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Paper/patches/server/0847-Do-not-accept-invalid-client-settings.patch
Nassim Jahnke 20503beee5
Remove guardian beam render issue workaround
Messing with game time sent to the client isn't worth the trouble whenever it may be used by the client now and in the future for such a small issue. Mojang, plz fix
2022-12-15 14:19:09 +01:00

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1.4 KiB
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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 f63e29b0783d53a30e0fa16ff2566020c057e4bb..b0b4c53cea08153f4d64da848fecced46424fea6 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -3463,6 +3463,13 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
@Override
public void handleClientInformation(ServerboundClientInformationPacket packet) {
PacketUtils.ensureRunningOnSameThread(packet, this, this.player.getLevel());
+ // Paper start - do not accept invalid information
+ if (packet.viewDistance() < 0) {
+ LOGGER.warn("Disconnecting " + this.player.getScoreboardName() + " for invalid view distance: " + packet.viewDistance());
+ this.disconnect("Invalid client settings", PlayerKickEvent.Cause.ILLEGAL_ACTION);
+ return;
+ }
+ // Paper end - do not accept invalid information
this.player.updateOptions(packet);
}