/*
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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.schema;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.forgerock.opendj.ldap.Assertion;
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import org.forgerock.opendj.ldap.ByteSequence;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.ConditionResult;
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import org.forgerock.opendj.ldap.DecodeException;
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import org.forgerock.opendj.ldap.schema.MatchingRuleImpl;
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import org.forgerock.opendj.ldap.schema.Schema;
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import org.forgerock.opendj.ldap.spi.IndexQueryFactory;
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import org.forgerock.opendj.ldap.spi.Indexer;
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import org.forgerock.opendj.ldap.spi.IndexingOptions;
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import org.opends.server.api.PasswordStorageScheme;
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import static org.forgerock.opendj.ldap.Assertion.*;
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import static org.opends.server.core.DirectoryServer.*;
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/**
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* This class implements the authPasswordMatch matching rule defined in RFC
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* 3112.
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*/
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class AuthPasswordEqualityMatchingRule implements MatchingRuleImpl
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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private static final String EQUALITY_ID = "equality";
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private final Collection<? extends Indexer> indexers = Collections.singleton(new Indexer()
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{
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@Override
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public void createKeys(Schema schema, ByteSequence value, IndexingOptions options, Collection<ByteString> keys)
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throws DecodeException
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{
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keys.add(normalizeAttributeValue(schema, value));
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}
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@Override
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public String getIndexID()
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{
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return EQUALITY_ID;
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}
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});
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/** {@inheritDoc} */
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@Override
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public Comparator<ByteSequence> comparator(Schema schema)
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{
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return ByteSequence.COMPARATOR;
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}
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/**
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* Retrieves the normalized form of the provided value, which is best suited
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* for efficiently performing matching operations on that value.
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*
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* @param schema The schema.
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* @param value The value to be normalized.
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*
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* @return The normalized version of the provided value.
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*
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* @throws DecodeException If the provided value is invalid according to
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* the associated attribute syntax.
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*/
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@Override
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public ByteString normalizeAttributeValue(Schema schema, ByteSequence value) throws DecodeException
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{
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// We will not alter the value in any way.
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return value.toByteString();
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}
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/** {@inheritDoc} */
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@Override
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public Assertion getAssertion(final Schema schema, final ByteSequence assertionValue) throws DecodeException
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{
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return new Assertion()
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{
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final ByteString normalizedAssertionValue = normalizeAttributeValue(schema, assertionValue);
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@Override
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public ConditionResult matches(final ByteSequence normalizedAttributeValue)
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{
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return valuesMatch(normalizedAttributeValue, normalizedAssertionValue);
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}
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@Override
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public <T> T createIndexQuery(IndexQueryFactory<T> factory) throws DecodeException
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{
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return factory.createExactMatchQuery(EQUALITY_ID, normalizedAssertionValue);
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}
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};
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}
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/** {@inheritDoc} */
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@Override
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public Assertion getSubstringAssertion(Schema schema, ByteSequence subInitial,
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List<? extends ByteSequence> subAnyElements, ByteSequence subFinal) throws DecodeException
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{
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return UNDEFINED_ASSERTION;
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}
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/** {@inheritDoc} */
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@Override
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public Assertion getGreaterOrEqualAssertion(Schema schema, ByteSequence value) throws DecodeException
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{
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return UNDEFINED_ASSERTION;
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}
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/** {@inheritDoc} */
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@Override
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public Assertion getLessOrEqualAssertion(Schema schema, ByteSequence value) throws DecodeException
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{
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return UNDEFINED_ASSERTION;
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}
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/** {@inheritDoc} */
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@Override
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public Collection<? extends Indexer> getIndexers()
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{
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return indexers;
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}
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/** {@inheritDoc} */
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@Override
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public boolean isIndexingSupported()
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{
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return indexers.isEmpty();
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}
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private ConditionResult valuesMatch(ByteSequence attributeValue, ByteSequence assertionValue)
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{
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// We must be able to decode the attribute value using the authentication
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// password syntax.
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StringBuilder[] authPWComponents;
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try
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{
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authPWComponents = AuthPasswordSyntax.decodeAuthPassword(attributeValue.toString());
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}
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catch (Exception e)
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{
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logger.traceException(e);
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return ConditionResult.FALSE;
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}
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// The first element of the array will be the scheme. Make sure that we
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// support the requested scheme.
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PasswordStorageScheme<?> storageScheme = getAuthPasswordStorageScheme(authPWComponents[0].toString());
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if (storageScheme == null)
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{
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// It's not a scheme that we can support.
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return ConditionResult.FALSE;
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}
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// We support the scheme, so make the determination.
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return ConditionResult.valueOf(
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storageScheme.authPasswordMatches(assertionValue,
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authPWComponents[1].toString(),
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authPWComponents[2].toString()));
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}
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}
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