[6982] Implemented gmlevel-based command security

This is just a simple check if target's gmlevel is lesser
than the caller's one. If it is, an error is returned.
Offline checks for some commands are included.

That in simple words means no further .goname to a gmlevel 3 player
from a gmlevel 2 or 1 account, so gmlevel 3 can work in peace.

Signed-off-by: freghar <compmancz@gmail.com>

src/game/Level2.cpp

@@ -668,6 +668,10 @@ bool ChatHandler::HandleModifyRepCommand(const char * args)
         return false;
     }
 
+    // check online security
+    if (HasLowerSecurity(target, 0))
+        return false;
+
     char* factionTxt = extractKeyFromLink((char*)args,"Hfaction");
     if(!factionTxt)
         return false;
@@ -1239,6 +1243,11 @@ bool ChatHandler::HandleDeMorphCommand(const char* /*args*/)
     if(!target)
         target = m_session->GetPlayer();
 
+
+    // check online security
+    else if (target->GetTypeId() == TYPEID_PLAYER && HasLowerSecurity((Player*)target, 0))
+        return false;
+
     target->DeMorph();
 
     return true;
@@ -1632,6 +1641,10 @@ bool ChatHandler::HandleMorphCommand(const char* args)
     if(!target)
         target = m_session->GetPlayer();
 
+    // check online security
+    else if (target->GetTypeId() == TYPEID_PLAYER && HasLowerSecurity((Player*)target, 0))
+        return false;
+
     target->SetDisplayId(display_id);
 
     return true;
@@ -1700,6 +1713,10 @@ bool ChatHandler::HandleKickPlayerCommand(const char *args)
             return false;
         }
 
+        // check online security
+        if (HasLowerSecurity(player, 0))
+            return false;
+
         player->GetSession()->KickPlayer();
     }
     else
@@ -1719,6 +1736,11 @@ bool ChatHandler::HandleKickPlayerCommand(const char *args)
             return false;
         }
 
+        // check online security
+	Player* player = ObjectAccessor::Instance().FindPlayerByName(name.c_str());
+        if (player && HasLowerSecurity(player, 0))
+            return false;
+
         if(sWorld.KickPlayer(name))
         {
             PSendSysMessage(LANG_COMMAND_KICKMESSAGE,name.c_str());
@@ -1789,6 +1811,10 @@ bool ChatHandler::HandlePInfoCommand(const char* args)
     // get additional information from Player object
     if(target)
     {
+        // check online security
+        if (HasLowerSecurity(target, 0))
+            return false;
+
         targetGUID = target->GetGUID();
         name = target->GetName();                           // re-read for case getSelectedPlayer() target
         accId = target->GetSession()->GetAccountId();
@@ -1800,6 +1826,10 @@ bool ChatHandler::HandlePInfoCommand(const char* args)
     // get additional information from DB
     else
     {
+        // check offline security
+        if (HasLowerSecurity(NULL, targetGUID))
+            return false;
+
         //                                                     0
         QueryResult *result = CharacterDatabase.PQuery("SELECT totaltime FROM characters WHERE guid = '%u'", GUID_LOPART(targetGUID));
         if (!result)
@@ -3343,12 +3373,20 @@ bool ChatHandler::HandleRenameCommand(const char* args)
 
     if(target)
     {
+        // check online security
+        if (HasLowerSecurity(target, 0))
+            return false;
+
         PSendSysMessage(LANG_RENAME_PLAYER, target->GetName());
         target->SetAtLoginFlag(AT_LOGIN_RENAME);
         CharacterDatabase.PExecute("UPDATE characters SET at_login = at_login | '1' WHERE guid = '%u'", target->GetGUIDLow());
     }
     else
     {
+        // check offline security
+        if (HasLowerSecurity(NULL, targetGUID))
+            return false;
+
         PSendSysMessage(LANG_RENAME_PLAYER_GUID, oldname.c_str(), GUID_LOPART(targetGUID));
         CharacterDatabase.PExecute("UPDATE characters SET at_login = at_login | '1' WHERE guid = '%u'", GUID_LOPART(targetGUID));
     }
@@ -3517,6 +3555,10 @@ bool ChatHandler::HandleAddHonorCommand(const char* args)
         return false;
     }
 
+    // check online security
+    if (HasLowerSecurity(target, 0))
+        return false;
+
     uint32 amount = (uint32)atoi(args);
     target->RewardHonor(NULL, 1, amount);
     return true;
@@ -3532,6 +3574,10 @@ bool ChatHandler::HandleHonorAddKillCommand(const char* /*args*/)
         return false;
     }
 
+    // check online security
+    if (target->GetTypeId() == TYPEID_PLAYER && HasLowerSecurity((Player*)target, 0))
+        return false;
+
     m_session->GetPlayer()->RewardHonor(target, 1);
     return true;
 }
@@ -3546,6 +3592,10 @@ bool ChatHandler::HandleUpdateHonorFieldsCommand(const char* /*args*/)
         return false;
     }
 
+    // check online security
+    if (HasLowerSecurity(target, 0))
+        return false;
+
     target->UpdateHonorFields();
     return true;
 }
@@ -3788,6 +3838,10 @@ bool ChatHandler::HandleCombatStopCommand(const char* args)
             player = m_session->GetPlayer();
     }
 
+    // check online security
+    if (HasLowerSecurity(player, 0))
+        return false;
+
     player->CombatStop();
     player->getHostilRefManager().deleteReferences();
     return true;
@@ -4025,6 +4079,10 @@ bool ChatHandler::HandleRepairitemsCommand(const char* /*args*/)
         return false;
     }
 
+    // check online security
+    if (HasLowerSecurity(target, 0))
+        return false;
+
     // Repair items
     target->DurabilityRepairAll(false, 0, false);
 
@@ -4048,6 +4106,10 @@ bool ChatHandler::HandleWaterwalkCommand(const char* args)
         return false;
     }
 
+    // check online security
+    if (HasLowerSecurity(player, 0))
+        return false;
+
     if (strncmp(args, "on", 3) == 0)
         player->SetMovement(MOVE_WATER_WALK);               // ON
     else if (strncmp(args, "off", 4) == 0)