Accessing headers/cookies in WebSockets handshake request

Cocojambo

Hi. I'm playing with Websockets Simplechat example from here QT Simplechat:

It's works correctly but how can I access cookies?

The docs says that we can access/use it Mozilla MDN

Also, common headers like User-Agent, Referer, Cookie, or authentication headers might be there as well.

And I see that Mozilla (Opera) transfers Cookie header.

Pablo J. Rogina

@Cocojambo said in Accessing headers/cookies in WebSockets handshake request:

QT Simplechat:

In that example, you can have the QWebSocket from every connection

QWebSocket *pSender = qobject_cast<QWebSocket *>(sender());

so with QWebSocket::request() you can have the QNetworkRequest for such connection
and ultimately you'll get the headers from that request:

QNetworkRequest::header(QNetworkRequest::KnownHeaders header)
QNetworkRequest::rawHeader(const QByteArray &headerName)

Cocojambo

@Pablo-J-Rogina
Thank you, your answer helped me. Something like this returns all cookies as raw string.

QNetworkRequest rq = pSocket->request();
QByteArray h = rq.rawHeader("Cookie");
qDebug() << QString::fromUtf8(h);

Could you also advice how to iterate all cookies from the header?

QVariant hdr = rq.header(QNetworkRequest::CookieHeader);

qDebug() << hdr returns QVariant(QList<QNetworkCookie>, ) and in debugger I see that it contains several items (the same qty as browser sends).

Pablo J. Rogina

@Cocojambo said in Accessing headers/cookies in WebSockets handshake request:

qDebug() << hdr returns QVariant(QList<QNetworkCookie>, )

Well, your "problem" now turned into iterating a list of QNetworkCookie items... some pseudo-code:

foreach (QNetworkCookie cookie, hdr) {
    qDebug() << cookie.toRawForm();
}

Cocojambo

@Pablo-J-Rogina

Accidentally found needed code in QT sources. It returns all the cookies one by one.

QVariant hdr = rq.header(QNetworkRequest::CookieHeader);

QList<QNetworkCookie> cookies = qvariant_cast<QList<QNetworkCookie> >(hdr);
QList<QNetworkCookie>::ConstIterator it = cookies.begin(), end = cookies.end();

for ( ; it != end; ++it) {
    qDebug() << it->name();
}