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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**************************************************************************/
#include "definitiondownloader.h"
#include <utils/fileutils.h>
#include <QLatin1Char>
#include <QEventLoop>
#include <QFile>
#include <QScopedPointer>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <utils/networkaccessmanager.h>
using namespace TextEditor;
using namespace Internal;
DefinitionDownloader::DefinitionDownloader(const QUrl &url, const QString &localPath) :
m_url(url), m_localPath(localPath), m_status(Unknown)
{}
void DefinitionDownloader::run()
{
Utils::NetworkAccessManager manager;
int currentAttempt = 0;
const int maxAttempts = 5;
while (currentAttempt < maxAttempts) {
QScopedPointer<QNetworkReply> reply(getData(&manager));
if (reply->error() != QNetworkReply::NoError) {
m_status = NetworkError;
return;
}
++currentAttempt;
QVariant variant = reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
if (variant.isValid() && currentAttempt < maxAttempts) {
m_url = variant.toUrl();
} else if (!variant.isValid()) {
saveData(reply.data());
return;
}
}
}
QNetworkReply *DefinitionDownloader::getData(QNetworkAccessManager *manager) const
{
QNetworkRequest request(m_url);
QNetworkReply *reply = manager->get(request);
QEventLoop eventLoop;
connect(reply, SIGNAL(finished()), &eventLoop, SLOT(quit()));
eventLoop.exec();
return reply;
}
void DefinitionDownloader::saveData(QNetworkReply *reply)
{
const QString &urlPath = m_url.path();
const QString &fileName =
urlPath.right(urlPath.length() - urlPath.lastIndexOf(QLatin1Char('/')) - 1);
Utils::FileSaver saver(m_localPath + fileName, QIODevice::Text);
saver.write(reply->readAll());
m_status = saver.finalize() ? Ok: WriteError;
}
DefinitionDownloader::Status DefinitionDownloader::status() const
{ return m_status; }
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