49 Zeilen
2.8 KiB
Diff
49 Zeilen
2.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Thu, 2 Apr 2020 01:42:39 -0400
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Subject: [PATCH] Prevent Double PlayerChunkMap adds crashing server
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Suspected case would be around the technique used in .stopRiding
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Stack will identify any causer of this and warn instead of crashing.
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index d4240b0405520cb292b4cbd4f70ebcd2edc30bbf..acd7318af28022b196d7397601d3511d7f199821 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -1507,6 +1507,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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public void addEntity(Entity entity) {
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org.spigotmc.AsyncCatcher.catchOp("entity track"); // Spigot
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+ // Paper start - ignore and warn about illegal addEntity calls instead of crashing server
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+ if (!entity.valid || entity.level != this.level || this.entityMap.containsKey(entity.getId())) {
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+ new Throwable("[ERROR] Illegal PlayerChunkMap::addEntity for world " + this.level.getWorld().getName()
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+ + ": " + entity + (this.entityMap.containsKey(entity.getId()) ? " ALREADY CONTAINED (This would have crashed your server)" : ""))
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+ .printStackTrace();
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+ return;
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+ }
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+ // Paper end
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if (!(entity instanceof EnderDragonPart)) {
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EntityType<?> entitytypes = entity.getType();
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int i = entitytypes.clientTrackingRange() * 16;
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index e687eba2029b114a3272037c7be11160076afbcf..d2acfa3de9f5ac380b6bde1d4e8406db9e182371 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -2106,7 +2106,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
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public void onTrackingStart(Entity entity) {
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org.spigotmc.AsyncCatcher.catchOp("entity register"); // Spigot
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- ServerLevel.this.getChunkSource().addEntity(entity);
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+ // ServerLevel.this.getChunkSource().addEntity(entity); // Paper - moved down below valid=true
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if (entity instanceof ServerPlayer) {
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ServerLevel.this.players.add((ServerPlayer) entity);
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ServerLevel.this.updateSleepingPlayerList();
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@@ -2128,6 +2128,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
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}
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entity.valid = true; // CraftBukkit
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+ ServerLevel.this.getChunkSource().addEntity(entity);
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}
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public void onTrackingEnd(Entity entity) {
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