pollymc/logic/OneSixUpdate.cpp

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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"
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#include "OneSixUpdate.h"
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#include <QtNetwork>
#include <QFile>
#include <QFileInfo>
#include <QTextStream>
#include <QDataStream>
#include <QDebug>
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#include "BaseInstance.h"
#include "lists/MinecraftVersionList.h"
#include "VersionFactory.h"
#include "OneSixVersion.h"
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#include "OneSixInstance.h"
#include "pathutils.h"
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OneSixUpdate::OneSixUpdate(BaseInstance *inst, QObject *parent):BaseUpdate(inst, parent){}
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void OneSixUpdate::executeTask()
{
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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 = MinecraftVersionList::getMainList().findVersion(intendedVersion).dynamicCast<MinecraftVersion>();
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if(targetVersion == nullptr)
{
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// don't do anything if it was invalid
emitSucceeded();
return;
}
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if(m_inst->shouldUpdate())
{
versionFileStart();
}
else
{
jarlibStart();
}
}
void OneSixUpdate::versionFileStart()
{
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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);
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connect(specificVersionDownloadJob.data(), SIGNAL(succeeded()), SLOT(versionFileFinished()));
connect(specificVersionDownloadJob.data(), SIGNAL(failed()), SLOT(versionFileFailed()));
connect(specificVersionDownloadJob.data(), SIGNAL(progress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
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specificVersionDownloadJob->start();
}
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void OneSixUpdate::versionFileFinished()
{
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DownloadPtr DlJob = specificVersionDownloadJob->first();
QString version_id = targetVersion->descriptor;
QString inst_dir = m_inst->instanceRoot();
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// save the version file in $instanceId/version.json
{
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QString version1 = PathCombine(inst_dir, "/version.json");
ensureFilePathExists(version1);
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// FIXME: detect errors here, download to a temp file, swap
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QFile vfile1 (version1);
vfile1.open(QIODevice::Truncate | QIODevice::WriteOnly );
vfile1.write(DlJob.dynamicCast<ByteArrayDownload>()->m_data);
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vfile1.close();
}
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// the version is downloaded safely. update is 'done' at this point
m_inst->setShouldUpdate(false);
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// save the version file in versions/$version/$version.json
/*
//QString version2 = QString("versions/") + version_id + "/" + version_id + ".json";
//ensurePathExists(version2);
//QFile vfile2 (version2);
//vfile2.open(QIODevice::Truncate | QIODevice::WriteOnly );
//vfile2.write(DlJob->m_data);
//vfile2.close();
*/
jarlibStart();
}
void OneSixUpdate::versionFileFailed()
{
emitFailed("Failed to download the version description. Try again.");
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}
void OneSixUpdate::jarlibStart()
{
OneSixInstance * inst = (OneSixInstance *) m_inst;
bool successful = inst->reloadFullVersion();
if(!successful)
{
emitFailed("Failed to load the version description file (version.json). It might be corrupted, missing or simply too new.");
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return;
}
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QSharedPointer<OneSixVersion> version = inst->getFullVersion();
// download the right jar, save it in versions/$version/$version.jar
QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
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urlstr += version->id + "/" + version->id + ".jar";
QString targetstr ("versions/");
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targetstr += version->id + "/" + version->id + ".jar";
auto job = new DownloadJob("Libraries for instance " + inst->name());
job->add(QUrl(urlstr), targetstr);
jarlibDownloadJob.reset(job);
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auto libs = version->getActiveNativeLibs();
libs.append(version->getActiveNormalLibs());
auto metacache = MMC->metacache();
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for(auto lib: libs)
{
QString download_path = lib->downloadPath();
auto entry = metacache->resolveEntry("libraries", lib->storagePath());
if(entry->stale)
{
jarlibDownloadJob->add(download_path, entry);
}
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}
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connect(jarlibDownloadJob.data(), SIGNAL(succeeded()), SLOT(jarlibFinished()));
connect(jarlibDownloadJob.data(), SIGNAL(failed()), SLOT(jarlibFailed()));
connect(jarlibDownloadJob.data(), SIGNAL(progress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
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jarlibDownloadJob->start();
}
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void OneSixUpdate::jarlibFinished()
{
emitSucceeded();
}
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void OneSixUpdate::jarlibFailed()
{
emitFailed("Failed to download the binary garbage. Try again. Maybe. IF YOU DARE");
}