/*
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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 2012-2013 ForgeRock AS.
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*/
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package org.forgerock.opendj.rest2ldap;
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import static org.forgerock.opendj.rest2ldap.Utils.attributeToJson;
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import static org.forgerock.opendj.rest2ldap.Utils.getAttributeName;
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import static org.forgerock.opendj.rest2ldap.Utils.jsonToAttribute;
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import static org.forgerock.opendj.rest2ldap.Utils.toFilter;
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import static org.forgerock.opendj.rest2ldap.Utils.toLowerCase;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import org.forgerock.json.fluent.JsonPointer;
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import org.forgerock.json.fluent.JsonValue;
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import org.forgerock.json.resource.BadRequestException;
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import org.forgerock.json.resource.ResultHandler;
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import org.forgerock.opendj.ldap.Attribute;
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import org.forgerock.opendj.ldap.AttributeDescription;
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import org.forgerock.opendj.ldap.Entry;
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import org.forgerock.opendj.ldap.Filter;
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/**
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* An attribute mapper that directly maps a configurable selection of attributes
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* to and from LDAP without any transformation.
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*/
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final class DefaultAttributeMapper extends AttributeMapper {
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// All user attributes by default.
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private final Map<String, String> excludedAttributes = new LinkedHashMap<String, String>();
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private final Map<String, String> includedAttributes = new LinkedHashMap<String, String>();
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/**
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* Creates a new default attribute mapper which will map all user attributes
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* to JSON by default.
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*/
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DefaultAttributeMapper() {
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// No implementation required.
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}
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/**
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* Excludes one or more LDAP attributes from this mapping.
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*
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* @param attributes
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* The attributes to be excluded.
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* @return This attribute mapper.
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*/
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DefaultAttributeMapper excludeAttribute(final String... attributes) {
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for (final String attribute : attributes) {
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excludedAttributes.put(toLowerCase(attribute), attribute);
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}
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return this;
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}
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@Override
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void getLDAPAttributes(final Context c, final JsonPointer jsonAttribute,
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final Set<String> ldapAttributes) {
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switch (jsonAttribute.size()) {
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case 0:
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// Requested everything.
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if (!includedAttributes.isEmpty()) {
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ldapAttributes.addAll(includedAttributes.values());
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} else {
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// All user attributes.
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ldapAttributes.add("*");
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}
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break;
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default:
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final String name = jsonAttribute.get(0);
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if (isIncludedAttribute(name)) {
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ldapAttributes.add(name);
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}
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break;
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}
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}
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@Override
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void getLDAPFilter(final Context c, final FilterType type, final JsonPointer jsonAttribute,
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final String operator, final Object valueAssertion, final ResultHandler<Filter> h) {
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if (jsonAttribute.size() == 1 && isIncludedAttribute(jsonAttribute.get(0))) {
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h.handleResult(toFilter(c, type, jsonAttribute.get(0), valueAssertion));
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} else {
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// This attribute mapper cannot handle the provided filter component.
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h.handleResult(null);
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}
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}
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/**
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* Includes one or more LDAP attributes in this mapping.
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*
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* @param attributes
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* The attributes to be included.
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* @return This attribute mapper.
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*/
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DefaultAttributeMapper includeAttribute(final String... attributes) {
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for (final String attribute : attributes) {
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includedAttributes.put(toLowerCase(attribute), attribute);
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}
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return this;
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}
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@Override
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void toJSON(final Context c, final Entry e, final ResultHandler<Map<String, Object>> h) {
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// FIXME: this will leave out attributes which were not included in the LDAP entry. We should
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// ensure that JSON attributes are present, even if they are null or an empty array.
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final Map<String, Object> result = new LinkedHashMap<String, Object>(e.getAttributeCount());
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for (final Attribute a : e.getAllAttributes()) {
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final String name = getAttributeName(a);
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if (isIncludedAttribute(name)) {
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result.put(name, attributeToJson(a));
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}
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}
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h.handleResult(result);
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}
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@Override
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void toLDAP(final Context c, final JsonValue v, final ResultHandler<List<Attribute>> h) {
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if (v.isMap()) {
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final List<Attribute> result = new ArrayList<Attribute>(v.size());
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for (final Map.Entry<String, Object> field : v.asMap().entrySet()) {
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if (!isIncludedAttribute(field.getKey())) {
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continue;
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}
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try {
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final AttributeDescription ad =
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AttributeDescription.valueOf(field.getKey(), c.getConfig().schema());
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result.add(jsonToAttribute(field.getValue(), ad));
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} catch (final Exception e) {
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// FIXME: improve error message.
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h.handleError(new BadRequestException("The field " + field.getKey()
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+ " is invalid"));
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return;
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}
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}
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h.handleResult(result);
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} else {
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h.handleResult(Collections.<Attribute> emptyList());
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}
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}
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private boolean isIncludedAttribute(final String name) {
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final String lowerName = toLowerCase(name);
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// Ignore the requested attribute if it has been excluded.
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if (excludedAttributes.containsKey(lowerName)) {
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return false;
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}
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// Include all attributes by default.
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if (includedAttributes.isEmpty() || includedAttributes.containsKey(lowerName)) {
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return true;
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}
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return false;
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}
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}
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