Ubuntu Networkmanager add: auto mount, set default printer and tunneling

From wiki.breedveld.net

This is a add for Network manager
if switching to another network, this script:
- auto mount/unmount sshfs or nfs shares
- automatically starts a tunnel (gstm)
- sets your prefered default printer

What you should do first:
- install sshfs
- publish you private key for sshfs

If you create an automatic tunnel with gstm, this script will find the config and stop/start gstm

The config file:

# /usr/local/bin/nm-applet-sript.cfg
#
# the port is only for sshfs, default this should be 22
# the domain should be the resolv.conf domain-name after switching the network
#
# domain      printer       ssh/nfs server        port shares
breedveld.net HP_Laserjet_5 nfs     phung         0    data download
capgemini.nl  mono          sshfs   breedveld.net 21   data download
agi.rws.nl    DID_OCE_Color sshfs   breedveld.net 8080 data download

The switch script:

#!/bin/bash
#
# Add for Networkmanager, for mounting, printers and tunnels
# 25-06-2009 RJB
# /usr/local/bin/nm-applet.script.sh
# link this as /etc/NetworkManager/dispatcher.d/nm-applet.script.sh
#

export CONFIG="/usr/local/bin/nm-applet-sript.cfg"
export LOGFILE="/var/log/nm-applet.log"

export IF=${1}
export COMMAND=${2}
export DISPLAY=:0.0
export SU_USER=$(who |grep tty7|awk '{print $1}')

if [ ! -z "$(ls /home/${SU_USER}/.gSTM/*gstm 2>/dev/null)" ]
then
  export TUNNEL=gstm
fi

(
  echo "Started: ${0} ${*}"
  
  export NAME=$(grep domain /etc/resolv.conf|head -1|awk '{print $NF}')
  if [ ! -z "${NAME}" ]
  then
    export PRINTER=$(grep "^${NAME}" ${CONFIG}|awk '{print $2}')
    export MTYPE=$(grep "^${NAME}" ${CONFIG}|awk '{print $3}')
    export SERVER=$(grep "^${NAME}" ${CONFIG}|awk '{print $4}')
    export PORT=$(grep "^${NAME}" ${CONFIG}|awk '{print $5}')
    export SHARES=$(grep "^${NAME}" ${CONFIG}|awk '{print $6" "$7" "$8" "$9}')
  fi
  
  function tunnel_down () 
  {
   if [ ! -z "${TUNNEL}" ]
   then
     echo "Killing ${TUNNEL} tunnel"
     /usr/bin/pkill -9 ${TUNNEL}
   fi
  }
  
  function tunnel_up () 
  {
    if [ ! -z "${TUNNEL}" ]
    then
      # su - ${SU_USER} -c "xhost +"
      echo "Starting ${TUNNEL} tunnel"
      su - ${SU_USER} -c "export DISPLAY=${DISPLAY}; nohup ${TUNNEL} &"
    fi
  }
  
  function config_printer ()
  {
    if [ ! -z "${PRINTER}" ]
    then
      echo "Switch default printer to ${PRINTER}"
      lpadmin -d ${PRINTER}
    fi
  }
  
  function mount_down ()
  {
    ps -ef|grep "mount"|egrep -v "grep|mount_"|awk '{print $2" "$NF}'|
    while read PID PRC
    do
     echo "Killing ${PID} ${PRC} ..."
     sudo kill -9 ${PID}
    done
    mount|egrep "nfs|ssh|cifs"|awk '{print $3}'|
    while read SHARE
    do
      echo "unmounting ${SHARE} ..."
      sudo umount ${SHARE}
      if mount|egrep "nfs|ssh|cifs" |grep "${SHARE}" >/dev/null 2>&1
      then
        echo "forced unmounting ${SHARE} ..."
        sudo umount -f ${SHARE}
        sudo umount -f ${SHARE}
      fi
    done
  }
  
  function mount_up ()
  {
    for SHARE in ${SHARES} 
    do
      echo "${MTYPE}-mount ${SERVER}:${PORT}/${SHARE} to /home/roland/${SHARE}"
      if [ ! -d "/home/${SU_USER}/${SHARE}" ]
      then
        su - ${SU_USER} -c mkdir /home/${SU_USER}/${SHARE} 
      fi
      if [ "${MTYPE}" = "sshfs" ]
      then
        su - ${SU_USER} -c "nohup sshfs ${SU_USER}@${SERVER}:/${SHARE} /home/${SU_USER}/${SHARE} -p ${PORT} &"
      fi
      if [ "${MTYPE}" = "nfs" ]
      then
        mount -t nfs ${SERVER}:/${SHARE} /home/${SU_USER}/${SHARE} -orw,suid
      fi
    done
  }
  
  
  case ${COMMAND} in
    "up")
        tunnel_down
        if [ "${IF}" = "eth0" -a ! -z "$(ifconfig wlan0|grep 255)" ]
        then
          mount_down
        fi
        tunnel_up
        mount_up
        config_printer
      ;;
    "down")
        tunnel_down
        mount_down
        if [ "${IF}" = "eth0" -a ! -z "$(ifconfig wlan0|grep 255)" ]
        then
          tunnel_up
          mount_up
          config_printer
        fi
      ;;
  esac

) >> ${LOGFILE} 2>&1