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Merge pull request #3826 from matrix-org/rav/logging_for_keyring

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add some logging for the keyring queue
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Amber Brown 2018-09-12 20:43:47 +10:00 • committed by GitHub
commit 33716c4aea
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4 changed files with 47 additions and 13 deletions
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34
synapse/federation/federation_base.py
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@ -143,11 +143,31 @@ class FederationBase(object):
def callback(_, pdu):
with logcontext.PreserveLoggingContext(ctx):
if not check_event_content_hash(pdu):
logger.warn(
"Event content has been tampered, redacting %s: %s",
pdu.event_id, pdu.get_pdu_json()
)
return prune_event(pdu)
# let's try to distinguish between failures because the event was
# redacted (which are somewhat expected) vs actual ball-tampering
# incidents.
#
# This is just a heuristic, so we just assume that if the keys are
# about the same between the redacted and received events, then the
# received event was probably a redacted copy (but we then use our
# *actual* redacted copy to be on the safe side.)
redacted_event = prune_event(pdu)
if (
set(six.iterkeys(redacted_event)) == set(six.iterkeys(pdu)) and
set(six.iterkeys(redacted_event.content))
== set(six.iterkeys(pdu.content))
):
logger.info(
"Event %s seems to have been redacted; using our redacted "
"copy",
pdu.event_id,
)
else:
logger.warning(
"Event %s content has been tampered, redacting",
pdu.event_id, pdu.get_pdu_json(),
)
return redacted_event
if self.spam_checker.check_event_for_spam(pdu):
logger.warn(
@ -162,8 +182,8 @@ class FederationBase(object):
failure.trap(SynapseError)
with logcontext.PreserveLoggingContext(ctx):
logger.warn(
"Signature check failed for %s",
pdu.event_id,
"Signature check failed for %s: %s",
pdu.event_id, failure.getErrorMessage(),
)
return failure