May 31 2017
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By Karl H. Beckers computer, linux

Login to Telekom Hotspot on Linux command line

So, my old laptop has been reactivated to a 16.04 LTS ubuntu release. When traveling, I frequently do use the Telekom Hotspot services, and given how I like using the Tor Browser (with some additional plugins just because I’m fed up with all the tracking) there’s a litle issue: I need to log in to a web page to start using the hotspots, but I cannot start browsing with the Tor browser before I have a network connection.

No big deal on a Mac with the wispr stuff to automatically fill out the captive portal pages for you, or at least automatically pop them up in a window separate from your browser. So, what are the options on Linux?

  1. Start firefox, first, log in to the hotspot, shut down firefox again to then start the Tor browser.
  2. Somehow work in a “-new-instance” argument into starting Tor Browser so you can actually do #1 but leave firefox open (which helps with stuff like posting on wordpress.)
  3. Use some entirely other browser unrelated to firefox as your second/first browser to log in to the hotspot
  4. Use a WISPR client like this one (though the page has issues as of writing this), but the whole approach seems like a security issue.
  5. log in to the hotspot on the command line

So, yes … Linux geeks chose option #5:

#!/usr/bin/perl

use strict;
use Term::ReadKey;

my $username;
my $password;

print "username: ";
$username = <>;
chomp $username;

ReadMode ('noecho');
print "password: ";
$password = <>;
chomp $password;
ReadMode ('restore');

print "\n";

system ( "curl 'https://hotspot.t-mobile.net/wlan/rest/login' -H 'Host: hotspot.t-mobile.net' -H 'User-Agent: Mozilla/5.0 (X1
1; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0' -H 'Accept: application/json, text/plain, */*' -H 'Accept-Lang
uage: en-US,en;q=0.5' --compressed -H 'Content-Type: application/json;charset=utf-8' -H 'X-Hash: AjbCkwnbQWKb+eKqFSelsyugcyVt
XiU1ZkUjnqDYhsA=' -H 'Referer: https://hotspot.t-mobile.net/TD/hotspot/Tank_Rast_Petro/en_GB/index.html' -H 'Content-Length: 
57' -H 'Cookie: JSESSIONID=1111D92CBA6C27FE69D13F04F5CD4497.P3; POPUPCHECK=1496237026311; DT_H=NzY5OTk0MTgy' -H 'Connection: 
keep-alive' -d '{\"username\":\"$username\",\"password\":\"$password\"}' ");

Make sure you have the Term::ReadKey module installed. On Xenial you do:

apt install libterm-readkey-perl

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