Purpose
=======
The flow where we copy / paste the authorization code will be
depreciated. Because of that, we know use the newest authentication
system which use redirect URI.
Technical
=========
Now, the user is redirected to an Odoo endpoint "google_gmail/confirm"
and the access token / refresh token are automatically fetched.
Documentation
https://developers.google.com/identity/protocols/oauth2/native-app
Task-2852560
closesodoo/odoo#94476
X-original-commit: 69bd9bc6b36fdd55e8e859667bcddddad6db7d06
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>
Purpose
=======
Less secured apps are no longer supported by google, therefore, we need
to transition to the OAuth2 authentication system.
Specifications
==============
1. User will need to fill their Gmail API credentials in the main
settings page
2. Then, in the incoming / outgoing mail server form view, they will
need to tick the Gmail support checkbox
3. A link will be available to be redirected to Gmail and accept the
permission
4. The user can now copy / paste the authorization code in Odoo, set
his email as "login" and then send / receive emails with Gmail
Task-2170676
closesodoo/odoo#83424
X-original-commit: ff223afc5300b2421b8ce935bb468f503c938c5d
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>