-namespace Friendica\Protocol;
-
-use DOMDocument;
-use DOMXPath;
-use Exception;
-use Friendica\Content\Text\HTML;
-use Friendica\Core\Config;
-use Friendica\Core\Logger;
-use Friendica\Core\Protocol;
-use Friendica\Core\Worker;
-use Friendica\Database\DBA;
-use Friendica\Model\GContact;
-use Friendica\Model\Profile;
-use Friendica\Network\Probe;
-use Friendica\Util\DateTimeFormat;
-use Friendica\Util\Network;
-use Friendica\Util\Strings;
-use Friendica\Util\XML;
-
-class PortableContact
-{
- /**
- * @brief Fetch POCO data
- *
- * @param integer $cid Contact ID
- * @param integer $uid User ID
- * @param integer $zcid Global Contact ID
- * @param integer $url POCO address that should be polled
- *
- * Given a contact-id (minimum), load the PortableContacts friend list for that contact,
- * and add the entries to the gcontact (Global Contact) table, or update existing entries
- * if anything (name or photo) has changed.
- * We use normalised urls for comparison which ignore http vs https and www.domain vs domain
- *
- * Once the global contact is stored add (if necessary) the contact linkage which associates
- * the given uid, cid to the global contact entry. There can be many uid/cid combinations
- * pointing to the same global contact id.
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function loadWorker($cid, $uid = 0, $zcid = 0, $url = null)
- {
- // Call the function "load" via the worker
- Worker::add(PRIORITY_LOW, "DiscoverPoCo", "load", (int)$cid, (int)$uid, (int)$zcid, $url);
- }
-
- /**
- * @brief Fetch POCO data from the worker
- *
- * @param integer $cid Contact ID
- * @param integer $uid User ID
- * @param integer $zcid Global Contact ID
- * @param integer $url POCO address that should be polled
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- public static function load($cid, $uid, $zcid, $url)
- {
- $a = \get_app();
-
- if ($cid) {
- if (!$url || !$uid) {
- $contact = DBA::selectFirst('contact', ['poco', 'uid'], ['id' => $cid]);
- if (DBA::isResult($contact)) {
- $url = $contact['poco'];
- $uid = $contact['uid'];
- }
- }
- if (!$uid) {
- return;
- }
- }
-
- if (!$url) {
- return;
- }
-
- $url = $url . (($uid) ? '/@me/@all?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation' : '?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,gender,contactType,generation');
-
- Logger::log('load: ' . $url, Logger::DEBUG);
-
- $fetchresult = Network::fetchUrlFull($url);
- $s = $fetchresult->getBody();
-
- Logger::log('load: returns ' . $s, Logger::DATA);
-
- Logger::log('load: return code: ' . $fetchresult->getReturnCode(), Logger::DEBUG);
-
- if (($fetchresult->getReturnCode() > 299) || (! $s)) {
- return;
- }
-
- $j = json_decode($s, true);
-
- Logger::log('load: json: ' . print_r($j, true), Logger::DATA);
-
- if (!isset($j['entry'])) {
- return;
- }
-
- $total = 0;
- foreach ($j['entry'] as $entry) {
- $total ++;
- $profile_url = '';
- $profile_photo = '';
- $connect_url = '';
- $name = '';
- $network = '';
- $updated = DBA::NULL_DATETIME;
- $location = '';
- $about = '';
- $keywords = '';
- $gender = '';
- $contact_type = -1;
- $generation = 0;
-
- if (!empty($entry['displayName'])) {
- $name = $entry['displayName'];
- }
-
- if (isset($entry['urls'])) {
- foreach ($entry['urls'] as $url) {
- if ($url['type'] == 'profile') {
- $profile_url = $url['value'];
- continue;
- }
- if ($url['type'] == 'webfinger') {
- $connect_url = str_replace('acct:', '', $url['value']);
- continue;
- }
- }
- }
- if (isset($entry['photos'])) {
- foreach ($entry['photos'] as $photo) {
- if ($photo['type'] == 'profile') {
- $profile_photo = $photo['value'];
- continue;
- }
- }
- }
-
- if (isset($entry['updated'])) {
- $updated = date(DateTimeFormat::MYSQL, strtotime($entry['updated']));
- }
-
- if (isset($entry['network'])) {
- $network = $entry['network'];
- }
-
- if (isset($entry['currentLocation'])) {
- $location = $entry['currentLocation'];
- }
-
- if (isset($entry['aboutMe'])) {
- $about = HTML::toBBCode($entry['aboutMe']);
- }
-
- if (isset($entry['gender'])) {
- $gender = $entry['gender'];
- }
-
- if (isset($entry['generation']) && ($entry['generation'] > 0)) {
- $generation = ++$entry['generation'];
- }
-
- if (isset($entry['tags'])) {
- foreach ($entry['tags'] as $tag) {
- $keywords = implode(", ", $tag);
- }
- }
-
- if (isset($entry['contactType']) && ($entry['contactType'] >= 0)) {
- $contact_type = $entry['contactType'];
- }
-
- $gcontact = ["url" => $profile_url,
- "name" => $name,
- "network" => $network,
- "photo" => $profile_photo,
- "about" => $about,
- "location" => $location,
- "gender" => $gender,
- "keywords" => $keywords,
- "connect" => $connect_url,
- "updated" => $updated,
- "contact-type" => $contact_type,
- "generation" => $generation];
-
- try {
- $gcontact = GContact::sanitize($gcontact);
- $gcid = GContact::update($gcontact);
-
- GContact::link($gcid, $uid, $cid, $zcid);
- } catch (Exception $e) {
- Logger::log($e->getMessage(), Logger::DEBUG);
- }
- }
- Logger::log("load: loaded $total entries", Logger::DEBUG);
-
- $condition = ["`cid` = ? AND `uid` = ? AND `zcid` = ? AND `updated` < UTC_TIMESTAMP - INTERVAL 2 DAY", $cid, $uid, $zcid];
- DBA::delete('glink', $condition);
- }
-
- public static function reachable($profile, $server = "", $network = "", $force = false)
- {
- if ($server == "") {
- $server = self::detectServer($profile);
- }
-
- if ($server == "") {
- return true;
- }
-
- return self::checkServer($server, $network, $force);
- }
-
- public static function detectServer($profile)
- {
- // Try to detect the server path based upon some known standard paths
- $server_url = "";
-
- if ($server_url == "") {
- $friendica = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $profile);
- if ($friendica != $profile) {
- $server_url = $friendica;
- $network = Protocol::DFRN;
- }
- }
-
- if ($server_url == "") {
- $diaspora = preg_replace("=(https?://)(.*)/u/(.*)=ism", "$1$2", $profile);
- if ($diaspora != $profile) {
- $server_url = $diaspora;
- $network = Protocol::DIASPORA;
- }
- }
-
- if ($server_url == "") {
- $red = preg_replace("=(https?://)(.*)/channel/(.*)=ism", "$1$2", $profile);
- if ($red != $profile) {
- $server_url = $red;
- $network = Protocol::DIASPORA;
- }
- }
-
- // Mastodon
- if ($server_url == "") {
- $mastodon = preg_replace("=(https?://)(.*)/users/(.*)=ism", "$1$2", $profile);
- if ($mastodon != $profile) {
- $server_url = $mastodon;
- $network = Protocol::OSTATUS;
- }
- }
-
- // Numeric OStatus variant
- if ($server_url == "") {
- $ostatus = preg_replace("=(https?://)(.*)/user/(.*)=ism", "$1$2", $profile);
- if ($ostatus != $profile) {
- $server_url = $ostatus;
- $network = Protocol::OSTATUS;
- }
- }
-
- // Wild guess
- if ($server_url == "") {
- $base = preg_replace("=(https?://)(.*?)/(.*)=ism", "$1$2", $profile);
- if ($base != $profile) {
- $server_url = $base;
- $network = Protocol::PHANTOM;
- }
- }
-
- if ($server_url == "") {
- return "";
- }
-
- $r = q(
- "SELECT `id` FROM `gserver` WHERE `nurl` = '%s' AND `last_contact` > `last_failure`",
- DBA::escape(Strings::normaliseLink($server_url))
- );
-
- if (DBA::isResult($r)) {
- return $server_url;
- }
-
- // Fetch the host-meta to check if this really is a server
- $curlResult = Network::curl($server_url."/.well-known/host-meta");
- if (!$curlResult->isSuccess()) {
- return "";
- }
-
- return $server_url;
- }
-
- public static function alternateOStatusUrl($url)
- {
- return(preg_match("=https?://.+/user/\d+=ism", $url, $matches));
- }
-
- public static function lastUpdated($profile, $force = false)
- {
- $gcontacts = q(
- "SELECT * FROM `gcontact` WHERE `nurl` = '%s'",
- DBA::escape(Strings::normaliseLink($profile))
- );
-
- if (!DBA::isResult($gcontacts)) {
- return false;
- }
-
- $contact = ["url" => $profile];
-
- if ($gcontacts[0]["created"] <= DBA::NULL_DATETIME) {
- $contact['created'] = DateTimeFormat::utcNow();
- }
-
- $server_url = '';
- if ($force) {
- $server_url = Strings::normaliseLink(self::detectServer($profile));
- }
-
- if (($server_url == '') && ($gcontacts[0]["server_url"] != "")) {
- $server_url = $gcontacts[0]["server_url"];
- }
-
- if (!$force && (($server_url == '') || ($gcontacts[0]["server_url"] == $gcontacts[0]["nurl"]))) {
- $server_url = Strings::normaliseLink(self::detectServer($profile));
- }
-
- if (!in_array($gcontacts[0]["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::FEED, Protocol::OSTATUS, ""])) {
- Logger::log("Profile ".$profile.": Network type ".$gcontacts[0]["network"]." can't be checked", Logger::DEBUG);
- return false;
- }
-
- if ($server_url != "") {
- if (!self::checkServer($server_url, $gcontacts[0]["network"], $force)) {
- if ($force) {
- $fields = ['last_failure' => DateTimeFormat::utcNow()];
- DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
- }
-
- Logger::log("Profile ".$profile.": Server ".$server_url." wasn't reachable.", Logger::DEBUG);
- return false;
- }
- $contact['server_url'] = $server_url;
- }
-
- if (in_array($gcontacts[0]["network"], ["", Protocol::FEED])) {
- $server = q(
- "SELECT `network` FROM `gserver` WHERE `nurl` = '%s' AND `network` != ''",
- DBA::escape(Strings::normaliseLink($server_url))
- );
-
- if ($server) {
- $contact['network'] = $server[0]["network"];
- } else {
- return false;
- }
- }
-
- // noscrape is really fast so we don't cache the call.
- if (($server_url != "") && ($gcontacts[0]["nick"] != "")) {
- // Use noscrape if possible
- $server = q("SELECT `noscrape`, `network` FROM `gserver` WHERE `nurl` = '%s' AND `noscrape` != ''", DBA::escape(Strings::normaliseLink($server_url)));
-
- if ($server) {
- $curlResult = Network::curl($server[0]["noscrape"]."/".$gcontacts[0]["nick"]);
-
- if ($curlResult->isSuccess() && ($curlResult->getBody() != "")) {
- $noscrape = json_decode($curlResult->getBody(), true);
-
- if (is_array($noscrape)) {
- $contact["network"] = $server[0]["network"];
-
- if (isset($noscrape["fn"])) {
- $contact["name"] = $noscrape["fn"];
- }
- if (isset($noscrape["comm"])) {
- $contact["community"] = $noscrape["comm"];
- }
- if (isset($noscrape["tags"])) {
- $keywords = implode(" ", $noscrape["tags"]);
- if ($keywords != "") {
- $contact["keywords"] = $keywords;
- }
- }
-
- $location = Profile::formatLocation($noscrape);
- if ($location) {
- $contact["location"] = $location;
- }
- if (isset($noscrape["dfrn-notify"])) {
- $contact["notify"] = $noscrape["dfrn-notify"];
- }
- // Remove all fields that are not present in the gcontact table
- unset($noscrape["fn"]);
- unset($noscrape["key"]);
- unset($noscrape["homepage"]);
- unset($noscrape["comm"]);
- unset($noscrape["tags"]);
- unset($noscrape["locality"]);
- unset($noscrape["region"]);
- unset($noscrape["country-name"]);
- unset($noscrape["contacts"]);
- unset($noscrape["dfrn-request"]);
- unset($noscrape["dfrn-confirm"]);
- unset($noscrape["dfrn-notify"]);
- unset($noscrape["dfrn-poll"]);
-
- // Set the date of the last contact
- /// @todo By now the function "update_gcontact" doesn't work with this field
- //$contact["last_contact"] = DateTimeFormat::utcNow();
-
- $contact = array_merge($contact, $noscrape);
-
- GContact::update($contact);
-
- if (!empty($noscrape["updated"])) {
- $fields = ['last_contact' => DateTimeFormat::utcNow()];
- DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
- Logger::log("Profile ".$profile." was last updated at ".$noscrape["updated"]." (noscrape)", Logger::DEBUG);
-
- return $noscrape["updated"];
- }
- }
- }
- }
- }
-
- // If we only can poll the feed, then we only do this once a while
- if (!$force && !self::updateNeeded($gcontacts[0]["created"], $gcontacts[0]["updated"], $gcontacts[0]["last_failure"], $gcontacts[0]["last_contact"])) {
- Logger::log("Profile ".$profile." was last updated at ".$gcontacts[0]["updated"]." (cached)", Logger::DEBUG);
-
- GContact::update($contact);
- return $gcontacts[0]["updated"];
- }
-
- $data = Probe::uri($profile);
-
- // Is the profile link the alternate OStatus link notation? (http://domain.tld/user/4711)
- // Then check the other link and delete this one
- if (($data["network"] == Protocol::OSTATUS) && self::alternateOStatusUrl($profile)
- && (Strings::normaliseLink($profile) == Strings::normaliseLink($data["alias"]))
- && (Strings::normaliseLink($profile) != Strings::normaliseLink($data["url"]))
- ) {
- // Delete the old entry
- DBA::delete('gcontact', ['nurl' => Strings::normaliseLink($profile)]);
-
- $gcontact = array_merge($gcontacts[0], $data);
-
- $gcontact["server_url"] = $data["baseurl"];
-
- try {
- $gcontact = GContact::sanitize($gcontact);
- GContact::update($gcontact);
-
- self::lastUpdated($data["url"], $force);
- } catch (Exception $e) {
- Logger::log($e->getMessage(), Logger::DEBUG);
- }
-
- Logger::log("Profile ".$profile." was deleted", Logger::DEBUG);
- return false;
- }
-
- if (($data["poll"] == "") || (in_array($data["network"], [Protocol::FEED, Protocol::PHANTOM]))) {
- $fields = ['last_failure' => DateTimeFormat::utcNow()];
- DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
- Logger::log("Profile ".$profile." wasn't reachable (profile)", Logger::DEBUG);
- return false;
- }
-
- $contact = array_merge($contact, $data);
-
- $contact["server_url"] = $data["baseurl"];
-
- GContact::update($contact);
-
- $curlResult = Network::curl($data["poll"]);
-
- if (!$curlResult->isSuccess()) {
- $fields = ['last_failure' => DateTimeFormat::utcNow()];
- DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
- Logger::log("Profile ".$profile." wasn't reachable (no feed)", Logger::DEBUG);
- return false;
- }
-
- $doc = new DOMDocument();
- /// @TODO Avoid error supression here
- @$doc->loadXML($curlResult->getBody());
-
- $xpath = new DOMXPath($doc);
- $xpath->registerNamespace('atom', "http://www.w3.org/2005/Atom");
-
- $entries = $xpath->query('/atom:feed/atom:entry');
-
- $last_updated = "";
-
- foreach ($entries as $entry) {
- $published = DateTimeFormat::utc($xpath->query('atom:published/text()', $entry)->item(0)->nodeValue);
- $updated = DateTimeFormat::utc($xpath->query('atom:updated/text()' , $entry)->item(0)->nodeValue);
-
- if ($last_updated < $published) {
- $last_updated = $published;
- }
-
- if ($last_updated < $updated) {
- $last_updated = $updated;
- }
- }
-
- // Maybe there aren't any entries. Then check if it is a valid feed
- if ($last_updated == "") {
- if ($xpath->query('/atom:feed')->length > 0) {
- $last_updated = DBA::NULL_DATETIME;
- }
- }
-
- $fields = ['last_contact' => DateTimeFormat::utcNow()];
-
- if (!empty($last_updated)) {
- $fields['updated'] = $last_updated;
- }
-
- DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
-
- if (($gcontacts[0]["generation"] == 0)) {
- $fields = ['generation' => 9];
- DBA::update('gcontact', $fields, ['nurl' => Strings::normaliseLink($profile)]);
- }
-
- Logger::log("Profile ".$profile." was last updated at ".$last_updated, Logger::DEBUG);
-
- return $last_updated;
- }
-
- public static function updateNeeded($created, $updated, $last_failure, $last_contact)
- {
- $now = strtotime(DateTimeFormat::utcNow());
-
- if ($updated > $last_contact) {
- $contact_time = strtotime($updated);
- } else {
- $contact_time = strtotime($last_contact);
- }
-
- $failure_time = strtotime($last_failure);
- $created_time = strtotime($created);
-
- // If there is no "created" time then use the current time
- if ($created_time <= 0) {
- $created_time = $now;
- }
-
- // If the last contact was less than 24 hours then don't update
- if (($now - $contact_time) < (60 * 60 * 24)) {
- return false;
- }
-
- // If the last failure was less than 24 hours then don't update
- if (($now - $failure_time) < (60 * 60 * 24)) {
- return false;
- }
-
- // If the last contact was less than a week ago and the last failure is older than a week then don't update
- //if ((($now - $contact_time) < (60 * 60 * 24 * 7)) && ($contact_time > $failure_time))
- // return false;
-
- // If the last contact time was more than a week ago and the contact was created more than a week ago, then only try once a week
- if ((($now - $contact_time) > (60 * 60 * 24 * 7)) && (($now - $created_time) > (60 * 60 * 24 * 7)) && (($now - $failure_time) < (60 * 60 * 24 * 7))) {
- return false;
- }
-
- // If the last contact time was more than a month ago and the contact was created more than a month ago, then only try once a month
- if ((($now - $contact_time) > (60 * 60 * 24 * 30)) && (($now - $created_time) > (60 * 60 * 24 * 30)) && (($now - $failure_time) < (60 * 60 * 24 * 30))) {
- return false;
- }
-
- return true;
- }
-
- /// @TODO Maybe move this out to an utilities class?
- private static function toBoolean($val)
- {
- if (($val == "true") || ($val == 1)) {
- return true;
- } elseif (($val == "false") || ($val == 0)) {
- return false;
- }
-
- return $val;
- }
-
- /**
- * @brief Detect server type (Hubzilla or Friendica) via the poco data
- *
- * @param array $data POCO data
- * @return array Server data
- */
- private static function detectPocoData(array $data)
- {
- $server = false;
-
- if (!isset($data['entry'])) {
- return false;
- }
-
- if (count($data['entry']) == 0) {
- return false;
- }
-
- if (!isset($data['entry'][0]['urls'])) {
- return false;
- }
-
- if (count($data['entry'][0]['urls']) == 0) {
- return false;
- }
-
- foreach ($data['entry'][0]['urls'] as $url) {
- if ($url['type'] == 'zot') {
- $server = [];
- $server["platform"] = 'Hubzilla';
- $server["network"] = Protocol::DIASPORA;
- return $server;
- }
- }
- return false;
- }
-
- /**
- * @brief Detect server type by using the nodeinfo data
- *
- * @param string $server_url address of the server
- * @return array Server data
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- private static function fetchNodeinfo($server_url)
- {
- $curlResult = Network::curl($server_url."/.well-known/nodeinfo");
- if (!$curlResult->isSuccess()) {
- return false;
- }
-
- $nodeinfo = json_decode($curlResult->getBody(), true);
-
- if (!is_array($nodeinfo) || !isset($nodeinfo['links'])) {
- return false;
- }
-
- $nodeinfo1_url = '';
- $nodeinfo2_url = '';
-
- foreach ($nodeinfo['links'] as $link) {
- if (!is_array($link) || empty($link['rel'])) {
- Logger::log('Invalid nodeinfo format for ' . $server_url, Logger::DEBUG);
- continue;
- }
- if ($link['rel'] == 'http://nodeinfo.diaspora.software/ns/schema/1.0') {
- $nodeinfo1_url = $link['href'];
- } elseif ($link['rel'] == 'http://nodeinfo.diaspora.software/ns/schema/2.0') {
- $nodeinfo2_url = $link['href'];
- }
- }
-
- if ($nodeinfo1_url . $nodeinfo2_url == '') {
- return false;
- }
-
- $server = [];
-
- // When the nodeinfo url isn't on the same host, then there is obviously something wrong
- if (!empty($nodeinfo2_url) && (parse_url($server_url, PHP_URL_HOST) == parse_url($nodeinfo2_url, PHP_URL_HOST))) {
- $server = self::parseNodeinfo2($nodeinfo2_url);
- }
-
- // When the nodeinfo url isn't on the same host, then there is obviously something wrong
- if (empty($server) && !empty($nodeinfo1_url) && (parse_url($server_url, PHP_URL_HOST) == parse_url($nodeinfo1_url, PHP_URL_HOST))) {
- $server = self::parseNodeinfo1($nodeinfo1_url);
- }
-
- return $server;
- }
-
- /**
- * @brief Parses Nodeinfo 1
- *
- * @param string $nodeinfo_url address of the nodeinfo path
- * @return array Server data
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- private static function parseNodeinfo1($nodeinfo_url)
- {
- $curlResult = Network::curl($nodeinfo_url);
-
- if (!$curlResult->isSuccess()) {
- return false;
- }
-
- $nodeinfo = json_decode($curlResult->getBody(), true);
-
- if (!is_array($nodeinfo)) {
- return false;
- }
-
- $server = [];
-
- $server['register_policy'] = REGISTER_CLOSED;
-
- if (is_bool($nodeinfo['openRegistrations']) && $nodeinfo['openRegistrations']) {
- $server['register_policy'] = REGISTER_OPEN;
- }
-
- if (is_array($nodeinfo['software'])) {
- if (isset($nodeinfo['software']['name'])) {
- $server['platform'] = $nodeinfo['software']['name'];
- }
-
- if (isset($nodeinfo['software']['version'])) {
- $server['version'] = $nodeinfo['software']['version'];
- // Version numbers on Nodeinfo are presented with additional info, e.g.:
- // 0.6.3.0-p1702cc1c, 0.6.99.0-p1b9ab160 or 3.4.3-2-1191.
- $server['version'] = preg_replace("=(.+)-(.{4,})=ism", "$1", $server['version']);
- }
- }
-
- if (isset($nodeinfo['metadata']['nodeName'])) {
- $server['site_name'] = $nodeinfo['metadata']['nodeName'];
- }
-
- if (!empty($nodeinfo['usage']['users']['total'])) {
- $server['registered-users'] = $nodeinfo['usage']['users']['total'];
- }
-
- $diaspora = false;
- $friendica = false;
- $gnusocial = false;
-
- if (is_array($nodeinfo['protocols']['inbound'])) {
- foreach ($nodeinfo['protocols']['inbound'] as $inbound) {
- if ($inbound == 'diaspora') {
- $diaspora = true;
- }
- if ($inbound == 'friendica') {
- $friendica = true;
- }
- if ($inbound == 'gnusocial') {
- $gnusocial = true;
- }
- }
- }
-
- if ($gnusocial) {
- $server['network'] = Protocol::OSTATUS;
- }
- if ($diaspora) {
- $server['network'] = Protocol::DIASPORA;
- }
- if ($friendica) {
- $server['network'] = Protocol::DFRN;
- }
-
- if (!$server) {
- return false;
- }
-
- return $server;
- }
-
- /**
- * @brief Parses Nodeinfo 2
- *
- * @param string $nodeinfo_url address of the nodeinfo path
- * @return array Server data
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- */
- private static function parseNodeinfo2($nodeinfo_url)
- {
- $curlResult = Network::curl($nodeinfo_url);
- if (!$curlResult->isSuccess()) {
- return false;
- }
-
- $nodeinfo = json_decode($curlResult->getBody(), true);
-
- if (!is_array($nodeinfo)) {
- return false;
- }
-
- $server = [];
-
- $server['register_policy'] = REGISTER_CLOSED;
-
- if (is_bool($nodeinfo['openRegistrations']) && $nodeinfo['openRegistrations']) {
- $server['register_policy'] = REGISTER_OPEN;
- }
-
- if (is_array($nodeinfo['software'])) {
- if (isset($nodeinfo['software']['name'])) {
- $server['platform'] = $nodeinfo['software']['name'];
- }
-
- if (isset($nodeinfo['software']['version'])) {
- $server['version'] = $nodeinfo['software']['version'];
- // Version numbers on Nodeinfo are presented with additional info, e.g.:
- // 0.6.3.0-p1702cc1c, 0.6.99.0-p1b9ab160 or 3.4.3-2-1191.
- $server['version'] = preg_replace("=(.+)-(.{4,})=ism", "$1", $server['version']);
- }
- }
-
- if (isset($nodeinfo['metadata']['nodeName'])) {
- $server['site_name'] = $nodeinfo['metadata']['nodeName'];
- }
-
- if (!empty($nodeinfo['usage']['users']['total'])) {
- $server['registered-users'] = $nodeinfo['usage']['users']['total'];
- }
-
- $diaspora = false;
- $friendica = false;
- $gnusocial = false;
-
- if (!empty($nodeinfo['protocols'])) {
- foreach ($nodeinfo['protocols'] as $protocol) {
- if ($protocol == 'diaspora') {
- $diaspora = true;
- } elseif ($protocol == 'friendica') {
- $friendica = true;
- } elseif ($protocol == 'gnusocial') {
- $gnusocial = true;
- }
- }
- }
-
- if ($gnusocial) {
- $server['network'] = Protocol::OSTATUS;
- } elseif ($diaspora) {
- $server['network'] = Protocol::DIASPORA;
- } elseif ($friendica) {
- $server['network'] = Protocol::DFRN;
- }
-
- if (empty($server)) {
- return false;
- }
-
- return $server;
- }
-
- /**
- * @brief Detect server type (Hubzilla or Friendica) via the front page body
- *
- * @param string $body Front page of the server
- * @return array Server data
- */
- private static function detectServerType($body)
- {
- $server = false;
-
- $doc = new DOMDocument();
- /// @TODO Acoid supressing error
- @$doc->loadHTML($body);
- $xpath = new DOMXPath($doc);
-
- $list = $xpath->query("//meta[@name]");
-
- foreach ($list as $node) {
- $attr = [];
- if ($node->attributes->length) {
- foreach ($node->attributes as $attribute) {
- $attr[$attribute->name] = $attribute->value;
- }
- }
- if ($attr['name'] == 'generator') {
- $version_part = explode(" ", $attr['content']);
- if (count($version_part) == 2) {
- if (in_array($version_part[0], ["Friendika", "Friendica"])) {
- $server = [];
- $server["platform"] = $version_part[0];
- $server["version"] = $version_part[1];
- $server["network"] = Protocol::DFRN;
- }
- }
- }
- }
-
- if (!$server) {
- $list = $xpath->query("//meta[@property]");
-
- foreach ($list as $node) {
- $attr = [];
- if ($node->attributes->length) {
- foreach ($node->attributes as $attribute) {
- $attr[$attribute->name] = $attribute->value;
- }
- }
- if ($attr['property'] == 'generator' && in_array($attr['content'], ["hubzilla", "BlaBlaNet"])) {
- $server = [];
- $server["platform"] = $attr['content'];
- $server["version"] = "";
- $server["network"] = Protocol::DIASPORA;
- }
- }
- }
-
- if (!$server) {
- return false;
- }
-
- $server["site_name"] = XML::getFirstNodeValue($xpath, '//head/title/text()');
-
- return $server;
- }
-
- public static function checkServer($server_url, $network = "", $force = false)
- {
- // Unify the server address
- $server_url = trim($server_url, "/");
- $server_url = str_replace("/index.php", "", $server_url);
-
- if ($server_url == "") {
- return false;
- }
-
- $gserver = DBA::selectFirst('gserver', [], ['nurl' => Strings::normaliseLink($server_url)]);
- if (DBA::isResult($gserver)) {
- if ($gserver["created"] <= DBA::NULL_DATETIME) {
- $fields = ['created' => DateTimeFormat::utcNow()];
- $condition = ['nurl' => Strings::normaliseLink($server_url)];
- DBA::update('gserver', $fields, $condition);
- }
- $poco = $gserver["poco"];
- $noscrape = $gserver["noscrape"];
-
- if ($network == "") {
- $network = $gserver["network"];
- }
-
- $last_contact = $gserver["last_contact"];
- $last_failure = $gserver["last_failure"];
- $version = $gserver["version"];
- $platform = $gserver["platform"];
- $site_name = $gserver["site_name"];
- $info = $gserver["info"];
- $register_policy = $gserver["register_policy"];
- $registered_users = $gserver["registered-users"];
-
- // See discussion under https://forum.friendi.ca/display/0b6b25a8135aabc37a5a0f5684081633
- // It can happen that a zero date is in the database, but storing it again is forbidden.
- if ($last_contact < DBA::NULL_DATETIME) {
- $last_contact = DBA::NULL_DATETIME;
- }
-
- if ($last_failure < DBA::NULL_DATETIME) {
- $last_failure = DBA::NULL_DATETIME;
- }
-
- if (!$force && !self::updateNeeded($gserver["created"], "", $last_failure, $last_contact)) {
- Logger::log("Use cached data for server ".$server_url, Logger::DEBUG);
- return ($last_contact >= $last_failure);
- }
- } else {
- $poco = "";
- $noscrape = "";
- $version = "";
- $platform = "";
- $site_name = "";
- $info = "";
- $register_policy = -1;
- $registered_users = 0;
-
- $last_contact = DBA::NULL_DATETIME;
- $last_failure = DBA::NULL_DATETIME;
- }
- Logger::log("Server ".$server_url." is outdated or unknown. Start discovery. Force: ".$force." Created: ".$gserver["created"]." Failure: ".$last_failure." Contact: ".$last_contact, Logger::DEBUG);
-
- $failure = false;
- $possible_failure = false;
- $orig_last_failure = $last_failure;
- $orig_last_contact = $last_contact;
-
- // Mastodon uses the "@" for user profiles.
- // But this can be misunderstood.
- if (parse_url($server_url, PHP_URL_USER) != '') {
- DBA::update('gserver', ['last_failure' => DateTimeFormat::utcNow()], ['nurl' => Strings::normaliseLink($server_url)]);
- return false;
- }
-
- // Check if the page is accessible via SSL.
- $orig_server_url = $server_url;
- $server_url = str_replace("http://", "https://", $server_url);
-
- // We set the timeout to 20 seconds since this operation should be done in no time if the server was vital
- $curlResult = Network::curl($server_url."/.well-known/host-meta", false, $redirects, ['timeout' => 20]);
-
- // Quit if there is a timeout.
- // But we want to make sure to only quit if we are mostly sure that this server url fits.
- if (DBA::isResult($gserver) && ($orig_server_url == $server_url) &&
- ($curlResult->isTimeout())) {
- Logger::log("Connection to server ".$server_url." timed out.", Logger::DEBUG);
- DBA::update('gserver', ['last_failure' => DateTimeFormat::utcNow()], ['nurl' => Strings::normaliseLink($server_url)]);
- return false;
- }
-
- // Maybe the page is unencrypted only?
- $xmlobj = @simplexml_load_string($curlResult->getBody(), 'SimpleXMLElement', 0, "http://docs.oasis-open.org/ns/xri/xrd-1.0");
- if (!$curlResult->isSuccess() || ($curlResult->getBody() == "") || empty($xmlobj) || !is_object($xmlobj)) {
- $server_url = str_replace("https://", "http://", $server_url);
-
- // We set the timeout to 20 seconds since this operation should be done in no time if the server was vital
- $curlResult = Network::curl($server_url."/.well-known/host-meta", false, $redirects, ['timeout' => 20]);
-
- // Quit if there is a timeout
- if ($curlResult->isTimeout()) {
- Logger::log("Connection to server " . $server_url . " timed out.", Logger::DEBUG);
- DBA::update('gserver', ['last_failure' => DateTimeFormat::utcNow()], ['nurl' => Strings::normaliseLink($server_url)]);
- return false;
- }
-
- $xmlobj = @simplexml_load_string($curlResult->getBody(), 'SimpleXMLElement', 0, "http://docs.oasis-open.org/ns/xri/xrd-1.0");
- }
-
- if (!$curlResult->isSuccess() || ($curlResult->getBody() == "") || empty($xmlobj) || !is_object($xmlobj)) {
- // Workaround for bad configured servers (known nginx problem)
- if (!empty($curlResult->getInfo()) && !in_array($curlResult->getInfo()["http_code"], ["403", "404"])) {
- $failure = true;
- }
-
- $possible_failure = true;
- }
-
- // If the server has no possible failure we reset the cached data
- if (!$possible_failure) {
- $version = "";
- $platform = "";
- $site_name = "";
- $info = "";
- $register_policy = -1;
- }
-
- if (!$failure) {
- // This will be too low, but better than no value at all.
- $registered_users = DBA::count('gcontact', ['server_url' => Strings::normaliseLink($server_url)]);
- }
-
- // Look for poco
- if (!$failure) {
- $curlResult = Network::curl($server_url."/poco");
-
- if ($curlResult->isSuccess()) {
- $data = json_decode($curlResult->getBody(), true);
-
- if (isset($data['totalResults'])) {
- $registered_users = $data['totalResults'];
- $poco = $server_url . "/poco";
- $server = self::detectPocoData($data);
-
- if (!empty($server)) {
- $platform = $server['platform'];
- $network = $server['network'];
- $version = '';
- $site_name = '';
- }
- }
-
- /*
- * There are servers out there who don't return 404 on a failure
- * We have to be sure that don't misunderstand this
- */
- if (is_null($data)) {
- $poco = "";
- $noscrape = "";
- $network = "";
- }
- }
- }
-
- if (!$failure) {
- // Test for Diaspora, Hubzilla, Mastodon or older Friendica servers
- $curlResult = Network::curl($server_url);
-
- if (!$curlResult->isSuccess() || ($curlResult->getBody() == "")) {
- $failure = true;
- } else {
- $server = self::detectServerType($curlResult->getBody());
-
- if (!empty($server)) {
- $platform = $server['platform'];
- $network = $server['network'];
- $version = $server['version'];
- $site_name = $server['site_name'];
- }
-
- $lines = explode("\n", $curlResult->getHeader());
-
- if (count($lines)) {
- foreach ($lines as $line) {
- $line = trim($line);
-
- if (stristr($line, 'X-Diaspora-Version:')) {
- $platform = "Diaspora";
- $version = trim(str_replace("X-Diaspora-Version:", "", $line));
- $version = trim(str_replace("x-diaspora-version:", "", $version));
- $network = Protocol::DIASPORA;
- $versionparts = explode("-", $version);
- $version = $versionparts[0];
- }
-
- if (stristr($line, 'Server: Mastodon')) {
- $platform = "Mastodon";
- $network = Protocol::OSTATUS;
- }
- }
- }
- }
- }
-
- if (!$failure && ($poco == "")) {
- // Test for Statusnet
- // Will also return data for Friendica and GNU Social - but it will be overwritten later
- // The "not implemented" is a special treatment for really, really old Friendica versions
- $curlResult = Network::curl($server_url."/api/statusnet/version.json");
-
- if ($curlResult->isSuccess() && ($curlResult->getBody() != '{"error":"not implemented"}') &&
- ($curlResult->getBody() != '') && (strlen($curlResult->getBody()) < 30)) {
- $platform = "StatusNet";
- // Remove junk that some GNU Social servers return
- $version = str_replace(chr(239).chr(187).chr(191), "", $curlResult->getBody());
- $version = trim($version, '"');
- $network = Protocol::OSTATUS;
- }
-
- // Test for GNU Social
- $curlResult = Network::curl($server_url."/api/gnusocial/version.json");
-
- if ($curlResult->isSuccess() && ($curlResult->getBody() != '{"error":"not implemented"}') &&
- ($curlResult->getBody() != '') && (strlen($curlResult->getBody()) < 30)) {
- $platform = "GNU Social";
- // Remove junk that some GNU Social servers return
- $version = str_replace(chr(239) . chr(187) . chr(191), "", $curlResult->getBody());
- $version = trim($version, '"');
- $network = Protocol::OSTATUS;
- }
-
- // Test for Mastodon
- $orig_version = $version;
- $curlResult = Network::curl($server_url . "/api/v1/instance");
-
- if ($curlResult->isSuccess() && ($curlResult->getBody() != '')) {
- $data = json_decode($curlResult->getBody(), true);
-
- if (isset($data['version'])) {
- $platform = "Mastodon";
- $version = defaults($data, 'version', '');
- $site_name = defaults($data, 'title', '');
- $info = defaults($data, 'description', '');
- $network = Protocol::OSTATUS;
- }
-
- if (!empty($data['stats']['user_count'])) {
- $registered_users = $data['stats']['user_count'];
- }
- }
-
- if (strstr($orig_version . $version, 'Pleroma')) {
- $platform = 'Pleroma';
- $version = trim(str_replace('Pleroma', '', $version));
- }
- }
-
- if (!$failure) {
- // Test for Hubzilla and Red
- $curlResult = Network::curl($server_url . "/siteinfo.json");
-
- if ($curlResult->isSuccess()) {
- $data = json_decode($curlResult->getBody(), true);
-
- if (isset($data['url'])) {
- $platform = $data['platform'];
- $version = $data['version'];
- $network = Protocol::DIASPORA;
- }
-
- if (!empty($data['site_name'])) {
- $site_name = $data['site_name'];
- }
-
- if (!empty($data['channels_total'])) {
- $registered_users = $data['channels_total'];
- }
-
- if (!empty($data['register_policy'])) {
- switch ($data['register_policy']) {
- case "REGISTER_OPEN":
- $register_policy = REGISTER_OPEN;
- break;