1  /// <summary>
 2         /// 打包请求连接数据
 3         /// </summary>
 4         /// <param name="handShakeBytes"></param>
 5         /// <param name="length"></param>
 6         /// <returns></returns>
 7         private byte[] PackageHandShakeData(byte[] handShakeBytes, int length)
 8         {
 9             string handShakeText = Encoding.UTF8.GetString(handShakeBytes, 0, length);
10             string key = string.Empty;
11             Regex reg = new Regex(@"Sec\-WebSocket\-Key:(.*?)\r\n");
12             Match m = reg.Match(handShakeText);
13             if (m.Value != "")
14             {
15                 key = Regex.Replace(m.Value, @"Sec\-WebSocket\-Key:(.*?)\r\n", "$1").Trim();
16             }
17             byte[] secKeyBytes = SHA1.Create().ComputeHash(Encoding.ASCII.GetBytes(key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"));
18             string secKey = Convert.ToBase64String(secKeyBytes);
19             var responseBuilder = new StringBuilder();
20             responseBuilder.Append("HTTP/1.1 101 Switching Protocols" + "\r\n");
21             responseBuilder.Append("Upgrade: websocket" + "\r\n");
22             responseBuilder.Append("Connection: Upgrade" + "\r\n");
23             responseBuilder.Append("Sec-WebSocket-Accept: " + secKey + "\r\n\r\n");
24             return Encoding.UTF8.GetBytes(responseBuilder.ToString());
25         }

 1  /// <summary>
 2         /// 把发送给客户端消息打包处理
 3         /// </summary>
 4         /// <returns></returns>
 5         /// <param name="message">Message.</param>
 6         private byte[] SendMsg(string msg)
 7         {
 8             byte[] content = null;
 9             byte[] temp = Encoding.UTF8.GetBytes(msg);
10             if (temp.Length < 126)
11             {
12                 content = new byte[temp.Length + 2];
13                 content[0] = 0x81;
14                 content[1] = (byte)temp.Length;
15                 Buffer.BlockCopy(temp, 0, content, 2, temp.Length);
16             }
17             else if (temp.Length < 0xFFFF)
18             {
19                 content = new byte[temp.Length + 4];
20                 content[0] = 0x81;
21                 content[1] = 126;
22                 content[2] = (byte)(temp.Length & 0xFF);
23                 content[3] = (byte)(temp.Length >> 8 & 0xFF);
24                 Buffer.BlockCopy(temp, 0, content, 4, temp.Length);
25             }
26             return content;
27         }

作者：YanBigFeg —— 颜秉锋

出处：http://www.cnblogs.com/yanbigfeg

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