From d0c713cc85f094c323b2ba3f02d8ac411a7f0705 Mon Sep 17 00:00:00 2001 From: Sean Quah <8349537+squahtx@users.noreply.github.com> Date: Fri, 10 Feb 2023 23:29:00 +0000 Subject: Return read-only collections from `@cached` methods (#13755) It's important that collections returned from `@cached` methods are not modified, otherwise future retrievals from the cache will return the modified collection. This applies to the return values from `@cached` methods and the values inside the dictionaries returned by `@cachedList` methods. It's not necessary for the dictionaries returned by `@cachedList` methods themselves to be read-only. Signed-off-by: Sean Quah Co-authored-by: David Robertson --- synapse/config/room_directory.py | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'synapse/config/room_directory.py') diff --git a/synapse/config/room_directory.py b/synapse/config/room_directory.py index 3ed236217f..8666c22f01 100644 --- a/synapse/config/room_directory.py +++ b/synapse/config/room_directory.py @@ -13,7 +13,7 @@ # See the License for the specific language governing permissions and # limitations under the License. -from typing import Any, List +from typing import Any, Collection from matrix_common.regex import glob_to_regex @@ -70,7 +70,7 @@ class RoomDirectoryConfig(Config): return False def is_publishing_room_allowed( - self, user_id: str, room_id: str, aliases: List[str] + self, user_id: str, room_id: str, aliases: Collection[str] ) -> bool: """Checks if the given user is allowed to publish the room @@ -122,7 +122,7 @@ class _RoomDirectoryRule: except Exception as e: raise ConfigError("Failed to parse glob into regex") from e - def matches(self, user_id: str, room_id: str, aliases: List[str]) -> bool: + def matches(self, user_id: str, room_id: str, aliases: Collection[str]) -> bool: """Tests if this rule matches the given user_id, room_id and aliases. Args: -- cgit 1.4.1