1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
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..aa2aff62c873ba85b0cbced5382398c858420e59
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
@@ -0,0 +1,97 @@
+package com.destroystokyo.paper.network;
+
+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;
+
+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;
+ }
+
+ 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(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 1fdd088f0bb6606f2a9a482d276aa3e9261be012..b6c5656665e492a7fdec0ae15545ecbabf585336 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;
@@ -1490,7 +1493,7 @@ 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 9e62aa13845f19faf0dc0b7b27d958626e77d96e..6f1c9fa89e718cbc01a8d72de34154f49c5f46db 100644
--- a/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerStatusPacketListenerImpl.java
@@ -48,6 +48,8 @@ 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();
@@ -150,6 +152,9 @@ 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 27b01f7ed930baab466a5e4f9608e9e1a4da0978..7cd1f375b9ad9e6d6f2d26661519f12be064a9d2 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
}
|