MultiMC5/logic/net/ForgeMirrors.cpp

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#include "MultiMC.h"
#include "ForgeMirrors.h"
#include "logger/QsLog.h"
#include <algorithm>
#include <random>
ForgeMirrors::ForgeMirrors(QList<ForgeXzDownloadPtr> &libs, NetJobPtr parent_job,
QString mirrorlist)
{
m_libs = libs;
m_parent_job = parent_job;
m_url = QUrl(mirrorlist);
m_status = Job_NotStarted;
}
void ForgeMirrors::start()
{
QLOG_INFO() << "Downloading " << m_url.toString();
QNetworkRequest request(m_url);
request.setHeader(QNetworkRequest::UserAgentHeader, "MultiMC/5.0 (Uncached)");
auto worker = MMC->qnam();
QNetworkReply *rep = worker->get(request);
m_reply = std::shared_ptr<QNetworkReply>(rep);
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 ForgeMirrors::downloadError(QNetworkReply::NetworkError error)
{
// error happened during download.
QLOG_ERROR() << "Error getting URL:" << m_url.toString().toLocal8Bit()
<< "Network error: " << error;
m_status = Job_Failed;
}
void ForgeMirrors::downloadFinished()
{
// if the download succeeded
if (m_status != Job_Failed)
{
// nothing went wrong... ?
parseMirrorList();
return;
}
// else the download failed, we use a fixed list
else
{
m_status = Job_Finished;
m_reply.reset();
deferToFixedList();
return;
}
}
void ForgeMirrors::deferToFixedList()
{
m_mirrors.clear();
m_mirrors.append(
{"Minecraft Forge", "http://files.minecraftforge.net/forge_logo.png",
"http://files.minecraftforge.net/", "http://files.minecraftforge.net/maven/"});
m_mirrors.append({"Creeper Host",
"http://files.minecraftforge.net/forge_logo.png",
"https://www.creeperhost.net/link.php?id=1",
"http://new.creeperrepo.net/forge/maven/"});
injectDownloads();
emit succeeded(m_index_within_job);
}
void ForgeMirrors::parseMirrorList()
{
m_status = Job_Finished;
auto data = m_reply->readAll();
m_reply.reset();
auto dataLines = data.split('\n');
for(auto line: dataLines)
{
auto elements = line.split('!');
if (elements.size() == 4)
{
m_mirrors.append({elements[0],elements[1],elements[2],elements[3]});
}
}
if(!m_mirrors.size())
deferToFixedList();
injectDownloads();
emit succeeded(m_index_within_job);
}
void ForgeMirrors::injectDownloads()
{
// shuffle the mirrors randomly
std::random_device rd;
std::mt19937 rng(rd());
std::shuffle(m_mirrors.begin(), m_mirrors.end(), rng);
// tell parent to download the libs
for(auto lib: m_libs)
{
lib->setMirrors(m_mirrors);
m_parent_job->addNetAction(lib);
}
}
void ForgeMirrors::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
m_total_progress = bytesTotal;
m_progress = bytesReceived;
emit progress(m_index_within_job, bytesReceived, bytesTotal);
}
void ForgeMirrors::downloadReadyRead()
{
}