ChannelMgr.cpp

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * 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 2 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/>.
 */
 
#include "ChannelMgr.h"
#include "Channel.h"
#include "ChannelPackets.h"
#include "DatabaseEnv.h"
#include "DB2Stores.h"
#include "Log.h"
#include "Player.h"
#include "Realm.h"
#include "World.h"
#include "WorldSession.h"
 
AreaTableEntry const* ChannelMgr::SpecialLinkedArea;
 
ChannelMgr::~ChannelMgr()
{
 for (auto itr = _channels.begin(); itr != _channels.end(); ++itr)
 delete itr->second;
 
 for (auto itr = _customChannels.begin(); itr != _customChannels.end(); ++itr)
 delete itr->second;
}
 
/*static*/ void ChannelMgr::LoadFromDB()
{
 SpecialLinkedArea = sAreaTableStore.AssertEntry(3459);
 ASSERT(SpecialLinkedArea->GetFlags().HasFlag(AreaFlags::LinkedChatSpecialArea));
 
 if (!sWorld->getBoolConfig(CONFIG_PRESERVE_CUSTOM_CHANNELS))
 {
 TC_LOG_INFO("server.loading", ">> Loaded 0 custom chat channels. Custom channel saving is disabled.");
 return;
 }
 
 uint32 oldMSTime = getMSTime();
 if (uint32 days = sWorld->getIntConfig(CONFIG_PRESERVE_CUSTOM_CHANNEL_DURATION))
 {
 CharacterDatabasePreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_OLD_CHANNELS);
 stmt->setUInt32(0, days * DAY);
 CharacterDatabase.Execute(stmt);
 }
 
 QueryResult result = CharacterDatabase.Query("SELECT name, team, announce, ownership, password, bannedList FROM channels");
 if (!result)
 {
 TC_LOG_INFO("server.loading", ">> Loaded 0 custom chat channels. DB table `channels` is empty.");
 return;
 }
 
 std::vector<std::pair<std::string, uint32>> toDelete;
 uint32 count = 0;
 do
 {
 Field* fields = result->Fetch();
 std::string dbName = fields[0].GetString();
 uint32 team = fields[1].GetUInt32();
 bool dbAnnounce = fields[2].GetBool();
 bool dbOwnership = fields[3].GetBool();
 std::string dbPass = fields[4].GetString();
 std::string dbBanned = fields[5].GetString();
 
 std::wstring channelName;
 if (!Utf8toWStr(dbName, channelName))
 {
 TC_LOG_ERROR("server.loading", "Failed to load custom chat channel '{}' from database - invalid utf8 sequence? Deleted.", dbName);
 toDelete.push_back({ dbName, team });
 continue;
 }
 
 ChannelMgr* mgr = ForTeam(team);
 if (!mgr)
 {
 TC_LOG_ERROR("server.loading", "Failed to load custom chat channel '{}' from database - invalid team {}. Deleted.", dbName, team);
 toDelete.push_back({ dbName, team });
 continue;
 }
 
 Channel* channel = new Channel(mgr->CreateCustomChannelGuid(), dbName, team, dbBanned);
 channel->SetAnnounce(dbAnnounce);
 channel->SetOwnership(dbOwnership);
 channel->SetPassword(dbPass);
 mgr->_customChannels.emplace(channelName, channel);
 
 ++count;
 } while (result->NextRow());
 
 for (std::pair<std::string, uint32> const& pair : toDelete)
 {
 CharacterDatabasePreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHANNEL);
 stmt->setString(0, pair.first);
 stmt->setUInt32(1, pair.second);
 CharacterDatabase.Execute(stmt);
 }
 
 TC_LOG_INFO("server.loading", ">> Loaded {} custom chat channels in {} ms", count, GetMSTimeDiffToNow(oldMSTime));
}
 
/*static*/ ChannelMgr* ChannelMgr::ForTeam(uint32 team)
{
 static ChannelMgr allianceChannelMgr(ALLIANCE);
 static ChannelMgr hordeChannelMgr(HORDE);
 
 if (sWorld->getBoolConfig(CONFIG_ALLOW_TWO_SIDE_INTERACTION_CHANNEL))
 return &allianceChannelMgr; // cross-faction
 
 if (team == ALLIANCE)
 return &allianceChannelMgr;
 
 if (team == HORDE)
 return &hordeChannelMgr;
 
 return nullptr;
}
 
Channel* ChannelMgr::GetChannelForPlayerByNamePart(std::string const& namePart, Player* playerSearcher)
{
 std::wstring channelNamePart;
 if (!Utf8toWStr(namePart, channelNamePart))
 return nullptr;
 
 wstrToLower(channelNamePart);
 for (Channel* channel : playerSearcher->GetJoinedChannels())
 {
 std::string chanName = channel->GetName(playerSearcher->GetSession()->GetSessionDbcLocale());
 
 std::wstring channelNameW;
 if (!Utf8toWStr(chanName, channelNameW))
 continue;
 
 wstrToLower(channelNameW);
 if (!channelNameW.compare(0, channelNamePart.size(), channelNamePart))
 return channel;
 }
 
 return nullptr;
}
 
void ChannelMgr::SaveToDB()
{
 for (auto pair : _customChannels)
 pair.second->UpdateChannelInDB();
}
 
Channel* ChannelMgr::GetChannelForPlayerByGuid(ObjectGuid channelGuid, Player* playerSearcher)
{
 for (Channel* channel : playerSearcher->GetJoinedChannels())
 if (channel->GetGUID() == channelGuid)
 return channel;
 
 return nullptr;
}
 
Channel* ChannelMgr::GetSystemChannel(uint32 channelId, AreaTableEntry const* zoneEntry /* = nullptr */)
{
 ObjectGuid channelGuid = CreateBuiltinChannelGuid(channelId, zoneEntry);
 auto itr = _channels.find(channelGuid);
 if (itr != _channels.end())
 return itr->second;
 
 Channel* newChannel = new Channel(channelGuid, channelId, _team, zoneEntry);
 _channels[channelGuid] = newChannel;
 return newChannel;
}
 
Channel* ChannelMgr::CreateCustomChannel(std::string const& name)
{
 std::wstring channelName;
 if (!Utf8toWStr(name, channelName))
 return nullptr;
 
 wstrToLower(channelName);
 
 Channel*& c = _customChannels[channelName];
 if (c)
 return nullptr;
 
 Channel* newChannel = new Channel(CreateCustomChannelGuid(), name, _team);
 newChannel->SetDirty();
 
 c = newChannel;
 return newChannel;
}
 
Channel* ChannelMgr::GetCustomChannel(std::string const& name) const
{
 std::wstring channelName;
 if (!Utf8toWStr(name, channelName))
 return nullptr;
 
 wstrToLower(channelName);
 auto itr = _customChannels.find(channelName);
 if (itr != _customChannels.end())
 return itr->second;
 
 return nullptr;
}
 
Channel* ChannelMgr::GetChannel(uint32 channelId, std::string const& name, Player* player, bool notify /*= true*/, AreaTableEntry const* zoneEntry /*= nullptr*/) const
{
 Channel* result = nullptr;
 if (channelId) // builtin
 {
 auto itr = _channels.find(CreateBuiltinChannelGuid(channelId, zoneEntry));
 if (itr != _channels.end())
 result = itr->second;
 }
 else // custom
 {
 std::wstring channelName;
 if (!Utf8toWStr(name, channelName))
 return nullptr;
 
 wstrToLower(channelName);
 
 auto itr = _customChannels.find(channelName);
 if (itr != _customChannels.end())
 result = itr->second;
 }
 
 if (!result && notify)
 {
 std::string channelName = name;
 Channel::GetChannelName(channelName, channelId, player->GetSession()->GetSessionDbcLocale(), zoneEntry);
 
 SendNotOnChannelNotify(player, channelName);
 }
 
 return result;
}
 
void ChannelMgr::LeftChannel(uint32 channelId, AreaTableEntry const* zoneEntry)
{
 auto itr = _channels.find(CreateBuiltinChannelGuid(channelId, zoneEntry));
 if (itr == _channels.end())
 return;
 
 Channel* channel = itr->second;
 if (!channel->GetNumPlayers())
 {
 _channels.erase(itr);
 delete channel;
 }
}
 
void ChannelMgr::SendNotOnChannelNotify(Player const* player, std::string const& name)
{
 WorldPackets::Channel::ChannelNotify notify;
 notify.Type = CHAT_NOT_MEMBER_NOTICE;
 notify._Channel = name;
 player->SendDirectMessage(notify.Write());
}
 
ObjectGuid ChannelMgr::CreateCustomChannelGuid()
{
 return ObjectGuid::Create<HighGuid::ChatChannel>(false, false, 0, _team == ALLIANCE ? 3 : 5, _guidGenerator.Generate());
}
 
ObjectGuid ChannelMgr::CreateBuiltinChannelGuid(uint32 channelId, AreaTableEntry const* zoneEntry /*= nullptr*/) const
{
 ChatChannelsEntry const* channelEntry = sChatChannelsStore.AssertEntry(channelId);
 uint32 zoneId = 0;
 if (zoneEntry && channelEntry->GetFlags().HasFlag(ChatChannelFlags::ZoneBased) && !channelEntry->GetFlags().HasFlag(ChatChannelFlags::LinkedChannel))
 zoneId = zoneEntry->ID;
 
 if (channelEntry->GetFlags().HasFlag(ChatChannelFlags::GlobalForTournament))
 if (Cfg_CategoriesEntry const* category = sCfgCategoriesStore.LookupEntry(realm.Timezone))
 if (category->GetFlags().HasFlag(CfgCategoriesFlags::Tournament))
 zoneId = 0;
 
 return ObjectGuid::Create<HighGuid::ChatChannel>(true, channelEntry->GetFlags().HasFlag(ChatChannelFlags::LinkedChannel), zoneId, _team == ALLIANCE ? 3 : 5, channelId);
}