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Paper/Spigot-Server-Patches/0275-Implement-extended-PaperServerListPingEvent.patch
Aikar 18c3716c49
Current Chunk for Entity and Block Entities, counts by entity type 
This enables us a fast reference to the entities current chunk instead
of having to look it up by hashmap lookups.

We also store counts by type to further enable other performance optimizations in later patches.
2018-07-04 03:58:56 -04:00

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From 25ff513d84565b3f16325cd6e338d2837fcad079 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 000000000..c1a8e295b
--- /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.EntityPlayer;
+import net.minecraft.server.MinecraftServer;
+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.getVersion(), protocolVersion, icon);
+ this.server = server;
+ }
+
+ @Override
+ protected final Object[] getOnlinePlayers() {
+ return this.server.getPlayerList().players.toArray();
+ }
+
+ @Override
+ protected final Player getBukkitPlayer(Object player) {
+ return ((EntityPlayer) 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 000000000..a2a409e63
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/PaperStatusClient.java
@@ -0,0 +1,11 @@
+package com.destroystokyo.paper.network;
+
+import net.minecraft.server.NetworkManager;
+
+class PaperStatusClient extends PaperNetworkClient implements StatusClient {
+
+ PaperStatusClient(NetworkManager 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 000000000..350410527
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/network/StandardPaperServerListPingEventImpl.java
@@ -0,0 +1,112 @@
+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 net.minecraft.server.ChatComponentText;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.NetworkManager;
+import net.minecraft.server.PacketStatusOutServerInfo;
+import net.minecraft.server.ServerPing;
+
+import java.util.List;
+import java.util.UUID;
+
+import javax.annotation.Nonnull;
+
+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, NetworkManager networkManager, ServerPing ping) {
+ super(server, new PaperStatusClient(networkManager), ping.getServerData().getProtocolVersion(), server.server.getServerIcon());
+ this.originalSample = ping.getPlayers().getSample();
+ }
+
+ @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, NetworkManager networkManager) {
+ StandardPaperServerListPingEventImpl event = new StandardPaperServerListPingEventImpl(server, networkManager, server.getServerPing());
+ server.server.getPluginManager().callEvent(event);
+
+ // Close connection immediately if event is cancelled
+ if (event.isCancelled()) {
+ networkManager.close(null);
+ return;
+ }
+
+ // Setup response
+ ServerPing ping = new ServerPing();
+
+ // Description
+ ping.setMOTD(new ChatComponentText(event.getMotd()));
+
+ // Players
+ if (!event.shouldHidePlayers()) {
+ ping.setPlayerSample(new ServerPing.ServerPingPlayerSample(event.getMaxPlayers(), event.getNumPlayers()));
+ ping.getPlayers().setSample(event.getPlayerSampleHandle());
+ }
+
+ // Version
+ ping.setServerInfo(new ServerPing.ServerData(event.getVersion(), event.getProtocolVersion()));
+
+ // Favicon
+ if (event.getServerIcon() != null) {
+ ping.setFavicon(event.getServerIcon().getData());
+ }
+
+ // Send response
+ networkManager.sendPacket(new PacketStatusOutServerInfo(ping));
+ }
+
+}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 3092913f5..f82e22b23 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -768,7 +768,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
if (i - this.Z >= 5000000000L) {
this.Z = i;
this.q.setPlayerSample(new ServerPing.ServerPingPlayerSample(this.I(), this.H()));
- GameProfile[] agameprofile = new GameProfile[Math.min(this.H(), 12)];
+ GameProfile[] agameprofile = new GameProfile[Math.min(this.H(), org.spigotmc.SpigotConfig.playerSample)]; // Paper
int j = MathHelper.nextInt(this.r, 0, this.H() - agameprofile.length);
for (int k = 0; k < agameprofile.length; ++k) {
@@ -1115,10 +1115,12 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
return "1.12.2";
}
+ public int getPlayerCount() { return H(); } // Paper - OBFHELPER
public int H() {
return this.v.getPlayerCount();
}
+ public int getMaxPlayers() { return I(); } // Paper - OBFHELPER
public int I() {
return this.v.getMaxPlayers();
}
diff --git a/src/main/java/net/minecraft/server/PacketStatusListener.java b/src/main/java/net/minecraft/server/PacketStatusListener.java
index 313bb0007..f3c25367d 100644
--- a/src/main/java/net/minecraft/server/PacketStatusListener.java
+++ b/src/main/java/net/minecraft/server/PacketStatusListener.java
@@ -30,6 +30,8 @@ public class PacketStatusListener implements PacketStatusInListener {
this.networkManager.close(PacketStatusListener.a);
} else {
this.d = true;
+ // Paper start - Replace everything
+ /*
// CraftBukkit start
// this.networkManager.sendPacket(new PacketStatusOutServerInfo(this.minecraftServer.getServerPing()));
final Object[] players = minecraftServer.getPlayerList().players.toArray();
@@ -125,6 +127,9 @@ public class PacketStatusListener implements PacketStatusInListener {
ping.setServerInfo(new ServerPing.ServerData(minecraftServer.getServerModName() + " " + minecraftServer.getVersion(), version));
this.networkManager.sendPacket(new PacketStatusOutServerInfo(ping));
+ */
+ com.destroystokyo.paper.network.StandardPaperServerListPingEventImpl.processRequest(this.minecraftServer, this.networkManager);
+ // Paper end
}
// CraftBukkit end
}
diff --git a/src/main/java/net/minecraft/server/ServerPing.java b/src/main/java/net/minecraft/server/ServerPing.java
index 981582212..ac161f505 100644
--- a/src/main/java/net/minecraft/server/ServerPing.java
+++ b/src/main/java/net/minecraft/server/ServerPing.java
@@ -29,6 +29,7 @@ public class ServerPing {
this.a = ichatbasecomponent;
}
+ public ServerPingPlayerSample getPlayers() { return b(); } // Paper - OBFHELPER
public ServerPing.ServerPingPlayerSample b() {
return this.b;
}
@@ -164,10 +165,12 @@ public class ServerPing {
return this.b;
}
+ public GameProfile[] getSample() { return c(); } // Paper - OBFHELPER
public GameProfile[] c() {
return this.c;
}
+ public void setSample(GameProfile[] sample) { a(sample); } // Paper - OBFHELPER
public void a(GameProfile[] agameprofile) {
this.c = agameprofile;
}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index cc1f3ac96..4f9fd4bc6 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -281,7 +281,7 @@ public class SpigotConfig
public static int playerSample;
private static void playerSample()
{
- playerSample = getInt( "settings.sample-count", 12 );
+ playerSample = Math.max(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
}
--
2.18.0
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