UTPass/plugins/Pass/passphraseprovider.h

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2019-09-20 19:29:39 +00:00
#ifndef UTPASSPHRASEPROVIDER_H
#define UTPASSPHRASEPROVIDER_H
#include <stdio.h>
#include <QObject>
#include <QQmlProperty>
#include <QEventLoop>
#include <QSemaphore>
#include <gpgme++/interfaces/passphraseprovider.h>
#include "passphraseprovider.h"
#include "gpg.h"
class UTPassphraseProvider : public QObject, public PassphraseProvider
{
Q_OBJECT
private:
std::unique_ptr<QEventLoop> m_loop;
std::unique_ptr<QSemaphore> m_sem;
char *m_passphrase;
bool m_canceled;
public slots:
void handleResponse(bool canceled, QString p)
{
if (!canceled)
gpgrt_asprintf(&m_passphrase, "%s", p.toUtf8().constData());
else
m_canceled = true;
m_loop->quit();
};
public:
UTPassphraseProvider():
m_loop(std::unique_ptr<QEventLoop>(new QEventLoop)),
m_sem(std::unique_ptr<QSemaphore>(new QSemaphore(1))),
m_passphrase(nullptr),
m_canceled(false)
{}
char *getPassphrase( const char *useridHint,
const char *description,
bool previousWasBad,
bool &canceled ) Q_DECL_OVERRIDE {
if (!m_sem->tryAcquire(1, 3000))
{
qWarning() << "Cannot acquire UTPassphraseProvider semaphore.";
canceled = true;
return nullptr;
}
m_passphrase = nullptr;
m_canceled = false;
qDebug() << "Call the QML Dialog Passphrase Provider";
QMetaObject::invokeMethod(
Gpg::instance()->getWindow(), "callPassphraseDialog",
Q_ARG(QVariant, useridHint),
Q_ARG(QVariant, description),
Q_ARG(QVariant, previousWasBad)
);
qDebug() << "Waiting for response";
QObject::connect(
Gpg::instance()->getWindow(), SIGNAL(responsePassphraseDialog(bool, QString)),
this, SLOT(handleResponse(bool, QString))
);
m_loop->exec();
qDebug() << "Prepare Returns";
char *ret;
gpgrt_asprintf(&ret, "%s", m_passphrase);
canceled = m_canceled;
qDebug() << "Clean";
if (m_passphrase)
{
free(m_passphrase);
}
m_canceled = false;
m_sem->release(1);
return ret;
};
};
#endif