WooYun.org

http://demo.htmdata.com/ashx/GetPage.ashx

public void ProcessRequest(HttpContext context)
{
    context.Response.ContentType = "text/plain";
    string s = "";
    string requestUriString = Tool.CStr(context.Request["url"]);
    try
    {
        WebRequest request = WebRequest.Create(requestUriString);
        WebResponse response = request.GetResponse();
        Stream responseStream = response.GetResponseStream();
        using (StreamReader reader = new StreamReader(responseStream, Encoding.UTF8))
        {
            s = reader.ReadToEnd();
        }
        request.Abort();
        response.Close();
        responseStream.Dispose();
    }
    catch (Exception)
    {
    }
    context.Response.Write(s);
}