author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 45434 | jdk/src/java.base/share/classes/javax/security/auth/PrivateCredentialPermission.java@4582657c7260 |
child 53018 | 8bf9268df0e2 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2015, 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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/** |
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* This class is used to protect access to private Credentials |
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* belonging to a particular {@code Subject}. The {@code Subject} |
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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} 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"}* |
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* </pre> |
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* |
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* 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}. |
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* If "PrincipalName" is "*", then access is granted to the |
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* specified Credential owned by any {@code Subject} that has the |
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* specified {@code Principal} (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} 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}. |
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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} 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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* @since 1.4 |
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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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/** |
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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}. |
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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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/** |
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* Create a new {@code PrivateCredentialPermission} |
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* with the specified {@code credentialClass} 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} |
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* with the specified {@code name}. The {@code name} |
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* specifies both a Credential class and a {@code Principal} Set. |
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* |
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* @param name the name specifying the Credential class and |
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* {@code Principal} Set. |
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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} does not conform |
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* to the correct syntax or if {@code actions} 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); |
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} |
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/** |
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* Returns the Class name of the Credential associated with this |
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* {@code PrivateCredentialPermission}. |
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* |
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* @return the Class name of the Credential associated with this |
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* {@code PrivateCredentialPermission}. |
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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} classes and names |
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* associated with this {@code PrivateCredentialPermission}. |
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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} |
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* class and name pairs. When (y==0), it corresponds to |
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* the {@code Principal} class value, and when (y==1), |
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* it corresponds to the {@code Principal} 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} in the array. array[0][1] |
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* corresponds to the {@code Principal} name of the |
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* first {@code Principal} in the array. |
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* |
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* @return the {@code Principal} class and names associated |
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* with this {@code PrivateCredentialPermission}. |
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*/ |
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public String[][] getPrincipals() { |
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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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} |
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/** |
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* Checks if this {@code PrivateCredentialPermission} implies |
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* the specified {@code Permission}. |
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* |
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* <p> |
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* |
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* This method returns true if: |
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* <ul> |
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* <li> {@code p} is an instanceof PrivateCredentialPermission and |
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* <li> the target name for {@code p} is implied by this object's |
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* target name. For example: |
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* <pre> |
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* [* P1 "duke"] implies [a.b.Credential P1 "duke"]. |
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* [C1 P1 "duke"] implies [C1 P1 "duke" P2 "dukette"]. |
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* [C1 P2 "dukette"] implies [C1 P1 "duke" P2 "dukette"]. |
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* </pre> |
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* </ul> |
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* |
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* @param p the {@code Permission} to check against. |
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* |
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* @return true if this {@code PrivateCredentialPermission} implies |
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* the specified {@code Permission}, false if not. |
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*/ |
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public boolean implies(Permission p) { |
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if (p == null || !(p instanceof PrivateCredentialPermission)) |
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return false; |
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PrivateCredentialPermission that = (PrivateCredentialPermission)p; |
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if (!impliesCredentialClass(credentialClass, that.credentialClass)) |
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return false; |
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return impliesPrincipalSet(credOwners, that.credOwners); |
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} |
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/** |
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* Checks two {@code PrivateCredentialPermission} objects for |
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* equality. Checks that {@code obj} is a |
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* {@code PrivateCredentialPermission}, |
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* and has the same credential class as this object, |
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* as well as the same Principals as this object. |
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* The order of the Principals in the respective Permission's |
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* target names is not relevant. |
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* |
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* @param obj the object we are testing for equality with this object. |
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* |
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* @return true if obj is a {@code PrivateCredentialPermission}, |
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* has the same credential class as this object, |
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* and has the same Principals as this object. |
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*/ |
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public boolean equals(Object obj) { |
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if (obj == this) |
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return true; |
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if (! (obj instanceof PrivateCredentialPermission)) |
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return false; |
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PrivateCredentialPermission that = (PrivateCredentialPermission)obj; |
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return (this.implies(that) && that.implies(this)); |
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} |
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/** |
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* Returns the hash code value for this object. |
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* |
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* @return a hash code value for this object. |
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*/ |
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public int hashCode() { |
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return this.credentialClass.hashCode(); |
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} |
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/** |
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* Returns the "canonical string representation" of the actions. |
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* This method always returns the String, "read". |
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* |
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* @return the actions (always returns "read"). |
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*/ |
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public String getActions() { |
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return "read"; |
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} |
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/** |
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* Return a homogeneous collection of PrivateCredentialPermissions |
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* in a {@code PermissionCollection}. |
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* No such {@code PermissionCollection} is defined, |
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* so this method always returns {@code null}. |
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* |
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* @return null in all cases. |
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*/ |
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public PermissionCollection newPermissionCollection() { |
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return null; |
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} |
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private void init(String name) { |
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if (name == null || name.trim().length() == 0) { |
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throw new IllegalArgumentException("invalid empty name"); |
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} |
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ArrayList<CredOwner> pList = new ArrayList<>(); |
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StringTokenizer tokenizer = new StringTokenizer(name, " ", true); |
321 |
String principalClass = null; |
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String principalName = null; |
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if (testing) |
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System.out.println("whole name = " + name); |
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// get the Credential Class |
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credentialClass = tokenizer.nextToken(); |
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if (testing) |
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System.out.println("Credential Class = " + credentialClass); |
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if (tokenizer.hasMoreTokens() == false) { |
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MessageFormat form = new MessageFormat(ResourcesMgr.getString |
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("permission.name.name.syntax.invalid.")); |
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Object[] source = {name}; |
336 |
throw new IllegalArgumentException |
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(form.format(source) + ResourcesMgr.getString |
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338 |
("Credential.Class.not.followed.by.a.Principal.Class.and.Name")); |
2 | 339 |
} |
340 |
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341 |
while (tokenizer.hasMoreTokens()) { |
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342 |
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343 |
// skip delimiter |
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344 |
tokenizer.nextToken(); |
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345 |
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346 |
// get the Principal Class |
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347 |
principalClass = tokenizer.nextToken(); |
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348 |
if (testing) |
|
349 |
System.out.println(" Principal Class = " + principalClass); |
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350 |
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351 |
if (tokenizer.hasMoreTokens() == false) { |
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MessageFormat form = new MessageFormat(ResourcesMgr.getString |
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353 |
("permission.name.name.syntax.invalid.")); |
2 | 354 |
Object[] source = {name}; |
355 |
throw new IllegalArgumentException |
|
356 |
(form.format(source) + ResourcesMgr.getString |
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357 |
("Principal.Class.not.followed.by.a.Principal.Name")); |
2 | 358 |
} |
359 |
||
360 |
// skip delimiter |
|
361 |
tokenizer.nextToken(); |
|
362 |
||
363 |
// get the Principal Name |
|
364 |
principalName = tokenizer.nextToken(); |
|
365 |
||
366 |
if (!principalName.startsWith("\"")) { |
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367 |
MessageFormat form = new MessageFormat(ResourcesMgr.getString |
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368 |
("permission.name.name.syntax.invalid.")); |
2 | 369 |
Object[] source = {name}; |
370 |
throw new IllegalArgumentException |
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(form.format(source) + ResourcesMgr.getString |
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372 |
("Principal.Name.must.be.surrounded.by.quotes")); |
2 | 373 |
} |
374 |
||
375 |
if (!principalName.endsWith("\"")) { |
|
376 |
||
377 |
// we have a name with spaces in it -- |
|
378 |
// keep parsing until we find the end quote, |
|
379 |
// and keep the spaces in the name |
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380 |
||
381 |
while (tokenizer.hasMoreTokens()) { |
|
382 |
principalName = principalName + tokenizer.nextToken(); |
|
383 |
if (principalName.endsWith("\"")) |
|
384 |
break; |
|
385 |
} |
|
386 |
||
387 |
if (!principalName.endsWith("\"")) { |
|
388 |
MessageFormat form = new MessageFormat |
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389 |
(ResourcesMgr.getString |
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390 |
("permission.name.name.syntax.invalid.")); |
2 | 391 |
Object[] source = {name}; |
392 |
throw new IllegalArgumentException |
|
393 |
(form.format(source) + ResourcesMgr.getString |
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394 |
("Principal.Name.missing.end.quote")); |
2 | 395 |
} |
396 |
} |
|
397 |
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398 |
if (testing) |
|
399 |
System.out.println("\tprincipalName = '" + principalName + "'"); |
|
400 |
||
401 |
principalName = principalName.substring |
|
402 |
(1, principalName.length() - 1); |
|
403 |
||
404 |
if (principalClass.equals("*") && |
|
405 |
!principalName.equals("*")) { |
|
406 |
throw new IllegalArgumentException(ResourcesMgr.getString |
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407 |
("PrivateCredentialPermission.Principal.Class.can.not.be.a.wildcard.value.if.Principal.Name.is.not.a.wildcard.value")); |
2 | 408 |
} |
409 |
||
410 |
if (testing) |
|
411 |
System.out.println("\tprincipalName = '" + principalName + "'"); |
|
412 |
||
413 |
pList.add(new CredOwner(principalClass, principalName)); |
|
414 |
} |
|
415 |
||
416 |
this.credOwners = new CredOwner[pList.size()]; |
|
417 |
pList.toArray(this.credOwners); |
|
418 |
} |
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419 |
||
420 |
private boolean impliesCredentialClass(String thisC, String thatC) { |
|
421 |
||
422 |
// this should never happen |
|
423 |
if (thisC == null || thatC == null) |
|
424 |
return false; |
|
425 |
||
426 |
if (testing) |
|
427 |
System.out.println("credential class comparison: " + |
|
428 |
thisC + "/" + thatC); |
|
429 |
||
430 |
if (thisC.equals("*")) |
|
431 |
return true; |
|
432 |
||
433 |
/** |
|
434 |
* XXX let's not enable this for now -- |
|
435 |
* if people want it, we'll enable it later |
|
436 |
*/ |
|
437 |
/* |
|
438 |
if (thisC.endsWith("*")) { |
|
439 |
String cClass = thisC.substring(0, thisC.length() - 2); |
|
440 |
return thatC.startsWith(cClass); |
|
441 |
} |
|
442 |
*/ |
|
443 |
||
444 |
return thisC.equals(thatC); |
|
445 |
} |
|
446 |
||
447 |
private boolean impliesPrincipalSet(CredOwner[] thisP, CredOwner[] thatP) { |
|
448 |
||
449 |
// this should never happen |
|
450 |
if (thisP == null || thatP == null) |
|
451 |
return false; |
|
452 |
||
453 |
if (thatP.length == 0) |
|
454 |
return true; |
|
455 |
||
456 |
if (thisP.length == 0) |
|
457 |
return false; |
|
458 |
||
459 |
for (int i = 0; i < thisP.length; i++) { |
|
460 |
boolean foundMatch = false; |
|
461 |
for (int j = 0; j < thatP.length; j++) { |
|
462 |
if (thisP[i].implies(thatP[j])) { |
|
463 |
foundMatch = true; |
|
464 |
break; |
|
465 |
} |
|
466 |
} |
|
467 |
if (!foundMatch) { |
|
468 |
return false; |
|
469 |
} |
|
470 |
} |
|
471 |
return true; |
|
472 |
} |
|
473 |
||
474 |
/** |
|
475 |
* Reads this object from a stream (i.e., deserializes it) |
|
476 |
*/ |
|
477 |
private void readObject(java.io.ObjectInputStream s) throws |
|
478 |
java.io.IOException, |
|
479 |
ClassNotFoundException { |
|
480 |
||
481 |
s.defaultReadObject(); |
|
482 |
||
483 |
// perform new initialization from the permission name |
|
484 |
||
24685
215fa91e1b4c
8044461: Cleanup new Boolean and single character strings
rriggs
parents:
21955
diff
changeset
|
485 |
if (getName().indexOf(' ') == -1 && getName().indexOf('"') == -1) { |
2 | 486 |
|
487 |
// name only has a credential class specified |
|
488 |
credentialClass = getName(); |
|
489 |
credOwners = EMPTY_PRINCIPALS; |
|
490 |
||
491 |
} else { |
|
492 |
||
493 |
// perform regular initialization |
|
494 |
init(getName()); |
|
495 |
} |
|
496 |
} |
|
497 |
||
498 |
/** |
|
499 |
* @serial include |
|
500 |
*/ |
|
501 |
static class CredOwner implements java.io.Serializable { |
|
502 |
||
503 |
private static final long serialVersionUID = -5607449830436408266L; |
|
504 |
||
505 |
/** |
|
506 |
* @serial |
|
507 |
*/ |
|
508 |
String principalClass; |
|
509 |
/** |
|
510 |
* @serial |
|
511 |
*/ |
|
512 |
String principalName; |
|
513 |
||
514 |
CredOwner(String principalClass, String principalName) { |
|
515 |
this.principalClass = principalClass; |
|
516 |
this.principalName = principalName; |
|
517 |
} |
|
518 |
||
519 |
public boolean implies(Object obj) { |
|
520 |
if (obj == null || !(obj instanceof CredOwner)) |
|
521 |
return false; |
|
522 |
||
523 |
CredOwner that = (CredOwner)obj; |
|
524 |
||
525 |
if (principalClass.equals("*") || |
|
526 |
principalClass.equals(that.principalClass)) { |
|
527 |
||
528 |
if (principalName.equals("*") || |
|
529 |
principalName.equals(that.principalName)) { |
|
530 |
return true; |
|
531 |
} |
|
532 |
} |
|
533 |
||
534 |
/** |
|
535 |
* XXX no code yet to support a.b.* |
|
536 |
*/ |
|
537 |
||
538 |
return false; |
|
539 |
} |
|
540 |
||
541 |
public String toString() { |
|
542 |
MessageFormat form = new MessageFormat(ResourcesMgr.getString |
|
7179
4afb81e50183
6987827: security/util/Resources.java needs improvement
weijun
parents:
5506
diff
changeset
|
543 |
("CredOwner.Principal.Class.class.Principal.Name.name")); |
2 | 544 |
Object[] source = {principalClass, principalName}; |
545 |
return (form.format(source)); |
|
546 |
} |
|
547 |
} |
|
548 |
} |