| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.netbeans.core.execution; |
| |
| import java.security.ProtectionDomain; |
| import java.security.AccessControlContext; |
| import java.security.AccessController; |
| import java.security.PermissionCollection; |
| import java.lang.reflect.Field; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** Tries to get an IOProtectionDomain from an AccessControlContext. |
| * |
| * @author Ales Novak |
| */ |
| class AccController { |
| |
| /** array of ProtectionDomains */ |
| static Field context; |
| |
| static void init() { |
| } |
| |
| static Field getContextField() throws Exception { |
| if (context == null) { |
| Field ctx; |
| try { |
| ctx = AccessControlContext.class.getDeclaredField("context"); // NOI18N |
| } catch (NoSuchFieldException nsfe) { // IBM JDK1.5 has different field |
| ctx = AccessControlContext.class.getDeclaredField("domainsArray"); // NOI18N |
| } |
| ctx.setAccessible(true); |
| context = ctx; |
| } |
| return context; |
| } |
| |
| |
| static ProtectionDomain[] getDomains(AccessControlContext acc) throws Exception { |
| Object o = getContextField().get(acc); |
| if (o.getClass() == Object[].class) { // 1.2.1 fix |
| Object[] array = (Object[]) o; |
| ProtectionDomain[] domains = new ProtectionDomain[array.length]; |
| for (int i = 0; i < array.length; i++) { |
| domains[i] = (ProtectionDomain) array[i]; |
| } |
| return domains; |
| } |
| return (ProtectionDomain[]) o; |
| } |
| |
| /** @return an IOPermissionCollection or <tt>null</tt> if not found */ |
| static IOPermissionCollection getIOPermissionCollection() { |
| return getIOPermissionCollection(AccessController.getContext()); |
| } |
| |
| /** @return an IOPermissionCollection or <tt>null</tt> if not found */ |
| static IOPermissionCollection getIOPermissionCollection(AccessControlContext acc) { |
| try { |
| ProtectionDomain[] pds = getDomains(acc); |
| PermissionCollection pc; |
| for (int i = 0; i < pds.length; i++) { |
| pc = pds[i].getPermissions(); |
| if (pc instanceof IOPermissionCollection) { |
| return (IOPermissionCollection) pc; |
| } |
| } |
| return null; |
| } catch (final Exception e) { |
| javax.swing.SwingUtilities.invokeLater(new Runnable() { |
| public void run() { |
| Logger.getLogger(AccController.class.getName()).log(Level.WARNING, null, e); |
| } |
| }); |
| return null; |
| } |
| } |
| } |