// PacketFunction
public void LoadPacketHandler()
{
Log.Info("TCPManager", "Loading the Packet Handler");
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
foreach (Type type in assembly.GetTypes())
{
// Pick up a class
if (type.IsClass != true)
{
continue;
}
foreach (MethodInfo m in type.GetMethods())
{
foreach (object at in m.GetCustomAttributes(typeof(PacketHandlerAttribute), false))
{
PacketHandlerAttribute attr = (PacketHandlerAttribute)at;
PacketFunction handler = (PacketFunction)Delegate.CreateDelegate(typeof(PacketFunction), m);
Log.Debug("TCPManager", $"Registering handler for opcode : " +
$"{attr.Opcode.ToString("X8")} " +
$"{handler.Method.Module}" +
$"{handler.Method.DeclaringType.AssemblyQualifiedName}");
m_packetHandlers[attr.Opcode] = handler;
stateRequirement[attr.Opcode] = (byte)attr.State;
}
}
}
}
}
public void LoadPacketHandler()
{
Log.Debug("GameServer: Loading the Packet Handler");
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
foreach (Type type in assembly.GetTypes())
{
// Pick up a class
if (type.IsClass != true)
{
continue;
}
if (type.IsSubclassOf(typeof(IPacketHandler)))
{
continue;
}
foreach (MethodInfo m in type.GetMethods())
{
foreach (object at in m.GetCustomAttributes(typeof(PacketHandlerAttribute), false))
{
PacketHandlerAttribute attr = at as PacketHandlerAttribute;
PacketFunction handler = (PacketFunction)Delegate.CreateDelegate(typeof(PacketFunction), m);
Log.Debug("GameServer: Registering handler for opcode : " + attr.Opcode.ToString("X8"));
m_packetHandlers[attr.Opcode] = handler;
}
}
}
}
}
public void HandlePacket(Connection conn, PacketIn Packet)
{
PacketFunction packetHandler = null;
if (Packet.Opcode < (ulong)m_packetHandlers.Length)
{
packetHandler = m_packetHandlers[Packet.Opcode];
}
else
{
Log.Error("HandlePacket: ", "Can not handle :" + Packet.Opcode + "(" + Packet.Opcode.ToString("X8") + ")");
}
if (packetHandler != null)
{
PacketHandlerAttribute[] packethandlerattribs = (PacketHandlerAttribute[])packetHandler.GetType().GetCustomAttributes(typeof(PacketHandlerAttribute), true);
try
{
packetHandler.Invoke(conn, Packet);
}
catch (Exception e)
{
Log.Error("HandlePacket: ", "Packet handler error :" + Packet.Opcode + " " + e.ToString());
}
}
else
{
Log.Error("HandlePacket: ", "Can not Handle opcode :" + Packet.Opcode + "(" + Packet.Opcode.ToString("X8") + ")");
}
}
public void HandlePacket(BaseClient client, PacketIn Packet)
{
Log.Dump("packethandle", Packet.ToArray(), 0, Packet.ToArray().Length);
if (client == null || Packet == null)
{
Log.Error("TCPManager", "Packet || Client == null");
return;
}
PacketFunction packetHandler = null;
if (Packet.Opcode < (ulong)m_packetHandlers.Length)
{
packetHandler = m_packetHandlers[Packet.Opcode];
}
else if (!Errors.Contains(Packet.Opcode))
{
Errors.Add(Packet.Opcode);
Log.Error("TCPManager", "Can not handle :" + Packet.Opcode + "(" + Packet.Opcode.ToString("X8") + ")");
}
if (packetHandler != null)
{
PacketHandlerAttribute[] packethandlerattribs = (PacketHandlerAttribute[])packetHandler.GetType().GetCustomAttributes(typeof(PacketHandlerAttribute), true);
if (packethandlerattribs.Length > 0)
{
if (packethandlerattribs[0].State > client.State)
{
Log.Error("TCPManager", "Can not handle packet (" + Packet.Opcode.ToString("X8") + "), Invalid client state (" + client.GetIp + ")");
return;
}
}
try
{
packetHandler.Invoke(client, Packet);
}
catch (Exception e)
{
Log.Error("TCPManager", "Packet handler error :" + Packet.Opcode + " " + e.ToString());
}
}
else if (!Errors.Contains(Packet.Opcode))
{
Errors.Add(Packet.Opcode);
Log.Error("TCPManager", "Can not Handle opcode :" + Packet.Opcode + "(" + Packet.Opcode.ToString("X8") + ")");
}
}
public void HandlePacket(BaseClient client, PacketIn packet)
{
//#if DEBUG
Log.Info("HandlePacket", $"Packet : {packet.Opcode} ({packet.Opcode.ToString("X8")})");
Log.Dump("HandlePacket", packet.ToArray(), 0, packet.ToArray().Length);
//#endif
if (client == null)
{
Log.Error("TCPManager", "Client == null");
return;
}
PacketFunction packetHandler = null;
if (packet.Opcode < (ulong)m_packetHandlers.Length)
{
packetHandler = m_packetHandlers[packet.Opcode];
}
else if (!Errors.Contains(packet.Opcode))
{
Errors.Add(packet.Opcode);
Log.Error("TCPManager", $"Can not handle :{packet.Opcode} ({packet.Opcode.ToString("X8")})");
}
if (packetHandler != null)
{
/*
*
* The reflection code below seems to have been used to verify the client was in the correct state before the packet was handled.
* However, it didn't actually work; eliminating the reflection and using an array implementation broke the emu and testing confirmed
* the original check was broken, so I've eliminated it for now.
*
*
* if (stateRequirement[packet.Opcode] > client.State)
* {
* Log.Error("TCPManager", $"Can not handle packet ({packet.Opcode.ToString("X8")}), Invalid client state {client.State} (expected {stateRequirement[packet.Opcode]}) ({client.GetIp()})");
* PacketHandlerAttribute[] packethandlerattribs = (PacketHandlerAttribute[])packetHandler.GetType().GetCustomAttributes(typeof(PacketHandlerAttribute), true);
* if (packethandlerattribs.Length > 0)
* {
* Log.Error("TCPManager", $"Old code provided state {packethandlerattribs[0].State}");
* if (packethandlerattribs[0].State > client.State)
* return;
* }
* else
* {
* Log.Error("TCPManager", "Old code was stateless");
* }
* }
*/
try
{
packetHandler.Invoke(client, packet);
}
catch (Exception e)
{
Log.Error("TCPManager", $"Packet handler error :{packet.Opcode} {e}");
}
}
else if (!Errors.Contains(packet.Opcode))
{
Errors.Add(packet.Opcode);
Log.Error("TCPManager", $"Can not Handle opcode :{packet.Opcode} ({packet.Opcode.ToString("X8")})");
}
}
// Enregistre un handler
public void RegisterPacketHandler(int packetCode, PacketFunction handler)
{
m_packetHandlers[packetCode] = handler;
}