#!/sbin/runscript
# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-dns/pdns-recursor/files/precursor,v 1.5 2011/12/04 10:13:16 swegener Exp $

command="/usr/sbin/pdns_recursor"
command_args="--daemon=yes &>/dev/null"

rec_control="/usr/sbin/rec_control"

pidfile="/run/powerdns/pdns_recursor.pid"

configfile="/etc/powerdns/recursor.conf"

extra_started_commands="ping reload_acls reload_zones top_remotes get_all"
extra_stopped_commands="monitor"

description="PowerDNS Recursor"
description_ping="Check if server is alive."
description_reload_acls="Reload access control lists."
description_reload_zones="Reload data about all authoritative and forward zones."
description_top_remotes="Shows the top-20 most active remote hosts."
description_get_all="Retrieve all statistics in one go."
description_monitor="Starts PowerDNS Recursor in foreground with logging enabled."

_update_chroot_environment() {
	local piddir="$(dirname ${pidfile})"
	local chroot=`awk -F= '{ if (tolower($1) == "chroot") { print $2 } }' "${configfile}" | tr -d '"' 2> /dev/null`
	if [ ! -z "${chroot}" ]; then
		ebegin "Updating PowerDNS Recursor chroot environment in '${chroot}'"
			checkpath -d -m 0775 -o root:root "${chroot}/etc"
			
			if [ -r '/etc/localtime' ]; then
				cp --preserve --force /etc/localtime "${chroot}/etc"
			fi
			
			checkpath -d -m 0775 -o root:root "${chroot}/etc/powerdns"
			cp --preserve --force ${configfile} "${chroot}/etc/powerdns"
			
			# Create folder structure for pidfile/sockets
			local chroot_piddir="${chroot}${piddir}"
			checkpath -d -m 0775 -o root:root "${chroot}/run"
			checkpath -d -m 0775 -o root:root "${chroot_piddir}"
			
			# We need to delete any previous pidfile location or symlink creation
			# may fail.
			rm -rf "${piddir}"
			
			ln -s "${chroot_piddir}" "${piddir}"
		eend $?
	else
		einfo "Skipping update of chroot environment, because no 'chroot=' directive in '${chroot}' found!"
		checkpath -d -m 0775 -o root:root "${piddir}"
	fi
}

depend() {
	need net
}

start_pre() {
	_update_chroot_environment
}

ping() {
	${rec_control} ping
}

reload_acls() {
	_update_chroot_environment
	${rec_control} reload-acls
}

reload_zones() {
	${rec_control} reload-zones
}

top_remotes() {
	${rec_control} top-remotes
}

get_all() {
	${rec_control} get-all
}

monitor() {
	_update_chroot_environment
	${command} --daemon=no --quiet=no  --log-common-errors=yes
}