#!/bin/bash
#
# Start the X2Go Session Broker standalone daemon
#
# Copyright © 2012 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
# Distributable under the terms of the GNU AGPL version 2.
#
### BEGIN INIT INFO
# Provides:          x2gobroker-daemon
# Required-Start:    $network $remote_fs $syslog sshd
# Required-Stop:     $network $remote_fs $syslog sshd
# Default-Start:     3 5
# Default-Stop:      0 1 6
# Short-Description: X2Go Session Broker standalone daemon
# Description:       X2Go Session Broker daemon comes with its own HTTP daemon
### END INIT INFO

. /etc/rc.status

# First reset status of this service
rc_reset

DAEMON=/usr/sbin/x2gobroker
test -d /run && RUNDIR=/run || RUNDIR=/var/run
PIDFILE_BROKER=$RUNDIR/x2gobroker/x2gobroker-daemon.pid
DEBIANCONFIG_COMMON=/etc/default/python-x2gobroker
DEBIANCONFIG_DAEMON=/etc/default/x2gobroker-daemon

test -x "$DAEMON" || exit 0

START_BROKER=false
DAEMON_BIND_ADDRESS=0.0.0.0:8080
X2GOBROKER_DEBUG=0
X2GOBROKER_DAEMON_USER='x2gobroker'
X2GOBROKER_DAEMON_GROUP='x2gobroker'
X2GOBROKER_DEFAULT_BACKEND="zeroconf"
X2GOBROKER_CONFIG="/etc/x2go/x2gobroker.conf"
X2GOBROKER_SESSIONPROFILES="/etc/x2go/broker/x2gobroker-sessionprofiles.conf"
X2GOBROKER_AGENT_CMD="/usr/lib64/x2go/x2gobroker-agent"
X2GOBROKER_SSL_CERTFILE=
X2GOBROKER_SSL_KEYFILE=
test -f $DEBIANCONFIG_COMMON && . $DEBIANCONFIG_COMMON
test -f $DEBIANCONFIG_DAEMON && . $DEBIANCONFIG_DAEMON

if ! getent passwd $X2GOBROKER_DAEMON_USER 1>/dev/null 2>/dev/null; then
	X2GOBROKER_DAEMON_USER=nobody
fi
if ! getent group $X2GOBROKER_DAEMON_GROUP 1>/dev/null 2>/dev/null; then
	X2GOBROKER_DAEMON_GROUP=nogroup
fi

# create PID directory
mkdir -p $RUNDIR/x2gobroker
chown $X2GOBROKER_DAEMON_USER:$X2GOBROKER_DAEMON_GROUP $RUNDIR/x2gobroker
chmod 0770 $RUNDIR/x2gobroker

# mend user ID variables when --chuid $X2GOBROKER_DAEMON_USER is used with start-stop-daemon
export LOGNAME=$X2GOBROKER_DAEMON_USER
export USER=$X2GOBROKER_DAEMON_USER
export USERNAME=$X2GOBROKER_DAEMON_USER

export X2GOBROKER_DEBUG
export X2GOBROKER_DAEMON_USER
export X2GOBROKER_DAEMON_GROUP
export X2GOBROKER_CONFIG
export X2GOBROKER_DEFAULT_BACKEND
export X2GOBROKER_SESSIONPROFILES
export X2GOBROKER_AGENT_CMD
export X2GOBROKER_SSL_CERTFILE
export X2GOBROKER_SSL_KEYFILE

su_command="su - ${X2GOBROKER_DAEMON_USER} -m -c "

case "$1" in
    start)
	echo -n "Starting X2go Session broker standalone daemon ... "
	export HOME=/var/lib/x2gobroker
	startproc -f -u $X2GOBROKER_DAEMON_USER -g $X2GOBROKER_DAEMON_GROUP -p $PIDFILE_BROKER $DAEMON -b $DAEMON_BIND_ADDRESS -C $X2GOBROKER_CONFIG 
	pidof x2gobroker > $PIDFILE_BROKER
	rc_status -v
	;;
    stop)
	echo -n "Stopping X2go Session broker standalone daemon ... "
	killproc -TERM -p $PIDFILE_BROKER x2gobroker
	rm -f $PIDFILE_BROKER

	# Remember status and be verbose
	rc_status -v
	;;
    restart)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop
	$0 start

	# Remember status and be quiet
	rc_status
	;;
    status)
	echo -n "Checking for X2go Session broker ... "
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.

	# Status has a slightly different for the status command:
	# 0 - service running
	# 1 - service dead, but /var/run/  pid  file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running

	# NOTE: checkproc returns LSB compliant status values.
	checkproc -p $PIDFILE_BROKER x2gobroker
	rc_status -v
	;;
    *)
	echo "Usage: $0 {start|stop|status|restart}"
	exit 1
	;;
esac
rc_exit