mirror of
https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 08:04:33 +00:00
252 lines
11 KiB
Python
252 lines
11 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Created on Fri Dec 25 21:25:14 2020
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@author: DJ2LS
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"""
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import socketserver
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import threading
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import logging
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import json
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import asyncio
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import time
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import static
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import data_handler
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import helpers
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class CMDTCPRequestHandler(socketserver.BaseRequestHandler):
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def handle(self):
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print("Client connected...")
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# loop through socket buffer until timeout is reached. then close buffer
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socketTimeout = time.time() + 3
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while socketTimeout > time.time():
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time.sleep(0.01)
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encoding = 'utf-8'
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#data = str(self.request.recv(1024), 'utf-8')
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data = bytes()
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# we need to loop through buffer until end of chunk is reached or timeout occured
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while True and socketTimeout > time.time():
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chunk = self.request.recv(1024) # .strip()
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data += chunk
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if chunk.endswith(b'\n'):
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break
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data = data[:-1] # remove b'\n'
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data = str(data, 'utf-8')
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if len(data) > 0:
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socketTimeout = time.time() + static.SOCKET_TIMEOUT
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# convert data to json object
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# we need to do some error handling in case of socket timeout
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try:
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received_json = json.loads(data)
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print(received_json)
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except:
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received_json = ''
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# GET COMMANDS
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# "command" : "..."
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# SET COMMANDS
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# "command" : "..."
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# "parameter" : " ..."
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# DATA COMMANDS
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# "command" : "..."
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# "type" : "..."
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# "dxcallsign" : "..."
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# "data" : "..."
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try:
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# SOCKETTEST ---------------------------------------------------
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#if data == 'SOCKETTEST':
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if received_json["command"] == "SOCKETTEST":
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#cur_thread = threading.current_thread()
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response = bytes("WELL DONE! YOU ARE ABLE TO COMMUNICATE WITH THE TNC", encoding)
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self.request.sendall(response)
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# CQ CQ CQ -----------------------------------------------------
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#if data == 'CQCQCQ':
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if received_json["command"] == "CQCQCQ":
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asyncio.run(data_handler.transmit_cq())
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# PING ----------------------------------------------------------
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#if data.startswith('PING:'):
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if received_json["command"] == "PING":
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# send ping frame and wait for ACK
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dxcallsign = received_json["dxcallsign"]
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asyncio.run(data_handler.transmit_ping(dxcallsign))
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# ARQ CONNECT TO CALLSIGN ----------------------------------------
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#if data.startswith('ARQ:CONNECT:'):
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#if received_json["command"] == "ARQ:CONNECT":
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#
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# dxcallsign = received_json["dxcallsign"]
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# static.DXCALLSIGN = bytes(dxcallsign, 'utf-8')
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# static.DXCALLSIGN_CRC8 = helpers.get_crc_8(static.DXCALLSIGN)
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# if static.ARQ_STATE == 'CONNECTED':
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# # here we could disconnect
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# pass
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# if static.TNC_STATE == 'IDLE':
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# asyncio.run(data_handler.arq_connect())
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# ARQ DISCONNECT FROM CALLSIGN ----------------------------------------
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#if received_json["command"] == "ARQ:DISCONNECT":
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# asyncio.run(data_handler.arq_disconnect())
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if received_json["type"] == 'ARQ' and received_json["command"] == "OPEN_DATA_CHANNEL": # and static.ARQ_STATE == 'CONNECTED':
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static.ARQ_READY_FOR_DATA = False
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static.TNC_STATE = 'BUSY'
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dxcallsign = received_json["dxcallsign"]
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static.DXCALLSIGN = bytes(dxcallsign, 'utf-8')
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static.DXCALLSIGN_CRC8 = helpers.get_crc_8(static.DXCALLSIGN)
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asyncio.run(data_handler.arq_open_data_channel())
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if received_json["type"] == 'ARQ' and received_json["command"] == "DATA":# and static.ARQ_READY_FOR_DATA == True: # and static.ARQ_STATE == 'CONNECTED' :
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static.TNC_STATE = 'BUSY'
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#on a new transmission we reset the timer
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static.ARQ_START_OF_TRANSMISSION = int(time.time())
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dxcallsign = received_json["dxcallsign"]
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static.DXCALLSIGN = bytes(dxcallsign, 'utf-8')
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static.DXCALLSIGN_CRC8 = helpers.get_crc_8(static.DXCALLSIGN)
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data_out = bytes(received_json["data"], 'utf-8')
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mode = int(received_json["mode"])
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n_frames = int(received_json["n_frames"])
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#ARQ_DATA_THREAD = threading.Thread(target=data_handler.arq_transmit, args=[data_out], name="ARQ_DATA")
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#ARQ_DATA_THREAD.start()
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ARQ_DATA_THREAD = threading.Thread(target=data_handler.open_dc_and_transmit, args=[data_out, mode, n_frames], name="ARQ_DATA")
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ARQ_DATA_THREAD.start()
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# asyncio.run(data_handler.arq_transmit(data_out))
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# SETTINGS AND STATUS ---------------------------------------------
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if received_json["type"] == 'SET' and received_json["command"] == 'MYCALLSIGN':
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callsign = received_json["parameter"]
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if bytes(callsign, encoding) == b'':
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self.request.sendall(b'INVALID CALLSIGN')
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else:
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static.MYCALLSIGN = bytes(callsign, encoding)
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static.MYCALLSIGN_CRC8 = helpers.get_crc_8(static.MYCALLSIGN)
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logging.info("CMD | MYCALLSIGN: " + str(static.MYCALLSIGN))
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if received_json["type"] == 'SET' and received_json["command"] == 'MYGRID':
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mygrid = received_json["parameter"]
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if bytes(mygrid, encoding) == b'':
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self.request.sendall(b'INVALID GRID')
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else:
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static.MYGRID = bytes(mygrid, encoding)
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logging.info("CMD | MYGRID: " + str(static.MYGRID))
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if received_json["type"] == 'GET' and received_json["command"] == 'STATION_INFO':
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output = {
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"COMMAND": "STATION_INFO",
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"MY_CALLSIGN": str(static.MYCALLSIGN, encoding),
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"DX_CALLSIGN": str(static.DXCALLSIGN, encoding),
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"DX_GRID": str(static.DXGRID, encoding)
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}
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jsondata = json.dumps(output)
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self.request.sendall(bytes(jsondata, encoding))
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if received_json["type"] == 'GET' and received_json["command"] == 'TNC_STATE':
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output = {
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"COMMAND": "TNC_STATE",
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"PTT_STATE": str(static.PTT_STATE),
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"CHANNEL_STATE": str(static.CHANNEL_STATE),
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"TNC_STATE": str(static.TNC_STATE),
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"ARQ_STATE": str(static.ARQ_STATE),
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"AUDIO_RMS": str(static.AUDIO_RMS),
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"BER": str(static.BER),
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"SNR": str(static.SNR),
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"FREQUENCY" : str(static.HAMLIB_FREQUENCY)
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}
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jsondata = json.dumps(output)
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self.request.sendall(bytes(jsondata, encoding))
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if received_json["type"] == 'GET' and received_json["command"] == 'DATA_STATE':
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output = {
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"COMMAND": "DATA_STATE",
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"RX_BUFFER_LENGTH": str(len(static.RX_BUFFER)),
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"TX_N_MAX_RETRIES": str(static.TX_N_MAX_RETRIES),
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"ARQ_TX_N_FRAMES_PER_BURST": str(static.ARQ_TX_N_FRAMES_PER_BURST),
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"ARQ_TX_N_BURSTS": str(static.ARQ_TX_N_BURSTS),
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"ARQ_TX_N_CURRENT_ARQ_FRAME": str(int.from_bytes(bytes(static.ARQ_TX_N_CURRENT_ARQ_FRAME), "big")),
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"ARQ_TX_N_TOTAL_ARQ_FRAMES": str(int.from_bytes(bytes(static.ARQ_TX_N_TOTAL_ARQ_FRAMES), "big")),
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"ARQ_RX_FRAME_N_BURSTS": str(static.ARQ_RX_FRAME_N_BURSTS),
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"ARQ_RX_N_CURRENT_ARQ_FRAME": str(static.ARQ_RX_N_CURRENT_ARQ_FRAME),
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"ARQ_N_ARQ_FRAMES_PER_DATA_FRAME": str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)
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}
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jsondata = json.dumps(output)
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self.request.sendall(bytes(jsondata, encoding))
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if received_json["type"] == 'GET' and received_json["command"] == 'HEARD_STATIONS':
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output = []
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for i in range(0, len(static.HEARD_STATIONS)):
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output.append({"COMMAND": "HEARD_STATIONS", "CALLSIGN": str(static.HEARD_STATIONS[i][0], 'utf-8'),"DXGRID": str(static.HEARD_STATIONS[i][1], 'utf-8'), "TIMESTAMP": static.HEARD_STATIONS[i][2], "DATATYPE": static.HEARD_STATIONS[i][3]})
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jsondata = json.dumps(output)
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self.request.sendall(bytes(jsondata, encoding))
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if received_json["type"] == 'GET' and received_json["command"] == 'RX_BUFFER':
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data = data.split('GET:RX_BUFFER:')
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bufferposition = int(data[1]) - 1
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if bufferposition == -1:
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if len(static.RX_BUFFER) > 0:
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self.request.sendall(static.RX_BUFFER[-1])
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if bufferposition <= len(static.RX_BUFFER) > 0:
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self.request.sendall(bytes(static.RX_BUFFER[bufferposition]))
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if received_json["type"] == 'SET' and received_json["command"] == 'DEL_RX_BUFFER':
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static.RX_BUFFER = []
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#exception, if JSON cant be decoded
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except:
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print("Wrong command")
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print("Client disconnected...")
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def start_cmd_socket():
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try:
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logging.info("SRV | STARTING TCP/IP SOCKET FOR CMD ON PORT: " + str(static.PORT))
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socketserver.TCPServer.allow_reuse_address = True # https://stackoverflow.com/a/16641793
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cmdserver = socketserver.TCPServer((static.HOST, static.PORT), CMDTCPRequestHandler)
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cmdserver.serve_forever()
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finally:
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cmdserver.server_close()
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