From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: NONPLAYT <76615486+NONPLAYT@users.noreply.github.com>
Date: Mon, 24 Jun 2024 14:05:44 +0300
Subject: [PATCH] Remove vanilla username check


diff --git a/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java b/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
index 8849862b45ccbbc635a1c316e9870bca81e55c04..85b7c7742a2cc678aec317487fc811b9680e87d6 100644
--- a/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
+++ b/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
@@ -295,7 +295,7 @@ public class CraftPlayerProfile implements PlayerProfile, SharedPlayerProfile {
 
     private static GameProfile createAuthLibProfile(UUID uniqueId, String name) {
         Preconditions.checkArgument(name == null || name.length() <= 16, "Name cannot be longer than 16 characters");
-        Preconditions.checkArgument(name == null || StringUtil.isValidPlayerName(name), "The name of the profile contains invalid characters: %s", name);
+        Preconditions.checkArgument(name == null || space.bxteam.divinemc.configuration.DivineConfig.removeVanillaUsernameCheck || StringUtil.isValidPlayerName(name), "The name of the profile contains invalid characters: %s", name); // DivineMC - Remove vanilla username check
         return new GameProfile(
             uniqueId != null ? uniqueId : Util.NIL_UUID,
             name != null ? name : ""
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index 16069b9cbf6c7679c28a2e9a54e77d23cd10e541..1b33f08b1d4730b28f61435488a1e1c04051c8dc 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -174,7 +174,8 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
     public void handleHello(ServerboundHelloPacket packet) {
         Validate.validState(this.state == ServerLoginPacketListenerImpl.State.HELLO, "Unexpected hello packet", new Object[0]);
         // Paper start - Validate usernames
-        if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()
+        if (!space.bxteam.divinemc.configuration.DivineConfig.removeVanillaUsernameCheck // DivineMC - Remove vanilla username check
+            && io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()
             && io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.performUsernameValidation
             && !this.iKnowThisMayNotBeTheBestIdeaButPleaseDisableUsernameValidation) {
             Validate.validState(StringUtil.isReasonablePlayerName(packet.name()), "Invalid characters in username", new Object[0]);
diff --git a/src/main/java/space/bxteam/divinemc/configuration/DivineConfig.java b/src/main/java/space/bxteam/divinemc/configuration/DivineConfig.java
index 261a55a4a5171f4ceb57fda8532bc1f795dc30ed..028589d94e04828686ff09e6a6b1a8fc71f054a0 100644
--- a/src/main/java/space/bxteam/divinemc/configuration/DivineConfig.java
+++ b/src/main/java/space/bxteam/divinemc/configuration/DivineConfig.java
@@ -156,8 +156,10 @@ public class DivineConfig {
     }
 
     public static boolean disableNonEditableSignWarning = true;
+    public static boolean removeVanillaUsernameCheck = false;
     private static void miscSettings() {
         disableNonEditableSignWarning = getBoolean("settings.misc.disable-non-editable-sign-warning", disableNonEditableSignWarning);
+        removeVanillaUsernameCheck = getBoolean("settings.misc.remove-vanilla-username-check", removeVanillaUsernameCheck);
     }
 
     public static boolean biomeManagerOptimization = true;