103 lines
3 KiB
PowerShell
103 lines
3 KiB
PowerShell
using namespace System.Xml;
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$null = New-Module {
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$rootSelector = "/DefaultAssociations";
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$associationSelector = "./Association";
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<#
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.SYNOPSIS
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Generates a selector for getting the association of the specified identifier.
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.PARAMETER Identifier
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The identifier to get the association of.
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#>
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$getSelector = {
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param(
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[string] $Identifier
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)
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[string] $filter = "";
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if ($Identifier) {
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$filter = "[@Identifier='$Identifier']";
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}
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"$rootSelector/$associationSelector$filter";
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}
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<#
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.SYNOPSIS
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Gets the default app associations of the running Windows system.
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#>
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function Get-DefaultAppAssociations {
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[OutputType([xml])]
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param()
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[xml]::new().LoadXml(((DISM /Online /Get-DefaultAppAssociations) | Select-Object -Skip 6 | Select-Object -SkipLast 2 | Out-String));
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}
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<#
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.SYNOPSIS
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Sets a default app association.
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.PARAMETER Identifier
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The identifier of the association to set.
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.PARAMETER ProgId
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The ProgId to set the association to.
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.PARAMETER ApplicationName
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The ApplicationName to set the association to.
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#>
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function Set-DefaultAppAssociation {
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param(
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[string] $Identifier,
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[string] $ProgId,
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[string] $ApplicationName
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)
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[System.Xml.XmlNode] $association = $null;
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$document = Get-DefaultAppAssociations;
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$candidates = $document.SelectNodes((& $getSelector $Identifier));
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if ($candidates.Count -eq 1) {
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$association = $candidates[0];
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} else {
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$association = ([System.Xml.XmlNode]($document.SelectNodes((& $getSelector)) | Select-Object -Last 1)[0]).CloneNode($true);
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$association.Identifier = $Identifier;
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}
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$association.ProgId = $ProgId;
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$association.ApplicationName = $ApplicationName;
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Save-DefaultAppAssociations $document;
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}
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<#
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.SYNOPSIS
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Saves the default app associations.
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.PARAMETER Document
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The xml document containing the declarations of the app associations.
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#>
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function Save-DefaultAppAssociations {
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param(
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[xml] $Document
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)
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$root = $document.SelectSingleNode($rootSelector);
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$associations = $root.SelectNodes((& $getSelector));
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# Reorder associations by their Identifier
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$associations | ForEach-Object { $root.RemoveChild($_); } | Sort-Object -Property "Identifier" | ForEach-Object { $root.AppendChild($_); };
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$configFile = New-TemporaryFile;
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$writerSettings = [XmlWriterSettings]::new();
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$writerSettings.Indent = $true;
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$writerSettings.Encoding = [System.Text.UTF8Encoding]::new();
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$writer = [XmlWriter]::Create($configFile.FullName, $writerSettings);
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$document.Save($writer);
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$writer.Dispose();
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DISM /Online "/Import-DefaultAppAssociations:$($configFile.FullName)";
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Remove-Item $configFile;
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}
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}
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