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server/lib/private/updater.php
Vincent Petry 22bc37cb82 Properly forward repair errors and warnings 
This makes repair errors and warnings visible for the user when
upgrading on the command line or in the web UI.
2015-02-27 12:44:04 +01:00

394 lines
11 KiB
PHP
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<?php
/**
* 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.
*/
namespace OC;
use OC\Hooks\BasicEmitter;
use OC_App;
use OC_Util;
use OCP\IConfig;
/**
* Class that handles autoupdating of ownCloud
*
* Hooks provided in scope \OC\Updater
* - maintenanceStart()
* - maintenanceEnd()
* - dbUpgrade()
* - failure(string $message)
*/
class Updater extends BasicEmitter {
/** @var \OC\Log $log */
private $log;
/** @var \OC\HTTPHelper $helper */
private $httpHelper;
/** @var IConfig */
private $config;
/** @var bool */
private $simulateStepEnabled;
/** @var bool */
private $updateStepEnabled;
/**
* @param HTTPHelper $httpHelper
* @param IConfig $config
* @param \OC\Log $log
*/
public function __construct(HTTPHelper $httpHelper, IConfig $config, $log = null) {
$this->httpHelper = $httpHelper;
$this->log = $log;
$this->config = $config;
$this->simulateStepEnabled = true;
$this->updateStepEnabled = true;
}
/**
* Sets whether the database migration simulation must
* be enabled.
* This can be set to false to skip this test.
*
* @param bool $flag true to enable simulation, false otherwise
*/
public function setSimulateStepEnabled($flag) {
$this->simulateStepEnabled = $flag;
}
/**
* Sets whether the update must be performed.
* This can be set to false to skip the actual update.
*
* @param bool $flag true to enable update, false otherwise
*/
public function setUpdateStepEnabled($flag) {
$this->updateStepEnabled = $flag;
}
/**
* Check if a new version is available
*
* @param string $updaterUrl the url to check, i.e. 'http://apps.owncloud.com/updater.php'
* @return array|bool
*/
public function check($updaterUrl = null) {
// Look up the cache - it is invalidated all 30 minutes
if (((int)$this->config->getAppValue('core', 'lastupdatedat') + 1800) > time()) {
return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
}
if (is_null($updaterUrl)) {
$updaterUrl = 'https://apps.owncloud.com/updater.php';
}
$this->config->setAppValue('core', 'lastupdatedat', time());
if ($this->config->getAppValue('core', 'installedat', '') == '') {
$this->config->setAppValue('core', 'installedat', microtime(true));
}
$version = \OC_Util::getVersion();
$version['installed'] = $this->config->getAppValue('core', 'installedat');
$version['updated'] = $this->config->getAppValue('core', 'lastupdatedat');
$version['updatechannel'] = \OC_Util::getChannel();
$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.
$tmp = array();
$xml = $this->httpHelper->getUrlContent($url);
if ($xml) {
$loadEntities = libxml_disable_entity_loader(true);
$data = @simplexml_load_string($xml);
libxml_disable_entity_loader($loadEntities);
if ($data !== false) {
$tmp['version'] = $data->version;
$tmp['versionstring'] = $data->versionstring;
$tmp['url'] = $data->url;
$tmp['web'] = $data->web;
}
} else {
$data = array();
}
// Cache the result
$this->config->setAppValue('core', 'lastupdateResult', json_encode($data));
return $tmp;
}
/**
* runs the update actions in maintenance mode, does not upgrade the source files
* except the main .htaccess file
*
* @return bool true if the operation succeeded, false otherwise
*/
public function upgrade() {
$this->config->setSystemValue('maintenance', true);
$installedVersion = $this->config->getSystemValue('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');
try {
$this->doUpgrade($currentVersion, $installedVersion);
} catch (\Exception $exception) {
$this->emit('\OC\Updater', 'failure', array($exception->getMessage()));
}
$this->config->setSystemValue('maintenance', false);
$this->emit('\OC\Updater', 'maintenanceEnd');
}
/**
* Whether an upgrade to a specified version is possible
* @param string $oldVersion
* @param string $newVersion
* @return bool
*/
public function isUpgradePossible($oldVersion, $newVersion) {
$oldVersion = explode('.', $oldVersion);
$newVersion = explode('.', $newVersion);
if($newVersion[0] > ($oldVersion[0] + 1) || $oldVersion[0] > $newVersion[0]) {
return false;
}
return true;
}
/**
* Forward messages emitted by the repair routine
*
* @param Repair $repair repair routine
*/
private function emitRepairMessages(Repair $repair) {
$repair->listen('\OC\Repair', 'warning', function ($description) {
$this->emit('\OC\Updater', 'repairWarning', array($description));
});
$repair->listen('\OC\Repair', 'error', function ($description) {
$this->emit('\OC\Updater', 'repairError', array($description));
});
}
/**
* runs the update actions in maintenance mode, does not upgrade the source files
* except the main .htaccess file
*
* @param string $currentVersion current version to upgrade to
* @param string $installedVersion previous version from which to upgrade from
*
* @throws \Exception
* @return bool true if the operation succeeded, false otherwise
*/
private function doUpgrade($currentVersion, $installedVersion) {
// Stop update if the update is over several major versions
if (!self::isUpgradePossible($installedVersion, $currentVersion)) {
throw new \Exception('Updates between multiple major versions are unsupported.');
}
// Update htaccess files for apache hosts
if (isset($_SERVER['SERVER_SOFTWARE']) && strstr($_SERVER['SERVER_SOFTWARE'], 'Apache')) {
try {
\OC\Setup::updateHtaccess();
} catch (\Exception $e) {
throw new \Exception($e->getMessage());
}
}
// 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($this->config->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data') . '/.ocdata', '');
// pre-upgrade repairs
$repair = new Repair(Repair::getBeforeUpgradeRepairSteps());
$this->emitRepairMessages($repair);
$repair->run();
// simulate DB upgrade
if ($this->simulateStepEnabled) {
$this->checkCoreUpgrade();
// simulate apps DB upgrade
$this->checkAppUpgrade($currentVersion);
}
if ($this->updateStepEnabled) {
$this->doCoreUpgrade();
$this->checkAppsRequirements();
$this->doAppUpgrade();
// post-upgrade repairs
$repair = new Repair(Repair::getRepairSteps());
$this->emitRepairMessages($repair);
$repair->run();
//Invalidate update feed
$this->config->setAppValue('core', 'lastupdatedat', 0);
// only set the final version if everything went well
$this->config->setSystemValue('version', implode('.', \OC_Util::getVersion()));
}
}
protected function checkCoreUpgrade() {
// simulate core DB upgrade
\OC_DB::simulateUpdateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
$this->emit('\OC\Updater', 'dbSimulateUpgrade');
}
protected function doCoreUpgrade() {
// do the real upgrade
\OC_DB::updateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
$this->emit('\OC\Updater', 'dbUpgrade');
}
/**
* @param string $version the oc version to check app compatibility with
*/
protected function checkAppUpgrade($version) {
$apps = \OC_App::getEnabledApps();
foreach ($apps as $appId) {
$info = \OC_App::getAppInfo($appId);
$compatible = \OC_App::isAppCompatible($version, $info);
$isShipped = \OC_App::isShipped($appId);
if ($compatible && $isShipped && \OC_App::shouldUpgrade($appId)) {
/**
* FIXME: The preupdate check is performed before the database migration, otherwise database changes
* are not possible anymore within it. - Consider this when touching the code.
* @link https://github.com/owncloud/core/issues/10980
* @see \OC_App::updateApp
*/
if (file_exists(\OC_App::getAppPath($appId) . '/appinfo/preupdate.php')) {
$this->includePreUpdate($appId);
}
if (file_exists(\OC_App::getAppPath($appId) . '/appinfo/database.xml')) {
\OC_DB::simulateUpdateDbFromStructure(\OC_App::getAppPath($appId) . '/appinfo/database.xml');
}
}
}
$this->emit('\OC\Updater', 'appUpgradeCheck');
}
/**
* Includes the pre-update file. Done here to prevent namespace mixups.
* @param string $appId
*/
private function includePreUpdate($appId) {
include \OC_App::getAppPath($appId) . '/appinfo/preupdate.php';
}
/**
* upgrades all apps within a major ownCloud upgrade. Also loads "priority"
* (types authentication, filesystem, logging, in that order) afterwards.
*
* @throws NeedsUpdateException
*/
protected function doAppUpgrade() {
$apps = \OC_App::getEnabledApps();
$priorityTypes = array('authentication', 'filesystem', 'logging');
$pseudoOtherType = 'other';
$stacks = array($pseudoOtherType => array());
foreach ($apps as $appId) {
$priorityType = false;
foreach ($priorityTypes as $type) {
if(!isset($stacks[$type])) {
$stacks[$type] = array();
}
if (\OC_App::isType($appId, $type)) {
$stacks[$type][] = $appId;
$priorityType = true;
break;
}
}
if (!$priorityType) {
$stacks[$pseudoOtherType][] = $appId;
}
}
foreach ($stacks as $type => $stack) {
foreach ($stack as $appId) {
if (\OC_App::shouldUpgrade($appId)) {
\OC_App::updateApp($appId);
$this->emit('\OC\Updater', 'appUpgrade', array($appId, \OC_App::getAppVersion($appId)));
}
if($type !== $pseudoOtherType) {
// load authentication, filesystem and logging apps after
// upgrading them. Other apps my need to rely on modifying
// user and/or filesystem aspects.
\OC_App::loadApp($appId, false);
}
}
}
}
/**
* check if the current enabled apps are compatible with the current
* ownCloud version. disable them if not.
* This is important if you upgrade ownCloud and have non ported 3rd
* party apps installed.
*/
private function checkAppsRequirements() {
$isCoreUpgrade = $this->isCodeUpgrade();
$apps = OC_App::getEnabledApps();
$version = OC_Util::getVersion();
foreach ($apps as $app) {
// check if the app is compatible with this version of ownCloud
$info = OC_App::getAppInfo($app);
if(!OC_App::isAppCompatible($version, $info)) {
OC_App::disable($app);
$this->emit('\OC\Updater', 'incompatibleAppDisabled', array($app));
}
// no need to disable any app in case this is a non-core upgrade
if (!$isCoreUpgrade) {
continue;
}
// shipped apps will remain enabled
if (OC_App::isShipped($app)) {
continue;
}
// authentication and session apps will remain enabled as well
if (OC_App::isType($app, ['session', 'authentication'])) {
continue;
}
// disable any other 3rd party apps
\OC_App::disable($app);
$this->emit('\OC\Updater', 'thirdPartyAppDisabled', array($app));
}
}
private function isCodeUpgrade() {
$installedVersion = $this->config->getSystemValue('version', '0.0.0');
$currentVersion = implode('.', OC_Util::getVersion());
if (version_compare($currentVersion, $installedVersion, '>')) {
return true;
}
return false;
}
}
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