Leaf/leaf-server/paper-patches/features/0061-Configurable-vanilla-username-check.patch

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] Configurable 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 db43329d57144471d0c9ce0eed92d2f1bd05f120..d65bde85ecae29104c5c34380f164252df9e4515 100644
--- a/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
+++ b/src/main/java/com/destroystokyo/paper/profile/CraftPlayerProfile.java
@@ -62,6 +62,14 @@ public class CraftPlayerProfile implements PlayerProfile, SharedPlayerProfile {
         copyProfileProperties(resolvableProfile.gameProfile(), this.profile);
     }
 
+    // Leaf start - Configurable vanilla username check
+    public CraftPlayerProfile(UUID id, String name, boolean useCustomValidation) {
+        this.profile = createAuthLibProfile(id, name, useCustomValidation);
+        this.emptyName = name == null;
+        this.emptyUUID = id == null;
+    }
+    // Leaf end - Configurable vanilla username check
+
     @Override
     public boolean hasProperty(String property) {
         return profile.getProperties().containsKey(property);
@@ -195,6 +203,14 @@ public class CraftPlayerProfile implements PlayerProfile, SharedPlayerProfile {
         return clone;
     }
 
+    // Leaf start - Configurable vanilla username check
+    public CraftPlayerProfile cloneCustom() {
+        CraftPlayerProfile clone = new CraftPlayerProfile(this.getId(), this.getName(), true);
+        clone.setProperties(getProperties());
+        return clone;
+    }
+    // Leaf end - Configurable vanilla username check
+
     @Override
     public boolean isComplete() {
         return this.getId() != null && StringUtils.isNotBlank(this.getName());
@@ -369,15 +385,21 @@ public class CraftPlayerProfile implements PlayerProfile, SharedPlayerProfile {
         }
     }
 
-    private static GameProfile createAuthLibProfile(UUID uniqueId, String name) {
+    // Leaf start - Configurable vanilla username check
+    private static GameProfile createAuthLibProfile(UUID uniqueId, String name, boolean useCustomValidation) {
         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 || (useCustomValidation ? StringUtil.isReasonablePlayerName(name) : StringUtil.isValidPlayerName(name)), "The name of the profile contains invalid characters: %s", name);
         return new GameProfile(
             uniqueId != null ? uniqueId : Util.NIL_UUID,
             name != null ? name : ""
         );
     }
 
+    private static GameProfile createAuthLibProfile(UUID uniqueId, String name) {
+        return createAuthLibProfile(uniqueId, name, false);
+    }
+    // Leaf end - Configurable vanilla username check
+
     private static ProfileProperty toBukkit(Property property) {
         return new ProfileProperty(property.name(), property.value(), property.signature());
     }
@@ -401,6 +423,13 @@ public class CraftPlayerProfile implements PlayerProfile, SharedPlayerProfile {
         return asAuthlib(craft.clone());
     }
 
+    // Leaf start - Configurable vanilla username check
+    public static GameProfile asAuthlibCopyCustomValidation(PlayerProfile profile) {
+        CraftPlayerProfile craft = ((CraftPlayerProfile) profile);
+        return asAuthlib(craft.cloneCustom());
+    }
+    // Leaf end - Configurable vanilla username check
+
     public static GameProfile asAuthlib(PlayerProfile profile) {
         CraftPlayerProfile craft = ((CraftPlayerProfile) profile);
         return craft.getGameProfile();