drbl 2.6.15-1 / usr / sbin / drbl-useradd

#!/bin/bash
# Author: Blake, Kuo-Lien Huang
# License: GPL
# Description:
#   * creat and delete accounts for DRBL, actually it for NIS (YP).
#
# Modified by Steven Shiau <steven@nchc.org.tw> to used in DRBL for Redhat

# Load DRBL setting and functions
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"
. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions

#
USAGE() {
  echo "Usage: "
  echo "Option 1:"
  echo "$0 [-s|--single] <username> <groupname>"
  echo "  generate a single user <username> with group <groupname>"
  echo "Option 2:"
  echo "$0 [-r|--range] <prefix> <start> <end> <groupname> [<passwd_opt>]"
  echo "  generate a range of users from <prefix><start> to <prefix><end> with group <groupname>,"
  echo "  passwd_opt:"
  echo "  If one digit, it's the length of randomly created password."
  echo "  If blank, it will be randomly generated with some (say:8) characters."
  echo "  Other setting is the password itself."
  echo "Option 3:"
  echo "$0 [-f|--file] <filename>"
  echo "  generate users that are listed in <filename>."
  echo "  the username/password pairs are listed in $useradd_gen"
  echo 
  echo "  the format of the file <filename>: PREFIX START END GROUPNAME PASSWD_OPT"
  echo "  passwd_opt:"
  echo "  If one digit, it's the length of randomly created password."
  echo "  If blank, it will be randomly generated with some (say:8) characters."
  echo "  Other setting is the password itself."
  echo "  for example: "
  echo "  # account for student"
  echo "  s		89101	89129  g3c9   8"
  echo "  # account for teacher"
  echo "  tckps	01	99   teacher  drblnice"
  echo "Option 4:"
  echo "$0 [-l|--list] <filename>"
  echo "  generate users that are listed in <filename>."
  echo "  the username/password pairs are listed in $useradd_gen"
  echo 
  echo "  the format of the file <filename>: ID GROUPNAME PASSWD_OPT"
  echo "  passwd_opt:"
  echo "  If one digit, it's the length of randomly created password."
  echo "  If blank, it will be randomly generated with some (say:8) characters."
  echo "  Other setting is the password itself."
  echo "  for example: "
  echo "  # account for student001"
  echo "  student001 g3c9 8"
  echo "  # account for student002"
  echo "  student002 g3c9 drblnice"
}


# 
check_if_root

# Parse command-line options
while [ $# -gt 0 ]; do
  case "$1" in
    -s|--single)
		format="single"
		shift; username=$1
		shift; groupname=$1
		shift;;
    -r|--range)
		format="range"
		shift; prefix=$1
		shift; start=$1
		shift; end=$1
		shift; groupname=$1
		shift
                if [ -z "$(echo $1 |grep ^-.)" ]; then
                  # skip the -xx option, in case 
                  passwd_opt=$1
                fi
		shift ;;
    -f|--file)  
		format="file"
		shift; filename=$1
		shift ;;
    -l|--list)  
		format="list"
		shift; filename=$1
		shift ;;
    -*)		echo "${0}: ${1}: invalid option" >&2
		USAGE
		exit 2 ;;
    *)		break ;;
  esac
done

# check if groupname is not valid one
if `echo "$groupname" | grep -q "^[0-9]"`; then
   echo "groupname can NOT begin with digits (0-9)!"
   echo "The one you specified is \"$groupname\""
   echo "Program terminated"
   exit 1
fi 

#
case "$format" in
  single)
        [ -z "$username" ] && echo "No username! Program terminated!" && exit 1
        [ -z "$groupname" ] && echo "No groupname! Program terminated!" && exit 1
        ;;
  range)
        [ -z "$prefix" ] && echo "No prefix! Program terminated!" && exit 1
        [ -z "$start" ] && echo "No start! Program terminated!" && exit 1
        [ -z "$end" ] && echo "No end! Program terminated!" && exit 1
        [ -z "$groupname" ] && echo "No groupname! Program terminated!" && exit 1
        ;;
  file)
        [ -z "$filename" ] && echo "No filename! Program terminated!" && exit 1
        ;;
  list)
        [ -z "$filename" ] && echo "No filename! Program terminated!" && exit 1
        ;;
  *)
        USAGE
        exit 1
        ;;
         
esac

# check the necessary files
file_to_be_checked="$useradd_range_exec_file $userdel_range_exec_file $useradd_file_exec_file $userdel_file_exec_file $useradd_list_exec_file $userdel_list_exec_file" 

for ifile in $file_to_be_checked; do 
  if ! type "$ifile" &>/dev/null; then
    echo "No $ifile file!"
    exit 1
  fi
done

#
useradd_gen_tmp="$(mktemp /tmp/useradd.XXXXXX)"

# file to store the username and password, clean it first.
[ -f "$useradd_gen" ] && rm -f $useradd_gen

# add/delete single user
case "$format" in
   single)
      # add single users
      echo "Password of $username ? (It will not be echoed in the screen. If you want to use random password, just press Enter)"
      read -s passwd_single1
      if [ -z "$passwd_single1" ]; then
        make_random_password
        passwd_single1=$random_password
      else
        echo "Retype password of $username: (It will not be echoed in the screen)"
        read -s passwd_single2
        while [ "$passwd_single1" != "$passwd_single2" ]; do
          echo "Sorry, passwords do not match"
          echo "Password of $username ? (It will not be echoed in the screen. If you want to use random password, just press Enter)"
          read -s passwd_single1
          echo "Retype password of $username: (It will not be echoed in the screen)"
          read -s passwd_single2
        done
      fi
      echo "The password of $username is \"$passwd_single1\"" >> $useradd_gen_tmp
      run_cmd="/usr/sbin/groupadd $groupname; /usr/sbin/useradd -m $username -g $groupname; echo \"$username:$passwd_single1\" | /usr/sbin/chpasswd"
      ;;

   range)
      # add a range of users
      run_cmd="$useradd_range_exec_file $prefix $start $end $groupname $passwd_opt"
      ;;

   file)
      # add users which are listed in file
      run_cmd="$useradd_file_exec_file $filename"
      ;;
   list)
      # add users which are listed line by line in file
      run_cmd="$useradd_list_exec_file $filename"
      ;;

esac

echo "Creating..."
eval "$run_cmd | tee -a $useradd_gen_tmp"

# filter those we do not want... just output the password and username
grep "The password of" $useradd_gen_tmp > $useradd_gen
chmod 600 $useradd_gen
chown root.root $useradd_gen

#
if [ -e /etc/debian_version ]; then
  tune-debian-dev-group-perm -g "$desktop_user_group_debian" -e -r
fi
#
echo "Now update the NIS data in /var/yp ..."
make -C /var/yp/
echo
#
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo "***********************************************************"
echo "The username/password pairs are listed in \"$useradd_gen\"."
echo "***********************************************************"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL

[ -f "$useradd_gen_tmp" ]  && rm -f $useradd_gen_tmp

echo "Done."
exit 0