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OpenBoard/src/network/UBHttpFileDownloader.cpp

111 lines
3.0 KiB

/*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBHttpFileDownloader.h"
#include "network/UBNetworkAccessManager.h"
#include "core/memcheck.h"
UBHttpFileDownloader::UBHttpFileDownloader(QObject *parent)
: QObject(parent)
{
// NOOP
}
UBHttpFileDownloader::~UBHttpFileDownloader()
{
// NOOP
}
void UBHttpFileDownloader::download(const QList<QUrl>& urls, const QList<QFile*>& files)
{
mUrlsToDownload = urls;
mFilesToSave = files;
mSuccess = true;
downloadNext();
}
void UBHttpFileDownloader::downloadNext()
{
if (mUrlsToDownload.length() > 0 && mFilesToSave.length() > 0)
{
QUrl url = mUrlsToDownload.takeFirst();
mCurrentFile = mFilesToSave.takeFirst();
if (!mCurrentFile->open(QIODevice::WriteOnly | QIODevice::Truncate))
{
qCritical() << "cannot open " << mCurrentFile << " for writing ...";
return;
}
UBNetworkAccessManager * nam = UBNetworkAccessManager::defaultAccessManager();
QNetworkRequest request(url);
mReply = nam->get(request); // UB 4.2 TODO who owns and delete the reply ?
connect(mReply, SIGNAL(finished ()), this, SLOT(finished ()));
connect(mReply, SIGNAL(error ( QNetworkReply::NetworkError )),
this, SLOT(error ( QNetworkReply::NetworkError)));
connect(mReply, SIGNAL(downloadProgress ( qint64 , qint64 )),
this, SLOT(downloadProgress(qint64 , qint64)));
connect(mReply, SIGNAL(readyRead ()), this, SLOT( readyRead()));
}
else
{
emit finished(mSuccess);
}
}
void UBHttpFileDownloader::downloadProgress (qint64 bytesReceived, qint64 bytesTotal)
{
Q_UNUSED(bytesReceived);
Q_UNUSED(bytesTotal);
//qDebug() << bytesReceived << "/" << bytesTotal;
}
void UBHttpFileDownloader::error ( QNetworkReply::NetworkError code )
{
qDebug() << "UBHttpFileDownloader::error : code=" << code;
mSuccess = mSuccess && (code == QNetworkReply::NoError);
}
void UBHttpFileDownloader::finished ()
{
mCurrentFile->flush();
mCurrentFile->close();
if (mReply)
delete mReply;
downloadNext();
}
void UBHttpFileDownloader::readyRead()
{
mCurrentFile->write(mReply->readAll());
}