sessions_controller.rb

class SessionsController < Devise::SessionsController
  def new
    redirect_path =
      if request.referer.present? && (params['redirect_to_referer'] == 'yes')
        referer_uri = URI(request.referer)
        if referer_uri.host == Gitlab.config.gitlab.host
          referer_uri.path
        else
          request.fullpath
        end
      else
        request.fullpath
      end

    # Prevent a 'you are already signed in' message directly after signing:
    # we should never redirect to '/users/sign_in' after signing in successfully.
    unless redirect_path == '/users/sign_in'
      store_location_for(:redirect, redirect_path)
    end

    if Gitlab.config.ldap.enabled
      @ldap_servers = Gitlab::LDAP::Config.servers
    end

    super
  end

  def create
    super
  end
end