From 005a010ee6a67191ec24583780310fcf217ff30c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Sun, 4 Aug 2013 14:46:33 +0200
Subject: More code cleanups!

---
 backend/OneSixUpdate.cpp | 140 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 backend/OneSixUpdate.cpp

(limited to 'backend/OneSixUpdate.cpp')

diff --git a/backend/OneSixUpdate.cpp b/backend/OneSixUpdate.cpp
new file mode 100644
index 00000000..a344662c
--- /dev/null
+++ b/backend/OneSixUpdate.cpp
@@ -0,0 +1,140 @@
+/* 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 "OneSixUpdate.h"
+
+#include <QtNetwork>
+
+#include <QFile>
+#include <QFileInfo>
+#include <QTextStream>
+#include <QDataStream>
+
+#include <QDebug>
+
+#include "BaseInstance.h"
+#include "lists/MinecraftVersionList.h"
+#include "VersionFactory.h"
+#include "OneSixVersion.h"
+
+#include "pathutils.h"
+
+
+OneSixUpdate::OneSixUpdate(BaseInstance *inst, QObject *parent) :
+	Task(parent)
+{
+	m_inst = inst;
+}
+
+void OneSixUpdate::executeTask()
+{
+	// Get a pointer to the version object that corresponds to the instance's version.
+	targetVersion = (MinecraftVersion *)MinecraftVersionList::getMainList().findVersion(m_inst->intendedVersionId());
+	if(targetVersion == NULL)
+	{
+		emit gameUpdateComplete();
+		return;
+	}
+	
+	setStatus("Getting the version files from Mojang.");
+	
+	QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
+	urlstr += targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".json";
+	auto dljob = DownloadJob::create(QUrl(urlstr));
+	specificVersionDownloadJob.reset(new JobList());
+	specificVersionDownloadJob->add(dljob);
+	connect(specificVersionDownloadJob.data(), SIGNAL(finished()), SLOT(versionFileFinished()));
+	connect(specificVersionDownloadJob.data(), SIGNAL(failed()), SLOT(versionFileFailed()));
+	connect(specificVersionDownloadJob.data(), SIGNAL(progress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
+	download_queue.enqueue(specificVersionDownloadJob);
+	
+	QEventLoop loop;
+	loop.exec();
+}
+
+void OneSixUpdate::versionFileFinished()
+{
+	JobPtr firstJob = specificVersionDownloadJob->getFirstJob();
+	auto DlJob = firstJob.dynamicCast<DownloadJob>();
+	FullVersionFactory parser;
+	auto version = parser.parse(DlJob->m_data);
+	
+	if(!version)
+	{
+		error(parser.error_string);
+		exit(0);
+	}
+	
+	// save the version file in $instanceId/version.json and versions/$version/$version.json
+	QString version_id = targetVersion->descriptor();
+	QString inst_dir = m_inst->rootDir();
+	QString version1 =  PathCombine(inst_dir, "/version.json");
+	QString version2 =  QString("versions/") + version_id + "/" + version_id + ".json";
+	DownloadJob::ensurePathExists(version1);
+	DownloadJob::ensurePathExists(version2);
+	QFile  vfile1 (version1);
+	QFile  vfile2 (version2);
+	vfile1.open(QIODevice::Truncate | QIODevice::WriteOnly );
+	vfile2.open(QIODevice::Truncate | QIODevice::WriteOnly );
+	vfile1.write(DlJob->m_data);
+	vfile2.write(DlJob->m_data);
+	vfile1.close();
+	vfile2.close();
+	
+	// download the right jar, save it in versions/$version/$version.jar
+	QString urlstr("http://s3.amazonaws.com/Minecraft.Download/versions/");
+	urlstr += targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".jar";
+	QString targetstr ("versions/");
+	targetstr += targetVersion->descriptor() + "/" + targetVersion->descriptor() + ".jar";
+	auto dljob = DownloadJob::create(QUrl(urlstr), targetstr);
+	
+	jarlibDownloadJob.reset(new JobList());
+	jarlibDownloadJob->add(dljob);
+	connect(jarlibDownloadJob.data(), SIGNAL(finished()), SLOT(jarlibFinished()));
+	connect(jarlibDownloadJob.data(), SIGNAL(failed()), SLOT(jarlibFailed()));
+	connect(jarlibDownloadJob.data(), SIGNAL(progress(qint64,qint64)), SLOT(updateDownloadProgress(qint64,qint64)));
+	// determine and download all the libraries, save them in libraries/whatever...
+	download_queue.enqueue(jarlibDownloadJob);
+}
+
+void OneSixUpdate::jarlibFinished()
+{
+	exit(1);
+}
+
+void OneSixUpdate::jarlibFailed()
+{
+	error("Failed to download the binary garbage. Try again. Maybe. IF YOU DARE");
+	exit(0);
+}
+
+void OneSixUpdate::versionFileFailed()
+{
+	error("Failed to download the version description. Try again.");
+	exit(0);
+}
+
+void OneSixUpdate::error(const QString &msg)
+{
+	emit gameUpdateError(msg);
+}
+
+void OneSixUpdate::updateDownloadProgress(qint64 current, qint64 total)
+{
+	// The progress on the current file is current / total
+	float currentDLProgress = (float) current / (float) total;
+	setProgress((int)(currentDLProgress * 100)); // convert to percentage
+}
+
-- 
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