fix(omniauth): Correct too many redrect error with OpenID provider (#2462)

* fix(omniauth): Correct too many redrect error with OpenID provider

This fix avoids "Too Many redirects" error with login with OpenID and without terms

* Correct code for travis rules checks

Replace if not by unless to fulfill requirements by travis

* Update authenticator.rb

* Remove trailing space

Co-authored-by: Ahmad Farhat <ahmad.af.farhat@gmail.com>

app/controllers/concerns/authenticator.rb

@@ -45,6 +45,11 @@ module Authenticator
       # Dont redirect to any of these urls
       dont_redirect_to = [root_url, signin_url, ldap_signin_url, ldap_callback_url, signup_url, unauthorized_url,
                           internal_error_url, not_found_url]
+
+      unless ENV['OAUTH2_REDIRECT'].nil?
+        dont_redirect_to.push(File.join(ENV['OAUTH2_REDIRECT'], "auth", "openid_connect", "callback"))
+      end
+
       url = if cookies[:return_to] && !dont_redirect_to.include?(cookies[:return_to])
         cookies[:return_to]
       elsif user.role.get_permission("can_create_rooms")