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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.store;
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import java.util.Observable;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.ui.IMemento;
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import org.springframework.security.authentication.BadCredentialsException;
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import org.springframework.security.authentication.LockedException;
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import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
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import org.springframework.security.core.Authentication;
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import org.springframework.security.core.context.SecurityContextHolder;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
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import eu.etaxonomy.cdm.model.common.User;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.model.IContextListener;
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/**
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* <p>LoginManager class.</p>
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*
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* @author n.hoffmann
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* @created 03.07.2009
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* @version 1.0
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*/
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public class LoginManager extends Observable implements IConversationEnabled, IContextListener{
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private ConversationHolder conversation;
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public LoginManager(){
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CdmStore.getContextManager().addContextListener(this);
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}
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/**
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* <p>authenticate</p>
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*
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* @param token a {@link org.springframework.security.authentication.UsernamePasswordAuthenticationToken} object.
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*/
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public boolean authenticate(String username, String password){
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try{
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getConversationHolder().bind();
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UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);
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SecurityContextHolder.clearContext();
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Authentication authentication = CdmStore.getAuthenticationManager().authenticate(token);
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SecurityContextHolder.getContext().setAuthentication(authentication);
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this.setChanged();
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this.notifyObservers();
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return true;
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}
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catch(BadCredentialsException e){
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StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Bad Credentials.");
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}
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catch(LockedException e){
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StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Account is locked.");
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}
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catch(IllegalArgumentException e){
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StoreUtil.warningDialog("Could not authenticate", this, "Could not authenticate. Reason: Username and/or Password empty.");
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}
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return false;
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}
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/**
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* <p>getAuthenticatedUser</p>
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*
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* @return a {@link eu.etaxonomy.cdm.model.common.User} object.
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*/
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public User getAuthenticatedUser(){
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Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
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if(authentication != null
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&& authentication.getPrincipal() != null
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&& authentication.getPrincipal() instanceof User){
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return (User)authentication.getPrincipal();
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}
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return null;
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}
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public void logoutAll(){
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SecurityContextHolder.clearContext();
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notifyObservers();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update(eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)
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*/
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@Override
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public void update(CdmDataChangeMap arg) {}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder()
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*/
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@Override
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public ConversationHolder getConversationHolder() {
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if(conversation == null){
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conversation = CdmStore.createConversation();
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}
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return conversation;
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}
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/**
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* Whether the current user has the role admin
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*
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* @return
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*/
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public boolean isAdmin() {
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// FIXME until we have rights implemented properly we do this
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// by a simple string check. This has to change
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return "admin".equals(getAuthenticatedUser().getUsername());
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}
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@Override
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public void contextAboutToStop(IMemento memento, IProgressMonitor monitor) {
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}
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@Override
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public void contextStop(IMemento memento, IProgressMonitor monitor) {
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}
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@Override
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public void contextStart(IMemento memento, IProgressMonitor monitor){
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conversation = CdmStore.createConversation();
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}
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@Override
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public void contextRefresh(IProgressMonitor monitor) {
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conversation = CdmStore.createConversation();
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}
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@Override
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public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
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}
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}
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