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Paper/Spigot-Server-Patches/0586-Fix-for-large-move-vectors-crashing-server.patch
Mariell Hoversholm 74f507f4e3 Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears 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:
e461dcfe #555: Item - add getters/setters for owner/thrower

CraftBukkit Changes:
055870c4 #758: Item - add getters/setters for owner/thrower
2020-10-14 10:44:15 -04:00

67 Zeilen
4.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
Date: Sun, 17 May 2020 23:47:33 -0700
Subject: [PATCH] Fix for large move vectors crashing server
Check movement distance also based on current position.
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 05b3a7478195037927cd1a902b603862d9747e61..4b0ff3e1acd91e0f28af9a900a4868c5a3b76caa 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -326,19 +326,24 @@ public class PlayerConnection implements PacketListenerPlayIn {
if (entity != this.player && entity.getRidingPassenger() == this.player && entity == this.r) {
WorldServer worldserver = this.player.getWorldServer();
- double d0 = entity.locX();
- double d1 = entity.locY();
- double d2 = entity.locZ();
- double d3 = packetplayinvehiclemove.getX();
- double d4 = packetplayinvehiclemove.getY();
- double d5 = packetplayinvehiclemove.getZ();
+ double d0 = entity.locX();double fromX = d0; // Paper - OBFHELPER
+ double d1 = entity.locY();double fromY = d1; // Paper - OBFHELPER
+ double d2 = entity.locZ();double fromZ = d2; // Paper - OBFHELPER
+ double d3 = packetplayinvehiclemove.getX();double toX = d3; // Paper - OBFHELPER
+ double d4 = packetplayinvehiclemove.getY();double toY = d4; // Paper - OBFHELPER
+ double d5 = packetplayinvehiclemove.getZ();double toZ = d5; // Paper - OBFHELPER
float f = packetplayinvehiclemove.getYaw();
float f1 = packetplayinvehiclemove.getPitch();
double d6 = d3 - this.s;
double d7 = d4 - this.t;
double d8 = d5 - this.u;
double d9 = entity.getMot().g();
- double d10 = d6 * d6 + d7 * d7 + d8 * d8;
+ // Paper start - fix large move vectors killing the server
+ double currDeltaX = toX - fromX;
+ double currDeltaY = toY - fromY;
+ double currDeltaZ = toZ - fromZ;
+ double d10 = Math.max(d6 * d6 + d7 * d7 + d8 * d8, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
+ // Paper end - fix large move vectors killing the server
// CraftBukkit start - handle custom speeds and skipped ticks
@@ -997,7 +1002,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
double d2 = this.player.locZ();
double d3 = this.player.locY();
double d4 = packetplayinflying.a(this.player.locX());double toX = d4; // Paper - OBFHELPER
- double d5 = packetplayinflying.b(this.player.locY());
+ double d5 = packetplayinflying.b(this.player.locY());double toY = d5; // Paper - OBFHELPER
double d6 = packetplayinflying.c(this.player.locZ());double toZ = d6; // Paper - OBFHELPER
float f = packetplayinflying.a(this.player.yaw);
float f1 = packetplayinflying.b(this.player.pitch);
@@ -1005,7 +1010,12 @@ public class PlayerConnection implements PacketListenerPlayIn {
double d8 = d5 - this.m;
double d9 = d6 - this.n;
double d10 = this.player.getMot().g();
- double d11 = d7 * d7 + d8 * d8 + d9 * d9;
+ // Paper start - fix large move vectors killing the server
+ double currDeltaX = toX - prevX;
+ double currDeltaY = toY - prevY;
+ double currDeltaZ = toZ - prevZ;
+ double d11 = Math.max(d7 * d7 + d8 * d8 + d9 * d9, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
+ // Paper end - fix large move vectors killing the server
if (this.player.isSleeping()) {
if (d11 > 1.0D) {