#!/usr/bin/python3
# © 2020 martin f. krafft <madduck@madduck.net>
# Released under the terms of the Artistic Licence 2.0
# https://git.madduck.net/code/wifionice-login.git

URL='http://qantas.com.au'

import mechanicalsoup
import requests

# open any URL
browser = mechanicalsoup.StatefulBrowser()
browser.open(URL)

# get the captive page, and extract the URL that'll eventually grant us access
page = browser.get_current_page()
granturl = page.find(id='frequentflyerguestbutton').attrs['href']

# Qantas now expects a HEAD request with a specific header to the same URL
url = browser.get_url()
req = requests.head(url=url, headers={'X-Requested-With':'XMLHttpRequest'})

# and then a redirect to the granturl
browser.open(granturl)

# and now you're logged in…