Paper/patches/server/0284-Don-t-allow-digging-into-unloaded-chunks.patch
Nassim Jahnke d385af0e01
Updated Upstream (Bukkit/CraftBukkit)
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:
0a4b84d6 SPIGOT-7003: Add missing PlayerAnimationType
830db7d5 SPIGOT-5984: Add non deprecated / magic value way to set pixel in MapCanvas
20caf8ff PR-754: Add DamageCause.SONIC_BOOM

CraftBukkit Changes:
576a03704 SPIGOT-7003: Add missing PlayerAnimationType
0dcc5fdd0 SPIGOT-5984: Add non deprecated / magic value way to set pixel in MapCanvas
d75aacb43 Update Netty version
3b34c6bea SPIGOT-7044: Modified RandomSourceWrapper to ensure random is not null before setting seed
4b60bfd18 PR-1059: Add DamageCause.SONIC_BOOM
2022-06-09 13:55:33 +02:00

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 53717a4a2bfd841346c00b5f854899e23661122c..3fadf6b46cc722ad81cf810c0761cf717e9f9b78 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)));
@@ -296,10 +303,12 @@ 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 a3da4721452597f7b2c3a505921df59f2ec7113d..290ff4431817e18433b04e4d9523485f131cbc72 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1598,6 +1598,12 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
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;