#! /bin/bash

# A script to try to install a Macromedia SWF screensaver for a user not in the know.
# Attempts at being as foolproof as possible, and yet people will break it somehow.
# Please send notes to flucifredi@novell.com so that we can fix whatever issues we 
# haven't thought of yet. Please include details, if you know to look into the script, 
# you also know how to send feedback :) 
#
# Tested on SLES 9, NLD 9, SUSE 9.3
#
# Mantained by Federico Lucifredi - 0.6a - 8/24/05


if [ ! -e /bin/rm ]
 then 
  echo "rm executable not found -- what the blazes did you do!?!"
  exit 1
fi

if [ ! -e /bin/rpm ]
 then 
  echo "rpm executable not found"
  exit 2
fi

if [ ! -e /usr/bin/wget ]
 then 
  echo "wget executable not found"
  exit 3
fi

if [ ! -e /bin/tar ]
 then 
  echo "tar executable not found"
  exit 4
fi

if [ ! -e /usr/bin/id ]
 then 
  echo "id executable not found"
  exit 5
fi

USERID=`/usr/bin/id -u`

if [ "$USERID" -eq "0" ]
then
 echo "Do not run this as root. Install as the user that will use the screensaver"
 exit 7
fi

GLIBC_VERSION=`/bin/rpm -q --queryformat '%{VERSION}\n'  glibc` 

if [[ "$GLIBC_VERSION" < "2.2" ]]
then
 echo "glibc 2.2 or newer is required" 
 exit 8
fi

if [ "$HOME" = "" ]
then
 echo "HOME is undefined. Bailing..."
 exit 9
fi

# End of sanity checks ---

echo " This script will ateempt an automated install of the Novell Values screensaver on your system."
echo ""

echo " Now downloading the macromedia standalone player 6.x for linux."
echo " This will not interfere with any flash plugins already installed on your system." 
echo ""

if [ ! -e /tmp/screensaver ]
then
 mkdir -p /tmp/screensaver
fi

/usr/bin/wget -N -P /tmp/screensaver http://download.macromedia.com/pub/flash/updates/mx/player6/install_flash_player_6_r79_linux_sa.tar.gz

if [ ! "$?" -eq "0" ]
then
 echo "Unable to download Macromedia flash player 6 - WGET failed."
 exit 10 
fi

echo ""

/usr/bin/wget -N -P /tmp/screensaver http://primates.ximian.com/~flucifredi/nvalues/nscreensaver.tar.gz

if [ ! "$?" -eq "0" ]
then
 echo "Unable to download Novell Values tarball - WGET failed."
 exit 11 
fi

echo ""
echo "Now uncompressing..."

/bin/tar -C /tmp/screensaver/ -zxvf /tmp/screensaver/install_flash_player_6_r79_linux_sa.tar.gz  > /dev/null

/bin/tar -C /tmp/screensaver/ -zxvf /tmp/screensaver/nscreensaver.tar.gz  > /dev/null

echo " Now installing screensaver into $HOME/.screensaver"

if [ ! -e $HOME/.screensaver ]
then
 mkdir $HOME/.screensaver
fi

mv -f /tmp/screensaver/install_flash_player_6_linux_sa/gflashplayer $HOME/.screensaver
mv -f /tmp/screensaver/Novell_Values.swf $HOME/.screensaver
mv -f /tmp/screensaver/nwrapper $HOME/.screensaver
mv -f /tmp/screensaver/N.gif $HOME/.screensaver

echo "mode:           one"  > $HOME/.xscreensaver
echo "selected:       0" >> $HOME/.xscreensaver
echo " " >> $HOME/.xscreensaver
echo "programs: \\" >> $HOME/.xscreensaver
echo "\"Novell Values Screensaver\" $HOME/.screensaver/nwrapper $HOME \n\\" >> $HOME/.xscreensaver

echo ""

if [ -e /usr/X11R6/bin/xscreensaver ] #SLES and NLD
then
 PREFIX="/usr/X11R6/bin"
elif [ -e /usr/bin/xscreensaver ] #SUSE
then
 PREFIX="/usr/bin"
else
 echo "xscreensaver is required" 
 exit 12 
fi

VERSION=`$PREFIX/xscreensaver-command -version`

if [[ "$VERSION"  < "4" ]]
then
 echo "xscreensaver version 4 or newer required"
 exit 13 
fi

echo "Now Select your preferences"

$PREFIX/xscreensaver-command -prefs

# cleaning up after ourselves...

echo " Cleaning up..."
/bin/rm -Rf /tmp/screensaver

echo "Done."