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Faster joins: use servers list approximation in assert_host_in_room (#14515)

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Signed-off-by: Mathieu Velten <mathieuv@matrix.org>
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Mathieu Velten 2022-11-24 09:10:47 +01:00 committed by GitHub
parent f38d7d79c8
commit 3b4e150868
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2 changed files with 18 additions and 11 deletions
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1
changelog.d/14515.misc Normal file
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@ -0,0 +1 @@
Faster joins: use servers list approximation received during `send_join` (potentially updated with received membership events) in `assert_host_in_room`.

12
synapse/handlers/event_auth.py
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@ -45,6 +45,7 @@ class EventAuthHandler:
def __init__(self, hs: "HomeServer"): def __init__(self, hs: "HomeServer"):
self._clock = hs.get_clock() self._clock = hs.get_clock()
self._store = hs.get_datastores().main self._store = hs.get_datastores().main
self._state_storage_controller = hs.get_storage_controllers().state
self._server_name = hs.hostname self._server_name = hs.hostname
async def check_auth_rules_from_context( async def check_auth_rules_from_context(
@ -179,15 +180,20 @@ class EventAuthHandler:
this function may return an incorrect result as we are not able to fully this function may return an incorrect result as we are not able to fully
track server membership in a room without full state. track server membership in a room without full state.
""" """
if not allow_partial_state_rooms and await self._store.is_partial_state_room( if await self._store.is_partial_state_room(room_id):
if allow_partial_state_rooms:
current_hosts = await self._state_storage_controller.get_current_hosts_in_room_or_partial_state_approximation(
room_id room_id
): )
if host not in current_hosts:
raise AuthError(403, "Host not in room (partial-state approx).")
else:
raise AuthError( raise AuthError(
403, 403,
"Unable to authorise you right now; room is partial-stated here.", "Unable to authorise you right now; room is partial-stated here.",
errcode=Codes.UNABLE_DUE_TO_PARTIAL_STATE, errcode=Codes.UNABLE_DUE_TO_PARTIAL_STATE,
) )
else:
if not await self.is_host_in_room(room_id, host): if not await self.is_host_in_room(room_id, host):
raise AuthError(403, "Host not in room.") raise AuthError(403, "Host not in room.")