forked from MirrorHub/synapse
Exclude soft-failed events from fwd-extremity candidates. (#5146)
When considering the candidates to be forward-extremities, we must exclude soft failures. Hopefully fixes #5090.
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changelog.d/5146.bugfix
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changelog.d/5146.bugfix
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Exclude soft-failed events from forward-extremity candidates: fixes "No forward extremities left!" error.
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@ -1916,6 +1916,11 @@ class FederationHandler(BaseHandler):
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event.room_id, latest_event_ids=extrem_ids,
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)
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logger.debug(
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"Doing soft-fail check for %s: state %s",
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event.event_id, current_state_ids,
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)
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# Now check if event pass auth against said current state
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auth_types = auth_types_for_event(event)
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current_state_ids = [
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@ -1932,7 +1937,7 @@ class FederationHandler(BaseHandler):
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self.auth.check(room_version, event, auth_events=current_auth_events)
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except AuthError as e:
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logger.warn(
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"Failed current state auth resolution for %r because %s",
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"Soft-failing %r because %s",
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event, e,
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)
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event.internal_metadata.soft_failed = True
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@ -575,10 +575,11 @@ class EventsStore(
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def _get_events(txn, batch):
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sql = """
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SELECT prev_event_id
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SELECT prev_event_id, internal_metadata
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FROM event_edges
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INNER JOIN events USING (event_id)
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LEFT JOIN rejections USING (event_id)
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LEFT JOIN event_json USING (event_id)
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WHERE
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prev_event_id IN (%s)
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AND NOT events.outlier
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@ -588,7 +589,11 @@ class EventsStore(
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)
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txn.execute(sql, batch)
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results.extend(r[0] for r in txn)
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results.extend(
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r[0]
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for r in txn
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if not json.loads(r[1]).get("soft_failed")
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)
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for chunk in batch_iter(event_ids, 100):
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yield self.runInteraction("_get_events_which_are_prevs", _get_events, chunk)
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