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authorRichard van der Hoff <1389908+richvdh@users.noreply.github.com>2021-10-18 19:28:30 +0200
committerGitHub <noreply@github.com>2021-10-18 18:28:30 +0100
commita5d2ea3d08f780cdb746ea7101824513a9ec9610 (patch)
tree0ee52c77d7386117d1e5c83f201f38e624148fd8 /changelog.d/11009.bugfix
parentDocument Synapse's behaviour when dealing with multiple modules (#11096) (diff)
downloadsynapse-a5d2ea3d08f780cdb746ea7101824513a9ec9610.tar.xz
Check *all* auth events for room id and rejection (#11009)
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.
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+Fix a long-standing bug which meant that events received over federation were sometimes incorrectly accepted into the room state.