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#include <QString>
#include <QDebug>
#include <QtXml/QtXml>
#include "OneSixAssets.h"
#include "net/DownloadJob.h"
#include "net/HttpMetaCache.h"
#include "MultiMC.h"
inline QDomElement getDomElementByTagName(QDomElement parent, QString tagname)
{
QDomNodeList elementList = parent.elementsByTagName(tagname);
if (elementList.count())
return elementList.at(0).toElement();
else
return QDomElement();
}
class ThreadedDeleter : public QThread
{
Q_OBJECT
public:
void run()
{
QDirIterator iter ( m_base, QDirIterator::Subdirectories );
int base_length = m_base.length();
while ( iter.hasNext() )
{
QString filename = iter.next();
QFileInfo current ( filename );
// we keep the dirs... whatever
if ( current.isDir() )
continue;
QString trimmedf = filename;
trimmedf.remove ( 0, base_length + 1 );
if ( m_whitelist.contains ( trimmedf ) )
{
// qDebug() << trimmedf << " gets to live";
}
else
{
// DO NOT TOLERATE JUNK
// qDebug() << trimmedf << " dies";
QFile f ( filename );
f.remove();
}
}
}
QString m_base;
QStringList m_whitelist;
};
void OneSixAssets::downloadFinished()
{
deleter = new ThreadedDeleter();
QDir dir("assets");
deleter->m_base = dir.absolutePath();
deleter->m_whitelist = nuke_whitelist;
connect(deleter, SIGNAL(finished()), SIGNAL(finished()));
deleter->start();
}
void OneSixAssets::fetchXMLFinished()
{
QString prefix ( "http://s3.amazonaws.com/Minecraft.Resources/" );
QString fprefix ( "assets/" );
nuke_whitelist.clear();
auto firstJob = index_job->first();
QByteArray ba = firstJob.dynamicCast<ByteArrayDownload>()->m_data;
QString xmlErrorMsg;
QDomDocument doc;
if ( !doc.setContent ( ba, false, &xmlErrorMsg ) )
{
qDebug() << "Failed to process s3.amazonaws.com/Minecraft.Resources. XML error:" << xmlErrorMsg << ba;
}
//QRegExp etag_match(".*([a-f0-9]{32}).*");
QDomNodeList contents = doc.elementsByTagName ( "Contents" );
DownloadJob *job = new DownloadJob("Assets");
connect ( job, SIGNAL(succeeded()), SLOT(downloadFinished()) );
connect ( job, SIGNAL(failed()), SIGNAL(failed()) );
auto metacache = MMC->metacache();
for ( int i = 0; i < contents.length(); i++ )
{
QDomElement element = contents.at ( i ).toElement();
if ( element.isNull() )
continue;
QDomElement keyElement = getDomElementByTagName ( element, "Key" );
QDomElement lastmodElement = getDomElementByTagName ( element, "LastModified" );
QDomElement etagElement = getDomElementByTagName ( element, "ETag" );
QDomElement sizeElement = getDomElementByTagName ( element, "Size" );
if ( keyElement.isNull() || lastmodElement.isNull() || etagElement.isNull() || sizeElement.isNull() )
continue;
QString keyStr = keyElement.text();
QString lastModStr = lastmodElement.text();
QString etagStr = etagElement.text();
QString sizeStr = sizeElement.text();
//Filter folder keys
if ( sizeStr == "0" )
continue;
nuke_whitelist.append ( keyStr );
auto entry = metacache->resolveEntry("assets", keyStr, etagStr);
if(entry->stale)
{
job->add(QUrl(prefix + keyStr), entry);
}
}
if(job->size())
{
files_job.reset ( job );
files_job->start();
}
else
{
delete job;
emit finished();
}
}
void OneSixAssets::start()
{
auto job = new DownloadJob("Assets index");
job->add(QUrl ( "http://s3.amazonaws.com/Minecraft.Resources/" ));
connect ( job, SIGNAL(succeeded()), SLOT ( fetchXMLFinished() ) );
index_job.reset ( job );
job->start();
}
#include "OneSixAssets.moc"
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