mirror of
https://github.com/PaperMC/Paper.git
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Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 01aa02eb PR-858: Add LivingEntity#playHurtAnimation() 9421320f PR-884: Refinements to new ban API for improved compatibility and correctness 37a60b45 SPIGOT-6455, SPIGOT-7030, PR-750: Improve ban API 4eeb174b All smithing inventories are now the new smithing inventory f2bb168e PR-880: Add methods to get/set FallingBlock CancelDrop e7a807fa PR-879: Add Player#sendHealthUpdate() 692b8e96 SPIGOT-7370: Remove float value conversion in plugin.yml 2d033390 SPIGOT-7403: Add direct API for waxed signs 16a08373 PR-876: Add missing Raider API and 'no action ticks' CraftBukkit Changes: b60a95c8c PR-1189: Add LivingEntity#playHurtAnimation() 95c335c63 PR-1226: Fix VehicleEnterEvent not being called for certain entities 0a0fc3bee PR-1227: Refinements to new ban API for improved compatibility and correctness 0d0b1e5dc Revert bad change to PathfinderGoalSit causing all cats to sit 648196070 SPIGOT-6455, SPIGOT-7030, PR-1054: Improve ban API 31fe848d6 All smithing inventories are now the new smithing inventory 9a919a143 SPIGOT-7416: SmithItemEvent not firing in Smithing Table 9f64f0d22 PR-1221: Add methods to get/set FallingBlock CancelDrop 3be9ac171 PR-1220: Add Player#sendHealthUpdate() c1279f775 PR-1209: Clean up various patches c432e4397 Fix Raider#setCelebrating() implementation 504d96665 SPIGOT-7403: Add direct API for waxed signs c68c1f1b3 PR-1216: Add missing Raider API and 'no action ticks' 85b89c3dd Increase outdated build delay Spigot Changes: 9ebce8af Rebuild patches 64b565e6 Rebuild patches
198 lines
8.8 KiB
Diff
198 lines
8.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Warrior <50800980+Warriorrrr@users.noreply.github.com>
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Date: Tue, 25 Oct 2022 21:15:37 +0200
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Subject: [PATCH] Add /paper dumplisteners command
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Co-authored-by: TwoLeggedCat <80929284+TwoLeggedCat@users.noreply.github.com>
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diff --git a/src/main/java/io/papermc/paper/command/PaperCommand.java b/src/main/java/io/papermc/paper/command/PaperCommand.java
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index db9567711f7e0ad1778d41e79b59e31916aa9f09..7ba60b4b4f29a42c58d98aafc5ea0fa3214f554c 100644
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--- a/src/main/java/io/papermc/paper/command/PaperCommand.java
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+++ b/src/main/java/io/papermc/paper/command/PaperCommand.java
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@@ -44,6 +44,7 @@ public final class PaperCommand extends Command {
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commands.put(Set.of("syncloadinfo"), new SyncLoadInfoCommand());
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commands.put(Set.of("dumpitem"), new DumpItemCommand());
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commands.put(Set.of("mobcaps", "playermobcaps"), new MobcapsCommand());
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+ commands.put(Set.of("dumplisteners"), new DumpListenersCommand());
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return commands.entrySet().stream()
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.flatMap(entry -> entry.getKey().stream().map(s -> Map.entry(s, entry.getValue())))
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diff --git a/src/main/java/io/papermc/paper/command/subcommands/DumpListenersCommand.java b/src/main/java/io/papermc/paper/command/subcommands/DumpListenersCommand.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..aa44d4685de3caee4131449bead7a084868ff976
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/command/subcommands/DumpListenersCommand.java
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@@ -0,0 +1,172 @@
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+package io.papermc.paper.command.subcommands;
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+
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+import com.destroystokyo.paper.util.SneakyThrow;
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+import io.papermc.paper.command.PaperSubcommand;
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+import java.io.File;
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+import java.io.IOException;
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+import java.io.PrintWriter;
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+import java.lang.invoke.MethodHandle;
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+import java.lang.invoke.MethodHandles;
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+import java.lang.reflect.Field;
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+import java.time.LocalDateTime;
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+import java.time.format.DateTimeFormatter;
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+import java.util.ArrayList;
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+import java.util.Collections;
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+import java.util.List;
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+import java.util.Locale;
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+import java.util.Set;
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+import net.kyori.adventure.text.Component;
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+import net.minecraft.server.MinecraftServer;
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+import org.bukkit.Bukkit;
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+import org.bukkit.command.CommandSender;
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+import org.bukkit.event.HandlerList;
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+import org.bukkit.plugin.Plugin;
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+import org.bukkit.plugin.RegisteredListener;
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+import org.checkerframework.checker.nullness.qual.NonNull;
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+import org.checkerframework.framework.qual.DefaultQualifier;
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+
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+import static net.kyori.adventure.text.Component.newline;
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+import static net.kyori.adventure.text.Component.space;
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+import static net.kyori.adventure.text.Component.text;
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+import static net.kyori.adventure.text.format.NamedTextColor.GRAY;
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+import static net.kyori.adventure.text.format.NamedTextColor.GREEN;
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+import static net.kyori.adventure.text.format.NamedTextColor.RED;
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+import static net.kyori.adventure.text.format.NamedTextColor.WHITE;
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+
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+@DefaultQualifier(NonNull.class)
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+public final class DumpListenersCommand implements PaperSubcommand {
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+ private static final MethodHandle EVENT_TYPES_HANDLE;
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+
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+ static {
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+ try {
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+ final Field eventTypesField = HandlerList.class.getDeclaredField("EVENT_TYPES");
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+ eventTypesField.setAccessible(true);
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+ EVENT_TYPES_HANDLE = MethodHandles.lookup().unreflectGetter(eventTypesField);
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+ } catch (final ReflectiveOperationException e) {
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+ throw new RuntimeException(e);
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+ }
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+ }
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+
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+ @Override
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+ public boolean execute(final CommandSender sender, final String subCommand, final String[] args) {
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+ if (args.length >= 1 && args[0].equals("tofile")) {
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+ this.dumpToFile(sender);
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+ return true;
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+ }
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+ this.doDumpListeners(sender, args);
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+ return true;
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+ }
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+
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+ private void dumpToFile(final CommandSender sender) {
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+ final File file = new File("debug/listeners-"
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+ + DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss").format(LocalDateTime.now()) + ".txt");
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+ file.getParentFile().mkdirs();
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+ try (final PrintWriter writer = new PrintWriter(file)) {
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+ for (final String eventClass : eventClassNames()) {
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+ final HandlerList handlers;
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+ try {
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+ handlers = (HandlerList) findClass(eventClass).getMethod("getHandlerList").invoke(null);
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+ } catch (final ReflectiveOperationException e) {
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+ continue;
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+ }
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+ if (handlers.getRegisteredListeners().length != 0) {
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+ writer.println(eventClass);
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+ }
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+ for (final RegisteredListener registeredListener : handlers.getRegisteredListeners()) {
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+ writer.println(" - " + registeredListener);
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+ }
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+ }
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+ } catch (final IOException ex) {
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+ throw new RuntimeException(ex);
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+ }
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+ sender.sendMessage(text("Dumped listeners to " + file, GREEN));
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+ }
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+
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+ private void doDumpListeners(final CommandSender sender, final String[] args) {
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+ if (args.length == 0) {
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+ sender.sendMessage(text("Usage: /paper dumplisteners tofile|<className>", RED));
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+ return;
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+ }
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+
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+ try {
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+ final HandlerList handlers = (HandlerList) findClass(args[0]).getMethod("getHandlerList").invoke(null);
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+
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+ if (handlers.getRegisteredListeners().length == 0) {
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+ sender.sendMessage(text(args[0] + " does not have any registered listeners."));
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+ return;
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+ }
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+
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+ sender.sendMessage(text("Listeners for " + args[0] + ":"));
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+
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+ for (final RegisteredListener listener : handlers.getRegisteredListeners()) {
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+ final Component hoverText = text("Priority: " + listener.getPriority().name() + " (" + listener.getPriority().getSlot() + ")", WHITE)
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+ .append(newline())
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+ .append(text("Listener: " + listener.getListener()))
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+ .append(newline())
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+ .append(text("Executor: " + listener.getExecutor()))
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+ .append(newline())
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+ .append(text("Ignoring cancelled: " + listener.isIgnoringCancelled()));
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+
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+ sender.sendMessage(text(listener.getPlugin().getName(), GREEN)
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+ .append(space())
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+ .append(text("(" + listener.getListener().getClass().getName() + ")", GRAY).hoverEvent(hoverText)));
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+ }
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+
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+ sender.sendMessage(text("Total listeners: " + handlers.getRegisteredListeners().length));
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+
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+ } catch (final ClassNotFoundException e) {
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+ sender.sendMessage(text("Unable to find a class named '" + args[0] + "'. Make sure to use the fully qualified name.", RED));
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+ } catch (final NoSuchMethodException e) {
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+ sender.sendMessage(text("Class '" + args[0] + "' does not have a valid getHandlerList method.", RED));
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+ } catch (final ReflectiveOperationException e) {
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+ sender.sendMessage(text("Something went wrong, see the console for more details.", RED));
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+ MinecraftServer.LOGGER.warn("Error occurred while dumping listeners for class " + args[0], e);
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+ }
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+ }
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+
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+ @Override
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+ public List<String> tabComplete(final CommandSender sender, final String subCommand, final String[] args) {
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+ return switch (args.length) {
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+ case 0 -> suggestions();
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+ case 1 -> suggestions().stream()
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+ .filter(clazz -> clazz.toLowerCase(Locale.ROOT).contains(args[0].toLowerCase(Locale.ROOT)))
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+ .toList();
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+ default -> Collections.emptyList();
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+ };
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+ }
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+
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+ private static List<String> suggestions() {
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+ final List<String> ret = new ArrayList<>();
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+ ret.add("tofile");
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+ ret.addAll(eventClassNames());
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+ return ret;
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+ }
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+
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+ @SuppressWarnings("unchecked")
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+ private static Set<String> eventClassNames() {
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+ try {
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+ return (Set<String>) EVENT_TYPES_HANDLE.invokeExact();
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+ } catch (final Throwable e) {
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+ SneakyThrow.sneaky(e);
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+ return Collections.emptySet(); // Unreachable
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+ }
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+ }
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+
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+ private static Class<?> findClass(final String className) throws ClassNotFoundException {
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+ try {
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+ return Class.forName(className);
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+ } catch (final ClassNotFoundException ignore) {
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+ for (final Plugin plugin : Bukkit.getServer().getPluginManager().getPlugins()) {
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+ if (!plugin.isEnabled()) {
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+ continue;
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+ }
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+
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+ try {
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+ return Class.forName(className, false, plugin.getClass().getClassLoader());
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+ } catch (final ClassNotFoundException ignore0) {
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+ }
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+ }
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+ }
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+ throw new ClassNotFoundException(className);
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+ }
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+}
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