server1.py

# Modified by Andris Jansons
import socket, time         # Import socket module
from ResponseGenerator import generateResponse

s = socket.socket()         # Create a socket object
port = 12346                # Reserve a port for your service.
s.bind(('', port))          # Bind to the port
s.listen(5)                 # Now wait for client connection.

print('Server is running on port {}'.format(port))

try:
    while True:
        temp = ""
        c, addr = s.accept()                     # Establish connection with client.
        print('Got connection from', addr)

        while True:   
            try:
                rawmsg = c.recv(1024)                # recieve up to 1024 bytes

                msg = rawmsg.decode('utf-8').rstrip('\r\n')    # convert and clean the input
                rtrnmsg = generateResponse(msg, temp)         # create return message
                temp = msg                              # Keep last message
                print( '%s -> %s' % (msg,rtrnmsg) )

                rtrnmsg = rtrnmsg + '\r\n'
                c.send( rtrnmsg.encode('utf-8') )    # send return message
                
            except ConnectionResetError:            # if one client shuts down, wait for next one to connect
                print("Closed last connection")
                break
            
        c.close()                                # Close the connection

except KeyboardInterrupt:                        # catch Ctrl-C signals so that we shutdown nicely
    pass

finally:                                        # make certain that the sockets get closed properly
    print('Shutdown')
    s.shutdown(1)
    s.close()