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Tie PlayerList#moveToWorld safety to existing config 

Also renames patch file to better express what it's doing.

It is presumed that those using this config option intend for
suffocation checks to be disabled in all instances. In doing so, they
inherently assume the advantages and issues associated with removing
said safety check.

If the community expresses a desire for more specific options regarding
the handling of this safety feature, we can investigate providing them.

Fixes GH-1149
This commit is contained in:
Zach Brown 2018-06-18 16:27:33 -05:00
parent b02d49beaa
commit 384059607e
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1 changed files with 26 additions and 8 deletions
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34
Spigot-Server-Patches/0059-Fix-inter-world-teleportation-glitches.patch → Spigot-Server-Patches/0059-Configurable-inter-world-teleportation-safety.patch
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@ -1,17 +1,22 @@
From fcbd68f84a9637e4bb730429bd02ea4c4387c655 Mon Sep 17 00:00:00 2001
From 52a843bdcf3007d3a162688c19e81226dd77bf9e Mon Sep 17 00:00:00 2001
From: Sudzzy <originmc@outlook.com>
Date: Thu, 3 Mar 2016 02:50:31 -0600
Subject: [PATCH] Fix inter-world teleportation glitches
Subject: [PATCH] Configurable inter-world teleportation safety
People are able to abuse the way Bukkit handles teleportation across worlds since it provides a built in teleportation safety check.
People are able to abuse the way Bukkit handles teleportation across worlds since it provides a built in teleportation
safety check.
To abuse the safety check, players are required to get into a location deemed unsafe by Bukkit e.g. be within a chest or door block. While they are in this block, they accept a teleport request from a player within a different world. Once the player teleports, Minecraft will recursively search upwards for a safe location, this could eventually land within a player's skybase.
To abuse the safety check, players are required to get into a location deemed unsafe by Bukkit e.g. be within a chest
or door block. While they are in this block, they accept a teleport request from a player within a different world. Once
the player teleports, Minecraft will recursively search upwards for a safe location, this could eventually land within a
player's skybase.
Example setup to perform the glitch: http://puu.sh/ng3PC/cf072dcbdb.png
The wanted destination was on top of the emerald block however the player ended on top of the diamond block. This only is the case if the player is teleporting between worlds.
The wanted destination was on top of the emerald block however the player ended on top of the diamond block.
This only is the case if the player is teleporting between worlds.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 38ccabc0..b241c038 100644
index 38ccabc0d..b241c0380 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -237,4 +237,9 @@ public class PaperWorldConfig {
@ -24,8 +29,21 @@ index 38ccabc0..b241c038 100644
+ disableTeleportationSuffocationCheck = getBoolean("disable-teleportation-suffocation-check", false);
+ }
}
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index 536534d2e..bf7aaebd6 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -799,7 +799,7 @@ public abstract class PlayerList {
exitWorld.getTravelAgent().adjustExit(entityplayer, exit, velocity);
entityplayer.worldChangeInvuln = true; // CraftBukkit - Set teleport invulnerability only if player changing worlds
- this.moveToWorld(entityplayer, exitWorld.dimension, true, exit, true); // SPIGOT-3864
+ this.moveToWorld(entityplayer, exitWorld.dimension, true, exit, !exitWorld.paperConfig.disableTeleportationSuffocationCheck); // SPIGOT-3864 // Paper GH-1149 - Tie suffocation check to config option
if (entityplayer.motX != velocity.getX() || entityplayer.motY != velocity.getY() || entityplayer.motZ != velocity.getZ()) {
entityplayer.getBukkitEntity().setVelocity(velocity);
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index c14100ac..6a43f567 100644
index c14100ac6..6a43f5674 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -614,7 +614,8 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
@ -39,5 +57,5 @@ index c14100ac..6a43f567 100644
return true;
}
--
2.17.0
2.17.1