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Merge pull request #3428 from matrix-org/erikj/persisted_pdu

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Simplify get_persisted_pdu
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Erik Johnston 2018-06-22 14:47:43 +01:00 • committed by GitHub
commit b4a5d767a9
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2 changed files with 27 additions and 30 deletions
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44
synapse/handlers/federation.py
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@ -103,8 +103,10 @@ class FederationHandler(BaseHandler):
"""
# We reprocess pdus when we have seen them only as outliers
existing = yield self.get_persisted_pdu(
origin, pdu.event_id, do_auth=False
existing = yield self.store.get_event(
pdu.event_id,
allow_none=True,
allow_rejected=True,
)
# FIXME: Currently we fetch an event again when we already have it
@ -1464,11 +1466,20 @@ class FederationHandler(BaseHandler):
@defer.inlineCallbacks
@log_function
def get_persisted_pdu(self, origin, event_id, do_auth=True):
""" Get a PDU from the database with given origin and id.
def get_persisted_pdu(self, origin, event_id):
"""Get an event from the database for the given server.
Args:
origin [str]: hostname of server which is requesting the event; we
will check that the server is allowed to see it.
event_id [str]: id of the event being requested
Returns:
Deferred: Results in a `Pdu`.
Deferred[EventBase|None]: None if we know nothing about the event;
otherwise the (possibly-redacted) event.
Raises:
AuthError if the server is not currently in the room
"""
event = yield self.store.get_event(
event_id,
@ -1489,20 +1500,17 @@ class FederationHandler(BaseHandler):
)
)
if do_auth:
in_room = yield self.auth.check_host_in_room(
event.room_id,
origin
)
if not in_room:
raise AuthError(403, "Host not in room.")
events = yield self._filter_events_for_server(
origin, event.room_id, [event]
)
event = events[0]
in_room = yield self.auth.check_host_in_room(
event.room_id,
origin
)
if not in_room:
raise AuthError(403, "Host not in room.")
events = yield self._filter_events_for_server(
origin, event.room_id, [event]
)
event = events[0]
defer.returnValue(event)
else:
defer.returnValue(None)