Shell Programming and Scripting

# ! /bin/sh
### BEGIN INIT INFO
# Provides:          Stealth Hunter
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Stealth Hunter catcher
# Description:       Stealth Hunter is a thief catcher
#                    It will silently take a snapshot of user using a stolen notebook
#           or pc with webcam and send back an email.
### END INIT INFO

# Author: shunter

CONFIGURE="No"

# Reads config file
[ -r /etc/default/shunter ] && . /etc/default/shunter


if [ $CONFIGURED != "Yes" ]; then
   echo "/etc/default/shunter not configured yet!"
   echo "Exiting ..."
   exit 0
fi

PASSWORD=$(encrypt-decrypt decode $PASS | awk '$0!~/^$/ {print $0}')

do_start()
{
ping -c 2 google.com > /dev/null 2>&1
if [ $? -eq 0 ]; then
   #echo "Checking alert mail ..."
   check_mail=$(wget -T 3 -t 1 -q --secure-protocol=TLSv1 --no-check-certificate  --user=$USER --password=$PASSWORD https://mail.google.com/mail/feed/atom -O - |grep "$ALERT")
   if [ $? -eq 0 ];
   then
      #echo "Alert mail found, this notebook/pc might been stolen!!"
      #echo "Retrieving ip adress ..."
      IP=$(wget -q -O - whatismyip.org |tail) && wait $!
      DATE=`date`
      #echo "Taking snapshot ..."
      mplayer tv:// -tv driver=v4l2:width=320:height=240:outfmt=uyvy:device=/dev/video0 -frames 3 -vo jpeg:outdir=/tmp >/dev/null 2>&1 && wait $!
      #echo -n "Sending mail ..."
      sendEmail -f shunter@google.com -t $USER -s $MAIL_SERV:$PORT -xu $USER -xp $PASSWORD -u $TITLE -m "$MESSAGE\nIP : $IP  DATE: $DATE\n" -a $ATTACHMENT >/dev/null
      #echo "Done."
      exit
   else
      #echo "No alert message found ..exiting."
      exit
   fi
else
   #echo "Not online ..."
   exit
fi
}


case "$1" in
  start)
   do_start
   ;;
   
  stop)
   echo "This option is not supported."
   ;;

  restart)
   echo "This option is not supported"
   ;;
    *)
        echo "Usage: /etc/init.d/$0 {start|stop|restart}"
        exit 1
        ;;

esac

exit 0