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#include "JavaChecker.h"
#include <QFile>
#include <QProcess>
#define CHECKER_FILE "JavaChecker.jar"
JavaChecker::JavaChecker(QObject *parent) : QObject(parent)
{
}
void JavaChecker::performCheck(QString path)
{
if(QFile::exists(CHECKER_FILE))
{
QFile::remove(CHECKER_FILE);
}
// extract the checker
QFile(":/java/checker.jar").copy(CHECKER_FILE);
QStringList args = {"-jar", CHECKER_FILE};
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);
if (status == QProcess::CrashExit || exitcode == 1)
{
emit checkFinished({});
return;
}
QString p_stdout = _process->readAllStandardOutput();
auto parts = p_stdout.split('=', QString::SkipEmptyParts);
if (parts.size() != 2 || parts[0] != "os.arch")
{
emit checkFinished({});
return;
}
auto os_arch = parts[1].remove('\n').remove('\r');
bool is_64 = os_arch == "x86_64" || os_arch == "amd64";
JavaCheckResult result;
{
result.valid = true;
result.is_64bit = is_64;
result.mojangPlatform = is_64 ? "64" : "32";
result.realPlatform = os_arch;
}
emit checkFinished(result);
}
void JavaChecker::error(QProcess::ProcessError err)
{
if(err == QProcess::FailedToStart)
{
killTimer.stop();
emit checkFinished({});
return;
}
}
void JavaChecker::timeout()
{
// NO MERCY. NO ABUSE.
if(process)
{
process->kill();
process.reset();
}
}
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