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Script Repository

Generate a unique 6-digit value for AD property

February 25, 2021 Views: 961

The script generates a unique 6-digit value for the specified Active Directory property. To run the script, create a custom command, business rule or scheduled task configured for the User object type.

Parameters

  • $propertyName - Specifies the LDAP name of the AD property that stores the 6-digit values and where the new unique value will be saved for the user.
  • $maxNumber - Specified the maximum allowed property value.
Edit Remove
PowerShell
$propertyName = "pager" # TODO: modify me
$maxNumber = 999999 # TODO: modify me

# Get all existing values
$searcher = $Context.BindToObject("Adaxes://rootDSE")
$searcher.SearchFilter = "(&(sAMAccountType=805306368)($propertyName=*))"
$searcher.SearchScope = "ADS_SCOPE_SUBTREE"
$searcher.PageSize = 500
$searcher.ReferralChasing = "ADS_CHASE_REFERRALS_NEVER"
$searcher.VirtualRoot = $True

try
{
    $searchResultIterator = $searcher.ExecuteSearch()
    $searchResults = $searchResultIterator.FetchAll()
}
finally
{
    # Release resources
    if ($searchResultIterator){ $searchResultIterator.Dispose() }
}


$valuesFromAD = New-Object "System.Collections.Generic.HashSet[System.String]"
foreach ($searchResult in $searchResults)
{
    [void]$valuesFromAD.Add($searchResult.Properties[$propertyName].Value)
}

# Generate new value
$usedValues = New-Object "System.Collections.Generic.HashSet[System.String]"
do
{
    $number = Get-Random -Minimum 0 -Maximum $maxNumber
    $uniqueValue = [System.String]::Format("{0:000000}", $number)
    [void]$usedValues.Add($uniqueValue)
    
    if ($usedValues.Count -eq $maxNumber)
    {
        $Context.LogMessage("All possible values are already in use.", "Warning")
        return
    }
}
while ( $valuesFromAD.Contains($uniqueValue))

# Update user
$Context.TargetObject.Put($propertyName, $uniqueValue)
$Context.TargetObject.SetInfo()
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