qgsserverapiutils.h

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/***************************************************************************
                          qgsserverapiutils.h
 
  Class defining utilities for QGIS server APIs.
  -------------------
  begin                : 2019-04-16
  copyright            : (C) 2019 by Alessandro Pasotti
  email                : elpaso at itopen dot it
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
 
 
#ifndef QGSSERVERAPIUTILS_H
#define QGSSERVERAPIUTILS_H
 
#include "qgis_server.h"
#include <QString>
#include "qgsproject.h"
#include "qgsserverprojectutils.h"
#include "qgsserverapicontext.h"
#include "qgsserverexception.h"
#include "qgsvectorlayerserverproperties.h"
#include "qgsrange.h"
#include "qgsjsonutils.h"
 
#ifdef HAVE_SERVER_PYTHON_PLUGINS
#include "qgsaccesscontrol.h"
#include "qgsserverinterface.h"
#endif
 
class QgsRectangle;
class QgsCoordinateReferenceSystem;
class QgsVectorLayer;
 
#ifndef SIP_RUN
#include "nlohmann/json_fwd.hpp"
using namespace nlohmann;
#endif
 
class SERVER_EXPORT QgsServerApiUtils
{
 
  public:
 
    static QgsRectangle parseBbox( const QString &bbox );
 
    static QList< QgsVectorLayerServerProperties::WmsDimensionInfo > temporalDimensions( const QgsVectorLayer *layer );
 
    static QgsDateRange parseTemporalDateInterval( const QString &interval ) SIP_THROW( QgsServerApiBadRequestException );
 
    static QgsDateTimeRange parseTemporalDateTimeInterval( const QString &interval ) SIP_THROW( QgsServerApiBadRequestException );
 
    // T is TemporalDateInterval|TemporalDateTimeInterval, T2 is QDate|QdateTime
    template<typename T, class T2> static T parseTemporalInterval( const QString &interval ) SIP_SKIP;
 
 
    static QgsExpression temporalFilterExpression( const QgsVectorLayer *layer, const QString &interval );
 
    static json layerExtent( const QgsVectorLayer *layer ) SIP_SKIP;
 
    static json temporalExtent( const QgsVectorLayer *layer ) SIP_SKIP;
 
    static QVariantList temporalExtentList( const QgsVectorLayer *layer ) SIP_PYNAME( temporalExtent );
 
    static QgsCoordinateReferenceSystem parseCrs( const QString &bboxCrs );
 
    static const QVector<QgsVectorLayer *> publishedWfsLayers( const QgsServerApiContext &context );
 
#ifndef SIP_RUN
 
    template <typename T>
    static const QVector<T> publishedWfsLayers( const QgsServerApiContext &context )
    {
#ifdef HAVE_SERVER_PYTHON_PLUGINS
      QgsAccessControl *accessControl = context.serverInterface()->accessControls();
#endif
      const QgsProject *project = context.project();
      QVector<T> result;
      if ( project )
      {
        const QStringList wfsLayerIds = QgsServerProjectUtils::wfsLayerIds( *project );
        const auto constLayers { project->layers<T>() };
        for ( const auto &layer : constLayers )
        {
          if ( ! wfsLayerIds.contains( layer->id() ) )
          {
            continue;
          }
#ifdef HAVE_SERVER_PYTHON_PLUGINS
          if ( accessControl && !accessControl->layerReadPermission( layer ) )
          {
            continue;
          }
#endif
          result.push_back( layer );
        }
      }
      return result;
    }
 
#endif
 
 
    static QString sanitizedFieldValue( const QString &value );
 
    static QStringList publishedCrsList( const QgsProject *project );
 
    static QString crsToOgcUri( const QgsCoordinateReferenceSystem &crs );
 
    static QString appendMapParameter( const QString &path, const QUrl &requestUrl );
 
};
#endif // QGSSERVERAPIUTILS_H