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Check *all* auth events for room id and rejection (#11009)

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This fixes a bug where we would accept an event whose `auth_events` include
rejected events, if the rejected event was shadowed by another `auth_event`
with same `(type, state_key)`.

The approach is to pass a list of auth events into
`check_auth_rules_for_event` instead of a dict, which of course means updating
the call sites.

This is an extension of #10956.
This commit is contained in:
Richard van der Hoff 2021-10-18 19:28:30 +02:00 • committed by GitHub
parent 73743b8ad1
commit a5d2ea3d08
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8 changed files with 122 additions and 85 deletions
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4
synapse/state/v1.py
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@ -332,7 +332,7 @@ def _resolve_auth_events(
event_auth.check_auth_rules_for_event(
RoomVersions.V1,
event,
auth_events,
auth_events.values(),
)
prev_event = event
except AuthError:
@ -350,7 +350,7 @@ def _resolve_normal_events(
event_auth.check_auth_rules_for_event(
RoomVersions.V1,
event,
auth_events,
auth_events.values(),
)
return event
except AuthError: