001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/portal/standard/security/control/GetUserInfoListener.java $
002    /*----------------------------------------------------------------------------
003     This file is part of deegree, http://deegree.org/
004     Copyright (C) 2001-2009 by:
005     - Department of Geography, University of Bonn -
006     and
007     - lat/lon GmbH -
008    
009     This library is free software; you can redistribute it and/or modify it under
010     the terms of the GNU Lesser General Public License as published by the Free
011     Software Foundation; either version 2.1 of the License, or (at your option)
012     any later version.
013     This library is distributed in the hope that it will be useful, but WITHOUT
014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016     details.
017     You should have received a copy of the GNU Lesser General Public License
018     along with this library; if not, write to the Free Software Foundation, Inc.,
019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020    
021     Contact information:
022    
023     lat/lon GmbH
024     Aennchenstr. 19, 53177 Bonn
025     Germany
026     http://lat-lon.de/
027    
028     Department of Geography, University of Bonn
029     Prof. Dr. Klaus Greve
030     Postfach 1147, 53001 Bonn
031     Germany
032     http://www.geographie.uni-bonn.de/deegree/
033    
034     e-mail: info@deegree.org
035     ----------------------------------------------------------------------------*/
036    package org.deegree.portal.standard.security.control;
037    
038    import java.io.IOException;
039    import java.net.URL;
040    
041    import javax.servlet.http.HttpServletRequest;
042    import javax.servlet.http.HttpSession;
043    
044    import org.deegree.enterprise.control.ajax.AbstractListener;
045    import org.deegree.enterprise.control.ajax.ResponseHandler;
046    import org.deegree.enterprise.control.ajax.WebEvent;
047    import org.deegree.framework.log.ILogger;
048    import org.deegree.framework.log.LoggerFactory;
049    import org.deegree.framework.util.StringTools;
050    import org.deegree.framework.xml.NamespaceContext;
051    import org.deegree.framework.xml.XMLFragment;
052    import org.deegree.framework.xml.XMLParsingException;
053    import org.deegree.framework.xml.XMLTools;
054    import org.deegree.ogcbase.BaseURL;
055    import org.deegree.ogcbase.CommonNamespaces;
056    import org.deegree.ogcwebservices.OWSUtils;
057    import org.deegree.portal.Constants;
058    import org.deegree.portal.context.GeneralExtension;
059    import org.deegree.portal.context.ViewContext;
060    import org.xml.sax.SAXException;
061    
062    /**
063     * TODO add class documentation here
064     * 
065     * @author <a href="mailto:name@deegree.org">Andreas Poth</a>
066     * @author last edited by: $Author: apoth $
067     * 
068     * @version $Revision: 22505 $, $Date: 2010-02-11 11:33:00 +0100 (Do, 11 Feb 2010) $
069     */
070    public class GetUserInfoListener extends AbstractListener {
071    
072        private static final ILogger LOG = LoggerFactory.getLogger( GetUserInfoListener.class );
073    
074        private static final NamespaceContext nsContext = CommonNamespaces.getNamespaceContext();
075    
076        /*
077         * (non-Javadoc)
078         * 
079         * @see
080         * org.deegree.enterprise.control.ajax.AbstractListener#actionPerformed(org.deegree.enterprise.control.ajax.WebEvent
081         * , org.deegree.enterprise.control.ajax.ResponseHandler)
082         */
083        public void actionPerformed( WebEvent event, ResponseHandler responseHandler )
084                                throws IOException {
085    
086            HttpSession session = event.getSession();
087            try {
088                UserBean user = readUserInformation( session );
089                responseHandler.writeAndClose( false, user );
090            } catch ( Exception e ) {
091                LOG.logError( e );
092                responseHandler.writeAndClose( "ERROR: can not read user informations" );
093            }
094        }
095    
096        /**
097         * gets the user name assigned to the passed session ID from an authentication service. If no user is assigned to
098         * the session ID <tt>null</tt> will be returned. If the session is closed or expired an exception will be thrown
099         * 
100         * @param session
101         * @return name of the user assigned to the passed session ID
102         * @throws XMLParsingException
103         * @throws SAXException
104         * @throws IOException
105         */
106        protected UserBean readUserInformation( HttpSession session )
107                                throws XMLParsingException, IOException, SAXException {
108    
109            String sessionId = null;
110            ViewContext vc = (ViewContext) session.getAttribute( Constants.CURRENTMAPCONTEXT );
111            if ( vc == null ) {
112                return null;
113            }
114            GeneralExtension ge = vc.getGeneral().getExtension();
115            UserBean user = null;
116    
117            if ( sessionId != null && ge.getAuthentificationSettings() != null ) {
118                LOG.logDebug( "try getting user from WAS/sessionID" );
119                BaseURL baseUrl = ge.getAuthentificationSettings().getAuthentificationURL();
120                String url = OWSUtils.validateHTTPGetBaseURL( baseUrl.getOnlineResource().toExternalForm() );
121                StringBuffer sb = new StringBuffer( url );
122                sb.append( "request=DescribeUser&SESSIONID=" ).append( sessionId );
123    
124                XMLFragment xml = new XMLFragment();
125                xml.load( new URL( sb.toString() ) );
126    
127                String userName = XMLTools.getRequiredNodeAsString( xml.getRootElement(), "/User/UserName", nsContext );
128                String firstName = XMLTools.getRequiredNodeAsString( xml.getRootElement(), "/User/FirstName", nsContext );
129                String lastName = XMLTools.getRequiredNodeAsString( xml.getRootElement(), "/User/LastName", nsContext );
130                String mailAddress = XMLTools.getRequiredNodeAsString( xml.getRootElement(), "/User/EMailAddress",
131                                                                       nsContext );
132                user = new UserBean( userName, firstName, lastName, mailAddress );
133            } else {
134                LOG.logDebug( "try getting user from getUserPrincipal()" );
135                if ( ( (HttpServletRequest) getRequest() ).getUserPrincipal() != null ) {
136                    String userName = ( (HttpServletRequest) getRequest() ).getUserPrincipal().getName();
137                    if ( userName.indexOf( "\\" ) > 1 ) {
138                        String[] us = StringTools.toArray( userName, "\\", false );
139                        userName = us[us.length - 1];
140                    }
141                }
142            }
143            LOG.logDebug( "userName: " + user.getUserName() );
144            return user;
145        }
146    
147        // ////////////////////////////////////////////////////////////////////////////////
148        // inner classes
149        // ////////////////////////////////////////////////////////////////////////////////
150    
151        public class UserBean {
152            private String userName = null;
153    
154            private String firstName = null;
155    
156            private String lastName = null;
157    
158            private String mailAddress = null;
159    
160            /**
161             * @param userName
162             * @param firstName
163             * @param lastName
164             * @param mailAddress
165             */
166            public UserBean( String userName, String firstName, String lastName, String mailAddress ) {
167                super();
168                this.userName = userName;
169                this.firstName = firstName;
170                this.lastName = lastName;
171                this.mailAddress = mailAddress;
172            }
173    
174            /**
175             * @return the userName
176             */
177            public String getUserName() {
178                return userName;
179            }
180    
181            /**
182             * @param userName
183             *            the userName to set
184             */
185            public void setUserName( String userName ) {
186                this.userName = userName;
187            }
188    
189            /**
190             * @return the firstName
191             */
192            public String getFirstName() {
193                return firstName;
194            }
195    
196            /**
197             * @param firstName
198             *            the firstName to set
199             */
200            public void setFirstName( String firstName ) {
201                this.firstName = firstName;
202            }
203    
204            /**
205             * @return the lastName
206             */
207            public String getLastName() {
208                return lastName;
209            }
210    
211            /**
212             * @param lastName
213             *            the lastName to set
214             */
215            public void setLastName( String lastName ) {
216                this.lastName = lastName;
217            }
218    
219            /**
220             * @return the mailAddress
221             */
222            public String getMailAddress() {
223                return mailAddress;
224            }
225    
226            /**
227             * @param mailAddress
228             *            the mailAddress to set
229             */
230            public void setMailAddress( String mailAddress ) {
231                this.mailAddress = mailAddress;
232            }
233    
234        }
235    
236    }