# This method allows the app to figure out what username and password were passed
# via basic http auth. Because calling #authenticate_or_request_with_http_basic will
# fail if no password was sent, I had to hack in my own check (taken from the Rails
# source) to make sure that they tried to auth.

  def get_credentials
    log_it

    # Grabbed from the rails source...if the user sent auth data...
    if ( request.env['HTTP_AUTHORIZATION']   ||
         request.env['X-HTTP_AUTHORIZATION'] ||
         request.env['X_HTTP_AUTHORIZATION'] ||
         request.env['REDIRECT_X_HTTP_AUTHORIZATION']
        ) then
      authenticate_or_request_with_http_basic do |username, password|
        @username = username
        @password = password
      end
    end
    true
  end