4 * @file src/Model/GServer.php
5 * @brief This file includes the GServer class to handle with servers
7 namespace Friendica\Model;
11 use Friendica\Core\Config;
12 use Friendica\Core\Protocol;
13 use Friendica\Database\DBA;
14 use Friendica\Module\Register;
15 use Friendica\Util\Network;
16 use Friendica\Util\DateTimeFormat;
17 use Friendica\Util\Strings;
18 use Friendica\Util\XML;
19 use Friendica\Core\Logger;
20 use Friendica\Protocol\PortableContact;
21 use Friendica\Protocol\Diaspora;
22 use Friendica\Network\Probe;
25 * @brief This class handles GServer related functions
29 public static function check($server_url, $network = '', $force = false)
31 // Unify the server address
32 $server_url = trim($server_url, '/');
33 $server_url = str_replace('/index.php', '', $server_url);
35 if ($server_url == '') {
39 $gserver = DBA::selectFirst('gserver', [], ['nurl' => Strings::normaliseLink($server_url)]);
40 if (DBA::isResult($gserver)) {
41 if ($gserver['created'] <= DBA::NULL_DATETIME) {
42 $fields = ['created' => DateTimeFormat::utcNow()];
43 $condition = ['nurl' => Strings::normaliseLink($server_url)];
44 DBA::update('gserver', $fields, $condition);
47 $last_contact = $gserver["last_contact"];
48 $last_failure = $gserver["last_failure"];
50 // See discussion under https://forum.friendi.ca/display/0b6b25a8135aabc37a5a0f5684081633
51 // It can happen that a zero date is in the database, but storing it again is forbidden.
52 if ($last_contact < DBA::NULL_DATETIME) {
53 $last_contact = DBA::NULL_DATETIME;
56 if ($last_failure < DBA::NULL_DATETIME) {
57 $last_failure = DBA::NULL_DATETIME;
60 if (!$force && !PortableContact::updateNeeded($gserver['created'], '', $last_failure, $last_contact)) {
61 Logger::info('No update needed', ['server' => $server_url]);
62 return ($last_contact >= $last_failure);
64 Logger::info('Server is outdated. Start discovery.', ['Server' => $server_url, 'Force' => $force, 'Created' => $gserver['created'], 'Failure' => $last_failure, 'Contact' => $last_contact]);
66 Logger::info('Server is unknown. Start discovery.', ['Server' => $server_url]);
69 return self::detect($server_url, $network);
73 * Detect server data (type, protocol, version number, ...)
74 * The detected data is then updated or inserted in the gserver table.
76 * @param string $url Server url
78 * @return boolean 'true' if server could be detected
80 public static function detect($url, $network = '')
84 // When a nodeinfo is present, we don't need to dig further
85 $xrd_timeout = Config::get('system', 'xrd_timeout');
86 $curlResult = Network::curl($url . '/.well-known/nodeinfo', false, ['timeout' => $xrd_timeout]);
87 if ($curlResult->isTimeout()) {
88 DBA::update('gserver', ['last_failure' => DateTimeFormat::utcNow()], ['nurl' => Strings::normaliseLink($url)]);
92 $nodeinfo = self::fetchNodeinfo($url, $curlResult);
94 // When nodeinfo isn't present, we use the older 'statistics.json' endpoint
95 if (empty($nodeinfo)) {
96 $nodeinfo = self::fetchStatistics($url);
99 // If that didn't work out well, we use some protocol specific endpoints
100 if (empty($nodeinfo) || empty($nodeinfo['network']) || ($nodeinfo['network'] == Protocol::DFRN)) {
101 // Fetch the landing page, possibly it reveals some data
102 $curlResult = Network::curl($url, false, ['timeout' => $xrd_timeout]);
103 if ($curlResult->isSuccess()) {
104 $serverdata = self::analyseRootHeader($curlResult, $serverdata);
105 $serverdata = self::analyseRootBody($curlResult, $serverdata);
108 if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
109 DBA::update('gserver', ['last_failure' => DateTimeFormat::utcNow()], ['nurl' => Strings::normaliseLink($url)]);
113 if (empty($serverdata['network']) || ($serverdata['network'] == Protocol::DFRN)) {
114 $serverdata = self::detectFriendica($url, $serverdata);
117 if (empty($serverdata['network']) || ($serverdata['network'] == Protocol::ACTIVITYPUB)) {
118 $serverdata = self::detectMastodonAlikes($url, $serverdata);
121 // the 'siteinfo.json' is some specific endpoint of Hubzilla and Red
122 if (empty($serverdata['network']) || ($serverdata['network'] == Protocol::ZOT)) {
123 $serverdata = self::fetchSiteinfo($url, $serverdata);
126 // The 'siteinfo.json' doesn't seem to be present on older Hubzilla installations
127 if (empty($serverdata['network'])) {
128 $serverdata = self::detectHubzilla($url, $serverdata);
131 if (empty($serverdata['network'])) {
132 $serverdata = self::detectNextcloud($url, $serverdata);
135 if (empty($serverdata['network'])) {
136 $serverdata = self::detectGNUSocial($url, $serverdata);
139 $serverdata = $nodeinfo;
142 $serverdata = self::checkPoCo($url, $serverdata);
144 // We can't detect the network type. Possibly it is some system that we don't know yet
145 if (empty($serverdata['network'])) {
146 $serverdata['network'] = Protocol::PHANTOM;
149 // When we hadn't been able to detect the network type, we use the hint from the parameter
150 if (($serverdata['network'] == Protocol::PHANTOM) && !empty($network)) {
151 $serverdata['network'] = $network;
154 // Check host-meta for phantom networks.
155 // Although this is not needed, it is a good indicator for a living system,
156 // since most systems had implemented it.
157 if (($serverdata['network'] == Protocol::PHANTOM) && !self::validHostMeta($url)) {
158 DBA::update('gserver', ['last_failure' => DateTimeFormat::utcNow()], ['nurl' => Strings::normaliseLink($url)]);
162 $serverdata['url'] = $url;
163 $serverdata['nurl'] = Strings::normaliseLink($url);
165 // We take the highest number that we do find
166 $registeredUsers = $serverdata['registered-users'] ?? 0;
168 // On an active server there has to be at least a single user
169 if (($serverdata['network'] != Protocol::PHANTOM) && ($registeredUsers == 0)) {
170 $registeredUsers = 1;
173 if ($serverdata['network'] != Protocol::PHANTOM) {
174 $gcontacts = DBA::count('gcontact', ['server_url' => [$url, $serverdata['nurl']]]);
175 $apcontacts = DBA::count('apcontact', ['baseurl' => [$url, $serverdata['nurl']]]);
176 $contacts = DBA::count('contact', ['uid' => 0, 'baseurl' => [$url, $serverdata['nurl']]]);
177 $serverdata['registered-users'] = max($gcontacts, $apcontacts, $contacts, $registeredUsers);
179 $serverdata['registered-users'] = $registeredUsers;
180 $serverdata = self::detectNetworkViaContacts($url, $serverdata);
183 $serverdata['last_contact'] = DateTimeFormat::utcNow();
185 $gserver = DBA::selectFirst('gserver', ['network'], ['nurl' => Strings::normaliseLink($url)]);
186 if (!DBA::isResult($gserver)) {
187 $serverdata['created'] = DateTimeFormat::utcNow();
188 $ret = DBA::insert('gserver', $serverdata);
190 // Don't override the network with "unknown" when there had been a valid entry before
191 if (($serverdata['network'] == Protocol::PHANTOM) && !empty($gserver['network'])) {
192 unset($serverdata['network']);
195 $ret = DBA::update('gserver', $serverdata, ['nurl' => $serverdata['nurl']]);
198 if (!empty($serverdata['network']) && in_array($serverdata['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
199 self::discoverRelay($url);
206 * @brief Fetch relay data from a given server url
208 * @param string $server_url address of the server
209 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
211 private static function discoverRelay($server_url)
213 Logger::info('Discover relay data', ['server' => $server_url]);
215 $curlResult = Network::curl($server_url . '/.well-known/x-social-relay');
216 if (!$curlResult->isSuccess()) {
220 $data = json_decode($curlResult->getBody(), true);
221 if (!is_array($data)) {
225 $gserver = DBA::selectFirst('gserver', ['id', 'relay-subscribe', 'relay-scope'], ['nurl' => Strings::normaliseLink($server_url)]);
226 if (!DBA::isResult($gserver)) {
230 if (($gserver['relay-subscribe'] != $data['subscribe']) || ($gserver['relay-scope'] != $data['scope'])) {
231 $fields = ['relay-subscribe' => $data['subscribe'], 'relay-scope' => $data['scope']];
232 DBA::update('gserver', $fields, ['id' => $gserver['id']]);
235 DBA::delete('gserver-tag', ['gserver-id' => $gserver['id']]);
237 if ($data['scope'] == 'tags') {
240 foreach ($data['tags'] as $tag) {
241 $tag = mb_strtolower($tag);
242 if (strlen($tag) < 100) {
247 foreach ($tags as $tag) {
248 DBA::insert('gserver-tag', ['gserver-id' => $gserver['id'], 'tag' => $tag], true);
252 // Create or update the relay contact
254 if (isset($data['protocols'])) {
255 if (isset($data['protocols']['diaspora'])) {
256 $fields['network'] = Protocol::DIASPORA;
258 if (isset($data['protocols']['diaspora']['receive'])) {
259 $fields['batch'] = $data['protocols']['diaspora']['receive'];
260 } elseif (is_string($data['protocols']['diaspora'])) {
261 $fields['batch'] = $data['protocols']['diaspora'];
265 if (isset($data['protocols']['dfrn'])) {
266 $fields['network'] = Protocol::DFRN;
268 if (isset($data['protocols']['dfrn']['receive'])) {
269 $fields['batch'] = $data['protocols']['dfrn']['receive'];
270 } elseif (is_string($data['protocols']['dfrn'])) {
271 $fields['batch'] = $data['protocols']['dfrn'];
275 Diaspora::setRelayContact($server_url, $fields);
278 private static function fetchStatistics($url)
280 $curlResult = Network::curl($url . '/statistics.json');
281 if (!$curlResult->isSuccess()) {
285 $data = json_decode($curlResult->getBody(), true);
292 if (!empty($data['version'])) {
293 $serverdata['version'] = $data['version'];
294 // Version numbers on statistics.json are presented with additional info, e.g.:
295 // 0.6.3.0-p1702cc1c, 0.6.99.0-p1b9ab160 or 3.4.3-2-1191.
296 $serverdata['version'] = preg_replace('=(.+)-(.{4,})=ism', '$1', $serverdata['version']);
299 if (!empty($data['name'])) {
300 $serverdata['site_name'] = $data['name'];
303 if (!empty($data['network'])) {
304 $serverdata['platform'] = $data['network'];
306 if ($serverdata['platform'] == 'Diaspora') {
307 $serverdata['network'] = Protocol::DIASPORA;
308 } elseif ($serverdata['platform'] == 'Friendica') {
309 $serverdata['network'] = Protocol::DFRN;
310 } elseif ($serverdata['platform'] == 'hubzilla') {
311 $serverdata['network'] = Protocol::ZOT;
312 } elseif ($serverdata['platform'] == 'redmatrix') {
313 $serverdata['network'] = Protocol::ZOT;
318 if (!empty($data['registrations_open'])) {
319 $serverdata['register_policy'] = Register::OPEN;
321 $serverdata['register_policy'] = Register::CLOSED;
328 * @brief Detect server type by using the nodeinfo data
330 * @param string $url address of the server
331 * @return array Server data
332 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
334 private static function fetchNodeinfo($url, $curlResult)
336 $nodeinfo = json_decode($curlResult->getBody(), true);
338 if (!is_array($nodeinfo) || empty($nodeinfo['links'])) {
345 foreach ($nodeinfo['links'] as $link) {
346 if (!is_array($link) || empty($link['rel']) || empty($link['href'])) {
347 Logger::info('Invalid nodeinfo format', ['url' => $url]);
350 if ($link['rel'] == 'http://nodeinfo.diaspora.software/ns/schema/1.0') {
351 $nodeinfo1_url = $link['href'];
352 } elseif ($link['rel'] == 'http://nodeinfo.diaspora.software/ns/schema/2.0') {
353 $nodeinfo2_url = $link['href'];
357 if ($nodeinfo1_url . $nodeinfo2_url == '') {
363 // When the nodeinfo url isn't on the same host, then there is obviously something wrong
364 if (!empty($nodeinfo2_url) && (parse_url($url, PHP_URL_HOST) == parse_url($nodeinfo2_url, PHP_URL_HOST))) {
365 $server = self::parseNodeinfo2($nodeinfo2_url);
368 // When the nodeinfo url isn't on the same host, then there is obviously something wrong
369 if (empty($server) && !empty($nodeinfo1_url) && (parse_url($url, PHP_URL_HOST) == parse_url($nodeinfo1_url, PHP_URL_HOST))) {
370 $server = self::parseNodeinfo1($nodeinfo1_url);
377 * @brief Parses Nodeinfo 1
379 * @param string $nodeinfo_url address of the nodeinfo path
380 * @return array Server data
381 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
383 private static function parseNodeinfo1($nodeinfo_url)
385 $curlResult = Network::curl($nodeinfo_url);
387 if (!$curlResult->isSuccess()) {
391 $nodeinfo = json_decode($curlResult->getBody(), true);
393 if (!is_array($nodeinfo)) {
399 $server['register_policy'] = Register::CLOSED;
401 if (!empty($nodeinfo['openRegistrations'])) {
402 $server['register_policy'] = Register::OPEN;
405 if (is_array($nodeinfo['software'])) {
406 if (!empty($nodeinfo['software']['name'])) {
407 $server['platform'] = $nodeinfo['software']['name'];
410 if (!empty($nodeinfo['software']['version'])) {
411 $server['version'] = $nodeinfo['software']['version'];
412 // Version numbers on Nodeinfo are presented with additional info, e.g.:
413 // 0.6.3.0-p1702cc1c, 0.6.99.0-p1b9ab160 or 3.4.3-2-1191.
414 $server['version'] = preg_replace('=(.+)-(.{4,})=ism', '$1', $server['version']);
418 if (!empty($nodeinfo['metadata']['nodeName'])) {
419 $server['site_name'] = $nodeinfo['metadata']['nodeName'];
422 if (!empty($nodeinfo['usage']['users']['total'])) {
423 $server['registered-users'] = $nodeinfo['usage']['users']['total'];
426 if (!empty($nodeinfo['protocols']['inbound']) && is_array($nodeinfo['protocols']['inbound'])) {
428 foreach ($nodeinfo['protocols']['inbound'] as $protocol) {
429 $protocols[$protocol] = true;
432 if (!empty($protocols['friendica'])) {
433 $server['network'] = Protocol::DFRN;
434 } elseif (!empty($protocols['activitypub'])) {
435 $server['network'] = Protocol::ACTIVITYPUB;
436 } elseif (!empty($protocols['diaspora'])) {
437 $server['network'] = Protocol::DIASPORA;
438 } elseif (!empty($protocols['ostatus'])) {
439 $server['network'] = Protocol::OSTATUS;
440 } elseif (!empty($protocols['gnusocial'])) {
441 $server['network'] = Protocol::OSTATUS;
442 } elseif (!empty($protocols['zot'])) {
443 $server['network'] = Protocol::ZOT;
455 * @brief Parses Nodeinfo 2
457 * @param string $nodeinfo_url address of the nodeinfo path
458 * @return array Server data
459 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
461 private static function parseNodeinfo2($nodeinfo_url)
463 $curlResult = Network::curl($nodeinfo_url);
464 if (!$curlResult->isSuccess()) {
468 $nodeinfo = json_decode($curlResult->getBody(), true);
470 if (!is_array($nodeinfo)) {
476 $server['register_policy'] = Register::CLOSED;
478 if (!empty($nodeinfo['openRegistrations'])) {
479 $server['register_policy'] = Register::OPEN;
482 if (is_array($nodeinfo['software'])) {
483 if (!empty($nodeinfo['software']['name'])) {
484 $server['platform'] = $nodeinfo['software']['name'];
487 if (!empty($nodeinfo['software']['version'])) {
488 $server['version'] = $nodeinfo['software']['version'];
489 // Version numbers on Nodeinfo are presented with additional info, e.g.:
490 // 0.6.3.0-p1702cc1c, 0.6.99.0-p1b9ab160 or 3.4.3-2-1191.
491 $server['version'] = preg_replace('=(.+)-(.{4,})=ism', '$1', $server['version']);
495 if (!empty($nodeinfo['metadata']['nodeName'])) {
496 $server['site_name'] = $nodeinfo['metadata']['nodeName'];
499 if (!empty($nodeinfo['usage']['users']['total'])) {
500 $server['registered-users'] = $nodeinfo['usage']['users']['total'];
503 if (!empty($nodeinfo['protocols'])) {
505 foreach ($nodeinfo['protocols'] as $protocol) {
506 $protocols[$protocol] = true;
509 if (!empty($protocols['friendica'])) {
510 $server['network'] = Protocol::DFRN;
511 } elseif (!empty($protocols['activitypub'])) {
512 $server['network'] = Protocol::ACTIVITYPUB;
513 } elseif (!empty($protocols['diaspora'])) {
514 $server['network'] = Protocol::DIASPORA;
515 } elseif (!empty($protocols['ostatus'])) {
516 $server['network'] = Protocol::OSTATUS;
517 } elseif (!empty($protocols['gnusocial'])) {
518 $server['network'] = Protocol::OSTATUS;
519 } elseif (!empty($protocols['zot'])) {
520 $server['network'] = Protocol::ZOT;
524 if (empty($server)) {
531 private static function fetchSiteinfo($url, $serverdata)
533 $curlResult = Network::curl($url . '/siteinfo.json');
534 if (!$curlResult->isSuccess()) {
538 $data = json_decode($curlResult->getBody(), true);
543 if (!empty($data['url'])) {
544 $serverdata['platform'] = $data['platform'];
545 $serverdata['version'] = $data['version'];
548 if (!empty($data['plugins'])) {
549 if (in_array('pubcrawl', $data['plugins'])) {
550 $serverdata['network'] = Protocol::ACTIVITYPUB;
551 } elseif (in_array('diaspora', $data['plugins'])) {
552 $serverdata['network'] = Protocol::DIASPORA;
553 } elseif (in_array('gnusoc', $data['plugins'])) {
554 $serverdata['network'] = Protocol::OSTATUS;
556 $serverdata['network'] = Protocol::ZOT;
560 if (!empty($data['site_name'])) {
561 $serverdata['site_name'] = $data['site_name'];
564 if (!empty($data['channels_total'])) {
565 $serverdata['registered-users'] = $data['channels_total'];
568 if (!empty($data['register_policy'])) {
569 switch ($data['register_policy']) {
570 case 'REGISTER_OPEN':
571 $serverdata['register_policy'] = Register::OPEN;
574 case 'REGISTER_APPROVE':
575 $serverdata['register_policy'] = Register::APPROVE;
578 case 'REGISTER_CLOSED':
580 $serverdata['register_policy'] = Register::CLOSED;
588 private static function validHostMeta($url)
590 $xrd_timeout = Config::get('system', 'xrd_timeout');
591 $curlResult = Network::curl($url . '/.well-known/host-meta', false, ['timeout' => $xrd_timeout]);
592 if (!$curlResult->isSuccess()) {
596 $xrd = XML::parseString($curlResult->getBody(), false);
597 if (!is_object($xrd)) {
601 $elements = XML::elementToArray($xrd);
602 if (empty($elements) || empty($elements['xrd']) || empty($elements['xrd']['link'])) {
607 foreach ($elements['xrd']['link'] as $link) {
608 if (empty($link['rel']) || empty($link['type']) || empty($link['template'])) {
612 if ($link['type'] == 'application/xrd+xml') {
613 // When the webfinger host is the same like the system host, it should be ok.
614 $valid = (parse_url($url, PHP_URL_HOST) == parse_url($link['template'], PHP_URL_HOST));
621 private static function detectNetworkViaContacts($url, $serverdata)
624 $fields = ['nurl', 'url'];
626 $gcontacts = DBA::select('gcontact', $fields, ['server_url' => [$url, $serverdata['nurl']]]);
627 while ($gcontact = DBA::fetch($gcontacts)) {
628 $contacts[$gcontact['nurl']] = $gcontact['url'];
630 DBA::close($gcontacts);
632 $apcontacts = DBA::select('apcontact', $fields, ['baseurl' => [$url, $serverdata['nurl']]]);
633 while ($gcontact = DBA::fetch($gcontacts)) {
634 $contacts[$apcontact['nurl']] = $apcontact['url'];
636 DBA::close($apcontacts);
638 $pcontacts = DBA::select('contact', $fields, ['uid' => 0, 'baseurl' => [$url, $serverdata['nurl']]]);
639 while ($gcontact = DBA::fetch($gcontacts)) {
640 $contacts[$pcontact['nurl']] = $pcontact['url'];
642 DBA::close($pcontacts);
644 if (empty($contacts)) {
648 foreach ($contacts as $contact) {
649 $probed = Probe::uri($contact);
650 if (in_array($probed['network'], Protocol::FEDERATED)) {
651 $serverdata['network'] = $probed['network'];
656 $serverdata['registered-users'] = max($serverdata['registered-users'], count($contacts));
661 private static function checkPoCo($url, $serverdata)
663 $curlResult = Network::curl($url. '/poco');
664 if (!$curlResult->isSuccess()) {
668 $data = json_decode($curlResult->getBody(), true);
673 if (!empty($data['totalResults'])) {
674 $registeredUsers = $serverdata['registered-users'] ?? 0;
675 $serverdata['registered-users'] = max($data['totalResults'], $registeredUsers);
676 $serverdata['poco'] = $url . '/poco';
678 $serverdata['poco'] = '';
684 private static function detectNextcloud($url, $serverdata)
686 $curlResult = Network::curl($url . '/status.php');
688 if (!$curlResult->isSuccess() || ($curlResult->getBody() == '')) {
692 $data = json_decode($curlResult->getBody(), true);
697 if (!empty($data['version'])) {
698 $serverdata['platform'] = 'nextcloud';
699 $serverdata['version'] = $data['version'];
700 $serverdata['network'] = Protocol::ACTIVITYPUB;
706 private static function detectMastodonAlikes($url, $serverdata)
708 $curlResult = Network::curl($url . '/api/v1/instance');
710 if (!$curlResult->isSuccess() || ($curlResult->getBody() == '')) {
714 $data = json_decode($curlResult->getBody(), true);
719 if (!empty($data['version'])) {
720 $serverdata['platform'] = 'mastodon';
721 $serverdata['version'] = defaults($data, 'version', '');
722 $serverdata['network'] = Protocol::ACTIVITYPUB;
725 if (!empty($data['title'])) {
726 $serverdata['site_name'] = $data['title'];
729 if (!empty($data['description'])) {
730 $serverdata['info'] = trim($data['description']);
733 if (!empty($data['stats']['user_count'])) {
734 $serverdata['registered-users'] = $data['stats']['user_count'];
737 if (!empty($serverdata['version']) && preg_match('/.*?\(compatible;\s(.*)\s(.*)\)/ism', $serverdata['version'], $matches)) {
738 $serverdata['platform'] = $matches[1];
739 $serverdata['version'] = $matches[2];
742 if (!empty($serverdata['version']) && strstr($serverdata['version'], 'Pleroma')) {
743 $serverdata['platform'] = 'pleroma';
744 $serverdata['version'] = trim(str_replace('Pleroma', '', $serverdata['version']));
750 private static function detectHubzilla($url, $serverdata)
752 $curlResult = Network::curl($url . '/api/statusnet/config.json');
753 if (!$curlResult->isSuccess() || ($curlResult->getBody() == '')) {
757 $data = json_decode($curlResult->getBody(), true);
762 if (!empty($data['site']['name'])) {
763 $serverdata['site_name'] = $data['site']['name'];
766 if (!empty($data['site']['platform'])) {
767 $serverdata['platform'] = $data['site']['platform']['PLATFORM_NAME'];
768 $serverdata['version'] = $data['site']['platform']['STD_VERSION'];
769 $serverdata['network'] = Protocol::ZOT;
772 if (!empty($data['site']['hubzilla'])) {
773 $serverdata['platform'] = $data['site']['hubzilla']['PLATFORM_NAME'];
774 $serverdata['version'] = $data['site']['hubzilla']['RED_VERSION'];
775 $serverdata['network'] = Protocol::ZOT;
778 if (!empty($data['site']['redmatrix'])) {
779 if (!empty($data['site']['redmatrix']['PLATFORM_NAME'])) {
780 $serverdata['platform'] = $data['site']['redmatrix']['PLATFORM_NAME'];
781 } elseif (!empty($data['site']['redmatrix']['RED_PLATFORM'])) {
782 $serverdata['platform'] = $data['site']['redmatrix']['RED_PLATFORM'];
785 $serverdata['version'] = $data['site']['redmatrix']['RED_VERSION'];
786 $serverdata['network'] = Protocol::ZOT;
793 if (!empty($data['site']['closed'])) {
794 $closed = self::toBoolean($data['site']['closed']);
797 if (!empty($data['site']['private'])) {
798 $private = self::toBoolean($data['site']['private']);
801 if (!empty($data['site']['inviteonly'])) {
802 $inviteonly = self::toBoolean($data['site']['inviteonly']);
805 if (!$closed && !$private and $inviteonly) {
806 $register_policy = Register::APPROVE;
807 } elseif (!$closed && !$private) {
808 $register_policy = Register::OPEN;
810 $register_policy = Register::CLOSED;
816 private static function toBoolean($val)
818 if (($val == 'true') || ($val == 1)) {
820 } elseif (($val == 'false') || ($val == 0)) {
827 private static function detectGNUSocial($url, $serverdata)
829 $curlResult = Network::curl($url . '/api/statusnet/version.json');
831 if ($curlResult->isSuccess() && ($curlResult->getBody() != '{"error":"not implemented"}') &&
832 ($curlResult->getBody() != '') && (strlen($curlResult->getBody()) < 30)) {
833 $serverdata['platform'] = 'StatusNet';
834 // Remove junk that some GNU Social servers return
835 $serverdata['version'] = str_replace(chr(239).chr(187).chr(191), '', $curlResult->getBody());
836 $serverdata['version'] = trim($serverdata['version'], '"');
837 $serverdata['network'] = Protocol::OSTATUS;
840 // Test for GNU Social
841 $curlResult = Network::curl($url . '/api/gnusocial/version.json');
843 if ($curlResult->isSuccess() && ($curlResult->getBody() != '{"error":"not implemented"}') &&
844 ($curlResult->getBody() != '') && (strlen($curlResult->getBody()) < 30)) {
845 $serverdata['platform'] = 'GNU Social';
846 // Remove junk that some GNU Social servers return
847 $serverdata['version'] = str_replace(chr(239) . chr(187) . chr(191), '', $curlResult->getBody());
848 $serverdata['version'] = trim($serverdata['version'], '"');
849 $serverdata['network'] = Protocol::OSTATUS;
855 private static function detectFriendica($url, $serverdata)
857 $curlResult = Network::curl($url . '/friendica/json');
858 if (!$curlResult->isSuccess()) {
859 $curlResult = Network::curl($url . '/friendika/json');
862 if (!$curlResult->isSuccess()) {
866 $data = json_decode($curlResult->getBody(), true);
867 if (empty($data) || empty($data['version'])) {
871 $serverdata['network'] = Protocol::DFRN;
872 $serverdata['version'] = $data['version'];
874 if (!empty($data['no_scrape_url'])) {
875 $serverdata['noscrape'] = $data['no_scrape_url'];
878 if (!empty($data['site_name'])) {
879 $serverdata['site_name'] = $data['site_name'];
882 if (!empty($data['info'])) {
883 $serverdata['info'] = trim($data['info']);
886 $register_policy = defaults($data, 'register_policy', 'REGISTER_CLOSED');
887 switch ($register_policy) {
888 case 'REGISTER_OPEN':
889 $serverdata['register_policy'] = Register::OPEN;
892 case 'REGISTER_APPROVE':
893 $serverdata['register_policy'] = Register::APPROVE;
896 case 'REGISTER_CLOSED':
897 case 'REGISTER_INVITATION':
898 $serverdata['register_policy'] = Register::CLOSED;
901 Logger::info('Register policy is invalid', ['policy' => $register_policy, 'server' => $url]);
902 $serverdata['register_policy'] = Register::CLOSED;
906 $serverdata['platform'] = defaults($data, 'platform', '');
911 private static function analyseRootBody($curlResult, $serverdata)
913 $doc = new DOMDocument();
914 @$doc->loadHTML($curlResult->getBody());
915 $xpath = new DOMXPath($doc);
917 $title = trim(XML::getFirstNodeValue($xpath, '//head/title/text()'));
918 if (!empty($title)) {
919 $serverdata['site_name'] = $title;
922 $list = $xpath->query('//meta[@name]');
924 foreach ($list as $node) {
926 if ($node->attributes->length) {
927 foreach ($node->attributes as $attribute) {
928 $attribute->value = trim($attribute->value);
929 if (empty($attribute->value)) {
933 $attr[$attribute->name] = $attribute->value;
936 if (empty($attr['name']) || empty($attr['content'])) {
941 if ($attr['name'] == 'description') {
942 $serverdata['info'] = $attr['content'];
945 if ($attr['name'] == 'application-name') {
946 $serverdata['platform'] = $attr['content'];
947 if (in_array($attr['content'], ['Misskey', 'Write.as'])) {
948 $serverdata['network'] = Protocol::ACTIVITYPUB;
952 if ($attr['name'] == 'generator') {
953 $serverdata['platform'] = $attr['content'];
955 $version_part = explode(' ', $attr['content']);
957 if (count($version_part) == 2) {
958 if (in_array($version_part[0], ['WordPress'])) {
959 $serverdata['platform'] = $version_part[0];
960 $serverdata['version'] = $version_part[1];
961 $serverdata['network'] = Protocol::ACTIVITYPUB;
963 if (in_array($version_part[0], ['Friendika', 'Friendica'])) {
964 $serverdata['platform'] = $version_part[0];
965 $serverdata['version'] = $version_part[1];
966 $serverdata['network'] = Protocol::DFRN;
972 $list = $xpath->query('//meta[@property]');
974 foreach ($list as $node) {
976 if ($node->attributes->length) {
977 foreach ($node->attributes as $attribute) {
978 $attribute->value = trim($attribute->value);
979 if (empty($attribute->value)) {
983 $attr[$attribute->name] = $attribute->value;
986 if (empty($attr['property']) || empty($attr['content'])) {
991 if ($attr['property'] == 'og:site_name') {
992 $serverdata['site_name'] = $attr['content'];
995 if ($attr['property'] == 'og:description') {
996 $serverdata['info'] = $attr['content'];
999 if ($attr['property'] == 'og:platform') {
1000 $serverdata['platform'] = $attr['content'];
1002 if (in_array($attr['content'], ['PeerTube'])) {
1003 $serverdata['network'] = Protocol::ACTIVITYPUB;
1007 if ($attr['property'] == 'generator') {
1008 $serverdata['platform'] = $attr['content'];
1010 if (in_array($attr['content'], ['hubzilla'])) {
1011 // We later check which compatible protocol modules are loaded.
1012 $serverdata['network'] = Protocol::ZOT;
1020 private static function analyseRootHeader($curlResult, $serverdata)
1022 if ($curlResult->getHeader('server') == 'Mastodon') {
1023 $serverdata['platform'] = 'mastodon';
1024 $serverdata['network'] = $network = Protocol::ACTIVITYPUB;
1025 } elseif ($curlResult->inHeader('x-diaspora-version')) {
1026 $serverdata['platform'] = 'diaspora';
1027 $serverdata['network'] = $network = Protocol::DIASPORA;
1028 $serverdata['version'] = $curlResult->getHeader('x-diaspora-version');
1030 } elseif ($curlResult->inHeader('x-friendica-version')) {
1031 $serverdata['platform'] = 'friendica';
1032 $serverdata['network'] = $network = Protocol::DFRN;
1033 $serverdata['version'] = $curlResult->getHeader('x-friendica-version');