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Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/handlers/devicemessage.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/synapse/handlers/devicemessage.py b/synapse/handlers/devicemessage.py index 79be7c97c8..e56bdb4072 100644 --- a/synapse/handlers/devicemessage.py +++ b/synapse/handlers/devicemessage.py @@ -236,6 +236,13 @@ class DeviceMessageHandler: local_messages = {} remote_messages: Dict[str, Dict[str, Dict[str, JsonDict]]] = {} for user_id, by_device in messages.items(): + if not UserID.is_valid(user_id): + logger.warning( + "Ignoring attempt to send device message to invalid user: %r", + user_id, + ) + continue + # add an opentracing log entry for each message for device_id, message_content in by_device.items(): log_kv( |