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Merge pull request #2516 from matrix-org/rav/fix_fed_server_origin_check

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Fed server: Move origin-check code to _handle_received_pdu
This commit is contained in:
Richard van der Hoff 2017-10-09 18:09:43 +01:00 committed by GitHub
commit c7b0678356
1 changed files with 24 additions and 24 deletions
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48
synapse/federation/federation_server.py
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@ -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)