#!/bin/bash
############################################################
# Decription: list user in directory
#             
# Author: Gilles Mouchet (gilles.mouchet@gmail.com)
# Creation Date: 27-Dec-2024
# Version: 1.0
# Install: 
#   see README.md
# Usage: ./list_user.sh --help
# Changelog:
#    V1.0 - 27-Dec-2024 - GMo
#      Added
#      - Creation of script from scratch
#
############################################################ 

# debug
#set -x

# Function to print help
function printUsage {

/bin/cat << EOF

Usage: $progName [options]

Options:
  -a,--all                    Show all existing users in the directory
  -n <user_cn>,--cn=<user_cn> Show seleted user                 
  -h,--help                   Show this help
  -v,--version                Show version

Examples:
  Show all user
    $progName -a

  Show user Gilles Mouchet
    $progName --cn="Gilles Mouchet"

  Show all user with Mouchet in CN
    $progName --cn="*Mouchet*"

  Show all user with Gilles in CN
    $progName -n "Gilles*"

EOF
}

# version
version="v1.0.0"
# script name
progName="./$(/bin/basename $0)"
# read all functios
source functions.sh
# read config
readConfig

#-------------------
# MAIN
#-------------------
while test $# -gt 0
do
  case "$1" in
    -a|--all*)
      ldap_arg="objectClass=inetOrgPerson"
      shift
    ;;
    -n|--cn*)
      # --cn parameter    
      if [[ $1 =~ cn= ]]; then
          _TAG="$(echo $1 | cut -f2 -d=)"
          if [ -z "${_TAG}" ]; then
              printUsage
              exit 1
          fi
          ldap_arg="cn=$_TAG"
          shift
      # -n parameter
      else
          # check if argument from -n exist
          if [ -z "$2" ]; then
              printUsage
              exit 1
           fi 
          _TAG="$2"
          ldap_arg="cn=$_TAG"
          shift 2
          #fi
      fi
    ;;
    -h|--help|help)
      printUsage
      exit 0
    ;;
    -v|--version)
      echo "2022-$(date +Y) $progName $version"
      exit
    ;; 
    *)
      echo "${progName}: invalid option -- '$1'!"
      echo -e "Try '$progName help' for more information.\n"
      exit 1
    ;;
  esac
done
echo $ldap_arg
if [ -z "${ldap_arg}" ]; then
    printUsage
else
    #echo "ldapsearch -x -LLL -H $LDAP_SRV -b \"$LDAP_BASE\" -D \"$LDAP_MANAGER_USER\" -w $LDAP_MANAGER_PASS $ldap_arg"
    # check that the search result is not null
    result=$(ldapsearch -x -LLL -H $LDAP_SRV -b "$LDAP_BASE" -D "$LDAP_MANAGER_USER" -w $LDAP_MANAGER_PASS "$ldap_arg")
    if [ -z "${result}" ]; then
        echo "Search with $ldap_arg parameter returned no results"
    else 
       ldapsearch -x -LLL -H $LDAP_SRV -b "$LDAP_BASE" -D "$LDAP_MANAGER_USER" -w $LDAP_MANAGER_PASS "$ldap_arg"
    fi   
fi