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Remove obsolete AntiNocom

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Hut512
2026-09-22 00:59:47 +02:00
committed by fiercehut
parent cb6906e2ec
commit 06266a0dba
1 changed files with 0 additions and 82 deletions
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SpigotCore/SpigotCore_Main/src/de/steamwar/core/events/AntiNocom.java
-82
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@@ -1,82 +0,0 @@
/*
* This file is a part of the SteamWar software.
*
* Copyright (C) 2025 SteamWar.de-Serverteam
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package de.steamwar.core.events;
import com.comphenix.tinyprotocol.TinyProtocol;
import de.steamwar.core.Core;
import de.steamwar.linkage.Linked;
import de.steamwar.sql.SWException;
import de.steamwar.techhider.ProtocolUtils;
import net.minecraft.core.BlockPos;
import net.minecraft.network.protocol.game.ServerboundPlayerActionPacket;
import net.minecraft.network.protocol.game.ServerboundUseItemOnPacket;
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;
@Linked
public class AntiNocom implements Listener {
private final Map<Player, Integer> flags = new ConcurrentHashMap<>();
public AntiNocom() {
TinyProtocol.instance.addFilter(ServerboundPlayerActionPacket.class, this::onDig);
registerUseItem();
}
@EventHandler
public void onQuit(PlayerQuitEvent e) {
flags.remove(e.getPlayer());
}
private void registerUseItem() {
TinyProtocol.instance.addFilter(ServerboundUseItemOnPacket.class, (player, packet) -> {
BlockPos pos = packet.getHitResult().getBlockPos();
return isValid(player, "UseItem", pos.getX(), pos.getZ()) ? packet : null;
});
}
private ServerboundPlayerActionPacket onDig(Player player, ServerboundPlayerActionPacket packet) {
BlockPos pos = packet.getPos();
return isValid(player, "Dig", pos.getX(), pos.getZ()) ? 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 false;
}
}