bool FvUpdater::checkSslFingerPrint(QUrl urltoCheck)
{
if(urltoCheck.scheme()!="https")
{
qWarning()<<tr("SSL fingerprint check: The url %1 is not a ssl connection!").arg(urltoCheck.toString());
return false;
}
QSslSocket *socket = new QSslSocket(this);
socket->connectToHostEncrypted(urltoCheck.host(), 443);
if( !socket->waitForEncrypted(1000)) // waits until ssl emits encrypted(), max 1000msecs
{
qWarning()<<"SSL fingerprint check: Unable to connect SSL server: "<<socket->sslErrors();
return false;
}
QSslCertificate cert = socket->peerCertificate();
if(cert.isNull())
{
qWarning()<<"SSL fingerprint check: Unable to retrieve SSL server certificate.";
return false;
}
// COmpare digests
if(cert.digest().toHex() != m_requiredSslFingerprint)
{
qWarning()<<"SSL fingerprint check: FINGERPRINT MISMATCH! Server digest="<<cert.digest().toHex()<<", requiered ssl digest="<<m_requiredSslFingerprint;
return false;
}
return true;
}
void SslCertificateMonitor::socketReady(QObject *sockobj)
{
QSslSocket *sock = qobject_cast<QSslSocket *>(sockobj);
if (!sock)
return;
QString peerName = sock->peerName();
QSslCertificate certificate = sock->peerCertificate();
if (*(d->acceptedCache.object(peerName)) == certificate)
return; // Fast path for most recently accepted certificates
// Have we been here before?
QSslCertificate previousCertificate = cachedCertificate(peerName);
if (!previousCertificate.isNull()) {
if (certificate == previousCertificate) {
// We need to add the certificate to the cache here as well as when we add to
// the on-disk cache so that we don't hit the disk again for this site.
d->acceptedCache.insert(peerName,new QSslCertificate(certificate));
return; // All is well
}
// Cert has changed
QString message = evaluateCertificateChange( peerName, previousCertificate,
certificate, sock->sslErrors().isEmpty() );
d->acceptCurrent = false;
emit certificateWarning(sock, message);
}
else {
// The certificate is new. We don't show anything to user because then
// we're simply training them to click through our warning message without
// thinking.
d->acceptCurrent = true;
}
// If the user has chosen to accept the certificate or the certficate is new
// then we store the updated entry.
if (d->acceptCurrent) {
d->acceptedCache.insert(peerName,new QSslCertificate(certificate));
addCertificate(peerName, certificate);
}
else {
// Certficate has been considered dangerous by the user
sock->abort();
}
}
QList<QSslError> SslTlsSocket::sslErrors() const
{
QSslSocket *sock = qobject_cast<QSslSocket *>(d);
Q_ASSERT(sock);
return sock->sslErrors();
}