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/*
   SamUpgradeTask.js
   (c) 2007, Microsoft Corp.
*/
 
// Check the version of the operating system. Stop the script if the version is earlier than 6.
if ( ! CheckOSVersion() )
{
    WScript.Echo("ERROR: This script will only work on Longhorn Server or above.");
    WScript.Quit(1);
}
 
// Retrieve the local computer's rootDSE LDAP object.
var localRootDse = null;
 
try
{
    localRootDse = GetObject("LDAP://localhost/rootDSE");
}
catch(e)
{
    WScript.Echo("There was an error attempting to retrieve the localhost RootDSE object.");
    WScript.Echo("Perhaps this machine is not a Domain Controller on the network?");
    WScript.Echo("ErrorCode: " + e.number);
    WScript.Quit(1);
}
 
// Retrieve several rootDSE properties
var dnsHostName = localRootDse.Get("dnsHostName");
var dsServiceName = localRootDse.Get("dsServiceName");
var defaultNamingContext = localRootDse.Get("defaultNamingContext");
 
// Open the default naming context
var ncObj = GetObject("LDAP://" + defaultNamingContext);
 
// Get the "FSMO Role Owner"
var strfsmoNtdsa = ncObj.FsmoRoleOwner;
var fsmoNtdsaObj = GetObject("LDAP://" + strfsmoNtdsa);
 
// Get the parent object of "FSMO Role Owner"
var fsmoServerObj = GetObject(fsmoNtdsaObj.Parent);
 
// By using the Server Reference, retrieve the name of the PDC computer
var strFsmoComputer = fsmoServerObj.ServerReference;
var fsmoComputerObj = GetObject("LDAP://" + strFsmoComputer);
var pdcName = fsmoComputerObj.Get("name");
 
// Get the RootDSE object for the PDC
var pdcRootDse = GetObject("LDAP://" + pdcName + "/rootDSE");
 
// Check whether the PDC is a legacy domain or not.
var domainControllerFunctionality = pdcRootDse.Get("domainControllerFunctionality");
 
if ( domainControllerFunctionality > 2 )
{
    WScript.Echo("Domain is already operating in a mode higher than Windows Server 2003 mode. Stopping script execution.");
    WScript.Quit(0);
}
 
// Get the default naming context for the PDC
var pdcDefaultNamingContext = pdcRootDse.Get("defaultNamingContext");
 
// Retrieve the well known object from the PDC
var pdcSystem = GetObject("LDAP://" + pdcName + "/<WKGUID=AB1D30F3768811D1ADED00C04FD8D5CD," + pdcDefaultNamingContext + ">");
 
// Get the distinguished name for the well known object
var pdcDistinguishedName = pdcSystem.Get("distinguishedName");
 
// Check whether the task has already been run
var taskMarker = null;
 
try
{
    taskMarker = GetObject("LDAP://" + pdcName + "/<WKGUID=6ACDD74F3F314ae396F62BBE6B2DB961,CN=Server," + pdcDistinguishedName + ">");
}
catch(e)
{
    if ( e.number == -2147016656 ) // Check and see if error code is ERROR_DS_NO_SUCH_OBJECT
    {
        taskMarker = null;
    }
    else
    {
        WScript.Echo("Error attempting to retrieve well known object from PDC.");
        WScript.Echo("Name: " + e.name + "\nDescription: " + e.description + "\nCode: " + e.number + "\nMessage: " + e.message);
        WScript.Quit(1);
    }
}
 
// If the well known object exists, the SAM upgrade is already running. Therefore, stop the script.
if ( taskMarker != null )
{
    WScript.Echo("SAM upgrade task already being run. No work done.");
    WScript.Quit(1);
}
 
// Get the Server container with that distinguished name
var serverObj = GetObject("LDAP://" + pdcName + "/CN=Server," + pdcDistinguishedName);
 
// Prepare a safe array (for example, VBArray) with one entry
var jsArray = new Array(1);
jsArray[0] = "B:32:6ACDD74F3F314ae396F62BBE6B2DB961:"+ dsServiceName;
var vbArray = JS2VBArray(jsArray);
 
try
{
    // Append an entry to the "Other-Well-Known-Objects" attribute for the 
    // previous server object.
    serverObj.PutEx(3, "otherWellKnownObjects", vbArray);
    serverObj.SetInfo();
}
catch(e)
{
    WScript.Echo("Unexpected error attempting to put the well known GUID.");
    WScript.Echo("ErrorCode: " + e.number);
}
 
WScript.Echo("Running upgrade task.");
// Set the "runSamUpgradeTasks" attribute in the local rootDSE
localRootDse.Put("runSamUpgradeTasks", 1);
localRootDse.SetInfo();
 
// Remote the binary data from the previous well known object entry 
serverObj.PutEx(4, "otherWellKnownObjects", vbArray);
serverObj.SetInfo();
 
// The upgrade is complete.
WScript.Echo("Done!");
 
function CheckOSVersion()
{
    var wbemFlagReturnImmediately = 0x10;
    var wbemFlagForwardOnly = 0x20;
 
    var objWMIService = GetObject("winmgmts:\\\\.\\root\\CIMV2");
    var colItems = objWMIService.ExecQuery("SELECT * FROM Win32_OperatingSystem", "WQL",
                                      wbemFlagReturnImmediately | wbemFlagForwardOnly);
 
    var enumItems = new Enumerator(colItems);
    for (; !enumItems.atEnd(); enumItems.moveNext()) {
        var objItem = enumItems.item();
        var fullVersion = objItem.Version;
        var indexPoint = fullVersion.indexOf(".");
 
        if ( indexPoint == -1 )
        {
            return false;
        }
 
        var majorVersion = fullVersion.substring(0, indexPoint);
 
        return (majorVersion >= "6");
    }
 
    return false;
}
 
function JS2VBArray( objJSArray )
{
    var dictionary = new ActiveXObject( "Scripting.Dictionary" );
    for ( var i = 0; i < objJSArray.length; i++ )
    {
        dictionary.add( i, objJSArray[ i ] );
    }
 
    return dictionary.Items();
}