Do not show invite-only rooms in spaces summary (unless joined/invited). (#10109)

changelog.d/10109.bugfix

@@ -0,0 +1 @@
+Fix a bug introduced in v1.35.0 where invite-only rooms would be shown to users in a space who were not invited.

synapse/handlers/space_summary.py

@@ -26,7 +26,6 @@ from synapse.api.constants import (
     HistoryVisibility,
     Membership,
 )
-from synapse.api.errors import AuthError
 from synapse.events import EventBase
 from synapse.events.utils import format_event_for_client_v2
 from synapse.types import JsonDict
@@ -456,15 +455,15 @@ class SpaceSummaryHandler:
                     return True
 
             # Otherwise, check if they should be allowed access via membership in a space.
-            try:
-                await self._event_auth_handler.check_restricted_join_rules(
-                    state_ids, room_version, requester, member_event
+            if self._event_auth_handler.has_restricted_join_rules(
+                state_ids, room_version
+            ):
+                allowed_spaces = (
+                    await self._event_auth_handler.get_spaces_that_allow_join(state_ids)
                 )
-            except AuthError:
-                # The user doesn't have access due to spaces, but might have access
-                # another way. Keep trying.
-                pass
-            else:
+                if await self._event_auth_handler.is_user_in_rooms(
+                    allowed_spaces, requester
+                ):
                     return True
 
         # If this is a request over federation, check if the host is in the room or