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path: root/Handler/SIPCall.py
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import sys
import pjsua as pj
import socket
import time
import MySQLdb
import subprocess
from time import sleep
from datetime import datetime
import string



HOST = None
PORT = 50099
s = None

stop ="false"
server = "132.230.4.8"
username = "mpselftest1"
password = "1mpselftest"

LOG_LEVEL=2
current_call = None
success = ""




# Logging callback
def log_cb(level, str, len):
    print str, "SIP log"


# Callback to receive events from account
class MyAccountCallback(pj.AccountCallback):

    def __init__(self, account=None):
        pj.AccountCallback.__init__(self, account)

    # Notification on incoming call##


        
# Callback to receive events from Call
class MyCallCallback(pj.CallCallback):
   
    def __init__(self, call=None):
        pj.CallCallback.__init__(self, call)

    # Notification when call state has changed
    def on_state(self):
        global current_call
	global success

	if self.call.info().state_text <> "DISCONNCTD":
		if self.call.info().state_text == "CONNECTING":
			print "CONNECTING CALL"
			#print "isine opo:", self.call.info().state_text
			print "CALL CONFIRMED and ESTABLISH", self.call.info().state_text
			sleep(5)
			current_call.hangup()
			success = "true"
			connection.send(success)
		else:
			sleep(1)
	#print ""

	if self.call.info().last_reason <> "":
		
		if self.call.info().last_reason == "Busy Here":
			
			print "Destination Number is Busy or offline"
			print ""
			success = "false"
			connection.send(success)
			

		#print self.call.info().state_text
        
        if self.call.info().state == pj.CallState.DISCONNECTED:
            current_call = None
            print 'Current call Disconnected'


def make_call(uri):
    try:
        print "Making call to", uri
	cb=MyCallCallback()
        return acc.make_call(uri, cb)
    except pj.Error, e:
        print "Exception: " + str(e)
        return None
        



lib = pj.Lib()
while stop <> "true":


	for res in socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, socket.AI_PASSIVE):
    		af, socktype, proto, canonname, sa = res
    		try:
        		s = socket.socket(af, socktype, proto)
    		except socket.error, msg:
        		s = None
        		continue

		try:
		        s.bind(sa)
		        s.listen(1)
		except socket.error, msg:
			s.close()
		        s = None
		        continue
		break
	
	if s is None:
		print 'could not open socket'
		sys.exit(1)


	lib.init(log_cfg = pj.LogConfig(level=LOG_LEVEL, callback=log_cb))
	transport = lib.create_transport(pj.TransportType.UDP, pj.TransportConfig(0))

	print "\nListening on", transport.info().host, 
	print "port", transport.info().port, "\n"
	lib.start()
	lib.set_null_snd_dev()	

	try:
		acc_cfg = pj.AccountConfig(server, username, password)	
		acc = lib.create_account(acc_cfg, cb=MyAccountCallback())
			
		if acc.info().reg_status < 700:
			
			my_sip_uri = "sip:" + transport.info().host + ":" + str(transport.info().port)
			
			connection, addr = s.accept()
			print 'Connected by', addr
			connection.send('I am ready')
			
			while 1:
				try:
					data = connection.recv(1024)
					
					if data == "start":
						
						while 1:

							num = connection.recv(1024)
							if num <> "":
								
								number = "sip:"+num+"@132.230.4.8"
								current_call = make_call(number)
								break

					if data == "terminated":
						stop = "true"
						break
	
				except ValueError:
					print "error when sending message"
					connection.close()

			connection.close()
			
					
		else:
			Regis_status= "Bad"
			print "error when register"

			lib.destroy()
			lib = None
    			acc = None


		connection.close()	
	except ValueError:    
		print "Exception: " + str(e)

print "Goodbye"
sleep(3)
acc.delete()
lib.destroy()
connection.close()
lib = None
acc = None