nos_fon_authenticate.py

#!/usr/bin/python
# -*- coding: utf-8 -*-
#
#  Copyright 2014, João Pinto
#  
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#  
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

import urllib, urllib2
from urlparse import urlparse, parse_qs
from urllib import urlencode
from os import getenv
import sys

# Get username and password from shell environment passwords
FON_USERNAME = getenv('FON_USERNAME')
FON_PASSWORD = getenv('FON_PASSWORD')

#Pass arguments option
if len(sys.argv) < 2 and (not FON_USERNAME or not FON_PASSWORD):
	print "Command: python zon_fon_authenticate.py <LOGIN> <PASSWORD>";
	sys.exit(1)

FON_USERNAME = sys.argv[1]
FON_PASSWORD = sys.argv[2]

# Attempt to fetch the START_URL in order to be redirected
# to the Zon@Fon authetincation page
START_URL = 'http://www.sapo.pt'

opener = urllib2.build_opener(urllib2.HTTPCookieProcessor)
urllib2.install_opener(opener)
data = urllib2.urlopen(START_URL)

auth_url = data.geturl()
if not auth_url.startswith('https://zon.portal.fon.com/') and not auth_url.startswith('https://nos.portal.fon.com'):
	print "Zon fon authentication was not requested. Already authenticated?"
	sys.exit(1)


# Build the POST URL from the redirect location
url_data = parse_qs(urlparse(auth_url).query, keep_blank_values=True)
fields = [ 'nasid', 'uamip', 'uamport', 'mac', 'challenge' ]
str_data = 'res=login'
for f in fields:
	str_data += '&%s=%s' % (f, url_data[f][0])
str_data += '&tab=2'
url = "%s://%s%s?%s" % (urlparse(auth_url).scheme, urlparse(auth_url).netloc, urlparse(auth_url).path, str_data)

html = urllib2.urlopen(url,
 data=urllib.urlencode({'USERNAME': FON_USERNAME, 'PASSWORD': FON_PASSWORD}))
html_data = html.read()

# Check the result
if 'Incorrect username or password' in html_data:
	print "Login failed, check username/password!"
elif "'You're connected!":
	print "You are now connected"
else:
	print "Something failed"