Use a proper teleport for teleporting to entities in different worlds. Validate that the target entity is valid and deny spectate requests from frozen players. Also, make sure the entity is spawned to the client before sending the camera packet. If the entity isn't spawned clientside when it receives the camera packet, then the client will not spectate the target entity.
43 lines
3.3 KiB
Diff
43 lines
3.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sun, 11 Nov 2018 21:01:09 +0000
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Subject: [PATCH] Don't allow digging into unloaded chunks
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diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
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index fe25754521d5cf7059130f14acaf61a6646c5360..ab94132590e3743e45ca345c3e30b811e5c54dfd 100644
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--- a/src/main/java/net/minecraft/server/PlayerConnection.java
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+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
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@@ -1273,6 +1273,11 @@ public class PlayerConnection implements PacketListenerPlayIn {
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case START_DESTROY_BLOCK:
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case ABORT_DESTROY_BLOCK:
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case STOP_DESTROY_BLOCK:
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+ // Paper start - Don't allow digging in unloaded chunks
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+ if (this.player.world.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) == null) {
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+ return;
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+ }
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+ // Paper end - Don't allow digging in unloaded chunks
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this.player.playerInteractManager.a(blockposition, packetplayinblockdig_enumplayerdigtype, packetplayinblockdig.c(), this.minecraftServer.getMaxBuildHeight());
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return;
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default:
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diff --git a/src/main/java/net/minecraft/server/PlayerInteractManager.java b/src/main/java/net/minecraft/server/PlayerInteractManager.java
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index e2e5c17c24c8f5e9807ca879b1025d13cb195226..17b7eddac4fadfd1cc3027fe6fbcd2bd5611fb84 100644
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--- a/src/main/java/net/minecraft/server/PlayerInteractManager.java
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+++ b/src/main/java/net/minecraft/server/PlayerInteractManager.java
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@@ -253,10 +253,12 @@ public class PlayerInteractManager {
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this.player.playerConnection.sendPacket(new PacketPlayOutBlockBreak(blockposition, this.world.getType(blockposition), packetplayinblockdig_enumplayerdigtype, true, "stopped destroying"));
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} else if (packetplayinblockdig_enumplayerdigtype == PacketPlayInBlockDig.EnumPlayerDigType.ABORT_DESTROY_BLOCK) {
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this.e = false;
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- if (!Objects.equals(this.g, blockposition)) {
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+ if (!Objects.equals(this.g, blockposition) && !BlockPosition.ZERO.equals(this.g)) { // Paper
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PlayerInteractManager.LOGGER.debug("Mismatch in destroy block pos: " + this.g + " " + blockposition); // CraftBukkit - SPIGOT-5457 sent by client when interact event cancelled
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- this.world.a(this.player.getId(), this.g, -1);
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- this.player.playerConnection.sendPacket(new PacketPlayOutBlockBreak(this.g, this.world.getType(this.g), packetplayinblockdig_enumplayerdigtype, true, "aborted mismatched destroying"));
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+ IBlockData type = this.world.getTypeIfLoaded(this.g); // Paper - don't load unloaded chunks for stale records here
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+ if (type != null) this.world.a(this.player.getId(), this.g, -1); // Paper
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+ if (type != null) this.player.playerConnection.sendPacket(new PacketPlayOutBlockBreak(this.g, type, packetplayinblockdig_enumplayerdigtype, true, "aborted mismatched destroying")); // Paper
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+ this.g = BlockPosition.ZERO; // Paper
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}
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this.world.a(this.player.getId(), blockposition, -1);
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