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/* Copyright 2013-2018 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "DownloadTask.h"
#include "updater/UpdateChecker.h"
#include "GoUpdate.h"
#include "net/NetJob.h"
#include <QFile>
#include <QTemporaryDir>
#include <QCryptographicHash>
namespace GoUpdate
{
DownloadTask::DownloadTask(Status status, QString target, QObject *parent)
: Task(parent), m_updateFilesDir(target)
{
m_status = status;
m_updateFilesDir.setAutoRemove(false);
}
void DownloadTask::executeTask()
{
loadVersionInfo();
}
void DownloadTask::loadVersionInfo()
{
setStatus(tr("Loading version information..."));
NetJob *netJob = new NetJob("Version Info");
// Find the index URL.
QUrl newIndexUrl = QUrl(m_status.newRepoUrl).resolved(QString::number(m_status.newVersionId) + ".json");
qDebug() << m_status.newRepoUrl << " turns into " << newIndexUrl;
netJob->addNetAction(m_newVersionFileListDownload = Net::Download::makeByteArray(newIndexUrl, &newVersionFileListData));
// If we have a current version URL, get that one too.
if (!m_status.currentRepoUrl.isEmpty())
{
QUrl cIndexUrl = QUrl(m_status.currentRepoUrl).resolved(QString::number(m_status.currentVersionId) + ".json");
netJob->addNetAction(m_currentVersionFileListDownload = Net::Download::makeByteArray(cIndexUrl, ¤tVersionFileListData));
qDebug() << m_status.currentRepoUrl << " turns into " << cIndexUrl;
}
// connect signals and start the job
connect(netJob, &NetJob::succeeded, this, &DownloadTask::processDownloadedVersionInfo);
connect(netJob, &NetJob::failed, this, &DownloadTask::vinfoDownloadFailed);
m_vinfoNetJob.reset(netJob);
netJob->start();
}
void DownloadTask::vinfoDownloadFailed()
{
// Something failed. We really need the second download (current version info), so parse
// downloads anyways as long as the first one succeeded.
if (m_newVersionFileListDownload->wasSuccessful())
{
processDownloadedVersionInfo();
return;
}
// TODO: Give a more detailed error message.
qCritical() << "Failed to download version info files.";
emitFailed(tr("Failed to download version info files."));
}
void DownloadTask::processDownloadedVersionInfo()
{
VersionFileList m_currentVersionFileList;
VersionFileList m_newVersionFileList;
setStatus(tr("Reading file list for new version..."));
qDebug() << "Reading file list for new version...";
QString error;
if (!parseVersionInfo(newVersionFileListData, m_newVersionFileList, error))
{
qCritical() << error;
emitFailed(error);
return;
}
// if we have the current version info, use it.
if (m_currentVersionFileListDownload && m_currentVersionFileListDownload->wasSuccessful())
{
setStatus(tr("Reading file list for current version..."));
qDebug() << "Reading file list for current version...";
// if this fails, it's not a complete loss.
QString error;
if(!parseVersionInfo( currentVersionFileListData, m_currentVersionFileList, error))
{
qDebug() << error << "This is not a fatal error.";
}
}
// We don't need this any more.
m_currentVersionFileListDownload.reset();
m_newVersionFileListDownload.reset();
m_vinfoNetJob.reset();
setStatus(tr("Processing file lists - figuring out how to install the update..."));
// make a new netjob for the actual update files
NetJobPtr netJob (new NetJob("Update Files"));
// fill netJob and operationList
if (!processFileLists(m_currentVersionFileList, m_newVersionFileList, m_status.rootPath, m_updateFilesDir.path(), netJob, m_operations))
{
emitFailed(tr("Failed to process update lists..."));
return;
}
// Now start the download.
QObject::connect(netJob.get(), &NetJob::succeeded, this, &DownloadTask::fileDownloadFinished);
QObject::connect(netJob.get(), &NetJob::progress, this, &DownloadTask::fileDownloadProgressChanged);
QObject::connect(netJob.get(), &NetJob::failed, this, &DownloadTask::fileDownloadFailed);
setStatus(tr("Downloading %1 update files.").arg(QString::number(netJob->size())));
qDebug() << "Begin downloading update files to" << m_updateFilesDir.path();
m_filesNetJob = netJob;
m_filesNetJob->start();
}
void DownloadTask::fileDownloadFinished()
{
emitSucceeded();
}
void DownloadTask::fileDownloadFailed(QString reason)
{
qCritical() << "Failed to download update files:" << reason;
emitFailed(tr("Failed to download update files: %1").arg(reason));
}
void DownloadTask::fileDownloadProgressChanged(qint64 current, qint64 total)
{
setProgress(current, total);
}
QString DownloadTask::updateFilesDir()
{
return m_updateFilesDir.path();
}
OperationList DownloadTask::operations()
{
return m_operations;
}
}
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