Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-15 19:10:09 +01:00
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.
316 Zeilen
19 KiB
Diff
316 Zeilen
19 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Mon, 9 Aug 2021 20:45:46 -0700
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Subject: [PATCH] Fire EntityChangeBlockEvent in more places
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Co-authored-by: ChristopheG <61288881+chrisgdt@users.noreply.github.com>
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diff --git a/src/main/java/net/minecraft/world/entity/LightningBolt.java b/src/main/java/net/minecraft/world/entity/LightningBolt.java
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index a298f511c8a7eb208a0dd63b24ec050848a31476..41a3ca4edf4fa662f2af13efd7b78b56e24aa4a7 100644
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--- a/src/main/java/net/minecraft/world/entity/LightningBolt.java
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+++ b/src/main/java/net/minecraft/world/entity/LightningBolt.java
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@@ -98,7 +98,7 @@ public class LightningBolt extends Entity {
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}
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this.powerLightningRod();
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- LightningBolt.clearCopperOnLightningStrike(this.level(), this.getStrikePosition());
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+ LightningBolt.clearCopperOnLightningStrike(this.level(), this.getStrikePosition(), this); // Paper - Call EntityChangeBlockEvent
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this.gameEvent(GameEvent.LIGHTNING_STRIKE);
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}
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}
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@@ -192,7 +192,7 @@ public class LightningBolt extends Entity {
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}
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}
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- private static void clearCopperOnLightningStrike(Level world, BlockPos pos) {
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+ private static void clearCopperOnLightningStrike(Level world, BlockPos pos, Entity lightning) { // Paper - Call EntityChangeBlockEvent
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BlockState iblockdata = world.getBlockState(pos);
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BlockPos blockposition1;
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BlockState iblockdata1;
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@@ -206,24 +206,29 @@ public class LightningBolt extends Entity {
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}
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if (iblockdata1.getBlock() instanceof WeatheringCopper) {
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- world.setBlockAndUpdate(blockposition1, WeatheringCopper.getFirst(world.getBlockState(blockposition1)));
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+ // Paper start - Call EntityChangeBlockEvent
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+ BlockState newBlock = WeatheringCopper.getFirst(world.getBlockState(blockposition1));
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+ if (CraftEventFactory.callEntityChangeBlockEvent(lightning, blockposition1, newBlock)) {
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+ world.setBlockAndUpdate(blockposition1, newBlock);
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+ }
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+ // Paper end - Call EntityChangeBlockEvent
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BlockPos.MutableBlockPos blockposition_mutableblockposition = pos.mutable();
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int i = world.random.nextInt(3) + 3;
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for (int j = 0; j < i; ++j) {
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int k = world.random.nextInt(8) + 1;
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- LightningBolt.randomWalkCleaningCopper(world, blockposition1, blockposition_mutableblockposition, k);
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+ LightningBolt.randomWalkCleaningCopper(world, blockposition1, blockposition_mutableblockposition, k, lightning); // Paper - transmit LightningBolt instance to call EntityChangeBlockEvent
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}
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}
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}
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- private static void randomWalkCleaningCopper(Level world, BlockPos pos, BlockPos.MutableBlockPos mutablePos, int count) {
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+ private static void randomWalkCleaningCopper(Level world, BlockPos pos, BlockPos.MutableBlockPos mutablePos, int count, Entity lightning) { // Paper - transmit LightningBolt instance to call EntityChangeBlockEvent
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mutablePos.set(pos);
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for (int j = 0; j < count; ++j) {
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- Optional<BlockPos> optional = LightningBolt.randomStepCleaningCopper(world, mutablePos);
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+ Optional<BlockPos> optional = LightningBolt.randomStepCleaningCopper(world, mutablePos, lightning); // Paper - transmit LightningBolt instance to call EntityChangeBlockEvent
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if (optional.isEmpty()) {
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break;
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@@ -234,7 +239,7 @@ public class LightningBolt extends Entity {
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}
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- private static Optional<BlockPos> randomStepCleaningCopper(Level world, BlockPos pos) {
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+ private static Optional<BlockPos> randomStepCleaningCopper(Level world, BlockPos pos, Entity lightning) { // Paper - transmit LightningBolt instance to call EntityChangeBlockEvent
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Iterator iterator = BlockPos.randomInCube(world.random, 10, pos, 1).iterator();
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BlockPos blockposition1;
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@@ -251,6 +256,7 @@ public class LightningBolt extends Entity {
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BlockPos blockposition1Final = blockposition1; // CraftBukkit - decompile error
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WeatheringCopper.getPrevious(iblockdata).ifPresent((iblockdata1) -> {
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+ if (CraftEventFactory.callEntityChangeBlockEvent(lightning, blockposition1Final, iblockdata1)) // Paper - call EntityChangeBlockEvent
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world.setBlockAndUpdate(blockposition1Final, iblockdata1); // CraftBukkit - decompile error
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});
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world.levelEvent(3002, blockposition1, -1);
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diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/TryLaySpawnOnWaterNearLand.java b/src/main/java/net/minecraft/world/entity/ai/behavior/TryLaySpawnOnWaterNearLand.java
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index 2c443b421e342ebfbdf941a431ba20560521920b..91b68ee3605afdb845405e455c869e48a7fc9aab 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/behavior/TryLaySpawnOnWaterNearLand.java
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+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/TryLaySpawnOnWaterNearLand.java
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@@ -27,6 +27,12 @@ public class TryLaySpawnOnWaterNearLand {
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BlockPos blockPos3 = blockPos2.above();
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if (world.getBlockState(blockPos3).isAir()) {
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BlockState blockState = frogSpawn.defaultBlockState();
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+ // Paper start
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(entity, blockPos3, blockState)) {
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+ isPregnant.erase(); // forgot pregnant memory
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+ return true;
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+ }
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+ // Paper end
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world.setBlock(blockPos3, blockState, 3);
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world.gameEvent(GameEvent.BLOCK_PLACE, blockPos3, GameEvent.Context.of(entity, blockState));
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world.playSound((Player)null, entity, SoundEvents.FROG_LAY_SPAWN, SoundSource.BLOCKS, 1.0F, 1.0F);
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diff --git a/src/main/java/net/minecraft/world/item/AxeItem.java b/src/main/java/net/minecraft/world/item/AxeItem.java
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index db507638a97b5a33df712c54daff35b21922c0dd..2e75fd06e9e379eb95ebfe55086ffc327706ab2f 100644
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--- a/src/main/java/net/minecraft/world/item/AxeItem.java
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+++ b/src/main/java/net/minecraft/world/item/AxeItem.java
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@@ -38,6 +38,11 @@ public class AxeItem extends DiggerItem {
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return InteractionResult.PASS;
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} else {
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ItemStack itemStack = context.getItemInHand();
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+ // Paper start - EntityChangeBlockEvent
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(player, blockPos, optional.get())) {
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+ return InteractionResult.PASS;
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+ }
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+ // Paper end
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if (player instanceof ServerPlayer) {
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CriteriaTriggers.ITEM_USED_ON_BLOCK.trigger((ServerPlayer)player, blockPos, itemStack);
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}
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diff --git a/src/main/java/net/minecraft/world/item/EnderEyeItem.java b/src/main/java/net/minecraft/world/item/EnderEyeItem.java
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index 1977e702f6af39ebf100c1f2f2edc2d1c4d003b0..cfcd1778b5ae66395400221879dde3575591b23d 100644
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--- a/src/main/java/net/minecraft/world/item/EnderEyeItem.java
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+++ b/src/main/java/net/minecraft/world/item/EnderEyeItem.java
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@@ -43,6 +43,11 @@ public class EnderEyeItem extends Item {
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return InteractionResult.SUCCESS;
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} else {
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BlockState iblockdata1 = (BlockState) iblockdata.setValue(EndPortalFrameBlock.HAS_EYE, true);
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+ // Paper start
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(context.getPlayer(), blockposition, iblockdata1)) {
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+ return InteractionResult.PASS;
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+ }
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+ // Paper end
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Block.pushEntitiesUp(iblockdata, iblockdata1, world, blockposition);
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world.setBlock(blockposition, iblockdata1, 2);
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diff --git a/src/main/java/net/minecraft/world/item/HoneycombItem.java b/src/main/java/net/minecraft/world/item/HoneycombItem.java
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index 78bdf7c0a058e84cafcd831c6d6f5123c0f168b0..e0cae3b6848af74fefc37a1e3183c501155c4710 100644
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--- a/src/main/java/net/minecraft/world/item/HoneycombItem.java
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+++ b/src/main/java/net/minecraft/world/item/HoneycombItem.java
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@@ -39,6 +39,14 @@ public class HoneycombItem extends Item implements SignApplicator {
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return getWaxed(blockState).map((state) -> {
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Player player = context.getPlayer();
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ItemStack itemStack = context.getItemInHand();
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+ // Paper start - EntityChangeBlockEvent
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(player, blockPos, state)) {
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+ if (!player.isCreative()) {
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+ player.containerMenu.sendAllDataToRemote();
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+ }
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+ return InteractionResult.PASS;
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+ }
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+ // Paper end
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if (player instanceof ServerPlayer) {
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CriteriaTriggers.ITEM_USED_ON_BLOCK.trigger((ServerPlayer)player, blockPos, itemStack);
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}
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diff --git a/src/main/java/net/minecraft/world/item/PotionItem.java b/src/main/java/net/minecraft/world/item/PotionItem.java
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index 5c62741e3a3854a7f674bfec49758f837f3bb9a0..b93ed2896ebeb8ec75eb3cfb717a740c97dd9622 100644
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--- a/src/main/java/net/minecraft/world/item/PotionItem.java
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+++ b/src/main/java/net/minecraft/world/item/PotionItem.java
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@@ -107,6 +107,12 @@ public class PotionItem extends Item {
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BlockState iblockdata = world.getBlockState(blockposition);
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if (context.getClickedFace() != Direction.DOWN && iblockdata.is(BlockTags.CONVERTABLE_TO_MUD) && PotionUtils.getPotion(itemstack) == Potions.WATER) {
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+ // Paper start
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(entityhuman, blockposition, Blocks.MUD.defaultBlockState())) {
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+ entityhuman.containerMenu.sendAllDataToRemote();
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+ return InteractionResult.PASS;
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+ }
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+ // Paper end
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world.playSound((Player) null, blockposition, SoundEvents.GENERIC_SPLASH, SoundSource.BLOCKS, 1.0F, 1.0F);
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entityhuman.setItemInHand(context.getHand(), ItemUtils.createFilledResult(itemstack, entityhuman, new ItemStack(Items.GLASS_BOTTLE)));
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entityhuman.awardStat(Stats.ITEM_USED.get(itemstack.getItem()));
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diff --git a/src/main/java/net/minecraft/world/item/ShovelItem.java b/src/main/java/net/minecraft/world/item/ShovelItem.java
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index 32995cb5efdad0bc34ecacacb78cccd21220ba8d..21212462e6b415e96536a27b2c009d1562f18946 100644
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--- a/src/main/java/net/minecraft/world/item/ShovelItem.java
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+++ b/src/main/java/net/minecraft/world/item/ShovelItem.java
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@@ -36,20 +36,29 @@ public class ShovelItem extends DiggerItem {
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Player player = context.getPlayer();
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BlockState blockState2 = FLATTENABLES.get(blockState.getBlock());
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BlockState blockState3 = null;
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+ Runnable afterAction = null; // Paper
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if (blockState2 != null && level.getBlockState(blockPos.above()).isAir()) {
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- level.playSound(player, blockPos, SoundEvents.SHOVEL_FLATTEN, SoundSource.BLOCKS, 1.0F, 1.0F);
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+ afterAction = () -> level.playSound(player, blockPos, SoundEvents.SHOVEL_FLATTEN, SoundSource.BLOCKS, 1.0F, 1.0F); // Paper
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blockState3 = blockState2;
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} else if (blockState.getBlock() instanceof CampfireBlock && blockState.getValue(CampfireBlock.LIT)) {
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+ afterAction = () -> { // Paper
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if (!level.isClientSide()) {
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level.levelEvent((Player)null, 1009, blockPos, 0);
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}
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CampfireBlock.dowse(context.getPlayer(), level, blockPos, blockState);
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+ }; // Paper
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blockState3 = blockState.setValue(CampfireBlock.LIT, Boolean.valueOf(false));
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}
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if (blockState3 != null) {
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if (!level.isClientSide) {
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+ // Paper start
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(context.getPlayer(), blockPos, blockState3)) {
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+ return InteractionResult.PASS;
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+ }
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+ afterAction.run();
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+ // Paper end
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level.setBlock(blockPos, blockState3, 11);
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level.gameEvent(GameEvent.BLOCK_CHANGE, blockPos, GameEvent.Context.of(player, blockState3));
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if (player != null) {
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diff --git a/src/main/java/net/minecraft/world/level/block/CakeBlock.java b/src/main/java/net/minecraft/world/level/block/CakeBlock.java
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index 49fe91a8eaeb2580c8ad0166e72540168af605f6..ca1ccedb5a551328ebfad907f39594b220efaefe 100644
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--- a/src/main/java/net/minecraft/world/level/block/CakeBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/CakeBlock.java
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@@ -62,6 +62,12 @@ public class CakeBlock extends Block {
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Block block = Block.byItem(item);
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if (block instanceof CandleBlock) {
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+ // Paper start - call change block event
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(player, pos, CandleCakeBlock.byCandle(block))) {
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+ player.containerMenu.sendAllDataToRemote(); // update inv because candle could decrease
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+ return InteractionResult.PASS;
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+ }
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+ // Paper end - call change block event
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if (!player.isCreative()) {
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itemstack.shrink(1);
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}
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@@ -91,6 +97,14 @@ public class CakeBlock extends Block {
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if (!player.canEat(false)) {
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return InteractionResult.PASS;
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} else {
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+ // Paper start - call change block event
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+ int i = state.getValue(CakeBlock.BITES);
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+ final BlockState newState = i < MAX_BITES ? state.setValue(CakeBlock.BITES, i + 1) : world.getFluidState(pos).createLegacyBlock();
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+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(player, pos, newState)) {
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+ ((net.minecraft.server.level.ServerPlayer) player).getBukkitEntity().sendHealthUpdate();
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+ return InteractionResult.PASS; // return a non-consume result to cake blocks don't drop their candles
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+ }
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+ // Paper end - call change block event
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player.awardStat(Stats.EAT_CAKE_SLICE);
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// CraftBukkit start
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// entityhuman.getFoodData().eat(2, 0.1F);
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@@ -104,7 +118,7 @@ public class CakeBlock extends Block {
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((net.minecraft.server.level.ServerPlayer) player).getBukkitEntity().sendHealthUpdate();
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// CraftBukkit end
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- int i = (Integer) state.getValue(CakeBlock.BITES);
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+ // Paper - move up
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world.gameEvent((Entity) player, GameEvent.EAT, pos);
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if (i < 6) {
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diff --git a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
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index 6cccdd1d19488275ff3fe90838cf1c31e844d517..413b307acaad5823b9e06f49fa2faf561f5f7b9a 100644
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--- a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
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@@ -238,6 +238,11 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
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if (i < 8 && ComposterBlock.COMPOSTABLES.containsKey(itemstack.getItem())) {
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if (i < 7 && !world.isClientSide) {
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BlockState iblockdata1 = ComposterBlock.addItem(player, state, world, pos, itemstack);
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+ // Paper start - handle cancelled events
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+ if (iblockdata1 == null) {
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+ return InteractionResult.PASS;
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+ }
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+ // Paper end
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world.levelEvent(1500, pos, state != iblockdata1 ? 1 : 0);
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player.awardStat(Stats.ITEM_USED.get(itemstack.getItem()));
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@@ -261,11 +266,16 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
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if (i < 7 && ComposterBlock.COMPOSTABLES.containsKey(stack.getItem())) {
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// CraftBukkit start
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double rand = world.getRandom().nextDouble();
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- BlockState iblockdata1 = ComposterBlock.addItem(user, state, DummyGeneratorAccess.INSTANCE, pos, stack, rand);
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- if (state == iblockdata1 || !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(user, pos, iblockdata1)) {
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+ BlockState iblockdata1 = null; // Paper
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+ if (false && (state == iblockdata1 || !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(user, pos, iblockdata1))) { // Paper - move event call into addItem
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return state;
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}
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iblockdata1 = ComposterBlock.addItem(user, state, world, pos, stack, rand);
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+ // Paper start - handle cancelled events
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+ if (iblockdata1 == null) {
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+ return state;
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+ }
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+ // Paper end
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// CraftBukkit end
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stack.shrink(1);
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@@ -306,11 +316,13 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
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return iblockdata1;
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}
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+ @Nullable // Paper
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static BlockState addItem(@Nullable Entity user, BlockState state, LevelAccessor world, BlockPos pos, ItemStack stack) {
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// CraftBukkit start
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return ComposterBlock.addItem(user, state, world, pos, stack, world.getRandom().nextDouble());
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}
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+ @Nullable // Paper - make it nullable
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static BlockState addItem(@Nullable Entity entity, BlockState iblockdata, LevelAccessor generatoraccess, BlockPos blockposition, ItemStack itemstack, double rand) {
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// CraftBukkit end
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int i = (Integer) iblockdata.getValue(ComposterBlock.LEVEL);
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@@ -321,6 +333,11 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
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} else {
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int j = i + 1;
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BlockState iblockdata1 = (BlockState) iblockdata.setValue(ComposterBlock.LEVEL, j);
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+ // Paper start - move the EntityChangeBlockEvent here to avoid conflict later for the compost events
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+ if (entity != null && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(entity, blockposition, iblockdata1)) {
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+ return null;
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+ }
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+ // Paper end
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generatoraccess.setBlock(blockposition, iblockdata1, 3);
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generatoraccess.gameEvent(GameEvent.BLOCK_CHANGE, blockposition, GameEvent.Context.of(entity, iblockdata1));
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java
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index 67c9009b735429e887e706baf50a6023d572a46c..7956002e2d4d583c27e277562312d27ea6871557 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java
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@@ -120,7 +120,7 @@ public class DummyGeneratorAccess implements WorldGenLevel {
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@Override
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public void gameEvent(GameEvent event, Vec3 emitterPos, GameEvent.Context emitter) {
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- // Used by BlockComposter
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+ // Used by ComposterBlock
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}
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@Override
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