OAuth2 Feature missing for Google CardDav Server

[BlutVampir]

I would like to add Google CardDav Server, but as example

[apidata.googleusercontent.com]
user = [Mailadress]
pass = ****
url1 = https://apidata.googleusercontent.com/carddav/v1/principals/[Mailadress]/lists/default/

cannot work, as Google doesnt support Passwort for CardDav. It only supports Oauth2.
Can oauth2 been added?

[codeshell]

For myself, I added local vcf file support because I didn't need to save user credentials and constantly generate new exports.

As a workaround you might be able to use the additions to bridge.py in PR #4 in two ways:

• export the contacts manually and run the bridge on it.
• create your own script that exports the google file via OAuth2 and run the bridge on it.