Siege only clans and ally can fight

Index: /trunk/L2_GameServer_CT1.5/config/siege.properties
===================================================================
--- /trunk/L2_GameServer_CT1.5/config/siege.properties  (revision 3589)
+++ /trunk/L2_GameServer_CT1.5/config/siege.properties  (revision 3835)
@@ -24,4 +24,7 @@
 #Respawn time penalty for loosing each Control tower
 CTLossPenalty=20000
+
+#Allow only registered clans/allys to fight each other on siege ground during sieges
+OnlyRegistered = True

 #Caste Artefacts and Control Towers spawns
Index: /trunk/L2_GameServer_CT1.5/src/main/java/net/sf/l2j/gameserver/model/actor/instance/L2PcInstance.java
===================================================================
--- /trunk/L2_GameServer_CT1.5/src/main/java/net/sf/l2j/gameserver/model/actor/instance/L2PcInstance.java   (revision 3831)
+++ /trunk/L2_GameServer_CT1.5/src/main/java/net/sf/l2j/gameserver/model/actor/instance/L2PcInstance.java   (revision 3835)
@@ -87,4 +87,5 @@
 import net.sf.l2j.gameserver.model.BlockList;
 import net.sf.l2j.gameserver.model.CursedWeapon;
+import net.sf.l2j.gameserver.model.L2SiegeClan;
 import net.sf.l2j.gameserver.model.FishData;
 import net.sf.l2j.gameserver.model.ForceBuff;
@@ -3409,4 +3410,68 @@
    }

+   private boolean canBeTargetedByAtSiege(L2PcInstance player)
+   {
+       Siege siege = SiegeManager.getInstance().getSiege(this);
+       if (siege != null && siege.getIsInProgress())
+       {
+           L2Clan selfClan = getClan();
+           L2Clan oppClan = player.getClan();
+           if (selfClan != null && oppClan != null)
+           {
+               boolean self = false;
+               for (L2SiegeClan clan : siege.getAttackerClans())
+               {
+                   L2Clan cl = ClanTable.getInstance().getClan(clan.getClanId());
+
+                   if (cl == selfClan || cl.getAllyId() == getAllyId())
+                   {
+                       self = true;
+                       break;
+                   }
+               }
+
+               for (L2SiegeClan clan : siege.getDefenderClans())
+               {
+                   L2Clan cl = ClanTable.getInstance().getClan(clan.getClanId());
+
+                   if (cl == selfClan || cl.getAllyId() == getAllyId())
+                   {
+                       self = true;
+                       break;
+                   }
+               }
+
+               boolean opp = false;
+               for (L2SiegeClan clan : siege.getAttackerClans())
+               {
+                   L2Clan cl = ClanTable.getInstance().getClan(clan.getClanId());
+
+                   if (cl == oppClan || cl.getAllyId() == player.getAllyId())
+                   {
+                       opp = true;
+                       break;
+                   }
+               }
+
+               for (L2SiegeClan clan : siege.getDefenderClans())
+               {
+                   L2Clan cl = ClanTable.getInstance().getClan(clan.getClanId());
+
+                   if (cl == oppClan || cl.getAllyId() == player.getAllyId())
+                   {
+                       opp = true;
+                       break;
+                   }
+               }
+
+               return self && opp;
+           }
+
+           return false;
+       }
+
+       return true;
+   }
+
    /**
     * Manage actions when a player click on this L2PcInstance.<BR><BR>
@@ -3441,4 +3506,14 @@
        }

+       if(Config.SIEGE_ONLY_REGISTERED)
+       {
+           if (!canBeTargetedByAtSiege(player))
+           {
+               player.sendMessage("Player interaction disabled during sieges.");
+               player.sendPacket(ActionFailed.STATIC_PACKET);
+               return;
+           }
+       }
+
        if ((TvT._started && !Config.TVT_ALLOW_INTERFERENCE) || (CTF._started && !Config.CTF_ALLOW_INTERFERENCE) || (DM._started && !Config.DM_ALLOW_INTERFERENCE))
        {
Index: /trunk/L2_GameServer_CT1.5/src/main/java/net/sf/l2j/Config.java
===================================================================
--- /trunk/L2_GameServer_CT1.5/src/main/java/net/sf/l2j/Config.java (revision 3831)
+++ /trunk/L2_GameServer_CT1.5/src/main/java/net/sf/l2j/Config.java (revision 3835)
@@ -1876,4 +1876,6 @@
    public static int           SIEGE_CLAN_MIN_LEVEL;
    public static int           SIEGE_LENGTH_MINUTES;
+
+   public static boolean       SIEGE_ONLY_REGISTERED;

    public static void loadSiegeConfig()
@@ -1896,4 +1898,6 @@
            SIEGE_CLAN_MIN_LEVEL = Integer.parseInt(siegeSettings.getProperty("SiegeClanMinLevel", "5"));
            SIEGE_LENGTH_MINUTES = Integer.parseInt(siegeSettings.getProperty("SiegeLength", "120"));
+
+           SIEGE_ONLY_REGISTERED = Boolean.parseBoolean(siegeSettings.getProperty("OnlyRegistered", "true"));
        }
        catch (Exception e)