Save Cookies in Qt6.2.4 ?

Paullux

hello, since i change Qt5 to Qt6 for my app, that's worked for Qt5 (to save the cookies), doesn't work now :

    QString home=QDir::homePath();

    QWebEngineProfile::defaultProfile()->setPersistentCookiesPolicy(QWebEngineProfile::ForcePersistentCookies);
    QWebEngineProfile* defaultProfile = QWebEngineProfile::defaultProfile();

    defaultProfile->setHttpCacheType(QWebEngineProfile::DiskHttpCache);
    defaultProfile->setPersistentCookiesPolicy(QWebEngineProfile::ForcePersistentCookies);
    QHttpPart* header = new QHttpPart;
    header->setRawHeader("X-Frame-Options", "ALLOWALL");

#ifdef __linux__
    defaultProfile->setCachePath(home + ".FranceTV/cache/");
    defaultProfile->setPersistentStoragePath(home + ".FranceTV/persistentstorage/");
#elif _WIN32
    defaultProfile->setCachePath(home + "/AppData/Roaming/FranceTV/cache/");
    defaultProfile->setPersistentStoragePath(home + "/AppData/Roaming/FranceTV/persistentstorage/");
#elif __APPLE__
    defaultProfile->setCachePath(home + "/Library/Application Support/FranceTV/cache/");
    defaultProfile->setPersistentStoragePath(home + "/Library/Application Support/FranceTV/persistentstorage/");
#endif

Paullux

The Solution is :

    QWebEngineProfile *profile = new QWebEngineProfile(QString::fromLatin1("MyApplication.%1").arg(qWebEngineChromiumVersion()));  // unique profile store per qtwbengine version
    QWebEnginePage *page = new QWebEnginePage(profile); // page using profile
    QWebEngineView *view = new QWebEngineView();

    view->setPage(page);
    view->setUrl(AccueilUrl);
    view->setZoomFactor(1.2);

    setCentralWidget(view);

SGaist

Hi,

What do you mean by does not work ?
Files are not written ?
Cookies are not read back ?

Out of curiosity, why not use QStandardPaths rather than hard code each system path ?

Paullux

First, The files aren't write.

And the app don't read the old cookies from Qt5 version.

and how to use QStandardPaths ?

SGaist

Did you check whether the path has been updated correctly ?

As for QStandardPaths, you likely want the writable path for AppDataLocation.

Paullux

I do this :

    QWebEngineProfile::defaultProfile()->setPersistentCookiesPolicy(QWebEngineProfile::ForcePersistentCookies);
    QWebEngineProfile* defaultProfile = QWebEngineProfile::defaultProfile();

    defaultProfile->setHttpCacheType(QWebEngineProfile::DiskHttpCache);
    defaultProfile->setPersistentCookiesPolicy(QWebEngineProfile::ForcePersistentCookies);
    QHttpPart* header = new QHttpPart;
    header->setRawHeader("X-Frame-Options", "ALLOWALL");

    defaultProfile->setCachePath(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
    defaultProfile->setPersistentStoragePath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation));

but that don't resolve the problem

SGaist

Did you do the paths checks I suggested ?

Paullux

    qDebug(qPrintable(QStandardPaths::writableLocation(QStandardPaths::CacheLocation)));
    qDebug("\n");
    qDebug(qPrintable(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation)));

return :

C:/Users/paulw/AppData/Local/Paul_WOISARD/FranceTV/cache


C:/Users/paulw/AppData/Local/Paul_WOISARD/FranceTV

but the folders don't exist in my system

SGaist

I meant before and after setting the path on the default profile.

Paullux

@SGaist said in Save Cookies in Qt6.2.4 ?:

I meant before and after setting the path on the default profile.

The problem is existing since i upgrade to Qt6.2.3 or Qt6.2.4, before with Qt5.15.2 ou Qt5.15.6 i havent its problem

SGaist

That I understood very well. Hence I suggested that you compare the values of the cache path before and after you set it on the profile in order to eliminate that as an obvious possible bug.

Paullux

@SGaist said in Save Cookies in Qt6.2.4 ?:

That I understood very well. Hence I suggested that you compare the values of the cache path before and after you set it on the profile in order to eliminate that as an obvious possible bug.

in doc i found this :

    QNetworkAccessManager *manager = new QNetworkAccessManager(this);
    QNetworkDiskCache *diskCache = new QNetworkDiskCache(this);
    diskCache->setCacheDirectory(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
    manager->setCache(diskCache);

which save cache but no cookies

for your question

    qDebug("before");
    qDebug(qPrintable(QWebEngineProfile::defaultProfile()->persistentStoragePath()));

...
...
...
    qDebug("after");
    qDebug(qPrintable(QWebEngineProfile::defaultProfile()->persistentStoragePath()));

result :

before
qt.webenginecontext:
...
...
...
after
C:/Users/paulw/AppData/Local/Paul_WOISARD/FranceTV

Paullux

@Paullux said in Save Cookies in Qt6.2.4 ?:

qDebug("before");
qDebug(qPrintable(QWebEngineProfile::defaultProfile()->persistentStoragePath()));

@SGaist

the responses to your question is here :

    qDebug("before");
    qDebug(qPrintable(QWebEngineProfile::defaultProfile()->cachePath()));
    qDebug(qPrintable(QWebEngineProfile::defaultProfile()->persistentStoragePath()));
    defaultProfile->setCachePath(QStandardPaths::writableLocation(QStandardPaths::CacheLocation));
    defaultProfile->setPersistentStoragePath(QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation));
    qDebug("after");
    qDebug(qPrintable(QWebEngineProfile::defaultProfile()->cachePath()));
    qDebug(qPrintable(QWebEngineProfile::defaultProfile()->persistentStoragePath()));

reponse :

before

C:/Users/paulw/AppData/Roaming/Paul_WOISARD/FranceTV/QtWebEngine/OffTheRecord
after

C:/Users/paulw/AppData/Local/Paul_WOISARD/FranceTV

cachePath is never set

SGaist

Looks like you found the culprit.

Can you check with 6.3 ?

Paullux

@SGaist said in Save Cookies in Qt6.2.4 ?:

Looks like you found the culprit.

with qt6.2.3 it's the same

CachePath: ""
StoragePath: "C:/Users/paulw/AppData/Roaming/Paul_WOISARD/FranceTV/QtWebEngine/OffTheRecord"
isOffTheRecord: true
after
CachePath: ""
StoragePath: "C:/Users/paulw/AppData/Local/Paul_WOISARD/FranceTV"
isOffTheRecord: true

perhaps cache size must be define

Paullux

the problem with qt6.3.0 is always here

SGaist

Then you should check the bug report system to see if there already something about it. If not, please open a new report providing a minimal compilable example that shows that behaviour.

Paullux

i created a ticket issue : https://bugreports.qt.io/browse/QTBUG-102133

Paullux

its not mean be a bug.

a developer of Qt said me :
Michal Klocek a ajouté un commentaire - Il y a 2 heures
in 6.x series default profile is off the record , you need to create a custom profile and use that.

how to create a profile which is on the record ?

SGaist

Unless I am mistaken you got an answer to that as well on the report.

Paullux

The Solution is :

    QWebEngineProfile *profile = new QWebEngineProfile(QString::fromLatin1("MyApplication.%1").arg(qWebEngineChromiumVersion()));  // unique profile store per qtwbengine version
    QWebEnginePage *page = new QWebEnginePage(profile); // page using profile
    QWebEngineView *view = new QWebEngineView();

    view->setPage(page);
    view->setUrl(AccueilUrl);
    view->setZoomFactor(1.2);

    setCentralWidget(view);