c# WebSocket服务端握手解包原理

/// <summary> /// 生成Sec-WebSocket-Accept /// </summary> /// <param name="handShakeText">客户端握手信息</param> /// <returns>Sec-WebSocket-Accept</returns> private static string GetSecKeyAccetp(byte[] handShakeBytes, int bytesLength) { string handShakeText = Encoding.UTF8.GetString(handShakeBytes, 0, bytesLength); string key = string.Empty; Regex r = new Regex(@"Sec\-WebSocket\-Key:(.*?)\r\n"); Match m = r.Match(handShakeText); if (m.Groups.Count != 0) { key = Regex.Replace(m.Value, @"Sec\-WebSocket\-Key:(.*?)\r\n", "$1").Trim(); } byte[] encryptionString = SHA1.Create().ComputeHash(Encoding.ASCII.GetBytes(key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11")); return Convert.ToBase64String(encryptionString); }