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113 lines
4.1 KiB
113 lines
4.1 KiB
#!/usr/bin/env python
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"""
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blah
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"""
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import traceback
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import config
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import socket
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import time
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import datetime
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from libPyAirwaves.adsb import is_valid_adsb_message
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from libPyAirwaves.structs import AdsbType
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import redis
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import json
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count_failed_connection = 0
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max_failed_connection = 10
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redis = redis.from_url(config.REDIS_URL)
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pubsub = redis.pubsub()
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pubsub.subscribe("room:vehicles")
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if __name__ == "__main__":
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while count_failed_connection < max_failed_connection:
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try:
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.connect((config.ADSB_SOURCE["host"], config.ADSB_SOURCE["port"]))
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count_failed_connection = 1
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print("Connected to dump1090")
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break
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except socket.error:
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count_failed_connection += 1
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print(
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f"Cannot connect to dump1090 main {count_failed_connection}/{max_failed_connection}: {traceback.format_exc()}"
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)
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time.sleep(5)
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else:
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quit()
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data_str = ""
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start_time = datetime.datetime.utcnow()
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last_time = start_time
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try:
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while True:
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cur_time = datetime.datetime.utcnow()
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ds = cur_time.isoformat()
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ts = cur_time.strftime("%H:%M:%S")
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try:
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message = sock.recv(512)
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data_str += message.decode().strip("\n")
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except socket.error:
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pass
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if len(message) == 0:
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print(ts, "No broadcast received. Attempting to reconnect")
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time.sleep(5)
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sock.close()
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while count_failed_connection < max_failed_connection:
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try:
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.connect((config.ADSB_SOURCE["host"], config.ADSB_SOURCE["port"]))
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count_failed_connection = 1
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print("Connected to dump1090")
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break
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except socket.error:
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count_failed_connection += 1
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print(
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f"Cannot connect to dump1090 while {count_failed_connection}/{max_failed_connection}: {traceback.format_exc()}"
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)
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time.sleep(5)
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else:
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quit()
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continue
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# split if multiple messages have been received
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data = data_str.split("\n")
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for d in data:
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d = d.strip()
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line = d.split(",")
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# we need 22 items to be a valid looking message
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if len(line) == 22:
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if is_valid_adsb_message(line):
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adsb_message = AdsbType()
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adsb_message.populate_from_sbs(line)
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# print(adsb_message.to_dict())
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# Emit Socket.IO message only if altitude, latitude and longitude are set
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# AKA a "MSG,3" message and perhaps a "MSG,2" (Surface position)
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if adsb_message.has_location():
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adsb_message.entryPoint = "airwaves_adsb_client"
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adsb_message.ourName = config.PYAW_HOSTNAME
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adsb_message.srcName = config.ADSB_SOURCE["name"]
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adsb_message.srcLat = config.ADSB_SOURCE["lat"]
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adsb_message.srcLon = config.ADSB_SOURCE["lon"]
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adsb_message.srcPosMode = config.ADSB_SOURCE["posMode"]
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adsb_message.dataOrigin = "dump1090"
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# print(adsb_message.to_dict())
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redis.publish("room:vehicles", json.dumps(adsb_message.to_dict()))
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# It's valid, reset stream message
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data_str = ""
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else:
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# stream message still too short
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data_str = d
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continue
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except KeyboardInterrupt:
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print("Closing socket connection")
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sock.close()
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