diff options
Diffstat (limited to 'bundles/org.eclipse.osgi/core/adaptor/org/eclipse/osgi/framework/util/SecureAction.java')
| -rw-r--r-- | bundles/org.eclipse.osgi/core/adaptor/org/eclipse/osgi/framework/util/SecureAction.java | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/bundles/org.eclipse.osgi/core/adaptor/org/eclipse/osgi/framework/util/SecureAction.java b/bundles/org.eclipse.osgi/core/adaptor/org/eclipse/osgi/framework/util/SecureAction.java deleted file mode 100644 index ad9ed1c6d..000000000 --- a/bundles/org.eclipse.osgi/core/adaptor/org/eclipse/osgi/framework/util/SecureAction.java +++ /dev/null @@ -1,418 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2003, 2006 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ - -package org.eclipse.osgi.framework.util; - -import java.io.*; -import java.net.*; -import java.security.*; -import java.util.Properties; -import java.util.zip.ZipFile; -import org.eclipse.osgi.framework.internal.core.AbstractBundle; -import org.eclipse.osgi.framework.internal.core.FrameworkProperties; -import org.osgi.framework.*; -import org.osgi.util.tracker.ServiceTracker; - -/** - * Utility class to execute common privileged code. - * @since 3.1 - */ -public class SecureAction { - // make sure we use the correct controlContext; - private AccessControlContext controlContext; - - // This ClassLoader is used in loadSystemClass if System.getClassLoader() returns null - static final ClassLoader bootClassLoader = (ClassLoader) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return new ClassLoader(null) { - // parentless ClassLoader - }; - } - }); - - /* - * Package privaet constructor a new SecureAction object. - * The constructed SecureAction object uses the caller's AccessControlContext - * to perform security checks - */ - SecureAction() { - // save the control context to be used. - this.controlContext = AccessController.getContext(); - } - - /** - * Creates a privileged action that can be used to construct a SecureAction object. - * The recommended way to construct a SecureAction object is the following: <p> - * <pre> - * SecureAction secureAction = (SecureAction) AccessController.doPrivileged(SecureAction.createSecureAction()); - * </pre> - * @return a privileged action object that can be used to construct a SecureAction object. - */ - public static PrivilegedAction createSecureAction() { - return new PrivilegedAction() { - public Object run() { - return new SecureAction(); - } - }; - } - - /** - * Returns a system property. Same as calling - * System.getProperty(String). - * @param property the property key. - * @return the value of the property or null if it does not exist. - */ - public String getProperty(final String property) { - if (System.getSecurityManager() == null) - return FrameworkProperties.getProperty(property); - return (String) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return FrameworkProperties.getProperty(property); - } - }, controlContext); - } - - /** - * Returns a system property. Same as calling - * System.getProperty(String,String). - * @param property the property key. - * @param def the default value if the property key does not exist. - * @return the value of the property or the def value if the property - * does not exist. - */ - public String getProperty(final String property, final String def) { - if (System.getSecurityManager() == null) - return FrameworkProperties.getProperty(property, def); - return (String) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return FrameworkProperties.getProperty(property, def); - } - }, controlContext); - } - - /** - * Returns the system properties. Same as calling - * System.getProperties(). - * @return the system properties. - */ - public Properties getProperties() { - if (System.getSecurityManager() == null) - return FrameworkProperties.getProperties(); - return (Properties) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return FrameworkProperties.getProperties(); - } - }, controlContext); - } - - /** - * Creates a FileInputStream from a File. Same as calling - * new FileInputStream(File). - * @param file the File to craete a FileInputStream from. - * @return The FileInputStream. - * @throws FileNotFoundException if the File does not exist. - */ - public FileInputStream getFileInputStream(final File file) throws FileNotFoundException { - if (System.getSecurityManager() == null) - return new FileInputStream(file); - try { - return (FileInputStream) AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws FileNotFoundException { - return new FileInputStream(file); - } - }, controlContext); - } catch (PrivilegedActionException e) { - if (e.getException() instanceof FileNotFoundException) - throw (FileNotFoundException) e.getException(); - throw (RuntimeException) e.getException(); - } - } - - /** - * Creates a FileInputStream from a File. Same as calling - * new FileOutputStream(File,boolean). - * @param file the File to create a FileOutputStream from. - * @param append indicates if the OutputStream should append content. - * @return The FileOutputStream. - * @throws FileNotFoundException if the File does not exist. - */ - public FileOutputStream getFileOutputStream(final File file, final boolean append) throws FileNotFoundException { - if (System.getSecurityManager() == null) - return new FileOutputStream(file.getAbsolutePath(), append); - try { - return (FileOutputStream) AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws FileNotFoundException { - return new FileOutputStream(file.getAbsolutePath(), append); - } - }, controlContext); - } catch (PrivilegedActionException e) { - if (e.getException() instanceof FileNotFoundException) - throw (FileNotFoundException) e.getException(); - throw (RuntimeException) e.getException(); - } - } - - /** - * Returns the length of a file. Same as calling - * file.length(). - * @param file a file object - * @return the length of a file. - */ - public long length(final File file) { - if (System.getSecurityManager() == null) - return file.length(); - return ((Long) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return new Long(file.length()); - } - }, controlContext)).longValue(); - } - - /** - * Returns true if a file exists, otherwise false is returned. Same as calling - * file.exists(). - * @param file a file object - * @return true if a file exists, otherwise false - */ - public boolean exists(final File file) { - if (System.getSecurityManager() == null) - return file.exists(); - return ((Boolean) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return file.exists() ? Boolean.TRUE : Boolean.FALSE; - } - }, controlContext)).booleanValue(); - } - - /** - * Returns true if a file is a directory, otherwise false is returned. Same as calling - * file.isDirectory(). - * @param file a file object - * @return true if a file is a directory, otherwise false - */ - public boolean isDirectory(final File file) { - if (System.getSecurityManager() == null) - return file.isDirectory(); - return ((Boolean) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return file.isDirectory() ? Boolean.TRUE : Boolean.FALSE; - } - }, controlContext)).booleanValue(); - } - - /** - * Returns a file's last modified stamp. Same as calling - * file.lastModified(). - * @param file a file object - * @return a file's last modified stamp. - */ - public long lastModified(final File file) { - if (System.getSecurityManager() == null) - return file.lastModified(); - return ((Long) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return new Long(file.lastModified()); - } - }, controlContext)).longValue(); - } - - /** - * Returns a file's list. Same as calling - * file.list(). - * @param file a file object - * @return a file's list. - */ - public String[] list(final File file) { - if (System.getSecurityManager() == null) - return file.list(); - return (String[]) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return file.list(); - } - }, controlContext); - } - - /** - * Returns a ZipFile. Same as calling - * new ZipFile(file) - * @param file the file to get a ZipFile for - * @return a ZipFile - * @throws IOException if an error occured - */ - public ZipFile getZipFile(final File file) throws IOException { - if (System.getSecurityManager() == null) - return new ZipFile(file); - try { - return (ZipFile) AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws IOException { - return new ZipFile(file); - } - }, controlContext); - } catch (PrivilegedActionException e) { - if (e.getException() instanceof IOException) - throw (IOException) e.getException(); - throw (RuntimeException) e.getException(); - } - } - - /** - * Gets a URL. Same a calling - * {@link URL#URL(java.lang.String, java.lang.String, int, java.lang.String, java.net.URLStreamHandler)} - * @param protocol the protocol - * @param host the host - * @param port the port - * @param file the file - * @param handler the URLStreamHandler - * @return a URL - * @throws MalformedURLException - */ - public URL getURL(final String protocol, final String host, final int port, final String file, final URLStreamHandler handler) throws MalformedURLException { - if (System.getSecurityManager() == null) - return new URL(protocol, host, port, file, handler); - try { - return (URL) AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws MalformedURLException { - return new URL(protocol, host, port, file, handler); - } - }, controlContext); - } catch (PrivilegedActionException e) { - if (e.getException() instanceof MalformedURLException) - throw (MalformedURLException) e.getException(); - throw (RuntimeException) e.getException(); - } - } - - /** - * Creates a new Thread from a Runnable. Same as calling - * new Thread(target,name). - * @param target the Runnable to create the Thread from. - * @param name The name of the Thread. - * @return The new Thread - */ - public Thread createThread(final Runnable target, final String name) { - if (System.getSecurityManager() == null) - return new Thread(target, name); - return (Thread) AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return new Thread(target, name); - } - }, controlContext); - } - - /** - * Gets a service object. Same as calling - * context.getService(reference) - * @param reference the ServiceReference - * @param context the BundleContext - * @return a service object - */ - public Object getService(final ServiceReference reference, final BundleContext context) { - if (System.getSecurityManager() == null) - return context.getService(reference); - return AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - return context.getService(reference); - } - }, controlContext); - } - - /** - * Returns a Class. Same as calling - * Class.forName(name) - * @param name the name of the class. - * @return a Class - * @throws ClassNotFoundException - */ - public Class forName(final String name) throws ClassNotFoundException { - if (System.getSecurityManager() == null) - return Class.forName(name); - try { - return (Class) AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws Exception { - return Class.forName(name); - } - }, controlContext); - } catch (PrivilegedActionException e) { - if (e.getException() instanceof ClassNotFoundException) - throw (ClassNotFoundException) e.getException(); - throw (RuntimeException) e.getException(); - } - } - - /** - * Returns a Class. - * Tries to load a class from the System ClassLoader or if that doesn't exist tries the boot ClassLoader - * @param name the name of the class. - * @return a Class - * @throws ClassNotFoundException - */ - public Class loadSystemClass(final String name) throws ClassNotFoundException { - if (System.getSecurityManager() == null) { - ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader(); - return (systemClassLoader != null) ? systemClassLoader.loadClass(name) : bootClassLoader.loadClass(name); - } - try { - return (Class) AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws Exception { - ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader(); - return (systemClassLoader != null) ? systemClassLoader.loadClass(name) : bootClassLoader.loadClass(name); - } - }, controlContext); - } catch (PrivilegedActionException e) { - if (e.getException() instanceof ClassNotFoundException) - throw (ClassNotFoundException) e.getException(); - throw (RuntimeException) e.getException(); - } - } - - /** - * Opens a ServiceTracker. Same as calling tracker.open() - * @param tracker the ServiceTracker to open. - */ - public void open(final ServiceTracker tracker) { - if (System.getSecurityManager() == null) { - tracker.open(); - return; - } - AccessController.doPrivileged(new PrivilegedAction() { - public Object run() { - tracker.open(); - return null; - } - }, controlContext); - } - - /** - * Starts a bundle. - * @param bundle the bundle to start - * @param options the start options - * @throws BundleException - */ - public void start(final AbstractBundle bundle, final int options) throws BundleException { - if (System.getSecurityManager() == null) { - bundle.start(options); - return; - } - try { - AccessController.doPrivileged(new PrivilegedExceptionAction() { - public Object run() throws BundleException { - bundle.start(options); - return null; - } - }, controlContext); - return; - } catch (PrivilegedActionException e) { - if (e.getException() instanceof BundleException) - throw (BundleException) e.getException(); - throw (RuntimeException) e.getException(); - } - } -} |