/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2014 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 java.util.Set;
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import org.opends.server.admin.std.server.PasswordValidatorCfg;
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import org.opends.server.config.ConfigException;
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import org.opends.server.types.*;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.i18n.LocalizableMessageBuilder;
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/**
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* This class defines the 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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* determine whether a proposed password is acceptable for a user.
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*
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* @param <T> The type of configuration handled by this password
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* validator.
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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 PasswordValidator
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<T extends PasswordValidatorCfg>
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{
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/**
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* Initializes this password validator 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 initializePasswordValidator(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 validator. It should be possible to call this
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* method on an uninitialized password validator instance in order
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* to determine whether the password validator 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 validator 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 validator, or {@code false} if not.
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*/
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public boolean isConfigurationAcceptable(
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PasswordValidatorCfg 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 validator
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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 that might be required when this
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* password validator is unloaded. No action is taken in the
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* default implementation.
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*/
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public void finalizePasswordValidator()
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{
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// No action is required by default.
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}
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/**
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* Indicates whether the provided password is acceptable for use by
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* the specified user. If the password is determined to be
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* unacceptable, then a human-readable explanation should be
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* appended to the provided buffer.
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*
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* @param newPassword The proposed clear-text password that
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* should be validated.
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* @param currentPasswords The set of clear-text current passwords
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* for the user (if available). Note that
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* the current passwords may not always be
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* available, and this may not comprise
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* entire set of passwords currently
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* for the user.
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* @param operation The operation that is being used to set
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* the password. It may be an add, a
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* modify, or a password modify operation.
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* @param userEntry The entry for the user whose password
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* is being changed.
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* @param invalidReason The buffer to which the human-readable
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* explanation should be appended if it is
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* determined that the password is not
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* acceptable.
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*
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* @return {@code true} if the password is acceptable, or
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* {@code false} if not.
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*/
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public abstract boolean passwordIsAcceptable(ByteString newPassword,
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Set<ByteString> currentPasswords,
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Operation operation,
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Entry userEntry,
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LocalizableMessageBuilder invalidReason);
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}
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