66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
#include "update_downloader.h"
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#include <QDebug>
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#include <QUrl>
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UpdateDownloader::UpdateDownloader(QObject *parent) : QObject(parent), response(nullptr)
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{
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netMan = new QNetworkAccessManager(this);
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}
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void UpdateDownloader::beginDownload(QUrl downloadUrl)
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{
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// Save the original URL because we need it for the filename
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if (originalUrl.isEmpty())
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originalUrl = downloadUrl;
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response = netMan->get(QNetworkRequest(downloadUrl));
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connect(response, SIGNAL(finished()), this, SLOT(fileFinished()));
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connect(response, SIGNAL(downloadProgress(qint64, qint64)), this, SLOT(downloadProgress(qint64, qint64)));
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connect(this, SIGNAL(stopDownload()), response, SLOT(abort()));
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}
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void UpdateDownloader::downloadError(QNetworkReply::NetworkError)
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{
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if (response == nullptr)
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return;
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emit error(response->errorString().toUtf8());
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}
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void UpdateDownloader::fileFinished()
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{
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// If we finished but there's a redirect, follow it
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QVariant redirect = response->attribute(QNetworkRequest::RedirectionTargetAttribute);
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if (!redirect.isNull()) {
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beginDownload(redirect.toUrl());
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return;
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}
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// Handle any errors we had
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if (response->error()) {
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emit error(response->errorString());
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return;
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}
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// Work out the file name of the download
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QString fileName = QDir::temp().path() + QDir::separator() + originalUrl.toString().section('/', -1);
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// Save the build in a temporary directory
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QFile file(fileName);
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if (!file.open(QIODevice::WriteOnly)) {
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emit error(tr("Could not open the file for reading."));
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return;
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}
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file.write(response->readAll());
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file.close();
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// Emit the success signal with a URL to the download file
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emit downloadSuccessful(QUrl::fromLocalFile(fileName));
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}
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void UpdateDownloader::downloadProgress(qint64 bytesRead, qint64 totalBytes)
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{
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emit progressMade(bytesRead, totalBytes);
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}
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