SteamWar/SpigotCore
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Merge remote-tracking branch 'origin/master'
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Dieser Commit ist enthalten in:
yoyosource 2023-03-08 21:55:27 +01:00
Commit d35ef19ba3
4 geänderte Dateien mit 40 neuen und 22 gelöschten Zeilen

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@ -32,6 +32,7 @@ public class ChatWrapper8 implements ChatWrapper {
return chatComponentConstructor.invoke(text);
}
private static final Class<?> metadataPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutEntityMetadata");
private static final Reflection.FieldAccessor<Integer> metadataEntity = Reflection.getField(metadataPacket, int.class, 0);
private static final Reflection.FieldAccessor<List> metadataMetadata = Reflection.getField(metadataPacket, List.class, 0);
@Override

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@ -19,12 +19,9 @@
package de.steamwar.core;
import com.comphenix.tinyprotocol.Reflection;
public interface ChatWrapper {
ChatWrapper impl = VersionDependent.getVersionImpl(Core.getInstance());
Class<?> metadataPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutEntityMetadata");
Object stringToChatComponent(String text);

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@ -70,7 +70,10 @@ public class ErrorHandler extends Handler {
if(logRecord.getThrown() != null)
logRecord.getThrown().printStackTrace(new PrintStream(stacktraceOutput));
String stacktrace = stacktraceOutput.toString();
if(stacktrace.contains("POI data mismatch"))
if(stacktrace.contains("POI data mismatch") || stacktrace.contains("Newer version! Server downgrades are not supported!"))
return;
if(message.isEmpty() && stacktrace.isEmpty())
return;
try {
@ -140,6 +143,12 @@ public class ErrorHandler extends Handler {
startsWith.add("Biome with id");
startsWith.add("1.16 and 1.16.1 clients are only partially supported");
startsWith.add("Unable to parse CustomName from ");
startsWith.add("java.util.ConcurrentModificationException");
startsWith.add("com.destroystokyo.paper.exception.ServerInternalException: Attempted to place a tile entity");
startsWith.add("World: minecraft:overworld");
startsWith.add("Chunk coordinates: ");
startsWith.add("Failed to save history");
startsWith.add("\t... ");
ignoreStartsWith = Collections.unmodifiableList(startsWith);
List<String> contains = new ArrayList<>();

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@ -27,12 +27,20 @@ import de.steamwar.techhider.ProtocolUtils;
import de.steamwar.techhider.TechHider;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerQuitEvent;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
public class AntiNocom {
public class AntiNocom implements Listener {
private final Map<Player, Integer> flags = new ConcurrentHashMap<>();
public AntiNocom() {
Bukkit.getServer().getPluginManager().registerEvents(this, Core.getInstance());
TinyProtocol.instance.addFilter(blockDig, this::onDig);
if(Core.getVersion() > 8) {
@ -40,6 +48,11 @@ public class AntiNocom {
}
}
@EventHandler
public void onQuit(PlayerQuitEvent e) {
flags.remove(e.getPlayer());
}
private void registerUseItem() {
Class<?> useItem = Reflection.getClass("{nms.network.protocol.game}.PacketPlayInUseItem");
@ -56,16 +69,7 @@ public class AntiNocom {
TinyProtocol.instance.addFilter(useItem, (player, packet) -> {
Object pos = getPosition.apply(packet);
int x = TechHider.blockPositionX.get(pos);
int z = TechHider.blockPositionZ.get(pos);
if(!player.getWorld().isChunkLoaded(ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(z))) {
Bukkit.getScheduler().runTask(Core.getInstance(), () -> player.kickPlayer(null));
SWException.log(player.getName() + " kicked for using item on unloaded block (potential NoCom-DOS attack)", x + " " + z);
return null;
}
return packet;
return isValid(player, "UseItem", TechHider.blockPositionX.get(pos), TechHider.blockPositionZ.get(pos)) ? packet : null;
});
}
@ -73,13 +77,20 @@ public class AntiNocom {
private static final Reflection.FieldAccessor<?> digPosition = Reflection.getField(blockDig, TechHider.blockPosition, 0);
private Object onDig(Player player, Object packet) {
Object pos = digPosition.get(packet);
int x = TechHider.blockPositionX.get(pos);
int z = TechHider.blockPositionZ.get(pos);
if((x != 0 || z != 0) && !player.getWorld().isChunkLoaded(ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(z))) {
Bukkit.getScheduler().runTask(Core.getInstance(), () -> player.kickPlayer(null));
SWException.log(player.getName() + " kicked for digging an unloaded block (potential NoCom-DOS attack)", x + " " + z);
return null;
return isValid(player, "Dig", TechHider.blockPositionX.get(pos), TechHider.blockPositionZ.get(pos)) ? packet : null;
}
private boolean isValid(Player player, String type, int x, int z) {
if((x == 0 && z == 0) || player.getWorld().isChunkLoaded(ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(z)))
return true;
int amount = flags.compute(player, (p, a) -> a == null ? 1 : a+1);
if(amount % 8 == 0) { // Only after 8 and every 8 to reduce false flags and spam
if(amount == 8) // Schedule player kick only once
Bukkit.getScheduler().runTask(Core.getInstance(), () -> player.kickPlayer(null));
SWException.log(player.getName() + " kicked for potential NoCom-DOS attack", x + " " + z + " " + type + " " + amount);
}
return packet;
return false;
}
}