001/* AWTPermission.java -- AWT related permissions
002   Copyright (C) 2000, 2002  Free Software Foundation
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package java.awt;
040
041import java.security.BasicPermission;
042
043/**
044 * This class implements permissions for AWT.  This is a named
045 * permission.  No actions are defined.
046 *
047 * <p>The following table provides a list of all the possible AWTPermission
048 * permission names with a description of what that permission allows.<br>
049 * <table border=1>
050 * <tr><th>Permission Name</th><th>Permission Allows</th><th>Risks</th</tr>
051 * <tr>
052 *   <td><code>accessClipboard</code></td>
053 *   <td>posting and reading the AWT clipboard</td>
054 *   <td>the clipboard may contain sensitive data</td></tr>
055 * <tr>
056 *   <td><code>accessEventQueue</code></td>
057 *   <td>access to the AWT event queue</td>
058 *   <td>malicious code could remove real events and replace them with bogus
059 *       ones, including simulating the user granting permission</td></tr>
060 * <tr>
061 *   <td><code>listenToAllAWTEvents</code></td>
062 *   <td>listen to system-wide AWT events</td>
063 *   <td>malicious code can read passwords entered in an AWT event, and in
064 *       combination with accessEventQueue, could fake system events</td></tr>
065 * <tr>
066 *   <td><code>showWindowWithoutWarningBanner</code></td>
067 *   <td>display a window without a banner notification of insecurity</td>
068 *   <td>malicious code could install a Trojan horse applet that looks like
069 *       a normal window, and thus steal data like passwords</td></tr>
070 * <tr>
071 *   <td><code>readDisplayPixels</code></td>
072 *   <td>read back pixels from the display screen</td>
073 *   <td>malicious code could snoop on the user's actions</td></tr>
074 * <tr>
075 *   <td><code>createRobot</code></td>
076 *   <td>create an instance of java.awt.Robot</td>
077 *   <td>these objects can generate events as though they were the user; so
078 *       malicious code could control the system</td></tr>
079 * <tr>
080 *   <td><code>fullScreenExclusive</code></td>
081 *   <td>enter full-screen exclusive mode</td>
082 *   <td>malicious code could masquerade as a trusted program</td></tr>
083 * </table>
084 *
085 * @author Tom Tromey (tromey@redhat.com)
086 * @since 1.2
087 * @status updated to 1.4
088 */
089public final class AWTPermission extends BasicPermission
090{
091  /**
092   * Compatible with JDK 1.2+.
093   */
094  private static final long serialVersionUID = 8890392402588814465L;
095
096  /**
097   * Construct a AWTPermission with the given name.
098   *
099   * @param name the permission name
100   * @throws NullPointerException if name is null
101   * @throws IllegalArgumentException if name is invalid
102   */
103  public AWTPermission(String name)
104  {
105    super(name);
106  }
107
108  /**
109   * Create a new permission with the specified name. The actions argument
110   * is ignored, as AWT permissions have no actions.
111   *
112   * @param name the permission name
113   * @param actions ignored
114   * @throws NullPointerException if name is null
115   * @throws IllegalArgumentException if name is invalid
116   */
117  public AWTPermission(String name, String actions)
118  {
119    super(name);
120  }
121} // class AWTPermission