Do not return unspecced original_event field when using the stable /relations endpoint. (#14025)

Keep the old behavior (of including the original_event field) for any
requests to the /unstable version of the endpoint, but do not include
the field when the /v1 version is used.

This should avoid new clients from depending on this field, but will
not help with current dependencies.
This commit is contained in:
Patrick Cloke 2022-10-03 12:47:15 -04:00 committed by GitHub
parent d42541733d
commit b706111b78
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4 changed files with 28 additions and 17 deletions

1
changelog.d/14025.bugfix Normal file
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@ -0,0 +1 @@
Do not return an unspecified `original_event` field when using the stable `/relations` endpoint. Introduced in Synapse v1.57.0.

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@ -78,6 +78,7 @@ class RelationsHandler:
direction: str = "b",
from_token: Optional[StreamToken] = None,
to_token: Optional[StreamToken] = None,
include_original_event: bool = False,
) -> JsonDict:
"""Get related events of a event, ordered by topological ordering.
@ -94,6 +95,7 @@ class RelationsHandler:
oldest first (`"f"`).
from_token: Fetch rows from the given token, or from the start if None.
to_token: Fetch rows up to the given token, or up to the end if None.
include_original_event: Whether to include the parent event.
Returns:
The pagination chunk.
@ -138,25 +140,24 @@ class RelationsHandler:
is_peeking=(member_event_id is None),
)
now = self._clock.time_msec()
# Do not bundle aggregations when retrieving the original event because
# we want the content before relations are applied to it.
original_event = self._event_serializer.serialize_event(
event, now, bundle_aggregations=None
)
# The relations returned for the requested event do include their
# bundled aggregations.
aggregations = await self.get_bundled_aggregations(
events, requester.user.to_string()
)
serialized_events = self._event_serializer.serialize_events(
events, now, bundle_aggregations=aggregations
)
return_value = {
"chunk": serialized_events,
"original_event": original_event,
now = self._clock.time_msec()
return_value: JsonDict = {
"chunk": self._event_serializer.serialize_events(
events, now, bundle_aggregations=aggregations
),
}
if include_original_event:
# Do not bundle aggregations when retrieving the original event because
# we want the content before relations are applied to it.
return_value["original_event"] = self._event_serializer.serialize_event(
event, now, bundle_aggregations=None
)
if next_token:
return_value["next_batch"] = await next_token.to_string(self._main_store)

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@ -82,6 +82,11 @@ class RelationPaginationServlet(RestServlet):
if to_token_str:
to_token = await StreamToken.from_string(self.store, to_token_str)
# The unstable version of this API returns an extra field for client
# compatibility, see https://github.com/matrix-org/synapse/issues/12930.
assert request.path is not None
include_original_event = request.path.startswith(b"/_matrix/client/unstable/")
result = await self._relations_handler.get_relations(
requester=requester,
event_id=parent_id,
@ -92,6 +97,7 @@ class RelationPaginationServlet(RestServlet):
direction=direction,
from_token=from_token,
to_token=to_token,
include_original_event=include_original_event,
)
return 200, result

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@ -654,6 +654,14 @@ class RelationsTestCase(BaseRelationsTestCase):
)
# We also expect to get the original event (the id of which is self.parent_id)
# when requesting the unstable endpoint.
self.assertNotIn("original_event", channel.json_body)
channel = self.make_request(
"GET",
f"/_matrix/client/unstable/rooms/{self.room}/relations/{self.parent_id}?limit=1",
access_token=self.user_token,
)
self.assertEqual(200, channel.code, channel.json_body)
self.assertEqual(
channel.json_body["original_event"]["event_id"], self.parent_id
)
@ -755,11 +763,6 @@ class RelationPaginationTestCase(BaseRelationsTestCase):
channel.json_body["chunk"][0],
)
# We also expect to get the original event (the id of which is self.parent_id)
self.assertEqual(
channel.json_body["original_event"]["event_id"], self.parent_id
)
# Make sure next_batch has something in it that looks like it could be a
# valid token.
self.assertIsInstance(