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Telesphoreo 2022-06-12 00:35:09 -05:00
parent 4ecd7e939c
commit 5ca9ce2099
2 changed files with 37 additions and 1 deletions
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1
build-data/dev-imports.txt
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@ -11,3 +11,4 @@
minecraft net/minecraft/world/ContainerHelper
minecraft net/minecraft/network/chat/contents/NbtContents
minecraft net/minecraft/network/chat/ComponentUtils

35
patches/server/0028-Reject-oversized-components-from-updating.patch Normal file
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@ -0,0 +1,35 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Telesphoreo <me@telesphoreo.me>
Date: Sun, 12 Jun 2022 00:33:21 -0500
Subject: [PATCH] Reject oversized components from updating
diff --git a/src/main/java/net/minecraft/network/chat/ComponentUtils.java b/src/main/java/net/minecraft/network/chat/ComponentUtils.java
index 9d3449dd92bbbef91b627caba752b87d8209011d..26c0438e8d4ef5ccfc53fbd5233bb6b7b0b1fc60 100644
--- a/src/main/java/net/minecraft/network/chat/ComponentUtils.java
+++ b/src/main/java/net/minecraft/network/chat/ComponentUtils.java
@@ -39,8 +39,10 @@ public class ComponentUtils {
}
public static MutableComponent updateForEntity(@Nullable CommandSourceStack source, Component text, @Nullable Entity sender, int depth) throws CommandSyntaxException {
+ // Scissors start - Reject oversized components
+ MutableComponent result;
if (depth > 100) {
- return text.copy();
+ result = text.copy();
} else {
MutableComponent mutableComponent = text.getContents().resolve(source, sender, depth + 1);
@@ -48,8 +50,11 @@ public class ComponentUtils {
mutableComponent.append(updateForEntity(source, component, sender, depth + 1));
}
- return mutableComponent.withStyle(resolveStyle(source, text.getStyle(), sender, depth));
+ result = mutableComponent.withStyle(resolveStyle(source, text.getStyle(), sender, depth));
}
+ // Would the resulting component exceed 65535 bytes when encoded as a string?
+ return Component.Serializer.toJson(result).length() > 65535 ? Component.empty() : result;
+ // Scissors end
}
private static Style resolveStyle(@Nullable CommandSourceStack source, Style style, @Nullable Entity sender, int depth) throws CommandSyntaxException {