How to catch post/get variables with Powershell httpListener?

Question

I want to know how to catch url vars with powershell system.net.HttpListener Thanks

$listener = New-Object system.net.HttpListener
$listener.Prefixes.Add('http://127.0.0.1:8080')
$listener.Start()
$context = $listener.GetContext() # block
$request = $context.Request
$response = $context.Response
# $var = read post/get var
$page = Get-Content -Path C:\play.html -Raw
$page = $page.Replace('%VAR%',$var)
$buffer = [System.Text.Encoding]::UTF8.GetBytes($page)
$response.ContentLength64 = $buffer.Length
$output = $response.OutputStream
$output.Write($buffer,0,$buffer.Length)
$output.Close()
$listener.Stop()

Answer 1

If the method header is GET then use the QueryString property to get the query parameters. If the method header is POST then check HasEntityBody property and if that is true, read the POST data from the body using the InputSteam property.