#!/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:SHELLINABOX_PORT
#		     where default port number is 4200. 
### END INIT INFO

# Authors: Markus Gutschke <markus@shellinabox.com>, Marc Singer <elf@buici.com>

# PATH should only include /usr/* if it runs after the mountnfs.sh script
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

# Exit if the package is not installed
[ -x $DAEMON ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

# 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}"

# Export SO file names
export SHELLINABOX_LIBCRYPTO_SO="${SHELLINABOX_LIBCRYPTO_SO:-libcrypto.so}"
export SHELLINABOX_LIBSSL_SO="${SHELLINABOX_LIBSSL_SO:-libssl.so}"

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

  eval start-stop-daemon --start --oknodo --pidfile "'$PIDFILE'"              \
                    --exec "'$DAEMON'" -- -q --background="'$PIDFILE'"        \
                    -c "'${SHELLINABOX_DATADIR}'" -p "'${SHELLINABOX_PORT}'"  \
                    -u "'${SHELLINABOX_USER}'" -g "'${SHELLINABOX_GROUP}'"    \
                    $(for i in $(ls /etc/shellinabox/options-enabled/*.css |
                                 sed -e                                       \
                                    's/.*[/]\([0-9]*\)[-_+][^/:,;]*[.]css/\1/'|
                                 sort -u); do
                        for j in /etc/shellinabox/options-enabled/"$i"*.css; do
                          echo -n "$j" |
                          sed -e 's/\(.*[/]\)\([0-9]*\)\([-_+]\)\([^/:,;]*\)[.]css/\4:\3\1\2\3\4.css,/
                                  s/:_/:-/'
                        done |
                        sed -e 's/,$/;/'
                      done |
                      sed -e 's/;$//
                              //b
                              s/.*/--user-css "\0"/')                         \
                    "${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 "$1" in
    start)
        [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
        d_start
        case "$?" in
	    0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    2)   [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
        ;;
    stop)
        [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
        d_stop
        case "$?" in
	    0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    2)   [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
        ;;
    reload)
        [ "$VERBOSE" != no ] && log_daemon_msg "Reloading services for $DESC" "$NAME"
        d_reload
        case "$?" in
	    0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    2)   [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
        ;;
    restart|force-reload)
        [ "$VERBOSE" != no ] && log_daemon_msg "Restarting $DESC" "$NAME"
        d_stop
        d_start
        case "$?" in
	    0) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
	    1) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	    *) [ "$VERBOSE" != no ] && log_end_msg 1 ;; # Failed to start
	esac
        ;;
    status)
        d_status
        ;;
    *)
        echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|reload}" >&2
        exit 1
        ;;
esac

exit 0