Support for OAuth 2.0 (for Google calendar)

[tobixen]

Ref https://developers.google.com/calendar/caldav/v2/guide it's needed to add support for OAuth 2.0 to be able to use Google calendar in the future (the legacy endpoint seem to work somehow as for now, but it's not to be relied on).

(Found while investigating issue #78)

[radoystoyanov]

Hi Tobias, any news on when you're planning to add OAuth 2 support? I can't get the access to Google Calendar working (probably due to 2FA) and I'm wondering if there's any workaround – e.g. implementing the auth flow myself. Thanks!

[tobixen]

I won't have time to deal with it in the foreseeable future. I would happily accept a pull request.

The legacy endpoint was still working last time I checked, but one had to go through some security questions on the google account to allow access.

[tobixen]

Oh, there is another workaround - there is a competing tool gcalcli that is specifically made for the google calendar.

[radoystoyanov]

Thanks for the hints. I will have a look around and if I find a solution that I can contribute, I will certainly do it.