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[ci skip] Put mappings util in a separate class to the stacktrace deobfuscator (#6230)

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This commit is contained in:
Jason Penilla 2021-07-19 19:22:18 -07:00
parent d3ba412286
commit 4ca56ff079
2 changed files with 119 additions and 95 deletions
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180
patches/server/Deobfuscate-stacktraces-in-log-messages-crash-report.patch
View File

@ -157,60 +157,49 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ return new StacktraceDeobfuscatingRewritePolicy();
+ }
+}
diff --git a/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
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..0000000000000000000000000000000000000000
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
+++ b/src/main/java/io/papermc/paper/util/ObfHelper.java
@@ -0,0 +0,0 @@
+package io.papermc.paper.util;
+
+import com.destroystokyo.paper.PaperConfig;
+import com.google.common.base.Charsets;
+import com.google.common.collect.ImmutableMap;
+import com.mojang.datafixers.util.Pair;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntList;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import net.fabricmc.mapping.tree.ClassDef;
+import net.fabricmc.mapping.tree.MethodDef;
+import net.fabricmc.mapping.tree.TinyMappingFactory;
+import net.fabricmc.mapping.tree.TinyTree;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+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;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+public enum StacktraceDeobfuscator {
+@DefaultQualifier(NonNull.class)
+public enum ObfHelper {
+ INSTANCE;
+
+ private static final String MOJANG_PLUS_YARN_NAMESPACE = "mojang+yarn";
+ private static final String SPIGOT_NAMESPACE = "spigot";
+ public static final String MOJANG_PLUS_YARN_NAMESPACE = "mojang+yarn";
+ public static final String SPIGOT_NAMESPACE = "spigot";
+
+ private final @Nullable Map<String, ClassMapping> mappings;
+ private final Map<Class<?>, Map<Pair<String, String>, IntList>> lineMapCache = Collections.synchronizedMap(new LinkedHashMap<>(64, 0.75f, true) {
+ @Override
+ protected boolean removeEldestEntry(final Map.Entry<Class<?>, Map<Pair<String, String>, IntList>> eldest) {
+ return this.size() > 63;
+ }
+ });
+
+ StacktraceDeobfuscator() {
+ ObfHelper() {
+ this.mappings = loadMappingsIfPresent();
+ }
+
+ public @Nullable Map<String, ClassMapping> mappings() {
+ return this.mappings;
+ }
+
+ private static @Nullable Map<String, ClassMapping> loadMappingsIfPresent() {
+ try (final InputStream mappingsInputStream = StacktraceDeobfuscator.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny")) {
+ try (final @Nullable InputStream mappingsInputStream = StacktraceDeobfuscator.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny")) {
+ if (mappingsInputStream == null) {
+ return null;
+ }
@ -249,6 +238,55 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ }
+ }
+
+ public record ClassMapping(
+ String obfName,
+ String mojangName,
+ Map<Pair<String, String>, MethodMapping> methodMappings
+ ) {}
+
+ public record MethodMapping(
+ String obfName,
+ String mojangName,
+ String descriptor
+ ) {}
+}
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..0000000000000000000000000000000000000000
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
@@ -0,0 +0,0 @@
+package io.papermc.paper.util;
+
+import com.destroystokyo.paper.PaperConfig;
+import com.mojang.datafixers.util.Pair;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntList;
+import java.io.IOException;
+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<Pair<String, String>, IntList>> lineMapCache = Collections.synchronizedMap(new LinkedHashMap<>(128, 0.75f, true) {
+ @Override
+ protected boolean removeEldestEntry(final Map.Entry<Class<?>, Map<Pair<String, String>, IntList>> eldest) {
+ return this.size() > 127;
+ }
+ });
+
+ public void deobfuscateThrowable(final Throwable throwable) {
+ if (!PaperConfig.deobfuscateStacktraces) {
+ return;
@ -269,7 +307,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ return traceElements;
+ }
+
+ if (this.mappings == null || traceElements.length == 0) {
+ final @Nullable Map<String, ObfHelper.ClassMapping> mappings = ObfHelper.INSTANCE.mappings();
+ if (mappings == null || traceElements.length == 0) {
+ return traceElements;
+ }
+ final StackTraceElement[] result = new StackTraceElement[traceElements.length];
@ -279,21 +318,22 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ final String className = element.getClassName();
+ final String methodName = element.getMethodName();
+
+ final ClassMapping classMapping = this.mappings.get(className);
+ final ObfHelper.ClassMapping classMapping = mappings.get(className);
+ if (classMapping == null) {
+ result[i] = element;
+ continue;
+ }
+
+ final Pair<String, String> nameDescriptorPair;
+ final Class<?> clazz;
+ try {
+ final Class<?> clazz = Class.forName(className);
+ nameDescriptorPair = this.determineMethodForLine(clazz, element.getLineNumber());
+ } catch (final ReflectiveOperationException ex) {
+ clazz = Class.forName(className);
+ } catch (final ClassNotFoundException ex) {
+ throw new RuntimeException(ex);
+ }
+
+ final MethodMapping methodMapping = classMapping.methodMappings().get(nameDescriptorPair);
+ final @Nullable Pair<String, String> nameDescriptorPair = this.determineMethodForLine(clazz, element.getLineNumber());
+ final ObfHelper.@Nullable MethodMapping methodMapping = nameDescriptorPair == null
+ ? null
+ : classMapping.methodMappings().get(nameDescriptorPair);
+
+ result[i] = new StackTraceElement(
+ element.getClassLoaderName(),
@ -301,14 +341,38 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ element.getModuleVersion(),
+ classMapping.mojangName(),
+ methodMapping != null ? methodMapping.mojangName() : methodName,
+ this.mappedFileName(classMapping.mojangName()),
+ sourceFileName(classMapping.mojangName()),
+ element.getLineNumber()
+ );
+ }
+ return result;
+ }
+
+ private static @NotNull Map<Pair<String, String>, IntList> buildLineMap(final @NotNull Class<?> key) {
+ private @Nullable Pair<String, String> determineMethodForLine(final Class<?> clazz, final int lineNumber) {
+ final Map<Pair<String, String>, IntList> lineMap = this.lineMapCache.computeIfAbsent(clazz, StacktraceDeobfuscator::buildLineMap);
+ for (final var entry : lineMap.entrySet()) {
+ final Pair<String, String> pair = 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 pair;
+ }
+ }
+ }
+ 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<Pair<String, String>, IntList> buildLineMap(final Class<?> key) {
+ final Map<Pair<String, String>, IntList> lineMap = new HashMap<>();
+ final class LineCollectingMethodVisitor extends MethodVisitor {
+ private final IntList lines = new IntArrayList();
@ -347,48 +411,6 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ }
+ return lineMap;
+ }
+
+ private @Nullable Pair<String, String> determineMethodForLine(final @NotNull Class<?> clazz, final int lineNumber) {
+ final Map<Pair<String, String>, IntList> lineMap = this.lineMapCache.computeIfAbsent(clazz, StacktraceDeobfuscator::buildLineMap);
+ for (final var entry : lineMap.entrySet()) {
+ final Pair<String, String> pair = 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 pair;
+ }
+ }
+ }
+ return null;
+ }
+
+ private @NotNull String mappedFileName(final @NotNull 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";
+ }
+
+ public record ClassMapping(
+ String obfName,
+ String mojangName,
+ Map<Pair<String, String>, MethodMapping> methodMappings
+ ) {
+ }
+
+ public record MethodMapping(
+ String obfName,
+ String mojangName,
+ String descriptor
+ ) {
+ }
+
+ public @Nullable Map<String, ClassMapping> mappings() {
+ return mappings;
+ }
+}
diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
@ -444,7 +466,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
com.destroystokyo.paper.PaperConfig.registerCommands();
com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
io.papermc.paper.brigadier.PaperBrigadierProviderImpl.INSTANCE.getClass(); // init PaperBrigadierProvider
+ io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.getClass(); // load mappings for stacktrace deobf
+ io.papermc.paper.util.ObfHelper.INSTANCE.getClass(); // load mappings for stacktrace deobf and etc.
// Paper end
this.setPvpAllowed(dedicatedserverproperties.pvp);

34
patches/server/Rate-options-and-timings-for-sensors-and-behaviors.patch
View File

@ -130,16 +130,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
this.maxDuration = maxRunTime;
this.entryCondition = requiredMemoryState;
+ // Paper start - configurable behavior tick rate and timings
+ Map<String, io.papermc.paper.util.StacktraceDeobfuscator.ClassMapping> mappings = io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.mappings();
+ String key;
+ String key = this.getClass().getSimpleName();
+ final var mappings = io.papermc.paper.util.ObfHelper.INSTANCE.mappings();
+ if (mappings != null) {
+ key = mappings.get(getClass().getName()).mojangName();
+ int lastSeparator = key.lastIndexOf('.');
+ if (lastSeparator != -1) {
+ key = key.substring(lastSeparator + 1);
+ final var classMapping = mappings.get(this.getClass().getName());
+ if (classMapping != null) {
+ key = classMapping.mojangName();
+ int lastSeparator = key.lastIndexOf('.');
+ if (lastSeparator != -1) {
+ key = key.substring(lastSeparator + 1);
+ }
+ }
+ } else {
+ key = getClass().getSimpleName();
+ }
+ this.configKey = key.toLowerCase(java.util.Locale.ROOT);
+ this.timing = co.aikar.timings.MinecraftTimings.getBehaviorTimings(configKey);
@ -196,16 +197,17 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
public Sensor(int senseInterval) {
+ // Paper start - configurable sensor tick rate and timings
+ java.util.Map<String, io.papermc.paper.util.StacktraceDeobfuscator.ClassMapping> mappings = io.papermc.paper.util.StacktraceDeobfuscator.INSTANCE.mappings();
+ String key;
+ String key = this.getClass().getSimpleName();
+ final var mappings = io.papermc.paper.util.ObfHelper.INSTANCE.mappings();
+ if (mappings != null) {
+ key = mappings.get(getClass().getName()).mojangName();
+ int lastSeparator = key.lastIndexOf('.');
+ if (lastSeparator != -1) {
+ key = key.substring(lastSeparator + 1);
+ final var classMapping = mappings.get(this.getClass().getName());
+ if (classMapping != null) {
+ key = classMapping.mojangName();
+ int lastSeparator = key.lastIndexOf('.');
+ if (lastSeparator != -1) {
+ key = key.substring(lastSeparator + 1);
+ }
+ }
+ } else {
+ key = getClass().getSimpleName();
+ }
+ this.configKey = key.toLowerCase(java.util.Locale.ROOT);
+ this.timing = co.aikar.timings.MinecraftTimings.getSensorTimings(configKey);