refactor(Core/Player): Improve Channel.RestrictedLfg handling (#21145)

src/server/game/ArenaSpectator/ArenaSpectator.cpp

@@ -85,7 +85,7 @@ bool ArenaSpectator::HandleSpectatorSpectateCommand(ChatHandler* handler, std::s
     if (player->IsInCombat())
         errors.push_back("Can't be in combat.");
 
-    if (player->isUsingLfg())
+    if (player->IsUsingLfg())
         errors.push_back("Can't spectate while using LFG system.");
 
     if (player->InBattlegroundQueue())

src/server/game/Chat/Channels/Channel.cpp

@@ -185,10 +185,7 @@ void Channel::JoinChannel(Player* player, std::string const& pass)
         return;
     }
 
-    if (HasFlag(CHANNEL_FLAG_LFG) &&
-            sWorld->getBoolConfig(CONFIG_RESTRICTED_LFG_CHANNEL) &&
-            AccountMgr::IsPlayerAccount(player->GetSession()->GetSecurity()) &&
-            player->GetGroup())
+    if (IsLFG() && sWorld->getBoolConfig(CONFIG_RESTRICTED_LFG_CHANNEL) && !player->IsUsingLfg())
     {
         WorldPacket data;
         MakeNotInLfg(&data);

src/server/game/Chat/Channels/Channel.h

@@ -181,7 +181,7 @@ public:
     [[nodiscard]] uint32 GetChannelDBId() const { return _channelDBId; }
     [[nodiscard]] bool IsConstant() const { return _channelId != 0; }
     [[nodiscard]] bool IsAnnounce() const { return _announce; }
-    [[nodiscard]] bool IsLFG() const { return GetFlags() & CHANNEL_FLAG_LFG; }
+    [[nodiscard]] bool IsLFG() const { return HasFlag(CHANNEL_FLAG_LFG); }
     [[nodiscard]] std::string const& GetPassword() const { return _password; }
     void SetPassword(std::string const& npassword) { _password = npassword; }
     [[nodiscard]] uint32 GetNumPlayers() const { return playersStore.size(); }

src/server/game/Entities/Player/Player.cpp

@@ -13100,7 +13100,7 @@ PartyResult Player::CanUninviteFromGroup(ObjectGuid targetPlayerGUID) const
     return ERR_PARTY_RESULT_OK;
 }
 
-bool Player::isUsingLfg()
+bool Player::IsUsingLfg()
 {
     return sLFGMgr->GetState(GetGUID()) != lfg::LFG_STATE_NONE;
 }

src/server/game/Entities/Player/Player.h

@@ -2071,6 +2071,7 @@ public:
     void LeftChannel(Channel* c);
     void CleanupChannels();
     void ClearChannelWatch();
+    void UpdateLFGChannel();
     void UpdateLocalChannels(uint32 newZone);
 
     void UpdateDefense();
@@ -2406,7 +2407,7 @@ public:
     void SetAtLoginFlag(AtLoginFlags f) { m_atLoginFlags |= f; }
     void RemoveAtLoginFlag(AtLoginFlags flags, bool persist = false);
 
-    bool isUsingLfg();
+    bool IsUsingLfg();
     bool inRandomLfgDungeon();
 
     typedef std::set<uint32> DFQuestsDoneList;

src/server/game/Entities/Player/PlayerUpdates.cpp

@@ -461,6 +461,44 @@ void Player::UpdateNextMailTimeAndUnreads()
     }
 }
 
+void Player::UpdateLFGChannel()
+{
+    if (!sWorld->getBoolConfig(CONFIG_RESTRICTED_LFG_CHANNEL))
+        return;
+
+    ChannelMgr* cMgr = ChannelMgr::forTeam(GetTeamId());
+    if (!cMgr)
+        return;
+
+    ChatChannelsEntry const* cce = sChatChannelsStore.LookupEntry(26); /*LookingForGroup*/
+    Channel* cLFG = cMgr->GetJoinChannel(cce->pattern[m_session->GetSessionDbcLocale()], cce->ChannelID);
+    if (!cLFG)
+        return;
+
+    Channel* cUsed = nullptr;
+    for (Channel* channel : m_channels)
+        if (channel && channel->GetChannelId() == cce->ChannelID)
+        {
+            cUsed = cLFG;
+            break;
+        }
+
+    if (IsUsingLfg())
+    {
+        if (cUsed == cLFG)
+            return;
+
+        cLFG->JoinChannel(this, "");
+    }
+    else
+    {
+        if (cLFG != cUsed)
+            return;
+
+        cLFG->LeaveChannel(this, true);
+    }
+}
+
 void Player::UpdateLocalChannels(uint32 newZone)
 {
     // pussywizard: mutex needed (tc changed opcode to THREAD UNSAFE)

src/server/game/Handlers/ChannelHandler.cpp

@@ -47,15 +47,11 @@ void WorldSession::HandleJoinChannel(WorldPacket& recvPacket)
         return;
 
     if (channelName.size() >= 100 || !DisallowHyperlinksAndMaybeKick(channelName))
-    {
         return;
-    }
 
     if (ChannelMgr* cMgr = ChannelMgr::forTeam(GetPlayer()->GetTeamId()))
-    {
         if (Channel* channel = cMgr->GetJoinChannel(channelName, channelId))
             channel->JoinChannel(GetPlayer(), password);
-    }
 }
 
 void WorldSession::HandleLeaveChannel(WorldPacket& recvPacket)
@@ -70,10 +66,8 @@ void WorldSession::HandleLeaveChannel(WorldPacket& recvPacket)
         return;
 
     if (ChannelMgr* cMgr = ChannelMgr::forTeam(GetPlayer()->GetTeamId()))
-    {
         if (Channel* channel = cMgr->GetChannel(channelName, GetPlayer()))
             channel->LeaveChannel(GetPlayer(), true);
-    }
 }
 
 void WorldSession::HandleChannelList(WorldPacket& recvPacket)

src/server/game/Handlers/LFGHandler.cpp

@@ -71,6 +71,7 @@ void WorldSession::HandleLfgJoinOpcode(WorldPackets::LFG::LFGJoin& packet)
                  GetPlayerInfo(), packet.Roles, newDungeons.size(), packet.Comment);
 
     sLFGMgr->JoinLfg(GetPlayer(), uint8(packet.Roles), newDungeons, packet.Comment);
+    GetPlayer()->UpdateLFGChannel();
 }
 
 void WorldSession::HandleLfgLeaveOpcode(WorldPackets::LFG::LFGLeave& /*packet*/)
@@ -87,6 +88,7 @@ void WorldSession::HandleLfgLeaveOpcode(WorldPackets::LFG::LFGLeave& /*packet*/)
         sLFGMgr->LeaveLfg(sLFGMgr->GetState(guid) == lfg::LFG_STATE_RAIDBROWSER ? guid : gguid);
         sLFGMgr->LeaveAllLfgQueues(guid, true, group ? group->GetGUID() : ObjectGuid::Empty);
     }
+    GetPlayer()->UpdateLFGChannel();
 }
 
 void WorldSession::HandleLfgProposalResultOpcode(WorldPacket& recvData)

src/server/scripts/Commands/cs_misc.cpp

@@ -280,7 +280,7 @@ public:
                 break;
             }
 
-            if (plr->isUsingLfg())
+            if (plr->IsUsingLfg())
             {
                 error = 4;
                 break;