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frixos's avatar
frixos
Explorer | Level 3
5 years ago

Redirection after login with a google account do not work.

I have a problem with the login on DropBox in my app. (Login process with chrome mobile browser, App in Xamarin for Android) It works with google accounts I login one time before, therefore i think ...
API
Greg-DB's avatar
Greg-DB
Icon for Dropbox Community Moderator rankDropbox Community Moderator
5 years ago

Thanks for following up. I can't seem to reproduce this issue though.

 

In the broken case, is "https://www.dropbox.com/oauth2/authorize" definitely the full URL of the page? The browser may be hiding the rest of it. I wouldn't expect the app name and permissions to be shown there if there is no client_id parameter set.

 

In any case, would you be able to share a screen recording of the issue? That would be helpful since this doesn't reproduce for me. Please make sure the full address bar is showing for reference. Apologies for the bother and thanks in advance!

frixos's avatar
frixos
Explorer | Level 3
5 years ago

Yes, i think the url was in both cases the same.

 

The issue also appears if i create a new DropBox account.

 

I made a screen video.

  • Greg-DB's avatar
    Greg-DB
    Icon for Dropbox Community Moderator rankDropbox Community Moderator
    5 years ago

    Thanks, your API support ticket has been received. We'll look into it.

    • frixos's avatar
      frixos
      Explorer | Level 3
      5 years ago

      i found now a solution with the httpListener:

      The security behaviour changed since Android 8. All devices higher than this version, will not work correct with the redirection.

      The problem is, the httpListener blocks all incoming messages, after some time, if the app is in the background.

      We can handel this by register the app as a forground service.

      You need for this some code and one new android Permission "Forground".

      The httpListener runs in a Android Service.

       

      Are there a newer working example with the Xamarin WebAuthenticator? It would get a better user experience.

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Community Moderator rankDropbox Community Moderator
        5 years ago

        Thanks for sharing your solution! We don't have any sample code for Xamarin unfortunately.

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