pollymc/api/logic/minecraft/ProfileUtils.cpp
Petr Mrázek 5fabb4f254 NOISSUE Rough refactor of ProfilePatch and VersionFile internals.
They are now distinct classes with distinct responsibilities.

* ProfilePatch is an entry in MinecraftProfile and can hold VersionFile or Meta::Version.
* VersionFile is the basic element that holds version information loaded from JSON.
* Meta::Version is the loader class for VersionFile(s) from a server.
2017-04-07 00:20:02 +02:00

192 lines
5.3 KiB
C++

#include "ProfileUtils.h"
#include "minecraft/VersionFilterData.h"
#include "minecraft/onesix/OneSixVersionFormat.h"
#include "Json.h"
#include <QDebug>
#include <QJsonDocument>
#include <QJsonArray>
#include <QRegularExpression>
#include <QSaveFile>
namespace ProfileUtils
{
static const int currentOrderFileVersion = 1;
bool writeOverrideOrders(QString path, const PatchOrder &order)
{
QJsonObject obj;
obj.insert("version", currentOrderFileVersion);
QJsonArray orderArray;
for(auto str: order)
{
orderArray.append(str);
}
obj.insert("order", orderArray);
QSaveFile orderFile(path);
if (!orderFile.open(QFile::WriteOnly))
{
qCritical() << "Couldn't open" << orderFile.fileName()
<< "for writing:" << orderFile.errorString();
return false;
}
auto data = QJsonDocument(obj).toJson(QJsonDocument::Indented);
if(orderFile.write(data) != data.size())
{
qCritical() << "Couldn't write all the data into" << orderFile.fileName()
<< "because:" << orderFile.errorString();
return false;
}
if(!orderFile.commit())
{
qCritical() << "Couldn't save" << orderFile.fileName()
<< "because:" << orderFile.errorString();
}
return true;
}
bool readOverrideOrders(QString path, PatchOrder &order)
{
QFile orderFile(path);
if (!orderFile.exists())
{
qWarning() << "Order file doesn't exist. Ignoring.";
return false;
}
if (!orderFile.open(QFile::ReadOnly))
{
qCritical() << "Couldn't open" << orderFile.fileName()
<< " for reading:" << orderFile.errorString();
qWarning() << "Ignoring overriden order";
return false;
}
// and it's valid JSON
QJsonParseError error;
QJsonDocument doc = QJsonDocument::fromJson(orderFile.readAll(), &error);
if (error.error != QJsonParseError::NoError)
{
qCritical() << "Couldn't parse" << orderFile.fileName() << ":" << error.errorString();
qWarning() << "Ignoring overriden order";
return false;
}
// and then read it and process it if all above is true.
try
{
auto obj = Json::requireObject(doc);
// check order file version.
auto version = Json::requireInteger(obj.value("version"));
if (version != currentOrderFileVersion)
{
throw JSONValidationError(QObject::tr("Invalid order file version, expected %1")
.arg(currentOrderFileVersion));
}
auto orderArray = Json::requireArray(obj.value("order"));
for(auto item: orderArray)
{
order.append(Json::requireString(item));
}
}
catch (JSONValidationError &err)
{
qCritical() << "Couldn't parse" << orderFile.fileName() << ": bad file format";
qWarning() << "Ignoring overriden order";
order.clear();
return false;
}
return true;
}
static VersionFilePtr createErrorVersionFile(QString fileId, QString filepath, QString error)
{
auto outError = std::make_shared<VersionFile>();
outError->uid = outError->name = fileId;
// outError->filename = filepath;
outError->addProblem(ProblemSeverity::Error, error);
return outError;
}
static VersionFilePtr guardedParseJson(const QJsonDocument & doc,const QString &fileId,const QString &filepath,const bool &requireOrder)
{
try
{
return OneSixVersionFormat::versionFileFromJson(doc, filepath, requireOrder);
}
catch (Exception & e)
{
return createErrorVersionFile(fileId, filepath, e.cause());
}
}
VersionFilePtr parseJsonFile(const QFileInfo &fileInfo, const bool requireOrder)
{
QFile file(fileInfo.absoluteFilePath());
if (!file.open(QFile::ReadOnly))
{
auto errorStr = QObject::tr("Unable to open the version file %1: %2.").arg(fileInfo.fileName(), file.errorString());
return createErrorVersionFile(fileInfo.completeBaseName(), fileInfo.absoluteFilePath(), errorStr);
}
QJsonParseError error;
auto data = file.readAll();
QJsonDocument doc = QJsonDocument::fromJson(data, &error);
file.close();
if (error.error != QJsonParseError::NoError)
{
int line = 1;
int column = 0;
for(int i = 0; i < error.offset; i++)
{
if(data[i] == '\n')
{
line++;
column = 0;
continue;
}
column++;
}
auto errorStr = QObject::tr("Unable to process the version file %1: %2 at line %3 column %4.")
.arg(fileInfo.fileName(), error.errorString())
.arg(line).arg(column);
return createErrorVersionFile(fileInfo.completeBaseName(), fileInfo.absoluteFilePath(), errorStr);
}
return guardedParseJson(doc, fileInfo.completeBaseName(), fileInfo.absoluteFilePath(), requireOrder);
}
VersionFilePtr parseBinaryJsonFile(const QFileInfo &fileInfo)
{
QFile file(fileInfo.absoluteFilePath());
if (!file.open(QFile::ReadOnly))
{
auto errorStr = QObject::tr("Unable to open the version file %1: %2.").arg(fileInfo.fileName(), file.errorString());
return createErrorVersionFile(fileInfo.completeBaseName(), fileInfo.absoluteFilePath(), errorStr);
}
QJsonDocument doc = QJsonDocument::fromBinaryData(file.readAll());
file.close();
if (doc.isNull())
{
file.remove();
throw JSONValidationError(QObject::tr("Unable to process the version file %1.").arg(fileInfo.fileName()));
}
return guardedParseJson(doc, fileInfo.completeBaseName(), fileInfo.absoluteFilePath(), false);
}
void removeLwjglFromPatch(VersionFilePtr patch)
{
auto filter = [](QList<LibraryPtr>& libs)
{
QList<LibraryPtr> filteredLibs;
for (auto lib : libs)
{
if (!g_VersionFilterData.lwjglWhitelist.contains(lib->artifactPrefix()))
{
filteredLibs.append(lib);
}
}
libs = filteredLibs;
};
filter(patch->libraries);
}
}