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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.
81 lines
4.2 KiB
Diff
81 lines
4.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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Date: Wed, 25 Aug 2021 13:19:53 -0700
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Subject: [PATCH] Vanilla command permission fixes
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Fixes permission checks for vanilla commands which don't have a
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requirement, as well as for namespaced vanilla commands.
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== AT ==
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public-f com.mojang.brigadier.tree.CommandNode requirement
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diff --git a/src/main/java/com/mojang/brigadier/builder/ArgumentBuilder.java b/src/main/java/com/mojang/brigadier/builder/ArgumentBuilder.java
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index 899008b2980d13f1be6280cd8cb959c53a29bebf..d5f7da3502575f6847f3c22ab0e942848a7c6031 100644
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--- a/src/main/java/com/mojang/brigadier/builder/ArgumentBuilder.java
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+++ b/src/main/java/com/mojang/brigadier/builder/ArgumentBuilder.java
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@@ -14,9 +14,17 @@ import java.util.Collections;
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import java.util.function.Predicate;
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public abstract class ArgumentBuilder<S, T extends ArgumentBuilder<S, T>> {
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+ // Paper start - Vanilla command permission fixes
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+ private static final Predicate<Object> DEFAULT_REQUIREMENT = s -> true;
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+
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+ @SuppressWarnings("unchecked")
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+ public static <S> Predicate<S> defaultRequirement() {
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+ return (Predicate<S>) DEFAULT_REQUIREMENT;
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+ }
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+ // Paper end - Vanilla command permission fixes
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private final RootCommandNode<S> arguments = new RootCommandNode<>();
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private Command<S> command;
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- private Predicate<S> requirement = s -> true;
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+ private Predicate<S> requirement = defaultRequirement(); // Paper - Vanilla command permission fixes
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private CommandNode<S> target;
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private RedirectModifier<S> modifier = null;
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private boolean forks;
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diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
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index c11977dceeba4120cdb63972c4ec486640d8114e..8be58d29f2a4753a241e68bd305b3e30186ca0e9 100644
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--- a/src/main/java/net/minecraft/commands/Commands.java
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+++ b/src/main/java/net/minecraft/commands/Commands.java
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@@ -257,6 +257,13 @@ public class Commands {
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}
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this.vanillaCommandNodes.addAll(this.dispatcher.getRoot().getChildren()); // Paper - Add UnknownCommandEvent
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+ // Paper start - Vanilla command permission fixes
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+ for (final CommandNode<CommandSourceStack> node : this.dispatcher.getRoot().getChildren()) {
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+ if (node.getRequirement() == com.mojang.brigadier.builder.ArgumentBuilder.<CommandSourceStack>defaultRequirement()) {
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+ node.requirement = stack -> stack.source == CommandSource.NULL || stack.getBukkitSender().hasPermission(org.bukkit.craftbukkit.command.VanillaCommandWrapper.getPermission(node));
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+ }
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+ }
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+ // Paper end - Vanilla command permission fixes
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// CraftBukkit start
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
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index 5e6645e16b185aaa6f719055ddbf670b8741fead..bda9a0b99184adce28bb7851612ed7f4e324826d 100644
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--- a/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
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+++ b/src/main/java/org/bukkit/craftbukkit/command/VanillaCommandWrapper.java
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@@ -86,7 +86,23 @@ public final class VanillaCommandWrapper extends BukkitCommand {
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}
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public static String getPermission(CommandNode<CommandSourceStack> vanillaCommand) {
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- return "minecraft.command." + ((vanillaCommand.getRedirect() == null) ? vanillaCommand.getName() : vanillaCommand.getRedirect().getName());
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+ // Paper start - Vanilla command permission fixes
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+ final String commandName;
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+ if (vanillaCommand.getRedirect() == null) {
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+ commandName = vanillaCommand.getName();
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+ } else {
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+ commandName = vanillaCommand.getRedirect().getName();
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+ }
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+ return "minecraft.command." + stripDefaultNamespace(commandName);
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+ }
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+
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+ private static String stripDefaultNamespace(final String maybeNamespaced) {
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+ final String prefix = "minecraft:";
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+ if (maybeNamespaced.startsWith(prefix)) {
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+ return maybeNamespaced.substring(prefix.length());
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+ }
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+ return maybeNamespaced;
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+ // Paper end - Vanilla command permission fixes
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}
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private String toDispatcher(String[] args, String name) {
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