From 836675371c732b2c7d7977874436f4f5b20dece0 Mon Sep 17 00:00:00 2001 From: Joseph Hirschfeld Date: Thu, 3 Mar 2016 02:48:12 -0600 Subject: [PATCH] Add velocity warnings diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java index 03bc0171b..c61752bc3 100644 --- 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 playerView; public int reloadCount; + public static Exception excessiveVelEx; // Paper - Velocity warnings private final class BooleanWrapper { private boolean value = true; diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java index 6497905b9..463289199 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java @@ -229,6 +229,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity { } public void setVelocity(Vector vel) { + // Paper start - Warn server owners when plugins try to set super high velocities + 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)) { + CraftServer.excessiveVelEx = new Exception("Excessive velocity set detected: tried to set velocity of entity #" + getEntityId() + " to (" + vel.getX() + "," + vel.getY() + "," + vel.getZ() + ")."); + } + // Paper end entity.motX = vel.getX(); entity.motY = vel.getY(); entity.motZ = vel.getZ(); diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java index 3ed983cc0..6384d50e7 100644 --- 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 ); -- 2.12.0.windows.1