crushftpinit

#!/bin/sh
#
# Control script for CrushFTP
#
# chkconfig: - 86 14
# description: CrushFTP
#
### BEGIN INIT INFO
# Provides:          crushftp_init.sh
# Required-Start:    $local_fs
# Should-Start:      $network
# Required-Stop:
# Should-Stop:       $network
# Default-Start:     2 3 5
# Default-Stop:      2 5
# Short-Description: CrushFTP Server
# Description:       Starts Crush on boot
### END INIT INFO
# THESE NEED TO BE SET
CRUSH_DIR="/var/opt/CrushFTP7_PC/" #crushftp directory
USER="root" # only work for this user
JAVA="java"
PS="ps"
AWK="awk"
GREP="grep"
WHOAMI="whoami"
NOHUP="nohup"
LC_ALL=en_US.UTF-8
export LC_ALL=en_US.utf8

# example of how to redirect a low port to a high port so Crush doesn't have to run as root
# iptables -t nat -A PREROUTING -p tcp -m tcp --dport 21 -j REDIRECT --to-ports 2121

# We MUST start the server in the proper directory. If we can not change to that directory, we exit.
change_dir()
{
 cd $CRUSH_DIR
 ret_val=$?
 if [ ${ret_val} -ne 0 ]; then
   echo FAIL
   echo could not change to CrushFTP directory
   echo the directory is setup as:
   echo $CRUSH_DIR
   exit 1
 fi
}

# get PID from process list.  Not from a 'stored' file.  Since Crush updates will
# restart the server, but NEVER run this script, then if we stored off the PID into
# a file, then after an update, this script would not be able to shut down the
# process.  We have added a couple greps into the get_pid() so that we 'know' we
# are getting the proper PID if it exists.
get_pid()
{
 CRUSH_PID="`$PS -ef | $GREP java | $GREP $CRUSH_DIR | awk '{print $2}'`"
 CRUSH_PARENT="`$PS -ef | $GREP java | $GREP $CRUSH_DIR | awk '{print $3}'`"
}

# if the wrong user runs this script then BAIL.  If this script should be run as user
# OTHER than 'root' (or su or sudo), then you must redirect port 21 (or 22) up to a higher
# port, such as 60021.  iptables can do this well.  Then setup the crush server to bind to
# these higher ports.  Running as non-root is much more secure.  NOTE, it 'is' valid for root
# to shut down the server (but not to start it, unless USER="root" is set at teh top of the file
ROOT_OK=0
chk_user()
{
  if [ "$USER" != `whoami` ]; then
    if [ `whoami` = "root" -a "$ROOT_OK" = "1" ]; then
# Not an error.  Root user is OK here, even if 'not' the proper user (such as killing the process).
       echo
    else
       #echo FAIL
       echo "Wrong user.  The user running this script MUST be $USER, but you are `whoami`"
       #exit 1;
    fi
  fi
}

#############################################################################################
# Here is the 'main' script.  We can either start the server, or shutdown the current       #
# running server.   There is error checking to make sure the proper user is being used.     #
#############################################################################################
case "$1" in
        start)
             chk_user
             get_pid
             if [ "$CRUSH_PID" ]; then
               echo FAIL
               echo Found an already running instance of CrushFTP.
               echo It is not valid o start 2 sessions in the same directory.
               exit 1;
             fi
             echo -n "Starting CrushFTP... "
             change_dir

             # run daemon
             #$NOHUP $JAVA -Ddir=$CRUSH_DIR -Xmx384M -jar CrushFTP.jar -d & >/dev/null 2>&1
             $NOHUP $JAVA -Ddir=$CRUSH_DIR -Xmx384M -jar plugins/lib/CrushFTPJarProxy.jar -d & >/dev/null 2>&1
             echo OK
        ;;

         stop)
             # root or $USER is ok to shut down the server.
             ROOT_OK=1
             chk_user
             get_pid
             if [ ! "$CRUSH_PID" ]; then
               echo FAIL
               echo Could not find Crush PID
               exit 1
             fi

             echo -n Shutting down CrushFTP...
             kill $CRUSH_PID
             ret_val=$?
             if [ ${ret_val} -ne 0 ]; then
                echo FAIL
                echo could not kill PID
                exit 1
             fi
             echo OK
        ;;

        status)
             get_pid
             if [ ! "$CRUSH_PID" ]; then
               echo stopped
               exit 3
             else
               if [ "$CRUSH_PARENT" = "1" ]; then
                 echo "running as daemon (pid $CRUSH_PID)"
               else
                 echo "running as user (pid $CRUSH_PID)"
               fi
             fi
        ;;

        *)
             echo "Usage: $0 [start|stop]   NOTE you must be logged in as $USER to run this script"
esac

exit 0