mirror of
https://github.com/PaperMC/Paper.git
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250 lines
12 KiB
Diff
250 lines
12 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..4ecd0c5bbea55f68549c85aa27e80e2c7e6265d4
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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.getMotd(), 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..4c2351b03b58511b80017b58ee9b20ab5193adc9
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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 +1,110 @@
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+package com.destroystokyo.paper.network;
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+
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+import com.destroystokyo.paper.profile.CraftPlayerProfile;
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+import com.destroystokyo.paper.profile.PlayerProfile;
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+import com.google.common.base.MoreObjects;
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+import com.google.common.base.Strings;
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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.List;
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+import java.util.UUID;
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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.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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+
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+public final class StandardPaperServerListPingEventImpl extends PaperServerListPingEventImpl {
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+
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+ private static final GameProfile[] EMPTY_PROFILES = new GameProfile[0];
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+ private static final UUID FAKE_UUID = new UUID(0, 0);
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+
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+ private 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.getVersion() != null ? ping.getVersion().getProtocol() : -1, server.server.getServerIcon());
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+ this.originalSample = ping.getPlayers() == null ? null : ping.getPlayers().getSample(); // 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<PlayerProfile> getPlayerSample() {
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+ List<PlayerProfile> sample = super.getPlayerSample();
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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(CraftPlayerProfile.asBukkitCopy(profile));
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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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+ private 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<PlayerProfile> entries = super.getPlayerSample();
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+ if (entries.isEmpty()) {
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+ return EMPTY_PROFILES;
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+ }
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+
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+ GameProfile[] profiles = new GameProfile[entries.size()];
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+ for (int i = 0; i < profiles.length; i++) {
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+ /*
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+ * Avoid null UUIDs/names since that will make the response invalid
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+ * on the client.
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+ * Instead, fall back to a fake/empty UUID and an empty string as name.
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+ * This can be used to create custom lines in the player list that do not
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+ * refer to a specific player.
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+ */
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+
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+ PlayerProfile profile = entries.get(i);
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+ if (profile.getId() != null && profile.getName() != null) {
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+ profiles[i] = CraftPlayerProfile.asAuthlib(profile);
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+ } else {
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+ profiles[i] = new GameProfile(MoreObjects.firstNonNull(profile.getId(), FAKE_UUID), Strings.nullToEmpty(profile.getName()));
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+ }
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+ }
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+
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+ return profiles;
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+ }
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+
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+ @SuppressWarnings("deprecation")
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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(null);
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+ return;
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+ }
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+
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+ // Setup response
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+ ServerStatus ping = new ServerStatus();
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+
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+ // Description
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+ ping.setDescription(new AdventureComponent(event.motd()));
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+
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+ // Players
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+ if (!event.shouldHidePlayers()) {
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+ ping.setPlayers(new ServerStatus.Players(event.getMaxPlayers(), event.getNumPlayers()));
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+ ping.getPlayers().setSample(event.getPlayerSampleHandle());
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+ }
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+
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+ // Version
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+ ping.setVersion(new ServerStatus.Version(event.getVersion(), event.getProtocolVersion()));
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+
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+ // Favicon
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+ if (event.getServerIcon() != null) {
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+ ping.setFavicon(event.getServerIcon().getData());
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+ }
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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/network/protocol/status/ClientboundStatusResponsePacket.java b/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java
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index 67455a5ba75c9b816213e44d6872c5ddf8e27e98..23efad80934930beadf15e65781551d4ba7ff81b 100644
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--- a/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java
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+++ b/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java
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@@ -10,7 +10,9 @@ import net.minecraft.util.GsonHelper;
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import net.minecraft.util.LowerCaseEnumTypeAdapterFactory;
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public class ClientboundStatusResponsePacket implements Packet<ClientStatusPacketListener> {
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- private static final Gson GSON = (new GsonBuilder()).registerTypeAdapter(ServerStatus.Version.class, new ServerStatus.Version.Serializer()).registerTypeAdapter(ServerStatus.Players.class, new ServerStatus.Players.Serializer()).registerTypeAdapter(ServerStatus.class, new ServerStatus.Serializer()).registerTypeHierarchyAdapter(Component.class, new Component.Serializer()).registerTypeHierarchyAdapter(Style.class, new Style.Serializer()).registerTypeAdapterFactory(new LowerCaseEnumTypeAdapterFactory()).create();
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+ private static final Gson GSON = (new GsonBuilder()).registerTypeAdapter(ServerStatus.Version.class, new ServerStatus.Version.Serializer()).registerTypeAdapter(ServerStatus.Players.class, new ServerStatus.Players.Serializer()).registerTypeAdapter(ServerStatus.class, new ServerStatus.Serializer()).registerTypeHierarchyAdapter(Component.class, new Component.Serializer()).registerTypeHierarchyAdapter(Style.class, new Style.Serializer()).registerTypeAdapterFactory(new LowerCaseEnumTypeAdapterFactory())
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+ .registerTypeAdapter(io.papermc.paper.adventure.AdventureComponent.class, new io.papermc.paper.adventure.AdventureComponent.Serializer())
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+ .create();
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private final ServerStatus status;
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public ClientboundStatusResponsePacket(ServerStatus metadata) {
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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 ce5fab6878a65b7ad4fd6aead5b77a9724d3dd63..74e780212773e0d3cce19cb9c33cdcaa4a708f14 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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@@ -2,6 +2,9 @@ package net.minecraft.server;
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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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@@ -1330,7 +1333,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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if (i - this.lastServerStatus >= 5000000000L) {
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this.lastServerStatus = i;
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this.status.setPlayers(new ServerStatus.Players(this.getMaxPlayers(), this.getPlayerCount()));
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- GameProfile[] agameprofile = new GameProfile[Math.min(this.getPlayerCount(), 12)];
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+ GameProfile[] agameprofile = new GameProfile[Math.min(this.getPlayerCount(), org.spigotmc.SpigotConfig.playerSample)]; // Paper
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int j = Mth.nextInt(this.random, 0, this.getPlayerCount() - agameprofile.length);
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for (int k = 0; k < agameprofile.length; ++k) {
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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 9baa56d6da9c24706f1dbc8851fd68ca752cab26..d65191a50349ec86fe35df4ac1070f94fbb77b4c 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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@@ -47,6 +47,8 @@ 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.networkManager.sendPacket(new PacketStatusOutServerInfo(this.minecraftServer.getServerPing()));
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final Object[] players = this.server.getPlayerList().players.toArray();
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@@ -142,6 +144,9 @@ public class ServerStatusPacketListenerImpl implements ServerStatusPacketListene
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ping.setVersion(new ServerStatus.Version(this.server.getServerModName() + " " + this.server.getServerVersion(), version));
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this.connection.send(new ClientboundStatusResponsePacket(ping));
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+ */
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+ com.destroystokyo.paper.network.StandardPaperServerListPingEventImpl.processRequest(this.server, this.connection);
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+ // Paper end
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}
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// CraftBukkit end
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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 d73dfe72a54b621c0f944c90904df3e3bc709445..8e7630de11637a75a4a54a22283cbb2d0c7e6438 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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@@ -289,7 +289,7 @@ 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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