/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying 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 2008 Sun Microsystems, Inc.
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*/
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package org.opends.admin.ads.util;
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import java.util.LinkedHashSet;
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import java.util.Map;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import javax.naming.AuthenticationException;
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import javax.naming.NamingException;
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import javax.naming.NoPermissionException;
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import javax.naming.TimeLimitExceededException;
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import javax.naming.ldap.InitialLdapContext;
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import javax.naming.ldap.LdapName;
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import org.opends.admin.ads.ADSContext;
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import org.opends.admin.ads.ServerDescriptor;
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import org.opends.admin.ads.TopologyCacheException;
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import org.opends.admin.ads.TopologyCacheFilter;
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import org.opends.admin.ads.ADSContext.ServerProperty;
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/**
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* Class used to load the configuration of a server. Basically the code
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* uses some provided properties and authentication information to connect
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* to the server and then generate a ServerDescriptor object based on the
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* read configuration.
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*/
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public class ServerLoader extends Thread
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{
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private Map<ServerProperty,Object> serverProperties;
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private boolean isOver;
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private boolean isInterrupted;
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private String lastLdapUrl;
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private TopologyCacheException lastException;
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private ServerDescriptor serverDescriptor;
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private ApplicationTrustManager trustManager;
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private String dn;
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private String pwd;
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private LinkedHashSet<PreferredConnection> preferredLDAPURLs;
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private TopologyCacheFilter filter;
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private static final Logger LOG =
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Logger.getLogger(ServerLoader.class.getName());
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/**
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* Constructor.
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* @param serverProperties the server properties of the server we want to
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* load.
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* @param dn the DN that we must use to bind to the server.
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* @param pwd the password that we must use to bind to the server.
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* @param trustManager the ApplicationTrustManager to be used when we try
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* to connect to the server.
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* @param preferredLDAPURLs the list of preferred LDAP URLs that we want
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* to use to connect to the server. They will be used only if they correspond
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* to the URLs that we found in the the server properties.
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* @param filter the topology cache filter to be used. This can be used not
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* to retrieve all the information.
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*/
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public ServerLoader(Map<ServerProperty,Object> serverProperties,
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String dn, String pwd, ApplicationTrustManager trustManager,
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LinkedHashSet<PreferredConnection> preferredLDAPURLs,
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TopologyCacheFilter filter)
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{
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this.serverProperties = serverProperties;
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this.dn = dn;
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this.pwd = pwd;
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this.trustManager = trustManager;
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this.preferredLDAPURLs =
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new LinkedHashSet<PreferredConnection>(preferredLDAPURLs);
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this.filter = filter;
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}
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/**
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* Returns the ServerDescriptor that could be retrieved.
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* @return the ServerDescriptor that could be retrieved.
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*/
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public ServerDescriptor getServerDescriptor()
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{
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if (serverDescriptor == null)
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{
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serverDescriptor = ServerDescriptor.createStandalone(serverProperties);
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}
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serverDescriptor.setLastException(lastException);
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return serverDescriptor;
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}
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/**
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* Returns the last exception that occurred while trying to generate
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* the ServerDescriptor object.
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* @return the last exception that occurred while trying to generate
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* the ServerDescriptor object.
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*/
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public TopologyCacheException getLastException()
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{
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return lastException;
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}
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/**
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* {@inheritDoc}
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*/
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public void interrupt()
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{
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if (!isOver)
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{
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isInterrupted = true;
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String ldapUrl = getLastLdapUrl();
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if (ldapUrl == null)
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{
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LinkedHashSet<PreferredConnection> urls = getLDAPURLsByPreference();
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if (!urls.isEmpty())
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{
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ldapUrl = urls.iterator().next().getLDAPURL();
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}
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}
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lastException = new TopologyCacheException(
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TopologyCacheException.Type.TIMEOUT,
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new TimeLimitExceededException("Timeout reading server: "+ldapUrl),
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trustManager, ldapUrl);
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LOG.log(Level.WARNING, "Timeout reading server: "+ldapUrl);
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}
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super.interrupt();
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}
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/**
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* The method where we try to generate the ServerDescriptor object.
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*/
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public void run()
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{
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lastException = null;
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InitialLdapContext ctx = null;
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try
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{
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ctx = createContext();
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serverDescriptor = ServerDescriptor.createStandalone(ctx, filter);
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serverDescriptor.setAdsProperties(serverProperties);
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}
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catch (NoPermissionException npe)
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{
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LOG.log(Level.WARNING,
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"Permissions error reading server: "+getLastLdapUrl(), npe);
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if (!isAdministratorDn())
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{
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lastException = new TopologyCacheException(
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TopologyCacheException.Type.NOT_GLOBAL_ADMINISTRATOR, npe,
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trustManager, getLastLdapUrl());
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}
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else
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{
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lastException =
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new TopologyCacheException(
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TopologyCacheException.Type.NO_PERMISSIONS, npe,
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trustManager, getLastLdapUrl());
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}
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}
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catch (AuthenticationException ae)
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{
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LOG.log(Level.WARNING,
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"Authentication exception: "+getLastLdapUrl(), ae);
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if (!isAdministratorDn())
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{
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lastException = new TopologyCacheException(
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TopologyCacheException.Type.NOT_GLOBAL_ADMINISTRATOR, ae,
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trustManager, getLastLdapUrl());
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}
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else
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{
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lastException =
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new TopologyCacheException(
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TopologyCacheException.Type.GENERIC_READING_SERVER, ae,
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trustManager, getLastLdapUrl());
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}
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}
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catch (NamingException ne)
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{
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LOG.log(Level.WARNING,
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"NamingException error reading server: "+getLastLdapUrl(), ne);
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if (ctx == null)
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{
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lastException =
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new TopologyCacheException(
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TopologyCacheException.Type.GENERIC_CREATING_CONNECTION, ne,
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trustManager, getLastLdapUrl());
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}
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else
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{
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lastException =
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new TopologyCacheException(
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TopologyCacheException.Type.GENERIC_READING_SERVER, ne,
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trustManager, getLastLdapUrl());
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}
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}
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catch (Throwable t)
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{
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if (!isInterrupted)
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{
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LOG.log(Level.WARNING,
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"Generic error reading server: "+getLastLdapUrl(), t);
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LOG.log(Level.WARNING, "server Properties: "+serverProperties);
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lastException =
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new TopologyCacheException(TopologyCacheException.Type.BUG, t);
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}
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}
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finally
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{
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isOver = true;
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try
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{
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if (ctx != null)
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{
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ctx.close();
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}
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}
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catch (Throwable t)
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{
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}
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}
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}
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/**
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* Create an InitialLdapContext based in the provide server properties and
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* authentication data provided in the constructor.
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* @return an InitialLdapContext based in the provide server properties and
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* authentication data provided in the constructor.
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* @throws NamingException if an error occurred while creating the
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* InitialLdapContext.
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*/
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public InitialLdapContext createContext() throws NamingException
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{
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InitialLdapContext ctx = null;
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if (trustManager != null)
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{
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trustManager.resetLastRefusedItems();
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String host = (String)serverProperties.get(ServerProperty.HOST_NAME);
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trustManager.setHost(host);
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}
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/* Try to connect to the server in a certain order of preference. If an
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* URL fails, we will try with the others.
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*/
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LinkedHashSet<PreferredConnection> conns = getLDAPURLsByPreference();
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for (PreferredConnection connection : conns)
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{
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if (ctx == null)
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{
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lastLdapUrl = connection.getLDAPURL();
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switch (connection.getType())
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{
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case LDAPS:
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ctx = ConnectionUtils.createLdapsContext(lastLdapUrl, dn, pwd,
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ConnectionUtils.getDefaultLDAPTimeout(), null, trustManager,
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null);
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break;
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case START_TLS:
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ctx = ConnectionUtils.createStartTLSContext(lastLdapUrl, dn, pwd,
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ConnectionUtils.getDefaultLDAPTimeout(), null, trustManager,
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null, null);
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break;
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default:
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ctx = ConnectionUtils.createLdapContext(lastLdapUrl, dn, pwd,
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ConnectionUtils.getDefaultLDAPTimeout(), null);
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}
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}
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}
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return ctx;
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}
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/**
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* Returns the last LDAP URL to which we tried to connect.
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* @return the last LDAP URL to which we tried to connect.
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*/
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private String getLastLdapUrl()
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{
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return lastLdapUrl;
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}
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/**
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* Returns the non-secure LDAP URL for the given server properties. It
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* returns NULL if according to the server properties no non-secure LDAP URL
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* can be generated (LDAP disabled or port not defined).
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* @param serverProperties the server properties to be used to generate
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* the non-secure LDAP URL.
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* @return the non-secure LDAP URL for the given server properties.
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*/
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private String getLdapUrl(Map<ServerProperty,Object> serverProperties)
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{
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String ldapUrl = null;
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Object v = serverProperties.get(ServerProperty.LDAP_ENABLED);
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boolean ldapEnabled = (v != null) && "true".equalsIgnoreCase(v.toString());
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if (ldapEnabled)
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{
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ldapUrl = "ldap://"+getHostNameForLdapUrl(serverProperties)+":"+
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serverProperties.get(ServerProperty.LDAP_PORT);
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}
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return ldapUrl;
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}
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/**
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* Returns the StartTLS LDAP URL for the given server properties. It
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* returns NULL if according to the server properties no StartTLS LDAP URL
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* can be generated (StartTLS disabled or port not defined).
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* @param serverProperties the server properties to be used to generate
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* the StartTLS LDAP URL.
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* @return the StartTLS LDAP URL for the given server properties.
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*/
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private String getStartTlsLdapUrl(Map<ServerProperty,Object> serverProperties)
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{
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String ldapUrl = null;
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Object v = serverProperties.get(ServerProperty.LDAP_ENABLED);
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boolean ldapEnabled = (v != null) && "true".equalsIgnoreCase(v.toString());
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v = serverProperties.get(ServerProperty.STARTTLS_ENABLED);
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boolean startTLSEnabled = (v != null) &&
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"true".equalsIgnoreCase(v.toString());
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if (ldapEnabled && startTLSEnabled)
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{
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ldapUrl = "ldap://"+getHostNameForLdapUrl(serverProperties)+":"+
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serverProperties.get(ServerProperty.LDAP_PORT);
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}
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return ldapUrl;
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}
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/**
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* Returns the LDAPs URL for the given server properties. It
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* returns NULL if according to the server properties no LDAPS URL
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* can be generated (LDAPS disabled or port not defined).
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* @param serverProperties the server properties to be used to generate
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* the LDAPS URL.
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* @return the LDAPS URL for the given server properties.
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*/
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private String getLdapsUrl(Map<ServerProperty,Object> serverProperties)
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{
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String ldapsUrl = null;
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Object v = serverProperties.get(ServerProperty.LDAPS_ENABLED);
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boolean ldapsEnabled = (v != null) && "true".equalsIgnoreCase(v.toString());
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if (ldapsEnabled)
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{
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ldapsUrl = "ldaps://"+getHostNameForLdapUrl(serverProperties)+":"+
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serverProperties.get(ServerProperty.LDAPS_PORT);
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}
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return ldapsUrl;
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}
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/**
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* Returns the administration connector URL for the given server properties.
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* It returns NULL if according to the server properties no administration
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* connector URL can be generated.
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* @param serverProperties the server properties to be used to generate
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* the administration connector URL.
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* @return the administration connector URL for the given server properties.
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*/
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private String getAdminConnectorUrl(
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Map<ServerProperty,Object> serverProperties)
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{
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String adminUrl = null;
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boolean portDefined;
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Object v = serverProperties.get(ServerProperty.ADMIN_ENABLED);
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if ((v != null) && "true".equalsIgnoreCase(String.valueOf(v)))
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{
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v = serverProperties.get(ServerProperty.ADMIN_PORT);
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portDefined = v != null;
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}
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else
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{
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portDefined = false;
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}
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if (portDefined)
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{
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adminUrl = "ldaps://"+getHostNameForLdapUrl(serverProperties)+":"+
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serverProperties.get(ServerProperty.ADMIN_PORT);
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}
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return adminUrl;
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}
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/**
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* Returns the host name to be used to generate an LDAP URL based on the
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* contents of the provided server properties.
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* @param serverProperties the server properties.
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* @return the host name to be used to generate an LDAP URL based on the
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* contents of the provided server properties.
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*/
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private String getHostNameForLdapUrl(
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Map<ServerProperty,Object> serverProperties)
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{
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String host = (String)serverProperties.get(ServerProperty.HOST_NAME);
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return ConnectionUtils.getHostNameForLdapUrl(host);
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}
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/**
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* Returns whether the DN provided in the constructor is a Global
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* Administrator DN or not.
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* @return <CODE>true</CODE> if the DN provided in the constructor is a Global
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* Administrator DN and <CODE>false</CODE> otherwise.
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*/
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private boolean isAdministratorDn()
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{
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boolean isAdministratorDn = false;
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try
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{
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LdapName theDn = new LdapName(dn);
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LdapName containerDn =
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new LdapName(ADSContext.getAdministratorContainerDN());
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isAdministratorDn = theDn.startsWith(containerDn);
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}
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catch (Throwable t)
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{
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LOG.log(Level.WARNING, "Error parsing authentication DNs.", t);
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}
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return isAdministratorDn;
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}
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/**
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* Returns the list of LDAP URLs that can be used to connect to the server.
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* They are ordered so that the first URL is the preferred URL to be used.
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* @return the list of LDAP URLs that can be used to connect to the server.
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* They are ordered so that the first URL is the preferred URL to be used.
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*/
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private LinkedHashSet<PreferredConnection> getLDAPURLsByPreference()
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{
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LinkedHashSet<PreferredConnection> ldapUrls =
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new LinkedHashSet<PreferredConnection>();
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String adminConnectorUrl = getAdminConnectorUrl(serverProperties);
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String ldapsUrl = getLdapsUrl(serverProperties);
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String startTLSUrl = getStartTlsLdapUrl(serverProperties);
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String ldapUrl = getLdapUrl(serverProperties);
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/**
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* Check the preferred connections passed in the constructor.
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*/
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for (PreferredConnection connection : preferredLDAPURLs)
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{
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String url = connection.getLDAPURL();
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if (url.equalsIgnoreCase(adminConnectorUrl))
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{
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ldapUrls.add(connection);
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}
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else if (url.equalsIgnoreCase(ldapsUrl) &&
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connection.getType() == PreferredConnection.Type.LDAPS)
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{
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ldapUrls.add(connection);
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}
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else if (url.equalsIgnoreCase(startTLSUrl) &&
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connection.getType() == PreferredConnection.Type.START_TLS)
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{
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ldapUrls.add(connection);
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}
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else if (url.equalsIgnoreCase(ldapUrl) &&
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connection.getType() == PreferredConnection.Type.LDAP)
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{
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ldapUrls.add(connection);
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}
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}
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if (adminConnectorUrl != null)
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{
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ldapUrls.add(
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new PreferredConnection(adminConnectorUrl,
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PreferredConnection.Type.LDAPS));
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}
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if (ldapsUrl != null)
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{
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ldapUrls.add(
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new PreferredConnection(ldapsUrl, PreferredConnection.Type.LDAPS));
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}
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if (startTLSUrl != null)
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{
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ldapUrls.add(new PreferredConnection(startTLSUrl,
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PreferredConnection.Type.START_TLS));
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}
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if (ldapUrl != null)
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{
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ldapUrls.add(new PreferredConnection(ldapUrl,
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PreferredConnection.Type.LDAP));
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}
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return ldapUrls;
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}
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}
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