From 3fd73145d6fa36d942e53983d30fd52b5966bd8b Mon Sep 17 00:00:00 2001
From: Stabrinai <wujiaxin752@outlook.com>
Date: Sun, 30 Jun 2024 20:49:45 +0800
Subject: [PATCH] Verify signature only in online-mode

---
 ...Verify-signature-only-in-online-mode.patch | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 patches/server/0055-Verify-signature-only-in-online-mode.patch

diff --git a/patches/server/0055-Verify-signature-only-in-online-mode.patch b/patches/server/0055-Verify-signature-only-in-online-mode.patch
new file mode 100644
index 0000000..cac404f
--- /dev/null
+++ b/patches/server/0055-Verify-signature-only-in-online-mode.patch
@@ -0,0 +1,62 @@
+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] 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);