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Fix incorrect truncation in get_missing_events

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It's quite important that get_missing_events returns the *latest* events in the
room; however we were pulling event ids out of the database until we got *at
least* 10, and then taking the *earliest* of the results.

We also shouldn't really be relying on depth, and should be checking the
room_id.
This commit is contained in:
Richard van der Hoff 2018-10-16 20:37:16 +01:00
parent b8a5b0097c
commit fc0f13dd03
5 changed files with 26 additions and 35 deletions
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8
synapse/federation/federation_server.py
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@ -507,19 +507,19 @@ class FederationServer(FederationBase):
@defer.inlineCallbacks
@log_function
def on_get_missing_events(self, origin, room_id, earliest_events,
latest_events, limit, min_depth):
latest_events, limit):
with (yield self._server_linearizer.queue((origin, room_id))):
origin_host, _ = parse_server_name(origin)
yield self.check_server_matches_acl(origin_host, room_id)
logger.info(
"on_get_missing_events: earliest_events: %r, latest_events: %r,"
" limit: %d, min_depth: %d",
earliest_events, latest_events, limit, min_depth
" limit: %d",
earliest_events, latest_events, limit,
)
missing_events = yield self.handler.on_get_missing_events(
origin, room_id, earliest_events, latest_events, limit, min_depth
origin, room_id, earliest_events, latest_events, limit,
)
if len(missing_events) < 5: