public static bool Load()
{
Handlers = new Dictionary <byte, Dictionary <byte, MethodInfo> >();
foreach (var info in Reflector.FindMethodsByAttribute <PacketHandlerAttribute>())
{
PacketHandlerAttribute attribute = info.First;
MethodInfo method = info.Second;
if (!Handlers.ContainsKey(attribute.Header))
{
Handlers.Add(attribute.Header, new Dictionary <byte, MethodInfo>());
}
if (Handlers[attribute.Header].ContainsKey(attribute.Type))
{
Log.WriteLine(LogLevel.Warn, "Duplicate handler found: {0}:{1}", attribute.Header, attribute.Type);
Handlers[attribute.Header].Remove(attribute.Type);
}
Handlers[attribute.Header].Add(attribute.Type, method);
}
int count = 0;
foreach (var dict in Handlers.Values)
{
count += dict.Count;
}
Log.WriteLine(LogLevel.Info, "{0} Handlers loaded.", count);
return(true);
}
static PacketSerializer()
{
RegisteredPackets = new Dictionary <ushort, PacketInfo>();
foreach (var type in Assembly.GetExecutingAssembly().GetTypes().Where(type => type.GetInterface("InPacket") != null))
{
object[] attributes = type.GetCustomAttributes(typeof(PacketHandlerAttribute), true); // get the attributes of the packet.
if (attributes.Length == 0)
{
return;
}
PacketHandlerAttribute ma = (PacketHandlerAttribute)attributes[0];
RegisteredPackets.Add(ma.MethodId, new PacketInfo {
Size = ma.Size, Type = type
});
}
if (DUMP_REGISTERED_PACKETS)
{
using (StreamWriter w = File.AppendText(Path.Combine(Directory.GetCurrentDirectory(), "Logs", "registered_packets.txt"))) {
foreach (var pkt in RegisteredPackets)
{
w.WriteLine($"{string.Format("0x{0:x3}", pkt.Key)},{pkt.Value.Size} \t//{pkt.Value.Type}");
}
}
}
}
public static bool Initialize()
{
_handlers = new Dictionary <ushort, MethodInfo>();
foreach (var info in MapleHandler.FindMethodsByAttribute <PacketHandlerAttribute>())
{
PacketHandlerAttribute attribute = info.Left;
MethodInfo method = info.Right;
if (!_handlers.ContainsKey(attribute.Header))
{
_handlers.Add(attribute.Header, method);
}
}
return(true);
}
static PacketSerializer()
{
RegisteredPackets = new Dictionary <ushort, PacketInfo>();
foreach (var type in Assembly.GetExecutingAssembly().GetTypes().Where(type => type.GetInterface("InPacket") != null))
{
object[] attributes = type.GetCustomAttributes(typeof(PacketHandlerAttribute), true); // get the attributes of the packet.
if (attributes.Length == 0)
{
return;
}
PacketHandlerAttribute ma = (PacketHandlerAttribute)attributes[0];
RegisteredPackets.Add(ma.MethodId, new PacketInfo {
Size = ma.Size, Type = type
});
}
}
private void LoadPacketHandlers(Type type)
{
var methods = type.GetMethods();
foreach (MethodInfo method in methods)
{
{
PacketHandlerAttribute packetHandlerAttribute = Attribute.GetCustomAttribute(method, typeof(PacketHandlerAttribute), false) as PacketHandlerAttribute;
if (packetHandlerAttribute != null)
{
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length < 1)
{
continue;
}
if (!typeof(Package).IsAssignableFrom(parameters[0].ParameterType))
{
continue;
}
if (packetHandlerAttribute.PacketType == null)
{
packetHandlerAttribute.PacketType = parameters[0].ParameterType;
}
if (Attribute.GetCustomAttribute(method, typeof(SendAttribute), false) != null)
{
_packetSendHandlerDictionary.Add(method, packetHandlerAttribute);
}
else
{
_packetHandlerDictionary.Add(method, packetHandlerAttribute);
}
}
}
}
}
internal Package PluginPacketHandler(Package message, bool isReceiveHandler, Player player)
{
if (message == null)
{
return(null);
}
Package currentPackage = message;
Package returnPacket = currentPackage;
try
{
Dictionary <MethodInfo, PacketHandlerAttribute> packetHandlers;
if (isReceiveHandler)
{
packetHandlers = _packetHandlerDictionary;
}
else
{
packetHandlers = _packetSendHandlerDictionary;
}
if (packetHandlers == null)
{
return(message);
}
foreach (var handler in packetHandlers)
{
if (handler.Value == null)
{
continue;
}
if (handler.Key == null)
{
continue;
}
PacketHandlerAttribute atrib = handler.Value;
if (atrib.PacketType == null)
{
continue;
}
if (!atrib.PacketType.IsInstanceOfType(currentPackage) && atrib.PacketType != currentPackage.GetType())
{
//Log.Warn($"No assignable {atrib.PacketType.Name} from {currentPackage.GetType().Name}");
continue;
}
//Log.Warn($"IS assignable {atrib.PacketType.Name} from {currentPackage.GetType().Name}");
MethodInfo method = handler.Key;
if (method == null)
{
continue;
}
if (method.IsStatic)
{
//TODO: Move below and set pluginInstance = null instead
method.Invoke(null, new object[] { currentPackage, player });
}
else
{
object pluginInstance = _plugins.FirstOrDefault(plugin => plugin.GetType() == method.DeclaringType);
if (pluginInstance == null)
{
continue;
}
if (method.ReturnType == typeof(void))
{
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length == 1)
{
method.Invoke(pluginInstance, new object[] { currentPackage });
}
else if (parameters.Length == 2 && parameters[1].ParameterType == typeof(Player))
{
method.Invoke(pluginInstance, new object[] { currentPackage, player });
}
}
else
{
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length == 1)
{
returnPacket = method.Invoke(pluginInstance, new object[] { currentPackage }) as Package;
}
else if (parameters.Length == 2 && parameters[1].ParameterType == typeof(Player))
{
returnPacket = method.Invoke(pluginInstance, new object[] { currentPackage, player }) as Package;
}
}
}
}
}
catch (Exception ex)
{
//For now we will just ignore this, not to big of a deal.
//Will have to think a bit more about this later on.
Log.Warn("Plugin Error: ", ex);
Log.Warn("Plugin Error: ", ex.InnerException);
}
return(returnPacket);
}
