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Paper-Old/patches/server/0419-Fix-for-large-move-vectors-crashing-server.patch
Bjarne Koll 77a5779e24
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11197)
Upstream has released updates that appear 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:
2ec53f49 PR-1050: Fix empty result check for Complex Recipes
10671012 PR-1044: Add CrafterCraftEvent
4d87ffe0 Use correct method in JavaDoc
ae5e5817 SPIGOT-7850: Add API for Bogged shear state
46b6d445 SPIGOT-7837: Support data pack banner patterns
d5d0cefc Fix JavaDoc error
b3c2b83d PR-1036: Add API for InventoryView derivatives
1fe2c75a SPIGOT-7809: Add ShieldMeta

CraftBukkit Changes:
8ee6fd1b8 SPIGOT-7857: Improve ItemMeta block data deserialization
8f26c30c6 SPIGOT-7857: Fix spurious internal NBT tag when deserializing BlockStateMeta
759061b93 SPIGOT-7855: Fire does not spread or burn blocks
00fc9fb64 SPIGOT-7853: AnvilInventory#getRepairCost() always returns 0
7501e2e04 PR-1450: Add CrafterCraftEvent
8c51673e7 SPIGOT-5731: PortalCreateEvent#getEntity returns null for nether portals ignited by flint and steel
d53d0d0b1 PR-1456: Fix inverted logic in CraftCrafterView#setSlotDisabled
682a678c8 SPIGOT-7850: Add API for Bogged shear state
fccf5243a SPIGOT-7837: Support data pack banner patterns
9c3bd4390 PR-1431: Add API for InventoryView derivatives
0cc6acbc4 SPIGOT-7849: Fix FoodComponent serialize with "using-converts-to" using null
2c5474952 Don't rely on tags for CraftItemMetas
20d107e46 SPIGOT-7846: Fix ItemMeta for hanging signs
76f59e315 Remove redundant clone in Dropper InventoryMoveItemEvent
e61a53d25 SPIGOT-7817: Call InventoryMoveItemEvent for Crafters
894682e2d SPIGOT-7839: Remove redundant Java version checks
2c12b2187 SPIGOT-7809: Add ShieldMeta and fix setting shield base colours

Spigot Changes:
fb8fb722 Rebuild patches
34bd42b7 SPIGOT-7835: Fix issue with custom hopper settings
2024-08-09 22:05:50 +02:00

87 Zeilen
6.0 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index d97b1040ecec1d30fdd1bf309a8215955642fb93..7a743d81c387179218c519a7e27702605069caeb 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -492,9 +492,9 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
float prevYaw = this.player.getYRot();
float prevPitch = this.player.getXRot();
// CraftBukkit end
- double d0 = entity.getX();
- double d1 = entity.getY();
- double d2 = entity.getZ();
+ double d0 = entity.getX();final double fromX = d0; // Paper - OBFHELPER
+ double d1 = entity.getY();final double fromY = d1; // Paper - OBFHELPER
+ double d2 = entity.getZ();final double fromZ = d2; // Paper - OBFHELPER
double d3 = ServerGamePacketListenerImpl.clampHorizontal(packet.getX()); final double toX = d3; // Paper - OBFHELPER
double d4 = ServerGamePacketListenerImpl.clampVertical(packet.getY()); final double toY = d4; // Paper - OBFHELPER
double d5 = ServerGamePacketListenerImpl.clampHorizontal(packet.getZ()); final double toZ = d5; // Paper - OBFHELPER
@@ -504,7 +504,16 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
double d7 = d4 - this.vehicleFirstGoodY;
double d8 = d5 - this.vehicleFirstGoodZ;
double d9 = entity.getDeltaMovement().lengthSqr();
- 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);
+ double otherFieldX = d3 - this.vehicleLastGoodX;
+ double otherFieldY = d4 - this.vehicleLastGoodY - 1.0E-6D;
+ double otherFieldZ = d5 - this.vehicleLastGoodZ;
+ d10 = Math.max(d10, (otherFieldX * otherFieldX + otherFieldY * otherFieldY + otherFieldZ * otherFieldZ) - 1);
+ // Paper end - fix large move vectors killing the server
// CraftBukkit start - handle custom speeds and skipped ticks
this.allowedPlayerTicks += (System.currentTimeMillis() / 50) - this.lastTick;
@@ -550,9 +559,9 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
boolean flag = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
- d6 = d3 - this.vehicleLastGoodX;
- d7 = d4 - this.vehicleLastGoodY - 1.0E-6D;
- d8 = d5 - this.vehicleLastGoodZ;
+ d6 = d3 - this.vehicleLastGoodX; // Paper - diff on change, used for checking large move vectors above
+ d7 = d4 - this.vehicleLastGoodY - 1.0E-6D; // Paper - diff on change, used for checking large move vectors above
+ d8 = d5 - this.vehicleLastGoodZ; // Paper - diff on change, used for checking large move vectors above
boolean flag1 = entity.verticalCollisionBelow;
if (entity instanceof LivingEntity) {
@@ -1254,7 +1263,16 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
double d7 = d1 - this.firstGoodY;
double d8 = d2 - this.firstGoodZ;
double d9 = this.player.getDeltaMovement().lengthSqr();
- double d10 = d6 * d6 + d7 * d7 + d8 * d8;
+ // Paper start - fix large move vectors killing the server
+ double currDeltaX = toX - prevX;
+ double currDeltaY = toY - prevY;
+ double currDeltaZ = toZ - prevZ;
+ double d10 = Math.max(d6 * d6 + d7 * d7 + d8 * d8, (currDeltaX * currDeltaX + currDeltaY * currDeltaY + currDeltaZ * currDeltaZ) - 1);
+ double otherFieldX = d0 - this.lastGoodX;
+ double otherFieldY = d1 - this.lastGoodY;
+ double otherFieldZ = d2 - this.lastGoodZ;
+ d10 = Math.max(d10, (otherFieldX * otherFieldX + otherFieldY * otherFieldY + otherFieldZ * otherFieldZ) - 1);
+ // Paper end - fix large move vectors killing the server
if (this.player.isSleeping()) {
if (d10 > 1.0D) {
@@ -1310,9 +1328,9 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
AABB axisalignedbb = this.player.getBoundingBox();
- d6 = d0 - this.lastGoodX;
- d7 = d1 - this.lastGoodY;
- d8 = d2 - this.lastGoodZ;
+ d6 = d0 - this.lastGoodX; // Paper - diff on change, used for checking large move vectors above
+ d7 = d1 - this.lastGoodY; // Paper - diff on change, used for checking large move vectors above
+ d8 = d2 - this.lastGoodZ; // Paper - diff on change, used for checking large move vectors above
boolean flag1 = d7 > 0.0D;
if (this.player.onGround() && !packet.isOnGround() && flag1) {