def testProxy(host, port):
    try:
        s = socket.socket()
        s.connect((host, int(port)))
    except:
        s.close()
        return False

    s.send(b"CONNECT %s:%s HTTP/1.0\r\n\r\n" % (host.encode('utf-8'), port.encode('utf-8')))

    try:
        buff = s.recv(128)
    except:
        s.close()
        return False

    if b"200 OK" in buff or b"200 Connection established" in buff:
        sendData(s, "NICK %s\r\n" % randNick())
        sendData(s, "USER x localhost %s :test\r\n" % targetHost)

        while 1:
            try:
                buff = s.recv(128)
            except Exception as err:
                print(err)

            if not buff:
                s.close()
                break

            for line in buff.split(b'\r\n'):
                words = line.split()

                if len(words) < 2:
                    continue

                if words[0] == "PING":
                    sendData(s, "PONG %s\r\n" % words[1])

            buff = ""