#!/bin/sh
#
# Short:    Create Mac OS X NetInfo mounts from a text file
# Version:  2.03, 13-08-02
# Author:   Mark J Swift, msw AT blackpool.ac.uk
# Long:     This script will create Mac OS X netinfo entries for every
#           mount point specified in a given text file. The text file
#           must have a line for every mount that gives the following
#           information': machine_name,machine_ip,mountpoint
#
# 1.  Log in as root
#
# 2.  Copy this script into roots home directory
#     (/private/var/root/Documents).
#
# 3.  Start a new shell process and change directory to roots home.
#
#       cd ~/Documents
#
# 4.  Set the execute flag is set on the script, type:
#
#       chmod u+x mkmounts.sh
#
# 5.  Create a text file containing a line for every mount
#     that gives the following information':
#
#       machine_name,machine_ip,mountpoint    ...i.e:
#
#       oak,192.168.1.2,/share1
#       oak,192.168.1.2,/Volumes/STORE1/share2
#       cedar,192.168.1.3,/Volumes/STORE2/share3
#
# 6.  Save the file as "mounts.txt" in roots' home directory
#
# 7.  Execute the "mkmounts.sh" script and pass it the mounts file
#     "mounts.txt" with the following command:
#
#       ~/Documents/mkmounts.sh mounts.txt
#
# quit if wrong number of parameters
NPARAMS=$#
if [ $NPARAMS -ne 1 ]
then
  echo usage: $0 \<filename\>
  exit 0
fi
# check if mount import file exists
INFILE=$1
if ! ( test -r $INFILE )
then
  echo file not found: $INFILE
  exit 0
fi
# get the name of this workstation
node_name=`uname -n`
# --------------------------------
# debug - print host details to screen
# --------------------------------
# echo "                  node_name:$node_name"
# --------------------------------
# NetInfo: are we sharing, are we master?
# --------------------------------
ni_notshared=`niutil -rparent . | grep -c -y "[.]*no parent"`
if [ $ni_notshared -eq 1 ]
then
  ni_isshared=0
  ni_ismaster=0
  ni_host_name=$node_name
else
  ni_isshared=1
  ni_ismaster=`niutil -rparent . | grep -c -y "^$node_name[]*/[]*"`
  ni_host_name=`niutil -rparent . | cut -d/ -f1 | cut -d. -f1 `
fi
if [ $ni_isshared -eq 0 -o $ni_ismaster -eq 1 ]
then
  ni_canmodify=1
else
  ni_canmodify=0
fi
# --------------------------------
# debug - print host NetInfo details to screen
# --------------------------------
# echo "               ni_is_shared:$ni_isshared"
# echo "               ni_is_master:$ni_ismaster"
# echo "               ni_canmodify:$ni_canmodify"
# echo "               ni_host_name:$ni_host_name"
if [ $ni_canmodify -eq 0 ]
then
  echo "ERROR: This script must be run on the NetInfo Master server, $ni_host."
else
  # --------------------------------
  # read from file, line-by-line
  # --------------------------------
  line_count=0
  tr -s "\015" "\012" < "$1" | while read whole_line
  do
    line_count=`expr $line_count + 1`
    # --------------------------------
    # get mount details from file
    # --------------------------------
    # strip extra spaces
    whole_line=`echo "$whole_line" | tr -s "\040"`
    # extract (lower case) machine name
    machine_name=`echo $whole_line | tr [A-Z] [a-z] | cut -d, -f1`
    whole_line=`echo $whole_line | cut -d, -s -f2-`
    # extract ip address
    machine_ip=`echo $whole_line | tr [A-Z] [a-z] | cut -d, -f1`
    whole_line=`echo $whole_line | cut -d, -s -f2-`
    # debug - print machine details to screen
    # echo "machine name: $machine_name"
    # echo "  machine ip: $machine_ip"
    while [ "$whole_line" ]; do
      mount_point=`echo $whole_line | cut -d, -f1`
      whole_line=`echo $whole_line | cut -d, -s -f2-`
      # deduce a share point from the mount
      temp=$mount_point
      while [ "$temp" ]; do
        share_point=`echo $temp | cut -d/ -f1`
        temp=`echo $temp | cut -d/ -s -f2-`
      done
      # debug - print user details to screen
      # echo "mount point : $mount_point"
      # echo "share point : $share_point"
      # --------------------------------
      # create mounts NETINFO details
      # --------------------------------
      # does the mount already exist
      count=`nireport / /mounts name | grep -c -y "^$machine_name:$mount_point\b"`
      if [ $count -eq 0 ]
      then
        # mount point doesn't yet exist
        echo "                           : Creating mount $machine_name:$mount_point"
        # its difficult to create directory containing "/" char
        while [ `niutil 2>&1 -create / /mounts/new_directory | grep -y -c " *Permission denied"` -ne 0 ]; do
        sleep 2 ; done
        # ...so do it in two stages
        while [ `niutil 2>&1 -createprop / /mounts/new_directory name "$machine_name:$mount_point" | grep -y -c " *Permission denied"` -ne 0 ]; do
        sleep 2 ; done
      else
        # Everything is fine, mount already exists
        echo "                           : Updating mount $machine_name:$mount_point"
      fi
      # get netinfo directory id for mount
      ni_dirid=`nigrep "$machine_name:$mount_point$" / /mounts | cut -d ' ' -f1`
      # create/overwrite vfstype property
      while [ `niutil 2>&1 -createprop  / $ni_dirid vfstype url | grep -y -c " *Permission denied"` -ne 0 ]; do
      sleep 2 ; done
      # create/overwrite dir property
      while [ `niutil 2>&1 -createprop  / $ni_dirid dir "/Network/Servers" | grep -y -c " *Permission denied"` -ne 0 ]; do
      sleep 2 ; done
      # create/overwrite opts property
      while [ `niutil 2>&1 -createprop  / $ni_dirid opts net | grep -y -c " *Permission denied"` -ne 0 ]; do
      sleep 2 ; done
      # append to opts property
      while [ `niutil 2>&1 -appendprop  / $ni_dirid opts "url==afp://;AUTH=NO%20USER%20AUTHENT@$machine_ip/$share_point" | grep -y -c " *Permission denied"` -ne 0 ]; do
      sleep 2 ; done
    done
  done
fi