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Faster Remote Room Joins: tell remote homeservers that we are unable to authorise them if they query a room which has partial state on our server. (#13823)

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reivilibre 2022-09-23 10:47:16 +00:00 • committed by GitHub
parent ac7e5683d6
commit c06b2b7142
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11 changed files with 58 additions and 42 deletions
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synapse/federation/federation_server.py
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@ -530,13 +530,10 @@ class FederationServer(FederationBase):
async def on_room_state_request(
self, origin: str, room_id: str, event_id: str
) -> Tuple[int, JsonDict]:
await self._event_auth_handler.assert_host_in_room(room_id, origin)
origin_host, _ = parse_server_name(origin)
await self.check_server_matches_acl(origin_host, room_id)
in_room = await self._event_auth_handler.check_host_in_room(room_id, origin)
if not in_room:
raise AuthError(403, "Host not in room.")
# we grab the linearizer to protect ourselves from servers which hammer
# us. In theory we might already have the response to this query
# in the cache so we could return it without waiting for the linearizer
@ -560,13 +557,10 @@ class FederationServer(FederationBase):
if not event_id:
raise NotImplementedError("Specify an event")
await self._event_auth_handler.assert_host_in_room(room_id, origin)
origin_host, _ = parse_server_name(origin)
await self.check_server_matches_acl(origin_host, room_id)
in_room = await self._event_auth_handler.check_host_in_room(room_id, origin)
if not in_room:
raise AuthError(403, "Host not in room.")
resp = await self._state_ids_resp_cache.wrap(
(room_id, event_id),
self._on_state_ids_request_compute,
@ -955,6 +949,7 @@ class FederationServer(FederationBase):
self, origin: str, room_id: str, event_id: str
) -> Tuple[int, Dict[str, Any]]:
async with self._server_linearizer.queue((origin, room_id)):
await self._event_auth_handler.assert_host_in_room(room_id, origin)
origin_host, _ = parse_server_name(origin)
await self.check_server_matches_acl(origin_host, room_id)