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De-duplicate duplicate handling

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move the "duplicate state event" handling down into `handle_new_client_event`
where it can be shared between multiple call paths.
This commit is contained in:
Richard van der Hoff 2020-10-02 16:45:41 +01:00
parent 0991a2da93
commit b520a1bf5a
2 changed files with 32 additions and 38 deletions
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29
synapse/handlers/room_member.py
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@ -188,16 +188,6 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
require_consent=require_consent,
)
# Check if this event matches the previous membership event for the user.
duplicate = await self.event_creation_handler.deduplicate_state_event(
event, context
)
if duplicate is not None:
# Discard the new event since this membership change is a no-op.
# we know it was persisted, so must have a stream ordering.
assert duplicate.internal_metadata.stream_ordering
return duplicate.event_id, duplicate.internal_metadata.stream_ordering
prev_state_ids = await context.get_prev_state_ids()
prev_member_event_id = prev_state_ids.get((EventTypes.Member, user_id), None)
@ -222,7 +212,7 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
retry_after_ms=int(1000 * (time_allowed - time_now_s))
)
stream_id = await self.event_creation_handler.handle_new_client_event(
result_event = await self.event_creation_handler.handle_new_client_event(
requester, event, context, extra_users=[target], ratelimit=ratelimit,
)
@ -232,7 +222,9 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
if prev_member_event.membership == Membership.JOIN:
await self._user_left_room(target, room_id)
return event.event_id, stream_id
# we know it was persisted, so should have a stream ordering
assert result_event.internal_metadata.stream_ordering
return result_event.event_id, result_event.internal_metadata.stream_ordering
async def copy_room_tags_and_direct_to_room(
self, old_room_id, new_room_id, user_id
@ -673,12 +665,6 @@ class RoomMemberHandler(metaclass=abc.ABCMeta):
else:
requester = types.create_requester(target_user)
prev_event = await self.event_creation_handler.deduplicate_state_event(
event, context
)
if prev_event is not None:
return
prev_state_ids = await context.get_prev_state_ids()
if event.membership == Membership.JOIN:
if requester.is_guest:
@ -1186,10 +1172,13 @@ class RoomMemberMasterHandler(RoomMemberHandler):
context = await self.state_handler.compute_event_context(event)
context.app_service = requester.app_service
stream_id = await self.event_creation_handler.handle_new_client_event(
result_event = await self.event_creation_handler.handle_new_client_event(
requester, event, context, extra_users=[UserID.from_string(target_user)],
)
return event.event_id, stream_id
# we know it was persisted, so must have a stream ordering
assert result_event.internal_metadata.stream_ordering
return result_event.event_id, result_event.internal_metadata.stream_ordering
async def _user_left_room(self, target: UserID, room_id: str) -> None:
"""Implements RoomMemberHandler._user_left_room