Private/Get-UpdateFeed.ps1
|
Function Get-UpdateFeed { <# .SYNOPSIS Gets the Microsoft update RSS feed and returns the XML .NOTES Author: Aaron Parker Twitter: @stealthpuppy .PARAMETER UpdateFeed URI to the feed. #> [CmdletBinding()] Param ( [Parameter(Mandatory = $True, Position = 0, ValueFromPipeline = $True)] [ValidateNotNullOrEmpty()] [String] $UpdateFeed ) #region Find the KB Article Number #! Fix for Invoke-WebRequest creating BOM in XML files; Handle Temp locations on Windows, macOS / Linux try { If (Test-Path env:Temp) { $tempDir = $env:Temp } ElseIf (Test-Path env:TMPDIR) { $tempDir = $env:TMPDIR } $tempFile = Join-Path -Path $tempDir -ChildPath ([System.IO.Path]::GetRandomFileName()) Write-Verbose -Message "Downloading feed of updates $UpdateFeed." Invoke-WebRequest -Uri $UpdateFeed -ContentType 'application/atom+xml; charset=utf-8' ` -UseBasicParsing -OutFile $tempFile -ErrorAction SilentlyContinue } catch { Throw $_ } # Import the XML from the feed into a variable and delete the temp file try { Write-Verbose -Message "Reading RSS XML from $tempFile." $feedXML = [xml] (Get-Content -Path $tempFile -ErrorAction SilentlyContinue) } catch { Write-Error "Failed to read XML from $tempFile." } try { Write-Verbose -Message "Deleting $tempFile." Remove-Item -Path $tempFile -ErrorAction SilentlyContinue } catch { Write-Warning -Message "Failed to remove file $tempFile." } #! End fix # Return the XML to the pipeline Write-Output $feedXML } |