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