Bugfix: formatting fix, replaced envelope test

src/mesh_persist/db_functions.py

@@ -1,6 +1,6 @@
 """Database Functions.
 
-This module contains the database functions that store various types of 
+This module contains the database functions that store various types of
 Meshtastic packets to the PostgreSQL database.
 """
 

src/mesh_persist/mesh_persist.py

@@ -34,7 +34,6 @@ def __init__(self) -> None:
 
     def load_mqtt_config(self, filename: str = "mesh_persist.ini", section: str = "mqtt") -> dict:
         """Reads configfile configuration for mqtt server."""
-        self.logger.info("Reading config file...")
         parser = ConfigParser()
         parser.read(filename)
 
@@ -49,7 +48,6 @@ def load_mqtt_config(self, filename: str = "mesh_persist.ini", section: str = "m
             self.logger.fatal(err)
             sys.exit(1)
 
-        self.logger.info("Read config file.")
         return config
 
     def on_message(  # noqa: C901
@@ -61,7 +59,13 @@ def on_message(  # noqa: C901
     ) -> None:
         """Callback function when message received from MQTT server."""
         service_envelope = mqtt_pb2.ServiceEnvelope()
-        if service_envelope is None:
+        if service_envelope is not None:
+            try:
+                se = service_envelope.ParseFromString(message.payload)
+            except (DecodeError, Exception):
+                self.logger.exception("Exception in initial Service Envelope decode")
+                return
+        else:
             return
 
         msg_pkt = service_envelope.packet