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refactor(HandleAuctionListOwnerItems): prevent crash (#2684)

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This commit is contained in:
Stefano Borzì
2020-02-24 08:40:02 +01:00
committed by GitHub
parent ed243d6911
commit 9e307455a8
4 changed files with 16 additions and 14 deletions
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22
src/server/game/Handlers/AuctionHouseHandler.cpp
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@@ -218,7 +218,7 @@ void WorldSession::HandleAuctionSellItem(WorldPacket & recvData)
SendAuctionCommandResult(0, AUCTION_SELL_ITEM, ERR_AUCTION_DATABASE_ERROR);
return;
}
// check if there are 2 identical guids, in this case user is most likely cheating
for (uint32 i = 0; i < itemsCount - 1; ++i)
{
@@ -646,6 +646,13 @@ void WorldSession::HandleAuctionListBidderItems(WorldPacket & recvData)
//this void sends player info about his auctions
void WorldSession::HandleAuctionListOwnerItems(WorldPacket & recvData)
{
// prevent crash caused by malformed packet
uint64 guid;
uint32 listfrom;
recvData >> guid;
recvData >> listfrom;
// pussywizard:
const uint32 delay = 4500;
const uint32 now = World::GetGameTimeMS();
@@ -656,10 +663,11 @@ void WorldSession::HandleAuctionListOwnerItems(WorldPacket & recvData)
diff = delay;
_lastAuctionListOwnerItemsMSTime = now + delay; // set longest possible here, actual exectuing will change this to getMSTime of that moment
_player->m_Events.AddEvent(new AuctionListOwnerItemsDelayEvent(recvData, _player->GetGUID(), true), _player->m_Events.CalculateTime(delay-diff));
_player->m_Events.AddEvent(new AuctionListOwnerItemsDelayEvent(guid, _player->GetGUID(), true), _player->m_Events.CalculateTime(delay-diff));
}
void WorldSession::HandleAuctionListOwnerItemsEvent(WorldPacket & recvData)
void WorldSession::HandleAuctionListOwnerItemsEvent(uint64 creatureGuid)
{
#if defined(ENABLE_EXTRAS) && defined(ENABLE_EXTRA_LOGS)
sLog->outDebug(LOG_FILTER_NETWORKIO, "WORLD: Received CMSG_AUCTION_LIST_OWNER_ITEMS");
@@ -667,13 +675,7 @@ void WorldSession::HandleAuctionListOwnerItemsEvent(WorldPacket & recvData)
_lastAuctionListOwnerItemsMSTime = World::GetGameTimeMS(); // pussywizard
uint32 listfrom;
uint64 guid;
recvData >> guid;
recvData >> listfrom; // not used in fact (this list not have page control in client)
Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_AUCTIONEER);
Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(creatureGuid, UNIT_NPC_FLAG_AUCTIONEER);
if (!creature)
{
#if defined(ENABLE_EXTRAS) && defined(ENABLE_EXTRA_LOGS)

2
src/server/game/Misc/AsyncAuctionListing.cpp
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@@ -16,7 +16,7 @@ ACE_Thread_Mutex AsyncAuctionListingMgr::auctionListingTempLock;
bool AuctionListOwnerItemsDelayEvent::Execute(uint64 /*e_time*/, uint32 /*p_time*/)
{
if (Player* plr = ObjectAccessor::FindPlayer(playerguid))
plr->GetSession()->HandleAuctionListOwnerItemsEvent(data);
plr->GetSession()->HandleAuctionListOwnerItemsEvent(creatureGuid);
return true;
}

4
src/server/game/Misc/AsyncAuctionListing.h
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@@ -8,7 +8,7 @@
class AuctionListOwnerItemsDelayEvent : public BasicEvent
{
public:
AuctionListOwnerItemsDelayEvent(WorldPacket& d, uint64 guid, bool o) : data(d), playerguid(guid), owner(o) {}
AuctionListOwnerItemsDelayEvent(uint64 _creatureGuid, uint64 guid, bool o) : creatureGuid(_creatureGuid), playerguid(guid), owner(o) {}
virtual ~AuctionListOwnerItemsDelayEvent() {}
virtual bool Execute(uint64 e_time, uint32 p_time);
@@ -16,7 +16,7 @@ class AuctionListOwnerItemsDelayEvent : public BasicEvent
bool getOwner() { return owner; }
private:
WorldPacket data;
uint64 creatureGuid;
uint64 playerguid;
bool owner;
};

2
src/server/game/Server/WorldSession.h
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@@ -606,7 +606,7 @@ class WorldSession
void HandleAuctionSellItem(WorldPacket& recvData);
void HandleAuctionRemoveItem(WorldPacket& recvData);
void HandleAuctionListOwnerItems(WorldPacket& recvData);
void HandleAuctionListOwnerItemsEvent(WorldPacket & recvData);
void HandleAuctionListOwnerItemsEvent(uint64 creatureGuid);
void HandleAuctionPlaceBid(WorldPacket& recvData);
void HandleAuctionListPendingSales(WorldPacket& recvData);