google-labs-jules[bot]
c7ae0f2c4e
This commit introduces a MVP for the sovereign computing hackathon. It provides a Python-based bridge between a local Meshtastic node and an internet-connected XMPP Multi-User Chat room. Features: - `bridge.py`: Uses `meshtastic` and `slixmpp` to bridge messages bidirectionally. - Properly handles asynchronous/synchronous impedance mismatch between XMPP and serial interfaces. - Avoids infinite loop echo chambers. - `flake.nix`: Packages the Python script and its dependencies. - Exposes a NixOS module for configuring the bridge as a persistent systemd service. - Requires `--password-file` to prevent exposing XMPP passwords in process listings. - `README.md`: Explains architecture, usage, and how to configure the NixOS module. Co-authored-by: jamessucla <2191476+jamessucla@users.noreply.github.com>
114 lines
4.1 KiB
Python
114 lines
4.1 KiB
Python
import sys
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import time
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import logging
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import asyncio
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from pubsub import pub
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import meshtastic
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import meshtastic.serial_interface
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import slixmpp
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logging.basicConfig(level=logging.INFO, format='%(levelname)-8s %(message)s')
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class SovereignBridge(slixmpp.ClientXMPP):
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def __init__(self, jid, password, room, nick):
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super().__init__(jid, password)
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self.room = room
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self.nick = nick
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self.meshtastic_interface = None
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# Plugins for MUC
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self.register_plugin('xep_0030') # Service Discovery
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self.register_plugin('xep_0045') # Multi-User Chat
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self.register_plugin('xep_0199') # XMPP Ping
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self.add_event_handler("session_start", self.start)
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self.add_event_handler("groupchat_message", self.muc_message)
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# Setup Meshtastic pubsub listeners
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pub.subscribe(self.on_meshtastic_receive, "meshtastic.receive.text")
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async def start(self, event):
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self.send_presence()
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await self.get_roster()
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self.plugin['xep_0045'].join_muc(self.room, self.nick)
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logging.info(f"Joined XMPP MUC: {self.room} as {self.nick}")
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def muc_message(self, msg):
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# Ignore our own messages to avoid loops
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if msg['mucnick'] == self.nick:
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return
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body = msg['body']
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sender = msg['mucnick']
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logging.info(f"[XMPP -> Meshtastic] {sender}: {body}")
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if self.meshtastic_interface:
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# Run the synchronous meshtastic call in a thread pool to avoid blocking asyncio
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asyncio.ensure_future(
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asyncio.to_thread(self._send_to_meshtastic, f"{sender}: {body}")
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)
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def _send_to_meshtastic(self, msg_text):
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try:
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self.meshtastic_interface.sendText(msg_text)
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except Exception as e:
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logging.error(f"Error sending to Meshtastic: {e}")
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def on_meshtastic_receive(self, packet, interface):
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try:
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if 'decoded' in packet and 'text' in packet['decoded']:
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text = packet['decoded']['text']
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sender_id = packet.get('fromId', 'Unknown')
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logging.info(f"[Meshtastic -> XMPP] {sender_id}: {text}")
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# Forward to XMPP MUC safely from the meshtastic pubsub thread
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self.loop.call_soon_threadsafe(self._send_xmpp_message, sender_id, text)
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except Exception as e:
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logging.error(f"Error processing Meshtastic packet: {e}")
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def _send_xmpp_message(self, sender_id, text):
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try:
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msg = self.make_message(mto=self.room, mbody=f"[{sender_id}] {text}", mtype='groupchat')
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msg.send()
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except Exception as e:
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logging.error(f"Error sending XMPP message: {e}")
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def connect_meshtastic(self):
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logging.info("Connecting to Meshtastic node...")
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try:
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# Connect to the first available serial port
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self.meshtastic_interface = meshtastic.serial_interface.SerialInterface()
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logging.info("Connected to Meshtastic node.")
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except Exception as e:
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logging.error(f"Could not connect to Meshtastic node: {e}")
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sys.exit(1)
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def main():
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import argparse
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parser = argparse.ArgumentParser(description="Meshtastic <-> XMPP Bridge")
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parser.add_argument("-j", "--jid", required=True, help="JID to use")
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parser.add_argument("-P", "--password-file", required=False, help="File containing password to use")
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parser.add_argument("-p", "--password", required=False, help="Password to use")
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parser.add_argument("-r", "--room", required=True, help="MUC room to join")
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parser.add_argument("-n", "--nick", required=True, help="MUC nickname")
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args = parser.parse_args()
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password = args.password
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if args.password_file:
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with open(args.password_file, 'r') as f:
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password = f.read().strip()
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if not password:
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parser.error("Either --password or --password-file is required")
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xmpp = SovereignBridge(args.jid, password, args.room, args.nick)
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xmpp.connect_meshtastic()
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logging.info("Connecting to XMPP server...")
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xmpp.connect()
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xmpp.process(forever=True)
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if __name__ == '__main__':
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main()
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