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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package java.net; | ||
| 27 | |||
| 28 | import java.security.*; | ||
| 29 | import java.util.Enumeration; | ||
| 30 | import java.util.Hashtable; | ||
| 31 | import java.util.StringTokenizer; | ||
| 32 | |||
| 33 | /** | ||
| 34 | * This class is for various network permissions. | ||
| 35 | * A NetPermission contains a name (also referred to as a "target name") but | ||
| 36 | * no actions list; you either have the named permission | ||
| 37 | * or you don't. | ||
| 38 | * <P> | ||
| 39 | * The target name is the name of the network permission (see below). The naming | ||
| 40 | * convention follows the hierarchical property naming convention. | ||
| 41 | * Also, an asterisk | ||
| 42 | * may appear at the end of the name, following a ".", or by itself, to | ||
| 43 | * signify a wildcard match. For example: "foo.*" or "*" is valid, | ||
| 44 | * "*foo" or "a*b" is not valid. | ||
| 45 | * <P> | ||
| 46 | * The following table lists all the possible NetPermission target names, | ||
| 47 | * and for each provides a description of what the permission allows | ||
| 48 | * and a discussion of the risks of granting code the permission. | ||
| 49 | * <P> | ||
| 50 | * | ||
| 51 | * <table border=1 cellpadding=5 summary="Permission target name, what the permission allows, and associated risks"> | ||
| 52 | * <tr> | ||
| 53 | * <th>Permission Target Name</th> | ||
| 54 | * <th>What the Permission Allows</th> | ||
| 55 | * <th>Risks of Allowing this Permission</th> | ||
| 56 | * </tr> | ||
| 57 | * <tr> | ||
| 58 | * <td>allowHttpTrace</td> | ||
| 59 | * <td>The ability to use the HTTP TRACE method in HttpURLConnection.</td> | ||
| 60 | * <td>Malicious code using HTTP TRACE could get access to security sensitive | ||
| 61 | * information in the HTTP headers (such as cookies) that it might not | ||
| 62 | * otherwise have access to.</td> | ||
| 63 | * </tr> | ||
| 64 | * | ||
| 65 | * <tr> | ||
| 66 | * <td>getCookieHandler</td> | ||
| 67 | * <td>The ability to get the cookie handler that processes highly | ||
| 68 | * security sensitive cookie information for an Http session.</td> | ||
| 69 | * <td>Malicious code can get a cookie handler to obtain access to | ||
| 70 | * highly security sensitive cookie information. Some web servers | ||
| 71 | * use cookies to save user private information such as access | ||
| 72 | * control information, or to track user browsing habit.</td> | ||
| 73 | * </tr> | ||
| 74 | * | ||
| 75 | * <tr> | ||
| 76 | * <td>getNetworkInformation</td> | ||
| 77 | * <td>The ability to retrieve all information about local network interfaces.</td> | ||
| 78 | * <td>Malicious code can read information about network hardware such as | ||
| 79 | * MAC addresses, which could be used to construct local IPv6 addresses.</td> | ||
| 80 | * </tr> | ||
| 81 | * | ||
| 82 | * <tr> | ||
| 83 | * <td>getProxySelector</td> | ||
| 84 | * <td>The ability to get the proxy selector used to make decisions | ||
| 85 | * on which proxies to use when making network connections.</td> | ||
| 86 | * <td>Malicious code can get a ProxySelector to discover proxy | ||
| 87 | * hosts and ports on internal networks, which could then become | ||
| 88 | * targets for attack.</td> | ||
| 89 | * </tr> | ||
| 90 | * | ||
| 91 | * <tr> | ||
| 92 | * <td>getResponseCache</td> | ||
| 93 | * <td>The ability to get the response cache that provides | ||
| 94 | * access to a local response cache.</td> | ||
| 95 | * <td>Malicious code getting access to the local response cache | ||
| 96 | * could access security sensitive information.</td> | ||
| 97 | * </tr> | ||
| 98 | * | ||
| 99 | * <tr> | ||
| 100 | * <td>requestPasswordAuthentication</td> | ||
| 101 | * <td>The ability | ||
| 102 | * to ask the authenticator registered with the system for | ||
| 103 | * a password</td> | ||
| 104 | * <td>Malicious code may steal this password.</td> | ||
| 105 | * </tr> | ||
| 106 | * | ||
| 107 | * <tr> | ||
| 108 | * <td>setCookieHandler</td> | ||
| 109 | * <td>The ability to set the cookie handler that processes highly | ||
| 110 | * security sensitive cookie information for an Http session.</td> | ||
| 111 | * <td>Malicious code can set a cookie handler to obtain access to | ||
| 112 | * highly security sensitive cookie information. Some web servers | ||
| 113 | * use cookies to save user private information such as access | ||
| 114 | * control information, or to track user browsing habit.</td> | ||
| 115 | * </tr> | ||
| 116 | * | ||
| 117 | * <tr> | ||
| 118 | * <td>setDefaultAuthenticator</td> | ||
| 119 | * <td>The ability to set the | ||
| 120 | * way authentication information is retrieved when | ||
| 121 | * a proxy or HTTP server asks for authentication</td> | ||
| 122 | * <td>Malicious | ||
| 123 | * code can set an authenticator that monitors and steals user | ||
| 124 | * authentication input as it retrieves the input from the user.</td> | ||
| 125 | * </tr> | ||
| 126 | * | ||
| 127 | * <tr> | ||
| 128 | * <td>setProxySelector</td> | ||
| 129 | * <td>The ability to set the proxy selector used to make decisions | ||
| 130 | * on which proxies to use when making network connections.</td> | ||
| 131 | * <td>Malicious code can set a ProxySelector that directs network | ||
| 132 | * traffic to an arbitrary network host.</td> | ||
| 133 | * </tr> | ||
| 134 | * | ||
| 135 | * <tr> | ||
| 136 | * <td>setResponseCache</td> | ||
| 137 | * <td>The ability to set the response cache that provides access to | ||
| 138 | * a local response cache.</td> | ||
| 139 | * <td>Malicious code getting access to the local response cache | ||
| 140 | * could access security sensitive information, or create false | ||
| 141 | * entries in the response cache.</td> | ||
| 142 | * </tr> | ||
| 143 | * | ||
| 144 | * <tr> | ||
| 145 | * <td>specifyStreamHandler</td> | ||
| 146 | * <td>The ability | ||
| 147 | * to specify a stream handler when constructing a URL</td> | ||
| 148 | * <td>Malicious code may create a URL with resources that it would | ||
| 149 | normally not have access to (like file:/foo/fum/), specifying a | ||
| 150 | stream handler that gets the actual bytes from someplace it does | ||
| 151 | have access to. Thus it might be able to trick the system into | ||
| 152 | creating a ProtectionDomain/CodeSource for a class even though | ||
| 153 | that class really didn't come from that location.</td> | ||
| 154 | * </tr> | ||
| 155 | * </table> | ||
| 156 | * | ||
| 157 | * @see java.security.BasicPermission | ||
| 158 | * @see java.security.Permission | ||
| 159 | * @see java.security.Permissions | ||
| 160 | * @see java.security.PermissionCollection | ||
| 161 | * @see java.lang.SecurityManager | ||
| 162 | * | ||
| 163 | * | ||
| 164 | * @author Marianne Mueller | ||
| 165 | * @author Roland Schemers | ||
| 166 | */ | ||
| 167 | |||
| 168 | public final class NetPermission extends BasicPermission { | ||
| 169 | private static final long serialVersionUID = -8343910153355041693L; | ||
| 170 | |||
| 171 | /** | ||
| 172 | * Creates a new NetPermission with the specified name. | ||
| 173 | * The name is the symbolic name of the NetPermission, such as | ||
| 174 | * "setDefaultAuthenticator", etc. An asterisk | ||
| 175 | * may appear at the end of the name, following a ".", or by itself, to | ||
| 176 | * signify a wildcard match. | ||
| 177 | * | ||
| 178 | * @param name the name of the NetPermission. | ||
| 179 | * | ||
| 180 | * @throws NullPointerException if <code>name</code> is <code>null</code>. | ||
| 181 | * @throws IllegalArgumentException if <code>name</code> is empty. | ||
| 182 | */ | ||
| 183 | |||
| 184 | public NetPermission(String name) | ||
| 185 | { | ||
| 186 | super(name); | ||
| 187 | } | ||
| 188 | |||
| 189 | /** | ||
| 190 | * Creates a new NetPermission object with the specified name. | ||
| 191 | * The name is the symbolic name of the NetPermission, and the | ||
| 192 | * actions String is currently unused and should be null. | ||
| 193 | * | ||
| 194 | * @param name the name of the NetPermission. | ||
| 195 | * @param actions should be null. | ||
| 196 | * | ||
| 197 | * @throws NullPointerException if <code>name</code> is <code>null</code>. | ||
| 198 | * @throws IllegalArgumentException if <code>name</code> is empty. | ||
| 199 | */ | ||
| 200 | |||
| 201 | public NetPermission(String name, String actions) | ||
| 202 | { | ||
| 203 | super(name, actions); | ||
| 204 | } | ||
| 205 | } | ||