Scripts/Commands: mod xp command

Closes #13476

(cherry picked from commit 3e03e546d3106bf8930e30ab9c2008b0e696e125)

Conflicts:
	sql/base/auth_database.sql
	src/server/scripts/Commands/cs_modify.cpp

2 files changed, 33 insertions, 0 deletions

diff --git a/src/server/game/Accounts/RBAC.h b/src/server/game/Accounts/RBAC.h
index d398efaeef2..650bd998028 100644
--- a/src/server/game/Accounts/RBAC.h
+++ b/src/server/game/Accounts/RBAC.h
@@ -701,6 +701,7 @@ enum RBACPermissions
     RBAC_PERM_COMMAND_INSTANCE_SET_BOSS_STATE                = 795,
     RBAC_PERM_COMMAND_INSTANCE_GET_BOSS_STATE                = 796,
     RBAC_PERM_COMMAND_PVPSTATS                               = 797,
+    RBAC_PERM_COMMAND_MODIFY_XP                              = 798,
 
     // custom permissions 1000+
     RBAC_PERM_MAX
diff --git a/src/server/scripts/Commands/cs_modify.cpp b/src/server/scripts/Commands/cs_modify.cpp
index 24283dca7ac..ee3b7ce124b 100644
--- a/src/server/scripts/Commands/cs_modify.cpp
+++ b/src/server/scripts/Commands/cs_modify.cpp
@@ -71,6 +71,7 @@ public:
             { "spell",        rbac::RBAC_PERM_COMMAND_MODIFY_SPELL,        false, &HandleModifySpellCommand,         "", NULL },
             { "standstate",   rbac::RBAC_PERM_COMMAND_MODIFY_STANDSTATE,   false, &HandleModifyStandStateCommand,    "", NULL },
             { "talentpoints", rbac::RBAC_PERM_COMMAND_MODIFY_TALENTPOINTS, false, &HandleModifyTalentCommand,        "", NULL },
+            { "xp",           rbac::RBAC_PERM_COMMAND_MODIFY_XP,           false, &HandleModifyXPCommand,            "", NULL },
             { NULL,           0,                                     false, NULL,                              "", NULL }
         };
         static ChatCommand commandTable[] =
@@ -1399,6 +1400,37 @@ public:
 
         return true;
     }
+
+    // mod xp command
+    static bool HandleModifyXPCommand(ChatHandler *handler, const char* args)
+    {
+        if (!*args)
+            return false;
+
+        int32 xp = atoi((char*)args);
+
+        if (xp < 1)
+        {
+            handler->SendSysMessage(LANG_BAD_VALUE);
+            handler->SetSentErrorMessage(true);
+            return false;
+        }
+
+        Player* target = handler->getSelectedPlayerOrSelf();
+        if (!target)
+        {
+            handler->SendSysMessage(LANG_NO_CHAR_SELECTED);
+            handler->SetSentErrorMessage(true);
+            return false;
+        }
+
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
+            return false;
+
+        // we can run the command
+        target->GiveXP(xp, nullptr);
+        return true;
+    }
 };
 
 void AddSC_modify_commandscript()