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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
137 lines
8.4 KiB
Diff
137 lines
8.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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Date: Thu, 6 Jan 2022 15:59:06 -0800
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Subject: [PATCH] Expose vanilla BiomeProvider from WorldInfo
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 7ee46b9f98794d1fec0a8feea71fd495f9199dd0..d19f2ca702ffa32c616ec821219079e2b784a460 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -597,7 +597,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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List<CustomSpawner> list = ImmutableList.of(new PhantomSpawner(), new PatrolSpawner(), new CatSpawner(), new VillageSiege(), new WanderingTraderSpawner(iworlddataserver));
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LevelStem worlddimension = (LevelStem) dimensions.get(dimensionKey);
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- org.bukkit.generator.WorldInfo worldInfo = new org.bukkit.craftbukkit.generator.CraftWorldInfo(iworlddataserver, worldSession, org.bukkit.World.Environment.getEnvironment(dimension), worlddimension.type().value());
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+ org.bukkit.generator.WorldInfo worldInfo = new org.bukkit.craftbukkit.generator.CraftWorldInfo(iworlddataserver, worldSession, org.bukkit.World.Environment.getEnvironment(dimension), worlddimension.type().value(), worlddimension.generator(), this.registryAccess()); // Paper - Expose vanilla BiomeProvider from WorldInfo
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if (biomeProvider == null && gen != null) {
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biomeProvider = gen.getDefaultBiomeProvider(worldInfo);
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index c366992f3e48f9a3a69ba48491d678ba73e81d61..b3e1f987d31ef5a8f90bc366e248de86e93b9634 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -1272,7 +1272,7 @@ public final class CraftServer implements Server {
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List<CustomSpawner> list = ImmutableList.of(new PhantomSpawner(), new PatrolSpawner(), new CatSpawner(), new VillageSiege(), new WanderingTraderSpawner(worlddata));
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LevelStem worlddimension = iregistry.get(actualDimension);
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- WorldInfo worldInfo = new CraftWorldInfo(worlddata, worldSession, creator.environment(), worlddimension.type().value());
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+ WorldInfo worldInfo = new CraftWorldInfo(worlddata, worldSession, creator.environment(), worlddimension.type().value(), worlddimension.generator(), this.getHandle().getServer().registryAccess()); // Paper - Expose vanilla BiomeProvider from WorldInfo
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if (biomeProvider == null && generator != null) {
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biomeProvider = generator.getDefaultBiomeProvider(worldInfo);
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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index df74b47477553bdee0b5faaf40835b94c41316dd..c787fbcef295f2108a6f843524c00cdea4660f27 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -211,6 +211,29 @@ public class CraftWorld extends CraftRegionAccessor implements World {
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public int getPlayerCount() {
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return world.players().size();
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}
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+
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+ @Override
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+ public BiomeProvider vanillaBiomeProvider() {
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+ net.minecraft.server.level.ServerChunkCache serverCache = this.getHandle().chunkSource;
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+
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+ final net.minecraft.world.level.biome.BiomeSource biomeSource = serverCache.getGenerator().getBiomeSource();
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+ final net.minecraft.world.level.biome.Climate.Sampler sampler = serverCache.randomState().sampler();
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+
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+ final List<Biome> possibleBiomes = biomeSource.possibleBiomes().stream()
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+ .map(biome -> org.bukkit.craftbukkit.block.CraftBiome.minecraftHolderToBukkit(biome))
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+ .toList();
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+ return new BiomeProvider() {
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+ @Override
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+ public Biome getBiome(final org.bukkit.generator.WorldInfo worldInfo, final int x, final int y, final int z) {
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+ return org.bukkit.craftbukkit.block.CraftBiome.minecraftHolderToBukkit(biomeSource.getNoiseBiome(x >> 2, y >> 2, z >> 2, sampler));
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+ }
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+
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+ @Override
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+ public List<Biome> getBiomes(final org.bukkit.generator.WorldInfo worldInfo) {
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+ return possibleBiomes;
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+ }
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+ };
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+ }
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// Paper end
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private static final Random rand = new Random();
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diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftWorldInfo.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftWorldInfo.java
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index 5d655d6cd3e23e0287069f8bdf77601487e862fd..cf57c6e9ce63f7b1d95d91ead2453409a31a5c52 100644
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--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftWorldInfo.java
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+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftWorldInfo.java
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@@ -17,8 +17,14 @@ public class CraftWorldInfo implements WorldInfo {
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private final long seed;
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private final int minHeight;
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private final int maxHeight;
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+ // Paper start
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+ private final net.minecraft.world.level.chunk.ChunkGenerator vanillaChunkGenerator;
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+ private final net.minecraft.core.RegistryAccess.Frozen registryAccess;
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- public CraftWorldInfo(ServerLevelData worldDataServer, LevelStorageSource.LevelStorageAccess session, World.Environment environment, DimensionType dimensionManager) {
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+ public CraftWorldInfo(ServerLevelData worldDataServer, LevelStorageSource.LevelStorageAccess session, World.Environment environment, DimensionType dimensionManager, net.minecraft.world.level.chunk.ChunkGenerator chunkGenerator, net.minecraft.core.RegistryAccess.Frozen registryAccess) {
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+ this.registryAccess = registryAccess;
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+ this.vanillaChunkGenerator = chunkGenerator;
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+ // Paper end
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this.name = worldDataServer.getLevelName();
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this.uuid = WorldUUID.getUUID(session.levelDirectory.path().toFile());
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this.environment = environment;
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@@ -27,15 +33,6 @@ public class CraftWorldInfo implements WorldInfo {
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this.maxHeight = dimensionManager.minY() + dimensionManager.height();
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}
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- public CraftWorldInfo(String name, UUID uuid, World.Environment environment, long seed, int minHeight, int maxHeight) {
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- this.name = name;
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- this.uuid = uuid;
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- this.environment = environment;
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- this.seed = seed;
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- this.minHeight = minHeight;
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- this.maxHeight = maxHeight;
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- }
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-
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@Override
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public String getName() {
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return this.name;
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@@ -65,4 +62,34 @@ public class CraftWorldInfo implements WorldInfo {
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public int getMaxHeight() {
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return this.maxHeight;
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}
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+
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+ // Paper start
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+ @Override
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+ public org.bukkit.generator.BiomeProvider vanillaBiomeProvider() {
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+ final net.minecraft.world.level.levelgen.RandomState randomState;
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+ if (vanillaChunkGenerator instanceof net.minecraft.world.level.levelgen.NoiseBasedChunkGenerator noiseBasedChunkGenerator) {
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+ randomState = net.minecraft.world.level.levelgen.RandomState.create(noiseBasedChunkGenerator.generatorSettings().value(),
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+ registryAccess.lookupOrThrow(net.minecraft.core.registries.Registries.NOISE), getSeed());
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+ } else {
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+ randomState = net.minecraft.world.level.levelgen.RandomState.create(net.minecraft.world.level.levelgen.NoiseGeneratorSettings.dummy(),
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+ registryAccess.lookupOrThrow(net.minecraft.core.registries.Registries.NOISE), getSeed());
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+ }
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+
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+ final java.util.List<org.bukkit.block.Biome> possibleBiomes = CraftWorldInfo.this.vanillaChunkGenerator.getBiomeSource().possibleBiomes().stream()
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+ .map(biome -> org.bukkit.craftbukkit.block.CraftBiome.minecraftHolderToBukkit(biome))
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+ .toList();
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+ return new org.bukkit.generator.BiomeProvider() {
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+ @Override
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+ public org.bukkit.block.Biome getBiome(final WorldInfo worldInfo, final int x, final int y, final int z) {
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+ return org.bukkit.craftbukkit.block.CraftBiome.minecraftHolderToBukkit(
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+ CraftWorldInfo.this.vanillaChunkGenerator.getBiomeSource().getNoiseBiome(x >> 2, y >> 2, z >> 2, randomState.sampler()));
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+ }
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+
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+ @Override
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+ public java.util.List<org.bukkit.block.Biome> getBiomes(final org.bukkit.generator.WorldInfo worldInfo) {
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+ return possibleBiomes;
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+ }
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+ };
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+ }
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+ // Paper end
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}
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