#!/bin/sh -e

init_inn_files() {
    PATHDB='/var/lib/news'
    if [ ! -d "$PATHDB" ]; then
      PATHDB="$(/usr/lib/news/bin/innconfval pathdb)"
    fi
    if [ -z "$PATHDB" ]; then
	echo "Cannot determine the database path, aborting."
	exit 1
    fi
    cd $PATHDB

    for file in active newsgroups; do
	if [ ! -f $file ]; then
	    echo "Installing initial content for $PATHDB/$file"
	    install -m 644 -o news -g news \
		/usr/lib/news/examples/$file .
	fi
    done

    if [ ! -f history.dir ]; then
      echo -n "Building history database in $PATHDB... "
      if ! /usr/lib/news/bin/makehistory; then
        echo "failed!"
        return
      fi
      if ! /usr/lib/news/bin/makedbz -i -o -s 300000; then
        echo "failed!"
        return
      fi
      chown news:news history*
      chmod 664 history*
      echo "done."
    fi

    if [ ! -f active.times ]; then
	touch active.times
	chown news:news active.times
	chmod 644 active.times
    fi

    # squelch initial noise in email if this isn't present
    if [ ! -f .news.daily ]; then
	touch .news.daily
	chown news:news .news.daily
    fi

    # make sure typical log files exist, and can be rotated
    if [ ! -d /var/log/news ]; then
	install -d -m 775 -o news -g news /var/log/news
    fi
    cd /var/log/news
    [ -f news.notice ] || touch news.crit news.err news.notice
    chown news:news . OLD path news.crit news.err news.notice

    if [ -x /etc/init.d/inn2 ]; then
	update-rc.d inn2 defaults > /dev/null
    fi
}

check_usenet_alias() {
    # must have an alias for user usenet, point it to root by default
    if [ -f /etc/aliases ] && ! grep -q '^usenet:' /etc/aliases \
	    && ! getent passwd usenet > /dev/null; then
	echo "Adding alias for pseudo-user usenet to /etc/aliases."
	echo "usenet: root" >> /etc/aliases
	if command -v newaliases > /dev/null; then newaliases; fi
    fi
}

upgrade_inn_conf() {
  [ "$2" ] || return 0

  if dpkg --compare-versions $2 lt 2.6.0-1; then
    /usr/lib/news/bin/innupgrade -f /etc/news/inn.conf
  fi
}

rebuild_history_index() {
    [ -f /var/lib/news/must-rebuild-history-index ] || return 0

    invoke-rc.d inn2 stop

    cd /var/lib/news
    HLINES=$(tail -1 history.dir | awk '{ print $1 }')
    [ "$HLINES" ] || HLINES=1000000
    echo "Rebuilding the history index for $HLINES lines, please wait..."
    rm history.hash history.index history.dir
    su news -s /bin/sh -c "/usr/lib/news/bin/makedbz -s $HLINES -f history"

    rm /var/lib/news/must-rebuild-history-index
}

rebuild_overview() {
    [ -f /var/lib/news/must-rebuild-overview ] || return 0

    invoke-rc.d inn2 stop

    OVENABLED=$(/usr/lib/news/bin/innconfval enableoverview)
    if [ -z "$OVENABLED" ]; then
	echo "Cannot determine the overview method used, stopping."
	exit 1
    fi
    if [ $OVENABLED = no -o $OVENABLED = false ]; then
	return 0
    fi

    OVMETHOD=$(/usr/lib/news/bin/innconfval ovmethod)
    if [ -z "$OVMETHOD" ]; then
	echo "Cannot determine the overview method used, stopping."
	exit 1
    elif [ $OVMETHOD = tradindexed -o $OVMETHOD = ovdb ]; then
	OVPATH=$(/usr/lib/news/bin/innconfval pathoverview)
	if [ -z "$OVPATH" ]; then
	    echo "Cannot determine the overview path, aborting."
	    exit 1
	fi
	echo "Deleting the old overview database, please wait..."
	find $OVPATH -type f -not -name DB_CONFIG -print0 | xargs -0 -r rm -f
    elif [ $OVMETHOD = buffindexed ]; then
	echo "Deleting the old overview database, please wait..."
	awk -F : '/^[0-9]/ { print $2 }' < /etc/news/buffindexed.conf | \
	    while read name size; do
		dd if=/dev/zero of="$name" bs=1024 count="$size"
	    done
    else
	echo "Unknown overview method '$OVMETHOD', aborting."
	exit 1
    fi

    echo "Rebuilding the overview database, please wait..."
    su news -s /bin/sh -c "/usr/lib/news/bin/makehistory -F -O -x"

    rm /var/lib/news/must-rebuild-overview
}

start_innd() {
# make sure we can determine the FQDN, since innd won't launch if we can't
if hostname --fqdn > /dev/null 2>&1; then
    invoke-rc.d inn2 start || echo "Could not start INN!"
else
cat <<END


Not starting innd.  The daemon needs to be able to determine the name of
this machine, and your /etc/hosts and/or DNS config is apparently not
allowing this to happen.  After you have fixed things so that 'hostname
--fqdn' returns a reasonable value, you can start the daemon by running
'/etc/init.d/inn2 start'.


END
fi
}

# #690128: if the old MOTD file has been amended by the admin from default,
# then copy it to the new non-conffile nnrpd MOTD file.
# If not then remove the old MOTD conffile, being sure to cater for rollback.
if [ "$1" = "configure" -a "$2" ] &&
        dpkg --compare-versions "$2" le-nl "2.5.3-1~"; then
    if [ -e /etc/news/motd.news.dpkg-backup -a ! -e /etc/news/motd.nnrpd ]; then
        echo "Renaming modified conffile /etc/news/motd.news to /etc/news/motd.nnrpd."
        mv /etc/news/motd.news.dpkg-backup /etc/news/motd.nnrpd
    fi
fi

case "$1" in
    configure)
    init_inn_files
    check_usenet_alias
    upgrade_inn_conf "$@"
    rebuild_history_index
    rebuild_overview
    if [ -z "$2" -o ! -e /run/news/innd.pid ]; then # first install
	start_innd
    else
	ctlinnd -t 20 throttle "upgrade" > /dev/null || true
	ctlinnd -t 20 xexec innd > /dev/null \
	    || { invoke-rc.d inn2 stop && invoke-rc.d inn2 start; } \
	    || echo "Could not restart INN!"
    fi
    ;;
esac

# Automatically added by dh_installtmpfiles/13.24.2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "$(command -v systemd-tmpfiles)" ]; then
		systemd-tmpfiles ${DPKG_ROOT:+--root="$DPKG_ROOT"} --create inn2.conf || true
	fi
fi
# End automatically added section
# Automatically added by dh_installdeb/13.24.2
dpkg-maintscript-helper rm_conffile /etc/news/motd.news 2.5.3-1\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/news/radius.conf 2.6.1-3\~ -- "$@"
# End automatically added section
# Automatically added by dh_installsystemd/13.24.2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# The following line should be removed in trixie or trixie+1
	deb-systemd-helper unmask 'inn2.service' >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'inn2.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'inn2.service' >/dev/null || true
	else
		# Update the statefile to add new symlinks (if any), which need to be
		# cleaned up on purge. Also remove old symlinks.
		deb-systemd-helper update-state 'inn2.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installsystemd/13.24.2
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -z "$DPKG_ROOT" ] && [ -d /run/systemd/system ]; then
		systemctl --system daemon-reload >/dev/null || true
		deb-systemd-invoke start 'inn2.service' >/dev/null || true
	fi
fi
# End automatically added section


exit 0