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/* * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.security.sasl; import javax.security.auth.callback.Callback; /**  * This callback is used by <tt>SaslServer</tt> to determine whether  * one entity (identified by an authenticated authentication id)  * can act on  * behalf of another entity (identified by an authorization id).  *  * @since 1.5  *  * @author Rosanna Lee  * @author Rob Weltman  */public class AuthorizeCallback implements Callback, java.io.Serializable {    /**     * The (authenticated) authentication id to check.     * @serial     */    private String authenticationID;     /**     * The authorization id to check.     * @serial     */    private String authorizationID;     /**     * The id of the authorized entity. If null, the id of     * the authorized entity is authorizationID.     * @serial     */    private String authorizedID;     /**     * A flag indicating whether the authentication id is allowed to     * act on behalf of the authorization id.     * @serial     */    private boolean authorized;     /**     * Constructs an instance of <tt>AuthorizeCallback</tt>.     *     * @param authnID   The (authenticated) authentication id.     * @param authzID   The authorization id.     */    public AuthorizeCallback(String authnID, String authzID) {        authenticationID = authnID;        authorizationID = authzID;    }     /**     * Returns the authentication id to check.     * @return The authentication id to check.     */    public String getAuthenticationID() {        return authenticationID;    }     /**     * Returns the authorization id to check.     * @return The authentication id to check.     */    public String getAuthorizationID() {        return authorizationID;    }     /**     * Determines whether the authentication id is allowed to     * act on behalf of the authorization id.     *     * @return <tt>true</tt> if authorization is allowed; <tt>false</tt> otherwise     * @see #setAuthorized(boolean)     * @see #getAuthorizedID()     */    public boolean isAuthorized() {        return authorized;    }     /**     * Sets whether the authorization is allowed.     * @param ok <tt>true</tt> if authorization is allowed; <tt>false</tt> otherwise     * @see #isAuthorized     * @see #setAuthorizedID(java.lang.String)     */    public void setAuthorized(boolean ok) {        authorized = ok;    }     /**     * Returns the id of the authorized user.     * @return The id of the authorized user. <tt>null</tt> means the     * authorization failed.     * @see #setAuthorized(boolean)     * @see #setAuthorizedID(java.lang.String)     */    public String getAuthorizedID() {        if (!authorized) {            return null;        }        return (authorizedID == null) ? authorizationID : authorizedID;    }     /**     * Sets the id of the authorized entity. Called by handler only when the id     * is different from getAuthorizationID(). For example, the id     * might need to be canonicalized for the environment in which it     * will be used.     * @param id The id of the authorized user.     * @see #setAuthorized(boolean)     * @see #getAuthorizedID     */    public void setAuthorizedID(String id) {        authorizedID = id;    }     private static final long serialVersionUID = -2353344186490470805L;}