FreeDATA/tnc/daemon.py

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
"""
daemon.py
Author: DJ2LS, January 2022
daemon for providing basic information for the tnc like audio or serial devices
"""
import argparse
import threading
import socketserver
import time
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import sys
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import subprocess
import ujson as json
import psutil
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import serial.tools.list_ports
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import static
import crcengine
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import re
import structlog
import log_handler
import helpers
import os
import queue
import audio
import sock
import atexit
import signal
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import multiprocessing
# signal handler for closing aplication
def signal_handler(sig, frame):
"""
signal handler for closing the network socket on app exit
Args:
sig:
frame:
Returns: system exit
"""
print('Closing daemon...')
sock.CLOSE_SIGNAL = True
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
class DAEMON():
"""
daemon class
"""
def __init__(self):
# load crc engine
self.crc_algorithm = crcengine.new('crc16-ccitt-false') # load crc8 library
self.daemon_queue = sock.DAEMON_QUEUE
update_audio_devices = threading.Thread(target=self.update_audio_devices, name="UPDATE_AUDIO_DEVICES", daemon=True)
update_audio_devices.start()
update_serial_devices = threading.Thread(target=self.update_serial_devices, name="UPDATE_SERIAL_DEVICES", daemon=True)
update_serial_devices.start()
worker = threading.Thread(target=self.worker, name="WORKER", daemon=True)
worker.start()
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def update_audio_devices(self):
"""
update audio devices and set to static
"""
while 1:
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try:
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if not static.TNCSTARTED:
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static.AUDIO_INPUT_DEVICES, static.AUDIO_OUTPUT_DEVICES = audio.get_audio_devices()
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except Exception as e:
print(e)
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time.sleep(1)
def update_serial_devices(self):
"""
update serial devices and set to static
"""
while 1:
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try:
#print("update serial")
serial_devices = []
ports = serial.tools.list_ports.comports()
for port, desc, hwid in ports:
# calculate hex of hwid if we have unique names
crc_hwid = self.crc_algorithm(bytes(hwid, encoding='utf-8'))
crc_hwid = crc_hwid.to_bytes(2, byteorder='big')
crc_hwid = crc_hwid.hex()
description = desc + ' [' + crc_hwid + ']'
serial_devices.append({"port": str(port), "description": str(description) })
static.SERIAL_DEVICES = serial_devices
time.sleep(1)
except Exception as e:
print(e)
def worker(self):
"""
a worker for the received commands
"""
while 1:
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try:
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data = self.daemon_queue.get()
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# data[1] mycall
# data[2] mygrid
# data[3] rx_audio
# data[4] tx_audio
# data[5] devicename
# data[6] deviceport
# data[7] serialspeed
# data[8] pttprotocol
# data[9] pttport
# data[10] data_bits
# data[11] stop_bits
# data[12] handshake
# data[13] radiocontrol
# data[14] rigctld_ip
# data[15] rigctld_port
# data[16] send_scatter
# data[17] send_fft
# data[18] low_bandwith_mode
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if data[0] == 'STARTTNC':
structlog.get_logger("structlog").warning("[DMN] Starting TNC", rig=data[5], port=data[6])
# list of parameters, necessary for running subprocess command as a list
options = []
options.append('--port')
options.append(str(static.DAEMONPORT - 1))
options.append('--mycall')
options.append(data[1])
options.append('--mygrid')
options.append(data[2])
options.append('--rx')
options.append(data[3])
options.append('--tx')
options.append(data[4])
# if radiocontrol != disabled
# this should hopefully avoid a ton of problems if we are just running in
# disabled mode
if data[13] != 'disabled':
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options.append('--devicename')
options.append(data[5])
options.append('--deviceport')
options.append(data[6])
options.append('--serialspeed')
options.append(data[7])
options.append('--pttprotocol')
options.append(data[8])
options.append('--pttport')
options.append(data[9])
options.append('--data_bits')
options.append(data[10])
options.append('--stop_bits')
options.append(data[11])
options.append('--handshake')
options.append(data[12])
options.append('--radiocontrol')
options.append(data[13])
if data[13] != 'rigctld':
options.append('--rigctld_ip')
options.append(data[14])
options.append('--rigctld_port')
options.append(data[15])
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if data[16] == 'True':
options.append('--scatter')
if data[17] == 'True':
options.append('--fft')
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if data[18] == 'True':
options.append('--500hz')
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# try running tnc from binary, else run from source
# this helps running the tnc in a developer environment
try:
command = []
if sys.platform == 'linux' or sys.platform == 'darwin':
command.append('./freedata-tnc')
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elif sys.platform == 'win32' or sys.platform == 'win64':
command.append('freedata-tnc.exe')
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command += options
p = subprocess.Popen(command)
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atexit.register(p.kill)
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structlog.get_logger("structlog").info("[DMN] TNC started", path="binary")
except:
command = []
if sys.platform == 'linux' or sys.platform == 'darwin':
command.append('python3')
elif sys.platform == 'win32' or sys.platform == 'win64':
command.append('python')
command.append('main.py')
command += options
p = subprocess.Popen(command)
atexit.register(p.kill)
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structlog.get_logger("structlog").info("[DMN] TNC started", path="source")
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static.TNCPROCESS = p # .pid
static.TNCSTARTED = True
'''
# WE HAVE THIS PART in SOCKET
if data[0] == 'STOPTNC':
static.TNCPROCESS.kill()
structlog.get_logger("structlog").warning("[DMN] Stopping TNC")
#os.kill(static.TNCPROCESS, signal.SIGKILL)
static.TNCSTARTED = False
'''
# data[1] devicename
# data[2] deviceport
# data[3] serialspeed
# data[4] pttprotocol
# data[5] pttport
# data[6] data_bits
# data[7] stop_bits
# data[8] handshake
# data[9] radiocontrol
# data[10] rigctld_ip
# data[11] rigctld_port
if data[0] == 'TEST_HAMLIB':
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devicename = data[1]
deviceport = data[2]
serialspeed = data[3]
pttprotocol = data[4]
pttport = data[5]
data_bits = data[6]
stop_bits = data[7]
handshake = data[8]
radiocontrol = data[9]
rigctld_ip = data[10]
rigctld_port = data[11]
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# check how we want to control the radio
if radiocontrol == 'direct':
import rig
elif radiocontrol == 'rigctl':
import rigctl as rig
elif radiocontrol == 'rigctld':
import rigctld as rig
else:
import rigdummy as rig
hamlib = rig.radio()
hamlib.open_rig(devicename=devicename, deviceport=deviceport, hamlib_ptt_type=pttprotocol, serialspeed=serialspeed, pttport=pttport, data_bits=data_bits, stop_bits=stop_bits, handshake=handshake, rigctld_ip=rigctld_ip, rigctld_port = rigctld_port)
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hamlib_version = rig.hamlib_version
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hamlib.set_ptt(True)
pttstate = hamlib.get_ptt()
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if pttstate:
structlog.get_logger("structlog").info("[DMN] Hamlib PTT", status = 'SUCCESS')
response = {'command': 'test_hamlib', 'result': 'SUCCESS'}
elif not pttstate:
structlog.get_logger("structlog").warning("[DMN] Hamlib PTT", status = 'NO SUCCESS')
response = {'command': 'test_hamlib', 'result': 'NOSUCCESS'}
else:
structlog.get_logger("structlog").error("[DMN] Hamlib PTT", status = 'FAILED')
response = {'command': 'test_hamlib', 'result': 'FAILED'}
hamlib.set_ptt(False)
hamlib.close_rig()
jsondata = json.dumps(response)
sock.SOCKET_QUEUE.put(jsondata)
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except Exception as e:
print(e)
if __name__ == '__main__':
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# we need to run this on windows for multiprocessing support
multiprocessing.freeze_support()
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# --------------------------------------------GET PARAMETER INPUTS
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PARSER = argparse.ArgumentParser(description='FreeDATA Daemon')
PARSER.add_argument('--port', dest="socket_port",default=3001, help="Socket port in the range of 1024-65536", type=int)
ARGS = PARSER.parse_args()
static.DAEMONPORT = ARGS.socket_port
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try:
if sys.platform == 'linux':
logging_path = os.getenv("HOME") + '/.config/' + 'FreeDATA/' + 'daemon'
if sys.platform == 'darwin':
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logging_path = os.getenv("HOME") + '/Library/' + 'Application Support/' + 'FreeDATA/' + 'daemon'
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if sys.platform == 'win32' or sys.platform == 'win64':
logging_path = os.getenv('APPDATA') + '/' + 'FreeDATA/' + 'daemon'
if not os.path.exists(logging_path):
os.makedirs(logging_path)
log_handler.setup_logging(logging_path)
except:
structlog.get_logger("structlog").error("[DMN] logger init error")
try:
structlog.get_logger("structlog").info("[DMN] Starting TCP/IP socket", port=static.DAEMONPORT)
# https://stackoverflow.com/a/16641793
socketserver.TCPServer.allow_reuse_address = True
cmdserver = sock.ThreadedTCPServer((static.HOST, static.DAEMONPORT), sock.ThreadedTCPRequestHandler)
server_thread = threading.Thread(target=cmdserver.serve_forever)
server_thread.daemon = True
server_thread.start()
except Exception as e:
structlog.get_logger("structlog").error("[DMN] Starting TCP/IP socket failed", port=static.DAEMONPORT, e=e)
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os._exit(1)
daemon = DAEMON()
structlog.get_logger("structlog").info("[DMN] Starting FreeDATA Daemon", author="DJ2LS", year="2022", version=static.VERSION)
while True:
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time.sleep(1)