118 lines
5.3 KiB
Diff
118 lines
5.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Minecrell <minecrell@minecrell.net>
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Date: Thu, 21 Sep 2017 19:41:20 +0200
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Subject: [PATCH] Add workaround for plugins modifying the parent of the plugin
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logger
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Essentials uses a custom logger name ("Essentials") instead of the
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plugin logger. Log messages are redirected to the plugin logger by
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setting the parent of the "Essentials" logger to the plugin logger.
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With our changes, the plugin logger is now also called "Essentials",
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resulting in an infinite loop. Make sure plugins can't change the
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parent of the plugin logger to avoid this.
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diff --git a/src/main/java/com/destroystokyo/paper/utils/PaperPluginLogger.java b/src/main/java/com/destroystokyo/paper/utils/PaperPluginLogger.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..76f2cb9cd99cad2a9484eab2becd8c36f1dd91b3
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/utils/PaperPluginLogger.java
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@@ -0,0 +1,41 @@
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+package com.destroystokyo.paper.utils;
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+
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+import org.bukkit.plugin.PluginDescriptionFile;
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+
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+import java.util.logging.Level;
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+import java.util.logging.LogManager;
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+import java.util.logging.Logger;
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+import org.jetbrains.annotations.NotNull;
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+
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+/**
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+ * Prevents plugins (e.g. Essentials) from changing the parent of the plugin logger.
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+ */
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+public class PaperPluginLogger extends Logger {
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+
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+ @NotNull
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+ public static Logger getLogger(@NotNull PluginDescriptionFile description) {
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+ Logger logger = new PaperPluginLogger(description);
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+ if (!LogManager.getLogManager().addLogger(logger)) {
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+ // Disable this if it's going to happen across reloads anyways...
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+ //logger.log(Level.WARNING, "Could not insert plugin logger - one was already found: {}", LogManager.getLogManager().getLogger(this.getName()));
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+ logger = LogManager.getLogManager().getLogger(description.getPrefix() != null ? description.getPrefix() : description.getName());
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+ }
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+
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+ return logger;
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+ }
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+
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+ private PaperPluginLogger(@NotNull PluginDescriptionFile description) {
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+ super(description.getPrefix() != null ? description.getPrefix() : description.getName(), null);
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+ }
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+
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+ @Override
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+ public void setParent(@NotNull Logger parent) {
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+ if (getParent() != null) {
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+ warning("Ignoring attempt to change parent of plugin logger");
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+ } else {
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+ this.log(Level.FINE, "Setting plugin logger parent to {0}", parent);
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+ super.setParent(parent);
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+ }
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+ }
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+
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+}
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diff --git a/src/main/java/org/bukkit/plugin/java/JavaPlugin.java b/src/main/java/org/bukkit/plugin/java/JavaPlugin.java
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index f99d60ae4003f953b5680a997e9e43e63c035b0c..c943bd801b54519ba6cf5d45aec593d7b7438f99 100644
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--- a/src/main/java/org/bukkit/plugin/java/JavaPlugin.java
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+++ b/src/main/java/org/bukkit/plugin/java/JavaPlugin.java
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@@ -43,7 +43,7 @@ public abstract class JavaPlugin extends PluginBase {
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private boolean naggable = true;
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private FileConfiguration newConfig = null;
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private File configFile = null;
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- private Logger logger = null; // Paper - PluginLogger -> Logger
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+ Logger logger = null; // Paper - PluginLogger -> Logger, package-private
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public JavaPlugin() {
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final ClassLoader classLoader = this.getClass().getClassLoader();
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@@ -277,8 +277,11 @@ public abstract class JavaPlugin extends PluginBase {
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this.dataFolder = dataFolder;
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this.classLoader = classLoader;
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this.configFile = new File(dataFolder, "config.yml");
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- // Paper - Handle plugin prefix in implementation
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- this.logger = Logger.getLogger(description.getPrefix() != null ? description.getPrefix() : description.getName());
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+ // Paper start
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+ if (this.logger == null) {
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+ this.logger = com.destroystokyo.paper.utils.PaperPluginLogger.getLogger(this.description);
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+ }
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+ // Paper end
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}
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/**
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diff --git a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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index 657243776c8a2abb5a57e5c407212a8387d649eb..4fa5f7140ea97e1b6a63808b59115bfb1a85cb32 100644
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--- a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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+++ b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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@@ -44,6 +44,7 @@ public final class PluginClassLoader extends URLClassLoader { // Spigot
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private JavaPlugin pluginInit;
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private IllegalStateException pluginState;
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private final Set<String> seenIllegalAccess = Collections.newSetFromMap(new ConcurrentHashMap<>());
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+ private java.util.logging.Logger logger; // Paper - add field
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static {
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ClassLoader.registerAsParallelCapable();
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@@ -62,6 +63,8 @@ public final class PluginClassLoader extends URLClassLoader { // Spigot
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this.url = file.toURI().toURL();
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this.libraryLoader = libraryLoader;
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+ this.logger = com.destroystokyo.paper.utils.PaperPluginLogger.getLogger(description); // Paper - Register logger early
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+
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try {
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Class<?> jarClass;
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try {
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@@ -229,6 +232,7 @@ public final class PluginClassLoader extends URLClassLoader { // Spigot
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pluginState = new IllegalStateException("Initial initialization");
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this.pluginInit = javaPlugin;
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+ javaPlugin.logger = this.logger; // Paper - set logger
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javaPlugin.init(loader, loader.server, description, dataFolder, file, this);
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}
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}
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