+
+ /**
+ * Checks if the given contact url does support DFRN
+ *
+ * @param string $url profile url
+ * @param boolean $update Update the profile
+ * @return boolean
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
+ */
+ public static function isSupportedByContactUrl($url, $update = false)
+ {
+ $probe = Probe::uri($url, Protocol::DFRN, 0, !$update);
+ return $probe['network'] == Protocol::DFRN;
+ }