nextcloud/lib/private/Updater/VersionCheck.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Joas Schilling <coding@schilljs.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Updater;
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use OCP\Http\Client\IClientService;
use OCP\IConfig;
use OCP\Util;
class VersionCheck {
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/** @var IClientService */
private $clientService;
/** @var IConfig */
private $config;
/**
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* @param IClientService $clientService
* @param IConfig $config
*/
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public function __construct(IClientService $clientService,
IConfig $config) {
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$this->clientService = $clientService;
$this->config = $config;
}
/**
* Check if a new version is available
*
* @return array|bool
*/
public function check() {
// Look up the cache - it is invalidated all 30 minutes
if (false && ((int)$this->config->getAppValue('core', 'lastupdatedat') + 1800) > time()) {
return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
}
$updaterUrl = $this->config->getSystemValue('updater.server.url', 'https://updates.nextcloud.com/updater_server/');
$this->config->setAppValue('core', 'lastupdatedat', time());
if ($this->config->getAppValue('core', 'installedat', '') === '') {
$this->config->setAppValue('core', 'installedat', microtime(true));
}
$version = Util::getVersion();
$version['installed'] = $this->config->getAppValue('core', 'installedat');
$version['updated'] = $this->config->getAppValue('core', 'lastupdatedat');
$version['updatechannel'] = 'stable'; //\OC_Util::getChannel();
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$version['edition'] = '';
$version['build'] = \OC_Util::getBuild();
$version['php_major'] = PHP_MAJOR_VERSION;
$version['php_minor'] = PHP_MINOR_VERSION;
$version['php_release'] = PHP_RELEASE_VERSION;
$versionString = implode('x', $version);
//fetch xml data from updater
$url = $updaterUrl . '?version=' . $versionString;
$tmp = [];
try {
$xml = $this->getUrlContent($url);
} catch (\Exception $e) {
return false;
}
if ($xml) {
$loadEntities = libxml_disable_entity_loader(true);
$data = @simplexml_load_string($xml);
libxml_disable_entity_loader($loadEntities);
if ($data !== false) {
$tmp['version'] = (string)$data->version;
$tmp['versionstring'] = (string)$data->versionstring;
$tmp['url'] = (string)$data->url;
$tmp['web'] = (string)$data->web;
$tmp['changelog'] = isset($data->changelog) ? (string)$data->changelog : '';
// TODO: one's it is decided, use the proper field…
$tmp['whatsNew'] = isset($data->whatsNew) ? ((array)$data->whatsNew)['item'] : null;
$tmp['whatsNew'] = isset($data->whatsNew_admin) ? ((array)$data->whatsNew_admin)['item'] : (string)$data->whatsNew;
$tmp['autoupdater'] = (string)$data->autoupdater;
$tmp['eol'] = isset($data->eol) ? (string)$data->eol : '0';
} else {
libxml_clear_errors();
}
}
// Cache the result
$this->config->setAppValue('core', 'lastupdateResult', json_encode($tmp));
return $tmp;
}
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/**
* @codeCoverageIgnore
* @param string $url
* @return resource|string
* @throws \Exception
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*/
protected function getUrlContent($url) {
$client = $this->clientService->newClient();
$response = $client->get($url);
return $response->getBody();
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}
}