Get-AdobeFlashMsi.ps1

Get-AdobeFlashMsi.ps1

#Requires -Version 2
function Get-AdobeFlashMsi {

    [CmdletBinding()]

    param (

        [string]
        $Destination = $(Join-Path -Path $env:USERPROFILE -ChildPath 'Downloads' )

    ) #param

    begin {

        Add-Type -AssemblyName System.Web.Extensions

        Write-Verbose -Message "Setting TLS 1.2 as the .NET SecurityProtocol for the download."
        [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

    } #begin

    process {
        $MajorVersion = (Get-LatestFlashVersion).Major
        $FlashActiveX = "https://www.adobe.com/etc/adc/token/generation.installerlink.json?href=https%3A%2F%2Ffpdownload.macromedia.com%2Fget%2Fflashplayer%2Fdistyfp%2Fcurrent%2Fwin%2Finstall_flash_player_$($MajorVersion)_active_x.msi"
        $FlashPlugin = "https://www.adobe.com/etc/adc/token/generation.installerlink.json?href=https%3A%2F%2Ffpdownload.macromedia.com%2Fget%2Fflashplayer%2Fdistyfp%2Fcurrent%2Fwin%2Finstall_flash_player_$($MajorVersion)_plugin.msi"
        $FlashPpapi = "https://www.adobe.com/etc/adc/token/generation.installerlink.json?href=https%3A%2F%2Ffpdownload.macromedia.com%2Fget%2Fflashplayer%2Fdistyfp%2Fcurrent%2Fwin%2Finstall_flash_player_$($MajorVersion)_ppapi.msi"
        $FlashUrls = @($FlashActiveX,$FlashPlugin,$FlashPpapi)
        
        $FlashUrls | ForEach-Object {
            
            Write-Verbose -Message "Getting download token from Adobe"
            $JsonResponse = (New-Object System.Net.WebClient).DownloadString($_)

            Write-Verbose -Message "Extract the URL string from the JSON response"
            $Url = (New-Object System.Web.Script.Serialization.JavaScriptSerializer).DeserializeObject($JsonResponse).Values

            Write-Verbose -Message "Determining filename"
            $FileName = $($Url.Split('?')[0].Split('/')[-1])
            $FilePath = Join-Path -Path $Destination -ChildPath $FileName

            Write-Verbose -Message "Downloading $FileName"
            (New-Object System.Net.WebClient).DownloadFile("$Url","$FilePath")

        } #ForEach

    } #process

} #function Get-AdobeFlashMsi


function Get-LatestFlashVersion {
    # Modified from https://github.com/auberginehill/update-adobe-flash-player/blob/master/Update-AdobeFlashPlayer.ps1

    $url = "https://fpdownload.macromedia.com/pub/flashplayer/masterversion/masterversion.xml"
    $xml_versions = New-Object XML
    $xml_versions.Load($url)

    # The different flash types can have different version numbers. I need to loop through
    # all of them to get be sure
    [version]$xml_activex_win10_current = ($xml_versions.version.release.ActiveX_win10.version).replace(",",".")
    [version]$xml_activex_edge_current = ($xml_versions.version.release.ActiveX_Edge.version).replace(",",".")
    [version]$xml_activex_win_current = ($xml_versions.version.release.ActiveX_win.version).replace(",",".")
    [version]$xml_plugin_win_current = ($xml_versions.version.release.NPAPI_win.version).replace(",",".")
    [version]$xml_ppapi_win_current = ($xml_versions.version.release.PPAPI_win.version).replace(",",".")

    $FlashVersions = $xml_activex_win10_current,$xml_activex_edge_current,$xml_activex_win_current,$xml_plugin_win_current,$xml_ppapi_win_current
    $FlashVersions = Sort-Object -InputObject $FlashVersions -Descending 
    $LatestAppVersion = $FlashVersions[0]
    
    return $LatestAppVersion
}