Pre-check facebook logged before redirect?

OAuth is wonderful and this class is grade 10/10, thanks as always.

I have a simple problem, my visitors are very basic computer users and most of them have facebook so they prefer using OAuth, the problem is that when they are not logged on facebook the redirected screen will ask for their facebook login and they think that is suspicious or just close the window in rant and quit the site.

Is it possible to pre-check if the user is logged in facebook so that I could display a different message before redirecting them to facebook?

I am afraid there is no way because your site does not know who the user is until it gets token for the first time.

What you can do is to call the CheckAccessToken() function instead of Process() and it will tell you if you would need to redirect or not. Then you can show a login button that will redirect to Facebook dialog telling the user to click there if they want.

Take a loon at the the login_check_with_facebook.php example script:

phpclasses.org/package/7700-PHP-Aut ...

Thank you very much for your always kind and fast replies.