Paper/patches/server/0440-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch
Spottedleaf 7d10cdea03
Merge tuinity (#6413)
This PR contains all of Tuinity's patches. Very notable ones are:

- Highly optimised collisions
- Optimised entity lookups by bounding box (Mojang made regressions in 1.17, this brings it back to 1.16)
- Starlight https://github.com/PaperMC/Starlight
- Rewritten dataconverter system https://github.com/PaperMC/DataConverter
- Random block ticking optimisation (wrongly dropped from Paper 1.17)
- Chunk ticking optimisations
- Anything else I've forgotten in the 60 or so patches

If you are a previous Tuinity user, your config will not migrate. You must do it yourself. The config options have simply been moved into paper.yml, so it will be an easy migration. However, please note that the chunk loading options in tuinity.yml are NOT compatible with the options in paper.yml. 

* Port tuinity, initial patchset

* Update gradle to 7.2

jmp said it fixes rebuildpatches not working for me. it fucking better

* Completely clean apply

* Remove tuinity config, add per player api patch

* Remove paper reobf mappings patch

* Properly update gradlew

* Force clean rebuild

* Mark fixups

Comments and ATs still need to be done

* grep -r "Tuinity"

* Fixup

* Ensure gameprofile lastaccess is written only under the state lock

* update URL for dataconverter

* Only clean rebuild tuinity patches

might fix merge conflicts

* Use UTF-8 for gradlew

* Clean rb patches again

* Convert block ids used as item ids

Neither the converters of pre 1.13 nor DFU handled these cases,
as by the time they were written the game at the time didn't
consider these ids valid - they would be air. Because of this,
some worlds have logspam since only DataConverter (not DFU or
legacy converters) will warn when an invalid id has been
seen.

While quite a few do need to now be considered as air, quite a lot
do not. So it makes sense to add conversion for these items, instead
of simply suppressing or ignoring the logs. I've now added id -> string conversion
for all block ids that could be used as items that existed in the game
before 1.7.10 (I have no interest in tracking down the
exact version block ids stopped working) that were on
https://minecraft-ids.grahamedgecombe.com/

Items that did not directly convert to new items will
be instead converted to air: stems, wheat crops, piston head,
tripwire wire block

* Fix LightPopulated parsing in V1466

The DFU code was checking if the number existed, not if it
didn't exist. I misread the original code.

* Always parse protochunk light sources unless it is marked as non-lit

Chunks not marked as lit will always go through the light engine,
so they should always have their block sources parsed.

* Update custom names to JSON for players

Missed this fix from CB, as it was inside
the DataFixers class.

I decided to double check all of the CB changes again:

DataFixers.java was the only area I missed, as I had inspected all
datafixer diffs and implemented them all into DataConverter. I also
checked Bootstrap.java again, and re-evaluated their changes. I had
previously done this, but determined that they were all bad.

The changes to make standing_sign block map to oak_sign block in
V1450 is bad, because that's not the item id V1450 accepts. Only
in 1.14 did oak_sign even exist, and as expected there is a converter
to rename all existing sign items/blocks.

The fix to register the portal block under id 1440 is useless, as
the flattenning logic will default to the lowest registered id - which
is the exact blockstate that CB registers into 1440. So it just
doesn't do anything.

The extra item ids in the id -> string converter are already added,
but I found this from EMC originally.

The change for the spawn egg id 23 -> Arrow is just wrong,
that id DOES correspond to TippedArrow, NOT Arrow. As
expected, the spawn egg already has a dedicated mapping for
Arrow, which is id 10 - which was Arrow's entity id.

I also ported a fix for the cooked_fished id update. This doesn't
really matter since there is already a dataconverter to fix this,
but the game didn't accept cooked_fished at the time. So I see
no harm.

* Review all converters and walkers

- Refactor V99 to have helper methods for defining entity/tile
  entity types
- Automatically namespace all ids that should be namespaced.
  While vanilla never saved non-namespaced data for things that
  are namespaced, plugins/users might have.
- Synchronised the identity ensure map in HelperBlockFlatteningV1450
- Code style consistency
- Add missing log warning in V102 for ITEM_NAME type conversion
- Use getBoolean instead of getByte
- Use ConverterAbstractEntityRename for V143 TippedArrow -> Arrow
  rename, as it will affect ENTITY_NAME type
- Always set isVillager to false in V502 for Zombie
- Register V808's converter under subversion 1 like DFU
- Register a breakpoint for V1.17.1. In the future, all final
  versions of major releases will have a breakpoint so that
  the work required to determine if a converter needs a breakpoint
  is minimal
- Validate that a dataconverter is only registered for a version
  that is registered
- ConverterFlattenTileEntity is actually ConverterFlattenEntity
  It even registered the converters under TILE_ENTITY, instead of
  ENTITY.
- Fix id comparison in V1492 STRUCTURE_FEATURE renamer
- Use ConverterAbstractStatsRename for V1510 stats renamer
  At the time I had written that class, the abstract renamer didn't
  exist.
- Ensure OwnerUUID is at least set to empty string in
  V1904 if the ocelot is converted to a cat (this is
  likely so that it retains a collar)
- Use generic read/write for Records in V1946
  Records is actually a list, not a map. So reading map was
  invalid.

* Always set light to zero when propagating decrease

This fixes an almost infinite loop where light values
would be spam queued on a very small subset on blocks.

This also likely fixes the memory issues people were
seeing.

* re-organize patches

* Apply and fix conflicts

* Revert some patches

getChunkAt retains chunks so that plugins don't spam loads
revert mc-4 fix will remain unless issues pop up

* Shuffle iterated chunks if per player is not enabled

Can help with some mob spawning stacking up at locations

* Make per player default, migrate all configs

* Adjust comments in fixups

* Rework config for player chunk loader

Old config is not compatible. Move all configs to be
under `settings` in paper.yml

The player chunk loader has been modified to
less aggressively load chunks, but to send
chunks at higher rates compared to tuinity. There are
new config entries to tune this behavior.

* Add back old constructor to CompressionEncoder/Decoder (fixes
 Tuinity #358)

* Raise chunk loading default limits

* Reduce worldgen thread workers for lower core count cpus

* Raise limits for chunk loading config

Also place it under `chunk-loading`

* Disable max chunk send rate by default

* Fix conflicts and rebuild patches

* Drop default send rate again

Appears to be still causing problems for no known reason

* Raise chunk send limits to 100 per player

While a low limit fixes ping issues for some people, most people
do not suffer from this issue and thus should not suffer from
an extremely slow load-in rate.

* Rebase part 1

Autosquash the fixups

* Move not implemented up

* Fixup mc-dev fixes

Missed this one

* Rebase per player viewdistance api into the original api patch

* Remove old light engine patch part 1

The prioritisation must be kept from it, so that part
has been rebased into the priority patch.
Part 2 will deal with rebasing all of the patches _after_

* Rebase remaining patches for old light patch removal

* Remove other mid tick patch

* Remove Optimize-PlayerChunkMap-memory-use-for-visibleChunks.patch

Replaced by `Do not copy visible chunks`

* Revert AT for Vec3i setX/Y/Z

The class is immutable. set should not be exposed

* Remove old IntegerUtil class

* Replace old CraftChunk#getEntities patch

* Remove import for SWMRNibbleArray in ChunkAccess

* Finished merge checklist

* Remove ensureTickThread impl in urgency patch

Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
2021-08-31 04:02:11 -07:00

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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/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index f1034cfb63ea37c22e67b5d4a18214774f208de2..eea3035bcc7f10480beccb6b090b3624b3dbbec3 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -433,4 +433,16 @@ public class PaperConfig {
log("Async Chunks: Enabled - Chunks will be loaded much faster, without lag.");
}
}
+
+ public static boolean allowBlockPermanentBreakingExploits = false;
+ private static void allowBlockPermanentBreakingExploits() {
+ if (config.contains("allow-perm-block-break-exploits")) {
+ allowBlockPermanentBreakingExploits = config.getBoolean("allow-perm-block-break-exploits", false);
+ config.set("allow-perm-block-break-exploits", null);
+ }
+
+ config.set("settings.unsupported-settings.allow-permanent-block-break-exploits-readme", "This setting controls if players should be able to break bedrock, end portals and other intended to be permanent blocks.");
+ allowBlockPermanentBreakingExploits = getBoolean("settings.unsupported-settings.allow-permanent-block-break-exploits", allowBlockPermanentBreakingExploits);
+
+ }
}
diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
index a861b4b55862b1c5583101fe7f28a3a43c547468..1575fb0bbad6e11f25fb9ce51fd1f15a1b11e0fe 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
@@ -174,6 +174,7 @@ 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)) {
@@ -332,7 +333,7 @@ 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 f7fc4a9d3c0132df6024b33e4f893d3b7ebc6ec3..970a67d82219fa642080c78a814c12ca8d9a5ee9 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -425,6 +425,10 @@ 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 6a31e3a3466369ede28e28bc3b9fda8dcb77e136..d6a3f3a2edae806b0ebf5bf5ac445116c0d64535 100644
--- a/src/main/java/net/minecraft/world/level/block/Block.java
+++ b/src/main/java/net/minecraft/world/level/block/Block.java
@@ -91,6 +91,19 @@ public class Block extends BlockBehaviour implements ItemLike {
protected final StateDefinition<Block, BlockState> stateDefinition;
private BlockState defaultBlockState;
// Paper start
+ public final boolean isDestroyable() {
+ return com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits ||
+ 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 c345bd7542f3ffa09719864887e1516f1182e7e3..4eac07022a7d896ee8921afa6d35cba7f0c89941 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
@@ -200,6 +200,12 @@ 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 (!com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits && 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);
@@ -232,7 +238,7 @@ 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) {
@@ -261,7 +267,14 @@ 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 (com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits || 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 a087eec747bb355afd627c6042d20440c3e43e1b..bea9c7ac0fe08c3ca3309e8311f192cc557ca67d 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
@@ -206,7 +206,7 @@ public abstract class BlockBehaviour {
@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
@@ -664,7 +664,11 @@ public abstract class BlockBehaviour {
public Block getBlock() {
return (Block) this.owner;
}
-
+ // Paper start
+ public final boolean isDestroyable() {
+ return getBlock().isDestroyable();
+ }
+ // Paper end
public Material getMaterial() {
return this.material;
}
@@ -762,7 +766,7 @@ 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) {