| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.shared.ldap.model.schema.normalizers; |
| |
| |
| import java.io.UnsupportedEncodingException; |
| |
| import org.apache.directory.shared.i18n.I18n; |
| import org.apache.directory.shared.ldap.model.entry.BinaryValue; |
| import org.apache.directory.shared.ldap.model.exception.LdapException; |
| import org.apache.directory.shared.ldap.model.name.NameComponentNormalizer; |
| import org.apache.directory.shared.ldap.model.schema.MutableAttributeTypeImpl; |
| import org.apache.directory.shared.ldap.model.schema.MatchingRule; |
| import org.apache.directory.shared.ldap.model.schema.Normalizer; |
| import org.apache.directory.shared.ldap.model.schema.SchemaManager; |
| import org.apache.directory.shared.util.Hex; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A Dn Name component Normalizer which uses the bootstrap registries to find |
| * the appropriate normalizer for the attribute of the name component with which |
| * to normalize the name component value. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class ConcreteNameComponentNormalizer implements NameComponentNormalizer |
| { |
| /** The LoggerFactory used by this Interceptor */ |
| private static final Logger LOG = LoggerFactory.getLogger( ConcreteNameComponentNormalizer.class ); |
| |
| /** the schemaManager used to dynamically resolve Normalizers */ |
| private final SchemaManager schemaManager; |
| |
| |
| /** |
| * Creates a Dn Name component Normalizer which uses the bootstrap |
| * registries to find the appropriate normalizer for the attribute of the |
| * name component with which to normalize the name component value. |
| * |
| * @param schemaManager the schemaManager used to dynamically resolve Normalizers |
| */ |
| public ConcreteNameComponentNormalizer( SchemaManager schemaManager ) |
| { |
| this.schemaManager = schemaManager; |
| } |
| |
| |
| private String unescape( String value ) |
| { |
| char[] newVal = new char[value.length()]; |
| int escaped = 0; |
| char high = 0; |
| char low = 0; |
| int pos = 0; |
| |
| for ( char c:value.toCharArray() ) |
| { |
| switch ( escaped ) |
| { |
| case 0 : |
| if ( c == '\\' ) |
| { |
| escaped = 1; |
| } |
| else |
| { |
| newVal[pos++] = c; |
| } |
| |
| break; |
| |
| case 1 : |
| escaped++; |
| high = c; |
| break; |
| |
| case 2 : |
| escaped=0; |
| low = c; |
| newVal[pos++] = (char) Hex.getHexValue(high, low); |
| |
| } |
| } |
| |
| return new String( newVal, 0, pos ); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object normalizeByName( String name, String value ) throws LdapException |
| { |
| MutableAttributeTypeImpl attributeType = schemaManager.lookupAttributeTypeRegistry( name ); |
| |
| if ( attributeType.getSyntax().isHumanReadable() ) |
| { |
| return lookup( name ).normalize( value ); |
| } |
| else |
| { |
| try |
| { |
| String unescaped = unescape( value ); |
| byte[] valBytes = unescaped.getBytes( "UTF-8" ); |
| |
| return lookup( name ).normalize( new BinaryValue( valBytes ) ); |
| } |
| catch ( UnsupportedEncodingException uee ) |
| { |
| String message = I18n.err( I18n.ERR_04222 ); |
| LOG.error( message ); |
| throw new LdapException( message ); |
| } |
| } |
| |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object normalizeByName( String name, byte[] value ) throws LdapException |
| { |
| MutableAttributeTypeImpl attributeType = schemaManager.lookupAttributeTypeRegistry( name ); |
| |
| if ( !attributeType.getSyntax().isHumanReadable() ) |
| { |
| return lookup( name ).normalize( new BinaryValue( value ) ); |
| } |
| else |
| { |
| try |
| { |
| String valStr = new String( value, "UTF-8" ); |
| return lookup( name ).normalize( valStr ); |
| } |
| catch ( UnsupportedEncodingException uee ) |
| { |
| String message = I18n.err( I18n.ERR_04223 ); |
| LOG.error( message ); |
| throw new LdapException( message ); |
| } |
| } |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object normalizeByOid( String oid, String value ) throws LdapException |
| { |
| return lookup( oid ).normalize( value ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object normalizeByOid( String oid, byte[] value ) throws LdapException |
| { |
| return lookup( oid ).normalize( new BinaryValue( value ) ); |
| } |
| |
| |
| /** |
| * Looks up the Normalizer to use for a name component using the attributeId |
| * for the name component. First the attribute is resolved, then its |
| * equality matching rule is looked up. The normalizer of that matching |
| * rule is returned. |
| * |
| * @param id the name or oid of the attribute in the name component to |
| * normalize the value of |
| * @return the Normalizer to use for normalizing the value of the attribute |
| * @throws LdapException if there are failures resolving the Normalizer |
| */ |
| private Normalizer lookup( String id ) throws LdapException |
| { |
| MutableAttributeTypeImpl type = schemaManager.lookupAttributeTypeRegistry( id ); |
| MatchingRule mrule = type.getEquality(); |
| |
| if ( mrule == null ) |
| { |
| return new NoOpNormalizer( id ); |
| } |
| |
| return mrule.getNormalizer(); |
| } |
| |
| |
| /** |
| * @see NameComponentNormalizer#isDefined(String) |
| */ |
| public boolean isDefined( String id ) |
| { |
| return schemaManager.getAttributeTypeRegistry().contains( id ); |
| } |
| |
| |
| public String normalizeName( String attributeName ) throws LdapException |
| { |
| return schemaManager.getAttributeTypeRegistry().getOidByName( attributeName ); |
| } |
| } |