是否有爲.NET實現的WebSocket客戶端？

Question

我想在我的Windows窗體或WPF應用程序中使用WebSockets。是否有.NET控件支持實現的WebSockets？還是有任何開源項目開始呢？

支持WebSockets的Java客戶端的開源解決方案也可以幫助我。

Answer 1

，SuperWebSocket還包括的WebSocket客戶端實現 SuperWebSocket Project Homepage

其他.NET客戶端實現包括：

• Microsoft WebSocket client prototype
• WebSocket-Sharp
• Anaida

Answer 2

Kaazing.com提供了一個可以訪問websockets的.NET客戶端庫。他們有在線教程Checklist: Build Microsoft .NET JMS Clients和Checklist: Build Microsoft .NET AMQP Clients

在github上有一個Java Websocket Client項目。

Answer 3

這是一個非常簡單的協議。有一個Java實現here，不應該太難以轉換爲C＃。如果我開始這樣做，我會在這裏發佈它...

Answer 4

下面是將Java代碼移植到C＃時的第一個快速入門。不支持SSL模式，只經過非常輕微的測試，但這是一個開始。

using System; 
using System.Collections.Generic; 
using System.IO; 
using System.Net; 
using System.Net.Sockets; 
using System.Text; 

public class WebSocket 
{ 
    private Uri mUrl; 
    private TcpClient mClient; 
    private NetworkStream mStream; 
    private bool mHandshakeComplete; 
    private Dictionary<string, string> mHeaders; 

    public WebSocket(Uri url) 
    { 
     mUrl = url; 

     string protocol = mUrl.Scheme; 
     if (!protocol.Equals("ws") && !protocol.Equals("wss")) 
      throw new ArgumentException("Unsupported protocol: " + protocol); 
    } 

    public void SetHeaders(Dictionary<string, string> headers) 
    { 
     mHeaders = headers; 
    } 

    public void Connect() 
    { 
     string host = mUrl.DnsSafeHost; 
     string path = mUrl.PathAndQuery; 
     string origin = "http://" + host; 

     mClient = CreateSocket(mUrl); 
     mStream = mClient.GetStream(); 

     int port = ((IPEndPoint)mClient.Client.RemoteEndPoint).Port; 
     if (port != 80) 
      host = host + ":" + port; 

     StringBuilder extraHeaders = new StringBuilder(); 
     if (mHeaders != null) 
     { 
      foreach (KeyValuePair<string, string> header in mHeaders) 
       extraHeaders.Append(header.Key + ": " + header.Value + "\r\n"); 
     } 

     string request = "GET " + path + " HTTP/1.1\r\n" + 
         "Upgrade: WebSocket\r\n" + 
         "Connection: Upgrade\r\n" + 
         "Host: " + host + "\r\n" + 
         "Origin: " + origin + "\r\n" + 
         extraHeaders.ToString() + "\r\n"; 
     byte[] sendBuffer = Encoding.UTF8.GetBytes(request); 

     mStream.Write(sendBuffer, 0, sendBuffer.Length); 

     StreamReader reader = new StreamReader(mStream); 
     { 
      string header = reader.ReadLine(); 
      if (!header.Equals("HTTP/1.1 101 Web Socket Protocol Handshake")) 
       throw new IOException("Invalid handshake response"); 

      header = reader.ReadLine(); 
      if (!header.Equals("Upgrade: WebSocket")) 
       throw new IOException("Invalid handshake response"); 

      header = reader.ReadLine(); 
      if (!header.Equals("Connection: Upgrade")) 
       throw new IOException("Invalid handshake response"); 
     } 

     mHandshakeComplete = true; 
    } 

    public void Send(string str) 
    { 
     if (!mHandshakeComplete) 
      throw new InvalidOperationException("Handshake not complete"); 

     byte[] sendBuffer = Encoding.UTF8.GetBytes(str); 

     mStream.WriteByte(0x00); 
     mStream.Write(sendBuffer, 0, sendBuffer.Length); 
     mStream.WriteByte(0xff); 
     mStream.Flush(); 
    } 

    public string Recv() 
    { 
     if (!mHandshakeComplete) 
      throw new InvalidOperationException("Handshake not complete"); 

     StringBuilder recvBuffer = new StringBuilder(); 

     BinaryReader reader = new BinaryReader(mStream); 
     byte b = reader.ReadByte(); 
     if ((b & 0x80) == 0x80) 
     { 
      // Skip data frame 
      int len = 0; 
      do 
      { 
       b = (byte)(reader.ReadByte() & 0x7f); 
       len += b * 128; 
      } while ((b & 0x80) != 0x80); 

      for (int i = 0; i < len; i++) 
       reader.ReadByte(); 
     } 

     while (true) 
     { 
      b = reader.ReadByte(); 
      if (b == 0xff) 
       break; 

      recvBuffer.Append(b);   
     } 

     return recvBuffer.ToString(); 
    } 

    public void Close() 
    { 
     mStream.Dispose(); 
     mClient.Close(); 
     mStream = null; 
     mClient = null; 
    } 

    private static TcpClient CreateSocket(Uri url) 
    { 
     string scheme = url.Scheme; 
     string host = url.DnsSafeHost; 

     int port = url.Port; 
     if (port <= 0) 
     { 
      if (scheme.Equals("wss")) 
       port = 443; 
      else if (scheme.Equals("ws")) 
       port = 80; 
      else 
       throw new ArgumentException("Unsupported scheme"); 
     } 

     if (scheme.Equals("wss")) 
      throw new NotImplementedException("SSL support not implemented yet"); 
     else 
      return new TcpClient(host, port); 
    } 
} 

Answer 5

最近互通橋樑和實驗室中心發佈的WebSockets協議規範的兩份草案的原型實現（在託管代碼）：

選秀hixie-thewebsocketprotocol-75和選秀hixie -thewebsocketprotocol-76

該原型可以在HTML5實驗室找到。我在this blog post中發現了我發現的所有信息（直到現在）以及關於如何使用WCF完成這些代碼的代碼片段。現在

Answer 6

如果你想要一個更輕量級的東西，看看一個朋友和我發佈的C＃服務器：https://github.com/Olivine-Labs/Alchemy-Websockets

支持香草websockets以及flash網絡套接字。它專爲我們的在線遊戲而設計，重點在於可擴展性和效率。

Answer 7

有一個客戶端實現：http://websocket4net.codeplex.com/！

Answer 8

對WebSockets的支持是coming in .NET 4.5。該鏈接還包含一個使用System.Net.WebSockets.WebSocket類的示例。

Answer 9

還有鍊金術。 http://olivinelabs.com/Alchemy-Websockets/這很酷。

Answer 10

這裏是.NET支持的WebSocket的NuGet包

Websocket pakages名單。

我更喜歡以下客戶端

1. Alchemy websocket
2. SocketIO

Answer 11

另一種選擇：XSockets.Net，具有實現服務器和客戶端。

可以通過安裝服務器：

PM> Install-Package XSockets 

或安裝客戶端：

PM> Install-Package XSockets.Client 

目前的版本是：3.0.4