494 lines
13 KiB
PHP
494 lines
13 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Protocol;
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use Exception;
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use Friendica\Content\Text\HTML;
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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\DI;
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use Friendica\Model\GContact;
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use Friendica\Model\GServer;
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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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/**
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*
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* @todo Move GNU Social URL schemata (http://server.tld/user/number) to http://server.tld/username
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* @todo Fetch profile data from profile page for Redmatrix users
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* @todo Detect if it is a forum
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*/
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class PortableContact
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{
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const DISABLED = 0;
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const USERS = 1;
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const USERS_GCONTACTS = 2;
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const USERS_GCONTACTS_FALLBACK = 3;
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/**
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* Fetch POCO data
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*
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* @param integer $cid Contact ID
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* @param integer $uid User ID
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* @param integer $zcid Global Contact ID
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* @param integer $url POCO address that should be polled
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*
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* Given a contact-id (minimum), load the PortableContacts friend list for that contact,
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* and add the entries to the gcontact (Global Contact) table, or update existing entries
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* if anything (name or photo) has changed.
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* We use normalised urls for comparison which ignore http vs https and www.domain vs domain
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*
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* Once the global contact is stored add (if necessary) the contact linkage which associates
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* the given uid, cid to the global contact entry. There can be many uid/cid combinations
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* pointing to the same global contact id.
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function loadWorker($cid, $uid = 0, $zcid = 0, $url = null)
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{
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// Call the function "load" via the worker
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Worker::add(PRIORITY_LOW, 'FetchPoCo', (int)$cid, (int)$uid, (int)$zcid, $url);
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}
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/**
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* Fetch POCO data from the worker
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*
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* @param integer $cid Contact ID
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* @param integer $uid User ID
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* @param integer $zcid Global Contact ID
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* @param integer $url POCO address that should be polled
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function load($cid, $uid, $zcid, $url)
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{
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if ($cid) {
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if (!$url || !$uid) {
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$contact = DBA::selectFirst('contact', ['poco', 'uid'], ['id' => $cid]);
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if (DBA::isResult($contact)) {
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$url = $contact['poco'];
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$uid = $contact['uid'];
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}
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}
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if (!$uid) {
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return;
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}
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}
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if (!$url) {
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return;
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}
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$url = $url . (($uid) ? '/@me/@all?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,contactType,generation' : '?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,contactType,generation');
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Logger::log('load: ' . $url, Logger::DEBUG);
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$fetchresult = Network::fetchUrlFull($url);
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$s = $fetchresult->getBody();
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Logger::log('load: returns ' . $s, Logger::DATA);
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Logger::log('load: return code: ' . $fetchresult->getReturnCode(), Logger::DEBUG);
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if (($fetchresult->getReturnCode() > 299) || (! $s)) {
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return;
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}
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$j = json_decode($s, true);
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Logger::log('load: json: ' . print_r($j, true), Logger::DATA);
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if (!isset($j['entry'])) {
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return;
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}
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$total = 0;
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foreach ($j['entry'] as $entry) {
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$total ++;
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$profile_url = '';
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$profile_photo = '';
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$connect_url = '';
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$name = '';
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$network = '';
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$updated = DBA::NULL_DATETIME;
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$location = '';
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$about = '';
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$keywords = '';
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$contact_type = -1;
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$generation = 0;
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if (!empty($entry['displayName'])) {
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$name = $entry['displayName'];
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}
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if (isset($entry['urls'])) {
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foreach ($entry['urls'] as $url) {
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if ($url['type'] == 'profile') {
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$profile_url = $url['value'];
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continue;
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}
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if ($url['type'] == 'webfinger') {
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$connect_url = str_replace('acct:', '', $url['value']);
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continue;
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}
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}
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}
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if (isset($entry['photos'])) {
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foreach ($entry['photos'] as $photo) {
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if ($photo['type'] == 'profile') {
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$profile_photo = $photo['value'];
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continue;
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}
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}
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}
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if (isset($entry['updated'])) {
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$updated = date(DateTimeFormat::MYSQL, strtotime($entry['updated']));
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}
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if (isset($entry['network'])) {
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$network = $entry['network'];
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}
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if (isset($entry['currentLocation'])) {
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$location = $entry['currentLocation'];
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}
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if (isset($entry['aboutMe'])) {
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$about = HTML::toBBCode($entry['aboutMe']);
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}
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if (isset($entry['generation']) && ($entry['generation'] > 0)) {
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$generation = ++$entry['generation'];
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}
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if (isset($entry['tags'])) {
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foreach ($entry['tags'] as $tag) {
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$keywords = implode(", ", $tag);
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}
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}
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if (isset($entry['contactType']) && ($entry['contactType'] >= 0)) {
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$contact_type = $entry['contactType'];
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}
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$gcontact = ["url" => $profile_url,
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"name" => $name,
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"network" => $network,
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"photo" => $profile_photo,
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"about" => $about,
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"location" => $location,
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"keywords" => $keywords,
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"connect" => $connect_url,
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"updated" => $updated,
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"contact-type" => $contact_type,
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"generation" => $generation];
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try {
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$gcontact = GContact::sanitize($gcontact);
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$gcid = GContact::update($gcontact);
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GContact::link($gcid, $uid, $cid, $zcid);
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} catch (Exception $e) {
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Logger::log($e->getMessage(), Logger::DEBUG);
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}
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}
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Logger::log("load: loaded $total entries", Logger::DEBUG);
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$condition = ["`cid` = ? AND `uid` = ? AND `zcid` = ? AND `updated` < UTC_TIMESTAMP - INTERVAL 2 DAY", $cid, $uid, $zcid];
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DBA::delete('glink', $condition);
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}
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/**
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* Returns a list of all known servers
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* @return array List of server urls
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* @throws Exception
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*/
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public static function serverlist()
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{
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$r = q(
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"SELECT `url`, `site_name` AS `displayName`, `network`, `platform`, `version` FROM `gserver`
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WHERE `network` IN ('%s', '%s', '%s') AND `last_contact` > `last_failure`
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ORDER BY `last_contact`
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LIMIT 1000",
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DBA::escape(Protocol::DFRN),
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DBA::escape(Protocol::DIASPORA),
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DBA::escape(Protocol::OSTATUS)
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);
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if (!DBA::isResult($r)) {
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return false;
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}
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return $r;
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}
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/**
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* Fetch server list from remote servers and adds them when they are new.
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*
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* @param string $poco URL to the POCO endpoint
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function fetchServerlist($poco)
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{
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$curlResult = Network::curl($poco . "/@server");
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if (!$curlResult->isSuccess()) {
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return;
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}
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$serverlist = json_decode($curlResult->getBody(), true);
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if (!is_array($serverlist)) {
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return;
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}
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foreach ($serverlist as $server) {
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$server_url = str_replace("/index.php", "", $server['url']);
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$r = q("SELECT `nurl` FROM `gserver` WHERE `nurl` = '%s'", DBA::escape(Strings::normaliseLink($server_url)));
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if (!DBA::isResult($r)) {
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Logger::log("Call server check for server ".$server_url, Logger::DEBUG);
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Worker::add(PRIORITY_LOW, 'UpdateGServer', $server_url);
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}
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}
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}
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public static function discoverSingleServer($id)
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{
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$server = DBA::selectFirst('gserver', ['poco', 'nurl', 'url', 'network'], ['id' => $id]);
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if (!DBA::isResult($server)) {
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return false;
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}
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// Discover new servers out there (Works from Friendica version 3.5.2)
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self::fetchServerlist($server["poco"]);
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// Fetch all users from the other server
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$url = $server["poco"] . "/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,contactType,generation";
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Logger::info("Fetch all users from the server " . $server["url"]);
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$curlResult = Network::curl($url);
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if ($curlResult->isSuccess() && !empty($curlResult->getBody())) {
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$data = json_decode($curlResult->getBody(), true);
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if (!empty($data)) {
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self::discoverServer($data, 2);
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}
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if (DI::config()->get('system', 'poco_discovery') >= self::USERS_GCONTACTS) {
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$timeframe = DI::config()->get('system', 'poco_discovery_since');
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if ($timeframe == 0) {
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$timeframe = 30;
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}
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$updatedSince = date(DateTimeFormat::MYSQL, time() - $timeframe * 86400);
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// Fetch all global contacts from the other server (Not working with Redmatrix and Friendica versions before 3.3)
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$url = $server["poco"]."/@global?updatedSince=".$updatedSince."&fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,contactType,generation";
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$success = false;
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$curlResult = Network::curl($url);
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if ($curlResult->isSuccess() && !empty($curlResult->getBody())) {
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Logger::info("Fetch all global contacts from the server " . $server["nurl"]);
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$data = json_decode($curlResult->getBody(), true);
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if (!empty($data)) {
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$success = self::discoverServer($data);
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}
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}
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if (!$success && !empty($data) && DI::config()->get('system', 'poco_discovery') >= self::USERS_GCONTACTS_FALLBACK) {
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Logger::info("Fetch contacts from users of the server " . $server["nurl"]);
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self::discoverServerUsers($data, $server);
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}
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}
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$fields = ['last_poco_query' => DateTimeFormat::utcNow()];
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DBA::update('gserver', $fields, ['nurl' => $server["nurl"]]);
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return true;
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} else {
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// If the server hadn't replied correctly, then force a sanity check
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GServer::check($server["url"], $server["network"], true);
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// If we couldn't reach the server, we will try it some time later
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$fields = ['last_poco_query' => DateTimeFormat::utcNow()];
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DBA::update('gserver', $fields, ['nurl' => $server["nurl"]]);
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return false;
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}
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}
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private static function discoverServerUsers(array $data, array $server)
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{
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if (!isset($data['entry'])) {
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return;
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}
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foreach ($data['entry'] as $entry) {
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$username = '';
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if (isset($entry['urls'])) {
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foreach ($entry['urls'] as $url) {
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if ($url['type'] == 'profile') {
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$profile_url = $url['value'];
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$path_array = explode('/', parse_url($profile_url, PHP_URL_PATH));
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$username = end($path_array);
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}
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}
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}
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if ($username != '') {
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Logger::log('Fetch contacts for the user ' . $username . ' from the server ' . $server['nurl'], Logger::DEBUG);
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// Fetch all contacts from a given user from the other server
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$url = $server['poco'] . '/' . $username . '/?fields=displayName,urls,photos,updated,network,aboutMe,currentLocation,tags,contactType,generation';
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$curlResult = Network::curl($url);
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if ($curlResult->isSuccess()) {
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$data = json_decode($curlResult->getBody(), true);
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if (!empty($data)) {
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self::discoverServer($data, 3);
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}
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}
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}
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}
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}
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private static function discoverServer(array $data, $default_generation = 0)
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{
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if (empty($data['entry'])) {
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return false;
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}
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$success = false;
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foreach ($data['entry'] as $entry) {
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$profile_url = '';
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$profile_photo = '';
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$connect_url = '';
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$name = '';
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$network = '';
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$updated = DBA::NULL_DATETIME;
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$location = '';
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$about = '';
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$keywords = '';
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$contact_type = -1;
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$generation = $default_generation;
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if (!empty($entry['displayName'])) {
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$name = $entry['displayName'];
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}
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if (isset($entry['urls'])) {
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foreach ($entry['urls'] as $url) {
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if ($url['type'] == 'profile') {
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$profile_url = $url['value'];
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continue;
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}
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if ($url['type'] == 'webfinger') {
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$connect_url = str_replace('acct:' , '', $url['value']);
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continue;
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}
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}
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}
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if (isset($entry['photos'])) {
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foreach ($entry['photos'] as $photo) {
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if ($photo['type'] == 'profile') {
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$profile_photo = $photo['value'];
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continue;
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}
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}
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}
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if (isset($entry['updated'])) {
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$updated = date(DateTimeFormat::MYSQL, strtotime($entry['updated']));
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}
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if (isset($entry['network'])) {
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$network = $entry['network'];
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}
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if (isset($entry['currentLocation'])) {
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$location = $entry['currentLocation'];
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}
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if (isset($entry['aboutMe'])) {
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$about = HTML::toBBCode($entry['aboutMe']);
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}
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if (isset($entry['generation']) && ($entry['generation'] > 0)) {
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$generation = ++$entry['generation'];
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}
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if (isset($entry['contactType']) && ($entry['contactType'] >= 0)) {
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$contact_type = $entry['contactType'];
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}
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if (isset($entry['tags'])) {
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foreach ($entry['tags'] as $tag) {
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$keywords = implode(", ", $tag);
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}
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}
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if ($generation > 0) {
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$success = true;
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Logger::log("Store profile ".$profile_url, Logger::DEBUG);
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$gcontact = ["url" => $profile_url,
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"name" => $name,
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"network" => $network,
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"photo" => $profile_photo,
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"about" => $about,
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"location" => $location,
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"keywords" => $keywords,
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"connect" => $connect_url,
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"updated" => $updated,
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"contact-type" => $contact_type,
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"generation" => $generation];
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try {
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$gcontact = GContact::sanitize($gcontact);
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GContact::update($gcontact);
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} catch (Exception $e) {
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Logger::log($e->getMessage(), Logger::DEBUG);
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}
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Logger::log("Done for profile ".$profile_url, Logger::DEBUG);
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}
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}
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return $success;
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}
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}
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