729 Zeilen
34 KiB
Diff
729 Zeilen
34 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Nassim Jahnke <nassim@njahnke.dev>
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Date: Sun, 30 Oct 2022 23:47:26 +0100
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Subject: [PATCH] Remap reflection calls in plugins using internals
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Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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diff --git a/build.gradle.kts b/build.gradle.kts
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index 8350fc099b68918fb03a21b6a5047ceee72dcbb4..708448e071ddb5558658d3096b1d7ee2593ec8c5 100644
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--- a/build.gradle.kts
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+++ b/build.gradle.kts
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@@ -47,6 +47,12 @@ dependencies {
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testImplementation("org.junit-pioneer:junit-pioneer:2.2.0") // Paper - CartesianTest
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implementation("net.neoforged:srgutils:1.0.9") // Paper - mappings handling
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implementation("net.neoforged:AutoRenamingTool:2.0.3") // Paper - remap plugins
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+ // Paper start - Remap reflection
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+ val reflectionRewriterVersion = "0.0.1"
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+ implementation("io.papermc:reflection-rewriter:$reflectionRewriterVersion")
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+ implementation("io.papermc:reflection-rewriter-runtime:$reflectionRewriterVersion")
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+ implementation("io.papermc:reflection-rewriter-proxy-generator:$reflectionRewriterVersion")
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+ // Paper end - Remap reflection
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}
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paperweight {
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diff --git a/src/main/java/io/papermc/paper/configuration/serializer/PacketClassSerializer.java b/src/main/java/io/papermc/paper/configuration/serializer/PacketClassSerializer.java
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index 893ad5e7c2d32ccd64962d95d146bbd317c28ab8..3d73ea0e63c97b2b08e719b7be7af3894fb2d4e8 100644
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--- a/src/main/java/io/papermc/paper/configuration/serializer/PacketClassSerializer.java
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+++ b/src/main/java/io/papermc/paper/configuration/serializer/PacketClassSerializer.java
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@@ -5,6 +5,7 @@ import com.google.common.collect.ImmutableBiMap;
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import com.mojang.logging.LogUtils;
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import io.leangen.geantyref.TypeToken;
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import io.papermc.paper.configuration.serializer.collections.MapSerializer;
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+import io.papermc.paper.util.MappingEnvironment;
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import io.papermc.paper.util.ObfHelper;
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import net.minecraft.network.protocol.Packet;
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import org.checkerframework.checker.nullness.qual.Nullable;
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@@ -69,7 +70,7 @@ public final class PacketClassSerializer extends ScalarSerializer<Class<? extend
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@Override
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protected @Nullable Object serialize(final Class<? extends Packet<?>> packetClass, final Predicate<Class<?>> typeSupported) {
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final String name = packetClass.getName();
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- @Nullable String mojName = ObfHelper.INSTANCE.mappingsByMojangName() == null ? name : MOJANG_TO_OBF.inverse().get(name); // if the mappings are null, running on moj-mapped server
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+ @Nullable String mojName = ObfHelper.INSTANCE.mappingsByMojangName() == null || !MappingEnvironment.reobf() ? name : MOJANG_TO_OBF.inverse().get(name); // if the mappings are null, running on moj-mapped server
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if (mojName == null && MOJANG_TO_OBF.containsKey(name)) {
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mojName = name;
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}
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diff --git a/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/BytecodeModifyingURLClassLoader.java b/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/BytecodeModifyingURLClassLoader.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..1240c061c121e8d5eb9add4e5e21955ee6df9368
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/BytecodeModifyingURLClassLoader.java
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@@ -0,0 +1,187 @@
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+package io.papermc.paper.plugin.entrypoint.classloader;
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+
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+import io.papermc.paper.pluginremap.reflect.ReflectionRemapper;
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+import java.io.IOException;
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+import java.io.InputStream;
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+import java.io.UncheckedIOException;
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+import java.net.JarURLConnection;
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+import java.net.URI;
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+import java.net.URL;
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+import java.net.URLClassLoader;
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+import java.security.CodeSigner;
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+import java.security.CodeSource;
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+import java.util.Map;
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+import java.util.concurrent.ConcurrentHashMap;
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+import java.util.function.Function;
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+import java.util.jar.Attributes;
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+import java.util.jar.Manifest;
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+import org.checkerframework.checker.nullness.qual.Nullable;
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+import org.objectweb.asm.ClassReader;
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+import org.objectweb.asm.ClassVisitor;
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+import org.objectweb.asm.ClassWriter;
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+
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+import static java.util.Objects.requireNonNullElse;
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+
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+public final class BytecodeModifyingURLClassLoader extends URLClassLoader {
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+ static {
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+ ClassLoader.registerAsParallelCapable();
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+ }
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+
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+ private static final Object MISSING_MANIFEST = new Object();
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+
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+ private final Function<byte[], byte[]> modifier;
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+ private final Map<String, Object> manifests = new ConcurrentHashMap<>();
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+
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+ public BytecodeModifyingURLClassLoader(
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+ final URL[] urls,
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+ final ClassLoader parent,
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+ final Function<byte[], byte[]> modifier
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+ ) {
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+ super(urls, parent);
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+ this.modifier = modifier;
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+ }
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+
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+ public BytecodeModifyingURLClassLoader(
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+ final URL[] urls,
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+ final ClassLoader parent
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+ ) {
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+ this(urls, parent, bytes -> {
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+ final ClassReader classReader = new ClassReader(bytes);
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+ final ClassWriter classWriter = new ClassWriter(classReader, 0);
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+ final ClassVisitor visitor = ReflectionRemapper.visitor(classWriter);
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+ if (visitor == classWriter) {
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+ return bytes;
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+ }
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+ classReader.accept(visitor, 0);
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+ return classWriter.toByteArray();
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+ });
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+ }
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+
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+ @Override
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+ protected Class<?> findClass(final String name) throws ClassNotFoundException {
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+ final Class<?> result;
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+ final String path = name.replace('.', '/').concat(".class");
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+ final URL url = this.findResource(path);
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+ if (url != null) {
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+ try {
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+ result = this.defineClass(name, url);
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+ } catch (final IOException e) {
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+ throw new ClassNotFoundException(name, e);
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+ }
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+ } else {
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+ result = null;
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+ }
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+ if (result == null) {
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+ throw new ClassNotFoundException(name);
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+ }
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+ return result;
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+ }
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+
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+ private Class<?> defineClass(String name, URL url) throws IOException {
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+ int i = name.lastIndexOf('.');
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+ if (i != -1) {
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+ String pkgname = name.substring(0, i);
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+ // Check if package already loaded.
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+ final @Nullable Manifest man = this.manifestFor(url);
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+ final URL jarUrl = URI.create(jarName(url)).toURL();
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+ if (this.getAndVerifyPackage(pkgname, man, jarUrl) == null) {
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+ try {
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+ if (man != null) {
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+ this.definePackage(pkgname, man, jarUrl);
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+ } else {
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+ this.definePackage(pkgname, null, null, null, null, null, null, null);
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+ }
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+ } catch (IllegalArgumentException iae) {
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+ // parallel-capable class loaders: re-verify in case of a
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+ // race condition
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+ if (this.getAndVerifyPackage(pkgname, man, jarUrl) == null) {
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+ // Should never happen
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+ throw new AssertionError("Cannot find package " +
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+ pkgname);
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+ }
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+ }
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+ }
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+ }
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+ final byte[] bytes;
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+ try (final InputStream is = url.openStream()) {
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+ bytes = is.readAllBytes();
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+ }
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+
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+ final byte[] modified = this.modifier.apply(bytes);
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+
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+ final CodeSource cs = new CodeSource(url, (CodeSigner[]) null);
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+ return this.defineClass(name, modified, 0, modified.length, cs);
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+ }
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+
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+ private Package getAndVerifyPackage(
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+ String pkgname,
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+ Manifest man, URL url
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+ ) {
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+ Package pkg = getDefinedPackage(pkgname);
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+ if (pkg != null) {
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+ // Package found, so check package sealing.
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+ if (pkg.isSealed()) {
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+ // Verify that code source URL is the same.
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+ if (!pkg.isSealed(url)) {
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+ throw new SecurityException(
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+ "sealing violation: package " + pkgname + " is sealed");
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+ }
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+ } else {
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+ // Make sure we are not attempting to seal the package
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+ // at this code source URL.
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+ if ((man != null) && this.isSealed(pkgname, man)) {
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+ throw new SecurityException(
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+ "sealing violation: can't seal package " + pkgname +
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+ ": already loaded");
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+ }
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+ }
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+ }
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+ return pkg;
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+ }
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+
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+ private boolean isSealed(String name, Manifest man) {
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+ Attributes attr = man.getAttributes(name.replace('.', '/').concat("/"));
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+ String sealed = null;
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+ if (attr != null) {
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+ sealed = attr.getValue(Attributes.Name.SEALED);
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+ }
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+ if (sealed == null) {
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+ if ((attr = man.getMainAttributes()) != null) {
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+ sealed = attr.getValue(Attributes.Name.SEALED);
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+ }
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+ }
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+ return "true".equalsIgnoreCase(sealed);
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+ }
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+
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+ private @Nullable Manifest manifestFor(final URL url) throws IOException {
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+ Manifest man = null;
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+ if (url.getProtocol().equals("jar")) {
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+ try {
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+ final Object computedManifest = this.manifests.computeIfAbsent(jarName(url), $ -> {
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+ try {
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+ final Manifest m = ((JarURLConnection) url.openConnection()).getManifest();
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+ return requireNonNullElse(m, MISSING_MANIFEST);
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+ } catch (final IOException e) {
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+ throw new UncheckedIOException(e);
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+ }
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+ });
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+ if (computedManifest instanceof Manifest found) {
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+ man = found;
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+ }
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+ } catch (final UncheckedIOException e) {
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+ throw e.getCause();
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+ } catch (final IllegalArgumentException e) {
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+ throw new IOException(e);
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+ }
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+ }
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+ return man;
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+ }
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+
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+ private static String jarName(final URL sourceUrl) {
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+ final int exclamationIdx = sourceUrl.getPath().lastIndexOf('!');
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+ if (exclamationIdx != -1) {
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+ return sourceUrl.getPath().substring(0, exclamationIdx);
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+ }
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+ throw new IllegalArgumentException("Could not find jar for URL " + sourceUrl);
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/PaperClassloaderBytecodeModifier.java b/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/PaperClassloaderBytecodeModifier.java
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index f9a2c55a354c877749db3f92956de802ae575788..39182cdd17473da0123dc7172dce507eab29fedc 100644
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--- a/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/PaperClassloaderBytecodeModifier.java
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+++ b/src/main/java/io/papermc/paper/plugin/entrypoint/classloader/PaperClassloaderBytecodeModifier.java
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@@ -1,12 +1,17 @@
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package io.papermc.paper.plugin.entrypoint.classloader;
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import io.papermc.paper.plugin.configuration.PluginMeta;
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+import org.objectweb.asm.ClassReader;
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+import org.objectweb.asm.ClassWriter;
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// Stub, implement in future.
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public class PaperClassloaderBytecodeModifier implements ClassloaderBytecodeModifier {
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@Override
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public byte[] modify(PluginMeta configuration, byte[] bytecode) {
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- return bytecode;
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+ ClassReader classReader = new ClassReader(bytecode);
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+ ClassWriter classWriter = new ClassWriter(classReader, 0);
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+ classReader.accept(io.papermc.paper.pluginremap.reflect.ReflectionRemapper.visitor(classWriter), 0);
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+ return classWriter.toByteArray();
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}
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}
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diff --git a/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java b/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java
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index f576060c8fe872772bbafe2016fc9b83a3c095f1..f9d4b33050a6fe8c2dabe8e5eec075d95dc513e0 100644
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--- a/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java
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+++ b/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java
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@@ -2,12 +2,12 @@ package io.papermc.paper.plugin.loader;
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import io.papermc.paper.plugin.PluginInitializerManager;
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import io.papermc.paper.plugin.bootstrap.PluginProviderContext;
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+import io.papermc.paper.plugin.entrypoint.classloader.BytecodeModifyingURLClassLoader;
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+import io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader;
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import io.papermc.paper.plugin.loader.library.ClassPathLibrary;
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import io.papermc.paper.plugin.loader.library.PaperLibraryStore;
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-import io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader;
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import io.papermc.paper.plugin.provider.configuration.PaperPluginMeta;
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-import org.jetbrains.annotations.NotNull;
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-
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+import io.papermc.paper.util.MappingEnvironment;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import java.net.URL;
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@@ -17,6 +17,7 @@ import java.util.ArrayList;
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import java.util.List;
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import java.util.jar.JarFile;
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import java.util.logging.Logger;
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+import org.jetbrains.annotations.NotNull;
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public class PaperClasspathBuilder implements PluginClasspathBuilder {
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@@ -60,7 +61,10 @@ public class PaperClasspathBuilder implements PluginClasspathBuilder {
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}
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try {
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- return new PaperPluginClassLoader(logger, source, jarFile, configuration, this.getClass().getClassLoader(), new URLClassLoader(urls, getClass().getClassLoader()));
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+ final URLClassLoader libraryLoader = MappingEnvironment.DISABLE_PLUGIN_REWRITING
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+ ? new URLClassLoader(urls, this.getClass().getClassLoader())
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+ : new BytecodeModifyingURLClassLoader(urls, this.getClass().getClassLoader());
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+ return new PaperPluginClassLoader(logger, source, jarFile, configuration, this.getClass().getClassLoader(), libraryLoader);
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} catch (IOException exception) {
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throw new RuntimeException(exception);
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}
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diff --git a/src/main/java/io/papermc/paper/plugin/provider/type/spigot/SpigotPluginProviderFactory.java b/src/main/java/io/papermc/paper/plugin/provider/type/spigot/SpigotPluginProviderFactory.java
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index bdd9bc8a414719b9f1d6f01f90539ddb8603a878..fdb52ad85cfaa1d53aadcad72cec3d3c8c12c058 100644
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--- a/src/main/java/io/papermc/paper/plugin/provider/type/spigot/SpigotPluginProviderFactory.java
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+++ b/src/main/java/io/papermc/paper/plugin/provider/type/spigot/SpigotPluginProviderFactory.java
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@@ -1,9 +1,12 @@
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package io.papermc.paper.plugin.provider.type.spigot;
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+import io.papermc.paper.plugin.entrypoint.classloader.BytecodeModifyingURLClassLoader;
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import io.papermc.paper.plugin.provider.configuration.serializer.constraints.PluginConfigConstraints;
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import io.papermc.paper.plugin.provider.type.PluginTypeFactory;
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+import io.papermc.paper.util.MappingEnvironment;
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import org.bukkit.plugin.InvalidDescriptionException;
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import org.bukkit.plugin.PluginDescriptionFile;
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+import org.bukkit.plugin.java.LibraryLoader;
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import org.yaml.snakeyaml.error.YAMLException;
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import java.io.IOException;
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@@ -15,6 +18,12 @@ import java.util.jar.JarFile;
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class SpigotPluginProviderFactory implements PluginTypeFactory<SpigotPluginProvider, PluginDescriptionFile> {
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+ static {
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+ if (!MappingEnvironment.DISABLE_PLUGIN_REWRITING) {
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+ LibraryLoader.LIBRARY_LOADER_FACTORY = BytecodeModifyingURLClassLoader::new;
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+ }
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+ }
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+
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@Override
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public SpigotPluginProvider build(JarFile file, PluginDescriptionFile configuration, Path source) throws InvalidDescriptionException {
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// Copied from SimplePluginManager#loadPlugins
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diff --git a/src/main/java/io/papermc/paper/pluginremap/reflect/PaperReflection.java b/src/main/java/io/papermc/paper/pluginremap/reflect/PaperReflection.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..c653d1f5af8b407cfba715e6027dbb695046892a
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/pluginremap/reflect/PaperReflection.java
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@@ -0,0 +1,212 @@
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+package io.papermc.paper.pluginremap.reflect;
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+
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+import com.mojang.logging.LogUtils;
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+import io.papermc.paper.util.MappingEnvironment;
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+import io.papermc.paper.util.ObfHelper;
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+import io.papermc.reflectionrewriter.runtime.AbstractDefaultRulesReflectionProxy;
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+import io.papermc.reflectionrewriter.runtime.DefineClassReflectionProxy;
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+import java.lang.invoke.MethodHandles;
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+import java.nio.ByteBuffer;
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+import java.security.CodeSource;
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+import java.security.ProtectionDomain;
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+import java.util.Map;
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+import java.util.Objects;
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+import java.util.stream.Collectors;
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+import org.checkerframework.checker.nullness.qual.NonNull;
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+import org.checkerframework.checker.nullness.qual.Nullable;
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+import org.checkerframework.framework.qual.DefaultQualifier;
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+import org.objectweb.asm.ClassReader;
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+import org.objectweb.asm.ClassWriter;
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+import org.slf4j.Logger;
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+
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+// todo proper inheritance handling
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+@SuppressWarnings("unused")
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+@DefaultQualifier(NonNull.class)
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+public final class PaperReflection extends AbstractDefaultRulesReflectionProxy implements DefineClassReflectionProxy {
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+ // concat to avoid being rewritten by shadow
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+ private static final Logger LOGGER = LogUtils.getLogger();
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+ private static final String CB_PACKAGE_PREFIX = "org.bukkit.".concat("craftbukkit.");
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+ private static final String LEGACY_CB_PACKAGE_PREFIX = "org.bukkit.".concat("craftbukkit.") + MappingEnvironment.LEGACY_CB_VERSION + ".";
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+
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+ private final DefineClassReflectionProxy defineClassProxy;
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+ private final Map<String, ObfHelper.ClassMapping> mappingsByMojangName;
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+ private final Map<String, ObfHelper.ClassMapping> mappingsByObfName;
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+ // Reflection does not care about method return values, so this map removes the return value descriptor from the key
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+ private final Map<String, Map<String, String>> strippedMethodMappings;
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+
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+ PaperReflection() {
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+ this.defineClassProxy = DefineClassReflectionProxy.create(PaperReflection::processClass);
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+ if (!MappingEnvironment.hasMappings()) {
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+ this.mappingsByMojangName = Map.of();
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+ this.mappingsByObfName = Map.of();
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+ this.strippedMethodMappings = Map.of();
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+ return;
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+ }
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+ final ObfHelper obfHelper = ObfHelper.INSTANCE;
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+ this.mappingsByMojangName = Objects.requireNonNull(obfHelper.mappingsByMojangName(), "mappingsByMojangName");
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+ this.mappingsByObfName = Objects.requireNonNull(obfHelper.mappingsByObfName(), "mappingsByObfName");
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+ this.strippedMethodMappings = this.mappingsByMojangName.entrySet().stream().collect(Collectors.toUnmodifiableMap(
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+ Map.Entry::getKey,
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+ entry -> entry.getValue().strippedMethods()
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+ ));
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+ }
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+
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+ @Override
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+ protected String mapClassName(final String name) {
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+ final ObfHelper.@Nullable ClassMapping mapping = this.mappingsByObfName.get(name);
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+ return mapping != null ? mapping.mojangName() : removeCraftBukkitRelocation(name);
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+ }
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+
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+ @Override
|
|
+ protected String mapDeclaredMethodName(final Class<?> clazz, final String name, final Class<?>... parameterTypes) {
|
|
+ final @Nullable Map<String, String> mapping = this.strippedMethodMappings.get(clazz.getName());
|
|
+ if (mapping == null) {
|
|
+ return name;
|
|
+ }
|
|
+ return mapping.getOrDefault(strippedMethodKey(name, parameterTypes), name);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ protected String mapMethodName(final Class<?> clazz, final String name, final Class<?>... parameterTypes) {
|
|
+ final @Nullable String mapped = this.findMappedMethodName(clazz, name, parameterTypes);
|
|
+ return mapped != null ? mapped : name;
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ protected String mapDeclaredFieldName(final Class<?> clazz, final String name) {
|
|
+ final ObfHelper.@Nullable ClassMapping mapping = this.mappingsByMojangName.get(clazz.getName());
|
|
+ if (mapping == null) {
|
|
+ return name;
|
|
+ }
|
|
+ return mapping.fieldsByObf().getOrDefault(name, name);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ protected String mapFieldName(final Class<?> clazz, final String name) {
|
|
+ final @Nullable String mapped = this.findMappedFieldName(clazz, name);
|
|
+ return mapped != null ? mapped : name;
|
|
+ }
|
|
+
|
|
+ private @Nullable String findMappedMethodName(final Class<?> clazz, final String name, final Class<?>... parameterTypes) {
|
|
+ final Map<String, String> map = this.strippedMethodMappings.get(clazz.getName());
|
|
+ @Nullable String mapped = null;
|
|
+ if (map != null) {
|
|
+ mapped = map.get(strippedMethodKey(name, parameterTypes));
|
|
+ if (mapped != null) {
|
|
+ return mapped;
|
|
+ }
|
|
+ }
|
|
+ // JVM checks super before interfaces
|
|
+ final Class<?> superClass = clazz.getSuperclass();
|
|
+ if (superClass != null) {
|
|
+ mapped = this.findMappedMethodName(superClass, name, parameterTypes);
|
|
+ }
|
|
+ if (mapped == null) {
|
|
+ for (final Class<?> i : clazz.getInterfaces()) {
|
|
+ mapped = this.findMappedMethodName(i, name, parameterTypes);
|
|
+ if (mapped != null) {
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ return mapped;
|
|
+ }
|
|
+
|
|
+ private @Nullable String findMappedFieldName(final Class<?> clazz, final String name) {
|
|
+ final ObfHelper.ClassMapping mapping = this.mappingsByMojangName.get(clazz.getName());
|
|
+ @Nullable String mapped = null;
|
|
+ if (mapping != null) {
|
|
+ mapped = mapping.fieldsByObf().get(name);
|
|
+ if (mapped != null) {
|
|
+ return mapped;
|
|
+ }
|
|
+ }
|
|
+ // The JVM checks super before interfaces
|
|
+ final Class<?> superClass = clazz.getSuperclass();
|
|
+ if (superClass != null) {
|
|
+ mapped = this.findMappedFieldName(superClass, name);
|
|
+ }
|
|
+ if (mapped == null) {
|
|
+ for (final Class<?> i : clazz.getInterfaces()) {
|
|
+ mapped = this.findMappedFieldName(i, name);
|
|
+ if (mapped != null) {
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ return mapped;
|
|
+ }
|
|
+
|
|
+ private static String strippedMethodKey(final String methodName, final Class<?>... parameterTypes) {
|
|
+ return methodName + parameterDescriptor(parameterTypes);
|
|
+ }
|
|
+
|
|
+ private static String parameterDescriptor(final Class<?>... parameterTypes) {
|
|
+ final StringBuilder builder = new StringBuilder();
|
|
+ builder.append('(');
|
|
+ for (final Class<?> parameterType : parameterTypes) {
|
|
+ builder.append(parameterType.descriptorString());
|
|
+ }
|
|
+ builder.append(')');
|
|
+ return builder.toString();
|
|
+ }
|
|
+
|
|
+ private static String removeCraftBukkitRelocation(final String name) {
|
|
+ if (MappingEnvironment.hasMappings()) {
|
|
+ // Relocation is applied in reobf, and when mappings are present they handle the relocation
|
|
+ return name;
|
|
+ }
|
|
+ if (name.startsWith(LEGACY_CB_PACKAGE_PREFIX)) {
|
|
+ return CB_PACKAGE_PREFIX + name.substring(LEGACY_CB_PACKAGE_PREFIX.length());
|
|
+ }
|
|
+ return name;
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final Object loader, final byte[] b, final int off, final int len) throws ClassFormatError {
|
|
+ return this.defineClassProxy.defineClass(loader, b, off, len);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final Object loader, final String name, final byte[] b, final int off, final int len) throws ClassFormatError {
|
|
+ return this.defineClassProxy.defineClass(loader, name, b, off, len);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final Object loader, final @Nullable String name, final byte[] b, final int off, final int len, final @Nullable ProtectionDomain protectionDomain) throws ClassFormatError {
|
|
+ return this.defineClassProxy.defineClass(loader, name, b, off, len, protectionDomain);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final Object loader, final String name, final ByteBuffer b, final ProtectionDomain protectionDomain) throws ClassFormatError {
|
|
+ return this.defineClassProxy.defineClass(loader, name, b, protectionDomain);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final Object secureLoader, final String name, final byte[] b, final int off, final int len, final CodeSource cs) {
|
|
+ return this.defineClassProxy.defineClass(secureLoader, name, b, off, len, cs);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final Object secureLoader, final String name, final ByteBuffer b, final CodeSource cs) {
|
|
+ return this.defineClassProxy.defineClass(secureLoader, name, b, cs);
|
|
+ }
|
|
+
|
|
+ @Override
|
|
+ public Class<?> defineClass(final MethodHandles.Lookup lookup, final byte[] bytes) throws IllegalAccessException {
|
|
+ return this.defineClassProxy.defineClass(lookup, bytes);
|
|
+ }
|
|
+
|
|
+ // todo apply bytecode remap here as well
|
|
+ private static byte[] processClass(final byte[] bytes) {
|
|
+ try {
|
|
+ final ClassReader reader = new ClassReader(bytes);
|
|
+ final ClassWriter writer = new ClassWriter(reader, 0);
|
|
+ reader.accept(ReflectionRemapper.visitor(writer), 0);
|
|
+ return writer.toByteArray();
|
|
+ } catch (final Exception ex) {
|
|
+ LOGGER.warn("Failed to process class bytes", ex);
|
|
+ return bytes;
|
|
+ }
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/io/papermc/paper/pluginremap/reflect/ReflectionRemapper.java b/src/main/java/io/papermc/paper/pluginremap/reflect/ReflectionRemapper.java
|
|
new file mode 100644
|
|
index 0000000000000000000000000000000000000000..5fa5868e82d1f00498d0c5771369e1718b2df4ee
|
|
--- /dev/null
|
|
+++ b/src/main/java/io/papermc/paper/pluginremap/reflect/ReflectionRemapper.java
|
|
@@ -0,0 +1,54 @@
|
|
+package io.papermc.paper.pluginremap.reflect;
|
|
+
|
|
+import io.papermc.asm.ClassInfoProvider;
|
|
+import io.papermc.asm.RewriteRuleVisitorFactory;
|
|
+import io.papermc.paper.util.MappingEnvironment;
|
|
+import io.papermc.reflectionrewriter.BaseReflectionRules;
|
|
+import io.papermc.reflectionrewriter.DefineClassRule;
|
|
+import io.papermc.reflectionrewriter.proxygenerator.ProxyGenerator;
|
|
+import java.lang.invoke.MethodHandles;
|
|
+import java.lang.reflect.Method;
|
|
+import org.checkerframework.checker.nullness.qual.NonNull;
|
|
+import org.checkerframework.framework.qual.DefaultQualifier;
|
|
+import org.objectweb.asm.ClassVisitor;
|
|
+import org.objectweb.asm.Opcodes;
|
|
+
|
|
+@DefaultQualifier(NonNull.class)
|
|
+public final class ReflectionRemapper {
|
|
+ private static final String PAPER_REFLECTION_HOLDER = "io.papermc.paper.pluginremap.reflect.PaperReflectionHolder";
|
|
+ private static final String PAPER_REFLECTION_HOLDER_DESC = PAPER_REFLECTION_HOLDER.replace('.', '/');
|
|
+ private static final RewriteRuleVisitorFactory VISITOR_FACTORY = RewriteRuleVisitorFactory.create(
|
|
+ Opcodes.ASM9,
|
|
+ chain -> chain.then(new BaseReflectionRules(PAPER_REFLECTION_HOLDER).rules())
|
|
+ .then(DefineClassRule.create(PAPER_REFLECTION_HOLDER_DESC, true)),
|
|
+ ClassInfoProvider.basic()
|
|
+ );
|
|
+
|
|
+ static {
|
|
+ if (!MappingEnvironment.reobf()) {
|
|
+ setupProxy();
|
|
+ }
|
|
+ }
|
|
+
|
|
+ private ReflectionRemapper() {
|
|
+ }
|
|
+
|
|
+ public static ClassVisitor visitor(final ClassVisitor parent) {
|
|
+ if (MappingEnvironment.reobf()) {
|
|
+ return parent;
|
|
+ }
|
|
+ return VISITOR_FACTORY.createVisitor(parent);
|
|
+ }
|
|
+
|
|
+ private static void setupProxy() {
|
|
+ try {
|
|
+ final byte[] bytes = ProxyGenerator.generateProxy(PaperReflection.class, PAPER_REFLECTION_HOLDER_DESC);
|
|
+ final MethodHandles.Lookup lookup = MethodHandles.lookup();
|
|
+ final Class<?> generated = lookup.defineClass(bytes);
|
|
+ final Method init = generated.getDeclaredMethod("init", PaperReflection.class);
|
|
+ init.invoke(null, new PaperReflection());
|
|
+ } catch (final ReflectiveOperationException ex) {
|
|
+ throw new RuntimeException(ex);
|
|
+ }
|
|
+ }
|
|
+}
|
|
diff --git a/src/main/java/io/papermc/paper/util/MappingEnvironment.java b/src/main/java/io/papermc/paper/util/MappingEnvironment.java
|
|
index 8e4229634d41a42b3d93948eebb77def7c0c72b1..4d57213c9917ea965bfe06a5d242e61422457ee2 100644
|
|
--- a/src/main/java/io/papermc/paper/util/MappingEnvironment.java
|
|
+++ b/src/main/java/io/papermc/paper/util/MappingEnvironment.java
|
|
@@ -10,6 +10,8 @@ import org.checkerframework.framework.qual.DefaultQualifier;
|
|
|
|
@DefaultQualifier(NonNull.class)
|
|
public final class MappingEnvironment {
|
|
+ public static final boolean DISABLE_PLUGIN_REWRITING = Boolean.getBoolean("paper.disable-plugin-rewriting");
|
|
+ public static final String LEGACY_CB_VERSION = "v1_20_R4";
|
|
private static final @Nullable String MAPPINGS_HASH = readMappingsHash();
|
|
private static final boolean REOBF = checkReobf();
|
|
|
|
diff --git a/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
|
|
index 242811578a786e3807a1a7019d472d5a68f87116..0b65fdf53124f3dd042b2363b1b8df8e1ca7de00 100644
|
|
--- a/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
|
|
+++ b/src/main/java/io/papermc/paper/util/StacktraceDeobfuscator.java
|
|
@@ -29,6 +29,9 @@ public enum StacktraceDeobfuscator {
|
|
});
|
|
|
|
public void deobfuscateThrowable(final Throwable throwable) {
|
|
+ if (!MappingEnvironment.reobf()) {
|
|
+ return;
|
|
+ }
|
|
if (GlobalConfiguration.get() != null && !GlobalConfiguration.get().logging.deobfuscateStacktraces) { // handle null as true
|
|
return;
|
|
}
|
|
@@ -44,6 +47,9 @@ public enum StacktraceDeobfuscator {
|
|
}
|
|
|
|
public StackTraceElement[] deobfuscateStacktrace(final StackTraceElement[] traceElements) {
|
|
+ if (!MappingEnvironment.reobf()) {
|
|
+ return traceElements;
|
|
+ }
|
|
if (GlobalConfiguration.get() != null && !GlobalConfiguration.get().logging.deobfuscateStacktraces) { // handle null as true
|
|
return traceElements;
|
|
}
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/util/Commodore.java b/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
|
|
index c8c40052d0bb7791297a215ba18fb093fbfda7b6..e8bdc9f97cc506ca8509480ea0c07facc778df8d 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/util/Commodore.java
|
|
@@ -82,36 +82,26 @@ public class Commodore {
|
|
private static final Map<String, RerouteMethodData> METHOD_REROUTE = Commodore.createReroutes(MethodRerouting.class);
|
|
|
|
// Paper start - Plugin rewrites
|
|
- private static final Map<String, String> SEARCH_AND_REMOVE = initReplacementsMap();
|
|
- private static Map<String, String> initReplacementsMap() {
|
|
- Map<String, String> getAndRemove = new HashMap<>();
|
|
- // Be wary of maven shade's relocations
|
|
-
|
|
- final java.util.jar.Manifest manifest = io.papermc.paper.util.JarManifests.manifest(Commodore.class);
|
|
- if (Boolean.getBoolean( "debug.rewriteForIde") && manifest != null)
|
|
- {
|
|
- // unversion incoming calls for pre-relocate debug work
|
|
- final String NMS_REVISION_PACKAGE = "v" + manifest.getMainAttributes().getValue("CraftBukkit-Package-Version") + "/";
|
|
-
|
|
- getAndRemove.put("org/bukkit/".concat("craftbukkit/" + NMS_REVISION_PACKAGE), NMS_REVISION_PACKAGE);
|
|
+ private static final String CB_PACKAGE_PREFIX = "org/bukkit/".concat("craftbukkit/");
|
|
+ private static final String LEGACY_CB_PACKAGE_PREFIX = CB_PACKAGE_PREFIX + io.papermc.paper.util.MappingEnvironment.LEGACY_CB_VERSION + "/";
|
|
+ private static String runtimeCbPkgPrefix() {
|
|
+ if (io.papermc.paper.util.MappingEnvironment.reobf()) {
|
|
+ return LEGACY_CB_PACKAGE_PREFIX;
|
|
}
|
|
-
|
|
- return getAndRemove;
|
|
+ return CB_PACKAGE_PREFIX;
|
|
}
|
|
|
|
@Nonnull
|
|
private static String getOriginalOrRewrite(@Nonnull String original)
|
|
{
|
|
- String rewrite = null;
|
|
- for ( Map.Entry<String, String> entry : SEARCH_AND_REMOVE.entrySet() )
|
|
- {
|
|
- if ( original.contains( entry.getKey() ) )
|
|
- {
|
|
- rewrite = original.replace( entry.getValue(), "" );
|
|
+ // Relocation is applied in reobf, and when mappings are present they handle the relocation
|
|
+ if (!io.papermc.paper.util.MappingEnvironment.reobf() && !io.papermc.paper.util.MappingEnvironment.hasMappings()) {
|
|
+ if (original.contains(LEGACY_CB_PACKAGE_PREFIX)) {
|
|
+ original = original.replace(LEGACY_CB_PACKAGE_PREFIX, CB_PACKAGE_PREFIX);
|
|
}
|
|
}
|
|
|
|
- return rewrite != null ? rewrite : original;
|
|
+ return original;
|
|
}
|
|
// Paper end - Plugin rewrites
|
|
|
|
@@ -182,7 +172,7 @@ public class Commodore {
|
|
ClassReader cr = new ClassReader(b);
|
|
ClassWriter cw = new ClassWriter(cr, 0);
|
|
|
|
- cr.accept(new ClassRemapper(new ClassVisitor(Opcodes.ASM9, cw) {
|
|
+ cr.accept(new ClassRemapper(new ClassVisitor(Opcodes.ASM9, io.papermc.paper.pluginremap.reflect.ReflectionRemapper.visitor(cw)) { // Paper
|
|
final Set<RerouteMethodData> rerouteMethodData = new HashSet<>();
|
|
String className;
|
|
boolean isInterface;
|
|
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
|
|
index 297767f64c1a7c01cffd6d78e71b60746622f22e..d551c9d898d8b5128dfef84d206396c84072abe4 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
|
|
@@ -361,7 +361,7 @@ public final class CraftMagicNumbers implements UnsafeValues {
|
|
throw new InvalidPluginException("Plugin API version " + pdf.getAPIVersion() + " is lower than the minimum allowed version. Please update or replace it.");
|
|
}
|
|
|
|
- if (toCheck.isOlderThan(ApiVersion.FLATTENING)) {
|
|
+ if (!io.papermc.paper.util.MappingEnvironment.DISABLE_PLUGIN_REWRITING && toCheck.isOlderThan(ApiVersion.FLATTENING)) { // Paper
|
|
CraftLegacy.init();
|
|
}
|
|
|
|
@@ -376,6 +376,7 @@ public final class CraftMagicNumbers implements UnsafeValues {
|
|
|
|
@Override
|
|
public byte[] processClass(PluginDescriptionFile pdf, String path, byte[] clazz) {
|
|
+ if (io.papermc.paper.util.MappingEnvironment.DISABLE_PLUGIN_REWRITING) return clazz; // Paper
|
|
try {
|
|
clazz = Commodore.convert(clazz, pdf.getName(), ApiVersion.getOrCreateVersion(pdf.getAPIVersion()), ((CraftServer) Bukkit.getServer()).activeCompatibilities);
|
|
} catch (Exception ex) {
|