#!/bin/sh
#
# Copyright © 2001-2008 Jamie Zawinski <jwz@dnalounge.com>
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation.  No representations are made about the suitability of this
# software for any purpose.  It is provided "as is" without express or 
# implied warranty.
#
# Created: 9-Jun-2001
#
# This script re-initializes the contents of the kiosk directories with
# the template in /home/kiosk-ro/.

progname=`echo "$0" | sed 's@^.*/@@'`;

olduser="guest-ro"
allusers="guest01 guest02 guest03 guest04 guest05 guest06 guest07"


usage() {
  echo "usage: $progname [--build-template fromdir | dirs...]" >&2
  exit 1
}

if [ x"$1" = x"--build-template" ]; then
  if [ $# -ne 2 ]; then
   usage
  fi
  olduser="$2"
  allusers="guest-ro"

elif [ $# -gt 0 ]; then
  allusers="$*"
fi

tmpdir=`mktemp -d /tmp/khr.XXXXXX`

for newuser in $allusers ; do

  if [ \! -d "/home/$newuser" ]; then
    echo "$progname: /home/$newuser does not exist" >&2
    usage
  fi

  if [ "$olduser" != "$newuser" ]; then

#    echo "$progname: generating /home/$newuser from /home/$olduser" >&2
#    echo "" >&2

    srcdir="/home/$olduser"
    rsync -a --delete "$srcdir/" "$tmpdir/"

    find "$tmpdir" -type f | while read file ; do
      if grep -q "$olduser" "$file" ; then
        #echo "editing $file"
        perl -0777 -i -p -e "s/$olduser/$newuser/g" "$file"
      fi
    done

    chown -Rh "$newuser:guest" "$tmpdir"
  fi
done

if [ "$newuser" = "guest-ro" ]; then
  rm -rf /home/guest-ro
  mv "$tmpdir" /home/guest-ro

  rm -rf \
   /home/guest-ro/.*.cache* \
   /home/guest-ro/.bash* \
   /home/guest-ro/.gconf*/*lock/* \
   /home/guest-ro/.icq/history/ \
   /home/guest-ro/.mozilla/firefox/*.default/Cache* \
   /home/guest-ro/.mozilla/firefox/*.default/lock \
   /home/guest-ro/.netscape-cache/* \
   /home/guest-ro/.netscape/cache/* \
   /home/guest-ro/.recently-used* \
   /home/guest-ro/.ssh/* \
   /home/guest-ro/.xscreensaver-getimage.cache \
   /home/guest-ro/.xsession-errors \
   /home/guest-ro/.ICEauthority \
   /home/guest-ro/.MCOM-cache/* \
   /home/guest-ro/.Xauthority \
   /home/guest-ro/tmp/.??* \
   /home/guest-ro/tmp/*

else

# --times
  rsync --recursive --links --perms --owner --group --checksum --delete \
    --exclude '.ICEauthority' \
    --exclude '.Xauthority' \
    --exclude '.xscreensaver-getimage.cache' \
    "$tmpdir/" "/home/$newuser"

  rm -rf "$tmpdir"

  # nuke /tmp/hsperfdata_guest01/ and /tmp/orbit-guest01/
#  rm -rf /tmp/*"$newuser"

  # nuke all files/dirs in /tmp/ owned by $newuser
  find /tmp/ -user "$newuser" -prune -exec  rm -rf '{}' \;

fi