#!/bin/sh
# $Id: postinst 559 2003-06-20 05:46:49Z godisch $

set -e

[ "$1" = configure ] || exit 0

server_config=/etc/news/noffle.conf
debian_config=/etc/default/noffle

maxfetch_default=300
defexpire_default=14

if dpkg --compare-versions "$2" lt-nl 1.1.2-1; then
	echo
	echo "/etc/noffle/conf moved to $server_config, /etc/noffle/conf.debian"
	echo "moved to $debian_config. /etc/noffle and /var/log/noffle are not"
	echo "used any longer, you may remove them. noffle expiration logs are"
	echo "still available through syslog."
	echo
	sleep 2
	mv -f /etc/noffle/conf $server_config || :
	mv -f /etc/noffle/conf.debian $debian_config || :
	mv -f /etc/noffle/conf.old $server_config.old 2> /dev/null || :
	mv -f /etc/noffle/conf.debian.old $debian_config.old 2> /dev/null || :
	rmdir --ignore-fail-on-non-empty /etc/noffle
fi

if dpkg --compare-versions "$2" eq 1.1.2-1; then
	# 1.1.2-1 was in unstable only, don't notify
	mv -f /etc/noffle.conf $server_config || :
	mv -f /etc/noffle.conf.old $server_config.old 2> /dev/null || :
fi

if [ -e /usr/share/debconf/confmodule ]; then
	. /usr/share/debconf/confmodule
	db_version 2.0
	db_get noffle/debconf
	if [ "$RET" = true ]; then
		db_get noffle/port
		port="$RET"
		if [ -z "$port" -o "$port" = 119 ]; then
			port=nntp
		fi
		# maybe disabled only, e.g. dpkg -r noffle
		update-inetd --remove "/usr/bin/noffle -r" || :
		update-inetd --group MAIL --add "$port\tstream\ttcp\tnowait\tnews\t/usr/sbin/tcpd /usr/bin/noffle -r"
		db_get noffle/server
		server="$RET"
		[ "$server" ] || server=news
		db_get noffle/username
		username="$RET"
		db_get noffle/password
		password="$RET"
		db_get noffle/fetchmode
		fetchmode="$RET"
		[ "$fetchmode" ] || if [ -x /usr/sbin/pppd ]; then
			fetchmode=ppp
		else
			fetchmode=cron
		fi
		db_get noffle/maxfetch
		maxfetch="$RET"
		[ "$maxfetch" ] || maxfetch="$maxfetch_default"
		db_get noffle/default-expire
		defexpire="$RET"
		[ "$defexpire" ] || defexpire="$defexpire_default"
		# try to be idempotent
		if [ ! -e $server_config.new -a ! -e $debian_config.new ]; then
			# make some backup files
			cmp -s $server_config $server_config.old || \
				cp -pf $server_config $server_config.old 2> /dev/null || :
			cmp -s $debian_config $debian_config.old || \
				cp -pf $debian_config $debian_config.old 2> /dev/null || :
		fi
		# $server_config may contain sensitive information for NNTP authentication
		umask 027
		# we need to use sed instead of Perl to avoid another package dependency
		cat /usr/share/noffle/noffle.conf | \
			sed "s/^server[[:space:]].*/server $server $username $password/" | \
			sed "s/^max-fetch[[:space:]].*/max-fetch $maxfetch/" | \
			sed "s/^default-expire[[:space:]].*/default-expire $defexpire/" \
			> $server_config.new
		chgrp news $server_config.new
		umask 022
		cat /usr/share/noffle/conf.debian | \
			sed "s/^NOFFLE_FETCHMODE=.*/NOFFLE_FETCHMODE=$fetchmode/" \
			> $debian_config.new
		mv -f $server_config.new $server_config
		mv -f $debian_config.new $debian_config
	fi
	db_stop
else
	# no debconf available
	if [ ! -e $server_config ]; then
		umask 027
		cp -f /usr/share/noffle/noffle.conf $server_config.new
		chgrp news $server_config.new
		mv -fb $server_config.new $server_config
	fi
	if [ ! -e $debian_config ]; then
		umask 022
		cp -f /usr/share/noffle/conf.debian $debian_config.new
		mv -fb $debian_config.new $debian_config
	fi
	if ! grep -q "/usr/bin/noffle -r" /etc/inetd.conf; then
		# just an example, the user need to activate it himself
		update-inetd --group MAIL --add "nntp\tstream\ttcp\tnowait\tnews\t/usr/sbin/tcpd /usr/bin/noffle -r"
		update-inetd --disable "$port"
	fi
fi

# sanity checks
chown -R news:news /var/lock/noffle /var/spool/noffle
chmod -R go-w      /var/lock/noffle /var/spool/noffle
find /var/lock/noffle /var/spool/noffle -type d -print0 | xargs -0 chmod g+s

# init.d startup
update-rc.d noffle defaults > /dev/null
if [ -x /usr/sbin/invoke-rc.d ]; then
	invoke-rc.d noffle start
elif [ -x /etc/init.d/noffle ]; then
	/etc/init.d/noffle start
fi

if [ -z "$2" ]; then
	echo
	echo "You need to query your parent NNTP server manually for a group overview"
	echo "and descriptions. Have a look at /usr/share/doc/noffle/README.Debian for"
	echo "information how to do this."
	echo
	sleep 2
fi

exit 0