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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms and
** conditions see http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "definitiondownloader.h"
#include <utils/fileutils.h>
#include <QLatin1Char>
#include <QEventLoop>
#include <QScopedPointer>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QRegExp>
#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 = Utils::NetworkAccessManager::instance();
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);
const QByteArray data = reply->readAll();
saver.write(data);
m_status = saver.finalize() ? Ok: WriteError;
QString content = QString::fromUtf8(data);
QRegExp reference(QLatin1String("context\\s*=\\s*\"[^\"]*##([^\"]+)\""));
int index = -1;
forever {
index = reference.indexIn(content, index + 1);
if (index == -1)
break;
emit foundReferencedDefinition(reference.cap(1));
}
}
DefinitionDownloader::Status DefinitionDownloader::status() const
{ return m_status; }
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