/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
* or http://forgerock.org/license/CDDLv1.0.html.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at legal-notices/CDDLv1_0.txt.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
* Portions Copyright 2014 ForgeRock AS
*/
package org.opends.server.api;
import org.forgerock.i18n.LocalizableMessage;
import java.util.List;
import java.util.Set;
import org.opends.server.admin.std.server.PasswordValidatorCfg;
import org.forgerock.opendj.config.server.ConfigException;
import org.opends.server.types.*;
import org.forgerock.opendj.ldap.ByteString;
import org.forgerock.i18n.LocalizableMessageBuilder;
/**
* This class defines the set of methods and structures that must be
* implemented by a Directory Server module that may be used to
* determine whether a proposed password is acceptable for a user.
*
* @param <T> The type of configuration handled by this password
* validator.
*/
@org.opends.server.types.PublicAPI(
stability=org.opends.server.types.StabilityLevel.UNCOMMITTED,
mayInstantiate=false,
mayExtend=true,
mayInvoke=false)
public abstract class PasswordValidator
<T extends PasswordValidatorCfg>
{
/**
* Initializes this password validator based on the information in
* the provided configuration entry.
*
* @param configuration The configuration to use to initialize
* this password validator.
*
* @throws ConfigException If an unrecoverable problem arises in
* the process of performing the
* initialization.
*
* @throws InitializationException If a problem occurs during
* initialization that is not
* related to the server
* configuration.
*/
public abstract void initializePasswordValidator(T configuration)
throws ConfigException, InitializationException;
/**
* Indicates whether the provided configuration is acceptable for
* this password validator. It should be possible to call this
* method on an uninitialized password validator instance in order
* to determine whether the password validator would be able to use
* the provided configuration.
* <BR><BR>
* Note that implementations which use a subclass of the provided
* configuration class will likely need to cast the configuration
* to the appropriate subclass type.
*
* @param configuration The password validator configuration
* for which to make the determination.
* @param unacceptableReasons A list that may be used to hold the
* reasons that the provided
* configuration is not acceptable.
*
* @return {@code true} if the provided configuration is acceptable
* for this password validator, or {@code false} if not.
*/
public boolean isConfigurationAcceptable(
PasswordValidatorCfg configuration,
List<LocalizableMessage> unacceptableReasons)
{
// This default implementation does not perform any special
// validation. It should be overridden by password validator
// implementations that wish to perform more detailed validation.
return true;
}
/**
* Performs any finalization that might be required when this
* password validator is unloaded. No action is taken in the
* default implementation.
*/
public void finalizePasswordValidator()
{
// No action is required by default.
}
/**
* Indicates whether the provided password is acceptable for use by
* the specified user. If the password is determined to be
* unacceptable, then a human-readable explanation should be
* appended to the provided buffer.
*
* @param newPassword The proposed clear-text password that
* should be validated.
* @param currentPasswords The set of clear-text current passwords
* for the user (if available). Note that
* the current passwords may not always be
* available, and this may not comprise
* entire set of passwords currently
* for the user.
* @param operation The operation that is being used to set
* the password. It may be an add, a
* modify, or a password modify operation.
* @param userEntry The entry for the user whose password
* is being changed.
* @param invalidReason The buffer to which the human-readable
* explanation should be appended if it is
* determined that the password is not
* acceptable.
*
* @return {@code true} if the password is acceptable, or
* {@code false} if not.
*/
public abstract boolean passwordIsAcceptable(ByteString newPassword,
Set<ByteString> currentPasswords,
Operation operation,
Entry userEntry,
LocalizableMessageBuilder invalidReason);
}