60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*!
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* \brief Generic class that allows to download files from a server to the
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* local application cache.
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*
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* \copyright Copyright (c) 2015-2019 Governikus GmbH & Co. KG, Germany
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*/
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#pragma once
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#include "Env.h"
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#include "GlobalStatus.h"
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#include "NetworkManager.h"
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#include <QNetworkReply>
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#include <QNetworkRequest>
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#include <QQueue>
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#include <QSharedPointer>
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#include <QSslCipher>
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#include <QUrl>
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namespace governikus
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{
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class Downloader
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: public QObject
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{
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Q_OBJECT
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friend class Env;
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private:
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QSharedPointer<QNetworkRequest> mCurrentRequest;
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QNetworkReply* mCurrentReply;
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QQueue<QSharedPointer<QNetworkRequest> > mPendingRequests;
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void scheduleDownload(QSharedPointer<QNetworkRequest> pDownloadRequest);
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void startDownloadIfPending();
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protected:
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Downloader();
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virtual ~Downloader();
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static Downloader& getInstance();
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private Q_SLOTS:
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void onSslErrors(const QList<QSslError>& pErrors);
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void onSslHandshakeDone();
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void onMetadataChanged();
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void onNetworkReplyFinished();
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public:
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Q_INVOKABLE virtual void download(const QUrl& pUpdateUrl);
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Q_INVOKABLE virtual void downloadIfNew(const QUrl& pUpdateUrl,
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const QDateTime& pCurrentTimestamp);
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Q_SIGNALS:
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void fireDownloadSuccess(const QUrl& pUpdateUrl, const QDateTime& pNewTimestamp, const QByteArray& pData);
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void fireDownloadFailed(const QUrl& pUpdateUrl, GlobalStatus::Code pErrorCode);
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void fireDownloadUnnecessary(const QUrl& pUpdateUrl);
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};
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} // namespace governikus
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