// Dump data just as we receive it.
private void DumpPacket(string typeName, object[] args)
{
// Maybe do some kind of double write protection here?
var tee = TeeStream.Get();
object packet = args[0];
switch (typeName)
{
case "bgs.SslClientConnection":
// The packet is always battle.net packet
var packetData = (byte[])TypeBattleNetPacket.GetMethod("Encode").Invoke(packet, EMPTY_ARGS);
tee.WriteBattlePacket(packetData, false);
break;
case "bgs.ClientConnection`1":
// Test type of the packet.
Type argType = packet.GetType();
if (argType.Equals(TypeBattleNetPacket))
{
byte[] data = (byte[])TypeBattleNetPacket.GetMethod("Encode").Invoke(packet, EMPTY_ARGS);
tee.WriteBattlePacket(data, false);
}
else if (argType.Equals(TypePegasusPacket))
{
byte[] data = (byte[])TypePegasusPacket.GetMethod("Encode").Invoke(packet, EMPTY_ARGS);
tee.WritePegasusPacket(data, false);
}
else
{
HookRegistry.Panic("Unknown packet type!");
}
break;
default:
// Returning null here would just introduce undefined behaviour
var msg = string.Format("Unknown typename: {0}!", typeName);
HookRegistry.Panic(msg);
break;
}
}
// Dumps the current packet onto the tee stream.
// The packet has to be reconstructed according to the rules found in the respective
// encoding(..) method.
private void DumpPacket(string typeName, object thisObj)
{
TeeStream tee = TeeStream.Get();
// Container for our dumped packet.
MemoryStream dataStream = new MemoryStream();
switch (typeName)
{
case "bgs.BattleNetPacket":
{
// Get data.
object header = TypeBattleNetPacket.GetMethod("GetHeader").Invoke(thisObj,
EMPTY_ARGS); // bnet.protocol.Header
object data = TypeBattleNetPacket.GetMethod("GetBody").Invoke(thisObj,
EMPTY_ARGS); // byte[]
// Get sizes of packet parts.
uint headerSize = (uint)TypeBattleNetHeader.GetMethod("GetSerializedSize").Invoke(header,
EMPTY_ARGS); // uint
int bodySize = ((byte[])data).Length;
// Write sizes to buffer.
int shiftedHeaderSize = ((int)headerSize >> 8);
dataStream.WriteByte((byte)(shiftedHeaderSize & 0xff));
dataStream.WriteByte((byte)(headerSize & 0xff));
// Write header to buffer.
TypeBattleNetHeader.GetMethod("Serialize", BindingFlags.Instance | BindingFlags.Public)
.Invoke(header, new object[] { dataStream });
// Copy body to buffer.
dataStream.Write((byte[])data, 0, bodySize);
var packetData = dataStream.ToArray();
// Write data to tee stream.
tee.WriteBattlePacket(packetData, true);
}
break;
case "PegasusPacket":
{
// Get data.
object data = TypePegasusPacket.GetMethod("GetBody").Invoke(thisObj, EMPTY_ARGS); // byte[]
var typeField = TypePegasusPacket.GetField("Type");
object type = typeField.GetValue(thisObj); // int
// Get size of body.
int bodySize = ((byte[])data).Length;
// Write sizes to buffer.
byte[] typeBytes = BitConverter.GetBytes((int)type); // 4 bytes
byte[] sizeBytes = BitConverter.GetBytes(bodySize); // 4 bytes
dataStream.Write(typeBytes, 0, 4);
dataStream.Write(sizeBytes, 0, 4);
// Write body to the stream.
dataStream.Write((byte[])data, 0, bodySize);
var packetData = dataStream.ToArray();
// Write to tee stream.
tee.WritePegasusPacket(packetData, true);
}
break;
default:
// Returning false here would just introduce undefined behaviour
HookRegistry.Panic("Unknown typename!");
break;
}
}