XMLOps/Remove-UnreferencedFileRuleRefs.psm1
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function Remove-UnreferencedFileRuleRefs { <# .SYNOPSIS Removes <FileRuleRef> elements from the <FileRulesRef> node of each Signing Scenario that are not referenced by any <Allow> element in the <FileRules> node .PARAMETER xmlFilePath The path to the XML file to be modified .INPUTS System.IO.FileInfo .OUTPUTS System.Void #> [CmdletBinding()] [OutputType([System.Void])] param ( [Parameter(Mandatory = $true)][System.IO.FileInfo]$XmlFilePath ) Begin { . "$([WDACConfig.GlobalVars]::ModuleRootPath)\CoreExt\PSDefaultParameterValues.ps1" # Load the XML file [System.Xml.XmlDocument]$XmlContent = Get-Content $XmlFilePath } Process { # Define the namespace to use with the namespace manager [System.Xml.XmlNamespaceManager]$NsManager = New-Object -TypeName System.Xml.XmlNamespaceManager -ArgumentList $XmlContent.NameTable $NsManager.AddNamespace('def', 'urn:schemas-microsoft-com:sipolicy') # Find all Allow elements and store their IDs $AllowedIds = foreach ($Item in ($XmlContent.SelectNodes('//def:Allow', $NsManager))) { $Item.ID } # Find all FileRuleRef elements $fileRuleRefs = $XmlContent.SelectNodes('//def:FileRuleRef', $NsManager) foreach ($fileRuleRef in $fileRuleRefs) { # Check if the RuleID attribute is not in the list of allowed IDs if ($AllowedIds -notcontains $fileRuleRef.RuleID) { # Remove the FileRuleRef element if it's not referenced [System.Void]$fileRuleRef.ParentNode.RemoveChild($fileRuleRef) } } } End { # Save the modified XML back to the file or to a new file $XmlContent.Save($XmlFilePath) } } Export-ModuleMember -Function 'Remove-UnreferencedFileRuleRefs' |