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#include "scdlmgr.h"
#include "scdlthread.h"
#include "scpaths.h"
#include <QDebug>
#include <QDir>
#include <QFileInfo>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QUrl>
ScDLThread::ScDLThread(QObject *parent) : QThread(parent),
downloadedCount(0), totalCount(0)
{
connect(this, SIGNAL(runSignal()), this, SLOT(runSlot()));
}
ScDLThread::~ScDLThread()
{
}
void ScDLThread::run()
{
emit(runSignal());
}
void ScDLThread::addURL(const QUrl &url, bool overwrite, const QString& location)
{
qDebug()<<"ScDLThread::addURL:"<<url;
if (!urlOK(url))
return;
QString l(QDir::cleanPath(location));
if (!l.endsWith("/"))
l += "/";
downloadQueue.enqueue(qMakePair(url, l));
++totalCount;
}
void ScDLThread::addURLs(const QStringList &urlList, bool overwrite, const QString& location)
{
qDebug()<<"ScDLThread::addURLs:"<<urlList;
m_urlList=urlList;
QString l(QDir::cleanPath(location));
if (!l.endsWith("/"))
l += "/";
foreach (QString u, m_urlList)
{
QUrl url(u);
if (!urlOK(u))
return;
downloadQueue.enqueue(qMakePair(url, l));
++totalCount;
}
}
void ScDLThread::startDownloads()
{
if (downloadQueue.isEmpty())
{
qDebug()<<"No more downloads left";
emit finished();
return;
}
start();
}
QString ScDLThread::saveFileName(const QUrl &url, const QString& location, bool overwrite)
{
QDir d(location);
QString path = url.path();
QString basename = QFileInfo(path).fileName();
if (location.isEmpty() || !d.exists())
{
if (basename.isEmpty())
basename = "download";
basename = ScPaths::downloadDir() + basename;
}
else
{
basename = location + basename;
}
if (!overwrite && QFile::exists(basename))
{
// already exists, don't overwrite
int i = 0;
basename += '.';
while (QFile::exists(basename + QString::number(i)))
++i;
basename += QString::number(i);
}
return basename;
}
void ScDLThread::startNextDownload()
{
if (downloadQueue.isEmpty())
{
qDebug()<<downloadedCount<<"/"<<totalCount<<"files downloaded successfully";
downloadedCount=totalCount=0;
emit finished();
return;
}
QPair<QUrl, QString> urlPair=downloadQueue.dequeue();
QString filename = saveFileName(urlPair.first, urlPair.second, true);
if (filename.isEmpty())
{
qDebug()<<"File name empty for url:"<<urlPair.first.toEncoded().constData();
return;
}
output.setFileName(filename);
if (!output.open(QIODevice::WriteOnly))
{
qDebug()<<"Problem opening save file '"<<qPrintable(filename)<<"' for download '"
<<urlPair.first.toEncoded().constData()<<"': "<<qPrintable(output.errorString());
startNextDownload();
return;
}
QNetworkRequest request(urlPair.first);
currentDownload = manager.get(request);
connect(currentDownload, SIGNAL(finished()), SLOT(downloadFinished()));
connect(currentDownload, SIGNAL(readyRead()), SLOT(downloadReadyRead()));
qDebug()<<"Downloading:"<<urlPair.first.toEncoded().constData();
}
void ScDLThread::downloadFinished()
{
output.close();
if (currentDownload->error())
qDebug()<<"Failed: "<<qPrintable(currentDownload->errorString());
else
{
printf("Succeeded.\n");
qDebug()<<"Saving file:"<<qPrintable(output.fileName());
++downloadedCount;
}
emit (received(output.fileName()));
currentDownload->deleteLater();
startNextDownload();
}
void ScDLThread::downloadReadyRead()
{
output.write(currentDownload->readAll());
}
void ScDLThread::runSlot()
{
startNextDownload();
}
bool ScDLThread::urlOK(QUrl url)
{
//TODO: Add some more URL checks
if (!url.isValid() || url.isEmpty() || url.host().isEmpty())
{
qDebug()<<"URL invalid:"<<url;
return false;
}
return true;
}
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