From 89e8b98b6522dc9fafd5c32efe7a84dc9a31246a Mon Sep 17 00:00:00 2001 From: Sean Quah <8349537+squahtx@users.noreply.github.com> Date: Thu, 8 Sep 2022 15:55:03 +0100 Subject: [PATCH] Avoid raising errors due to malformed IDs in `get_current_hosts_in_room` (#13748) Handle malformed user IDs with no colons in `get_current_hosts_in_room`. It's not currently possible for a malformed user ID to join a room, so this error would never be hit. Signed-off-by: Sean Quah --- changelog.d/13748.misc | 1 + synapse/storage/databases/main/roommember.py | 5 ++++- 2 files changed, 5 insertions(+), 1 deletion(-) create mode 100644 changelog.d/13748.misc diff --git a/changelog.d/13748.misc b/changelog.d/13748.misc new file mode 100644 index 000000000000..2f419bb659a1 --- /dev/null +++ b/changelog.d/13748.misc @@ -0,0 +1 @@ +Avoid raising an error due to malformed user IDs in `get_current_hosts_in_room`. Malformed user IDs cannot currently join a room, so this error would not be hit. diff --git a/synapse/storage/databases/main/roommember.py b/synapse/storage/databases/main/roommember.py index a77e49dc66e3..e6b87010a96a 100644 --- a/synapse/storage/databases/main/roommember.py +++ b/synapse/storage/databases/main/roommember.py @@ -1044,6 +1044,8 @@ async def get_current_hosts_in_room(self, room_id: str) -> List[str]: # We use a `Set` just for fast lookups domain_set: Set[str] = set() for u in users: + if ":" not in u: + continue domain = get_domain_from_id(u) if domain not in domain_set: domain_set.add(domain) @@ -1077,7 +1079,8 @@ def get_current_hosts_in_room_txn(txn: LoggingTransaction) -> List[str]: ORDER BY min(e.depth) ASC; """ txn.execute(sql, (room_id,)) - return [d for d, in txn] + # `server_domain` will be `NULL` for malformed MXIDs with no colons. + return [d for d, in txn if d is not None] return await self.db_pool.runInteraction( "get_current_hosts_in_room", get_current_hosts_in_room_txn