Fix missing cache invalidation in application service code (#14670)

#11915 introduced the `@cached` `is_interested_in_room` method in
Synapse 1.55.0, which depends upon `get_aliases_for_room`. Add a missing
cache invalidation callback so that the `is_interested_in_room` cache is
invalidated when `get_aliases_for_room` is invalidated.

#13787 made `get_rooms_for_user` `@cached`. Add a missing cache
invalidation callback so that the `is_interested_in_presence` cache is
invalidated when `get_rooms_for_user` is invalidated.

Signed-off-by: Sean Quah <seanq@matrix.org>
This commit is contained in:
Sean Quah 2022-12-12 18:13:43 +00:00 committed by GitHub
parent b5b5f66084
commit 7982891794
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2 changed files with 7 additions and 2 deletions

1
changelog.d/14670.bugfix Normal file
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@ -0,0 +1 @@
Fix bugs introduced in 1.55.0 and 1.69.0 where application services would not be notified of events in the correct rooms, due to stale caches.

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@ -245,7 +245,9 @@ class ApplicationService:
return True return True
# likewise with the room's aliases (if it has any) # likewise with the room's aliases (if it has any)
alias_list = await store.get_aliases_for_room(room_id) alias_list = await store.get_aliases_for_room(
room_id, on_invalidate=cache_context.invalidate
)
for alias in alias_list: for alias in alias_list:
if self.is_room_alias_in_namespace(alias): if self.is_room_alias_in_namespace(alias):
return True return True
@ -311,7 +313,9 @@ class ApplicationService:
# Find all the rooms the sender is in # Find all the rooms the sender is in
if self.is_interested_in_user(user_id.to_string()): if self.is_interested_in_user(user_id.to_string()):
return True return True
room_ids = await store.get_rooms_for_user(user_id.to_string()) room_ids = await store.get_rooms_for_user(
user_id.to_string(), on_invalidate=cache_context.invalidate
)
# Then find out if the appservice is interested in any of those rooms # Then find out if the appservice is interested in any of those rooms
for room_id in room_ids: for room_id in room_ids: