001    //$HeadURL$
002    /*----------------    FILE HEADER  ------------------------------------------
003     This file is part of deegree.
004     Copyright (C) 2001-2008 by:
005     Department of Geography, University of Bonn
006     http://www.giub.uni-bonn.de/deegree/
007     lat/lon GmbH
008     http://www.lat-lon.de
009    
010     This library is free software; you can redistribute it and/or
011     modify it under the terms of the GNU Lesser General Public
012     License as published by the Free Software Foundation; either
013     version 2.1 of the License, or (at your option) any later version.
014     This library is distributed in the hope that it will be useful,
015     but WITHOUT ANY WARRANTY; without even the implied warranty of
016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017     Lesser General Public License for more details.
018     You should have received a copy of the GNU Lesser General Public
019     License along with this library; if not, write to the Free Software
020     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
021     Contact:
022    
023     Andreas Poth
024     lat/lon GmbH
025     Aennchenstr. 19
026     53177 Bonn
027     Germany
028     E-Mail: poth@lat-lon.de
029    
030     Prof. Dr. Klaus Greve
031     Department of Geography
032     University of Bonn
033     Meckenheimer Allee 166
034     53115 Bonn
035     Germany
036     E-Mail: greve@giub.uni-bonn.de
037     ---------------------------------------------------------------------------*/
038    
039    package org.deegree.security;
040    
041    import java.util.Map;
042    
043    import org.deegree.framework.log.ILogger;
044    import org.deegree.framework.log.LoggerFactory;
045    import org.deegree.i18n.Messages;
046    import org.deegree.security.drm.SecurityAccessManager;
047    import org.deegree.security.drm.WrongCredentialsException;
048    import org.deegree.security.drm.model.User;
049    
050    /**
051     * 
052     * 
053     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
054     * @author last edited by: $Author: poth $
055     * 
056     * @version. $Revision: 6251 $, $Date: 2007-03-19 16:59:28 +0100 (Mo, 19 Mrz 2007) $
057     */
058    public class UserPrincipalAuthentication extends AbstractAuthentication {
059    
060        private static final ILogger LOG = LoggerFactory.getLogger( UserPrincipalAuthentication.class );
061        
062        protected static final String AUTH_PARAM_USERPRINCIPAL = "USERPRINCIPAL";
063    
064        /**
065         * 
066         * @param authenticationName
067         * @param initParams
068         */
069        public UserPrincipalAuthentication( String authenticationName, Map<String, String> initParams ) {
070            super( authenticationName, initParams );
071        }
072    
073        /**
074         * authenticates a user and returns an instance of
075         * 
076         * @see {@link User} if authentication has been successfull. Otherwise a
077         *      WrongCredentialsException will be thrown
078         * @return an instance of User
079         * @throws WrongCredentialsException
080         */
081        public User authenticate( Map<String, String> params )
082                                throws WrongCredentialsException {
083            String user = params.get( AUTH_PARAM_USERPRINCIPAL );
084    
085            LOG.logDebug( "USER: ", user );
086            User usr = null;
087            if ( user != null ) {
088                try {
089                    SecurityAccessManager sam = SecurityAccessManager.getInstance();
090                    usr = sam.getUserByName( user );
091                    usr.authenticate( null );
092                } catch ( Exception e ) {
093                    LOG.logError( e.getMessage() );
094                    throw new WrongCredentialsException( Messages.getMessage( "OWSPROXY_USER_AUTH_ERROR", user ) );
095                }
096            }
097    
098            return usr;
099        }
100    
101    }