WDACConfig

0.3.8

XMLOps/Remove-DuplicateAllowedSignersAndCiSigners_IDBased.psm1

                                Function Remove-DuplicateAllowedSignersAndCiSigners_IDBased {

    <#

    .SYNOPSIS

        Removes duplicate SignerIds from the CiSigners and AllowedSigners nodes from each Signing Scenario in a CI policy XML file

        The criteria for removing duplicates is the SignerId attribute of the CiSigner and AllowedSigner nodes

    .PARAMETER Path

        The path to the CI policy XML file

    .INPUTS

        System.IO.FileInfo

    .OUTPUTS

        System.Void

    #>

    [CmdletBinding()]

    param (

        [Parameter(Mandatory = $true)][System.IO.FileInfo]$Path

    )

    Begin {

        # Importing the $PSDefaultParameterValues to the current session, prior to everything else

        . "$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')

        Function Remove-DuplicateSignerIds {

            <#

        .SYNOPSIS

            Removes duplicate SignerIds from the given XmlNodeList

        #>

            Param(

                [Parameter(Mandatory = $true)][System.Xml.XmlNodeList]$NodeList

            )

            [System.String[]]$UniqueSignerIds = @()

            foreach ($Node in $NodeList) {

                if ($UniqueSignerIds -notcontains $Node.SignerId) {

                    $UniqueSignerIds += $Node.SignerId

                }

                else {

                    [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 duplicate signer IDs from CiSigners and AllowedSigners

        Remove-DuplicateSignerIds $CiSigners

        Remove-DuplicateSignerIds $AllowedSigners12

        Remove-DuplicateSignerIds $AllowedSigners131

    }

    End {

        # Save the changes to the XML file

        $Xml.Save($Path)

    }

}

Export-ModuleMember -Function 'Remove-DuplicateAllowedSignersAndCiSigners_IDBased'

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