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remote join processing: get create event from state, not auth_chain (#12039)

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A follow-up to #12005, in which I apparently missed that there are a bunch of other places that assume the create event is in the auth chain.
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Richard van der Hoff 2022-02-21 19:27:35 +00:00 committed by GitHub
parent a85dde3445
commit 3070af4809
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4 changed files with 8 additions and 5 deletions
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1
changelog.d/12039.misc Normal file
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@ -0,0 +1 @@
Preparation for faster-room-join work: when parsing the `send_join` response, get the `m.room.create` event from `state`, not `auth_chain`.

6
synapse/federation/federation_client.py
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@ -870,13 +870,15 @@ class FederationClient(FederationBase):
for s in signed_state:
s.internal_metadata = copy.deepcopy(s.internal_metadata)
# double-check that the same create event has ended up in the auth chain
# double-check that the auth chain doesn't include a different create event
auth_chain_create_events = [
e.event_id
for e in signed_auth
if (e.type, e.state_key) == (EventTypes.Create, "")
]
if auth_chain_create_events != [create_event.event_id]:
if auth_chain_create_events and auth_chain_create_events != [
create_event.event_id
]:
raise InvalidResponseError(
"Unexpected create event(s) in auth chain: %s"
% (auth_chain_create_events,)

2
synapse/handlers/federation.py
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@ -516,7 +516,7 @@ class FederationHandler:
await self.store.upsert_room_on_join(
room_id=room_id,
room_version=room_version_obj,
auth_events=auth_chain,
state_events=state,
)
max_stream_id = await self._federation_event_handler.process_remote_join(

4
synapse/storage/databases/main/room.py
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@ -1498,7 +1498,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore):
self._event_reports_id_gen = IdGenerator(db_conn, "event_reports", "id")
async def upsert_room_on_join(
self, room_id: str, room_version: RoomVersion, auth_events: List[EventBase]
self, room_id: str, room_version: RoomVersion, state_events: List[EventBase]
) -> None:
"""Ensure that the room is stored in the table
@ -1511,7 +1511,7 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore):
has_auth_chain_index = await self.has_auth_chain_index(room_id)
create_event = None
for e in auth_events:
for e in state_events:
if (e.type, e.state_key) == (EventTypes.Create, ""):
create_event = e
break