friendica/src/Worker/UpdateServerPeers.php

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<?php
/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
* @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\Database\DBA;
use Friendica\DI;
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use Friendica\Model\GServer;
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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)
{
$ret = DI::httpClient()->get($url . '/api/v1/instance/peers');
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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.
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GServer::add('https://' . $peer);
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++$added;
}
Logger::info('Server peer update ended', ['total' => $total, 'added' => $added, 'url' => $url]);
}
}