Private/Test-IsValidGUID.ps1
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function Test-IsValidGUID { <# .SYNOPSIS Validates if the input string is a valid Global Unique Identifier (GUID). .DESCRIPTION This cmdlet checks if the provided input string adheres to the structure of a valid GUID in Active Directory. It is designed as a diagnostic tool to facilitate input validation for scripts and functions that manipulate Active Directory objects. .PARAMETER ObjectDN The distinguished name to validate. This parameter accepts a string representing the DN of an Active Directory object. .EXAMPLE Test-IsValidGUID -ObjectDN 'CN=Darth Vader,OU=Users,DC=EguibarIT,DC=local' Returns $true if the input string is a valid DN, $false otherwise. .NOTES https://pscustomobject.github.io/powershell/howto/identity%20management/PowerShell-Check-If-String-Is-A-DN/ Version: 1.1 DateModified: 09/Feb/2024 LasModifiedBy: Vicente Rodriguez Eguibar vicente@eguibar.com Eguibar Information Technology S.L. http://www.eguibarit.com #> [CmdletBinding(ConfirmImpact = 'Low', SupportsShouldProcess = $false)] [OutputType([bool])] param ( [Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, ValueFromRemainingArguments = $false, HelpMessage = 'String to be validated as Global Unique Identifier (GUID)', Position = 0)] [ValidateNotNullOrEmpty()] [Alias('GUID', 'GlobalUniqueIdentifier')] [string] $ObjectGUID ) Begin { ############################## # Module imports ############################## # Variables Definition $isValid = $false Write-Verbose 'Begin block: Regex pattern for GUID validation initialized.' } #end Begin Process { Try { # Perform the actual validation #$isValid = $ObjectDN -match $distinguishedNameRegex $isValid = $ObjectGUID -match $Constants.GuidRegEx # Provide verbose output if ($PSCmdlet.MyInvocation.BoundParameters['Verbose']) { Write-Verbose -Message ('GUID validation result: {0}' -f $isValid) } #end If } catch { # Handle exceptions gracefully Write-Error -Message 'Error when validating GUID' #Get-ErrorDetail -ErrorRecord $_ } #end Try-Catch } #end Process end { return $isValid } #end End } #end Function |