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
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.ui.IEditorPart;
  17 import org.eclipse.ui.IMemento;
  18 import org.eclipse.ui.IWorkbenchPage;
  19 import org.eclipse.ui.IWorkbenchPart;
  20 import org.eclipse.ui.IWorkbenchWindow;
  21 import org.eclipse.ui.editors.text.EditorsUI;
  22 import org.eclipse.ui.handlers.HandlerUtil;
  23 import org.springframework.security.authentication.BadCredentialsException;
  24 import org.springframework.security.authentication.LockedException;
  25 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  26 import org.springframework.security.core.Authentication;
  27 import org.springframework.security.core.context.SecurityContextHolder;
  28
  29 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  30 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  31 import eu.etaxonomy.cdm.model.common.User;
  32 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  33 import eu.etaxonomy.taxeditor.model.IContextListener;
  34
  35 /**
  36  * <p>LoginManager class.</p>
  37  *
  38  * @author n.hoffmann
  39  * @created 03.07.2009
  40  * @version 1.0
  41  */
  42 public class LoginManager extends Observable implements IConversationEnabled, IContextListener{
  43
  44         private ConversationHolder conversation;
  45
  46         public LoginManager(){
  47                 CdmStore.getContextManager().addContextListener(this);
  48         }
  49
  50         /**
  51          * <p>authenticate</p>
  52          *
  53          * @param token a {@link org.springframework.security.authentication.UsernamePasswordAuthenticationToken} object.
  54          */
  55         public boolean authenticate(String username, String password){
  56
  57                 // close all open editors, this will close all open conversations
  58                 // otherwise the users granted authorities might not be up to date
  59                 if(!StoreUtil.closeAll()){
  60                         return false;
  61                 }
  62
  63
  64                 try{
  65                         getConversationHolder().bind();
  66
  67                         SecurityContextHolder.clearContext();
  68
  69                         UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);
  70                         Authentication authentication = CdmStore.getAuthenticationManager().authenticate(token);
  71
  72                         SecurityContextHolder.getContext().setAuthentication(authentication);
  73
  74                         this.setChanged();
  75                         this.notifyObservers();
  76                         return true;
  77                 }
  78                 catch(BadCredentialsException e){
  79                         StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Bad Credentials.");
  80                 }
  81                 catch(LockedException e){
  82                         StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Account is locked.");
  83                 }
  84                 catch(IllegalArgumentException e){
  85                         StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Username and/or Password empty.");
  86                 }
  87                 return false;
  88         }
  89
  90         /**
  91          * <p>getAuthenticatedUser</p>
  92          *
  93          * @return a {@link eu.etaxonomy.cdm.model.common.User} object.
  94          */
  95         public User getAuthenticatedUser(){
  96                 Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
  97
  98                 if(authentication != null
  99                                 && authentication.getPrincipal() != null
 100                                 && authentication.getPrincipal() instanceof User){
 101                         return (User)authentication.getPrincipal();
 102                 }
 103                 return null;
 104         }
 105
 106         public void logoutAll(){
 107                 SecurityContextHolder.clearContext();
 108                 notifyObservers();
 109         }
 110
 111         /* (non-Javadoc)
 112          * @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)
 113          */
 114         @Override
 115         public void update(CdmDataChangeMap arg) {}
 116
 117         /* (non-Javadoc)
 118          * @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()
 119          */
 120         @Override
 121         public ConversationHolder getConversationHolder() {
 122                 if(conversation == null){
 123                         conversation = CdmStore.createConversation();
 124                 }
 125                 return conversation;
 126         }
 127
 128         /**
 129          * Whether the current user has the role admin
 130          *
 131          * @return
 132          */
 133         public boolean isAdmin() {
 134                 // FIXME until we have rights implemented properly we do this
 135                 // by a simple string check. This has to change
 136
 137                 return "admin".equals(getAuthenticatedUser().getUsername());
 138         }
 139
 140         @Override
 141         public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
 142
 143         }
 144
 145         @Override
 146         public void contextStop(IMemento memento, IProgressMonitor monitor) {
 147
 148         }
 149
 150         @Override
 151         public void contextStart(IMemento memento, IProgressMonitor monitor){
 152                 conversation = CdmStore.createConversation();
 153         }
 154
 155         @Override
 156         public void contextRefresh(IProgressMonitor monitor) {
 157                 conversation = CdmStore.createConversation();
 158         }
 159
 160         @Override
 161         public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
 162
 163         }
 164 }