3 * @file src/Network/Probe.php
5 namespace Friendica\Network;
8 * @file src/Network/Probe.php
9 * @brief Functions for probing URL
14 use Friendica\Core\Cache;
15 use Friendica\Core\Config;
16 use Friendica\Core\Logger;
17 use Friendica\Core\Protocol;
18 use Friendica\Core\System;
19 use Friendica\Database\DBA;
20 use Friendica\Model\Contact;
21 use Friendica\Model\Profile;
22 use Friendica\Protocol\ActivityNamespace;
23 use Friendica\Protocol\ActivityPub;
24 use Friendica\Protocol\Email;
25 use Friendica\Protocol\Feed;
26 use Friendica\Util\Crypto;
27 use Friendica\Util\Network;
28 use Friendica\Util\Strings;
29 use Friendica\Util\XML;
32 * @brief This class contain functions for probing URL
37 private static $baseurl;
38 private static $istimeout;
41 * @brief Rearrange the array so that it always has the same order
43 * @param array $data Unordered data
45 * @return array Ordered data
47 private static function rearrangeData($data)
49 $fields = ["name", "nick", "guid", "url", "addr", "alias", "photo", "account-type",
50 "community", "keywords", "location", "about", "gender", "hide",
51 "batch", "notify", "poll", "request", "confirm", "poco",
52 "following", "followers", "inbox", "outbox", "sharedinbox",
53 "priority", "network", "pubkey", "baseurl"];
56 foreach ($fields as $field) {
57 if (isset($data[$field])) {
58 $newdata[$field] = $data[$field];
60 $newdata[$field] = "";
64 // We don't use the "priority" field anymore and replace it with a dummy.
65 $newdata["priority"] = 0;
71 * @brief Check if the hostname belongs to the own server
73 * @param string $host The hostname that is to be checked
75 * @return bool Does the testes hostname belongs to the own server?
77 private static function ownHost($host)
79 $own_host = \get_app()->getHostName();
81 $parts = parse_url($host);
83 if (!isset($parts['scheme'])) {
84 $parts = parse_url('http://'.$host);
87 if (!isset($parts['host'])) {
90 return $parts['host'] == $own_host;
94 * @brief Probes for webfinger path via "host-meta"
96 * We have to check if the servers in the future still will offer this.
97 * It seems as if it was dropped from the standard.
99 * @param string $host The host part of an url
101 * @return array with template and type of the webfinger template for JSON or XML
102 * @throws HTTPException\InternalServerErrorException
104 private static function hostMeta($host)
106 // Reset the static variable
109 $ssl_url = "https://".$host."/.well-known/host-meta";
110 $url = "http://".$host."/.well-known/host-meta";
112 $xrd_timeout = Config::get('system', 'xrd_timeout', 20);
114 Logger::log("Probing for ".$host, Logger::DEBUG);
117 $curlResult = Network::curl($ssl_url, false, ['timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml']);
118 if ($curlResult->isSuccess()) {
119 $xml = $curlResult->getBody();
120 $xrd = XML::parseString($xml, false);
121 $host_url = 'https://'.$host;
124 if (!is_object($xrd)) {
125 $curlResult = Network::curl($url, false, ['timeout' => $xrd_timeout, 'accept_content' => 'application/xrd+xml']);
126 if ($curlResult->isTimeout()) {
127 Logger::log("Probing timeout for " . $url, Logger::DEBUG);
128 self::$istimeout = true;
131 $xml = $curlResult->getBody();
132 $xrd = XML::parseString($xml, false);
133 $host_url = 'http://'.$host;
135 if (!is_object($xrd)) {
136 Logger::log("No xrd object found for ".$host, Logger::DEBUG);
140 $links = XML::elementToArray($xrd);
141 if (!isset($links["xrd"]["link"])) {
142 Logger::log("No xrd data found for ".$host, Logger::DEBUG);
146 $lrdd = ['application/jrd+json' => $host_url . '/.well-known/webfinger?resource={uri}'];
148 foreach ($links["xrd"]["link"] as $value => $link) {
149 if (!empty($link["@attributes"])) {
150 $attributes = $link["@attributes"];
151 } elseif ($value == "@attributes") {
157 if (!empty($attributes["rel"]) && $attributes["rel"] == "lrdd" && !empty($attributes["template"])) {
158 $type = (empty($attributes["type"]) ? '' : $attributes["type"]);
160 $lrdd[$type] = $attributes["template"];
164 self::$baseurl = $host_url;
166 Logger::log("Probing successful for ".$host, Logger::DEBUG);
172 * @brief Perform Webfinger lookup and return DFRN data
174 * Given an email style address, perform webfinger lookup and
175 * return the resulting DFRN profile URL, or if no DFRN profile URL
176 * is located, returns an OStatus subscription template (prefixed
177 * with the string 'stat:' to identify it as on OStatus template).
178 * If this isn't an email style address just return $webbie.
179 * Return an empty string if email-style addresses but webfinger fails,
180 * or if the resultant personal XRD doesn't contain a supported
181 * subscription/friend-request attribute.
183 * amended 7/9/2011 to return an hcard which could save potentially loading
184 * a lengthy content page to scrape dfrn attributes
186 * @param string $webbie Address that should be probed
187 * @param string $hcard_url Link to the hcard - is returned by reference
189 * @return string profile link
190 * @throws HTTPException\InternalServerErrorException
192 public static function webfingerDfrn($webbie, &$hcard_url)
196 $links = self::lrdd($webbie);
197 Logger::log('webfingerDfrn: '.$webbie.':'.print_r($links, true), Logger::DATA);
198 if (!empty($links) && is_array($links)) {
199 foreach ($links as $link) {
200 if ($link['@attributes']['rel'] === ActivityNamespace::DFRN) {
201 $profile_link = $link['@attributes']['href'];
203 if (($link['@attributes']['rel'] === ActivityNamespace::OSTATUSSUB) && ($profile_link == "")) {
204 $profile_link = 'stat:'.$link['@attributes']['template'];
206 if ($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard') {
207 $hcard_url = $link['@attributes']['href'];
211 return $profile_link;
215 * @brief Check an URI for LRDD data
217 * this is a replacement for the "lrdd" function.
218 * It isn't used in this class and has some redundancies in the code.
219 * When time comes we can check the existing calls for "lrdd" if we can rework them.
221 * @param string $uri Address that should be probed
223 * @return array uri data
224 * @throws HTTPException\InternalServerErrorException
226 public static function lrdd($uri)
228 $lrdd = self::hostMeta($uri);
231 if (is_bool($lrdd)) {
236 $parts = @parse_url($uri);
237 if (!$parts || empty($parts["host"]) || empty($parts["path"])) {
241 $host = $parts["host"];
242 if (!empty($parts["port"])) {
243 $host .= ':'.$parts["port"];
246 $path_parts = explode("/", trim($parts["path"], "/"));
248 $nick = array_pop($path_parts);
251 $lrdd = self::hostMeta($host);
252 $host .= "/".array_shift($path_parts);
253 } while (!$lrdd && (sizeof($path_parts) > 0));
257 Logger::log("No lrdd data found for ".$uri, Logger::DEBUG);
261 foreach ($lrdd as $type => $template) {
266 $path = str_replace('{uri}', urlencode($uri), $template);
267 $webfinger = self::webfinger($path, $type);
269 if (!$webfinger && (strstr($uri, "@"))) {
270 $path = str_replace('{uri}', urlencode("acct:".$uri), $template);
271 $webfinger = self::webfinger($path, $type);
274 // Special treatment for Mastodon
275 // Problem is that Mastodon uses an URL format like http://domain.tld/@nick
276 // But the webfinger for this format fails.
277 if (!$webfinger && !empty($nick)) {
278 // Mastodon uses a "@" as prefix for usernames in their url format
279 $nick = ltrim($nick, '@');
281 $addr = $nick."@".$host;
283 $path = str_replace('{uri}', urlencode("acct:".$addr), $template);
284 $webfinger = self::webfinger($path, $type);
288 if (!is_array($webfinger["links"])) {
289 Logger::log("No webfinger links found for ".$uri, Logger::DEBUG);
295 foreach ($webfinger["links"] as $link) {
296 $data[] = ["@attributes" => $link];
299 if (is_array($webfinger["aliases"])) {
300 foreach ($webfinger["aliases"] as $alias) {
301 $data[] = ["@attributes" =>
311 * @brief Fetch information (protocol endpoints and user information) about a given uri
313 * @param string $uri Address that should be probed
314 * @param string $network Test for this specific network
315 * @param integer $uid User ID for the probe (only used for mails)
316 * @param boolean $cache Use cached values?
318 * @return array uri data
319 * @throws HTTPException\InternalServerErrorException
320 * @throws \ImagickException
322 public static function uri($uri, $network = '', $uid = -1, $cache = true)
325 $result = Cache::get('Probe::uri:' . $network . ':' . $uri);
326 if (!is_null($result)) {
335 self::$istimeout = false;
337 if ($network != Protocol::ACTIVITYPUB) {
338 $data = self::detect($uri, $network, $uid);
343 // When the previous detection process had got a time out
344 // we could falsely detect a Friendica profile as AP profile.
345 if (!self::$istimeout) {
346 $ap_profile = ActivityPub::probeProfile($uri);
348 if (empty($data) || (!empty($ap_profile) && empty($network) && (($data['network'] ?? '') != Protocol::DFRN))) {
350 } elseif (!empty($ap_profile)) {
351 $ap_profile['batch'] = '';
352 $data = array_merge($ap_profile, $data);
355 Logger::notice('Time out detected. AP will not be probed.', ['uri' => $uri]);
358 if (!isset($data['url'])) {
362 if (!empty($data['photo']) && !empty($data["baseurl"])) {
363 $data['baseurl'] = Network::getUrlMatch(Strings::normaliseLink($data['baseurl']), Strings::normaliseLink($data['photo']));
364 } elseif (empty($data['photo'])) {
365 $data['photo'] = System::baseUrl() . '/images/person-300.jpg';
368 if (empty($data['name'])) {
369 if (!empty($data['nick'])) {
370 $data['name'] = $data['nick'];
373 if (empty($data['name'])) {
374 $data['name'] = $data['url'];
378 if (empty($data['nick'])) {
379 $data['nick'] = strtolower($data['name']);
381 if (strpos($data['nick'], ' ')) {
382 $data['nick'] = trim(substr($data['nick'], 0, strpos($data['nick'], ' ')));
386 if (!empty(self::$baseurl)) {
387 $data['baseurl'] = self::$baseurl;
390 if (empty($data['network'])) {
391 $data['network'] = Protocol::PHANTOM;
394 if (!isset($data['hide']) && in_array($data['network'], Protocol::FEDERATED)) {
395 $data['hide'] = self::getHideStatus($data['url']);
398 $data = self::rearrangeData($data);
400 // Only store into the cache if the value seems to be valid
401 if (!in_array($data['network'], [Protocol::PHANTOM, Protocol::MAIL])) {
402 Cache::set('Probe::uri:' . $network . ':' . $uri, $data, Cache::DAY);
410 * Fetches the "hide" status from the profile
412 * @param string $url URL of the profile
414 * @return boolean "hide" status
416 private static function getHideStatus($url)
418 $curlResult = Network::curl($url);
419 if (!$curlResult->isSuccess()) {
423 // If the file is too large then exit
424 if (($curlResult->getInfo()['download_content_length'] ?? 0) > 1000000) {
428 // If it isn't a HTML file then exit
429 if (($curlResult->getContentType() != '') && !strstr(strtolower($curlResult->getContentType()), 'html')) {
433 $body = $curlResult->getBody();
435 $doc = new DOMDocument();
436 @$doc->loadHTML($body);
438 $xpath = new DOMXPath($doc);
440 $list = $xpath->query('//meta[@name]');
441 foreach ($list as $node) {
443 if ($node->attributes->length) {
444 foreach ($node->attributes as $attribute) {
445 $meta_tag[$attribute->name] = $attribute->value;
449 if (empty($meta_tag['content'])) {
453 $content = strtolower(trim($meta_tag['content']));
455 switch (strtolower(trim($meta_tag['name']))) {
456 case 'dfrn-global-visibility':
457 if ($content == 'false') {
462 if (strpos($content, 'noindex') !== false) {
473 * @brief Checks if a profile url should be OStatus but only provides partial information
475 * @param array $webfinger Webfinger data
476 * @param string $lrdd Path template for webfinger request
477 * @param string $type type
479 * @return array fixed webfinger data
480 * @throws HTTPException\InternalServerErrorException
482 private static function fixOStatus($webfinger, $lrdd, $type)
484 if (empty($webfinger['links']) || empty($webfinger['subject'])) {
491 foreach ($webfinger['links'] as $link) {
492 if ($link['rel'] == ActivityNamespace::OSTATUSSUB) {
495 if ($link['rel'] == 'magic-public-key') {
500 if (!$is_ostatus || $has_key) {
504 $url = Network::switchScheme($webfinger['subject']);
505 $path = str_replace('{uri}', urlencode($url), $lrdd);
506 $webfinger2 = self::webfinger($path, $type);
508 // Is the new webfinger detectable as OStatus?
509 if (self::ostatus($webfinger2, true)) {
510 $webfinger = $webfinger2;
517 * @brief Fetch information (protocol endpoints and user information) about a given uri
519 * This function is only called by the "uri" function that adds caching and rearranging of data.
521 * @param string $uri Address that should be probed
522 * @param string $network Test for this specific network
523 * @param integer $uid User ID for the probe (only used for mails)
525 * @return array uri data
526 * @throws HTTPException\InternalServerErrorException
528 private static function detect($uri, $network, $uid)
530 $parts = parse_url($uri);
532 if (!empty($parts["scheme"]) && !empty($parts["host"])) {
533 $host = $parts["host"];
534 if (!empty($parts["port"])) {
535 $host .= ':'.$parts["port"];
538 if ($host == 'twitter.com') {
539 return self::twitter($uri);
541 $lrdd = self::hostMeta($host);
543 if (is_bool($lrdd)) {
547 $path_parts = explode("/", trim($parts['path'] ?? '', "/"));
549 while (!$lrdd && (sizeof($path_parts) > 1)) {
550 $host .= "/".array_shift($path_parts);
551 $lrdd = self::hostMeta($host);
554 Logger::log('No XRD data was found for '.$uri, Logger::DEBUG);
555 return self::feed($uri);
557 $nick = array_pop($path_parts);
559 // Mastodon uses a "@" as prefix for usernames in their url format
560 $nick = ltrim($nick, '@');
562 $addr = $nick."@".$host;
563 } elseif (strstr($uri, '@')) {
564 // If the URI starts with "mailto:" then jump directly to the mail detection
565 if (strpos($uri, 'mailto:') !== false) {
566 $uri = str_replace('mailto:', '', $uri);
567 return self::mail($uri, $uid);
570 if ($network == Protocol::MAIL) {
571 return self::mail($uri, $uid);
573 // Remove "acct:" from the URI
574 $uri = str_replace('acct:', '', $uri);
576 $host = substr($uri, strpos($uri, '@') + 1);
577 $nick = substr($uri, 0, strpos($uri, '@'));
579 if (strpos($uri, '@twitter.com')) {
580 return self::twitter($uri);
582 $lrdd = self::hostMeta($host);
584 if (is_bool($lrdd)) {
589 Logger::log('No XRD data was found for '.$uri, Logger::DEBUG);
590 return self::mail($uri, $uid);
594 Logger::log("Uri ".$uri." was not detectable", Logger::DEBUG);
600 /// @todo Do we need the prefix "acct:" or "acct://"?
602 foreach ($lrdd as $type => $template) {
607 // At first try it with the given uri
608 $path = str_replace('{uri}', urlencode($uri), $template);
609 $webfinger = self::webfinger($path, $type);
611 // Fix possible problems with GNU Social probing to wrong scheme
612 $webfinger = self::fixOStatus($webfinger, $template, $type);
614 // We cannot be sure that the detected address was correct, so we don't use the values
615 if ($webfinger && ($uri != $addr)) {
620 // Try webfinger with the address (user@domain.tld)
622 $path = str_replace('{uri}', urlencode($addr), $template);
623 $webfinger = self::webfinger($path, $type);
626 // Mastodon needs to have it with "acct:"
628 $path = str_replace('{uri}', urlencode("acct:".$addr), $template);
629 $webfinger = self::webfinger($path, $type);
634 return self::feed($uri);
639 Logger::log("Probing ".$uri, Logger::DEBUG);
641 if (in_array($network, ["", Protocol::DFRN])) {
642 $result = self::dfrn($webfinger);
644 if ((empty($result['network']) && ($network == "")) || ($network == Protocol::DIASPORA)) {
645 $result = self::diaspora($webfinger, $result);
647 if ((empty($result['network']) && ($network == "")) || ($network == Protocol::OSTATUS)) {
648 $result = self::ostatus($webfinger, false, $result);
650 if ((empty($result['network']) && ($network == "")) || ($network == Protocol::PUMPIO)) {
651 $result = self::pumpio($webfinger, $addr, $result);
653 if ((empty($result['network']) && ($network == "")) || ($network == Protocol::ZOT)) {
654 $result = self::zot($webfinger, $result);
656 if ((empty($result['network']) && ($network == "")) || ($network == Protocol::FEED)) {
657 $result = self::feed($uri, true, $result);
659 // We overwrite the detected nick with our try if the previois routines hadn't detected it.
660 // Additionally it is overwritten when the nickname doesn't make sense (contains spaces).
661 if ((empty($result["nick"]) || (strstr($result["nick"], " "))) && ($nick != "")) {
662 $result["nick"] = $nick;
665 if (empty($result["addr"]) && ($addr != "")) {
666 $result["addr"] = $addr;
670 if (empty($result["network"])) {
671 $result["network"] = Protocol::PHANTOM;
674 if (empty($result["url"])) {
675 $result["url"] = $uri;
678 Logger::log($uri." is ".$result["network"], Logger::DEBUG);
680 if (empty($result["baseurl"]) && ($result["network"] != Protocol::PHANTOM)) {
681 $pos = strpos($result["url"], $host);
683 $result["baseurl"] = substr($result["url"], 0, $pos).$host;
690 * Check for Zot contact
692 * @param array $webfinger Webfinger data
693 * @param array $data previously probed data
695 * @return array Zot data
696 * @throws HTTPException\InternalServerErrorException
698 private static function zot($webfinger, $data)
701 foreach ($webfinger['links'] as $link) {
702 if (($link['rel'] == 'http://purl.org/zot/protocol') && !empty($link['href'])) {
703 $zot_url = $link['href'];
707 if (empty($zot_url) && !empty($data['addr']) && !empty(self::$baseurl)) {
708 $zot_url = self::$baseurl . '/.well-known/zot-info?address=' . $data['addr'];
711 if (!empty($zot_url)) {
712 $data = self::pollZot($zot_url, $data);
718 public static function pollZot($url, $data)
720 $curlResult = Network::curl($url);
721 if ($curlResult->isTimeout()) {
724 $content = $curlResult->getBody();
729 $json = json_decode($content, true);
730 if (!is_array($json)) {
734 if (!empty($json['protocols']) && in_array('zot', $json['protocols'])) {
735 $data['network'] = Protocol::ZOT;
736 } elseif (!isset($json['protocols'])) {
737 $data['network'] = Protocol::ZOT;
740 if (!empty($json['guid'])) {
741 $data['guid'] = $json['guid'];
743 if (!empty($json['key'])) {
744 $data['pubkey'] = $json['key'];
746 if (!empty($json['name'])) {
747 $data['name'] = $json['name'];
749 if (!empty($json['photo']) && empty($data['photo'])) {
750 $data['photo'] = $json['photo'];
752 if (!empty($json['address'])) {
753 $data['addr'] = $json['address'];
755 if (!empty($json['url'])) {
756 $data['url'] = $json['url'];
758 if (!empty($json['connections_url'])) {
759 $data['poco'] = $json['connections_url'];
761 if (isset($json['searchable'])) {
762 $data['hide'] = !$json['searchable'];
764 if (!empty($json['public_forum'])) {
765 $data['community'] = $json['public_forum'];
766 $data['account-type'] = Contact::PAGE_COMMUNITY;
769 if (!empty($json['profile'])) {
770 $profile = $json['profile'];
771 if (!empty($profile['description'])) {
772 $data['about'] = $profile['description'];
774 if (!empty($profile['gender'])) {
775 $data['gender'] = $profile['gender'];
777 if (!empty($profile['keywords'])) {
778 $keywords = implode(', ', $profile['keywords']);
779 if (!empty($keywords)) {
780 $data['keywords'] = $keywords;
785 if (!empty($profile['region'])) {
786 $loc['region'] = $profile['region'];
788 if (!empty($profile['country'])) {
789 $loc['country-name'] = $profile['country'];
791 if (!empty($profile['hometown'])) {
792 $loc['locality'] = $profile['hometown'];
794 $location = Profile::formatLocation($loc);
795 if (!empty($location)) {
796 $data['location'] = $location;
804 * @brief Perform a webfinger request.
806 * For details see RFC 7033: <https://tools.ietf.org/html/rfc7033>
808 * @param string $url Address that should be probed
809 * @param string $type type
811 * @return array webfinger data
812 * @throws HTTPException\InternalServerErrorException
814 private static function webfinger($url, $type)
816 $xrd_timeout = Config::get('system', 'xrd_timeout', 20);
818 $curlResult = Network::curl($url, false, ['timeout' => $xrd_timeout, 'accept_content' => $type]);
819 if ($curlResult->isTimeout()) {
820 self::$istimeout = true;
823 $data = $curlResult->getBody();
825 $webfinger = json_decode($data, true);
826 if (is_array($webfinger)) {
827 if (!isset($webfinger["links"])) {
828 Logger::log("No json webfinger links for ".$url, Logger::DEBUG);
834 // If it is not JSON, maybe it is XML
835 $xrd = XML::parseString($data, false);
836 if (!is_object($xrd)) {
837 Logger::log("No webfinger data retrievable for ".$url, Logger::DEBUG);
841 $xrd_arr = XML::elementToArray($xrd);
842 if (!isset($xrd_arr["xrd"]["link"])) {
843 Logger::log("No XML webfinger links for ".$url, Logger::DEBUG);
849 if (!empty($xrd_arr["xrd"]["subject"])) {
850 $webfinger["subject"] = $xrd_arr["xrd"]["subject"];
853 if (!empty($xrd_arr["xrd"]["alias"])) {
854 $webfinger["aliases"] = $xrd_arr["xrd"]["alias"];
857 $webfinger["links"] = [];
859 foreach ($xrd_arr["xrd"]["link"] as $value => $data) {
860 if (!empty($data["@attributes"])) {
861 $attributes = $data["@attributes"];
862 } elseif ($value == "@attributes") {
868 $webfinger["links"][] = $attributes;
874 * @brief Poll the Friendica specific noscrape page.
876 * "noscrape" is a faster alternative to fetch the data from the hcard.
877 * This functionality was originally created for the directory.
879 * @param string $noscrape_url Link to the noscrape page
880 * @param array $data The already fetched data
882 * @return array noscrape data
883 * @throws HTTPException\InternalServerErrorException
885 private static function pollNoscrape($noscrape_url, $data)
887 $curlResult = Network::curl($noscrape_url);
888 if ($curlResult->isTimeout()) {
889 self::$istimeout = true;
892 $content = $curlResult->getBody();
894 Logger::log("Empty body for ".$noscrape_url, Logger::DEBUG);
898 $json = json_decode($content, true);
899 if (!is_array($json)) {
900 Logger::log("No json data for ".$noscrape_url, Logger::DEBUG);
904 if (!empty($json["fn"])) {
905 $data["name"] = $json["fn"];
908 if (!empty($json["addr"])) {
909 $data["addr"] = $json["addr"];
912 if (!empty($json["nick"])) {
913 $data["nick"] = $json["nick"];
916 if (!empty($json["guid"])) {
917 $data["guid"] = $json["guid"];
920 if (!empty($json["comm"])) {
921 $data["community"] = $json["comm"];
924 if (!empty($json["tags"])) {
925 $keywords = implode(", ", $json["tags"]);
926 if ($keywords != "") {
927 $data["keywords"] = $keywords;
931 $location = Profile::formatLocation($json);
933 $data["location"] = $location;
936 if (!empty($json["about"])) {
937 $data["about"] = $json["about"];
940 if (!empty($json["gender"])) {
941 $data["gender"] = $json["gender"];
944 if (!empty($json["key"])) {
945 $data["pubkey"] = $json["key"];
948 if (!empty($json["photo"])) {
949 $data["photo"] = $json["photo"];
952 if (!empty($json["dfrn-request"])) {
953 $data["request"] = $json["dfrn-request"];
956 if (!empty($json["dfrn-confirm"])) {
957 $data["confirm"] = $json["dfrn-confirm"];
960 if (!empty($json["dfrn-notify"])) {
961 $data["notify"] = $json["dfrn-notify"];
964 if (!empty($json["dfrn-poll"])) {
965 $data["poll"] = $json["dfrn-poll"];
968 if (isset($json["hide"])) {
969 $data["hide"] = (bool)$json["hide"];
971 $data["hide"] = false;
978 * @brief Check for valid DFRN data
980 * @param array $data DFRN data
982 * @return int Number of errors
984 public static function validDfrn($data)
987 if (!isset($data['key'])) {
990 if (!isset($data['dfrn-request'])) {
993 if (!isset($data['dfrn-confirm'])) {
996 if (!isset($data['dfrn-notify'])) {
999 if (!isset($data['dfrn-poll'])) {
1006 * @brief Fetch data from a DFRN profile page and via "noscrape"
1008 * @param string $profile_link Link to the profile page
1010 * @return array profile data
1011 * @throws HTTPException\InternalServerErrorException
1012 * @throws \ImagickException
1014 public static function profile($profile_link)
1018 Logger::log("Check profile ".$profile_link, Logger::DEBUG);
1020 // Fetch data via noscrape - this is faster
1021 $noscrape_url = str_replace(["/hcard/", "/profile/"], "/noscrape/", $profile_link);
1022 $data = self::pollNoscrape($noscrape_url, $data);
1024 if (!isset($data["notify"])
1025 || !isset($data["confirm"])
1026 || !isset($data["request"])
1027 || !isset($data["poll"])
1028 || !isset($data["name"])
1029 || !isset($data["photo"])
1031 $data = self::pollHcard($profile_link, $data, true);
1036 if (empty($data["addr"]) || empty($data["nick"])) {
1037 $probe_data = self::uri($profile_link);
1038 $data["addr"] = ($data["addr"] ?? '') ?: $probe_data["addr"];
1039 $data["nick"] = ($data["nick"] ?? '') ?: $probe_data["nick"];
1042 $prof_data["addr"] = $data["addr"];
1043 $prof_data["nick"] = $data["nick"];
1044 $prof_data["dfrn-request"] = $data['request'] ?? null;
1045 $prof_data["dfrn-confirm"] = $data['confirm'] ?? null;
1046 $prof_data["dfrn-notify"] = $data['notify'] ?? null;
1047 $prof_data["dfrn-poll"] = $data['poll'] ?? null;
1048 $prof_data["photo"] = $data['photo'] ?? null;
1049 $prof_data["fn"] = $data['name'] ?? null;
1050 $prof_data["key"] = $data['pubkey'] ?? null;
1052 Logger::log("Result for profile ".$profile_link.": ".print_r($prof_data, true), Logger::DEBUG);
1058 * @brief Check for DFRN contact
1060 * @param array $webfinger Webfinger data
1062 * @return array DFRN data
1063 * @throws HTTPException\InternalServerErrorException
1065 private static function dfrn($webfinger)
1069 // The array is reversed to take into account the order of preference for same-rel links
1070 // See: https://tools.ietf.org/html/rfc7033#section-4.4.4
1071 foreach (array_reverse($webfinger["links"]) as $link) {
1072 if (($link["rel"] == ActivityNamespace::DFRN) && !empty($link["href"])) {
1073 $data["network"] = Protocol::DFRN;
1074 } elseif (($link["rel"] == ActivityNamespace::FEED) && !empty($link["href"])) {
1075 $data["poll"] = $link["href"];
1076 } elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") && (($link["type"] ?? "") == "text/html") && !empty($link["href"])) {
1077 $data["url"] = $link["href"];
1078 } elseif (($link["rel"] == "http://microformats.org/profile/hcard") && !empty($link["href"])) {
1079 $hcard_url = $link["href"];
1080 } elseif (($link["rel"] == ActivityNamespace::POCO) && !empty($link["href"])) {
1081 $data["poco"] = $link["href"];
1082 } elseif (($link["rel"] == "http://webfinger.net/rel/avatar") && !empty($link["href"])) {
1083 $data["photo"] = $link["href"];
1084 } elseif (($link["rel"] == "http://joindiaspora.com/seed_location") && !empty($link["href"])) {
1085 $data["baseurl"] = trim($link["href"], '/');
1086 } elseif (($link["rel"] == "http://joindiaspora.com/guid") && !empty($link["href"])) {
1087 $data["guid"] = $link["href"];
1088 } elseif (($link["rel"] == "diaspora-public-key") && !empty($link["href"])) {
1089 $data["pubkey"] = base64_decode($link["href"]);
1091 //if (strstr($data["pubkey"], 'RSA ') || ($link["type"] == "RSA"))
1092 if (strstr($data["pubkey"], 'RSA ')) {
1093 $data["pubkey"] = Crypto::rsaToPem($data["pubkey"]);
1098 if (!empty($webfinger["aliases"]) && is_array($webfinger["aliases"])) {
1099 foreach ($webfinger["aliases"] as $alias) {
1100 if (empty($data["url"]) && !strstr($alias, "@")) {
1101 $data["url"] = $alias;
1102 } elseif (!strstr($alias, "@") && Strings::normaliseLink($alias) != Strings::normaliseLink($data["url"])) {
1103 $data["alias"] = $alias;
1104 } elseif (substr($alias, 0, 5) == 'acct:') {
1105 $data["addr"] = substr($alias, 5);
1110 if (!empty($webfinger["subject"]) && (substr($webfinger["subject"], 0, 5) == "acct:")) {
1111 $data["addr"] = substr($webfinger["subject"], 5);
1114 if (!isset($data["network"]) || ($hcard_url == "")) {
1118 // Fetch data via noscrape - this is faster
1119 $noscrape_url = str_replace("/hcard/", "/noscrape/", $hcard_url);
1120 $data = self::pollNoscrape($noscrape_url, $data);
1122 if (isset($data["notify"])
1123 && isset($data["confirm"])
1124 && isset($data["request"])
1125 && isset($data["poll"])
1126 && isset($data["name"])
1127 && isset($data["photo"])
1132 $data = self::pollHcard($hcard_url, $data, true);
1138 * @brief Poll the hcard page (Diaspora and Friendica specific)
1140 * @param string $hcard_url Link to the hcard page
1141 * @param array $data The already fetched data
1142 * @param boolean $dfrn Poll DFRN specific data
1144 * @return array hcard data
1145 * @throws HTTPException\InternalServerErrorException
1147 private static function pollHcard($hcard_url, $data, $dfrn = false)
1149 $curlResult = Network::curl($hcard_url);
1150 if ($curlResult->isTimeout()) {
1151 self::$istimeout = true;
1154 $content = $curlResult->getBody();
1159 $doc = new DOMDocument();
1160 if (!@$doc->loadHTML($content)) {
1164 $xpath = new DomXPath($doc);
1166 $vcards = $xpath->query("//div[contains(concat(' ', @class, ' '), ' vcard ')]");
1167 if (!is_object($vcards)) {
1171 if (!isset($data["baseurl"])) {
1172 $data["baseurl"] = "";
1175 if ($vcards->length > 0) {
1176 $vcard = $vcards->item(0);
1178 // We have to discard the guid from the hcard in favour of the guid from lrdd
1179 // Reason: Hubzilla doesn't use the value "uid" in the hcard like Diaspora does.
1180 $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' uid ')]", $vcard); // */
1181 if (($search->length > 0) && empty($data["guid"])) {
1182 $data["guid"] = $search->item(0)->nodeValue;
1185 $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' nickname ')]", $vcard); // */
1186 if ($search->length > 0) {
1187 $data["nick"] = $search->item(0)->nodeValue;
1190 $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' fn ')]", $vcard); // */
1191 if ($search->length > 0) {
1192 $data["name"] = $search->item(0)->nodeValue;
1195 $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' searchable ')]", $vcard); // */
1196 if ($search->length > 0) {
1197 $data["searchable"] = $search->item(0)->nodeValue;
1200 $search = $xpath->query("//*[contains(concat(' ', @class, ' '), ' key ')]", $vcard); // */
1201 if ($search->length > 0) {
1202 $data["pubkey"] = $search->item(0)->nodeValue;
1203 if (strstr($data["pubkey"], 'RSA ')) {
1204 $data["pubkey"] = Crypto::rsaToPem($data["pubkey"]);
1208 $search = $xpath->query("//*[@id='pod_location']", $vcard); // */
1209 if ($search->length > 0) {
1210 $data["baseurl"] = trim($search->item(0)->nodeValue, "/");
1215 if (!empty($vcard)) {
1216 $photos = $xpath->query("//*[contains(concat(' ', @class, ' '), ' photo ') or contains(concat(' ', @class, ' '), ' avatar ')]", $vcard); // */
1217 foreach ($photos as $photo) {
1219 foreach ($photo->attributes as $attribute) {
1220 $attr[$attribute->name] = trim($attribute->value);
1223 if (isset($attr["src"]) && isset($attr["width"])) {
1224 $avatar[$attr["width"]] = $attr["src"];
1227 // We don't have a width. So we just take everything that we got.
1228 // This is a Hubzilla workaround which doesn't send a width.
1229 if ((sizeof($avatar) == 0) && !empty($attr["src"])) {
1230 $avatar[] = $attr["src"];
1235 if (sizeof($avatar)) {
1237 $data["photo"] = self::fixAvatar(array_pop($avatar), $data["baseurl"]);
1241 // Poll DFRN specific data
1242 $search = $xpath->query("//link[contains(concat(' ', @rel), ' dfrn-')]");
1243 if ($search->length > 0) {
1244 foreach ($search as $link) {
1245 //$data["request"] = $search->item(0)->nodeValue;
1247 foreach ($link->attributes as $attribute) {
1248 $attr[$attribute->name] = trim($attribute->value);
1251 $data[substr($attr["rel"], 5)] = $attr["href"];
1255 // Older Friendica versions had used the "uid" field differently than newer versions
1256 if (!empty($data["nick"]) && !empty($data["guid"]) && ($data["nick"] == $data["guid"])) {
1257 unset($data["guid"]);
1266 * @brief Check for Diaspora contact
1268 * @param array $webfinger Webfinger data
1269 * @param array $data previously probed data
1271 * @return array Diaspora data
1272 * @throws HTTPException\InternalServerErrorException
1274 private static function diaspora($webfinger, $data)
1278 unset($data["guid"]);
1279 unset($data["pubkey"]);
1281 // The array is reversed to take into account the order of preference for same-rel links
1282 // See: https://tools.ietf.org/html/rfc7033#section-4.4.4
1283 foreach (array_reverse($webfinger["links"]) as $link) {
1284 if (($link["rel"] == "http://microformats.org/profile/hcard") && !empty($link["href"])) {
1285 $hcard_url = $link["href"];
1286 } elseif (($link["rel"] == "http://joindiaspora.com/seed_location") && !empty($link["href"])) {
1287 $data["baseurl"] = trim($link["href"], '/');
1288 } elseif (($link["rel"] == "http://joindiaspora.com/guid") && !empty($link["href"])) {
1289 $data["guid"] = $link["href"];
1290 } elseif (($link["rel"] == "http://webfinger.net/rel/profile-page") && (($link["type"] ?? "") == "text/html") && !empty($link["href"])) {
1291 $data["url"] = $link["href"];
1292 } elseif (($link["rel"] == ActivityNamespace::FEED) && !empty($link["href"])) {
1293 $data["poll"] = $link["href"];
1294 } elseif (($link["rel"] == ActivityNamespace::POCO) && !empty($link["href"])) {
1295 $data["poco"] = $link["href"];
1296 } elseif (($link["rel"] == "salmon") && !empty($link["href"])) {
1297 $data["notify"] = $link["href"];
1298 } elseif (($link["rel"] == "diaspora-public-key") && !empty($link["href"])) {
1299 $data["pubkey"] = base64_decode($link["href"]);
1301 //if (strstr($data["pubkey"], 'RSA ') || ($link["type"] == "RSA"))
1302 if (strstr($data["pubkey"], 'RSA ')) {
1303 $data["pubkey"] = Crypto::rsaToPem($data["pubkey"]);
1308 if (empty($data["url"]) || empty($hcard_url)) {
1312 if (!empty($webfinger["aliases"]) && is_array($webfinger["aliases"])) {
1313 foreach ($webfinger["aliases"] as $alias) {
1314 if (Strings::normaliseLink($alias) != Strings::normaliseLink($data["url"]) && ! strstr($alias, "@")) {
1315 $data["alias"] = $alias;
1316 } elseif (substr($alias, 0, 5) == 'acct:') {
1317 $data["addr"] = substr($alias, 5);
1322 if (!empty($webfinger["subject"]) && (substr($webfinger["subject"], 0, 5) == 'acct:')) {
1323 $data["addr"] = substr($webfinger["subject"], 5);
1326 // Fetch further information from the hcard
1327 $data = self::pollHcard($hcard_url, $data);
1329 if (!empty($data["url"])
1330 && !empty($data["guid"])
1331 && !empty($data["baseurl"])
1332 && !empty($data["pubkey"])
1333 && !empty($hcard_url)
1335 $data["network"] = Protocol::DIASPORA;
1337 // The Diaspora handle must always be lowercase
1338 if (!empty($data["addr"])) {
1339 $data["addr"] = strtolower($data["addr"]);
1342 // We have to overwrite the detected value for "notify" since Hubzilla doesn't send it
1343 $data["notify"] = $data["baseurl"] . "/receive/users/" . $data["guid"];
1344 $data["batch"] = $data["baseurl"] . "/receive/public";
1351 * @brief Check for OStatus contact
1353 * @param array $webfinger Webfinger data
1354 * @param bool $short Short detection mode
1355 * @param array $data previously probed data
1357 * @return array|bool OStatus data or "false" on error or "true" on short mode
1358 * @throws HTTPException\InternalServerErrorException
1360 private static function ostatus($webfinger, $short = false, $data = [])
1362 if (!empty($webfinger["aliases"]) && is_array($webfinger["aliases"])) {
1363 foreach ($webfinger["aliases"] as $alias) {
1364 if (strstr($alias, "@") && !strstr(Strings::normaliseLink($alias), "http://")) {
1365 $data["addr"] = str_replace('acct:', '', $alias);
1370 if (!empty($webfinger["subject"]) && strstr($webfinger["subject"], "@")
1371 && !strstr(Strings::normaliseLink($webfinger["subject"]), "http://")
1373 $data["addr"] = str_replace('acct:', '', $webfinger["subject"]);
1376 if (is_array($webfinger["links"])) {
1377 // The array is reversed to take into account the order of preference for same-rel links
1378 // See: https://tools.ietf.org/html/rfc7033#section-4.4.4
1379 foreach (array_reverse($webfinger["links"]) as $link) {
1380 if (($link["rel"] == "http://webfinger.net/rel/profile-page")
1381 && (($link["type"] ?? "") == "text/html")
1382 && ($link["href"] != "")
1384 $data["url"] = $link["href"];
1385 } elseif (($link["rel"] == "salmon") && !empty($link["href"])) {
1386 $data["notify"] = $link["href"];
1387 } elseif (($link["rel"] == ActivityNamespace::FEED) && !empty($link["href"])) {
1388 $data["poll"] = $link["href"];
1389 } elseif (($link["rel"] == "magic-public-key") && !empty($link["href"])) {
1390 $pubkey = $link["href"];
1392 if (substr($pubkey, 0, 5) === 'data:') {
1393 if (strstr($pubkey, ',')) {
1394 $pubkey = substr($pubkey, strpos($pubkey, ',') + 1);
1396 $pubkey = substr($pubkey, 5);
1398 } elseif (Strings::normaliseLink($pubkey) == 'http://') {
1399 $curlResult = Network::curl($pubkey);
1400 if ($curlResult->isTimeout()) {
1401 self::$istimeout = true;
1408 $pubkey = $curlResult->getBody();
1411 $key = explode(".", $pubkey);
1413 if (sizeof($key) >= 3) {
1414 $m = Strings::base64UrlDecode($key[1]);
1415 $e = Strings::base64UrlDecode($key[2]);
1416 $data["pubkey"] = Crypto::meToPem($m, $e);
1422 if (isset($data["notify"]) && isset($data["pubkey"])
1423 && isset($data["poll"])
1424 && isset($data["url"])
1426 $data["network"] = Protocol::OSTATUS;
1437 // Fetch all additional data from the feed
1438 $curlResult = Network::curl($data["poll"]);
1439 if ($curlResult->isTimeout()) {
1440 self::$istimeout = true;
1443 $feed = $curlResult->getBody();
1447 $feed_data = Feed::import($feed, $dummy1, $dummy2, $dummy3, true);
1452 if (!empty($feed_data["header"]["author-name"])) {
1453 $data["name"] = $feed_data["header"]["author-name"];
1455 if (!empty($feed_data["header"]["author-nick"])) {
1456 $data["nick"] = $feed_data["header"]["author-nick"];
1458 if (!empty($feed_data["header"]["author-avatar"])) {
1459 $data["photo"] = self::fixAvatar($feed_data["header"]["author-avatar"], $data["url"]);
1461 if (!empty($feed_data["header"]["author-id"])) {
1462 $data["alias"] = $feed_data["header"]["author-id"];
1464 if (!empty($feed_data["header"]["author-location"])) {
1465 $data["location"] = $feed_data["header"]["author-location"];
1467 if (!empty($feed_data["header"]["author-about"])) {
1468 $data["about"] = $feed_data["header"]["author-about"];
1470 // OStatus has serious issues when the the url doesn't fit (ssl vs. non ssl)
1471 // So we take the value that we just fetched, although the other one worked as well
1472 if (!empty($feed_data["header"]["author-link"])) {
1473 $data["url"] = $feed_data["header"]["author-link"];
1476 if (($data['poll'] == $data['url']) && ($data["alias"] != '')) {
1477 $data['url'] = $data["alias"];
1478 $data["alias"] = '';
1481 /// @todo Fetch location and "about" from the feed as well
1486 * @brief Fetch data from a pump.io profile page
1488 * @param string $profile_link Link to the profile page
1490 * @return array profile data
1492 private static function pumpioProfileData($profile_link)
1494 $doc = new DOMDocument();
1495 if (!@$doc->loadHTMLFile($profile_link)) {
1499 $xpath = new DomXPath($doc);
1503 $data["name"] = $xpath->query("//span[contains(@class, 'p-name')]")->item(0)->nodeValue;
1505 if ($data["name"] == '') {
1506 // This is ugly - but pump.io doesn't seem to know a better way for it
1507 $data["name"] = trim($xpath->query("//h1[@class='media-header']")->item(0)->nodeValue);
1508 $pos = strpos($data["name"], chr(10));
1510 $data["name"] = trim(substr($data["name"], 0, $pos));
1514 $data["location"] = XML::getFirstNodeValue($xpath, "//p[contains(@class, 'p-locality')]");
1516 if ($data["location"] == '') {
1517 $data["location"] = XML::getFirstNodeValue($xpath, "//p[contains(@class, 'location')]");
1520 $data["about"] = XML::getFirstNodeValue($xpath, "//p[contains(@class, 'p-note')]");
1522 if ($data["about"] == '') {
1523 $data["about"] = XML::getFirstNodeValue($xpath, "//p[contains(@class, 'summary')]");
1526 $avatar = $xpath->query("//img[contains(@class, 'u-photo')]")->item(0);
1528 $avatar = $xpath->query("//img[@class='img-rounded media-object']")->item(0);
1531 foreach ($avatar->attributes as $attribute) {
1532 if ($attribute->name == "src") {
1533 $data["photo"] = trim($attribute->value);
1542 * @brief Check for pump.io contact
1544 * @param array $webfinger Webfinger data
1545 * @param string $addr
1546 * @param array $data previously probed data
1547 * @return array pump.io data
1549 private static function pumpio($webfinger, $addr, $data)
1551 // The array is reversed to take into account the order of preference for same-rel links
1552 // See: https://tools.ietf.org/html/rfc7033#section-4.4.4
1553 foreach (array_reverse($webfinger["links"]) as $link) {
1554 if (($link["rel"] == "http://webfinger.net/rel/profile-page")
1555 && (($link["type"] ?? "") == "text/html")
1556 && ($link["href"] != "")
1558 $data["url"] = $link["href"];
1559 } elseif (($link["rel"] == "activity-inbox") && ($link["href"] != "")) {
1560 $data["notify"] = $link["href"];
1561 } elseif (($link["rel"] == "activity-outbox") && ($link["href"] != "")) {
1562 $data["poll"] = $link["href"];
1563 } elseif (($link["rel"] == "dialback") && ($link["href"] != "")) {
1564 $data["dialback"] = $link["href"];
1567 if (isset($data["poll"]) && isset($data["notify"])
1568 && isset($data["dialback"])
1569 && isset($data["url"])
1571 // by now we use these fields only for the network type detection
1572 // So we unset all data that isn't used at the moment
1573 unset($data["dialback"]);
1575 $data["network"] = Protocol::PUMPIO;
1580 $profile_data = self::pumpioProfileData($data["url"]);
1582 if (!$profile_data) {
1586 $data = array_merge($data, $profile_data);
1588 if (($addr != '') && ($data['name'] != '')) {
1589 $name = trim(str_replace($addr, '', $data['name']));
1591 $data['name'] = $name;
1599 * @brief Check for twitter contact
1601 * @param string $uri
1603 * @return array twitter data
1605 private static function twitter($uri)
1607 if (preg_match('=(.*)@twitter.com=i', $uri, $matches)) {
1608 $nick = $matches[1];
1609 } elseif (preg_match('=https?://twitter.com/(.*)=i', $uri, $matches)) {
1610 $nick = $matches[1];
1616 $data['url'] = 'https://twitter.com/' . $nick;
1617 $data['addr'] = $nick . '@twitter.com';
1618 $data['nick'] = $data['name'] = $nick;
1619 $data['network'] = Protocol::TWITTER;
1620 $data['baseurl'] = 'https://twitter.com';
1622 $curlResult = Network::curl($data['url'], false);
1623 if (!$curlResult->isSuccess()) {
1627 $body = $curlResult->getBody();
1628 $doc = new DOMDocument();
1629 @$doc->loadHTML($body);
1630 $xpath = new DOMXPath($doc);
1632 $list = $xpath->query('//img[@class]');
1633 foreach ($list as $node) {
1635 if ($node->attributes->length) {
1636 foreach ($node->attributes as $attribute) {
1637 $img_attr[$attribute->name] = $attribute->value;
1641 if (empty($img_attr['class'])) {
1645 if (strpos($img_attr['class'], 'ProfileAvatar-image') !== false) {
1646 if (!empty($img_attr['src'])) {
1647 $data['photo'] = $img_attr['src'];
1649 if (!empty($img_attr['alt'])) {
1650 $data['name'] = $img_attr['alt'];
1659 * @brief Check page for feed link
1661 * @param string $url Page link
1663 * @return string feed link
1665 private static function getFeedLink($url)
1667 $doc = new DOMDocument();
1669 if (!@$doc->loadHTMLFile($url)) {
1673 $xpath = new DomXPath($doc);
1675 //$feeds = $xpath->query("/html/head/link[@type='application/rss+xml']");
1676 $feeds = $xpath->query("/html/head/link[@type='application/rss+xml' and @rel='alternate']");
1677 if (!is_object($feeds)) {
1681 if ($feeds->length == 0) {
1687 foreach ($feeds as $feed) {
1689 foreach ($feed->attributes as $attribute) {
1690 $attr[$attribute->name] = trim($attribute->value);
1693 if (empty($feed_url) && !empty($attr['href'])) {
1694 $feed_url = $attr["href"];
1702 * @brief Check for feed contact
1704 * @param string $url Profile link
1705 * @param boolean $probe Do a probe if the page contains a feed link
1706 * @param array $data previously probed data
1708 * @return array feed data
1709 * @throws HTTPException\InternalServerErrorException
1711 private static function feed($url, $probe = true, $data = [])
1713 $curlResult = Network::curl($url);
1714 if ($curlResult->isTimeout()) {
1715 self::$istimeout = true;
1718 $feed = $curlResult->getBody();
1719 $dummy1 = $dummy2 = $dummy3 = null;
1720 $feed_data = Feed::import($feed, $dummy1, $dummy2, $dummy3, true);
1727 $feed_url = self::getFeedLink($url);
1733 return self::feed($feed_url, false);
1736 if (!empty($feed_data["header"]["author-name"])) {
1737 $data["name"] = $feed_data["header"]["author-name"];
1740 if (!empty($feed_data["header"]["author-nick"])) {
1741 $data["nick"] = $feed_data["header"]["author-nick"];
1744 if (!empty($feed_data["header"]["author-avatar"])) {
1745 $data["photo"] = $feed_data["header"]["author-avatar"];
1748 if (!empty($feed_data["header"]["author-id"])) {
1749 $data["alias"] = $feed_data["header"]["author-id"];
1752 $data["url"] = $url;
1753 $data["poll"] = $url;
1755 if (!empty($feed_data["header"]["author-link"])) {
1756 $data["baseurl"] = $feed_data["header"]["author-link"];
1758 $data["baseurl"] = $data["url"];
1761 $data["network"] = Protocol::FEED;
1767 * @brief Check for mail contact
1769 * @param string $uri Profile link
1770 * @param integer $uid User ID
1772 * @return array mail data
1773 * @throws \Exception
1775 private static function mail($uri, $uid)
1777 if (!Network::isEmailDomainValid($uri)) {
1785 $user = DBA::selectFirst('user', ['prvkey'], ['uid' => $uid]);
1787 $condition = ["`uid` = ? AND `server` != ''", $uid];
1788 $fields = ['pass', 'user', 'server', 'port', 'ssltype', 'mailbox'];
1789 $mailacct = DBA::selectFirst('mailacct', $fields, $condition);
1791 if (!DBA::isResult($user) || !DBA::isResult($mailacct)) {
1795 $mailbox = Email::constructMailboxName($mailacct);
1797 openssl_private_decrypt(hex2bin($mailacct['pass']), $password, $user['prvkey']);
1798 $mbox = Email::connect($mailbox, $mailacct['user'], $password);
1803 $msgs = Email::poll($mbox, $uri);
1804 Logger::log('searching '.$uri.', '.count($msgs).' messages found.', Logger::DEBUG);
1806 if (!count($msgs)) {
1810 $phost = substr($uri, strpos($uri, '@') + 1);
1813 $data["addr"] = $uri;
1814 $data["network"] = Protocol::MAIL;
1815 $data["name"] = substr($uri, 0, strpos($uri, '@'));
1816 $data["nick"] = $data["name"];
1817 $data["photo"] = Network::lookupAvatarByEmail($uri);
1818 $data["url"] = 'mailto:'.$uri;
1819 $data["notify"] = 'smtp ' . Strings::getRandomHex();
1820 $data["poll"] = 'email ' . Strings::getRandomHex();
1822 $x = Email::messageMeta($mbox, $msgs[0]);
1823 if (stristr($x[0]->from, $uri)) {
1824 $adr = imap_rfc822_parse_adrlist($x[0]->from, '');
1825 } elseif (stristr($x[0]->to, $uri)) {
1826 $adr = imap_rfc822_parse_adrlist($x[0]->to, '');
1829 foreach ($adr as $feadr) {
1830 if ((strcasecmp($feadr->mailbox, $data["name"]) == 0)
1831 &&(strcasecmp($feadr->host, $phost) == 0)
1832 && (strlen($feadr->personal))
1834 $personal = imap_mime_header_decode($feadr->personal);
1836 foreach ($personal as $perspart) {
1837 if ($perspart->charset != "default") {
1838 $data["name"] .= iconv($perspart->charset, 'UTF-8//IGNORE', $perspart->text);
1840 $data["name"] .= $perspart->text;
1844 $data["name"] = Strings::escapeTags($data["name"]);
1848 if (!empty($mbox)) {
1855 * @brief Mix two paths together to possibly fix missing parts
1857 * @param string $avatar Path to the avatar
1858 * @param string $base Another path that is hopefully complete
1860 * @return string fixed avatar path
1861 * @throws \Exception
1863 public static function fixAvatar($avatar, $base)
1865 $base_parts = parse_url($base);
1867 // Remove all parts that could create a problem
1868 unset($base_parts['path']);
1869 unset($base_parts['query']);
1870 unset($base_parts['fragment']);
1872 $avatar_parts = parse_url($avatar);
1875 $parts = array_merge($base_parts, $avatar_parts);
1877 // And put them together again
1878 $scheme = isset($parts['scheme']) ? $parts['scheme'] . '://' : '';
1879 $host = isset($parts['host']) ? $parts['host'] : '';
1880 $port = isset($parts['port']) ? ':' . $parts['port'] : '';
1881 $path = isset($parts['path']) ? $parts['path'] : '';
1882 $query = isset($parts['query']) ? '?' . $parts['query'] : '';
1883 $fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : '';
1885 $fixed = $scheme.$host.$port.$path.$query.$fragment;
1887 Logger::log('Base: '.$base.' - Avatar: '.$avatar.' - Fixed: '.$fixed, Logger::DATA);