How to provide hostname and credentials to "LDAP://"? - vbscript

Question

I need to have an Active Directory Shadow Groups (aka Active Directory Dynamic Group), based on several DN's.
I've searched high and low for a simple tool that would allow me to do this, and finally found Dan Holme's excellent script (quoted below) at http://kb.caresys.com.cn/4052785/need-script-add-all-accounts-active-directory-security-group (and a few other places)
I also found several PowerShell scripts, but they all appear to have much harder dependencies and I need a tool that's as stand-alone as possible. They also all have the same problem as I'm faced with here.
The Group_Shadow.vbs script performs exactly what I need with one exception:
I need to be able to specify the AD's Host, port number and credentials (login and password).
The script assumes that "LDAP://" is pointing to the correct AD, and I guess the AD Credentials are derived from the user running the script?
I did find a hint about how to set the host name and password, by changing the "LDAP://" string into "LDAP://LDAP_HOST:LDAP_PORT/".
That seems pretty easy to implement - but there were a few comments stating it didn't work...
I also found a hint about setting the credentials:
Dim LDAP ' As IADsOpenDSObject
Set LDAP = GetObject("LDAP:")
Set obj = LDAP.OpenDSObject("LDAP://", "domain\name", "password", ADS_USE_ENCRYPTION OR ADS_SECURE_AUTHENTICATION)
This appear to be the hard part (being totally novice in both the VBScript and Active Directory world), and I simply can't figure out how to combine to two.
I hope the community can help me out, either by assisting fixing this script or by pointing to a different solution.
Thanks in advance!
The Script:
'==========================================================================
'
' VBScript Source File -- Created with SAPIEN Technologies PrimalScript 2007
'
' NAME: Group_Shadow.vbs
'
' AUTHOR: Dan Holme , Intelliem
' DATE : 12/12/2007
'
' USAGE:
' cscript.exe Group_Shadow.vbs
'
' Dynamically updates the membership of a group
' to match the objects returned from an Active Directory query
'
' See the Windows Administration Resource Kit for documentation
'
' Neither Microsoft nor Intelliem guarantee the performance
' of scripts, scripting examples or tools.
'
' See www.intelliem.com/resourcekit for updates to this script
'
' (c) 2007 Intelliem, Inc
'==========================================================================
Option Explicit
Dim sDomainDN
Dim sGroupSAMAccountName
Dim aSearchOUs
Dim sQuery
'==========================================================================
' CONFIGURATION BLOCK
' Domain's DN
sDomainDN = "dc=domain,dc=local"
' sAMAccountName of shadow group
sGroupSAMAccountName = "Security Group"
' An array of one or more OUs to search
aSearchOUs = Array("ou=Something,dc=domain,dc=local")
' LDAP query that will be run in each OU
sQuery = " (&(objectCategory=computer)(name=GA*));distinguishedName;subtree"
'==========================================================================
' Create dictionaries
Dim dResults
Set dResults = CreateObject("Scripting.Dictionary")
dResults.CompareMode = vbTextCompare ' Case INsensitive
Dim dTargetMembership
Set dTargetMembership = CreateObject("Scripting.Dictionary")
dTargetMembership.CompareMode = vbTextCompare ' Case INsensitive
Dim dCurrentMembership
Set dCurrentMembership = CreateObject("Scripting.Dictionary")
dCurrentMembership.CompareMode = vbTextCompare ' Case INsensitive
Dim dMembershipChanges
Set dMembershipChanges = CreateObject("Scripting.Dictionary")
dMembershipChanges.CompareMode = vbTextCompare ' Case INsensitive
' Perform LDAP searches, adding to final list stored in dTargetMembership
Dim sSearchOU
Dim sLDAPQuery
For Each sSearchOU In aSearchOUs
sLDAPQuery = "<LDAP://" & sSearchOU & ">;" & sQuery
Set dResults = AD_Search_Dictionary(sLDAPQuery)
Call DictionaryAppend(dResults, dTargetMembership)
Next
' Locate group
Dim sGroupADsPath
Dim oGroup
sGroupADsPath = ADObject_Find_Generic(sGroupSAMAccountName, sDomainDN)
If sGroupADsPath = "" Then
' Error handling: group not found
WScript.Quit
End If
Set oGroup = GetObject(sGroupADsPath)
' Get members and store in dictionary
Dim aMembers
aMembers = oGroup.GetEx("member")
Set dCurrentMembership = ArrayToDictionary(aMembers)
' Calculate the "delta" between the current and desired state
Set dMembershipChanges = Dictionary_Transform(dCurrentMembership, dTargetMembership)
' Make the membership changes based on the transform dictionary's instructions
Dim sMember
For Each sMember In dMembershipChanges
If UCase(dMembershipChanges.Item(sMember)) = "ADD" Then
oGroup.Add "LDAP://" & sMember
End If
If UCase(dMembershipChanges.Item(sMember)) = "DELETE" Then
oGroup.Remove "LDAP://" & sMember
End If
Next
WScript.Quit
' ======================
' FUNCTIONS FROM LIBRARY
' ======================
' #region Dictionary routines
Function ArrayToDictionary(ByRef aArray)
' Converts a one-dimensional array into a dictionary.
' Assumes elements in array are unique
Dim dDic
Dim aElement
Set dDic = CreateObject("Scripting.Dictionary")
dDic.CompareMode = vbTextCompare ' Case INsensitive
On Error Resume Next ' trap duplicate array elements
For Each aElement In aArray
dDic.Add aElement, 0
Next
On Error GoTo 0
Set ArrayToDictionary = dDic
End Function
Sub DictionaryAppend(ByRef dNewElements, ByRef dDictionary)
' Appends the elements of dNewElements to dDictionary
Dim sKey
On Error Resume Next ' trap duplicate array elements
For Each sKey In dNewElements.keys
dDictionary.Add sKey, dNewElements.Item(sKey)
Next
On Error GoTo 0
End Sub
Function Dictionary_Transform(ByVal dOriginal, ByVal dFinal)
' Retunrs a dictionary with a list of update operations required
' so that dOriginal is transformed to dFinal
Dim dTransform, sKey
Set dTransform = CreateObject("Scripting.Dictionary")
dTransform.CompareMode = vbTextCompare ' Case INsensitive
For Each sKey In dFinal.Keys
If Not dOriginal.Exists(sKey) Then
dTransform.Add sKey, "ADD"
End If
Next
For Each sKey In dOriginal.Keys
If Not dFinal.Exists(sKey) Then
dTransform.Add sKey, "DELETE"
End If
Next
Set Dictionary_Transform = dTransform
End Function
' #endregion
' #region Active Directory object find routines
Function ADObject_Find_Generic(ByVal sObject, ByVal sSearchDN)
' Version 071130
' Takes any input (name, DN, or ADsPath) of a user, computer, or group, and
' returns the ADsPath of the object as a way of validating that the object exists
'
' INPUTS: sObject DN or ADsPath to an object
' sAMAccountName (pre-Windows 2000 logon name) of a user or group
' computer name of a computer
' sSearchDN the DN within which to search (often, the DN of the domain, e.g. dc=contoso, dc=com)
'
' RETURNS: ADObject_Find_Generic ADsPath (LDAP://...) of the object
' blank if object was not found
'
' NOTES: ASSUMPTION: computers, users & groups have unique names. See note inline.
'
' REQUIRES AD_Search_Array routine
' AD_Search_RS routine
' ADObject_Validate routine
Dim aResults, sLDAPQuery
Select Case ADObject_NameType(sObject)
Case ""
ADObject_Find_Generic = ""
Case "adspath"
ADObject_Find_Generic = ADObject_Validate(sObject)
Case "distinguishedname"
ADObject_Find_Generic = ADObject_Validate("LDAP://" & sObject)
Case "name"
' Assumption: No computer has the same name as a user's or group's sAMAccountName
' otherwise, this query will return more than one result
sLDAPQuery = "<LDAP://" & sSearchDN & ">;" & _
"(|(samAccountName=" & sObject & ")(samAccountName=" & sObject & "$));" & _
"aDSPath;subtree"
aResults = AD_Search_Array (sLDAPQuery)
If Ubound(aResults) = -1 Then
ADObject_Find_Generic = ""
Else
ADObject_Find_Generic = aResults(0)
End If
End Select
End Function
Function ADObject_NameType(ByVal sObjectName)
' Version 071204
' Evaluates sObjectName to determine what type of name it is
' Returns ADObject_NameType adspath
' distinguishedname
' name
' blank if sObjectName = ""
Dim sNameType
If Len(sObjectName) = 0 Then
sNameType = ""
ElseIf Len(sObjectName) < 3 Then
' can't be a DN or an ADsPath - must be a name
sNameType = "name"
ElseIf Ucase(Left(sObjectName,3)) = "CN=" Then
' is a DN
sNameType = "distinguishedname"
ElseIf Len(sObjectName) < 8 Then
' too short to be an ADsPath and isn't a DN, so it must be a name
sNameType = "name"
ElseIf UCase(Left(sObjectName, 7)) = "LDAP://" Then
' is already an ADsPath
sNameType = "adspath"
Else
' must be a name
sNameType = "name"
End If
ADObject_NameType = sNameType
End Function
Function ADObject_Validate(ByVal sObjectADsPath)
' Version 071122
' Returns ADsPath of object as a way of validating that the object exists
'
' INPUTS: sObjectADsPath ADsPath of object to test
' RETURNS: ADObject_Validate Path of object (if it exists) or blank
Dim oObject
On Error Resume Next
Set oObject = GetObject(sObjectADsPath)
If Err.Number <> 0 Then
ADObject_Validate = ""
Err

Answer 1

Turns out there are two answers to take note of in regard to "LDAP://" credentials.
First, specifically to the script I posted, I simply had to open my eyes!
Almost the last line of the script there were already options to add the credentials:
oConnection.Open "", vbNullString, vbNullString
Simply had to be correctly populated:
oConnection.Open "", "username", "password"
Second, a more general description was already provided by #Harvey Kwok in this SO answer: Secure LDAP object manipulation with VBscript using alternate credentials