code: def _add_ssl_info(self):
          
          if self.scheme == u'https':
              sock = self._get_ssl_sock()
              if hasattr(sock, 'cipher'):
                  self.ssl_cert = sock.getpeercert()
              else:
                  # using pyopenssl
                  cert = sock.connection.get_peer_certificate()
                  self.ssl_cert = httputil.x509_to_dict(cert)
              log.debug(LOG_CHECK, "Got SSL certificate %s", self.ssl_cert)
          else:
              self.ssl_cert = None
docs: Add SSL cipher info.