Sending HTTP to a local FiddlerCore

Question

Sending HTTP to a local FiddlerCore

I am trying to create a proxy server to handle a local request.
For example, grab a print request for a web browser and send them to the appropriate LAN printer.
My idea so far is to host the FiddlerCore mechanism in a Windows service.
This is my code:

private static void Main()
{
    FiddlerApplication.OnNotification += (sender, e) => Console.WriteLine("** NotifyUser: " + e.NotifyString);
    FiddlerApplication.Log.OnLogString += (sender, e) => Console.WriteLine("** LogString: " + e.LogString);
    FiddlerApplication.BeforeRequest += oSession => { Console.WriteLine("Before request for:\t" + oSession.fullUrl); oSession.bBufferResponse = true; ParseRequest(oSession); };
    FiddlerApplication.BeforeResponse += oSession => Console.WriteLine("{0}:HTTP {1} for {2}", oSession.id, oSession.responseCode, oSession.fullUrl);
    FiddlerApplication.AfterSessionComplete += oSession => Console.WriteLine("Finished session:\t" + oSession.fullUrl);

    Console.CancelKeyPress += Console_CancelKeyPress;
    Console.WriteLine("Starting FiddlerCore...");
    CONFIG.IgnoreServerCertErrors = true;
    FiddlerApplication.Startup(8877, true, true);
    Console.WriteLine("Hit CTRL+C to end session.");

    Object forever = new Object();
    lock (forever)
    {
        Monitor.Wait(forever);
    }
}

private static void ParseRequest(Session oSession)
{
    switch (oSession.host)
    {
        case "localhost.":
            Console.WriteLine("Handling local request...");
            break;
    }
}

private static void Console_CancelKeyPress(object sender, ConsoleCancelEventArgs e)
{
    Console.WriteLine("Shutting down...");
    FiddlerApplication.Shutdown();
    Thread.Sleep(750);
}

My question:
A function ParseRequestcan recognize local requests (i.e. http://localhost./print?whatever ), but how can I stop the proxy server from forwarding them (parsing and executing a print request, but not getting a 404 page) ?

+4

c # proxy fiddler fiddlercore

toy4fun Jan 24 '14 at 8:43

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1 answer

toy4fun · Accepted Answer · 2014-01-24T11:20:54+0000

:

BeforeRequest Fiddler.Session.
utilCreateResponseAndBypassServer - , .

, ParseRequest :

private static void ParseRequest(Session oSession)
{
    if (oSession.hostname != "localhost") return;

    Console.WriteLine("Handling local request...");
    oSession.bBufferResponse = true;
    oSession.utilCreateResponseAndBypassServer();
    oSession.oResponse.headers.HTTPResponseStatus = "200 Ok";
    oSession.oResponse["Content-Type"] = "text/html; charset=UTF-8";
    oSession.oResponse["Cache-Control"] = "private, max-age=0";
    oSession.utilSetResponseBody("<html><body>Handling local request...</body></html>");
}

Sending HTTP to a local FiddlerCore

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