Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-18 12:30:06 +01:00
Expand where stacktraces can be deobfuscated (#5944)
Also load the mappings from the correct location
Dieser Commit ist enthalten in:
Jason
GitHub
Ursprung
40e27befc2
Commit
ae95311131
@ -1,8 +1,8 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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Date: Sun, 20 Jun 2021 18:19:09 -0700
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Subject: [PATCH] Deobfuscate stacktraces in log messages using a
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RewriteAppender and a custom RewritePolicy
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Subject: [PATCH] Deobfuscate stacktraces in log messages, crash reports, and
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etc.
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diff --git a/build.gradle.kts b/build.gradle.kts
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@ -109,12 +109,49 @@ index 7acf077bc131af718c7548cc29deef558c04e463..73652e403eaa419fb5b4b54bd506f246
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public static int itemValidationLoreLineLength = 8192;
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diff --git a/src/main/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java b/src/main/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e66481ff0277
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index 0000000000000000000000000000000000000000..d019802a36dbaca4bf299a55d28381e43d6b976f
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java
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@@ -0,0 +1,242 @@
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@@ -0,0 +1,31 @@
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+package io.papermc.paper.logging;
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+
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+import io.papermc.paper.util.StacktraceDeobfuscator;
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+import org.apache.logging.log4j.core.Core;
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+import org.apache.logging.log4j.core.LogEvent;
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+import org.apache.logging.log4j.core.appender.rewrite.RewritePolicy;
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+import org.apache.logging.log4j.core.config.plugins.Plugin;
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+import org.apache.logging.log4j.core.config.plugins.PluginFactory;
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+import org.jetbrains.annotations.NotNull;
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+
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+@Plugin(
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+ name = "StacktraceDeobfuscatingRewritePolicy",
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+ category = Core.CATEGORY_NAME,
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+ elementType = "rewritePolicy",
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+ printObject = true
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+)
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+public final class StacktraceDeobfuscatingRewritePolicy implements RewritePolicy {
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+ @Override
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+ public @NotNull LogEvent rewrite(final @NotNull LogEvent rewrite) {
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+ final Throwable thrown = rewrite.getThrown();
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+ if (thrown != null) {
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+ StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(thrown);
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+ }
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+ return rewrite;
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+ }
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+
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+ @PluginFactory
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+ public static @NotNull StacktraceDeobfuscatingRewritePolicy createPolicy() {
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+ return new StacktraceDeobfuscatingRewritePolicy();
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..281fd2dbc7f1281ba882020be2a3481fe8909685
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
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@@ -0,0 +1,223 @@
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+package io.papermc.paper.util;
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+
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+import com.destroystokyo.paper.PaperConfig;
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+import com.google.common.base.Charsets;
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+import com.google.common.collect.ImmutableMap;
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@ -133,11 +170,6 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+import net.fabricmc.mapping.tree.MethodDef;
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+import net.fabricmc.mapping.tree.TinyMappingFactory;
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+import net.fabricmc.mapping.tree.TinyTree;
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+import org.apache.logging.log4j.core.Core;
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+import org.apache.logging.log4j.core.LogEvent;
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+import org.apache.logging.log4j.core.appender.rewrite.RewritePolicy;
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+import org.apache.logging.log4j.core.config.plugins.Plugin;
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+import org.apache.logging.log4j.core.config.plugins.PluginFactory;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Nullable;
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+import org.objectweb.asm.ClassReader;
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@ -146,13 +178,9 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+import org.objectweb.asm.MethodVisitor;
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+import org.objectweb.asm.Opcodes;
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+
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+@Plugin(
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+ name = "StacktraceDeobfuscatingRewritePolicy",
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+ category = Core.CATEGORY_NAME,
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+ elementType = "rewritePolicy",
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+ printObject = true
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+)
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+public final class StacktraceDeobfuscatingRewritePolicy implements RewritePolicy {
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+public enum StacktraceDeobfuscator {
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+ INSTANCE;
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+
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+ private static final String MOJANG_PLUS_YARN_NAMESPACE = "mojang+yarn";
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+ private static final String SPIGOT_NAMESPACE = "spigot";
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+
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@ -164,12 +192,12 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+ }
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+ });
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+
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+ StacktraceDeobfuscatingRewritePolicy() {
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+ StacktraceDeobfuscator() {
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+ this.mappings = loadMappingsIfPresent();
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+ }
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+
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+ private static @Nullable Map<String, ClassMapping> loadMappingsIfPresent() {
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+ try (final InputStream mappingsInputStream = StacktraceDeobfuscatingRewritePolicy.class.getClassLoader().getResourceAsStream("mappings/reobf.tiny")) {
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+ try (final InputStream mappingsInputStream = StacktraceDeobfuscator.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny")) {
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+ if (mappingsInputStream == null) {
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+ return null;
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+ }
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@ -208,20 +236,11 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+ }
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+ }
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+
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+ @Override
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+ public @NotNull LogEvent rewrite(final @NotNull LogEvent rewrite) {
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+ if (!PaperConfig.deobfuscateStacktraces) {
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+ return rewrite;
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+ }
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+
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+ final Throwable thrown = rewrite.getThrown();
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+ if (thrown != null) {
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+ this.deobfuscateThrowable(thrown);
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+ }
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+ return rewrite;
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+ }
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+
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+ public void deobfuscateThrowable(final Throwable throwable) {
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+ if (!PaperConfig.deobfuscateStacktraces) {
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+ return;
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+ }
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+
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+ throwable.setStackTrace(this.deobfuscateStacktrace(throwable.getStackTrace()));
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+ final Throwable cause = throwable.getCause();
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+ if (cause != null) {
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@ -233,6 +252,10 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+ }
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+
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+ public StackTraceElement[] deobfuscateStacktrace(final StackTraceElement[] traceElements) {
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+ if (!PaperConfig.deobfuscateStacktraces) {
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+ return traceElements;
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+ }
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+
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+ if (this.mappings == null || traceElements.length == 0) {
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+ return traceElements;
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+ }
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@ -313,7 +336,7 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+ }
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+
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+ private @Nullable Pair<String, String> determineMethodForLine(final @NotNull Class<?> clazz, final int lineNumber) {
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+ final Map<Pair<String, String>, IntList> lineMap = this.lineMapCache.computeIfAbsent(clazz, StacktraceDeobfuscatingRewritePolicy::buildLineMap);
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+ final Map<Pair<String, String>, IntList> lineMap = this.lineMapCache.computeIfAbsent(clazz, StacktraceDeobfuscator::buildLineMap);
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+ for (final var entry : lineMap.entrySet()) {
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+ final Pair<String, String> pair = entry.getKey();
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+ final IntList lines = entry.getValue();
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@ -336,11 +359,6 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+ return rootClassName + ".java";
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+ }
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+
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+ @PluginFactory
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+ public static @NotNull StacktraceDeobfuscatingRewritePolicy createPolicy() {
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+ return new StacktraceDeobfuscatingRewritePolicy();
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+ }
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+
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+ private record ClassMapping(
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+ String obfName,
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+ String mojangName,
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@ -355,6 +373,74 @@ index 0000000000000000000000000000000000000000..5293a59d17eeb711694965816857e664
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+ ) {
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
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index 2d5494d2813b773e60ddba6790b750a9a08f21f8..7695bf44503f161523ea612ef8a884ae574a2e21 100644
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--- a/src/main/java/io/papermc/paper/util/TraceUtil.java
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+++ b/src/main/java/io/papermc/paper/util/TraceUtil.java
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@@ -6,13 +6,15 @@ public final class TraceUtil {
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public static void dumpTraceForThread(Thread thread, String reason) {
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Bukkit.getLogger().warning(thread.getName() + ": " + reason);
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- StackTraceElement[] trace = thread.getStackTrace();
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+ StackTraceElement[] trace = StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(thread.getStackTrace());
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for (StackTraceElement traceElement : trace) {
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Bukkit.getLogger().warning("\tat " + traceElement);
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}
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}
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public static void dumpTraceForThread(String reason) {
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- new Throwable(reason).printStackTrace();
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+ final Throwable throwable = new Throwable(reason);
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+ StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(throwable);
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+ throwable.printStackTrace();
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}
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}
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diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
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index 09f56e49383d3f5413ad4c28f3a7664e4d9570bd..afb4fd59bfc8cf71d3a7fdc1cdf1b4c565146952 100644
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--- a/src/main/java/net/minecraft/CrashReport.java
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+++ b/src/main/java/net/minecraft/CrashReport.java
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@@ -29,6 +29,7 @@ public class CrashReport {
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private final SystemReport systemReport = new SystemReport();
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public CrashReport(String message, Throwable cause) {
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+ io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(cause); // Paper
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this.title = message;
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this.exception = cause;
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this.systemReport.setDetail("CraftBukkit Information", new org.bukkit.craftbukkit.CraftCrashReport()); // CraftBukkit
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diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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index eeefbb86cb88bd1b132bb6e22b4a4572cfb5e22c..6a1fd7a983724d9e16e8aef06052108ba7ed46f1 100644
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--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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@@ -220,6 +220,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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com.destroystokyo.paper.PaperConfig.registerCommands();
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com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
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io.papermc.paper.brigadier.PaperBrigadierProviderImpl.INSTANCE.getClass(); // init PaperBrigadierProvider
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+ io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.getClass(); // load mappings for stacktrace deobf
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// Paper end
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this.setPvpAllowed(dedicatedserverproperties.pvp);
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diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
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index 4d271cae88c16ed2419f896c728fdff612540500..dcfbe77bdb25d9c58ffb7b75c48bdb580bc0de47 100644
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--- a/src/main/java/org/spigotmc/WatchdogThread.java
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+++ b/src/main/java/org/spigotmc/WatchdogThread.java
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@@ -106,7 +106,7 @@ public class WatchdogThread extends Thread
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log.log( Level.SEVERE, "During the run of the server, a plugin set an excessive velocity on an entity" );
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log.log( Level.SEVERE, "This may be the cause of the issue, or it may be entirely unrelated" );
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log.log( Level.SEVERE, org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getMessage());
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- for ( StackTraceElement stack : org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace() )
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+ for ( StackTraceElement stack : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace()) ) // Paper
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{
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log.log( Level.SEVERE, "\t\t" + stack );
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}
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@@ -194,7 +194,7 @@ public class WatchdogThread extends Thread
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}
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log.log( Level.SEVERE, "\tStack:" );
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//
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- for ( StackTraceElement stack : thread.getStackTrace() )
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+ for ( StackTraceElement stack : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(thread.getStackTrace()) ) // Paper
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{
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log.log( Level.SEVERE, "\t\t" + stack );
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}
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diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
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index 67da1aa7a21622fb231d19dede3775a282a4a12e..f91d0df569b2f1d430ea5eee5f53779902a4f32c 100644
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--- a/src/main/resources/log4j2.xml
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