Hi all,

I'm developing an app for Symbian S60 5th and Sym^3 phones using Nokia Qt SDK v.1.1.3.

My app needs to communicate with a server through HTTPS Post. The server has a certificate (.cer file) to be used for verification and encryption.

I'm trying to implement the network communication in QML/JS using XmlHttpRequest but it does not work: it is interrupted during handshake with readystate = DONE but with status = 0 and status text = 0.

My code is:
Qt Code: 
  1. var https = new XMLHttpRequest();
  2.     https.open("POST", url, true);
  3.  
  4.     https.setRequestHeader("Content-type", "application/json");
  5.     https.onreadystatechange = function() {
  6.         if (https.readyState == XMLHttpRequest.HEADERS_RECEIVED) {
  7.             var status = https.status;
  8.             if(status != 200) {
  9.                 app.logWrite("HttpsPostToService; Headers received; Error. Status: " + status + ". Status text: " + https.statusText, 4);
  10.                 return;
  11.             }
  12.         } else if (https.readyState == XMLHttpRequest.DONE) {
  13.             var status = https.status;
  14.             if(status != 200) {
  15.                 app.logWrite("HttpsPostToService; Done; Not OK. Status: " + status + ". Status text: " + https.statusText, 4);
  16.                 return;
  17.             }
  18.             var data = null;
  19.             data = https.responseText;
  20.             app.logWrite("HttpsPostToService; Done; OK. Received following data:", 4);
  21.             app.logWrite("HttpsPostToService; " + data, 4);
  22.          }
  23.     }
  24.     https.send(jsonpar);
To copy to clipboard, switch view to plain text mode 

I tried successfully to load server certificate among the default CA Certificates for QSSLSockets but this does not solve the problem (see code below).
I was thinking QML to use QSSLSocket in SSL communication but perhaps I'm wrong.

My question is: is it possible to manage SSL with XMLHttpRequest? If yes how can I add the certificate in order to use it?
Or have I to go with a Qt implementation?

Thanks in advance for any support.


Qt Code: 
  1. if (QFile::exists("C:/Data/Certs/certificate.cer"))
  2.     {
  3.         QFile certFile("C:/Data/Certs/certificate.cer");
  4.         if (certFile.open(QIODevice::ReadOnly))
  5.         {
  6.             QSslCertificate cert(&certFile, QSsl::Der);
  7.             if (! cert.isNull())
  8.             {
  9.                 qDebug() << "Cert not null";
  10.                 if (cert.isValid())
  11.                 {
  12.                     qDebug() << "Cert is valid";
  13.                     QSslSocket::addDefaultCaCertificate(cert);
  14.                     qDebug() << "Cert was added. Info: " << cert.serialNumber();
  15.                 }
  16.                 else
  17.                 {
  18.                     qDebug() << "Cert is NOT valid";
  19.                 }
  20.  
  21.  
  22.             }
  23.             else
  24.             {
  25.                 qDebug() << "Cert is null";
  26.             }
  27.             if (certFile.isOpen())
  28.                 certFile.close();
  29.         }
  30.     }
  31.  
  32.  
  33.     qDebug() << "Root CA certificates: \n" << QSslSocket::defaultCaCertificates();
To copy to clipboard, switch view to plain text mode