public PacketInspector()
{
this.typeInfo = new TypeInfo(typeof(MessageBody));
}
private void InitializeSubTypes()
{
this.subTypes.Clear();
var types = this.type.Assembly.GetTypes().Where(t => t.BaseType == this.type);
foreach (var subType in types)
{
var contract =
subType.GetCustomAttributes(typeof(AoContractAttribute), false)
.Cast<AoContractAttribute>()
.FirstOrDefault();
if (contract == null)
{
continue;
}
var typeInfo = new TypeInfo(subType);
this.subTypes.Add(contract.Identifier, typeInfo);
}
}
private void ProcessIPCMessage(byte[] msgBytes)
{
try
{
using (MemoryStream stream = new MemoryStream(msgBytes))
{
StreamReader reader = new StreamReader(stream)
{
Position = 0
};
if (reader.ReadUInt16() != 0xFFFF)
{
return;
}
ushort len = reader.ReadUInt16();
if (len != msgBytes.Length)
{
return;
}
byte channelId = reader.ReadByte();
if (channelId != _channelId)
{
return;
}
int charId = reader.ReadInt32();
if (charId == Game.ClientInst)
{
return;
}
reader.Position = 2;
TypeInfo subTypeInfo = _packetInspector.FindSubType(reader, out int opCode);
if (subTypeInfo == null)
{
return;
}
var serializer = _serializerResolver.GetSerializer(subTypeInfo.Type);
if (serializer == null)
{
return;
}
reader.Position = 11;
SerializationContext serializationContext = new SerializationContext(_serializerResolver);
IPCMessage message = (IPCMessage)serializer.Deserialize(reader, serializationContext);
if (_callbacks.ContainsKey(opCode))
{
_callbacks[opCode]?.Invoke(charId, message);
}
}
}
catch (Exception e)
{
//If you get this message and it concerns you please create an issue or contact me on Discord!
Chat.WriteLine($"Failed to process IPC message {e.Message}");
}
}
