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authorEric Eastwood <erice@element.io>2021-10-05 11:51:57 -0500
committerGitHub <noreply@github.com>2021-10-05 11:51:57 -0500
commit392863fbf1ee31f8a1997446ab31919a7b6d9a14 (patch)
tree3ebf2b6ba77da1ce73f5b29d8150121f39b44e77 /synapse/handlers/federation_event.py
parentMerge branch 'master' into develop (diff)
downloadsynapse-392863fbf1ee31f8a1997446ab31919a7b6d9a14.tar.xz
Fix logic flaw preventing tracking of MSC2716 events in existing room versions (#10962)
We correctly allowed using the MSC2716 batch endpoint for
the room creator in existing room versions but accidentally didn't track
the events because of a logic flaw.

This prevented you from connecting subsequent chunks together because it would
throw the unknown batch ID error.

We only want to process MSC2716 events when:

 - The room version supports MSC2716
 - Any room where the homeserver has the `msc2716_enabled` experimental feature enabled and the event is from the room creator
Diffstat (limited to 'synapse/handlers/federation_event.py')
-rw-r--r--synapse/handlers/federation_event.py5
1 files changed, 2 insertions, 3 deletions
diff --git a/synapse/handlers/federation_event.py b/synapse/handlers/federation_event.py
index 9269cb444d..243be46267 100644
--- a/synapse/handlers/federation_event.py
+++ b/synapse/handlers/federation_event.py
@@ -1015,9 +1015,8 @@ class FederationEventHandler:
         room_version = await self._store.get_room_version(marker_event.room_id)
         create_event = await self._store.get_create_event_for_room(marker_event.room_id)
         room_creator = create_event.content.get(EventContentFields.ROOM_CREATOR)
-        if (
-            not room_version.msc2716_historical
-            or not self._config.experimental.msc2716_enabled
+        if not room_version.msc2716_historical and (
+            not self._config.experimental.msc2716_enabled
             or marker_event.sender != room_creator
         ):
             return