From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dreeam <61569423+Dreeam-qwq@users.noreply.github.com>
Date: Wed, 12 Oct 2022 14:36:58 -0400
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 cbe2789f8a055550dd7840a7bed980efd65eb9a1..a903ff5303a07bbe310c0d6aaff5b7894e2d2de2 100644
--- a/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
+++ b/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
@@ -271,7 +271,7 @@ 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 || org.dreeam.leaf.config.modules.misc.RemoveVanillaUsernameCheck.enabled || StringUtil.isValidPlayerName(name), "The name of the profile contains invalid characters: %s", name); // Leaf - 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 72cf1372a7e685b3ff4cc852c3d38f7d4f8fc5ad..cccf95f68b40b5fc1ac533e9d0d7d2c1c6334df8 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -182,7 +182,8 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
         // Gale start - JettPack - reduce array allocations
         Validate.validState(this.state == ServerLoginPacketListenerImpl.State.HELLO, "Unexpected hello packet", me.titaniumtown.ArrayConstants.emptyObjectArray);
         // Paper start - Validate usernames
-        if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()
+        if (!org.dreeam.leaf.config.modules.misc.RemoveVanillaUsernameCheck.enabled // Leaf - 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", me.titaniumtown.ArrayConstants.emptyObjectArray);
diff --git a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
index 0121c90dd7f57be5f484f970f78747a92a734611..86223b0c5ec585080ae90569fb2b52223bb7d6e6 100644
--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
@@ -65,7 +65,7 @@ public final class CraftPlayerProfile implements PlayerProfile, com.destroystoky
     public CraftPlayerProfile(UUID uniqueId, String name) {
         Preconditions.checkArgument((uniqueId != null) || !StringUtils.isBlank(name), "uniqueId is null or name is blank");
         Preconditions.checkArgument(name == null || name.length() <= 16, "The name of the profile is longer than 16 characters"); // Paper - Validate
-        Preconditions.checkArgument(name == null || net.minecraft.util.StringUtil.isValidPlayerName(name), "The name of the profile contains invalid characters: %s", name); // Paper - Validate
+        Preconditions.checkArgument(name == null || org.dreeam.leaf.config.modules.misc.RemoveVanillaUsernameCheck.enabled || net.minecraft.util.StringUtil.isValidPlayerName(name), "The name of the profile contains invalid characters: %s", name); // Paper - Validate // Leaf - Remove Vanilla username check
         this.uniqueId = (uniqueId == null) ? Util.NIL_UUID : uniqueId;
         this.name = (name == null) ? "" : name;
     }
diff --git a/src/main/java/org/dreeam/leaf/config/modules/misc/RemoveVanillaUsernameCheck.java b/src/main/java/org/dreeam/leaf/config/modules/misc/RemoveVanillaUsernameCheck.java
new file mode 100644
index 0000000000000000000000000000000000000000..ecae8c5d114b2d0510b61c78e3fc705b61f6d126
--- /dev/null
+++ b/src/main/java/org/dreeam/leaf/config/modules/misc/RemoveVanillaUsernameCheck.java
@@ -0,0 +1,20 @@
+package org.dreeam.leaf.config.modules.misc;
+
+import org.dreeam.leaf.config.ConfigModules;
+import org.dreeam.leaf.config.EnumConfigCategory;
+
+public class RemoveVanillaUsernameCheck extends ConfigModules {
+
+    public String getBasePath() {
+        return EnumConfigCategory.MISC.getBaseKeyName() + ".remove-vanilla-username-check";
+    }
+
+    public static boolean enabled = true;
+
+    @Override
+    public void onLoaded() {
+        enabled = config.getBoolean(getBasePath(), enabled, """
+                Remove Vanilla username check
+                allowing all characters as username""");
+    }
+}