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qgswms.cpp
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qgswms.cpp
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/***************************************************************************
qgswms.cpp
-------------------------
begin : December 20 , 2016
copyright : (C) 2007 by Marco Hugentobler ( parts fron qgswmshandler)
(C) 2014 by Alessandro Pasotti ( parts from qgswmshandler)
(C) 2016 by David Marteau
email : marco dot hugentobler at karto dot baug dot ethz dot ch
a dot pasotti at itopen dot it
david dot marteau at 3liz dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgsmodule.h"
#include "qgswmsutils.h"
#include "qgsdxfwriter.h"
#include "qgswmsgetcapabilities.h"
#include "qgswmsgetmap.h"
#include "qgswmsgetstyles.h"
#include "qgswmsgetcontext.h"
#include "qgswmsgetschemaextension.h"
#include "qgswmsgetprint.h"
#include "qgswmsgetfeatureinfo.h"
#include "qgswmsdescribelayer.h"
#include "qgswmsgetlegendgraphics.h"
#define QSTR_COMPARE( str, lit )\
(str.compare( QStringLiteral( lit ), Qt::CaseInsensitive ) == 0)
namespace QgsWms
{
/**
* \ingroup server
*/
class Service: public QgsService
{
public:
/**
* Constructor.
*/
Service( const QString &version, QgsServerInterface *serverIface )
: mVersion( version )
, mServerIface( serverIface )
{}
QString name() const override { return QStringLiteral( "WMS" ); }
QString version() const override { return mVersion; }
bool allowMethod( QgsServerRequest::Method method ) const override
{
return method == QgsServerRequest::GetMethod;
}
void executeRequest( const QgsServerRequest &request, QgsServerResponse &response,
const QgsProject *project ) override
{
QgsServerRequest::Parameters params = request.parameters();
QString versionString = params.value( "VERSION" );
if ( versionString.isEmpty() )
{
//WMTVER needs to be supported by WMS 1.1.1 for backwards compatibility with WMS 1.0.0
versionString = params.value( "WMTVER" );
}
// Set the default version
const bool valid = versionString.compare( "1.1.1" ) == 0 || versionString.compare( "1.3.0" ) == 0;
if ( versionString.isEmpty() || !valid )
{
versionString = mVersion;
}
// Get the request
QString req = params.value( QStringLiteral( "REQUEST" ) );
if ( req.isEmpty() )
{
throw QgsServiceException( QStringLiteral( "OperationNotSupported" ),
QStringLiteral( "Please check the value of the REQUEST parameter" ) );
}
if ( ( QSTR_COMPARE( mVersion, "1.1.1" ) && QSTR_COMPARE( req, "capabilities" ) )
|| QSTR_COMPARE( req, "GetCapabilities" ) )
{
writeGetCapabilities( mServerIface, project, versionString, request, response, false );
}
else if ( QSTR_COMPARE( req, "GetProjectSettings" ) )
{
//getProjectSettings extends WMS 1.3.0 capabilities
versionString = QStringLiteral( "1.3.0" );
writeGetCapabilities( mServerIface, project, versionString, request, response, true );
}
else if ( QSTR_COMPARE( req, "GetMap" ) )
{
QString format = params.value( QStringLiteral( "FORMAT" ) );
if QSTR_COMPARE( format, "application/dxf" )
{
writeAsDxf( mServerIface, project, versionString, request, response );
}
else
{
writeGetMap( mServerIface, project, versionString, request, response );
}
}
else if ( QSTR_COMPARE( req, "GetFeatureInfo" ) )
{
writeGetFeatureInfo( mServerIface, project, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "GetContext" ) )
{
writeGetContext( mServerIface, project, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "GetSchemaExtension" ) )
{
writeGetSchemaExtension( mServerIface, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "GetStyle" ) )
{
writeGetStyle( mServerIface, project, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "GetStyles" ) )
{
writeGetStyles( mServerIface, project, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "DescribeLayer" ) )
{
writeDescribeLayer( mServerIface, project, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "GetLegendGraphic" ) || QSTR_COMPARE( req, "GetLegendGraphics" ) )
{
writeGetLegendGraphics( mServerIface, project, versionString, request, response );
}
else if ( QSTR_COMPARE( req, "GetPrint" ) )
{
writeGetPrint( mServerIface, project, versionString, request, response );
}
else
{
// Operation not supported
throw QgsServiceException( QStringLiteral( "OperationNotSupported" ),
QString( "Request %1 is not supported" ).arg( req ) );
}
}
private:
QString mVersion;
QgsServerInterface *mServerIface = nullptr;
};
} // namespace QgsWms
/**
* \ingroup server
*/
class QgsWmsModule: public QgsServiceModule
{
public:
void registerSelf( QgsServiceRegistry ®istry, QgsServerInterface *serverIface ) override
{
QgsDebugMsg( "WMSModule::registerSelf called" );
registry.registerService( new QgsWms::Service( "1.3.0", serverIface ) );
}
};
// Entry points
QGISEXTERN QgsServiceModule *QGS_ServiceModule_Init()
{
static QgsWmsModule sModule;
return &sModule;
}
QGISEXTERN void QGS_ServiceModule_Exit( QgsServiceModule * )
{
// Nothing to do
}