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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
33 lines
1.8 KiB
Diff
33 lines
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: stonar96 <minecraft.stonar96@gmail.com>
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Date: Sun, 12 Sep 2021 00:14:21 +0200
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Subject: [PATCH] Check requirement before suggesting root nodes
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Child nodes are handled by CommandDispatcher#parse checking
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requirements.
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Vanilla clients only send ServerboundCommandSuggestionPacket when
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encountering a command node with ASK_SERVER suggestions, however a
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modified client can send this packet whenever it wants.
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diff --git a/src/main/java/com/mojang/brigadier/CommandDispatcher.java b/src/main/java/com/mojang/brigadier/CommandDispatcher.java
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index 858e41fba7dc285dd21a93f3918cc5de3887df5f..92848b64a78fce7a92e1657c2da6fc5ee53eea44 100644
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--- a/src/main/java/com/mojang/brigadier/CommandDispatcher.java
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+++ b/src/main/java/com/mojang/brigadier/CommandDispatcher.java
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@@ -538,10 +538,14 @@ public class CommandDispatcher<S> {
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int i = 0;
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for (final CommandNode<S> node : parent.getChildren()) {
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CompletableFuture<Suggestions> future = Suggestions.empty();
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+ // Paper start - Don't suggest if the requirement isn't met
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+ if (parent != this.root || node.canUse(context.getSource())) {
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try {
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- if (node.canUse(parse.getContext().getSource())) future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, truncatedInputLowerCase, start)); // CraftBukkit
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+ future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, truncatedInputLowerCase, start)); // CraftBukkit
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} catch (final CommandSyntaxException ignored) {
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}
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+ }
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+ // Paper end - Don't suggest if the requirement isn't met
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futures[i++] = future;
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}
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