Getting feedback from the web browser once a user has authorised an OAuth token



  • I'm currently implementing an OAuth authentication system in my app using a third-party "QOauth":https://github.com/ayoy/qoauth library. I'm trying to figure out how to get feedback from the browser that will let me know that the user has either authorised the token or cancelled the process.

    So far, I can only think of starting a timer as soon as the user presses the "Authorise" button that will open their browser at the service's authorisation page using QDesktopServices::openUrl, and pinging the service once every 4 seconds for a minute to see if the token has been authorised. While this would work, It's not very nice and I was wondering if anyone could come up with a better solution since this one would rely on using QTimer and that "doesn't seem to be completely reliable":http://qt-project.org/doc/qt-4.8/QTimer.html#accuracy-and-timer-resolution.

    I was hoping to be able to use something akin to a Signal/Slot operation, but since the browser is an external app, I have no idea how to tap into it. I also can't rely on the starting and stopping of the browser's process to indicate what's going on since the user having the browser already open will throw that right off.


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