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Paper/patches/server/0386-Deobfuscate-stacktraces-in-log-messages-crash-report.patch
Jake Potrebic 8657cd91d7
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#10164) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
63c208dd Remove no longer used import
70be76c7 PR-958: Further clarify deprecation of TAG_CONTAINER_ARRAY
ae21f4ac PR-955: Add methods to place structures with block/entity transformers
e3d960f2 SPIGOT-7547: Remark that Damageable#setAbsorptionAmount() is capped to a specific value
b125516c Fix typo in RecipeChoice.ExactChoice docs
309497c1 Add EntityMountEvent and EntityDismount Event
2fd45ae3 Improve ItemFactory#enchantItem consistency
2b198268 PR-933: Define native persistent data types for lists

CraftBukkit Changes:
771182f70 PR-1327: Add methods to place structures with block/entity transformers
e41ad4c82 SPIGOT-7567: SpawnReason for SNOWMAN is reported as BUILD_IRONGOLEM
76931e8bd Add EntityMountEvent and EntityDismount Event
9b29b21c7 PR-1183: Better handle lambda expression and renaming of classes in Commodore
1462ebe85 Reformat Commodore.java
9fde4c037 PR-1324: Improve ItemFactory#enchantItem consistency
4e419c774 PR-1295: Define native persistent data types for lists
dd8cca388 SPIGOT-7562: Fix Score#getScore and Score#isScoreSet
690278200 Only fetch an online UUID in online mode
1da8d9a53 Fire PreLogin events even in offline mode
2e88514ad PR-1325: Use CraftBlockType and CraftItemType instead of CraftMagicNumbers to convert between minecraft and bukkit block / item representation

Spigot Changes:
864e4acc Restore accidentally removed package-info.java
f91a10d5 Remove obsolete EntityMountEvent and EntityDismountEvent
828f0593 SPIGOT-7558: Deprecate silenceable lightning API as sound is now client-side and cannot be removed
cdc4e035 Remove obsolete patch fetching correct mode UUIDs
49e36b8e Merge related BungeeCord patches
6e87b9ab Remove obsolete firing of PreLogin events in offline mode
5c76b183 Remove redundant patch dealing with exceptions in the crash reporter
3a2219d1 Remove redundant patch logging cause of unexpected exception
2024-01-14 10:46:04 +01:00

706 lines
37 KiB
Diff
Raw Blame History

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Sun, 20 Jun 2021 18:19:09 -0700
Subject: [PATCH] Deobfuscate stacktraces in log messages, crash reports, and
etc.
diff --git a/build.gradle.kts b/build.gradle.kts
index eaaf9a9779f57ee048245899750bf7a1599b716f..450f7c03bdcc109938ba9b66328bdbb2c96c03c9 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -35,6 +35,7 @@ dependencies {
implementation("org.ow2.asm:asm-commons:9.5")
implementation("org.spongepowered:configurate-yaml:4.2.0-SNAPSHOT") // Paper - config files
implementation("commons-lang:commons-lang:2.6")
+ implementation("net.fabricmc:mapping-io:0.5.0") // Paper - needed to read mappings for stacktrace deobfuscation
runtimeOnly("org.xerial:sqlite-jdbc:3.42.0.1")
runtimeOnly("com.mysql:mysql-connector-j:8.2.0")
runtimeOnly("com.lmax:disruptor:3.4.4") // Paper
@@ -124,6 +125,18 @@ tasks.check {
}
// Paper end
+// Paper start - include reobf mappings in jar for stacktrace deobfuscation
+val includeMappings = tasks.register<io.papermc.paperweight.tasks.IncludeMappings>("includeMappings") {
+ inputJar.set(tasks.fixJarForReobf.flatMap { it.outputJar })
+ mappings.set(tasks.reobfJar.flatMap { it.mappingsFile })
+ mappingsDest.set("META-INF/mappings/reobf.tiny")
+}
+
+tasks.reobfJar {
+ inputJar.set(includeMappings.flatMap { it.outputJar })
+}
+// Paper end - include reobf mappings in jar for stacktrace deobfuscation
+
tasks.test {
exclude("org/bukkit/craftbukkit/inventory/ItemStack*Test.class")
useJUnitPlatform()
diff --git a/src/log4jPlugins/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java b/src/log4jPlugins/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java
new file mode 100644
index 0000000000000000000000000000000000000000..66b6011ee3684695b2ab9292961c80bf2a420ee9
--- /dev/null
+++ b/src/log4jPlugins/java/io/papermc/paper/logging/StacktraceDeobfuscatingRewritePolicy.java
@@ -0,0 +1,66 @@
+package io.papermc.paper.logging;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+import org.apache.logging.log4j.core.Core;
+import org.apache.logging.log4j.core.LogEvent;
+import org.apache.logging.log4j.core.appender.rewrite.RewritePolicy;
+import org.apache.logging.log4j.core.config.plugins.Plugin;
+import org.apache.logging.log4j.core.config.plugins.PluginFactory;
+import org.apache.logging.log4j.core.impl.Log4jLogEvent;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+@Plugin(
+ name = "StacktraceDeobfuscatingRewritePolicy",
+ category = Core.CATEGORY_NAME,
+ elementType = "rewritePolicy",
+ printObject = true
+)
+public final class StacktraceDeobfuscatingRewritePolicy implements RewritePolicy {
+ private static final MethodHandle DEOBFUSCATE_THROWABLE;
+
+ static {
+ try {
+ final Class<?> cls = Class.forName("io.papermc.paper.util.StacktraceDeobfuscator");
+ final MethodHandles.Lookup lookup = MethodHandles.lookup();
+ final VarHandle instanceHandle = lookup.findStaticVarHandle(cls, "INSTANCE", cls);
+ final Object deobfuscator = instanceHandle.get();
+ DEOBFUSCATE_THROWABLE = lookup
+ .unreflect(cls.getDeclaredMethod("deobfuscateThrowable", Throwable.class))
+ .bindTo(deobfuscator);
+ } catch (final ReflectiveOperationException ex) {
+ throw new IllegalStateException(ex);
+ }
+ }
+
+ private StacktraceDeobfuscatingRewritePolicy() {
+ }
+
+ @Override
+ public @NonNull LogEvent rewrite(final @NonNull LogEvent rewrite) {
+ final Throwable thrown = rewrite.getThrown();
+ if (thrown != null) {
+ deobfuscateThrowable(thrown);
+ return new Log4jLogEvent.Builder(rewrite)
+ .setThrownProxy(null)
+ .build();
+ }
+ return rewrite;
+ }
+
+ private static void deobfuscateThrowable(final Throwable thrown) {
+ try {
+ DEOBFUSCATE_THROWABLE.invoke(thrown);
+ } catch (final Error e) {
+ throw e;
+ } catch (final Throwable e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ @PluginFactory
+ public static @NonNull StacktraceDeobfuscatingRewritePolicy createPolicy() {
+ return new StacktraceDeobfuscatingRewritePolicy();
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java b/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
index 0bb4aaa546939b67a5d22865190f30478a9337c1..d3e619655382e50e9ac9323ed942502d85c9599c 100644
--- a/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
+++ b/src/main/java/com/destroystokyo/paper/io/SyncLoadFinder.java
@@ -91,7 +91,7 @@ public class SyncLoadFinder {
final JsonArray traces = new JsonArray();
- for (StackTraceElement element : pair.getFirst().stacktrace) {
+ for (StackTraceElement element : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(pair.getFirst().stacktrace)) {
traces.add(String.valueOf(element));
}
diff --git a/src/main/java/io/papermc/paper/util/ObfHelper.java b/src/main/java/io/papermc/paper/util/ObfHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..e8ff684d8bd994c64ff34f20e1e0601b678244c1
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/ObfHelper.java
@@ -0,0 +1,147 @@
+package io.papermc.paper.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+import net.fabricmc.mappingio.MappingReader;
+import net.fabricmc.mappingio.format.MappingFormat;
+import net.fabricmc.mappingio.tree.MappingTree;
+import net.fabricmc.mappingio.tree.MemoryMappingTree;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+@DefaultQualifier(NonNull.class)
+public enum ObfHelper {
+ INSTANCE;
+
+ public static final String MOJANG_PLUS_YARN_NAMESPACE = "mojang+yarn";
+ public static final String SPIGOT_NAMESPACE = "spigot";
+
+ private final @Nullable Map<String, ClassMapping> mappingsByObfName;
+ private final @Nullable Map<String, ClassMapping> mappingsByMojangName;
+
+ ObfHelper() {
+ final @Nullable Set<ClassMapping> maps = loadMappingsIfPresent();
+ if (maps != null) {
+ this.mappingsByObfName = maps.stream().collect(Collectors.toUnmodifiableMap(ClassMapping::obfName, map -> map));
+ this.mappingsByMojangName = maps.stream().collect(Collectors.toUnmodifiableMap(ClassMapping::mojangName, map -> map));
+ } else {
+ this.mappingsByObfName = null;
+ this.mappingsByMojangName = null;
+ }
+ }
+
+ public @Nullable Map<String, ClassMapping> mappingsByObfName() {
+ return this.mappingsByObfName;
+ }
+
+ public @Nullable Map<String, ClassMapping> mappingsByMojangName() {
+ return this.mappingsByMojangName;
+ }
+
+ /**
+ * Attempts to get the obf name for a given class by its Mojang name. Will
+ * return the input string if mappings are not present.
+ *
+ * @param fullyQualifiedMojangName fully qualified class name (dotted)
+ * @return mapped or original fully qualified (dotted) class name
+ */
+ public String reobfClassName(final String fullyQualifiedMojangName) {
+ if (this.mappingsByMojangName == null) {
+ return fullyQualifiedMojangName;
+ }
+
+ final ClassMapping map = this.mappingsByMojangName.get(fullyQualifiedMojangName);
+ if (map == null) {
+ return fullyQualifiedMojangName;
+ }
+
+ return map.obfName();
+ }
+
+ /**
+ * Attempts to get the Mojang name for a given class by its obf name. Will
+ * return the input string if mappings are not present.
+ *
+ * @param fullyQualifiedObfName fully qualified class name (dotted)
+ * @return mapped or original fully qualified (dotted) class name
+ */
+ public String deobfClassName(final String fullyQualifiedObfName) {
+ if (this.mappingsByObfName == null) {
+ return fullyQualifiedObfName;
+ }
+
+ final ClassMapping map = this.mappingsByObfName.get(fullyQualifiedObfName);
+ if (map == null) {
+ return fullyQualifiedObfName;
+ }
+
+ return map.mojangName();
+ }
+
+ private static @Nullable Set<ClassMapping> loadMappingsIfPresent() {
+ try (final @Nullable InputStream mappingsInputStream = ObfHelper.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny")) {
+ if (mappingsInputStream == null) {
+ return null;
+ }
+ final MemoryMappingTree tree = new MemoryMappingTree();
+ MappingReader.read(new InputStreamReader(mappingsInputStream, StandardCharsets.UTF_8), MappingFormat.TINY_2_FILE, tree);
+ final Set<ClassMapping> classes = new HashSet<>();
+
+ final StringPool pool = new StringPool();
+ for (final MappingTree.ClassMapping cls : tree.getClasses()) {
+ final Map<String, String> methods = new HashMap<>();
+
+ for (final MappingTree.MethodMapping methodMapping : cls.getMethods()) {
+ methods.put(
+ pool.string(methodKey(
+ Objects.requireNonNull(methodMapping.getName(SPIGOT_NAMESPACE)),
+ Objects.requireNonNull(methodMapping.getDesc(SPIGOT_NAMESPACE))
+ )),
+ pool.string(Objects.requireNonNull(methodMapping.getName(MOJANG_PLUS_YARN_NAMESPACE)))
+ );
+ }
+
+ final ClassMapping map = new ClassMapping(
+ Objects.requireNonNull(cls.getName(SPIGOT_NAMESPACE)).replace('/', '.'),
+ Objects.requireNonNull(cls.getName(MOJANG_PLUS_YARN_NAMESPACE)).replace('/', '.'),
+ Map.copyOf(methods)
+ );
+ classes.add(map);
+ }
+
+ return Set.copyOf(classes);
+ } catch (final IOException ex) {
+ System.err.println("Failed to load mappings for stacktrace deobfuscation.");
+ ex.printStackTrace();
+ return null;
+ }
+ }
+
+ public static String methodKey(final String obfName, final String obfDescriptor) {
+ return obfName + obfDescriptor;
+ }
+
+ private static final class StringPool {
+ private final Map<String, String> pool = new HashMap<>();
+
+ public String string(final String string) {
+ return this.pool.computeIfAbsent(string, Function.identity());
+ }
+ }
+
+ public record ClassMapping(
+ String obfName,
+ String mojangName,
+ Map<String, String> methodsByObf
+ ) {}
+}
diff --git a/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
new file mode 100644
index 0000000000000000000000000000000000000000..eb910d4abf91488fa7cf1f5d47e0ee916c47f512
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
@@ -0,0 +1,163 @@
+package io.papermc.paper.util;
+
+import io.papermc.paper.configuration.GlobalConfiguration;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntList;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.framework.qual.DefaultQualifier;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.Label;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+@DefaultQualifier(NonNull.class)
+public enum StacktraceDeobfuscator {
+ INSTANCE;
+
+ private final Map<Class<?>, Map<String, IntList>> lineMapCache = Collections.synchronizedMap(new LinkedHashMap<>(128, 0.75f, true) {
+ @Override
+ protected boolean removeEldestEntry(final Map.Entry<Class<?>, Map<String, IntList>> eldest) {
+ return this.size() > 127;
+ }
+ });
+
+ public void deobfuscateThrowable(final Throwable throwable) {
+ if (GlobalConfiguration.get() != null && !GlobalConfiguration.get().logging.deobfuscateStacktraces) { // handle null as true
+ return;
+ }
+
+ throwable.setStackTrace(this.deobfuscateStacktrace(throwable.getStackTrace()));
+ final Throwable cause = throwable.getCause();
+ if (cause != null) {
+ this.deobfuscateThrowable(cause);
+ }
+ for (final Throwable suppressed : throwable.getSuppressed()) {
+ this.deobfuscateThrowable(suppressed);
+ }
+ }
+
+ public StackTraceElement[] deobfuscateStacktrace(final StackTraceElement[] traceElements) {
+ if (GlobalConfiguration.get() != null && !GlobalConfiguration.get().logging.deobfuscateStacktraces) { // handle null as true
+ return traceElements;
+ }
+
+ final @Nullable Map<String, ObfHelper.ClassMapping> mappings = ObfHelper.INSTANCE.mappingsByObfName();
+ if (mappings == null || traceElements.length == 0) {
+ return traceElements;
+ }
+ final StackTraceElement[] result = new StackTraceElement[traceElements.length];
+ for (int i = 0; i < traceElements.length; i++) {
+ final StackTraceElement element = traceElements[i];
+
+ final String className = element.getClassName();
+ final String methodName = element.getMethodName();
+
+ final ObfHelper.ClassMapping classMapping = mappings.get(className);
+ if (classMapping == null) {
+ result[i] = element;
+ continue;
+ }
+
+ final Class<?> clazz;
+ try {
+ clazz = Class.forName(className);
+ } catch (final ClassNotFoundException ex) {
+ throw new RuntimeException(ex);
+ }
+ final @Nullable String methodKey = this.determineMethodForLine(clazz, element.getLineNumber());
+ final @Nullable String mappedMethodName = methodKey == null ? null : classMapping.methodsByObf().get(methodKey);
+
+ result[i] = new StackTraceElement(
+ element.getClassLoaderName(),
+ element.getModuleName(),
+ element.getModuleVersion(),
+ classMapping.mojangName(),
+ mappedMethodName != null ? mappedMethodName : methodName,
+ sourceFileName(classMapping.mojangName()),
+ element.getLineNumber()
+ );
+ }
+ return result;
+ }
+
+ private @Nullable String determineMethodForLine(final Class<?> clazz, final int lineNumber) {
+ final Map<String, IntList> lineMap = this.lineMapCache.computeIfAbsent(clazz, StacktraceDeobfuscator::buildLineMap);
+ for (final var entry : lineMap.entrySet()) {
+ final String methodKey = entry.getKey();
+ final IntList lines = entry.getValue();
+ for (int i = 0, linesSize = lines.size(); i < linesSize; i++) {
+ final int num = lines.getInt(i);
+ if (num == lineNumber) {
+ return methodKey;
+ }
+ }
+ }
+ return null;
+ }
+
+ private static String sourceFileName(final String fullClassName) {
+ final int dot = fullClassName.lastIndexOf('.');
+ final String className = dot == -1
+ ? fullClassName
+ : fullClassName.substring(dot + 1);
+ final String rootClassName = className.split("\\$")[0];
+ return rootClassName + ".java";
+ }
+
+ private static Map<String, IntList> buildLineMap(final Class<?> key) {
+ final Map<String, IntList> lineMap = new HashMap<>();
+ final class LineCollectingMethodVisitor extends MethodVisitor {
+ private final IntList lines = new IntArrayList();
+ private final String name;
+ private final String descriptor;
+
+ LineCollectingMethodVisitor(String name, String descriptor) {
+ super(Opcodes.ASM9);
+ this.name = name;
+ this.descriptor = descriptor;
+ }
+
+ @Override
+ public void visitLineNumber(int line, Label start) {
+ super.visitLineNumber(line, start);
+ this.lines.add(line);
+ }
+
+ @Override
+ public void visitEnd() {
+ super.visitEnd();
+ lineMap.put(ObfHelper.methodKey(this.name, this.descriptor), this.lines);
+ }
+ }
+ final ClassVisitor classVisitor = new ClassVisitor(Opcodes.ASM9) {
+ @Override
+ public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
+ return new LineCollectingMethodVisitor(name, descriptor);
+ }
+ };
+ try {
+ final @Nullable InputStream inputStream = StacktraceDeobfuscator.class.getClassLoader()
+ .getResourceAsStream(key.getName().replace('.', '/') + ".class");
+ if (inputStream == null) {
+ throw new IllegalStateException("Could not find class file: " + key.getName());
+ }
+ final byte[] classData;
+ try (inputStream) {
+ classData = inputStream.readAllBytes();
+ }
+ final ClassReader reader = new ClassReader(classData);
+ reader.accept(classVisitor, 0);
+ } catch (final IOException ex) {
+ throw new RuntimeException(ex);
+ }
+ return lineMap;
+ }
+}
diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
index 2d5494d2813b773e60ddba6790b750a9a08f21f8..0b210bdf7c1f5962afbd44195af6f84f625635e3 100644
--- a/src/main/java/io/papermc/paper/util/TraceUtil.java
+++ b/src/main/java/io/papermc/paper/util/TraceUtil.java
@@ -6,13 +6,20 @@ public final class TraceUtil {
public static void dumpTraceForThread(Thread thread, String reason) {
Bukkit.getLogger().warning(thread.getName() + ": " + reason);
- StackTraceElement[] trace = thread.getStackTrace();
+ StackTraceElement[] trace = StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(thread.getStackTrace());
for (StackTraceElement traceElement : trace) {
Bukkit.getLogger().warning("\tat " + traceElement);
}
}
public static void dumpTraceForThread(String reason) {
- new Throwable(reason).printStackTrace();
+ final Throwable throwable = new Throwable(reason);
+ StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(throwable);
+ throwable.printStackTrace();
+ }
+
+ public static void printStackTrace(Throwable thr) {
+ StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(thr);
+ thr.printStackTrace();
}
}
diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
index 059b1a0bf048af6a28c322f35da3d3cbbe426546..e047dee632022abfe05865d1e71838be8d5d053a 100644
--- a/src/main/java/net/minecraft/CrashReport.java
+++ b/src/main/java/net/minecraft/CrashReport.java
@@ -34,6 +34,7 @@ public class CrashReport {
private final SystemReport systemReport = new SystemReport();
public CrashReport(String message, Throwable cause) {
+ io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(cause); // Paper
this.title = message;
this.exception = cause;
this.systemReport.setDetail("CraftBukkit Information", new org.bukkit.craftbukkit.CraftCrashReport()); // CraftBukkit
diff --git a/src/main/java/net/minecraft/CrashReportCategory.java b/src/main/java/net/minecraft/CrashReportCategory.java
index 52eb3176437113f9a0ff85d10ce5c2415e1b5570..b54ddd0ba0b001fbcb1838a838ca4890df936f1b 100644
--- a/src/main/java/net/minecraft/CrashReportCategory.java
+++ b/src/main/java/net/minecraft/CrashReportCategory.java
@@ -104,6 +104,7 @@ public class CrashReportCategory {
} else {
this.stackTrace = new StackTraceElement[stackTraceElements.length - 3 - ignoredCallCount];
System.arraycopy(stackTraceElements, 3 + ignoredCallCount, this.stackTrace, 0, this.stackTrace.length);
+ this.stackTrace = io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(this.stackTrace); // Paper
return this.stackTrace.length;
}
}
diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
index 93d3f29b08c79479c27d3f39e6c799c705e69902..38650109c1d2683a27da5788dc6013d8d0db26ad 100644
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
@@ -75,13 +75,13 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
public static final AttributeKey<ConnectionProtocol.CodecData<?>> ATTRIBUTE_SERVERBOUND_PROTOCOL = AttributeKey.valueOf("serverbound_protocol");
public static final AttributeKey<ConnectionProtocol.CodecData<?>> ATTRIBUTE_CLIENTBOUND_PROTOCOL = AttributeKey.valueOf("clientbound_protocol");
public static final Supplier<NioEventLoopGroup> NETWORK_WORKER_GROUP = Suppliers.memoize(() -> {
- return new NioEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Client IO #%d").setDaemon(true).build());
+ return new NioEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Client IO #%d").setDaemon(true).setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(LOGGER)).build()); // Paper
});
public static final Supplier<EpollEventLoopGroup> NETWORK_EPOLL_WORKER_GROUP = Suppliers.memoize(() -> {
- return new EpollEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Epoll Client IO #%d").setDaemon(true).build());
+ return new EpollEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Epoll Client IO #%d").setDaemon(true).setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(LOGGER)).build()); // Paper
});
public static final Supplier<DefaultEventLoopGroup> LOCAL_WORKER_GROUP = Suppliers.memoize(() -> {
- return new DefaultEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Local Client IO #%d").setDaemon(true).build());
+ return new DefaultEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Local Client IO #%d").setDaemon(true).setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(LOGGER)).build()); // Paper
});
private final PacketFlow receiving;
private final Queue<WrappedConsumer> pendingActions = Queues.newConcurrentLinkedQueue();
@@ -211,7 +211,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
}
}
- if (net.minecraft.server.MinecraftServer.getServer().isDebugging()) throwable.printStackTrace(); // Spigot
+ if (net.minecraft.server.MinecraftServer.getServer().isDebugging()) io.papermc.paper.util.TraceUtil.printStackTrace(throwable); // Spigot // Paper
}
protected void channelRead0(ChannelHandlerContext channelhandlercontext, Packet<?> packet) {
diff --git a/src/main/java/net/minecraft/network/PacketEncoder.java b/src/main/java/net/minecraft/network/PacketEncoder.java
index 2907536f8f9b4b9dccb96f8b4f19d75fa3c5b864..b5b228e67284baad3639b283595427a819bb1a44 100644
--- a/src/main/java/net/minecraft/network/PacketEncoder.java
+++ b/src/main/java/net/minecraft/network/PacketEncoder.java
@@ -47,7 +47,14 @@ public class PacketEncoder extends MessageToByteEncoder<Packet<?>> {
JvmProfiler.INSTANCE.onPacketSent(codecData.protocol(), i, channelHandlerContext.channel().remoteAddress(), k);
} catch (Throwable var13) {
- LOGGER.error("Packet encoding of packet ID {} threw (skippable? {})", i, packet.isSkippable(), var13); // Paper - Give proper error message
+ // Paper start - Give proper error message
+ String packetName = io.papermc.paper.util.ObfHelper.INSTANCE.deobfClassName(packet.getClass().getName());
+ if (packetName.contains(".")) {
+ packetName = packetName.substring(packetName.lastIndexOf(".") + 1);
+ }
+
+ LOGGER.error("Packet encoding of packet {} (ID: {}) threw (skippable? {})", packetName, i, packet.isSkippable(), var13);
+ // Paper end
if (packet.isSkippable()) {
throw new SkipPacketException(var13);
}
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index 9ddcca2c17c15c5c7d88046aeae8b5588ad4612d..c7696765ff6b1e27c108d2668c32abbbab35896c 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -194,6 +194,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
org.spigotmc.SpigotConfig.init((java.io.File) this.options.valueOf("spigot-settings"));
org.spigotmc.SpigotConfig.registerCommands();
// Spigot end
+ io.papermc.paper.util.ObfHelper.INSTANCE.getClass(); // Paper - load mappings for stacktrace deobf and etc.
// Paper start - initialize global and world-defaults configuration
this.paperConfigurations.initializeGlobalConfiguration(this.registryAccess());
this.paperConfigurations.initializeWorldDefaultsConfiguration(this.registryAccess());
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 1c0d2aad70b3817913e93354ccc055b82ae321bc..51379dc93af2eaa3294179debe067d62627b60e1 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -222,7 +222,9 @@ public class ServerLevel extends Level implements WorldGenLevel {
public final UUID uuid;
public boolean hasPhysicsEvent = true; // Paper
public static Throwable getAddToWorldStackTrace(Entity entity) {
- return new Throwable(entity + " Added to world at " + new java.util.Date());
+ final Throwable thr = new Throwable(entity + " Added to world at " + new java.util.Date());
+ io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateThrowable(thr);
+ return thr;
}
@Override public LevelChunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
@@ -1492,7 +1494,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
if (entity.isRemoved()) {
// Paper start
if (DEBUG_ENTITIES) {
- new Throwable("Tried to add entity " + entity + " but it was marked as removed already").printStackTrace(); // CraftBukkit
+ io.papermc.paper.util.TraceUtil.dumpTraceForThread("Tried to add entity " + entity + " but it was marked as removed already"); // CraftBukkit
getAddToWorldStackTrace(entity).printStackTrace();
}
// Paper end
diff --git a/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
index e48b287d6229f8043fba8a417f0b7558d6079783..cae10b963d153fb1777b18054796a45b2809342b 100644
--- a/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
@@ -133,7 +133,7 @@ public class ServerConfigurationPacketListenerImpl extends ServerCommonPacketLis
ServerConfigurationPacketListenerImpl.LOGGER.error("Couldn't place player in world", exception);
// Paper start
if (MinecraftServer.getServer().isDebugging()) {
- exception.printStackTrace();
+ io.papermc.paper.util.TraceUtil.printStackTrace(exception);
}
// Paper end
this.connection.send(new ClientboundDisconnectPacket(ServerConfigurationPacketListenerImpl.DISCONNECT_REASON_INVALID_DATA));
diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
index caeead6c6082855f1651ee28263cc9f60423ca0c..b2bfb3893200362ac35ae60982f203f86a1148ec 100644
--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
@@ -52,10 +52,10 @@ public class ServerConnectionListener {
private static final Logger LOGGER = LogUtils.getLogger();
public static final Supplier<NioEventLoopGroup> SERVER_EVENT_GROUP = Suppliers.memoize(() -> {
- return new NioEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Server IO #%d").setDaemon(true).build());
+ return new NioEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Server IO #%d").setDaemon(true).setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(LOGGER)).build()); // Paper
});
public static final Supplier<EpollEventLoopGroup> SERVER_EPOLL_EVENT_GROUP = Suppliers.memoize(() -> {
- return new EpollEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Epoll Server IO #%d").setDaemon(true).build());
+ return new EpollEventLoopGroup(0, (new ThreadFactoryBuilder()).setNameFormat("Netty Epoll Server IO #%d").setDaemon(true).setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(LOGGER)).build()); // Paper
});
final MinecraftServer server;
public volatile boolean running;
diff --git a/src/main/java/net/minecraft/server/players/OldUsersConverter.java b/src/main/java/net/minecraft/server/players/OldUsersConverter.java
index 6a64c58fff9bbed542bf29a029531996f2a50d00..c24898f8e81e8ab9a1f90bf4439ea6c6f42f0508 100644
--- a/src/main/java/net/minecraft/server/players/OldUsersConverter.java
+++ b/src/main/java/net/minecraft/server/players/OldUsersConverter.java
@@ -358,7 +358,7 @@ public class OldUsersConverter {
try {
root = NbtIo.readCompressed(new java.io.FileInputStream(file5), NbtAccounter.unlimitedHeap());
} catch (Exception exception) {
- exception.printStackTrace();
+ io.papermc.paper.util.TraceUtil.printStackTrace(exception); // Paper
ServerInternalException.reportInternalException(exception); // Paper
}
@@ -372,7 +372,7 @@ public class OldUsersConverter {
try {
NbtIo.writeCompressed(root, new java.io.FileOutputStream(file2));
} catch (Exception exception) {
- exception.printStackTrace();
+ io.papermc.paper.util.TraceUtil.printStackTrace(exception); // Paper
ServerInternalException.reportInternalException(exception); // Paper
}
}
diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
index 45ecda3b67025881a145d40a5291c34e5a1f9590..27e8ee4507460b1cc72de692b41562b9f4f13929 100644
--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
@@ -599,7 +599,7 @@ public class LevelChunk extends ChunkAccess {
+ " (" + getBlockState(blockposition) + ") where there was no entity tile!\n" +
"Chunk coordinates: " + (this.chunkPos.x * 16) + "," + (this.chunkPos.z * 16) +
"\nWorld: " + level.getLevel().dimension().location());
- e.printStackTrace();
+ io.papermc.paper.util.TraceUtil.printStackTrace(e);
ServerInternalException.reportInternalException(e);
// Paper end
// CraftBukkit end
diff --git a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
index 3c1992e212a6d6f1db4d5b807b38d71913619fc0..9c1aff17aabd062640e3f451a2ef8c50a7c62f10 100644
--- a/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
+++ b/src/main/java/org/bukkit/craftbukkit/scheduler/CraftAsyncScheduler.java
@@ -40,9 +40,9 @@ public class CraftAsyncScheduler extends CraftScheduler {
private final ThreadPoolExecutor executor = new ThreadPoolExecutor(
4, Integer.MAX_VALUE,30L, TimeUnit.SECONDS, new SynchronousQueue<>(),
- new ThreadFactoryBuilder().setNameFormat("Craft Scheduler Thread - %1$d").build());
+ new ThreadFactoryBuilder().setNameFormat("Craft Scheduler Thread - %1$d").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build()); // Paper
private final Executor management = Executors.newSingleThreadExecutor(new ThreadFactoryBuilder()
- .setNameFormat("Craft Async Scheduler Management Thread").build());
+ .setNameFormat("Craft Async Scheduler Management Thread").setUncaughtExceptionHandler(new net.minecraft.DefaultUncaughtExceptionHandlerWithName(net.minecraft.server.MinecraftServer.LOGGER)).build()); // Paper
private final List<CraftTask> temp = new ArrayList<>();
CraftAsyncScheduler() {
diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
index 5ca863aa1859922fa359eba32539229db40e5b98..dca163ff5436f1007383c8261cac1ac7c0613f23 100644
--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
@@ -105,7 +105,7 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
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() )
+ for ( StackTraceElement stack : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(org.bukkit.craftbukkit.CraftServer.excessiveVelEx.getStackTrace()) ) // Paper
{
log.log( Level.SEVERE, "\t\t" + stack );
}
@@ -192,7 +192,7 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
}
log.log( Level.SEVERE, "\tStack:" );
//
- for ( StackTraceElement stack : thread.getStackTrace() )
+ for ( StackTraceElement stack : io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.deobfuscateStacktrace(thread.getStackTrace()) ) // Paper
{
log.log( Level.SEVERE, "\t\t" + stack );
}
diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
index 266b4e6fb3988b5848021c83fdc68e342c70b188..2b247d55e39246fbef31279b14c45fc40f956bfb 100644
--- a/src/main/resources/log4j2.xml
+++ b/src/main/resources/log4j2.xml
@@ -30,10 +30,14 @@
<DefaultRolloverStrategy max="1000"/>
</RollingRandomAccessFile>
<Async name="Async">
+ <AppenderRef ref="rewrite"/>
+ </Async>
+ <Rewrite name="rewrite">
+ <StacktraceDeobfuscatingRewritePolicy />
<AppenderRef ref="File"/>
<AppenderRef ref="TerminalConsole" level="info"/>
<AppenderRef ref="ServerGuiConsole" level="info"/>
- </Async>
+ </Rewrite>
</Appenders>
<Loggers>
<Root level="info">
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