/*
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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 2008-2010 Sun Microsystems, Inc.
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* Portions Copyright 2012-2016 ForgeRock AS.
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*/
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package org.opends.admin.ads.util;
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import java.io.IOException;
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import java.net.ConnectException;
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import java.net.URI;
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import java.util.HashSet;
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import java.util.Hashtable;
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import java.util.Set;
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import javax.naming.CommunicationException;
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import javax.naming.Context;
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import javax.naming.NamingEnumeration;
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import javax.naming.NamingException;
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import javax.naming.directory.Attribute;
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import javax.naming.directory.Attributes;
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import javax.naming.directory.SearchControls;
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import javax.naming.directory.SearchResult;
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import javax.naming.ldap.Control;
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import javax.naming.ldap.InitialLdapContext;
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import javax.naming.ldap.StartTlsRequest;
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import javax.naming.ldap.StartTlsResponse;
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import javax.net.ssl.HostnameVerifier;
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import javax.net.ssl.KeyManager;
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import javax.net.ssl.TrustManager;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.opends.server.replication.plugin.EntryHistorical;
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import org.opends.server.schema.SchemaConstants;
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import org.opends.server.types.HostPort;
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import com.forgerock.opendj.cli.Utils;
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/**
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* Class providing some utilities to create LDAP connections using JNDI and
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* to manage entries retrieved using JNDI.
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*
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*/
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public class ConnectionUtils
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{
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private static final String STARTTLS_PROPERTY =
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"org.opends.connectionutils.isstarttls";
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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/**
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* Private constructor: this class cannot be instantiated.
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*/
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private ConnectionUtils()
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{
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}
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/**
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* Creates a clear LDAP connection and returns the corresponding LdapContext.
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* This methods uses the specified parameters to create a JNDI environment
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* hashtable and creates an InitialLdapContext instance.
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*
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* @param ldapURL
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* the target LDAP URL
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* @param dn
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* passed as Context.SECURITY_PRINCIPAL if not null
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* @param pwd
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* passed as Context.SECURITY_CREDENTIALS if not null
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* @param timeout
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* passed as com.sun.jndi.ldap.connect.timeout if > 0
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* @param env
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* null or additional environment properties
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*
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* @throws NamingException
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* the exception thrown when instantiating InitialLdapContext
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*
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* @return the created InitialLdapContext.
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* @see javax.naming.Context
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* @see javax.naming.ldap.InitialLdapContext
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*/
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public static InitialLdapContext createLdapContext(String ldapURL, String dn,
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String pwd, int timeout, Hashtable<String, String> env)
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throws NamingException
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{
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env = copy(env);
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env.put(Context.INITIAL_CONTEXT_FACTORY,
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"com.sun.jndi.ldap.LdapCtxFactory");
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env.put("java.naming.ldap.attributes.binary",
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EntryHistorical.HISTORICAL_ATTRIBUTE_NAME);
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env.put(Context.PROVIDER_URL, ldapURL);
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if (timeout >= 1)
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{
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env.put("com.sun.jndi.ldap.connect.timeout", String.valueOf(timeout));
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}
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if (dn != null)
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{
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env.put(Context.SECURITY_PRINCIPAL, dn);
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}
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if (pwd != null)
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{
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env.put(Context.SECURITY_CREDENTIALS, pwd);
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}
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/* Contains the DirContext and the Exception if any */
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final Object[] pair = new Object[]
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{ null, null };
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final Hashtable<String, String> fEnv = env;
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Thread t = new Thread(new Runnable()
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{
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@Override
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public void run()
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{
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try
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{
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pair[0] = new InitialLdapContext(fEnv, null);
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} catch (NamingException ne)
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{
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pair[1] = ne;
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} catch (Throwable t)
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{
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t.printStackTrace();
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pair[1] = t;
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}
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}
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});
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t.setDaemon(true);
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return getInitialLdapContext(t, pair, timeout);
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}
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/**
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* Creates an LDAPS connection and returns the corresponding LdapContext.
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* This method uses the TrusteSocketFactory class so that the specified
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* trust manager gets called during the SSL handshake. If trust manager is
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* null, certificates are not verified during SSL handshake.
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*
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* @param ldapsURL the target *LDAPS* URL.
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* @param dn passed as Context.SECURITY_PRINCIPAL if not null.
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* @param pwd passed as Context.SECURITY_CREDENTIALS if not null.
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* @param timeout passed as com.sun.jndi.ldap.connect.timeout if > 0.
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* @param env null or additional environment properties.
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* @param trustManager null or the trust manager to be invoked during SSL
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* negotiation.
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* @param keyManager null or the key manager to be invoked during SSL
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* negotiation.
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* @return the established connection with the given parameters.
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*
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* @throws NamingException the exception thrown when instantiating
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* InitialLdapContext.
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*
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* @see javax.naming.Context
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* @see javax.naming.ldap.InitialLdapContext
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* @see TrustedSocketFactory
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*/
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public static InitialLdapContext createLdapsContext(String ldapsURL,
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String dn, String pwd, int timeout, Hashtable<String, String> env,
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TrustManager trustManager, KeyManager keyManager) throws NamingException {
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env = copy(env);
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env.put(Context.INITIAL_CONTEXT_FACTORY,
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"com.sun.jndi.ldap.LdapCtxFactory");
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env.put("java.naming.ldap.attributes.binary",
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EntryHistorical.HISTORICAL_ATTRIBUTE_NAME);
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env.put(Context.PROVIDER_URL, ldapsURL);
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env.put("java.naming.ldap.factory.socket",
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org.opends.admin.ads.util.TrustedSocketFactory.class.getName());
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if (dn != null)
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{
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env.put(Context.SECURITY_PRINCIPAL, dn);
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}
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if (pwd != null)
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{
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env.put(Context.SECURITY_CREDENTIALS, pwd);
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}
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if (trustManager == null)
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{
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trustManager = new BlindTrustManager();
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}
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/* Contains the DirContext and the Exception if any */
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final Object[] pair = new Object[] {null, null};
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final Hashtable<String, String> fEnv = env;
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final TrustManager fTrustManager = trustManager;
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final KeyManager fKeyManager = keyManager;
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Thread t = new Thread(new Runnable() {
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@Override
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public void run() {
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try {
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TrustedSocketFactory.setCurrentThreadTrustManager(fTrustManager,
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fKeyManager);
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pair[0] = new InitialLdapContext(fEnv, null);
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} catch (NamingException | RuntimeException ne) {
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pair[1] = ne;
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}
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}
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});
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t.setDaemon(true);
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return getInitialLdapContext(t, pair, timeout);
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}
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/**
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* Clones the provided InitialLdapContext and returns a connection using
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* the same parameters.
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* @param ctx the connection to be cloned.
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* @param timeout the timeout to establish the connection in milliseconds.
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* Use {@code 0} to express no timeout.
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* @param trustManager the trust manager to be used to connect.
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* @param keyManager the key manager to be used to connect.
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* @return the new InitialLdapContext connected to the server.
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* @throws NamingException if there was an error creating the new connection.
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*/
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public static InitialLdapContext cloneInitialLdapContext(
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final InitialLdapContext ctx, int timeout, TrustManager trustManager,
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KeyManager keyManager) throws NamingException
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{
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Hashtable<?, ?> env = ctx.getEnvironment();
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Control[] ctls = ctx.getConnectControls();
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Control[] newCtls = null;
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if (ctls != null)
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{
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newCtls = new Control[ctls.length];
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System.arraycopy(ctls, 0, newCtls, 0, ctls.length);
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}
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/* Contains the DirContext and the Exception if any */
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final Object[] pair = new Object[] {null, null};
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final Hashtable<?, ?> fEnv = env;
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final TrustManager fTrustManager = trustManager;
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final KeyManager fKeyManager = keyManager;
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final Control[] fNewCtls = newCtls;
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Thread t = new Thread(new Runnable() {
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@Override
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public void run() {
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try {
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if (isSSL(ctx) || isStartTLS(ctx))
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{
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TrustedSocketFactory.setCurrentThreadTrustManager(fTrustManager,
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fKeyManager);
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}
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pair[0] = new InitialLdapContext(fEnv, fNewCtls);
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} catch (NamingException | RuntimeException ne) {
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pair[1] = ne;
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}
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}
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});
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return getInitialLdapContext(t, pair, timeout);
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}
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/**
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* Creates an LDAP+StartTLS connection and returns the corresponding
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* LdapContext.
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* This method first creates an LdapContext with anonymous bind. Then it
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* requests a StartTlsRequest extended operation. The StartTlsResponse is
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* setup with the specified hostname verifier. Negotiation is done using a
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* TrustSocketFactory so that the specified TrustManager gets called during
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* the SSL handshake.
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* If trust manager is null, certificates are not checked during SSL
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* handshake.
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*
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* @param ldapURL the target *LDAP* URL.
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* @param dn passed as Context.SECURITY_PRINCIPAL if not null.
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* @param pwd passed as Context.SECURITY_CREDENTIALS if not null.
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* @param timeout passed as com.sun.jndi.ldap.connect.timeout if > 0.
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* @param env null or additional environment properties.
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* @param trustManager null or the trust manager to be invoked during SSL
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* negotiation.
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* @param keyManager null or the key manager to be invoked during SSL
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* negotiation.
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* @param verifier null or the hostname verifier to be setup in the
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* StartTlsResponse.
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* @return the established connection with the given parameters.
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*
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* @throws NamingException the exception thrown when instantiating
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* InitialLdapContext.
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*
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* @see javax.naming.Context
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* @see javax.naming.ldap.InitialLdapContext
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* @see javax.naming.ldap.StartTlsRequest
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* @see javax.naming.ldap.StartTlsResponse
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* @see TrustedSocketFactory
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*/
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public static InitialLdapContext createStartTLSContext(String ldapURL,
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String dn, String pwd, int timeout, Hashtable<String, String> env,
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TrustManager trustManager, KeyManager keyManager,
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HostnameVerifier verifier)
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throws NamingException
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{
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if (trustManager == null)
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{
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trustManager = new BlindTrustManager();
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}
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if (verifier == null) {
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verifier = new BlindHostnameVerifier();
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}
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env = copy(env);
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env.put(Context.INITIAL_CONTEXT_FACTORY,
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"com.sun.jndi.ldap.LdapCtxFactory");
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env.put("java.naming.ldap.attributes.binary",
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EntryHistorical.HISTORICAL_ATTRIBUTE_NAME);
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env.put(Context.PROVIDER_URL, ldapURL);
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env.put(Context.SECURITY_AUTHENTICATION , "none");
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/* Contains the DirContext and the Exception if any */
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final Object[] pair = new Object[] {null, null};
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final Hashtable<?, ?> fEnv = env;
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final String fDn = dn;
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final String fPwd = pwd;
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final TrustManager fTrustManager = trustManager;
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final KeyManager fKeyManager = keyManager;
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final HostnameVerifier fVerifier = verifier;
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Thread t = new Thread(new Runnable() {
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@Override
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public void run() {
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try {
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StartTlsResponse tls;
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InitialLdapContext result = new InitialLdapContext(fEnv, null);
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tls = (StartTlsResponse) result.extendedOperation(
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new StartTlsRequest());
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tls.setHostnameVerifier(fVerifier);
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try
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{
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tls.negotiate(new TrustedSocketFactory(fTrustManager,fKeyManager));
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}
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catch(IOException x) {
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NamingException xx;
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xx = new CommunicationException(
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"Failed to negotiate Start TLS operation");
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xx.initCause(x);
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result.close();
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throw xx;
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}
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result.addToEnvironment(STARTTLS_PROPERTY, "true");
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if (fDn != null)
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{
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result.addToEnvironment(Context.SECURITY_AUTHENTICATION , "simple");
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result.addToEnvironment(Context.SECURITY_PRINCIPAL, fDn);
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if (fPwd != null)
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{
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result.addToEnvironment(Context.SECURITY_CREDENTIALS, fPwd);
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}
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result.reconnect(null);
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}
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pair[0] = result;
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} catch (NamingException | RuntimeException ne)
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{
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pair[1] = ne;
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}
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}
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});
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t.setDaemon(true);
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return getInitialLdapContext(t, pair, timeout);
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}
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private static Hashtable<String, String> copy(Hashtable<String, String> env) {
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return env != null ? new Hashtable<>(env) : new Hashtable<String, String>();
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}
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/**
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* Returns the LDAP URL used in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return the LDAP URL used in the provided InitialLdapContext.
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*/
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public static String getLdapUrl(InitialLdapContext ctx)
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{
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return getEnvProperty(ctx, Context.PROVIDER_URL);
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}
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/**
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* Returns the host name used in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return the host name used in the provided InitialLdapContext.
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*/
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public static String getHostName(InitialLdapContext ctx)
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{
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HostPort hp = getHostPort(ctx);
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return hp != null ? hp.getHost() : null;
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}
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/**
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* Returns the port number used in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return the port number used in the provided InitialLdapContext.
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*/
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public static int getPort(InitialLdapContext ctx)
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{
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HostPort hp = getHostPort(ctx);
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return hp != null ? hp.getPort() : -1;
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}
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/**
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* Returns the host port representation of the server to which this
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* context is connected.
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* @param ctx the context to analyze.
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* @return the host port representation of the server to which this
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* context is connected.
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*/
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public static HostPort getHostPort(InitialLdapContext ctx)
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{
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try
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{
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URI ldapURL = new URI(getLdapUrl(ctx));
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return new HostPort(ldapURL.getHost(), ldapURL.getPort());
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}
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catch (Throwable t)
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{
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// This is really strange. Seems like a bug somewhere.
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logger.warn(LocalizableMessage.raw("Error getting host: "+t, t));
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return null;
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}
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}
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/**
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* Returns the bind DN used in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return the bind DN used in the provided InitialLdapContext.
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*/
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public static String getBindDN(InitialLdapContext ctx)
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{
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return getEnvProperty(ctx, Context.SECURITY_PRINCIPAL);
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}
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/**
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* Returns the password used in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return the password used in the provided InitialLdapContext.
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*/
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public static String getBindPassword(InitialLdapContext ctx)
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{
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return getEnvProperty(ctx, Context.SECURITY_CREDENTIALS);
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}
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private static String getEnvProperty(InitialLdapContext ctx, String property) {
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try {
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return (String) ctx.getEnvironment().get(property);
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} catch (NamingException ne) {
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// This is really strange. Seems like a bug somewhere.
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logger.warn(LocalizableMessage.raw("Naming exception getting environment of " + ctx, ne));
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return null;
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}
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}
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/**
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* Tells whether we are using SSL in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return <CODE>true</CODE> if we are using SSL and <CODE>false</CODE>
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* otherwise.
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*/
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public static boolean isSSL(InitialLdapContext ctx)
|
{
|
try
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{
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return getLdapUrl(ctx).toLowerCase().startsWith("ldaps");
|
}
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catch (Throwable t)
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{
|
// This is really strange. Seems like a bug somewhere.
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logger.warn(LocalizableMessage.raw("Error getting if is SSL "+t, t));
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return false;
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}
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}
|
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/**
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* Tells whether we are using StartTLS in the provided InitialLdapContext.
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* @param ctx the context to analyze.
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* @return <CODE>true</CODE> if we are using StartTLS and <CODE>false</CODE>
|
* otherwise.
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*/
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public static boolean isStartTLS(InitialLdapContext ctx)
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{
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return "true".equalsIgnoreCase(getEnvProperty(ctx, STARTTLS_PROPERTY));
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}
|
|
/**
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* Method used to know if we can connect as administrator in a server with a
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* given password and dn.
|
* @param ldapUrl the LDAP URL of the server.
|
* @param dn the dn to be used.
|
* @param pwd the password to be used.
|
* @param timeout the timeout to establish the connection in milliseconds.
|
* Use {@code 0} to express no timeout.
|
* @return <CODE>true</CODE> if we can connect and read the configuration and
|
* <CODE>false</CODE> otherwise.
|
*/
|
public static boolean canConnectAsAdministrativeUser(String ldapUrl,
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String dn, String pwd, int timeout)
|
{
|
try
|
{
|
InitialLdapContext ctx;
|
if (ldapUrl.toLowerCase().startsWith("ldap:"))
|
{
|
ctx = createLdapContext(ldapUrl, dn, pwd, timeout,
|
null);
|
}
|
else
|
{
|
ctx = createLdapsContext(ldapUrl, dn, pwd, timeout,
|
null, null, null);
|
}
|
|
return connectedAsAdministrativeUser(ctx);
|
} catch (NamingException ne)
|
{
|
// Nothing to do.
|
return false;
|
} catch (Throwable t)
|
{
|
throw new IllegalStateException("Unexpected throwable.", t);
|
}
|
}
|
|
/**
|
* Method used to know if we are connected as administrator in a server with a
|
* given InitialLdapContext.
|
* @param ctx the context.
|
* @return <CODE>true</CODE> if we are connected and read the configuration
|
* and <CODE>false</CODE> otherwise.
|
*/
|
public static boolean connectedAsAdministrativeUser(InitialLdapContext ctx)
|
{
|
try
|
{
|
// Search for the config to check that it is the directory manager.
|
SearchControls searchControls = new SearchControls();
|
searchControls.setSearchScope(
|
SearchControls. OBJECT_SCOPE);
|
searchControls.setReturningAttributes(
|
new String[] { SchemaConstants.NO_ATTRIBUTES });
|
NamingEnumeration<SearchResult> sr =
|
ctx.search("cn=config", "objectclass=*", searchControls);
|
try
|
{
|
while (sr.hasMore())
|
{
|
sr.next();
|
}
|
}
|
finally
|
{
|
try
|
{
|
sr.close();
|
}
|
catch(Exception ex)
|
{
|
logger.warn(LocalizableMessage.raw(
|
"Unexpected error closing enumeration on cn=Config entry", ex));
|
}
|
}
|
return true;
|
} catch (NamingException ne)
|
{
|
// Nothing to do.
|
return false;
|
} catch (Throwable t)
|
{
|
throw new IllegalStateException("Unexpected throwable.", t);
|
}
|
}
|
|
/**
|
* This is just a commodity method used to try to get an InitialLdapContext.
|
* @param t the Thread to be used to create the InitialLdapContext.
|
* @param pair an Object[] array that contains the InitialLdapContext and the
|
* Throwable if any occurred.
|
* @param timeout the timeout in milliseconds. If we do not get to create the
|
* connection before the timeout a CommunicationException will be thrown.
|
* @return the created InitialLdapContext
|
* @throws NamingException if something goes wrong during the creation.
|
*/
|
private static InitialLdapContext getInitialLdapContext(Thread t,
|
Object[] pair, int timeout) throws NamingException
|
{
|
try
|
{
|
if (timeout > 0)
|
{
|
t.start();
|
t.join(timeout);
|
} else
|
{
|
t.run();
|
}
|
|
} catch (InterruptedException x)
|
{
|
// This might happen for problems in sockets
|
// so it does not necessarily imply a bug
|
}
|
|
boolean throwException = false;
|
|
if (timeout > 0 && t.isAlive())
|
{
|
t.interrupt();
|
try
|
{
|
t.join(2000);
|
} catch (InterruptedException x)
|
{
|
// This might happen for problems in sockets
|
// so it does not necessarily imply a bug
|
}
|
throwException = true;
|
}
|
|
if (pair[0] == null && pair[1] == null)
|
{
|
throwException = true;
|
}
|
|
if (throwException)
|
{
|
NamingException xx = new CommunicationException("Connection timed out");
|
xx.initCause(new ConnectException("Connection timed out"));
|
throw xx;
|
}
|
|
if (pair[1] != null)
|
{
|
if (pair[1] instanceof NamingException)
|
{
|
throw (NamingException) pair[1];
|
|
} else if (pair[1] instanceof RuntimeException)
|
{
|
throw (RuntimeException) pair[1];
|
|
} else if (pair[1] instanceof Throwable)
|
{
|
throw new IllegalStateException("Unexpected throwable occurred",
|
(Throwable) pair[1]);
|
}
|
}
|
return (InitialLdapContext) pair[0];
|
}
|
|
/**
|
* Returns the LDAP URL for the provided parameters.
|
* @param hostPort the host name and LDAP port.
|
* @param useSSL whether to use SSL or not.
|
* @return the LDAP URL for the provided parameters.
|
*/
|
public static String getLDAPUrl(HostPort hostPort, boolean useSSL)
|
{
|
return getLDAPUrl(hostPort.getHost(), hostPort.getPort(), useSSL);
|
}
|
|
/**
|
* Returns the LDAP URL for the provided parameters.
|
* @param host the host name.
|
* @param port the LDAP port.
|
* @param useSSL whether to use SSL or not.
|
* @return the LDAP URL for the provided parameters.
|
*/
|
public static String getLDAPUrl(String host, int port, boolean useSSL)
|
{
|
host = Utils.getHostNameForLdapUrl(host);
|
return (useSSL ? "ldaps://" : "ldap://") + host + ":" + port;
|
}
|
|
/**
|
* Returns the String representation of the first value of an attribute in a
|
* LDAP entry.
|
* @param entry the entry.
|
* @param attrName the attribute name.
|
* @return the String representation of the first value of an attribute in a
|
* LDAP entry.
|
* @throws NamingException if there is an error processing the entry.
|
*/
|
public static String getFirstValue(SearchResult entry, String attrName)
|
throws NamingException
|
{
|
String v = null;
|
Attributes attrs = entry.getAttributes();
|
if (attrs != null)
|
{
|
Attribute attr = attrs.get(attrName);
|
if (attr != null && attr.size() > 0)
|
{
|
Object o = attr.get();
|
if (o instanceof String)
|
{
|
v = (String)o;
|
}
|
else
|
{
|
v = String.valueOf(o);
|
}
|
}
|
}
|
return v;
|
}
|
|
/**
|
* Returns a Set with the String representation of the values of an attribute
|
* in a LDAP entry. The returned Set will never be null.
|
* @param entry the entry.
|
* @param attrName the attribute name.
|
* @return a Set with the String representation of the values of an attribute
|
* in a LDAP entry.
|
* @throws NamingException if there is an error processing the entry.
|
*/
|
public static Set<String> getValues(SearchResult entry, String attrName)
|
throws NamingException
|
{
|
Set<String> values = new HashSet<>();
|
Attributes attrs = entry.getAttributes();
|
if (attrs != null)
|
{
|
Attribute attr = attrs.get(attrName);
|
if (attr != null)
|
{
|
for (int i=0; i<attr.size(); i++)
|
{
|
values.add((String)attr.get(i));
|
}
|
}
|
}
|
return values;
|
}
|
}
|
