Core/Players: Check if player can enter the instance during login before trying to add him to map

* Fixes name displaying as "Unknown"

(cherry picked from commit 45994a177c128dc83ea01b0697377f7b74b5c4ba)

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

@@ -17453,7 +17453,7 @@ bool Player::LoadFromDB(ObjectGuid guid, SQLQueryHolder *holder)
     }
     else if (map->IsDungeon()) // if map is dungeon...
     {
-        if (!((InstanceMap*)map)->CanEnter(this)) // ... and can't enter map, then look for entry point.
+        if (!((InstanceMap*)map)->CanEnter(this) || !CheckInstanceLoginValid(map)) // ... and can't enter map, then look for entry point.
         {
             areaTrigger = sObjectMgr->GetGoBackTrigger(mapId);
             check = true;
@@ -17480,6 +17480,7 @@ bool Player::LoadFromDB(ObjectGuid guid, SQLQueryHolder *holder)
         {
             TC_LOG_ERROR("entities.player", "Player %s %s Map: %u, X: %f, Y: %f, Z: %f, O: %f. Areatrigger not found.",
                 m_name.c_str(), guid.ToString().c_str(), mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
+            RelocateToHomebind();
             map = NULL;
         }
     }
@@ -19010,15 +19011,12 @@ bool Player::Satisfy(AccessRequirement const* ar, uint32 target_map, bool report
     return true;
 }
 
-bool Player::CheckInstanceLoginValid()
+bool Player::CheckInstanceLoginValid(Map* map)
 {
-    if (!FindMap())
-        return false;
-
-    if (!GetMap()->IsDungeon() || IsGameMaster())
+    if (!map->IsDungeon() || IsGameMaster())
         return true;
 
-    if (GetMap()->IsRaid())
+    if (map->IsRaid())
     {
         // cannot be in raid instance without a group
         if (!GetGroup())
@@ -19027,12 +19025,12 @@ bool Player::CheckInstanceLoginValid()
     else
     {
         // cannot be in normal instance without a group and more players than 1 in instance
-        if (!GetGroup() && GetMap()->GetPlayersCountExceptGMs() > 1)
+        if (!GetGroup() && map->GetPlayersCountExceptGMs() > 1)
             return false;
     }
 
     // do checks for satisfy accessreqs, instance full, encounter in progress (raid), perm bind group != perm bind player
-    return sMapMgr->CanPlayerEnter(GetMap()->GetId(), this, true);
+    return sMapMgr->CanPlayerEnter(map->GetId(), this, true);
 }
 
 bool Player::CheckInstanceCount(uint32 instanceId) const

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

@@ -2198,7 +2198,7 @@ class Player : public Unit, public GridObject<Player>
         void SendSavedInstances();
         static void ConvertInstancesToGroup(Player* player, Group* group, bool switchLeader);
         bool Satisfy(AccessRequirement const* ar, uint32 target_map, bool report = false);
-        bool CheckInstanceLoginValid();
+        bool CheckInstanceLoginValid(Map* map);
         bool CheckInstanceCount(uint32 instanceId) const;
         void AddInstanceEnterTime(uint32 instanceId, time_t enterTime);
 

src/server/game/Handlers/CharacterHandler.cpp

@@ -887,7 +887,7 @@ void WorldSession::HandlePlayerLogin(LoginQueryHolder* holder)
         }
     }
 
-    if (!pCurrChar->GetMap()->AddPlayerToMap(pCurrChar) || !pCurrChar->CheckInstanceLoginValid())
+    if (!pCurrChar->GetMap()->AddPlayerToMap(pCurrChar))
     {
         AreaTrigger const* at = sObjectMgr->GetGoBackTrigger(pCurrChar->GetMapId());
         if (at)