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client and server connect

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This commit is contained in:
shinichi
2020-09-23 14:31:37 +02:00
parent 8e45c9a435
commit d67c8448ad
5 changed files with 107 additions and 37 deletions
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114
Server/Client.cs
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@@ -1,6 +1,7 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
@@ -16,6 +17,8 @@ namespace Server
private NetworkStream stream;
private byte[] buffer = new byte[1024];
private byte[] totalBuffer = new byte[1024];
private int bytesReceived;
public string Username { get; set; }
@@ -27,55 +30,100 @@ namespace Server
stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnRead), null);
}
//private void OnRead(IAsyncResult ar)
//{
// try
// {
// int receivedBytes = stream.EndRead(ar);
// }
// catch (IOException)
// {
// communication.Disconnect(this);
// return;
// }
// int counter = 0;
// while (buffer.Length > counter)
// {
// //Console.WriteLine(buffer.Length);
// byte[] lenghtBytes = new byte[4];
// Array.Copy(buffer, counter, lenghtBytes, 0, 4);
// int length = BitConverter.ToInt32(lenghtBytes);
// Console.WriteLine(buffer[5]);
// if (length == 0)
// {
// break;
// }
// else if(buffer[counter+4]==0x02)
// {
// }
// else if(buffer[counter+4]==0x01)
// {
// byte[] packet = new byte[length];
// Console.WriteLine(Encoding.ASCII.GetString(buffer)+" "+length);
// Array.Copy(buffer, counter+5, packet, 0, length);
// Console.WriteLine(Encoding.ASCII.GetString(packet));
// HandleData(Encoding.ASCII.GetString(packet));
// }
// counter += length;
// }
// Console.WriteLine("Done");
// stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnRead), null);
//}
private void OnRead(IAsyncResult ar)
{
try
int receivedBytes = this.stream.EndRead(ar);
byte[] lengthBytes = new byte[4];
Array.Copy(this.buffer, 0, lengthBytes, 0, 4);
int expectedMessageLength = BitConverter.ToInt32(lengthBytes);
if (expectedMessageLength > this.buffer.Length)
{
int receivedBytes = stream.EndRead(ar);
}
catch (IOException)
{
communication.Disconnect(this);
return;
throw new OutOfMemoryException("buffer to small");
}
int counter = 0;
while (buffer.Length > counter)
if (expectedMessageLength > this.bytesReceived + receivedBytes)
{
//Console.WriteLine(buffer.Length);
byte[] lenghtBytes = new byte[4];
Array.Copy(buffer, counter, lenghtBytes, 0, 4);
int length = BitConverter.ToInt32(lenghtBytes);
Console.WriteLine(buffer[5]);
if (length == 0)
{
break;
}
else if(buffer[counter+4]==0x02)
{
//message hasn't completely arrived yet
this.bytesReceived += receivedBytes;
this.stream.BeginRead(this.buffer, this.bytesReceived, this.buffer.Length - this.bytesReceived, new AsyncCallback(OnRead), null);
}
else if(buffer[counter+4]==0x01)
}
else
{
//message completely arrived
if (expectedMessageLength != this.bytesReceived + receivedBytes)
{
byte[] packet = new byte[length];
Console.WriteLine(Encoding.ASCII.GetString(buffer)+" "+length);
Array.Copy(buffer, counter+5, packet, 0, length);
Console.WriteLine("something has gone completely wrong");
Console.WriteLine($"expected: {expectedMessageLength} bytesReceive: {bytesReceived} receivedBytes: {receivedBytes}");
}
else if (buffer[4] == 0x02)
{
Console.WriteLine($"received raw data {BitConverter.ToString(buffer.Skip(5).ToArray(), 16)}");
}
else if (buffer[4] == 0x01)
{
byte[] packet = new byte[expectedMessageLength];
Console.WriteLine(Encoding.ASCII.GetString(buffer) + " " + expectedMessageLength);
Array.Copy(buffer, 5, packet, 0, expectedMessageLength - 5);
Console.WriteLine(Encoding.ASCII.GetString(packet));
HandleData(Encoding.ASCII.GetString(packet));
}
counter += length;
}
Console.WriteLine("Done");
stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(OnRead), null);
}
private void HandleData(string packet)
{
Console.WriteLine("Data "+packet);
Console.WriteLine("Data " + packet);
JsonConvert.DeserializeObject(packet);
}
}