#!/bin/sh

# roaraudio initscript
#
# Copyright (c) 2008-2010 Philipp 'ph3-der-loewe' Schafft <lion@lion.leolix.org>
# Copyright (c)      2007 Javier Fernandez-Sanguino <jfs@debian.org>
#
# This is free software; you may redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3,
# or (at your option) any later version.
#
# This is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License with
# the Debian operating system, in /usr/share/common-licenses/GPL;  if
# not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
#
### BEGIN INIT INFO
# Provides:          roaraudio
# Required-Start:    $network $local_fs $remote_fs $syslog
# Required-Stop:     $network $local_fs $remote_fs $syslog
# Should-Start:
# Should-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: sound server for audio mixing
# Description:       RoarAudio is a server for audio mixing. Its main purpose is to mix audio from
#                    different clients before sending it to its outputs (for example a soundcard).
#                    It is completely network transparent (UNIX sockets, TCP/IP, DECnet) and
#                    supports many common codecs like Ogg Vorbis, Speex or FLAC.
### END INIT INFO

#set -e

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/roard
ROARCTL=/usr/bin/roarctl
NAME=roaraudio
DESC="RoarAudio"

DAEMON_BN=`basename $DAEMON`

PIDFILE=/var/run/$DAEMON_BN.pid
SCRIPTNAME=/etc/init.d/$NAME

USER_LIST="$DAEMON_BN roard roar nobody";

# List of files to chown to the daemon user
CHOWN_LIST=''

# Gracefully exit if the package has been removed.
test -x $DAEMON || exit 0;

# Read config file if it is present.
if [ -r /etc/default/$NAME ]
then
    . /etc/default/$NAME
fi

if [ "$ROARAUDIO_DEFAULT_SOCKET" != '' ]
then
 ln -s "$ROARAUDIO_DEFAULT_SOCKET" /etc/roarserver
fi

ROARD_OPTS="--log-syslog --daemon $ROARD_OPTS"

[ "$PIDFILE"        = ''       ] || ROARD_OPTS="--pidfile $PIDFILE $ROARD_OPTS"
[ "$ROARD_REALTIME" = 'YES'    ] && ROARD_OPTS="--realtime $ROARD_OPTS"
[ "$ROARD_REALTIME" = 'DOUBLE' ] && ROARD_OPTS="--realtime --realtime $ROARD_OPTS"

[ "$ROARD_LOCATION"    = ''    ] || ROARD_OPTS="--location '$ROARD_LOCATION' $ROARD_OPTS"
[ "$ROARD_DESCRIPTION" = ''    ] || ROARD_OPTS="--description '$ROARD_DESCRIPTION' $ROARD_OPTS"

case "$ROARD_AF" in
  UNIX|unix)
   ROARD_OPTS="-u $ROARD_OPTS"
  ;;
  TCP|tcp)
   ROARD_OPTS="-t $ROARD_OPTS"
  ;;
  DECnet|DECNET|decnet)
   ROARD_OPTS="-n $ROARD_OPTS"
  ;;
esac

ESD_OPTS=''

case "$ROARD_EMUL_ESD_AF" in
  UNIX|unix)
   ROARD_PROFILES="esd-unix $ROARD_PROFILES"
   mkdir /tmp/.esd/ 2> /dev/null;
   CHOWN_LIST="$CHOWN_LIST /tmp/.esd/"
  ;;
  TCP|tcp)
   _host='localhost';
   [ "$ROARD_HOST" = '' ]   || _host="$ROARD_HOST"
   ESD_OPTS="--new-sock --proto esd -t -b $_host -p 16001"
  ;;
esac

RSOUND_OPTS=''

case "$ROARD_EMUL_RSOUND_AF" in
  UNIX|unix)
   ROARD_PROFILES="rsound-unix $ROARD_PROFILES"
  ;;
  TCP|tcp)
   _host='localhost';
   [ "$ROARD_HOST" = '' ]   || _host="$ROARD_HOST"
   RSOUND_OPTS="--new-sock --proto rsound -t -b $_host -p 12345"
  ;;
  DECnet|DECNET|decnet)
   ROARD_PROFILES="rsound-dnet $ROARD_PROFILES"
  ;;
esac

[ "$ROARD_SOCKET" = '' ]  || ROARD_OPTS="--sock $ROARD_SOCKET $ROARD_OPTS"
[ "$ROARD_PORT"   = '' ]  || ROARD_OPTS="--port $ROARD_PORT $ROARD_OPTS"

if [ "$ROARD_OBJECT" = '' ]
then
 [ "$ROARD_HOST" = '' ]   || ROARD_OPTS="--bind $ROARD_HOST $ROARD_OPTS"
else
 ROARD_OPTS="--sock $ROARD_HOST::$ROARD_OBJECT $ROARD_OPTS"
fi

[ "$ROARD_SLP"  = 'YES' ] && ROARD_OPTS="--slp $ROARD_OPTS"

[ "$ROARD_RATE"    = '' ] || ROARD_OPTS="-R $ROARD_RATE $ROARD_OPTS"
[ "$ROARD_CHANNEL" = '' ] || ROARD_OPTS="-C $ROARD_CHANNEL $ROARD_OPTS"
[ "$ROARD_BITS"    = '' ] || ROARD_OPTS="-B $ROARD_BITS $ROARD_OPTS"

[ "$ROARD_DRIVER" = '' ]  || ROARD_OPTS="-o $ROARD_DRIVER $ROARD_OPTS"
[ "$ROARD_DEVICE" = '' ]  || ROARD_OPTS="-O $ROARD_DEVICE $ROARD_OPTS"
[ "$ROARD_DRIVER_OPTIONS" = '' ] && ROARD_DRIVER_OPTIONS='sync'
ROARD_OPTS="-oP -oO $ROARD_DRIVER_OPTIONS $ROARD_OPTS"

[ "$ROARD_MIXERDRV" = '' ]  || ROARD_OPTS="-m $ROARD_MIXERDRV $ROARD_OPTS"
[ "$ROARD_MIXERDEV" = '' ]  || ROARD_OPTS="-M $ROARD_MIXERDEV $ROARD_OPTS"
[ "$ROARD_MIXER_OPTIONS" = '' ]  || ROARD_OPTS="-mO $ROARD_MIXER_OPTIONS $ROARD_OPTS"

[ "$ROARD_SOURCE_RADIONOISE" = 'YES'    ] && ROARD_OPTS="-s radionoise $ROARD_OPTS"

for _p in $ROARD_ROLESTACK
do
 ROARD_OPTS="--rolestack-push $_p $ROARD_OPTS"
done

[ "$ROARD_ACCLEV_GUEST" = '' ]  || ROARD_OPTS="--guest-acclev $ROARD_ACCLEV_GUEST $ROARD_OPTS"
[ "$ROARD_ACCLEV_TRUST" = '' ]  || ROARD_OPTS="--trust-acclev $ROARD_ACCLEV_TRUST $ROARD_OPTS"

[ "$ROARD_AUTHFILE_FILENAME" = '' ]  || ROARD_OPTS="--authfile-gen $ROARD_AUTHFILE_FILENAME $ROARD_OPTS"
[ "$ROARD_AUTHFILE_TYPE"     = '' ]  || ROARD_OPTS="--authfile-type $ROARD_AUTHFILE_TYPE $ROARD_OPTS"
[ "$ROARD_AUTHFILE_ACCLEV"   = '' ]  || ROARD_OPTS="--authfile-acclev $ROARD_AUTHFILE_ACCLEV $ROARD_OPTS"

if [ "$ROARD_USER" = '' ]
then
 for _u in $USER_LIST
 do
  _r=`id -un $_u 2> /dev/null`
  if [ "$_u" = "$_r" ]
  then
   ROARD_USER="$_u";
   break;
  fi
 done
else
 _r=`id -un "$ROARD_USER" 2> /dev/null`
 if [ "$_r" != "$ROARD_USER" ]
 then
  echo "Error starting RoarAudio: can not find configured user $ROARD_USER" >&2
  echo "Hint: re-configure user in /etc/default/$NAME (see ROARD_USER)" >&2
  exit 1;
 fi
fi

if [ "$ROARD_USER" = '' ]
then
 echo "Error starting RoarAudio: can not find any user to run roard as." >&2
 echo "Hint: configure user in /etc/default/$NAME explicitly (see ROARD_USER)" >&2
 exit 1;
else
 ROARD_OPTS="--setuid -U $ROARD_USER $ROARD_OPTS"
fi

ROARD_OPTS="--setgid $ROARD_OPTS"
[ "$ROARD_GROUP"  = '' ]  || ROARD_OPTS="-G $ROARD_GROUP $ROARD_OPTS"

[ "$ROARD_CHROOT" = '' ] || ROARD_OPTS="--chroot $ROARD_CHROOT $ROARD_OPTS"

ROARD_OPTS="$ROARD_OPTS $ESD_OPTS $RSOUND_OPTS"

if [ "$ROARD_PROFILES" != '' ]
then
 _p=`echo "$ROARD_PROFILES" | sed 's/  */ --new-sock --proto-profile /g'`
 ROARD_OPTS="$ROARD_OPTS --new-sock --proto-profile $_p"
fi

for _p in $CHOWN_LIST
do
 chown "$ROARD_USER":"$ROARD_GROUP" "$_p"
done

set -e

case "$1" in
  start)
	[ "$ROARD" = 'YES' ] || exit 0;
	echo -n "Starting $DESC: "
	$DAEMON --start $ROARD_OPTS
	echo "$NAME."
	;;
  stop)
	echo -n "Stopping $DESC: "
	set +e
	if [ "$PIDFILE" != '' ]
	then
	    PID=`cat $PIDFILE 2> /dev/null`
	    if [ "$PID" != '' ]
	    then
		kill -0 $PID 2> /dev/null
		if [ "$?" != '0' ]
		then
		    exit 0;
		fi
	    else
		exit 0;
	    fi
	fi
	$DAEMON --stop $ROARD_OPTS
	echo "$NAME."
	set -e
	;;
  status)
	echo -n "Status of $DESC: "
	set +e
	if [ "$PIDFILE" != '' ]
	then
	    PID=`cat $PIDFILE 2> /dev/null`
	    if [ "$PID" != '' ]
	    then
		kill -0 $PID 2> /dev/null
		if [ "$?" = '0' ]
		then
		    echo "running."
		    exit 0;
		else
		    echo "dead (stale pid file)."
		    exit 1;
		fi
	    else
		echo "not running."
		exit 3;
	    fi
	fi
	set -e
	echo "unknown (no pid file configured)."
	exit 4
	;;
  restart|force-reload)
	[ "$ROARD" = 'YES' ] || exec $0 stop
	echo -n "Restarting $DESC: "
	$DAEMON --restart $ROARD_OPTS
	echo "$NAME."
	;;
  terminate|shutdown)
	echo -n "Terminating $DESC: "
	$DAEMON --shutdown $ROARD_OPTS
	echo "$NAME."
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|terminate|shutdown|status}" >&2
	exit 1
	;;
esac

exit 0