KC20 Support about oauth2-keycloak

[stefanomarty]

I had the same problem, my webapp stopped functioning after upgrading to KC20 as the call to userinfo returned a null object. I made a few tests with Postman and I found out that KC was returning "unauthorized" due to a missing 'openid' scope in the token request.

As a quick fix I added 'openid' to the getDefaultScopes() function in src/Provider/Keycloak.php:

    /**
     * Get the default scopes used by this provider.
     *
     * This should not be a complete list of all scopes, but the minimum
     * required for the provider user interface!
     *
     * @return string[]
     */
    protected function getDefaultScopes()
    {
        return ['profile', 'email', 'openid'];
    }

I understand this is just a quick fix and that there could be some other broken changes carried by the KC20 upgrade, but for the moment it fixed my webapp problem.

[mstefan21]

@micbis Released as new version 3.2.0