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Diffstat (limited to 'src/jdk/internal/dynalink/beans/CheckRestrictedPackage.java')
| -rw-r--r-- | src/jdk/internal/dynalink/beans/CheckRestrictedPackage.java | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/src/jdk/internal/dynalink/beans/CheckRestrictedPackage.java b/src/jdk/internal/dynalink/beans/CheckRestrictedPackage.java deleted file mode 100644 index 49723a12..00000000 --- a/src/jdk/internal/dynalink/beans/CheckRestrictedPackage.java +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Copyright (c) 2010, 2013, 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. - */ - -/* - * This file is available under and governed by the GNU General Public - * License version 2 only, as published by the Free Software Foundation. - * However, the following notice accompanied the original version of this - * file, and Oracle licenses the original version of this file under the BSD - * license: - */ -/* - Copyright 2009-2013 Attila Szegedi - - Licensed under both the Apache License, Version 2.0 (the "Apache License") - and the BSD License (the "BSD License"), with licensee being free to - choose either of the two at their discretion. - - You may not use this file except in compliance with either the Apache - License or the BSD License. - - If you choose to use this file in compliance with the Apache License, the - following notice applies to you: - - You may obtain a copy of the Apache 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. - - If you choose to use this file in compliance with the BSD License, the - following notice applies to you: - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are - met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the copyright holder nor the names of - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER - BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -package jdk.internal.dynalink.beans; - -import java.lang.reflect.Modifier; -import java.security.AccessControlContext; -import java.security.AccessController; -import java.security.Permissions; -import java.security.PrivilegedAction; -import java.security.ProtectionDomain; - -/** - * A utility class to check whether a given class is in a package with restricted access e.g. "sun.*" etc. - */ -class CheckRestrictedPackage { - private static final AccessControlContext NO_PERMISSIONS_CONTEXT = createNoPermissionsContext(); - - /** - * Returns true if the class is either not public, or it resides in a package with restricted access. - * @param clazz the class to test - * @return true if the class is either not public, or it resides in a package with restricted access. - */ - static boolean isRestrictedClass(final Class<?> clazz) { - if(!Modifier.isPublic(clazz.getModifiers())) { - // Non-public classes are always restricted - return true; - } - final SecurityManager sm = System.getSecurityManager(); - if(sm == null) { - // No further restrictions if we don't have a security manager - return false; - } - final String name = clazz.getName(); - final int i = name.lastIndexOf('.'); - if (i == -1) { - // Classes in default package are never restricted - return false; - } - // Do a package access check from within an access control context with no permissions - try { - AccessController.doPrivileged(new PrivilegedAction<Void>() { - @Override - public Void run() { - sm.checkPackageAccess(name.substring(0, i)); - return null; - } - }, NO_PERMISSIONS_CONTEXT); - } catch(final SecurityException e) { - return true; - } - return false; - } - - private static AccessControlContext createNoPermissionsContext() { - return new AccessControlContext(new ProtectionDomain[] { new ProtectionDomain(null, new Permissions()) }); - } -} |