forked from ElunaLuaEngine/Eluna
/
PacketHooks.cpp
139 lines (112 loc) · 3.49 KB
/
PacketHooks.cpp
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/*
* Copyright (C) 2010 - 2016 Eluna Lua Engine <http://emudevs.com/>
* This program is free software licensed under GPL version 3
* Please see the included DOCS/LICENSE.md for more information
*/
#include "Hooks.h"
#include "HookHelpers.h"
#include "LuaEngine.h"
#include "BindingMap.h"
#include "ElunaIncludes.h"
#include "ElunaTemplate.h"
using namespace Hooks;
#define START_HOOK_SERVER(EVENT) \
if (!IsEnabled())\
return;\
auto key = EventKey<ServerEvents>(EVENT);\
if (!ServerEventBindings->HasBindingsFor(key))\
return;\
LOCK_ELUNA
#define START_HOOK_PACKET(EVENT, OPCODE) \
if (!IsEnabled())\
return;\
auto key = EntryKey<PacketEvents>(EVENT, OPCODE);\
if (!PacketEventBindings->HasBindingsFor(key))\
return;\
LOCK_ELUNA
bool Eluna::OnPacketSend(WorldSession* session, const WorldPacket& packet)
{
bool result = true;
Player* player = NULL;
if (session)
player = session->GetPlayer();
OnPacketSendAny(player, packet, result);
OnPacketSendOne(player, packet, result);
return result;
}
void Eluna::OnPacketSendAny(Player* player, const WorldPacket& packet, bool& result)
{
START_HOOK_SERVER(SERVER_EVENT_ON_PACKET_SEND);
Push(new WorldPacket(packet));
Push(player);
int n = SetupStack(ServerEventBindings, key, 2);
while (n > 0)
{
int r = CallOneFunction(n--, 2, 1);
if (lua_isboolean(L, r + 0) && !lua_toboolean(L, r + 0))
result = false;
lua_pop(L, 1);
}
CleanUpStack(2);
}
void Eluna::OnPacketSendOne(Player* player, const WorldPacket& packet, bool& result)
{
START_HOOK_PACKET(PACKET_EVENT_ON_PACKET_SEND, packet.GetOpcode());
Push(new WorldPacket(packet));
Push(player);
int n = SetupStack(PacketEventBindings, key, 2);
while (n > 0)
{
int r = CallOneFunction(n--, 2, 1);
if (lua_isboolean(L, r + 0) && !lua_toboolean(L, r + 0))
result = false;
lua_pop(L, 1);
}
CleanUpStack(2);
}
bool Eluna::OnPacketReceive(WorldSession* session, WorldPacket& packet)
{
bool result = true;
Player* player = NULL;
if (session)
player = session->GetPlayer();
OnPacketReceiveAny(player, packet, result);
OnPacketReceiveOne(player, packet, result);
return result;
}
void Eluna::OnPacketReceiveAny(Player* player, WorldPacket& packet, bool& result)
{
START_HOOK_SERVER(SERVER_EVENT_ON_PACKET_RECEIVE);
Push(new WorldPacket(packet));
Push(player);
int n = SetupStack(ServerEventBindings, key, 2);
while (n > 0)
{
int r = CallOneFunction(n--, 2, 2);
if (lua_isboolean(L, r + 0) && !lua_toboolean(L, r + 0))
result = false;
if (lua_isuserdata(L, r + 1))
if (WorldPacket* data = CHECKOBJ<WorldPacket>(L, r + 1, false))
packet = *data;
lua_pop(L, 2);
}
CleanUpStack(2);
}
void Eluna::OnPacketReceiveOne(Player* player, WorldPacket& packet, bool& result)
{
START_HOOK_PACKET(PACKET_EVENT_ON_PACKET_SEND, packet.GetOpcode());
Push(new WorldPacket(packet));
Push(player);
int n = SetupStack(PacketEventBindings, key, 2);
while (n > 0)
{
int r = CallOneFunction(n--, 2, 2);
if (lua_isboolean(L, r + 0) && !lua_toboolean(L, r + 0))
result = false;
if (lua_isuserdata(L, r + 1))
if (WorldPacket* data = CHECKOBJ<WorldPacket>(L, r + 1, false))
packet = *data;
lua_pop(L, 2);
}
CleanUpStack(2);
}