telemeshtastic/main.py

121 lines
3.1 KiB
Python

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
STORAGE_FILE = 'data/data.json'
storage = dict(nodes={})
def save_data():
with open(STORAGE_FILE, 'w') as f:
json.dump(storage, f, sort_keys=True, indent=4)
try:
storage = json.load(open(STORAGE_FILE))
except FileNotFoundError:
save_data()
bot = TelegramClient('data/bot', settings.API_ID, settings.API_HASH).start(bot_token=settings.API_TOKEN)
def int_to_mesh_id(num):
# converts signed 32-bit ints to unsigned hex meshtastic IDs
# example: -697240346 to !d670f4e6
hex_str = hex(num & 0xFFFFFFFF)
return '!' + hex_str[2:]
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']
sender = data['from']
except KeyError:
logging.info('Invalid payload: %s', str(data))
return
sender_id = int_to_mesh_id(sender)
try:
from_name = storage['nodes'][sender_id]['long_name']
except KeyError:
from_name = 'Unknown sender'
logging.info('Channel message from %s: %s', from_name, msg_text)
msg = from_name + ': ' + msg_text
await bot.send_message(settings.CHAT_ID, msg)
async def process_info(data):
try:
node_id = data['payload']['id']
long_name = data['payload']['longname']
short_name = data['payload']['shortname']
except KeyError:
logging.info('Invalid payload: %s', str(data))
return
logging.info('Node %s info: %s (%s)', node_id, long_name, short_name)
storage['nodes'][node_id] = dict(
node_id=node_id,
long_name=long_name,
short_name=short_name,
)
save_data()
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)
if msg_type == 'nodeinfo':
await process_info(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.create_task(fetch_mqtt())
bot.run_until_disconnected()