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/* Copyright 2013-2015 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "LwjglVersionList.h"
#include "logic/Env.h"
#include <QtNetwork>
#include <QtXml>
#include <QRegExp>
#include <QDebug>
#define RSS_URL "http://sourceforge.net/projects/java-game-lib/rss"
LWJGLVersionList::LWJGLVersionList(QObject *parent) : BaseVersionList(parent)
{
setLoading(false);
}
QVariant LWJGLVersionList::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.row() > count())
return QVariant();
const PtrLWJGLVersion version = m_vlist.at(index.row());
switch (role)
{
case Qt::DisplayRole:
return version->name();
case Qt::ToolTipRole:
return version->url();
default:
return QVariant();
}
}
QVariant LWJGLVersionList::headerData(int section, Qt::Orientation orientation, int role) const
{
switch (role)
{
case Qt::DisplayRole:
return tr("Version");
case Qt::ToolTipRole:
return tr("LWJGL version name.");
default:
return QVariant();
}
}
int LWJGLVersionList::columnCount(const QModelIndex &parent) const
{
return 1;
}
bool LWJGLVersionList::isLoading() const
{
return m_loading;
}
void LWJGLVersionList::loadList()
{
Q_ASSERT_X(!m_loading, "loadList", "list is already loading (m_loading is true)");
setLoading(true);
auto worker = ENV.qnam();
QNetworkRequest req(QUrl(RSS_URL));
req.setRawHeader("Accept", "application/rss+xml, text/xml, */*");
req.setRawHeader("User-Agent", "MultiMC/5.0 (Uncached)");
reply = worker->get(req);
connect(reply, SIGNAL(finished()), SLOT(netRequestComplete()));
}
inline QDomElement getDomElementByTagName(QDomElement parent, QString tagname)
{
QDomNodeList elementList = parent.elementsByTagName(tagname);
if (elementList.count())
return elementList.at(0).toElement();
else
return QDomElement();
}
void LWJGLVersionList::netRequestComplete()
{
if (reply->error() == QNetworkReply::NoError)
{
QRegExp lwjglRegex("lwjgl-(([0-9]\\.?)+)\\.zip");
Q_ASSERT_X(lwjglRegex.isValid(), "load LWJGL list", "LWJGL regex is invalid");
QDomDocument doc;
QString xmlErrorMsg;
int errorLine;
auto rawData = reply->readAll();
if (!doc.setContent(rawData, false, &xmlErrorMsg, &errorLine))
{
failed("Failed to load LWJGL list. XML error: " + xmlErrorMsg + " at line " +
QString::number(errorLine));
setLoading(false);
return;
}
QDomNodeList items = doc.elementsByTagName("item");
QList<PtrLWJGLVersion> tempList;
for (int i = 0; i < items.length(); i++)
{
Q_ASSERT_X(items.at(i).isElement(), "load LWJGL list",
"XML element isn't an element... wat?");
QDomElement linkElement = getDomElementByTagName(items.at(i).toElement(), "link");
if (linkElement.isNull())
{
qDebug() << "Link element" << i << "in RSS feed doesn't exist! Skipping.";
continue;
}
QString link = linkElement.text();
// Make sure it's a download link.
if (link.endsWith("/download") && link.contains(lwjglRegex))
{
QString name = link.mid(lwjglRegex.indexIn(link) + 6);
// Subtract 4 here to remove the .zip file extension.
name = name.left(lwjglRegex.matchedLength() - 10);
QUrl url(link);
if (!url.isValid())
{
qWarning() << "LWJGL version URL isn't valid:" << link << "Skipping.";
continue;
}
qDebug() << "Discovered LWGL version" << name << "at" << link;
tempList.append(std::make_shared<LWJGLVersion>(name, link));
}
}
beginResetModel();
m_vlist.swap(tempList);
endResetModel();
qDebug() << "Loaded LWJGL list.";
finished();
}
else
{
failed("Failed to load LWJGL list. Network error: " + reply->errorString());
}
setLoading(false);
reply->deleteLater();
}
void LWJGLVersionList::failed(QString msg)
{
qCritical() << msg;
emit loadListFailed(msg);
}
void LWJGLVersionList::finished()
{
emit loadListFinished();
}
void LWJGLVersionList::setLoading(bool loading)
{
m_loading = loading;
emit loadingStateUpdated(m_loading);
}
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