HttpWebResponse send to web browser?

I am new to c# and am making a simple proxy to edit certain headers.

I have used HttpLisenter to get the request and then used HttpWebRequest and Response to edit, send and receiv开发者_运维百科e.

Now I need some help to send the edited response back to the web browser. Does anyone have any links or examples? Im stumped :)

Thanks

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Here's a short example:

public void ProcessRequest(HttpContext context)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create([NEW_URL]);
    request.Timeout = 1000 * 60 * 60;

    request.Method = context.Request.HttpMethod;

    if (request.Method.ToUpper() == "POST")
    {
        Stream sourceInputStream = context.Request.InputStream;
        Stream targetOutputStream = request.GetRequestStream();
        sourceInputStream.CopyTo(targetOutputStream);                
    }

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    context.Response.ContentType = request.ContentType;

    using (response)
    {
        Stream targetInputStream = response.GetResponseStream();
        Stream sourceOutputStream = context.Response.OutputStream;
        targetInputStream.CopyTo(sourceOutputStream);                
    }
}

This assume the following extension method is defined (I think using this makes the sample more readable):

public static void CopyTo(this Stream input, Stream output)
{
    using (input)
    using (output)
    {
        byte[] buffer = new byte[1024];
        for (int amountRead = input.Read(buffer, 0, buffer.Length); amountRead > 0; amountRead = input.Read(buffer, 0, buffer.Length))
        {
            output.Write(buffer, 0, amountRead);
        }                
    }
}

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You could save the response to an html file and then start the browser with a command to open the file.

class Program
{
    static int Main() {
        WebRequest wr = HttpWebRequest.Create("http://google.com/");
        HttpWebResponse wresp = (HttpWebResponse)wr.GetResponse();

        string outFile = @"c:\tmp\google.html";

        using (StreamReader sr = new StreamReader(wresp.GetResponseStream()))
        {
             using(StreamWriter sw = new StreamWriter(outFile, false)) {
                  sw.Write(sr.ReadToEnd());
             }
        }

        BrowseFile(outFile);

        return 0;
   }

   static void BrowseFile(string filePath)
   {
       ProcessStartInfo startInfo = new ProcessStartInfo();
       startInfo.FileName = @"C:\Program Files (x86)\Mozilla Firefox\firefox.exe";
       startInfo.Arguments = filePath;
       Process.Start(startInfo);
   }
}

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Take a look at source code for existing proxy servers.

• Mini Proxy Server (c#)
• Web Proxy Server (c#)