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