internal static Packet Instantiate(byte[] source, PacketDefinitionRegistry packetRegistry = null)
{
packetRegistry = packetRegistry ?? PacketDefinitionRegistryFactory.CreateClassicClient();
var processingStream = new MemoryStream(source);
var received = new byte[source.Length];
var packetReader = new StreamPacketReader(processingStream, received);
int packetId = packetReader.ReadByte();
if ((packetId < 0) || (packetId > 255))
{
throw new EndOfStreamException();
}
var packetDefinition = packetRegistry.Find(packetId);
var packetSize = packetDefinition.GetSize(packetReader);
packetReader.ReadBytes(packetSize - packetReader.Position);
var payload = new byte[packetSize];
Array.Copy(received, 0, payload, 0, packetSize);
var packet = new Packet(packetId, payload);
return(packet);
}
public Packet Receive(Stream processingStream)
{
var packetReader = new StreamPacketReader(processingStream, receiveBuffer);
int packetId = packetReader.ReadByte();
if ((packetId < 0) || (packetId > 255))
{
throw new EndOfStreamException();
}
diagnosticPullStream.StartPacket();
var packetDefinition = packetRegistry.Find(packetId);
var packetSize = packetDefinition.GetSize(packetReader);
packetReader.ReadBytes(packetSize - packetReader.Position);
var payload = new byte[packetSize];
Array.Copy(receiveBuffer, 0, payload, 0, packetSize);
var packet = new Packet(packetId, payload);
if (packetId == PacketDefinitions.ConnectToGameServer.Id)
{
Status = ServerConnectionStatus.PreGame;
}
diagnosticPullStream.FinishPacket(packet);
return(packet);
}
public void DumpPacket(Packet packet)
{
if (needsNewLine)
{
builder.AppendLine();
needsNewLine = false;
}
builder.AppendFormat(
$"{DateTime.UtcNow:hh:mm:ss.fff} >>>> {header}: RawPacket {packetRegistry.Find(packet.Id).Name}, length = {packet.Length}");
builder.AppendLine();
bool justAppendedNewLine = true;
for (var i = 0; i < packet.Length; i++)
{
justAppendedNewLine = false;
builder.AppendFormat("0x{0:X2}, ", packet.Payload[i]);
if ((i + 1) % MaxColumns == 0)
{
builder.AppendLine();
justAppendedNewLine = true;
}
}
if (!justAppendedNewLine)
{
builder.AppendLine();
}
columns = 0;
requiresHeader = true;
}
public PacketLogEntry ReadNextLogEntry()
{
try
{
var ticks = inputStreamReader.ReadInt64();
var directionCode = (DiagnosticStreamDirection)inputStreamReader.ReadUInt32();
var direction = directionCode == DiagnosticStreamDirection.ClientToServer
? PacketDirection.ProxyServer
: directionCode == DiagnosticStreamDirection.ServerToClient
? PacketDirection.ProxyClient
: throw new InvalidOperationException();
var packet = packetLogParser.ParsePacket(pullStream);
var name = packetRegistry.Find(packet.Id).Name;
return(new PacketLogEntry(new DateTime(ticks), name, direction, packet.Payload));
}
catch (EndOfStreamException)
{
return(null);
}
}
public IEnumerable <PacketLogEntry> ParseFile(string fileName)
{
using (var stream = new FileStream(fileName, FileMode.Open))
{
using (var reader = new BinaryReader(stream))
{
using (var pullStream = new StreamToPullStreamAdapter(stream))
{
while (stream.Position < stream.Length)
{
var time = new DateTime(reader.ReadInt64(), DateTimeKind.Utc);
var binaryDirection = (DiagnosticStreamDirection)reader.ReadInt32();
PacketDirection packetDirection;
switch (binaryDirection)
{
case DiagnosticStreamDirection.ClientToServer:
packetDirection = PacketDirection.ProxyServer;
break;
case DiagnosticStreamDirection.ServerToClient:
packetDirection = PacketDirection.ProxyClient;
break;
default:
throw new NotImplementedException($"Unknown binnary packet direction: {((int)binaryDirection):X8} at position {stream.Position}");
}
var packet = packetLogParser.ParsePacket(pullStream);
var definition = packetRegistry.Find(packet.Id);
yield return(new PacketLogEntry(time, definition.Name, packetDirection, packet.Payload));
}
}
}
}
}
