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#include "StdInc.h"
#include "cdownloadmanager_moc.h"
#include "../launcherdirs.h"
CDownloadManager::CDownloadManager()
{
connect(&manager, SIGNAL(finished(QNetworkReply*)),
SLOT(downloadFinished(QNetworkReply*)));
}
void CDownloadManager::downloadFile(const QUrl &url, const QString &file)
{
QNetworkRequest request(url);
FileEntry entry;
entry.file.reset(new QFile(CLauncherDirs::get().downloadsPath() + '/' + file));
entry.bytesReceived = 0;
entry.totalSize = 0;
if (entry.file->open(QIODevice::WriteOnly | QIODevice::Truncate))
{
entry.status = FileEntry::IN_PROGRESS;
entry.reply = manager.get(request);
connect(entry.reply, SIGNAL(downloadProgress(qint64, qint64)),
SLOT(downloadProgressChanged(qint64, qint64)));
}
else
{
entry.status = FileEntry::FAILED;
entry.reply = nullptr;
encounteredErrors += entry.file->errorString();
}
// even if failed - add it into list to report it in finished() call
currentDownloads.push_back(entry);
}
CDownloadManager::FileEntry & CDownloadManager::getEntry(QNetworkReply * reply)
{
assert(reply);
for (auto & entry : currentDownloads)
{
if (entry.reply == reply)
return entry;
}
assert(0);
static FileEntry errorValue;
return errorValue;
}
void CDownloadManager::downloadFinished(QNetworkReply *reply)
{
FileEntry & file = getEntry(reply);
if (file.reply->error())
{
encounteredErrors += file.reply->errorString();
file.file->remove();
file.status = FileEntry::FAILED;
}
else
{
file.file->write(file.reply->readAll());
file.file->close();
file.status = FileEntry::FINISHED;
}
bool downloadComplete = true;
for (auto & entry : currentDownloads)
{
if (entry.status == FileEntry::IN_PROGRESS)
{
downloadComplete = false;
break;
}
}
QStringList successful;
QStringList failed;
for (auto & entry : currentDownloads)
{
if (entry.status == FileEntry::FINISHED)
successful += entry.file->fileName();
else
failed += entry.file->fileName();
}
if (downloadComplete)
emit finished(successful, failed, encounteredErrors);
file.reply->deleteLater();
file.reply = nullptr;
}
void CDownloadManager::downloadProgressChanged(qint64 bytesReceived, qint64 bytesTotal)
{
auto reply = dynamic_cast<QNetworkReply *>(sender());
FileEntry & entry = getEntry(reply);
entry.file->write(entry.reply->readAll());
entry.bytesReceived = bytesReceived;
entry.totalSize = bytesTotal;
quint64 total = 0;
for (auto & entry : currentDownloads)
total += entry.totalSize > 0 ? entry.totalSize : 0;
quint64 received = 0;
for (auto & entry : currentDownloads)
received += entry.bytesReceived > 0 ? entry.bytesReceived : 0;
emit downloadProgress(received, total);
}
bool CDownloadManager::downloadInProgress(const QUrl &url)
{
for (auto & entry : currentDownloads)
{
if (entry.reply->url() == url)
return true;
}
return false;
}
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