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/**************************************************************************
**
** This file is part of Installer Framework**
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).*
**
** Contact: Nokia Corporation qt-info@nokia.com**
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please contact
** (qt-info@nokia.com).
**
**************************************************************************/
#include "repositorymanager.h"
#include <QtCore/QDebug>
#include <QtCore/QFile>
#include <QtCore/QStringList>
#include <QtCore/QUrl>
#include <QtNetwork/QNetworkRequest>
#include <QtNetwork/QNetworkReply>
#include <QtXml/QXmlStreamReader>
#include <QtGui/QMessageBox>
namespace {
qreal createVersionNumber(const QString &text)
{
QStringList items = text.split(QLatin1Char('.'));
QString last = items.takeLast();
items.append(last.split(QLatin1Char('-')));
qreal value = 0;
if (items.count() == 4)
value += qreal(0.01) * items.takeLast().toInt();
int multiplier = 10000;
do {
value += multiplier * items.takeFirst().toInt();
multiplier /= 100;
} while (items.count());
return value;
}
}
RepositoryManager::RepositoryManager(QObject *parent) :
QObject(parent)
{
manager = new QNetworkAccessManager(this);
connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(receiveRepository(QNetworkReply*)));
productionMap.clear();
updateMap.clear();
}
void RepositoryManager::setProductionRepository(const QString &repo)
{
QUrl url(repo);
if (!url.isValid()) {
QMessageBox::critical(0, "Error", "Specified URL is not valid");
return;
}
QNetworkRequest request(url);
productionReply = manager->get(request);
}
void RepositoryManager::setUpdateRepository(const QString &repo)
{
QUrl url(repo);
if (!url.isValid()) {
QMessageBox::critical(0, "Error", "Specified URL is not valid");
return;
}
QNetworkRequest request(url);
updateReply = manager->get(request);
}
void RepositoryManager::receiveRepository(QNetworkReply *reply)
{
QByteArray data = reply->readAll();
if (reply == productionReply) {
createRepositoryMap(data, productionMap);
} else if (reply == updateReply) {
createRepositoryMap(data, updateMap);
}
reply->deleteLater();
if (productionMap.size() && updateMap.size())
compareRepositories();
}
void RepositoryManager::createRepositoryMap(const QByteArray &data, QMap<QString, ComponentDescription> &map)
{
QXmlStreamReader reader(data);
QString currentItem;
ComponentDescription currentDescription;
while (!reader.atEnd()) {
QXmlStreamReader::TokenType type = reader.readNext();
if (type == QXmlStreamReader::StartElement) {
if (reader.name() == "PackageUpdate") {
// new package
if (!currentItem.isEmpty())
map.insert(currentItem, currentDescription);
currentDescription.updateText.clear();
currentDescription.version.clear();
currentDescription.checksum.clear();
}
if (reader.name() == "SHA1")
currentDescription.checksum = reader.readElementText();
else if (reader.name() == "Version")
currentDescription.version = reader.readElementText();
else if (reader.name() == "ReleaseDate")
currentDescription.releaseDate = QDate::fromString(reader.readElementText(), "yyyy-MM-dd");
else if (reader.name() == "UpdateText")
currentDescription.updateText = reader.readElementText();
else if (reader.name() == "Name")
currentItem = reader.readElementText();
}
}
// Insert the last item
if (!currentItem.isEmpty())
map.insert(currentItem, currentDescription);
}
void RepositoryManager::compareRepositories()
{
for (QMap<QString, ComponentDescription>::iterator it = updateMap.begin(); it != updateMap.end(); ++it) {
// New item in the update
if (!productionMap.contains(it.key())) {
it.value().update = true;
continue;
}
it.value().update = updateRequired(it.key());
}
emit repositoriesCompared();
}
bool RepositoryManager::updateRequired(const QString &componentName, QString *message)
{
if (!productionMap.contains(componentName) || !updateMap.contains(componentName))
qFatal("Accessing non existing component");
const ComponentDescription &productionDescription = productionMap.value(componentName);
const ComponentDescription &updateDescription = updateMap.value(componentName);
if (createVersionNumber(productionDescription.version) < createVersionNumber(updateDescription.version)) {
if (productionDescription.releaseDate > updateDescription.releaseDate) {
if (message)
*message = QString::fromLatin1("Error: Component %1 has wrong release date %2").arg(componentName).arg(updateDescription.releaseDate.toString());
return false;
} else if (productionDescription.updateText == updateDescription.updateText)
if (message)
*message = QString::fromLatin1("Warning: Component %1 has no new update text: %2").arg(componentName).arg(updateDescription.updateText);
if (message && message->isEmpty())
*message = QLatin1String("Ok");
return true;
}
return false;
}
void RepositoryManager::writeUpdateFile(const QString &fileName)
{
QFile file(fileName);
if (!file.open(QIODevice::ReadWrite | QIODevice::Truncate)) {
QMessageBox::critical(0, "Error", "Could not open File for saving");
return;
}
QStringList items;
for (QMap<QString, ComponentDescription>::const_iterator it = updateMap.begin(); it != updateMap.end(); ++it) {
if (it.value().update)
items.append(it.key());
}
file.write(items.join(QLatin1String(",")).toLatin1());
file.close();
}
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