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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 "gameupdatetask.h"
#include <QtNetwork>
#include <QFile>
#include <QFileInfo>
#include <QTextStream>
#include <QDataStream>
#include <QDebug>
#include "minecraftversionlist.h"
#include "pathutils.h"
#include "netutils.h"
GameUpdateTask::GameUpdateTask(const LoginResponse &response, Instance *inst, QObject *parent) :
Task(parent), m_response(response)
{
m_inst = inst;
m_updateState = StateInit;
m_currentDownload = 0;
}
void GameUpdateTask::executeTask()
{
updateStatus();
QNetworkAccessManager networkMgr;
netMgr = &networkMgr;
// Get a pointer to the version object that corresponds to the instance's version.
MinecraftVersion *targetVersion = (MinecraftVersion *)MinecraftVersionList::getMainList().
findVersion(m_inst->intendedVersion());
Q_ASSERT_X(targetVersion != NULL, "game update", "instance's intended version is not an actual version");
// Make directories
QDir binDir(m_inst->binDir());
if (!binDir.exists() && !binDir.mkpath("."))
{
error("Failed to create bin folder.");
return;
}
/////////////////////////
// BUILD DOWNLOAD LIST //
/////////////////////////
// Build a list of URLs that will need to be downloaded.
setState(StateDetermineURLs);
// Add the URL for minecraft.jar
// This will be either 'minecraft' or the version number, depending on where
// we're downloading from.
QString jarFilename = "minecraft";
if (targetVersion->isForNewLauncher())
jarFilename = targetVersion->descriptor();
QUrl mcJarURL = targetVersion->downloadURL() + jarFilename + ".jar";
qDebug() << mcJarURL.toString();
m_downloadList.append(FileToDownload(mcJarURL, PathCombine(m_inst->minecraftDir(), "bin/minecraft.jar")));
////////////////////
// DOWNLOAD FILES //
////////////////////
setState(StateDownloadFiles);
for (int i = 0; i < m_downloadList.length(); i++)
{
m_currentDownload = i;
if (!downloadFile(m_downloadList[i]))
return;
}
///////////////////
// INSTALL FILES //
///////////////////
setState(StateInstall);
// Nothing to do here yet
//////////////
// FINISHED //
//////////////
setState(StateFinished);
emit gameUpdateComplete(m_response);
}
bool GameUpdateTask::downloadFile(const FileToDownload &file)
{
setSubStatus("Downloading " + file.url().toString());
QNetworkReply *reply = netMgr->get(QNetworkRequest(file.url()));
this->connect(reply, SIGNAL(downloadProgress(qint64,qint64)),
SLOT(updateDownloadProgress(qint64,qint64)));
NetUtils::waitForNetRequest(reply);
if (reply->error() == QNetworkReply::NoError)
{
QFile outFile = file.path();
if (outFile.exists() && !outFile.remove())
{
error("Can't delete old file " + file.path() + ": " + outFile.errorString());
return false;
}
if (!outFile.open(QIODevice::WriteOnly))
{
error("Can't write to " + file.path() + ": " + outFile.errorString());
return false;
}
outFile.write(reply->readAll());
outFile.close();
}
else
{
error("Can't download " + file.url().toString() + ": " + reply->errorString());
return false;
}
// TODO: Check file integrity after downloading.
return true;
}
int GameUpdateTask::state() const
{
return m_updateState;
}
void GameUpdateTask::setState(int state, bool resetSubStatus)
{
m_updateState = state;
if (resetSubStatus)
setSubStatus("");
else // We only need to update if we're not resetting substatus becasue setSubStatus updates status for us.
updateStatus();
}
QString GameUpdateTask::subStatus() const
{
return m_subStatusMsg;
}
void GameUpdateTask::setSubStatus(const QString &msg)
{
m_subStatusMsg = msg;
updateStatus();
}
QString GameUpdateTask::getStateMessage(int state)
{
switch (state)
{
case StateInit:
return "Initializing";
case StateDetermineURLs:
return "Determining files to download";
case StateDownloadFiles:
return "Downloading files";
case StateInstall:
return "Installing";
case StateFinished:
return "Finished";
default:
return "Downloading instance files";
}
}
void GameUpdateTask::updateStatus()
{
QString newStatus;
newStatus = getStateMessage(state());
if (!subStatus().isEmpty())
newStatus += ": " + subStatus();
else
newStatus += "...";
setStatus(newStatus);
}
void GameUpdateTask::error(const QString &msg)
{
emit gameUpdateError(msg);
}
void GameUpdateTask::updateDownloadProgress(qint64 current, qint64 total)
{
// The progress on the current file is current / total
float currentDLProgress = (float) current / (float) total; // Cast ALL the values!
// The overall progress is (current progress + files downloaded) / total files to download
float overallDLProgress = ((currentDLProgress + m_currentDownload) / (float) m_downloadList.length());
// Multiply by 100 to make it a percentage.
setProgress((int)(overallDLProgress * 100));
}
FileToDownload::FileToDownload(const QUrl &url, const QString &path, QObject *parent) :
QObject(parent), m_dlURL(url), m_dlPath(path)
{
}
FileToDownload::FileToDownload(const FileToDownload &other) :
QObject(other.parent()), m_dlURL(other.m_dlURL), m_dlPath(other.m_dlPath)
{
}
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