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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
364
src/java.desktop/share/classes/sun/applet/AppletSecurity.java
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364
src/java.desktop/share/classes/sun/applet/AppletSecurity.java
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/*
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* Copyright (c) 1995, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.applet;
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import java.io.File;
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import java.io.FilePermission;
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import java.io.IOException;
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import java.io.FileDescriptor;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.net.SocketPermission;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.HashSet;
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import java.util.StringTokenizer;
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import java.security.*;
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import java.lang.reflect.*;
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import jdk.internal.misc.JavaNetURLClassLoaderAccess;
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import jdk.internal.misc.JavaSecurityAccess;
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import jdk.internal.misc.SharedSecrets;
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import sun.awt.AWTSecurityManager;
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import sun.awt.AppContext;
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import sun.awt.AWTPermissions;
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import sun.security.util.SecurityConstants;
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/**
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* This class defines an applet security policy
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*
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*/
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public
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class AppletSecurity extends AWTSecurityManager {
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private static final JavaNetURLClassLoaderAccess JNUCLA
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= SharedSecrets.getJavaNetURLClassLoaderAccess();
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private static final JavaSecurityAccess JSA = SharedSecrets.getJavaSecurityAccess();
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/**
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* Construct and initialize.
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*/
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public AppletSecurity() {
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reset();
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}
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// Cache to store known restricted packages
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private HashSet<String> restrictedPackages = new HashSet<>();
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/**
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* Reset from Properties
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*/
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public void reset()
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{
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// Clear cache
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restrictedPackages.clear();
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AccessController.doPrivileged(new PrivilegedAction<Object>() {
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public Object run()
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{
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// Enumerate system properties
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Enumeration<?> e = System.getProperties().propertyNames();
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while (e.hasMoreElements())
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{
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String name = (String) e.nextElement();
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if (name != null && name.startsWith("package.restrict.access."))
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{
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String value = System.getProperty(name);
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if (value != null && value.equalsIgnoreCase("true"))
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{
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String pkg = name.substring(24);
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// Cache restricted packages
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restrictedPackages.add(pkg);
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}
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}
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}
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return null;
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}
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});
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}
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/**
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* get the current (first) instance of an AppletClassLoader on the stack.
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*/
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@SuppressWarnings({"deprecation",
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"removal"}) // SecurityManager.currentClassLoader()
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private AppletClassLoader currentAppletClassLoader()
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{
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// try currentClassLoader first
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ClassLoader loader = currentClassLoader();
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if ((loader == null) || (loader instanceof AppletClassLoader))
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return (AppletClassLoader)loader;
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// if that fails, get all the classes on the stack and check them.
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Class<?>[] context = getClassContext();
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for (int i = 0; i < context.length; i++) {
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loader = context[i].getClassLoader();
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if (loader instanceof AppletClassLoader)
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return (AppletClassLoader)loader;
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}
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/*
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* fix bug # 6433620 the logic here is : try to find URLClassLoader from
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* class context, check its AccessControlContext to see if
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* AppletClassLoader is in stack when it's created. for this kind of
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* URLClassLoader, return the AppContext associated with the
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* AppletClassLoader.
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*/
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for (int i = 0; i < context.length; i++) {
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final ClassLoader currentLoader = context[i].getClassLoader();
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if (currentLoader instanceof URLClassLoader) {
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URLClassLoader ld = (URLClassLoader)currentLoader;
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loader = AccessController.doPrivileged(
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new PrivilegedAction<ClassLoader>() {
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public ClassLoader run() {
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AccessControlContext acc = null;
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ProtectionDomain[] pds = null;
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try {
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acc = JNUCLA.getAccessControlContext(ld);
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if (acc == null) {
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return null;
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}
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pds = JSA.getProtectDomains(acc);
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if (pds == null) {
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return null;
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}
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} catch (Exception e) {
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throw new UnsupportedOperationException(e);
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}
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for (int i=0; i<pds.length; i++) {
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ClassLoader cl = pds[i].getClassLoader();
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if (cl instanceof AppletClassLoader) {
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return cl;
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}
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}
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return null;
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}
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});
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if (loader != null) {
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return (AppletClassLoader) loader;
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}
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}
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}
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// if that fails, try the context class loader
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loader = Thread.currentThread().getContextClassLoader();
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if (loader instanceof AppletClassLoader)
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return (AppletClassLoader)loader;
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// no AppletClassLoaders on the stack
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return (AppletClassLoader)null;
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}
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/**
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* Returns true if this threadgroup is in the applet's own thread
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* group. This will return false if there is no current class
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* loader.
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*/
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protected boolean inThreadGroup(ThreadGroup g) {
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if (currentAppletClassLoader() == null)
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return false;
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else
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return getThreadGroup().parentOf(g);
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}
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/**
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* Returns true of the threadgroup of thread is in the applet's
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* own threadgroup.
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*/
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protected boolean inThreadGroup(Thread thread) {
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return inThreadGroup(thread.getThreadGroup());
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}
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/**
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* Applets are not allowed to manipulate threads outside
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* applet thread groups. However a terminated thread no longer belongs
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* to any group.
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*/
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public void checkAccess(Thread t) {
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/* When multiple applets is reloaded simultaneously, there will be
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* multiple invocations to this method from plugin's SecurityManager.
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* This method should not be synchronized to avoid deadlock when
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* a page with multiple applets is reloaded
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*/
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if ((t.getState() != Thread.State.TERMINATED) && !inThreadGroup(t)) {
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checkPermission(SecurityConstants.MODIFY_THREAD_PERMISSION);
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}
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}
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private boolean inThreadGroupCheck = false;
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/**
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* Applets are not allowed to manipulate thread groups outside
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* applet thread groups.
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*/
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public synchronized void checkAccess(ThreadGroup g) {
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if (inThreadGroupCheck) {
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// if we are in a recursive check, it is because
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// inThreadGroup is calling appletLoader.getThreadGroup
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// in that case, only do the super check, as appletLoader
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// has a begin/endPrivileged
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checkPermission(SecurityConstants.MODIFY_THREADGROUP_PERMISSION);
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} else {
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try {
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inThreadGroupCheck = true;
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if (!inThreadGroup(g)) {
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checkPermission(SecurityConstants.MODIFY_THREADGROUP_PERMISSION);
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}
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} finally {
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inThreadGroupCheck = false;
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}
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}
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}
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/**
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* Throws a {@code SecurityException} if the
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* calling thread is not allowed to access the package specified by
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* the argument.
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* <p>
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* This method is used by the {@code loadClass} method of class
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* loaders.
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* <p>
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* The {@code checkPackageAccess} method for class
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* {@code SecurityManager} calls
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* {@code checkPermission} with the
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* {@code RuntimePermission("accessClassInPackage."+ pkgname)}
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* permission.
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*
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* @param pkgname the package name.
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* @exception SecurityException if the caller does not have
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* permission to access the specified package.
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* @see java.lang.ClassLoader#loadClass(java.lang.String, boolean)
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*/
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public void checkPackageAccess(final String pkgname) {
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// first see if the VM-wide policy allows access to this package
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super.checkPackageAccess(pkgname);
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// now check the list of restricted packages
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for (Iterator<String> iter = restrictedPackages.iterator(); iter.hasNext();)
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{
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String pkg = iter.next();
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// Prevent matching "sun" and "sunir" even if they
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// starts with similar beginning characters
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//
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if (pkgname.equals(pkg) || pkgname.startsWith(pkg + "."))
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{
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checkPermission(new java.lang.RuntimePermission
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("accessClassInPackage." + pkgname));
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}
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}
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}
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/**
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* Tests if a client can get access to the AWT event queue.
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* <p>
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* This method calls {@code checkPermission} with the
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* {@code AWTPermission("accessEventQueue")} permission.
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*
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* @since 1.1
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* @exception SecurityException if the caller does not have
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* permission to access the AWT event queue.
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*/
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@SuppressWarnings({"deprecation",
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"removal"}) // SecurityManager.checkAwtEventQueueAccess
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public void checkAwtEventQueueAccess() {
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AppContext appContext = AppContext.getAppContext();
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AppletClassLoader appletClassLoader = currentAppletClassLoader();
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if (AppContext.isMainContext(appContext) && (appletClassLoader != null)) {
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// If we're about to allow access to the main EventQueue,
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// and anything untrusted is on the class context stack,
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// disallow access.
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super.checkPermission(AWTPermissions.CHECK_AWT_EVENTQUEUE_PERMISSION);
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}
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} // checkAwtEventQueueAccess()
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/**
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* Returns the thread group of the applet. We consult the classloader
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* if there is one.
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*/
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public ThreadGroup getThreadGroup() {
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/* If any applet code is on the execution stack, we return
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that applet's ThreadGroup. Otherwise, we use the default
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behavior. */
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AppletClassLoader appletLoader = currentAppletClassLoader();
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ThreadGroup loaderGroup = (appletLoader == null) ? null
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: appletLoader.getThreadGroup();
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if (loaderGroup != null) {
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return loaderGroup;
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} else {
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return super.getThreadGroup();
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}
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} // getThreadGroup()
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/**
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* Get the AppContext corresponding to the current context.
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* The default implementation returns null, but this method
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* may be overridden by various SecurityManagers
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* (e.g. AppletSecurity) to index AppContext objects by the
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* calling context.
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*
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* @return the AppContext corresponding to the current context.
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* @see sun.awt.AppContext
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* @see java.lang.SecurityManager
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* @since 1.2.1
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*/
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public AppContext getAppContext() {
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AppletClassLoader appletLoader = currentAppletClassLoader();
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if (appletLoader == null) {
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return null;
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} else {
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AppContext context = appletLoader.getAppContext();
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// context == null when some thread in applet thread group
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// has not been destroyed in AppContext.dispose()
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if (context == null) {
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throw new SecurityException("Applet classloader has invalid AppContext");
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}
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return context;
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}
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}
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} // class AppletSecurity
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