| /* AppletSecurityManager.java -- an applet security manager |
| Copyright (C) 2004, 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.classpath.tools.appletviewer; |
| |
| import java.io.FilePermission; |
| import java.net.SocketPermission; |
| import java.security.Permission; |
| import java.security.SecurityPermission; |
| import java.util.PropertyPermission; |
| |
| class AppletSecurityManager extends SecurityManager |
| { |
| private boolean plugin; |
| |
| AppletSecurityManager(boolean plugin) |
| { |
| this.plugin = plugin; |
| } |
| |
| public void checkPermission(Permission permission) |
| { |
| if (permission == null) |
| throw new NullPointerException(); |
| |
| // FIXME: we need to restrict this. |
| // |
| // libgcj asks for "java.io.FilePermission <<ALL FILES>> execute" |
| // to be able to execute "addr2line" to get proper stack traces. |
| if (permission instanceof FilePermission) |
| return; |
| |
| // FIXME: we need to restrict this. |
| if (permission instanceof SecurityPermission) |
| return; |
| |
| // FIXME: is this really needed ? |
| if (permission instanceof PropertyPermission) |
| return; |
| |
| // Needed to allow to access AWT event queue. |
| if (permission.getName().equals("accessEventQueue")) |
| return; |
| |
| // Needed to create a class loader for each codebase. |
| if (permission.getName().equals("createClassLoader")) |
| return; |
| |
| // FIXME: we need to allow access to codebase here. |
| |
| if (permission instanceof SocketPermission // for net access |
| || permission instanceof RuntimePermission) // for checkWrite(FileDescriptor) |
| return; |
| |
| if (! plugin && permission.getName().equals("exitVM")) |
| return; |
| |
| // Reject all other permissions. |
| throw new SecurityException(); |
| } |
| } |