RUB LAK automatic login

autoreauth.sh

#!/bin/sh
while true; do
errorstr="$(ping -c1 -n -w1 8.8.8.8 2>&1 | grep '100% packet loss')"
if [ "$errorstr" != '' ]; then
  echo -n 'reconnecting... '
  ./uni_reauth.sh
else
  echo 'still ok'
fi
sleep 1
done

uni_reauth.sh

#!/bin/bash

loginid="USERNAME"
# password in base64 so that it's not directly readable when you open the file. stupid, I know.
password="$(echo 'PASSWORD_IN_BASE64' | base64 -d)"


loginpage="$(curl -s -S https://login.rz.ruhr-uni-bochum.de/cgi-bin/start)"
code="$(echo "$loginpage" | grep '<input type=hidden name="code"' | cut -d'"' -f4)"
ipaddr="$(echo "$loginpage" | grep '<input type="ipaddr" name="ipaddr" ' | cut -d'"' -f8)"

curlresp="$(echo password="$password" | curl -s -S https://login.rz.ruhr-uni-bochum.de/cgi-bin/laklogin \
                 -d code="$code"                                                                  \
                 -d loginid="$loginid" -d ipaddr="$ipaddr" -d action=Login                        \
                 -d '@-' -d ShowTraffic=0)"
echo "$curlresp" | grep '<small><small>'