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Paper-Old/patches/server/0422-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch
Nassim Jahnke ef0e5a642d
Updated Upstream (Bukkit/CraftBukkit/Spigot)
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:
9ae3f10f SPIGOT-3842: Add Player#fireworkBoost() and expand Firework API
48c0c547 PR-786: Add methods to get sounds from entities

CraftBukkit Changes:
5cc9c022a SPIGOT-7152: Handle hand item changing during air interact event
4ffa1acf6 SPIGOT-7154: Players get kicked when interacting with a conversation
4daa21123 SPIGOT-3842: Add Player#fireworkBoost() and expand Firework API
e5d6a9bbf PR-1100: Add methods to get sounds from entities
b7e9f1c8b SPIGOT-7146: Reduce use of Material switch in ItemMeta

Spigot Changes:
4c157bb4 Rebuild patches
2022-09-12 13:31:45 +02:00

170 Zeilen
10 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 13 May 2020 23:01:26 -0400
Subject: [PATCH] Protect Bedrock and End Portal/Frames from being destroyed
This fixes exploits that let players destroy bedrock by Pistons, explosions
and Mushrooom/Tree generation.
These blocks are designed to not be broken except by creative players/commands.
So protect them from a multitude of methods of destroying them.
A config is provided if you rather let players use these exploits, and let
them destroy the worlds End Portals and get on top of the nether easy.
diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
index 38bb502e9f1272020a23a3ef8ebb0cb1a5a251ef..b18b0e1b5e059f08fd3117eaa0fb28a10fac6562 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
@@ -172,6 +172,7 @@ public class Explosion {
for (float f1 = 0.3F; f > 0.0F; f -= 0.22500001F) {
BlockPos blockposition = new BlockPos(d4, d5, d6);
BlockState iblockdata = this.level.getBlockState(blockposition);
+ if (!iblockdata.isDestroyable()) continue; // Paper
FluidState fluid = iblockdata.getFluidState(); // Paper
if (!this.level.isInWorldBounds(blockposition)) {
@@ -350,7 +351,7 @@ public class Explosion {
BlockState iblockdata = this.level.getBlockState(blockposition);
Block block = iblockdata.getBlock();
- if (!iblockdata.isAir()) {
+ if (!iblockdata.isAir() && iblockdata.isDestroyable()) { // Paper
BlockPos blockposition1 = blockposition.immutable();
this.level.getProfiler().push("explosion_blocks");
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 4c93c2ee69c2728d798a750981275f4fc6840525..160a3cb1d70f765d277169bb4928238b6a575f26 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -429,6 +429,10 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
public boolean setBlock(BlockPos pos, BlockState state, int flags, int maxUpdateDepth) {
// CraftBukkit start - tree generation
if (this.captureTreeGeneration) {
+ // Paper start
+ BlockState type = getBlockState(pos);
+ if (!type.isDestroyable()) return false;
+ // Paper end
CraftBlockState blockstate = this.capturedBlockStates.get(pos);
if (blockstate == null) {
blockstate = CapturedBlockState.getTreeBlockState(this, pos, flags);
diff --git a/src/main/java/net/minecraft/world/level/block/Block.java b/src/main/java/net/minecraft/world/level/block/Block.java
index 77125720fcbeb7bfc180effb27cfb78c74832ce5..cb11cef117fc896ddcb40993ddb852a2e717c2ad 100644
--- a/src/main/java/net/minecraft/world/level/block/Block.java
+++ b/src/main/java/net/minecraft/world/level/block/Block.java
@@ -92,6 +92,19 @@ public class Block extends BlockBehaviour implements ItemLike {
protected final StateDefinition<Block, BlockState> stateDefinition;
private BlockState defaultBlockState;
// Paper start
+ public final boolean isDestroyable() {
+ return io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits ||
+ this != Blocks.BEDROCK &&
+ this != Blocks.END_PORTAL_FRAME &&
+ this != Blocks.END_PORTAL &&
+ this != Blocks.END_GATEWAY &&
+ this != Blocks.COMMAND_BLOCK &&
+ this != Blocks.REPEATING_COMMAND_BLOCK &&
+ this != Blocks.CHAIN_COMMAND_BLOCK &&
+ this != Blocks.BARRIER &&
+ this != Blocks.STRUCTURE_BLOCK &&
+ this != Blocks.JIGSAW;
+ }
public co.aikar.timings.Timing timing;
public co.aikar.timings.Timing getTiming() {
if (timing == null) {
diff --git a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
index 76720517cd2d82065eb8430cf854b536295341db..29755807fdb6c30e31c0ec2bbf33bed9afd5d478 100644
--- a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
@@ -199,6 +199,12 @@ public class PistonBaseBlock extends DirectionalBlock {
@Override
public boolean triggerEvent(BlockState state, Level world, BlockPos pos, int type, int data) {
Direction enumdirection = (Direction) state.getValue(PistonBaseBlock.FACING);
+ // Paper start - prevent retracting when we're facing the wrong way (we were replaced before retraction could occur)
+ Direction directionQueuedAs = Direction.from3DDataValue(data & 7); // Paper - copied from below
+ if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits && enumdirection != directionQueuedAs) {
+ return false;
+ }
+ // Paper end - prevent retracting when we're facing the wrong way
if (!world.isClientSide) {
boolean flag = this.getNeighborSignal(world, pos, enumdirection);
@@ -231,7 +237,7 @@ public class PistonBaseBlock extends DirectionalBlock {
BlockState iblockdata1 = (BlockState) ((BlockState) Blocks.MOVING_PISTON.defaultBlockState().setValue(MovingPistonBlock.FACING, enumdirection)).setValue(MovingPistonBlock.TYPE, this.isSticky ? PistonType.STICKY : PistonType.DEFAULT);
world.setBlock(pos, iblockdata1, 20);
- world.setBlockEntity(MovingPistonBlock.newMovingBlockEntity(pos, iblockdata1, (BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true));
+ world.setBlockEntity(MovingPistonBlock.newMovingBlockEntity(pos, iblockdata1, (BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true)); // Paper - diff on change
world.blockUpdated(pos, iblockdata1.getBlock());
iblockdata1.updateNeighbourShapes(world, pos, 2);
if (this.isSticky) {
@@ -260,7 +266,14 @@ public class PistonBaseBlock extends DirectionalBlock {
}
}
} else {
- world.removeBlock(pos.relative(enumdirection), false);
+ // Paper start - fix headless pistons breaking blocks
+ BlockPos headPos = pos.relative(enumdirection);
+ if (io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits || world.getBlockState(headPos) == Blocks.PISTON_HEAD.defaultBlockState().setValue(FACING, enumdirection)) { // double check to make sure we're not a headless piston.
+ world.removeBlock(headPos, false);
+ } else {
+ ((ServerLevel)world).getChunkSource().blockChanged(headPos); // ... fix client desync
+ }
+ // Paper end - fix headless pistons breaking blocks
}
world.playSound((Player) null, pos, SoundEvents.PISTON_CONTRACT, SoundSource.BLOCKS, 0.5F, world.random.nextFloat() * 0.15F + 0.6F);
diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
index 3ec96c7f2ad0d6ba8ad32a4aabb0292b5c2ff5b4..ad38a7ced7f3dc05fb3d133e9da39f0a5eb0915b 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
@@ -223,7 +223,7 @@ public abstract class BlockBehaviour {
/** @deprecated */
@Deprecated
public boolean canBeReplaced(BlockState state, BlockPlaceContext context) {
- return this.material.isReplaceable() && (context.getItemInHand().isEmpty() || !context.getItemInHand().is(this.asItem()));
+ return this.material.isReplaceable() && (context.getItemInHand().isEmpty() || !context.getItemInHand().is(this.asItem())) && (state.isDestroyable() || (context.getPlayer() != null && context.getPlayer().getAbilities().instabuild)); // Paper
}
/** @deprecated */
@@ -727,6 +727,12 @@ public abstract class BlockBehaviour {
return ((Block) this.owner).builtInRegistryHolder();
}
+ // Paper start
+ public final boolean isDestroyable() {
+ return getBlock().isDestroyable();
+ }
+ // Paper end
+
public Material getMaterial() {
return this.material;
}
@@ -824,7 +830,7 @@ public abstract class BlockBehaviour {
}
public PushReaction getPistonPushReaction() {
- return this.getBlock().getPistonPushReaction(this.asState());
+ return !isDestroyable() ? PushReaction.BLOCK : this.getBlock().getPistonPushReaction(this.asState()); // Paper
}
public boolean isSolidRender(BlockGetter world, BlockPos pos) {
diff --git a/src/main/java/net/minecraft/world/level/portal/PortalForcer.java b/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
index 7aa6181237eaec1df2ed2fdcd3b1137dfe89ce69..1311d69bb2fa7b3617936e6ad6eb5236fedc260d 100644
--- a/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
+++ b/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
@@ -210,6 +210,13 @@ public class PortalForcer {
for (int j = -1; j < 3; ++j) {
for (int k = -1; k < 4; ++k) {
temp.setWithOffset(pos, portalDirection.getStepX() * j + enumdirection1.getStepX() * distanceOrthogonalToPortal, k, portalDirection.getStepZ() * j + enumdirection1.getStepZ() * distanceOrthogonalToPortal);
+ // Paper start - prevent destroying unbreakable blocks
+ if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits) {
+ if (!this.level.getBlockState(temp).isDestroyable()) {
+ return false;
+ }
+ }
+ // Paper end - prevent destroying unbreakable blocks
if (k < 0 && !this.level.getBlockState(temp).getMaterial().isSolid()) {
return false;
}