From eebd76609a51e2cda45a3a7d4fb410014c15fd44 Mon Sep 17 00:00:00 2001 From: Lloyd Date: Tue, 25 Nov 2025 09:24:15 +0000 Subject: [PATCH] JWT token refresh mechanism in letsmesh --- repeater/data_acquisition/letsmesh_handler.py | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/repeater/data_acquisition/letsmesh_handler.py b/repeater/data_acquisition/letsmesh_handler.py index 208ef34..98ecc82 100644 --- a/repeater/data_acquisition/letsmesh_handler.py +++ b/repeater/data_acquisition/letsmesh_handler.py @@ -152,6 +152,14 @@ class MeshCoreToMqttJwtPusher: logging.warning(f"Disconnected (rc={rc})") self._running = False + def _refresh_jwt_token(self): + """Refresh JWT token for MQTT authentication""" + token = self._generate_jwt() + username = f"v1_{self.public_key}" + self.client.username_pw_set(username=username, password=token) + self._connect_time = datetime.now(UTC) + logging.info("JWT token refreshed") + # ---------------------------------------------------------------- # Connect using WebSockets + TLS + MeshCore token auth # ---------------------------------------------------------------- @@ -197,16 +205,12 @@ class MeshCoreToMqttJwtPusher: while self._running: try: - # Reconnect before JWT expires (at 80% of expiry time) + # Refresh JWT token before it expires (at 80% of expiry time) if self._connect_time: elapsed = (datetime.now(UTC) - self._connect_time).total_seconds() expiry_seconds = self.jwt_expiry_minutes * 60 if elapsed >= expiry_seconds * 0.8: - logging.info("Reconnecting to refresh JWT token...") - self.client.disconnect() - time.sleep(1) - self.connect() - continue + self._refresh_jwt_token() self.publish_status( state="online", origin=self.node_name, radio_config=self.radio_config