XMLOps/Remove-OrphanAllowedSignersAndCiSigners_IDBased.psm1
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Function Remove-OrphanAllowedSignersAndCiSigners_IDBased { <# .SYNOPSIS Removes elements with invalid SignerIds from the CiSigners and AllowedSigners nodes in a CI policy XML file These are elements with SignerIds that are not found in any <Signer> in the <Signers> node .PARAMETER Path The path to the CI policy XML file .INPUTS System.IO.FileInfo .OUTPUTS System.Void #> [CmdletBinding()] [OutputType([System.Void])] param ( [Parameter(Mandatory = $true)][System.IO.FileInfo]$Path ) Begin { . "$([WDACConfig.GlobalVars]::ModuleRootPath)\CoreExt\PSDefaultParameterValues.ps1" # Load the XML file [System.Xml.XmlDocument]$Xml = Get-Content -Path $Path # Create an XmlNamespaceManager for namespace resolution [System.Xml.XmlNamespaceManager]$NsManager = New-Object System.Xml.XmlNamespaceManager -ArgumentList $Xml.NameTable $NsManager.AddNamespace('ns', 'urn:schemas-microsoft-com:sipolicy') # Get the list of valid signer IDs from the Signers node [System.String[]]$ValidSignerIds = foreach ($Item in ($Xml.SelectNodes('//ns:Signers/ns:Signer', $NsManager))) { $Item.ID } Function Remove-InvalidSignerIds { <# .SYNOPSIS Removes nodes with invalid SignerIds from the given XmlNodeList .INPUTS System.Xml.XmlNodeList .OUTPUTS System.Void .PARAMETER NodeList The XmlNodeList to remove invalid SignerIds from #> Param ( [Parameter(Mandatory = $true)][System.Xml.XmlNodeList]$NodeList ) foreach ($Node in $NodeList) { if ($ValidSignerIds -notcontains $Node.SignerId) { [System.Void]$Node.ParentNode.RemoveChild($Node) } } } } Process { # Get CiSigners and AllowedSigners nodes [System.Xml.XmlNodeList]$CiSigners = $Xml.SelectNodes('//ns:CiSigners/ns:CiSigner', $NsManager) [System.Xml.XmlNodeList]$AllowedSigners12 = $Xml.SelectNodes('//ns:SigningScenarios/ns:SigningScenario[@Value="12"]/ns:ProductSigners/ns:AllowedSigners/ns:AllowedSigner', $NsManager) [System.Xml.XmlNodeList]$AllowedSigners131 = $Xml.SelectNodes('//ns:SigningScenarios/ns:SigningScenario[@Value="131"]/ns:ProductSigners/ns:AllowedSigners/ns:AllowedSigner', $NsManager) # Remove invalid signer IDs from CiSigners and AllowedSigners Remove-InvalidSignerIds $CiSigners Remove-InvalidSignerIds $AllowedSigners12 Remove-InvalidSignerIds $AllowedSigners131 } End { # Save the changes to the XML file $Xml.Save($Path) } } Export-ModuleMember -Function 'Remove-OrphanAllowedSignersAndCiSigners_IDBased' |