304 lines
9.2 KiB
PHP
304 lines
9.2 KiB
PHP
<?php
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/**
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* @file src/Worker/DiscoverPoCo.php
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*/
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namespace Friendica\Worker;
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use Friendica\Core\Cache;
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use Friendica\Core\Config;
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use Friendica\Core\Logger;
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use Friendica\Core\Protocol;
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use Friendica\Core\Worker;
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use Friendica\Database\DBA;
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use Friendica\Model\GContact;
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use Friendica\Network\Probe;
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use Friendica\Protocol\PortableContact;
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use Friendica\Util\DateTimeFormat;
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use Friendica\Util\Network;
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use Friendica\Util\Strings;
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class DiscoverPoCo
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{
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/// @todo Clean up this mess of a parameter hell and split it in several classes
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public static function execute($command = '', $param1 = '', $param2 = '', $param3 = '', $param4 = '')
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{
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/*
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This function can be called in these ways:
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- dirsearch <search pattern>: Searches for "search pattern" in the directory. "search pattern" is url encoded.
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- checkcontact: Updates gcontact entries
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- suggestions: Discover other servers for their contacts.
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- server <poco url>: Searches for the poco server list. "poco url" is base64 encoded.
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- update_server: Frequently check the first 250 servers for vitality.
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- update_server_directory: Discover the given server id for their contacts
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- PortableContact::load: Load POCO data from a given POCO address
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- check_profile: Update remote profile data
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*/
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$search = "";
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$mode = 0;
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if ($command == "dirsearch") {
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$search = urldecode($param1);
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$mode = 1;
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} elseif ($command == "checkcontact") {
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$mode = 2;
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} elseif ($command == "suggestions") {
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$mode = 3;
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} elseif ($command == "server") {
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$mode = 4;
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} elseif ($command == "update_server") {
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$mode = 5;
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} elseif ($command == "update_server_directory") {
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$mode = 6;
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} elseif ($command == "load") {
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$mode = 7;
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} elseif ($command == "check_profile") {
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$mode = 8;
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} elseif ($command !== "") {
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Logger::log("Unknown or missing parameter ".$command."\n");
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return;
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}
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Logger::log('start '.$search);
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if ($mode == 8) {
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if ($param1 != "") {
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PortableContact::lastUpdated($param1, true);
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}
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} elseif ($mode == 7) {
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if (!empty($param4)) {
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$url = $param4;
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} else {
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$url = '';
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}
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PortableContact::load(intval($param1), intval($param2), intval($param3), $url);
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} elseif ($mode == 6) {
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PortableContact::discoverSingleServer(intval($param1));
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} elseif ($mode == 5) {
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self::updateServer();
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} elseif ($mode == 4) {
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$server_url = $param1;
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if ($server_url == "") {
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return;
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}
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$server_url = filter_var($server_url, FILTER_SANITIZE_URL);
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if (substr(Strings::normaliseLink($server_url), 0, 7) != "http://") {
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return;
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}
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$result = "Checking server ".$server_url." - ";
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$ret = PortableContact::checkServer($server_url);
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if ($ret) {
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$result .= "success";
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} else {
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$result .= "failed";
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}
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Logger::log($result, Logger::DEBUG);
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} elseif ($mode == 3) {
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GContact::updateSuggestions();
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} elseif (($mode == 2) && Config::get('system', 'poco_completion')) {
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self::discoverUsers();
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} elseif (($mode == 1) && ($search != "") && Config::get('system', 'poco_local_search')) {
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self::discoverDirectory($search);
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self::gsSearchUser($search);
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} elseif (($mode == 0) && ($search == "") && (Config::get('system', 'poco_discovery') != PortableContact::DISABLED)) {
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// Query Friendica and Hubzilla servers for their users
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PortableContact::discover();
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// Query GNU Social servers for their users ("statistics" addon has to be enabled on the GS server)
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if (!Config::get('system', 'ostatus_disabled')) {
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GContact::discoverGsUsers();
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}
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}
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Logger::log('end '.$search);
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return;
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}
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/**
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* @brief Updates the first 250 servers
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*
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*/
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private static function updateServer() {
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$r = q("SELECT `url`, `created`, `last_failure`, `last_contact` FROM `gserver` ORDER BY rand()");
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if (!DBA::isResult($r)) {
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return;
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}
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$updated = 0;
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foreach ($r AS $server) {
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if (!PortableContact::updateNeeded($server["created"], "", $server["last_failure"], $server["last_contact"])) {
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continue;
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}
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Logger::log('Update server status for server '.$server["url"], Logger::DEBUG);
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Worker::add(PRIORITY_LOW, "DiscoverPoCo", "server", $server["url"]);
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if (++$updated > 250) {
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return;
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}
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}
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}
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private static function discoverUsers() {
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Logger::log("Discover users", Logger::DEBUG);
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$starttime = time();
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$users = q("SELECT `url`, `created`, `updated`, `last_failure`, `last_contact`, `server_url`, `network` FROM `gcontact`
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WHERE `last_contact` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
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`last_failure` < UTC_TIMESTAMP - INTERVAL 1 MONTH AND
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`network` IN ('%s', '%s', '%s', '%s', '') ORDER BY rand()",
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DBA::escape(Protocol::DFRN), DBA::escape(Protocol::DIASPORA),
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DBA::escape(Protocol::OSTATUS), DBA::escape(Protocol::FEED));
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if (!$users) {
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return;
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}
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$checked = 0;
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foreach ($users AS $user) {
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$urlparts = parse_url($user["url"]);
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if (!isset($urlparts["scheme"])) {
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DBA::update('gcontact', ['network' => Protocol::PHANTOM],
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['nurl' => Strings::normaliseLink($user["url"])]);
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continue;
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}
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if (in_array($urlparts["host"], ["twitter.com", "identi.ca"])) {
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$networks = ["twitter.com" => Protocol::TWITTER, "identi.ca" => Protocol::PUMPIO];
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DBA::update('gcontact', ['network' => $networks[$urlparts["host"]]],
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['nurl' => Strings::normaliseLink($user["url"])]);
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continue;
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}
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$server_url = PortableContact::detectServer($user["url"]);
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$force_update = false;
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if ($user["server_url"] != "") {
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$force_update = (Strings::normaliseLink($user["server_url"]) != Strings::normaliseLink($server_url));
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$server_url = $user["server_url"];
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}
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if ((($server_url == "") && ($user["network"] == Protocol::FEED)) || $force_update || PortableContact::checkServer($server_url, $user["network"])) {
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Logger::log('Check profile '.$user["url"]);
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Worker::add(PRIORITY_LOW, "DiscoverPoCo", "check_profile", $user["url"]);
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if (++$checked > 100) {
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return;
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}
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} else {
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DBA::update('gcontact', ['last_failure' => DateTimeFormat::utcNow()],
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['nurl' => Strings::normaliseLink($user["url"])]);
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}
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// Quit the loop after 3 minutes
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if (time() > ($starttime + 180)) {
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return;
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}
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}
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}
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private static function discoverDirectory($search) {
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$data = Cache::get("dirsearch:".$search);
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if (!is_null($data)) {
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// Only search for the same item every 24 hours
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if (time() < $data + (60 * 60 * 24)) {
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Logger::log("Already searched for ".$search." in the last 24 hours", Logger::DEBUG);
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return;
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}
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}
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$x = Network::fetchUrl(get_server()."/lsearch?p=1&n=500&search=".urlencode($search));
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$j = json_decode($x);
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if (!empty($j->results)) {
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foreach ($j->results as $jj) {
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// Check if the contact already exists
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$exists = q("SELECT `id`, `last_contact`, `last_failure`, `updated` FROM `gcontact` WHERE `nurl` = '%s'", Strings::normaliseLink($jj->url));
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if (DBA::isResult($exists)) {
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Logger::log("Profile ".$jj->url." already exists (".$search.")", Logger::DEBUG);
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if (($exists[0]["last_contact"] < $exists[0]["last_failure"]) &&
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($exists[0]["updated"] < $exists[0]["last_failure"])) {
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continue;
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}
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// Update the contact
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PortableContact::lastUpdated($jj->url);
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continue;
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}
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$server_url = PortableContact::detectServer($jj->url);
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if ($server_url != '') {
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if (!PortableContact::checkServer($server_url)) {
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Logger::log("Friendica server ".$server_url." doesn't answer.", Logger::DEBUG);
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continue;
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}
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Logger::log("Friendica server ".$server_url." seems to be okay.", Logger::DEBUG);
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}
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$data = Probe::uri($jj->url);
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if ($data["network"] == Protocol::DFRN) {
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Logger::log("Profile ".$jj->url." is reachable (".$search.")", Logger::DEBUG);
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Logger::log("Add profile ".$jj->url." to local directory (".$search.")", Logger::DEBUG);
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if ($jj->tags != "") {
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$data["keywords"] = $jj->tags;
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}
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$data["server_url"] = $data["baseurl"];
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GContact::update($data);
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} else {
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Logger::log("Profile ".$jj->url." is not responding or no Friendica contact - but network ".$data["network"], Logger::DEBUG);
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}
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}
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}
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Cache::set("dirsearch:".$search, time(), Cache::DAY);
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}
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/**
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* @brief Search for GNU Social user with gstools.org
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*
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* @param string $search User name
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* @return bool
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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private static function gsSearchUser($search) {
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// Currently disabled, since the service isn't available anymore.
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// It is not removed since I hope that there will be a successor.
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return false;
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$url = "http://gstools.org/api/users_search/".urlencode($search);
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$curlResult = Network::curl($url);
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if (!$curlResult->isSuccess()) {
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return false;
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}
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$contacts = json_decode($curlResult->getBody());
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if ($contacts->status == 'ERROR') {
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return false;
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}
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/// @TODO AS is considered as a notation for constants (as they usually being written all upper-case)
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/// @TODO find all those and convert to all lower-case which is a keyword then
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foreach ($contacts->data AS $user) {
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$contact = Probe::uri($user->site_address."/".$user->name);
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if ($contact["network"] != Protocol::PHANTOM) {
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$contact["about"] = $user->description;
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GContact::update($contact);
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}
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}
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}
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}
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