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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun * Microsystems, Inc. All Rights Reserved. */ 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 org.openide.ErrorManager; /** Tries to get an IOProtectionDomain from an AccessControlContext. * * @author Ales Novak */ class AccController { /** array of ProtectionDomains */ static Field context; static Field getContextField() throws Exception { if (context == null) { Field ctx = AccessControlContext.class.getDeclaredField("context"); // 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 null if not found */ static IOPermissionCollection getIOPermissionCollection() { return getIOPermissionCollection(AccessController.getContext()); } /** @return an IOPermissionCollection or null 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 () { ErrorManager.getDefault().notify(ErrorManager.INFORMATIONAL, e); } }); return null; } } } |
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