package org.deegree.security.owsrequestvalidator.wfs;
import java.util.List;
import org.deegree.datatypes.QualifiedName;
import org.deegree.datatypes.Types;
import org.deegree.model.feature.Feature;
import org.deegree.model.feature.FeatureFactory;
import org.deegree.model.feature.FeatureProperty;
import org.deegree.model.feature.schema.FeatureType;
import org.deegree.model.feature.schema.PropertyType;
import org.deegree.ogcwebservices.InvalidParameterValueException;
import org.deegree.ogcwebservices.OGCWebServiceRequest;
import org.deegree.ogcwebservices.wfs.operation.DescribeFeatureType;
import org.deegree.portal.standard.security.control.ClientHelper;
import org.deegree.security.UnauthorizedException;
import org.deegree.security.drm.model.RightType;
import org.deegree.security.drm.model.User;
import org.deegree.security.owsproxy.Condition;
import org.deegree.security.owsproxy.OperationParameter;
import org.deegree.security.owsproxy.Request;
import org.deegree.security.owsrequestvalidator.Messages;
import org.deegree.security.owsrequestvalidator.Policy;
/**
*
*
*
* @version $Revision: 1.3 $
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
* @author last edited by: $Author: poth $
*
* @version 1.0. $Revision: 1.3 $, $Date: 2006/08/15 19:00:19 $
*
* @since 2.0
*/
class DescribeFeatureTypeRequestValidator extends AbstractWFSRequestValidator {
// known condition parameter
private static final String FORMAT = "format";
private static final String INVALIDFORMAT =
Messages.getString("GetFeatureRequestValidator.INVALIDFORMAT");
private static FeatureType gfFT = null;
static {
if ( gfFT == null ) {
gfFT =DescribeFeatureTypeRequestValidator.createFeatureType();
}
}
/**
* @param policy
*/
public DescribeFeatureTypeRequestValidator(Policy policy) {
super(policy);
}
/* (non-Javadoc)
* @see org.deegree_impl.security.RequestValidator#validateRequest(org.deegree.services.OGCWebServiceRequest, java.lang.String)
*/
public void validateRequest(OGCWebServiceRequest request, User user)
throws InvalidParameterValueException, UnauthorizedException {
userCoupled = false;
Request req = policy.getRequest( "WFS", "DescribeFeatureType" );
// request is valid because no restrictions are made
if ( req.isAny() ) return;
Condition condition = req.getPreConditions();
DescribeFeatureType wfsreq = (DescribeFeatureType)request;
validateVersion( condition, wfsreq.getVersion() );
QualifiedName[] typeNames = wfsreq.getTypeNames();
String[] ft = new String[typeNames.length];
for (int i = 0; i < ft.length; i++) {
StringBuffer sb = new StringBuffer( 200 );
sb.append( '{' ).append( typeNames[i].getNamespace().toASCIIString() );
sb.append( "}:" ).append( typeNames[i].getLocalName() );
ft[i] = sb.toString();
}
validateFeatureTypes( condition, ft );
validateFormat( condition, wfsreq.getOutputFormat() );
if ( userCoupled ) {
validateAgainstRightsDB( wfsreq, user );
}
}
/**
* valides if the format you in a GetFeature request is valid against
* the policy assigned to Validator. If the passed user is not <tt>null</tt>
* and the format parameter is user coupled the format will be validated
* against a users and rights management system.
*
* @param condition
* @param format
* @throws InvalidParameterValueException
*/
private void validateFormat(Condition condition, String format)
throws InvalidParameterValueException {
OperationParameter op = condition.getOperationParameter( FORMAT );
// version is valid because no restrictions are made
if ( op.isAny() ) return;
List validLayers = op.getValues();
if ( op.isUserCoupled() ) {
userCoupled = true;
} else {
if ( !validLayers.contains( format ) ) {
throw new InvalidParameterValueException( INVALIDFORMAT + format );
}
}
}
/**
* validates the passed WMS GetMap request against a User- and
* Rights-Management DB.
*
* @param wmsreq
* @param user
* @throws InvalidParameterValueException
*/
private void validateAgainstRightsDB( DescribeFeatureType wfsreq, User user )
throws InvalidParameterValueException,
UnauthorizedException{
if ( user == null ) {
throw new UnauthorizedException("no access to anonymous user");
}
// create feature that describes the map request
FeatureProperty[] fps = new FeatureProperty[2];
fps[0] = FeatureFactory.createFeatureProperty("version", wfsreq.getVersion() );
fps[1] = FeatureFactory.createFeatureProperty("outputformat",
wfsreq.getOutputFormat() );
Feature feature = FeatureFactory.createFeature("id", gfFT, fps);
QualifiedName[] typeNames = wfsreq.getTypeNames();
for (int i = 0; i < typeNames.length; i++) {
StringBuffer sb = new StringBuffer( 200 );
sb.append( '{' ).append( typeNames[i].getNamespace().toASCIIString() );
sb.append( "}:" ).append( typeNames[i].getLocalName() );
handleUserCoupledRules( user, feature, sb.toString(),
ClientHelper.TYPE_FEATURETYPE, RightType.DESCRIBEFEATURETYPE );
}
}
/**
* creates a feature type that matches the parameters of a GetLagendGraphic
* request
*
* @return created <tt>FeatureType</tt>
*/
private static FeatureType createFeatureType() {
PropertyType[] ftps = new PropertyType[2];
ftps[0] = FeatureFactory.createSimplePropertyType(new QualifiedName("version"),
Types.VARCHAR, false);
ftps[1] = FeatureFactory.createSimplePropertyType(new QualifiedName("outputformat"),
Types.VARCHAR, false);
return FeatureFactory.createFeatureType( "DescribeFeatureType", false, ftps);
}
}
/* ********************************************************************
Changes to this class. What the people have been up to:
$Log: DescribeFeatureTypeRequestValidator.java,v $
Revision 1.3 2006/08/15 19:00:19 poth
*** empty log message ***
Revision 1.2 2006/08/10 07:17:52 poth
bug fix - removing Arrays.asList calls for transforming op.geValues because accoring to refactoring this method it already returns a list
Revision 1.1 2006/07/23 08:44:53 poth
refactoring - moved validators assigned to OWS into specialized packages
Revision 1.3 2006/05/25 14:33:32 poth
support for WFS DescribeFeatureType added
********************************************************************** */