[Python] Webserver Watcher

[Gonzalez]

#!usr/bin/python

import httplib, socket, time, re, os, sys, datetime

# Hello world!
os.system('clear')
print "==================================================="
print "== Webserverwatcher.py | www.ethicalhack3r.co.uk =="
print "==================================================="
print
url = raw_input("Enter the URL you want to keep an eye on: ")

# Check URL
http = "http://"

if http in url:
   print
   print "ERROR! Remove http:// from the URL."
   url = raw_input("Enter the URL you want to keep an eye on: ")

count = 0

while 1:

   # Count how many times the script has run
   count = count + 1

   # Get todays date/time
   getdate = datetime.datetime.today()
   today = getdate.strftime("%d/%m/%Y %H:%M:%S")

   # Get webserver IP
   socket.setdefaulttimeout(15)

   try: socket.gethostbyname(url)
   except socket.error:
      os.system('clear')
      print "==================================================="
      print "== Webserverwatcher.py | www.ethicalhack3r.co.uk =="
      print "==================================================="
      print
      print "SOCKET ERROR! 1)Check the URL 2)Check your internet connection 3)Try again."
      print
      sys.exit()

   # HTTP HEAD request
   conn = httplib.HTTPConnection(url, 80)

   try: conn.request("HEAD", "/")
   except socket.timeout:
      print "Webserver has timed out. Check URL and internet connection."

   # Read HTTP response
   res = conn.getresponse()

   # Close HTTP connection
   conn.close()

   # Turn headers into variables
   ip = socket.gethostbyname(url)
   server = res.getheader('Server')
   xpoweredby = res.getheader('x-powered-by')
   date = res.getheader('date')

   # Print some output
   os.system('clear')
   print "==================================================="
   print "== Webserverwatcher.py | www.ethicalhack3r.co.uk =="
   print "==================================================="
   print
   print res.status, res.reason
   print

   if xpoweredby == None:
      print ip + " " + server + " " + date
   else:
      print ip + " " + server + " " + xpoweredby + " " + date

   print
   print "The script has run", count, "time/s."

   if (count < 2):

      # Save header data to log file
      outfile = file('log.txt', 'w')
      outfile.write("Started on " + today + "\n")
      outfile.write(ip + " ")
      outfile.write(server + " ")

      # Check if xpoweredby header exists, if it does save to log
      if xpoweredby != None:
         outfile.write(xpoweredby + " ")
         outfile.write(date + "\n")
         outfile.close()
      else:
         outfile.write(date + "\n")
         outfile.close()

      # Print some output
      print
      print "Logged!"
      print
   else:

      # Read file to compare old/new headers
      readfile = open('log.txt', "r")
      text = readfile.read()

      # Check if log file IP is same as new IP
      if ip not in text:
         outfile = file('log.txt', 'a')
         outfile.write('IP address has been changed! New IP is ' + ip + ' ' + date + '\n')
         outfile.close()

      # Check if log file server is same as new server
      if server not in text:
         outfile = file('log.txt', 'a')
         outfile.write('Web Server software has been changed! New server is ' + server + ' ' + date + '\n')
         outfile.close()

      # Check if log file x-powered-by header is same as new one
      if xpoweredby != None and xpoweredby not in text:
         outfile = file('log.txt', 'a')
         outfile.write('X-powered-by header has been changed! New header is ' + xpoweredby + ' ' + date + '\n')
         outfile.close()

   # Time to wait between HTTP requests (3600 seconds = 1hr)
   try: time.sleep(3600)
   except KeyboardInterrupt:
         outfile = file('log.txt', 'a')
         outfile.write("Finished on " + today)
         outfile.close()
         print
         print "Check log.txt."
         print
         sys.exit()