psDummyFileWebServer2.ps1

[System.Reflection.Assembly]::LoadWithPartialName("System.Web")
Clear-Host

$gigsToDownload =  read-host "In gigabytes, how much data should I serve? (press enter for 4.5) "
$gigsToDownload=[double]$gigsToDownload
if( !($gigsToDownload -is [double] ) -Or $gigsToDownload -le 0) { $gigsToDownload=4.5 }
Write-Host "Will serve "  $gigsToDownload " GB."
$data = [System.Text.Encoding]::UTF8.GetBytes( "".PadRight(16384,[char]0) )

$serverAt="http://localhost:80/"

$listener = New-Object System.Net.HttpListener
$listener.Prefixes.Add($serverAt)
$listener.Start()
Write-Host "Now ready for requests to: "  $serverAt

do {
    $context = $listener.GetContext()
    $response = $context.Response

    Write-Host "now serving " $gigsToDownload " GBs of data..."

    $loopTo=[math]::Round( ($gigsToDownload * 1024 * 1024 *1024) / 16384)

    $response.ContentType = "application/octet-stream"
    $response.ContentLength64 = $data.Length * $loopTo;
    $response.Headers.Add("Content-Description: File Transfer")
    $response.Headers.Add("Content-Disposition: attachment; filename=dummyFile_" + $gigsToDownload + "GB.bin")
    $response.OutputStream.Flush()

    for ($i=0; $i -le $loopTo; $i++) {
        $response.OutputStream.Write($data, 0, $data.Length)
        If ($i % 100 -eq 0) { $response.OutputStream.Flush() }
        }

    $response.Close()
    Write-Host "served data with rCode: " $response.StatusCode
} while ($listener.IsListening)