134 lines
5.1 KiB
Python
134 lines
5.1 KiB
Python
#!/usr/bin/env python
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import glob
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import os
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import sys
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import time
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import zmq
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import zmq.auth
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from aman.com import Communication_pb2
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from aman.config.Server import Server
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from threading import Thread
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class ComThread(Thread):
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def __init__(self, com, aman):
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Thread.__init__(self)
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self.Com = com
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self.AMAN = aman
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def run(self):
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while True:
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try:
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msg = self.Com.Socket.recv(zmq.NOBLOCK)
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# parse the received message
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report = Communication_pb2.AircraftUpdate()
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report.ParseFromString(msg)
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# try to associate the received aircrafts to airports
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icao = None
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for inbound in report.reports:
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self.AMAN.updateAircraftReport(inbound)
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icao = inbound.destination
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# get the sequence of the airport
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if None != icao:
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airport = self.AMAN.findAirport(icao)
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if None != airport:
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self.Com.sendSequence(icao, airport.inboundSequence(), airport.WeatherModel)
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except zmq.ZMQError as error:
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if zmq.EAGAIN == error.errno:
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time.sleep(0.5)
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continue
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else:
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return
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# @brief Receives and sends messages to EuroScope plugins
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class Euroscope:
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def __init__(self, configPath : str, config : Server, aman):
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self.Context = None
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self.Socket = None
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self.Thread = None
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self.Context = zmq.Context()
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# find the key directories
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serverKeyPath = os.path.join(os.path.join(configPath, 'keys'), 'server')
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if False == os.path.isdir(serverKeyPath):
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sys.stderr.write('No directory for the server key found')
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sys.exit(-1)
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print('Path to the server key: ' + serverKeyPath)
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clientKeyPath = os.path.join(os.path.join(configPath, 'keys'), 'clients')
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if False == os.path.isdir(clientKeyPath):
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sys.stderr.write('No directory for the client keys found')
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sys.exit(-1)
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print('Path to the client keys: ' + clientKeyPath)
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# read the certificates
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keyPairPath = glob.glob(os.path.join(serverKeyPath, '*.key_secret'))
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if 1 != len(keyPairPath):
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sys.stderr.write('No public-private keypair found for the server certificate')
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sys.exit(-1)
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keyPair = zmq.auth.load_certificate(keyPairPath[0])
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# initialize the receiver
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self.Socket = zmq.Socket(self.Context, zmq.REP)
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self.Socket.setsockopt(zmq.CURVE_PUBLICKEY, keyPair[0])
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self.Socket.setsockopt(zmq.CURVE_SECRETKEY, keyPair[1])
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self.Socket.setsockopt(zmq.CURVE_SERVER, True)
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self.Socket.bind('tcp://' + config.Address + ':' + str(config.PortReceiver))
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#self.Socket.setsockopt(zmq.SUBSCRIBE, b'')
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self.Thread = ComThread(self, aman)
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self.Thread.setDaemon(True)
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self.Thread.start()
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print('Listening to tcp://' + config.Address + ':' + str(config.PortReceiver))
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def sendSequence(self, airport : str, inbounds, weather):
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if None == self.Socket:
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return
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sequence = Communication_pb2.AircraftSequence()
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sequence.airport = airport
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# convert the wind data
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if None != weather.Altitudes:
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for i in range(0, len(weather.Altitudes)):
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entry = sequence.windData.add()
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entry.altitude = int(weather.Altitudes[i])
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entry.direction = int(weather.Directions[i])
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entry.speed = int(weather.Windspeeds[i])
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# convert the inbound sequence
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for inbound in inbounds:
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entry = sequence.sequence.add()
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entry.callsign = inbound.Callsign
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entry.fixed = inbound.FixedSequence
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entry.arrivalRoute = inbound.PlannedStar.Name
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entry.arrivalRunway = inbound.PlannedRunway.Name
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#performance = entry.performance.add()
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entry.performance.iasAboveFL240 = int(round(inbound.PerformanceData.SpeedAboveFL240))
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entry.performance.iasAboveFL100 = int(round(inbound.PerformanceData.SpeedAboveFL100))
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entry.performance.iasBelowFL100 = int(round(inbound.PerformanceData.SpeedBelowFL100))
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entry.performance.iasApproach = int(round(inbound.PerformanceData.SpeedApproach))
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for waypoint in inbound.PlannedArrivalRoute:
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wp = entry.waypoints.add()
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wp.name = waypoint.Waypoint.Name
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wp.altitude = int(round(waypoint.Altitude))
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wp.indicatedAirspeed = int(round(waypoint.IndicatedAirspeed))
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wp.groundSpeed = int(round(waypoint.GroundSpeed))
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pta = str(waypoint.PTA)
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delimiter = pta.find('.')
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if -1 == delimiter:
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delimiter = pta.find('+')
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wp.pta = pta[0:delimiter]
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message = sequence.SerializeToString()
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self.Socket.send(message)
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