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AntiCrash (#225)

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This commit is contained in:
Soda5601
2023-02-12 00:08:42 +08:00
committed by GitHub
parent 37113decea
commit a48c7b3127
3 changed files with 63 additions and 0 deletions
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1
src/main/java/anticope/rejects/MeteorRejectsAddon.java
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@@ -33,6 +33,7 @@ public class MeteorRejectsAddon extends MeteorAddon {
// Modules
Modules modules = Modules.get();
modules.add(new AntiBot());
modules.add(new AntiCrash());
modules.add(new AntiSpawnpoint());
modules.add(new AntiVanish());
modules.add(new ArrowDmg());

61
src/main/java/anticope/rejects/modules/AntiCrash.java Normal file
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@@ -0,0 +1,61 @@
package anticope.rejects.modules;
import anticope.rejects.MeteorRejectsAddon;
import meteordevelopment.meteorclient.events.packets.PacketEvent;
import meteordevelopment.meteorclient.settings.BoolSetting;
import meteordevelopment.meteorclient.settings.Setting;
import meteordevelopment.meteorclient.settings.SettingGroup;
import meteordevelopment.meteorclient.systems.modules.Module;
import meteordevelopment.orbit.EventHandler;
import net.minecraft.network.packet.s2c.play.EntityVelocityUpdateS2CPacket;
import net.minecraft.network.packet.s2c.play.ExplosionS2CPacket;
import net.minecraft.network.packet.s2c.play.ParticleS2CPacket;
import net.minecraft.network.packet.s2c.play.PlayerPositionLookS2CPacket;
public class AntiCrash extends Module {
private final SettingGroup sgGeneral = settings.getDefaultGroup();
private final Setting<Boolean> log = sgGeneral.add(new BoolSetting.Builder()
.name("log")
.description("Logs when crash packet detected.")
.defaultValue(false)
.build()
);
public AntiCrash() {
super(MeteorRejectsAddon.CATEGORY, "anti-crash", "Attempts to cancel packets that may crash the client.");
}
@EventHandler
private void onPacketReceive(PacketEvent.Receive event) {
if (event.packet instanceof ExplosionS2CPacket packet) {
if (/* outside of world */ packet.getX() > 30_000_000 || packet.getY() > 30_000_000 || packet.getZ() > 30_000_000 || packet.getX() < -30_000_000 || packet.getY() < -30_000_000 || packet.getZ() < -30_000_000 ||
// power too high
packet.getRadius() > 1000 ||
// too many blocks
packet.getAffectedBlocks().size() > 100_000 ||
// too much knockback
packet.getPlayerVelocityX() > 30_000_000 || packet.getPlayerVelocityY() > 30_000_000 || packet.getPlayerVelocityZ() > 30_000_000
// knockback can be negative?
|| packet.getPlayerVelocityX() < -30_000_000 || packet.getPlayerVelocityY() < -30_000_000 || packet.getPlayerVelocityZ() < -30_000_000
) cancel(event);
} else if (event.packet instanceof ParticleS2CPacket packet) {
// too many particles
if (packet.getCount() > 100_000) cancel(event);
} else if (event.packet instanceof PlayerPositionLookS2CPacket packet) {
// out of world movement
if (packet.getX() > 30_000_000 || packet.getY() > 30_000_000 || packet.getZ() > 30_000_000 || packet.getX() < -30_000_000 || packet.getY() < -30_000_000 || packet.getZ() < -30_000_000)
cancel(event);
} else if (event.packet instanceof EntityVelocityUpdateS2CPacket packet) {
// velocity
if (packet.getVelocityX() > 30_000_000 || packet.getVelocityY() > 30_000_000 || packet.getVelocityZ() > 30_000_000
|| packet.getVelocityX() < -30_000_000 || packet.getVelocityY() < -30_000_000 || packet.getVelocityZ() < -30_000_000
) cancel(event);
}
}
private void cancel(PacketEvent.Receive event) {
if (log.get()) warning("Server attempts to crash you");
event.cancel();
}
}