hondacrx
117 lines
4.7 KiB
C#
117 lines
4.7 KiB
C#
/*
|
|
* Copyright (C) 2012-2017 CypherCore <http://github.com/CypherCore>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
using Framework.Constants;
|
|
using Google.Protobuf;
|
|
using System;
|
|
using System.Collections.Concurrent;
|
|
using System.Collections.Generic;
|
|
using System.Reflection;
|
|
|
|
namespace Game.Services
|
|
{
|
|
class ServiceManager
|
|
{
|
|
public static void Initialize()
|
|
{
|
|
Assembly currentAsm = Assembly.GetExecutingAssembly();
|
|
foreach (var type in currentAsm.GetTypes())
|
|
{
|
|
foreach (var methodInfo in type.GetMethods(BindingFlags.Instance | BindingFlags.NonPublic))
|
|
{
|
|
foreach (var msgAttr in methodInfo.GetCustomAttributes<BnetServiceAttribute>())
|
|
{
|
|
if (msgAttr == null)
|
|
continue;
|
|
|
|
if (_clientPacketTable.ContainsKey(msgAttr.Hash) && _clientPacketTable[msgAttr.Hash].ContainsKey(msgAttr.MethodId))
|
|
{
|
|
//Log.outError(LogFilter.Network, "Tried to override OpcodeHandler of {0} with {1} (Opcode {2})", _clientPacketTable[msgAttr.Opcode].ToString(), methodInfo.Name, msgAttr.Opcode);
|
|
continue;
|
|
}
|
|
|
|
var parameters = methodInfo.GetParameters();
|
|
if (parameters.Length == 0)
|
|
{
|
|
Log.outError(LogFilter.Network, "Method: {0} Has no paramters", methodInfo.Name);
|
|
continue;
|
|
}
|
|
|
|
if (!_clientPacketTable.ContainsKey(msgAttr.Hash))
|
|
_clientPacketTable[msgAttr.Hash] = new Dictionary<uint, ServiceHandler>();
|
|
|
|
_clientPacketTable[msgAttr.Hash][msgAttr.MethodId] = new ServiceHandler(methodInfo, parameters[0].ParameterType);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public static ServiceHandler GetHandler(NameHash hash, uint methodId)
|
|
{
|
|
if (!_clientPacketTable.ContainsKey(hash))
|
|
return null;
|
|
|
|
return _clientPacketTable[hash].LookupByKey(methodId);
|
|
}
|
|
|
|
static ConcurrentDictionary<NameHash, Dictionary<uint, ServiceHandler>> _clientPacketTable = new ConcurrentDictionary<NameHash, Dictionary<uint, ServiceHandler>>();
|
|
}
|
|
|
|
public class ServiceHandler
|
|
{
|
|
public ServiceHandler(MethodInfo info, Type type)
|
|
{
|
|
methodCaller = (Func<WorldSession, IMessage, BattlenetRpcErrorCode>)GetType().GetMethod("CreateDelegate", BindingFlags.Static | BindingFlags.NonPublic).MakeGenericMethod(type).Invoke(null, new object[] { info });
|
|
packetType = type;
|
|
}
|
|
|
|
public BattlenetRpcErrorCode Invoke(WorldSession session, CodedInputStream stream)
|
|
{
|
|
var request = (IMessage)Activator.CreateInstance(packetType);
|
|
request.MergeFrom(stream);
|
|
|
|
return methodCaller(session, request);
|
|
}
|
|
|
|
static Func<WorldSession, IMessage, BattlenetRpcErrorCode> CreateDelegate<P1>(MethodInfo method) where P1 : IMessage
|
|
{
|
|
// create first delegate. It is not fine because its
|
|
// signature contains unknown types T and P1
|
|
Func<WorldSession, P1, BattlenetRpcErrorCode> d = (Func<WorldSession, P1, BattlenetRpcErrorCode>)method.CreateDelegate(typeof(Func<WorldSession, P1, BattlenetRpcErrorCode>));
|
|
// create another delegate having necessary signature.
|
|
// It encapsulates first delegate with a closure
|
|
return delegate (WorldSession target, IMessage p) { return d(target, (P1)p); };
|
|
}
|
|
|
|
Func<WorldSession, IMessage, BattlenetRpcErrorCode> methodCaller;
|
|
Type packetType;
|
|
}
|
|
|
|
[AttributeUsage(AttributeTargets.Method)]
|
|
public class BnetServiceAttribute : Attribute
|
|
{
|
|
public BnetServiceAttribute(NameHash hash, uint methodId)
|
|
{
|
|
Hash = hash;
|
|
MethodId = methodId;
|
|
}
|
|
|
|
public NameHash Hash { get; }
|
|
public uint MethodId { get; }
|
|
}
|
|
}
|