#!/bin/sh
### BEGIN INIT INFO
# Provides:          shellinabox
# Required-Start:    $network $remote_fs
# Required-Stop:     $network $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Shell In A Box Daemon
# Description:       Daemon for publishing a login shell at
#                    http://localhost:4200
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DESC="Shell In A Box Daemon"
NAME="shellinabox"
DAEMON="/usr/bin/shellinaboxd"
PIDFILE="/var/run/shellinaboxd.pid"
SCRIPTNAME=/etc/init.d/$NAME

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

. /lib/lsb/init-functions

# Include shellinabox defaults if available.
test -f /etc/default/shellinabox && . /etc/default/shellinabox

# Set some default values
SHELLINABOX_DATADIR="${SHELLINABOX_DATADIR:-/var/lib/shellinabox}"
SHELLINABOX_PORT="${SHELLINABOX_PORT:-4200}"
SHELLINABOX_USER="${SHELLINABOX_USER:-shellinabox}"
SHELLINABOX_GROUP="${SHELLINABOX_GROUP:-shellinabox}"

#
#       Function that starts the daemon/service.
#
d_start() {
  if [ -z "$SHELLINABOX_DAEMON_START" -o                                      \
          "$SHELLINABOX_DAEMON_START" = "0" ]; then
    return 0
  fi

  start-stop-daemon --start --oknodo --pidfile "$PIDFILE"                     \
                    --exec "$DAEMON" -- -q --background="$PIDFILE"            \
                    -c "${SHELLINABOX_DATADIR}" -p "${SHELLINABOX_PORT}"      \
                    -u "${SHELLINABOX_USER}" -g "${SHELLINABOX_GROUP}"        \
                    ${SHELLINABOX_ARGS}
}

#
#       Function that stops the daemon/service.
#
d_stop() {
  start-stop-daemon --stop --oknodo --pidfile "$PIDFILE"
  rm -f "$PIDFILE"
}

#
#       Function that reloads the config file for the daemon/service.
#
d_reload() {
  # Only reload if there are no active sessions running
  [ -r "$PIDFILE" ] &&
    [ `ps o pid= --ppid "\`cat "$PIDFILE"\`\`ps o pid= --ppid \
                                                \\\`cat "$PIDFILE"\\\`|
                                             xargs -r -n 1 printf ',%s'\`" |
       wc -l` -gt 1 ] &&
    return 1

  d_stop
  d_start
}

#
#       Function that check the status of the daemon/service.
#
d_status() {
  [ -r "$PIDFILE" && kill -0 `cat "$PIDFILE"` ] &&
    echo "$DESC is running" || echo "$DESC is not running"
}

case "$1" in
    start)
        log_daemon_msg "Starting $DESC" "$NAME"
        d_start
        log_end_msg $?
        ;;
    stop)
        log_daemon_msg "Stopping $DESC" "$NAME"
        d_stop
        log_end_msg $?
        ;;
    reload)
        log_daemon_msg "Reloading services for $DESC" "$NAME"
        d_reload
        log_end_msg $?
        ;;
    restart|force-reload)
        log_daemon_msg "Restarting $DESC" "$NAME"
        d_stop
        d_start
        log_end_msg $?
        ;;
    status)
        d_status
	;;
    *)
        echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|reload}" >&2
        exit 1
        ;;
esac

exit 0