qgswmsgetprint.cpp

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/***************************************************************************
                              qgswmsgetprint.h
                              -------------------------
  begin                : December 20 , 2016
  copyright            : (C) 2007 by Marco Hugentobler  (original code)
                         (C) 2014 by Alessandro Pasotti (original code)
                         (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 "qgswmsutils.h"
#include "qgswmsgetprint.h"
#include "qgswmsrenderer.h"

namespace QgsWms
{
  void writeGetPrint( QgsServerInterface *serverIface, const QgsProject *project,
                      const QString &version, const QgsServerRequest &request,
                      QgsServerResponse &response )
  {
    QgsServerRequest::Parameters params = request.parameters();

    Q_UNUSED( version );

    QgsWmsParameters wmsParameters( QUrlQuery( request.url() ) );
    QgsRenderer renderer( serverIface, project, wmsParameters );

    QString format = params.value( "FORMAT" );
    QString contentType;

    // GetPrint supports svg/png/pdf
    if ( format.compare( QLatin1String( "image/png" ), Qt::CaseInsensitive ) == 0 ||
         format.compare( QLatin1String( "png" ), Qt::CaseInsensitive ) == 0 )
    {
      format   = QStringLiteral( "png" );
      contentType = QStringLiteral( "image/png" );
    }
    else if ( format.compare( QLatin1String( "image/jpg" ), Qt::CaseInsensitive ) == 0 ||
              format.compare( QLatin1String( "image/jpeg" ), Qt::CaseInsensitive ) == 0 ||
              format.compare( QLatin1String( "jpg" ), Qt::CaseInsensitive ) == 0 ||
              format.compare( QLatin1String( "jpeg" ), Qt::CaseInsensitive ) == 0 )
    {
      format   = QStringLiteral( "jpg" );
      contentType = QStringLiteral( "image/jpeg" );
    }
    else if ( format.compare( QLatin1String( "image/svg" ), Qt::CaseInsensitive ) == 0 ||
              format.compare( QLatin1String( "image/svg+xml" ), Qt::CaseInsensitive ) == 0 ||
              format.compare( QLatin1String( "svg" ), Qt::CaseInsensitive ) == 0 )
    {
      format   = QStringLiteral( "svg" );
      contentType = QStringLiteral( "image/svg+xml" );
    }
    else if ( format.compare( QLatin1String( "application/pdf" ), Qt::CaseInsensitive ) == 0 ||
              format.compare( QLatin1String( "pdf" ), Qt::CaseInsensitive ) == 0 )
    {
      format = QStringLiteral( "pdf" );
      contentType = QStringLiteral( "application/pdf" );
    }
    else
    {
      throw QgsServiceException( QStringLiteral( "InvalidFormat" ),
                                 QString( "Output format %1 is not supported by the GetPrint request" ).arg( format ) );
    }

    response.setHeader( QStringLiteral( "Content-Type" ), contentType );
    response.write( renderer.getPrint( format ) );
  }

} // namespace QgsWms