Is user logged into Google? [duplicate]

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Closed 8 years ago.

Possible Duplicate:
How to check whether a user is logged into his google account through API?

I am developing a webpage that shows a Google Calendar.

My question is this: Is it possible to detect if a user is currently logged into a Google Account? If it is possible (I am pretty sure that it is), what is the easiest way to detect this?

Answer 1

User should allow you to do this. You should use Google API, here it is: http://code.google.com/apis/accounts/

Check the APIs, signup for API key and users should let you to check their status in Google.

Answer 2

Have you looked the Google developer guide? https://developers.google.com/google-apps/calendar/auth recommends OAuth 2.0.