Loading TLS certificates in Qt5

qtssl.cpp

#include <qcoreapplication.h>
#include <qfile.h>
#include <qnetworkaccessmanager.h>
#include <qnetworkconfiguration.h>
#include <qnetworkproxy.h>
#include <qnetworkreply.h>
#include <qnetworkrequest.h>
#include <qsslcertificate.h>
#include <qsslconfiguration.h>
#include <qsslkey.h>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QNetworkProxyFactory::setUseSystemConfiguration(true);

    QSslConfiguration sslConfiguration;

    QFile privateKeyFile("client.key");
    privateKeyFile.open(QIODevice::ReadOnly);

    QFile certificateFile("client.crt");
    certificateFile.open(QIODevice::ReadOnly);

    QSslKey privateKey(&privateKeyFile, QSsl::Opaque);
    QSslCertificate certificate(&certificateFile);

    qWarning() << QSslSocket::supportsSsl();
    qWarning() << certificate.serialNumber();
    qWarning() << certificate.subjectInfo(QSslCertificate::CommonName);
    qWarning() << certificate.expiryDate();

    sslConfiguration.setPrivateKey(privateKey);
    sslConfiguration.setLocalCertificate(certificate);

    QNetworkRequest networkRequest(QUrl("https://server/"));

    networkRequest.setSslConfiguration(sslConfiguration);

    QNetworkAccessManager networkAccessManager;

    QNetworkReply* networkReply = networkAccessManager.get(networkRequest);

    QEventLoop loop;

    QObject::connect(&networkAccessManager, &QNetworkAccessManager::finished, &loop, &QEventLoop::quit);

    loop.exec();

    qWarning() << networkReply->error();
    qWarning() << networkReply->errorString();

    delete networkReply;

    return a.exec();
}