Is it possible to disconnect a client mid-request?

Question

I'm trying to simulate the situation where a client is sending a large POST request to the server and the server (or a load balancer) terminates the client connection halfway through the request. Is this possible to do with Fiddler? I'm open to other (Windows) tool suggestions as well.

Thanks!

Answer 1

Click Rules > Customize Rules. Scroll to the OnPeekAtRequestHeaders function. Add code like so:

static function OnPeekAtRequestHeaders(oSession: Session) {

    if (oSession.uriContains("myupload.php") && 
        oSession.oRequest.headers.Exists("Content-Length") && 
        oSession.oRequest.headers["Content-Length"] != "0")
    {
        oSession.oRequest.pipeClient.EndWithRST();
    }
}