Java tutorial
/* * Copyright 2001-2009 The Apache Software Foundation. * * Licensed 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.juddi.v3.auth; import java.util.Hashtable; import javax.naming.Context; import javax.naming.NamingException; import javax.naming.ldap.InitialLdapContext; import javax.naming.ldap.LdapContext; import javax.persistence.EntityManager; import javax.persistence.EntityTransaction; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.juddi.config.AppConfig; import org.apache.juddi.config.PersistenceManager; import org.apache.juddi.config.Property; import org.apache.juddi.model.Publisher; import org.apache.juddi.model.UddiEntityPublisher; import org.apache.juddi.v3.error.AuthenticationException; import org.apache.juddi.v3.error.ErrorMessage; import org.apache.juddi.v3.error.FatalErrorException; import org.apache.juddi.v3.error.UnknownUserException; import org.apache.commons.configuration.ConfigurationException; /** * This is a implementation of jUDDI's Authenticator interface, that uses the * LDAP. z * * Usage: * * To use this class you must add the following properties to the * juddiv3.properties file: * * # The LDAP Authenticator * juddi.authenticator=org.apache.juddi.v3.auth.LdapSimpleAuthenticator * * # LDAP authentication URL * juddi.authenticator.url=ldap://localhost:389 * * This authenticator assumes that the publisher username is the same as the LDAP * principal name, which may not be the case as the LDAP principal might be a bind name. * This class could easily be extended so that the uid of the LDAP authenticated user is * used, or to authenticate by group.<br><br> * * This class was tested with OpenLDAP.<br> * <br> See properties: * {@link org.apache.juddi.config.Property#JUDDI_AUTHENTICATOR_INITIAL_CONTEXT JUDDI_AUTHENTICATOR_INITIAL_CONTEXT} * {@link org.apache.juddi.config.Property#JUDDI_AUTHENTICATOR_STYLE JUDDI_AUTHENTICATOR_STYLE} * * @author <a href="mailto:tcunning@apache.org">Tom Cunningham</a> * @author <a href="mailto:gunnlaugursig@gmail.com">Gunnlaugur Sigursson</a> * @author <a href="mailto:alexoree@apache.org">Alex O'Ree</a> * * @since 3.2, all values are now configurable * @see Property * */ public class LdapSimpleAuthenticator implements Authenticator { private Log logger = LogFactory.getLog(this.getClass()); private LdapContext ctx = null; //this needs to be a Hashtable, HashMap won't work here private Hashtable<String, String> env = null; private String url = null; private static final String DEFAULT_URL = "ldap://localhost:389"; public LdapSimpleAuthenticator() throws NamingException, ConfigurationException { String authURL = null; try { authURL = AppConfig.getConfiguration().getString(Property.JUDDI_AUTHENTICATOR_URL, DEFAULT_URL); } catch (ConfigurationException ce) { logger.error("Configuration exception occurred retrieving: " + Property.JUDDI_AUTHENTICATOR_URL); throw new NamingException( Property.JUDDI_AUTHENTICATOR_URL + " missing from config or config is not available."); } init(authURL); } public LdapSimpleAuthenticator(String url) throws NamingException, ConfigurationException { init(url); } public void init(String url) throws NamingException, ConfigurationException { env = new Hashtable<String, String>(); env.put(Context.INITIAL_CONTEXT_FACTORY, AppConfig.getConfiguration() .getString(Property.JUDDI_AUTHENTICATOR_INITIAL_CONTEXT, "com.sun.jndi.ldap.LdapCtxFactory")); env.put(Context.SECURITY_AUTHENTICATION, AppConfig.getConfiguration().getString(Property.JUDDI_AUTHENTICATOR_STYLE, "simple")); env.put(Context.PROVIDER_URL, url); // organization ldap url, example ldap://localhost:389 this.url = url; try { ctx = new InitialLdapContext(env, null); } catch (NamingException e) { logger.error("Naming exception " + e); throw e; } } public String authenticate(String authorizedName, String cred) throws AuthenticationException, FatalErrorException { if (authorizedName == null || "".equals(authorizedName)) { throw new UnknownUserException(new ErrorMessage("errors.auth.NoPublisher", authorizedName)); } int MaxBindingsPerService = -1; int MaxServicesPerBusiness = -1; int MaxTmodels = -1; int MaxBusinesses = -1; try { MaxBindingsPerService = AppConfig.getConfiguration().getInt(Property.JUDDI_MAX_BINDINGS_PER_SERVICE, -1); MaxServicesPerBusiness = AppConfig.getConfiguration().getInt(Property.JUDDI_MAX_SERVICES_PER_BUSINESS, -1); MaxTmodels = AppConfig.getConfiguration().getInt(Property.JUDDI_MAX_TMODELS_PER_PUBLISHER, -1); MaxBusinesses = AppConfig.getConfiguration().getInt(Property.JUDDI_MAX_BUSINESSES_PER_PUBLISHER, -1); } catch (Exception ex) { MaxBindingsPerService = -1; MaxServicesPerBusiness = -1; MaxTmodels = -1; MaxBusinesses = -1; logger.error("config exception! " + authorizedName, ex); } boolean isLdapUser = false; try { env = new Hashtable<String, String>(); env.put(Context.INITIAL_CONTEXT_FACTORY, AppConfig.getConfiguration() .getString(Property.JUDDI_AUTHENTICATOR_INITIAL_CONTEXT, "com.sun.jndi.ldap.LdapCtxFactory")); env.put(Context.SECURITY_AUTHENTICATION, AppConfig.getConfiguration().getString(Property.JUDDI_AUTHENTICATOR_STYLE, "simple")); env.put(Context.PROVIDER_URL, url); // organization ldap url, example ldap://localhost:389 env.put(Context.SECURITY_PRINCIPAL, authorizedName); env.put(Context.SECURITY_CREDENTIALS, cred); ctx = new InitialLdapContext(env, null); isLdapUser = true; logger.info(authorizedName + " is authenticated"); } catch (ConfigurationException e) { logger.error(authorizedName + " is not authenticated", e); throw new UnknownUserException(new ErrorMessage("errors.auth.NoPublisher", authorizedName)); } catch (NamingException e) { logger.error(authorizedName + " is not authenticated"); throw new UnknownUserException(new ErrorMessage("errors.auth.NoPublisher", authorizedName)); } finally { try { ctx.close(); } catch (NamingException e) { logger.error("Context close failure " + e); } } if (isLdapUser) { EntityManager em = PersistenceManager.getEntityManager(); EntityTransaction tx = em.getTransaction(); try { tx.begin(); Publisher publisher = em.find(Publisher.class, authorizedName); if (publisher == null) { logger.warn("Publisher was not found, adding the publisher in on the fly."); publisher = new Publisher(); publisher.setAuthorizedName(authorizedName); publisher.setIsAdmin("false"); publisher.setIsEnabled("true"); publisher.setMaxBindingsPerService(MaxBindingsPerService); publisher.setMaxBusinesses(MaxBusinesses); publisher.setMaxServicesPerBusiness(MaxServicesPerBusiness); publisher.setMaxTmodels(MaxTmodels); publisher.setPublisherName("Unknown"); em.persist(publisher); tx.commit(); } } finally { if (tx.isActive()) { tx.rollback(); } em.close(); } } else { throw new UnknownUserException(new ErrorMessage("errors.auth.NoPublisher", authorizedName)); } return authorizedName; } public UddiEntityPublisher identify(String authInfo, String authorizedName) throws AuthenticationException, FatalErrorException { EntityManager em = PersistenceManager.getEntityManager(); EntityTransaction tx = em.getTransaction(); try { tx.begin(); Publisher publisher = em.find(Publisher.class, authorizedName); if (publisher == null) throw new UnknownUserException(new ErrorMessage("errors.auth.NoPublisher", authorizedName)); return publisher; } finally { if (tx.isActive()) { tx.rollback(); } em.close(); } } }