friendica/src/Worker/UpdateServerPeers.php

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2020-08-01 07:55:27 +02:00
<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Worker;
use Friendica\Core\Logger;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Util\Strings;
class UpdateServerPeers
{
/**
* Query the given server for their known peers
* @param string $gserver Server URL
*/
public static function execute(string $url)
{
$ret = DI::httpRequest()->get($url . '/api/v1/instance/peers');
if (!$ret->isSuccess() || empty($ret->getBody())) {
Logger::info('Server is not reachable or does not offer the "peers" endpoint', ['url' => $url]);
return;
}
$peers = json_decode($ret->getBody());
if (empty($peers) || !is_array($peers)) {
Logger::info('Server does not have any peers listed', ['url' => $url]);
return;
}
Logger::info('Server peer update start', ['url' => $url]);
$total = 0;
$added = 0;
foreach ($peers as $peer) {
++$total;
if (DBA::exists('gserver', ['nurl' => Strings::normaliseLink('http://' . $peer)])) {
// We already know this server
continue;
}
// This endpoint doesn't offer the schema. So we assume that it is HTTPS.
Worker::add(PRIORITY_LOW, 'UpdateGServer', 'https://' . $peer);
++$added;
}
Logger::info('Server peer update ended', ['total' => $total, 'added' => $added, 'url' => $url]);
}
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/**
* Fetch server list from remote servers and adds them when they are new.
*
* @param string $poco URL to the POCO endpoint
*/
private static function fetchServerlist($poco)
{
$curlResult = DI::httpRequest()->get($poco . '/@server');
if (!$curlResult->isSuccess()) {
Logger::info('Server is not reachable or does not offer the "poco" endpoint', ['poco' => $poco]);
return;
}
$serverlist = json_decode($curlResult->getBody(), true);
if (!is_array($serverlist)) {
Logger::info('Server does not have any servers listed', ['poco' => $poco]);
return;
}
Logger::info('PoCo Server update start', ['poco' => $poco]);
$total = 0;
$added = 0;
foreach ($serverlist as $server) {
++$total;
if (DBA::exists('gserver', ['nurl' => Strings::normaliseLink($server['url'])])) {
// We already know this server
continue;
}
// This endpoint doesn't offer the schema. So we assume that it is HTTPS.
Worker::add(PRIORITY_LOW, 'UpdateGServer', $server['url']);
++$added;
}
Logger::info('PoCo Server update ended', ['total' => $total, 'added' => $added, 'poco' => $poco]);
}
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}