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Merge pull request #2490 from matrix-org/erikj/drop_left_room_events

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Ignore incoming events for rooms that we have left
This commit is contained in:
Erik Johnston 2017-10-10 11:58:32 +01:00 • committed by GitHub
commit 84e27a592d
3 changed files with 65 additions and 0 deletions
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22
synapse/handlers/federation.py
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@ -122,6 +122,28 @@ class FederationHandler(BaseHandler):
self.room_queues[pdu.room_id].append((pdu, origin))
return
# If we're no longer in the room just ditch the event entirely. This
# is probably an old server that has come back and thinks we're still
# in the room (or we've been rejoined to the room by a state reset).
#
# If we were never in the room then maybe our database got vaped and
# we should check if we *are* in fact in the room. If we are then we
# can magically rejoin the room.
is_in_room = yield self.auth.check_host_in_room(
pdu.room_id,
self.server_name
)
if not is_in_room:
was_in_room = yield self.store.was_host_joined(
pdu.room_id, self.server_name,
)
if was_in_room:
logger.info(
"Ignoring PDU %s for room %s from %s as we've left the room!",
pdu.event_id, pdu.room_id, origin,
)
return
state = None
auth_chain = []