/// <summary>
/// Packets are handled here.
/// </summary>
/// <param name="id">Packet ID</param>
/// <param name="data">Packet byte[] data</param>
private void HandlePacketClassic(int id, byte[] data)
{
using (var reader = new MinecraftDataReader(data, NetworkMode))
{
if (ServerResponseClassic.ServerResponse[id] == null)
return;
var packet = ServerResponseClassic.ServerResponse[id]().ReadPacket(reader);
RaisePacketHandled(id, packet, null);
}
}
private IAsyncResult BeginWriteWithCompression(byte[] data, AsyncCallback callback, object state)
{
int dataLength = 0; // UncompressedData.Length
// -- data here is raw IPacket with Packet length.
using (var reader = new MinecraftDataReader(data, Mode))
{
var packetLength = reader.ReadVarInt();
var packetLengthByteLength1 = GetVarIntBytes(packetLength).Length; // -- Getting size of Packet Length
var tempBuf1 = new byte[data.Length - packetLengthByteLength1];
Buffer.BlockCopy(data, packetLengthByteLength1, tempBuf1, 0, tempBuf1.Length); // -- Creating data without Packet Length
packetLength = tempBuf1.Length + GetVarIntBytes(tempBuf1.Length).Length; // -- Get first Packet length
// -- Handling this data like normal
if (packetLength >= ModernCompressionThreshold) // if Packet length > threshold, compress
{
using (var outputStream = new MemoryStream())
using (var inputStream = new DeflaterOutputStream(outputStream, new Deflater(0)))
{
inputStream.Write(tempBuf1, 0, tempBuf1.Length);
inputStream.Close();
tempBuf1 = outputStream.ToArray();
}
dataLength = tempBuf1.Length;
packetLength = dataLength + GetVarIntBytes(tempBuf1.Length).Length; // calculate new packet length
}
var packetLengthByteLength = GetVarIntBytes(packetLength);
var dataLengthByteLength = GetVarIntBytes(dataLength);
var tempBuf2 = new byte[tempBuf1.Length + packetLengthByteLength.Length + dataLengthByteLength.Length];
Buffer.BlockCopy(packetLengthByteLength, 0, tempBuf2, 0, packetLengthByteLength.Length);
Buffer.BlockCopy(dataLengthByteLength, 0, tempBuf2, packetLengthByteLength.Length, dataLengthByteLength.Length);
Buffer.BlockCopy(tempBuf1, 0, tempBuf2, packetLengthByteLength.Length + dataLengthByteLength.Length, tempBuf1.Length);
if (EncryptionEnabled)
{
return(_aesStream.BeginWrite(tempBuf2, 0, tempBuf2.Length, callback, state));
}
else
{
return(_stream.BeginWrite(tempBuf2, 0, tempBuf2.Length, callback, state));
}
}
}
private IAsyncResult BeginWriteWithCompression(byte[] data, AsyncCallback callback, object state)
{
int dataLength = 0; // UncompressedData.Length
// -- data here is raw IPacket with Packet length.
using (var reader = new MinecraftDataReader(data, Mode))
{
var packetLength = reader.ReadVarInt();
var packetLengthByteLength1 = GetVarIntBytes(packetLength).Length; // -- Getting size of Packet Length
var tempBuf1 = new byte[data.Length - packetLengthByteLength1];
Buffer.BlockCopy(data, packetLengthByteLength1, tempBuf1, 0, tempBuf1.Length); // -- Creating data without Packet Length
packetLength = tempBuf1.Length + GetVarIntBytes(tempBuf1.Length).Length; // -- Get first Packet length
// -- Handling this data like normal
if (packetLength >= ModernCompressionThreshold) // if Packet length > threshold, compress
{
using (var outputStream = new MemoryStream())
using (var inputStream = new DeflaterOutputStream(outputStream, new Deflater(0)))
{
inputStream.Write(tempBuf1, 0, tempBuf1.Length);
inputStream.Close();
tempBuf1 = outputStream.ToArray();
}
dataLength = tempBuf1.Length;
packetLength = dataLength + GetVarIntBytes(tempBuf1.Length).Length; // calculate new packet length
}
var packetLengthByteLength = GetVarIntBytes(packetLength);
var dataLengthByteLength = GetVarIntBytes(dataLength);
var tempBuf2 = new byte[tempBuf1.Length + packetLengthByteLength.Length + dataLengthByteLength.Length];
Buffer.BlockCopy(packetLengthByteLength, 0, tempBuf2, 0 , packetLengthByteLength.Length);
Buffer.BlockCopy(dataLengthByteLength , 0, tempBuf2, packetLengthByteLength.Length , dataLengthByteLength.Length);
Buffer.BlockCopy(tempBuf1 , 0, tempBuf2, packetLengthByteLength.Length + dataLengthByteLength.Length, tempBuf1.Length);
if (EncryptionEnabled)
return _aesStream.BeginWrite(tempBuf2, 0, tempBuf2.Length, callback, state);
else
return _stream.BeginWrite(tempBuf2, 0, tempBuf2.Length, callback, state);
}
}
/// <summary>
/// Packets are handled here. Compression and encryption are handled here too
/// </summary>
/// <param name="id">Packet ID</param>
/// <param name="data">Packet byte[] data</param>
private void HandlePacketModern(int id, byte[] data)
{
using (var reader = new MinecraftDataReader(data, NetworkMode))
{
IPacket packet;
switch (_minecraft.State)
{
#region Status
case ServerState.ModernStatus:
if (ServerResponse.Status[id] == null)
break;
packet = ServerResponse.Status[id]().ReadPacket(reader);
RaisePacketHandled(id, packet, ServerState.ModernStatus);
break;
#endregion Status
#region Login
case ServerState.ModernLogin:
if (ServerResponse.Login[id] == null)
break;
packet = ServerResponse.Login[id]().ReadPacket(reader);
RaisePacketHandled(id, packet, ServerState.ModernLogin);
if (id == 0x01)
ModernEnableEncryption(packet); // -- Low-level encryption handle
if (id == 0x03)
ModernSetCompression(packet); // -- Low-level compression handle
break;
#endregion Login
#region Play
case ServerState.ModernPlay:
if (ServerResponse.Play[id] == null)
break;
packet = ServerResponse.Play[id]().ReadPacket(reader);
if (ServerResponse.Play[id]() == null)
throw new Exception("");
RaisePacketHandled(id, packet, ServerState.ModernPlay);
if (id == 0x46)
ModernSetCompression(packet); // -- Low-level compression handle
// Connection lost
if (id == 0x40)
Crashed = true;
break;
#endregion Play
}
}
}
