Paper/patches/server/0810-Do-not-accept-invalid-client-settings.patch

25 Zeilen
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 7 May 2022 14:58:53 -0700
Subject: [PATCH] Do not accept invalid client settings
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index bea158416ed6c13db633efb742153f7813df5540..616ea3055c854872fbb5754bdf0b67deac1b4b58 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3311,6 +3311,13 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
@Override
public void handleClientInformation(ServerboundClientInformationPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
+ // Paper start - do not accept invalid information
+ if (packet.information().viewDistance() < 0) {
+ LOGGER.warn("Disconnecting " + this.player.getScoreboardName() + " for invalid view distance: " + packet.information().viewDistance());
+ this.disconnect("Invalid client settings", org.bukkit.event.player.PlayerKickEvent.Cause.ILLEGAL_ACTION);
+ return;
+ }
+ // Paper end - do not accept invalid information
this.player.updateOptions(packet.information());
this.connection.channel.attr(io.papermc.paper.adventure.PaperAdventure.LOCALE_ATTRIBUTE).set(net.kyori.adventure.translation.Translator.parseLocale(packet.information().language())); // Paper
}