/** * Look up and if necessary create an Ostatus_profile for the remote entity * with the given profile page URL. This should never return null -- you * will either get an object or an exception will be thrown. * * @param string $profile_url * @return Ostatus_profile * @throws Exception on various error conditions * @throws OStatusShadowException if this reference would obscure a local user/group */ public static function ensureProfileURL($profile_url, $hints = array()) { $oprofile = self::getFromProfileURL($profile_url); if (!empty($oprofile)) { return $oprofile; } $hints['profileurl'] = $profile_url; // Fetch the URL // XXX: HTTP caching $client = new HTTPClient(); $client->setHeader('Accept', 'text/html,application/xhtml+xml'); $response = $client->get($profile_url); if (!$response->isOk()) { // TRANS: Exception. %s is a profile URL. throw new Exception(sprintf(_m('Could not reach profile page %s.'), $profile_url)); } // Check if we have a non-canonical URL $finalUrl = $response->getUrl(); if ($finalUrl != $profile_url) { $hints['profileurl'] = $finalUrl; $oprofile = self::getFromProfileURL($finalUrl); if (!empty($oprofile)) { return $oprofile; } } // Try to get some hCard data $body = $response->getBody(); $hcardHints = DiscoveryHints::hcardHints($body, $finalUrl); if (!empty($hcardHints)) { $hints = array_merge($hints, $hcardHints); } // Check if they've got an LRDD header $lrdd = LinkHeader::getLink($response, 'lrdd', 'application/xrd+xml'); if (!empty($lrdd)) { $xrd = Discovery::fetchXrd($lrdd); $xrdHints = DiscoveryHints::fromXRD($xrd); $hints = array_merge($hints, $xrdHints); } // If discovery found a feedurl (probably from LRDD), use it. if (array_key_exists('feedurl', $hints)) { return self::ensureFeedURL($hints['feedurl'], $hints); } // Get the feed URL from HTML $discover = new FeedDiscovery(); $feedurl = $discover->discoverFromHTML($finalUrl, $body); if (!empty($feedurl)) { $hints['feedurl'] = $feedurl; return self::ensureFeedURL($feedurl, $hints); } // TRANS: Exception. %s is a URL. throw new Exception(sprintf(_m('Could not find a feed URL for profile page %s.'), $finalUrl)); }
public function discover($uri) { if (Discovery::isWebfinger($uri)) { // We have a webfinger acct: - start with host-meta list($name, $domain) = explode('@', $uri); } else { $domain = parse_url($uri, PHP_URL_HOST); } $url = 'http://' . $domain . '/.well-known/host-meta'; $xrd = Discovery::fetchXrd($url); if ($xrd) { if ($xrd->host != $domain) { return false; } return $xrd->links; } }