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Send device list updates out to servers in partially joined rooms (#13874)

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Use the provided list of servers in the room from the `/send_join`
response, since we will not know which users are in the room.  This
isn't sufficient to ensure that all remote servers receive the right
device list updates, since the `/send_join` response may be inaccurate
or we may calculate the membership state of new users in the room
incorrectly.

Signed-off-by: Sean Quah <seanq@matrix.org>
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Sean Quah 2022-09-23 13:44:03 +01:00 • committed by GitHub
parent c06b2b7142
commit 03c2bfb7f8
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4 changed files with 66 additions and 2 deletions
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6
synapse/handlers/device.py
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@ -688,11 +688,15 @@ class DeviceHandler(DeviceWorkerHandler):
# Ignore any users that aren't ours
if self.hs.is_mine_id(user_id):
hosts = set(
await self._storage_controllers.state.get_current_hosts_in_room(
await self._storage_controllers.state.get_current_hosts_in_room_or_partial_state_approximation(
room_id
)
)
hosts.discard(self.server_name)
# For rooms with partial state, `hosts` is merely an
# approximation. When we transition to a full state room, we
# will have to send out device list updates to any servers we
# missed.
# Check if we've already sent this update to some hosts
if current_stream_id == stream_id: