Downloader.h

gehe zur Dokumentation dieser Datei

 
#pragma once
 
#include "Env.h"
#include "GlobalStatus.h"
#include "NetworkManager.h"
 
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QQueue>
#include <QSharedPointer>
#include <QSslCipher>
#include <QUrl>
 
namespace governikus
{
class Downloader
    : public QObject
{
    Q_OBJECT
    friend class Env;
 
    private:
        QSharedPointer<QNetworkReply> mCurrentReply;
        QQueue<QSharedPointer<QNetworkRequest>> mPendingRequests;
 
        void scheduleDownload(QSharedPointer<QNetworkRequest> pDownloadRequest);
        void startDownloadIfPending();
 
    protected:
        Downloader();
        ~Downloader() override;
 
    private Q_SLOTS:
        void onSslErrors(const QList<QSslError>& pErrors);
        void onSslHandshakeDone();
        void onMetadataChanged();
        void onNetworkReplyFinished();
        void onNetworkReplyProgress(qint64 pBytesReceived, qint64 pBytesTotal);
 
    public:
        bool abort(const QUrl& pUpdateUrl);
        virtual void download(const QUrl& pUpdateUrl, const QDateTime& pCurrentTimestamp = QDateTime());
 
    Q_SIGNALS:
        void fireDownloadProgress(const QUrl& pUpdateUrl, qint64 pBytesReceived, qint64 pBytesTotal);
        void fireDownloadSuccess(const QUrl& pUpdateUrl, const QDateTime& pNewTimestamp, const QByteArray& pData);
        void fireDownloadFailed(const QUrl& pUpdateUrl, GlobalStatus::Code pErrorCode);
        void fireDownloadUnnecessary(const QUrl& pUpdateUrl);
};
 
} // namespace governikus