basic authentication stuff

app/controllers/user_controller.rb

@@ -267,6 +267,23 @@ class UserController < Users::ApplicationController
     end
   end
 
+  def obtain_token
+    redirect_to user_omniauth_authorize_path('facebook') and return unless current_user.present?
+    respond_to do |format|
+      format.html { render layout: 'user/obtain_token' }
+      format.json do
+        render json: json_response(ok: false, status: 401) and return unless params[:user].present? && params[:user][:email].present? && params[:user][:password].present?
+        user = User.find_by_email(params[:user][:email])
+        render json: json_response(ok: false, status: 401) and return unless user
+        render json: json_response(ok: false, status: 401) and return unless user.valid_password?(params[:user][:password])
+        user.ensure_authentication_token
+        sign_in user
+        render json: json_response(ok: true, auth_token: user.authentication_token, user_id: user.id)
+      end
+
+    end
+  end
+
   def move_table
     render json: json_alert('messages.no_active_list', list_active: false) and return unless list.present?
     render json: json_alert('messages.table_not_found') and return unless params[:table_id].present?