PaperMC/patches/server/0173-Implement-extended-PaperServerListPingEvent.patch
Spottedleaf da9d110d5b Remove chunk save reattempt patch
This patch does not appear to be doing anything useful, and may
hide errors.

Currently, the save logic does not run through this path either
so it did not do anything.

Additionally, properly implement support for handling
RegionFileSizeException in Moonrise.
2024-11-28 18:27:59 -08:00

230 lines
10 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Minecrell <minecrell@minecrell.net>
Date: Wed, 11 Oct 2017 15:56:26 +0200
Subject: [PATCH] Implement extended PaperServerListPingEvent
diff --git a/src/main/java/com/destroystokyo/paper/network/PaperServerListPingEventImpl.java b/src/main/java/com/destroystokyo/paper/network/PaperServerListPingEventImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..6ed2114f577ce12d2d493985e798609c7d83f15e
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/PaperServerListPingEventImpl.java
@@ -0,0 +1,31 @@
+package com.destroystokyo.paper.network;
+
+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerPlayer;
+import org.bukkit.entity.Player;
+import org.bukkit.util.CachedServerIcon;
+
+import javax.annotation.Nullable;
+
+class PaperServerListPingEventImpl extends PaperServerListPingEvent {
+
+ private final MinecraftServer server;
+
+ PaperServerListPingEventImpl(MinecraftServer server, StatusClient client, int protocolVersion, @Nullable CachedServerIcon icon) {
+ super(client, server.motd(), server.getPlayerCount(), server.getMaxPlayers(),
+ server.getServerModName() + ' ' + server.getServerVersion(), protocolVersion, icon);
+ this.server = server;
+ }
+
+ @Override
+ protected final Object[] getOnlinePlayers() {
+ return this.server.getPlayerList().players.toArray();
+ }
+
+ @Override
+ protected final Player getBukkitPlayer(Object player) {
+ return ((ServerPlayer) player).getBukkitEntity();
+ }
+
+}
diff --git a/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java b/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java
new file mode 100644
index 0000000000000000000000000000000000000000..d926ad804355ee2fdc5910b2505e8671602acdab
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java
@@ -0,0 +1,11 @@
+package com.destroystokyo.paper.network;
+
+import net.minecraft.network.Connection;
+
+class PaperStatusClient extends PaperNetworkClient implements StatusClient {
+
+ PaperStatusClient(Connection networkManager) {
+ super(networkManager);
+ }
+
+}
diff --git a/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..30a19d10869f73d67b794e8e4c035bc5c10209e6
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
@@ -0,0 +1,105 @@
+package com.destroystokyo.paper.network;
+
+import com.destroystokyo.paper.profile.PlayerProfile;
+import com.mojang.authlib.GameProfile;
+import io.papermc.paper.adventure.AdventureComponent;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+import javax.annotation.Nonnull;
+import net.minecraft.network.Connection;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.status.ClientboundStatusResponsePacket;
+import net.minecraft.network.protocol.status.ServerStatus;
+import net.minecraft.server.MinecraftServer;
+import org.bukkit.craftbukkit.util.CraftIconCache;
+import org.jetbrains.annotations.NotNull;
+
+public final class StandardPaperServerListPingEventImpl extends PaperServerListPingEventImpl {
+
+ private List<GameProfile> originalSample;
+
+ private StandardPaperServerListPingEventImpl(MinecraftServer server, Connection networkManager, ServerStatus ping) {
+ super(server, new PaperStatusClient(networkManager), ping.version().map(ServerStatus.Version::protocol).orElse(-1), server.server.getServerIcon());
+ this.originalSample = ping.players().map(ServerStatus.Players::sample).orElse(null); // GH-1473 - pre-tick race condition NPE
+ }
+
+ @Nonnull
+ @Override
+ public List<ListedPlayerInfo> getListedPlayers() {
+ List<ListedPlayerInfo> sample = super.getListedPlayers();
+
+ if (this.originalSample != null) {
+ for (GameProfile profile : this.originalSample) {
+ sample.add(new ListedPlayerInfo(profile.getName(), profile.getId()));
+ }
+ this.originalSample = null;
+ }
+
+ return sample;
+ }
+
+ @Override
+ public @NotNull List<PlayerProfile> getPlayerSample() {
+ this.getListedPlayers(); // Populate the backing list for the transforming view, and null out originalSample (see getListedPlayers and processRequest)
+ return super.getPlayerSample();
+ }
+
+ private List<GameProfile> getPlayerSampleHandle() {
+ if (this.originalSample != null) {
+ return this.originalSample;
+ }
+
+ List<ListedPlayerInfo> entries = super.getListedPlayers();
+ if (entries.isEmpty()) {
+ return Collections.emptyList();
+ }
+
+ final List<GameProfile> profiles = new ArrayList<>();
+ for (ListedPlayerInfo playerInfo : entries) {
+ profiles.add(new GameProfile(playerInfo.id(), playerInfo.name()));
+ }
+ return profiles;
+ }
+
+ public static void processRequest(MinecraftServer server, Connection networkManager) {
+ StandardPaperServerListPingEventImpl event = new StandardPaperServerListPingEventImpl(server, networkManager, server.getStatus());
+ server.server.getPluginManager().callEvent(event);
+
+ // Close connection immediately if event is cancelled
+ if (event.isCancelled()) {
+ networkManager.disconnect((Component) null);
+ return;
+ }
+
+ // Setup response
+
+ // Description
+ final Component description = new AdventureComponent(event.motd());
+
+ // Players
+ final Optional<ServerStatus.Players> players;
+ if (!event.shouldHidePlayers()) {
+ players = Optional.of(new ServerStatus.Players(event.getMaxPlayers(), event.getNumPlayers(), event.getPlayerSampleHandle()));
+ } else {
+ players = Optional.empty();
+ }
+
+ // Version
+ final ServerStatus.Version version = new ServerStatus.Version(event.getVersion(), event.getProtocolVersion());
+
+ // Favicon
+ final Optional<ServerStatus.Favicon> favicon;
+ if (event.getServerIcon() != null) {
+ favicon = Optional.of(new ServerStatus.Favicon(((CraftIconCache) event.getServerIcon()).value));
+ } else {
+ favicon = Optional.empty();
+ }
+ final ServerStatus ping = new ServerStatus(description, players, Optional.of(version), favicon, server.enforceSecureProfile());
+
+ // Send response
+ networkManager.send(new ClientboundStatusResponsePacket(ping));
+ }
+
+}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index d69d759de22726f4a825cb5e485670aefe05df4a..762c62923bbf38d59f65038222ff7923f3292d33 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -3,6 +3,9 @@ package net.minecraft.server;
import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableList;
+import co.aikar.timings.Timings;
+import com.destroystokyo.paper.event.server.PaperServerListPingEvent;
+import com.google.common.base.Stopwatch;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
@@ -1563,7 +1566,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
if (this.hidesOnlinePlayers()) {
return new ServerStatus.Players(i, list.size(), List.of());
} else {
- int j = Math.min(list.size(), 12);
+ int j = Math.min(list.size(), org.spigotmc.SpigotConfig.playerSample); // Paper - PaperServerListPingEvent
ObjectArrayList<GameProfile> objectarraylist = new ObjectArrayList(j);
int k = Mth.nextInt(this.random, 0, list.size() - j);
diff --git a/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
index f08700abb005f487aca95c0457c09cefa9a81be2..532f09089b8d6798999cf3f83e852df7479e450e 100644
--- a/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
@@ -49,6 +49,8 @@ public class ServerStatusPacketListenerImpl implements ServerStatusPacketListene
this.connection.disconnect(ServerStatusPacketListenerImpl.DISCONNECT_REASON);
} else {
this.hasRequestedStatus = true;
+ // Paper start - Replace everything
+ /*
// CraftBukkit start
// this.connection.send(new PacketStatusOutServerInfo(this.status));
MinecraftServer server = MinecraftServer.getServer();
@@ -151,6 +153,9 @@ public class ServerStatusPacketListenerImpl implements ServerStatusPacketListene
this.connection.send(new ClientboundStatusResponsePacket(ping));
// CraftBukkit end
+ */
+ com.destroystokyo.paper.network.StandardPaperServerListPingEventImpl.processRequest(MinecraftServer.getServer(), this.connection);
+ // Paper end
}
}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index d9e73e37b54e2f6e13313977c76cb4212c240992..b97ff4a9b69699577bf8cde0869b70353101ef46 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -285,7 +285,7 @@ public class SpigotConfig
public static int playerSample;
private static void playerSample()
{
- SpigotConfig.playerSample = SpigotConfig.getInt( "settings.sample-count", 12 );
+ SpigotConfig.playerSample = Math.max( SpigotConfig.getInt( "settings.sample-count", 12 ), 0 ); // Paper - Avoid negative counts
Bukkit.getLogger().log( Level.INFO, "Server Ping Player Sample Count: {0}", playerSample ); // Paper - Use logger
}