#!/usr/bin/python3 # -*- coding: utf-8 -*- """ Created on Tue Dec 22 16:58:45 2020 @author: DJ2LS """ import argparse import threading import socketserver import pyaudio import time import json import subprocess import os import static import psutil #PORT = 3001 #TNCPROCESS = 0 #TNCSTARTED = False #p = pyaudio.PyAudio() #info = p.get_host_api_info_by_index(0) #numdevices = info.get('deviceCount') #for each audio device, determine if is an input or an output and add it to the appropriate list and dictionary #for i in range (0,numdevices): # if p.get_device_info_by_host_api_device_index(0,i).get('maxInputChannels')>0: # print("Input Device id ", i, " - ", p.get_device_info_by_host_api_device_index(0,i).get('name'))# # # if p.get_device_info_by_host_api_device_index(0,i).get('maxOutputChannels')>0: # print("Output Device id ", i, " - ", p.get_device_info_by_host_api_device_index(0,i).get('name')) def start_daemon(): try: print("SRV | STARTING TCP/IP SOCKET FOR CMD ON PORT: " + str(PORT)) socketserver.TCPServer.allow_reuse_address = True # https://stackoverflow.com/a/16641793 daemon = socketserver.TCPServer(('0.0.0.0', PORT), CMDTCPRequestHandler) daemon.serve_forever() finally: daemon.server_close() class CMDTCPRequestHandler(socketserver.BaseRequestHandler): def handle(self): print("Client connected...") # loop through socket buffer until timeout is reached. then close buffer socketTimeout = time.time() + 3 while socketTimeout > time.time(): time.sleep(0.01) encoding = 'utf-8' #data = str(self.request.recv(1024), 'utf-8') data = bytes() # we need to loop through buffer until end of chunk is reached or timeout occured while True and socketTimeout > time.time(): chunk = self.request.recv(1024) # .strip() data += chunk if chunk.endswith(b'\n'): break data = data[:-1] # remove b'\n' data = str(data, 'utf-8') #print(data) if len(data) > 0: socketTimeout = time.time() + 3 # convert data to json object # we need to do some error handling in case of socket timeout try: received_json = json.loads(data) print(received_json) except: received_json = '' # GET COMMANDS # "command" : "..." # SET COMMANDS # "command" : "..." # "parameter" : " ..." # DATA COMMANDS # "command" : "..." # "type" : "..." # "dxcallsign" : "..." # "data" : "..." # print(received_json) #print(received_json["type"]) #print(received_json["command"]) try: print(static.TNCSTARTED) if received_json["type"] == 'SET' and received_json["command"] == 'STARTTNC' and not static.TNCSTARTED: rx_audio = received_json["parameter"][0]["rx_audio"] tx_audio = received_json["parameter"][0]["tx_audio"] deviceid = received_json["parameter"][0]["deviceid"] deviceport = received_json["parameter"][0]["deviceport"] serialspeed = received_json["parameter"][0]["serialspeed"] ptt = received_json["parameter"][0]["ptt"] print("STARTING TNC !!!!!") print(received_json["parameter"][0]) #os.system("python3 main.py --rx 3 --tx 3 --deviceport /dev/ttyUSB0 --deviceid 2028") p = subprocess.Popen("exec python3 main.py --rx "+ str(rx_audio) +" --tx "+ str(tx_audio) +" --deviceport "+ str(deviceport) +" --deviceid "+ str(deviceid) + " --serialspeed "+ str(serialspeed) + " --ptt "+ str(ptt), shell=True) static.TNCPROCESS = p#.pid #print(parameter) # print(static.TNCPROCESS) static.TNCSTARTED = True if received_json["type"] == 'SET' and received_json["command"] == 'STOPTNC': parameter = received_json["parameter"] static.TNCPROCESS.kill() print("KILLING PROCESS ------------") #os.kill(static.TNCPROCESS, signal.SIGKILL) static.TNCSTARTED = False if received_json["type"] == 'GET' and received_json["command"] == 'DAEMON_STATE': data = {'COMMAND' : 'DAEMON_STATE', 'DAEMON_STATE' : [], 'INPUT_DEVICES': [], 'OUTPUT_DEVICES': [],"CPU": str(psutil.cpu_percent()),"RAM": str(psutil.virtual_memory().percent), "VERSION": "0.1-prototype"} if static.TNCSTARTED: data["DAEMON_STATE"].append({"STATUS": "running"}) else: data["DAEMON_STATE"].append({"STATUS": "stopped"}) p = pyaudio.PyAudio() for i in range(0, p.get_device_count()): maxInputChannels = p.get_device_info_by_host_api_device_index(0,i).get('maxInputChannels') maxOutputChannels = p.get_device_info_by_host_api_device_index(0,i).get('maxOutputChannels') name = p.get_device_info_by_host_api_device_index(0,i).get('name') if maxInputChannels > 0: data["INPUT_DEVICES"].append({"ID": i, "NAME" : name}) if maxOutputChannels > 0: data["OUTPUT_DEVICES"].append({"ID": i, "NAME" : name}) #print(data) jsondata = json.dumps(data) self.request.sendall(bytes(jsondata, encoding)) #exception, if JSON cant be decoded except Exception as e: print('PROGRAM ERROR: %s' %str(e)) print("Wrong command") print("Client disconnected...") if __name__ == '__main__': # --------------------------------------------GET PARAMETER INPUTS PARSER = argparse.ArgumentParser(description='Simons TEST TNC') PARSER.add_argument('--port', dest="socket_port", default=3001, help="Socket port", type=int) ARGS = PARSER.parse_args() PORT = ARGS.socket_port # --------------------------------------------START CMD SERVER DAEMON_THREAD = threading.Thread(target=start_daemon, name="daemon") DAEMON_THREAD.start()