Re: [Evolution] How often should I expect OAuth2 authentication to fail ?

[Milan Crha <mcrha redhat com>]

        Hi,

On Thu, 2019-06-20 at 12:22 -0500, Japhering wrote:
> I configured Oauth2 in Google Cloud Platform Console (created the
> token/key pair ).

Hmm, I meant where you configured the Google (IMAP/SMTP) account,
whether directly in Evolution, or in some 3rd-party software. Evolution
itself asks for the token when the account is created, if the account
is configured in Evolution directly.

> Then I configured Evolution to us Oauth2 for both sending/receiving
> email with StartTLS after connecting set.

The setting for Gmail is:
   Server: imap.gmail.com
   Port: 993
   Encryption: TLS on a dedicated port
   Authentication: OAuth2 (Google)

With this it works properly for me, at least.

> So since 14/6/19, I haven't been able to connect with Oauth2.  When I
> do get an error message it is the "Failed to authenticate: Data
> source
> “<email address>” does not support OAuth 2.0 authentication" message.

Could you search in ~/.config/evolution/sources/ for all .source files
which contain the email address from the error message, and see what
value a Method key of an [Authentication] section of those files is set
to, please? It might be like this:

   [Authentication]
   Host=imap.gmail.com
   Method=Google
   Port=993
   User=<email-address>

where the 'Method=Google' means "OAuth2 against a Google server".
Having the account configured with GNOME Online Accounts, it would be
'Method=OAuth2'. There are some restrictions on the OAuth2 for accounts
configured in Evolution, it requires evolution-data-server to be
compiled with that enabled. When it is, a web page with login to the
Google server is shown when the token expires.

Any changes in those underlying files might be done when the 
evolution-source-registry process is not running, which can be tricky
to achieve in certain situations (under certain desktop environments).
You can run that process from a terminal too, maybe it writes something
interesting there.

> I saw some issues in Bugzilla that suggested it might be related to
> bug in the version I'm using so I built the 3.30 version of the
> flatpak based on the info on the Evolution-flatpak page.

Current stable series is 3.32. Why did you build 3.30? At least the
steps described here:
https://wiki.gnome.org/Apps/Evolution/Flatpak
are referring to Evolution 3.32 series. You do not need to compile it,
though, as you can get quite recent version from Flathub too.

> Same failure to connect but NO error messages or dialogs.

You can verify you run correct version in Help->About of the Evolution.
Maybe, the page mentions 3.30 of the GNOME Platform/SDK, but it doesn't
claim what version of Evolution it actually builds, which may be
confusing.
        Bye,
        Milan

P.S.: Feel free to reply only to the list (Ctrl+L in Evolution), I am
subscribed and I do reply to your messages through the list, not to you
directly, too.