/*
    * $Id: LDAPSecurityModuleService.java 20 2004-07-28 12:07:45Z josem $
    *
    * JBoss Security Modules
    * Copyright (C) 2002 Talika Open Source Group
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   */
  
  package org.talika.jsm;
  
  import java.util.Hashtable;
  import java.util.Properties;
  import javax.naming.*;
  import javax.naming.directory.*;
  import javax.naming.spi.*;
  import javax.management.*;
  
  import org.jboss.util.ServiceMBeanSupport;
  
  /***
   *
   * @author  Jose M. Palomar <josem@talika.org>
   * @version $Revision: 20 $
   */
  public class LDAPSecurityModuleService extends ServiceMBeanSupport implements LDAPSecurityModuleServiceMBean, ObjectFactory
  {
      
      public LDAPSecurityModuleService() {
      }
  
      public LDAPSecurityModuleService(String name, String url, String bindDN, String passwd, String searchBase) {
          _name = name;
          _url = url;
          _bindDN = bindDN;
          _passwd = passwd;
          _searchBase = searchBase;
      }
      
      public String getName()
      {
          return "LDAP Security Module";
      }
      
      protected ObjectName getObjectName(MBeanServer server, ObjectName name)
      throws javax.management.MalformedObjectNameException
      {
          this.server = server;
          return new ObjectName(OBJECT_NAME);
      }
      
      protected void initService()
      throws Exception
      {
      }
      
      protected void startService()
      throws Exception
      {
          
          // Check required attributes
          if(_name == null || _url == null || _searchBase == null) {
              
              if(_name == null) log.log("InstanceName attribute not set");
              if(_url == null) log.log("Url attribute not set");
              if(_searchBase == null) log.log("SearchBase attribute not set");
              
              log.log("LDAP Security Module not started");
              
              return;
              
          }
          
          // Get LDAP context
          Properties p = new Properties();
          p.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
          p.setProperty(Context.PROVIDER_URL, _url);
          if(_bindDN != null) p.setProperty(Context.SECURITY_PRINCIPAL, _bindDN);
          if(_passwd != null) p.setProperty(Context.SECURITY_CREDENTIALS, _passwd);        
          DirContext dirCtx = new InitialDirContext(p);
          
          // Create a SecurityManager        
          LDAPSecurityModule ldapsm = new LDAPSecurityModule(dirCtx, _searchBase);
          
          // Bind reference to SM in JNDI
          Reference ref = new Reference(ldapsm.getClass().toString(), getClass().getName(), null);
         Context ctx = (Context) new InitialContext();        
         jndiName = JNDI_NAME_PREFIX + "/" + _name;
         try {                                               
             ctx.bind(jndiName, ref);                                    
         }
         catch(NameNotFoundException nabe) {
             ctx.createSubcontext(JNDI_NAME_PREFIX);
             ctx.bind(jndiName, ref);
         }                
         
         // Store it in global Hashtable
         ldapsmTable.put(_name, ldapsm);
         
         log.log("LDAP Security Module " + _name + " bound to " + jndiName);
         log.log("Url:        " + _url);
         log.log("Searh Base: " + _searchBase);
         if(_bindDN != null) log.log("BindDN:     " + _bindDN);
         if(_passwd != null) log.log("Password:   " + _passwd);
         
     }    
     
     protected void stopService()
     {
         try
         {
             new InitialContext().unbind(jndiName);
             ldapsmTable.remove(_name);
         }
         catch (CommunicationException e) {
         }
         catch (Exception e)
         {
             log.exception(e);
         }
     }
     
     protected void destroyService()
     {
     }     
     
     public Object getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable environment)
     throws Exception
     {
         return ldapsmTable.get(name.get(name.size()-1));
     }
     
     public void setInstanceName(String name) {
         _name = name;
     }
 
     public String getInstanceName() {
         return _name;
     }
     
     public void setUrl(String url) {
         _url = url;
     }
     
     public String getUrl() {
         return _url;
     }
     
     public void setBindDN(String bindDN) {
         _bindDN = bindDN;
     }
     
     public String getBindDN() {
         return _bindDN;
     }
     
     public void setPassword(String password) {
         _passwd = password;
     }
     
     public String getPassword() {
         return _passwd;
     }
     
     public void setSearchBase(String searchBase) {
         _searchBase = searchBase;
     }
     
     public String getSearchBase() {
         return _searchBase;
     }
     
     // Atributes
     private MBeanServer server = null;        
     private String _name = null;
     private String _url = null;
     private String _bindDN = null;
     private String _passwd = null;
     private String _searchBase = null;
     private String jndiName = null;
     
     private static Hashtable ldapsmTable = new Hashtable();
     
     // Constants
     public static String JNDI_NAME_PREFIX = "java:/security";
     
 }