.cpp

Quest const* quest = sObjectMgr->GetQuestTemplate(packet.QuestID)
  
if (!quest)
    return;

Object* object = ObjectAccessor::GetObjectByTypeMask(*_player, packet.QuestGiverGUID, TYPEMASK_UNIT | TYPEMASK_GAMEOBJECT);
if (!object)
    return;

if ((quest->HasFlag(QUEST_FLAGS_AUTOCOMPLETE) && !object->GetTypeId() != TYPEID_PLAYER) && !object->hasInvolvedQuest(packet.QuestID))
    return;

// some kind of WPE protection
if (!quest->HasFlag(QUEST_FLAGS_AUTOCOMPLETE) && !_player->CanInteractWithQuestGiver(object))
    return;