001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/enterprise/servlet/TolerantGetFeatureInfoFilter.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
037 package org.deegree.enterprise.servlet;
038
039 import java.io.IOException;
040 import java.util.HashMap;
041 import java.util.Map;
042
043 import javax.servlet.Filter;
044 import javax.servlet.FilterChain;
045 import javax.servlet.FilterConfig;
046 import javax.servlet.ServletException;
047 import javax.servlet.ServletRequest;
048 import javax.servlet.ServletResponse;
049 import javax.servlet.http.HttpServletRequest;
050 import javax.servlet.http.HttpServletRequestWrapper;
051
052 /**
053 * <code>TolerantGetFeatureInfoFilter</code>
054 *
055 * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
056 * @author last edited by: $Author: mschneider $
057 *
058 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
059 * @deprecated use the TolerantOGCRequestFilter instead
060 */
061 @Deprecated
062 public class TolerantGetFeatureInfoFilter implements Filter {
063
064 public void destroy() {
065 // nothing to destroy
066 }
067
068 public void doFilter( ServletRequest request, ServletResponse response, FilterChain chain )
069 throws IOException, ServletException {
070 Map<?, ?> map = request.getParameterMap();
071 final Map<String, String[]> newMap = new HashMap<String, String[]>();
072 boolean format = false, isgfi = false;
073
074 for ( Object keyO : map.keySet() ) {
075 String key = (String) keyO;
076 if ( key.equalsIgnoreCase( "format" ) ) {
077 format = true;
078 }
079
080 if ( key.equalsIgnoreCase( "request" ) ) {
081 String[] val = (String[]) map.get( key );
082 if ( val != null && val.length > 0 && val[0].equalsIgnoreCase( "getfeatureinfo" ) ) {
083 isgfi = true;
084 }
085 }
086
087 newMap.put( key, (String[]) map.get( key ) );
088 }
089
090 if ( !isgfi ) {
091 chain.doFilter( request, response );
092 }
093
094 if ( !format ) {
095 newMap.put( "format", new String[] { "image/png" } );
096 }
097
098 chain.doFilter( new HttpServletRequestWrapper( (HttpServletRequest) request ) {
099 @Override
100 public Map<?, ?> getParameterMap() {
101 return newMap;
102 }
103 }, response );
104 }
105
106 public void init( FilterConfig conf )
107 throws ServletException {
108 // no configuration is required
109 }
110
111 }