From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stabrinai <wujiaxin752@outlook.com>
Date: Sun, 30 Jun 2024 20:46:42 +0800
Subject: [PATCH] Add config to verify signature only in online-mode


diff --git a/src/main/java/me/earthme/luminol/config/modules/misc/PublickeyVerifyConfig.java b/src/main/java/me/earthme/luminol/config/modules/misc/PublickeyVerifyConfig.java
new file mode 100644
index 0000000000000000000000000000000000000000..e45ce3abf49684c911678abcefd69586246cc0e3
--- /dev/null
+++ b/src/main/java/me/earthme/luminol/config/modules/misc/PublickeyVerifyConfig.java
@@ -0,0 +1,21 @@
+package me.earthme.luminol.config.modules.misc;
+
+import me.earthme.luminol.config.ConfigInfo;
+import me.earthme.luminol.config.EnumConfigCategory;
+import me.earthme.luminol.config.IConfigModule;
+
+public class PublickeyVerifyConfig implements IConfigModule {
+
+    @ConfigInfo(baseName = "enabled")
+    public static boolean enabled = false;
+
+    @Override
+    public EnumConfigCategory getCategory() {
+        return EnumConfigCategory.MISC;
+    }
+
+    @Override
+    public String getBaseName() {
+        return "verify_publickey_only_in_online_mode";
+    }
+}
diff --git a/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java b/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java
index 2fa51c3a70f43cd23b8f494fc643d66cecfda7d2..2c541f300ea1657e2d75d0eeb36809aaf437b205 100644
--- a/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java
+++ b/src/main/java/net/minecraft/world/entity/player/ProfilePublicKey.java
@@ -9,12 +9,15 @@ import java.time.Duration;
 import java.time.Instant;
 import java.util.Arrays;
 import java.util.UUID;
+
+import me.earthme.luminol.config.modules.misc.PublickeyVerifyConfig;
 import net.minecraft.network.FriendlyByteBuf;
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.chat.ThrowingComponent;
 import net.minecraft.util.Crypt;
 import net.minecraft.util.ExtraCodecs;
 import net.minecraft.util.SignatureValidator;
+import org.bukkit.Bukkit;
 
 public record ProfilePublicKey(ProfilePublicKey.Data data) {
     public static final Component EXPIRED_PROFILE_PUBLIC_KEY = Component.translatable("multiplayer.disconnect.expired_public_key");
@@ -23,7 +26,7 @@ public record ProfilePublicKey(ProfilePublicKey.Data data) {
     public static final Codec<ProfilePublicKey> TRUSTED_CODEC = ProfilePublicKey.Data.CODEC.xmap(ProfilePublicKey::new, ProfilePublicKey::data);
 
     public static ProfilePublicKey createValidated(SignatureValidator servicesSignatureVerifier, UUID playerUuid, ProfilePublicKey.Data publicKeyData) throws ProfilePublicKey.ValidationException {
-        if (!publicKeyData.validateSignature(servicesSignatureVerifier, playerUuid)) {
+        if ((!PublickeyVerifyConfig.enabled || Bukkit.getServer().getOnlineMode()) && !publicKeyData.validateSignature(servicesSignatureVerifier, playerUuid)) { // Luminol - Verify signature only in online-mode
             throw new ProfilePublicKey.ValidationException(INVALID_SIGNATURE, org.bukkit.event.player.PlayerKickEvent.Cause.INVALID_PUBLIC_KEY_SIGNATURE); // Paper - kick event causes
         } else {
             return new ProfilePublicKey(publicKeyData);