From 42f7d4f8d27f64ed0eedf85ef9899f960a042665 Mon Sep 17 00:00:00 2001
From: shawn-higgins1 <23224097+shawn-higgins1@users.noreply.github.com>
Date: Tue, 23 Jul 2019 11:08:38 -0400
Subject: [PATCH] If a user only has one configured provider redirect them to
 that provider (#647)

---
 app/controllers/users_controller.rb | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index c28d1c0f..1dd7267f 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -67,6 +67,12 @@ class UsersController < ApplicationController
       flash[:alert] = I18n.t("registration.deprecated.new_signin")
       session[:old_twitter_user_id] = params[:old_twitter_user_id] unless params[:old_twitter_user_id].nil?
     end
+
+    providers = configured_providers
+    if (!allow_user_signup? || !allow_greenlight_accounts?) && providers.count == 1 &&
+       !Rails.configuration.loadbalanced_configuration
+      return redirect_to "#{Rails.configuration.relative_url_root}/auth/#{providers.first}"
+    end
   end
 
   # GET /ldap_signin