author | xuelei |
Wed, 28 Sep 2011 15:10:02 -0700 | |
changeset 10709 | d865c9f21240 |
parent 9035 | 1255eb81cc2f |
child 18830 | 90956ead732f |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package javax.security.auth; |
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import java.util.*; |
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import java.text.MessageFormat; |
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import java.security.Permission; |
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import java.security.PermissionCollection; |
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import java.security.Principal; |
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import sun.security.util.ResourcesMgr; |
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||
35 |
/** |
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* This class is used to protect access to private Credentials |
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* belonging to a particular <code>Subject</code>. The <code>Subject</code> |
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* is represented by a Set of Principals. |
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* |
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* <p> The target name of this <code>Permission</code> specifies |
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* a Credential class name, and a Set of Principals. |
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* The only valid value for this Permission's actions is, "read". |
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* The target name must abide by the following syntax: |
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* |
|
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* <pre> |
|
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* CredentialClass {PrincipalClass "PrincipalName"}* |
|
47 |
* </pre> |
|
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* |
|
49 |
* For example, the following permission grants access to the |
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* com.sun.PrivateCredential owned by Subjects which have |
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* a com.sun.Principal with the name, "duke". Note that although |
|
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* this example, as well as all the examples below, do not contain |
|
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* Codebase, SignedBy, or Principal information in the grant statement |
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* (for simplicity reasons), actual policy configurations should |
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* specify that information when appropriate. |
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* |
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* <pre> |
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* |
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* grant { |
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* permission javax.security.auth.PrivateCredentialPermission |
|
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* "com.sun.PrivateCredential com.sun.Principal \"duke\"", |
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* "read"; |
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* }; |
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* </pre> |
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* |
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* If CredentialClass is "*", then access is granted to |
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* all private Credentials belonging to the specified |
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* <code>Subject</code>. |
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* If "PrincipalName" is "*", then access is granted to the |
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* specified Credential owned by any <code>Subject</code> that has the |
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* specified <code>Principal</code> (the actual PrincipalName doesn't matter). |
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* For example, the following grants access to the |
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* a.b.Credential owned by any <code>Subject</code> that has |
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* an a.b.Principal. |
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* |
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* <pre> |
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* grant { |
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* permission javax.security.auth.PrivateCredentialPermission |
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* "a.b.Credential a.b.Principal "*"", |
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* "read"; |
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* }; |
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* </pre> |
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* |
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* If both the PrincipalClass and "PrincipalName" are "*", |
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* then access is granted to the specified Credential owned by |
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* any <code>Subject</code>. |
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* |
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* <p> In addition, the PrincipalClass/PrincipalName pairing may be repeated: |
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* |
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* <pre> |
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* grant { |
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* permission javax.security.auth.PrivateCredentialPermission |
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* "a.b.Credential a.b.Principal "duke" c.d.Principal "dukette"", |
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* "read"; |
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* }; |
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* </pre> |
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* |
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* The above grants access to the private Credential, "a.b.Credential", |
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* belonging to a <code>Subject</code> with at least two associated Principals: |
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* "a.b.Principal" with the name, "duke", and "c.d.Principal", with the name, |
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* "dukette". |
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* |
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*/ |
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public final class PrivateCredentialPermission extends Permission { |
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private static final long serialVersionUID = 5284372143517237068L; |
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private static final CredOwner[] EMPTY_PRINCIPALS = new CredOwner[0]; |
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/** |
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* @serial |
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*/ |
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private String credentialClass; |
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115 |
/** |
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* @serial The Principals associated with this permission. |
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* The set contains elements of type, |
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* <code>PrivateCredentialPermission.CredOwner</code>. |
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*/ |
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private Set<Principal> principals; // ignored - kept around for compatibility |
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private transient CredOwner[] credOwners; |
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/** |
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* @serial |
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*/ |
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private boolean testing = false; |
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128 |
/** |
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* Create a new <code>PrivateCredentialPermission</code> |
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* with the specified <code>credentialClass</code> and Principals. |
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*/ |
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PrivateCredentialPermission(String credentialClass, |
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Set<Principal> principals) { |
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super(credentialClass); |
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this.credentialClass = credentialClass; |
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synchronized(principals) { |
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if (principals.size() == 0) { |
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this.credOwners = EMPTY_PRINCIPALS; |
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} else { |
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this.credOwners = new CredOwner[principals.size()]; |
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int index = 0; |
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Iterator<Principal> i = principals.iterator(); |
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while (i.hasNext()) { |
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Principal p = i.next(); |
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this.credOwners[index++] = new CredOwner |
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(p.getClass().getName(), |
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p.getName()); |
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} |
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} |
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} |
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} |
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/** |
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* Creates a new <code>PrivateCredentialPermission</code> |
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* with the specified <code>name</code>. The <code>name</code> |
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* specifies both a Credential class and a <code>Principal</code> Set. |
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* |
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* <p> |
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* |
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* @param name the name specifying the Credential class and |
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* <code>Principal</code> Set. <p> |
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* |
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* @param actions the actions specifying that the Credential can be read. |
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* |
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* @throws IllegalArgumentException if <code>name</code> does not conform |
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* to the correct syntax or if <code>actions</code> is not "read". |
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*/ |
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public PrivateCredentialPermission(String name, String actions) { |
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super(name); |
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if (!"read".equalsIgnoreCase(actions)) |
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throw new IllegalArgumentException |
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(ResourcesMgr.getString("actions.can.only.be.read.")); |
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init(name); |
177 |
} |
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178 |
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179 |
/** |
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* Returns the Class name of the Credential associated with this |
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181 |
* <code>PrivateCredentialPermission</code>. |
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* |
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* <p> |
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* |
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* @return the Class name of the Credential associated with this |
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* <code>PrivateCredentialPermission</code>. |
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*/ |
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public String getCredentialClass() { |
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return credentialClass; |
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} |
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/** |
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* Returns the <code>Principal</code> classes and names |
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* associated with this <code>PrivateCredentialPermission</code>. |
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* The information is returned as a two-dimensional array (array[x][y]). |
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* The 'x' value corresponds to the number of <code>Principal</code> |
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* class and name pairs. When (y==0), it corresponds to |
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* the <code>Principal</code> class value, and when (y==1), |
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* it corresponds to the <code>Principal</code> name value. |
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* For example, array[0][0] corresponds to the class name of |
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* the first <code>Principal</code> in the array. array[0][1] |
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* corresponds to the <code>Principal</code> name of the |
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* first <code>Principal</code> in the array. |
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* |
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* <p> |
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* |
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* @return the <code>Principal</code> class and names associated |
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* with this <code>PrivateCredentialPermission</code>. |
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*/ |
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public String[][] getPrincipals() { |
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212 |
if (credOwners == null || credOwners.length == 0) { |
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return new String[0][0]; |
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} |
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String[][] pArray = new String[credOwners.length][2]; |
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for (int i = 0; i < credOwners.length; i++) { |
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pArray[i][0] = credOwners[i].principalClass; |
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pArray[i][1] = credOwners[i].principalName; |
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} |
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return pArray; |
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222 |
} |
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224 |
/** |
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* Checks if this <code>PrivateCredentialPermission</code> implies |
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226 |
* the specified <code>Permission</code>. |
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* |
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* <p> |
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229 |
* |
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230 |
* This method returns true if: |
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* <p><ul> |
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232 |
* <li> <i>p</i> is an instanceof PrivateCredentialPermission and <p> |
|
233 |
* <li> the target name for <i>p</i> is implied by this object's |
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* target name. For example: |
|
235 |
* <pre> |
|
236 |
* [* P1 "duke"] implies [a.b.Credential P1 "duke"]. |
|
237 |
* [C1 P1 "duke"] implies [C1 P1 "duke" P2 "dukette"]. |
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238 |
* [C1 P2 "dukette"] implies [C1 P1 "duke" P2 "dukette"]. |
|
239 |
* </pre> |
|
240 |
* </ul> |
|
241 |
* |
|
242 |
* <p> |
|
243 |
* |
|
244 |
* @param p the <code>Permission</code> to check against. |
|
245 |
* |
|
246 |
* @return true if this <code>PrivateCredentialPermission</code> implies |
|
247 |
* the specified <code>Permission</code>, false if not. |
|
248 |
*/ |
|
249 |
public boolean implies(Permission p) { |
|
250 |
||
251 |
if (p == null || !(p instanceof PrivateCredentialPermission)) |
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252 |
return false; |
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253 |
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254 |
PrivateCredentialPermission that = (PrivateCredentialPermission)p; |
|
255 |
||
256 |
if (!impliesCredentialClass(credentialClass, that.credentialClass)) |
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return false; |
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258 |
||
259 |
return impliesPrincipalSet(credOwners, that.credOwners); |
|
260 |
} |
|
261 |
||
262 |
/** |
|
263 |
* Checks two <code>PrivateCredentialPermission</code> objects for |
|
264 |
* equality. Checks that <i>obj</i> is a |
|
265 |
* <code>PrivateCredentialPermission</code>, |
|
266 |
* and has the same credential class as this object, |
|
267 |
* as well as the same Principals as this object. |
|
268 |
* The order of the Principals in the respective Permission's |
|
269 |
* target names is not relevant. |
|
270 |
* |
|
271 |
* <p> |
|
272 |
* |
|
273 |
* @param obj the object we are testing for equality with this object. |
|
274 |
* |
|
275 |
* @return true if obj is a <code>PrivateCredentialPermission</code>, |
|
276 |
* has the same credential class as this object, |
|
277 |
* and has the same Principals as this object. |
|
278 |
*/ |
|
279 |
public boolean equals(Object obj) { |
|
280 |
if (obj == this) |
|
281 |
return true; |
|
282 |
||
283 |
if (! (obj instanceof PrivateCredentialPermission)) |
|
284 |
return false; |
|
285 |
||
286 |
PrivateCredentialPermission that = (PrivateCredentialPermission)obj; |
|
287 |
||
288 |
return (this.implies(that) && that.implies(this)); |
|
289 |
} |
|
290 |
||
291 |
/** |
|
292 |
* Returns the hash code value for this object. |
|
293 |
* |
|
294 |
* @return a hash code value for this object. |
|
295 |
*/ |
|
296 |
public int hashCode() { |
|
297 |
return this.credentialClass.hashCode(); |
|
298 |
} |
|
299 |
||
300 |
/** |
|
301 |
* Returns the "canonical string representation" of the actions. |
|
302 |
* This method always returns the String, "read". |
|
303 |
* |
|
304 |
* <p> |
|
305 |
* |
|
306 |
* @return the actions (always returns "read"). |
|
307 |
*/ |
|
308 |
public String getActions() { |
|
309 |
return "read"; |
|
310 |
} |
|
311 |
||
312 |
/** |
|
313 |
* Return a homogeneous collection of PrivateCredentialPermissions |
|
314 |
* in a <code>PermissionCollection</code>. |
|
315 |
* No such <code>PermissionCollection</code> is defined, |
|
316 |
* so this method always returns <code>null</code>. |
|
317 |
* |
|
318 |
* <p> |
|
319 |
* |
|
320 |
* @return null in all cases. |
|
321 |
*/ |
|
322 |
public PermissionCollection newPermissionCollection() { |
|
323 |
return null; |
|
324 |
} |
|
325 |
||
326 |
private void init(String name) { |
|
327 |
||
328 |
if (name == null || name.trim().length() == 0) { |
|
329 |
throw new IllegalArgumentException("invalid empty name"); |
|
330 |
} |
|
331 |
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332 |
ArrayList<CredOwner> pList = new ArrayList<>(); |
2 | 333 |
StringTokenizer tokenizer = new StringTokenizer(name, " ", true); |
334 |
String principalClass = null; |
|
335 |
String principalName = null; |
|
336 |
||
337 |
if (testing) |
|
338 |
System.out.println("whole name = " + name); |
|
339 |
||
340 |
// get the Credential Class |
|
341 |
credentialClass = tokenizer.nextToken(); |
|
342 |
if (testing) |
|
343 |
System.out.println("Credential Class = " + credentialClass); |
|
344 |
||
345 |
if (tokenizer.hasMoreTokens() == false) { |
|
346 |
MessageFormat form = new MessageFormat(ResourcesMgr.getString |
|
7179
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|
347 |
("permission.name.name.syntax.invalid.")); |
2 | 348 |
Object[] source = {name}; |
349 |
throw new IllegalArgumentException |
|
350 |
(form.format(source) + ResourcesMgr.getString |
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|
351 |
("Credential.Class.not.followed.by.a.Principal.Class.and.Name")); |
2 | 352 |
} |
353 |
||
354 |
while (tokenizer.hasMoreTokens()) { |
|
355 |
||
356 |
// skip delimiter |
|
357 |
tokenizer.nextToken(); |
|
358 |
||
359 |
// get the Principal Class |
|
360 |
principalClass = tokenizer.nextToken(); |
|
361 |
if (testing) |
|
362 |
System.out.println(" Principal Class = " + principalClass); |
|
363 |
||
364 |
if (tokenizer.hasMoreTokens() == false) { |
|
365 |
MessageFormat form = new MessageFormat(ResourcesMgr.getString |
|
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|
366 |
("permission.name.name.syntax.invalid.")); |
2 | 367 |
Object[] source = {name}; |
368 |
throw new IllegalArgumentException |
|
369 |
(form.format(source) + ResourcesMgr.getString |
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|
370 |
("Principal.Class.not.followed.by.a.Principal.Name")); |
2 | 371 |
} |
372 |
||
373 |
// skip delimiter |
|
374 |
tokenizer.nextToken(); |
|
375 |
||
376 |
// get the Principal Name |
|
377 |
principalName = tokenizer.nextToken(); |
|
378 |
||
379 |
if (!principalName.startsWith("\"")) { |
|
380 |
MessageFormat form = new MessageFormat(ResourcesMgr.getString |
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|
381 |
("permission.name.name.syntax.invalid.")); |
2 | 382 |
Object[] source = {name}; |
383 |
throw new IllegalArgumentException |
|
384 |
(form.format(source) + ResourcesMgr.getString |
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|
385 |
("Principal.Name.must.be.surrounded.by.quotes")); |
2 | 386 |
} |
387 |
||
388 |
if (!principalName.endsWith("\"")) { |
|
389 |
||
390 |
// we have a name with spaces in it -- |
|
391 |
// keep parsing until we find the end quote, |
|
392 |
// and keep the spaces in the name |
|
393 |
||
394 |
while (tokenizer.hasMoreTokens()) { |
|
395 |
principalName = principalName + tokenizer.nextToken(); |
|
396 |
if (principalName.endsWith("\"")) |
|
397 |
break; |
|
398 |
} |
|
399 |
||
400 |
if (!principalName.endsWith("\"")) { |
|
401 |
MessageFormat form = new MessageFormat |
|
402 |
(ResourcesMgr.getString |
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|
403 |
("permission.name.name.syntax.invalid.")); |
2 | 404 |
Object[] source = {name}; |
405 |
throw new IllegalArgumentException |
|
406 |
(form.format(source) + ResourcesMgr.getString |
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|
407 |
("Principal.Name.missing.end.quote")); |
2 | 408 |
} |
409 |
} |
|
410 |
||
411 |
if (testing) |
|
412 |
System.out.println("\tprincipalName = '" + principalName + "'"); |
|
413 |
||
414 |
principalName = principalName.substring |
|
415 |
(1, principalName.length() - 1); |
|
416 |
||
417 |
if (principalClass.equals("*") && |
|
418 |
!principalName.equals("*")) { |
|
419 |
throw new IllegalArgumentException(ResourcesMgr.getString |
|
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|
420 |
("PrivateCredentialPermission.Principal.Class.can.not.be.a.wildcard.value.if.Principal.Name.is.not.a.wildcard.value")); |
2 | 421 |
} |
422 |
||
423 |
if (testing) |
|
424 |
System.out.println("\tprincipalName = '" + principalName + "'"); |
|
425 |
||
426 |
pList.add(new CredOwner(principalClass, principalName)); |
|
427 |
} |
|
428 |
||
429 |
this.credOwners = new CredOwner[pList.size()]; |
|
430 |
pList.toArray(this.credOwners); |
|
431 |
} |
|
432 |
||
433 |
private boolean impliesCredentialClass(String thisC, String thatC) { |
|
434 |
||
435 |
// this should never happen |
|
436 |
if (thisC == null || thatC == null) |
|
437 |
return false; |
|
438 |
||
439 |
if (testing) |
|
440 |
System.out.println("credential class comparison: " + |
|
441 |
thisC + "/" + thatC); |
|
442 |
||
443 |
if (thisC.equals("*")) |
|
444 |
return true; |
|
445 |
||
446 |
/** |
|
447 |
* XXX let's not enable this for now -- |
|
448 |
* if people want it, we'll enable it later |
|
449 |
*/ |
|
450 |
/* |
|
451 |
if (thisC.endsWith("*")) { |
|
452 |
String cClass = thisC.substring(0, thisC.length() - 2); |
|
453 |
return thatC.startsWith(cClass); |
|
454 |
} |
|
455 |
*/ |
|
456 |
||
457 |
return thisC.equals(thatC); |
|
458 |
} |
|
459 |
||
460 |
private boolean impliesPrincipalSet(CredOwner[] thisP, CredOwner[] thatP) { |
|
461 |
||
462 |
// this should never happen |
|
463 |
if (thisP == null || thatP == null) |
|
464 |
return false; |
|
465 |
||
466 |
if (thatP.length == 0) |
|
467 |
return true; |
|
468 |
||
469 |
if (thisP.length == 0) |
|
470 |
return false; |
|
471 |
||
472 |
for (int i = 0; i < thisP.length; i++) { |
|
473 |
boolean foundMatch = false; |
|
474 |
for (int j = 0; j < thatP.length; j++) { |
|
475 |
if (thisP[i].implies(thatP[j])) { |
|
476 |
foundMatch = true; |
|
477 |
break; |
|
478 |
} |
|
479 |
} |
|
480 |
if (!foundMatch) { |
|
481 |
return false; |
|
482 |
} |
|
483 |
} |
|
484 |
return true; |
|
485 |
} |
|
486 |
||
487 |
/** |
|
488 |
* Reads this object from a stream (i.e., deserializes it) |
|
489 |
*/ |
|
490 |
private void readObject(java.io.ObjectInputStream s) throws |
|
491 |
java.io.IOException, |
|
492 |
ClassNotFoundException { |
|
493 |
||
494 |
s.defaultReadObject(); |
|
495 |
||
496 |
// perform new initialization from the permission name |
|
497 |
||
498 |
if (getName().indexOf(" ") == -1 && getName().indexOf("\"") == -1) { |
|
499 |
||
500 |
// name only has a credential class specified |
|
501 |
credentialClass = getName(); |
|
502 |
credOwners = EMPTY_PRINCIPALS; |
|
503 |
||
504 |
} else { |
|
505 |
||
506 |
// perform regular initialization |
|
507 |
init(getName()); |
|
508 |
} |
|
509 |
} |
|
510 |
||
511 |
/** |
|
512 |
* @serial include |
|
513 |
*/ |
|
514 |
static class CredOwner implements java.io.Serializable { |
|
515 |
||
516 |
private static final long serialVersionUID = -5607449830436408266L; |
|
517 |
||
518 |
/** |
|
519 |
* @serial |
|
520 |
*/ |
|
521 |
String principalClass; |
|
522 |
/** |
|
523 |
* @serial |
|
524 |
*/ |
|
525 |
String principalName; |
|
526 |
||
527 |
CredOwner(String principalClass, String principalName) { |
|
528 |
this.principalClass = principalClass; |
|
529 |
this.principalName = principalName; |
|
530 |
} |
|
531 |
||
532 |
public boolean implies(Object obj) { |
|
533 |
if (obj == null || !(obj instanceof CredOwner)) |
|
534 |
return false; |
|
535 |
||
536 |
CredOwner that = (CredOwner)obj; |
|
537 |
||
538 |
if (principalClass.equals("*") || |
|
539 |
principalClass.equals(that.principalClass)) { |
|
540 |
||
541 |
if (principalName.equals("*") || |
|
542 |
principalName.equals(that.principalName)) { |
|
543 |
return true; |
|
544 |
} |
|
545 |
} |
|
546 |
||
547 |
/** |
|
548 |
* XXX no code yet to support a.b.* |
|
549 |
*/ |
|
550 |
||
551 |
return false; |
|
552 |
} |
|
553 |
||
554 |
public String toString() { |
|
555 |
MessageFormat form = new MessageFormat(ResourcesMgr.getString |
|
7179
4afb81e50183
6987827: security/util/Resources.java needs improvement
weijun
parents:
5506
diff
changeset
|
556 |
("CredOwner.Principal.Class.class.Principal.Name.name")); |
2 | 557 |
Object[] source = {principalClass, principalName}; |
558 |
return (form.format(source)); |
|
559 |
} |
|
560 |
} |
|
561 |
} |