/* * @(#)NetPermission.java 1.46 06/10/10 * * Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER * * This program 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. * * This program 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 at /legal/license.txt). * * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa * Clara, CA 95054 or visit www.sun.com if you need additional * information or have any questions. * */ package java.net; import java.security.*; import java.util.Enumeration; import java.util.Hashtable; import java.util.StringTokenizer; /** * This class is for various network permissions. * A NetPermission contains a name (also referred to as a "target name") but * no actions list; you either have the named permission * or you don't. * <P> * The target name is the name of the network permission (see below). The naming * convention follows the hierarchical property naming convention. * Also, an asterisk * may appear at the end of the name, following a ".", or by itself, to * signify a wildcard match. For example: "foo.*" or "*" is valid, * "*foo" or "a*b" is not valid. * <P> * The following table lists all the possible NetPermission target names, * and for each provides a description of what the permission allows * and a discussion of the risks of granting code the permission. * <P> * * <table border=1 cellpadding=5 summary="Permission target name, what the permission allows, and associated risks"> * <tr> * <th>Permission Target Name</th> * <th>What the Permission Allows</th> * <th>Risks of Allowing this Permission</th> * </tr> * * <tr> * <td>setDefaultAuthenticator</td> * <td>The ability to set the * way authentication information is retrieved when * a proxy or HTTP server asks for authentication</td> * <td>Malicious * code can set an authenticator that monitors and steals user * authentication input as it retrieves the input from the user.</td> * </tr> * * <tr> * <td>requestPasswordAuthentication</td> * <td>The ability * to ask the authenticator registered with the system for * a password</td> * <td>Malicious code may steal this password.</td> * </tr> * * <tr> * <td>specifyStreamHandler</td> * <td>The ability * to specify a stream handler when constructing a URL</td> * <td>Malicious code may create a URL with resources that it would normally not have access to (like file:/foo/fum/), specifying a stream handler that gets the actual bytes from someplace it does have access to. Thus it might be able to trick the system into creating a ProtectionDomain/CodeSource for a class even though that class really didn't come from that location.</td> * </tr> * * </table> * * @see java.security.BasicPermission * @see java.security.Permission * @see java.security.Permissions * @see java.security.PermissionCollection * @see java.lang.SecurityManager * * @version 1.39 00/02/02 * * @author Marianne Mueller * @author Roland Schemers */ public final class NetPermission extends BasicPermission { private static final long serialVersionUID = -8343910153355041693L; /** * Creates a new NetPermission with the specified name. * The name is the symbolic name of the NetPermission, such as * "setDefaultAuthenticator", etc. An asterisk * may appear at the end of the name, following a ".", or by itself, to * signify a wildcard match. * * @param name the name of the NetPermission. */ public NetPermission(String name) { super(name); } /** * Creates a new NetPermission object with the specified name. * The name is the symbolic name of the NetPermission, and the * actions String is currently unused and should be null. * * @param name the name of the NetPermission. * @param actions should be null. */ public NetPermission(String name, String actions) { super(name, actions); } }