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98 lines
3.5 KiB
Python
98 lines
3.5 KiB
Python
#!/usr/bin/env python
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from __future__ import with_statement
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import time
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from socket import *
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from WriteGPX import *
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class TrackServer:
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def __init__(self, host='', port='49152', hashfile='hashfile', datadir = './'):
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self.InitSocket(host, port)
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self.InitHashdb(hashfile)
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self.InitTrackDict()
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self.datadir = datadir
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def InitHashdb(self, hashfile):
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self.hashdb=[]
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with open(hashfile, "r") as file:
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for line in file:
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if line:
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self.hashdb.append((line.split()[0], \
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line.split()[1]))
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def InitTrackDict(self):
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self.TrackDict={}
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for data in self.hashdb:
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self.TrackDict[data[0]] = ""
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def InitSocket(self, host, port):
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# Set the socket parameters
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# e.g. host = "localhost"
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# e.g. port = 49152
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self.__addr = (str(host),int(port))
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# Create socket and bind it to the address
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self.UDPSock = socket(AF_INET,SOCK_DGRAM)
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self.UDPSock.bind(self.__addr)
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# Debug message:
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print "UDP Socket for %s at port %s created" % (host, port)
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def VerifyUser(self, username, password_hash):
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for data in self.hashdb:
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if data[0] == username and data[1] == password_hash:
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return 1
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return 0
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def Parser(self, stuff):
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# Parses the complete data sent to UDP port
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try:
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username, password_hash, action, data = stuff.split(';')
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# Verifies the user and password
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if self.VerifyUser(username, password_hash):
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if action == "START":
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self.NewTrack(username)
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if action == "STOP":
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self.CloseTrack(username)
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if action == "TRANSMIT":
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self.AddToTrack(username, data)
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print "Action", action,"received"
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except:
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print "Something went wrong.."
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def NewTrack(self, username):
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# if a track has already started it needs to be closed (finished)
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if self.TrackDict[username]:
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self.TrackDict[username].close()
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print "Track closed because %s requested a new track" % (username)
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# start the new track
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self.TrackDict[username] = WriteGPX("%s%s%s" % (self.datadir, username, time.strftime("%Y%m%d%H%M%S")))
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print "Created track %s%s%s" % (self.datadir, username, time.strftime("%Y%m%d%H%M%S"))
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def CloseTrack(self, username):
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if self.TrackDict[username]:
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self.TrackDict[username].close()
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print "Closed track", self.TrackDict[username]
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else:
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print "ha, no track for %s exists!" % (username)
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def AddToTrack(self, username, data):
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lat, lon, ele, time = data.split(',')
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self.TrackDict[username].write(lat, lon, ele, time)
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buf = 1024
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# Create instance of TrackServer
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instance = TrackServer()
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#Receive messages
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while 1:
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data,addr = instance.UDPSock.recvfrom(1024)
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print "Following data received:", data
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instance.Parser(data)
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