#!/bin/bash
#A script to generate a LDIF file of random users and associated organizational units
#supports emitting ldif files for: Active Directory, eDirectory, OpenLDAP

################################################################################
#Change these variables as needed											   #
################################################################################
#Number of users to generate
#Valid range is from 1 to 10,000
NUMUSERS="11"

#Type of directory server to generate ldif for
#Valid types (case sensitive):
#OPENLDAP 
#ACTIVEDIRECTORY
#EDIRECTORY
DIRSERVERTYPE="OPENLDAP"

################################################################################
#!!!!!!!!!!!!!!!!!!!!DO NOT CHANGE ANYTHING BEYOND THIS LINE!!!!!!!!!!!!!!!!!!!#
################################################################################



USERCOUNTER="1"
NAMESOURCEFILE="./names.txt"
OUSOURCEFILE="./ou.txt"
OUTPUTFILE="bulkUserLoad-$DIRSERVERTYPE-$(date +%m%d%Y).ldif"

function ldifEmit-OpenLDAP()
#Code to emit an OpenLDAP compliant ldif
#Bits and bobs sourced from:
#
#
#

{

cat<<OpenLDAP >>$OUTPUTFILE
	$FIRSTNAME
	$LASTNAME
	$OU
OpenLDAP

}


function ldifEmit-ActiveDirectory()
#Code to emit an Active Directory compliant ldif
#Bits and bobs sourced from:
#
#
#

{

echo "Emitting ActiveDirectory ldif..."

cat<<ActiveDirectory >>$OUTPUTFILE
	$FIRSTNAME 
	$LASTNAME $OU
	ActiveDirectory
ActiveDirectory

}


function ldifEmit-eDirectory()
#Code to emit an eDirectory compliant ldif
#Bits and bobs sourced from:
#
#
#

{

echo "Emitting eDirectory ldif..."

cat<<eDirectory >>$OUTPUTFILE
	$FIRSTNAME $LASTNAME $OU
	eDirectory
eDirectory

}

function main()
{
#Range / value check on user supplied variables

if [ $NUMUSERS -lt 1 -o $NUMUSERS -gt 50000 ]; then
echo "Number of users not correctly specified"
echo "Valid range is from 1 to 10,000"
echo "Exiting now...."
exit 1
fi

echo "Number of user range is ok..."

if [ -z $NUMUSERS ]; then
echo "Number of users not specified."
echo "A value of 1 to 10,000 must be specififed."
echo "Exiting now...."
exit 1
fi

if [ -z $DIRSERVERTYPE ]; then
echo "Directory server type not specified."
echo "Exiting now...."
exit 1
fi

rm -f $OUTPUTFILE

cat <<RUNNING
Generating LDIF file:
Formatted for $DIRSERVERTYPE with a user count of $NUMUSERS. 
Output will be at $OUTPUTFILE
Please wait...
RUNNING

while [ $USERCOUNTER -le $NUMUSERS ]
do

	#Get a random first/last name
	NAMELINECOUNT=$(cat $NAMESOURCEFILE | wc -l)
	NAMERANDNUM1=$(cat /proc/sys/kernel/random/uuid | cut -c1-4 | od -d | head -1 | cut -d' ' -f2)
	NAMERANDNUM2=$(cat /proc/sys/kernel/random/uuid | cut -c1-4 | od -d | head -1 | cut -d' ' -f2)
	NAME1=$(expr $NAMERANDNUM1 % $NAMELINECOUNT + 1)
	NAME2=$(expr $NAMERANDNUM2 % $NAMELINECOUNT + 1)
	FIRSTNAME=$(head -$NAME1 $NAMESOURCEFILE | tail -1)
	LASTNAME=$(head -$NAME2 $NAMESOURCEFILE | tail -1)

	#Get a random OU
	OULINECOUNT=$(cat $OUSOURCEFILE | wc -l)
	OURANDNUM=$(cat /proc/sys/kernel/random/uuid | cut -c1-4 | od -d | head -1 | cut -d' ' -f2)
	OUNUM=$(expr $OURANDNUM % $OULINECOUNT + 1)
	OU=$(head -$OUNUM $OUSOURCEFILE | tail -1)


	#Emit ldif
	if [ $DIRSERVERTYPE = "OPENLDAP" ]; then
		ldifEmit-OpenLDAP $FIRSTNAME $LASTNAME $OU
	elif [ $DIRSERVERTYPE = "ACTIVEDIRECTORY" ]; then
		ldifEmit-ActiveDirectory $FIRSTNAME $LASTNAME $OU
	elif [ $DIRSERVERTYPE = "EDIRECTORY" ]; then
		ldifEmit-eDirectory $FIRSTNAME $LASTNAME $OU
	fi

	#Increment counter
	USERCOUNTER=$(( $USERCOUNTER + 1 ))
done

}

#Kick it all off
main