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Paper-Old/patches/server/0180-Implement-extended-PaperServerListPingEvent.patch
Josh Roy 3cd2c987cf Updated Upstream (Bukkit/CraftBukkit/Spigot)
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:
ea30a299 Add docs in ServerListPingEvent based on changes from 1.18

CraftBukkit Changes:
03f249f0 Generate bootstrap jar separately
3b214b5a SPIGOT-6803: Fix ServerPing not using the new logic for show players in 1.18

Spigot Changes:
c07753b0 Rebuild patches
2021-11-30 19:26:33 +01:00

251 Zeilen
12 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..4ecd0c5bbea55f68549c85aa27e80e2c7e6265d4
--- /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.getMotd(), 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..4c2351b03b58511b80017b58ee9b20ab5193adc9
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
@@ -0,0 +1,110 @@
+package com.destroystokyo.paper.network;
+
+import com.destroystokyo.paper.profile.CraftPlayerProfile;
+import com.destroystokyo.paper.profile.PlayerProfile;
+import com.google.common.base.MoreObjects;
+import com.google.common.base.Strings;
+import com.mojang.authlib.GameProfile;
+import io.papermc.paper.adventure.AdventureComponent;
+import java.util.List;
+import java.util.UUID;
+import javax.annotation.Nonnull;
+import net.minecraft.network.Connection;
+import net.minecraft.network.protocol.status.ClientboundStatusResponsePacket;
+import net.minecraft.network.protocol.status.ServerStatus;
+import net.minecraft.server.MinecraftServer;
+
+public final class StandardPaperServerListPingEventImpl extends PaperServerListPingEventImpl {
+
+ private static final GameProfile[] EMPTY_PROFILES = new GameProfile[0];
+ private static final UUID FAKE_UUID = new UUID(0, 0);
+
+ private GameProfile[] originalSample;
+
+ private StandardPaperServerListPingEventImpl(MinecraftServer server, Connection networkManager, ServerStatus ping) {
+ super(server, new PaperStatusClient(networkManager), ping.getVersion() != null ? ping.getVersion().getProtocol() : -1, server.server.getServerIcon());
+ this.originalSample = ping.getPlayers() == null ? null : ping.getPlayers().getSample(); // GH-1473 - pre-tick race condition NPE
+ }
+
+ @Nonnull
+ @Override
+ public List<PlayerProfile> getPlayerSample() {
+ List<PlayerProfile> sample = super.getPlayerSample();
+
+ if (this.originalSample != null) {
+ for (GameProfile profile : this.originalSample) {
+ sample.add(CraftPlayerProfile.asBukkitCopy(profile));
+ }
+ this.originalSample = null;
+ }
+
+ return sample;
+ }
+
+ private GameProfile[] getPlayerSampleHandle() {
+ if (this.originalSample != null) {
+ return this.originalSample;
+ }
+
+ List<PlayerProfile> entries = super.getPlayerSample();
+ if (entries.isEmpty()) {
+ return EMPTY_PROFILES;
+ }
+
+ GameProfile[] profiles = new GameProfile[entries.size()];
+ for (int i = 0; i < profiles.length; i++) {
+ /*
+ * Avoid null UUIDs/names since that will make the response invalid
+ * on the client.
+ * Instead, fall back to a fake/empty UUID and an empty string as name.
+ * This can be used to create custom lines in the player list that do not
+ * refer to a specific player.
+ */
+
+ PlayerProfile profile = entries.get(i);
+ if (profile.getId() != null && profile.getName() != null) {
+ profiles[i] = CraftPlayerProfile.asAuthlib(profile);
+ } else {
+ profiles[i] = new GameProfile(MoreObjects.firstNonNull(profile.getId(), FAKE_UUID), Strings.nullToEmpty(profile.getName()));
+ }
+ }
+
+ return profiles;
+ }
+
+ @SuppressWarnings("deprecation")
+ 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(null);
+ return;
+ }
+
+ // Setup response
+ ServerStatus ping = new ServerStatus();
+
+ // Description
+ ping.setDescription(new AdventureComponent(event.motd()));
+
+ // Players
+ if (!event.shouldHidePlayers()) {
+ ping.setPlayers(new ServerStatus.Players(event.getMaxPlayers(), event.getNumPlayers()));
+ ping.getPlayers().setSample(event.getPlayerSampleHandle());
+ }
+
+ // Version
+ ping.setVersion(new ServerStatus.Version(event.getVersion(), event.getProtocolVersion()));
+
+ // Favicon
+ if (event.getServerIcon() != null) {
+ ping.setFavicon(event.getServerIcon().getData());
+ }
+
+ // Send response
+ networkManager.send(new ClientboundStatusResponsePacket(ping));
+ }
+
+}
diff --git a/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java b/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java
index 67455a5ba75c9b816213e44d6872c5ddf8e27e98..23efad80934930beadf15e65781551d4ba7ff81b 100644
--- a/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java
+++ b/src/main/java/net/minecraft/network/protocol/status/ClientboundStatusResponsePacket.java
@@ -10,7 +10,9 @@ import net.minecraft.util.GsonHelper;
import net.minecraft.util.LowerCaseEnumTypeAdapterFactory;
public class ClientboundStatusResponsePacket implements Packet<ClientStatusPacketListener> {
- 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();
+ 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())
+ .registerTypeAdapter(io.papermc.paper.adventure.AdventureComponent.class, new io.papermc.paper.adventure.AdventureComponent.Serializer())
+ .create();
private final ServerStatus status;
public ClientboundStatusResponsePacket(ServerStatus metadata) {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 543acb52698deb890a2624112e63be275a52c008..e9333b85100d7670b2be7df6e847dfca3084ff55 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -2,6 +2,9 @@ package net.minecraft.server;
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;
@@ -1320,7 +1323,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
this.lastServerStatus = i;
this.status.setPlayers(new ServerStatus.Players(this.getMaxPlayers(), this.getPlayerCount()));
if (!this.hidesOnlinePlayers()) {
- GameProfile[] agameprofile = new GameProfile[Math.min(this.getPlayerCount(), 12)];
+ GameProfile[] agameprofile = new GameProfile[Math.min(this.getPlayerCount(), org.spigotmc.SpigotConfig.playerSample)]; // Paper
int j = Mth.nextInt(this.random, 0, this.getPlayerCount() - agameprofile.length);
for (int k = 0; k < agameprofile.length; ++k) {
diff --git a/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
index 2b24a41587fbe1fba70a0ab42d3dc33358f2ba2e..4fa79d37ff4e70c61672cce7c55257c46232c026 100644
--- a/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
@@ -47,6 +47,8 @@ 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.server.getStatus()));
final Object[] players = this.server.getPlayerList().players.toArray();
@@ -150,6 +152,9 @@ public class ServerStatusPacketListenerImpl implements ServerStatusPacketListene
this.connection.send(new ClientboundStatusResponsePacket(ping));
// CraftBukkit end
+ */
+ com.destroystokyo.paper.network.StandardPaperServerListPingEventImpl.processRequest(this.server, this.connection);
+ // Paper end
}
}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index d73dfe72a54b621c0f944c90904df3e3bc709445..8e7630de11637a75a4a54a22283cbb2d0c7e6438 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -289,7 +289,7 @@ 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
}