diff --git a/synapse/util/presentable_names.py b/synapse/util/presentable_names.py
index a6866f6117..f68676e9e7 100644
--- a/synapse/util/presentable_names.py
+++ b/synapse/util/presentable_names.py
@@ -25,7 +25,8 @@ ALIAS_RE = re.compile(r"^#.*:.+$")
ALL_ALONE = "Empty Room"
-def calculate_room_name(room_state, user_id, fallback_to_members=True):
+def calculate_room_name(room_state, user_id, fallback_to_members=True,
+ fallback_to_single_member=True):
"""
Works out a user-facing name for the given room as per Matrix
spec recommendations.
@@ -82,7 +83,10 @@ def calculate_room_name(room_state, user_id, fallback_to_members=True):
):
if ("m.room.member", my_member_event.sender) in room_state:
inviter_member_event = room_state[("m.room.member", my_member_event.sender)]
- return "Invite from %s" % (name_from_member_event(inviter_member_event),)
+ if fallback_to_single_member:
+ return "Invite from %s" % (name_from_member_event(inviter_member_event),)
+ else:
+ return None
else:
return "Room Invite"
@@ -129,6 +133,8 @@ def calculate_room_name(room_state, user_id, fallback_to_members=True):
return name_from_member_event(all_members[0])
else:
return ALL_ALONE
+ elif len(other_members) == 1 and not fallback_to_single_member:
+ return None
else:
return descriptor_from_member_events(other_members)
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