88 lines
3.2 KiB
C#
88 lines
3.2 KiB
C#
using System;
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using System.Linq;
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using System.Net.Sockets;
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using System.Text;
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using Newtonsoft.Json;
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namespace Server
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{
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class Client
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{
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private Communication communication;
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private TcpClient tcpClient;
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private NetworkStream stream;
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private byte[] buffer = new byte[1024];
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private byte[] totalBuffer = new byte[1024];
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private int bytesReceived;
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public string Username { get; set; }
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public Client(Communication communication, TcpClient tcpClient)
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{
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this.communication = communication;
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this.tcpClient = tcpClient;
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this.stream = this.tcpClient.GetStream();
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stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnRead), null);
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}
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private void OnRead(IAsyncResult ar)
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{
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int receivedBytes = this.stream.EndRead(ar);
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byte[] lengthBytes = new byte[4];
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Array.Copy(this.buffer, 0, lengthBytes, 0, 4);
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int expectedMessageLength = BitConverter.ToInt32(lengthBytes);
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if (expectedMessageLength > this.buffer.Length)
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{
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throw new OutOfMemoryException("buffer to small");
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}
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if (expectedMessageLength > this.bytesReceived + receivedBytes)
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{
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//message hasn't completely arrived yet
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this.bytesReceived += receivedBytes;
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Console.WriteLine("segmented message, {0} arrived", receivedBytes);
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this.stream.BeginRead(this.buffer, this.bytesReceived, this.buffer.Length - this.bytesReceived, new AsyncCallback(OnRead), null);
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}
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else
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{
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//message completely arrived
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if (expectedMessageLength != this.bytesReceived + receivedBytes)
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{
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Console.WriteLine("something has gone completely wrong");
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Console.WriteLine($"expected: {expectedMessageLength} bytesReceive: {bytesReceived} receivedBytes: {receivedBytes}");
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Console.WriteLine($"received WEIRD data {BitConverter.ToString(buffer.Take(receivedBytes).ToArray())} string {Encoding.ASCII.GetString(buffer.Take(receivedBytes).ToArray())}");
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}
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else if (buffer[4] == 0x02)
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{
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Console.WriteLine($"received raw data {BitConverter.ToString(buffer.Skip(5).Take(expectedMessageLength).ToArray())}");
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}
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else if (buffer[4] == 0x01)
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{
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byte[] packet = new byte[expectedMessageLength];
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Console.WriteLine(Encoding.ASCII.GetString(buffer) + " " + expectedMessageLength);
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Array.Copy(buffer, 5, packet, 0, expectedMessageLength - 5);
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Console.WriteLine(Encoding.ASCII.GetString(packet));
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HandleData(Encoding.ASCII.GetString(packet));
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}
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this.bytesReceived = 0;
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}
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this.stream.BeginRead(this.buffer, 0, this.buffer.Length, new AsyncCallback(OnRead), null);
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}
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private void HandleData(string packet)
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{
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Console.WriteLine("Data " + packet);
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JsonConvert.DeserializeObject(packet);
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}
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}
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}
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