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PaperMC/Spigot-Server-Patches/0211-Anti-Xray.patch
Shane Freeder 130b9a0a36
NOT FINISHED! 1.13-pre7 - even more patches! 
Patches, patches everywhere!
2018-07-18 01:08:13 +01:00

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From b82dea6633d58d47574612205e7181b4147ef162 Mon Sep 17 00:00:00 2001
From: stonar96 <minecraft.stonar96@gmail.com>
Date: Thu, 21 Sep 2017 00:38:47 +0200
Subject: [PATCH] Anti-Xray
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index c80d84b9b..6344537ec 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -1,7 +1,10 @@
package com.destroystokyo.paper;
+import java.util.Arrays;
import java.util.List;
+import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray.ChunkEdgeMode;
+import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray.EngineMode;
import net.minecraft.server.MinecraftServer;
import org.bukkit.Bukkit;
import org.bukkit.configuration.file.YamlConfiguration;
@@ -361,4 +364,27 @@ public class PaperWorldConfig {
disableCreeperLingeringEffect = getBoolean("disable-creeper-lingering-effect", false);
log("Creeper lingering effect: " + disableCreeperLingeringEffect);
}
+
+ public boolean antiXray;
+ public boolean asynchronous;
+ public EngineMode engineMode;
+ public ChunkEdgeMode chunkEdgeMode;
+ public int maxChunkSectionIndex;
+ public int updateRadius;
+ public List<Object> hiddenBlocks;
+ public List<Object> replacementBlocks;
+ private void antiXray() {
+ antiXray = getBoolean("anti-xray.enabled", false);
+ asynchronous = true;
+ engineMode = EngineMode.getById(getInt("anti-xray.engine-mode", EngineMode.HIDE.getId()));
+ engineMode = engineMode == null ? EngineMode.HIDE : engineMode;
+ chunkEdgeMode = ChunkEdgeMode.getById(getInt("anti-xray.chunk-edge-mode", ChunkEdgeMode.DEFAULT.getId()));
+ chunkEdgeMode = chunkEdgeMode == null ? ChunkEdgeMode.DEFAULT : chunkEdgeMode;
+ maxChunkSectionIndex = getInt("anti-xray.max-chunk-section-index", 3);
+ maxChunkSectionIndex = maxChunkSectionIndex > 15 ? 15 : maxChunkSectionIndex;
+ updateRadius = getInt("anti-xray.update-radius", 2);
+ hiddenBlocks = getList("anti-xray.hidden-blocks", Arrays.asList((Object) "gold_ore", "iron_ore", "coal_ore", "lapis_ore", "mossy_cobblestone", "obsidian", "chest", "diamond_ore", "redstone_ore", "lit_redstone_ore", "clay", "emerald_ore", "ender_chest"));
+ replacementBlocks = getList("anti-xray.replacement-blocks", Arrays.asList((Object) "stone", "planks"));
+ log("Anti-Xray: " + (antiXray ? "enabled" : "disabled") + " / Engine Mode: " + engineMode.getDescription() + " / Chunk Edge Mode: " + chunkEdgeMode.getDescription() + " / Up to " + ((maxChunkSectionIndex + 1) * 16) + " blocks / Update Radius: " + updateRadius);
+ }
}
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
index 000000000..6833cfad2
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockController.java
@@ -0,0 +1,36 @@
+package com.destroystokyo.paper.antixray;
+
+import net.minecraft.server.BlockPosition;
+import net.minecraft.server.Chunk;
+import net.minecraft.server.IBlockData;
+import net.minecraft.server.PacketPlayOutMapChunk;
+import net.minecraft.server.World;
+
+public class ChunkPacketBlockController {
+
+ public static final ChunkPacketBlockController NO_OPERATION_INSTANCE = new ChunkPacketBlockController();
+
+ protected ChunkPacketBlockController() {
+
+ }
+
+ public IBlockData[] getPredefinedBlockData(Chunk chunk, int chunkSectionIndex) {
+ return null;
+ }
+
+ public boolean onChunkPacketCreate(Chunk chunk, int chunkSectionSelector, boolean force) {
+ return true;
+ }
+
+ public PacketPlayOutMapChunkInfo getPacketPlayOutMapChunkInfo(PacketPlayOutMapChunk packetPlayOutMapChunk, Chunk chunk, int chunkSectionSelector) {
+ return null;
+ }
+
+ public void modifyBlocks(PacketPlayOutMapChunk packetPlayOutMapChunk, PacketPlayOutMapChunkInfo packetPlayOutMapChunkInfo) {
+ packetPlayOutMapChunk.setReady(true);
+ }
+
+ public void updateNearbyBlocks(World world, BlockPosition blockPosition) {
+
+ }
+}
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 000000000..2dc0655a9
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java
@@ -0,0 +1,640 @@
+package com.destroystokyo.paper.antixray;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ExecutorService;
+
+import com.destroystokyo.paper.PaperWorldConfig;
+
+import net.minecraft.server.Block;
+import net.minecraft.server.BlockPosition;
+import net.minecraft.server.Blocks;
+import net.minecraft.server.Chunk;
+import net.minecraft.server.ChunkSection;
+import net.minecraft.server.DataPalette;
+import net.minecraft.server.DataPaletteBlock;
+import net.minecraft.server.DataPaletteGlobal;
+import net.minecraft.server.IBlockData;
+import net.minecraft.server.PacketPlayOutMapChunk;
+import net.minecraft.server.World;
+
+import org.bukkit.World.Environment;
+
+public class ChunkPacketBlockControllerAntiXray extends ChunkPacketBlockController {
+
+ private static ExecutorService executorServiceInstance = null;
+ private final ExecutorService executorService;
+ private final boolean asynchronous;
+ private final EngineMode engineMode;
+ private final ChunkEdgeMode chunkEdgeMode;
+ private final int maxChunkSectionIndex;
+ private final int updateRadius;
+ private final IBlockData[] predefinedBlockData;
+ private final IBlockData[] predefinedBlockDataStone;
+ private final IBlockData[] predefinedBlockDataNetherrack;
+ private final IBlockData[] predefinedBlockDataEndStone;
+ private final int[] predefinedBlockDataBits;
+ private final int[] predefinedBlockDataBitsGlobal;
+ private final int[] predefinedBlockDataBitsStoneGlobal;
+ private final int[] predefinedBlockDataBitsNetherrackGlobal;
+ private final int[] predefinedBlockDataBitsEndStoneGlobal;
+ private final boolean[] solidGlobal = new boolean[Block.REGISTRY_ID.size()];
+ private final boolean[] obfuscateGlobal = new boolean[Block.REGISTRY_ID.size()];
+ private final ChunkSection[] emptyNearbyChunkSections = {Chunk.EMPTY_CHUNK_SECTION, Chunk.EMPTY_CHUNK_SECTION, Chunk.EMPTY_CHUNK_SECTION, Chunk.EMPTY_CHUNK_SECTION};
+
+ public ChunkPacketBlockControllerAntiXray(PaperWorldConfig paperWorldConfig) {
+ asynchronous = paperWorldConfig.asynchronous;
+ engineMode = paperWorldConfig.engineMode;
+ chunkEdgeMode = paperWorldConfig.chunkEdgeMode;
+ maxChunkSectionIndex = paperWorldConfig.maxChunkSectionIndex;
+ updateRadius = paperWorldConfig.updateRadius;
+
+ if (asynchronous) {
+ executorService = getExecutorServiceInstance();
+ } else {
+ executorService = null;
+ }
+
+ if (engineMode == EngineMode.HIDE) {
+ predefinedBlockData = null;
+ predefinedBlockDataStone = new IBlockData[] {Blocks.STONE.getBlockData()};
+ predefinedBlockDataNetherrack = new IBlockData[] {Blocks.NETHERRACK.getBlockData()};
+ predefinedBlockDataEndStone = new IBlockData[] {Blocks.END_STONE.getBlockData()};
+ predefinedBlockDataBits = new int[] {1};
+ predefinedBlockDataBitsGlobal = null;
+ predefinedBlockDataBitsStoneGlobal = new int[] {Block.REGISTRY_ID.getId(Blocks.STONE.getBlockData())};
+ predefinedBlockDataBitsNetherrackGlobal = new int[] {Block.REGISTRY_ID.getId(Blocks.NETHERRACK.getBlockData())};
+ predefinedBlockDataBitsEndStoneGlobal = new int[] {Block.REGISTRY_ID.getId(Blocks.END_STONE.getBlockData())};
+ } else {
+ Set<IBlockData> predefinedBlockDataSet = new HashSet<IBlockData>();
+
+ for (Object id : paperWorldConfig.hiddenBlocks) {
+ Block block = Block.getByName(String.valueOf(id));
+
+ if (block != null && !block.isTileEntity()) {
+ predefinedBlockDataSet.add(block.getBlockData());
+ }
+ }
+
+ predefinedBlockData = predefinedBlockDataSet.size() == 0 ? new IBlockData[] {Blocks.DIAMOND_ORE.getBlockData()} : predefinedBlockDataSet.toArray(new IBlockData[predefinedBlockDataSet.size()]);
+ predefinedBlockDataStone = null;
+ predefinedBlockDataNetherrack = null;
+ predefinedBlockDataEndStone = null;
+ predefinedBlockDataBits = new int[predefinedBlockData.length];
+ predefinedBlockDataBitsGlobal = new int[predefinedBlockData.length];
+ boolean containsDefaultBlockData = false;
+
+ for (int i = 0; i < predefinedBlockData.length; i++) {
+ predefinedBlockDataBits[i] = containsDefaultBlockData ? i : (containsDefaultBlockData = predefinedBlockData[i] == DataPaletteBlock.DEFAULT_BLOCK_DATA) ? 0 : i + 1;
+ predefinedBlockDataBitsGlobal[i] = Block.REGISTRY_ID.getId(predefinedBlockData[i]);
+ }
+
+ predefinedBlockDataBitsStoneGlobal = null;
+ predefinedBlockDataBitsNetherrackGlobal = null;
+ predefinedBlockDataBitsEndStoneGlobal = null;
+ }
+
+ for (Object id : (engineMode == EngineMode.HIDE) ? paperWorldConfig.hiddenBlocks : paperWorldConfig.replacementBlocks) {
+ Block block = Block.getByName(String.valueOf(id));
+
+ if (block != null) {
+ obfuscateGlobal[Block.REGISTRY_ID.getId(block.getBlockData())] = true;
+ }
+ }
+
+ for (int i = 0; i < solidGlobal.length; i++) {
+ IBlockData blockData = Block.REGISTRY_ID.fromId(i);
+
+ if (blockData != null) {
+ solidGlobal[i] = blockData.getBlock().isOccluding(blockData) && blockData.getBlock() != Blocks.MOB_SPAWNER && blockData.getBlock() != Blocks.BARRIER;
+ }
+ }
+ }
+
+ private static ExecutorService getExecutorServiceInstance() {
+ if (executorServiceInstance == null) {
+ executorServiceInstance = Executors.newSingleThreadExecutor();
+ }
+
+ return executorServiceInstance;
+ }
+
+ @Override
+ public IBlockData[] getPredefinedBlockData(Chunk chunk, int chunkSectionIndex) {
+ //Return the block data which should be added to the data palettes so that they can be used for the obfuscation
+ if (chunkSectionIndex <= maxChunkSectionIndex) {
+ switch (engineMode) {
+ case HIDE:
+ switch (chunk.world.getWorld().getEnvironment()) {
+ case NETHER:
+ return predefinedBlockDataNetherrack;
+ case THE_END:
+ return predefinedBlockDataEndStone;
+ default:
+ return predefinedBlockDataStone;
+ }
+ default:
+ return predefinedBlockData;
+ }
+ }
+
+ return null;
+ }
+
+ @Override
+ public boolean onChunkPacketCreate(Chunk chunk, int chunkSectionSelector, boolean force) {
+ //Load nearby chunks if necessary
+ if (chunkEdgeMode == ChunkEdgeMode.WAIT && !force) {
+ if (chunk.world.getChunkIfLoaded(chunk.locX - 1, chunk.locZ) == null || chunk.world.getChunkIfLoaded(chunk.locX + 1, chunk.locZ) == null || chunk.world.getChunkIfLoaded(chunk.locX, chunk.locZ - 1) == null || chunk.world.getChunkIfLoaded(chunk.locX, chunk.locZ + 1) == null) {
+ //Don't create the chunk packet now, wait until nearby chunks are loaded and create it later
+ return false;
+ }
+ } else if (chunkEdgeMode == ChunkEdgeMode.LOAD || chunkEdgeMode == ChunkEdgeMode.WAIT) {
+ chunk.world.getChunkAt(chunk.locX - 1, chunk.locZ);
+ chunk.world.getChunkAt(chunk.locX + 1, chunk.locZ);
+ chunk.world.getChunkAt(chunk.locX, chunk.locZ - 1);
+ chunk.world.getChunkAt(chunk.locX, chunk.locZ + 1);
+ }
+
+ //Create the chunk packet now
+ return true;
+ }
+
+ @Override
+ public PacketPlayOutMapChunkInfoAntiXray getPacketPlayOutMapChunkInfo(PacketPlayOutMapChunk packetPlayOutMapChunk, Chunk chunk, int chunkSectionSelector) {
+ //Return a new instance to collect data and objects in the right state while creating the chunk packet for thread safe access later
+ PacketPlayOutMapChunkInfoAntiXray packetPlayOutMapChunkInfoAntiXray = new PacketPlayOutMapChunkInfoAntiXray(packetPlayOutMapChunk, chunk, chunkSectionSelector, this);
+ packetPlayOutMapChunkInfoAntiXray.setNearbyChunks(chunk.world.getChunkIfLoaded(chunk.locX - 1, chunk.locZ), chunk.world.getChunkIfLoaded(chunk.locX + 1, chunk.locZ), chunk.world.getChunkIfLoaded(chunk.locX, chunk.locZ - 1), chunk.world.getChunkIfLoaded(chunk.locX, chunk.locZ + 1));
+ return packetPlayOutMapChunkInfoAntiXray;
+ }
+
+ @Override
+ public void modifyBlocks(PacketPlayOutMapChunk packetPlayOutMapChunk, PacketPlayOutMapChunkInfo packetPlayOutMapChunkInfo) {
+ if (asynchronous) {
+ executorService.submit((PacketPlayOutMapChunkInfoAntiXray) packetPlayOutMapChunkInfo);
+ } else {
+ obfuscate((PacketPlayOutMapChunkInfoAntiXray) packetPlayOutMapChunkInfo);
+ }
+ }
+
+ //Actually these fields should be variables inside the obfuscate method but in sync mode or with SingleThreadExecutor in async mode it's okay
+ private final boolean[] solid = new boolean[Block.REGISTRY_ID.size()];
+ private final boolean[] obfuscate = new boolean[Block.REGISTRY_ID.size()];
+ //These boolean arrays represent chunk layers, true means don't obfuscate, false means obfuscate
+ private boolean[][] current = new boolean[16][16];
+ private boolean[][] next = new boolean[16][16];
+ private boolean[][] nextNext = new boolean[16][16];
+ private final DataBitsReader dataBitsReader = new DataBitsReader();
+ private final DataBitsWriter dataBitsWriter = new DataBitsWriter();
+ private final ChunkSection[] nearbyChunkSections = new ChunkSection[4];
+
+ public void obfuscate(PacketPlayOutMapChunkInfoAntiXray packetPlayOutMapChunkInfoAntiXray) {
+ boolean[] solidTemp = null;
+ boolean[] obfuscateTemp = null;
+ dataBitsReader.setDataBits(packetPlayOutMapChunkInfoAntiXray.getData());
+ dataBitsWriter.setDataBits(packetPlayOutMapChunkInfoAntiXray.getData());
+ int counter = 0;
+
+ for (int chunkSectionIndex = 0; chunkSectionIndex <= maxChunkSectionIndex; chunkSectionIndex++) {
+ if (packetPlayOutMapChunkInfoAntiXray.isWritten(chunkSectionIndex) && packetPlayOutMapChunkInfoAntiXray.getPredefinedBlockData(chunkSectionIndex) != null) {
+ int[] predefinedBlockDataBitsTemp = packetPlayOutMapChunkInfoAntiXray.getDataPalette(chunkSectionIndex) instanceof DataPaletteGlobal ? engineMode == EngineMode.HIDE ? packetPlayOutMapChunkInfoAntiXray.getChunk().world.getWorld().getEnvironment() == Environment.NETHER ? predefinedBlockDataBitsNetherrackGlobal : packetPlayOutMapChunkInfoAntiXray.getChunk().world.getWorld().getEnvironment() == Environment.THE_END ? predefinedBlockDataBitsEndStoneGlobal : predefinedBlockDataBitsStoneGlobal : predefinedBlockDataBitsGlobal : predefinedBlockDataBits;
+ dataBitsWriter.setIndex(packetPlayOutMapChunkInfoAntiXray.getDataBitsIndex(chunkSectionIndex));
+
+ //Check if the chunk section below was not obfuscated
+ if (chunkSectionIndex == 0 || !packetPlayOutMapChunkInfoAntiXray.isWritten(chunkSectionIndex - 1) || packetPlayOutMapChunkInfoAntiXray.getPredefinedBlockData(chunkSectionIndex - 1) == null) {
+ //If so, initialize some stuff
+ dataBitsReader.setBitsPerValue(packetPlayOutMapChunkInfoAntiXray.getBitsPerValue(chunkSectionIndex));
+ dataBitsReader.setIndex(packetPlayOutMapChunkInfoAntiXray.getDataBitsIndex(chunkSectionIndex));
+ solidTemp = readDataPalette(packetPlayOutMapChunkInfoAntiXray.getDataPalette(chunkSectionIndex), solid, solidGlobal);
+ obfuscateTemp = readDataPalette(packetPlayOutMapChunkInfoAntiXray.getDataPalette(chunkSectionIndex), obfuscate, obfuscateGlobal);
+ //Read the blocks of the upper layer of the chunk section below if it exists
+ ChunkSection belowChunkSection = null;
+ boolean skipFirstLayer = chunkSectionIndex == 0 || (belowChunkSection = packetPlayOutMapChunkInfoAntiXray.getChunk().getSections()[chunkSectionIndex - 1]) == Chunk.EMPTY_CHUNK_SECTION;
+
+ for (int z = 0; z < 16; z++) {
+ for (int x = 0; x < 16; x++) {
+ current[z][x] = true;
+ next[z][x] = skipFirstLayer || !solidGlobal[Block.REGISTRY_ID.getId(belowChunkSection.getType(x, 15, z))];
+ }
+ }
+
+ //Abuse the obfuscateLayer method to read the blocks of the first layer of the current chunk section
+ dataBitsWriter.setBitsPerValue(0);
+ obfuscateLayer(-1, dataBitsReader, dataBitsWriter, solidTemp, obfuscateTemp, predefinedBlockDataBitsTemp, current, next, nextNext, emptyNearbyChunkSections, counter);
+ }
+
+ dataBitsWriter.setBitsPerValue(packetPlayOutMapChunkInfoAntiXray.getBitsPerValue(chunkSectionIndex));
+ nearbyChunkSections[0] = packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[0] == null ? Chunk.EMPTY_CHUNK_SECTION : packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[0].getSections()[chunkSectionIndex];
+ nearbyChunkSections[1] = packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[1] == null ? Chunk.EMPTY_CHUNK_SECTION : packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[1].getSections()[chunkSectionIndex];
+ nearbyChunkSections[2] = packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[2] == null ? Chunk.EMPTY_CHUNK_SECTION : packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[2].getSections()[chunkSectionIndex];
+ nearbyChunkSections[3] = packetPlayOutMapChunkInfoAntiXray.getNearbyChunks()[3] == null ? Chunk.EMPTY_CHUNK_SECTION : packetPlayOutMapChunkInfoAntiXray.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;
+ counter = obfuscateLayer(y, dataBitsReader, dataBitsWriter, solidTemp, obfuscateTemp, predefinedBlockDataBitsTemp, current, next, nextNext, nearbyChunkSections, counter);
+ }
+
+ //Check if the chunk section above doesn't need obfuscation
+ if (chunkSectionIndex == maxChunkSectionIndex || !packetPlayOutMapChunkInfoAntiXray.isWritten(chunkSectionIndex + 1) || packetPlayOutMapChunkInfoAntiXray.getPredefinedBlockData(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
+ ChunkSection aboveChunkSection;
+
+ if (chunkSectionIndex != 15 && (aboveChunkSection = packetPlayOutMapChunkInfoAntiXray.getChunk().getSections()[chunkSectionIndex + 1]) != Chunk.EMPTY_CHUNK_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 (!solidGlobal[Block.REGISTRY_ID.getId(aboveChunkSection.getType(x, 0, z))]) {
+ current[z][x] = true;
+ }
+ }
+ }
+
+ //There is nothing to read anymore
+ dataBitsReader.setBitsPerValue(0);
+ solid[0] = true;
+ counter = obfuscateLayer(15, dataBitsReader, dataBitsWriter, solid, obfuscateTemp, predefinedBlockDataBitsTemp, current, next, nextNext, nearbyChunkSections, counter);
+ }
+ } else {
+ //If not, initialize the reader and other stuff for the chunk section above to obfuscate the upper layer of the current chunk section
+ dataBitsReader.setBitsPerValue(packetPlayOutMapChunkInfoAntiXray.getBitsPerValue(chunkSectionIndex + 1));
+ dataBitsReader.setIndex(packetPlayOutMapChunkInfoAntiXray.getDataBitsIndex(chunkSectionIndex + 1));
+ solidTemp = readDataPalette(packetPlayOutMapChunkInfoAntiXray.getDataPalette(chunkSectionIndex + 1), solid, solidGlobal);
+ obfuscateTemp = readDataPalette(packetPlayOutMapChunkInfoAntiXray.getDataPalette(chunkSectionIndex + 1), obfuscate, obfuscateGlobal);
+ boolean[][] temp = current;
+ current = next;
+ next = nextNext;
+ nextNext = temp;
+ counter = obfuscateLayer(15, dataBitsReader, dataBitsWriter, solidTemp, obfuscateTemp, predefinedBlockDataBitsTemp, current, next, nextNext, nearbyChunkSections, counter);
+ }
+
+ dataBitsWriter.finish();
+ }
+ }
+
+ packetPlayOutMapChunkInfoAntiXray.getPacketPlayOutMapChunk().setReady(true);
+ }
+
+ private int obfuscateLayer(int y, DataBitsReader dataBitsReader, DataBitsWriter dataBitsWriter, boolean[] solid, boolean[] obfuscate, int[] predefinedBlockDataBits, boolean[][] current, boolean[][] next, boolean[][] nextNext, ChunkSection[] nearbyChunkSections, int counter) {
+ //First block of first line
+ int dataBits = dataBitsReader.read();
+
+ if (nextNext[0][0] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[0][1] = true;
+ next[1][0] = true;
+ } else {
+ if (nearbyChunkSections[2] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[2].getType(0, y, 15))] || nearbyChunkSections[0] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[0].getType(15, y, 0))] || current[0][0]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[0][0] = true;
+ }
+
+ //First line
+ for (int x = 1; x < 15; x++) {
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[0][x] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[0][x - 1] = true;
+ next[0][x + 1] = true;
+ next[1][x] = true;
+ } else {
+ if (nearbyChunkSections[2] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[2].getType(x, y, 15))] || current[0][x]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[0][x] = true;
+ }
+ }
+
+ //Last block of first line
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[0][15] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[0][14] = true;
+ next[1][15] = true;
+ } else {
+ if (nearbyChunkSections[2] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[2].getType(15, y, 15))] || nearbyChunkSections[1] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[1].getType(0, y, 0))] || current[0][15]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[0][15] = true;
+ }
+
+ //All inner lines
+ for (int z = 1; z < 15; z++) {
+ //First block
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[z][0] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[z][1] = true;
+ next[z - 1][0] = true;
+ next[z + 1][0] = true;
+ } else {
+ if (nearbyChunkSections[0] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[0].getType(15, y, z))] || current[z][0]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[z][0] = true;
+ }
+
+ //All inner blocks
+ for (int x = 1; x < 15; x++) {
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[z][x] = !solid[dataBits]) {
+ dataBitsWriter.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]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[z][x] = true;
+ }
+ }
+
+ //Last block
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[z][15] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[z][14] = true;
+ next[z - 1][15] = true;
+ next[z + 1][15] = true;
+ } else {
+ if (nearbyChunkSections[1] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[1].getType(0, y, z))] || current[z][15]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[z][15] = true;
+ }
+ }
+
+ //First block of last line
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[15][0] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[15][1] = true;
+ next[14][0] = true;
+ } else {
+ if (nearbyChunkSections[3] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[3].getType(0, y, 0))] || nearbyChunkSections[0] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[0].getType(15, y, 15))] || current[15][0]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[15][0] = true;
+ }
+
+ //Last line
+ for (int x = 1; x < 15; x++) {
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[15][x] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[15][x - 1] = true;
+ next[15][x + 1] = true;
+ next[14][x] = true;
+ } else {
+ if (nearbyChunkSections[3] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[3].getType(x, y, 0))] || current[15][x]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[15][x] = true;
+ }
+ }
+
+ //Last block of last line
+ dataBits = dataBitsReader.read();
+
+ if (nextNext[15][15] = !solid[dataBits]) {
+ dataBitsWriter.skip();
+ next[15][14] = true;
+ next[14][15] = true;
+ } else {
+ if (nearbyChunkSections[3] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[3].getType(15, y, 0))] || nearbyChunkSections[1] == Chunk.EMPTY_CHUNK_SECTION || !solidGlobal[Block.REGISTRY_ID.getId(nearbyChunkSections[1].getType(0, y, 15))] || current[15][15]) {
+ dataBitsWriter.skip();
+ } else {
+ if (counter >= predefinedBlockDataBits.length) {
+ counter = 0;
+ }
+
+ dataBitsWriter.write(predefinedBlockDataBits[counter++]);
+ }
+ }
+
+ if (!obfuscate[dataBits]) {
+ next[15][15] = true;
+ }
+
+ return counter;
+ }
+
+ private boolean[] readDataPalette(DataPalette dataPalette, boolean[] temp, boolean[] global) {
+ if (dataPalette instanceof DataPaletteGlobal) {
+ return global;
+ }
+
+ IBlockData blockData;
+
+ for (int i = 0; (blockData = dataPalette.getBlockData(i)) != null; i++) {
+ temp[i] = global[Block.REGISTRY_ID.getId(blockData)];
+ }
+
+ return temp;
+ }
+
+ @Override
+ public void updateNearbyBlocks(World world, BlockPosition blockPosition) {
+ if (updateRadius >= 2) {
+ BlockPosition temp = blockPosition.west();
+ updateBlock(world, temp);
+ updateBlock(world, temp.west());
+ updateBlock(world, temp.down());
+ updateBlock(world, temp.up());
+ updateBlock(world, temp.north());
+ updateBlock(world, temp.south());
+ updateBlock(world, temp = blockPosition.east());
+ updateBlock(world, temp.east());
+ updateBlock(world, temp.down());
+ updateBlock(world, temp.up());
+ updateBlock(world, temp.north());
+ updateBlock(world, temp.south());
+ updateBlock(world, temp = blockPosition.down());
+ updateBlock(world, temp.down());
+ updateBlock(world, temp.north());
+ updateBlock(world, temp.south());
+ updateBlock(world, temp = blockPosition.up());
+ updateBlock(world, temp.up());
+ updateBlock(world, temp.north());
+ updateBlock(world, temp.south());
+ updateBlock(world, temp = blockPosition.north());
+ updateBlock(world, temp.north());
+ updateBlock(world, temp = blockPosition.south());
+ updateBlock(world, temp.south());
+ } else if (updateRadius == 1) {
+ updateBlock(world, blockPosition.west());
+ updateBlock(world, blockPosition.east());
+ updateBlock(world, blockPosition.down());
+ updateBlock(world, blockPosition.up());
+ updateBlock(world, blockPosition.north());
+ updateBlock(world, blockPosition.south());
+ } else {
+ //Do nothing if updateRadius <= 0 (test mode)
+ }
+ }
+
+ private void updateBlock(World world, BlockPosition blockPosition) {
+ if (world.isLoaded(blockPosition)) {
+ IBlockData blockData = world.getType(blockPosition);
+
+ if (obfuscateGlobal[Block.REGISTRY_ID.getId(blockData)]) {
+ world.notify(blockPosition, blockData, blockData, 3);
+ }
+ }
+ }
+
+ public enum EngineMode {
+
+ HIDE(1, "hide ores"),
+ OBFUSCATE(2, "obfuscate");
+
+ private final int id;
+ private final String description;
+
+ EngineMode(int id, String description) {
+ this.id = id;
+ this.description = description;
+ }
+
+ public static EngineMode getById(int id) {
+ for (EngineMode engineMode : values()) {
+ if (engineMode.id == id) {
+ return engineMode;
+ }
+ }
+
+ return null;
+ }
+
+ public int getId() {
+ return id;
+ }
+
+ public String getDescription() {
+ return description;
+ }
+ }
+
+ public enum ChunkEdgeMode {
+
+ DEFAULT(1, "default"),
+ WAIT(2, "wait until nearby chunks are loaded"),
+ LOAD(3, "load nearby chunks");
+
+ private final int id;
+ private final String description;
+
+ ChunkEdgeMode(int id, String description) {
+ this.id = id;
+ this.description = description;
+ }
+
+ public static ChunkEdgeMode getById(int id) {
+ for (ChunkEdgeMode chunkEdgeMode : values()) {
+ if (chunkEdgeMode.id == id) {
+ return chunkEdgeMode;
+ }
+ }
+
+ return null;
+ }
+
+ public int getId() {
+ return id;
+ }
+
+ public String getDescription() {
+ return description;
+ }
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/DataBitsReader.java b/src/main/java/com/destroystokyo/paper/antixray/DataBitsReader.java
new file mode 100644
index 000000000..92399318c
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/DataBitsReader.java
@@ -0,0 +1,56 @@
+package com.destroystokyo.paper.antixray;
+
+public class DataBitsReader {
+
+ private byte[] dataBits;
+ private int bitsPerValue;
+ private int mask;
+ private int longInDataBitsIndex;
+ private int bitInLongIndex;
+ private long current;
+
+ public void setDataBits(byte[] dataBits) {
+ this.dataBits = dataBits;
+ }
+
+ public void setBitsPerValue(int bitsPerValue) {
+ this.bitsPerValue = bitsPerValue;
+ mask = (1 << bitsPerValue) - 1;
+ }
+
+ public void setIndex(int index) {
+ this.longInDataBitsIndex = index;
+ bitInLongIndex = 0;
+ init();
+ }
+
+ private void init() {
+ if (dataBits.length > longInDataBitsIndex + 7) {
+ current = ((((long) dataBits[longInDataBitsIndex]) << 56)
+ | (((long) dataBits[longInDataBitsIndex + 1] & 0xff) << 48)
+ | (((long) dataBits[longInDataBitsIndex + 2] & 0xff) << 40)
+ | (((long) dataBits[longInDataBitsIndex + 3] & 0xff) << 32)
+ | (((long) dataBits[longInDataBitsIndex + 4] & 0xff) << 24)
+ | (((long) dataBits[longInDataBitsIndex + 5] & 0xff) << 16)
+ | (((long) dataBits[longInDataBitsIndex + 6] & 0xff) << 8)
+ | (((long) dataBits[longInDataBitsIndex + 7] & 0xff)));
+ }
+ }
+
+ public int read() {
+ int value = (int) (current >>> bitInLongIndex) & mask;
+ bitInLongIndex += bitsPerValue;
+
+ if (bitInLongIndex > 63) {
+ bitInLongIndex -= 64;
+ longInDataBitsIndex += 8;
+ init();
+
+ if (bitInLongIndex > 0) {
+ value |= current << bitsPerValue - bitInLongIndex & mask;
+ }
+ }
+
+ return value;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/DataBitsWriter.java b/src/main/java/com/destroystokyo/paper/antixray/DataBitsWriter.java
new file mode 100644
index 000000000..aca0b9d71
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/DataBitsWriter.java
@@ -0,0 +1,84 @@
+package com.destroystokyo.paper.antixray;
+
+public class DataBitsWriter {
+
+ private byte[] dataBits;
+ private int bitsPerValue;
+ private long mask;
+ private int longInDataBitsIndex;
+ private int bitInLongIndex;
+ private long current;
+ private boolean dirty;
+
+ public void setDataBits(byte[] dataBits) {
+ this.dataBits = dataBits;
+ }
+
+ public void setBitsPerValue(int bitsPerValue) {
+ this.bitsPerValue = bitsPerValue;
+ mask = (1 << bitsPerValue) - 1;
+ }
+
+ public void setIndex(int index) {
+ this.longInDataBitsIndex = index;
+ bitInLongIndex = 0;
+ init();
+ }
+
+ private void init() {
+ if (dataBits.length > longInDataBitsIndex + 7) {
+ current = ((((long) dataBits[longInDataBitsIndex]) << 56)
+ | (((long) dataBits[longInDataBitsIndex + 1] & 0xff) << 48)
+ | (((long) dataBits[longInDataBitsIndex + 2] & 0xff) << 40)
+ | (((long) dataBits[longInDataBitsIndex + 3] & 0xff) << 32)
+ | (((long) dataBits[longInDataBitsIndex + 4] & 0xff) << 24)
+ | (((long) dataBits[longInDataBitsIndex + 5] & 0xff) << 16)
+ | (((long) dataBits[longInDataBitsIndex + 6] & 0xff) << 8)
+ | (((long) dataBits[longInDataBitsIndex + 7] & 0xff)));
+ }
+
+ dirty = false;
+ }
+
+ public void finish() {
+ if (dirty && dataBits.length > longInDataBitsIndex + 7) {
+ dataBits[longInDataBitsIndex] = (byte) (current >> 56 & 0xff);
+ dataBits[longInDataBitsIndex + 1] = (byte) (current >> 48 & 0xff);
+ dataBits[longInDataBitsIndex + 2] = (byte) (current >> 40 & 0xff);
+ dataBits[longInDataBitsIndex + 3] = (byte) (current >> 32 & 0xff);
+ dataBits[longInDataBitsIndex + 4] = (byte) (current >> 24 & 0xff);
+ dataBits[longInDataBitsIndex + 5] = (byte) (current >> 16 & 0xff);
+ dataBits[longInDataBitsIndex + 6] = (byte) (current >> 8 & 0xff);
+ dataBits[longInDataBitsIndex + 7] = (byte) (current & 0xff);
+ }
+ }
+
+ public void write(int value) {
+ current = current & ~(mask << bitInLongIndex) | (value & mask) << bitInLongIndex;
+ dirty = true;
+ bitInLongIndex += bitsPerValue;
+
+ if (bitInLongIndex > 63) {
+ finish();
+ bitInLongIndex -= 64;
+ longInDataBitsIndex += 8;
+ init();
+
+ if (bitInLongIndex > 0) {
+ current = current & ~(mask >>> bitsPerValue - bitInLongIndex) | (value & mask) >>> bitsPerValue - bitInLongIndex;
+ dirty = true;
+ }
+ }
+ }
+
+ public void skip() {
+ bitInLongIndex += bitsPerValue;
+
+ if (bitInLongIndex > 63) {
+ finish();
+ bitInLongIndex -= 64;
+ longInDataBitsIndex += 8;
+ init();
+ }
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/PacketPlayOutMapChunkInfo.java b/src/main/java/com/destroystokyo/paper/antixray/PacketPlayOutMapChunkInfo.java
new file mode 100644
index 000000000..0bd269a07
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/PacketPlayOutMapChunkInfo.java
@@ -0,0 +1,80 @@
+package com.destroystokyo.paper.antixray;
+
+import net.minecraft.server.Chunk;
+import net.minecraft.server.DataPalette;
+import net.minecraft.server.IBlockData;
+import net.minecraft.server.PacketPlayOutMapChunk;
+
+public class PacketPlayOutMapChunkInfo {
+
+ private final PacketPlayOutMapChunk packetPlayOutMapChunk;
+ private final Chunk chunk;
+ private final int chunkSectionSelector;
+ private byte[] data;
+ private final int[] bitsPerValue = new int[16];
+ private final DataPalette[] dataPalettes = new DataPalette[16];
+ private final int[] dataBitsIndexes = new int[16];
+ private final IBlockData[][] predefinedBlockData = new IBlockData[16][];
+
+ public PacketPlayOutMapChunkInfo(PacketPlayOutMapChunk packetPlayOutMapChunk, Chunk chunk, int chunkSectionSelector) {
+ this.packetPlayOutMapChunk = packetPlayOutMapChunk;
+ this.chunk = chunk;
+ this.chunkSectionSelector = chunkSectionSelector;
+ }
+
+ public PacketPlayOutMapChunk getPacketPlayOutMapChunk() {
+ return packetPlayOutMapChunk;
+ }
+
+ public Chunk getChunk() {
+ return chunk;
+ }
+
+ public int getChunkSectionSelector() {
+ return chunkSectionSelector;
+ }
+
+ public byte[] getData() {
+ return data;
+ }
+
+ public void setData(byte[] data) {
+ this.data = data;
+ }
+
+ public int getBitsPerValue(int chunkSectionIndex) {
+ return bitsPerValue[chunkSectionIndex];
+ }
+
+ public void setBitsPerValue(int chunkSectionIndex, int bitsPerValue) {
+ this.bitsPerValue[chunkSectionIndex] = bitsPerValue;
+ }
+
+ public DataPalette getDataPalette(int chunkSectionIndex) {
+ return dataPalettes[chunkSectionIndex];
+ }
+
+ public void setDataPalette(int chunkSectionIndex, DataPalette dataPalette) {
+ dataPalettes[chunkSectionIndex] = dataPalette;
+ }
+
+ public int getDataBitsIndex(int chunkSectionIndex) {
+ return dataBitsIndexes[chunkSectionIndex];
+ }
+
+ public void setDataBitsIndex(int chunkSectionIndex, int dataBitsIndex) {
+ dataBitsIndexes[chunkSectionIndex] = dataBitsIndex;
+ }
+
+ public IBlockData[] getPredefinedBlockData(int chunkSectionIndex) {
+ return predefinedBlockData[chunkSectionIndex];
+ }
+
+ public void setPredefinedBlockData(int chunkSectionIndex, IBlockData[] predefinedBlockData) {
+ this.predefinedBlockData[chunkSectionIndex] = predefinedBlockData;
+ }
+
+ public boolean isWritten(int chunkSectionIndex) {
+ return bitsPerValue[chunkSectionIndex] != 0;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/antixray/PacketPlayOutMapChunkInfoAntiXray.java b/src/main/java/com/destroystokyo/paper/antixray/PacketPlayOutMapChunkInfoAntiXray.java
new file mode 100644
index 000000000..8ea2beb59
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/antixray/PacketPlayOutMapChunkInfoAntiXray.java
@@ -0,0 +1,28 @@
+package com.destroystokyo.paper.antixray;
+
+import net.minecraft.server.Chunk;
+import net.minecraft.server.PacketPlayOutMapChunk;
+
+public class PacketPlayOutMapChunkInfoAntiXray extends PacketPlayOutMapChunkInfo implements Runnable {
+
+ private Chunk[] nearbyChunks;
+ private final ChunkPacketBlockControllerAntiXray chunkPacketBlockControllerAntiXray;
+
+ public PacketPlayOutMapChunkInfoAntiXray(PacketPlayOutMapChunk packetPlayOutMapChunk, Chunk chunk, int chunkSectionSelector, ChunkPacketBlockControllerAntiXray chunkPacketBlockControllerAntiXray) {
+ super(packetPlayOutMapChunk, chunk, chunkSectionSelector);
+ this.chunkPacketBlockControllerAntiXray = chunkPacketBlockControllerAntiXray;
+ }
+
+ public Chunk[] getNearbyChunks() {
+ return nearbyChunks;
+ }
+
+ public void setNearbyChunks(Chunk... nearbyChunks) {
+ this.nearbyChunks = nearbyChunks;
+ }
+
+ @Override
+ public void run() {
+ chunkPacketBlockControllerAntiXray.obfuscate(this);
+ }
+}
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index fedc38dc1..a96a2a28d 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -862,7 +862,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
for (int i = 0; i < nbttaglist.size(); ++i) {
NBTTagCompound nbttagcompound = nbttaglist.getCompound(i);
byte b0 = nbttagcompound.getByte("Y");
- ChunkSection chunksection = new ChunkSection(b0 << 4, flag1);
+ ChunkSection chunksection = new ChunkSection(b0 << 4, flag1, world.chunkPacketBlockController.getPredefinedBlockData(chunk, b0)); // Paper - Anti-Xray - Add predefined block data
chunksection.getBlocks().a(nbttagcompound, "Palette", "BlockStates");
chunksection.a(new NibbleArray(nbttagcompound.getByteArray("BlockLight")));
diff --git a/src/main/java/net/minecraft/server/DataBits.java b/src/main/java/net/minecraft/server/DataBits.java
index 0fb3162e6..54df71404 100644
--- a/src/main/java/net/minecraft/server/DataBits.java
+++ b/src/main/java/net/minecraft/server/DataBits.java
@@ -60,6 +60,7 @@ public class DataBits {
}
}
+ public long[] getDataBits() { return this.a(); } // Paper - Anti-Xray - OBFHELPER
public long[] a() {
return this.a;
}
diff --git a/src/main/java/net/minecraft/server/EntityFallingBlock.java b/src/main/java/net/minecraft/server/EntityFallingBlock.java
index c4a25bd87..b92432d50 100644
--- a/src/main/java/net/minecraft/server/EntityFallingBlock.java
+++ b/src/main/java/net/minecraft/server/EntityFallingBlock.java
@@ -75,6 +75,7 @@ public class EntityFallingBlock extends Entity {
blockposition = new BlockPosition(this);
if (this.world.getType(blockposition).getBlock() == block && !CraftEventFactory.callEntityChangeBlockEvent(this, blockposition, Blocks.AIR.getBlockData()).isCancelled()) {
this.world.setAir(blockposition);
+ this.world.chunkPacketBlockController.updateNearbyBlocks(this.world, blockposition); // Paper - Anti-Xray
} else if (!this.world.isClientSide) {
this.die();
return;
@@ -140,6 +141,7 @@ public class EntityFallingBlock extends Entity {
return;
}
this.world.setTypeAndData(blockposition, this.block, 3);
+ this.world.chunkPacketBlockController.updateNearbyBlocks(this.world, blockposition); // Paper - Anti-Xray
// CraftBukkit end
if (block instanceof BlockFalling) {
((BlockFalling) block).a(this.world, blockposition, this.block, iblockdata);
diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
index 2652b1575..09f90450a 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -234,6 +234,7 @@ public class Explosion {
blockposition = (BlockPosition) iterator.next();
IBlockData iblockdata = this.world.getType(blockposition);
Block block = iblockdata.getBlock();
+ this.world.chunkPacketBlockController.updateNearbyBlocks(this.world, blockposition); // Paper - Anti-Xray
if (flag) {
double d0 = (double) ((float) blockposition.getX() + this.world.random.nextFloat());
diff --git a/src/main/java/net/minecraft/server/PacketDataSerializer.java b/src/main/java/net/minecraft/server/PacketDataSerializer.java
index d04afceb7..02ab42a64 100644
--- a/src/main/java/net/minecraft/server/PacketDataSerializer.java
+++ b/src/main/java/net/minecraft/server/PacketDataSerializer.java
@@ -33,6 +33,7 @@ public class PacketDataSerializer extends ByteBuf {
this.a = bytebuf;
}
+ public static int countBytes(int i) { return PacketDataSerializer.a(i); } // Paper - Anti-Xray - OBFHELPER
public static int a(int i) {
for (int j = 1; j < 5; ++j) {
if ((i & -1 << j * 7) == 0) {
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index 344b95233..32b790397 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -108,6 +108,8 @@ public class PlayerChunk {
return false;
} else if (!this.chunk.isReady()) {
return false;
+ } else if (!this.chunk.world.chunkPacketBlockController.onChunkPacketCreate(this.chunk, '\uffff', false)) { // Paper - Anti-Xray - Load nearby chunks if necessary
+ return false; // Paper - Anti-Xray - Wait and try again later
} else {
this.dirtyCount = 0;
this.h = 0;
@@ -128,6 +130,7 @@ public class PlayerChunk {
public void sendChunk(EntityPlayer entityplayer) {
if (this.done) {
+ this.chunk.world.chunkPacketBlockController.onChunkPacketCreate(this.chunk, '\uffff', true); // Paper - Anti-Xray - Load nearby chunks if necessary
entityplayer.playerConnection.sendPacket(new PacketPlayOutMapChunk(this.chunk, '\uffff'));
this.playerChunkMap.getWorld().getTracker().a(entityplayer, this.chunk);
}
@@ -192,6 +195,8 @@ public class PlayerChunk {
this.a(this.playerChunkMap.getWorld().getTileEntity(blockposition));
}
} else if (this.dirtyCount == 64) {
+ // Paper - Anti-Xray - Loading chunks here could cause a ConcurrentModificationException #1104
+ //this.chunk.world.chunkPacketBlockController.onChunkPacketCreate(this.chunk, this.h, true); // Paper - Anti-Xray - Load nearby chunks if necessary
this.a((Packet) (new PacketPlayOutMapChunk(this.chunk, this.h)));
} else {
this.a((Packet) (new PacketPlayOutMultiBlockChange(this.dirtyCount, this.dirtyBlocks, this.chunk)));
diff --git a/src/main/java/net/minecraft/server/PlayerInteractManager.java b/src/main/java/net/minecraft/server/PlayerInteractManager.java
index e34198e40..ce8f76871 100644
--- a/src/main/java/net/minecraft/server/PlayerInteractManager.java
+++ b/src/main/java/net/minecraft/server/PlayerInteractManager.java
@@ -201,6 +201,8 @@ public class PlayerInteractManager {
}
}
+
+ this.world.chunkPacketBlockController.updateNearbyBlocks(this.world, blockposition); // Paper - Anti-Xray
}
public void a(BlockPosition blockposition) {
diff --git a/src/main/java/net/minecraft/server/RegistryBlockID.java b/src/main/java/net/minecraft/server/RegistryBlockID.java
index ef332d651..35c3edca4 100644
--- a/src/main/java/net/minecraft/server/RegistryBlockID.java
+++ b/src/main/java/net/minecraft/server/RegistryBlockID.java
@@ -56,6 +56,7 @@ public class RegistryBlockID<T> implements Registry<T> {
return Iterators.filter(this.c.iterator(), Predicates.notNull());
}
+ public int size() { return this.a(); } // Paper - Anti-Xray - OBFHELPER
public int a() {
return this.b.size();
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 49e7c1589..62fd2e503 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -39,6 +39,8 @@ import org.bukkit.generator.ChunkGenerator;
// CraftBukkit end
// Paper start
import java.util.Set;
+import com.destroystokyo.paper.antixray.ChunkPacketBlockController; // Anti-Xray
+import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray; // Anti-Xray
import com.google.common.collect.Sets;
// Paper end
public abstract class World implements GeneratorAccess, IIBlockAccess, AutoCloseable {
@@ -136,6 +138,7 @@ public abstract class World implements GeneratorAccess, IIBlockAccess, AutoClose
public final org.spigotmc.SpigotWorldConfig spigotConfig; // Spigot
public final com.destroystokyo.paper.PaperWorldConfig paperConfig; // Paper
+ public final ChunkPacketBlockController chunkPacketBlockController; // Paper - Anti-Xray
public final co.aikar.timings.WorldTimingsHandler timings; // Paper
private boolean guardEntityList; // Spigot
@@ -161,6 +164,7 @@ public abstract class World implements GeneratorAccess, IIBlockAccess, AutoClose
protected World(IDataManager idatamanager, WorldData worlddata, WorldProvider worldprovider, MethodProfiler methodprofiler, boolean flag, ChunkGenerator gen, org.bukkit.World.Environment env) {
this.spigotConfig = new org.spigotmc.SpigotWorldConfig( worlddata.getName() ); // Spigot
this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig(worlddata.getName(), this.spigotConfig); // Paper
+ this.chunkPacketBlockController = this.paperConfig.antiXray ? new ChunkPacketBlockControllerAntiXray(this.paperConfig) : ChunkPacketBlockController.NO_OPERATION_INSTANCE; // Paper - Anti-Xray
this.generator = gen;
this.world = new CraftWorld((WorldServer) this, gen, env);
this.ticksPerAnimalSpawns = this.getServer().getTicksPerAnimalSpawns(); // CraftBukkit
@@ -500,6 +504,7 @@ public abstract class World implements GeneratorAccess, IIBlockAccess, AutoClose
((IWorldAccess) this.v.get(j)).a(this, blockposition, iblockdata, iblockdata1, i);
}
+ this.chunkPacketBlockController.updateNearbyBlocks(this, blockposition); // Paper - Anti-Xray
}
public void update(BlockPosition blockposition, Block block) {
--
2.18.0
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