128 lines
3.1 KiB
C++
128 lines
3.1 KiB
C++
#include "include/dlqueue.h"
|
|
|
|
DownloadJob::DownloadJob ( QUrl url, QString target_path, QString expected_md5 )
|
|
:Job()
|
|
{
|
|
m_url = url;
|
|
m_target_path = target_path;
|
|
m_expected_md5 = expected_md5;
|
|
|
|
m_check_md5 = m_expected_md5.size();
|
|
m_save_to_file = m_target_path.size();
|
|
m_status = Job_NotStarted;
|
|
}
|
|
|
|
JobPtr DownloadJob::create ( QUrl url, QString target_path, QString expected_md5 )
|
|
{
|
|
return JobPtr ( new DownloadJob ( url, target_path, expected_md5 ) );
|
|
}
|
|
|
|
bool DownloadJob::ensurePathExists(QString filenamepath)
|
|
{
|
|
QFileInfo a ( filenamepath );
|
|
QDir dir;
|
|
return (dir.mkpath ( a.path() ));
|
|
}
|
|
|
|
void DownloadJob::start()
|
|
{
|
|
m_manager.reset ( new QNetworkAccessManager() );
|
|
if ( m_save_to_file )
|
|
{
|
|
QString filename = m_target_path;
|
|
m_output_file.setFileName ( filename );
|
|
// if there already is a file and md5 checking is in effect and it can be opened
|
|
if ( m_check_md5 && m_output_file.exists() && m_output_file.open ( QIODevice::ReadOnly ) )
|
|
{
|
|
// check the md5 against the expected one
|
|
QString hash = QCryptographicHash::hash ( m_output_file.readAll(), QCryptographicHash::Md5 ).toHex().constData();
|
|
m_output_file.close();
|
|
// skip this file if they match
|
|
if ( hash == m_expected_md5 )
|
|
{
|
|
qDebug() << "Skipping " << m_url.toString() << ": md5 match.";
|
|
emit finish();
|
|
return;
|
|
}
|
|
}
|
|
if(!ensurePathExists(filename))
|
|
{
|
|
emit fail();
|
|
return;
|
|
}
|
|
|
|
if ( !m_output_file.open ( QIODevice::WriteOnly ) )
|
|
{
|
|
/*
|
|
* Can't open the file... the job failed
|
|
*/
|
|
emit fail();
|
|
return;
|
|
}
|
|
}
|
|
qDebug() << "Downloading " << m_url.toString();
|
|
QNetworkRequest request ( m_url );
|
|
QNetworkReply * rep = m_manager->get ( request );
|
|
m_reply = QSharedPointer<QNetworkReply> ( rep, &QObject::deleteLater );
|
|
connect ( rep, SIGNAL ( downloadProgress ( qint64,qint64 ) ), SLOT ( downloadProgress ( qint64,qint64 ) ) );
|
|
connect ( rep, SIGNAL ( finished() ), SLOT ( downloadFinished() ) );
|
|
connect ( rep, SIGNAL ( error ( QNetworkReply::NetworkError ) ), SLOT ( downloadError ( QNetworkReply::NetworkError ) ) );
|
|
connect ( rep, SIGNAL ( readyRead() ), SLOT ( downloadReadyRead() ) );
|
|
}
|
|
|
|
void DownloadJob::downloadProgress ( qint64 bytesReceived, qint64 bytesTotal )
|
|
{
|
|
emit progress ( bytesReceived, bytesTotal );
|
|
}
|
|
|
|
void DownloadJob::downloadError ( QNetworkReply::NetworkError error )
|
|
{
|
|
// error happened during download.
|
|
// TODO: log the reason why
|
|
m_status = Job_Failed;
|
|
}
|
|
|
|
void DownloadJob::downloadFinished()
|
|
{
|
|
// if the download succeeded
|
|
if ( m_status != Job_Failed )
|
|
{
|
|
// nothing went wrong...
|
|
m_status = Job_Finished;
|
|
// save the data to the downloadable if we aren't saving to file
|
|
if ( !m_save_to_file )
|
|
{
|
|
m_data = m_reply->readAll();
|
|
}
|
|
else
|
|
{
|
|
m_output_file.close();
|
|
}
|
|
|
|
//TODO: check md5 here!
|
|
m_reply.clear();
|
|
emit finish();
|
|
return;
|
|
}
|
|
// else the download failed
|
|
else
|
|
{
|
|
if ( m_save_to_file )
|
|
{
|
|
m_output_file.close();
|
|
m_output_file.remove();
|
|
}
|
|
m_reply.clear();
|
|
emit fail();
|
|
return;
|
|
}
|
|
}
|
|
|
|
void DownloadJob::downloadReadyRead()
|
|
{
|
|
if ( m_save_to_file )
|
|
{
|
|
m_output_file.write ( m_reply->readAll() );
|
|
}
|
|
}
|