RNS-Things/reticulum-meshchatX
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reticulum-meshchatX/meshchat.py

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#!/usr/bin/env python
import argparse
import json
import os
import sys
import threading
import time
from datetime import datetime, timezone
from typing import Callable, List
import RNS
import RNS.vendor.umsgpack as msgpack
import LXMF
from LXMF import LXMRouter
from aiohttp import web, WSMessage, WSMsgType, WSCloseCode
import asyncio
import base64
import webbrowser
from peewee import SqliteDatabase
from serial.tools import list_ports
import database
from src.backend.announce_handler import AnnounceHandler
from src.backend.colour_utils import ColourUtils
from src.backend.lxmf_message_fields import LxmfImageField, LxmfFileAttachmentsField, LxmfFileAttachment, LxmfAudioField
from src.backend.audio_call_manager import AudioCall, AudioCallManager
# NOTE: this is required to be able to pack our app with cxfreeze as an exe, otherwise it can't access bundled assets
# this returns a file path based on if we are running meshchat.py directly, or if we have packed it as an exe with cxfreeze
# https://cx-freeze.readthedocs.io/en/latest/faq.html#using-data-files
def get_file_path(filename):
if getattr(sys, "frozen", False):
datadir = os.path.dirname(sys.executable)
else:
datadir = os.path.dirname(__file__)
return os.path.join(datadir, filename)
class ReticulumMeshChat:
def __init__(self, identity: RNS.Identity, storage_dir, reticulum_config_dir):
# when providing a custom storage_dir, files will be saved as
# <storage_dir>/identities/<identity_hex>/
# <storage_dir>/identities/<identity_hex>/database.db
# if storage_dir is not provided, we will use ./storage instead
# ./storage/identities/<identity_hex>/
# ./storage/identities/<identity_hex>/database.db
# ensure a storage path exists for the loaded identity
self.storage_dir = storage_dir or os.path.join("storage")
self.storage_path = os.path.join(self.storage_dir, "identities", identity.hash.hex())
print("Using Storage Path: {}".format(self.storage_path))
os.makedirs(self.storage_path, exist_ok=True)
# define path to files based on storage path
self.database_path = os.path.join(self.storage_path, "database.db")
lxmf_router_path = os.path.join(self.storage_path, "lxmf_router")
# check if database already exists, before initialization
database_already_exists = os.path.exists(self.database_path)
# init database
sqlite_database = SqliteDatabase(self.database_path)
database.database.initialize(sqlite_database)
self.db = database.database
self.db.connect()
self.db.create_tables([
database.Config,
database.Announce,
database.CustomDestinationDisplayName,
database.LxmfMessage,
database.LxmfConversationReadState,
database.LxmfUserIcon,
])
# init config
self.config = Config()
# if database already existed before init, and we don't have a previous version set, we are on version 1
if database_already_exists and self.config.database_version.get() is None:
self.config.database_version.set(1)
# if database didn't already exist, it was just fully migrated when it was created, so set the current version
if not database_already_exists:
self.config.database_version.set(database.latest_version)
# migrate database
current_database_version = self.config.database_version.get()
migrated_database_version = database.migrate(current_version=current_database_version)
self.config.database_version.set(migrated_database_version)
# vacuum database on start to shrink its file size
sqlite_database.execute_sql("VACUUM")
# lxmf messages in outbound or sending state should be marked as failed when app starts as they are no longer being processed
(database.LxmfMessage.update(state="failed")
.where(database.LxmfMessage.state == "outbound")
.orwhere((database.LxmfMessage.state == "sent") & (database.LxmfMessage.method == "opportunistic"))
.orwhere(database.LxmfMessage.state == "sending").execute())
# init reticulum
self.reticulum = RNS.Reticulum(reticulum_config_dir)
self.identity = identity
# init lxmf router
self.message_router = LXMF.LXMRouter(identity=self.identity, storagepath=lxmf_router_path)
self.message_router.PROCESSING_INTERVAL = 1
# increase limit for incoming lxmf messages (received over a resource), to allow receiving larger attachments
# the lxmf router expects delivery_per_transfer_limit to be provided in kilobytes, so we will do that...
self.message_router.delivery_per_transfer_limit = self.config.lxmf_delivery_transfer_limit_in_bytes.get() / 1000
# register lxmf identity
self.local_lxmf_destination = self.message_router.register_delivery_identity(
identity=self.identity,
display_name=self.config.display_name.get(),
)
# set a callback for when an lxmf message is received
self.message_router.register_delivery_callback(self.on_lxmf_delivery)
# update active propagation node
self.set_active_propagation_node(self.config.lxmf_preferred_propagation_node_destination_hash.get())
# enable propagation node (we don't call with false if disabled, as no need to announce disabled state every launch)
if self.config.lxmf_local_propagation_node_enabled.get():
self.enable_local_propagation_node()
# handle received announces based on aspect
RNS.Transport.register_announce_handler(AnnounceHandler("call.audio", self.on_audio_call_announce_received))
RNS.Transport.register_announce_handler(AnnounceHandler("lxmf.delivery", self.on_lxmf_announce_received))
RNS.Transport.register_announce_handler(AnnounceHandler("lxmf.propagation", self.on_lxmf_propagation_announce_received))
RNS.Transport.register_announce_handler(AnnounceHandler("nomadnetwork.node", self.on_nomadnet_node_announce_received))
# remember websocket clients
self.websocket_clients: List[web.WebSocketResponse] = []
# register audio call identity
self.audio_call_manager = AudioCallManager(identity=self.identity)
self.audio_call_manager.register_incoming_call_callback(self.on_incoming_audio_call)
# start background thread for auto announce loop
thread = threading.Thread(target=asyncio.run, args=(self.announce_loop(),))
thread.daemon = True
thread.start()
# start background thread for auto syncing propagation nodes
thread = threading.Thread(target=asyncio.run, args=(self.announce_sync_propagation_nodes(),))
thread.daemon = True
thread.start()
# gets app version from package.json
def get_app_version(self) -> str:
with open(get_file_path("package.json")) as f:
package_json = json.load(f)
return package_json["version"]
# automatically announces based on user config
async def announce_loop(self):
while True:
should_announce = False
# check if auto announce is enabled
if self.config.auto_announce_enabled.get():
# check if we have announced recently
last_announced_at = self.config.last_announced_at.get()
if last_announced_at is not None:
# determine when next announce should be sent
auto_announce_interval_seconds = self.config.auto_announce_interval_seconds.get()
next_announce_at = last_announced_at + auto_announce_interval_seconds
# we should announce if current time has passed next announce at timestamp
if time.time() > next_announce_at:
should_announce = True
else:
# last announced at is null, so we have never announced, lets do it now
should_announce = True
# announce
if should_announce:
await self.announce()
# wait 1 second before next loop
await asyncio.sleep(1)
# automatically syncs propagation nodes based on user config
async def announce_sync_propagation_nodes(self):
while True:
should_sync = False
# check if auto sync is enabled
auto_sync_interval_seconds = self.config.lxmf_preferred_propagation_node_auto_sync_interval_seconds.get()
if auto_sync_interval_seconds > 0:
# check if we have synced recently
last_synced_at = self.config.lxmf_preferred_propagation_node_last_synced_at.get()
if last_synced_at is not None:
# determine when next sync should happen
next_sync_at = last_synced_at + auto_sync_interval_seconds
# we should sync if current time has passed next sync at timestamp
if time.time() > next_sync_at:
should_sync = True
else:
# last synced at is null, so we have never synced, lets do it now
should_sync = True
# sync
if should_sync:
await self.sync_propagation_nodes()
# wait 1 second before next loop
await asyncio.sleep(1)
# uses the provided destination hash as the active propagation node
def set_active_propagation_node(self, destination_hash: str | None):
# set outbound propagation node
if destination_hash is not None and destination_hash != "":
try:
self.message_router.set_outbound_propagation_node(bytes.fromhex(destination_hash))
except:
# failed to set propagation node, clear it to ensure we don't use an old one by mistake
self.remove_active_propagation_node()
pass
# stop using propagation node
else:
self.remove_active_propagation_node()
# stops the in progress propagation node sync
def stop_propagation_node_sync(self):
self.message_router.cancel_propagation_node_requests()
# stops and removes the active propagation node
def remove_active_propagation_node(self):
# fixme: it's possible for internal transfer state to get stuck if we change propagation node during a sync
# this still happens even if we cancel the propagation node requests
# for now, the user can just manually cancel syncing in the ui if they think it's stuck...
self.stop_propagation_node_sync()
self.message_router.outbound_propagation_node = None
# enables or disables the local lxmf propagation node
def enable_local_propagation_node(self, enabled: bool = True):
try:
if enabled:
self.message_router.enable_propagation()
else:
self.message_router.disable_propagation()
except:
print("failed to enable or disable propagation node")
pass
# handle receiving a new audio call
def on_incoming_audio_call(self, audio_call: AudioCall):
print("on_incoming_audio_call: {}".format(audio_call.link.hash.hex()))
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "incoming_audio_call",
})))
# web server has shutdown, likely ctrl+c, but if we don't do the following, the script never exits
async def shutdown(self, app):
# force close websocket clients
for websocket_client in self.websocket_clients:
await websocket_client.close(code=WSCloseCode.GOING_AWAY)
# stop reticulum
RNS.Transport.detach_interfaces()
self.reticulum.exit_handler()
RNS.exit()
def run(self, host, port, launch_browser: bool):
# create route table
routes = web.RouteTableDef()
# serve index.html
@routes.get("/")
async def index(request):
return web.FileResponse(path=get_file_path("public/index.html"), headers={
# don't allow browser to store page in cache, otherwise new app versions may get stale ui
"Cache-Control": "no-cache, no-store",
})
# serve ping
@routes.get("/api/v1/status")
async def index(request):
return web.json_response({
"status": "ok",
})
# fetch com ports
@routes.get("/api/v1/comports")
async def index(request):
comports = []
for comport in list_ports.comports():
comports.append({
"device": comport.device,
"product": comport.product,
"serial_number": comport.serial_number,
})
return web.json_response({
"comports": comports,
})
# fetch reticulum interfaces
@routes.get("/api/v1/reticulum/interfaces")
async def index(request):
interfaces = {}
if "interfaces" in self.reticulum.config:
interfaces = self.reticulum.config["interfaces"]
return web.json_response({
"interfaces": interfaces,
})
# enable reticulum interface
@routes.post("/api/v1/reticulum/interfaces/enable")
async def index(request):
# get request data
data = await request.json()
interface_name = data.get('name')
# enable interface
if "interfaces" in self.reticulum.config:
interface = self.reticulum.config["interfaces"][interface_name]
if "enabled" in interface:
interface["enabled"] = "true"
if "interface_enabled" in interface:
interface["interface_enabled"] = "true"
# save config
self.reticulum.config.write()
return web.json_response({
"message": "Interface is now enabled",
})
# disable reticulum interface
@routes.post("/api/v1/reticulum/interfaces/disable")
async def index(request):
# get request data
data = await request.json()
interface_name = data.get('name')
# disable interface
if "interfaces" in self.reticulum.config:
interface = self.reticulum.config["interfaces"][interface_name]
if "enabled" in interface:
interface["enabled"] = "false"
if "interface_enabled" in interface:
interface["interface_enabled"] = "false"
# save config
self.reticulum.config.write()
return web.json_response({
"message": "Interface is now disabled",
})
# delete reticulum interface
@routes.post("/api/v1/reticulum/interfaces/delete")
async def index(request):
# get request data
data = await request.json()
interface_name = data.get('name')
# delete interface
if "interfaces" in self.reticulum.config:
del self.reticulum.config["interfaces"][interface_name]
# save config
self.reticulum.config.write()
return web.json_response({
"message": "Interface has been deleted",
})
# add reticulum interface
@routes.post("/api/v1/reticulum/interfaces/add")
async def index(request):
# get request data
data = await request.json()
interface_name = data.get('name')
interface_type = data.get('type')
allow_overwriting_interface = data.get('allow_overwriting_interface', False)
# ensure name is provided
if interface_name is None or interface_name == "":
return web.json_response({
"message": "Name is required",
}, status=422)
# ensure type name provided
if interface_type is None or interface_type == "":
return web.json_response({
"message": "Type is required",
}, status=422)
# get existing interfaces
interfaces = {}
if "interfaces" in self.reticulum.config:
interfaces = self.reticulum.config["interfaces"]
# ensure name is not for an existing interface, to prevent overwriting
if allow_overwriting_interface is False and interface_name in interfaces:
return web.json_response({
"message": "Name is already in use by another interface",
}, status=422)
# get existing interface details if available
interface_details = {}
if interface_name in interfaces:
interface_details = interfaces[interface_name]
# update interface details
interface_details["type"] = interface_type
# if interface doesn't have enabled or interface_enabled setting already, enable it by default
if "enabled" not in interface_details and "interface_enabled" not in interface_details:
interface_details["interface_enabled"] = "true"
# handle tcp client interface
if interface_type == "TCPClientInterface":
interface_target_host = data.get('target_host')
interface_target_port = data.get('target_port')
# ensure target host provided
if interface_target_host is None or interface_target_host == "":
return web.json_response({
"message": "Target Host is required",
}, status=422)
# ensure target port provided
if interface_target_port is None or interface_target_port == "":
return web.json_response({
"message": "Target Port is required",
}, status=422)
interface_details["target_host"] = data.get('target_host')
interface_details["target_port"] = data.get('target_port')
# handle tcp server interface
if interface_type == "TCPServerInterface":
interface_listen_ip = data.get('listen_ip')
interface_listen_port = data.get('listen_port')
# ensure listen ip provided
if interface_listen_ip is None or interface_listen_ip == "":
return web.json_response({
"message": "Listen IP is required",
}, status=422)
# ensure listen port provided
if interface_listen_port is None or interface_listen_port == "":
return web.json_response({
"message": "Listen Port is required",
}, status=422)
interface_details["listen_ip"] = data.get('listen_ip')
interface_details["listen_port"] = data.get('listen_port')
# handle udp interface
if interface_type == "UDPInterface":
interface_listen_ip = data.get('listen_ip')
interface_listen_port = data.get('listen_port')
interface_forward_ip = data.get('forward_ip')
interface_forward_port = data.get('forward_port')
# ensure listen ip provided
if interface_listen_ip is None or interface_listen_ip == "":
return web.json_response({
"message": "Listen IP is required",
}, status=422)
# ensure listen port provided
if interface_listen_port is None or interface_listen_port == "":
return web.json_response({
"message": "Listen Port is required",
}, status=422)
# ensure forward ip provided
if interface_forward_ip is None or interface_forward_ip == "":
return web.json_response({
"message": "Forward IP is required",
}, status=422)
# ensure forward port provided
if interface_forward_port is None or interface_forward_port == "":
return web.json_response({
"message": "Forward Port is required",
}, status=422)
interface_details["listen_ip"] = data.get('listen_ip')
interface_details["listen_port"] = data.get('listen_port')
interface_details["forward_ip"] = data.get('forward_ip')
interface_details["forward_port"] = data.get('forward_port')
# handle rnode interface
if interface_type == "RNodeInterface":
interface_port = data.get('port')
interface_frequency = data.get('frequency')
interface_bandwidth = data.get('bandwidth')
interface_txpower = data.get('txpower')
interface_spreadingfactor = data.get('spreadingfactor')
interface_codingrate = data.get('codingrate')
# ensure port provided
if interface_port is None or interface_port == "":
return web.json_response({
"message": "Port is required",
}, status=422)
# ensure frequency provided
if interface_frequency is None or interface_frequency == "":
return web.json_response({
"message": "Frequency is required",
}, status=422)
# ensure bandwidth provided
if interface_bandwidth is None or interface_bandwidth == "":
return web.json_response({
"message": "Bandwidth is required",
}, status=422)
# ensure txpower provided
if interface_txpower is None or interface_txpower == "":
return web.json_response({
"message": "TX power is required",
}, status=422)
# ensure spreading factor provided
if interface_spreadingfactor is None or interface_spreadingfactor == "":
return web.json_response({
"message": "Spreading Factor is required",
}, status=422)
# ensure coding rate provided
if interface_codingrate is None or interface_codingrate == "":
return web.json_response({
"message": "Coding Rate is required",
}, status=422)
interface_details["port"] = interface_port
interface_details["frequency"] = interface_frequency
interface_details["bandwidth"] = interface_bandwidth
interface_details["txpower"] = interface_txpower
interface_details["spreadingfactor"] = interface_spreadingfactor
interface_details["codingrate"] = interface_codingrate
# merge new interface into existing interfaces
interfaces[interface_name] = interface_details
self.reticulum.config["interfaces"] = interfaces
# save config
self.reticulum.config.write()
if allow_overwriting_interface:
return web.json_response({
"message": "Interface has been saved",
})
else:
return web.json_response({
"message": "Interface has been added",
})
# handle websocket clients
@routes.get("/ws")
async def ws(request):
# prepare websocket response
websocket_response = web.WebSocketResponse(
# set max message size accepted by server to 50 megabytes
max_msg_size=50 * 1024 * 1024,
)
await websocket_response.prepare(request)
# add client to connected clients list
self.websocket_clients.append(websocket_response)
# send config to all clients
await self.send_config_to_websocket_clients()
# handle websocket messages until disconnected
async for msg in websocket_response:
msg: WSMessage = msg
if msg.type == WSMsgType.TEXT:
try:
data = json.loads(msg.data)
await self.on_websocket_data_received(websocket_response, data)
except Exception as e:
# ignore errors while handling message
print("failed to process client message")
print(e)
elif msg.type == WSMsgType.ERROR:
# ignore errors while handling message
print('ws connection error %s' % websocket_response.exception())
# websocket closed
self.websocket_clients.remove(websocket_response)
return websocket_response
# get app info
@routes.get("/api/v1/app/info")
async def index(request):
return web.json_response({
"app_info": {
"version": self.get_app_version(),
"lxmf_version": LXMF.__version__,
"rns_version": RNS.__version__,
"storage_path": self.storage_path,
"database_path": self.database_path,
"database_file_size": os.path.getsize(self.database_path),
"reticulum_config_path": self.reticulum.configpath,
"is_connected_to_shared_instance": self.reticulum.is_connected_to_shared_instance,
"is_transport_enabled": self.reticulum.transport_enabled(),
},
})
# get config
@routes.get("/api/v1/config")
async def index(request):
return web.json_response({
"config": self.get_config_dict(),
})
# update config
@routes.patch("/api/v1/config")
async def index(request):
# get request body as json
data = await request.json()
# update config
await self.update_config(data)
return web.json_response({
"config": self.get_config_dict(),
})
# get calls
@routes.get("/api/v1/calls")
async def index(request):
# get audio calls
audio_calls = []
for audio_call in self.audio_call_manager.audio_calls:
audio_calls.append(self.convert_audio_call_to_dict(audio_call))
return web.json_response({
"audio_calls": audio_calls,
})
# clear call history
@routes.post("/api/v1/calls/clear-call-history")
async def index(request):
# delete inactive calls, which are classed as call history
for audio_call in self.audio_call_manager.audio_calls:
if audio_call.is_active() is False:
self.audio_call_manager.delete_audio_call(audio_call)
return web.json_response({
"message": "Call history has been cleared",
})
# hangup all calls
@routes.get("/api/v1/calls/hangup-all")
async def index(request):
self.audio_call_manager.hangup_all()
return web.json_response({
"message": "All calls have been hungup",
})
# get call
@routes.get("/api/v1/calls/{audio_call_link_hash}")
async def index(request):
# get path params
audio_call_link_hash = request.match_info.get("audio_call_link_hash", "")
# convert hash to bytes
audio_call_link_hash = bytes.fromhex(audio_call_link_hash)
# find audio call
audio_call = self.audio_call_manager.find_audio_call_by_link_hash(audio_call_link_hash)
if audio_call is None:
return web.json_response({
"message": "audio call not found",
}, status=404)
return web.json_response({
"audio_call": self.convert_audio_call_to_dict(audio_call),
})
# delete call
@routes.delete("/api/v1/calls/{audio_call_link_hash}")
async def index(request):
# get path params
audio_call_link_hash = request.match_info.get("audio_call_link_hash", "")
# convert hash to bytes
audio_call_link_hash = bytes.fromhex(audio_call_link_hash)
# delete audio call
self.audio_call_manager.delete_audio_call_by_link_hash(audio_call_link_hash)
return web.json_response({
"message": "audio call deleted",
})
# initiate a call to the provided destination
@routes.get("/api/v1/calls/initiate/{destination_hash}")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
timeout_seconds = int(request.query.get("timeout", 15))
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# initiate audio call
try:
audio_call = await self.audio_call_manager.initiate(destination_hash, timeout_seconds)
return web.json_response({
"audio_call": self.convert_audio_call_to_dict(audio_call),
})
except Exception as e:
return web.json_response({
"message": "Call Failed: {}".format(str(e)),
}, status=503)
# handle websocket client for sending and receiving audio packets in a call
@routes.get("/api/v1/calls/{audio_call_link_hash}/audio")
async def ws(request):
# get path params
audio_call_link_hash = request.match_info.get("audio_call_link_hash", "")
# convert hash to bytes
audio_call_link_hash = bytes.fromhex(audio_call_link_hash)
# find audio call, this will be null until the link is established
audio_call = self.audio_call_manager.find_audio_call_by_link_hash(audio_call_link_hash)
if audio_call is None:
# fixme: web browser expects websocket, so this won't be useful
return web.json_response({
"message": "audio call not found",
}, status=404)
# send audio received from call initiator to call receiver websocket
def on_audio_packet(data):
if websocket_response.closed is False:
try:
asyncio.run(websocket_response.send_bytes(data))
except:
# ignore errors sending audio packets to websocket
pass
# close websocket when call is hungup
def on_hangup():
if websocket_response.closed is False:
try:
asyncio.run(websocket_response.close(code=WSCloseCode.GOING_AWAY))
except:
# ignore errors closing websocket
pass
# register audio packet listener
audio_call.register_audio_packet_listener(on_audio_packet)
audio_call.register_hangup_listener(on_hangup)
# prepare websocket response
websocket_response = web.WebSocketResponse()
await websocket_response.prepare(request)
# handle websocket messages until disconnected
# FIXME: we should send a type with the message, so we can send other data as well
async for msg in websocket_response:
msg: WSMessage = msg
if msg.type == WSMsgType.BINARY:
try:
audio_call.send_audio_packet(msg.data)
except Exception as e:
# ignore errors while handling message
print("failed to process client message")
print(e)
elif msg.type == WSMsgType.ERROR:
# ignore errors while handling message
print('ws connection error %s' % websocket_response.exception())
# unregister audio packet handler now that the websocket has been closed
audio_call.register_audio_packet_listener(on_audio_packet)
return websocket_response
# hangup calls
@routes.get("/api/v1/calls/{audio_call_link_hash}/hangup")
async def index(request):
# get path params
audio_call_link_hash = request.match_info.get("audio_call_link_hash", "")
# convert hash to bytes
audio_call_link_hash = bytes.fromhex(audio_call_link_hash)
# find audio call
audio_call = self.audio_call_manager.find_audio_call_by_link_hash(audio_call_link_hash)
if audio_call is None:
return web.json_response({
"message": "audio call not found",
}, status=404)
# hangup the call
audio_call.hangup()
return web.json_response({
"message": "Call has been hungup",
})
# announce
@routes.get("/api/v1/announce")
async def index(request):
await self.announce()
return web.json_response({
"message": "announcing",
})
# serve announces
@routes.get("/api/v1/announces")
async def index(request):
# get query params
aspect = request.query.get("aspect", None)
identity_hash = request.query.get("identity_hash", None)
limit = request.query.get("limit", None)
# build announces database query
query = database.Announce.select()
# filter by provided aspect
if aspect is not None:
query = query.where(database.Announce.aspect == aspect)
# filter by provided identity hash
if identity_hash is not None:
query = query.where(database.Announce.identity_hash == identity_hash)
# limit results
if limit is not None:
query = query.limit(limit)
# order announces latest to oldest
query_results = query.order_by(database.Announce.updated_at.desc())
# process announces
announces = []
for announce in query_results:
announces.append(self.convert_db_announce_to_dict(announce))
return web.json_response({
"announces": announces,
})
# propagation node status
@routes.get("/api/v1/lxmf/propagation-node/status")
async def index(request):
return web.json_response({
"propagation_node_status": {
"state": self.convert_propagation_node_state_to_string(self.message_router.propagation_transfer_state),
"progress": self.message_router.propagation_transfer_progress * 100, # convert to percentage
"messages_received": self.message_router.propagation_transfer_last_result,
},
})
# sync propagation node
@routes.get("/api/v1/lxmf/propagation-node/sync")
async def index(request):
# ensure propagation node is configured before attempting to sync
if self.message_router.get_outbound_propagation_node() is None:
return web.json_response({
"message": "A propagation node must be configured to sync messages.",
}, status=400)
# request messages from propagation node
await self.sync_propagation_nodes()
return web.json_response({
"message": "Sync is starting",
})
# stop syncing propagation node
@routes.get("/api/v1/lxmf/propagation-node/stop-sync")
async def index(request):
self.stop_propagation_node_sync()
return web.json_response({
"message": "Sync is stopping",
})
# serve propagation nodes
@routes.get("/api/v1/lxmf/propagation-nodes")
async def index(request):
# get query params
limit = request.query.get("limit", None)
# get lxmf.propagation announces
query = database.Announce.select().where(database.Announce.aspect == "lxmf.propagation")
# limit results
if limit is not None:
query = query.limit(limit)
# order announces latest to oldest
query_results = query.order_by(database.Announce.updated_at.desc())
# process announces
lxmf_propagation_nodes = []
for announce in query_results:
# find an lxmf.delivery announce for the same identity hash, so we can use that as an "operater by" name
lxmf_delivery_announce = (database.Announce.select()
.where(database.Announce.aspect == "lxmf.delivery")
.where(database.Announce.identity_hash == announce.identity_hash)
.get_or_none())
# find a nomadnetwork.node announce for the same identity hash, so we can use that as an "operated by" name
nomadnetwork_node_announce = (database.Announce.select()
.where(database.Announce.aspect == "nomadnetwork.node")
.where(database.Announce.identity_hash == announce.identity_hash)
.get_or_none())
# get a display name from other announces belonging to the propagation nodes identity
operator_display_name = None
if lxmf_delivery_announce is not None and lxmf_delivery_announce.app_data is not None:
operator_display_name = self.parse_lxmf_display_name(lxmf_delivery_announce.app_data, None)
elif nomadnetwork_node_announce is not None and nomadnetwork_node_announce.app_data is not None:
operator_display_name = self.parse_nomadnetwork_node_display_name(nomadnetwork_node_announce.app_data, None)
# parse app_data so we can see if propagation is enabled or disabled for this node
is_propagation_enabled = None
per_transfer_limit = None
propagation_node_data = self.parse_lxmf_propagation_node_app_data(announce.app_data)
if propagation_node_data is not None:
is_propagation_enabled = propagation_node_data["enabled"]
per_transfer_limit = propagation_node_data["per_transfer_limit"]
lxmf_propagation_nodes.append({
"destination_hash": announce.destination_hash,
"identity_hash": announce.identity_hash,
"operator_display_name": operator_display_name,
"is_propagation_enabled": is_propagation_enabled,
"per_transfer_limit": per_transfer_limit,
"created_at": announce.created_at,
"updated_at": announce.updated_at,
})
return web.json_response({
"lxmf_propagation_nodes": lxmf_propagation_nodes,
})
# get path to destination
@routes.get("/api/v1/destination/{destination_hash}/path")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# check if user wants to request the path from the network right now
request_query_param = request.query.get("request", "false")
should_request_now = request_query_param == "true" or request_query_param == "1"
if should_request_now:
# determine how long we should wait for a path response
timeout_seconds = int(request.query.get("timeout", 15))
timeout_after_seconds = time.time() + timeout_seconds
# request path if we don't have it
if not RNS.Transport.has_path(destination_hash):
RNS.Transport.request_path(destination_hash)
# wait until we have a path, or give up after the configured timeout
while not RNS.Transport.has_path(destination_hash) and time.time() < timeout_after_seconds:
await asyncio.sleep(0.1)
# ensure path is known
if not RNS.Transport.has_path(destination_hash):
return web.json_response({
"path": None,
})
# determine next hop and hop count
hops = RNS.Transport.hops_to(destination_hash)
next_hop_bytes = self.reticulum.get_next_hop(destination_hash)
# ensure next hop provided
if next_hop_bytes is None:
return web.json_response({
"path": None,
})
next_hop = next_hop_bytes.hex()
next_hop_interface = self.reticulum.get_next_hop_if_name(destination_hash)
return web.json_response({
"path": {
"hops": hops,
"next_hop": next_hop,
"next_hop_interface": next_hop_interface,
},
})
# drop path to destination
@routes.post("/api/v1/destination/{destination_hash}/drop-path")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# drop path
self.reticulum.drop_path(destination_hash)
return web.json_response({
"message": "Path has been dropped",
})
# get signal metrics for a destination by checking the latest announce or lxmf message received from them
@routes.get("/api/v1/destination/{destination_hash}/signal-metrics")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# signal metrics to return
snr = None
rssi = None
quality = None
updated_at = None
# get latest announce from database for the provided destination hash
latest_announce = (database.Announce.select()
.where(database.Announce.destination_hash == destination_hash)
.get_or_none())
# get latest lxmf message from database sent to us from the provided destination hash
latest_lxmf_message = (database.LxmfMessage.select()
.where(database.LxmfMessage.destination_hash == self.local_lxmf_destination.hexhash)
.where(database.LxmfMessage.source_hash == destination_hash)
.order_by(database.LxmfMessage.id.desc())
.get_or_none())
# determine when latest announce was received
latest_announce_at = None
if latest_announce is not None:
latest_announce_at = datetime.fromisoformat(latest_announce.updated_at)
# determine when latest lxmf message was received
latest_lxmf_message_at = None
if latest_lxmf_message is not None:
latest_lxmf_message_at = datetime.fromisoformat(latest_lxmf_message.created_at)
# get signal metrics from latest announce
if latest_announce is not None:
snr = latest_announce.snr
rssi = latest_announce.rssi
quality = latest_announce.quality
# using updated_at from announce because this is when the latest announce was received
updated_at = latest_announce.updated_at
# get signal metrics from latest lxmf message if it's more recent than the announce
if latest_lxmf_message is not None and (latest_announce_at is None or latest_lxmf_message_at > latest_announce_at):
snr = latest_lxmf_message.snr
rssi = latest_lxmf_message.rssi
quality = latest_lxmf_message.quality
# using created_at from lxmf message because this is when the message was received
updated_at = latest_lxmf_message.created_at
return web.json_response({
"signal_metrics": {
"snr": snr,
"rssi": rssi,
"quality": quality,
"updated_at": updated_at,
},
})
# pings an lxmf.delivery destination by sending empty data and waiting for the recipient to send a proof back
# the lxmf router proves all received packets, then drops them if they can't be decoded as lxmf messages
# this allows us to ping/probe any active lxmf.delivery destination and get rtt/snr/rssi data on demand
# https://github.com/markqvist/LXMF/blob/9ff76c0473e9d4107e079f266dd08144bb74c7c8/LXMF/LXMRouter.py#L234
# https://github.com/markqvist/LXMF/blob/9ff76c0473e9d4107e079f266dd08144bb74c7c8/LXMF/LXMRouter.py#L1374
@routes.get("/api/v1/ping/{destination_hash}/lxmf.delivery")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# determine how long until we should time out
timeout_seconds = int(request.query.get("timeout", 15))
timeout_after_seconds = time.time() + timeout_seconds
# request path if we don't have it
if not RNS.Transport.has_path(destination_hash):
RNS.Transport.request_path(destination_hash)
# wait until we have a path, or give up after the configured timeout
while not RNS.Transport.has_path(destination_hash) and time.time() < timeout_after_seconds:
await asyncio.sleep(0.1)
# find destination identity
destination_identity = RNS.Identity.recall(destination_hash)
if destination_identity is None:
return web.json_response({
"message": "Ping failed. Could not find path to destination.",
}, status=503)
# create outbound destination
request_destination = RNS.Destination(
destination_identity,
RNS.Destination.OUT,
RNS.Destination.SINGLE,
"lxmf",
"delivery",
)
# send empty packet to destination
packet = RNS.Packet(request_destination, b"")
receipt = packet.send()
# wait until delivered, or give up after time out
while receipt.status != RNS.PacketReceipt.DELIVERED and time.time() < timeout_after_seconds:
await asyncio.sleep(0.1)
# ping failed if not delivered
if receipt.status != RNS.PacketReceipt.DELIVERED:
return web.json_response({
"message": f"Ping failed. Timed out after {timeout_seconds} seconds.",
}, status=503)
# get number of hops to destination and back from destination
hops_there = RNS.Transport.hops_to(destination_hash)
hops_back = receipt.proof_packet.hops
# get rssi
rssi = receipt.proof_packet.rssi
if rssi is None:
rssi = self.reticulum.get_packet_rssi(receipt.proof_packet.packet_hash)
# get snr
snr = receipt.proof_packet.snr
if snr is None:
snr = self.reticulum.get_packet_snr(receipt.proof_packet.packet_hash)
# get signal quality
quality = receipt.proof_packet.q
if quality is None:
quality = self.reticulum.get_packet_q(receipt.proof_packet.packet_hash)
# get and format round trip time
rtt = receipt.get_rtt()
rtt_milliseconds = round(rtt * 1000, 3)
rtt_duration_string = f"{rtt_milliseconds} ms"
return web.json_response({
"message": f"Valid reply from {receipt.destination.hash.hex()}\nDuration: {rtt_duration_string}\nHops There: {hops_there}\nHops Back: {hops_back}",
"ping_result": {
"rtt": rtt,
"hops_there": hops_there,
"hops_back": hops_back,
"rssi": rssi,
"snr": snr,
"quality": quality,
"receiving_interface": str(receipt.proof_packet.receiving_interface),
},
})
# get custom destination display name
@routes.get("/api/v1/destination/{destination_hash}/custom-display-name")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
return web.json_response({
"custom_display_name": self.get_custom_destination_display_name(destination_hash),
})
# set custom destination display name
@routes.post("/api/v1/destination/{destination_hash}/custom-display-name/update")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# get request data
data = await request.json()
display_name = data.get('display_name')
# update display name if provided
if len(display_name) > 0:
self.db_upsert_custom_destination_display_name(destination_hash, display_name)
return web.json_response({
"message": "Custom display name has been updated",
})
# otherwise remove display name
else:
database.CustomDestinationDisplayName.delete().where(database.CustomDestinationDisplayName.destination_hash == destination_hash).execute()
return web.json_response({
"message": "Custom display name has been removed",
})
# get lxmf stamp cost for the provided lxmf.delivery destination hash
@routes.get("/api/v1/destination/{destination_hash}/lxmf-stamp-info")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# get lxmf stamp cost from announce in database
lxmf_stamp_cost = None
announce = database.Announce.get_or_none(database.Announce.destination_hash == destination_hash.hex())
if announce is not None:
lxmf_stamp_cost = self.parse_lxmf_stamp_cost(announce.app_data)
# get outbound ticket expiry for this lxmf destination
lxmf_outbound_ticket_expiry = self.message_router.get_outbound_ticket_expiry(destination_hash)
return web.json_response({
"lxmf_stamp_info": {
"stamp_cost": lxmf_stamp_cost,
"outbound_ticket_expiry": lxmf_outbound_ticket_expiry,
},
})
# get interface stats
@routes.get("/api/v1/interface-stats")
async def index(request):
# get interface stats
interface_stats = self.reticulum.get_interface_stats()
# ensure transport_id is hex as json_response can't serialize bytes
if "transport_id" in interface_stats:
interface_stats["transport_id"] = interface_stats["transport_id"].hex()
# ensure probe_responder is hex as json_response can't serialize bytes
if "probe_responder" in interface_stats and interface_stats["probe_responder"] is not None:
interface_stats["probe_responder"] = interface_stats["probe_responder"].hex()
# ensure ifac_signature is hex as json_response can't serialize bytes
for interface in interface_stats["interfaces"]:
if "short_name" in interface:
interface["interface_name"] = interface["short_name"]
if "parent_interface_name" in interface and interface["parent_interface_name"] is not None:
interface["parent_interface_hash"] = interface["parent_interface_hash"].hex()
if "ifac_signature" in interface and interface["ifac_signature"]:
interface["ifac_signature"] = interface["ifac_signature"].hex()
if "hash" in interface and interface["hash"]:
interface["hash"] = interface["hash"].hex()
return web.json_response({
"interface_stats": interface_stats,
})
# get path table
@routes.get("/api/v1/path-table")
async def index(request):
# get path table, making sure hash and via are in hex as json_response can't serialize bytes
path_table = []
for path in self.reticulum.get_path_table():
path["hash"] = path["hash"].hex()
path["via"] = path["via"].hex()
path_table.append(path)
return web.json_response({
"path_table": path_table,
})
# send lxmf message
@routes.post("/api/v1/lxmf-messages/send")
async def index(request):
# get request body as json
data = await request.json()
# get delivery method
delivery_method = None
if "delivery_method" in data:
delivery_method = data["delivery_method"]
# get data from json
destination_hash = data["lxmf_message"]["destination_hash"]
content = data["lxmf_message"]["content"]
fields = {}
if "fields" in data["lxmf_message"]:
fields = data["lxmf_message"]["fields"]
# parse image field
image_field = None
if "image" in fields:
image_type = data["lxmf_message"]["fields"]["image"]["image_type"]
image_bytes = base64.b64decode(data["lxmf_message"]["fields"]["image"]["image_bytes"])
image_field = LxmfImageField(image_type, image_bytes)
# parse audio field
audio_field = None
if "audio" in fields:
audio_mode = data["lxmf_message"]["fields"]["audio"]["audio_mode"]
audio_bytes = base64.b64decode(data["lxmf_message"]["fields"]["audio"]["audio_bytes"])
audio_field = LxmfAudioField(audio_mode, audio_bytes)
# parse file attachments field
file_attachments_field = None
if "file_attachments" in fields:
file_attachments = []
for file_attachment in data["lxmf_message"]["fields"]["file_attachments"]:
file_name = file_attachment["file_name"]
file_bytes = base64.b64decode(file_attachment["file_bytes"])
file_attachments.append(LxmfFileAttachment(file_name, file_bytes))
file_attachments_field = LxmfFileAttachmentsField(file_attachments)
try:
# send lxmf message to destination
lxmf_message = await self.send_message(
destination_hash=destination_hash,
content=content,
image_field=image_field,
audio_field=audio_field,
file_attachments_field=file_attachments_field,
delivery_method=delivery_method
)
return web.json_response({
"lxmf_message": self.convert_lxmf_message_to_dict(lxmf_message),
})
except Exception as e:
return web.json_response({
"message": "Sending Failed: {}".format(str(e)),
}, status=503)
# delete lxmf message
@routes.delete("/api/v1/lxmf-messages/{hash}")
async def index(request):
# get path params
hash = request.match_info.get("hash", None)
# hash is required
if hash is None:
return web.json_response({
"message": "hash is required",
}, status=422)
# delete lxmf messages from db where hash matches
database.LxmfMessage.delete().where((database.LxmfMessage.hash == hash)).execute()
return web.json_response({
"message": "ok",
})
# serve lxmf messages for conversation
@routes.get("/api/v1/lxmf-messages/conversation/{destination_hash}")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
order = request.query.get("order", "asc")
count = request.query.get("count")
after_id = request.query.get("after_id")
# get source hash from local lxmf destination
source_hash = self.local_lxmf_destination.hash.hex()
# get lxmf messages from db where "source to destination" or "destination to source" and ordered by oldest to newest
db_lxmf_messages = (database.LxmfMessage.select()
.where((database.LxmfMessage.source_hash == source_hash) & (database.LxmfMessage.destination_hash == destination_hash))
.orwhere((database.LxmfMessage.destination_hash == source_hash) & (database.LxmfMessage.source_hash == destination_hash))
.order_by(database.LxmfMessage.id.asc() if order == "asc" else database.LxmfMessage.id.desc()))
# limit how many messages to return
if count is not None:
db_lxmf_messages = db_lxmf_messages.limit(count)
# only get records after provided id, based on query order
if after_id is not None:
if order == "asc":
db_lxmf_messages = db_lxmf_messages.where((database.LxmfMessage.id > after_id))
else:
db_lxmf_messages = db_lxmf_messages.where((database.LxmfMessage.id < after_id))
# convert to response json
lxmf_messages = []
for db_lxmf_message in db_lxmf_messages:
lxmf_messages.append(self.convert_db_lxmf_message_to_dict(db_lxmf_message))
return web.json_response({
"lxmf_messages": lxmf_messages,
})
# delete lxmf messages for conversation
@routes.delete("/api/v1/lxmf-messages/conversation/{destination_hash}")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# get source hash from local lxmf destination
source_hash = self.local_lxmf_destination.hash.hex()
# delete lxmf messages from db where "source to destination" or "destination to source"
(database.LxmfMessage.delete()
.where((database.LxmfMessage.source_hash == source_hash) & (database.LxmfMessage.destination_hash == destination_hash))
.orwhere((database.LxmfMessage.destination_hash == source_hash) & (database.LxmfMessage.source_hash == destination_hash))
.execute())
return web.json_response({
"message": "ok",
})
# get unqiue lxmf conversations
@routes.get("/api/v1/lxmf/conversations")
async def index(request):
# sql query to fetch unique source/destination hash pairs ordered by the most recently updated message
query = """
WITH NormalizedMessages AS (
SELECT
CASE WHEN source_hash < destination_hash THEN source_hash ELSE destination_hash END AS normalized_source,
CASE WHEN source_hash < destination_hash THEN destination_hash ELSE source_hash END AS normalized_destination,
MAX(created_at) AS most_recent_created_at
FROM lxmf_messages
GROUP BY normalized_source, normalized_destination
)
SELECT
normalized_source AS source_hash,
normalized_destination AS destination_hash,
most_recent_created_at
FROM NormalizedMessages
ORDER BY most_recent_created_at DESC;
"""
# execute sql query
cursor = database.database.execute_sql(query)
# parse results to get a list of conversations we have sent or received a message from
conversations = []
for row in cursor.fetchall():
# get data from row
source_hash = row[0]
destination_hash = row[1]
created_at = row[2]
# determine destination hash of other user
if source_hash == self.local_lxmf_destination.hexhash:
other_user_hash = destination_hash
else:
other_user_hash = source_hash
# find lxmf user icon from database
lxmf_user_icon = None
db_lxmf_user_icon = database.LxmfUserIcon.get_or_none(database.LxmfUserIcon.destination_hash == other_user_hash)
if db_lxmf_user_icon is not None:
lxmf_user_icon = {
"icon_name": db_lxmf_user_icon.icon_name,
"foreground_colour": db_lxmf_user_icon.foreground_colour,
"background_colour": db_lxmf_user_icon.background_colour,
}
# add to conversations
conversations.append({
"display_name": self.get_lxmf_conversation_name(other_user_hash),
"custom_display_name": self.get_custom_destination_display_name(other_user_hash),
"destination_hash": other_user_hash,
"is_unread": self.is_lxmf_conversation_unread(other_user_hash),
"failed_messages_count": self.lxmf_conversation_failed_messages_count(other_user_hash),
"lxmf_user_icon": lxmf_user_icon,
# we say the conversation was updated when the latest message was created
# otherwise this will go crazy when sending a message, as the updated_at on the latest message changes very frequently
"updated_at": created_at,
})
return web.json_response({
"conversations": conversations,
})
# mark lxmf conversation as read
@routes.get("/api/v1/lxmf/conversations/{destination_hash}/mark-as-read")
async def index(request):
# get path params
destination_hash = request.match_info.get("destination_hash", "")
# mark lxmf conversation as read
self.db_mark_lxmf_conversation_as_read(destination_hash)
return web.json_response({
"message": "ok",
})
# called when web app has started
async def on_startup(app):
# auto launch web browser
if launch_browser:
try:
webbrowser.open("http://127.0.0.1:{}".format(port))
except:
print("failed to launch web browser")
# create and run web app
app = web.Application(client_max_size=1024 * 1024 * 50) # allow uploading files up to 50mb
app.add_routes(routes)
app.add_routes([web.static('/', get_file_path("public/"))]) # serve anything in public folder
app.on_shutdown.append(self.shutdown) # need to force close websockets and stop reticulum now
app.on_startup.append(on_startup)
web.run_app(app, host=host, port=port)
# handle announcing
async def announce(self):
# update last announced at timestamp
self.config.last_announced_at.set(int(time.time()))
# send announce for lxmf (ensuring name is updated before announcing)
self.local_lxmf_destination.display_name = self.config.display_name.get()
self.message_router.announce(destination_hash=self.local_lxmf_destination.hash)
# send announce for local propagation node (if enabled)
if self.config.lxmf_local_propagation_node_enabled.get():
self.message_router.announce_propagation_node()
# send announce for audio call
self.audio_call_manager.announce(app_data=self.config.display_name.get().encode("utf-8"))
# tell websocket clients we just announced
await self.send_announced_to_websocket_clients()
# handle syncing propagation nodes
async def sync_propagation_nodes(self):
# update last synced at timestamp
self.config.lxmf_preferred_propagation_node_last_synced_at.set(int(time.time()))
# request messages from propagation node
self.message_router.request_messages_from_propagation_node(self.identity)
# send config to websocket clients (used to tell ui last synced at)
await self.send_config_to_websocket_clients()
async def update_config(self, data):
# update display name in config
if "display_name" in data and data["display_name"] != "":
self.config.display_name.set(data["display_name"])
# update theme in config
if "theme" in data and data["theme"] != "":
self.config.theme.set(data["theme"])
# update auto announce interval
if "auto_announce_interval_seconds" in data:
# auto auto announce interval
auto_announce_interval_seconds = int(data["auto_announce_interval_seconds"])
self.config.auto_announce_interval_seconds.set(data["auto_announce_interval_seconds"])
# enable or disable auto announce based on interval
if auto_announce_interval_seconds > 0:
self.config.auto_announce_enabled.set(True)
else:
self.config.auto_announce_enabled.set(False)
if "auto_resend_failed_messages_when_announce_received" in data:
value = bool(data["auto_resend_failed_messages_when_announce_received"])
self.config.auto_resend_failed_messages_when_announce_received.set(value)
if "allow_auto_resending_failed_messages_with_attachments" in data:
value = bool(data["allow_auto_resending_failed_messages_with_attachments"])
self.config.allow_auto_resending_failed_messages_with_attachments.set(value)
if "auto_send_failed_messages_to_propagation_node" in data:
value = bool(data["auto_send_failed_messages_to_propagation_node"])
self.config.auto_send_failed_messages_to_propagation_node.set(value)
if "show_suggested_community_interfaces" in data:
value = bool(data["show_suggested_community_interfaces"])
self.config.show_suggested_community_interfaces.set(value)
if "lxmf_preferred_propagation_node_destination_hash" in data:
# update config value
value = data["lxmf_preferred_propagation_node_destination_hash"]
self.config.lxmf_preferred_propagation_node_destination_hash.set(value)
# update active propagation node
self.set_active_propagation_node(value)
# update auto sync interval
if "lxmf_preferred_propagation_node_auto_sync_interval_seconds" in data:
value = int(data["lxmf_preferred_propagation_node_auto_sync_interval_seconds"])
self.config.lxmf_preferred_propagation_node_auto_sync_interval_seconds.set(value)
if "lxmf_local_propagation_node_enabled" in data:
# update config value
value = bool(data["lxmf_local_propagation_node_enabled"])
self.config.lxmf_local_propagation_node_enabled.set(value)
# enable or disable local propagation node
self.enable_local_propagation_node(value)
# update lxmf user icon name in config
if "lxmf_user_icon_name" in data:
self.config.lxmf_user_icon_name.set(data["lxmf_user_icon_name"])
# update lxmf user icon foreground colour in config
if "lxmf_user_icon_foreground_colour" in data:
self.config.lxmf_user_icon_foreground_colour.set(data["lxmf_user_icon_foreground_colour"])
# update lxmf user icon background colour in config
if "lxmf_user_icon_background_colour" in data:
self.config.lxmf_user_icon_background_colour.set(data["lxmf_user_icon_background_colour"])
# send config to websocket clients
await self.send_config_to_websocket_clients()
# converts nomadnetwork page variables from a string to a map
# converts: "field1=123|field2=456"
# to the following map:
# - var_field1: 123
# - var_field2: 456
def convert_nomadnet_string_data_to_map(self, path_data: str | None):
data = {}
if path_data is not None:
for field in path_data.split("|"):
if "=" in field:
variable_name, variable_value = field.split("=")
data[f'var_{variable_name}'] = variable_value
else:
print(f"unhandled field: {field}")
return data
def convert_nomadnet_field_data_to_map(self, field_data):
data = {}
if field_data is not None or "{}":
try:
json_data = field_data
if isinstance(json_data, dict):
# add the prefixed keys to the result dictionary
data = {f"field_{key}": value for key, value in json_data.items()}
else:
return None
except Exception as e:
print(f"skipping invalid field data: {e}")
return data
# handle data received from websocket client
async def on_websocket_data_received(self, client, data):
# get type from client data
_type = data["type"]
# handle updating config
if _type == "config.set":
# get config from websocket
config = data["config"]
# update config
await self.update_config(config)
# handle downloading a file from a nomadnet node
elif _type == "nomadnet.file.download":
# get data from websocket client
destination_hash = data["nomadnet_file_download"]["destination_hash"]
file_path = data["nomadnet_file_download"]["file_path"]
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# handle successful file download
def on_file_download_success(file_name, file_bytes):
asyncio.run(client.send_str(json.dumps({
"type": "nomadnet.file.download",
"nomadnet_file_download": {
"status": "success",
"destination_hash": destination_hash.hex(),
"file_path": file_path,
"file_name": file_name,
"file_bytes": base64.b64encode(file_bytes).decode("utf-8"),
},
})))
# handle file download failure
def on_file_download_failure(failure_reason):
asyncio.create_task(client.send_str(json.dumps({
"type": "nomadnet.file.download",
"nomadnet_file_download": {
"status": "failure",
"failure_reason": failure_reason,
"destination_hash": destination_hash.hex(),
"file_path": file_path,
},
})))
# handle file download progress
def on_file_download_progress(progress):
asyncio.run(client.send_str(json.dumps({
"type": "nomadnet.file.download",
"nomadnet_file_download": {
"status": "progress",
"progress": progress,
"destination_hash": destination_hash.hex(),
"file_path": file_path,
},
})))
# todo: handle file download progress
# download the file
downloader = NomadnetFileDownloader(destination_hash, file_path, on_file_download_success, on_file_download_failure, on_file_download_progress)
await downloader.download()
# handle downloading a page from a nomadnet node
elif _type == "nomadnet.page.download":
# get data from websocket client
destination_hash = data["nomadnet_page_download"]["destination_hash"]
page_path = data["nomadnet_page_download"]["page_path"]
field_data = data["nomadnet_page_download"]["field_data"]
combined_data = {}
# parse data from page path
# example: hash:/page/index.mu`field1=123|field2=456
page_data = None
page_path_to_download = page_path
if "`" in page_path:
page_path_parts = page_path.split("`")
page_path_to_download = page_path_parts[0]
page_data = self.convert_nomadnet_string_data_to_map(page_path_parts[1])
# Field data
field_data = self.convert_nomadnet_field_data_to_map(field_data)
# Combine page data and field data
if page_data is not None:
combined_data.update(page_data)
if field_data is not None:
combined_data.update(field_data)
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# handle successful page download
def on_page_download_success(page_content):
asyncio.run(client.send_str(json.dumps({
"type": "nomadnet.page.download",
"nomadnet_page_download": {
"status": "success",
"destination_hash": destination_hash.hex(),
"page_path": page_path,
"page_content": page_content,
},
})))
# handle page download failure
def on_page_download_failure(failure_reason):
asyncio.create_task(client.send_str(json.dumps({
"type": "nomadnet.page.download",
"nomadnet_page_download": {
"status": "failure",
"failure_reason": failure_reason,
"destination_hash": destination_hash.hex(),
"page_path": page_path,
},
})))
# handle page download progress
def on_page_download_progress(progress):
asyncio.run(client.send_str(json.dumps({
"type": "nomadnet.page.download",
"nomadnet_page_download": {
"status": "progress",
"progress": progress,
"destination_hash": destination_hash.hex(),
"page_path": page_path,
},
})))
# todo: handle page download progress
# download the page
downloader = NomadnetPageDownloader(destination_hash, page_path_to_download, combined_data, on_page_download_success, on_page_download_failure, on_page_download_progress)
await downloader.download()
# unhandled type
else:
print("unhandled client message type: " + _type)
# broadcast provided data to all connected websocket clients
async def websocket_broadcast(self, data):
for websocket_client in self.websocket_clients:
try:
await websocket_client.send_str(data)
except:
# do nothing if failed to broadcast to a specific websocket client
pass
# broadcasts config to all websocket clients
async def send_config_to_websocket_clients(self):
await self.websocket_broadcast(json.dumps({
"type": "config",
"config": self.get_config_dict(),
}))
# broadcasts to all websocket clients that we just announced
async def send_announced_to_websocket_clients(self):
await self.websocket_broadcast(json.dumps({
"type": "announced",
}))
# returns a dictionary of config
def get_config_dict(self):
return {
"display_name": self.config.display_name.get(),
"identity_hash": self.identity.hexhash,
"lxmf_address_hash": self.local_lxmf_destination.hexhash,
"audio_call_address_hash": self.audio_call_manager.audio_call_receiver.destination.hexhash,
"auto_announce_enabled": self.config.auto_announce_enabled.get(),
"auto_announce_interval_seconds": self.config.auto_announce_interval_seconds.get(),
"last_announced_at": self.config.last_announced_at.get(),
"theme": self.config.theme.get(),
"auto_resend_failed_messages_when_announce_received": self.config.auto_resend_failed_messages_when_announce_received.get(),
"allow_auto_resending_failed_messages_with_attachments": self.config.allow_auto_resending_failed_messages_with_attachments.get(),
"auto_send_failed_messages_to_propagation_node": self.config.auto_send_failed_messages_to_propagation_node.get(),
"show_suggested_community_interfaces": self.config.show_suggested_community_interfaces.get(),
"lxmf_local_propagation_node_enabled": self.config.lxmf_local_propagation_node_enabled.get(),
"lxmf_local_propagation_node_address_hash": self.message_router.propagation_destination.hexhash,
"lxmf_preferred_propagation_node_destination_hash": self.config.lxmf_preferred_propagation_node_destination_hash.get(),
"lxmf_preferred_propagation_node_auto_sync_interval_seconds": self.config.lxmf_preferred_propagation_node_auto_sync_interval_seconds.get(),
"lxmf_preferred_propagation_node_last_synced_at": self.config.lxmf_preferred_propagation_node_last_synced_at.get(),
"lxmf_user_icon_name": self.config.lxmf_user_icon_name.get(),
"lxmf_user_icon_foreground_colour": self.config.lxmf_user_icon_foreground_colour.get(),
"lxmf_user_icon_background_colour": self.config.lxmf_user_icon_background_colour.get(),
}
# convert audio call to dict
def convert_audio_call_to_dict(self, audio_call: AudioCall):
# get remote identity hash
remote_identity_hash = None
remote_identity = audio_call.get_remote_identity()
if remote_identity is not None:
remote_identity_hash = remote_identity.hash.hex()
# get remote destination hash
# we need to know the remote identity to determine their destination hash
remote_destination_hash = None
remote_destination_hash_hex = None
if remote_identity is not None:
remote_destination_hash = RNS.Destination.hash(remote_identity, "call", "audio")
remote_destination_hash_hex = remote_destination_hash.hex()
# determine path to remote destination
path = None
if remote_destination_hash is not None:
# determine next hop and hop count
hops = RNS.Transport.hops_to(remote_destination_hash)
next_hop_bytes = self.reticulum.get_next_hop(remote_destination_hash)
# ensure next hop provided
if next_hop_bytes is not None:
next_hop = next_hop_bytes.hex()
next_hop_interface = self.reticulum.get_next_hop_if_name(remote_destination_hash)
path = {
"hops": hops,
"next_hop": next_hop,
"next_hop_interface": next_hop_interface,
}
return {
"hash": audio_call.link.hash.hex(),
"remote_destination_hash": remote_destination_hash_hex,
"remote_identity_hash": remote_identity_hash,
"is_active": audio_call.is_active(),
"is_outbound": audio_call.is_outbound,
"path": path,
}
# convert an lxmf message to a dictionary, for sending over websocket
def convert_lxmf_message_to_dict(self, lxmf_message: LXMF.LXMessage):
# handle fields
fields = {}
message_fields = lxmf_message.get_fields()
for field_type in message_fields:
value = message_fields[field_type]
# handle file attachments field
if field_type == LXMF.FIELD_FILE_ATTACHMENTS:
# process file attachments
file_attachments = []
for file_attachment in value:
file_name = file_attachment[0]
file_bytes = base64.b64encode(file_attachment[1]).decode("utf-8")
file_attachments.append({
"file_name": file_name,
"file_bytes": file_bytes,
})
# add to fields
fields["file_attachments"] = file_attachments
# handle image field
if field_type == LXMF.FIELD_IMAGE:
image_type = value[0]
image_bytes = base64.b64encode(value[1]).decode("utf-8")
fields["image"] = {
"image_type": image_type,
"image_bytes": image_bytes,
}
# handle audio field
if field_type == LXMF.FIELD_AUDIO:
audio_mode = value[0]
audio_bytes = base64.b64encode(value[1]).decode("utf-8")
fields["audio"] = {
"audio_mode": audio_mode,
"audio_bytes": audio_bytes,
}
# convert 0.0-1.0 progress to 0.00-100 percentage
progress_percentage = round(lxmf_message.progress * 100, 2)
# get rssi
rssi = lxmf_message.rssi
if rssi is None:
rssi = self.reticulum.get_packet_rssi(lxmf_message.hash)
# get snr
snr = lxmf_message.snr
if snr is None:
snr = self.reticulum.get_packet_snr(lxmf_message.hash)
# get quality
quality = lxmf_message.q
if quality is None:
quality = self.reticulum.get_packet_q(lxmf_message.hash)
return {
"hash": lxmf_message.hash.hex(),
"source_hash": lxmf_message.source_hash.hex(),
"destination_hash": lxmf_message.destination_hash.hex(),
"is_incoming": lxmf_message.incoming,
"state": self.convert_lxmf_state_to_string(lxmf_message),
"progress": progress_percentage,
"method": self.convert_lxmf_method_to_string(lxmf_message),
"delivery_attempts": lxmf_message.delivery_attempts,
"next_delivery_attempt_at": getattr(lxmf_message, "next_delivery_attempt", None), # attribute may not exist yet
"title": lxmf_message.title.decode('utf-8'),
"content": lxmf_message.content.decode('utf-8'),
"fields": fields,
"timestamp": lxmf_message.timestamp,
"rssi": rssi,
"snr": snr,
"quality": quality,
}
# convert lxmf state to a human friendly string
def convert_lxmf_state_to_string(self, lxmf_message: LXMF.LXMessage):
# convert state to string
lxmf_message_state = "unknown"
if lxmf_message.state == LXMF.LXMessage.GENERATING:
lxmf_message_state = "generating"
elif lxmf_message.state == LXMF.LXMessage.OUTBOUND:
lxmf_message_state = "outbound"
elif lxmf_message.state == LXMF.LXMessage.SENDING:
lxmf_message_state = "sending"
elif lxmf_message.state == LXMF.LXMessage.SENT:
lxmf_message_state = "sent"
elif lxmf_message.state == LXMF.LXMessage.DELIVERED:
lxmf_message_state = "delivered"
elif lxmf_message.state == LXMF.LXMessage.FAILED:
lxmf_message_state = "failed"
return lxmf_message_state
# convert lxmf method to a human friendly string
def convert_lxmf_method_to_string(self, lxmf_message: LXMF.LXMessage):
# convert method to string
lxmf_message_method = "unknown"
if lxmf_message.method == LXMF.LXMessage.OPPORTUNISTIC:
lxmf_message_method = "opportunistic"
elif lxmf_message.method == LXMF.LXMessage.DIRECT:
lxmf_message_method = "direct"
elif lxmf_message.method == LXMF.LXMessage.PROPAGATED:
lxmf_message_method = "propagated"
elif lxmf_message.method == LXMF.LXMessage.PAPER:
lxmf_message_method = "paper"
return lxmf_message_method
def convert_propagation_node_state_to_string(self, state):
# map states to strings
state_map = {
LXMRouter.PR_IDLE: "idle",
LXMRouter.PR_PATH_REQUESTED: "path_requested",
LXMRouter.PR_LINK_ESTABLISHING: "link_establishing",
LXMRouter.PR_LINK_ESTABLISHED: "link_established",
LXMRouter.PR_REQUEST_SENT: "request_sent",
LXMRouter.PR_RECEIVING: "receiving",
LXMRouter.PR_RESPONSE_RECEIVED: "response_received",
LXMRouter.PR_COMPLETE: "complete",
LXMRouter.PR_NO_PATH: "no_path",
LXMRouter.PR_LINK_FAILED: "link_failed",
LXMRouter.PR_TRANSFER_FAILED: "transfer_failed",
LXMRouter.PR_NO_IDENTITY_RCVD: "no_identity_received",
LXMRouter.PR_NO_ACCESS: "no_access",
LXMRouter.PR_FAILED: "failed",
}
# return string for state, or fallback to unknown
if state in state_map:
return state_map[state]
else:
return "unknown"
# convert database announce to a dictionary
def convert_db_announce_to_dict(self, announce: database.Announce):
# parse display name from announce
display_name = None
if announce.aspect == "lxmf.delivery":
display_name = self.parse_lxmf_display_name(announce.app_data)
elif announce.aspect == "nomadnetwork.node":
display_name = self.parse_nomadnetwork_node_display_name(announce.app_data)
# find lxmf user icon from database
lxmf_user_icon = None
db_lxmf_user_icon = database.LxmfUserIcon.get_or_none(database.LxmfUserIcon.destination_hash == announce.destination_hash)
if db_lxmf_user_icon is not None:
lxmf_user_icon = {
"icon_name": db_lxmf_user_icon.icon_name,
"foreground_colour": db_lxmf_user_icon.foreground_colour,
"background_colour": db_lxmf_user_icon.background_colour,
}
# get current hops away
hops = RNS.Transport.hops_to(bytes.fromhex(announce.destination_hash))
return {
"id": announce.id,
"destination_hash": announce.destination_hash,
"aspect": announce.aspect,
"identity_hash": announce.identity_hash,
"identity_public_key": announce.identity_public_key,
"app_data": announce.app_data,
"hops": hops,
"rssi": announce.rssi,
"snr": announce.snr,
"quality": announce.quality,
"display_name": display_name,
"custom_display_name": self.get_custom_destination_display_name(announce.destination_hash),
"lxmf_user_icon": lxmf_user_icon,
"created_at": announce.created_at,
"updated_at": announce.updated_at,
}
# convert database lxmf message to a dictionary
def convert_db_lxmf_message_to_dict(self, db_lxmf_message: database.LxmfMessage):
return {
"id": db_lxmf_message.id,
"hash": db_lxmf_message.hash,
"source_hash": db_lxmf_message.source_hash,
"destination_hash": db_lxmf_message.destination_hash,
"is_incoming": db_lxmf_message.is_incoming,
"state": db_lxmf_message.state,
"progress": db_lxmf_message.progress,
"method": db_lxmf_message.method,
"delivery_attempts": db_lxmf_message.delivery_attempts,
"next_delivery_attempt_at": db_lxmf_message.next_delivery_attempt_at,
"title": db_lxmf_message.title,
"content": db_lxmf_message.content,
"fields": json.loads(db_lxmf_message.fields),
"timestamp": db_lxmf_message.timestamp,
"rssi": db_lxmf_message.rssi,
"snr": db_lxmf_message.snr,
"quality": db_lxmf_message.quality,
"created_at": db_lxmf_message.created_at,
"updated_at": db_lxmf_message.updated_at,
}
# updates the lxmf user icon for the provided destination hash
def update_lxmf_user_icon(self, destination_hash: str, icon_name: str, foreground_colour: str, background_colour: str):
# log
print(f"updating lxmf user icon for {destination_hash} to icon_name={icon_name}, foreground_colour={foreground_colour}, background_colour={background_colour}")
# prepare data to insert or update
data = {
"destination_hash": destination_hash,
"icon_name": icon_name,
"foreground_colour": foreground_colour,
"background_colour": background_colour,
"updated_at": datetime.now(timezone.utc),
}
# upsert to database
query = database.LxmfUserIcon.insert(data)
query = query.on_conflict(conflict_target=[database.LxmfUserIcon.destination_hash], update=data)
query.execute()
# handle an lxmf delivery from reticulum
# NOTE: cant be async, as Reticulum doesn't await it
def on_lxmf_delivery(self, lxmf_message: LXMF.LXMessage):
try:
# upsert lxmf message to database
self.db_upsert_lxmf_message(lxmf_message)
# update lxmf user icon if icon appearance field is available
try:
message_fields = lxmf_message.get_fields()
if LXMF.FIELD_ICON_APPEARANCE in message_fields:
icon_appearance = message_fields[LXMF.FIELD_ICON_APPEARANCE]
icon_name = icon_appearance[0]
foreground_colour = "#" + icon_appearance[1].hex()
background_colour = "#" + icon_appearance[2].hex()
self.update_lxmf_user_icon(lxmf_message.source_hash.hex(), icon_name, foreground_colour, background_colour)
except Exception as e:
print("failed to update lxmf user icon from lxmf message")
print(e)
pass
# find message from database
db_lxmf_message = database.LxmfMessage.get_or_none(database.LxmfMessage.hash == lxmf_message.hash.hex())
if db_lxmf_message is None:
return
# send received lxmf message data to all websocket clients
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "lxmf.delivery",
"lxmf_message": self.convert_db_lxmf_message_to_dict(db_lxmf_message),
})))
except Exception as e:
# do nothing on error
print("lxmf_delivery error: {}".format(e))
# handle delivery status update for an outbound lxmf message
def on_lxmf_sending_state_updated(self, lxmf_message):
# upsert lxmf message to database
self.db_upsert_lxmf_message(lxmf_message)
# send lxmf message state to all websocket clients
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "lxmf_message_state_updated",
"lxmf_message": self.convert_lxmf_message_to_dict(lxmf_message),
})))
# handle delivery failed for an outbound lxmf message
def on_lxmf_sending_failed(self, lxmf_message):
# check if this failed message should fall back to sending via a propagation node
if lxmf_message.state == LXMF.LXMessage.FAILED and hasattr(lxmf_message, "try_propagation_on_fail") and lxmf_message.try_propagation_on_fail:
self.send_failed_message_via_propagation_node(lxmf_message)
# update state
self.on_lxmf_sending_state_updated(lxmf_message)
# sends a previously failed message via a propagation node
def send_failed_message_via_propagation_node(self, lxmf_message: LXMF.LXMessage):
# reset internal message state
lxmf_message.packed = None
lxmf_message.delivery_attempts = 0
if hasattr(lxmf_message, "next_delivery_attempt"):
del lxmf_message.next_delivery_attempt
# this message should now be sent via a propagation node
lxmf_message.desired_method = LXMF.LXMessage.PROPAGATED
lxmf_message.try_propagation_on_fail = False
# resend message
self.message_router.handle_outbound(lxmf_message)
# upserts the provided lxmf message to the database
def db_upsert_lxmf_message(self, lxmf_message: LXMF.LXMessage):
# convert lxmf message to dict
lxmf_message_dict = self.convert_lxmf_message_to_dict(lxmf_message)
# prepare data to insert or update
data = {
"hash": lxmf_message_dict["hash"],
"source_hash": lxmf_message_dict["source_hash"],
"destination_hash": lxmf_message_dict["destination_hash"],
"is_incoming": lxmf_message_dict["is_incoming"],
"state": lxmf_message_dict["state"],
"progress": lxmf_message_dict["progress"],
"method": lxmf_message_dict["method"],
"delivery_attempts": lxmf_message_dict["delivery_attempts"],
"next_delivery_attempt_at": lxmf_message_dict["next_delivery_attempt_at"],
"title": lxmf_message_dict["title"],
"content": lxmf_message_dict["content"],
"fields": json.dumps(lxmf_message_dict["fields"]),
"timestamp": lxmf_message_dict["timestamp"],
"rssi": lxmf_message_dict["rssi"],
"snr": lxmf_message_dict["snr"],
"quality": lxmf_message_dict["quality"],
"updated_at": datetime.now(timezone.utc),
}
# upsert to database
query = database.LxmfMessage.insert(data)
query = query.on_conflict(conflict_target=[database.LxmfMessage.hash], update=data)
query.execute()
# upserts the provided announce to the database
def db_upsert_announce(self, identity: RNS.Identity, destination_hash: bytes, aspect: str, app_data: bytes, announce_packet_hash: bytes):
# get rssi, snr and signal quality if available
rssi = self.reticulum.get_packet_rssi(announce_packet_hash)
snr = self.reticulum.get_packet_snr(announce_packet_hash)
quality = self.reticulum.get_packet_q(announce_packet_hash)
# prepare data to insert or update
data = {
"destination_hash": destination_hash.hex(),
"aspect": aspect,
"identity_hash": identity.hash.hex(),
"identity_public_key": base64.b64encode(identity.get_public_key()).decode("utf-8"),
"rssi": rssi,
"snr": snr,
"quality": quality,
"updated_at": datetime.now(timezone.utc),
}
# only set app data if provided, as we don't want to wipe existing data when we request keys from the network
if app_data is not None:
# save app data as base64 string
data["app_data"] = base64.b64encode(app_data).decode("utf-8")
# upsert to database
query = database.Announce.insert(data)
query = query.on_conflict(conflict_target=[database.Announce.destination_hash], update=data)
query.execute()
# upserts a custom destination display name to the database
def db_upsert_custom_destination_display_name(self, destination_hash: str, display_name: str):
# prepare data to insert or update
data = {
"destination_hash": destination_hash,
"display_name": display_name,
"updated_at": datetime.now(timezone.utc),
}
# upsert to database
query = database.CustomDestinationDisplayName.insert(data)
query = query.on_conflict(conflict_target=[database.CustomDestinationDisplayName.destination_hash], update=data)
query.execute()
# upserts lxmf conversation read state to the database
def db_mark_lxmf_conversation_as_read(self, destination_hash: str):
# prepare data to insert or update
data = {
"destination_hash": destination_hash,
"last_read_at": datetime.now(timezone.utc),
"updated_at": datetime.now(timezone.utc),
}
# upsert to database
query = database.LxmfConversationReadState.insert(data)
query = query.on_conflict(conflict_target=[database.LxmfConversationReadState.destination_hash], update=data)
query.execute()
# handle sending an lxmf message to reticulum
async def send_message(self, destination_hash: str, content: str,
image_field: LxmfImageField = None,
audio_field: LxmfAudioField = None,
file_attachments_field: LxmfFileAttachmentsField = None,
delivery_method: str = None) -> LXMF.LXMessage:
# convert destination hash to bytes
destination_hash = bytes.fromhex(destination_hash)
# determine when to timeout finding path
timeout_after_seconds = time.time() + 10
# check if we have a path to the destination
if not RNS.Transport.has_path(destination_hash):
# we don't have a path, so we need to request it
RNS.Transport.request_path(destination_hash)
# wait until we have a path, or give up after the configured timeout
while not RNS.Transport.has_path(destination_hash) and time.time() < timeout_after_seconds:
await asyncio.sleep(0.1)
# find destination identity from hash
destination_identity = RNS.Identity.recall(destination_hash)
if destination_identity is None:
# we have to bail out of sending, since we don't have the identity/path yet
raise Exception("Could not find path to destination. Try again later.")
# create destination for recipients lxmf delivery address
lxmf_destination = RNS.Destination(destination_identity, RNS.Destination.OUT, RNS.Destination.SINGLE, "lxmf", "delivery")
# determine how the user wants to send the message
desired_delivery_method = None
if delivery_method == "direct":
desired_delivery_method = LXMF.LXMessage.DIRECT
elif delivery_method == "opportunistic":
desired_delivery_method = LXMF.LXMessage.OPPORTUNISTIC
elif delivery_method == "propagated":
desired_delivery_method = LXMF.LXMessage.PROPAGATED
# determine how to send the message if the user didn't provide a method
if desired_delivery_method is None:
# send messages over a direct link by default
desired_delivery_method = LXMF.LXMessage.DIRECT
if not self.message_router.delivery_link_available(destination_hash) and RNS.Identity.current_ratchet_id(destination_hash) != None:
# since there's no link established to the destination, it's faster to send opportunistically
# this is because it takes several packets to establish a link, and then we still have to send the message over it
# oppotunistic mode will send the message in a single packet (if the message is small enough, otherwise it falls back to a direct link)
# we will only do this if an encryption ratchet is available, so single packet delivery is more secure
desired_delivery_method = LXMF.LXMessage.OPPORTUNISTIC
# create lxmf message
lxmf_message = LXMF.LXMessage(lxmf_destination, self.local_lxmf_destination, content, desired_method=desired_delivery_method)
lxmf_message.try_propagation_on_fail = self.config.auto_send_failed_messages_to_propagation_node.get()
lxmf_message.fields = {}
# add file attachments field
if file_attachments_field is not None:
# create array of [[file_name, file_bytes], [file_name, file_bytes], ...]
file_attachments = []
for file_attachment in file_attachments_field.file_attachments:
file_attachments.append([file_attachment.file_name, file_attachment.file_bytes])
# set field attachments field
lxmf_message.fields[LXMF.FIELD_FILE_ATTACHMENTS] = file_attachments
# add image field
if image_field is not None:
lxmf_message.fields[LXMF.FIELD_IMAGE] = [
image_field.image_type,
image_field.image_bytes,
]
# add audio field
if audio_field is not None:
lxmf_message.fields[LXMF.FIELD_AUDIO] = [
audio_field.audio_mode,
audio_field.audio_bytes,
]
# add icon appearance if configured
# fixme: we could save a tiny amount of bandwidth here, but this requires more effort...
# we could keep track of when the icon appearance was last sent to this destination, and when it last changed
# we could save 6 bytes for the 2x colours, and also however long the icon name is, but not today!
lxmf_user_icon_name = self.config.lxmf_user_icon_name.get()
lxmf_user_icon_foreground_colour = self.config.lxmf_user_icon_foreground_colour.get()
lxmf_user_icon_background_colour = self.config.lxmf_user_icon_background_colour.get()
if (lxmf_user_icon_name is not None
and lxmf_user_icon_foreground_colour is not None
and lxmf_user_icon_background_colour is not None):
lxmf_message.fields[LXMF.FIELD_ICON_APPEARANCE] = [
lxmf_user_icon_name,
ColourUtils.hex_colour_to_byte_array(lxmf_user_icon_foreground_colour),
ColourUtils.hex_colour_to_byte_array(lxmf_user_icon_background_colour),
]
# register delivery callbacks
lxmf_message.register_delivery_callback(self.on_lxmf_sending_state_updated)
lxmf_message.register_failed_callback(self.on_lxmf_sending_failed)
# send lxmf message to be routed to destination
self.message_router.handle_outbound(lxmf_message)
# upsert lxmf message to database
self.db_upsert_lxmf_message(lxmf_message)
# tell all websocket clients that old failed message was deleted so it can remove from ui
await self.websocket_broadcast(json.dumps({
"type": "lxmf_message_created",
"lxmf_message": self.convert_lxmf_message_to_dict(lxmf_message),
}))
# handle lxmf message progress loop without blocking or awaiting
# otherwise other incoming websocket packets will not be processed until sending is complete
# which results in the next message not showing up until the first message is finished
asyncio.create_task(self.handle_lxmf_message_progress(lxmf_message))
return lxmf_message
# updates lxmf message in database and broadcasts to websocket until it's delivered, or it fails
async def handle_lxmf_message_progress(self, lxmf_message):
# FIXME: there's no register_progress_callback on the lxmf message, so manually send progress until delivered, propagated or failed
# we also can't use on_lxmf_sending_state_updated method to do this, because of async/await issues...
should_update_message = True
while should_update_message:
# wait 1 second between sending updates
await asyncio.sleep(1)
# upsert lxmf message to database (as we want to update the progress in database too)
self.db_upsert_lxmf_message(lxmf_message)
# send update to websocket clients
await self.websocket_broadcast(json.dumps({
"type": "lxmf_message_state_updated",
"lxmf_message": self.convert_lxmf_message_to_dict(lxmf_message),
}))
# check message state
has_delivered = lxmf_message.state == LXMF.LXMessage.DELIVERED
has_propagated = lxmf_message.state == LXMF.LXMessage.SENT and lxmf_message.method == LXMF.LXMessage.PROPAGATED
has_failed = lxmf_message.state == LXMF.LXMessage.FAILED
# check if we should stop updating
if has_delivered or has_propagated or has_failed:
should_update_message = False
# handle an announce received from reticulum, for an audio call address
# NOTE: cant be async, as Reticulum doesn't await it
def on_audio_call_announce_received(self, aspect, destination_hash, announced_identity, app_data, announce_packet_hash):
# log received announce
print("Received an announce from " + RNS.prettyhexrep(destination_hash) + " for [call.audio]")
# upsert announce to database
self.db_upsert_announce(announced_identity, destination_hash, aspect, app_data, announce_packet_hash)
# find announce from database
announce = database.Announce.get_or_none(database.Announce.destination_hash == destination_hash.hex())
if announce is None:
return
# send database announce to all websocket clients
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "announce",
"announce": self.convert_db_announce_to_dict(announce),
})))
# handle an announce received from reticulum, for an lxmf address
# NOTE: cant be async, as Reticulum doesn't await it
def on_lxmf_announce_received(self, aspect, destination_hash, announced_identity, app_data, announce_packet_hash):
# log received announce
print("Received an announce from " + RNS.prettyhexrep(destination_hash) + " for [lxmf.delivery]")
# upsert announce to database
self.db_upsert_announce(announced_identity, destination_hash, aspect, app_data, announce_packet_hash)
# find announce from database
announce = database.Announce.get_or_none(database.Announce.destination_hash == destination_hash.hex())
if announce is None:
return
# send database announce to all websocket clients
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "announce",
"announce": self.convert_db_announce_to_dict(announce),
})))
# resend all failed messages that were intended for this destination
if self.config.auto_resend_failed_messages_when_announce_received.get():
asyncio.run(self.resend_failed_messages_for_destination(destination_hash.hex()))
# handle an announce received from reticulum, for an lxmf propagation node address
# NOTE: cant be async, as Reticulum doesn't await it
def on_lxmf_propagation_announce_received(self, aspect, destination_hash, announced_identity, app_data, announce_packet_hash):
# log received announce
print("Received an announce from " + RNS.prettyhexrep(destination_hash) + " for [lxmf.propagation]")
# upsert announce to database
self.db_upsert_announce(announced_identity, destination_hash, aspect, app_data, announce_packet_hash)
# find announce from database
announce = database.Announce.get_or_none(database.Announce.destination_hash == destination_hash.hex())
if announce is None:
return
# send database announce to all websocket clients
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "announce",
"announce": self.convert_db_announce_to_dict(announce),
})))
# resends all messages that previously failed to send to the provided destination hash
async def resend_failed_messages_for_destination(self, destination_hash: str):
# get messages that failed to send to this destination
failed_messages = (database.LxmfMessage.select()
.where(database.LxmfMessage.state == "failed")
.where(database.LxmfMessage.destination_hash == destination_hash)
.order_by(database.LxmfMessage.id.asc()))
# resend failed messages
for failed_message in failed_messages:
try:
# parse fields as json
fields = json.loads(failed_message.fields)
# parse image field
image_field = None
if "image" in fields:
image_field = LxmfImageField(fields["image"]["image_type"], base64.b64decode(fields["image"]["image_bytes"]))
# parse audio field
audio_field = None
if "audio" in fields:
audio_field = LxmfAudioField(fields["audio"]["audio_mode"], base64.b64decode(fields["audio"]["audio_bytes"]))
# parse file attachments field
file_attachments_field = None
if "file_attachments" in fields:
file_attachments = []
for file_attachment in fields["file_attachments"]:
file_attachments.append(LxmfFileAttachment(file_attachment["file_name"], base64.b64decode(file_attachment["file_bytes"])))
file_attachments_field = LxmfFileAttachmentsField(file_attachments)
# don't resend message with attachments if not allowed
if not self.config.allow_auto_resending_failed_messages_with_attachments.get():
if image_field is not None or audio_field is not None or file_attachments_field is not None:
print("Not resending failed message with attachments, as setting is disabled")
continue
# send new message with failed message content
await self.send_message(
failed_message.destination_hash,
failed_message.content,
image_field,
audio_field,
file_attachments_field,
)
# remove original failed message from database
database.LxmfMessage.delete().where((database.LxmfMessage.hash == failed_message.hash)).execute()
# tell all websocket clients that old failed message was deleted so it can remove from ui
await self.websocket_broadcast(json.dumps({
"type": "lxmf_message_deleted",
"hash": failed_message.hash,
}))
except Exception as e:
print("Error resending failed message: " + str(e))
pass
# handle an announce received from reticulum, for a nomadnet node
# NOTE: cant be async, as Reticulum doesn't await it
def on_nomadnet_node_announce_received(self, aspect, destination_hash, announced_identity, app_data, announce_packet_hash):
# log received announce
print("Received an announce from " + RNS.prettyhexrep(destination_hash) + " for [nomadnetwork.node]")
# upsert announce to database
self.db_upsert_announce(announced_identity, destination_hash, aspect, app_data, announce_packet_hash)
# find announce from database
announce = database.Announce.get_or_none(database.Announce.destination_hash == destination_hash.hex())
if announce is None:
return
# send database announce to all websocket clients
asyncio.run(self.websocket_broadcast(json.dumps({
"type": "announce",
"announce": self.convert_db_announce_to_dict(announce),
})))
# gets the custom display name a user has set for the provided destination hash
def get_custom_destination_display_name(self, destination_hash: str):
# get display name from database
db_destination_display_name = database.CustomDestinationDisplayName.get_or_none(database.CustomDestinationDisplayName.destination_hash == destination_hash)
if db_destination_display_name is not None:
return db_destination_display_name.display_name
return None
# get name to show for an lxmf conversation
# currently, this will use the app data from the most recent announce
# TODO: we should fetch this from our contacts database, when it gets implemented, and if not found, fallback to app data
def get_lxmf_conversation_name(self, destination_hash):
# get lxmf.delivery announce from database for the provided destination hash
lxmf_announce = (database.Announce.select()
.where(database.Announce.aspect == "lxmf.delivery")
.where(database.Announce.destination_hash == destination_hash)
.get_or_none())
# if app data is available in database, it should be base64 encoded text that was announced
# we will return the parsed lxmf display name as the conversation name
if lxmf_announce is not None and lxmf_announce.app_data is not None:
return self.parse_lxmf_display_name(app_data_base64=lxmf_announce.app_data)
# announce did not have app data, so provide a fallback name
return "Anonymous Peer"
# reads the lxmf display name from the provided base64 app data
def parse_lxmf_display_name(self, app_data_base64: str, default_value: str | None = "Anonymous Peer"):
try:
app_data_bytes = base64.b64decode(app_data_base64)
display_name = LXMF.display_name_from_app_data(app_data_bytes)
if display_name is not None:
return display_name
except:
pass
return default_value
# reads the lxmf stamp cost from the provided base64 app data
def parse_lxmf_stamp_cost(self, app_data_base64: str):
try:
app_data_bytes = base64.b64decode(app_data_base64)
return LXMF.stamp_cost_from_app_data(app_data_bytes)
except:
return None
# reads the nomadnetwork node display name from the provided base64 app data
def parse_nomadnetwork_node_display_name(self, app_data_base64: str, default_value: str | None = "Anonymous Node"):
try:
app_data_bytes = base64.b64decode(app_data_base64)
return app_data_bytes.decode("utf-8")
except:
return default_value
# parses lxmf propagation node app data
def parse_lxmf_propagation_node_app_data(self, app_data_base64: str):
try:
app_data_bytes = base64.b64decode(app_data_base64)
data = msgpack.unpackb(app_data_bytes)
return {
"enabled": bool(data[0]),
"timebase": int(data[1]),
"per_transfer_limit": int(data[2]),
}
except:
return None
# returns true if the conversation has messages newer than the last read at timestamp
def is_lxmf_conversation_unread(self, destination_hash):
# get lxmf conversation read state from database for the provided destination hash
lxmf_conversation_read_state = (database.LxmfConversationReadState.select()
.where(database.LxmfConversationReadState.destination_hash == destination_hash)
.get_or_none())
# get most recent incoming message from destination hash
latest_incoming_lxmf_message = (database.LxmfMessage.select()
.where(database.LxmfMessage.source_hash == destination_hash)
.order_by(database.LxmfMessage.created_at.desc())
.get_or_none())
# there's no incoming message, so it can't be unread
if latest_incoming_lxmf_message is None:
return False
# user has never read this conversation, so it's unread
if lxmf_conversation_read_state is None:
return True
# conversation is unread if last read at is before the latest incoming message creation date
conversation_last_read_at = datetime.strptime(lxmf_conversation_read_state.last_read_at, "%Y-%m-%d %H:%M:%S.%f%z")
conversation_latest_message_at = datetime.strptime(latest_incoming_lxmf_message.created_at, "%Y-%m-%d %H:%M:%S.%f%z")
return conversation_last_read_at < conversation_latest_message_at
# returns number of messages that failed to send in a conversation
def lxmf_conversation_failed_messages_count(self, destination_hash: str):
return (database.LxmfMessage.select()
.where(database.LxmfMessage.state == "failed")
.where(database.LxmfMessage.destination_hash == destination_hash)
.count())
# find an interface by name
def find_interface_by_name(self, name: str):
for interface in RNS.Transport.interfaces:
interface_name = str(interface)
if name == interface_name:
return interface
return None
# class to manage config stored in database
class Config:
@staticmethod
def get(key: str, default_value=None) -> str | None:
# get config value from database
config_item = database.Config.get_or_none(database.Config.key == key)
# return value if available
if config_item is not None:
return config_item.value
# fallback to returning default value
return default_value
@staticmethod
def set(key: str, value: str | None):
# if none, delete the config entry
if value is None:
database.Config.delete().where(database.Config.key == key).execute()
return
# prepare data to insert or update
data = {
"key": key,
"value": value,
"updated_at": datetime.now(timezone.utc),
}
# upsert to database
query = database.Config.insert(data)
query = query.on_conflict(conflict_target=[database.Config.key], update=data)
query.execute()
# handle config values that should be strings
class StringConfig:
def __init__(self, key: str, default_value: str | None = None):
self.key = key
self.default_value = default_value
def get(self, default_value: str = None) -> str | None:
_default_value = default_value or self.default_value
return Config.get(self.key, default_value=_default_value)
def set(self, value: str | None):
Config.set(self.key, value)
# handle config values that should be bools
class BoolConfig:
def __init__(self, key: str, default_value: bool = False):
self.key = key
self.default_value = default_value
def get(self) -> bool:
# get string value, or return default
config_value = Config.get(self.key, default_value=None)
if config_value is None:
return self.default_value
return config_value == "true"
def set(self, value: bool):
# determine string value for bool
if value is True:
config_value = "true"
else:
config_value = "false"
Config.set(self.key, config_value)
# handle config values that should be integers
class IntConfig:
def __init__(self, key: str, default_value: int | None = 0):
self.key = key
self.default_value = default_value
def get(self) -> int | None:
# get string value, or return default
config_value = Config.get(self.key, default_value=None)
if config_value is None:
return self.default_value
return int(config_value)
def set(self, value: int):
Config.set(self.key, str(value))
# all possible config items
database_version = IntConfig("database_version", None)
display_name = StringConfig("display_name", "Anonymous Peer")
auto_announce_enabled = BoolConfig("auto_announce_enabled", False)
auto_announce_interval_seconds = IntConfig("auto_announce_interval_seconds", 0)
last_announced_at = IntConfig("last_announced_at", None)
theme = StringConfig("theme", "light")
auto_resend_failed_messages_when_announce_received = BoolConfig("auto_resend_failed_messages_when_announce_received", True)
allow_auto_resending_failed_messages_with_attachments = BoolConfig("allow_auto_resending_failed_messages_with_attachments", False)
auto_send_failed_messages_to_propagation_node = BoolConfig("auto_send_failed_messages_to_propagation_node", False)
show_suggested_community_interfaces = BoolConfig("show_suggested_community_interfaces", True)
lxmf_delivery_transfer_limit_in_bytes = IntConfig("lxmf_delivery_transfer_limit_in_bytes", 1000 * 1000 * 10) # 10MB
lxmf_preferred_propagation_node_destination_hash = StringConfig("lxmf_preferred_propagation_node_destination_hash", None)
lxmf_preferred_propagation_node_auto_sync_interval_seconds = IntConfig("lxmf_preferred_propagation_node_auto_sync_interval_seconds", 0)
lxmf_preferred_propagation_node_last_synced_at = IntConfig("lxmf_preferred_propagation_node_last_synced_at", None)
lxmf_local_propagation_node_enabled = BoolConfig("lxmf_local_propagation_node_enabled", False)
lxmf_user_icon_name = StringConfig("lxmf_user_icon_name", None)
lxmf_user_icon_foreground_colour = StringConfig("lxmf_user_icon_foreground_colour", None)
lxmf_user_icon_background_colour = StringConfig("lxmf_user_icon_background_colour", None)
# FIXME: we should probably set this as an instance variable of ReticulumMeshChat so it has a proper home, and pass it in to the constructor?
nomadnet_cached_links = {}
class NomadnetDownloader:
def __init__(self, destination_hash: bytes, path: str, data: str|None, on_download_success: Callable[[bytes], None], on_download_failure: Callable[[str], None], on_progress_update: Callable[[float], None], timeout: int|None = None):
self.app_name = "nomadnetwork"
self.aspects = "node"
self.destination_hash = destination_hash
self.path = path
self.data = data
self.timeout = timeout
self.on_download_success = on_download_success
self.on_download_failure = on_download_failure
self.on_progress_update = on_progress_update
# setup link to destination and request download
async def download(self, path_lookup_timeout: int = 15, link_establishment_timeout: int = 15):
# use existing established link if it's active
if self.destination_hash in nomadnet_cached_links:
link = nomadnet_cached_links[self.destination_hash]
if link.status is RNS.Link.ACTIVE:
print("[NomadnetDownloader] using existing link for request")
self.link_established(link)
return
# determine when to timeout
timeout_after_seconds = time.time() + path_lookup_timeout
# check if we have a path to the destination
if not RNS.Transport.has_path(self.destination_hash):
# we don't have a path, so we need to request it
RNS.Transport.request_path(self.destination_hash)
# wait until we have a path, or give up after the configured timeout
while not RNS.Transport.has_path(self.destination_hash) and time.time() < timeout_after_seconds:
await asyncio.sleep(0.1)
# if we still don't have a path, we can't establish a link, so bail out
if not RNS.Transport.has_path(self.destination_hash):
self.on_download_failure("Could not find path to destination.")
return
# create destination to nomadnet node
identity = RNS.Identity.recall(self.destination_hash)
destination = RNS.Destination(
identity,
RNS.Destination.OUT,
RNS.Destination.SINGLE,
self.app_name,
self.aspects,
)
# create link to destination
print("[NomadnetDownloader] establishing new link for request")
link = RNS.Link(destination, established_callback=self.link_established)
# determine when to timeout
timeout_after_seconds = time.time() + link_establishment_timeout
# wait until we have established a link, or give up after the configured timeout
while link.status is not RNS.Link.ACTIVE and time.time() < timeout_after_seconds:
await asyncio.sleep(0.1)
# if we still haven't established a link, bail out
if link.status is not RNS.Link.ACTIVE:
self.on_download_failure("Could not establish link to destination.")
# link to destination was established, we should now request the download
def link_established(self, link):
# cache link for using in future requests
nomadnet_cached_links[self.destination_hash] = link
# request download over link
link.request(
self.path,
data=self.data,
response_callback=self.on_response,
failed_callback=self.on_failed,
progress_callback=self.on_progress,
timeout=self.timeout,
)
# handle successful download
def on_response(self, request_receipt):
self.on_download_success(request_receipt.response)
# handle failure
def on_failed(self, request_receipt=None):
self.on_download_failure("request_failed")
# handle download progress
def on_progress(self, request_receipt):
self.on_progress_update(request_receipt.progress)
class NomadnetPageDownloader(NomadnetDownloader):
def __init__(self, destination_hash: bytes, page_path: str, data: str | None, on_page_download_success: Callable[[str], None], on_page_download_failure: Callable[[str], None], on_progress_update: Callable[[float], None], timeout: int|None = None):
self.on_page_download_success = on_page_download_success
self.on_page_download_failure = on_page_download_failure
super().__init__(destination_hash, page_path, data, self.on_download_success, self.on_download_failure, on_progress_update, timeout)
# page download was successful, decode the response and send to provided callback
def on_download_success(self, response_bytes):
micron_markup_response = response_bytes.decode("utf-8")
self.on_page_download_success(micron_markup_response)
# page download failed, send error to provided callback
def on_download_failure(self, failure_reason):
self.on_page_download_failure(failure_reason)
class NomadnetFileDownloader(NomadnetDownloader):
def __init__(self, destination_hash: bytes, page_path: str, on_file_download_success: Callable[[str, bytes], None], on_file_download_failure: Callable[[str], None], on_progress_update: Callable[[float], None], timeout: int|None = None):
self.on_file_download_success = on_file_download_success
self.on_file_download_failure = on_file_download_failure
super().__init__(destination_hash, page_path, None, self.on_download_success, self.on_download_failure, on_progress_update, timeout)
# file download was successful, decode the response and send to provided callback
def on_download_success(self, response):
file_name: str = response[0]
file_data: bytes = response[1]
self.on_file_download_success(file_name, file_data)
# page download failed, send error to provided callback
def on_download_failure(self, failure_reason):
self.on_file_download_failure(failure_reason)
def main():
# parse command line args
parser = argparse.ArgumentParser(description="ReticulumMeshChat")
parser.add_argument("--host", nargs='?', default="127.0.0.1", type=str, help="The address the web server should listen on.")
parser.add_argument("--port", nargs='?', default="8000", type=int, help="The port the web server should listen on.")
parser.add_argument("--headless", action='store_true', help="Web browser will not automatically launch when this flag is passed.")
parser.add_argument("--identity-file", type=str, help="Path to a Reticulum Identity file to use as your LXMF address.")
parser.add_argument("--identity-base64", type=str, help="A base64 encoded Reticulum Identity to use as your LXMF address.")
parser.add_argument("--generate-identity-file", type=str, help="Generates and saves a new Reticulum Identity to the provided file path and then exits.")
parser.add_argument("--generate-identity-base64", action='store_true', help="Outputs a randomly generated Reticulum Identity as base64 and then exits.")
parser.add_argument("--reticulum-config-dir", type=str, help="Path to a Reticulum config directory for the RNS stack to use (e.g: ~/.reticulum)")
parser.add_argument("--storage-dir", type=str, help="Path to a directory for storing databases and config files (default: ./storage)")
parser.add_argument("--test-exception-message", type=str, help="Throws an exception. Used for testing the electron error dialog")
parser.add_argument('args', nargs=argparse.REMAINDER) # allow unknown command line args
args = parser.parse_args()
# check if we want to test exception messages
if args.test_exception_message is not None:
raise Exception(args.test_exception_message)
# util to generate reticulum identity and save to file without using rnid
if args.generate_identity_file is not None:
# do not overwrite existing files, otherwise user could lose existing keys
if os.path.exists(args.generate_identity_file):
print("DANGER: the provided identity file path already exists, not overwriting!")
return
# generate a new identity and save to provided file path
identity = RNS.Identity(create_keys=True)
with open(args.generate_identity_file, "wb") as file:
file.write(identity.get_private_key())
print("A new Reticulum Identity has been saved to: {}".format(args.generate_identity_file))
return
# util to generate reticulum identity as base64 without using rnid
if args.generate_identity_base64 is True:
identity = RNS.Identity(create_keys=True)
print(base64.b64encode(identity.get_private_key()).decode("utf-8"))
return
# use provided identity, or fallback to a random one
if args.identity_file is not None:
identity = RNS.Identity(create_keys=False)
identity.load(args.identity_file)
print("Reticulum Identity <{}> has been loaded from file {}.".format(identity.hash.hex(), args.identity_file))
elif args.identity_base64 is not None:
identity = RNS.Identity(create_keys=False)
identity.load_private_key(base64.b64decode(args.identity_base64))
print("Reticulum Identity <{}> has been loaded from base64.".format(identity.hash.hex()))
else:
# ensure provided storage dir exists, or the default storage dir exists
base_storage_dir = args.storage_dir or os.path.join("storage")
os.makedirs(base_storage_dir, exist_ok=True)
# configure path to default identity file
default_identity_file = os.path.join(base_storage_dir, "identity")
# if default identity file does not exist, generate a new identity and save it
if not os.path.exists(default_identity_file):
identity = RNS.Identity(create_keys=True)
with open(default_identity_file, "wb") as file:
file.write(identity.get_private_key())
print("Reticulum Identity <{}> has been randomly generated and saved to {}.".format(identity.hash.hex(), default_identity_file))
# default identity file exists, load it
identity = RNS.Identity(create_keys=False)
identity.load(default_identity_file)
print("Reticulum Identity <{}> has been loaded from file {}.".format(identity.hash.hex(), default_identity_file))
# init app
reticulum_meshchat = ReticulumMeshChat(identity, args.storage_dir, args.reticulum_config_dir)
reticulum_meshchat.run(args.host, args.port, launch_browser=args.headless is False)
if __name__ == "__main__":
main()
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