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#include <QString>
#include <QDebug>
#include <QtXml/QtXml>
#include "OneSixAssets.h"
#include "net/DownloadJob.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);
QStringList nuke_list;
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;
};
class NukeAndPaveJob: public Job
{
Q_OBJECT
public:
explicit NukeAndPaveJob(QString base, QStringList whitelist)
:Job()
{
QDir dir(base);
deleterThread.m_base = dir.absolutePath();
deleterThread.m_whitelist = whitelist;
};
public slots:
virtual void start()
{
connect(&deleterThread, SIGNAL(finished()), SLOT(threadFinished()));
deleterThread.start();
};
void threadFinished()
{
emit finish();
}
private:
ThreadedDeleter deleterThread;
};
void OneSixAssets::fetchFinished()
{
QString prefix ( "http://s3.amazonaws.com/Minecraft.Resources/" );
QString fprefix ( "assets/" );
QStringList nuke_whitelist;
JobPtr firstJob = index_job->getFirstJob();
auto DlJob = firstJob.dynamicCast<DownloadJob>();
QByteArray ba = DlJob->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" );
JobList *job = new JobList();
connect ( job, SIGNAL ( finished() ), SIGNAL(finished()) );
connect ( job, SIGNAL ( failed() ), SIGNAL(failed()) );
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;
QString filename = fprefix + keyStr;
QFile check_file ( filename );
QString client_etag = "nonsense";
// if there already is a file and md5 checking is in effect and it can be opened
if ( check_file.exists() && check_file.open ( QIODevice::ReadOnly ) )
{
// check the md5 against the expected one
client_etag = QCryptographicHash::hash ( check_file.readAll(), QCryptographicHash::Md5 ).toHex().constData();
check_file.close();
}
QString trimmedEtag = etagStr.remove ( '"' );
nuke_whitelist.append ( keyStr );
if(trimmedEtag != client_etag)
job->add ( DownloadJob::create ( QUrl ( prefix + keyStr ), filename ) );
}
job->add ( JobPtr ( new NukeAndPaveJob ( fprefix, nuke_whitelist ) ) );
files_job.reset ( job );
dl.enqueue ( files_job );
}
void OneSixAssets::fetchStarted()
{
qDebug() << "Started downloading!";
}
void OneSixAssets::start()
{
JobList *job = new JobList();
job->add ( DownloadJob::create ( QUrl ( "http://s3.amazonaws.com/Minecraft.Resources/" ) ) );
connect ( job, SIGNAL ( finished() ), SLOT ( fetchFinished() ) );
connect ( job, SIGNAL ( started() ), SLOT ( fetchStarted() ) );
index_job.reset ( job );
dl.enqueue ( index_job );
}
#include "OneSixAssets.moc"
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