#!/bin/zsh
# Filename:      grml-lock
# Purpose:       lock console
# Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports:   see http://grml.org/bugs/
# License:       This file is licensed under the GPL v2.
# Latest change: Mon Jun 04 22:49:37 CEST 2007 [mika]
################################################################################

PN="$0"

if [ -r /etc/grml/script-functions ] ; then
   . /etc/grml/script-functions
   if [ -x /usr/bin/X ] ; then
      check4progs vlock xlock sudo chpasswd dialog || { echo "Sorry, can't continue. Exiting.">&2 ; exit 1 }
   else
      check4progs vlock sudo chpasswd dialog || { echo "Sorry, can't continue. Exiting.">&2 ; exit 1 }
   fi
fi

if [ -r /etc/grml_version ] ; then
else
  dialog --stdout --title "$PN" --msgbox "Warning: this system does not look like a grml-system
it might not work as intended." 7 70
fi

welcome_screen() {
dialog --stdout --title "$PN" --yes-label Continue --no-label Quit --yesno "Welcome to $PN!

This script will lock virtual consoles when running
on console or lock X server when running X.

Notice that you can not lock a GNU screen-session
via this script, use the lockscreen command
instead (default is pressing ctrl-a x inside
GNU screen)!

Report bugs, send wishes and feedback to the grml team:
http://www.grml.org/ - contact (at) grml.org
" 16 65

  case $? in
      (0)   # everything ok
            ;;
      (1)   echo "Cancel pressed." ; exit 1 ;;
      (255) echo "ESC pressed."    ; exit 255 ;;
  esac
}

lockcons()
{
  vlock -a
}

lockx()
{
  xlock
}

askxlock()
{
  dialog --stdout --title "$PN" --yesno "Now lock X?" 0 0
  retval=$?
  case $retval in
    0)
       lockx
       ;;
  esac
}

askvlock()
{
  dialog --stdout --title "$PN" --yesno "Now lock consoles?" 0 0
  retval=$?
  case $retval in
    0)
       lockcons
       ;;
  esac
}

askpwd()
{
dialog --stdout --title "$PN" --yesno "Set password for user $USER?" 0 0
retval=$?
case $retval in
  0)
     while [ -z "$PASSWD" ] ; do
       PASSWD=$(dialog --stdout --title "$PN" --passwordbox "Set password (hidden typing):" 0 0)
       if [ -n "$PASSWD" ] ; then
         echo "$USER:$PASSWD" | sudo chpasswd
       else
         dialog --stdout --title "$PN" --msgbox "Error while setting password. Empty passwords are not accepted." 6 65
       fi
     done
     ;;
  *)
#     asklock
     ;;
esac
}

if ! isgrmlcd ; then
   [[ $(tty) == /dev/tty* ]] && lockcons || lockx
else
   if [[ $(tty) == /dev/tty* ]] ; then
     welcome_screen
     askpwd
     askvlock
   elif [ -n "$DISPLAY" ] ; then
     welcome_screen
     askpwd
     askxlock
   fi
fi

## END OF FILE #################################################################