eu.etaxonomy.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 import java.util.Set;
  15
  16 import org.apache.log4j.Logger;
  17 import org.eclipse.core.runtime.IProgressMonitor;
  18 import org.eclipse.ui.IMemento;
  19 import org.springframework.security.authentication.BadCredentialsException;
  20 import org.springframework.security.authentication.LockedException;
  21 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  22 import org.springframework.security.core.Authentication;
  23 import org.springframework.security.core.GrantedAuthority;
  24 import org.springframework.security.core.context.SecurityContextHolder;
  25
  26 import eu.etaxonomy.cdm.api.application.CdmApplicationState;
  27 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  28 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  29 import eu.etaxonomy.cdm.model.common.Group;
  30 import eu.etaxonomy.cdm.model.common.User;
  31 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  32 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  33 import eu.etaxonomy.taxeditor.model.IContextListener;
  34 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  35
  36 /**
  37  * <p>LoginManager class.</p>
  38  *
  39  * @author n.hoffmann
  40  * @created 03.07.2009
  41  * @version 1.0
  42  */
  43 public class LoginManager extends Observable implements IConversationEnabled, IContextListener{
  44
  45         public static final Logger logger = Logger.getLogger(LoginManager.class);
  46
  47         private ConversationHolder conversation;
  48
  49         public LoginManager(){
  50                 CdmStore.getContextManager().addContextListener(this);
  51         }
  52
  53         /**
  54          * <p>authenticate</p>
  55          *
  56          * @param token a {@link org.springframework.security.authentication.UsernamePasswordAuthenticationToken} object.
  57          * @return true if the login attempt was successful even if the authentication has changed or not
  58          */
  59         public boolean authenticate(String username, String password){
  60
  61             // close all open editors
  62             if(!AbstractUtility.closeAll()){
  63                 return false;
  64             }
  65
  66
  67             try{
  68                 doAuthenticate(username, password);
  69             } catch (CdmAuthenticationException e) {
  70                 MessagingUtils.warningDialog("Could not authenticate", this, e.getMessage());
  71         }
  72             return true;
  73         }
  74
  75         public void doAuthenticate(String username, String password) throws CdmAuthenticationException {
  76             try {
  77                 SecurityContextHolder.clearContext();
  78                 Authentication lastAuthentication = CdmStore.getCurrentAuthentiation();
  79
  80                 UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);
  81                 Authentication authentication = CdmStore.getAuthenticationManager().authenticate(token);
  82
  83                 User user = (User) authentication.getPrincipal();
  84                 /* circumventing problem with hibernate not refreshing the transient collection authorities in this case,
  85                  * see http://dev.e-taxonomy.eu/trac/ticket/4053 */
  86                 user.initAuthorities();
  87
  88                 if(logger.isDebugEnabled()){
  89                     StringBuilder gaText = new StringBuilder();
  90                     String indent = "    ";
  91                     Set<GrantedAuthority> gaSet = user.getGrantedAuthorities();
  92                     _logGrantedAuthotities(gaText, indent, gaSet);
  93                     for(Group gr : user.getGroups()){
  94                         gaText.append(indent).append("gr[").append(gr.hashCode()).append("] \"").append(gr.getName()).append("\" ").append(gr.toString()).append("\n");
  95                         _logGrantedAuthotities(gaText, indent + indent, gr.getGrantedAuthorities());
  96                     }
  97                     logger.debug("User authenticated: " + user.getUsername() + "\n" + gaText.toString());
  98                 }
  99
 100                 authentication = new UsernamePasswordAuthenticationToken(user,password, authentication.getAuthorities());
 101                 SecurityContextHolder.getContext().setAuthentication(authentication);
 102                 CdmApplicationState.setCurrentSecurityContext(SecurityContextHolder.getContext());
 103
 104                 if(!authentication.equals(lastAuthentication)){
 105                     this.setChanged();
 106                     this.notifyObservers();
 107                 }
 108             } catch(BadCredentialsException e){
 109                 throw new CdmAuthenticationException("Login and/or Password incorrect", e);
 110             } catch(LockedException e){
 111                 throw new CdmAuthenticationException("Account is locked", e);
 112             } catch(IllegalArgumentException e){
 113                 throw new CdmAuthenticationException("Login and/or Password empty", e);
 114             }
 115
 116         }
 117
 118         private void _logGrantedAuthotities(StringBuilder gaText, String indent,
 119                         Set<GrantedAuthority> gaSet) {
 120                 for(GrantedAuthority ga : gaSet){
 121                         gaText.append(indent).append("ga[").append(ga.hashCode()).append("] ").append(ga.toString()).append("\n");
 122                 }
 123         }
 124
 125         /**
 126          * <p>getAuthenticatedUser</p>
 127          *
 128          * @return a {@link eu.etaxonomy.cdm.model.common.User} object.
 129          */
 130         public User getAuthenticatedUser(){
 131                 Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
 132
 133                 if(authentication != null
 134                                 && authentication.getPrincipal() != null
 135                                 && authentication.getPrincipal() instanceof User){
 136                         return (User)authentication.getPrincipal();
 137                 }
 138                 return null;
 139         }
 140
 141         public void logoutAll(){
 142                 SecurityContextHolder.clearContext();
 143                 notifyObservers();
 144         }
 145
 146         /* (non-Javadoc)
 147          * @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)
 148          */
 149         @Override
 150         public void update(CdmDataChangeMap arg) {}
 151
 152         /* (non-Javadoc)
 153          * @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()
 154          */
 155         @Override
 156         public ConversationHolder getConversationHolder() {
 157                 if(conversation == null){
 158                         conversation = CdmStore.createConversation();
 159                 }
 160                 return conversation;
 161         }
 162
 163         /**
 164          * Whether the current user has the role admin
 165          *
 166          * @return
 167          */
 168         public boolean isAdmin() {
 169                 // FIXME until we have rights implemented properly we do this
 170                 // by a simple string check. This has to change
 171
 172                 return "admin".equals(getAuthenticatedUser().getUsername());
 173         }
 174
 175         @Override
 176         public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
 177
 178         }
 179
 180         @Override
 181         public void contextStop(IMemento memento, IProgressMonitor monitor) {
 182
 183         }
 184
 185         @Override
 186         public void contextStart(IMemento memento, IProgressMonitor monitor){
 187                 conversation = CdmStore.createConversation();
 188         }
 189
 190         @Override
 191         public void contextRefresh(IProgressMonitor monitor) {
 192                 conversation = CdmStore.createConversation();
 193         }
 194
 195         @Override
 196         public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
 197
 198         }
 199 }