#!/bin/sh

set -e

[ "$DEBIAN_SCRIPT_DEBUG" ] && set -vx

case "$1" in
	configure)
	# continue below
	;;

	abort-upgrade|abort-remove|abort-deconfigure)
	exit 0
	;;

	*)
	echo "postinst called with unknown argument \`$1'" >&2
	exit 0
	;;
esac


# Load debconf
. /usr/share/debconf/confmodule

# Include CARNet functions
. /usr/share/carnet-tools/functions.sh

PKG="webalizer-cn"
WDIR="/var/www/webalizer"
WHTPASSWD="$WDIR/.htpasswd"
WCONF="/etc/webalizer/webalizer.conf"
WCONFBAK=`basename $WCONF`
oldreporttitle="Usage Statistics for"
reporttitle="Statistika pristupa za"


if [ -f "$WCONF" ]; then

	# Backup first.
	if cp_check_and_backup "$WCONF"; then
		cp_echo "CN: Old $WCONF saved as \"/var/backups/$WCONFBAK.bak\"."
	fi

	# Check for OutputDir
	temp=`awk 'tolower($1) == "outputdir" { print $2; }' $WCONF | tail -n 1`
	if [ "$temp" != "$WDIR" ]; then
		db_set webalizer/directory "$temp" || true
	fi

	# Check for ReportTitle
	temp=`awk 'tolower($1) == "reporttitle" { for(i=2; i<NF; i++) printf("%s ", $i); print $(NF) }' $WCONF | tail -n 1`
	if [ "$temp" = "$oldreporttitle" ]; then

		temp_re="^[[:space:]]*ReportTitle[[:space:]]*${oldreporttitle}$"
		cp_check_and_sed "." \
			"s/$temp_re/ReportTitle	${reporttitle}/I" \
			"$WCONF" || true
		db_set webalizer/doc_title "$reporttitle" || true
	fi
else
	cp_echo "CN: Configuration file $WCONF is missing."
fi

db_stop || true


# Check Apache2 web server configuration and reload Apache2 web server.
#
if /usr/sbin/apache2ctl configtest 2>/dev/null; then

	# Reload Apache2 web server.
	if [ -x "/etc/init.d/apache2" ]; then
	    if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
		invoke-rc.d apache2 reload || true
	    else
		/etc/init.d/apache2 reload || true
	    fi
	fi
else

	# Something is broken.
	cp_echo "CN: Your Apache2 configuration is broken."
	cp_echo "CN: Please, check the service after the installation finishes!"
fi


# Generate e-mail message with informations (username and password).
#
if [ ! -f "$WHTPASSWD" ]; then
	passwd=`makepasswd --chars 8`
	htpasswd -bcm $WHTPASSWD admin $passwd 2> /dev/null
	cp_echo ""
	cp_echo "CN: Webalizer URL is http://`hostname -f`/stats/"
	cp_echo "CN:            User: admin"
	cp_echo "CN:        Password: $passwd"
        cp_echo ""
	cp_echo "CN: Use \"htpasswd -m $WHTPASSWD admin\" to change it."
fi


# Mail root.
#
cp_mail "$PKG"

exit 0