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/* Copyright 2013 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 "MultiMC.h"
#include "OneSixUpdate.h"
#include <QtNetwork>
#include <QFile>
#include <QFileInfo>
#include <QTextStream>
#include <QDataStream>
#include <QDebug>
#include "BaseInstance.h"
#include "lists/MinecraftVersionList.h"
#include "OneSixVersion.h"
#include "OneSixLibrary.h"
#include "OneSixInstance.h"
#include "pathutils.h"
OneSixUpdate::OneSixUpdate(BaseInstance *inst, QObject *parent) : BaseUpdate(inst, parent)
{
}
void OneSixUpdate::executeTask()
{
QString intendedVersion = m_inst->intendedVersionId();
// Make directories
QDir mcDir(m_inst->minecraftRoot());
if (!mcDir.exists() && !mcDir.mkpath("."))
{
emitFailed("Failed to create bin folder.");
return;
}
// Get a pointer to the version object that corresponds to the instance's version.
targetVersion =
MMC->minecraftlist()->findVersion(intendedVersion).dynamicCast<MinecraftVersion>();
if (targetVersion == nullptr)
{
// don't do anything if it was invalid
emitSucceeded();
return;
}
if (m_inst->shouldUpdate())
{
versionFileStart();
}
else
{
jarlibStart();
}
}
void OneSixUpdate::versionFileStart()
{
setStatus("Getting the version files from Mojang.");
QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
urlstr += targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".json";
auto job = new DownloadJob("Version index");
job->add(QUrl(urlstr));
specificVersionDownloadJob.reset(job);
connect(specificVersionDownloadJob.data(), SIGNAL(succeeded()),
SLOT(versionFileFinished()));
connect(specificVersionDownloadJob.data(), SIGNAL(failed()), SLOT(versionFileFailed()));
connect(specificVersionDownloadJob.data(), SIGNAL(progress(qint64, qint64)),
SIGNAL(progress(qint64, qint64)));
specificVersionDownloadJob->start();
}
void OneSixUpdate::versionFileFinished()
{
DownloadPtr DlJob = specificVersionDownloadJob->first();
OneSixInstance *inst = (OneSixInstance *)m_inst;
QString version_id = targetVersion->descriptor();
QString inst_dir = m_inst->instanceRoot();
// save the version file in $instanceId/version.json
{
QString version1 = PathCombine(inst_dir, "/version.json");
ensureFilePathExists(version1);
// FIXME: detect errors here, download to a temp file, swap
QSaveFile vfile1(version1);
if (!vfile1.open(QIODevice::Truncate | QIODevice::WriteOnly))
{
emitFailed("Can't open " + version1 + " for writing.");
return;
}
auto data = DlJob.dynamicCast<ByteArrayDownload>()->m_data;
qint64 actual = 0;
if ((actual = vfile1.write(data)) != data.size())
{
emitFailed("Failed to write into " + version1 + ". Written " + actual + " out of " +
data.size() + '.');
return;
}
if (!vfile1.commit())
{
emitFailed("Can't commit changes to " + version1);
return;
}
}
// the version is downloaded safely. update is 'done' at this point
m_inst->setShouldUpdate(false);
// delete any custom version inside the instance (it's no longer relevant, we did an update)
QString custom = PathCombine(inst_dir, "/custom.json");
QFile finfo(custom);
if (finfo.exists())
{
finfo.remove();
}
inst->reloadFullVersion();
jarlibStart();
}
void OneSixUpdate::versionFileFailed()
{
emitFailed("Failed to download the version description. Try again.");
}
void OneSixUpdate::jarlibStart()
{
OneSixInstance *inst = (OneSixInstance *)m_inst;
bool successful = inst->reloadFullVersion();
if (!successful)
{
emitFailed("Failed to load the version description file (version.json). It might be "
"corrupted, missing or simply too new.");
return;
}
QSharedPointer<OneSixVersion> version = inst->getFullVersion();
// download the right jar, save it in versions/$version/$version.jar
QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
urlstr += version->id + "/" + version->id + ".jar";
QString targetstr("versions/");
targetstr += version->id + "/" + version->id + ".jar";
auto job = new DownloadJob("Libraries for instance " + inst->name());
job->add(QUrl(urlstr), targetstr);
jarlibDownloadJob.reset(job);
auto libs = version->getActiveNativeLibs();
libs.append(version->getActiveNormalLibs());
auto metacache = MMC->metacache();
for (auto lib : libs)
{
QString download_path = lib->downloadUrl();
auto entry = metacache->resolveEntry("libraries", lib->storagePath());
if (entry->stale)
{
jarlibDownloadJob->add(download_path, entry);
}
}
connect(jarlibDownloadJob.data(), SIGNAL(succeeded()), SLOT(jarlibFinished()));
connect(jarlibDownloadJob.data(), SIGNAL(failed()), SLOT(jarlibFailed()));
connect(jarlibDownloadJob.data(), SIGNAL(progress(qint64, qint64)),
SIGNAL(progress(qint64, qint64)));
jarlibDownloadJob->start();
}
void OneSixUpdate::jarlibFinished()
{
emitSucceeded();
}
void OneSixUpdate::jarlibFailed()
{
emitFailed("Failed to download the binary garbage. Try again. Maybe. IF YOU DARE");
}
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