proxy_server.py

import socket

HOST = ""
PORT = 8001
BUFFER_SIZE = 1024

def get_remote_ip(host):
    print('Getting IP for ', host)
    try:
        remote_ip = socket.gethostbyname(host)
    except socket.gaierror:
        print('Hostname could not be resolved. Exiting')
        sys.exit()
    print('Ip address of ' +host+ ' is '+remote_ip)
    return remote_ip

def main():
    host = 'www.google.com'
    port = 80
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as proxy_start:
        print("Starting proxy server")
        proxy_start.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        proxy_start.bind((HOST, PORT))
        proxy_start.listen(1)
        while True:
            conn, addr = proxy_start.accept()
            print("Connected by", addr)
            with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as proxy_end:
                print("Connecting to Google")
                remote_ip = get_remote_ip(host)

                proxy_end.connect((host, port))

                send_full_data = conn.recv(BUFFER_SIZE)
                print("Sending received data " + send_full_data.decode("utf-8") + " to google")
                proxy_end.sendall(send_full_data)
                proxy_end.shutdown(socket.SHUT_WR)
                data = proxy_end.recv(BUFFER_SIZE)
                print("Sending received data " +data+ " to client")

                conn.send()

if __name__ == "__main__":
    main()