使用HttpWebRequest时Silverlight 5插件崩溃或请求中止

Question

我试图在azure blob存储上上传图片，但我很难完成。

我正在使用以下代码上传：

public static void Upload(this Stream payLoad, string uri)
        {
            var webRequest = (HttpWebRequest)WebRequestCreator.ClientHttp.Create(new Uri(uri));
            webRequest.Method = "PUT";
            webRequest.ContentLength = payLoad.Length;
            var state = new HttpWebRequestAsyncState<Stream>() { HttpWebRequest = webRequest, PayLoad = payLoad };
            Task.Factory.FromAsync<Stream>(
                webRequest.BeginGetRequestStream, 
                webRequest.EndGetRequestStream, state)
                .ContinueWith(t1 =>
                {
                    var asyncState1 = (HttpWebRequestAsyncState<Stream>)t1.AsyncState;
                    using (var requestStream = t1.Result)
                    {
                        int bytesRead = 0;
                        byte[] buffer = new Byte[4096];
                        while ((bytesRead = asyncState1.PayLoad.Read(buffer, 0, buffer.Length)) != 0)
                        {
                            requestStream.Write(buffer, 0, bytesRead);
                            requestStream.Flush();
                        }
                    }
                    Task.Factory.FromAsync<WebResponse>(
                        asyncState1.HttpWebRequest.BeginGetResponse, 
                        asyncState1.HttpWebRequest.EndGetResponse,
                       asyncState1)
                       .ContinueWith(t2 =>
                       {
                           var asyncState2 = (HttpWebRequestAsyncState<Stream>)t2.AsyncState;
                           if (asyncState2.PayLoad != null) 
                           {
                               asyncState2.PayLoad.Close();
                           }
                           using (var responce = t2.Result)
                           {
                               if (responce != null) responce.Close();
                           }
                       });
                });
        }

当我在我的开发机器（带有windows 2008 R2 64位的vmware）上运行这段代码时，我会遇到插件崩溃，当我在循环中调用它时，没有任何信息可以在我的级别上使用。

当我在我的个人盒子windows 7终极64位上运行此代码时，一些文件被上传，一些文件没有上传，并且在fiddler中有一个状态：会话被客户端、fiddler或服务器中止。

调用此操作的代码是：

private void FileUploadButton_Click(object sender, RoutedEventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog() { Multiselect = true, Filter = "Image files (*.jpg)|*.jpg" };
            if (ofd.ShowDialog() != true) return;
            foreach (var file in ofd.Files)
            {
                string uri = "http://xxxx.blob.core.windows.net/test/" + file.Name + "?sr=c&si=dev&sig=%2FIKx1NhY8FzgYge7XXXXXXXXXXXXXXXXXXX";
                file.OpenRead().Upload(uri);
            }
        }

有人看到我做错了什么吗？

提前感谢

Answer 1

这个问题似乎与卡巴斯基的网络安全有关。当禁用它时，它会工作。