510 lines
13 KiB
C++
510 lines
13 KiB
C++
/* Copyright 2013 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "stdinstversionlist.h"
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#include <QNetworkAccessManager>
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#include <QNetworkRequest>
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#include <QNetworkReply>
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#include <QtXml/QDomDocument>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QJsonArray>
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#include <QJsonParseError>
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#include <QDateTime>
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#include <QMap>
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#include <QMapIterator>
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#include <QStringList>
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#include <QUrl>
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#include <QRegExp>
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#include <QDebug>
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#include <instversion.h>
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#include "stdinstversion.h"
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#define MCDL_URLBASE "http://assets.minecraft.net/"
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#define ASSETS_URLBASE "http://s3.amazonaws.com/MinecraftDownload/"
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#define MCN_URLBASE "http://sonicrules.org/mcnweb.py"
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// When this is defined, prints the entire version list to qDebug() after loading.
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#define PRINT_VERSIONS
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StdInstVersionList vList;
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StdInstVersionList::StdInstVersionList(QObject *parent) :
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InstVersionList(parent)
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{
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loaded = false;
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}
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Task *StdInstVersionList::getLoadTask()
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{
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return new StdInstVListLoadTask(this);
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}
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bool StdInstVersionList::isLoaded()
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{
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return loaded;
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}
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const InstVersion *StdInstVersionList::at(int i) const
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{
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return m_vlist.at(i);
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}
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int StdInstVersionList::count() const
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{
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return m_vlist.count();
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}
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void StdInstVersionList::printToStdOut()
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{
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qDebug() << "---------------- Version List ----------------";
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for (int i = 0; i < m_vlist.count(); i++)
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{
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StdInstVersion *version = qobject_cast<StdInstVersion *>(m_vlist.at(i));
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if (!version)
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continue;
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qDebug() << "Version " << version->name();
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qDebug() << "\tDownload: " << version->downloadURL();
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qDebug() << "\tTimestamp: " << version->timestamp();
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qDebug() << "\tType: " << version->type();
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qDebug() << "----------------------------------------------";
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}
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}
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StdInstVListLoadTask::StdInstVListLoadTask(StdInstVersionList *vlist) :
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Task(vlist)
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{
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m_list = vlist;
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processedMCDLReply = false;
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processedAssetsReply = false;
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processedMCNReply = false;
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currentStable = NULL;
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foundCurrentInAssets = false;
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}
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void StdInstVListLoadTask::executeTask()
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{
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setSubStatus();
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// Initialize the network access manager.
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QNetworkAccessManager netMgr;
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mcdlReply = netMgr.get(QNetworkRequest(QUrl(ASSETS_URLBASE)));
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assetsReply = netMgr.get(QNetworkRequest(QUrl(MCDL_URLBASE)));
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mcnReply = netMgr.get(QNetworkRequest(QUrl(QString(MCN_URLBASE) + "?pversion=1&list=True")));
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connect(mcdlReply, SIGNAL(finished()),
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SLOT(processMCDLReply()));
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connect(mcnReply, SIGNAL(finished()),
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SLOT(processMCNReply()));
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exec();
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finalize();
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}
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void StdInstVListLoadTask::finalize()
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{
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// First, we need to do some cleanup. We loaded MCNostalgia versions into
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// mcnList and all the others into tempList. MCNostalgia provides some versions
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// that are on assets.minecraft.net and we want to ignore those, so we remove
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// and delete them from mcnList.
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// To start, we get a list of the descriptors in tmpList.
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QStringList tlistDescriptors;
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for (int i = 0; i < tempList.count(); i++)
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tlistDescriptors.append(tempList.at(i)->descriptor());
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// Now, we go through our MCNostalgia version list and remove anything with
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// a descriptor that matches one we already have in tempList.
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// We'll need a list of items we're going to remove.
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for (int i = 0; i < mcnList.count(); i++)
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if (tlistDescriptors.contains(mcnList.at(i)->descriptor()))
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delete mcnList.takeAt(i--); // We need to decrement here because we're removing an item.
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// Now that the duplicates are gone, we need to merge the two lists. This is
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// simple enough.
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tempList.append(mcnList);
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// We're done with mcnList now, but the items have been moved over to
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// tempList, so we don't need to delete them.
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// Now we swap the list we loaded into the actual version list.
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// This applies our changes to the version list immediately and still gives us
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// access to the old list so that we can delete the objects in it and free their memory.
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// By doing this, we cause the version list to update immediately.
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m_list->m_vlist.swap(tempList);
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// We called swap, so all the data that was in the version list previously is now in
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// tempList (and vice-versa). Now we just free the memory.
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while (!tempList.isEmpty())
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delete tempList.takeFirst();
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#ifdef PRINT_VERSIONS
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m_list->printToStdOut();
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#endif
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}
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inline QDomElement getDomElementByTagName(QDomElement parent, QString tagname)
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{
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QDomNodeList elementList = parent.elementsByTagName(tagname);
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if (elementList.count())
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return elementList.at(0).toElement();
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else
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return QDomElement();
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}
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inline QDateTime timeFromS3Time(QString str)
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{
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const QString fmt("yyyy-MM-dd'T'HH:mm:ss'.000Z'");
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return QDateTime::fromString(str, fmt);
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}
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void StdInstVListLoadTask::processMCDLReply()
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{
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switch (mcdlReply->error())
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{
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case QNetworkReply::NoError:
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{
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// Get the XML string.
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QString xmlString = mcdlReply->readAll();
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QString xmlErrorMsg;
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QDomDocument doc;
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if (!doc.setContent(xmlString, false, &xmlErrorMsg))
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{
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// TODO: Display error message to the user.
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qDebug(QString("Failed to process Minecraft download site. XML error: %s").
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arg(xmlErrorMsg).toUtf8());
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}
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QDomNodeList contents = doc.elementsByTagName("Contents");
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for (int i = 0; i < contents.length(); i++)
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{
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QDomElement element = contents.at(i).toElement();
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if (element.isNull())
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continue;
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QDomElement keyElement = getDomElementByTagName(element, "Key");
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QDomElement lastmodElement = getDomElementByTagName(element, "LastModified");
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QDomElement etagElement = getDomElementByTagName(element, "ETag");
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if (keyElement.isNull() || lastmodElement.isNull() || etagElement.isNull())
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continue;
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QString key = keyElement.text();
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QString lastModStr = lastmodElement.text();
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QString etagStr = etagElement.text();
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QString dlUrl = "http://s3.amazonaws.com/MinecraftDownload/";
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if (key != "minecraft.jar")
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continue;
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QDateTime versionTimestamp = timeFromS3Time(lastModStr);
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if (!versionTimestamp.isValid())
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{
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qDebug(QString("Failed to parse timestamp for current stable version %1").
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arg(lastModStr).toUtf8());
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versionTimestamp = QDateTime::currentDateTime();
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}
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currentStable = new StdInstVersion("LatestStable", "Current",
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versionTimestamp.toMSecsSinceEpoch(),
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"http://s3.amazonaws.com/MinecraftDownload/",
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true, etagStr, m_list);
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setSubStatus("Loaded latest version info.");
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}
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break;
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}
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default:
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// TODO: Network error handling.
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break;
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}
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if (!currentStable)
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qDebug("Failed to get current stable version.");
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processedMCDLReply = true;
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updateStuff();
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// If the assets request isn't finished yet, connect the slot to allow it
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// to process when the request is done. Otherwise, simply call the
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// processAssetsReply slot directly.
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if (!assetsReply->isFinished())
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connect(assetsReply, SIGNAL(finished()),
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SLOT(processAssetsReply()));
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else if (!processedAssetsReply)
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processAssetsReply();
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}
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void StdInstVListLoadTask::processAssetsReply()
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{
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switch (assetsReply->error())
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{
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case QNetworkReply::NoError:
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{
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// Get the XML string.
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QString xmlString = assetsReply->readAll();
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QString xmlErrorMsg;
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QDomDocument doc;
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if (!doc.setContent(xmlString, false, &xmlErrorMsg))
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{
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// TODO: Display error message to the user.
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qDebug(QString("Failed to process assets.minecraft.net. XML error: %s").
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arg(xmlErrorMsg).toUtf8());
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}
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QDomNodeList contents = doc.elementsByTagName("Contents");
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QRegExp mcRegex("/minecraft.jar$");
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QRegExp snapshotRegex("[0-9][0-9]w[0-9][0-9][a-z]|pre|rc");
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for (int i = 0; i < contents.length(); i++)
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{
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QDomElement element = contents.at(i).toElement();
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if (element.isNull())
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continue;
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QDomElement keyElement = getDomElementByTagName(element, "Key");
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QDomElement lastmodElement = getDomElementByTagName(element, "LastModified");
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QDomElement etagElement = getDomElementByTagName(element, "ETag");
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if (keyElement.isNull() || lastmodElement.isNull() || etagElement.isNull())
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continue;
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QString key = keyElement.text();
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QString lastModStr = lastmodElement.text();
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QString etagStr = etagElement.text();
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if (!key.contains(mcRegex))
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continue;
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QString versionDirName = key.left(key.length() - 14);
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QString dlUrl = QString("http://assets.minecraft.net/%1/").arg(versionDirName);
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QString versionName = versionDirName.replace("_", ".");
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QDateTime versionTimestamp = timeFromS3Time(lastModStr);
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if (!versionTimestamp.isValid())
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{
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qDebug(QString("Failed to parse timestamp for version %1 %2").
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arg(versionName, lastModStr).toUtf8());
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versionTimestamp = QDateTime::currentDateTime();
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}
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if (currentStable)
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{
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if (etagStr == currentStable->etag())
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{
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StdInstVersion *version = new StdInstVersion(
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versionName, versionName,
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versionTimestamp.toMSecsSinceEpoch(),
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currentStable->downloadURL(), true, etagStr, m_list);
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version->setVersionType(StdInstVersion::CurrentStable);
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tempList.push_back(version);
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foundCurrentInAssets = true;
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}
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else
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{
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bool older = versionTimestamp.toMSecsSinceEpoch() < currentStable->timestamp();
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bool newer = versionTimestamp.toMSecsSinceEpoch() > currentStable->timestamp();
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bool isSnapshot = versionName.contains(snapshotRegex);
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StdInstVersion *version = new StdInstVersion(
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versionName, versionName,
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versionTimestamp.toMSecsSinceEpoch(),
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dlUrl, false, etagStr, m_list);
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if (newer)
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{
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version->setVersionType(StdInstVersion::Snapshot);
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}
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else if (older && isSnapshot)
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{
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version->setVersionType(StdInstVersion::OldSnapshot);
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}
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else if (older)
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{
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version->setVersionType(StdInstVersion::Stable);
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}
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else
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{
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// Shouldn't happen, but just in case...
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version->setVersionType(StdInstVersion::CurrentStable);
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}
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tempList.push_back(version);
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}
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}
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else // If there isn't a current stable version.
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{
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bool isSnapshot = versionName.contains(snapshotRegex);
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StdInstVersion *version = new StdInstVersion(
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versionName, versionName,
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versionTimestamp.toMSecsSinceEpoch(),
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dlUrl, false, etagStr, m_list);
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version->setVersionType(isSnapshot? StdInstVersion::Snapshot :
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StdInstVersion::Stable);
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tempList.push_back(version);
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}
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}
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setSubStatus("Loaded assets.minecraft.net");
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break;
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}
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default:
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// TODO: Network error handling.
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break;
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}
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processedAssetsReply = true;
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updateStuff();
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}
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QString mcnToAssetsVersion(QString mcnVersion);
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void StdInstVListLoadTask::processMCNReply()
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{
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switch (assetsReply->error())
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{
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case QNetworkReply::NoError:
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{
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QJsonParseError pError;
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QJsonDocument jsonDoc = QJsonDocument::fromJson(mcnReply->readAll(), &pError);
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if (pError.error != QJsonParseError::NoError)
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{
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// Handle errors.
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qDebug() << "Failed to parse MCNostalgia response. JSON parser error: " <<
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pError.errorString();
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break;
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}
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// Load data.
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QRegExp indevRegex("in(f)?dev");
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QJsonArray vlistArray = jsonDoc.object().value("order").toArray();
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for (int i = 0; i < vlistArray.size(); i++)
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{
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QString rawVersion = vlistArray.at(i).toString();
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if (rawVersion.isEmpty() || rawVersion.contains(indevRegex))
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continue;
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QString niceVersion = mcnToAssetsVersion(rawVersion);
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if (niceVersion.isEmpty())
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continue;
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StdInstVersion *version = StdInstVersion::mcnVersion(rawVersion, niceVersion);
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mcnList.prepend(version);
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}
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setSubStatus("Loaded MCNostalgia");
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break;
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}
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default:
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// TODO: Network error handling.
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break;
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}
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processedMCNReply = true;
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updateStuff();
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}
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void StdInstVListLoadTask::setSubStatus(const QString &msg)
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{
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if (msg.isEmpty())
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setStatus("Loading instance version list...");
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else
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setStatus("Loading instance version list: " + msg);
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}
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void StdInstVListLoadTask::updateStuff()
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{
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const int totalReqs = 3;
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int reqsComplete = 0;
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if (processedMCDLReply)
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reqsComplete++;
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if (processedAssetsReply)
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reqsComplete++;
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if (processedMCNReply)
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reqsComplete++;
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calcProgress(reqsComplete, totalReqs);
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if (reqsComplete >= totalReqs)
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{
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quit();
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}
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}
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class MCNostalgiaVNameMap
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{
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public:
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QMap <QString, QString> mapping;
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MCNostalgiaVNameMap()
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{
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// An empty string means that it should be ignored
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mapping["1.4.6_pre"] = "";
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mapping["1.4.5_pre"] = "";
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mapping["1.4.3_pre"] = "1.4.3";
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mapping["1.4.2_pre"] = "";
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mapping["1.4.1_pre"] = "1.4.1";
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mapping["1.4_pre"] = "1.4";
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mapping["1.3.2_pre"] = "";
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mapping["1.3.1_pre"] = "";
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mapping["1.3_pre"] = "";
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mapping["1.2_pre"] = "1.2";
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}
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} mcnVNMap;
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QString mcnToAssetsVersion(QString mcnVersion)
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{
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QMap<QString, QString>::iterator iter = mcnVNMap.mapping.find(mcnVersion);
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if (iter != mcnVNMap.mapping.end())
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{
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return iter.value();
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}
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return mcnVersion;
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}
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