Script Repository


Check whether email and username are unique

February 23, 2021
2653

The script checks whether the email address and username specified for a new user are unique. If either the username or the email address are not unique, new user creation will be cancelled. To use the script with Adaxes, create a business rule triggered before creating a user. For details, see Validate/Modify User Input Using a Script.

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PowerShell
# Build search filter
$filter = "(&(sAMAccountType=805306368)(|(sAMAccountName=%username%)"
if (-not([System.String]::IsNullOrEmpty("%mail%")))
{
    $filter += "(mail=%mail%)"
}
$filter += "))"

# Search for users with the username or email address specified
$searcher = $Context.BindToObject("Adaxes://rootDSE")
$searcher.SearchFilter = $filter
$searcher.SearchScope = "ADS_SCOPE_SUBTREE"
$searcher.PageSize = 500
$searcher.ReferralChasing = "ADS_CHASE_REFERRALS_NEVER"
$searcher.VirtualRoot = $True
$searcher.SizeLimit = 1

try
{
    $searchResultIterator = $searcher.ExecuteSearch()
    $searchResults = $searchResultIterator.FetchAll()
    
    if ($searchResults.Length -ne 0)
    {
        $Context.Cancel("A user with the same username or email address already exists")
        return
    }
}
finally
{
    # Release resources
    $searchResultIterator.Dispose()
}

Comments ( 2 )
avatar
Ray Bilyk
Apr 02, 2021
Is there a way to get an email if the new user creation is cancelled due to lack of uniqueness?
avatar
Support
Apr 02, 2021
Hello Ray,

Yes, it is possible. You can use the $Context.SendMail method right after the following line in the script:

$Context.Cancel("A user with the same username or email address already exists")

Should you have any issues updating the script to meet your needs, please, describe the desired behavior in all the possible details with live examples.
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