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c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
79 lines
4.1 KiB
Diff
79 lines
4.1 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 c5c9fb28fe858e2900e43f8aafccddf63f09676e..64656e69dbeb6a1cf399ca143a2d7e0a1ee85957 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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@@ -256,6 +256,13 @@ public class Commands {
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PublishCommand.register(this.dispatcher);
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}
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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..98d314cd293d462ef109e952f3239e08e14dda59 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 +86,21 @@ 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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+ while (vanillaCommand.getRedirect() != null) {
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+ vanillaCommand = vanillaCommand.getRedirect();
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+ }
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+ final String commandName = vanillaCommand.getName();
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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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