q1_cliente.py

import socket
import http.client, urllib.parse, json

def get_protocol(arq):
    f = open(arq, "r")
    protocolo = f.readline()
    f.close()
    return protocolo

def echo(protocolo):
    if protocolo == "UDP\n":
        HOST = '127.0.0.1'
        PORT = 5000
        udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        dest = (HOST, PORT)
        print ('Para sair use CTRL+X\n')
        msg = input()

        while msg != '\x18':
            udp.sendto (msg.encode('utf-8'), dest)

            resp, server = udp.recvfrom(1024)
            print (server, resp.decode('utf-8'))

            msg = input()

        udp.close()


    elif protocolo == "TCP\n":
        HOST = '127.0.0.1'
        PORT = 5001
        tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        dest = (HOST, PORT)
        tcp.connect(dest)
        print ('Para sair use CTRL+X\n')
        msg = input()
        while msg != '\x18':
            tcp.send(msg.encode('utf-8'))


            resp = tcp.recv(1024)
            print (dest, resp.decode('utf-8'))

            msg = input()

        tcp.close()

    elif protocolo == 'HTTP\n':
        print ('Para sair use CTRL+X\n')
        msg = input()

        while msg != '\x18':

            params = json.dumps({'msg': msg})
            headers = {"Content-type": "application/x-www-form-urlencoded",
            "Accept": "text/plain"}
            conn = http.client.HTTPConnection("127.0.0.1", 8000)
            conn.request("POST", "", params, headers)
            response = conn.getresponse()
            print(response.status, response.reason)

            data = response.read()
            print (data.decode())
            msg = input()

def main():
    protocol = get_protocol('q1_protocolo.txt')
    print ("protocolo:", protocol)
    echo(protocol)

if __name__ == '__main__':
    main()