如何将有效的TCP消息发送到.NET Framework上的telegram服务器？

Question

    static void Main(string[] args)
    {
        // Data buffer for incoming data.
        byte[] bytes = new byte[128];

        //addresses
        IPAddress ipAddress = IPAddress.Parse("149.154.167.40");
        IPEndPoint remoteEP = new IPEndPoint(ipAddress,443);

        // Create a TCP/IP  socket.
        Socket sender = new Socket(AddressFamily.InterNetwork,
            SocketType.Stream, ProtocolType.Tcp);

        // Attempt
        sender.Connect(remoteEP);
        Console.WriteLine("Socket connected to {0}",
                sender.RemoteEndPoint.ToString());

        byte[] msg = msg1(); //msg1() returns a 40-byte array

        sender.Send(msg); // Synchronize process for simplicity.  

        sender.Receive(bytes); // Synchronize process for simplicity.  

        print_bytes(bytes);

        try
        {
            sender.Shutdown(SocketShutdown.Both);
            sender.Close();
        }
        catch { } // Sorry for the empty catch block ;)
        Console.ReadKey();
        return;
    }

00-00-00-00-00-00-00-00-00-20-3D-C0-50-93-7B-58
14-00-00-00-78-97-46-60-00-BB-27-06-2B-F8-4D-9B
BE-9C-7B-B1-92-55-9F-E5

msg1()来源（有点乱）：

static byte[] msg1()
    {
        var r = new System.Collections.Generic.List<Byte>();
        //length(?) //tried with next lines uncommented, no luck.
        //r.Add(0x0A); //len/4
        //r.Add(0x00);
        //auth_key_id=0 (8 bytes)
        r.AddRange(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0 });
        //msg_id =ut*2^32
        ulong unixTimestamp = (ulong)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).Ticks;//ut*10^7
        unixTimestamp = (ulong)(unixTimestamp * 429.4967296);
        unixTimestamp -= unixTimestamp % 4;
        byte[] msgid = BitConverter.GetBytes(unixTimestamp);
        if (!BitConverter.IsLittleEndian)
            Array.Reverse(msgid);
        r.AddRange(msgid);
        //msglength
        int msgl = 20;
        byte[] ml = BitConverter.GetBytes(msgl);
        if (!BitConverter.IsLittleEndian)
            Array.Reverse(msgid);
        r.AddRange(ml);
        int rem = 4 - ml.Length;
        for (int i = 0; i < rem; i++)
            r.Add(0);
        //operation code
        r.AddRange(new byte[] { 0x78, 0x97, 0x46, 0x60 });
        //random number
        Random f = new Random(450639);
        byte[] ran16 = new byte[16];
        f.NextBytes(ran16);
        r.AddRange(ran16);
        //ready to go!
        Console.WriteLine("MESSAGE SENT:\n---\n");
        print_bytes(r.ToArray());
        Console.WriteLine("\n---\n");
        return r.ToArray();
    }

Answer 1

以下操作将起作用：请参阅以下说明：

EF0A
0000000000000000
00203DC050937B58
14000000
78974660
00BB27062BF84D9BBE9C7BB192559FE5

说明：

EF--会话开始指示器请参阅此处

0A -- total_length/ 4

0000000000000000 -- auth_key_id = 0 for plain-text messages

14000000 -- length
78974660 -- TL type-code for req_pq#60469778 
00BB27062BF84D9BBE9C7BB192559FE5 -- random 128 bit nonce