void QgsWFSServer::startGetFeature( QgsRequestHandler& request, const QString& format )
{
QByteArray result;
QString fcString;
if ( format == "GeoJSON" )
{
fcString = "{\"type\": \"FeatureCollection\",\n";
fcString += " \"features\": [\n";
result = fcString.toUtf8();
request.startGetFeatureResponse( &result, format );
}
else
{
//wfs:FeatureCollection
fcString = "<wfs:FeatureCollection";
fcString += " xmlns=\"http://www.opengis.net/wfs\"";
fcString += " xmlns:wfs=\"http://www.opengis.net/wfs\"";
fcString += " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"";
fcString += " xsi:schemaLocation=\"http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/wfs.xsd\"";
fcString += " xmlns:ogc=\"http://www.opengis.net/ogc\"";
fcString += " xmlns:gml=\"http://www.opengis.net/gml\"";
fcString += " xmlns:ows=\"http://www.opengis.net/ows\"";
fcString += " xmlns:xlink=\"http://www.w3.org/1999/xlink\"";
fcString += " xmlns:qgs=\"http://www.qgis.org/gml\"";
fcString += ">";
result = fcString.toUtf8();
request.startGetFeatureResponse( &result, format );
}
fcString = "";
}
void QgsWFSServer::startGetFeature( QgsRequestHandler& request, const QString& format, QgsCoordinateReferenceSystem& crs, QgsRectangle* rect )
{
QByteArray result;
QString fcString;
if ( format == "GeoJSON" )
{
fcString = "{\"type\": \"FeatureCollection\",\n";
fcString += " \"bbox\": [ " + QString::number( rect->xMinimum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + ", " + QString::number( rect->yMinimum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + ", " + QString::number( rect->xMaximum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + ", " + QString::number( rect->yMaximum(), 'f', 6 ).remove( QRegExp( "[0]{1,5}$" ) ) + "],\n";
fcString += " \"features\": [\n";
result = fcString.toUtf8();
request.startGetFeatureResponse( &result, format );
}
else
{
//Prepare url
//Some client requests already have http://<SERVER_NAME> in the REQUEST_URI variable
QString hrefString;
QString requestUrl = getenv( "REQUEST_URI" );
QUrl mapUrl( requestUrl );
mapUrl.setHost( QString( getenv( "SERVER_NAME" ) ) );
//Add non-default ports to url
QString portString = getenv( "SERVER_PORT" );
if ( !portString.isEmpty() )
{
bool portOk;
int portNumber = portString.toInt( &portOk );
if ( portOk )
{
if ( portNumber != 80 )
{
mapUrl.setPort( portNumber );
}
}
}
if ( QString( getenv( "HTTPS" ) ).compare( "on", Qt::CaseInsensitive ) == 0 )
{
mapUrl.setScheme( "https" );
}
else
{
mapUrl.setScheme( "http" );
}
QList<QPair<QString, QString> > queryItems = mapUrl.queryItems();
QList<QPair<QString, QString> >::const_iterator queryIt = queryItems.constBegin();
for ( ; queryIt != queryItems.constEnd(); ++queryIt )
{
if ( queryIt->first.compare( "REQUEST", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
mapUrl.addQueryItem( queryIt->first, "DescribeFeatureType" );
}
else if ( queryIt->first.compare( "FORMAT", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "OUTPUTFORMAT", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "BBOX", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "FEATUREID", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "FILTER", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "MAXFEATURES", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "PROPERTYNAME", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
else if ( queryIt->first.compare( "_DC", Qt::CaseInsensitive ) == 0 )
{
mapUrl.removeQueryItem( queryIt->first );
}
}
mapUrl.addQueryItem( "OUTPUTFORMAT", "XMLSCHEMA" );
hrefString = mapUrl.toString();
//wfs:FeatureCollection
fcString = "<wfs:FeatureCollection";
fcString += " xmlns:wfs=\"http://www.opengis.net/wfs\"";
fcString += " xmlns:ogc=\"http://www.opengis.net/ogc\"";
fcString += " xmlns:gml=\"http://www.opengis.net/gml\"";
fcString += " xmlns:ows=\"http://www.opengis.net/ows\"";
fcString += " xmlns:xlink=\"http://www.w3.org/1999/xlink\"";
fcString += " xmlns:qgs=\"http://www.qgis.org/gml\"";
fcString += " xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"";
fcString += " xsi:schemaLocation=\"http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/wfs.xsd http://www.qgis.org/gml " + hrefString.replace( "&", "&" ) + "\"";
fcString += ">";
result = fcString.toUtf8();
request.startGetFeatureResponse( &result, format );
QDomDocument doc;
QDomElement bbElem = doc.createElement( "gml:boundedBy" );
QDomElement boxElem = createBoxElem( rect, doc );
if ( !boxElem.isNull() )
{
if ( crs.isValid() )
{
boxElem.setAttribute( "srsName", crs.authid() );
}
bbElem.appendChild( boxElem );
doc.appendChild( bbElem );
}
result = doc.toByteArray();
request.sendGetFeatureResponse( &result );
}
fcString = "";
}