518     $response = call_user_func_array($discover_function, [$uri, $fetcher]);
533                                                     $fetcher);
549 function Auth_OpenID_discoverURI($uri, $fetcher)  argument
552     return Auth_OpenID_discoverWithYadis($uri, $fetcher);
557  * @param Auth_Yadis_PlainHTTPFetcher $fetcher
560 function Auth_OpenID_discoverWithoutYadis($uri, $fetcher)  argument
562     $http_resp = @$fetcher->get($uri);
579 function Auth_OpenID_discoverXRI($iname, $fetcher)  argument
581     $resolver = new Auth_Yadis_ProxyResolver($fetcher);
604  * @param Auth_Yadis_PlainHTTPFetcher $fetcher
607 function Auth_OpenID_discover($uri, $fetcher)  argument
611     if ($fetcher->isHTTPS($uri) && !$fetcher->supportsSSL()) {
616         $result = Auth_OpenID_discoverXRI($uri, $fetcher);
618         $result = Auth_OpenID_discoverURI($uri, $fetcher);
623     if (!$fetcher->supportsSSL()) {
628             if (!$fetcher->isHTTPS($e->server_url)) {