Re: [Evolution] Howto add Google calendar without OAuth2

[Milan Crha <mcrha redhat com>]

On Mon, 2018-08-27 at 23:22 +0200, Torsten Krah via evolution-list
wrote:
> with my old evolution 3.10.x i've added my gmail calendar and it
> works here.

        Hi,
I'm not sure why you started a new thread here, when it's closely
related to your "Adding a new google account ignores manually set auth
methods on imap/smtp". Yes, they are two different protocols, but the
problem is still the same, OAuth2 is needed, which you do not want to
use.

> Trying todo this on evolution 3.28.1 i can't get this working again -
> it just tells me:
>
> "Datenquelle »gMail« unterstützt die Legitimierung mit OAuth 2.0
> nicht"

I'm afraid I cannot decipher the error message. A translation would be
nice to have. Google's Translate says "Data source »gMail« supports the
legitimization with OAuth 2.0 Not". From that I suppose you did not use
File->New->Calendar, did you?

> Yes i know, i can't use OAuth yet - still using the legacy ones -

Why? OAuth2 is not Two-Factor-Authentication, those are two different
things. My Gmail account uses password login and it works fine with
Evolution and OAuth2, not talking that with OAuth2 one also gets many
good advantages, like the live synchronization of all the calendars by
one click (all my calendars are added to evolution without me doing
anything more).

Being it due to
https://bugzilla.gnome.org/show_bug.cgi?id=795997
then, please, use a distribution which updates the software with
important fixes. This one is fixed for more than 3 and half months,
with released 3.28.3 on 2018-06-18, thus more than 2 months ago.

> so howto add that calendar without OAuth (like in 3.10.x)?

If evolution knows that OAuth2 can be supported, then it uses it. As
mentioned above and in your previous thread (referenced above), it also
depends how you added the calendar, like if at the end of the new mail
account wizard or not (adding Google calendar manually might not force
OAuth2, even if supported, but I can be wrong).

You can always create a CalDAV calendar which will reference 
https://www.google.com/calendar/dav/user gmail com/events .

You might find interesting also this message:

https://mail.gnome.org/archives/evolution-list/2018-January/msg00048.html

        Bye,
        Milan