El diumenge, 29 d’octubre de 2017, a les 9:47:24 CET, Stefano Crocco va escriure: > Hello to everyone, > I'm working on making QWebEngine work correctly in Konqueror when > downloading files (although I didn't have much time to spend on this in the > last months). > > The problem is that instead of downloading the correct files, in some cases > Konqueror download html files. This only happens from sites requiring > authentication (I first noticed when trying to download a file from my > bank's web page); besides, it only happens if I try to use KIO for the > download, for example calling KIO::copy from a slot connected with > QWebEngineProfile::downloadRequested. The file downloads correctly if > Konqueror downloads it using the mechanism provided by QWebEngine, that is > calling QWebEngineDownloaditem::accept. > > I believe that the issue is caused by cookies, and in particular by the fact > that QWebEngine doesn't share its cookies with KIO so that, when KIO > attempts to download the file, it doesn't have the cookie(s) associated > with the session opened in the browser and the web page refuses to let it > download the file (indeed, one of the sites where this happens returned a > login page instead of the PDF I wanted to download). > > Looking at the documentation both for QWebEngine and for KIO > regarding cookies. I found out two classes: > * on QWebEngine's side, there's QWebEngineCookieStore, which provides > signals emitted whenever a cookie is added or removed and which, according > to documentation [1], "can be used to synchronize cookies of Chromium and > the QNetworkAccessManager" > * on KIO's side, there's KIO::Integration::AccessManager, which derives from > QNetworkAccessManager and which should work along QWebEngineCookieStore. > > The example in the documentation for KIO::Integration::AccessManager refers > to QWebView and says to call QWebPage::setNetworkAccessManager to have the > QWebView and KIO to use the same access manager. Unfortunately, QWebEngine > can't be integrated with a QNetworkAccessManager: not only QWebEnginePage > doesn't have a setNetworkAccessManager method, but the documentation for > QWebEngine explicitly says that it doesn't use QNetworkAccess. Because of > this, I thought to do things the other way round: I created a > KIO::Integration::AccessManager and, used slots connected with > QWebEngineCookieStore signals, to add cookies to it. > > Unfortunately, this doesn't fix the issue. I believe this is because I > haven't told KIO to use the new access manager. The problem is that I can > see any way to do it. Does anyone have suggestions on how to do this?
Since your question is related to KIO you may want to ask in kde-frameworks-de...@kde.org if noone answers here. Cheers, Albert > > Thanks > > Stefano > > [1] http://doc.qt.io/qt-5/qwebenginecookiestore.html#details
