taxeditor-store/src/main/java/eu/etaxonomy/taxeditor/store/LoginManager.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.store;
  12
  13 import java.util.Observable;
  14
  15 import org.springframework.security.authentication.BadCredentialsException;
  16 import org.springframework.security.authentication.LockedException;
  17 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  18 import org.springframework.security.core.Authentication;
  19 import org.springframework.security.core.context.SecurityContextHolder;
  20
  21 import eu.etaxonomy.cdm.model.common.User;
  22
  23 /**
  24  * <p>LoginManager class.</p>
  25  *
  26  * @author n.hoffmann
  27  * @created 03.07.2009
  28  * @version 1.0
  29  */
  30 public class LoginManager extends Observable{
  31
  32         /**
  33          * <p>authenticate</p>
  34          *
  35          * @param token a {@link org.springframework.security.authentication.UsernamePasswordAuthenticationToken} object.
  36          */
  37         public void authenticate(String username, String password){
  38                 try{
  39                         UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);
  40
  41                         SecurityContextHolder.clearContext();
  42                         Authentication authentication = CdmStore.getAuthenticationManager().authenticate(token);
  43                         SecurityContextHolder.getContext().setAuthentication(authentication);
  44                 }
  45                 catch(BadCredentialsException e){
  46                         StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Bad Credentials.");
  47                 }
  48                 catch(LockedException e){
  49                         StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Account is locked.");
  50                 }
  51                 catch(IllegalArgumentException e){
  52                         StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Username and/or Password empty.");
  53                 }
  54                 finally{
  55                         this.setChanged();
  56                         this.notifyObservers();
  57                 }
  58         }
  59
  60         /**
  61          * <p>getAuthenticatedUser</p>
  62          *
  63          * @return a {@link eu.etaxonomy.cdm.model.common.User} object.
  64          */
  65         public User getAuthenticatedUser(){
  66                 Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
  67
  68                 if(authentication != null
  69                                 && authentication.getPrincipal() != null
  70                                 && authentication.getPrincipal() instanceof User){
  71                         return (User)authentication.getPrincipal();
  72                 }
  73                 return null;
  74         }
  75
  76         public void logoutAll(){
  77                 SecurityContextHolder.clearContext();
  78                 notifyObservers();
  79         }
  80 }