pollymc/launcher/modplatform/legacy_ftb/PackFetchTask.cpp

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#include "PackFetchTask.h"
#include "PrivatePackManager.h"
#include <QDomDocument>
#include <BuildConfig.h>
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namespace LegacyFTB {
void PackFetchTask::fetch()
{
publicPacks.clear();
thirdPartyPacks.clear();
NetJob *netJob = new NetJob("LegacyFTB::ModpackFetch");
QUrl publicPacksUrl = QUrl(BuildConfig.LEGACY_FTB_CDN_BASE_URL + "static/modpacks.xml");
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qDebug() << "Downloading public version info from" << publicPacksUrl.toString();
netJob->addNetAction(Net::Download::makeByteArray(publicPacksUrl, &publicModpacksXmlFileData));
QUrl thirdPartyUrl = QUrl(BuildConfig.LEGACY_FTB_CDN_BASE_URL + "static/thirdparty.xml");
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qDebug() << "Downloading thirdparty version info from" << thirdPartyUrl.toString();
netJob->addNetAction(Net::Download::makeByteArray(thirdPartyUrl, &thirdPartyModpacksXmlFileData));
QObject::connect(netJob, &NetJob::succeeded, this, &PackFetchTask::fileDownloadFinished);
QObject::connect(netJob, &NetJob::failed, this, &PackFetchTask::fileDownloadFailed);
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jobPtr.reset(netJob);
netJob->start();
}
void PackFetchTask::fetchPrivate(const QStringList & toFetch)
{
QString privatePackBaseUrl = BuildConfig.LEGACY_FTB_CDN_BASE_URL + "static/%1.xml";
for (auto &packCode: toFetch)
{
QByteArray *data = new QByteArray();
NetJob *job = new NetJob("Fetching private pack");
job->addNetAction(Net::Download::makeByteArray(privatePackBaseUrl.arg(packCode), data));
QObject::connect(job, &NetJob::succeeded, this, [this, job, data, packCode]
{
ModpackList packs;
parseAndAddPacks(*data, PackType::Private, packs);
foreach(Modpack currentPack, packs)
{
currentPack.packCode = packCode;
emit privateFileDownloadFinished(currentPack);
}
job->deleteLater();
data->clear();
delete data;
});
QObject::connect(job, &NetJob::failed, this, [this, job, packCode, data](QString reason)
{
emit privateFileDownloadFailed(reason, packCode);
job->deleteLater();
data->clear();
delete data;
});
job->start();
}
}
void PackFetchTask::fileDownloadFinished()
{
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jobPtr.reset();
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QStringList failedLists;
if(!parseAndAddPacks(publicModpacksXmlFileData, PackType::Public, publicPacks))
{
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failedLists.append(tr("Public Packs"));
}
if(!parseAndAddPacks(thirdPartyModpacksXmlFileData, PackType::ThirdParty, thirdPartyPacks))
{
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failedLists.append(tr("Third Party Packs"));
}
if(failedLists.size() > 0)
{
emit failed(tr("Failed to download some pack lists: %1").arg(failedLists.join("\n- ")));
}
else
{
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emit finished(publicPacks, thirdPartyPacks);
}
}
bool PackFetchTask::parseAndAddPacks(QByteArray &data, PackType packType, ModpackList &list)
{
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QDomDocument doc;
QString errorMsg = "Unknown error.";
int errorLine = -1;
int errorCol = -1;
if(!doc.setContent(data, false, &errorMsg, &errorLine, &errorCol))
{
auto fullErrMsg = QString("Failed to fetch modpack data: %1 %2:3d!").arg(errorMsg, errorLine, errorCol);
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qWarning() << fullErrMsg;
data.clear();
return false;
}
QDomNodeList nodes = doc.elementsByTagName("modpack");
for(int i = 0; i < nodes.length(); i++)
{
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QDomElement element = nodes.at(i).toElement();
Modpack modpack;
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modpack.name = element.attribute("name");
modpack.currentVersion = element.attribute("version");
modpack.mcVersion = element.attribute("mcVersion");
modpack.description = element.attribute("description");
modpack.mods = element.attribute("mods");
modpack.logo = element.attribute("logo");
modpack.oldVersions = element.attribute("oldVersions").split(";");
modpack.broken = false;
modpack.bugged = false;
//remove empty if the xml is bugged
for(QString curr : modpack.oldVersions)
{
if(curr.isNull() || curr.isEmpty())
{
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modpack.oldVersions.removeAll(curr);
modpack.bugged = true;
qWarning() << "Removed some empty versions from" << modpack.name;
}
}
if(modpack.oldVersions.size() < 1)
{
if(!modpack.currentVersion.isNull() && !modpack.currentVersion.isEmpty())
{
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modpack.oldVersions.append(modpack.currentVersion);
qWarning() << "Added current version to oldVersions because oldVersions was empty! (" + modpack.name + ")";
}
else
{
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modpack.broken = true;
qWarning() << "Broken pack:" << modpack.name << " => No valid version!";
}
}
modpack.author = element.attribute("author");
modpack.dir = element.attribute("dir");
modpack.file = element.attribute("url");
modpack.type = packType;
list.append(modpack);
}
return true;
}
void PackFetchTask::fileDownloadFailed(QString reason)
{
qWarning() << "Fetching FTBPacks failed:" << reason;
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emit failed(reason);
}
}