Paper/Spigot-Server-Patches/0055-Configurable-inter-world-teleportation-safety.patch

62 lines
3.5 KiB
Diff
Raw Normal View History

From 4aa958cd75e6b558fc25887fb204d69eb97fd2a8 Mon Sep 17 00:00:00 2001
From: Sudzzy <originmc@outlook.com>
2016-03-01 00:09:49 +01:00
Date: Thu, 3 Mar 2016 02:50:31 -0600
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.
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.
2016-03-01 00:09:49 +01:00
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 9db394d4..50837d76 100644
2016-03-01 00:09:49 +01:00
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -190,4 +190,9 @@ public class PaperWorldConfig {
2016-03-01 00:09:49 +01:00
private void portalSearchRadius() {
portalSearchRadius = getInt("portal-search-radius", 128);
}
+
+ public boolean disableTeleportationSuffocationCheck;
+ private void disableTeleportationSuffocationCheck() {
+ 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 4a843d52..7dfb2bee 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -793,7 +793,7 @@ 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 9e51645c..15a99220 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
2018-09-01 12:09:13 +02:00
@@ -714,7 +714,8 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
if (fromWorld == toWorld) {
entity.playerConnection.teleport(to);
} else {
- server.getHandle().moveToWorld(entity, toWorld.dimension, true, to, true);
2016-03-01 00:09:49 +01:00
+ // Paper - Configurable suffocation check
+ server.getHandle().moveToWorld(entity, toWorld.dimension, true, to, !toWorld.paperConfig.disableTeleportationSuffocationCheck);
}
return true;
}
--
2.19.0