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/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.modules;
import __redirected.__JAXPRedirected;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.lang.management.ManagementFactory;
import java.lang.reflect.InvocationTargetException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.Policy;
import java.security.PrivilegedAction;
import java.security.ProtectionDomain;
import java.security.Provider;
import java.security.Security;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.ServiceConfigurationError;
import java.util.ServiceLoader;
import java.util.logging.LogManager;
import java.util.prefs.Preferences;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.modules.log.JDKModuleLogger;
import org.jboss.modules.log.StreamModuleLogger;
import static java.security.AccessController.doPrivileged;
import static org.jboss.modules.SecurityActions.setContextClassLoader;
/**
* The main entry point of JBoss Modules when run as a JAR on the command line.
*
* @author David M. Lloyd
* @author Jason T. Greene
* @apiviz.exclude
*/
public final class Main {
static {
// Force initialization at the earliest possible point
@SuppressWarnings("unused")
long start = StartTimeHolder.START_TIME;
}
private static final String[] NO_STRINGS = new String[0];
private Main() {
}
private static void usage() {
System.out.println("Usage: java [-jvmoptions...] -jar " + getJarName() + ".jar [-options...] [args...]");
System.out.println(" java [-jvmoptions...] -jar " + getJarName() + ".jar [-options...] -jar [args...]");
System.out.println(" java [-jvmoptions...] -jar " + getJarName() + ".jar [-options...] -cp [args...]");
System.out.println(" java [-jvmoptions...] -jar " + getJarName() + ".jar [-options...] -class [args...]");
System.out.println(" java [-jvmoptions...] -jar " + getJarName() + ".jar -addindex [-modify] ");
System.out.println("where is a valid module specification string");
System.out.println("and options include:");
System.out.println(" -help Display this message");
System.out.println(" -mp, -modulepath ");
System.out.println(" A list of directories, separated by '" + File.pathSeparator + "', where modules may be located");
System.out.println(" If not specified, the value of the \"module.path\" system property is used");
System.out.println(" -class Specify that the final argument is a");
System.out.println(" class to load from the class path; not compatible with -jar");
System.out.println(" -cp,-classpath ");
System.out.println(" A search path for class files; implies -class");
System.out.println(" -dep,-dependencies [,,...]");
System.out.println(" A list of module dependencies to add to the class path;");
System.out.println(" requires -class or -cp");
System.out.println(" -deptree Print the dependency tree of the given module instead of running it");
System.out.println(" -debuglog Enable debug mode output to System.out during bootstrap before any logging manager is installed");
System.out.println(" -jar Specify that the final argument is the name of a");
System.out.println(" JAR file to run as a module; not compatible with -class");
System.out.println(" -jaxpmodule ");
System.out.println(" The default JAXP implementation to use of the JDK");
System.out.println(" -secmgr Run with a security manager installed; not compatible with -secmgrmodule");
System.out.println(" -secmgrmodule ");
System.out.println(" Run with a security manager module; not compatible with -secmgr");
System.out.println(" -add-provider [/]");
System.out.println(" Add a security provider of the given module and class (can be given more than once)");
System.out.println(" -addindex Specify that the final argument is a");
System.out.println(" jar to create an index for");
System.out.println(" -modify Modify the indexes jar in-place");
System.out.println(" -version Print version and exit\n");
}
/**
* Run JBoss Modules.
*
* @param args the command-line arguments
*
* @throws Throwable if an error occurs
*/
public static void main(String[] args) throws Throwable {
final int argsLen = args.length;
String deps = null;
String[] moduleArgs = NO_STRINGS;
String modulePath = null;
String classpath = null;
boolean jar = false;
boolean classpathDefined = false;
boolean classDefined = false;
boolean depTree = false;
String nameArgument = null;
String jaxpModuleName = null;
boolean defaultSecMgr = false;
String secMgrModule = null;
boolean addIndex = false;
boolean modifyInPlace = false;
boolean debuglog = false;
final List addedProviders = new ArrayList<>();
for (int i = 0; i < argsLen; i++) {
final String arg = args[i];
try {
if (arg.charAt(0) == '-') {
// it's an option
if ("-version".equals(arg)) {
System.out.println("JBoss Modules version " + getVersionString());
return;
} else if ("-help".equals(arg)) {
usage();
return;
} else if ("-addindex".equals(arg)) {
addIndex = true;
} else if ("-modify".equals(arg)) {
modifyInPlace = true;
} else if ("-modulepath".equals(arg) || "-mp".equals(arg)) {
if (modulePath != null) {
System.err.println("Module path may only be specified once");
System.exit(1);
}
modulePath = args[++i];
System.setProperty("module.path", modulePath);
} else if ("-config".equals(arg)) {
System.err.println("Config files are no longer supported. Use the -mp option instead");
System.exit(1);
} else if ("-deptree".equals(arg)) {
if (depTree) {
System.err.println("-deptree may only be specified once");
System.exit(1);
}
if (jar) {
System.err.println("-deptree may not be specified with -jar");
System.exit(1);
}
if (classDefined) {
System.err.println("-deptree may not be specified with -class");
System.exit(1);
}
if (classpathDefined) {
System.err.println("-deptree may not be specified with -classpath");
System.exit(1);
}
depTree = true;
} else if ("-debuglog".equals(arg)) {
debuglog = true;
} else if ("-jaxpmodule".equals(arg)) {
jaxpModuleName = args[++i];
} else if ("-jar".equals(arg)) {
if (jar) {
System.err.println("-jar flag may only be specified once");
System.exit(1);
}
if (classpathDefined) {
System.err.println("-cp/-classpath may not be specified with -jar");
System.exit(1);
}
if (classDefined) {
System.err.println("-class may not be specified with -jar");
System.exit(1);
}
if (depTree) {
System.err.println("-deptree may not be specified with -jar");
System.exit(1);
}
jar = true;
} else if ("-cp".equals(arg) || "-classpath".equals(arg)) {
if (classpathDefined) {
System.err.println("-cp or -classpath may only be specified once.");
System.exit(1);
}
if (classDefined) {
System.err.println("-class may not be specified with -cp/classpath");
System.exit(1);
}
if (jar) {
System.err.println("-cp/-classpath may not be specified with -jar");
System.exit(1);
}
if (depTree) {
System.err.println("-deptree may not be specified with -classpath");
System.exit(1);
}
classpathDefined = true;
classpath = args[++i];
doPrivileged(new PropertyWriteAction("java.class.path", classpath));
} else if ("-dep".equals(arg) || "-dependencies".equals(arg)) {
if (deps != null) {
System.err.println("-dep or -dependencies may only be specified once.");
System.exit(1);
}
deps = args[++i];
} else if ("-class".equals(arg)) {
if (classDefined) {
System.err.println("-class flag may only be specified once");
System.exit(1);
}
if (classpathDefined) {
System.err.println("-class may not be specified with -cp/classpath");
System.exit(1);
}
if (jar) {
System.err.println("-class may not be specified with -jar");
System.exit(1);
}
if (depTree) {
System.err.println("-deptree may not be specified with -class");
System.exit(1);
}
classDefined = true;
} else if ("-logmodule".equals(arg)) {
System.err.println("WARNING: -logmodule is deprecated. Please use the system property 'java.util.logging.manager' or the 'java.util.logging.LogManager' service loader.");
i++;
} else if ("-secmgr".equals(arg)) {
if (defaultSecMgr) {
System.err.println("-secmgr may only be specified once");
System.exit(1);
}
if (secMgrModule != null) {
System.err.println("-secmgr may not be specified when -secmgrmodule is given");
System.exit(1);
}
defaultSecMgr = true;
} else if ("-secmgrmodule".equals(arg)) {
if (secMgrModule != null) {
System.err.println("-secmgrmodule may only be specified once");
System.exit(1);
}
if (defaultSecMgr) {
System.err.println("-secmgrmodule may not be specified when -secmgr is given");
System.exit(1);
}
secMgrModule = args[++ i];
} else if ("-add-provider".equals(arg)) {
addedProviders.add(args[++ i]);
} else {
System.err.printf("Invalid option '%s'\n", arg);
usage();
System.exit(1);
}
} else {
// it's the module specification
nameArgument = arg;
int cnt = argsLen - i - 1;
moduleArgs = new String[cnt];
System.arraycopy(args, i + 1, moduleArgs, 0, cnt);
break;
}
} catch (IndexOutOfBoundsException e) {
System.err.printf("Argument expected for option %s\n", arg);
usage();
System.exit(1);
}
}
if (modifyInPlace && ! addIndex) {
System.err.println("-modify requires -addindex");
usage();
System.exit(1);
}
if (addIndex) {
System.err.println("WARNING: -addindex is deprecated and may be removed in a future release");
if (nameArgument == null) {
System.err.println("-addindex requires a target JAR name");
usage();
System.exit(1);
}
if (modulePath != null) {
System.err.println("-mp may not be used with -addindex");
usage();
System.exit(1);
}
if (jaxpModuleName != null) {
System.err.println("-jaxpModuleName may not be used with -addindex");
usage();
System.exit(1);
}
if (classpathDefined) {
System.err.println("-cp or -classpath may not be used with -addindex");
usage();
System.exit(1);
}
if (classDefined) {
System.err.println("-class may not be used with -addindex");
usage();
System.exit(1);
}
if (jar) {
System.err.println("-jar may not be used with -addindex");
usage();
System.exit(1);
}
if (deps != null) {
System.err.println("-deps may not be used with -addindex");
usage();
System.exit(1);
}
if (defaultSecMgr) {
System.err.println("-secmgr may not be used with -addindex");
usage();
System.exit(1);
}
if (secMgrModule != null) {
System.err.println("-secmgrmodule may not be used with -addindex");
usage();
System.exit(1);
}
if (! addedProviders.isEmpty()) {
System.err.println("-add-provider may not be used with -addindex");
}
if (depTree) {
System.err.println("-deptree may not be used with -addindex");
usage();
System.exit(1);
}
JarFileResourceLoader.addInternalIndex(new File(nameArgument), modifyInPlace);
return;
}
if (deps != null && ! classDefined && ! classpathDefined) {
System.err.println("-deps may only be specified when -cp/-classpath or -class is in use");
System.exit(1);
}
// run the module
if (nameArgument == null) {
if (classDefined || classpathDefined) {
System.err.println("No class name specified");
} else if (jar) {
System.err.println("No JAR specified");
} else {
System.err.println("No module specified");
}
usage();
System.exit(1);
}
if (depTree) {
DependencyTreeViewer.print(new PrintWriter(System.out), nameArgument, LocalModuleFinder.getRepoRoots(true));
System.exit(0);
}
if(debuglog) {
// Install the StreamModuleLogger on System.out to capture bootstrap messages
Module.setModuleLogger(new StreamModuleLogger(System.out));
}
final ModuleLoader loader;
final ModuleLoader environmentLoader;
environmentLoader = DefaultBootModuleLoaderHolder.INSTANCE;
final Path rootPath = Paths.get("").toAbsolutePath();
final String moduleName;
final String className;
if (jar) {
loader = new ModuleLoader(new FileSystemClassPathModuleFinder(environmentLoader));
moduleName = rootPath.resolve(nameArgument).normalize().toString();
className = null;
} else if (classpathDefined || classDefined) {
final String[] items;
if (classpath != null) {
AccessController.doPrivileged(new PropertyWriteAction("java.class.path", classpath));
items = classpath.split(Pattern.quote(File.pathSeparator));
} else {
items = NO_STRINGS;
}
for (int i = 0; i < items.length; i++) {
items[i] = rootPath.resolve(items[i]).normalize().toString();
}
loader = new DelegatingModuleLoader(environmentLoader, new ClassPathModuleFinder(environmentLoader, items, deps, nameArgument));
moduleName = "";
className = null;
} else {
loader = environmentLoader;
final int idx = nameArgument.lastIndexOf('/');
if (idx != -1) {
moduleName = nameArgument.substring(0, idx);
className = nameArgument.substring(idx + 1);
} else {
moduleName = nameArgument;
className = null;
}
}
Module.initBootModuleLoader(environmentLoader);
if (jaxpModuleName != null) {
__JAXPRedirected.changeAll(jaxpModuleName, Module.getBootModuleLoader());
} else {
__JAXPRedirected.changeAll(moduleName, Module.getBootModuleLoader());
}
if (moduleName == null) {
return;
}
final Module module;
try {
module = loader.loadModule(moduleName);
} catch (ModuleNotFoundException e) {
e.printStackTrace(System.err);
System.exit(1);
return;
}
final String ourJavaVersion = doPrivileged(new PropertyReadAction("java.specification.version", "1.6"));
final String requireJavaVersion = module.getProperty("jboss.require-java-version", ourJavaVersion);
final Pattern versionPattern = Pattern.compile("(?:1\\.)?(\\d+)");
final Matcher requireMatcher = versionPattern.matcher(requireJavaVersion);
final Matcher ourMatcher = versionPattern.matcher(ourJavaVersion);
if (requireMatcher.matches() && ourMatcher.matches() && Integer.parseInt(requireMatcher.group(1)) > Integer.parseInt(ourMatcher.group(1))) {
System.err.printf("This application requires Java specification version %s or later to run (this Java virtual machine implements specification version %s)%n", requireJavaVersion, ourJavaVersion);
System.exit(1);
}
ModularURLStreamHandlerFactory.addHandlerModule(module);
ModularContentHandlerFactory.addHandlerModule(module);
// at this point, having a security manager already installed will prevent correct operation.
final SecurityManager existingSecMgr = System.getSecurityManager();
if (existingSecMgr != null) {
System.err.println("An existing security manager was detected. You must use the -secmgr switch to start with a security manager.");
System.exit(1);
return; // not reached
}
try {
final Iterator iterator = module.loadService(Policy.class).iterator();
if (iterator.hasNext()) {
Policy.setPolicy(iterator.next());
}
} catch (Exception ignored) {}
// configure policy so that if SM is enabled, modules can still function
final ModulesPolicy policy = new ModulesPolicy(Policy.getPolicy());
Policy.setPolicy(policy);
if (secMgrModule != null) {
final Module loadedModule;
try {
loadedModule = environmentLoader.loadModule(secMgrModule);
} catch (ModuleNotFoundException e) {
e.printStackTrace(System.err);
System.exit(1);
return;
}
final Iterator iterator = ServiceLoader.load(SecurityManager.class, loadedModule.getClassLoaderPrivate()).iterator();
if (iterator.hasNext()) {
System.setSecurityManager(iterator.next());
} else {
System.err.println("No security manager found in module " + secMgrModule);
System.exit(1);
}
}
if (defaultSecMgr) {
final Iterator iterator = module.loadService(SecurityManager.class).iterator();
if (iterator.hasNext()) {
System.setSecurityManager(iterator.next());
} else {
System.setSecurityManager(new SecurityManager());
}
}
final ModuleClassLoader bootClassLoader = module.getClassLoaderPrivate();
setContextClassLoader(bootClassLoader);
final String serviceName = getServiceName(bootClassLoader, "java.util.prefs.PreferencesFactory");
if (serviceName != null) {
final String old = System.setProperty("java.util.prefs.PreferencesFactory", serviceName);
try {
Preferences.systemRoot();
} finally {
if (old == null) {
System.clearProperty("java.util.prefs.PreferencesFactory");
} else {
System.setProperty("java.util.prefs.PreferencesFactory", old);
}
}
}
final String logManagerName = getServiceName(bootClassLoader, "java.util.logging.LogManager");
if (logManagerName != null) {
System.setProperty("java.util.logging.manager", logManagerName);
if (LogManager.getLogManager().getClass() == LogManager.class) {
System.err.println("WARNING: Failed to load the specified log manager class " + logManagerName);
} else {
Module.setModuleLogger(new JDKModuleLogger());
}
}
final String mbeanServerBuilderName = getServiceName(bootClassLoader, "javax.management.MBeanServerBuilder");
if (mbeanServerBuilderName != null) {
System.setProperty("javax.management.builder.initial", mbeanServerBuilderName);
// Initialize the platform mbean server
ManagementFactory.getPlatformMBeanServer();
}
for (String addedProvider : addedProviders) {
final int idx = addedProvider.indexOf('/');
if (idx != -1) {
final String provModule = addedProvider.substring(0, idx);
final String provClazz = addedProvider.substring(idx + 1);
final Class providerClass;
try {
providerClass = Class.forName(provClazz, false, environmentLoader.loadModule(provModule).getClassLoaderPrivate()).asSubclass(Provider.class);
// each provider needs permission to install itself
doPrivileged(new AddProviderAction(providerClass.getConstructor().newInstance()), getProviderContext(providerClass));
} catch (Exception e) {
Module.getModuleLogger().trace(e, "Failed to initialize a security provider");
}
} else {
final ModuleClassLoader classLoader = environmentLoader.loadModule(addedProvider).getClassLoaderPrivate();
final ServiceLoader providerServiceLoader = ServiceLoader.load(Provider.class, classLoader);
final Iterator iterator = providerServiceLoader.iterator();
for (;;) try {
if (! (iterator.hasNext())) {
Module.getModuleLogger().trace("Module \"%s\" did not contain a security provider service", addedProvider);
break;
}
final Provider provider = iterator.next();
final Class providerClass = provider.getClass();
// each provider needs permission to install itself
doPrivileged(new AddProviderAction(provider), getProviderContext(providerClass));
} catch (ServiceConfigurationError | RuntimeException e) {
Module.getModuleLogger().trace(e, "Failed to initialize a security provider");
}
}
}
final ServiceLoader providerServiceLoader = ServiceLoader.load(Provider.class, bootClassLoader);
Iterator iterator = providerServiceLoader.iterator();
for (;;) try {
if (! (iterator.hasNext())) break;
final Provider provider = iterator.next();
final Class providerClass = provider.getClass();
// each provider needs permission to install itself
doPrivileged(new AddProviderAction(provider), getProviderContext(providerClass));
} catch (ServiceConfigurationError | RuntimeException e) {
Module.getModuleLogger().trace(e, "Failed to initialize a security provider");
}
ModuleLoader.installMBeanServer();
final ArrayList argsList = new ArrayList<>(moduleArgs.length);
Collections.addAll(argsList, moduleArgs);
final ServiceLoader preMainServiceLoader = ServiceLoader.load(PreMain.class, bootClassLoader);
for (PreMain preMain : preMainServiceLoader) {
preMain.run(argsList);
}
try {
final String[] argsArray = argsList.toArray(NO_STRINGS);
if (className != null) module.run(className, argsArray); else module.run(argsArray);
} catch (InvocationTargetException e) {
throw e.getCause();
}
return;
}
private static AccessControlContext getProviderContext(final Class providerClass) {
return new AccessControlContext(new ProtectionDomain[] { providerClass.getProtectionDomain() });
}
private static String getServiceName(ClassLoader classLoader, String className) throws IOException {
try (final InputStream stream = classLoader.getResourceAsStream("META-INF/services/" + className)) {
if ( stream == null ) return null;
final BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
String line;
while ((line = reader.readLine()) != null) {
final int i = line.indexOf('#');
if (i != -1) {
line = line.substring(0, i);
}
line = line.trim();
if (line.length() == 0) continue;
return line;
}
return null;
}
}
private static final String JAR_NAME;
private static final String VERSION_STRING;
static {
Properties versionProps = new Properties();
String jarName = "(unknown)";
String versionString = "(unknown)";
try (InputStream stream = Main.class.getResourceAsStream("version.properties")) {
if (stream != null) try (InputStreamReader reader = new InputStreamReader(stream, StandardCharsets.UTF_8)) {
versionProps.load(reader);
jarName = versionProps.getProperty("jarName", jarName);
versionString = versionProps.getProperty("version", versionString);
}
} catch (IOException ignored) {
}
JAR_NAME = jarName;
VERSION_STRING = versionString;
}
/**
* Get the name of the JBoss Modules JAR.
*
* @return the name
*/
public static String getJarName() {
return JAR_NAME;
}
/**
* Get the version string of JBoss Modules.
*
* @return the version string
*/
public static String getVersionString() {
return VERSION_STRING;
}
static final class AddProviderAction implements PrivilegedAction {
private final Provider provider;
AddProviderAction(final Provider provider) {
this.provider = provider;
}
public Void run() {
Security.addProvider(provider);
return null;
}
}
}
