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"""

(C) Copyright 2009 Igor V. Custodio

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""


from ISO8583.ISO8583 import ISO8583
from ISO8583.ISOErrors import *
from socket import *

# Configure the server
serverIP = "192.168.0.103" 
serverPort = 8583
maxConn = 5
bigEndian = True
#bigEndian = False


# Create a TCP socket
s = socket(AF_INET, SOCK_STREAM)    
# bind it to the server port
s.bind((serverIP, serverPort))   
# Configure it to accept up to N simultaneous Clients waiting...
s.listen(maxConn)                        


# Run forever
while 1:
	#wait new Client Connection
	connection, address = s.accept() 
	while 1:
		# receive message
		isoStr = connection.recv(2048) 
		if isoStr:
			print ("\nInput ASCII |%s|" % isoStr)
			pack = ISO8583()
			#parse the iso
			try:
				if bigEndian:
					pack.setNetworkISO(isoStr)
				else:
					pack.setNetworkISO(isoStr,False)
			
				v1 = pack.getBitsAndValues()
				for v in v1:
					print ('Bit %s of type %s with value = %s' % (v['bit'],v['type'],v['value']))
					
				if pack.getMTI() == '0800':
					print ("\tThat's great !!! The client send a correct message !!!")
				else:
					print ("The client dosen't send the correct message!")	
					break
					
					
			except InvalidIso8583, ii:
				print ii
				break
			except:
				print ('Something happened!!!!')
				break
			
			#send answer
			pack.setMTI('0810')
			
			if bigEndian:
				ans = pack.getNetworkISO()
			else:
				ans = pack.getNetworkISO(False)
				
			print ('Sending answer %s' % ans)
			connection.send(ans)
			
		else:
			break
	# close socket		
	connection.close()             
	print ("Closed...")