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#include "JavaChecker.h"
#include <QFile>
#include <QProcess>
#include <QMap>
#include <QTemporaryFile>
#define CHECKER_FILE "JavaChecker.jar"
JavaChecker::JavaChecker(QObject *parent) : QObject(parent)
{
}
void JavaChecker::performCheck()
{
checkerJar.setFileTemplate("checker_XXXXXX.jar");
checkerJar.open();
QFile inner(":/java/checker.jar");
inner.open(QIODevice::ReadOnly);
checkerJar.write(inner.readAll());
inner.close();
checkerJar.close();
QStringList args = {"-jar", checkerJar.fileName()};
process.reset(new QProcess());
process->setArguments(args);
process->setProgram(path);
process->setProcessChannelMode(QProcess::SeparateChannels);
connect(process.get(), SIGNAL(finished(int, QProcess::ExitStatus)), this,
SLOT(finished(int, QProcess::ExitStatus)));
connect(process.get(), SIGNAL(error(QProcess::ProcessError)), this,
SLOT(error(QProcess::ProcessError)));
connect(&killTimer, SIGNAL(timeout()), SLOT(timeout()));
killTimer.setSingleShot(true);
killTimer.start(5000);
process->start();
}
void JavaChecker::finished(int exitcode, QProcess::ExitStatus status)
{
killTimer.stop();
QProcessPtr _process;
_process.swap(process);
checkerJar.remove();
JavaCheckResult result;
{
result.path = path;
}
if (status == QProcess::CrashExit || exitcode == 1)
{
emit checkFinished(result);
return;
}
bool success = true;
QString p_stdout = _process->readAllStandardOutput();
QMap<QString, QString> results;
QStringList lines = p_stdout.split("\n", QString::SkipEmptyParts);
for(QString line : lines)
{
line = line.trimmed();
auto parts = line.split('=', QString::SkipEmptyParts);
if(parts.size() != 2 || parts[0].isEmpty() || parts[1].isEmpty())
{
success = false;
}
else
{
results.insert(parts[0], parts[1]);
}
}
if(!results.contains("os.arch") || !results.contains("java.version") || !success)
{
emit checkFinished(result);
return;
}
auto os_arch = results["os.arch"];
auto java_version = results["java.version"];
bool is_64 = os_arch == "x86_64" || os_arch == "amd64";
result.valid = true;
result.is_64bit = is_64;
result.mojangPlatform = is_64 ? "64" : "32";
result.realPlatform = os_arch;
result.javaVersion = java_version;
emit checkFinished(result);
}
void JavaChecker::error(QProcess::ProcessError err)
{
if(err == QProcess::FailedToStart)
{
killTimer.stop();
JavaCheckResult result;
{
result.path = path;
}
emit checkFinished(result);
return;
}
}
void JavaChecker::timeout()
{
// NO MERCY. NO ABUSE.
if(process)
{
process->kill();
process.reset();
}
}
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