Paper/patches/server/0281-Don-t-allow-digging-into-unloaded-chunks.patch
Jake Potrebic d8847bc1f3
Updated Upstream (Bukkit/CraftBukkit) (#9922)
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:
fde5602a PR-927: Add PlayerRecipeBookSettingsChangeEvent
949ff217 PR-930: Add methods to get/set evoker fang attack delay
f6f7c79d SPIGOT-7514, PR-929: Add "Enchantment Roll" API to enchant items according to Minecraft mechanics
d40e22da PR-712: Add API to get full result of crafting items

CraftBukkit Changes:
c8feb0629 PR-1291: Improve precondition message in Entity#playEffect
482c56a00 PR-1285: Add PlayerRecipeBookSettingsChangeEvent
cdf798800 PR-1290: Add methods to get/set evoker fang attack delay
2c1b5f78f SPIGOT-7514, PR-1289: Add "Enchantment Roll" API to enchant items according to Minecraft mechanics
6aa644ae9 PR-992: Add API to get full result of crafting items
ffb1319bc PR-1287: Fix scoreboards not updating in Player#setStatistic
2023-11-11 12:25:45 -08:00

78 lines
5.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 11 Nov 2018 21:01:09 +0000
Subject: [PATCH] Don't allow digging into unloaded chunks
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 3273448ebb2db3fa8eb3f45262f5497dbb31a5ba..58277908737a1f3da89e5df827e108e2381396ff 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -119,8 +119,8 @@ public class ServerPlayerGameMode {
BlockState iblockdata;
if (this.hasDelayedDestroy) {
- iblockdata = this.level.getBlockState(this.delayedDestroyPos);
- if (iblockdata.isAir()) {
+ iblockdata = this.level.getBlockStateIfLoaded(this.delayedDestroyPos); // Paper
+ if (iblockdata == null || iblockdata.isAir()) { // Paper
this.hasDelayedDestroy = false;
} else {
float f = this.incrementDestroyProgress(iblockdata, this.delayedDestroyPos, this.delayedTickStart);
@@ -131,7 +131,13 @@ public class ServerPlayerGameMode {
}
}
} else if (this.isDestroyingBlock) {
- iblockdata = this.level.getBlockState(this.destroyPos);
+ // Paper start - don't want to do same logic as above, return instead
+ iblockdata = this.level.getBlockStateIfLoaded(this.destroyPos);
+ if (iblockdata == null) {
+ this.isDestroyingBlock = false;
+ return;
+ }
+ // Paper end
if (iblockdata.isAir()) {
this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1);
this.lastSentState = -1;
@@ -160,6 +166,7 @@ public class ServerPlayerGameMode {
public void handleBlockBreakAction(BlockPos pos, ServerboundPlayerActionPacket.Action action, Direction direction, int worldHeight, int sequence) {
if (this.player.getEyePosition().distanceToSqr(Vec3.atCenterOf(pos)) > ServerGamePacketListenerImpl.MAX_INTERACTION_DISTANCE) {
+ if (true) return; // Paper - Don't notify if unreasonably far away
this.debugLogging(pos, false, sequence, "too far");
} else if (pos.getY() >= worldHeight) {
this.player.connection.send(new ClientboundBlockUpdatePacket(pos, this.level.getBlockState(pos)));
@@ -304,10 +311,12 @@ public class ServerPlayerGameMode {
this.debugLogging(pos, true, sequence, "stopped destroying");
} else if (action == ServerboundPlayerActionPacket.Action.ABORT_DESTROY_BLOCK) {
this.isDestroyingBlock = false;
- if (!Objects.equals(this.destroyPos, pos)) {
+ if (!Objects.equals(this.destroyPos, pos) && !BlockPos.ZERO.equals(this.destroyPos)) { // Paper
ServerPlayerGameMode.LOGGER.debug("Mismatch in destroy block pos: {} {}", this.destroyPos, pos); // CraftBukkit - SPIGOT-5457 sent by client when interact event cancelled
- this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1);
- this.debugLogging(pos, true, sequence, "aborted mismatched destroying");
+ BlockState type = this.level.getBlockStateIfLoaded(this.destroyPos); // Paper - don't load unloaded chunks for stale records here
+ if (type != null) this.level.destroyBlockProgress(this.player.getId(), this.destroyPos, -1);
+ if (type != null) this.debugLogging(pos, true, sequence, "aborted mismatched destroying");
+ this.destroyPos = BlockPos.ZERO; // Paper
}
this.level.destroyBlockProgress(this.player.getId(), pos, -1);
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 6b2a3d3af54af0699a2331cfa6b165d079e38caf..52b386b608fab59fe930885c0951f9674a257d69 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1562,6 +1562,12 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
case START_DESTROY_BLOCK:
case ABORT_DESTROY_BLOCK:
case STOP_DESTROY_BLOCK:
+ // Paper start - Don't allow digging in unloaded chunks
+ if (this.player.level().getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) == null) {
+ this.player.connection.ackBlockChangesUpTo(packet.getSequence());
+ return;
+ }
+ // Paper end - Don't allow digging in unloaded chunks
this.player.gameMode.handleBlockBreakAction(blockposition, packetplayinblockdig_enumplayerdigtype, packet.getDirection(), this.player.level().getMaxBuildHeight(), packet.getSequence());
this.player.connection.ackBlockChangesUpTo(packet.getSequence());
return;