From 9fc5b74b24314cc41d8cf54ab73ca8107b1342b4 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Thu, 7 Jun 2018 16:18:57 +0100 Subject: [PATCH] simplify get_persisted_pdu it doesn't make much sense to use get_persisted_pdu on the receive path: just get the event straight from the store. --- synapse/federation/federation_server.py | 13 +------- synapse/handlers/federation.py | 44 +++++++++++++++---------- 2 files changed, 27 insertions(+), 30 deletions(-) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 2d420a58a..d4dd967c6 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -277,7 +277,7 @@ class FederationServer(FederationBase): @defer.inlineCallbacks @log_function def on_pdu_request(self, origin, event_id): - pdu = yield self._get_persisted_pdu(origin, event_id) + pdu = yield self.handler.get_persisted_pdu(origin, event_id) if pdu: defer.returnValue( @@ -470,17 +470,6 @@ class FederationServer(FederationBase): ts_now_ms = self._clock.time_msec() return self.store.get_user_id_for_open_id_token(token, ts_now_ms) - @log_function - def _get_persisted_pdu(self, origin, event_id, do_auth=True): - """ Get a PDU from the database with given origin and id. - - Returns: - Deferred: Results in a `Pdu`. - """ - return self.handler.get_persisted_pdu( - origin, event_id, do_auth=do_auth - ) - def _transaction_from_pdus(self, pdu_list): """Returns a new Transaction containing the given PDUs suitable for transmission. diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 495ac4c64..a5dee355e 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -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 @@ -1468,11 +1470,20 @@ 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, @@ -1493,20 +1504,17 @@ 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)