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https://github.com/PaperMC/Paper.git
synchronisiert 2024-11-15 20:40:07 +01:00
c3640b1dc0
* She compiles! Also readded the armorstand ticking patch, thanks cat * Update mob goal api * Misc fixes to make it run drop per playing mob spawns for now
32 Zeilen
1.6 KiB
Diff
32 Zeilen
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Fri, 12 Jun 2020 16:51:39 -0700
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Subject: [PATCH] Prevent position desync in playerconnection causing tp
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exploit
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Caused the server to revert to the player's overworld coordinates
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after teleporting into the end.
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Sidenote: The underlying issue is that the move call can teleport
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entities and do other things like kill the entity. In the future,
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to fix all exploits derieved from this usually unexpected
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behaviour, we need to move all of this dangerous logic outside
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of the move call and into an appropriate place in the tick method.
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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 66dd1b3bfeebab8dd0f4e823dd0daea903343413..0cb2efb10694c81786a95301f3da86121ea27b17 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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@@ -1097,6 +1097,11 @@ public class PlayerConnection implements PacketListenerPlayIn {
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}
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this.player.move(EnumMoveType.PLAYER, new Vec3D(d7, d8, d9));
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+ // Paper start - prevent position desync
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+ if (this.teleportPos != null) {
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+ return; // ... thanks Mojang for letting move calls teleport across dimensions.
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+ }
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+ // Paper end - prevent position desync
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double d12 = d8;
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d7 = d4 - this.player.locX();
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