001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/security/owsrequestvalidator/wms/GetFeatureInfoResponseValidator.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstr. 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043 package org.deegree.security.owsrequestvalidator.wms;
044
045 import org.deegree.framework.util.MimeTypeMapper;
046 import org.deegree.ogcwebservices.InvalidParameterValueException;
047 import org.deegree.ogcwebservices.OGCWebServiceRequest;
048 import org.deegree.security.drm.model.User;
049 import org.deegree.security.owsproxy.Request;
050 import org.deegree.security.owsrequestvalidator.Policy;
051 import org.deegree.security.owsrequestvalidator.ResponseValidator;
052
053 /**
054 *
055 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
056 * @author last edited by: $Author: apoth $
057 *
058 * @version $Revision: 9346 $, $Date: 2007-12-27 17:39:07 +0100 (Do, 27 Dez 2007) $
059 */
060 class GetFeatureInfoResponseValidator extends ResponseValidator {
061
062 /**
063 * @param policy
064 */
065 public GetFeatureInfoResponseValidator( Policy policy ) {
066 super( policy );
067 }
068
069 /**
070 * validates the passed object as a response to a OWS request. The validity of the response may
071 * is assigned to specific user rights. If the passed user is <>null this will be evaluated.
072 * <br>
073 * the reponse may contain three valid kinds of objects:
074 * <ul>
075 * <li>a xml encoded exception
076 * <li>a GML document
077 * <li>a XML document
078 * <li>any other kind of document that is valid against the formats defined for GetFeatureInfo
079 * in the capabilities
080 * </ul>
081 * Each of these types can be identified by the mime-type of the response that is also passed to
082 * the method. <br>
083 * If something basic went wrong it is possible that not further specified kind of object is
084 * passed as response. In this case the method will throw an
085 * <tt>InvalidParameterValueException</tt> to avoid sending bad responses to the client.
086 *
087 * @param service
088 * service which produced the response (WMS, WFS ...)
089 * @param response
090 * @param mime
091 * mime-type of the response
092 * @param user
093 * @return
094 * @throws InvalidParameterValueException
095 * @see GetMapRequestValidator#validateRequest(OGCWebServiceRequest, User)
096 */
097 public byte[] validateResponse( String service, byte[] response, String mime, User user )
098 throws InvalidParameterValueException {
099
100 Request req = policy.getRequest( service, "GetFeatureInfo" );
101 // request is valid because no restrictions are made
102 if ( req.isAny() )
103 return response;
104
105 // Condition condition = req.getPostConditions();
106
107 if ( MimeTypeMapper.isKnownImageType( mime ) ) {
108 response = validateImage( response, mime, user );
109 } else if ( MimeTypeMapper.isKnownOGCType( mime ) ) {
110 // if the mime-type isn't an image type but a known
111 // OGC mime-type it must be an XML document.
112 // probably it is an exception but it also could be
113 // a GML document
114 response = validateXML( response, mime, user );
115 } else if ( mime.equals( "text/xml" ) ) {
116 // if the mime-type isn't an image type but 'text/xml'
117 // it could be an exception
118 response = validateXML( response, mime, user );
119 } else if ( mime.equals( "text/html" ) ) {
120 response = validateHTML( response, mime, user );
121 } else {
122 throw new InvalidParameterValueException( UNKNOWNMIMETYPE + mime );
123 }
124
125 return response;
126 }
127
128 /**
129 * validates the passed image to be valid against the policy
130 *
131 * @param image
132 * @param mime
133 * @param user
134 * @throws InvalidParameterValueException
135 */
136 private byte[] validateImage( byte[] image, String mime, User user )
137 throws InvalidParameterValueException {
138 // TODO
139 // define useful post-validation for images
140 // at the moment everything is valid
141 return image;
142 }
143
144 /**
145 * validates the passed xml to be valid against the policy
146 *
147 * @param xml
148 * @param mime
149 * @param user
150 * @throws InvalidParameterValueException
151 */
152 private byte[] validateXML( byte[] xml, String mime, User user )
153 throws InvalidParameterValueException {
154 // TODO
155 // define useful post-validation for xml-documents
156 // at the moment everything is valid
157 return xml;
158 }
159
160 /**
161 * validates the passed html to be valid against the policy
162 *
163 * @param xml
164 * @param mime
165 * @param user
166 * @throws InvalidParameterValueException
167 */
168 private byte[] validateHTML( byte[] xml, String mime, User user )
169 throws InvalidParameterValueException {
170 // TODO
171 // define useful post-validation for xml-documents
172 // at the moment everything is valid
173 return xml;
174 }
175 }