001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/security/owsrequestvalidator/wms/GetFeatureInfoResponseValidator.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.security.owsrequestvalidator.wms;
037
038 import org.deegree.framework.util.MimeTypeMapper;
039 import org.deegree.ogcwebservices.InvalidParameterValueException;
040 import org.deegree.ogcwebservices.OGCWebServiceRequest;
041 import org.deegree.security.drm.model.User;
042 import org.deegree.security.owsproxy.Request;
043 import org.deegree.security.owsrequestvalidator.Policy;
044 import org.deegree.security.owsrequestvalidator.ResponseValidator;
045
046 /**
047 *
048 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
049 * @author last edited by: $Author: mschneider $
050 *
051 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
052 */
053 class GetFeatureInfoResponseValidator extends ResponseValidator {
054
055 /**
056 * @param policy
057 */
058 public GetFeatureInfoResponseValidator( Policy policy ) {
059 super( policy );
060 }
061
062 /**
063 * validates the passed object as a response to a OWS request. The validity of the response may
064 * is assigned to specific user rights. If the passed user is <>null this will be evaluated.
065 * <br>
066 * the reponse may contain three valid kinds of objects:
067 * <ul>
068 * <li>a xml encoded exception
069 * <li>a GML document
070 * <li>a XML document
071 * <li>any other kind of document that is valid against the formats defined for GetFeatureInfo
072 * in the capabilities
073 * </ul>
074 * Each of these types can be identified by the mime-type of the response that is also passed to
075 * the method. <br>
076 * If something basic went wrong it is possible that not further specified kind of object is
077 * passed as response. In this case the method will throw an
078 * <tt>InvalidParameterValueException</tt> to avoid sending bad responses to the client.
079 *
080 * @param service
081 * service which produced the response (WMS, WFS ...)
082 * @param response
083 * @param mime
084 * mime-type of the response
085 * @param user
086 * @return the validated response or the unaltered response.
087 * @throws InvalidParameterValueException
088 * @see GetMapRequestValidator#validateRequest(OGCWebServiceRequest, User)
089 */
090 @Override
091 public byte[] validateResponse( String service, byte[] response, String mime, User user )
092 throws InvalidParameterValueException {
093
094 Request req = policy.getRequest( service, "GetFeatureInfo" );
095 // request is valid because no restrictions are made
096 if ( req.isAny() || req.getPostConditions().isAny() ) {
097 return response;
098 }
099
100 // Condition condition = req.getPostConditions();
101
102 if ( MimeTypeMapper.isKnownImageType( mime ) ) {
103 response = validateImage( response, mime, user );
104 } else if ( MimeTypeMapper.isKnownOGCType( mime ) ) {
105 // if the mime-type isn't an image type but a known
106 // OGC mime-type it must be an XML document.
107 // probably it is an exception but it also could be
108 // a GML document
109 response = validateXML( response, mime, user );
110 } else if ( mime.equals( "text/xml" ) ) {
111 // if the mime-type isn't an image type but 'text/xml'
112 // it could be an exception
113 response = validateXML( response, mime, user );
114 } else if ( mime.equals( "text/html" ) ) {
115 response = validateHTML( response, mime, user );
116 } else {
117 throw new InvalidParameterValueException( UNKNOWNMIMETYPE + mime );
118 }
119
120 return response;
121 }
122
123 /**
124 * validates the passed image to be valid against the policy
125 *
126 * @param image
127 * @param mime
128 * @param user
129 * @return the image parameter.
130 */
131 private byte[] validateImage( byte[] image, String mime, User user ) {
132 // TODO
133 // define useful post-validation for images
134 // at the moment everything is valid
135 return image;
136 }
137
138 /**
139 * validates the passed xml to be valid against the policy
140 *
141 * @param xml
142 * @param mime
143 * @param user
144 * @return the xml parameter.
145 */
146 private byte[] validateXML( byte[] xml, String mime, User user ){
147 // TODO
148 // define useful post-validation for xml-documents
149 // at the moment everything is valid
150 return xml;
151 }
152
153 /**
154 * validates the passed html to be valid against the policy
155 *
156 * @param html
157 * @param mime
158 * @param user
159 * @return the html parameter.
160 */
161 private byte[] validateHTML( byte[] html, String mime, User user ) {
162 // TODO
163 // define useful post-validation for xml-documents
164 // at the moment everything is valid
165 return html;
166 }
167 }