我想在我的Windows窗体或WPF应用程序中使用WebSockets。是否有支持WebSockets实现的.NET控件?或者是否有任何开源项目开始呢?
支持WebSockets的Java客户端的开源解决方案也可以帮助我。
答案 0 :(得分:24)
这是将Java代码移植到C#的快速第一步。不支持SSL模式,只进行了非常轻微的测试,但这是一个开始。
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);
}
}
答案 1 :(得分:20)
现在,SuperWebSocket还包括一个WebSocket客户端实现 SuperWebSocket Project Homepage
其他.NET客户端实现包括:
答案 2 :(得分:11)
对WebSockets的支持是coming in .NET 4.5。该链接还包含使用System.Net.WebSockets.WebSocket类的示例。
答案 3 :(得分:7)
Kaazing.com提供了一个可以访问websockets的.NET客户端库。他们在Checklist: Build Microsoft .NET JMS Clients和Checklist: Build Microsoft .NET AMQP Clients
在线提供教程github上有一个Java Websocket Client项目。
答案 4 :(得分:5)
有一个客户端实现:http://websocket4net.codeplex.com/!
答案 5 :(得分:4)
另一个选择:XSockets.Net,实现服务器和客户端。
可以通过以下方式安装服务器:
PM> Install-Package XSockets
或通过以下方式安装客户端:
PM> Install-Package XSockets.Client
当前版本为:3.0.4
答案 6 :(得分:3)
答案 7 :(得分:1)
这是一个非常简单的协议。有一个java实现here,不应该太难转换成c#。如果我开始这样做,我会在这里发布...
答案 8 :(得分:1)
最近,互操作性桥接和实验室中心发布了两个WebSockets协议规范草案的原型实现(在托管代码中):
draft-hixie-thewebsocketprotocol-75 和 draft-hixie-thewebsocketprotocol-76
原型可以在HTML5实验室找到。我在this blog post中输入了我发现的所有信息(直到现在)以及有关如何使用WCF完成此操作的代码片段。
答案 9 :(得分:1)
如果你想要更轻量级的东西,请查看朋友和我发布的C#服务器:https://github.com/Olivine-Labs/Alchemy-Websockets
支持香草腹板和闪光腹板。它专为我们的在线游戏而设计,专注于可扩展性和效率。
答案 10 :(得分:0)
还有炼金术。 http://olivinelabs.com/Alchemy-Websockets/这很酷。