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* Expose server build information * squash patches * final tweaks --------- Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com> Co-authored-by: masmc05 <masmc05@gmail.com>
156 lines
8.1 KiB
Diff
156 lines
8.1 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 19:30:51 +0200
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Subject: [PATCH] Call PaperServerListPingEvent for legacy pings
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diff --git a/src/main/java/com/destroystokyo/paper/network/PaperLegacyStatusClient.java b/src/main/java/com/destroystokyo/paper/network/PaperLegacyStatusClient.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..cc54b1c207981235b5160e8773b27cf9a5dcd4d5
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/network/PaperLegacyStatusClient.java
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@@ -0,0 +1,75 @@
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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.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
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+import net.minecraft.ChatFormatting;
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+import net.minecraft.server.MinecraftServer;
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+import org.apache.commons.lang3.StringUtils;
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+
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+import java.net.InetSocketAddress;
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+
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+import javax.annotation.Nullable;
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+
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+public final class PaperLegacyStatusClient implements StatusClient {
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+
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+ private final InetSocketAddress address;
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+ private final int protocolVersion;
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+ @Nullable private final InetSocketAddress virtualHost;
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+
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+ private PaperLegacyStatusClient(InetSocketAddress address, int protocolVersion, @Nullable InetSocketAddress virtualHost) {
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+ this.address = address;
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+ this.protocolVersion = protocolVersion;
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+ this.virtualHost = virtualHost;
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+ }
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+
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+ @Override
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+ public InetSocketAddress getAddress() {
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+ return this.address;
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+ }
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+
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+ @Override
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+ public int getProtocolVersion() {
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+ return this.protocolVersion;
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+ }
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+
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+ @Nullable
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+ @Override
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+ public InetSocketAddress getVirtualHost() {
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+ return this.virtualHost;
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+ }
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+
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+ @Override
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+ public boolean isLegacy() {
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+ return true;
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+ }
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+
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+ public static PaperServerListPingEvent processRequest(MinecraftServer server,
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+ InetSocketAddress address, int protocolVersion, @Nullable InetSocketAddress virtualHost) {
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+
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+ PaperServerListPingEvent event = new PaperServerListPingEventImpl(server,
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+ new PaperLegacyStatusClient(address, protocolVersion, virtualHost), Byte.MAX_VALUE, null);
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+ server.server.getPluginManager().callEvent(event);
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+
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+ if (event.isCancelled()) {
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+ return null;
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+ }
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+
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+ return event;
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+ }
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+
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+ @SuppressWarnings("deprecation") // Valid as this is the legacy status client
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+ public static String getMotd(PaperServerListPingEvent event) {
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+ return getFirstLine(event.getMotd());
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+ }
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+
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+ public static String getUnformattedMotd(PaperServerListPingEvent event) {
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+ // Strip color codes and all other occurrences of the color char (because it's used as delimiter)
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+ return getFirstLine(StringUtils.remove(PlainTextComponentSerializer.plainText().serialize(event.motd()), ChatFormatting.PREFIX_CODE));
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+ }
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+
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+ private static String getFirstLine(String s) {
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+ int pos = s.indexOf('\n');
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+ return pos >= 0 ? s.substring(0, pos) : s;
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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/network/LegacyQueryHandler.java b/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java
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index 738da83f82bf01bde94c956ac22525a638db3906..d4f5a98a0b1ca9f2a8baa6e0b27353df94d1f333 100644
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--- a/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java
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+++ b/src/main/java/net/minecraft/server/network/LegacyQueryHandler.java
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@@ -46,11 +46,22 @@ public class LegacyQueryHandler extends ChannelInboundHandlerAdapter {
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SocketAddress socketaddress = channelhandlercontext.channel().remoteAddress();
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int i = bytebuf.readableBytes();
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String s = null; // Paper
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- org.bukkit.event.server.ServerListPingEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callServerListPingEvent(socketaddress, this.server.getMotd(), this.server.getPlayerCount(), this.server.getMaxPlayers()); // CraftBukkit
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+ // org.bukkit.event.server.ServerListPingEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callServerListPingEvent(socketaddress, this.server.getMotd(), this.server.getPlayerCount(), this.server.getMaxPlayers()); // CraftBukkit // Paper
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+ com.destroystokyo.paper.event.server.PaperServerListPingEvent event; // Paper
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if (i == 0) {
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LegacyQueryHandler.LOGGER.debug("Ping: (<1.3.x) from {}", socketaddress);
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- s = LegacyQueryHandler.createVersion0Response(this.server, event); // CraftBukkit
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+
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+ // Paper start - Call PaperServerListPingEvent and use results
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+ event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(net.minecraft.server.MinecraftServer.getServer(), (java.net.InetSocketAddress) socketaddress, 39, null);
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+ if (event == null) {
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+ channelhandlercontext.close();
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+ bytebuf.release();
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+ flag = false;
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+ return;
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+ }
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+ s = String.format(Locale.ROOT, "%s\u00a7%d\u00a7%d", com.destroystokyo.paper.network.PaperLegacyStatusClient.getUnformattedMotd(event), event.getNumPlayers(), event.getMaxPlayers());
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+ // Paper end
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LegacyQueryHandler.sendFlushAndClose(channelhandlercontext, LegacyQueryHandler.createLegacyDisconnectPacket(channelhandlercontext.alloc(), s));
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} else {
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if (bytebuf.readUnsignedByte() != 1) {
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@@ -75,7 +86,18 @@ public class LegacyQueryHandler extends ChannelInboundHandlerAdapter {
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LegacyQueryHandler.LOGGER.debug("Ping: (1.4-1.5.x) from {}", socketaddress);
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}
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- if (s == null) s = LegacyQueryHandler.createVersion1Response(this.server, event); // CraftBukkit // Paper
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+ if (s == null) {
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+ // Paper start - Call PaperServerListPingEvent and use results
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+ event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(net.minecraft.server.MinecraftServer.getServer(), (java.net.InetSocketAddress) socketaddress, 127, null); // Paper
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+ if (event == null) {
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+ channelhandlercontext.close();
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+ bytebuf.release();
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+ flag = false;
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+ return;
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+ }
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+ s = String.format(Locale.ROOT, "\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", new Object[] { event.getProtocolVersion(), this.server.getServerVersion(), event.getMotd(), event.getNumPlayers(), event.getMaxPlayers()}); // CraftBukkit
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+ // Paper end
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+ }
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LegacyQueryHandler.sendFlushAndClose(channelhandlercontext, LegacyQueryHandler.createLegacyDisconnectPacket(channelhandlercontext.alloc(), s));
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}
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@@ -187,8 +209,16 @@ public class LegacyQueryHandler extends ChannelInboundHandlerAdapter {
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LOGGER.debug("Ping: (1.6) from {}", ctx.channel().remoteAddress());
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- String response = String.format("\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d",
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- Byte.MAX_VALUE, server.getServerVersion(), server.getMotd(), server.getPlayerCount(), server.getMaxPlayers());
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+ java.net.InetSocketAddress virtualHost = com.destroystokyo.paper.network.PaperNetworkClient.prepareVirtualHost(host, port);
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+ com.destroystokyo.paper.event.server.PaperServerListPingEvent event = com.destroystokyo.paper.network.PaperLegacyStatusClient.processRequest(
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+ server, (java.net.InetSocketAddress) ctx.channel().remoteAddress(), protocolVersion, virtualHost);
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+ if (event == null) {
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+ ctx.close();
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+ return null;
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+ }
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+
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+ String response = String.format("\u00a71\u0000%d\u0000%s\u0000%s\u0000%d\u0000%d", event.getProtocolVersion(), event.getVersion(),
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+ com.destroystokyo.paper.network.PaperLegacyStatusClient.getMotd(event), event.getNumPlayers(), event.getMaxPlayers());
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return response;
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}
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