diff options
Diffstat (limited to 'Spigot-Server-Patches/0489-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch')
| -rw-r--r-- | Spigot-Server-Patches/0489-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/Spigot-Server-Patches/0489-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch b/Spigot-Server-Patches/0489-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch new file mode 100644 index 0000000000..c3c3e5ce98 --- /dev/null +++ b/Spigot-Server-Patches/0489-Protect-Bedrock-and-End-Portal-Frames-from-being-des.patch @@ -0,0 +1,168 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Aikar <[email protected]> +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 093605fe8e079d9ec973702c55ea6caddf0369f1..3d63215a855c71d257b18a247eb7f0b2d7908bce 100644 +--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java ++++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java +@@ -411,4 +411,17 @@ public class PaperConfig { + private static void midTickChunkTasks() { + midTickChunkTasks = getInt("settings.chunk-tasks-per-tick", midTickChunkTasks); + } ++ ++ 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/server/Block.java b/src/main/java/net/minecraft/server/Block.java +index 4f9c6b25f152b348a00dadf4b8f58ec3adc3476e..81725611d5b8c10c05d561984f92dc67349900ec 100644 +--- a/src/main/java/net/minecraft/server/Block.java ++++ b/src/main/java/net/minecraft/server/Block.java +@@ -25,6 +25,14 @@ public class Block extends BlockBase implements IMaterial { + protected final BlockStateList<Block, IBlockData> blockStateList; + private IBlockData blockData; + // 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.MOVING_PISTON; // try to prevent creation of headless pistons ++ } + public co.aikar.timings.Timing timing; + public co.aikar.timings.Timing getTiming() { + if (timing == null) { +diff --git a/src/main/java/net/minecraft/server/BlockBase.java b/src/main/java/net/minecraft/server/BlockBase.java +index 4c7343a1192dd1a8dc7594b57329e6bb6fefb6b2..7b0cc7833448a9e77e85be10f4e02ce43fdead58 100644 +--- a/src/main/java/net/minecraft/server/BlockBase.java ++++ b/src/main/java/net/minecraft/server/BlockBase.java +@@ -138,7 +138,7 @@ public abstract class BlockBase { + + @Deprecated + public boolean a(IBlockData iblockdata, BlockActionContext blockactioncontext) { +- return this.material.isReplaceable() && (blockactioncontext.getItemStack().isEmpty() || blockactioncontext.getItemStack().getItem() != this.getItem()); ++ return this.material.isReplaceable() && (blockactioncontext.getItemStack().isEmpty() || blockactioncontext.getItemStack().getItem() != this.getItem()) && (iblockdata.isDestroyable() || (blockactioncontext.getEntity() != null && blockactioncontext.getEntity().abilities.canInstantlyBuild)); // Paper + } + + @Deprecated +@@ -342,7 +342,11 @@ public abstract class BlockBase { + public Block getBlock() { + return (Block) this.c; + } +- ++ // Paper start ++ public final boolean isDestroyable() { ++ return getBlock().isDestroyable(); ++ } ++ // Paper end + public Material getMaterial() { + return this.g; + } +@@ -432,7 +436,7 @@ public abstract class BlockBase { + } + + public EnumPistonReaction getPushReaction() { +- return this.getBlock().getPushReaction(this.p()); ++ return !isDestroyable() ? EnumPistonReaction.BLOCK : this.getBlock().getPushReaction(this.p()); // Paper + } + + public boolean i(IBlockAccess iblockaccess, BlockPosition blockposition) { +diff --git a/src/main/java/net/minecraft/server/BlockPiston.java b/src/main/java/net/minecraft/server/BlockPiston.java +index c068a4115e3b82f4886d822d2472e8b522946674..6b1253fe7e8d4bb71d4d19c063d3e84c167c4d7b 100644 +--- a/src/main/java/net/minecraft/server/BlockPiston.java ++++ b/src/main/java/net/minecraft/server/BlockPiston.java +@@ -165,6 +165,12 @@ public class BlockPiston extends BlockDirectional { + @Override + public boolean a(IBlockData iblockdata, World world, BlockPosition blockposition, int i, int j) { + EnumDirection enumdirection = (EnumDirection) iblockdata.get(BlockPiston.FACING); ++ // Paper start - prevent retracting when we're facing the wrong way (we were replaced before retraction could occur) ++ EnumDirection directionQueuedAs = EnumDirection.fromType1(j & 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.a(world, blockposition, enumdirection); +@@ -196,7 +202,7 @@ public class BlockPiston extends BlockDirectional { + IBlockData iblockdata1 = (IBlockData) ((IBlockData) Blocks.MOVING_PISTON.getBlockData().set(BlockPistonMoving.a, enumdirection)).set(BlockPistonMoving.b, this.sticky ? BlockPropertyPistonType.STICKY : BlockPropertyPistonType.DEFAULT); + + world.setTypeAndData(blockposition, iblockdata1, 20); +- world.setTileEntity(blockposition, BlockPistonMoving.a((IBlockData) this.getBlockData().set(BlockPiston.FACING, EnumDirection.fromType1(j & 7)), enumdirection, false, true)); ++ world.setTileEntity(blockposition, BlockPistonMoving.a((IBlockData) this.getBlockData().set(BlockPiston.FACING, EnumDirection.fromType1(j & 7)), enumdirection, false, true)); // Paper - diff on change, j is facing direction - copy this above + world.update(blockposition, iblockdata1.getBlock()); + iblockdata1.a(world, blockposition, 2); + if (this.sticky) { +@@ -225,7 +231,14 @@ public class BlockPiston extends BlockDirectional { + } + } + } else { +- world.a(blockposition.shift(enumdirection), false); ++ // Paper start - fix headless pistons breaking blocks ++ BlockPosition headPos = blockposition.shift(enumdirection); ++ if (com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits || world.getType(headPos) == Blocks.PISTON_HEAD.getBlockData().set(FACING, enumdirection)) { // double check to make sure we're not a headless piston. ++ world.setAir(headPos, false); ++ } else { ++ ((WorldServer)world).getChunkProvider().flagDirty(headPos); // ... fix client desync ++ } ++ // Paper end - fix headless pistons breaking blocks + } + + world.playSound((EntityHuman) null, blockposition, SoundEffects.BLOCK_PISTON_CONTRACT, SoundCategory.BLOCKS, 0.5F, world.random.nextFloat() * 0.15F + 0.6F); +diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java +index 22a19e761fdec68cc9405988b977021a8b6398eb..e408ec8c645e9ceb278a13a5b0de8ecf57f3929e 100644 +--- a/src/main/java/net/minecraft/server/Explosion.java ++++ b/src/main/java/net/minecraft/server/Explosion.java +@@ -124,6 +124,7 @@ public class Explosion { + for (float f1 = 0.3F; f > 0.0F; f -= 0.22500001F) { + BlockPosition blockposition = new BlockPosition(d4, d5, d6); + IBlockData iblockdata = this.world.getType(blockposition); ++ if (!iblockdata.isDestroyable()) continue; // Paper + Fluid fluid = iblockdata.getFluid(); // Paper + Optional<Float> optional = this.k.a(this, this.world, blockposition, iblockdata, fluid); + +@@ -277,7 +278,7 @@ public class Explosion { + IBlockData iblockdata = this.world.getType(blockposition); + Block block = iblockdata.getBlock(); + +- if (!iblockdata.isAir()) { ++ if (!iblockdata.isAir() && iblockdata.isDestroyable()) { // Paper + BlockPosition blockposition1 = blockposition.immutableCopy(); + + this.world.getMethodProfiler().enter("explosion_blocks"); +diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java +index d0e0fb0780e97102d0010f05902cd3218d4b7d3d..a173d2562e0c549184f5e82f112843a9893cb502 100644 +--- a/src/main/java/net/minecraft/server/World.java ++++ b/src/main/java/net/minecraft/server/World.java +@@ -406,6 +406,10 @@ public abstract class World implements GeneratorAccess, AutoCloseable { + public boolean a(BlockPosition blockposition, IBlockData iblockdata, int i, int j) { + // CraftBukkit start - tree generation + if (this.captureTreeGeneration) { ++ // Paper start ++ IBlockData type = getType(blockposition); ++ if (!type.isDestroyable()) return false; ++ // Paper end + CraftBlockState blockstate = capturedBlockStates.get(blockposition); + if (blockstate == null) { + blockstate = CapturedBlockState.getTreeBlockState(this, blockposition, i); |