mirror of
https://github.com/PaperMC/Paper.git
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77a5779e24
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: 2ec53f49 PR-1050: Fix empty result check for Complex Recipes 10671012 PR-1044: Add CrafterCraftEvent 4d87ffe0 Use correct method in JavaDoc ae5e5817 SPIGOT-7850: Add API for Bogged shear state 46b6d445 SPIGOT-7837: Support data pack banner patterns d5d0cefc Fix JavaDoc error b3c2b83d PR-1036: Add API for InventoryView derivatives 1fe2c75a SPIGOT-7809: Add ShieldMeta CraftBukkit Changes: 8ee6fd1b8 SPIGOT-7857: Improve ItemMeta block data deserialization 8f26c30c6 SPIGOT-7857: Fix spurious internal NBT tag when deserializing BlockStateMeta 759061b93 SPIGOT-7855: Fire does not spread or burn blocks 00fc9fb64 SPIGOT-7853: AnvilInventory#getRepairCost() always returns 0 7501e2e04 PR-1450: Add CrafterCraftEvent 8c51673e7 SPIGOT-5731: PortalCreateEvent#getEntity returns null for nether portals ignited by flint and steel d53d0d0b1 PR-1456: Fix inverted logic in CraftCrafterView#setSlotDisabled 682a678c8 SPIGOT-7850: Add API for Bogged shear state fccf5243a SPIGOT-7837: Support data pack banner patterns 9c3bd4390 PR-1431: Add API for InventoryView derivatives 0cc6acbc4 SPIGOT-7849: Fix FoodComponent serialize with "using-converts-to" using null 2c5474952 Don't rely on tags for CraftItemMetas 20d107e46 SPIGOT-7846: Fix ItemMeta for hanging signs 76f59e315 Remove redundant clone in Dropper InventoryMoveItemEvent e61a53d25 SPIGOT-7817: Call InventoryMoveItemEvent for Crafters 894682e2d SPIGOT-7839: Remove redundant Java version checks 2c12b2187 SPIGOT-7809: Add ShieldMeta and fix setting shield base colours Spigot Changes: fb8fb722 Rebuild patches 34bd42b7 SPIGOT-7835: Fix issue with custom hopper settings
197 lines
8.8 KiB
Diff
197 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 fd4f37711989431f997d77fb0917f8a9232ce53f..46bf42d5ea9e7b046f962531c5962d287cf44a41 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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@@ -41,6 +41,7 @@ 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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