Qt WebKit and Permanent Cookies

Question

I have a mainwindow, in it, I have a single QWebView. I want to make a certain website (www.kdkdkkd.com for instance) cookies permanent, so each time a user closes and repopens the browser he doesnt need to log in again.

Thanks,

Derryberry

Answer 1

You need to set your own "Cookie Jar".

1. Use QNetworkAccessManager::setCookieJar .
2. Extend QNetworkCookieJar - as it doesn't persist cookies by default when browser is closed:

Once the QNetworkCookieJar object is deleted, all cookies it held will be discarded as well. If you want to save the cookies, you should derive from this class and implement the saving to disk to your own storage format. (From QNetworkCookieJar documentation.)

You can do this either by pushing to permanent storage on each QNetworkCookieJar::setCookiesFromUrl (safest but slowest) or only when the browser window is closed (faster overall but less safe as if you exit abnormally cookie jar won't be saved).

Note that some cookies are not supposed to be persisted, you can use QNetworkCookie::isSessionCookie to determine this.

Oneirocritic

I Believe you meant: QNetworkCookieJar::setCookiesFromUrl I will check this now. – Derryberry

can you please explain with the code, I unable to store the cookies – Bombay

Answer 2

There is an official Qt Demo, called "Browser". It implements a CookieJar class, which supports save and load of cookies to an .ini file, using the QSettings stack.

Discontinuation

Answer 3

Once cookie(s) registered in the NAM (NetworkAccessManager), set the webview to use it :

myWebView->page()->setNetworkAccessManager(myNAM);

Utah

Consider improving the formatting and being a bit descriptive. – Security