/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2014-2016 ForgeRock AS.
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*/
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package org.opends.server.api;
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import org.forgerock.i18n.LocalizableMessage;
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import java.util.List;
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import org.forgerock.opendj.server.config.server.PasswordGeneratorCfg;
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import org.forgerock.opendj.config.server.ConfigException;
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import org.opends.server.types.*;
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import org.forgerock.opendj.ldap.ByteString;
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/**
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* This class defines a set of methods and structures that must be
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* implemented by a Directory Server module that may be used to
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* generate user passwords. The password generator is included as part
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* of a password policy, and is used by the password modify extended
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* operation to construct a new password for the user if that option
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* is chosen.
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*
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* @param <T> The type of configuration handled by this password
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* generator.
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*/
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@org.opends.server.types.PublicAPI(
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stability=org.opends.server.types.StabilityLevel.UNCOMMITTED,
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mayInstantiate=false,
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mayExtend=true,
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mayInvoke=false)
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public abstract class PasswordGenerator
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<T extends PasswordGeneratorCfg>
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{
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/**
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* Initializes this password generator based on the information in
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* the provided configuration entry.
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*
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* @param configuration The configuration to use to initialize
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* this password validator.
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*
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* @throws ConfigException If an unrecoverable problem arises in
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* the process of performing the
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* initialization.
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*
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* @throws InitializationException If a problem occurs during
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* initialization that is not
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* related to the server
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* configuration.
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*/
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public abstract void initializePasswordGenerator(T configuration)
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throws ConfigException, InitializationException;
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/**
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* Indicates whether the provided configuration is acceptable for
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* this password generator. It should be possible to call this
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* method on an uninitialized password generator instance in order
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* to determine whether the password generator would be able to use
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* the provided configuration.
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* <BR><BR>
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* Note that implementations which use a subclass of the provided
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* configuration class will likely need to cast the configuration
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* to the appropriate subclass type.
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*
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* @param configuration The password generator configuration
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* for which to make the determination.
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* @param unacceptableReasons A list that may be used to hold the
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* reasons that the provided
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* configuration is not acceptable.
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*
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* @return {@code true} if the provided configuration is acceptable
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* for this password generator, or {@code false} if not.
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*/
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public boolean isConfigurationAcceptable(
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PasswordGeneratorCfg configuration,
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List<LocalizableMessage> unacceptableReasons)
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{
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// This default implementation does not perform any special
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// validation. It should be overridden by password generator
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// implementations that wish to perform more detailed validation.
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return true;
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}
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/**
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* Performs any finalization work that may be necessary when this
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* password generator is taken out of service.
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*/
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public void finalizePasswordGenerator()
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{
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// No action is performed by default.
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}
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/**
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* Generates a password for the user whose account is contained in
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* the specified entry.
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*
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* @param userEntry The entry for the user for whom the password
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* is to be generated.
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*
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* @return The password that has been generated for the user.
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*
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* @throws DirectoryException If a problem occurs while attempting
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* to generate the password.
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*/
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public abstract ByteString generatePassword(Entry userEntry)
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throws DirectoryException;
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}
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