001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/security/owsrequestvalidator/wms/AbstractWMSRequestValidator.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 java.util.List;
039
040 import org.deegree.ogcwebservices.InvalidParameterValueException;
041 import org.deegree.security.owsproxy.Condition;
042 import org.deegree.security.owsproxy.OperationParameter;
043 import org.deegree.security.owsrequestvalidator.Messages;
044 import org.deegree.security.owsrequestvalidator.Policy;
045 import org.deegree.security.owsrequestvalidator.RequestValidator;
046
047 /**
048 *
049 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
050 * @author last edited by: $Author: mschneider $
051 *
052 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
053 */
054 abstract class AbstractWMSRequestValidator extends RequestValidator {
055
056 // known condition parameter
057 private static final String FORMAT = "format";
058
059 private static final String MAXWIDTH = "maxWidth";
060
061 private static final String MAXHEIGHT = "maxHeight";
062
063 private static final String INVALIDFORMAT = Messages.getString( "AbstractWMSRequestValidator.INVALIDFORMAT" );
064
065 private static final String INVALIDWIDTH1 = Messages.getString( "AbstractWMSRequestValidator.INVALIDWIDTH1" );
066
067 private static final String INVALIDWIDTH2 = Messages.getString( "AbstractWMSRequestValidator.INVALIDWIDTH2" );
068
069 private static final String INVALIDHEIGHT1 = Messages.getString( "AbstractWMSRequestValidator.INVALIDHEIGHT1" );
070
071 private static final String INVALIDHEIGHT2 = Messages.getString( "AbstractWMSRequestValidator.INVALIDHEIGHT2" );
072
073 /**
074 * @param policy
075 */
076 public AbstractWMSRequestValidator( Policy policy ) {
077 super( policy );
078 }
079
080 /**
081 * checks if the passed format is valid against the formats defined in the policy. If
082 * <tt>user</ff> != <tt>null</tt> the valid
083 * formats will be read from the user/rights repository
084 * @param condition condition containing the definition of the valid format
085 * @param format
086 * @throws InvalidParameterValueException
087 */
088 protected void validateFormat( Condition condition, String format )
089 throws InvalidParameterValueException {
090
091 OperationParameter op = condition.getOperationParameter( FORMAT );
092
093 // version is valid because no restrictions are made
094 if ( op.isAny() ) {
095 return;
096 }
097
098 List<String> list = op.getValues();
099
100 if ( !list.contains( format ) ) {
101 if ( !op.isUserCoupled() ) {
102 throw new InvalidParameterValueException( INVALIDFORMAT + format );
103 }
104 userCoupled = true;
105 }
106
107 }
108
109 /**
110 * checks if the passed width is > 0 and if it's valid against the maxWidth defined in the
111 * policy. If <tt>user</ff> != <tt>null</tt> the valid
112 * width will be read from the user/rights repository
113 * @param condition condition containing the definition of the valid width
114 * @param width
115 * @throws InvalidParameterValueException
116 */
117 protected void validateMaxWidth( Condition condition, int width )
118 throws InvalidParameterValueException {
119
120 if ( width < 1 ) {
121 throw new InvalidParameterValueException( INVALIDWIDTH1 + width );
122 }
123
124 OperationParameter op = condition.getOperationParameter( MAXWIDTH );
125
126 // version is valid because no restrictions are made
127 if ( op.isAny() ) {
128 return;
129 }
130
131 if ( width > op.getFirstAsInt() ) {
132 if ( !op.isUserCoupled() ) {
133 throw new InvalidParameterValueException( INVALIDWIDTH2 + width );
134 }
135 userCoupled = true;
136 }
137
138 }
139
140 /**
141 * checks if the passed height is > 0 and if it's valid against the maxHeight defined in the
142 * policy. If <tt>user</ff> != <tt>null</tt> the valid
143 * height will be read from the user/rights repository
144 * @param condition condition containing the definition of the valid height
145 * @param height
146 * @throws InvalidParameterValueException
147 */
148 protected void validateMaxHeight( Condition condition, int height )
149 throws InvalidParameterValueException {
150
151 if ( height < 1 ) {
152 throw new InvalidParameterValueException( INVALIDHEIGHT1 + height );
153 }
154
155 OperationParameter op = condition.getOperationParameter( MAXHEIGHT );
156
157 // version is valid because no restrictions are made
158 if ( op.isAny() ) {
159 return;
160 }
161
162 if ( height > op.getFirstAsInt() ) {
163 if ( !op.isUserCoupled() ) {
164 throw new InvalidParameterValueException( INVALIDHEIGHT2 + height );
165 }
166 userCoupled = true;
167 }
168 }
169 }