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/***************************************************************************
* *
* This file is part of the Fotowall project, *
* http://www.enricoros.com/opensource/fotowall *
* *
* Copyright (C) 2009 by Enrico Ros <enrico.ros@gmail.com> *
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "MetaXmlReader.h"
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QTimer>
#include <QUrl>
#define METAXML_BASE_URL "http://www.enricoros.com/opensource/fotowall/.meta"
#define NETWORK_TIMEOUT 10000
/* pre-0.8.0 used this settings:
#define OLD_CHECK_URL "http://code.google.com/p/fotowall/"
#define OLD_MAGIC_TOKEN "Last version is "
#define OLD_DOWNLOADS_URL "http://code.google.com/p/fotowall/downloads/list"
*/
using namespace MetaXml;
Reader_1::Reader_1(const QByteArray & data)
: QXmlStreamReader(data)
{
read();
}
void Reader_1::read()
{
while (!atEnd()) {
readNext();
if (isEndElement())
break;
if (isStartElement()) {
if (name() == QLatin1String("fotowall-meta"))
continue;
else if (name() == QLatin1String("releases"))
readReleases();
else if (name() == QLatin1String("websites"))
readWebsites();
else
readElementText();
}
}
}
void Reader_1::readReleases()
{
releases.clear();
while (!atEnd()) {
readNext();
if (isEndElement())
break;
if (isStartElement()) {
if (name() == QLatin1String("release"))
releases.append(readRelease());
else
readElementText();
}
}
}
Release Reader_1::readRelease()
{
Release r;
r.name = attributes().value("name").toString();
while (!atEnd()) {
readNext();
if (isEndElement())
break;
if (isStartElement()) {
if (name() == QLatin1String("version"))
r.version = readElementText();
else if (name() == QLatin1String("download-url"))
r.url = readElementText();
else
readElementText();
}
}
return r;
}
void Reader_1::readWebsites()
{
websites.clear();
while (!atEnd()) {
readNext();
if (isEndElement())
break;
if (isStartElement()) {
if (name() == QLatin1String("homepage") || name() == QLatin1String("blog") || name() == QLatin1String("site")) {
Website w;
w.name = attributes().value("name").toString();
w.url = readElementText();
if (name() == QLatin1String("homepage"))
w.type = Website::HomePage;
else if (name() == QLatin1String("blog") || w.name.contains("blog", Qt::CaseInsensitive))
w.type = Website::Blog;
else
w.type = Website::Other;
if (name() == QLatin1String("homepage"))
websites.prepend(w);
else
websites.append(w);
} else
readElementText();
}
}
}
/* Connector */
Q_GLOBAL_STATIC(Connector, connectorInstance);
Connector * Connector::instance()
{
return connectorInstance();
}
Connector::Connector()
: m_nam(new QNetworkAccessManager)
, m_reader(0)
{
QNetworkRequest request(QUrl(METAXML_BASE_URL));
QNetworkReply * reply = m_nam->get(request);
connect(reply, SIGNAL(finished()), this, SLOT(slotGotReply()));
QTimer::singleShot(NETWORK_TIMEOUT, this, SLOT(slotTimeOut()));
}
bool Connector::hasDone() const
{
return !m_nam;
}
bool Connector::isValid() const
{
return m_reader;
}
const Reader_1 * Connector::reader() const
{
return m_reader;
}
void Connector::slotGotReply()
{
// dispose the QNAM
if (!m_nam)
return;
m_nam->deleteLater();
m_nam = 0;
// get the data from the network reply
QNetworkReply * reply = static_cast<QNetworkReply *>(sender());
QByteArray replyData = reply->readAll();
QNetworkReply::NetworkError error = reply->error();
reply->deleteLater();
if (error != QNetworkReply::NoError) {
emit fetchError(tr("Network Error"));
return;
}
// parse the data and notify the completion
delete m_reader;
m_reader = new Reader_1(replyData);
emit fetched();
}
void Connector::slotTimeOut()
{
// dispose the QNAM
if (!m_nam)
return;
m_nam->deleteLater();
m_nam = 0;
// emit the error signal
emit fetchError(tr("Network Timeout"));
}
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