From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jason Penilla <11360596+jpenilla@users.noreply.github.com> Date: Sat, 29 Oct 2022 15:22:32 -0700 Subject: [PATCH] Plugin remapping Co-authored-by: Nassim Jahnke diff --git a/build.gradle.kts b/build.gradle.kts index a2bb659ae3a502d4c181d1ccbd15eefc38e4823b..8350fc099b68918fb03a21b6a5047ceee72dcbb4 100644 --- a/build.gradle.kts +++ b/build.gradle.kts @@ -46,6 +46,7 @@ dependencies { testImplementation("org.ow2.asm:asm-tree:9.7") testImplementation("org.junit-pioneer:junit-pioneer:2.2.0") // Paper - CartesianTest implementation("net.neoforged:srgutils:1.0.9") // Paper - mappings handling + implementation("net.neoforged:AutoRenamingTool:2.0.3") // Paper - remap plugins } paperweight { @@ -164,20 +165,41 @@ val runtimeClasspathWithoutVanillaServer = configurations.runtimeClasspath.flatM runtime.filterNot { it.asFile.absolutePath == vanilla } } -tasks.registerRunTask("runServerJar") { - description = "Spin up a test server from the serverJar archiveFile" - classpath(tasks.serverJar.flatMap { it.archiveFile }) +tasks.registerRunTask("runServer") { + description = "Spin up a test server from the Mojang mapped server jar" + classpath(tasks.includeMappings.flatMap { it.outputJar }) classpath(runtimeClasspathWithoutVanillaServer) } -tasks.registerRunTask("runReobf") { +tasks.registerRunTask("runReobfServer") { description = "Spin up a test server from the reobfJar output jar" classpath(tasks.reobfJar.flatMap { it.outputJar }) classpath(runtimeClasspathWithoutVanillaServer) } -tasks.registerRunTask("runDev") { - description = "Spin up a non-relocated Mojang-mapped test server" +tasks.registerRunTask("runDevServer") { + description = "Spin up a test server without assembling a jar" classpath(sourceSets.main.map { it.runtimeClasspath }) jvmArgs("-DPaper.pushPaperAssetsRoot=true") } + +tasks.registerRunTask("runBundler") { + description = "Spin up a test server from the Mojang mapped bundler jar" + classpath(rootProject.tasks.named("createMojmapBundlerJar").flatMap { it.outputZip }) + mainClass.set(null as String?) +} +tasks.registerRunTask("runReobfBundler") { + description = "Spin up a test server from the reobf bundler jar" + classpath(rootProject.tasks.named("createReobfBundlerJar").flatMap { it.outputZip }) + mainClass.set(null as String?) +} +tasks.registerRunTask("runPaperclip") { + description = "Spin up a test server from the Mojang mapped Paperclip jar" + classpath(rootProject.tasks.named("createMojmapPaperclipJar").flatMap { it.outputZip }) + mainClass.set(null as String?) +} +tasks.registerRunTask("runReobfPaperclip") { + description = "Spin up a test server from the reobf Paperclip jar" + classpath(rootProject.tasks.named("createReobfPaperclipJar").flatMap { it.outputZip }) + mainClass.set(null as String?) +} diff --git a/src/main/java/io/papermc/paper/plugin/PluginInitializerManager.java b/src/main/java/io/papermc/paper/plugin/PluginInitializerManager.java index 708e5bb9bbf0476fcc2c4b92c6830b094703b43e..49d8e207795997e5deaf830eb971067f84bfc791 100644 --- a/src/main/java/io/papermc/paper/plugin/PluginInitializerManager.java +++ b/src/main/java/io/papermc/paper/plugin/PluginInitializerManager.java @@ -6,10 +6,12 @@ import io.papermc.paper.plugin.entrypoint.Entrypoint; import io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler; import io.papermc.paper.plugin.provider.PluginProvider; import io.papermc.paper.plugin.provider.type.paper.PaperPluginParent; +import io.papermc.paper.pluginremap.PluginRemapper; +import java.util.function.Function; import joptsimple.OptionSet; import net.minecraft.server.dedicated.DedicatedServer; import org.bukkit.configuration.file.YamlConfiguration; -import org.bukkit.craftbukkit.CraftServer; +import org.bukkit.plugin.java.LibraryLoader; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; import org.slf4j.Logger; @@ -25,10 +27,15 @@ public class PluginInitializerManager { private static PluginInitializerManager impl; private final Path pluginDirectory; private final Path updateDirectory; + public final io.papermc.paper.pluginremap.@org.checkerframework.checker.nullness.qual.MonotonicNonNull PluginRemapper pluginRemapper; // Paper PluginInitializerManager(final Path pluginDirectory, final Path updateDirectory) { this.pluginDirectory = pluginDirectory; this.updateDirectory = updateDirectory; + this.pluginRemapper = Boolean.getBoolean("paper.disablePluginRemapping") + ? null + : PluginRemapper.create(pluginDirectory); + LibraryLoader.REMAPPER = this.pluginRemapper == null ? Function.identity() : this.pluginRemapper::remapLibraries; } private static PluginInitializerManager parse(@NotNull final OptionSet minecraftOptionSet) throws Exception { @@ -96,6 +103,7 @@ public class PluginInitializerManager { public static void load(OptionSet optionSet) throws Exception { // We have to load the bukkit configuration inorder to get the update folder location. io.papermc.paper.plugin.PluginInitializerManager pluginSystem = io.papermc.paper.plugin.PluginInitializerManager.init(optionSet); + if (pluginSystem.pluginRemapper != null) pluginSystem.pluginRemapper.loadingPlugins(); // Register the default plugin directory io.papermc.paper.plugin.util.EntrypointUtil.registerProvidersFromSource(io.papermc.paper.plugin.provider.source.DirectoryProviderSource.INSTANCE, pluginSystem.pluginDirectoryPath()); diff --git a/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java b/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java index f38ecd7f65dc24e4a3f0bc675e3730287ac353f1..f576060c8fe872772bbafe2016fc9b83a3c095f1 100644 --- a/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java +++ b/src/main/java/io/papermc/paper/plugin/loader/PaperClasspathBuilder.java @@ -1,5 +1,6 @@ package io.papermc.paper.plugin.loader; +import io.papermc.paper.plugin.PluginInitializerManager; import io.papermc.paper.plugin.bootstrap.PluginProviderContext; import io.papermc.paper.plugin.loader.library.ClassPathLibrary; import io.papermc.paper.plugin.loader.library.PaperLibraryStore; @@ -45,9 +46,12 @@ public class PaperClasspathBuilder implements PluginClasspathBuilder { } List paths = paperLibraryStore.getPaths(); + if (PluginInitializerManager.instance().pluginRemapper != null) { + paths = PluginInitializerManager.instance().pluginRemapper.remapLibraries(paths); + } URL[] urls = new URL[paths.size()]; for (int i = 0; i < paths.size(); i++) { - Path path = paperLibraryStore.getPaths().get(i); + Path path = paths.get(i); try { urls[i] = path.toUri().toURL(); } catch (MalformedURLException e) { diff --git a/src/main/java/io/papermc/paper/plugin/provider/source/DirectoryProviderSource.java b/src/main/java/io/papermc/paper/plugin/provider/source/DirectoryProviderSource.java index 226f457db6c1461c943c157b2b91e7450abc9dc6..0846d3a904e470ae1920c5c8be3df9c5dfc3de27 100644 --- a/src/main/java/io/papermc/paper/plugin/provider/source/DirectoryProviderSource.java +++ b/src/main/java/io/papermc/paper/plugin/provider/source/DirectoryProviderSource.java @@ -17,7 +17,7 @@ import org.slf4j.Logger; public class DirectoryProviderSource implements ProviderSource> { public static final DirectoryProviderSource INSTANCE = new DirectoryProviderSource(); - private static final FileProviderSource FILE_PROVIDER_SOURCE = new FileProviderSource("Directory '%s'"::formatted); + private static final FileProviderSource FILE_PROVIDER_SOURCE = new FileProviderSource("Directory '%s'"::formatted, false); // Paper - Remap plugins private static final Logger LOGGER = LogUtils.getClassLogger(); @Override @@ -37,6 +37,11 @@ public class DirectoryProviderSource implements ProviderSource> LOGGER.error("Error preparing plugin context: " + e.getMessage(), e); } }); + // Paper start - Remap plugins + if (io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper != null) { + return io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper.rewritePluginDirectory(files); + } + // Paper end - Remap plugins return files; } diff --git a/src/main/java/io/papermc/paper/plugin/provider/source/FileProviderSource.java b/src/main/java/io/papermc/paper/plugin/provider/source/FileProviderSource.java index 5b58df8df7efca0f67e3a14dd71051dfd7a26079..6b8ed8a0baaf4a57d20e57cec3400af5561ddd79 100644 --- a/src/main/java/io/papermc/paper/plugin/provider/source/FileProviderSource.java +++ b/src/main/java/io/papermc/paper/plugin/provider/source/FileProviderSource.java @@ -24,9 +24,15 @@ import java.util.jar.JarFile; public class FileProviderSource implements ProviderSource { private final Function contextChecker; + private final boolean applyRemap; - public FileProviderSource(Function contextChecker) { + public FileProviderSource(Function contextChecker, boolean applyRemap) { this.contextChecker = contextChecker; + this.applyRemap = applyRemap; + } + + public FileProviderSource(Function contextChecker) { + this(contextChecker, true); } @Override @@ -50,6 +56,11 @@ public class FileProviderSource implements ProviderSource { } catch (Exception exception) { throw new RuntimeException(source + " failed to update!", exception); } + // Paper start - Remap plugins + if (this.applyRemap && io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper != null) { + context = io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper.rewritePlugin(context); + } + // Paper end - Remap plugins return context; } diff --git a/src/main/java/io/papermc/paper/plugin/provider/source/PluginFlagProviderSource.java b/src/main/java/io/papermc/paper/plugin/provider/source/PluginFlagProviderSource.java index ac55ae0e30119556f01e2e36c20fc63a111fae5f..c2b60c74513544e5d96110c7c3ff80e8f1b686d1 100644 --- a/src/main/java/io/papermc/paper/plugin/provider/source/PluginFlagProviderSource.java +++ b/src/main/java/io/papermc/paper/plugin/provider/source/PluginFlagProviderSource.java @@ -14,7 +14,7 @@ import java.util.List; public class PluginFlagProviderSource implements ProviderSource, List> { public static final PluginFlagProviderSource INSTANCE = new PluginFlagProviderSource(); - private static final FileProviderSource FILE_PROVIDER_SOURCE = new FileProviderSource("File '%s' specified through 'add-plugin' argument"::formatted); + private static final FileProviderSource FILE_PROVIDER_SOURCE = new FileProviderSource("File '%s' specified through 'add-plugin' argument"::formatted, false); private static final Logger LOGGER = LogUtils.getClassLogger(); @Override @@ -27,6 +27,11 @@ public class PluginFlagProviderSource implements ProviderSource, List LOGGER.error("Error preparing plugin context: " + e.getMessage(), e); } } + // Paper start - Remap plugins + if (io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper != null && !files.isEmpty()) { + return io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper.rewriteExtraPlugins(files); + } + // Paper end - Remap plugins return files; } diff --git a/src/main/java/io/papermc/paper/plugin/provider/type/PluginFileType.java b/src/main/java/io/papermc/paper/plugin/provider/type/PluginFileType.java index 87128685015d550440a798028f50be24bc755f6c..8d0da6e46d4eb5eb05c3144510c4ef083559d0ec 100644 --- a/src/main/java/io/papermc/paper/plugin/provider/type/PluginFileType.java +++ b/src/main/java/io/papermc/paper/plugin/provider/type/PluginFileType.java @@ -22,9 +22,10 @@ import java.util.jar.JarFile; */ public abstract class PluginFileType { + public static final String PAPER_PLUGIN_YML = "paper-plugin.yml"; private static final List CONFIG_TYPES = new ArrayList<>(); - public static final PluginFileType PAPER = new PluginFileType<>("paper-plugin.yml", PaperPluginParent.FACTORY) { + public static final PluginFileType PAPER = new PluginFileType<>(PAPER_PLUGIN_YML, PaperPluginParent.FACTORY) { @Override protected void register(EntrypointHandler entrypointHandler, PaperPluginParent parent) { PaperPluginParent.PaperBootstrapProvider bootstrapPluginProvider = null; diff --git a/src/main/java/io/papermc/paper/pluginremap/DebugLogger.java b/src/main/java/io/papermc/paper/pluginremap/DebugLogger.java new file mode 100644 index 0000000000000000000000000000000000000000..99e658e3a0f08dbd90b3cf48609613e8a085fd64 --- /dev/null +++ b/src/main/java/io/papermc/paper/pluginremap/DebugLogger.java @@ -0,0 +1,63 @@ +package io.papermc.paper.pluginremap; + +import java.io.IOException; +import java.io.PrintWriter; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.function.Consumer; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.checker.nullness.qual.Nullable; +import org.checkerframework.framework.qual.DefaultQualifier; + +/** + * {@link PrintWriter}-backed logger implementation for use with {@link net.neoforged.art.api.Renamer} which + * only opens the backing writer and logs messages when the {@link PluginRemapper#DEBUG_LOGGING} system property + * is set to true. + */ +@DefaultQualifier(NonNull.class) +final class DebugLogger implements Consumer, AutoCloseable { + private final @Nullable PrintWriter writer; + + DebugLogger(final Path logFile) { + try { + this.writer = createWriter(logFile); + } catch (final IOException ex) { + throw new RuntimeException("Failed to initialize DebugLogger for file '" + logFile + "'", ex); + } + } + + @Override + public void accept(final String line) { + this.useWriter(writer -> writer.println(line)); + } + + @Override + public void close() { + this.useWriter(PrintWriter::close); + } + + private void useWriter(final Consumer op) { + final @Nullable PrintWriter writer = this.writer; + if (writer != null) { + op.accept(writer); + } + } + + Consumer debug() { + return line -> this.accept("[debug]: " + line); + } + + static DebugLogger forOutputFile(final Path outputFile) { + return new DebugLogger(outputFile.resolveSibling(outputFile.getFileName() + ".log")); + } + + private static @Nullable PrintWriter createWriter(final Path logFile) throws IOException { + if (!PluginRemapper.DEBUG_LOGGING) { + return null; + } + if (!Files.exists(logFile.getParent())) { + Files.createDirectories(logFile.getParent()); + } + return new PrintWriter(logFile.toFile()); + } +} diff --git a/src/main/java/io/papermc/paper/pluginremap/InsertManifestAttribute.java b/src/main/java/io/papermc/paper/pluginremap/InsertManifestAttribute.java new file mode 100644 index 0000000000000000000000000000000000000000..d738b31f0005aca352a511c1a57e76b627fca2dd --- /dev/null +++ b/src/main/java/io/papermc/paper/pluginremap/InsertManifestAttribute.java @@ -0,0 +1,69 @@ +package io.papermc.paper.pluginremap; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.util.Collection; +import java.util.List; +import java.util.Set; +import java.util.jar.Attributes; +import java.util.jar.Manifest; +import net.neoforged.art.api.Transformer; + +final class InsertManifestAttribute implements Transformer { + static final String PAPERWEIGHT_NAMESPACE_MANIFEST_KEY = "paperweight-mappings-namespace"; + static final String MOJANG_NAMESPACE = "mojang"; + static final String MOJANG_PLUS_YARN_NAMESPACE = "mojang+yarn"; + static final String SPIGOT_NAMESPACE = "spigot"; + static final Set KNOWN_NAMESPACES = Set.of(MOJANG_NAMESPACE, MOJANG_PLUS_YARN_NAMESPACE, SPIGOT_NAMESPACE); + + private final String mainAttributesKey; + private final String namespace; + private final boolean createIfMissing; + private volatile boolean visitedManifest = false; + + static Transformer addNamespaceManifestAttribute(final String namespace) { + return new InsertManifestAttribute(PAPERWEIGHT_NAMESPACE_MANIFEST_KEY, namespace, true); + } + + InsertManifestAttribute( + final String mainAttributesKey, + final String namespace, + final boolean createIfMissing + ) { + this.mainAttributesKey = mainAttributesKey; + this.namespace = namespace; + this.createIfMissing = createIfMissing; + } + + @Override + public ManifestEntry process(final ManifestEntry entry) { + this.visitedManifest = true; + try { + final Manifest manifest = new Manifest(new ByteArrayInputStream(entry.getData())); + manifest.getMainAttributes().putValue(this.mainAttributesKey, this.namespace); + final ByteArrayOutputStream out = new ByteArrayOutputStream(); + manifest.write(out); + return ManifestEntry.create(Entry.STABLE_TIMESTAMP, out.toByteArray()); + } catch (final IOException e) { + throw new RuntimeException("Failed to modify manifest", e); + } + } + + @Override + public Collection getExtras() { + if (!this.visitedManifest && this.createIfMissing) { + final Manifest manifest = new Manifest(); + manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0"); + manifest.getMainAttributes().putValue(this.mainAttributesKey, this.namespace); + final ByteArrayOutputStream out = new ByteArrayOutputStream(); + try { + manifest.write(out); + } catch (final IOException e) { + throw new RuntimeException("Failed to write manifest", e); + } + return List.of(ManifestEntry.create(Entry.STABLE_TIMESTAMP, out.toByteArray())); + } + return Transformer.super.getExtras(); + } +} diff --git a/src/main/java/io/papermc/paper/pluginremap/PluginRemapper.java b/src/main/java/io/papermc/paper/pluginremap/PluginRemapper.java new file mode 100644 index 0000000000000000000000000000000000000000..28857d0c9b53f2068d51b8f09ef40df7a2b97502 --- /dev/null +++ b/src/main/java/io/papermc/paper/pluginremap/PluginRemapper.java @@ -0,0 +1,438 @@ +package io.papermc.paper.pluginremap; + +import com.google.common.util.concurrent.ThreadFactoryBuilder; +import com.mojang.logging.LogUtils; +import io.papermc.paper.plugin.provider.type.PluginFileType; +import io.papermc.paper.util.AtomicFiles; +import io.papermc.paper.util.MappingEnvironment; +import io.papermc.paper.util.concurrent.ScalingThreadPool; +import java.io.BufferedInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.nio.file.FileSystem; +import java.nio.file.FileSystems; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.CompletionException; +import java.util.concurrent.Executor; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.function.Predicate; +import java.util.function.Supplier; +import java.util.jar.Manifest; +import java.util.stream.Stream; +import net.minecraft.DefaultUncaughtExceptionHandlerWithName; +import net.minecraft.util.ExceptionCollector; +import net.neoforged.art.api.Renamer; +import net.neoforged.art.api.SignatureStripperConfig; +import net.neoforged.art.api.Transformer; +import net.neoforged.srgutils.IMappingFile; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.checker.nullness.qual.Nullable; +import org.checkerframework.framework.qual.DefaultQualifier; +import org.slf4j.Logger; + +import static io.papermc.paper.pluginremap.InsertManifestAttribute.addNamespaceManifestAttribute; + +@DefaultQualifier(NonNull.class) +public final class PluginRemapper { + public static final boolean DEBUG_LOGGING = Boolean.getBoolean("Paper.PluginRemapperDebug"); + private static final String PAPER_REMAPPED = ".paper-remapped"; + private static final String UNKNOWN_ORIGIN = "unknown-origin"; + private static final String LIBRARIES = "libraries"; + private static final String EXTRA_PLUGINS = "extra-plugins"; + private static final String REMAP_CLASSPATH = "remap-classpath"; + private static final String REVERSED_MAPPINGS = "mappings/reversed"; + private static final Logger LOGGER = LogUtils.getClassLogger(); + + private final ExecutorService threadPool; + private final ReobfServer reobf; + private final RemappedPluginIndex remappedPlugins; + private final RemappedPluginIndex extraPlugins; + private final UnknownOriginRemappedPluginIndex unknownOrigin; + private final UnknownOriginRemappedPluginIndex libraries; + private @Nullable CompletableFuture reversedMappings; + + public PluginRemapper(final Path pluginsDir) { + this.threadPool = createThreadPool(); + final CompletableFuture mappings = CompletableFuture.supplyAsync(PluginRemapper::loadReobfMappings, this.threadPool); + final Path remappedPlugins = pluginsDir.resolve(PAPER_REMAPPED); + this.reversedMappings = this.reversedMappingsFuture(() -> mappings, remappedPlugins, this.threadPool); + this.reobf = new ReobfServer(remappedPlugins.resolve(REMAP_CLASSPATH), mappings, this.threadPool); + this.remappedPlugins = new RemappedPluginIndex(remappedPlugins, false); + this.extraPlugins = new RemappedPluginIndex(this.remappedPlugins.dir().resolve(EXTRA_PLUGINS), true); + this.unknownOrigin = new UnknownOriginRemappedPluginIndex(this.remappedPlugins.dir().resolve(UNKNOWN_ORIGIN)); + this.libraries = new UnknownOriginRemappedPluginIndex(this.remappedPlugins.dir().resolve(LIBRARIES)); + } + + public static @Nullable PluginRemapper create(final Path pluginsDir) { + if (MappingEnvironment.reobf() || !MappingEnvironment.hasMappings()) { + return null; + } + + return new PluginRemapper(pluginsDir); + } + + public void shutdown() { + this.threadPool.shutdown(); + this.save(true); + boolean didShutdown; + try { + didShutdown = this.threadPool.awaitTermination(3L, TimeUnit.SECONDS); + } catch (final InterruptedException ex) { + didShutdown = false; + } + if (!didShutdown) { + this.threadPool.shutdownNow(); + } + } + + public void save(final boolean clean) { + this.remappedPlugins.write(); + this.extraPlugins.write(); + this.unknownOrigin.write(clean); + this.libraries.write(clean); + } + + // Called on startup and reload + public void loadingPlugins() { + if (this.reversedMappings == null) { + this.reversedMappings = this.reversedMappingsFuture( + () -> CompletableFuture.supplyAsync(PluginRemapper::loadReobfMappings, this.threadPool), + this.remappedPlugins.dir(), + this.threadPool + ); + } + } + + // Called after all plugins enabled during startup/reload + public void pluginsEnabled() { + this.reversedMappings = null; + this.save(false); + } + + public List remapLibraries(final List libraries) { + final List> tasks = new ArrayList<>(); + for (final Path lib : libraries) { + if (!lib.getFileName().toString().endsWith(".jar")) { + if (DEBUG_LOGGING) { + LOGGER.info("Library '{}' is not a jar.", lib); + } + tasks.add(CompletableFuture.completedFuture(lib)); + continue; + } + final @Nullable Path cached = this.libraries.getIfPresent(lib); + if (cached != null) { + if (DEBUG_LOGGING) { + LOGGER.info("Library '{}' has not changed since last remap.", lib); + } + tasks.add(CompletableFuture.completedFuture(cached)); + continue; + } + tasks.add(this.remapLibrary(this.libraries, lib)); + } + return waitForAll(tasks); + } + + public Path rewritePlugin(final Path plugin) { + // Already remapped + if (plugin.getParent().equals(this.remappedPlugins.dir()) + || plugin.getParent().equals(this.extraPlugins.dir())) { + return plugin; + } + + final @Nullable Path cached = this.unknownOrigin.getIfPresent(plugin); + if (cached != null) { + if (DEBUG_LOGGING) { + LOGGER.info("Plugin '{}' has not changed since last remap.", plugin); + } + return cached; + } + + return this.remapPlugin(this.unknownOrigin, plugin).join(); + } + + public List rewriteExtraPlugins(final List plugins) { + final @Nullable List allCached = this.extraPlugins.getAllIfPresent(plugins); + if (allCached != null) { + if (DEBUG_LOGGING) { + LOGGER.info("All extra plugins have a remapped variant cached."); + } + return allCached; + } + + final List> tasks = new ArrayList<>(); + for (final Path file : plugins) { + final @Nullable Path cached = this.extraPlugins.getIfPresent(file); + if (cached != null) { + if (DEBUG_LOGGING) { + LOGGER.info("Extra plugin '{}' has not changed since last remap.", file); + } + tasks.add(CompletableFuture.completedFuture(cached)); + continue; + } + tasks.add(this.remapPlugin(this.extraPlugins, file)); + } + return waitForAll(tasks); + } + + public List rewritePluginDirectory(final List jars) { + final @Nullable List remappedJars = this.remappedPlugins.getAllIfPresent(jars); + if (remappedJars != null) { + if (DEBUG_LOGGING) { + LOGGER.info("All plugins have a remapped variant cached."); + } + return remappedJars; + } + + final List> tasks = new ArrayList<>(); + for (final Path file : jars) { + final @Nullable Path existingFile = this.remappedPlugins.getIfPresent(file); + if (existingFile != null) { + if (DEBUG_LOGGING) { + LOGGER.info("Plugin '{}' has not changed since last remap.", file); + } + tasks.add(CompletableFuture.completedFuture(existingFile)); + continue; + } + + tasks.add(this.remapPlugin(this.remappedPlugins, file)); + } + return waitForAll(tasks); + } + + private static IMappingFile reverse(final IMappingFile mappings) { + if (DEBUG_LOGGING) { + LOGGER.info("Reversing mappings..."); + } + final long start = System.currentTimeMillis(); + final IMappingFile reversed = mappings.reverse(); + if (DEBUG_LOGGING) { + LOGGER.info("Done reversing mappings in {}ms.", System.currentTimeMillis() - start); + } + return reversed; + } + + private CompletableFuture reversedMappingsFuture( + final Supplier> mappingsFuture, + final Path remappedPlugins, + final Executor executor + ) { + return CompletableFuture.supplyAsync(() -> { + try { + final String mappingsHash = MappingEnvironment.mappingsHash(); + final String fName = mappingsHash + ".tiny"; + final Path reversedMappings1 = remappedPlugins.resolve(REVERSED_MAPPINGS); + final Path file = reversedMappings1.resolve(fName); + if (Files.isDirectory(reversedMappings1)) { + if (Files.isRegularFile(file)) { + return CompletableFuture.completedFuture( + loadMappings("Reversed", Files.newInputStream(file)) + ); + } else { + for (final Path oldFile : list(reversedMappings1, Files::isRegularFile)) { + Files.delete(oldFile); + } + } + } else { + Files.createDirectories(reversedMappings1); + } + return mappingsFuture.get().thenApply(loadedMappings -> { + final IMappingFile reversed = reverse(loadedMappings); + try { + AtomicFiles.atomicWrite(file, writeTo -> { + reversed.write(writeTo, IMappingFile.Format.TINY, false); + }); + } catch (final IOException e) { + throw new RuntimeException("Failed to write reversed mappings", e); + } + return reversed; + }); + } catch (final IOException e) { + throw new RuntimeException("Failed to load reversed mappings", e); + } + }, executor).thenCompose(f -> f); + } + + private CompletableFuture remapPlugin( + final RemappedPluginIndex index, + final Path inputFile + ) { + return this.remap(index, inputFile, false); + } + + private CompletableFuture remapLibrary( + final RemappedPluginIndex index, + final Path inputFile + ) { + return this.remap(index, inputFile, true); + } + + /** + * Returns the remapped file if remapping was necessary, otherwise null. + * + * @param index remapped plugin index + * @param inputFile input file + * @return remapped file, or inputFile if no remapping was necessary + */ + private CompletableFuture remap( + final RemappedPluginIndex index, + final Path inputFile, + final boolean library + ) { + final Path destination = index.input(inputFile); + + try (final FileSystem fs = FileSystems.newFileSystem(inputFile, new HashMap<>())) { + // Leave dummy files if no remapping is required, so that we can check if they exist without copying the whole file + final Path manifestPath = fs.getPath("META-INF/MANIFEST.MF"); + final @Nullable String ns; + if (Files.exists(manifestPath)) { + final Manifest manifest; + try (final InputStream in = new BufferedInputStream(Files.newInputStream(manifestPath))) { + manifest = new Manifest(in); + } + ns = manifest.getMainAttributes().getValue(InsertManifestAttribute.PAPERWEIGHT_NAMESPACE_MANIFEST_KEY); + } else { + ns = null; + } + + if (ns != null && !InsertManifestAttribute.KNOWN_NAMESPACES.contains(ns)) { + throw new RuntimeException("Failed to remap plugin " + inputFile + " with unknown mapping namespace '" + ns + "'"); + } + + final boolean mojangMappedManifest = ns != null && (ns.equals(InsertManifestAttribute.MOJANG_NAMESPACE) || ns.equals(InsertManifestAttribute.MOJANG_PLUS_YARN_NAMESPACE)); + if (library) { + if (mojangMappedManifest) { + if (DEBUG_LOGGING) { + LOGGER.info("Library '{}' is already Mojang mapped.", inputFile); + } + index.skip(inputFile); + return CompletableFuture.completedFuture(inputFile); + } else if (ns == null) { + if (DEBUG_LOGGING) { + LOGGER.info("Library '{}' does not specify a mappings namespace (not remapping).", inputFile); + } + index.skip(inputFile); + return CompletableFuture.completedFuture(inputFile); + } + } else { + if (mojangMappedManifest) { + if (DEBUG_LOGGING) { + LOGGER.info("Plugin '{}' is already Mojang mapped.", inputFile); + } + index.skip(inputFile); + return CompletableFuture.completedFuture(inputFile); + } else if (ns == null && Files.exists(fs.getPath(PluginFileType.PAPER_PLUGIN_YML))) { + if (DEBUG_LOGGING) { + LOGGER.info("Plugin '{}' is a Paper plugin with no namespace specified.", inputFile); + } + index.skip(inputFile); + return CompletableFuture.completedFuture(inputFile); + } + } + } catch (final IOException ex) { + return CompletableFuture.failedFuture(new RuntimeException("Failed to open plugin jar " + inputFile, ex)); + } + + return this.reobf.remapped().thenApplyAsync(reobfServer -> { + LOGGER.info("Remapping {} '{}'...", library ? "library" : "plugin", inputFile); + final long start = System.currentTimeMillis(); + try (final DebugLogger logger = DebugLogger.forOutputFile(destination)) { + try (final Renamer renamer = Renamer.builder() + .add(Transformer.renamerFactory(this.mappings(), false)) + .add(addNamespaceManifestAttribute(InsertManifestAttribute.MOJANG_PLUS_YARN_NAMESPACE)) + .add(Transformer.signatureStripperFactory(SignatureStripperConfig.ALL)) + .lib(reobfServer.toFile()) + .threads(1) + .logger(logger) + .debug(logger.debug()) + .build()) { + renamer.run(inputFile.toFile(), destination.toFile()); + } + } catch (final Exception ex) { + throw new RuntimeException("Failed to remap plugin jar '" + inputFile + "'", ex); + } + LOGGER.info("Done remapping {} '{}' in {}ms.", library ? "library" : "plugin", inputFile, System.currentTimeMillis() - start); + return destination; + }, this.threadPool); + } + + private IMappingFile mappings() { + final @Nullable CompletableFuture mappings = this.reversedMappings; + if (mappings == null) { + return this.reversedMappingsFuture( + () -> CompletableFuture.supplyAsync(PluginRemapper::loadReobfMappings, Runnable::run), + this.remappedPlugins.dir(), + Runnable::run + ).join(); + } + return mappings.join(); + } + + private static IMappingFile loadReobfMappings() { + return loadMappings("Reobf", MappingEnvironment.mappingsStream()); + } + + private static IMappingFile loadMappings(final String name, final InputStream stream) { + try (stream) { + if (DEBUG_LOGGING) { + LOGGER.info("Loading {} mappings...", name); + } + final long start = System.currentTimeMillis(); + final IMappingFile load = IMappingFile.load(stream); + if (DEBUG_LOGGING) { + LOGGER.info("Done loading {} mappings in {}ms.", name, System.currentTimeMillis() - start); + } + return load; + } catch (final IOException ex) { + throw new RuntimeException("Failed to load " + name + " mappings", ex); + } + } + + static List list(final Path dir, final Predicate filter) { + try (final Stream stream = Files.list(dir)) { + return stream.filter(filter).toList(); + } catch (final IOException ex) { + throw new RuntimeException("Failed to list directory '" + dir + "'", ex); + } + } + + private static List waitForAll(final List> tasks) { + final ExceptionCollector collector = new ExceptionCollector<>(); + final List ret = new ArrayList<>(); + for (final CompletableFuture task : tasks) { + try { + ret.add(task.join()); + } catch (final CompletionException ex) { + collector.add(ex); + } + } + try { + collector.throwIfPresent(); + } catch (final Exception ex) { + // Don't hard fail during bootstrap/plugin loading. The plugin(s) in question will be skipped + LOGGER.error("Encountered exception remapping plugins", ex); + } + return ret; + } + + private static ThreadPoolExecutor createThreadPool() { + return new ThreadPoolExecutor( + 0, + 4, + 5L, + TimeUnit.SECONDS, + ScalingThreadPool.createUnboundedQueue(), + new ThreadFactoryBuilder() + .setNameFormat("Paper Plugin Remapper Thread - %1$d") + .setUncaughtExceptionHandler(new DefaultUncaughtExceptionHandlerWithName(LOGGER)) + .build(), + ScalingThreadPool.defaultReEnqueuePolicy() + ); + } +} diff --git a/src/main/java/io/papermc/paper/pluginremap/RemappedPluginIndex.java b/src/main/java/io/papermc/paper/pluginremap/RemappedPluginIndex.java new file mode 100644 index 0000000000000000000000000000000000000000..86fc60452404d1f4609c25a90c4803ffb80dc8ab --- /dev/null +++ b/src/main/java/io/papermc/paper/pluginremap/RemappedPluginIndex.java @@ -0,0 +1,212 @@ +package io.papermc.paper.pluginremap; + +import com.google.gson.Gson; +import com.google.gson.GsonBuilder; +import com.mojang.logging.LogUtils; +import io.papermc.paper.util.Hashing; +import io.papermc.paper.util.MappingEnvironment; +import java.io.BufferedReader; +import java.io.BufferedWriter; +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.function.Function; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.checker.nullness.qual.Nullable; +import org.checkerframework.framework.qual.DefaultQualifier; +import org.slf4j.Logger; +import org.spongepowered.configurate.loader.AtomicFiles; + +@DefaultQualifier(NonNull.class) +class RemappedPluginIndex { + private static final Logger LOGGER = LogUtils.getLogger(); + private static final Gson GSON = new GsonBuilder() + .setPrettyPrinting() + .create(); + private static final String INDEX_FILE_NAME = "index.json"; + + protected final State state; + private final Path dir; + private final Path indexFile; + private final boolean handleDuplicateFileNames; + + // todo maybe hash remapped variants to ensure they haven't changed? probably unneeded + static final class State { + final Map hashes = new HashMap<>(); + final Set skippedHashes = new HashSet<>(); + private final String mappingsHash = MappingEnvironment.mappingsHash(); + } + + RemappedPluginIndex(final Path dir, final boolean handleDuplicateFileNames) { + this.dir = dir; + this.handleDuplicateFileNames = handleDuplicateFileNames; + if (!Files.exists(this.dir)) { + try { + Files.createDirectories(this.dir); + } catch (final IOException ex) { + throw new RuntimeException(ex); + } + } + + this.indexFile = dir.resolve(INDEX_FILE_NAME); + if (Files.isRegularFile(this.indexFile)) { + try { + this.state = this.readIndex(); + } catch (final IOException e) { + throw new RuntimeException(e); + } + } else { + this.state = new State(); + } + } + + private State readIndex() throws IOException { + final State state; + try (final BufferedReader reader = Files.newBufferedReader(this.indexFile)) { + state = GSON.fromJson(reader, State.class); + } + + // If mappings have changed, delete all cached files and create a new index + if (!state.mappingsHash.equals(MappingEnvironment.mappingsHash())) { + for (final String fileName : state.hashes.values()) { + Files.deleteIfExists(this.dir.resolve(fileName)); + } + return new State(); + } + return state; + } + + Path dir() { + return this.dir; + } + + /** + * Returns a list of cached paths if all of the input paths are present in the cache. + * The returned list may contain paths from different directories. + * + * @param paths plugin jar paths to check + * @return null if any of the paths are not present in the cache, otherwise a list of the cached paths + */ + @Nullable List getAllIfPresent(final List paths) { + final Map hashCache = new HashMap<>(); + final Function inputFileHash = path -> hashCache.computeIfAbsent(path, Hashing::sha256); + + // Delete cached entries we no longer need + final Iterator> iterator = this.state.hashes.entrySet().iterator(); + while (iterator.hasNext()) { + final Map.Entry entry = iterator.next(); + final String inputHash = entry.getKey(); + final String fileName = entry.getValue(); + if (paths.stream().anyMatch(path -> inputFileHash.apply(path).equals(inputHash))) { + // Hash is used, keep it + continue; + } + + iterator.remove(); + try { + Files.deleteIfExists(this.dir.resolve(fileName)); + } catch (final IOException ex) { + throw new RuntimeException(ex); + } + } + + // Also clear hashes of skipped files + this.state.skippedHashes.removeIf(hash -> paths.stream().noneMatch(path -> inputFileHash.apply(path).equals(hash))); + + final List ret = new ArrayList<>(); + for (final Path path : paths) { + final String inputHash = inputFileHash.apply(path); + if (this.state.skippedHashes.contains(inputHash)) { + // Add the original path + ret.add(path); + continue; + } + + final @Nullable Path cached = this.getIfPresent(inputHash); + if (cached == null) { + // Missing the remapped file + return null; + } + ret.add(cached); + } + return ret; + } + + private String createCachedFileName(final Path in) { + if (this.handleDuplicateFileNames) { + final String fileName = in.getFileName().toString(); + final int i = fileName.lastIndexOf(".jar"); + return fileName.substring(0, i) + "-" + System.currentTimeMillis() + ".jar"; + } + return in.getFileName().toString(); + } + + /** + * Returns the given path if the file was previously skipped for being remapped, otherwise the cached path or null. + * + * @param in input file + * @return {@code in} if already remapped, the cached path if present, otherwise null + */ + @Nullable Path getIfPresent(final Path in) { + final String inHash = Hashing.sha256(in); + if (this.state.skippedHashes.contains(inHash)) { + return in; + } + return this.getIfPresent(inHash); + } + + /** + * Returns the cached path if a remapped file is present for the given hash, otherwise null. + * + * @param inHash hash of the input file + * @return the cached path if present, otherwise null + * @see #getIfPresent(Path) + */ + protected @Nullable Path getIfPresent(final String inHash) { + final @Nullable String fileName = this.state.hashes.get(inHash); + if (fileName == null) { + return null; + } + + final Path path = this.dir.resolve(fileName); + if (Files.exists(path)) { + return path; + } + return null; + } + + Path input(final Path in) { + return this.input(in, Hashing.sha256(in)); + } + + /** + * Marks the given file as skipped for remapping. + * + * @param in input file + */ + void skip(final Path in) { + this.state.skippedHashes.add(Hashing.sha256(in)); + } + + protected Path input(final Path in, final String hashString) { + final String name = this.createCachedFileName(in); + this.state.hashes.put(hashString, name); + return this.dir.resolve(name); + } + + void write() { + try (final BufferedWriter writer = AtomicFiles.atomicBufferedWriter(this.indexFile, StandardCharsets.UTF_8)) { + GSON.toJson(this.state, writer); + } catch (final IOException ex) { + LOGGER.warn("Failed to write index file '{}'", this.indexFile, ex); + } + } +} diff --git a/src/main/java/io/papermc/paper/pluginremap/ReobfServer.java b/src/main/java/io/papermc/paper/pluginremap/ReobfServer.java new file mode 100644 index 0000000000000000000000000000000000000000..aa5bf7ae042f3d43f7612d027ebef0e5c758ffc9 --- /dev/null +++ b/src/main/java/io/papermc/paper/pluginremap/ReobfServer.java @@ -0,0 +1,92 @@ +package io.papermc.paper.pluginremap; + +import com.mojang.logging.LogUtils; +import io.papermc.paper.util.AtomicFiles; +import io.papermc.paper.util.MappingEnvironment; +import java.io.IOException; +import java.net.URISyntaxException; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.Executor; +import net.neoforged.art.api.Renamer; +import net.neoforged.art.api.Transformer; +import net.neoforged.art.internal.RenamerImpl; +import net.neoforged.srgutils.IMappingFile; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.framework.qual.DefaultQualifier; +import org.slf4j.Logger; + +import static io.papermc.paper.pluginremap.InsertManifestAttribute.addNamespaceManifestAttribute; + +@DefaultQualifier(NonNull.class) +final class ReobfServer { + private static final Logger LOGGER = LogUtils.getClassLogger(); + + private final Path remapClasspathDir; + private final CompletableFuture load; + + ReobfServer(final Path remapClasspathDir, final CompletableFuture mappings, final Executor executor) { + this.remapClasspathDir = remapClasspathDir; + if (this.mappingsChanged()) { + this.load = mappings.thenAcceptAsync(this::remap, executor); + } else { + if (PluginRemapper.DEBUG_LOGGING) { + LOGGER.info("Have cached reobf server for current mappings."); + } + this.load = CompletableFuture.completedFuture(null); + } + } + + CompletableFuture remapped() { + return this.load.thenApply($ -> this.remappedPath()); + } + + private Path remappedPath() { + return this.remapClasspathDir.resolve(MappingEnvironment.mappingsHash() + ".jar"); + } + + private boolean mappingsChanged() { + return !Files.exists(this.remappedPath()); + } + + private void remap(final IMappingFile mappings) { + try { + if (!Files.exists(this.remapClasspathDir)) { + Files.createDirectories(this.remapClasspathDir); + } + for (final Path file : PluginRemapper.list(this.remapClasspathDir, Files::isRegularFile)) { + Files.delete(file); + } + } catch (final IOException ex) { + throw new RuntimeException(ex); + } + + LOGGER.info("Remapping server..."); + final long startRemap = System.currentTimeMillis(); + try (final DebugLogger log = DebugLogger.forOutputFile(this.remappedPath())) { + AtomicFiles.atomicWrite(this.remappedPath(), writeTo -> { + try (final RenamerImpl renamer = (RenamerImpl) Renamer.builder() + .logger(log) + .debug(log.debug()) + .threads(1) + .add(Transformer.renamerFactory(mappings, false)) + .add(addNamespaceManifestAttribute(InsertManifestAttribute.SPIGOT_NAMESPACE)) + .build()) { + renamer.run(serverJar().toFile(), writeTo.toFile(), true); + } + }); + } catch (final Exception ex) { + throw new RuntimeException("Failed to remap server jar", ex); + } + LOGGER.info("Done remapping server in {}ms.", System.currentTimeMillis() - startRemap); + } + + private static Path serverJar() { + try { + return Path.of(ReobfServer.class.getProtectionDomain().getCodeSource().getLocation().toURI()); + } catch (final URISyntaxException ex) { + throw new RuntimeException(ex); + } + } +} diff --git a/src/main/java/io/papermc/paper/pluginremap/UnknownOriginRemappedPluginIndex.java b/src/main/java/io/papermc/paper/pluginremap/UnknownOriginRemappedPluginIndex.java new file mode 100644 index 0000000000000000000000000000000000000000..ad53aab4fee16b76f6e4fd44e4b28d06fef80de4 --- /dev/null +++ b/src/main/java/io/papermc/paper/pluginremap/UnknownOriginRemappedPluginIndex.java @@ -0,0 +1,72 @@ +package io.papermc.paper.pluginremap; + +import com.mojang.logging.LogUtils; +import io.papermc.paper.util.Hashing; +import java.io.IOException; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.HashSet; +import java.util.Iterator; +import java.util.Map; +import java.util.Set; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.checker.nullness.qual.Nullable; +import org.checkerframework.framework.qual.DefaultQualifier; +import org.slf4j.Logger; + +@DefaultQualifier(NonNull.class) +final class UnknownOriginRemappedPluginIndex extends RemappedPluginIndex { + private static final Logger LOGGER = LogUtils.getLogger(); + + private final Set used = new HashSet<>(); + + UnknownOriginRemappedPluginIndex(final Path dir) { + super(dir, true); + } + + @Override + @Nullable Path getIfPresent(final Path in) { + final String hash = Hashing.sha256(in); + if (this.state.skippedHashes.contains(hash)) { + return in; + } + + final @Nullable Path path = super.getIfPresent(hash); + if (path != null) { + this.used.add(hash); + } + return path; + } + + @Override + Path input(final Path in) { + final String hash = Hashing.sha256(in); + this.used.add(hash); + return super.input(in, hash); + } + + void write(final boolean clean) { + if (!clean) { + super.write(); + return; + } + + final Iterator> it = this.state.hashes.entrySet().iterator(); + while (it.hasNext()) { + final Map.Entry next = it.next(); + if (this.used.contains(next.getKey())) { + continue; + } + + // Remove unused mapped file + it.remove(); + final Path file = this.dir().resolve(next.getValue()); + try { + Files.deleteIfExists(file); + } catch (final IOException ex) { + LOGGER.warn("Failed to delete no longer needed cached jar '{}'", file, ex); + } + } + super.write(); + } +} diff --git a/src/main/java/io/papermc/paper/util/AtomicFiles.java b/src/main/java/io/papermc/paper/util/AtomicFiles.java new file mode 100644 index 0000000000000000000000000000000000000000..944250d2b8e1969f221b2f24cce7b1019c55fe01 --- /dev/null +++ b/src/main/java/io/papermc/paper/util/AtomicFiles.java @@ -0,0 +1,96 @@ +package io.papermc.paper.util; + +import java.io.IOException; +import java.nio.file.AccessDeniedException; +import java.nio.file.AtomicMoveNotSupportedException; +import java.nio.file.CopyOption; +import java.nio.file.Files; +import java.nio.file.Path; +import java.nio.file.StandardCopyOption; +import java.util.concurrent.ThreadLocalRandom; +import java.util.function.Consumer; +import org.spongepowered.configurate.util.CheckedConsumer; + +// Stripped down version of https://github.com/jpenilla/squaremap/blob/7d7994b4096e5fc61364ea2d87e9aa4e14edf5c6/common/src/main/java/xyz/jpenilla/squaremap/common/util/FileUtil.java +public final class AtomicFiles { + + private AtomicFiles() { + } + + public static void atomicWrite(final Path path, final CheckedConsumer op) throws IOException { + final Path tmp = tempFile(path); + + try { + op.accept(tmp); + atomicMove(tmp, path, true); + } catch (final IOException ex) { + try { + Files.deleteIfExists(tmp); + } catch (final IOException ex1) { + ex.addSuppressed(ex1); + } + throw ex; + } + } + + private static Path tempFile(final Path path) { + return path.resolveSibling("." + System.nanoTime() + "-" + ThreadLocalRandom.current().nextInt() + "-" + path.getFileName().toString() + ".tmp"); } + + @SuppressWarnings("BusyWait") // not busy waiting + public static void atomicMove(final Path from, final Path to, final boolean replaceExisting) throws IOException { + final int maxRetries = 2; + + try { + atomicMoveIfPossible(from, to, replaceExisting); + } catch (final AccessDeniedException ex) { + // Sometimes because of file locking this will fail... Let's just try again and hope for the best + // Thanks Windows! + int retries = 1; + while (true) { + try { + // Pause for a bit + Thread.sleep(10L * retries); + atomicMoveIfPossible(from, to, replaceExisting); + break; // success + } catch (final AccessDeniedException ex1) { + ex.addSuppressed(ex1); + if (retries == maxRetries) { + throw ex; + } + } catch (final InterruptedException interruptedException) { + ex.addSuppressed(interruptedException); + Thread.currentThread().interrupt(); + throw ex; + } + ++retries; + } + } + } + + private static void atomicMoveIfPossible(final Path from, final Path to, final boolean replaceExisting) throws IOException { + final CopyOption[] options = replaceExisting + ? new CopyOption[]{StandardCopyOption.ATOMIC_MOVE, StandardCopyOption.REPLACE_EXISTING} + : new CopyOption[]{StandardCopyOption.ATOMIC_MOVE}; + + try { + Files.move(from, to, options); + } catch (final AtomicMoveNotSupportedException ex) { + Files.move(from, to, replaceExisting ? new CopyOption[]{StandardCopyOption.REPLACE_EXISTING} : new CopyOption[]{}); + } + } + + private static Consumer sneaky(final CheckedConsumer consumer) { + return t -> { + try { + consumer.accept(t); + } catch (final Throwable thr) { + rethrow(thr); + } + }; + } + + @SuppressWarnings("unchecked") + private static RuntimeException rethrow(final Throwable t) throws X { + throw (X) t; + } +} diff --git a/src/main/java/io/papermc/paper/util/Hashing.java b/src/main/java/io/papermc/paper/util/Hashing.java new file mode 100644 index 0000000000000000000000000000000000000000..54c1324faa190a06bfa2b3b8f86928b4c51a57f8 --- /dev/null +++ b/src/main/java/io/papermc/paper/util/Hashing.java @@ -0,0 +1,50 @@ +package io.papermc.paper.util; + +import com.google.common.hash.HashCode; +import java.io.IOException; +import java.io.InputStream; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.Locale; +import org.apache.commons.io.IOUtils; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.framework.qual.DefaultQualifier; + +@DefaultQualifier(NonNull.class) +public final class Hashing { + private Hashing() { + } + + /** + * Hash the provided {@link InputStream} using SHA-256. Stream will be closed. + * + * @param stream input stream + * @return SHA-256 hash string + */ + public static String sha256(final InputStream stream) { + try (stream) { + return com.google.common.hash.Hashing.sha256().hashBytes(IOUtils.toByteArray(stream)).toString().toUpperCase(Locale.ROOT); + } catch (final IOException ex) { + throw new RuntimeException("Failed to take hash of InputStream", ex); + } + } + + /** + * Hash the provided file using SHA-256. + * + * @param file file + * @return SHA-256 hash string + */ + public static String sha256(final Path file) { + if (!Files.isRegularFile(file)) { + throw new IllegalArgumentException("'" + file + "' is not a regular file!"); + } + final HashCode hash; + try { + hash = com.google.common.io.Files.asByteSource(file.toFile()).hash(com.google.common.hash.Hashing.sha256()); + } catch (final IOException ex) { + throw new RuntimeException("Failed to take hash of file '" + file + "'", ex); + } + return hash.toString().toUpperCase(Locale.ROOT); + } +} diff --git a/src/main/java/io/papermc/paper/util/MappingEnvironment.java b/src/main/java/io/papermc/paper/util/MappingEnvironment.java new file mode 100644 index 0000000000000000000000000000000000000000..8e4229634d41a42b3d93948eebb77def7c0c72b1 --- /dev/null +++ b/src/main/java/io/papermc/paper/util/MappingEnvironment.java @@ -0,0 +1,65 @@ +package io.papermc.paper.util; + +import java.io.InputStream; +import java.util.Objects; +import java.util.jar.Manifest; +import net.minecraft.world.entity.MobCategory; +import org.checkerframework.checker.nullness.qual.NonNull; +import org.checkerframework.checker.nullness.qual.Nullable; +import org.checkerframework.framework.qual.DefaultQualifier; + +@DefaultQualifier(NonNull.class) +public final class MappingEnvironment { + private static final @Nullable String MAPPINGS_HASH = readMappingsHash(); + private static final boolean REOBF = checkReobf(); + + private MappingEnvironment() { + } + + public static boolean reobf() { + return REOBF; + } + + public static boolean hasMappings() { + return MAPPINGS_HASH != null; + } + + public static InputStream mappingsStream() { + return Objects.requireNonNull(mappingsStreamIfPresent(), "Missing mappings!"); + } + + public static @Nullable InputStream mappingsStreamIfPresent() { + return MappingEnvironment.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny"); + } + + public static String mappingsHash() { + return Objects.requireNonNull(MAPPINGS_HASH, "MAPPINGS_HASH"); + } + + private static @Nullable String readMappingsHash() { + final @Nullable Manifest manifest = JarManifests.manifest(MappingEnvironment.class); + if (manifest != null) { + final Object hash = manifest.getMainAttributes().getValue("Included-Mappings-Hash"); + if (hash != null) { + return hash.toString(); + } + } + + final @Nullable InputStream stream = mappingsStreamIfPresent(); + if (stream == null) { + return null; + } + return Hashing.sha256(stream); + } + + @SuppressWarnings("ConstantConditions") + private static boolean checkReobf() { + final Class clazz = MobCategory.class; + if (clazz.getSimpleName().equals("MobCategory")) { + return false; + } else if (clazz.getSimpleName().equals("EnumCreatureType")) { + return true; + } + throw new IllegalStateException(); + } +} diff --git a/src/main/java/io/papermc/paper/util/ObfHelper.java b/src/main/java/io/papermc/paper/util/ObfHelper.java index 9e6d48335b37fa5204bfebf396d748089884555b..6067be951c4c52c4b1da51efc01436b2c90ea3bf 100644 --- a/src/main/java/io/papermc/paper/util/ObfHelper.java +++ b/src/main/java/io/papermc/paper/util/ObfHelper.java @@ -80,10 +80,10 @@ public enum ObfHelper { } private static @Nullable Set loadMappingsIfPresent() { - try (final @Nullable InputStream mappingsInputStream = ObfHelper.class.getClassLoader().getResourceAsStream("META-INF/mappings/reobf.tiny")) { - if (mappingsInputStream == null) { - return null; - } + if (!MappingEnvironment.hasMappings()) { + return null; + } + try (final InputStream mappingsInputStream = MappingEnvironment.mappingsStream()) { final IMappingFile mappings = IMappingFile.load(mappingsInputStream); // Mappings are mojang->spigot final Set classes = new HashSet<>(); diff --git a/src/main/java/io/papermc/paper/util/concurrent/ScalingThreadPool.java b/src/main/java/io/papermc/paper/util/concurrent/ScalingThreadPool.java new file mode 100644 index 0000000000000000000000000000000000000000..badff5d6ae6dd8d209c82bc7e8afe370db6148f2 --- /dev/null +++ b/src/main/java/io/papermc/paper/util/concurrent/ScalingThreadPool.java @@ -0,0 +1,85 @@ +package io.papermc.paper.util.concurrent; + +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.LinkedBlockingQueue; +import java.util.concurrent.RejectedExecutionHandler; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicInteger; + +/** + * Utilities for scaling thread pools. + * + * @see Java Scale First ExecutorService — A myth or a reality + */ +public final class ScalingThreadPool { + private ScalingThreadPool() { + } + + public static RejectedExecutionHandler defaultReEnqueuePolicy() { + return reEnqueuePolicy(new ThreadPoolExecutor.AbortPolicy()); + } + + public static RejectedExecutionHandler reEnqueuePolicy(final RejectedExecutionHandler original) { + return new ReEnqueuePolicy(original); + } + + public static BlockingQueue createUnboundedQueue() { + return new Queue<>(); + } + + public static BlockingQueue createQueue(final int capacity) { + return new Queue<>(capacity); + } + + private static final class Queue extends LinkedBlockingQueue { + private final AtomicInteger idleThreads = new AtomicInteger(0); + + private Queue() { + super(); + } + + private Queue(final int capacity) { + super(capacity); + } + + @Override + public boolean offer(final E e) { + return this.idleThreads.get() > 0 && super.offer(e); + } + + @Override + public E take() throws InterruptedException { + this.idleThreads.incrementAndGet(); + try { + return super.take(); + } finally { + this.idleThreads.decrementAndGet(); + } + } + + @Override + public E poll(final long timeout, final TimeUnit unit) throws InterruptedException { + this.idleThreads.incrementAndGet(); + try { + return super.poll(timeout, unit); + } finally { + this.idleThreads.decrementAndGet(); + } + } + + @Override + public boolean add(final E e) { + return super.offer(e); + } + } + + private record ReEnqueuePolicy(RejectedExecutionHandler originalHandler) implements RejectedExecutionHandler { + @Override + public void rejectedExecution(final Runnable r, final ThreadPoolExecutor executor) { + if (!executor.getQueue().add(r)) { + this.originalHandler.rejectedExecution(r, executor); + } + } + } +} diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 91800791427e9362baf68ca3cffda5bfa58de2b8..5a4cdbc4b92a48c614564e4e421f05a9eb5b072b 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -643,6 +643,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop libraries; + private final List transformers; + private final SortedClassProvider sortedClassProvider; + private final List classProviders; + private final int threads; + private final Consumer logger; + private final Consumer debug; + private boolean setup = false; + private ClassProvider libraryClasses; + + RenamerImpl(List libraries, List transformers, SortedClassProvider sortedClassProvider, List classProviders, + int threads, Consumer logger, Consumer debug) { + this.libraries = libraries; + this.transformers = transformers; + this.sortedClassProvider = sortedClassProvider; + this.classProviders = Collections.unmodifiableList(classProviders); + this.threads = threads; + this.logger = logger; + this.debug = debug; + } + + private void setup() { + if (this.setup) + return; + + this.setup = true; + + ClassProvider.Builder libraryClassesBuilder = ClassProvider.builder().shouldCacheAll(true); + this.logger.accept("Adding Libraries to Inheritance"); + this.libraries.forEach(f -> libraryClassesBuilder.addLibrary(f.toPath())); + + this.libraryClasses = libraryClassesBuilder.build(); + } + + @Override + public void run(File input, File output) { + // Paper start - Add remappingSelf + this.run(input, output, false); + } + public void run(File input, File output, boolean remappingSelf) { + // Paper end + if (!this.setup) + this.setup(); + + if (Boolean.getBoolean(ProgressReporter.ENABLED_PROPERTY)) { + try { + PROGRESS.setMaxProgress(JarUtils.getFileCountInZip(input)); + } catch (IOException e) { + logger.accept("Failed to read zip file count: " + e); + } + } + + input = Objects.requireNonNull(input).getAbsoluteFile(); + output = Objects.requireNonNull(output).getAbsoluteFile(); + + if (!input.exists()) + throw new IllegalArgumentException("Input file not found: " + input.getAbsolutePath()); + + logger.accept("Reading Input: " + input.getAbsolutePath()); + PROGRESS.setStep("Reading input jar"); + // Read everything from the input jar! + List oldEntries = new ArrayList<>(); + try (ZipFile in = new ZipFile(input)) { + int amount = 0; + for (Enumeration entries = in.entries(); entries.hasMoreElements();) { + final ZipEntry e = entries.nextElement(); + if (e.isDirectory()) + continue; + String name = e.getName(); + byte[] data; + try (InputStream entryInput = in.getInputStream(e)) { + data = entryInput.readAllBytes(); // Paper - Use readAllBytes + } + + if (name.endsWith(".class") && !name.contains("META-INF/")) // Paper - Skip META-INF entries + oldEntries.add(ClassEntry.create(name, e.getTime(), data)); + else if (name.equals(MANIFEST_NAME)) + oldEntries.add(ManifestEntry.create(e.getTime(), data)); + else if (name.equals("javadoctor.json")) + oldEntries.add(Transformer.JavadoctorEntry.create(e.getTime(), data)); + else + oldEntries.add(ResourceEntry.create(name, e.getTime(), data)); + + if ((++amount) % 10 == 0) { + PROGRESS.setProgress(amount); + } + } + } catch (IOException e) { + throw new RuntimeException("Could not parse input: " + input.getAbsolutePath(), e); + } + + this.sortedClassProvider.clearCache(); + ArrayList classProviders = new ArrayList<>(this.classProviders); + classProviders.add(0, this.libraryClasses); + this.sortedClassProvider.classProviders = classProviders; + + AsyncHelper async = new AsyncHelper(threads); + try { + + /* Disabled until we do something with it + // Gather original file Hashes, so that we can detect changes and update the manifest if necessary + log("Gathering original hashes"); + Map oldHashes = async.invokeAll(oldEntries, + e -> new Pair<>(e.getName(), HashFunction.SHA256.hash(e.getData())) + ).stream().collect(Collectors.toMap(Pair::getLeft, Pair::getRight)); + */ + + PROGRESS.setProgress(0); + PROGRESS.setIndeterminate(true); + PROGRESS.setStep("Processing entries"); + + List ourClasses = oldEntries.stream() + .filter(e -> e instanceof ClassEntry && !e.getName().startsWith("META-INF/")) + .map(ClassEntry.class::cast) + .collect(Collectors.toList()); + + // Add the original classes to the inheritance map, TODO: Multi-Release somehow? + logger.accept("Adding input to inheritance map"); + ClassProvider.Builder inputClassesBuilder = ClassProvider.builder(); + async.consumeAll(ourClasses, ClassEntry::getClassName, c -> + inputClassesBuilder.addClass(c.getName().substring(0, c.getName().length() - 6), c.getData()) + ); + classProviders.add(0, inputClassesBuilder.build()); + + // Process everything + logger.accept("Processing entries"); + List newEntries = async.invokeAll(oldEntries, Entry::getName, this::processEntry); + + logger.accept("Adding extras"); + // Paper start - I'm pretty sure the duplicates are because the input is already on the classpath + List finalNewEntries = newEntries; + transformers.forEach(t -> finalNewEntries.addAll(t.getExtras())); + + Set seen = new HashSet<>(); + if (remappingSelf) { + // deduplicate + List n = new ArrayList<>(); + for (final Entry e : newEntries) { + if (seen.add(e.getName())) { + n.add(e); + } + } + newEntries = n; + } else { + String dupes = newEntries.stream().map(Entry::getName) + .filter(n -> !seen.add(n)) + .sorted() + .collect(Collectors.joining(", ")); + if (!dupes.isEmpty()) + throw new IllegalStateException("Duplicate entries detected: " + dupes); + } + // Paper end + + // We care about stable output, so sort, and single thread write. + logger.accept("Sorting"); + Collections.sort(newEntries, this::compare); + + if (!output.getParentFile().exists()) + output.getParentFile().mkdirs(); + + seen.clear(); + + PROGRESS.setMaxProgress(newEntries.size()); + PROGRESS.setStep("Writing output"); + + logger.accept("Writing Output: " + output.getAbsolutePath()); + try (OutputStream fos = new BufferedOutputStream(Files.newOutputStream(output.toPath())); + ZipOutputStream zos = new ZipOutputStream(fos)) { + + int amount = 0; + for (Entry e : newEntries) { + String name = e.getName(); + int idx = name.lastIndexOf('/'); + if (idx != -1) + addDirectory(zos, seen, name.substring(0, idx)); + + logger.accept(" " + name); + ZipEntry entry = new ZipEntry(name); + entry.setTime(e.getTime()); + zos.putNextEntry(entry); + zos.write(e.getData()); + zos.closeEntry(); + + if ((++amount) % 10 == 0) { + PROGRESS.setProgress(amount); + } + } + + PROGRESS.setProgress(amount); + } + } catch (final IOException e) { + throw new RuntimeException("Could not write to file " + output.getAbsolutePath(), e); + } finally { + async.shutdown(); + } + } + + private byte[] readAllBytes(InputStream in, long size) throws IOException { + // This program will crash if size exceeds MAX_INT anyway since arrays are limited to 32-bit indices + ByteArrayOutputStream tmp = new ByteArrayOutputStream(size >= 0 ? (int) size : 0); + + byte[] buffer = new byte[8192]; + int read; + while ((read = in.read(buffer)) != -1) { + tmp.write(buffer, 0, read); + } + + return tmp.toByteArray(); + } + + // Tho Directory entries are not strictly necessary, we add them because some bad implementations of Zip extractors + // attempt to extract files without making sure the parents exist. + private void addDirectory(ZipOutputStream zos, Set seen, String path) throws IOException { + if (!seen.add(path)) + return; + + int idx = path.lastIndexOf('/'); + if (idx != -1) + addDirectory(zos, seen, path.substring(0, idx)); + + logger.accept(" " + path + '/'); + ZipEntry dir = new ZipEntry(path + '/'); + dir.setTime(Entry.STABLE_TIMESTAMP); + zos.putNextEntry(dir); + zos.closeEntry(); + } + + private Entry processEntry(final Entry start) { + Entry entry = start; + for (Transformer transformer : RenamerImpl.this.transformers) { + entry = entry.process(transformer); + if (entry == null) + return null; + } + return entry; + } + + private int compare(Entry o1, Entry o2) { + // In order for JarInputStream to work, MANIFEST has to be the first entry, so make it first! + if (MANIFEST_NAME.equals(o1.getName())) + return MANIFEST_NAME.equals(o2.getName()) ? 0 : -1; + if (MANIFEST_NAME.equals(o2.getName())) + return MANIFEST_NAME.equals(o1.getName()) ? 0 : 1; + return o1.getName().compareTo(o2.getName()); + } + + @Override + public void close() throws IOException { + this.sortedClassProvider.close(); + } +} diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java index b532c72ec2c048554e496b4b63afa0e9f9932416..7839e34cbd42e1b77c533b0dede42e0a19daf2a4 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java @@ -1000,6 +1000,7 @@ public final class CraftServer implements Server { this.loadPlugins(); this.enablePlugins(PluginLoadOrder.STARTUP); this.enablePlugins(PluginLoadOrder.POSTWORLD); + if (io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper != null) io.papermc.paper.plugin.PluginInitializerManager.instance().pluginRemapper.pluginsEnabled(); // Paper - Remap plugins this.getPluginManager().callEvent(new ServerLoadEvent(ServerLoadEvent.LoadType.RELOAD)); }