From a6e3222fe5abf5b65b53678d1208c4c58f97b391 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Fri, 6 Oct 2017 14:24:06 +0100 Subject: [PATCH] Fed server: Move origin-check code to _handle_received_pdu The response-building code expects there to be an entry in the `results` list for each entry in the pdu_list, so the early `continue` was messing this up. That doesn't really matter, because all that the federation client does is log any errors, but it's pretty poor form. --- synapse/federation/federation_server.py | 48 ++++++++++++------------- 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 51e3fdea0..e791a1266 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -143,30 +143,6 @@ class FederationServer(FederationBase): results = [] for pdu in pdu_list: - # check that it's actually being sent from a valid destination to - # workaround bug #1753 in 0.18.5 and 0.18.6 - if transaction.origin != get_domain_from_id(pdu.event_id): - # We continue to accept join events from any server; this is - # necessary for the federation join dance to work correctly. - # (When we join over federation, the "helper" server is - # responsible for sending out the join event, rather than the - # origin. See bug #1893). - if not ( - pdu.type == 'm.room.member' and - pdu.content and - pdu.content.get("membership", None) == 'join' - ): - logger.info( - "Discarding PDU %s from invalid origin %s", - pdu.event_id, transaction.origin - ) - continue - else: - logger.info( - "Accepting join PDU %s from %s", - pdu.event_id, transaction.origin - ) - try: yield self._handle_received_pdu(transaction.origin, pdu) results.append({}) @@ -520,6 +496,30 @@ class FederationServer(FederationBase): Returns (Deferred): completes with None Raises: FederationError if the signatures / hash do not match """ + # check that it's actually being sent from a valid destination to + # workaround bug #1753 in 0.18.5 and 0.18.6 + if origin != get_domain_from_id(pdu.event_id): + # We continue to accept join events from any server; this is + # necessary for the federation join dance to work correctly. + # (When we join over federation, the "helper" server is + # responsible for sending out the join event, rather than the + # origin. See bug #1893). + if not ( + pdu.type == 'm.room.member' and + pdu.content and + pdu.content.get("membership", None) == 'join' + ): + logger.info( + "Discarding PDU %s from invalid origin %s", + pdu.event_id, origin + ) + return + else: + logger.info( + "Accepting join PDU %s from %s", + pdu.event_id, origin + ) + # Check signature. try: pdu = yield self._check_sigs_and_hash(pdu)