Private/Get-UpdateFeed.ps1
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Function Get-UpdateFeed { <# .SYNOPSIS Returns an XML object from the specified update feed #> [OutputType([System.Xml.XmlNode])] [CmdletBinding(SupportsShouldProcess = $False)] Param ( [Parameter(Mandatory = $True, Position = 0, ValueFromPipeline)] [ValidateNotNullOrEmpty()] [System.String] $Uri ) # Get module strings from the JSON $resourceStrings = Get-ModuleResource # Fix for Invoke-WebRequest creating BOM in XML files; Handle Temp locations on Windows, macOS / Linux If (Test-Path -Path env:Temp) { $tempDir = $env:Temp } ElseIf (Test-Path -Path env:TMPDIR) { $tempDir = $env:TMPDIR } $tempFile = Join-Path -Path $tempDir -ChildPath ([System.IO.Path]::GetRandomFileName()) try { $params = @{ Uri = $Uri OutFile = $tempFile ContentType = $resourceStrings.ContentType.atom UserAgent = [Microsoft.PowerShell.Commands.PSUserAgent]::Chrome UseBasicParsing = $True ErrorAction = $resourceStrings.Preferences.ErrorAction } Invoke-WebRequest @params } catch [System.Net.WebException] { Write-Warning -Message ($($MyInvocation.MyCommand)) Write-Warning -Message ([string]::Format("Error : {0}", $_.Exception.Message)) } catch [System.Exception] { Write-Warning -Message "$($MyInvocation.MyCommand): failed to retrieve the update feed: $Uri." Throw $_.Exception.Message } # Import the XML from the feed into a variable and delete the temp file If (Test-Path -Path $tempFile) { try { [xml] $xml = Get-Content -Path $tempFile -Raw -ErrorAction $resourceStrings.Preferences.ErrorAction } catch [System.Exception] { Write-Warning -Message "$($MyInvocation.MyCommand): failed to read XML from file: $tempFile." Throw $_.Exception.Message } try { Remove-Item -Path $tempFile -Force -ErrorAction $resourceStrings.Preferences.ErrorAction } catch [System.Exception] { Write-Warning -Message "$($MyInvocation.MyCommand): failed to remove file: $tempFile." } } If ($Null -ne $xml) { Write-Output -InputObject $xml } } |