/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package com.sun.script.javascript;import java.util.*;import sun.org.mozilla.javascript.internal.*;/** * This class prevents script access to certain sensitive classes. * Note that this class checks over and above SecurityManager. i.e., although * a SecurityManager would pass, class shutter may still prevent access. * * @author A. Sundararajan * @since 1.6 */final class RhinoClassShutter implements ClassShutter { private static Map<String, Boolean> protectedClasses; private static RhinoClassShutter theInstance; private RhinoClassShutter() { } static synchronized ClassShutter getInstance() { if (theInstance == null) { theInstance = new RhinoClassShutter(); protectedClasses = new HashMap<String, Boolean>(); // For now, we just have AccessController. Allowing scripts // to this class will allow it to execute doPrivileged in // bootstrap context. We can add more classes for other reasons. protectedClasses.put("java.security.AccessController", Boolean.TRUE); } return theInstance; } public boolean visibleToScripts(String fullClassName) { // first do the security check. SecurityManager sm = System.getSecurityManager(); if (sm != null) { int i = fullClassName.lastIndexOf("."); if (i != -1) { try { sm.checkPackageAccess(fullClassName.substring(0, i)); } catch (SecurityException se) { return false; } } } // now, check is it a protected class. return protectedClasses.get(fullClassName) == null; }}
/*
* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.script.javascript;
import java.util.*;
import sun.org.mozilla.javascript.internal.*;
/**
* This class prevents script access to certain sensitive classes.
* Note that this class checks over and above SecurityManager. i.e., although
* a SecurityManager would pass, class shutter may still prevent access.
*
* @author A. Sundararajan
* @since 1.6
*/
final class RhinoClassShutter implements ClassShutter {
private static Map<String, Boolean> protectedClasses;
private static RhinoClassShutter theInstance;
private RhinoClassShutter() {
}
static synchronized ClassShutter getInstance() {
if (theInstance == null) {
theInstance = new RhinoClassShutter();
protectedClasses = new HashMap<String, Boolean>();
// For now, we just have AccessController. Allowing scripts
// to this class will allow it to execute doPrivileged in
// bootstrap context. We can add more classes for other reasons.
protectedClasses.put("java.security.AccessController", Boolean.TRUE);
}
return theInstance;
}
public boolean visibleToScripts(String fullClassName) {
// first do the security check.
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
int i = fullClassName.lastIndexOf(".");
if (i != -1) {
try {
sm.checkPackageAccess(fullClassName.substring(0, i));
} catch (SecurityException se) {
return false;
}
}
}
// now, check is it a protected class.
return protectedClasses.get(fullClassName) == null;
}
}