nextcloud/lib/private/updater.php

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<?php
/**
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* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
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namespace OC;
use OC\Hooks\BasicEmitter;
/**
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* Class that handles autoupdating of ownCloud
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*
* Hooks provided in scope \OC\Updater
* - maintenanceStart()
* - maintenanceEnd()
* - dbUpgrade()
* - failure(string $message)
*/
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class Updater extends BasicEmitter {
/**
* @var \OC\Log $log
*/
private $log;
/**
* @param \OC\Log $log
*/
public function __construct($log = null) {
$this->log = $log;
}
/**
* Check if a new version is available
* @param string $updaterUrl the url to check, i.e. 'http://apps.owncloud.com/updater.php'
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* @return array | bool
*/
public function check($updaterUrl) {
// Look up the cache - it is invalidated all 30 minutes
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if ((\OC_Appconfig::getValue('core', 'lastupdatedat') + 1800) > time()) {
return json_decode(\OC_Appconfig::getValue('core', 'lastupdateResult'), true);
}
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\OC_Appconfig::setValue('core', 'lastupdatedat', time());
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if (\OC_Appconfig::getValue('core', 'installedat', '') == '') {
\OC_Appconfig::setValue('core', 'installedat', microtime(true));
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}
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$version = \OC_Util::getVersion();
$version['installed'] = \OC_Appconfig::getValue('core', 'installedat');
$version['updated'] = \OC_Appconfig::getValue('core', 'lastupdatedat');
$version['updatechannel'] = \OC_Util::getChannel();
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$version['edition'] = \OC_Util::getEditionString();
$version['build'] = \OC_Util::getBuild();
$versionString = implode('x', $version);
//fetch xml data from updater
$url = $updaterUrl . '?version=' . $versionString;
// set a sensible timeout of 10 sec to stay responsive even if the update server is down.
$ctx = stream_context_create(
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array(
'http' => array(
'timeout' => 10
)
)
);
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$xml = @file_get_contents($url, 0, $ctx);
if ($xml == false) {
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return array();
}
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$loadEntities = libxml_disable_entity_loader(true);
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$data = @simplexml_load_string($xml);
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libxml_disable_entity_loader($loadEntities);
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$tmp = array();
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$tmp['version'] = $data->version;
$tmp['versionstring'] = $data->versionstring;
$tmp['url'] = $data->url;
$tmp['web'] = $data->web;
// Cache the result
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\OC_Appconfig::setValue('core', 'lastupdateResult', json_encode($data));
return $tmp;
}
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/**
* runs the update actions in maintenance mode, does not upgrade the source files
*/
public function upgrade() {
\OC_DB::enableCaching(false);
\OC_Config::setValue('maintenance', true);
$installedVersion = \OC_Config::getValue('version', '0.0.0');
$currentVersion = implode('.', \OC_Util::getVersion());
if ($this->log) {
$this->log->debug('starting upgrade from ' . $installedVersion . ' to ' . $currentVersion, array('app' => 'core'));
}
$this->emit('\OC\Updater', 'maintenanceStart');
// create empty file in data dir, so we can later find
// out that this is indeed an ownCloud data directory
// (in case it didn't exist before)
file_put_contents(\OC_Config::getValue('datadirectory', \OC::$SERVERROOT.'/data').'/.ocdata', '');
/*
* START CONFIG CHANGES FOR OLDER VERSIONS
*/
if (!\OC::$CLI && version_compare($installedVersion, '6.90.1', '<')) {
// Add the overwriteHost config if it is not existant
// This is added to prevent host header poisoning
\OC_Config::setValue('trusted_domains', \OC_Config::getValue('trusted_domains', array(\OC_Request::serverHost())));
}
/*
* STOP CONFIG CHANGES FOR OLDER VERSIONS
*/
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try {
\OC_DB::updateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
$this->emit('\OC\Updater', 'dbUpgrade');
} catch (\Exception $exception) {
$this->emit('\OC\Updater', 'failure', array($exception->getMessage()));
}
\OC_Config::setValue('version', implode('.', \OC_Util::getVersion()));
\OC_App::checkAppsRequirements();
// load all apps to also upgrade enabled apps
\OC_App::loadApps();
$repair = new Repair();
$repair->run();
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//Invalidate update feed
\OC_Appconfig::setValue('core', 'lastupdatedat', 0);
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\OC_Config::setValue('maintenance', false);
$this->emit('\OC\Updater', 'maintenanceEnd');
}
}