Finish prototype Meshtastic-Telegram bridge

main.py

@@ -0,0 +1,70 @@
+import os
+DEBUG = os.environ.get('DEBUG')
+
+import logging
+logging.basicConfig(
+    format='[%(asctime)s] %(levelname)s %(module)s/%(funcName)s - %(message)s',
+    level=logging.DEBUG if DEBUG else logging.INFO)
+
+import json
+from telethon import TelegramClient, events
+from asyncio_mqtt import Client
+
+import settings
+
+bot = TelegramClient('data/bot', settings.API_ID, settings.API_HASH).start(bot_token=settings.API_TOKEN)
+
+async def process_text(data):
+    msg_to = data.get('to', None)
+
+    if msg_to != -1:
+        logging.debug('Message not for channel: %s', str(data))
+        return
+
+    try:
+        msg_text = data['payload']['text']
+    except KeyError:
+        logging.info('Invalid payload: %s', str(data))
+        return
+
+    logging.info('Channel message: %s', msg_text)
+    await bot.send_message(settings.CHAT_ID, msg_text)
+
+
+async def process_mqtt(message):
+    try:
+        text = message.payload.decode()
+    except UnicodeDecodeError:
+        logging.info('Problem decoding unicode: %s', message.payload)
+        return
+
+    topic = message.topic
+    logging.debug('MQTT topic: %s, message: %s', topic, text)
+
+    try:
+        data = json.loads(text)
+    except json.JSONDecodeError:
+        logging.info('Problem decoding json: %s', text)
+        return
+
+    if type(data) != dict or 'id' not in data:
+        logging.info('Not valid Meshtastic message: %s', text)
+        return
+
+    msg_type = data.get('type', '')
+
+    if msg_type == 'text':
+        await process_text(data)
+    else:
+        logging.debug('Ignored message type %s: %s', msg_type, text)
+        return
+
+async def fetch_mqtt():
+    async with Client('localhost') as client:
+        async with client.filtered_messages('msh/+/json/#') as messages:
+            await client.subscribe('msh/+/json/#')
+            async for message in messages:
+                await process_mqtt(message)
+
+with bot:
+    bot.loop.run_until_complete(fetch_mqtt())

settings.py.example

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+API_ID = 0
+API_HASH = ''
+API_TOKEN = ''
+
+CHAT_ID = 0