#!/bin/sh
# $Id: postinst 434 2003-02-14 13:54:32Z godisch $

set -e
. /usr/share/debconf/confmodule
db_version 2.0

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

maxfetch_default=300
defexpire_default=14

case "$1" in
configure)
	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 /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 we are allowed to overwrite $server_config and $debian_config...
	db_get noffle/debconf || RET=""
	if [ "$RET" != false ]; then
		db_get noffle/port || RET=""
		port="$RET"
		[ -z "$port" -o "$port" = 119 ] && port=nntp
		# maybe disabled only, e.g. dpkg -r noffle
		update-inetd --remove "/usr/bin/noffle -r" || :
		update-inetd --group MAIL --add "$port\tstream\ttcp\tnowait\tnews\t/usr/sbin/tcpd /usr/bin/noffle -r"
		db_get noffle/server || RET=""
		server="$RET"
		[ "$server" ] || server=news
		db_get noffle/username || RET=""
		username="$RET"
		db_get noffle/password || RET=""
		password="$RET"
		db_get noffle/fetchmode || RET=""
		fetchmode="$RET"
		[ "$fetchmode" ] || if [ -x /usr/sbin/pppd ]; then
			fetchmode=ppp
		else
			fetchmode=cron
		fi
		db_get noffle/maxfetch || RET=""
		maxfetch="$RET"
		[ "$maxfetch" ] || maxfetch="$maxfetch_default"
		db_get noffle/default-expire || RET=""
		defexpire="$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
	# 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
	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
	;;
abort-upgrade|abort-remove|abort-deconfigure)
	;;
*)
	echo "postinst called with unknown argument '$1'" >&2
	exit 1
	;;
esac

if [ -x /etc/init.d/noffle ]; then
	update-rc.d noffle defaults > /dev/null
	invoke-rc.d noffle start || :
fi

exit 0