_event(
event_id,
)
diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py
index 6003ad9cca..eb525070cf 100644
--- a/synapse/handlers/events.py
+++ b/synapse/handlers/events.py
@@ -122,6 +122,9 @@ class EventStreamHandler(BaseHandler):
chunks = yield self._event_serializer.serialize_events(
events, time_now, as_client_event=as_client_event,
+ # We don't bundle "live" events, as otherwise clients
+ # will end up double counting annotations.
+ bundle_aggregations=False,
)
chunk = {
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 792edc7579..0b02469ceb 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -166,6 +166,9 @@ class MessageHandler(object):
now = self.clock.time_msec()
events = yield self._event_serializer.serialize_events(
room_state.values(), now,
+ # We don't bother bundling aggregations in when asked for state
+ # events, as clients won't use them.
+ bundle_aggregations=False,
)
defer.returnValue(events)
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index c701e534e7..d3025025e3 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -358,6 +358,9 @@ class SyncRestServlet(RestServlet):
def serialize(events):
return self._event_serializer.serialize_events(
events, time_now=time_now,
+ # We don't bundle "live" events, as otherwise clients
+ # will end up double counting annotations.
+ bundle_aggregations=False,
token_id=token_id,
event_format=event_formatter,
only_event_fields=only_fields,
|