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Paper/patches/server/0999-Anti-Xray.patch

1640 Zeilen
89 KiB
Diff

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: stonar96 <minecraft.stonar96@gmail.com>
Date: Thu, 25 Nov 2021 13:27:51 +0100
Subject: [PATCH] Anti-Xray
diff --git a/src/main/java/com/destroystokyo/paper/antixray/BitStorageReader.java b/src/main/java/com/destroystokyo/paper/antixray/BitStorageReader.java
new file mode 100644
index 0000000000000000000000000000000000000000..e448c26327b5f6189c3c52e698cff66c8f9ad81a
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/BitStorageReader.java
@@ -0,0 +1,51 @@
+package com.destroystokyo.paper.antixray;
+
+public final class BitStorageReader {
+
+ private byte[] buffer;
+ private int bits;
+ private int mask;
+ private int longInBufferIndex;
+ private int bitInLongIndex;
+ private long current;
+
+ public void setBuffer(byte[] buffer) {
+ this.buffer = buffer;
+ }
+
+ public void setBits(int bits) {
+ this.bits = bits;
+ mask = (1 << bits) - 1;
+ }
+
+ public void setIndex(int index) {
+ longInBufferIndex = index;
+ bitInLongIndex = 0;
+ init();
+ }
+
+ private void init() {
+ if (buffer.length > longInBufferIndex + 7) {
+ current = ((((long) buffer[longInBufferIndex]) << 56)
+ | (((long) buffer[longInBufferIndex + 1] & 0xff) << 48)
+ | (((long) buffer[longInBufferIndex + 2] & 0xff) << 40)
+ | (((long) buffer[longInBufferIndex + 3] & 0xff) << 32)
+ | (((long) buffer[longInBufferIndex + 4] & 0xff) << 24)
+ | (((long) buffer[longInBufferIndex + 5] & 0xff) << 16)
+ | (((long) buffer[longInBufferIndex + 6] & 0xff) << 8)
+ | (((long) buffer[longInBufferIndex + 7] & 0xff)));
+ }
+ }
+
+ public int read() {
+ if (bitInLongIndex + bits > 64) {
+ bitInLongIndex = 0;
+ longInBufferIndex += 8;
+ init();
+ }
+
+ int value = (int) (current >>> bitInLongIndex) & mask;
+ bitInLongIndex += bits;
+ return value;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/BitStorageWriter.java b/src/main/java/com/destroystokyo/paper/antixray/BitStorageWriter.java
new file mode 100644
index 0000000000000000000000000000000000000000..e4540ea278f2dc871cb6a3cb8897559bfd65e134
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/BitStorageWriter.java
@@ -0,0 +1,79 @@
+package com.destroystokyo.paper.antixray;
+
+public final class BitStorageWriter {
+
+ private byte[] buffer;
+ private int bits;
+ private long mask;
+ private int longInBufferIndex;
+ private int bitInLongIndex;
+ private long current;
+ private boolean dirty;
+
+ public void setBuffer(byte[] buffer) {
+ this.buffer = buffer;
+ }
+
+ public void setBits(int bits) {
+ this.bits = bits;
+ mask = (1L << bits) - 1;
+ }
+
+ public void setIndex(int index) {
+ longInBufferIndex = index;
+ bitInLongIndex = 0;
+ init();
+ }
+
+ private void init() {
+ if (buffer.length > longInBufferIndex + 7) {
+ current = ((((long) buffer[longInBufferIndex]) << 56)
+ | (((long) buffer[longInBufferIndex + 1] & 0xff) << 48)
+ | (((long) buffer[longInBufferIndex + 2] & 0xff) << 40)
+ | (((long) buffer[longInBufferIndex + 3] & 0xff) << 32)
+ | (((long) buffer[longInBufferIndex + 4] & 0xff) << 24)
+ | (((long) buffer[longInBufferIndex + 5] & 0xff) << 16)
+ | (((long) buffer[longInBufferIndex + 6] & 0xff) << 8)
+ | (((long) buffer[longInBufferIndex + 7] & 0xff)));
+ }
+
+ dirty = false;
+ }
+
+ public void flush() {
+ if (dirty && buffer.length > longInBufferIndex + 7) {
+ buffer[longInBufferIndex] = (byte) (current >> 56 & 0xff);
+ buffer[longInBufferIndex + 1] = (byte) (current >> 48 & 0xff);
+ buffer[longInBufferIndex + 2] = (byte) (current >> 40 & 0xff);
+ buffer[longInBufferIndex + 3] = (byte) (current >> 32 & 0xff);
+ buffer[longInBufferIndex + 4] = (byte) (current >> 24 & 0xff);
+ buffer[longInBufferIndex + 5] = (byte) (current >> 16 & 0xff);
+ buffer[longInBufferIndex + 6] = (byte) (current >> 8 & 0xff);
+ buffer[longInBufferIndex + 7] = (byte) (current & 0xff);
+ }
+ }
+
+ public void write(int value) {
+ if (bitInLongIndex + bits > 64) {
+ flush();
+ bitInLongIndex = 0;
+ longInBufferIndex += 8;
+ init();
+ }
+
+ current = current & ~(mask << bitInLongIndex) | (value & mask) << bitInLongIndex;
+ dirty = true;
+ bitInLongIndex += bits;
+ }
+
+ public void skip() {
+ bitInLongIndex += bits;
+
+ if (bitInLongIndex > 64) {
+ flush();
+ bitInLongIndex = bits;
+ longInBufferIndex += 8;
+ init();
+ }
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockController.java b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockController.java
new file mode 100644
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index 0000000000000000000000000000000000000000..52d2e2b744f91914802506e52a07161729bbcf3a
2021-11-29 12:55:13 +01:00
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockController.java
@@ -0,0 +1,45 @@
+package com.destroystokyo.paper.antixray;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
+import net.minecraft.network.protocol.game.ServerboundPlayerActionPacket;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.level.ServerPlayerGameMode;
+import net.minecraft.world.level.ChunkPos;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.chunk.LevelChunk;
+
+public class ChunkPacketBlockController {
+
+ public static final ChunkPacketBlockController NO_OPERATION_INSTANCE = new ChunkPacketBlockController();
+
+ protected ChunkPacketBlockController() {
+
+ }
+
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+ public BlockState[] getPresetBlockStates(Level level, ChunkPos chunkPos, int chunkSectionY) {
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+ return null;
+ }
+
+ public boolean shouldModify(ServerPlayer player, LevelChunk chunk) {
+ return false;
+ }
+
+ public ChunkPacketInfo<BlockState> getChunkPacketInfo(ClientboundLevelChunkWithLightPacket chunkPacket, LevelChunk chunk) {
+ return null;
+ }
+
+ public void modifyBlocks(ClientboundLevelChunkWithLightPacket chunkPacket, ChunkPacketInfo<BlockState> chunkPacketInfo) {
+ chunkPacket.setReady(true);
+ }
+
+ public void onBlockChange(Level level, BlockPos blockPos, BlockState newBlockState, BlockState oldBlockState, int flags, int maxUpdateDepth) {
+
+ }
+
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+ public void onPlayerLeftClickBlock(ServerPlayerGameMode serverPlayerGameMode, BlockPos blockPos, ServerboundPlayerActionPacket.Action action, Direction direction, int worldHeight, int sequence) {
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+
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java
new file mode 100644
index 0000000000000000000000000000000000000000..e7fe98ea30ae6d0baea3ec1f9f98a89502a49a12
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--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java
@@ -0,0 +1,676 @@
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+package com.destroystokyo.paper.antixray;
+
+import io.papermc.paper.configuration.WorldConfiguration;
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+import io.papermc.paper.configuration.type.EngineMode;
+import java.util.ArrayList;
+import java.util.LinkedHashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.function.IntSupplier;
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+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
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+import net.minecraft.core.registries.Registries;
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+import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
+import net.minecraft.network.protocol.game.ServerboundPlayerActionPacket;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.server.level.ServerPlayerGameMode;
+import net.minecraft.world.level.ChunkPos;
+import net.minecraft.world.level.Level;
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+import net.minecraft.world.level.biome.Biomes;
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+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.EntityBlock;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.chunk.EmptyLevelChunk;
+import net.minecraft.world.level.chunk.GlobalPalette;
+import net.minecraft.world.level.chunk.LevelChunk;
+import net.minecraft.world.level.chunk.LevelChunkSection;
+import net.minecraft.world.level.chunk.MissingPaletteEntryException;
+import net.minecraft.world.level.chunk.Palette;
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+import org.bukkit.Bukkit;
+
+public final class ChunkPacketBlockControllerAntiXray extends ChunkPacketBlockController {
+
+ private static final Palette<BlockState> GLOBAL_BLOCKSTATE_PALETTE = new GlobalPalette<>(Block.BLOCK_STATE_REGISTRY);
+ private static final LevelChunkSection EMPTY_SECTION = null;
+ private final Executor executor;
+ private final EngineMode engineMode;
+ private final int maxBlockHeight;
+ private final int updateRadius;
+ private final boolean usePermission;
+ private final BlockState[] presetBlockStates;
+ private final BlockState[] presetBlockStatesFull;
+ private final BlockState[] presetBlockStatesStone;
+ private final BlockState[] presetBlockStatesDeepslate;
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+ private final BlockState[] presetBlockStatesNetherrack;
+ private final BlockState[] presetBlockStatesEndStone;
+ private final int[] presetBlockStateBitsGlobal;
+ private final int[] presetBlockStateBitsStoneGlobal;
+ private final int[] presetBlockStateBitsDeepslateGlobal;
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+ private final int[] presetBlockStateBitsNetherrackGlobal;
+ private final int[] presetBlockStateBitsEndStoneGlobal;
+ private final boolean[] solidGlobal = new boolean[Block.BLOCK_STATE_REGISTRY.size()];
+ private final boolean[] obfuscateGlobal = new boolean[Block.BLOCK_STATE_REGISTRY.size()];
+ private final LevelChunkSection[] emptyNearbyChunkSections = {EMPTY_SECTION, EMPTY_SECTION, EMPTY_SECTION, EMPTY_SECTION};
+ private final int maxBlockHeightUpdatePosition;
+
+ public ChunkPacketBlockControllerAntiXray(Level level, Executor executor) {
+ this.executor = executor;
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+ WorldConfiguration.Anticheat.AntiXray paperWorldConfig = level.paperConfig().anticheat.antiXray;
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+ engineMode = paperWorldConfig.engineMode;
+ maxBlockHeight = paperWorldConfig.maxBlockHeight >> 4 << 4;
+ updateRadius = paperWorldConfig.updateRadius;
+ usePermission = paperWorldConfig.usePermission;
+ List<Block> toObfuscate;
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+
+ if (engineMode == EngineMode.HIDE) {
+ toObfuscate = paperWorldConfig.hiddenBlocks;
+ presetBlockStates = null;
+ presetBlockStatesFull = null;
+ presetBlockStatesStone = new BlockState[]{Blocks.STONE.defaultBlockState()};
+ presetBlockStatesDeepslate = new BlockState[]{Blocks.DEEPSLATE.defaultBlockState()};
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+ presetBlockStatesNetherrack = new BlockState[]{Blocks.NETHERRACK.defaultBlockState()};
+ presetBlockStatesEndStone = new BlockState[]{Blocks.END_STONE.defaultBlockState()};
+ presetBlockStateBitsGlobal = null;
+ presetBlockStateBitsStoneGlobal = new int[]{GLOBAL_BLOCKSTATE_PALETTE.idFor(Blocks.STONE.defaultBlockState())};
+ presetBlockStateBitsDeepslateGlobal = new int[]{GLOBAL_BLOCKSTATE_PALETTE.idFor(Blocks.DEEPSLATE.defaultBlockState())};
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+ presetBlockStateBitsNetherrackGlobal = new int[]{GLOBAL_BLOCKSTATE_PALETTE.idFor(Blocks.NETHERRACK.defaultBlockState())};
+ presetBlockStateBitsEndStoneGlobal = new int[]{GLOBAL_BLOCKSTATE_PALETTE.idFor(Blocks.END_STONE.defaultBlockState())};
+ } else {
+ toObfuscate = new ArrayList<>(paperWorldConfig.replacementBlocks);
+ List<BlockState> presetBlockStateList = new LinkedList<>();
+
+ for (Block block : paperWorldConfig.hiddenBlocks) {
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+
+ if (!(block instanceof EntityBlock)) {
+ toObfuscate.add(block);
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+ presetBlockStateList.add(block.defaultBlockState());
+ }
+ }
+
+ // The doc of the LinkedHashSet(Collection<? extends E>) constructor doesn't specify that the insertion order is the predictable iteration order of the specified Collection, although it is in the implementation
+ Set<BlockState> presetBlockStateSet = new LinkedHashSet<>();
+ // Therefore addAll(Collection<? extends E>) is used, which guarantees this order in the doc
+ presetBlockStateSet.addAll(presetBlockStateList);
+ presetBlockStates = presetBlockStateSet.isEmpty() ? new BlockState[]{Blocks.DIAMOND_ORE.defaultBlockState()} : presetBlockStateSet.toArray(new BlockState[0]);
+ presetBlockStatesFull = presetBlockStateSet.isEmpty() ? new BlockState[]{Blocks.DIAMOND_ORE.defaultBlockState()} : presetBlockStateList.toArray(new BlockState[0]);
+ presetBlockStatesStone = null;
+ presetBlockStatesDeepslate = null;
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+ presetBlockStatesNetherrack = null;
+ presetBlockStatesEndStone = null;
+ presetBlockStateBitsGlobal = new int[presetBlockStatesFull.length];
+
+ for (int i = 0; i < presetBlockStatesFull.length; i++) {
+ presetBlockStateBitsGlobal[i] = GLOBAL_BLOCKSTATE_PALETTE.idFor(presetBlockStatesFull[i]);
+ }
+
+ presetBlockStateBitsStoneGlobal = null;
+ presetBlockStateBitsDeepslateGlobal = null;
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+ presetBlockStateBitsNetherrackGlobal = null;
+ presetBlockStateBitsEndStoneGlobal = null;
+ }
+
+ for (Block block : toObfuscate) {
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+
+ // Don't obfuscate air because air causes unnecessary block updates and causes block updates to fail in the void
+ if (block != null && !block.defaultBlockState().isAir()) {
+ // Replace all block states of a specified block
+ for (BlockState blockState : block.getStateDefinition().getPossibleStates()) {
+ obfuscateGlobal[GLOBAL_BLOCKSTATE_PALETTE.idFor(blockState)] = true;
+ }
+ }
+ }
+
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+ EmptyLevelChunk emptyChunk = new EmptyLevelChunk(level, new ChunkPos(0, 0), MinecraftServer.getServer().registryAccess().registryOrThrow(Registries.BIOME).getHolderOrThrow(Biomes.PLAINS));
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+ BlockPos zeroPos = new BlockPos(0, 0, 0);
+
+ for (int i = 0; i < solidGlobal.length; i++) {
+ BlockState blockState = GLOBAL_BLOCKSTATE_PALETTE.valueFor(i);
+
+ if (blockState != null) {
+ solidGlobal[i] = blockState.isRedstoneConductor(emptyChunk, zeroPos)
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+ && blockState.getBlock() != Blocks.SPAWNER && blockState.getBlock() != Blocks.BARRIER && blockState.getBlock() != Blocks.SHULKER_BOX && blockState.getBlock() != Blocks.SLIME_BLOCK && blockState.getBlock() != Blocks.MANGROVE_ROOTS || paperWorldConfig.lavaObscures && blockState == Blocks.LAVA.defaultBlockState();
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+ // Comparing blockState == Blocks.LAVA.defaultBlockState() instead of blockState.getBlock() == Blocks.LAVA ensures that only "stationary lava" is used
+ // shulker box checks TE.
+ }
+ }
+
+ maxBlockHeightUpdatePosition = maxBlockHeight + updateRadius - 1;
+ }
+
+ private int getPresetBlockStatesFullLength() {
+ return engineMode == EngineMode.HIDE ? 1 : presetBlockStatesFull.length;
+ }
+
+ @Override
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+ public BlockState[] getPresetBlockStates(Level level, ChunkPos chunkPos, int chunkSectionY) {
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+ // Return the block states to be added to the paletted containers so that they can be used for obfuscation
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+ int bottomBlockY = chunkSectionY << 4;
+
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+ if (bottomBlockY < maxBlockHeight) {
+ if (engineMode == EngineMode.HIDE) {
+ return switch (level.getWorld().getEnvironment()) {
+ case NETHER -> presetBlockStatesNetherrack;
+ case THE_END -> presetBlockStatesEndStone;
+ default -> bottomBlockY < 0 ? presetBlockStatesDeepslate : presetBlockStatesStone;
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+ };
+ }
+
+ return presetBlockStates;
+ }
+
+ return null;
+ }
+
+ @Override
+ public boolean shouldModify(ServerPlayer player, LevelChunk chunk) {
+ return !usePermission || !player.getBukkitEntity().hasPermission("paper.antixray.bypass");
+ }
+
+ @Override
+ public ChunkPacketInfoAntiXray getChunkPacketInfo(ClientboundLevelChunkWithLightPacket chunkPacket, LevelChunk chunk) {
+ // Return a new instance to collect data and objects in the right state while creating the chunk packet for thread safe access later
+ return new ChunkPacketInfoAntiXray(chunkPacket, chunk, this);
+ }
+
+ @Override
+ public void modifyBlocks(ClientboundLevelChunkWithLightPacket chunkPacket, ChunkPacketInfo<BlockState> chunkPacketInfo) {
+ if (!(chunkPacketInfo instanceof ChunkPacketInfoAntiXray)) {
+ chunkPacket.setReady(true);
+ return;
+ }
+
+ if (!Bukkit.isPrimaryThread()) {
+ // Plugins?
+ MinecraftServer.getServer().scheduleOnMain(() -> modifyBlocks(chunkPacket, chunkPacketInfo));
+ return;
+ }
+
+ LevelChunk chunk = chunkPacketInfo.getChunk();
+ int x = chunk.getPos().x;
+ int z = chunk.getPos().z;
+ Level level = chunk.getLevel();
+ ((ChunkPacketInfoAntiXray) chunkPacketInfo).setNearbyChunks(level.getChunkIfLoaded(x - 1, z), level.getChunkIfLoaded(x + 1, z), level.getChunkIfLoaded(x, z - 1), level.getChunkIfLoaded(x, z + 1));
+ executor.execute((Runnable) chunkPacketInfo);
+ }
+
+ // Actually these fields should be variables inside the obfuscate method but in sync mode or with SingleThreadExecutor in async mode it's okay (even without ThreadLocal)
+ // If an ExecutorService with multiple threads is used, ThreadLocal must be used here
+ private final ThreadLocal<int[]> presetBlockStateBits = ThreadLocal.withInitial(() -> new int[getPresetBlockStatesFullLength()]);
+ private static final ThreadLocal<boolean[]> SOLID = ThreadLocal.withInitial(() -> new boolean[Block.BLOCK_STATE_REGISTRY.size()]);
+ private static final ThreadLocal<boolean[]> OBFUSCATE = ThreadLocal.withInitial(() -> new boolean[Block.BLOCK_STATE_REGISTRY.size()]);
+ // These boolean arrays represent chunk layers, true means don't obfuscate, false means obfuscate
+ private static final ThreadLocal<boolean[][]> CURRENT = ThreadLocal.withInitial(() -> new boolean[16][16]);
+ private static final ThreadLocal<boolean[][]> NEXT = ThreadLocal.withInitial(() -> new boolean[16][16]);
+ private static final ThreadLocal<boolean[][]> NEXT_NEXT = ThreadLocal.withInitial(() -> new boolean[16][16]);
+
+ public void obfuscate(ChunkPacketInfoAntiXray chunkPacketInfoAntiXray) {
+ int[] presetBlockStateBits = this.presetBlockStateBits.get();
+ boolean[] solid = SOLID.get();
+ boolean[] obfuscate = OBFUSCATE.get();
+ boolean[][] current = CURRENT.get();
+ boolean[][] next = NEXT.get();
+ boolean[][] nextNext = NEXT_NEXT.get();
+ // bitStorageReader, bitStorageWriter and nearbyChunkSections could also be reused (with ThreadLocal if necessary) but it's not worth it
+ BitStorageReader bitStorageReader = new BitStorageReader();
+ BitStorageWriter bitStorageWriter = new BitStorageWriter();
+ LevelChunkSection[] nearbyChunkSections = new LevelChunkSection[4];
+ LevelChunk chunk = chunkPacketInfoAntiXray.getChunk();
+ Level level = chunk.getLevel();
+ int maxChunkSectionIndex = Math.min((maxBlockHeight >> 4) - chunk.getMinSection(), chunk.getSectionsCount()) - 1;
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+ boolean[] solidTemp = null;
+ boolean[] obfuscateTemp = null;
+ bitStorageReader.setBuffer(chunkPacketInfoAntiXray.getBuffer());
+ bitStorageWriter.setBuffer(chunkPacketInfoAntiXray.getBuffer());
+ int numberOfBlocks = presetBlockStateBits.length;
+ // Keep the lambda expressions as simple as possible. They are used very frequently.
+ LayeredIntSupplier random = numberOfBlocks == 1 ? (() -> 0) : engineMode == EngineMode.OBFUSCATE_LAYER ? new LayeredIntSupplier() {
+ // engine-mode: 3
+ private int state;
+ private int next;
+
+ {
+ while ((state = ThreadLocalRandom.current().nextInt()) == 0) ;
+ }
+
+ @Override
+ public void nextLayer() {
+ // https://en.wikipedia.org/wiki/Xorshift
+ state ^= state << 13;
+ state ^= state >>> 17;
+ state ^= state << 5;
+ // https://www.pcg-random.org/posts/bounded-rands.html
+ next = (int) ((Integer.toUnsignedLong(state) * numberOfBlocks) >>> 32);
+ }
+
+ @Override
+ public int getAsInt() {
+ return next;
+ }
+ } : new LayeredIntSupplier() {
+ // engine-mode: 2
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+ private int state;
+
+ {
+ while ((state = ThreadLocalRandom.current().nextInt()) == 0) ;
+ }
+
+ @Override
+ public int getAsInt() {
+ // https://en.wikipedia.org/wiki/Xorshift
+ state ^= state << 13;
+ state ^= state >>> 17;
+ state ^= state << 5;
+ // https://www.pcg-random.org/posts/bounded-rands.html
+ return (int) ((Integer.toUnsignedLong(state) * numberOfBlocks) >>> 32);
+ }
+ };
+
+ for (int chunkSectionIndex = 0; chunkSectionIndex <= maxChunkSectionIndex; chunkSectionIndex++) {
+ if (chunkPacketInfoAntiXray.isWritten(chunkSectionIndex) && chunkPacketInfoAntiXray.getPresetValues(chunkSectionIndex) != null) {
+ int[] presetBlockStateBitsTemp;
+
+ if (chunkPacketInfoAntiXray.getPalette(chunkSectionIndex) instanceof GlobalPalette) {
+ if (engineMode == EngineMode.HIDE) {
+ presetBlockStateBitsTemp = switch (level.getWorld().getEnvironment()) {
+ case NETHER -> presetBlockStateBitsNetherrackGlobal;
+ case THE_END -> presetBlockStateBitsEndStoneGlobal;
+ default -> chunkSectionIndex + chunk.getMinSection() < 0 ? presetBlockStateBitsDeepslateGlobal : presetBlockStateBitsStoneGlobal;
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+ };
+ } else {
+ presetBlockStateBitsTemp = presetBlockStateBitsGlobal;
+ }
+ } else {
+ // If it's presetBlockStates, use this.presetBlockStatesFull instead
+ BlockState[] presetBlockStatesFull = chunkPacketInfoAntiXray.getPresetValues(chunkSectionIndex) == presetBlockStates ? this.presetBlockStatesFull : chunkPacketInfoAntiXray.getPresetValues(chunkSectionIndex);
+ presetBlockStateBitsTemp = presetBlockStateBits;
+
+ for (int i = 0; i < presetBlockStateBitsTemp.length; i++) {
+ // This is thread safe because we only request IDs that are guaranteed to be in the palette and are visible
+ // For more details see the comments in the readPalette method
+ presetBlockStateBitsTemp[i] = chunkPacketInfoAntiXray.getPalette(chunkSectionIndex).idFor(presetBlockStatesFull[i]);
+ }
+ }
+
+ bitStorageWriter.setIndex(chunkPacketInfoAntiXray.getIndex(chunkSectionIndex));
+
+ // Check if the chunk section below was not obfuscated
+ if (chunkSectionIndex == 0 || !chunkPacketInfoAntiXray.isWritten(chunkSectionIndex - 1) || chunkPacketInfoAntiXray.getPresetValues(chunkSectionIndex - 1) == null) {
+ // If so, initialize some stuff
+ bitStorageReader.setBits(chunkPacketInfoAntiXray.getBits(chunkSectionIndex));
+ bitStorageReader.setIndex(chunkPacketInfoAntiXray.getIndex(chunkSectionIndex));
+ solidTemp = readPalette(chunkPacketInfoAntiXray.getPalette(chunkSectionIndex), solid, solidGlobal);
+ obfuscateTemp = readPalette(chunkPacketInfoAntiXray.getPalette(chunkSectionIndex), obfuscate, obfuscateGlobal);
+ // Read the blocks of the upper layer of the chunk section below if it exists
+ LevelChunkSection belowChunkSection = null;
+ boolean skipFirstLayer = chunkSectionIndex == 0 || (belowChunkSection = chunk.getSections()[chunkSectionIndex - 1]) == EMPTY_SECTION;
+
+ for (int z = 0; z < 16; z++) {
+ for (int x = 0; x < 16; x++) {
+ current[z][x] = true;
+ next[z][x] = skipFirstLayer || isTransparent(belowChunkSection, x, 15, z);
+ }
+ }
+
+ // Abuse the obfuscateLayer method to read the blocks of the first layer of the current chunk section
+ bitStorageWriter.setBits(0);
+ obfuscateLayer(-1, bitStorageReader, bitStorageWriter, solidTemp, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, emptyNearbyChunkSections, random);
+ }
+
+ bitStorageWriter.setBits(chunkPacketInfoAntiXray.getBits(chunkSectionIndex));
+ nearbyChunkSections[0] = chunkPacketInfoAntiXray.getNearbyChunks()[0] == null ? EMPTY_SECTION : chunkPacketInfoAntiXray.getNearbyChunks()[0].getSections()[chunkSectionIndex];
+ nearbyChunkSections[1] = chunkPacketInfoAntiXray.getNearbyChunks()[1] == null ? EMPTY_SECTION : chunkPacketInfoAntiXray.getNearbyChunks()[1].getSections()[chunkSectionIndex];
+ nearbyChunkSections[2] = chunkPacketInfoAntiXray.getNearbyChunks()[2] == null ? EMPTY_SECTION : chunkPacketInfoAntiXray.getNearbyChunks()[2].getSections()[chunkSectionIndex];
+ nearbyChunkSections[3] = chunkPacketInfoAntiXray.getNearbyChunks()[3] == null ? EMPTY_SECTION : chunkPacketInfoAntiXray.getNearbyChunks()[3].getSections()[chunkSectionIndex];
+
+ // Obfuscate all layers of the current chunk section except the upper one
+ for (int y = 0; y < 15; y++) {
+ boolean[][] temp = current;
+ current = next;
+ next = nextNext;
+ nextNext = temp;
+ random.nextLayer();
2021-11-29 12:55:13 +01:00
+ obfuscateLayer(y, bitStorageReader, bitStorageWriter, solidTemp, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, nearbyChunkSections, random);
+ }
+
+ // Check if the chunk section above doesn't need obfuscation
+ if (chunkSectionIndex == maxChunkSectionIndex || !chunkPacketInfoAntiXray.isWritten(chunkSectionIndex + 1) || chunkPacketInfoAntiXray.getPresetValues(chunkSectionIndex + 1) == null) {
+ // If so, obfuscate the upper layer of the current chunk section by reading blocks of the first layer from the chunk section above if it exists
+ LevelChunkSection aboveChunkSection;
+
+ if (chunkSectionIndex != chunk.getSectionsCount() - 1 && (aboveChunkSection = chunk.getSections()[chunkSectionIndex + 1]) != EMPTY_SECTION) {
+ boolean[][] temp = current;
+ current = next;
+ next = nextNext;
+ nextNext = temp;
+
+ for (int z = 0; z < 16; z++) {
+ for (int x = 0; x < 16; x++) {
+ if (isTransparent(aboveChunkSection, x, 0, z)) {
+ current[z][x] = true;
+ }
+ }
+ }
+
+ // There is nothing to read anymore
+ bitStorageReader.setBits(0);
+ solid[0] = true;
+ random.nextLayer();
2021-11-29 12:55:13 +01:00
+ obfuscateLayer(15, bitStorageReader, bitStorageWriter, solid, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, nearbyChunkSections, random);
+ }
+ } else {
+ // If not, initialize the reader and other stuff for the chunk section above to obfuscate the upper layer of the current chunk section
+ bitStorageReader.setBits(chunkPacketInfoAntiXray.getBits(chunkSectionIndex + 1));
+ bitStorageReader.setIndex(chunkPacketInfoAntiXray.getIndex(chunkSectionIndex + 1));
+ solidTemp = readPalette(chunkPacketInfoAntiXray.getPalette(chunkSectionIndex + 1), solid, solidGlobal);
+ obfuscateTemp = readPalette(chunkPacketInfoAntiXray.getPalette(chunkSectionIndex + 1), obfuscate, obfuscateGlobal);
+ boolean[][] temp = current;
+ current = next;
+ next = nextNext;
+ nextNext = temp;
+ random.nextLayer();
2021-11-29 12:55:13 +01:00
+ obfuscateLayer(15, bitStorageReader, bitStorageWriter, solidTemp, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, nearbyChunkSections, random);
+ }
+
+ bitStorageWriter.flush();
+ }
+ }
+
+ chunkPacketInfoAntiXray.getChunkPacket().setReady(true);
+ }
+
+ private void obfuscateLayer(int y, BitStorageReader bitStorageReader, BitStorageWriter bitStorageWriter, boolean[] solid, boolean[] obfuscate, int[] presetBlockStateBits, boolean[][] current, boolean[][] next, boolean[][] nextNext, LevelChunkSection[] nearbyChunkSections, IntSupplier random) {
+ // First block of first line
+ int bits = bitStorageReader.read();
+
+ if (nextNext[0][0] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[0][1] = true;
+ next[1][0] = true;
+ } else {
+ if (current[0][0] || isTransparent(nearbyChunkSections[2], 0, y, 15) || isTransparent(nearbyChunkSections[0], 15, y, 0)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[0][0] = true;
+ }
+
+ // First line
+ for (int x = 1; x < 15; x++) {
+ bits = bitStorageReader.read();
+
+ if (nextNext[0][x] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[0][x - 1] = true;
+ next[0][x + 1] = true;
+ next[1][x] = true;
+ } else {
+ if (current[0][x] || isTransparent(nearbyChunkSections[2], x, y, 15)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[0][x] = true;
+ }
+ }
+
+ // Last block of first line
+ bits = bitStorageReader.read();
+
+ if (nextNext[0][15] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[0][14] = true;
+ next[1][15] = true;
+ } else {
+ if (current[0][15] || isTransparent(nearbyChunkSections[2], 15, y, 15) || isTransparent(nearbyChunkSections[1], 0, y, 0)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[0][15] = true;
+ }
+
+ // All inner lines
+ for (int z = 1; z < 15; z++) {
+ // First block
+ bits = bitStorageReader.read();
+
+ if (nextNext[z][0] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[z][1] = true;
+ next[z - 1][0] = true;
+ next[z + 1][0] = true;
+ } else {
+ if (current[z][0] || isTransparent(nearbyChunkSections[0], 15, y, z)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[z][0] = true;
+ }
+
+ // All inner blocks
+ for (int x = 1; x < 15; x++) {
+ bits = bitStorageReader.read();
+
+ if (nextNext[z][x] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[z][x - 1] = true;
+ next[z][x + 1] = true;
+ next[z - 1][x] = true;
+ next[z + 1][x] = true;
+ } else {
+ if (current[z][x]) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[z][x] = true;
+ }
+ }
+
+ // Last block
+ bits = bitStorageReader.read();
+
+ if (nextNext[z][15] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[z][14] = true;
+ next[z - 1][15] = true;
+ next[z + 1][15] = true;
+ } else {
+ if (current[z][15] || isTransparent(nearbyChunkSections[1], 0, y, z)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[z][15] = true;
+ }
+ }
+
+ // First block of last line
+ bits = bitStorageReader.read();
+
+ if (nextNext[15][0] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[15][1] = true;
+ next[14][0] = true;
+ } else {
+ if (current[15][0] || isTransparent(nearbyChunkSections[3], 0, y, 0) || isTransparent(nearbyChunkSections[0], 15, y, 15)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[15][0] = true;
+ }
+
+ // Last line
+ for (int x = 1; x < 15; x++) {
+ bits = bitStorageReader.read();
+
+ if (nextNext[15][x] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[15][x - 1] = true;
+ next[15][x + 1] = true;
+ next[14][x] = true;
+ } else {
+ if (current[15][x] || isTransparent(nearbyChunkSections[3], x, y, 0)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[15][x] = true;
+ }
+ }
+
+ // Last block of last line
+ bits = bitStorageReader.read();
+
+ if (nextNext[15][15] = !solid[bits]) {
+ bitStorageWriter.skip();
+ next[15][14] = true;
+ next[14][15] = true;
+ } else {
+ if (current[15][15] || isTransparent(nearbyChunkSections[3], 15, y, 0) || isTransparent(nearbyChunkSections[1], 0, y, 15)) {
+ bitStorageWriter.skip();
+ } else {
+ bitStorageWriter.write(presetBlockStateBits[random.getAsInt()]);
+ }
+ }
+
+ if (!obfuscate[bits]) {
+ next[15][15] = true;
+ }
+ }
+
+ private boolean isTransparent(LevelChunkSection chunkSection, int x, int y, int z) {
+ if (chunkSection == EMPTY_SECTION) {
+ return true;
+ }
+
+ try {
+ return !solidGlobal[GLOBAL_BLOCKSTATE_PALETTE.idFor(chunkSection.getBlockState(x, y, z))];
+ } catch (MissingPaletteEntryException e) {
+ // Race condition / visibility issue / no happens-before relationship
+ // We don't care and treat the block as transparent
+ // Internal implementation details of PalettedContainer, LinearPalette, HashMapPalette, CrudeIncrementalIntIdentityHashBiMap, ... guarantee us that no (other) exceptions will occur
+ return true;
+ }
+ }
+
+ private boolean[] readPalette(Palette<BlockState> palette, boolean[] temp, boolean[] global) {
+ if (palette instanceof GlobalPalette) {
+ return global;
+ }
+
+ try {
+ for (int i = 0; i < palette.getSize(); i++) {
+ temp[i] = global[GLOBAL_BLOCKSTATE_PALETTE.idFor(palette.valueFor(i))];
+ }
+ } catch (MissingPaletteEntryException e) {
+ // Race condition / visibility issue / no happens-before relationship
+ // We don't care because we at least see the state as it was when the chunk packet was created
+ // Internal implementation details of PalettedContainer, LinearPalette, HashMapPalette, CrudeIncrementalIntIdentityHashBiMap, ... guarantee us that no (other) exceptions will occur until we have all the data that we need here
+ // Since all palettes have a fixed initial maximum size and there is no internal restructuring and no values are removed from palettes, we are also guaranteed to see the data
+ }
+
+ return temp;
+ }
+
+ @Override
+ public void onBlockChange(Level level, BlockPos blockPos, BlockState newBlockState, BlockState oldBlockState, int flags, int maxUpdateDepth) {
+ if (oldBlockState != null && solidGlobal[GLOBAL_BLOCKSTATE_PALETTE.idFor(oldBlockState)] && !solidGlobal[GLOBAL_BLOCKSTATE_PALETTE.idFor(newBlockState)] && blockPos.getY() <= maxBlockHeightUpdatePosition) {
+ updateNearbyBlocks(level, blockPos);
+ }
+ }
+
+ @Override
2022-07-18 12:30:31 +02:00
+ public void onPlayerLeftClickBlock(ServerPlayerGameMode serverPlayerGameMode, BlockPos blockPos, ServerboundPlayerActionPacket.Action action, Direction direction, int worldHeight, int sequence) {
2021-11-29 12:55:13 +01:00
+ if (blockPos.getY() <= maxBlockHeightUpdatePosition) {
+ updateNearbyBlocks(serverPlayerGameMode.level, blockPos);
+ }
+ }
+
+ private void updateNearbyBlocks(Level level, BlockPos blockPos) {
+ if (updateRadius >= 2) {
+ BlockPos temp = blockPos.west();
+ updateBlock(level, temp);
+ updateBlock(level, temp.west());
+ updateBlock(level, temp.below());
+ updateBlock(level, temp.above());
+ updateBlock(level, temp.north());
+ updateBlock(level, temp.south());
+ updateBlock(level, temp = blockPos.east());
+ updateBlock(level, temp.east());
+ updateBlock(level, temp.below());
+ updateBlock(level, temp.above());
+ updateBlock(level, temp.north());
+ updateBlock(level, temp.south());
+ updateBlock(level, temp = blockPos.below());
+ updateBlock(level, temp.below());
+ updateBlock(level, temp.north());
+ updateBlock(level, temp.south());
+ updateBlock(level, temp = blockPos.above());
+ updateBlock(level, temp.above());
+ updateBlock(level, temp.north());
+ updateBlock(level, temp.south());
+ updateBlock(level, temp = blockPos.north());
+ updateBlock(level, temp.north());
+ updateBlock(level, temp = blockPos.south());
+ updateBlock(level, temp.south());
+ } else if (updateRadius == 1) {
+ updateBlock(level, blockPos.west());
+ updateBlock(level, blockPos.east());
+ updateBlock(level, blockPos.below());
+ updateBlock(level, blockPos.above());
+ updateBlock(level, blockPos.north());
+ updateBlock(level, blockPos.south());
+ } else {
+ // Do nothing if updateRadius <= 0 (test mode)
+ }
+ }
+
+ private void updateBlock(Level level, BlockPos blockPos) {
+ BlockState blockState = level.getBlockStateIfLoaded(blockPos);
2021-11-29 12:55:13 +01:00
+
+ if (blockState != null && obfuscateGlobal[GLOBAL_BLOCKSTATE_PALETTE.idFor(blockState)]) {
+ ((ServerLevel) level).getChunkSource().blockChanged(blockPos);
+ }
+ }
+
+ @FunctionalInterface
+ private interface LayeredIntSupplier extends IntSupplier {
+ default void nextLayer() {
+
+ }
+ }
2021-11-29 12:55:13 +01:00
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfo.java b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfo.java
new file mode 100644
index 0000000000000000000000000000000000000000..d98a3f5c54c67a673eb7dc456dd039cd78f9c34d
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfo.java
@@ -0,0 +1,80 @@
+package com.destroystokyo.paper.antixray;
+
+import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
+import net.minecraft.world.level.chunk.LevelChunk;
+import net.minecraft.world.level.chunk.Palette;
+
+public class ChunkPacketInfo<T> {
+
+ private final ClientboundLevelChunkWithLightPacket chunkPacket;
+ private final LevelChunk chunk;
+ private final int[] bits;
+ private final Object[] palettes;
+ private final int[] indexes;
+ private final Object[][] presetValues;
+ private byte[] buffer;
+
+ public ChunkPacketInfo(ClientboundLevelChunkWithLightPacket chunkPacket, LevelChunk chunk) {
+ this.chunkPacket = chunkPacket;
+ this.chunk = chunk;
+ int sections = chunk.getSectionsCount();
+ bits = new int[sections];
+ palettes = new Object[sections];
+ indexes = new int[sections];
+ presetValues = new Object[sections][];
+ }
+
+ public ClientboundLevelChunkWithLightPacket getChunkPacket() {
+ return chunkPacket;
+ }
+
+ public LevelChunk getChunk() {
+ return chunk;
+ }
+
+ public byte[] getBuffer() {
+ return buffer;
+ }
+
+ public void setBuffer(byte[] buffer) {
+ this.buffer = buffer;
+ }
+
+ public int getBits(int chunkSectionIndex) {
+ return bits[chunkSectionIndex];
+ }
+
+ public void setBits(int chunkSectionIndex, int bits) {
+ this.bits[chunkSectionIndex] = bits;
+ }
+
+ @SuppressWarnings("unchecked")
+ public Palette<T> getPalette(int chunkSectionIndex) {
+ return (Palette<T>) palettes[chunkSectionIndex];
+ }
+
+ public void setPalette(int chunkSectionIndex, Palette<T> palette) {
+ palettes[chunkSectionIndex] = palette;
+ }
+
+ public int getIndex(int chunkSectionIndex) {
+ return indexes[chunkSectionIndex];
+ }
+
+ public void setIndex(int chunkSectionIndex, int index) {
+ indexes[chunkSectionIndex] = index;
+ }
+
+ @SuppressWarnings("unchecked")
+ public T[] getPresetValues(int chunkSectionIndex) {
+ return (T[]) presetValues[chunkSectionIndex];
+ }
+
+ public void setPresetValues(int chunkSectionIndex, T[] presetValues) {
+ this.presetValues[chunkSectionIndex] = presetValues;
+ }
+
+ public boolean isWritten(int chunkSectionIndex) {
+ return bits[chunkSectionIndex] != 0;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfoAntiXray.java b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfoAntiXray.java
new file mode 100644
index 0000000000000000000000000000000000000000..80a2dfb266ae1221680a7b24fee2f7e2a8330b7d
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfoAntiXray.java
@@ -0,0 +1,29 @@
+package com.destroystokyo.paper.antixray;
+
+import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.chunk.LevelChunk;
+
+public final class ChunkPacketInfoAntiXray extends ChunkPacketInfo<BlockState> implements Runnable {
+
+ private final ChunkPacketBlockControllerAntiXray chunkPacketBlockControllerAntiXray;
+ private LevelChunk[] nearbyChunks;
+
+ public ChunkPacketInfoAntiXray(ClientboundLevelChunkWithLightPacket chunkPacket, LevelChunk chunk, ChunkPacketBlockControllerAntiXray chunkPacketBlockControllerAntiXray) {
+ super(chunkPacket, chunk);
+ this.chunkPacketBlockControllerAntiXray = chunkPacketBlockControllerAntiXray;
+ }
+
+ public LevelChunk[] getNearbyChunks() {
+ return nearbyChunks;
+ }
+
+ public void setNearbyChunks(LevelChunk... nearbyChunks) {
+ this.nearbyChunks = nearbyChunks;
+ }
+
+ @Override
+ public void run() {
+ chunkPacketBlockControllerAntiXray.obfuscate(this);
+ }
+}
2023-03-15 01:21:35 +01:00
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundChunksBiomesPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundChunksBiomesPacket.java
2024-04-25 11:42:10 +02:00
index ccc8c32c27c19cb0f0b581ca6693cfa737cb1de1..3c1cad5c2b34047cec44734ba4e8348cabec6f80 100644
2023-03-15 01:21:35 +01:00
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundChunksBiomesPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundChunksBiomesPacket.java
2024-04-25 11:42:10 +02:00
@@ -70,8 +70,10 @@ public record ClientboundChunksBiomesPacket(List<ClientboundChunksBiomesPacket.C
2023-06-09 06:29:58 +02:00
}
2023-03-15 01:21:35 +01:00
public static void extractChunkData(FriendlyByteBuf buf, LevelChunk chunk) {
2023-06-09 06:29:58 +02:00
+ int chunkSectionIndex = 0; // Paper - Anti-Xray
for (LevelChunkSection levelChunkSection : chunk.getSections()) {
2023-03-15 01:21:35 +01:00
- levelChunkSection.getBiomes().write(buf);
2023-06-09 06:29:58 +02:00
+ levelChunkSection.getBiomes().write(buf, null, chunkSectionIndex); // Paper - Anti-Xray
+ chunkSectionIndex++; // Paper - Anti-Xray
2023-03-15 01:21:35 +01:00
}
}
2021-11-29 12:55:13 +01:00
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
2024-06-15 14:12:22 +02:00
index cf8fd671490863e126c059157e1ca234e6509d9f..1e75cd33c32f0e2923681da64b9b73b279933c1b 100644
2021-11-29 12:55:13 +01:00
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
2024-04-25 11:42:10 +02:00
@@ -28,7 +28,10 @@ public class ClientboundLevelChunkPacketData {
private final byte[] buffer;
private final List<ClientboundLevelChunkPacketData.BlockEntityInfo> blockEntitiesData;
2021-11-29 12:55:13 +01:00
- public ClientboundLevelChunkPacketData(LevelChunk chunk) {
+ // Paper start - Anti-Xray - Add chunk packet info
2022-07-18 12:30:31 +02:00
+ @Deprecated @io.papermc.paper.annotation.DoNotUse public ClientboundLevelChunkPacketData(LevelChunk chunk) { this(chunk, null); }
2021-11-29 12:55:13 +01:00
+ public ClientboundLevelChunkPacketData(LevelChunk chunk, com.destroystokyo.paper.antixray.ChunkPacketInfo<net.minecraft.world.level.block.state.BlockState> chunkPacketInfo) {
+ // Paper end
this.heightmaps = new CompoundTag();
for (Entry<Heightmap.Types, Heightmap> entry : chunk.getHeightmaps()) {
2024-04-25 11:42:10 +02:00
@@ -38,7 +41,14 @@ public class ClientboundLevelChunkPacketData {
2021-11-29 12:55:13 +01:00
}
this.buffer = new byte[calculateChunkSize(chunk)];
- extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk);
2022-07-18 12:30:31 +02:00
+
2021-11-29 12:55:13 +01:00
+ // Paper start - Anti-Xray - Add chunk packet info
+ if (chunkPacketInfo != null) {
+ chunkPacketInfo.setBuffer(this.buffer);
+ }
+
+ extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk, chunkPacketInfo);
+ // Paper end
this.blockEntitiesData = Lists.newArrayList();
for (Entry<BlockPos, BlockEntity> entry2 : chunk.getBlockEntities().entrySet()) {
2024-04-25 11:42:10 +02:00
@@ -85,9 +95,15 @@ public class ClientboundLevelChunkPacketData {
2021-11-29 12:55:13 +01:00
return byteBuf;
}
- public static void extractChunkData(FriendlyByteBuf buf, LevelChunk chunk) {
+ // Paper start - Anti-Xray - Add chunk packet info
2022-07-18 12:30:31 +02:00
+ @Deprecated @io.papermc.paper.annotation.DoNotUse public static void extractChunkData(FriendlyByteBuf buf, LevelChunk chunk) { ClientboundLevelChunkPacketData.extractChunkData(buf, chunk, null); }
2021-11-29 12:55:13 +01:00
+ public static void extractChunkData(FriendlyByteBuf buf, LevelChunk chunk, com.destroystokyo.paper.antixray.ChunkPacketInfo<net.minecraft.world.level.block.state.BlockState> chunkPacketInfo) {
2023-06-09 06:29:58 +02:00
+ int chunkSectionIndex = 0;
+
for (LevelChunkSection levelChunkSection : chunk.getSections()) {
2021-11-29 12:55:13 +01:00
- levelChunkSection.write(buf);
2023-06-09 06:29:58 +02:00
+ levelChunkSection.write(buf, chunkPacketInfo, chunkSectionIndex);
+ chunkSectionIndex++;
2021-11-29 12:55:13 +01:00
+ // Paper end
}
}
2021-11-29 12:55:13 +01:00
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
2024-04-25 11:42:10 +02:00
index 183b2191fa1c1b27adedf39593e1b5a223fb1279..8ead66c134688b11dca15f6509147e726f182e6a 100644
2021-11-29 12:55:13 +01:00
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
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2022-06-08 05:40:53 +02:00
public void destroyAndAck(BlockPos pos, int sequence, String reason) {
diff --git a/src/main/java/net/minecraft/server/network/PlayerChunkSender.java b/src/main/java/net/minecraft/server/network/PlayerChunkSender.java
2024-06-15 14:12:22 +02:00
index 32634e45ac8433648e49e47e20081e15ad41ff15..dafa2cf7d3c49fc5bdcd68d2a952812774a1dfe4 100644
--- a/src/main/java/net/minecraft/server/network/PlayerChunkSender.java
+++ b/src/main/java/net/minecraft/server/network/PlayerChunkSender.java
2024-06-15 14:12:22 +02:00
@@ -79,7 +79,10 @@ public class PlayerChunkSender {
}
2024-06-15 14:12:22 +02:00
public static void sendChunk(ServerGamePacketListenerImpl handler, ServerLevel world, LevelChunk chunk) { // Paper - public
- handler.send(new ClientboundLevelChunkWithLightPacket(chunk, world.getLightEngine(), null, null));
+ // Paper start - Anti-Xray
+ final boolean shouldModify = world.chunkPacketBlockController.shouldModify(handler.player, chunk);
+ handler.send(new ClientboundLevelChunkWithLightPacket(chunk, world.getLightEngine(), null, null, shouldModify));
+ // Paper end - Anti-Xray
// Paper start - PlayerChunkLoadEvent
if (io.papermc.paper.event.packet.PlayerChunkLoadEvent.getHandlerList().getRegisteredListeners().length > 0) {
new io.papermc.paper.event.packet.PlayerChunkLoadEvent(new org.bukkit.craftbukkit.CraftChunk(chunk), handler.getPlayer().getBukkitEntity()).callEvent();
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
2024-06-15 15:22:06 +02:00
index 9b1a6d8351fb473eec75a2fd08fb892b770e3586..0d0b07c9199be9ca0d5ac3feb1d44f149ba69283 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
2024-06-15 14:12:22 +02:00
@@ -414,7 +414,7 @@ public abstract class PlayerList {
.getHolderOrThrow(net.minecraft.world.level.biome.Biomes.PLAINS);
player.connection.send(new net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket(
new net.minecraft.world.level.chunk.EmptyLevelChunk(worldserver1, player.chunkPosition(), plains),
- worldserver1.getLightEngine(), (java.util.BitSet)null, (java.util.BitSet) null)
+ worldserver1.getLightEngine(), (java.util.BitSet)null, (java.util.BitSet) null, true)
);
}
// Paper end - Send empty chunk
2021-11-29 12:55:13 +01:00
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11102) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 3a3bea52 SPIGOT-7829: Increase maximum outgoing plugin message size to match Vanilla intention 5cd1c8cb SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT a8e278f0 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 53729d12 Remove spurious ApiStatus.Internal annotation b9f57486 SPIGOT-7799, PR-1039: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 7983b966 PR-1029: Trial changing a small number of inner enums to classes/interfaces to better support custom values CraftBukkit Changes: 403accd56 SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT 812761660 Increase outdated build delay bed1e3ff6 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 2444c8b23 SPIGOT-7823: Suspicious sand and gravel material are not marked as having gravity correctly aceddcd0b SPIGOT-7820: Enum changes - duplicate method name a0d2d6a84 SPIGOT-7813: Material#isInteractable() always returns false 8fd64b091 SPIGOT-7806: Handle both loot and inventory item drop behaviour in PlayerDeathEvent a4ee40b74 SPIGOT-7799, PR-1436: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 082aa51c5 PR-1424: Trial changing a small number of inner enums to classes/interfaces to better support custom values 66e78a96b SPIGOT-7815: Consider EntityDamageEvent status for Wolf armor damage Spigot Changes: 5bbef5ad SPIGOT-7834: Modify max value for generic.max_absorption
2024-07-18 10:13:20 +02:00
index ce9350ed3c5c5fbbd9b2ade9ae2880e03305c787..87cde688976a45aa8848586b5371b3ab493813ea 100644
2021-11-29 12:55:13 +01:00
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -172,6 +172,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
}
// Paper end - add paper world config
2021-11-29 12:55:13 +01:00
+ public final com.destroystokyo.paper.antixray.ChunkPacketBlockController chunkPacketBlockController; // Paper - Anti-Xray
public final co.aikar.timings.WorldTimingsHandler timings; // Paper
public static BlockPos lastPhysicsProblem; // Spigot
private org.spigotmc.TickLimiter entityLimiter;
@@ -683,7 +684,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
2024-06-15 14:12:22 +02:00
}
// Paper end - optimise random ticking
2021-11-29 12:55:13 +01:00
- protected Level(WritableLevelData worlddatamutable, ResourceKey<Level> resourcekey, RegistryAccess iregistrycustom, Holder<DimensionType> holder, Supplier<ProfilerFiller> supplier, boolean flag, boolean flag1, long i, int j, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.function.Function<org.spigotmc.SpigotWorldConfig, io.papermc.paper.configuration.WorldConfiguration> paperWorldConfigCreator) { // Paper - create paper world config
2024-06-15 14:12:22 +02:00
+ protected Level(WritableLevelData worlddatamutable, ResourceKey<Level> resourcekey, RegistryAccess iregistrycustom, Holder<DimensionType> holder, Supplier<ProfilerFiller> supplier, boolean flag, boolean flag1, long i, int j, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.function.Function<org.spigotmc.SpigotWorldConfig, io.papermc.paper.configuration.WorldConfiguration> paperWorldConfigCreator, java.util.concurrent.Executor executor) { // Paper - create paper world config & Anti-Xray
2021-11-29 12:55:13 +01:00
this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot
this.paperConfig = paperWorldConfigCreator.apply(this.spigotConfig); // Paper - create paper world config
2021-11-29 12:55:13 +01:00
this.generator = gen;
@@ -770,6 +771,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
this.minSection = ca.spottedleaf.moonrise.common.util.WorldUtil.getMinSection(this);
this.maxSection = ca.spottedleaf.moonrise.common.util.WorldUtil.getMaxSection(this);
// Paper end - optimise collisions
+ this.chunkPacketBlockController = this.paperConfig().anticheat.antiXray.enabled ? new com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray(this, executor) : com.destroystokyo.paper.antixray.ChunkPacketBlockController.NO_OPERATION_INSTANCE; // Paper - Anti-Xray
2021-11-29 12:55:13 +01:00
}
// Paper start - Cancel hit for vanished players
@@ -1047,6 +1049,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
2021-11-29 12:55:13 +01:00
// CraftBukkit end
BlockState iblockdata1 = chunk.setBlockState(pos, state, (flags & 64) != 0, (flags & 1024) == 0); // CraftBukkit custom NO_PLACE flag
+ this.chunkPacketBlockController.onBlockChange(this, pos, state, iblockdata1, flags, maxUpdateDepth); // Paper - Anti-Xray
if (iblockdata1 == null) {
// CraftBukkit start - remove blockstate if failed (or the same)
diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
index a7fc4b027cee8e1ed2678be7060040494a65682a..75c8125e20b70433fe9d143a3193d821043327c3 100644
2021-11-29 12:55:13 +01:00
--- a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
@@ -159,7 +159,7 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom
2022-07-18 12:30:31 +02:00
}
}
2023-06-09 06:29:58 +02:00
- ChunkAccess.replaceMissingSections(biomeRegistry, this.sections);
+ this.replaceMissingSections(biomeRegistry, this.sections); // Paper - Anti-Xray - make it a non-static method
2022-07-18 12:30:31 +02:00
// CraftBukkit start
2023-06-09 06:29:58 +02:00
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2024-06-15 14:12:22 +02:00
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2022-06-08 05:40:53 +02:00
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2022-07-27 22:46:05 +02:00
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2021-11-29 12:55:13 +01:00
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2021-11-29 12:55:13 +01:00
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2021-11-29 12:55:13 +01:00
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2021-11-29 12:55:13 +01:00
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2021-11-29 12:55:13 +01:00
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2023-03-23 22:57:03 +01:00
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2021-11-29 12:55:13 +01:00
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2022-07-18 12:30:31 +02:00
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2021-11-29 12:55:13 +01:00
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2021-11-29 12:55:13 +01:00
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try {
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really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really 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really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really really hate jmp
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// CraftBukkit end
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
index 33322b57b4c6922f4daad0f584733f0f24083911..45e262308aebafa377a2353661acdd122933b99e 100644
2021-11-29 12:55:13 +01:00
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
Update upstream (Bukkit/CraftBukkit/Spigot) (#10875) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 376e37db SPIGOT-7677: Update which entities are marked as spawnable 06c4add3 SPIGOT-7737: Add separate TreeType.MEGA_PINE 19b7caaa SPIGOT-7731: Spawn eggs cannot have damage e585297e PR-1022: Add force option to Player#spawnParticle d26e0094 PR-1018: Add methods to get players seeing specific chunks 8df1ed18 PR-978: Add Material#isCompostable and Material#getCompostChance 4b9b59c7 SPIGOT-7676: Enforce locale parameter in toLowerCase and toUpperCase method calls and always use root locale 8d1e700a PR-1020: Cast instead of using #typed when getting BlockType and ItemType to better work with testing / mocks fa28607a PR-1016: Fix incorrect assumption of Fireball having constant speed 4c6c8586 PR-1015: Add a tool component to ItemMeta 6f6b2123 PR-1014: Add PotionEffectTypeCategory to distinguish between beneficial and harmful effects f511cfe1 PR-1013, SPIGOT-4288, SPIGOT-6202: Add material rerouting in preparation for the switch to ItemType and BlockType def44cbf SPIGOT-7669: Fix typo in ProjectileHitEvent#getHitBlockFace documentation 53fa4f72 PR-1011: Throw an exception if a RecipeChoice is ever supplied air CraftBukkit Changes: ee95e171a SPIGOT-7737: Add separate TreeType.MEGA_PINE 0dae4c62c Fix spawn egg equality check and copy constructor ab59e847c Fix spawn eggs with no entity creating invalid stacks and disconnect creative clients 3b6093b28 SPIGOT-7736: Creative spawn egg use loses components c6b4d5a87 SPIGOT-7731: Spawn eggs cannot have damage 340ccd57f SPIGOT-7735: Fix serialization of player heads with note block sound fd2f41834 SPIGOT-7734: Can't register a custom advancement using unsafe() 02456e2a5 PR-1413: Add force option to Player#spawnParticle 6a61f38b2 SPIGOT-7680: Per-world weather command 58c41cebb PR-1409: Add methods to get players seeing specific chunks 16c976797 PR-1412: Fix shipwreck loot tables not being set for BlockTransformers 7189ba636 PR-1360: Add Material#isCompostable and Material#getCompostChance 900384556 SPIGOT-7676: Enforce locale parameter in toLowerCase and toUpperCase method calls and always use root locale bdb40c5f1 Increase outdated build delay d6607c7dd SPIGOT-7675: Fix FoodComponent config deserialization b148ed332 PR-1406: Fix incorrect assumption of Fireball having constant speed 3ec31ca75 PR-1405: Add a tool component to ItemMeta 5d7d675b9 PR-1404: Add PotionEffectTypeCategory to distinguish between beneficial and harmful effects 960827981 PR-1403, SPIGOT-4288, SPIGOT-6202: Add material rerouting in preparation for the switch to ItemType and BlockType 94e44ec93 PR-1401: Add a config option to accept old keys in registry get calls a43701920 PR-1402: Fix ChunkSnapshot#isSectionEmpty() is always false 87d0a3368 SPIGOT-7668: Move NONE Registry updater to FieldRename to avoid some class loader issues 2ea1e7ac2 PR-1399: Fix regression preventing positive .setDamage value from causing knockback for 0 damage events ba2d49d21 Increase outdated build delay Spigot Changes: fcd94e21 Rebuild patches 342f4939 SPIGOT-7661: Add experimental unload-frozen-chunks option
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@@ -56,7 +56,7 @@ public class CraftChunk implements Chunk {
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private final ServerLevel worldServer;
private final int x;
private final int z;
- private static final PalettedContainer<net.minecraft.world.level.block.state.BlockState> emptyBlockIDs = new PalettedContainer<>(net.minecraft.world.level.block.Block.BLOCK_STATE_REGISTRY, Blocks.AIR.defaultBlockState(), PalettedContainer.Strategy.SECTION_STATES);
+ private static final PalettedContainer<net.minecraft.world.level.block.state.BlockState> emptyBlockIDs = new PalettedContainer<>(net.minecraft.world.level.block.Block.BLOCK_STATE_REGISTRY, Blocks.AIR.defaultBlockState(), PalettedContainer.Strategy.SECTION_STATES, null); // Paper - Anti-Xray - Add preset block states
private static final byte[] FULL_LIGHT = new byte[2048];
private static final byte[] EMPTY_LIGHT = new byte[2048];
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11102) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 3a3bea52 SPIGOT-7829: Increase maximum outgoing plugin message size to match Vanilla intention 5cd1c8cb SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT a8e278f0 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 53729d12 Remove spurious ApiStatus.Internal annotation b9f57486 SPIGOT-7799, PR-1039: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 7983b966 PR-1029: Trial changing a small number of inner enums to classes/interfaces to better support custom values CraftBukkit Changes: 403accd56 SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT 812761660 Increase outdated build delay bed1e3ff6 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 2444c8b23 SPIGOT-7823: Suspicious sand and gravel material are not marked as having gravity correctly aceddcd0b SPIGOT-7820: Enum changes - duplicate method name a0d2d6a84 SPIGOT-7813: Material#isInteractable() always returns false 8fd64b091 SPIGOT-7806: Handle both loot and inventory item drop behaviour in PlayerDeathEvent a4ee40b74 SPIGOT-7799, PR-1436: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 082aa51c5 PR-1424: Trial changing a small number of inner enums to classes/interfaces to better support custom values 66e78a96b SPIGOT-7815: Consider EntityDamageEvent status for Wolf armor damage Spigot Changes: 5bbef5ad SPIGOT-7834: Modify max value for generic.max_absorption
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index cc1f3c7fec4fa794da0b19f44ced9fd482dfdfc7..3a91faeb6957e4e783b1de3e1145e7d1d164a857 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11102) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 3a3bea52 SPIGOT-7829: Increase maximum outgoing plugin message size to match Vanilla intention 5cd1c8cb SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT a8e278f0 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 53729d12 Remove spurious ApiStatus.Internal annotation b9f57486 SPIGOT-7799, PR-1039: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 7983b966 PR-1029: Trial changing a small number of inner enums to classes/interfaces to better support custom values CraftBukkit Changes: 403accd56 SPIGOT-7831: Add CreatureSpawnEvent.SpawnReason#POTION_EFFECT 812761660 Increase outdated build delay bed1e3ff6 SPIGOT-7827: Sync EntityPortalEvent with PlayerPortalEvent since non-players can now create portals 2444c8b23 SPIGOT-7823: Suspicious sand and gravel material are not marked as having gravity correctly aceddcd0b SPIGOT-7820: Enum changes - duplicate method name a0d2d6a84 SPIGOT-7813: Material#isInteractable() always returns false 8fd64b091 SPIGOT-7806: Handle both loot and inventory item drop behaviour in PlayerDeathEvent a4ee40b74 SPIGOT-7799, PR-1436: Expose explosion world interaction in EntityExplodeEvent and BlockExplodeEvent 082aa51c5 PR-1424: Trial changing a small number of inner enums to classes/interfaces to better support custom values 66e78a96b SPIGOT-7815: Consider EntityDamageEvent status for Wolf armor damage Spigot Changes: 5bbef5ad SPIGOT-7834: Modify max value for generic.max_absorption
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@@ -2686,7 +2686,7 @@ public final class CraftServer implements Server {
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public ChunkGenerator.ChunkData createChunkData(World world) {
Preconditions.checkArgument(world != null, "World cannot be null");
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ServerLevel handle = ((CraftWorld) world).getHandle();
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- return new OldCraftChunkData(world.getMinHeight(), world.getMaxHeight(), handle.registryAccess().registryOrThrow(Registries.BIOME));
+ return new OldCraftChunkData(world.getMinHeight(), world.getMaxHeight(), handle.registryAccess().registryOrThrow(Registries.BIOME), world); // Paper - Anti-Xray - Add parameters
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}
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@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 5ad2ceb1274648631689215702a12463c681152c..86ed89a2eae5f36d902cd8dc4bd0389e066b4bba 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -465,11 +465,16 @@ public class CraftWorld extends CraftRegionAccessor implements World {
List<ServerPlayer> playersInRange = playerChunk.playerProvider.getPlayers(playerChunk.getPos(), false);
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if (playersInRange.isEmpty()) return true; // Paper - chunk system
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- ClientboundLevelChunkWithLightPacket refreshPacket = new ClientboundLevelChunkWithLightPacket(chunk, this.world.getLightEngine(), null, null);
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+ // Paper start - Anti-Xray bypass
+ final Map<Object, ClientboundLevelChunkWithLightPacket> refreshPackets = new HashMap<>();
for (ServerPlayer player : playersInRange) {
if (player.connection == null) continue;
- player.connection.send(refreshPacket);
+ Boolean shouldModify = chunk.getLevel().chunkPacketBlockController.shouldModify(player, chunk);
+ player.connection.send(refreshPackets.computeIfAbsent(shouldModify, s -> { // Use connection to prevent creating firing event
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+ return new ClientboundLevelChunkWithLightPacket(chunk, this.world.getLightEngine(), null, null, (Boolean) s);
+ }));
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+ // Paper end - Anti-Xray bypass
}
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// Paper - chunk system
Rewrite chunk system (#8177) Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
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diff --git a/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java b/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java
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index e7f7a246e9c03e676dadfee59de87b8b2ac55ba3..03eb35d5c67f125c44cf46595c93d124ac7892b8 100644
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--- a/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/OldCraftChunkData.java
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#10164) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 63c208dd Remove no longer used import 70be76c7 PR-958: Further clarify deprecation of TAG_CONTAINER_ARRAY ae21f4ac PR-955: Add methods to place structures with block/entity transformers e3d960f2 SPIGOT-7547: Remark that Damageable#setAbsorptionAmount() is capped to a specific value b125516c Fix typo in RecipeChoice.ExactChoice docs 309497c1 Add EntityMountEvent and EntityDismount Event 2fd45ae3 Improve ItemFactory#enchantItem consistency 2b198268 PR-933: Define native persistent data types for lists CraftBukkit Changes: 771182f70 PR-1327: Add methods to place structures with block/entity transformers e41ad4c82 SPIGOT-7567: SpawnReason for SNOWMAN is reported as BUILD_IRONGOLEM 76931e8bd Add EntityMountEvent and EntityDismount Event 9b29b21c7 PR-1183: Better handle lambda expression and renaming of classes in Commodore 1462ebe85 Reformat Commodore.java 9fde4c037 PR-1324: Improve ItemFactory#enchantItem consistency 4e419c774 PR-1295: Define native persistent data types for lists dd8cca388 SPIGOT-7562: Fix Score#getScore and Score#isScoreSet 690278200 Only fetch an online UUID in online mode 1da8d9a53 Fire PreLogin events even in offline mode 2e88514ad PR-1325: Use CraftBlockType and CraftItemType instead of CraftMagicNumbers to convert between minecraft and bukkit block / item representation Spigot Changes: 864e4acc Restore accidentally removed package-info.java f91a10d5 Remove obsolete EntityMountEvent and EntityDismountEvent 828f0593 SPIGOT-7558: Deprecate silenceable lightning API as sound is now client-side and cannot be removed cdc4e035 Remove obsolete patch fetching correct mode UUIDs 49e36b8e Merge related BungeeCord patches 6e87b9ab Remove obsolete firing of PreLogin events in offline mode 5c76b183 Remove redundant patch dealing with exceptions in the crash reporter 3a2219d1 Remove redundant patch logging cause of unexpected exception
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@@ -27,8 +27,13 @@ public final class OldCraftChunkData implements ChunkGenerator.ChunkData {
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private final Registry<net.minecraft.world.level.biome.Biome> biomes;
private Set<BlockPos> tiles;
private final Set<BlockPos> lights = new HashSet<>();
+ // Paper start - Anti-Xray - Add parameters
+ private final org.bukkit.World world;
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- public OldCraftChunkData(int minHeight, int maxHeight, Registry<net.minecraft.world.level.biome.Biome> biomes) {
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+ @Deprecated @io.papermc.paper.annotation.DoNotUse public OldCraftChunkData(int minHeight, int maxHeight, Registry<net.minecraft.world.level.biome.Biome> biomes) { this(minHeight, maxHeight, biomes, null); }
+ public OldCraftChunkData(int minHeight, int maxHeight, Registry<net.minecraft.world.level.biome.Biome> biomes, org.bukkit.World world) {
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+ this.world = world;
+ // Paper end
this.minHeight = minHeight;
this.maxHeight = maxHeight;
this.biomes = biomes;
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#10164) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 63c208dd Remove no longer used import 70be76c7 PR-958: Further clarify deprecation of TAG_CONTAINER_ARRAY ae21f4ac PR-955: Add methods to place structures with block/entity transformers e3d960f2 SPIGOT-7547: Remark that Damageable#setAbsorptionAmount() is capped to a specific value b125516c Fix typo in RecipeChoice.ExactChoice docs 309497c1 Add EntityMountEvent and EntityDismount Event 2fd45ae3 Improve ItemFactory#enchantItem consistency 2b198268 PR-933: Define native persistent data types for lists CraftBukkit Changes: 771182f70 PR-1327: Add methods to place structures with block/entity transformers e41ad4c82 SPIGOT-7567: SpawnReason for SNOWMAN is reported as BUILD_IRONGOLEM 76931e8bd Add EntityMountEvent and EntityDismount Event 9b29b21c7 PR-1183: Better handle lambda expression and renaming of classes in Commodore 1462ebe85 Reformat Commodore.java 9fde4c037 PR-1324: Improve ItemFactory#enchantItem consistency 4e419c774 PR-1295: Define native persistent data types for lists dd8cca388 SPIGOT-7562: Fix Score#getScore and Score#isScoreSet 690278200 Only fetch an online UUID in online mode 1da8d9a53 Fire PreLogin events even in offline mode 2e88514ad PR-1325: Use CraftBlockType and CraftItemType instead of CraftMagicNumbers to convert between minecraft and bukkit block / item representation Spigot Changes: 864e4acc Restore accidentally removed package-info.java f91a10d5 Remove obsolete EntityMountEvent and EntityDismountEvent 828f0593 SPIGOT-7558: Deprecate silenceable lightning API as sound is now client-side and cannot be removed cdc4e035 Remove obsolete patch fetching correct mode UUIDs 49e36b8e Merge related BungeeCord patches 6e87b9ab Remove obsolete firing of PreLogin events in offline mode 5c76b183 Remove redundant patch dealing with exceptions in the crash reporter 3a2219d1 Remove redundant patch logging cause of unexpected exception
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@@ -176,7 +181,7 @@ public final class OldCraftChunkData implements ChunkGenerator.ChunkData {
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int offset = (y - this.minHeight) >> 4;
LevelChunkSection section = this.sections[offset];
if (create && section == null) {
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- this.sections[offset] = section = new LevelChunkSection(this.biomes);
+ this.sections[offset] = section = new LevelChunkSection(this.biomes, this.world instanceof org.bukkit.craftbukkit.CraftWorld ? ((org.bukkit.craftbukkit.CraftWorld) this.world).getHandle() : null, null, offset + (this.minHeight >> 4)); // Paper - Anti-Xray - Add parameters
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}
return section;
}