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PaperMC/Spigot-Server-Patches/0061-Add-velocity-warnings.patch

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From 836675371c732b2c7d7977874436f4f5b20dece0 Mon Sep 17 00:00:00 2001
Paper 1.9
2016-03-01 00:09:49 +01:00
From: Joseph Hirschfeld <joe@ibj.io>
Date: Thu, 3 Mar 2016 02:48:12 -0600
Subject: [PATCH] Add velocity warnings
Compromise on warning of excessive velocity sets We have long been receiving feedback about our warning messages when excessive velocities are set on entities. We have, for the most part, ignored much of this feedback because these warnings can be vital in identifying the cause of a watchdog crash. These crashes would otherwise be more difficult to identify without this information. However, in many cases these warnings are unnecessarily verbose as the server handles these excessive sets itself without user intervention. As a compromise, we will only warn the user as part of a watchdog crash log, and we will only include the most recent occurrence. This commit represents a first effort on this front. It may need to be tweaked later to provide more relevant information, such as the time it occurred, and/or not printing the warning at all if the occurrence was a certain time period ago.
2017-01-08 23:43:08 +01:00
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 03bc0171b..c61752bc3 100644
Compromise on warning of excessive velocity sets We have long been receiving feedback about our warning messages when excessive velocities are set on entities. We have, for the most part, ignored much of this feedback because these warnings can be vital in identifying the cause of a watchdog crash. These crashes would otherwise be more difficult to identify without this information. However, in many cases these warnings are unnecessarily verbose as the server handles these excessive sets itself without user intervention. As a compromise, we will only warn the user as part of a watchdog crash log, and we will only include the most recent occurrence. This commit represents a first effort on this front. It may need to be tweaked later to provide more relevant information, such as the time it occurred, and/or not printing the warning at all if the occurrence was a certain time period ago.
2017-01-08 23:43:08 +01:00
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -173,6 +173,7 @@ public final class CraftServer implements Server {
private final UUID invalidUserUUID = UUID.nameUUIDFromBytes("InvalidUsername".getBytes(Charsets.UTF_8));
private final List<CraftPlayer> playerView;
public int reloadCount;
+ public static Exception excessiveVelEx; // Paper - Velocity warnings
private final class BooleanWrapper {
private boolean value = true;
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
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index 6497905b9..463289199 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
Compromise on warning of excessive velocity sets We have long been receiving feedback about our warning messages when excessive velocities are set on entities. We have, for the most part, ignored much of this feedback because these warnings can be vital in identifying the cause of a watchdog crash. These crashes would otherwise be more difficult to identify without this information. However, in many cases these warnings are unnecessarily verbose as the server handles these excessive sets itself without user intervention. As a compromise, we will only warn the user as part of a watchdog crash log, and we will only include the most recent occurrence. This commit represents a first effort on this front. It may need to be tweaked later to provide more relevant information, such as the time it occurred, and/or not printing the warning at all if the occurrence was a certain time period ago.
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@@ -229,6 +229,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
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}
public void setVelocity(Vector vel) {
+ // Paper start - Warn server owners when plugins try to set super high velocities
Don't check velocities on Projectiles Closes GH-217
2016-04-17 20:32:19 +02:00
+ if (!(this instanceof org.bukkit.entity.Projectile) && (vel.getX() > 4 || vel.getX() < -4 || vel.getY() > 4 || vel.getY() < -4 || vel.getZ() > 4 || vel.getZ() < -4)) {
Compromise on warning of excessive velocity sets We have long been receiving feedback about our warning messages when excessive velocities are set on entities. We have, for the most part, ignored much of this feedback because these warnings can be vital in identifying the cause of a watchdog crash. These crashes would otherwise be more difficult to identify without this information. However, in many cases these warnings are unnecessarily verbose as the server handles these excessive sets itself without user intervention. As a compromise, we will only warn the user as part of a watchdog crash log, and we will only include the most recent occurrence. This commit represents a first effort on this front. It may need to be tweaked later to provide more relevant information, such as the time it occurred, and/or not printing the warning at all if the occurrence was a certain time period ago.
2017-01-08 23:43:08 +01:00
+ CraftServer.excessiveVelEx = new Exception("Excessive velocity set detected: tried to set velocity of entity #" + getEntityId() + " to (" + vel.getX() + "," + vel.getY() + "," + vel.getZ() + ").");
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+ }
+ // Paper end
entity.motX = vel.getX();
entity.motY = vel.getY();
entity.motZ = vel.getZ();
Compromise on warning of excessive velocity sets We have long been receiving feedback about our warning messages when excessive velocities are set on entities. We have, for the most part, ignored much of this feedback because these warnings can be vital in identifying the cause of a watchdog crash. These crashes would otherwise be more difficult to identify without this information. However, in many cases these warnings are unnecessarily verbose as the server handles these excessive sets itself without user intervention. As a compromise, we will only warn the user as part of a watchdog crash log, and we will only include the most recent occurrence. This commit represents a first effort on this front. It may need to be tweaked later to provide more relevant information, such as the time it occurred, and/or not printing the warning at all if the occurrence was a certain time period ago.
2017-01-08 23:43:08 +01:00
diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
Switch to a bStats based Metrics system
2017-03-25 06:22:02 +01:00
index 3ed983cc0..6384d50e7 100644
Compromise on warning of excessive velocity sets We have long been receiving feedback about our warning messages when excessive velocities are set on entities. We have, for the most part, ignored much of this feedback because these warnings can be vital in identifying the cause of a watchdog crash. These crashes would otherwise be more difficult to identify without this information. However, in many cases these warnings are unnecessarily verbose as the server handles these excessive sets itself without user intervention. As a compromise, we will only warn the user as part of a watchdog crash log, and we will only include the most recent occurrence. This commit represents a first effort on this front. It may need to be tweaked later to provide more relevant information, such as the time it occurred, and/or not printing the warning at all if the occurrence was a certain time period ago.
2017-01-08 23:43:08 +01:00
--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
@@ -66,7 +66,19 @@ public class WatchdogThread extends Thread
log.log( Level.SEVERE, "During the run of the server, a physics stackoverflow was supressed" );
log.log( Level.SEVERE, "near " + net.minecraft.server.World.blockLocation);
}
- //
+ // Paper start - Warn in watchdog if an excessive velocity was ever set
+ if ( org.bukkit.craftbukkit.CraftServer.excessiveVelEx != null )
+ {
+ log.log( Level.SEVERE, "------------------------------" );
+ log.log( Level.SEVERE, "During the run of the server, a plugin set an excessive velocity on an entity" );
+ log.log( Level.SEVERE, "This may be the cause of the issue, or it may be entirely unrelated" );
+ log.log( Level.SEVERE, org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getMessage());
+ for ( StackTraceElement stack : org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace() )
+ {
+ log.log( Level.SEVERE, "\t\t" + stack );
+ }
+ }
+ // Paper end
log.log( Level.SEVERE, "------------------------------" );
log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" );
dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().primaryThread.getId(), Integer.MAX_VALUE ), log );
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2.12.0.windows.1
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