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convert to async: FederationHandler.on_receive_pdu
and associated functions: * on_receive_pdu * handle_queued_pdus * get_missing_events_for_pdu
This commit is contained in:
Richard van der Hoff
parent
7712e751b8
commit
e77237b935
@ -165,8 +165,7 @@ class FederationHandler(BaseHandler):
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self._ephemeral_messages_enabled = hs.config.enable_ephemeral_messages
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@defer.inlineCallbacks
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def on_receive_pdu(self, origin, pdu, sent_to_us_directly=False):
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async def on_receive_pdu(self, origin, pdu, sent_to_us_directly=False) -> None:
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""" Process a PDU received via a federation /send/ transaction, or
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via backfill of missing prev_events
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@ -176,8 +175,6 @@ class FederationHandler(BaseHandler):
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pdu (FrozenEvent): received PDU
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sent_to_us_directly (bool): True if this event was pushed to us; False if
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we pulled it as the result of a missing prev_event.
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Returns (Deferred): completes with None
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"""
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room_id = pdu.room_id
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@ -186,7 +183,7 @@ class FederationHandler(BaseHandler):
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logger.info("handling received PDU: %s", pdu)
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# We reprocess pdus when we have seen them only as outliers
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existing = yield self.store.get_event(
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existing = await self.store.get_event(
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event_id, allow_none=True, allow_rejected=True
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)
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@ -230,7 +227,7 @@ class FederationHandler(BaseHandler):
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#
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# Note that if we were never in the room then we would have already
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# dropped the event, since we wouldn't know the room version.
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is_in_room = yield self.auth.check_host_in_room(room_id, self.server_name)
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is_in_room = await self.auth.check_host_in_room(room_id, self.server_name)
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if not is_in_room:
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logger.info(
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"[%s %s] Ignoring PDU from %s as we're not in the room",
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@ -246,12 +243,12 @@ class FederationHandler(BaseHandler):
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# Get missing pdus if necessary.
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if not pdu.internal_metadata.is_outlier():
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# We only backfill backwards to the min depth.
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min_depth = yield self.get_min_depth_for_context(pdu.room_id)
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min_depth = await self.get_min_depth_for_context(pdu.room_id)
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logger.debug("[%s %s] min_depth: %d", room_id, event_id, min_depth)
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prevs = set(pdu.prev_event_ids())
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seen = yield self.store.have_seen_events(prevs)
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seen = await self.store.have_seen_events(prevs)
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if min_depth and pdu.depth < min_depth:
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# This is so that we don't notify the user about this
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@ -271,7 +268,7 @@ class FederationHandler(BaseHandler):
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len(missing_prevs),
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shortstr(missing_prevs),
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)
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with (yield self._room_pdu_linearizer.queue(pdu.room_id)):
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with (await self._room_pdu_linearizer.queue(pdu.room_id)):
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logger.info(
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"[%s %s] Acquired room lock to fetch %d missing prev_events",
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room_id,
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@ -280,7 +277,7 @@ class FederationHandler(BaseHandler):
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)
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try:
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yield self._get_missing_events_for_pdu(
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await self._get_missing_events_for_pdu(
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origin, pdu, prevs, min_depth
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)
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except Exception as e:
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@ -291,7 +288,7 @@ class FederationHandler(BaseHandler):
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# Update the set of things we've seen after trying to
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# fetch the missing stuff
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seen = yield self.store.have_seen_events(prevs)
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seen = await self.store.have_seen_events(prevs)
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if not prevs - seen:
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logger.info(
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@ -355,7 +352,7 @@ class FederationHandler(BaseHandler):
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event_map = {event_id: pdu}
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try:
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# Get the state of the events we know about
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ours = yield self.state_store.get_state_groups_ids(room_id, seen)
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ours = await self.state_store.get_state_groups_ids(room_id, seen)
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# state_maps is a list of mappings from (type, state_key) to event_id
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state_maps = list(
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@ -372,7 +369,7 @@ class FederationHandler(BaseHandler):
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"Requesting state at missing prev_event %s", event_id,
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)
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room_version = yield self.store.get_room_version(room_id)
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room_version = await self.store.get_room_version(room_id)
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with nested_logging_context(p):
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# note that if any of the missing prevs share missing state or
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@ -381,11 +378,11 @@ class FederationHandler(BaseHandler):
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(
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remote_state,
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got_auth_chain,
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) = yield self._get_state_for_room(origin, room_id, p)
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) = await self._get_state_for_room(origin, room_id, p)
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# we want the state *after* p; _get_state_for_room returns the
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# state *before* p.
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remote_event = yield self.federation_client.get_pdu(
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remote_event = await self.federation_client.get_pdu(
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[origin], p, room_version, outlier=True
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)
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@ -410,7 +407,7 @@ class FederationHandler(BaseHandler):
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for x in remote_state:
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event_map[x.event_id] = x
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state_map = yield resolve_events_with_store(
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state_map = await resolve_events_with_store(
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room_version,
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state_maps,
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event_map,
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@ -422,7 +419,7 @@ class FederationHandler(BaseHandler):
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# First though we need to fetch all the events that are in
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# state_map, so we can build up the state below.
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evs = yield self.store.get_events(
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evs = await self.store.get_events(
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list(state_map.values()),
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get_prev_content=False,
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redact_behaviour=EventRedactBehaviour.AS_IS,
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@ -446,12 +443,11 @@ class FederationHandler(BaseHandler):
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affected=event_id,
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)
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yield self._process_received_pdu(
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await self._process_received_pdu(
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origin, pdu, state=state, auth_chain=auth_chain
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)
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@defer.inlineCallbacks
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def _get_missing_events_for_pdu(self, origin, pdu, prevs, min_depth):
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async def _get_missing_events_for_pdu(self, origin, pdu, prevs, min_depth):
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"""
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Args:
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origin (str): Origin of the pdu. Will be called to get the missing events
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@ -463,12 +459,12 @@ class FederationHandler(BaseHandler):
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room_id = pdu.room_id
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event_id = pdu.event_id
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seen = yield self.store.have_seen_events(prevs)
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seen = await self.store.have_seen_events(prevs)
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if not prevs - seen:
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return
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latest = yield self.store.get_latest_event_ids_in_room(room_id)
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latest = await self.store.get_latest_event_ids_in_room(room_id)
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# We add the prev events that we have seen to the latest
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# list to ensure the remote server doesn't give them to us
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@ -532,7 +528,7 @@ class FederationHandler(BaseHandler):
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# All that said: Let's try increasing the timout to 60s and see what happens.
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try:
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missing_events = yield self.federation_client.get_missing_events(
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missing_events = await self.federation_client.get_missing_events(
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origin,
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room_id,
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earliest_events_ids=list(latest),
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@ -571,7 +567,7 @@ class FederationHandler(BaseHandler):
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)
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with nested_logging_context(ev.event_id):
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try:
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yield self.on_receive_pdu(origin, ev, sent_to_us_directly=False)
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await self.on_receive_pdu(origin, ev, sent_to_us_directly=False)
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except FederationError as e:
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if e.code == 403:
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logger.warning(
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@ -1328,8 +1324,7 @@ class FederationHandler(BaseHandler):
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return True
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@defer.inlineCallbacks
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def _handle_queued_pdus(self, room_queue):
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async def _handle_queued_pdus(self, room_queue):
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"""Process PDUs which got queued up while we were busy send_joining.
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Args:
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@ -1345,7 +1340,7 @@ class FederationHandler(BaseHandler):
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p.room_id,
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)
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with nested_logging_context(p.event_id):
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yield self.on_receive_pdu(origin, p, sent_to_us_directly=True)
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await self.on_receive_pdu(origin, p, sent_to_us_directly=True)
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except Exception as e:
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logger.warning(
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"Error handling queued PDU %s from %s: %s", p.event_id, origin, e
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@ -1,6 +1,6 @@
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from mock import Mock
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from twisted.internet.defer import maybeDeferred, succeed
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from twisted.internet.defer import ensureDeferred, maybeDeferred, succeed
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from synapse.events import FrozenEvent
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from synapse.logging.context import LoggingContext
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@ -70,9 +70,11 @@ class MessageAcceptTests(unittest.TestCase):
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)
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# Send the join, it should return None (which is not an error)
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d = self.handler.on_receive_pdu(
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d = ensureDeferred(
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self.handler.on_receive_pdu(
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"test.serv", join_event, sent_to_us_directly=True
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)
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)
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self.reactor.advance(1)
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self.assertEqual(self.successResultOf(d), None)
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@ -119,9 +121,11 @@ class MessageAcceptTests(unittest.TestCase):
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)
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with LoggingContext(request="lying_event"):
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d = self.handler.on_receive_pdu(
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d = ensureDeferred(
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self.handler.on_receive_pdu(
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"test.serv", lying_event, sent_to_us_directly=True
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)
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)
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# Step the reactor, so the database fetches come back
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self.reactor.advance(1)
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