Error : "Protocol \"https\" is unknown"

Qjay

Hello i am trying to make a request to HTTPS url , i am getting following error
Error : "Protocol \"https\" is unknown"

below code works fine for the HTTP request but not for HTTPS

#include <QCoreApplication>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QUrl>
#include <QUrlQuery>
#include <QDebug>
#include <QString>
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
     QString requested_url = "https://www.google.com";

    // create custom temporary event loop on stack
    QEventLoop eventLoop;

    // "quit()" the event-loop, when the network request "finished()"
    QNetworkAccessManager mgr;
    QObject::connect(&mgr, SIGNAL(finished(QNetworkReply*)), &eventLoop, SLOT(quit()));

    // the HTTP request
    QNetworkRequest req( requested_url );

    QSslConfiguration conf = req.sslConfiguration();
    conf.setPeerVerifyMode(QSslSocket::VerifyNone);
    req.setSslConfiguration(conf);


    QNetworkReply *reply = mgr.get(req);
    eventLoop.exec();

    if (reply->error() == QNetworkReply::NoError) {

	qDebug() << (QString)reply->readAll();


    }
    else {
	qDebug() << "Error : " << reply->errorString();
}
    return a.exec();
}

i am using Qt 5.9.2 on CentOS 7

SGaist

Hi,

How did you install Qt ?
What version of OpenSSL do you have installed ?

Qjay

openssl : OpenSSL 1.0.2k-fips 26 Jan 2017

offline installer for qt

SGaist

Do you have the same issue if you use your distribution provided Qt ?

Qjay

@sgaist i am not sure how to check it.

mrjj

Hi
try to install qt and see what version it has

yum install qt

check whats installed

yum list qt*

Qjay

hello i have Qt from here : https://download.qt.io/official_releases/qt/5.9/5.9.2/

SGaist

Hence our suggestions: use your distribution package manager to install Qt and test that this version is working properly first.

Qjay

hey i didn't fixed it . i downloaded Qt5.12.4 and then upgraded my openssl lib to 1.1.1b

so i am good now
thanks !!

Solved Error : "Protocol \"https\" is unknown"