#!/bin/bash

# This script performes an attempt to login to the KTHOPEN wireless lan.
# If you make any improvements of the script (such as error handling),
# please share them with me!    / landreas@kth.se

USER=
PASS=


if [ -z $USER ]
then
    echo "ERROR: Please specify USER and PASS at the top of this script."
    exit -1;
fi

TMP_COOKIE_FILE=tmp_cookies.txt
FORM_PAGE='https://login.kth.se/login.jsp?returnPage=https://login.sys.kth.se/login2.html&data='

LT_VALUE=$(wget --no-check-certificate \
                --save-cookies $TMP_COOKIE_FILE \
                --keep-session-cookies \
                --output-document=- \
                --quiet \
                $FORM_PAGE | grep "name=\"lt\"" | cut -d\" -f6)

wget --no-check-certificate \
     --load-cookies $TMP_COOKIE_FILE \
     --output-document=- \
     --quiet \
     --post-data "_eventId=submit&lt=$LT_VALUE&usedMethod=password&username=$USER&password=$PASS" \
     $FORM_PAGE > /dev/null

rm $TMP_COOKIE_FILE