qgshttpexternalstorage_p.h

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/***************************************************************************
  qgswebdavexternalstorage.h
  --------------------------------------
  Date                 : March 2021
  Copyright            : (C) 2021 by Julien Cabieces
  Email                : julien dot cabieces at oslandia 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.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSWEBDAVEXTERNALSTORAGE_H
#define QGSWEBDAVEXTERNALSTORAGE_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgsexternalstorage.h"
#include "qgstaskmanager.h"
 
#include <QPointer>
#include <QUrl>
 
#define SIP_NO_FILE
 
class QgsFeedback;
class QgsHttpExternalStorageStoreTask;
class QgsFetchedContent;


class CORE_EXPORT QgsWebDavExternalStorage : public QgsExternalStorage
{
  public:
    QString type() const override;
 
    QString displayName() const override;
 
  protected:
    QgsExternalStorageStoredContent *doStore( const QString &filePath, const QString &url, const QString &authcfg = QString() ) const override;
 
    QgsExternalStorageFetchedContent *doFetch( const QString &url, const QString &authConfig = QString() ) const override;
};

class CORE_EXPORT QgsAwsS3ExternalStorage : public QgsExternalStorage
{
  public:
    QString type() const override;
 
    QString displayName() const override;
 
  protected:
    QgsExternalStorageStoredContent *doStore( const QString &filePath, const QString &url, const QString &authcfg = QString() ) const override;
 
    QgsExternalStorageFetchedContent *doFetch( const QString &url, const QString &authConfig = QString() ) const override;
};

class QgsHttpExternalStorageStoredContent : public QgsExternalStorageStoredContent
{
    Q_OBJECT
 
  public:
    QgsHttpExternalStorageStoredContent( const QString &filePath, const QString &url, const QString &authcfg = QString() );
 
    void cancel() override;
 
    QString url() const override;
 
    void store() override;
 
    void setPrepareRequestHandler( std::function< void( QNetworkRequest &request, QFile *f ) > );
 
  private:
    std::function< void( QNetworkRequest &request, QFile *f ) > mPrepareRequestHandler = nullptr;
    QPointer<QgsHttpExternalStorageStoreTask> mUploadTask;
    QString mUrl;
};

class QgsHttpExternalStorageFetchedContent : public QgsExternalStorageFetchedContent
{
    Q_OBJECT
 
  public:
    QgsHttpExternalStorageFetchedContent( QgsFetchedContent *fetchedContent );
 
    QString filePath() const override;
 
    void cancel() override;
 
    void fetch() override;
 
  private slots:
 
    void onFetched();
 
  private:
    QPointer<QgsFetchedContent> mFetchedContent;
};
 

class QgsHttpExternalStorageStoreTask : public QgsTask
{
    Q_OBJECT
 
  public:
    QgsHttpExternalStorageStoreTask( const QUrl &url, const QString &filePath, const QString &authCfg );
 
    ~QgsHttpExternalStorageStoreTask() override;
 
    bool run() override;
 
    void cancel() override;
 
    QString errorString() const;
 
    void setPrepareRequestHandler( std::function< void( QNetworkRequest &request, QFile *f ) > );
 
  private:
    std::function< void( QNetworkRequest &request, QFile *f ) > mPrepareRequestHandler = nullptr;
    const QUrl mUrl;
    const QString mFilePath;
    const QString mAuthCfg;
    std::unique_ptr<QgsFeedback> mFeedback;
    QString mErrorString;
};
 

#endif // QGSWEBDAVEXTERNALSTORAGE_H