fix(Core/GameObject): Check faction for quest activation (#27008)

Co-authored-by: sogladev <[email protected]>

src/server/game/Entities/GameObject/GameObject.cpp

@@ -29,6 +29,7 @@
 #include "ObjectMgr.h"
 #include "OutdoorPvPMgr.h"
 #include "PoolMgr.h"
+#include "ReputationMgr.h"
 #include "ScriptMgr.h"
 #include "SpellMgr.h"
 #include "Transport.h"
@@ -1316,6 +1317,21 @@ bool GameObject::ActivateToQuest(Player* target) const
     if (!GetGOInfo()->IsGameObjectForQuests())
         return false;
 
+    FactionTemplateEntry const* gameObjectFaction =
+        sFactionTemplateStore.LookupEntry(GetUInt32Value(GAMEOBJECT_FACTION));
+    FactionTemplateEntry const* playerFaction = target->GetFactionTemplateEntry();
+    if (gameObjectFaction && playerFaction &&
+        (gameObjectFaction->IsHostileToAlliancePlayers() || gameObjectFaction->IsHostileToHordePlayers()))
+    {
+        // Faction templates 101/102 have no ourMask, so check hostility from the gameobject to the player.
+        bool isHostile = gameObjectFaction->IsHostileTo(*playerFaction);
+        if (ReputationRank const* forcedRank = target->GetReputationMgr().GetForcedRankIfAny(gameObjectFaction))
+            isHostile = *forcedRank <= REP_HOSTILE;
+
+        if (isHostile)
+            return false;
+    }
+
     switch (GetGoType())
     {
         case GAMEOBJECT_TYPE_QUESTGIVER: