dvander@592: /**
ds@653:  * vim: set ts=4 :
ds@1330:  * =============================================================================
dvander@1231:  * SourceMod
ds@3099:  * Copyright (C) 2004-2010 AlliedModders LLC.  All rights reserved.
ds@1330:  * =============================================================================
ds@653:  *
ds@1330:  * This program is free software; you can redistribute it and/or modify it under
ds@1330:  * the terms of the GNU General Public License, version 3.0, as published by the
ds@1330:  * Free Software Foundation.
dvander@1231:  * 
ds@1330:  * This program is distributed in the hope that it will be useful, but WITHOUT
ds@1330:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
ds@1330:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
ds@1330:  * details.
dvander@1231:  *
ds@1330:  * You should have received a copy of the GNU General Public License along with
ds@1330:  * this program.  If not, see <http://www.gnu.org/licenses/>.
dvander@1231:  *
ds@1330:  * As a special exception, AlliedModders LLC gives you permission to link the
ds@1330:  * code of this program (as well as its derivative works) to "Half-Life 2," the
ds@1330:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
ds@1330:  * by the Valve Corporation.  You must obey the GNU General Public License in
ds@1330:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
ds@1330:  * this exception to all derivative works.  AlliedModders LLC defines further
ds@1330:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
ds@1330:  * or <http://www.sourcemod.net/license.php>.
ds@653:  *
ds@653:  * Version: $Id$
ds@653:  */
dvander@592: 
dvander@592: #include "UserMessages.h"
ds@765: #include "sm_stringutil.h"
dvander@592: 
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: #include <cstrike15_usermessage_helpers.h>
skamonkey@3743: #endif
skamonkey@3743: 
dvander@616: UserMessages g_UserMsgs;
dvander@592: 
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: SH_DECL_HOOK3_void(IVEngineServer, SendUserMessage, SH_NOATTRIB, 0, IRecipientFilter &, int, const protobuf::Message &);
skamonkey@3743: #else
ds@3099: #if SOURCE_ENGINE >= SE_LEFT4DEAD
ds@2400: SH_DECL_HOOK3(IVEngineServer, UserMessageBegin, SH_NOATTRIB, 0, bf_write *, IRecipientFilter *, int, const char *);
ds@2400: #else
dvander@592: SH_DECL_HOOK2(IVEngineServer, UserMessageBegin, SH_NOATTRIB, 0, bf_write *, IRecipientFilter *, int);
ds@2400: #endif
dvander@592: SH_DECL_HOOK0_void(IVEngineServer, MessageEnd, SH_NOATTRIB, 0);
skamonkey@3743: #endif // ==SE_CSGO
dvander@592: 
skamonkey@3743: UserMessages::UserMessages()
skamonkey@3743: #ifndef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	: m_InterceptBuffer(m_pBase, 2500)
dvander@592: {
dvander@592: 	m_Names = sm_trie_create();
skamonkey@3743: #else
skamonkey@3743: 	: m_InterceptBuffer(NULL)
skamonkey@3743: {
skamonkey@3743: #endif
dvander@592: 	m_HookCount = 0;
dvander@592: 	m_InExec = false;
dvander@592: 	m_InHook = false;
dvander@592: 	m_CurFlags = 0;
dvander@592: 	m_CurId = INVALID_MESSAGE_ID;
dvander@592: }
dvander@592: 
dvander@616: UserMessages::~UserMessages()
dvander@592: {
skamonkey@3743: #ifndef USE_PROTOBUF_USERMESSAGES
dvander@592: 	sm_trie_destroy(m_Names);
skamonkey@3743: #endif
faluco@641: 
faluco@641: 	CStack<ListenerInfo *>::iterator iter;
faluco@641: 	for (iter=m_FreeListeners.begin(); iter!=m_FreeListeners.end(); iter++)
faluco@641: 	{
faluco@641: 		delete (*iter);
faluco@641: 	}
faluco@641: 	m_FreeListeners.popall();
dvander@592: }
dvander@592: 
ds@765: void UserMessages::OnSourceModStartup(bool late)
ds@765: {
skamonkey@3743: #ifndef USE_PROTOBUF_USERMESSAGES
ds@765: 	/* -1 means SourceMM was unable to get the user message list */
ds@765: 	m_FallbackSearch = (g_SMAPI->GetUserMessageCount() == -1);
skamonkey@3743: #endif
ds@765: }
ds@765: 
dvander@616: void UserMessages::OnSourceModAllInitialized()
dvander@592: {
dvander@592: 	g_ShareSys.AddInterface(NULL, this);
dvander@592: }
dvander@592: 
dvander@616: void UserMessages::OnSourceModAllShutdown()
dvander@592: {
dvander@592: 	if (m_HookCount)
dvander@592: 	{
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, SendUserMessage, engine, SH_MEMBER(this, &UserMessages::OnSendUserMessage_Pre), false);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, SendUserMessage, engine, SH_MEMBER(this, &UserMessages::OnSendUserMessage_Post), true);
skamonkey@3743: #else
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, UserMessageBegin, engine, SH_MEMBER(this, &UserMessages::OnStartMessage_Pre), false);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, UserMessageBegin, engine, SH_MEMBER(this, &UserMessages::OnStartMessage_Post), true);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, MessageEnd, engine, SH_MEMBER(this, &UserMessages::OnMessageEnd_Pre), false);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, MessageEnd, engine, SH_MEMBER(this, &UserMessages::OnMessageEnd_Post), true);
skamonkey@3743: #endif
dvander@592: 	}
dvander@592: 	m_HookCount = 0;
dvander@592: }
dvander@592: 
dvander@616: int UserMessages::GetMessageIndex(const char *msg)
dvander@592: {
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: 	// Can split this per engine and/or game later
skamonkey@3743: 	return g_Cstrike15UsermessageHelpers.GetIndex(msg);
skamonkey@3743: #else
dvander@592: 	int msgid;
ds@698: 
dvander@592: 	if (!sm_trie_retrieve(m_Names, msg, reinterpret_cast<void **>(&msgid)))
dvander@592: 	{
ds@765: 		if (m_FallbackSearch)
ds@765: 		{
ds@765: 			char msgbuf[64];
ds@765: 			int size;
ds@765: 			msgid = 0;
ds@765: 
ds@765: 			while (gamedll->GetUserMessageInfo(msgid, msgbuf, sizeof(msgbuf), size))
ds@765: 			{
ds@765: 				if (strcmp(msgbuf, msg) == 0)
ds@765: 				{
ds@765: 					sm_trie_insert(m_Names, msg, reinterpret_cast<void *>(msgid));
ds@765: 					return msgid;
ds@765: 				}
ds@765: 				msgid++;
ds@765: 			}
ds@765: 		}
ds@765: 
ds@698: 		msgid = g_SMAPI->FindUserMessage(msg);
dvander@592: 
ds@698: 		if (msgid != INVALID_MESSAGE_ID)
dvander@592: 		{
ds@698: 			sm_trie_insert(m_Names, msg, reinterpret_cast<void *>(msgid));
dvander@592: 		}
dvander@592: 	}
dvander@592: 
dvander@592: 	return msgid;
skamonkey@3743: #endif
dvander@592: }
dvander@592: 
ds@765: bool UserMessages::GetMessageName(int msgid, char *buffer, size_t maxlength) const
ds@765: {
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: 	const char *pszName = g_Cstrike15UsermessageHelpers.GetName(msgid);
skamonkey@3743: 	if (!pszName)
skamonkey@3743: 		return false;
skamonkey@3743: 
skamonkey@3743: 	strncopy(buffer, pszName, maxlength);
skamonkey@3743: 	return true;
skamonkey@3743: #else
ds@765: 	if (m_FallbackSearch)
ds@765: 	{
ds@765: 		int size;
ds@765: 		return gamedll->GetUserMessageInfo(msgid, buffer, maxlength, size);
ds@765: 	}
ds@766: 
ds@765: 	const char *msg = g_SMAPI->GetUserMessage(msgid);
ds@765: 
ds@765: 	if (msg)
ds@765: 	{
ds@765: 		strncopy(buffer, msg, maxlength);
ds@765: 		return true;
ds@765: 	}
ds@765: 
ds@765: 	return false;
skamonkey@3743: #endif
ds@765: }
ds@765: 
skamonkey@3743: bf_write *UserMessages::StartBitBufMessage(int msg_id, const cell_t players[], unsigned int playersNum, int flags)
dvander@592: {
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return NULL;
skamonkey@3743: #else
dvander@592: 	bf_write *buffer;
faluco@593: 
faluco@593: 	if (m_InExec || m_InHook)
dvander@592: 	{
dvander@592: 		return NULL;
dvander@592: 	}
dvander@592: 	if (msg_id < 0 || msg_id >= 255)
dvander@592: 	{
dvander@592: 		return NULL;
dvander@592: 	}
dvander@592: 
faluco@593: 	m_CellRecFilter.Initialize(players, playersNum);
dvander@592: 
dvander@592: 	m_CurFlags = flags;
dvander@592: 	if (m_CurFlags & USERMSG_INITMSG)
dvander@592: 	{
faluco@593: 		m_CellRecFilter.SetToInit(true);
dvander@592: 	}
dvander@592: 	if (m_CurFlags & USERMSG_RELIABLE)
dvander@592: 	{
faluco@593: 		m_CellRecFilter.SetToReliable(true);
dvander@592: 	}
dvander@592: 
dvander@592: 	m_InExec = true;
dvander@592: 
faluco@1250: 	if (m_CurFlags & USERMSG_BLOCKHOOKS)
dvander@592: 	{
ds@3099: #if SOURCE_ENGINE >= SE_LEFT4DEAD
ds@2400: 		buffer = ENGINE_CALL(UserMessageBegin)(static_cast<IRecipientFilter *>(&m_CellRecFilter), msg_id, g_SMAPI->GetUserMessage(msg_id));
ds@2400: #else
faluco@1250: 		buffer = ENGINE_CALL(UserMessageBegin)(static_cast<IRecipientFilter *>(&m_CellRecFilter), msg_id);
ds@2400: #endif
faluco@1250: 	} else {
ds@3099: #if SOURCE_ENGINE >= SE_LEFT4DEAD
ds@2400: 		buffer = engine->UserMessageBegin(static_cast<IRecipientFilter *>(&m_CellRecFilter), msg_id, g_SMAPI->GetUserMessage(msg_id));
ds@2400: #else
dvander@592: 		buffer = engine->UserMessageBegin(static_cast<IRecipientFilter *>(&m_CellRecFilter), msg_id);
ds@2400: #endif
dvander@592: 	}
dvander@592: 
dvander@592: 	return buffer;
skamonkey@3743: #endif // USE_PROTOBUF_USERMESSAGES
skamonkey@3743: }
skamonkey@3743: 
skamonkey@3743: google::protobuf::Message *UserMessages::StartProtobufMessage(int msg_id, const cell_t players[], unsigned int playersNum, int flags)
skamonkey@3743: {
skamonkey@3743: #ifndef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return NULL;
skamonkey@3743: #else
skamonkey@3743: 	protobuf::Message *buffer;
skamonkey@3743: 
skamonkey@3743: 	if (m_InExec || m_InHook)
skamonkey@3743: 	{
skamonkey@3743: 		return NULL;
skamonkey@3743: 	}
skamonkey@3743: 	if (msg_id < 0 || msg_id >= 255)
skamonkey@3743: 	{
skamonkey@3743: 		return NULL;
skamonkey@3743: 	}
skamonkey@3743: 
skamonkey@3743: 	m_CurId = msg_id;
skamonkey@3743: 	m_CellRecFilter.Initialize(players, playersNum);
skamonkey@3743: 
skamonkey@3743: 	m_CurFlags = flags;
skamonkey@3743: 	if (m_CurFlags & USERMSG_INITMSG)
skamonkey@3743: 	{
skamonkey@3743: 		m_CellRecFilter.SetToInit(true);
skamonkey@3743: 	}
skamonkey@3743: 	if (m_CurFlags & USERMSG_RELIABLE)
skamonkey@3743: 	{
skamonkey@3743: 		m_CellRecFilter.SetToReliable(true);
skamonkey@3743: 	}
skamonkey@3743: 
skamonkey@3743: 	m_InExec = true;
skamonkey@3743: 
skamonkey@3743: 	if (m_CurFlags & USERMSG_BLOCKHOOKS)
skamonkey@3743: 	{
skamonkey@3743: 		// direct message creation, return buffer "from engine". keep track
skamonkey@3743: 		m_FakeEngineBuffer = g_Cstrike15UsermessageHelpers.GetPrototype(msg_id)->New();
skamonkey@3743: 		buffer = m_FakeEngineBuffer;
skamonkey@3743: 	} else {
skamonkey@3757: 		char messageName[32];
skamonkey@3757: 		if (!GetMessageName(msg_id, messageName, sizeof(messageName)))
skamonkey@3757: 		{
skamonkey@3757: 			m_InExec = false;
skamonkey@3757: 			return NULL;
skamonkey@3757: 		}
skamonkey@3757: 
skamonkey@3757: 		protobuf::Message *msg = OnStartMessage_Pre(static_cast<IRecipientFilter *>(&m_CellRecFilter), msg_id, messageName);
skamonkey@3743: 		switch (m_FakeMetaRes)
skamonkey@3743: 		{
skamonkey@3743: 		case MRES_IGNORED:
skamonkey@3743: 		case MRES_HANDLED:
skamonkey@3743: 			m_FakeEngineBuffer = g_Cstrike15UsermessageHelpers.GetPrototype(msg_id)->New();
skamonkey@3743: 			buffer = m_FakeEngineBuffer;
skamonkey@3743: 			break;		
skamonkey@3743: 
skamonkey@3743: 		case MRES_OVERRIDE:
skamonkey@3743: 			m_FakeEngineBuffer = g_Cstrike15UsermessageHelpers.GetPrototype(msg_id)->New();
skamonkey@3743: 		// fallthrough
skamonkey@3743: 		case MRES_SUPERCEDE:
skamonkey@3743: 			buffer = msg;
skamonkey@3743: 			break;
skamonkey@3743: 		}
skamonkey@3743: 		
skamonkey@3757: 		OnStartMessage_Post(static_cast<IRecipientFilter *>(&m_CellRecFilter), msg_id, messageName);
skamonkey@3743: 	}
skamonkey@3743: 
skamonkey@3743: 	return buffer;
skamonkey@3743: #endif // USE_PROTOBUF_USERMESSAGES
dvander@592: }
dvander@592: 
dvander@616: bool UserMessages::EndMessage()
dvander@592: {
dvander@592: 	if (!m_InExec)
dvander@592: 	{
dvander@592: 		return false;
dvander@592: 	}
dvander@592: 
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: 	if (m_CurFlags & USERMSG_BLOCKHOOKS)
skamonkey@3743: 	{
skamonkey@3743: 		ENGINE_CALL(SendUserMessage)(static_cast<IRecipientFilter &>(m_CellRecFilter), m_CurId, *m_FakeEngineBuffer);
skamonkey@3743: 		delete m_FakeEngineBuffer;
skamonkey@3743: 		m_FakeEngineBuffer = NULL;
skamonkey@3743: 	} else {
skamonkey@3743: 		OnMessageEnd_Pre();
skamonkey@3743: 
skamonkey@3743: 		switch (m_FakeMetaRes)
skamonkey@3743: 		{
skamonkey@3743: 		case MRES_IGNORED:
skamonkey@3743: 		case MRES_HANDLED:
skamonkey@3743: 		case MRES_OVERRIDE:
skamonkey@3743: 			engine->SendUserMessage(static_cast<IRecipientFilter &>(m_CellRecFilter), m_CurId, *m_FakeEngineBuffer);
skamonkey@3743: 			delete m_FakeEngineBuffer;
skamonkey@3743: 			m_FakeEngineBuffer = NULL;
skamonkey@3743: 			break;
skamonkey@3743: 		//case MRES_SUPERCEDE:
skamonkey@3743: 		}
skamonkey@3743: 
skamonkey@3743: 		OnMessageEnd_Post();
skamonkey@3743: 	}
skamonkey@3743: #else
faluco@1250: 	if (m_CurFlags & USERMSG_BLOCKHOOKS)
dvander@592: 	{
faluco@1250: 		ENGINE_CALL(MessageEnd)();
faluco@1250: 	} else {
dvander@592: 		engine->MessageEnd();
dvander@592: 	}
skamonkey@3743: #endif // SE_CSGO
dvander@592: 
dvander@592: 	m_InExec = false;
dvander@592: 	m_CurFlags = 0;
faluco@593: 	m_CellRecFilter.Reset();
dvander@592: 
dvander@592: 	return true;
dvander@592: }
dvander@592: 
skamonkey@3743: UserMessageType UserMessages::GetUserMessageType() const
skamonkey@3743: {
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return UM_Protobuf;
skamonkey@3743: #else
skamonkey@3743: 	return UM_BitBuf;
skamonkey@3743: #endif
skamonkey@3743: }
skamonkey@3743: 
dvander@2636: bool UserMessages::HookUserMessage2(int msg_id,
dvander@2636: 									IUserMessageListener *pListener,
dvander@2636: 									bool intercept)
dvander@2636: {
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return InternalHook(msg_id, (IProtobufUserMessageListener *)pListener, intercept, true);
skamonkey@3743: #else
skamonkey@3743: 	return InternalHook(msg_id, (IBitBufUserMessageListener *)pListener, intercept, true);
skamonkey@3743: #endif
dvander@2636: }
dvander@2636: 
dvander@2636: bool UserMessages::UnhookUserMessage2(int msg_id,
dvander@2636: 									  IUserMessageListener *pListener,
dvander@2636: 									  bool intercept)
dvander@2636: {
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return InternalUnhook(msg_id, (IProtobufUserMessageListener *)pListener, intercept, true);
skamonkey@3743: #else
skamonkey@3743: 	return InternalUnhook(msg_id, (IBitBufUserMessageListener *)pListener, intercept, true);
skamonkey@3743: #endif
dvander@2636: }
dvander@2636: 
dvander@616: bool UserMessages::HookUserMessage(int msg_id, IUserMessageListener *pListener, bool intercept)
dvander@592: {
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return InternalHook(msg_id, (IProtobufUserMessageListener *)pListener, intercept, false);
skamonkey@3743: #else
skamonkey@3743: 	return InternalHook(msg_id, (IBitBufUserMessageListener *)pListener, intercept, false);
skamonkey@3743: #endif
dvander@2636: }
dvander@2636: 
dvander@2636: bool UserMessages::UnhookUserMessage(int msg_id, IUserMessageListener *pListener, bool intercept)
dvander@2636: {	
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 	return InternalUnhook(msg_id, (IProtobufUserMessageListener *)pListener, intercept, false);
skamonkey@3743: #else
skamonkey@3743: 	return InternalUnhook(msg_id, (IBitBufUserMessageListener *)pListener, intercept, false);
skamonkey@3743: #endif
dvander@2636: }
dvander@2636: 
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: bool UserMessages::InternalHook(int msg_id, IProtobufUserMessageListener *pListener, bool intercept, bool isNew)
skamonkey@3743: #else
skamonkey@3743: bool UserMessages::InternalHook(int msg_id, IBitBufUserMessageListener *pListener, bool intercept, bool isNew)
skamonkey@3743: #endif
dvander@2636: {
dvander@592: 	if (msg_id < 0 || msg_id >= 255)
dvander@592: 	{
dvander@592: 		return false;
dvander@592: 	}
dvander@592: 
faluco@593: 	ListenerInfo *pInfo;
faluco@593: 	if (m_FreeListeners.empty())
faluco@593: 	{
faluco@593: 		pInfo = new ListenerInfo;
faluco@593: 	} else {
faluco@593: 		pInfo = m_FreeListeners.front();
faluco@593: 		m_FreeListeners.pop();
faluco@593: 	}
faluco@593: 
faluco@593: 	pInfo->Callback = pListener;
faluco@593: 	pInfo->IsHooked = false;
faluco@593: 	pInfo->KillMe = false;
dvander@2636: 	pInfo->IsNew = isNew;
faluco@593: 
dvander@592: 	if (!m_HookCount++)
dvander@592: 	{
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
kyle@3819: 		SH_ADD_HOOK(IVEngineServer, SendUserMessage, engine, SH_MEMBER(this, &UserMessages::OnSendUserMessage_Pre), false);
kyle@3819: 		SH_ADD_HOOK(IVEngineServer, SendUserMessage, engine, SH_MEMBER(this, &UserMessages::OnSendUserMessage_Post), true);
skamonkey@3743: #else
kyle@3819: 		SH_ADD_HOOK(IVEngineServer, UserMessageBegin, engine, SH_MEMBER(this, &UserMessages::OnStartMessage_Pre), false);
kyle@3819: 		SH_ADD_HOOK(IVEngineServer, UserMessageBegin, engine, SH_MEMBER(this, &UserMessages::OnStartMessage_Post), true);
kyle@3819: 		SH_ADD_HOOK(IVEngineServer, MessageEnd, engine, SH_MEMBER(this, &UserMessages::OnMessageEnd_Pre), false);
kyle@3819: 		SH_ADD_HOOK(IVEngineServer, MessageEnd, engine, SH_MEMBER(this, &UserMessages::OnMessageEnd_Post), true);
skamonkey@3743: #endif
dvander@592: 	}
dvander@592: 
dvander@592: 	if (intercept)
dvander@592: 	{
faluco@593: 		m_msgIntercepts[msg_id].push_back(pInfo);
dvander@592: 	} else {
faluco@593: 		m_msgHooks[msg_id].push_back(pInfo);
dvander@592: 	}
dvander@592: 
dvander@592: 	return true;
dvander@592: }
dvander@592: 
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: bool UserMessages::InternalUnhook(int msg_id, IProtobufUserMessageListener *pListener, bool intercept, bool isNew)
skamonkey@3743: #else
skamonkey@3743: bool UserMessages::InternalUnhook(int msg_id, IBitBufUserMessageListener *pListener, bool intercept, bool isNew)
skamonkey@3743: #endif
dvander@2636: {
faluco@593: 	MsgList *pList;
dvander@592: 	MsgIter iter;
faluco@593: 	ListenerInfo *pInfo;
dvander@592: 	bool deleted = false;
dvander@592: 
dvander@592: 	if (msg_id < 0 || msg_id >= 255)
dvander@592: 	{
dvander@592: 		return false;
dvander@592: 	}
dvander@592: 
faluco@593: 	pList = (intercept) ? &m_msgIntercepts[msg_id] : &m_msgHooks[msg_id];
faluco@593: 	for (iter=pList->begin(); iter!=pList->end(); iter++)
dvander@592: 	{
faluco@593: 		pInfo = (*iter);
dvander@2636: 		if (pInfo->Callback == pListener && pInfo->IsNew == isNew)
dvander@592: 		{
faluco@593: 			if (pInfo->IsHooked)
faluco@593: 			{
faluco@593: 				pInfo->KillMe = true;
faluco@593: 				return true;
faluco@593: 			}
faluco@593: 			pList->erase(iter);
dvander@592: 			deleted = true;
dvander@592: 			break;
dvander@592: 		}
dvander@592: 	}
dvander@592: 
faluco@593: 	if (deleted)
faluco@593: 	{
faluco@593: 		_DecRefCounter();
faluco@593: 	}
faluco@593: 
faluco@593: 	return deleted;
faluco@593: }
faluco@593: 
dvander@616: void UserMessages::_DecRefCounter()
faluco@593: {
faluco@593: 	if (--m_HookCount == 0)
dvander@592: 	{
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, SendUserMessage, engine, SH_MEMBER(this, &UserMessages::OnSendUserMessage_Pre), false);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, SendUserMessage, engine, SH_MEMBER(this, &UserMessages::OnSendUserMessage_Post), true);
skamonkey@3743: #else
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, UserMessageBegin, engine, SH_MEMBER(this, &UserMessages::OnStartMessage_Pre), false);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, UserMessageBegin, engine, SH_MEMBER(this, &UserMessages::OnStartMessage_Post), true);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, MessageEnd, engine, SH_MEMBER(this, &UserMessages::OnMessageEnd_Pre), false);
kyle@3819: 		SH_REMOVE_HOOK(IVEngineServer, MessageEnd, engine, SH_MEMBER(this, &UserMessages::OnMessageEnd_Post), true);
skamonkey@3743: #endif
dvander@592: 	}
dvander@592: }
dvander@592: 
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: void UserMessages::OnSendUserMessage_Pre(IRecipientFilter &filter, int msg_type, const protobuf::Message &msg)
skamonkey@3743: {
skamonkey@3743: 	OnStartMessage_Pre(&filter, msg_type, g_Cstrike15UsermessageHelpers.GetName(msg_type));
skamonkey@3743: 	if (m_FakeMetaRes == MRES_SUPERCEDE)
skamonkey@3743: 	{
skamonkey@3778: 		int size = msg.ByteSize();
skamonkey@3778: 		uint8 *data = (uint8 *)stackalloc(size);
skamonkey@3778: 		msg.SerializePartialToArray(data, size);
skamonkey@3786: 		m_InterceptBuffer->ParsePartialFromArray(data, size);
skamonkey@3743: 	}
skamonkey@3743: 	else
skamonkey@3743: 	{
skamonkey@3759: 		m_FakeEngineBuffer = &const_cast<protobuf::Message &>(msg);
skamonkey@3743: 	}
skamonkey@3743: 
skamonkey@3786: 	OnStartMessage_Post(&filter, msg_type, g_Cstrike15UsermessageHelpers.GetName(msg_type));
skamonkey@3786: 
skamonkey@3743: 	OnMessageEnd_Pre();
skamonkey@3743: 	if (m_FakeMetaRes == MRES_SUPERCEDE)
skamonkey@3743: 		RETURN_META(MRES_SUPERCEDE);
skamonkey@3743: 
skamonkey@3743: 	RETURN_META(MRES_IGNORED);
skamonkey@3743: }
skamonkey@3743: 
skamonkey@3743: void UserMessages::OnSendUserMessage_Post(IRecipientFilter &filter, int msg_type, const protobuf::Message &msg)
skamonkey@3743: {
skamonkey@3743: 	OnMessageEnd_Post();
skamonkey@3743: 	RETURN_META(MRES_IGNORED);
skamonkey@3743: }
skamonkey@3743: #endif
skamonkey@3743: 
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: #define UM_RETURN_META_VALUE(res, val) \
skamonkey@3743: 	m_FakeMetaRes = res;               \
skamonkey@3743: 	return val;
skamonkey@3743: 
skamonkey@3743: #define UM_RETURN_META(res)            \
skamonkey@3743: 	m_FakeMetaRes = res;               \
skamonkey@3743: 	return;
skamonkey@3743: #else
skamonkey@3743: #define UM_RETURN_META_VALUE(res, val) \
skamonkey@3743: 	RETURN_META_VALUE(res, val)
skamonkey@3743: 
skamonkey@3743: #define UM_RETURN_META(res)            \
skamonkey@3743: 	RETURN_META(res)
skamonkey@3743: #endif
skamonkey@3743: 
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: protobuf::Message *UserMessages::OnStartMessage_Pre(IRecipientFilter *filter, int msg_type, const char *msg_name)
skamonkey@3743: #elif SOURCE_ENGINE >= SE_LEFT4DEAD
ds@2400: bf_write *UserMessages::OnStartMessage_Pre(IRecipientFilter *filter, int msg_type, const char *msg_name)
ds@2400: #else
dvander@616: bf_write *UserMessages::OnStartMessage_Pre(IRecipientFilter *filter, int msg_type)
ds@2400: #endif
dvander@592: {
dvander@592: 	bool is_intercept_empty = m_msgIntercepts[msg_type].empty();
dvander@592: 	bool is_hook_empty = m_msgHooks[msg_type].empty();
dvander@592: 
faluco@593: 	if ((is_intercept_empty && is_hook_empty)
faluco@1250: 		|| (m_InExec && (m_CurFlags & USERMSG_BLOCKHOOKS)))
dvander@592: 	{
dvander@592: 		m_InHook = false;
skamonkey@3743: 		UM_RETURN_META_VALUE(MRES_IGNORED, NULL);
dvander@592: 	}
dvander@592: 
dvander@592: 	m_CurId = msg_type;
dvander@592: 	m_CurRecFilter = filter;
dvander@592: 	m_InHook = true;
faluco@597: 	m_BlockEndPost = false;
dvander@592: 
dvander@592: 	if (!is_intercept_empty)
dvander@592: 	{
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 		if (m_InterceptBuffer)
skamonkey@3743: 			delete m_InterceptBuffer;
skamonkey@3743: 		m_InterceptBuffer = g_Cstrike15UsermessageHelpers.GetPrototype(msg_type)->New();
skamonkey@3743: 		UM_RETURN_META_VALUE(MRES_SUPERCEDE, m_InterceptBuffer);
skamonkey@3743: #else
faluco@593: 		m_InterceptBuffer.Reset();
skamonkey@3743: 		UM_RETURN_META_VALUE(MRES_SUPERCEDE, &m_InterceptBuffer);
skamonkey@3743: #endif
dvander@592: 	}
dvander@592: 
skamonkey@3743: 	UM_RETURN_META_VALUE(MRES_IGNORED, NULL);
dvander@592: }
dvander@592: 
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: protobuf::Message *UserMessages::OnStartMessage_Post(IRecipientFilter *filter, int msg_type, const char *msg_name)
skamonkey@3743: #elif SOURCE_ENGINE >= SE_LEFT4DEAD
ds@2400: bf_write *UserMessages::OnStartMessage_Post(IRecipientFilter *filter, int msg_type, const char *msg_name)
ds@2400: #else
dvander@616: bf_write *UserMessages::OnStartMessage_Post(IRecipientFilter *filter, int msg_type)
ds@2400: #endif
dvander@592: {
dvander@592: 	if (!m_InHook)
dvander@592: 	{
skamonkey@3743: 		UM_RETURN_META_VALUE(MRES_IGNORED, NULL);
dvander@592: 	}
dvander@592: 
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3786: 	if (m_FakeMetaRes == MRES_SUPERCEDE)
skamonkey@3786: 		m_OrigBuffer = m_InterceptBuffer;
skamonkey@3786: 	else
skamonkey@3786: 		m_OrigBuffer = m_FakeEngineBuffer;
skamonkey@3743: #else
dvander@592: 	m_OrigBuffer = META_RESULT_ORIG_RET(bf_write *);
skamonkey@3743: #endif
dvander@592: 
skamonkey@3743: 	UM_RETURN_META_VALUE(MRES_IGNORED, NULL);
dvander@592: }
dvander@592: 
dvander@616: void UserMessages::OnMessageEnd_Post()
dvander@592: {
dvander@2636: 	if (!m_InHook)
dvander@592: 	{
skamonkey@3743: 		UM_RETURN_META(MRES_IGNORED);
dvander@592: 	}
dvander@592: 
faluco@593: 	MsgList *pList;
dvander@592: 	MsgIter iter;
faluco@593: 	ListenerInfo *pInfo;
faluco@593: 
pred@2577: 	m_InHook = false;
pred@2577: 
faluco@593: 	pList = &m_msgIntercepts[m_CurId];
faluco@593: 	for (iter=pList->begin(); iter!=pList->end(); )
faluco@593: 	{
faluco@593: 		pInfo = (*iter);
dvander@2636: 		if (m_BlockEndPost && !pInfo->IsNew)
dvander@2636: 		{
dvander@2636: 			continue;
dvander@2636: 		}
faluco@593: 		pInfo->IsHooked = true;
faluco@593: 		pInfo->Callback->OnUserMessageSent(m_CurId);
dvander@2636: 		if (pInfo->IsNew)
dvander@2636: 		{
dvander@2636: 			pInfo->Callback->OnPostUserMessage(m_CurId, !m_BlockEndPost);
dvander@2636: 		}
dvander@592: 
faluco@593: 		if (pInfo->KillMe)
faluco@593: 		{
faluco@593: 			iter = pList->erase(iter);
faluco@593: 			m_FreeListeners.push(pInfo);
faluco@593: 			_DecRefCounter();
faluco@593: 			continue;
faluco@593: 		}
faluco@593: 
faluco@593: 		pInfo->IsHooked = false;
faluco@593: 		iter++;
dvander@592: 	}
dvander@592: 
faluco@593: 	pList = &m_msgHooks[m_CurId];
faluco@594: 	for (iter=pList->begin(); iter!=pList->end(); )
dvander@592: 	{
faluco@593: 		pInfo = (*iter);
dvander@2636: 		if (m_BlockEndPost && !pInfo->IsNew)
dvander@2636: 		{
dvander@2636: 			continue;
dvander@2636: 		}
faluco@594: 		pInfo->IsHooked = true;
faluco@593: 		pInfo->Callback->OnUserMessageSent(m_CurId);
dvander@2636: 		if (pInfo->IsNew)
dvander@2636: 		{
dvander@2636: 			pInfo->Callback->OnPostUserMessage(m_CurId, !m_BlockEndPost);
dvander@2636: 		}
faluco@593: 
faluco@593: 		if (pInfo->KillMe)
faluco@593: 		{
faluco@593: 			iter = pList->erase(iter);
faluco@593: 			m_FreeListeners.push(pInfo);
faluco@593: 			_DecRefCounter();
faluco@593: 			continue;
faluco@593: 		}
faluco@593: 
faluco@593: 		pInfo->IsHooked = false;
faluco@593: 		iter++;
dvander@592: 	}
dvander@592: }
dvander@592: 
dvander@616: void UserMessages::OnMessageEnd_Pre()
dvander@592: {
dvander@592: 	if (!m_InHook)
dvander@592: 	{
skamonkey@3743: 		UM_RETURN_META(MRES_IGNORED);
dvander@592: 	}
dvander@592: 
faluco@593: 	MsgList *pList;
dvander@592: 	MsgIter iter;
faluco@593: 	ListenerInfo *pInfo;
faluco@593: 
dvander@592: 	ResultType res;
dvander@592: 	bool intercepted = false;
dvander@592: 	bool handled = false;
dvander@592: 
faluco@593: 	pList = &m_msgIntercepts[m_CurId];
faluco@593: 	for (iter=pList->begin(); iter!=pList->end(); )
dvander@592: 	{
faluco@593: 		pInfo = (*iter);
faluco@593: 		pInfo->IsHooked = true;
skamonkey@3743: #ifdef USE_PROTOBUF_USERMESSAGES
skamonkey@3743: 		res = pInfo->Callback->InterceptUserMessage(m_CurId, m_InterceptBuffer, m_CurRecFilter);
skamonkey@3743: #else
faluco@593: 		res = pInfo->Callback->InterceptUserMessage(m_CurId, &m_InterceptBuffer, m_CurRecFilter);
skamonkey@3743: #endif
faluco@593: 
faluco@597: 		intercepted = true;
faluco@597: 
faluco@593: 		switch (res)
dvander@592: 		{
faluco@593: 		case Pl_Stop:
faluco@593: 			{
faluco@593: 				if (pInfo->KillMe)
faluco@593: 				{
faluco@593: 					pList->erase(iter);
faluco@593: 					m_FreeListeners.push(pInfo);
faluco@593: 					_DecRefCounter();
faluco@593: 					goto supercede;
faluco@593: 				}
faluco@593: 				pInfo->IsHooked = false;
faluco@593: 				goto supercede;
faluco@593: 			}
faluco@593: 		case Pl_Handled:
faluco@593: 			{
faluco@593: 				handled = true;
faluco@593: 				if (pInfo->KillMe)
faluco@593: 				{
faluco@593: 					iter = pList->erase(iter);
faluco@593: 					m_FreeListeners.push(pInfo);
faluco@593: 					_DecRefCounter();
faluco@593: 					continue;
faluco@593: 				}
faluco@593: 				break;
faluco@593: 			}
faluco@593: 		default:
faluco@593: 			{
faluco@593: 				if (pInfo->KillMe)
faluco@593: 				{
faluco@593: 					iter = pList->erase(iter);
faluco@593: 					m_FreeListeners.push(pInfo);
faluco@593: 					_DecRefCounter();
faluco@593: 					continue;
faluco@593: 				}
faluco@597: 				break;
faluco@593: 			}
dvander@592: 		}
faluco@593: 		pInfo->IsHooked = false;
faluco@593: 		iter++;
dvander@592: 	}
dvander@592: 
dvander@2734: 	if (!handled && intercepted)
dvander@592: 	{
skamonkey@3743: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3743: 		ENGINE_CALL(SendUserMessage)(static_cast<IRecipientFilter &>(*m_CurRecFilter), m_CurId, *m_InterceptBuffer);
skamonkey@3743: #else
faluco@593: 		bf_write *engine_bfw;
ds@3099: #if SOURCE_ENGINE >= SE_LEFT4DEAD
ds@2400: 		engine_bfw = ENGINE_CALL(UserMessageBegin)(m_CurRecFilter, m_CurId, g_SMAPI->GetUserMessage(m_CurId));
ds@2400: #else
dvander@592: 		engine_bfw = ENGINE_CALL(UserMessageBegin)(m_CurRecFilter, m_CurId);
ds@2400: #endif
dvander@592: 		m_ReadBuffer.StartReading(m_InterceptBuffer.GetBasePointer(), m_InterceptBuffer.GetNumBytesWritten());
dvander@592: 		engine_bfw->WriteBitsFromBuffer(&m_ReadBuffer, m_InterceptBuffer.GetNumBitsWritten());
dvander@592: 		ENGINE_CALL(MessageEnd)();
skamonkey@3743: #endif // SE_CSGO
dvander@592: 	}
dvander@592: 
dvander@592: 	{
skamonkey@3779: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3778: 		int size = m_OrigBuffer->ByteSize();
skamonkey@3778: 		uint8 *data = (uint8 *)stackalloc(size);
skamonkey@3778: 		m_OrigBuffer->SerializePartialToArray(data, size);
skamonkey@3778: 		protobuf::Message *pTempMsg = g_Cstrike15UsermessageHelpers.GetPrototype(m_CurId)->New();
skamonkey@3786: 		pTempMsg->ParsePartialFromArray(data, size);
skamonkey@3779: #else
skamonkey@3779: 		bf_write *pTempMsg = m_OrigBuffer;
skamonkey@3779: #endif
faluco@593: 
skamonkey@3778: 		pList = &m_msgHooks[m_CurId];
skamonkey@3778: 		for (iter=pList->begin(); iter!=pList->end(); )
faluco@593: 		{
skamonkey@3778: 			pInfo = (*iter);
skamonkey@3778: 			pInfo->IsHooked = true;
skamonkey@3778: 			pInfo->Callback->OnUserMessage(m_CurId, pTempMsg, m_CurRecFilter);
skamonkey@3778: 
skamonkey@3778: 			if (pInfo->KillMe)
skamonkey@3778: 			{
skamonkey@3778: 				iter = pList->erase(iter);
skamonkey@3778: 				m_FreeListeners.push(pInfo);
skamonkey@3778: 				_DecRefCounter();
skamonkey@3778: 				continue;
skamonkey@3778: 			}
skamonkey@3778: 
skamonkey@3778: 			pInfo->IsHooked = false;
skamonkey@3778: 			iter++;
faluco@593: 		}
faluco@593: 
skamonkey@3779: #if SOURCE_ENGINE == SE_CSGO
skamonkey@3778: 		delete pTempMsg;
skamonkey@3779: #endif
dvander@592: 	}
dvander@592: 
skamonkey@3743: 	UM_RETURN_META((intercepted) ? MRES_SUPERCEDE : MRES_IGNORED);
dvander@592: supercede:
faluco@597: 	m_BlockEndPost = true;
skamonkey@3743: 	UM_RETURN_META(MRES_SUPERCEDE);
dvander@592: }