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SerializablePermission.java
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131 lines (121 loc) · 3.6 KB
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/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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package java.io;
import java.security.*;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.StringTokenizer;
/**
* This class is for Serializable permissions. A SerializablePermission
* 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 Serializable permission (see below).
*
* <P>
* The following table lists all the possible SerializablePermission target names,
* and for each provides a description of what the permission allows
* and a discussion of the risks of granting code the permission.
*
* <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>enableSubclassImplementation</td>
* <td>Subclass implementation of ObjectOutputStream or ObjectInputStream
* to override the default serialization or deserialization, respectively,
* of objects</td>
* <td>Code can use this to serialize or
* deserialize classes in a purposefully malfeasant manner. For example,
* during serialization, malicious code can use this to
* purposefully store confidential private field data in a way easily accessible
* to attackers. Or, during deserialization it could, for example, deserialize
* a class with all its private fields zeroed out.</td>
* </tr>
*
* <tr>
* <td>enableSubstitution</td>
* <td>Substitution of one object for another during
* serialization or deserialization</td>
* <td>This is dangerous because malicious code
* can replace the actual object with one which has incorrect or
* malignant data.</td>
* </tr>
*
* </table>
*
* @see java.security.BasicPermission
* @see java.security.Permission
* @see java.security.Permissions
* @see java.security.PermissionCollection
* @see java.lang.SecurityManager
*
*
* @author Joe Fialli
* @since 1.2
*/
/* code was borrowed originally from java.lang.RuntimePermission. */
public final class SerializablePermission extends BasicPermission {
private static final long serialVersionUID = 8537212141160296410L;
/**
* @serial
*/
private String actions;
/**
* Creates a new SerializablePermission with the specified name.
* The name is the symbolic name of the SerializablePermission, such as
* "enableSubstitution", etc.
*
* @param name the name of the SerializablePermission.
*
* @throws NullPointerException if <code>name</code> is <code>null</code>.
* @throws IllegalArgumentException if <code>name</code> is empty.
*/
public SerializablePermission(String name)
{
super(name);
}
/**
* Creates a new SerializablePermission object with the specified name.
* The name is the symbolic name of the SerializablePermission, and the
* actions String is currently unused and should be null.
*
* @param name the name of the SerializablePermission.
* @param actions currently unused and must be set to null
*
* @throws NullPointerException if <code>name</code> is <code>null</code>.
* @throws IllegalArgumentException if <code>name</code> is empty.
*/
public SerializablePermission(String name, String actions)
{
super(name, actions);
}
}