qgsnetworkcontentfetcher.h

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/***************************************************************************
                       qgsnetworkcontentfetcher.h
                             -------------------
    begin                : July, 2014
    copyright            : (C) 2014 by Nyall Dawson
    email                : nyall dot dawson at gmail 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 QGSNETWORKCONTENTFETCHER_H
#define QGSNETWORKCONTENTFETCHER_H
 
#include "qgis_core.h"
#include "qgshttpheaders.h"
 
#include <QNetworkReply>
#include <QUrl>
 
class QTextCodec;

class CORE_EXPORT QgsNetworkContentFetcher : public QObject
{
    Q_OBJECT
 
  public:
 
    QgsNetworkContentFetcher() = default;
 
    ~QgsNetworkContentFetcher() override;

    void fetchContent( const QUrl &url, const QString &authcfg = QString(), const QgsHttpHeaders &headers = QgsHttpHeaders() );

    void fetchContent( const QNetworkRequest &request, const QString &authcfg = QString() );

    QNetworkReply *reply();

    QString contentDispositionFilename() const;

    QString contentAsString() const;

    void cancel();

    bool wasCanceled() const;
 
  signals:

    void finished();

    void downloadProgress( qint64 bytesReceived, qint64 bytesTotal );

    void errorOccurred( QNetworkReply::NetworkError code, const QString &errorMsg );
 
  private:
 
    QString mAuthCfg;
    std::unique_ptr<QNetworkReply> mReply;
 
    bool mContentLoaded = false;
 
    bool mIsCanceled = false;

    QTextCodec *codecForHtml( QByteArray &array ) const;
 
  private slots:

    void contentLoaded( bool ok = true );
 
};
 
#endif