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1160 lines
41 KiB
1160 lines
41 KiB
/*
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* Copyright (c) 2002, 2008, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.management;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.security.Permission;
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/**
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* <p>Permission controlling access to MBeanServer operations. If a
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* security manager has been set using {@link
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* System#setSecurityManager}, most operations on the MBean Server
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* require that the caller's permissions imply an MBeanPermission
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* appropriate for the operation. This is described in detail in the
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* documentation for the {@link MBeanServer} interface.</p>
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*
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* <p>As with other {@link Permission} objects, an MBeanPermission can
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* represent either a permission that you <em>have</em> or a
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* permission that you <em>need</em>. When a sensitive operation is
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* being checked for permission, an MBeanPermission is constructed
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* representing the permission you need. The operation is only
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* allowed if the permissions you have {@linkplain #implies imply} the
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* permission you need.</p>
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*
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* <p>An MBeanPermission contains four items of information:</p>
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*
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* <ul>
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*
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* <li><p>The <em>action</em>. For a permission you need,
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* this is one of the actions in the list <a
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* href="#action-list">below</a>. For a permission you have, this is
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* a comma-separated list of those actions, or <code>*</code>,
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* representing all actions.</p>
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*
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* <p>The action is returned by {@link #getActions()}.</p>
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*
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* <li><p>The <em>class name</em>.</p>
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*
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* <p>For a permission you need, this is the class name of an MBean
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* you are accessing, as returned by {@link
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* MBeanServer#getMBeanInfo(ObjectName)
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* MBeanServer.getMBeanInfo(name)}.{@link MBeanInfo#getClassName()
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* getClassName()}. Certain operations do not reference a class name,
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* in which case the class name is null.</p>
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*
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* <p>For a permission you have, this is either empty or a <em>class
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* name pattern</em>. A class name pattern is a string following the
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* Java conventions for dot-separated class names. It may end with
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* "<code>.*</code>" meaning that the permission grants access to any
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* class that begins with the string preceding "<code>.*</code>". For
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* instance, "<code>javax.management.*</code>" grants access to
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* <code>javax.management.MBeanServerDelegate</code> and
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* <code>javax.management.timer.Timer</code>, among other classes.</p>
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*
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* <p>A class name pattern can also be empty or the single character
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* "<code>*</code>", both of which grant access to any class.</p>
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*
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* <li><p>The <em>member</em>.</p>
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*
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* <p>For a permission you need, this is the name of the attribute or
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* operation you are accessing. For operations that do not reference
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* an attribute or operation, the member is null.</p>
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*
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* <p>For a permission you have, this is either the name of an attribute
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* or operation you can access, or it is empty or the single character
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* "<code>*</code>", both of which grant access to any member.</p>
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*
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* <li id="MBeanName"><p>The <em>object name</em>.</p>
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*
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* <p>For a permission you need, this is the {@link ObjectName} of the
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* MBean you are accessing. For operations that do not reference a
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* single MBean, it is null. It is never an object name pattern.</p>
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*
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* <p>For a permission you have, this is the {@link ObjectName} of the
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* MBean or MBeans you can access. It may be an object name pattern
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* to grant access to all MBeans whose names match the pattern. It
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* may also be empty, which grants access to all MBeans whatever their
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* name.</p>
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*
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* </ul>
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*
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* <p>If you have an MBeanPermission, it allows operations only if all
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* four of the items match.</p>
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*
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* <p>The class name, member, and object name can be written together
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* as a single string, which is the <em>name</em> of this permission.
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* The name of the permission is the string returned by {@link
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* Permission#getName() getName()}. The format of the string is:</p>
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*
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* <blockquote>
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* <code>className#member[objectName]</code>
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* </blockquote>
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*
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* <p>The object name is written using the usual syntax for {@link
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* ObjectName}. It may contain any legal characters, including
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* <code>]</code>. It is terminated by a <code>]</code> character
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* that is the last character in the string.</p>
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*
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* <p>One or more of the <code>className</code>, <code>member</code>,
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* or <code>objectName</code> may be omitted. If the
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* <code>member</code> is omitted, the <code>#</code> may be too (but
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* does not have to be). If the <code>objectName</code> is omitted,
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* the <code>[]</code> may be too (but does not have to be). It is
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* not legal to omit all three items, that is to have a <em>name</em>
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* that is the empty string.</p>
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*
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* <p>One or more of the <code>className</code>, <code>member</code>,
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* or <code>objectName</code> may be the character "<code>-</code>",
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* which is equivalent to a null value. A null value is implied by
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* any value (including another null value) but does not imply any
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* other value.</p>
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*
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* <p><a name="action-list">The possible actions are these:</a></p>
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*
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* <ul>
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* <li>addNotificationListener</li>
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* <li>getAttribute</li>
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* <li>getClassLoader</li>
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* <li>getClassLoaderFor</li>
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* <li>getClassLoaderRepository</li>
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* <li>getDomains</li>
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* <li>getMBeanInfo</li>
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* <li>getObjectInstance</li>
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* <li>instantiate</li>
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* <li>invoke</li>
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* <li>isInstanceOf</li>
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* <li>queryMBeans</li>
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* <li>queryNames</li>
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* <li>registerMBean</li>
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* <li>removeNotificationListener</li>
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* <li>setAttribute</li>
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* <li>unregisterMBean</li>
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* </ul>
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*
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* <p>In a comma-separated list of actions, spaces are allowed before
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* and after each action.</p>
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*
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* @since 1.5
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*/
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public class MBeanPermission extends Permission {
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private static final long serialVersionUID = -2416928705275160661L;
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/**
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* Actions list.
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*/
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private static final int AddNotificationListener = 0x00001;
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private static final int GetAttribute = 0x00002;
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private static final int GetClassLoader = 0x00004;
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private static final int GetClassLoaderFor = 0x00008;
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private static final int GetClassLoaderRepository = 0x00010;
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private static final int GetDomains = 0x00020;
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private static final int GetMBeanInfo = 0x00040;
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private static final int GetObjectInstance = 0x00080;
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private static final int Instantiate = 0x00100;
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private static final int Invoke = 0x00200;
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private static final int IsInstanceOf = 0x00400;
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private static final int QueryMBeans = 0x00800;
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private static final int QueryNames = 0x01000;
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private static final int RegisterMBean = 0x02000;
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private static final int RemoveNotificationListener = 0x04000;
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private static final int SetAttribute = 0x08000;
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private static final int UnregisterMBean = 0x10000;
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/**
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* No actions.
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*/
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private static final int NONE = 0x00000;
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/**
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* All actions.
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*/
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private static final int ALL =
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AddNotificationListener |
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GetAttribute |
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GetClassLoader |
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GetClassLoaderFor |
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GetClassLoaderRepository |
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GetDomains |
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GetMBeanInfo |
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GetObjectInstance |
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Instantiate |
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Invoke |
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IsInstanceOf |
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QueryMBeans |
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QueryNames |
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RegisterMBean |
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RemoveNotificationListener |
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SetAttribute |
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UnregisterMBean;
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/**
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* The actions string.
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*/
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private String actions;
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/**
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* The actions mask.
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*/
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private transient int mask;
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/**
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* The classname prefix that must match. If null, is implied by any
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* classNamePrefix but does not imply any non-null classNamePrefix.
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*/
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private transient String classNamePrefix;
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/**
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* True if classNamePrefix must match exactly. Otherwise, the
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* className being matched must start with classNamePrefix.
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*/
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private transient boolean classNameExactMatch;
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/**
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* The member that must match. If null, is implied by any member
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* but does not imply any non-null member.
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*/
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private transient String member;
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/**
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* The objectName that must match. If null, is implied by any
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* objectName but does not imply any non-null objectName.
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*/
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private transient ObjectName objectName;
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/**
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* Parse <code>actions</code> parameter.
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*/
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private void parseActions() {
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int mask;
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if (actions == null)
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throw new IllegalArgumentException("MBeanPermission: " +
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"actions can't be null");
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if (actions.equals(""))
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throw new IllegalArgumentException("MBeanPermission: " +
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"actions can't be empty");
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mask = getMask(actions);
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if ((mask & ALL) != mask)
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throw new IllegalArgumentException("Invalid actions mask");
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if (mask == NONE)
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throw new IllegalArgumentException("Invalid actions mask");
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this.mask = mask;
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}
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/**
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* Parse <code>name</code> parameter.
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*/
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private void parseName() {
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String name = getName();
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if (name == null)
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throw new IllegalArgumentException("MBeanPermission name " +
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"cannot be null");
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if (name.equals(""))
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throw new IllegalArgumentException("MBeanPermission name " +
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"cannot be empty");
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/* The name looks like "class#member[objectname]". We subtract
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elements from the right as we parse, so after parsing the
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objectname we have "class#member" and after parsing the
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member we have "class". Each element is optional. */
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// Parse ObjectName
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int openingBracket = name.indexOf("[");
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if (openingBracket == -1) {
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// If "[on]" missing then ObjectName("*:*")
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//
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objectName = ObjectName.WILDCARD;
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} else {
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if (!name.endsWith("]")) {
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throw new IllegalArgumentException("MBeanPermission: " +
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"The ObjectName in the " +
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"target name must be " +
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"included in square " +
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"brackets");
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} else {
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// Create ObjectName
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//
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try {
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// If "[]" then ObjectName("*:*")
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//
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String on = name.substring(openingBracket + 1,
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name.length() - 1);
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if (on.equals(""))
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objectName = ObjectName.WILDCARD;
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else if (on.equals("-"))
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objectName = null;
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else
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objectName = new ObjectName(on);
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} catch (MalformedObjectNameException e) {
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throw new IllegalArgumentException("MBeanPermission: " +
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"The target name does " +
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"not specify a valid " +
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"ObjectName", e);
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}
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}
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name = name.substring(0, openingBracket);
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}
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// Parse member
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int poundSign = name.indexOf("#");
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if (poundSign == -1)
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setMember("*");
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else {
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String memberName = name.substring(poundSign + 1);
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setMember(memberName);
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name = name.substring(0, poundSign);
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}
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// Parse className
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setClassName(name);
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}
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/**
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* Assign fields based on className, member, and objectName
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* parameters.
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*/
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private void initName(String className, String member,
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ObjectName objectName) {
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setClassName(className);
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setMember(member);
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this.objectName = objectName;
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}
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private void setClassName(String className) {
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if (className == null || className.equals("-")) {
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classNamePrefix = null;
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classNameExactMatch = false;
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} else if (className.equals("") || className.equals("*")) {
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classNamePrefix = "";
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classNameExactMatch = false;
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} else if (className.endsWith(".*")) {
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// Note that we include the "." in the required prefix
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classNamePrefix = className.substring(0, className.length() - 1);
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classNameExactMatch = false;
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} else {
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classNamePrefix = className;
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classNameExactMatch = true;
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}
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}
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private void setMember(String member) {
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if (member == null || member.equals("-"))
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this.member = null;
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else if (member.equals(""))
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this.member = "*";
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else
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this.member = member;
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}
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/**
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* <p>Create a new MBeanPermission object with the specified target name
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* and actions.</p>
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*
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* <p>The target name is of the form
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* "<code>className#member[objectName]</code>" where each part is
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* optional. It must not be empty or null.</p>
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*
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* <p>The actions parameter contains a comma-separated list of the
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* desired actions granted on the target name. It must not be
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* empty or null.</p>
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*
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* @param name the triplet "className#member[objectName]".
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* @param actions the action string.
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*
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* @exception IllegalArgumentException if the <code>name</code> or
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* <code>actions</code> is invalid.
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*/
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public MBeanPermission(String name, String actions) {
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super(name);
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parseName();
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this.actions = actions;
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parseActions();
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}
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/**
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* <p>Create a new MBeanPermission object with the specified target name
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* (class name, member, object name) and actions.</p>
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*
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* <p>The class name, member and object name parameters define a
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* target name of the form
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* "<code>className#member[objectName]</code>" where each part is
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* optional. This will be the result of {@link #getName()} on the
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* resultant MBeanPermission.</p>
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*
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* <p>The actions parameter contains a comma-separated list of the
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* desired actions granted on the target name. It must not be
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* empty or null.</p>
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*
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* @param className the class name to which this permission applies.
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* May be null or <code>"-"</code>, which represents a class name
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* that is implied by any class name but does not imply any other
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* class name.
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* @param member the member to which this permission applies. May
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* be null or <code>"-"</code>, which represents a member that is
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* implied by any member but does not imply any other member.
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* @param objectName the object name to which this permission
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* applies. May be null, which represents an object name that is
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* implied by any object name but does not imply any other object
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* name.
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* @param actions the action string.
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*/
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public MBeanPermission(String className,
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String member,
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ObjectName objectName,
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String actions) {
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super(makeName(className, member, objectName));
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initName(className, member, objectName);
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this.actions = actions;
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parseActions();
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}
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private static String makeName(String className, String member,
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ObjectName objectName) {
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final StringBuilder name = new StringBuilder();
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if (className == null)
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className = "-";
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name.append(className);
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if (member == null)
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member = "-";
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name.append("#" + member);
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if (objectName == null)
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name.append("[-]");
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else
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name.append("[").append(objectName.getCanonicalName()).append("]");
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/* In the interests of legibility for Permission.toString(), we
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transform the empty string into "*". */
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if (name.length() == 0)
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return "*";
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else
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return name.toString();
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}
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/**
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* Returns the "canonical string representation" of the actions. That is,
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* this method always returns present actions in alphabetical order.
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*
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* @return the canonical string representation of the actions.
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*/
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public String getActions() {
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if (actions == null)
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actions = getActions(this.mask);
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return actions;
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}
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/**
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* Returns the "canonical string representation"
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* of the actions from the mask.
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*/
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private static String getActions(int mask) {
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final StringBuilder sb = new StringBuilder();
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boolean comma = false;
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if ((mask & AddNotificationListener) == AddNotificationListener) {
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comma = true;
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sb.append("addNotificationListener");
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}
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if ((mask & GetAttribute) == GetAttribute) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getAttribute");
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}
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if ((mask & GetClassLoader) == GetClassLoader) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getClassLoader");
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}
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if ((mask & GetClassLoaderFor) == GetClassLoaderFor) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getClassLoaderFor");
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}
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if ((mask & GetClassLoaderRepository) == GetClassLoaderRepository) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getClassLoaderRepository");
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}
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if ((mask & GetDomains) == GetDomains) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getDomains");
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}
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if ((mask & GetMBeanInfo) == GetMBeanInfo) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getMBeanInfo");
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}
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if ((mask & GetObjectInstance) == GetObjectInstance) {
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if (comma) sb.append(',');
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else comma = true;
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sb.append("getObjectInstance");
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}
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|
|
|
if ((mask & Instantiate) == Instantiate) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("instantiate");
|
|
}
|
|
|
|
if ((mask & Invoke) == Invoke) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("invoke");
|
|
}
|
|
|
|
if ((mask & IsInstanceOf) == IsInstanceOf) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("isInstanceOf");
|
|
}
|
|
|
|
if ((mask & QueryMBeans) == QueryMBeans) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("queryMBeans");
|
|
}
|
|
|
|
if ((mask & QueryNames) == QueryNames) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("queryNames");
|
|
}
|
|
|
|
if ((mask & RegisterMBean) == RegisterMBean) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("registerMBean");
|
|
}
|
|
|
|
if ((mask & RemoveNotificationListener) == RemoveNotificationListener) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("removeNotificationListener");
|
|
}
|
|
|
|
if ((mask & SetAttribute) == SetAttribute) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("setAttribute");
|
|
}
|
|
|
|
if ((mask & UnregisterMBean) == UnregisterMBean) {
|
|
if (comma) sb.append(',');
|
|
else comma = true;
|
|
sb.append("unregisterMBean");
|
|
}
|
|
|
|
return sb.toString();
|
|
}
|
|
|
|
/**
|
|
* Returns the hash code value for this object.
|
|
*
|
|
* @return a hash code value for this object.
|
|
*/
|
|
public int hashCode() {
|
|
return this.getName().hashCode() + this.getActions().hashCode();
|
|
}
|
|
|
|
/**
|
|
* Converts an action String to an integer action mask.
|
|
*
|
|
* @param action the action string.
|
|
* @return the action mask.
|
|
*/
|
|
private static int getMask(String action) {
|
|
|
|
/*
|
|
* BE CAREFUL HERE! PARSING ORDER IS IMPORTANT IN THIS ALGORITHM.
|
|
*
|
|
* The 'string length' test must be performed for the lengthiest
|
|
* strings first.
|
|
*
|
|
* In this permission if the "unregisterMBean" string length test is
|
|
* performed after the "registerMBean" string length test the algorithm
|
|
* considers the 'unregisterMBean' action as being the 'registerMBean'
|
|
* action and a parsing error is returned.
|
|
*/
|
|
|
|
int mask = NONE;
|
|
|
|
if (action == null) {
|
|
return mask;
|
|
}
|
|
|
|
if (action.equals("*")) {
|
|
return ALL;
|
|
}
|
|
|
|
char[] a = action.toCharArray();
|
|
|
|
int i = a.length - 1;
|
|
if (i < 0)
|
|
return mask;
|
|
|
|
while (i != -1) {
|
|
char c;
|
|
|
|
// skip whitespace
|
|
while ((i!=-1) && ((c = a[i]) == ' ' ||
|
|
c == '\r' ||
|
|
c == '\n' ||
|
|
c == '\f' ||
|
|
c == '\t'))
|
|
i--;
|
|
|
|
// check for the known strings
|
|
int matchlen;
|
|
|
|
if (i >= 25 && /* removeNotificationListener */
|
|
(a[i-25] == 'r') &&
|
|
(a[i-24] == 'e') &&
|
|
(a[i-23] == 'm') &&
|
|
(a[i-22] == 'o') &&
|
|
(a[i-21] == 'v') &&
|
|
(a[i-20] == 'e') &&
|
|
(a[i-19] == 'N') &&
|
|
(a[i-18] == 'o') &&
|
|
(a[i-17] == 't') &&
|
|
(a[i-16] == 'i') &&
|
|
(a[i-15] == 'f') &&
|
|
(a[i-14] == 'i') &&
|
|
(a[i-13] == 'c') &&
|
|
(a[i-12] == 'a') &&
|
|
(a[i-11] == 't') &&
|
|
(a[i-10] == 'i') &&
|
|
(a[i-9] == 'o') &&
|
|
(a[i-8] == 'n') &&
|
|
(a[i-7] == 'L') &&
|
|
(a[i-6] == 'i') &&
|
|
(a[i-5] == 's') &&
|
|
(a[i-4] == 't') &&
|
|
(a[i-3] == 'e') &&
|
|
(a[i-2] == 'n') &&
|
|
(a[i-1] == 'e') &&
|
|
(a[i] == 'r')) {
|
|
matchlen = 26;
|
|
mask |= RemoveNotificationListener;
|
|
} else if (i >= 23 && /* getClassLoaderRepository */
|
|
(a[i-23] == 'g') &&
|
|
(a[i-22] == 'e') &&
|
|
(a[i-21] == 't') &&
|
|
(a[i-20] == 'C') &&
|
|
(a[i-19] == 'l') &&
|
|
(a[i-18] == 'a') &&
|
|
(a[i-17] == 's') &&
|
|
(a[i-16] == 's') &&
|
|
(a[i-15] == 'L') &&
|
|
(a[i-14] == 'o') &&
|
|
(a[i-13] == 'a') &&
|
|
(a[i-12] == 'd') &&
|
|
(a[i-11] == 'e') &&
|
|
(a[i-10] == 'r') &&
|
|
(a[i-9] == 'R') &&
|
|
(a[i-8] == 'e') &&
|
|
(a[i-7] == 'p') &&
|
|
(a[i-6] == 'o') &&
|
|
(a[i-5] == 's') &&
|
|
(a[i-4] == 'i') &&
|
|
(a[i-3] == 't') &&
|
|
(a[i-2] == 'o') &&
|
|
(a[i-1] == 'r') &&
|
|
(a[i] == 'y')) {
|
|
matchlen = 24;
|
|
mask |= GetClassLoaderRepository;
|
|
} else if (i >= 22 && /* addNotificationListener */
|
|
(a[i-22] == 'a') &&
|
|
(a[i-21] == 'd') &&
|
|
(a[i-20] == 'd') &&
|
|
(a[i-19] == 'N') &&
|
|
(a[i-18] == 'o') &&
|
|
(a[i-17] == 't') &&
|
|
(a[i-16] == 'i') &&
|
|
(a[i-15] == 'f') &&
|
|
(a[i-14] == 'i') &&
|
|
(a[i-13] == 'c') &&
|
|
(a[i-12] == 'a') &&
|
|
(a[i-11] == 't') &&
|
|
(a[i-10] == 'i') &&
|
|
(a[i-9] == 'o') &&
|
|
(a[i-8] == 'n') &&
|
|
(a[i-7] == 'L') &&
|
|
(a[i-6] == 'i') &&
|
|
(a[i-5] == 's') &&
|
|
(a[i-4] == 't') &&
|
|
(a[i-3] == 'e') &&
|
|
(a[i-2] == 'n') &&
|
|
(a[i-1] == 'e') &&
|
|
(a[i] == 'r')) {
|
|
matchlen = 23;
|
|
mask |= AddNotificationListener;
|
|
} else if (i >= 16 && /* getClassLoaderFor */
|
|
(a[i-16] == 'g') &&
|
|
(a[i-15] == 'e') &&
|
|
(a[i-14] == 't') &&
|
|
(a[i-13] == 'C') &&
|
|
(a[i-12] == 'l') &&
|
|
(a[i-11] == 'a') &&
|
|
(a[i-10] == 's') &&
|
|
(a[i-9] == 's') &&
|
|
(a[i-8] == 'L') &&
|
|
(a[i-7] == 'o') &&
|
|
(a[i-6] == 'a') &&
|
|
(a[i-5] == 'd') &&
|
|
(a[i-4] == 'e') &&
|
|
(a[i-3] == 'r') &&
|
|
(a[i-2] == 'F') &&
|
|
(a[i-1] == 'o') &&
|
|
(a[i] == 'r')) {
|
|
matchlen = 17;
|
|
mask |= GetClassLoaderFor;
|
|
} else if (i >= 16 && /* getObjectInstance */
|
|
(a[i-16] == 'g') &&
|
|
(a[i-15] == 'e') &&
|
|
(a[i-14] == 't') &&
|
|
(a[i-13] == 'O') &&
|
|
(a[i-12] == 'b') &&
|
|
(a[i-11] == 'j') &&
|
|
(a[i-10] == 'e') &&
|
|
(a[i-9] == 'c') &&
|
|
(a[i-8] == 't') &&
|
|
(a[i-7] == 'I') &&
|
|
(a[i-6] == 'n') &&
|
|
(a[i-5] == 's') &&
|
|
(a[i-4] == 't') &&
|
|
(a[i-3] == 'a') &&
|
|
(a[i-2] == 'n') &&
|
|
(a[i-1] == 'c') &&
|
|
(a[i] == 'e')) {
|
|
matchlen = 17;
|
|
mask |= GetObjectInstance;
|
|
} else if (i >= 14 && /* unregisterMBean */
|
|
(a[i-14] == 'u') &&
|
|
(a[i-13] == 'n') &&
|
|
(a[i-12] == 'r') &&
|
|
(a[i-11] == 'e') &&
|
|
(a[i-10] == 'g') &&
|
|
(a[i-9] == 'i') &&
|
|
(a[i-8] == 's') &&
|
|
(a[i-7] == 't') &&
|
|
(a[i-6] == 'e') &&
|
|
(a[i-5] == 'r') &&
|
|
(a[i-4] == 'M') &&
|
|
(a[i-3] == 'B') &&
|
|
(a[i-2] == 'e') &&
|
|
(a[i-1] == 'a') &&
|
|
(a[i] == 'n')) {
|
|
matchlen = 15;
|
|
mask |= UnregisterMBean;
|
|
} else if (i >= 13 && /* getClassLoader */
|
|
(a[i-13] == 'g') &&
|
|
(a[i-12] == 'e') &&
|
|
(a[i-11] == 't') &&
|
|
(a[i-10] == 'C') &&
|
|
(a[i-9] == 'l') &&
|
|
(a[i-8] == 'a') &&
|
|
(a[i-7] == 's') &&
|
|
(a[i-6] == 's') &&
|
|
(a[i-5] == 'L') &&
|
|
(a[i-4] == 'o') &&
|
|
(a[i-3] == 'a') &&
|
|
(a[i-2] == 'd') &&
|
|
(a[i-1] == 'e') &&
|
|
(a[i] == 'r')) {
|
|
matchlen = 14;
|
|
mask |= GetClassLoader;
|
|
} else if (i >= 12 && /* registerMBean */
|
|
(a[i-12] == 'r') &&
|
|
(a[i-11] == 'e') &&
|
|
(a[i-10] == 'g') &&
|
|
(a[i-9] == 'i') &&
|
|
(a[i-8] == 's') &&
|
|
(a[i-7] == 't') &&
|
|
(a[i-6] == 'e') &&
|
|
(a[i-5] == 'r') &&
|
|
(a[i-4] == 'M') &&
|
|
(a[i-3] == 'B') &&
|
|
(a[i-2] == 'e') &&
|
|
(a[i-1] == 'a') &&
|
|
(a[i] == 'n')) {
|
|
matchlen = 13;
|
|
mask |= RegisterMBean;
|
|
} else if (i >= 11 && /* getAttribute */
|
|
(a[i-11] == 'g') &&
|
|
(a[i-10] == 'e') &&
|
|
(a[i-9] == 't') &&
|
|
(a[i-8] == 'A') &&
|
|
(a[i-7] == 't') &&
|
|
(a[i-6] == 't') &&
|
|
(a[i-5] == 'r') &&
|
|
(a[i-4] == 'i') &&
|
|
(a[i-3] == 'b') &&
|
|
(a[i-2] == 'u') &&
|
|
(a[i-1] == 't') &&
|
|
(a[i] == 'e')) {
|
|
matchlen = 12;
|
|
mask |= GetAttribute;
|
|
} else if (i >= 11 && /* getMBeanInfo */
|
|
(a[i-11] == 'g') &&
|
|
(a[i-10] == 'e') &&
|
|
(a[i-9] == 't') &&
|
|
(a[i-8] == 'M') &&
|
|
(a[i-7] == 'B') &&
|
|
(a[i-6] == 'e') &&
|
|
(a[i-5] == 'a') &&
|
|
(a[i-4] == 'n') &&
|
|
(a[i-3] == 'I') &&
|
|
(a[i-2] == 'n') &&
|
|
(a[i-1] == 'f') &&
|
|
(a[i] == 'o')) {
|
|
matchlen = 12;
|
|
mask |= GetMBeanInfo;
|
|
} else if (i >= 11 && /* isInstanceOf */
|
|
(a[i-11] == 'i') &&
|
|
(a[i-10] == 's') &&
|
|
(a[i-9] == 'I') &&
|
|
(a[i-8] == 'n') &&
|
|
(a[i-7] == 's') &&
|
|
(a[i-6] == 't') &&
|
|
(a[i-5] == 'a') &&
|
|
(a[i-4] == 'n') &&
|
|
(a[i-3] == 'c') &&
|
|
(a[i-2] == 'e') &&
|
|
(a[i-1] == 'O') &&
|
|
(a[i] == 'f')) {
|
|
matchlen = 12;
|
|
mask |= IsInstanceOf;
|
|
} else if (i >= 11 && /* setAttribute */
|
|
(a[i-11] == 's') &&
|
|
(a[i-10] == 'e') &&
|
|
(a[i-9] == 't') &&
|
|
(a[i-8] == 'A') &&
|
|
(a[i-7] == 't') &&
|
|
(a[i-6] == 't') &&
|
|
(a[i-5] == 'r') &&
|
|
(a[i-4] == 'i') &&
|
|
(a[i-3] == 'b') &&
|
|
(a[i-2] == 'u') &&
|
|
(a[i-1] == 't') &&
|
|
(a[i] == 'e')) {
|
|
matchlen = 12;
|
|
mask |= SetAttribute;
|
|
} else if (i >= 10 && /* instantiate */
|
|
(a[i-10] == 'i') &&
|
|
(a[i-9] == 'n') &&
|
|
(a[i-8] == 's') &&
|
|
(a[i-7] == 't') &&
|
|
(a[i-6] == 'a') &&
|
|
(a[i-5] == 'n') &&
|
|
(a[i-4] == 't') &&
|
|
(a[i-3] == 'i') &&
|
|
(a[i-2] == 'a') &&
|
|
(a[i-1] == 't') &&
|
|
(a[i] == 'e')) {
|
|
matchlen = 11;
|
|
mask |= Instantiate;
|
|
} else if (i >= 10 && /* queryMBeans */
|
|
(a[i-10] == 'q') &&
|
|
(a[i-9] == 'u') &&
|
|
(a[i-8] == 'e') &&
|
|
(a[i-7] == 'r') &&
|
|
(a[i-6] == 'y') &&
|
|
(a[i-5] == 'M') &&
|
|
(a[i-4] == 'B') &&
|
|
(a[i-3] == 'e') &&
|
|
(a[i-2] == 'a') &&
|
|
(a[i-1] == 'n') &&
|
|
(a[i] == 's')) {
|
|
matchlen = 11;
|
|
mask |= QueryMBeans;
|
|
} else if (i >= 9 && /* getDomains */
|
|
(a[i-9] == 'g') &&
|
|
(a[i-8] == 'e') &&
|
|
(a[i-7] == 't') &&
|
|
(a[i-6] == 'D') &&
|
|
(a[i-5] == 'o') &&
|
|
(a[i-4] == 'm') &&
|
|
(a[i-3] == 'a') &&
|
|
(a[i-2] == 'i') &&
|
|
(a[i-1] == 'n') &&
|
|
(a[i] == 's')) {
|
|
matchlen = 10;
|
|
mask |= GetDomains;
|
|
} else if (i >= 9 && /* queryNames */
|
|
(a[i-9] == 'q') &&
|
|
(a[i-8] == 'u') &&
|
|
(a[i-7] == 'e') &&
|
|
(a[i-6] == 'r') &&
|
|
(a[i-5] == 'y') &&
|
|
(a[i-4] == 'N') &&
|
|
(a[i-3] == 'a') &&
|
|
(a[i-2] == 'm') &&
|
|
(a[i-1] == 'e') &&
|
|
(a[i] == 's')) {
|
|
matchlen = 10;
|
|
mask |= QueryNames;
|
|
} else if (i >= 5 && /* invoke */
|
|
(a[i-5] == 'i') &&
|
|
(a[i-4] == 'n') &&
|
|
(a[i-3] == 'v') &&
|
|
(a[i-2] == 'o') &&
|
|
(a[i-1] == 'k') &&
|
|
(a[i] == 'e')) {
|
|
matchlen = 6;
|
|
mask |= Invoke;
|
|
} else {
|
|
// parse error
|
|
throw new IllegalArgumentException("Invalid permission: " +
|
|
action);
|
|
}
|
|
|
|
// make sure we didn't just match the tail of a word
|
|
// like "ackbarfaccept". Also, skip to the comma.
|
|
boolean seencomma = false;
|
|
while (i >= matchlen && !seencomma) {
|
|
switch(a[i-matchlen]) {
|
|
case ',':
|
|
seencomma = true;
|
|
break;
|
|
case ' ': case '\r': case '\n':
|
|
case '\f': case '\t':
|
|
break;
|
|
default:
|
|
throw new IllegalArgumentException("Invalid permission: " +
|
|
action);
|
|
}
|
|
i--;
|
|
}
|
|
|
|
// point i at the location of the comma minus one (or -1).
|
|
i -= matchlen;
|
|
}
|
|
|
|
return mask;
|
|
}
|
|
|
|
/**
|
|
* <p>Checks if this MBeanPermission object "implies" the
|
|
* specified permission.</p>
|
|
*
|
|
* <p>More specifically, this method returns true if:</p>
|
|
*
|
|
* <ul>
|
|
*
|
|
* <li> <i>p</i> is an instance of MBeanPermission; and</li>
|
|
*
|
|
* <li> <i>p</i> has a null className or <i>p</i>'s className
|
|
* matches this object's className; and</li>
|
|
*
|
|
* <li> <i>p</i> has a null member or <i>p</i>'s member matches this
|
|
* object's member; and</li>
|
|
*
|
|
* <li> <i>p</i> has a null object name or <i>p</i>'s
|
|
* object name matches this object's object name; and</li>
|
|
*
|
|
* <li> <i>p</i>'s actions are a subset of this object's actions</li>
|
|
*
|
|
* </ul>
|
|
*
|
|
* <p>If this object's className is "<code>*</code>", <i>p</i>'s
|
|
* className always matches it. If it is "<code>a.*</code>", <i>p</i>'s
|
|
* className matches it if it begins with "<code>a.</code>".</p>
|
|
*
|
|
* <p>If this object's member is "<code>*</code>", <i>p</i>'s
|
|
* member always matches it.</p>
|
|
*
|
|
* <p>If this object's objectName <i>n1</i> is an object name pattern,
|
|
* <i>p</i>'s objectName <i>n2</i> matches it if
|
|
* {@link ObjectName#equals <i>n1</i>.equals(<i>n2</i>)} or if
|
|
* {@link ObjectName#apply <i>n1</i>.apply(<i>n2</i>)}.</p>
|
|
*
|
|
* <p>A permission that includes the <code>queryMBeans</code> action
|
|
* is considered to include <code>queryNames</code> as well.</p>
|
|
*
|
|
* @param p the permission to check against.
|
|
* @return true if the specified permission is implied by this object,
|
|
* false if not.
|
|
*/
|
|
public boolean implies(Permission p) {
|
|
if (!(p instanceof MBeanPermission))
|
|
return false;
|
|
|
|
MBeanPermission that = (MBeanPermission) p;
|
|
|
|
// Actions
|
|
//
|
|
// The actions in 'this' permission must be a
|
|
// superset of the actions in 'that' permission
|
|
//
|
|
|
|
/* "queryMBeans" implies "queryNames" */
|
|
if ((this.mask & QueryMBeans) == QueryMBeans) {
|
|
if (((this.mask | QueryNames) & that.mask) != that.mask) {
|
|
//System.out.println("action [with QueryNames] does not imply");
|
|
return false;
|
|
}
|
|
} else {
|
|
if ((this.mask & that.mask) != that.mask) {
|
|
//System.out.println("action does not imply");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Target name
|
|
//
|
|
// The 'className' check is true iff:
|
|
// 1) the className in 'this' permission is omitted or "*", or
|
|
// 2) the className in 'that' permission is omitted or "*", or
|
|
// 3) the className in 'this' permission does pattern
|
|
// matching with the className in 'that' permission.
|
|
//
|
|
// The 'member' check is true iff:
|
|
// 1) the member in 'this' permission is omitted or "*", or
|
|
// 2) the member in 'that' permission is omitted or "*", or
|
|
// 3) the member in 'this' permission equals the member in
|
|
// 'that' permission.
|
|
//
|
|
// The 'object name' check is true iff:
|
|
// 1) the object name in 'this' permission is omitted or "*:*", or
|
|
// 2) the object name in 'that' permission is omitted or "*:*", or
|
|
// 3) the object name in 'this' permission does pattern
|
|
// matching with the object name in 'that' permission.
|
|
//
|
|
|
|
/* Check if this.className implies that.className.
|
|
|
|
If that.classNamePrefix is empty that means the className is
|
|
irrelevant for this permission check. Otherwise, we do not
|
|
expect that "that" contains a wildcard, since it is a
|
|
needed permission. So we assume that.classNameExactMatch. */
|
|
|
|
if (that.classNamePrefix == null) {
|
|
// bottom is implied
|
|
} else if (this.classNamePrefix == null) {
|
|
// bottom implies nothing but itself
|
|
return false;
|
|
} else if (this.classNameExactMatch) {
|
|
if (!that.classNameExactMatch)
|
|
return false; // exact never implies wildcard
|
|
if (!that.classNamePrefix.equals(this.classNamePrefix))
|
|
return false; // exact match fails
|
|
} else {
|
|
// prefix match, works even if "that" is also a wildcard
|
|
// e.g. a.* implies a.* and a.b.*
|
|
if (!that.classNamePrefix.startsWith(this.classNamePrefix))
|
|
return false;
|
|
}
|
|
|
|
/* Check if this.member implies that.member */
|
|
|
|
if (that.member == null) {
|
|
// bottom is implied
|
|
} else if (this.member == null) {
|
|
// bottom implies nothing but itself
|
|
return false;
|
|
} else if (this.member.equals("*")) {
|
|
// wildcard implies everything (including itself)
|
|
} else if (!this.member.equals(that.member)) {
|
|
return false;
|
|
}
|
|
|
|
/* Check if this.objectName implies that.objectName */
|
|
|
|
if (that.objectName == null) {
|
|
// bottom is implied
|
|
} else if (this.objectName == null) {
|
|
// bottom implies nothing but itself
|
|
return false;
|
|
} else if (!this.objectName.apply(that.objectName)) {
|
|
/* ObjectName.apply returns false if that.objectName is a
|
|
wildcard so we also allow equals for that case. This
|
|
never happens during real permission checks, but means
|
|
the implies relation is reflexive. */
|
|
if (!this.objectName.equals(that.objectName))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Checks two MBeanPermission objects for equality. Checks
|
|
* that <i>obj</i> is an MBeanPermission, and has the same
|
|
* name and actions as this object.
|
|
* <P>
|
|
* @param obj the object we are testing for equality with this object.
|
|
* @return true if obj is an MBeanPermission, and has the
|
|
* same name and actions as this MBeanPermission object.
|
|
*/
|
|
public boolean equals(Object obj) {
|
|
if (obj == this)
|
|
return true;
|
|
|
|
if (! (obj instanceof MBeanPermission))
|
|
return false;
|
|
|
|
MBeanPermission that = (MBeanPermission) obj;
|
|
|
|
return (this.mask == that.mask) &&
|
|
(this.getName().equals(that.getName()));
|
|
}
|
|
|
|
/**
|
|
* Deserialize this object based on its name and actions.
|
|
*/
|
|
private void readObject(ObjectInputStream in)
|
|
throws IOException, ClassNotFoundException {
|
|
in.defaultReadObject();
|
|
parseName();
|
|
parseActions();
|
|
}
|
|
}
|