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PaperMC/patches/server/0318-Fire-event-on-GS4-query.patch
MiniDigger 4104545b11 remove system property for book size limits 
"It was from a different time before books were as jank as they are now. As time has gone on they've only proven to be worse and worse."
2021-06-17 21:12:40 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Date: Sun, 17 Mar 2019 21:46:56 +0200
Subject: [PATCH] Fire event on GS4 query
diff --git a/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java b/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
index 51cb2644aa516a59e19fecb308d519dbc7e5fb11..e548aa0ca4e1e94ab628614b44fc11568ca3beff 100644
--- a/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
+++ b/src/main/java/net/minecraft/server/rcon/NetworkDataOutputStream.java
@@ -22,6 +22,16 @@ public class NetworkDataOutputStream {
this.dataOutputStream.write(0);
}
+ // Paper start - unchecked exception variant to use in Stream API
+ public void writeStringUnchecked(String string) {
+ try {
+ writeString(string);
+ } catch (IOException e) {
+ com.destroystokyo.paper.util.SneakyThrow.sneaky(e);
+ }
+ }
+ // Paper end
+
public void write(int value) throws IOException {
this.dataOutputStream.write(value);
}
diff --git a/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java b/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
index 02bb0b2df37ead741adfef38d7479ba6f691dc2d..4632e8f0d27057bf3c47057124b347237ab58111 100644
--- a/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
+++ b/src/main/java/net/minecraft/server/rcon/thread/QueryThreadGs4.java
@@ -94,33 +94,52 @@ public class QueryThreadGs4 extends GenericThread {
if (3 <= i && -2 == bs[0] && -3 == bs[1]) {
LOGGER.debug("Packet '{}' [{}]", PktUtils.toHexString(bs[2]), socketAddress);
switch(bs[2]) {
- case 0:
- if (!this.validChallenge(packet)) {
- LOGGER.debug("Invalid challenge [{}]", (Object)socketAddress);
- return false;
- } else if (15 == i) {
- this.sendTo(this.buildRuleResponse(packet), packet);
- LOGGER.debug("Rules [{}]", (Object)socketAddress);
- } else {
- NetworkDataOutputStream networkDataOutputStream = new NetworkDataOutputStream(1460);
- networkDataOutputStream.write(0);
- networkDataOutputStream.writeBytes(this.getIdentBytes(packet.getSocketAddress()));
- networkDataOutputStream.writeString(this.serverName);
- networkDataOutputStream.writeString("SMP");
- networkDataOutputStream.writeString(this.worldName);
- networkDataOutputStream.writeString(Integer.toString(this.serverInterface.getPlayerCount()));
- networkDataOutputStream.writeString(Integer.toString(this.maxPlayers));
- networkDataOutputStream.writeShort((short)this.serverPort);
- networkDataOutputStream.writeString(this.hostIp);
- this.sendTo(networkDataOutputStream.toByteArray(), packet);
- LOGGER.debug("Status [{}]", (Object)socketAddress);
- }
- default:
- return true;
- case 9:
- this.sendChallenge(packet);
- LOGGER.debug("Challenge [{}]", (Object)socketAddress);
- return true;
+ case 0:
+ if (!this.validChallenge(packet)) {
+ LOGGER.debug("Invalid challenge [{}]", (Object)socketAddress);
+ return false;
+ } else if (15 == i) {
+ this.sendTo(this.buildRuleResponse(packet), packet);
+ LOGGER.debug("Rules [{}]", (Object)socketAddress);
+ } else {
+ NetworkDataOutputStream networkDataOutputStream = new NetworkDataOutputStream(1460);
+ networkDataOutputStream.write(0);
+ networkDataOutputStream.writeBytes(this.getIdentBytes(packet.getSocketAddress()));
+
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.BASIC;
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
+ .motd(this.serverName)
+ .map(this.worldName)
+ .currentPlayers(this.serverInterface.getPlayerCount())
+ .maxPlayers(this.maxPlayers)
+ .port(this.serverPort)
+ .hostname(this.hostIp)
+ .gameVersion(this.serverInterface.getServerVersion())
+ .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
+ .build();
+ com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
+ new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, packet.getAddress(), queryResponse);
+ queryEvent.callEvent();
+ queryResponse = queryEvent.getResponse();
+
+ networkDataOutputStream.writeString(queryResponse.getMotd());
+ networkDataOutputStream.writeString("SMP");
+ networkDataOutputStream.writeString(queryResponse.getMap());
+ networkDataOutputStream.writeString(Integer.toString(queryResponse.getCurrentPlayers()));
+ networkDataOutputStream.writeString(Integer.toString(queryResponse.getMaxPlayers()));
+ networkDataOutputStream.writeShort((short) queryResponse.getPort());
+ networkDataOutputStream.writeString(queryResponse.getHostname());
+ // Paper end
+ this.sendTo(networkDataOutputStream.toByteArray(), packet);
+ LOGGER.debug("Status [{}]", (Object)socketAddress);
+ }
+ default:
+ return true;
+ case 9:
+ this.sendChallenge(packet);
+ LOGGER.debug("Challenge [{}]", (Object)socketAddress);
+ return true;
}
} else {
LOGGER.debug("Invalid packet [{}]", (Object)socketAddress);
@@ -146,37 +165,79 @@ public class QueryThreadGs4 extends GenericThread {
this.rulesResponse.writeString("splitnum");
this.rulesResponse.write(128);
this.rulesResponse.write(0);
+ // Paper start
+ // Pack plugins
+ java.util.List<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> plugins = java.util.Collections.emptyList();
+ org.bukkit.plugin.Plugin[] bukkitPlugins;
+ if (((net.minecraft.server.dedicated.DedicatedServer) this.serverInterface).server.getQueryPlugins() && (bukkitPlugins = org.bukkit.Bukkit.getPluginManager().getPlugins()).length > 0) {
+ plugins = java.util.stream.Stream.of(bukkitPlugins)
+ .map(plugin -> com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation.of(plugin.getName(), plugin.getDescription().getVersion()))
+ .collect(java.util.stream.Collectors.toList());
+ }
+
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse queryResponse = com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.builder()
+ .motd(this.serverName)
+ .map(this.worldName)
+ .currentPlayers(this.serverInterface.getPlayerCount())
+ .maxPlayers(this.maxPlayers)
+ .port(this.serverPort)
+ .hostname(this.hostIp)
+ .plugins(plugins)
+ .players(this.serverInterface.getPlayerNames())
+ .gameVersion(this.serverInterface.getServerVersion())
+ .serverVersion(org.bukkit.Bukkit.getServer().getName() + " on " + org.bukkit.Bukkit.getServer().getBukkitVersion())
+ .build();
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType queryType =
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryType.FULL;
+ com.destroystokyo.paper.event.server.GS4QueryEvent queryEvent =
+ new com.destroystokyo.paper.event.server.GS4QueryEvent(queryType, packet.getAddress(), queryResponse);
+ queryEvent.callEvent();
+ queryResponse = queryEvent.getResponse();
this.rulesResponse.writeString("hostname");
- this.rulesResponse.writeString(this.serverName);
+ this.rulesResponse.writeString(queryResponse.getMotd());
this.rulesResponse.writeString("gametype");
this.rulesResponse.writeString("SMP");
this.rulesResponse.writeString("game_id");
this.rulesResponse.writeString("MINECRAFT");
this.rulesResponse.writeString("version");
- this.rulesResponse.writeString(this.serverInterface.getServerVersion());
+ this.rulesResponse.writeString(queryResponse.getGameVersion());
this.rulesResponse.writeString("plugins");
- this.rulesResponse.writeString(this.serverInterface.getPluginNames());
+ java.lang.StringBuilder pluginsString = new java.lang.StringBuilder();
+ pluginsString.append(queryResponse.getServerVersion());
+ if (!queryResponse.getPlugins().isEmpty()) {
+ pluginsString.append(": ");
+ java.util.Iterator<com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation> iter = queryResponse.getPlugins().iterator();
+ while (iter.hasNext()) {
+ com.destroystokyo.paper.event.server.GS4QueryEvent.QueryResponse.PluginInformation info = iter.next();
+ pluginsString.append(info.getName());
+ if (info.getVersion() != null) {
+ pluginsString.append(' ').append(info.getVersion().replace(";", ","));
+ }
+ if (iter.hasNext()) {
+ pluginsString.append(';').append(' ');
+ }
+ }
+ }
+ this.rulesResponse.writeString(pluginsString.toString());
this.rulesResponse.writeString("map");
- this.rulesResponse.writeString(this.worldName);
+ this.rulesResponse.writeString(queryResponse.getMap());
this.rulesResponse.writeString("numplayers");
- this.rulesResponse.writeString("" + this.serverInterface.getPlayerCount());
+ this.rulesResponse.writeString(Integer.toString(queryResponse.getCurrentPlayers()));
this.rulesResponse.writeString("maxplayers");
- this.rulesResponse.writeString("" + this.maxPlayers);
+ this.rulesResponse.writeString(Integer.toString(queryResponse.getMaxPlayers()));
this.rulesResponse.writeString("hostport");
- this.rulesResponse.writeString("" + this.serverPort);
+ this.rulesResponse.writeString(Integer.toString(queryResponse.getPort()));
this.rulesResponse.writeString("hostip");
- this.rulesResponse.writeString(this.hostIp);
- this.rulesResponse.write(0);
- this.rulesResponse.write(1);
+ this.rulesResponse.writeString(queryResponse.getHostname());
+ // The "meaningless data" start, copied from above
+ this.rulesResponse.writeInt(0);
+ this.rulesResponse.writeInt(1);
this.rulesResponse.writeString("player_");
- this.rulesResponse.write(0);
- String[] strings = this.serverInterface.getPlayerNames();
-
- for(String string : strings) {
- this.rulesResponse.writeString(string);
- }
-
- this.rulesResponse.write(0);
+ this.rulesResponse.writeInt(0);
+ // "Meaningless data" end
+ queryResponse.getPlayers().forEach(this.rulesResponse::writeStringUnchecked);
+ this.rulesResponse.writeInt(0);
+ // Paper end
return this.rulesResponse.toByteArray();
}
}
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