#!/bin/bash
#
# install 2006-04-02, last edit 2008-08-13
#
# script to install the junkview suite
#
# Copyright (C) 2006 Grant Coady <grant@bugsplatter.id.au> GPLv2
#
# home site: <http://bugsplatter.id.au/junkview/>
#
# This script MUST be run as root from the directory the junkview 
#  tarball was unpacked to, prior to using junkview.
#
### user config ###############################################################
#
# codepath and datapath MUST be set in etc/junkview.conf prior to running 
#  this installer for the first time, defaults are /usr/local and 
#  /usr/local/share/junkview

if [ -f /etc/junkview.conf ]
then
	# if we have prior install, use /etc/junkview.conf
	codepath=$(awk '/^codepath/ {print $2}' /etc/junkview.conf)
	datapath=$(awk '/^datapath/ {print $2}' /etc/junkview.conf)
else
	# else use tarball default
	codepath=$(awk '/^codepath/ {print $2}' etc/junkview.conf)
	datapath=$(awk '/^datapath/ {print $2}' etc/junkview.conf)
fi

# this example lets a semi-privileged user perform database updates

BIN_OWNER="root:wheel"			# bin and /etc/rc.s/rc.junkview
DATA_OWNER="root:wheel"			# data files
#
BIN_PERMS="775"
DATA_PERMS="664"
DDIR_PERMS="775"

### take care below here ######################################################

ME="install"
if [ $(id -u) -ne 0 ]			# must be root to run this script
then
	printf "\n$ME: fatal: need to be root.\n\n"
	exit 1
fi

DOT_CONF="/etc/junkview.conf"		# configuration file
DIR_SOURCE=$PWD				# where user unpacked the tarball

DIR_BIN="$codepath/bin"			# user scripts
DIR_RC_D="/etc/rc.d"			# ip2cn-server start|stop script

UNINSTALL="$DIR_BIN/junkview-uninstall.sh" # installer writes an uninstaller

write_uninstall_header()
{
	# start new uninstall script, note we make this a little difficult 
	#  to use by not supplying shebang nor marking executable
	printf "##\n## junkview uninstaller, written $(date)\n##\n##" \
			> $UNINSTALL
	echo ' home site: <http://bugsplatter.id.au/junkview/>' \
			>> $UNINSTALL
	printf "\necho \"\n uninstalling junkview, installed on $(date)\"\n" \
			>> $UNINSTALL
}
write_uninstall_footer()
{
	printf "\n#remove $DIR_BIN/junkview-uninstall.sh\n" >> $UNINSTALL
	printf "rm -f $DIR_BIN/junkview-uninstall.sh\n" >> $UNINSTALL
	printf "\necho \" Note:\t$DOT_CONF not removed\n\"\n" >> $UNINSTALL

	printf "  $DIR_BIN:\n    junkview-uninstall.sh\n"
}
write_junkview_conf()
{
	# perhaps create a new /etc/junkview.conf, the slack way ;)
	printf "Install junkview:\n  /etc:\n    junkview.conf"
	if [ -r $DOT_CONF ]
	then
		cat $DIR_SOURCE/$DOT_CONF > $DOT_CONF.new
		echo ".new"
	else
		cat $DIR_SOURCE/$DOT_CONF > $DOT_CONF
		echo ""
	fi
}
copy_data_files()
{
	# data files
	# make sure we have a destination data directory, copy data, chown it

	echo "  $datapath:"
	[ ! -d $datapath ] && mkdir --parents $datapath
	chown $DATA_OWNER $datapath
	chmod $DDIR_PERMS $datapath

	cd $DIR_SOURCE/data
	for xx in *
	do
		echo "    $xx"
		rm -f $datapath/$xx
		cp --preserve=timestamps $xx $datapath
	done
	chown $DATA_OWNER $datapath/*
	chmod $DATA_PERMS $datapath/*
	cd ..

	printf "\n# remove data files\nrm -rf $datapath\n" >> $UNINSTALL
}
copy_bin_files()
{
	# bin scripts
	echo "  $codepath/bin:"
	printf "\n#remove bin scripts\n" >> $UNINSTALL

	cd $DIR_SOURCE/bin
	for xx in *
	do
		echo "    $xx"
		rm -f $codepath/bin/$xx
		cp $xx $codepath/bin
		chown $BIN_OWNER $codepath/bin/$xx
		chmod $BIN_PERMS $codepath/bin/$xx
		echo rm -f $DIR_BIN/$xx >> $UNINSTALL
	done
	cd ..
}
copy_rc_junkview()
{
	# rc.junkview

	echo "  $DIR_RC_D:"
	rm -f $DIR_RC_D/rc.junkview

	echo "    rc.junkview, rc.ip2cn-server"
	cp $DIR_SOURCE/rc.d/rc.junkview $DIR_RC_D
	chown $BIN_OWNER $DIR_RC_D/rc.junkview
	chmod $BIN_PERMS $DIR_RC_D/rc.junkview

	printf "\n#remove rc.junkview script\n" >> $UNINSTALL
	printf "$DIR_RC_D/rc.junkview stop\n"   >> $UNINSTALL
	printf "rm -f $DIR_RC_D/rc.junkview\n"  >> $UNINSTALL
}
copy_readme()
{
	local docdir="$codepath/doc/junkview"
	printf "  $docdir:\n    README\n"

	[ ! -d "$docdir" ] && mkdir --parents $docdir
	chown $DATA_OWNER $docdir
	chmod $DDIR_PERMS $docdir

	cp -f $DIR_SOURCE/README $docdir
	chown $DATA_OWNER $docdir/README

	printf "\n#remove doc\nrm -rf $docdir\n" >> $UNINSTALL
}

write_uninstall_header
write_junkview_conf
copy_data_files
copy_bin_files
copy_rc_junkview
copy_readme
write_uninstall_footer

# perhaps update the database and kick ip2cn-server
if [ "$codepath" == "/usr" ]
then
	junkview-update-database

	echo "
	Next, you need to configure your iptables to log
	'JLE' entries, see the README and other documentation.
	"
else
	echo "
	Run 'junkview-update-database' as user to update 
	the database and optionally start the ip2cn-server.

	After that, you need to configure your iptables to log 
	'JLE' entries, see the README and other documentation.
	"
fi
# end