439 lines
13 KiB
PHP
439 lines
13 KiB
PHP
<?php
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/**
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* @author Arthur Schiwon <blizzz@owncloud.com>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <schiessle@owncloud.com>
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* @author Frank Karlitschek <frank@owncloud.org>
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* @author Lukas Reschke <lukas@owncloud.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <icewind@owncloud.com>
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* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Victor Dubiniuk <dubiniuk@owncloud.com>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC;
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use OC\Hooks\BasicEmitter;
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use OC_App;
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use OC_Installer;
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use OC_Util;
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use OCP\IConfig;
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use OC\Setup;
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use OCP\ILogger;
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/**
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* Class that handles autoupdating of ownCloud
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*
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* Hooks provided in scope \OC\Updater
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* - maintenanceStart()
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* - maintenanceEnd()
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* - dbUpgrade()
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* - failure(string $message)
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*/
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class Updater extends BasicEmitter {
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/** @var ILogger $log */
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private $log;
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/** @var \OC\HTTPHelper $helper */
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private $httpHelper;
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/** @var IConfig */
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private $config;
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/** @var bool */
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private $simulateStepEnabled;
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/** @var bool */
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private $updateStepEnabled;
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/**
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* @param HTTPHelper $httpHelper
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* @param IConfig $config
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* @param ILogger $log
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*/
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public function __construct(HTTPHelper $httpHelper, IConfig $config, ILogger $log = null) {
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$this->httpHelper = $httpHelper;
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$this->log = $log;
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$this->config = $config;
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$this->simulateStepEnabled = true;
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$this->updateStepEnabled = true;
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}
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/**
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* Sets whether the database migration simulation must
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* be enabled.
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* This can be set to false to skip this test.
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*
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* @param bool $flag true to enable simulation, false otherwise
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*/
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public function setSimulateStepEnabled($flag) {
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$this->simulateStepEnabled = $flag;
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}
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/**
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* Sets whether the update must be performed.
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* This can be set to false to skip the actual update.
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*
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* @param bool $flag true to enable update, false otherwise
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*/
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public function setUpdateStepEnabled($flag) {
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$this->updateStepEnabled = $flag;
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}
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/**
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* Check if a new version is available
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*
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* @param string $updaterUrl the url to check, i.e. 'http://apps.owncloud.com/updater.php'
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* @return array|bool
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*/
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public function check($updaterUrl = null) {
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// Look up the cache - it is invalidated all 30 minutes
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if (((int)$this->config->getAppValue('core', 'lastupdatedat') + 1800) > time()) {
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return json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
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}
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if (is_null($updaterUrl)) {
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$updaterUrl = 'https://apps.owncloud.com/updater.php';
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}
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$this->config->setAppValue('core', 'lastupdatedat', time());
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if ($this->config->getAppValue('core', 'installedat', '') == '') {
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$this->config->setAppValue('core', 'installedat', microtime(true));
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}
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$version = \OC_Util::getVersion();
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$version['installed'] = $this->config->getAppValue('core', 'installedat');
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$version['updated'] = $this->config->getAppValue('core', 'lastupdatedat');
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$version['updatechannel'] = \OC_Util::getChannel();
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$version['edition'] = \OC_Util::getEditionString();
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$version['build'] = \OC_Util::getBuild();
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$versionString = implode('x', $version);
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//fetch xml data from updater
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$url = $updaterUrl . '?version=' . $versionString;
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// set a sensible timeout of 10 sec to stay responsive even if the update server is down.
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$tmp = array();
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$xml = $this->httpHelper->getUrlContent($url);
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if ($xml) {
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$loadEntities = libxml_disable_entity_loader(true);
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$data = @simplexml_load_string($xml);
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libxml_disable_entity_loader($loadEntities);
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if ($data !== false) {
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$tmp['version'] = $data->version;
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$tmp['versionstring'] = $data->versionstring;
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$tmp['url'] = $data->url;
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$tmp['web'] = $data->web;
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}
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} else {
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$data = array();
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}
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// Cache the result
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$this->config->setAppValue('core', 'lastupdateResult', json_encode($data));
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return $tmp;
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}
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/**
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* runs the update actions in maintenance mode, does not upgrade the source files
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* except the main .htaccess file
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*
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* @return bool true if the operation succeeded, false otherwise
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*/
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public function upgrade() {
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$this->config->setSystemValue('maintenance', true);
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$installedVersion = $this->config->getSystemValue('version', '0.0.0');
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$currentVersion = implode('.', \OC_Util::getVersion());
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if ($this->log) {
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$this->log->debug('starting upgrade from ' . $installedVersion . ' to ' . $currentVersion, array('app' => 'core'));
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}
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$this->emit('\OC\Updater', 'maintenanceStart');
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try {
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$this->doUpgrade($currentVersion, $installedVersion);
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} catch (\Exception $exception) {
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$this->emit('\OC\Updater', 'failure', array($exception->getMessage()));
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}
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$this->config->setSystemValue('maintenance', false);
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$this->emit('\OC\Updater', 'maintenanceEnd');
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}
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/**
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* Whether an upgrade to a specified version is possible
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* @param string $oldVersion
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* @param string $newVersion
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* @return bool
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*/
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public function isUpgradePossible($oldVersion, $newVersion) {
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$oldVersion = explode('.', $oldVersion);
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$newVersion = explode('.', $newVersion);
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if($newVersion[0] > ($oldVersion[0] + 1) || $oldVersion[0] > $newVersion[0]) {
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return false;
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}
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return true;
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}
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/**
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* Forward messages emitted by the repair routine
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*
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* @param Repair $repair repair routine
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*/
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private function emitRepairMessages(Repair $repair) {
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$repair->listen('\OC\Repair', 'warning', function ($description) {
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$this->emit('\OC\Updater', 'repairWarning', array($description));
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});
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$repair->listen('\OC\Repair', 'error', function ($description) {
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$this->emit('\OC\Updater', 'repairError', array($description));
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});
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}
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/**
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* runs the update actions in maintenance mode, does not upgrade the source files
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* except the main .htaccess file
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*
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* @param string $currentVersion current version to upgrade to
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* @param string $installedVersion previous version from which to upgrade from
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*
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* @throws \Exception
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* @return bool true if the operation succeeded, false otherwise
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*/
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private function doUpgrade($currentVersion, $installedVersion) {
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// Stop update if the update is over several major versions
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if (!self::isUpgradePossible($installedVersion, $currentVersion)) {
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throw new \Exception('Updates between multiple major versions are unsupported.');
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}
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// Update .htaccess files
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try {
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Setup::updateHtaccess();
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Setup::protectDataDirectory();
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} catch (\Exception $e) {
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throw new \Exception($e->getMessage());
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}
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// create empty file in data dir, so we can later find
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// out that this is indeed an ownCloud data directory
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// (in case it didn't exist before)
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file_put_contents($this->config->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data') . '/.ocdata', '');
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// pre-upgrade repairs
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$repair = new Repair(Repair::getBeforeUpgradeRepairSteps());
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$this->emitRepairMessages($repair);
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$repair->run();
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// simulate DB upgrade
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if ($this->simulateStepEnabled) {
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$this->checkCoreUpgrade();
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// simulate apps DB upgrade
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$this->checkAppUpgrade($currentVersion);
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}
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if ($this->updateStepEnabled) {
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$this->doCoreUpgrade();
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// update all shipped apps
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$disabledApps = $this->checkAppsRequirements();
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$this->doAppUpgrade();
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// upgrade appstore apps
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$this->upgradeAppStoreApps($disabledApps);
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// post-upgrade repairs
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$repair = new Repair(Repair::getRepairSteps());
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$this->emitRepairMessages($repair);
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$repair->run();
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//Invalidate update feed
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$this->config->setAppValue('core', 'lastupdatedat', 0);
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// only set the final version if everything went well
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$this->config->setSystemValue('version', implode('.', \OC_Util::getVersion()));
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}
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}
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protected function checkCoreUpgrade() {
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// simulate core DB upgrade
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\OC_DB::simulateUpdateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
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$this->emit('\OC\Updater', 'dbSimulateUpgrade');
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}
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protected function doCoreUpgrade() {
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// do the real upgrade
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\OC_DB::updateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
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$this->emit('\OC\Updater', 'dbUpgrade');
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}
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/**
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* @param string $version the oc version to check app compatibility with
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*/
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protected function checkAppUpgrade($version) {
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$apps = \OC_App::getEnabledApps();
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foreach ($apps as $appId) {
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$info = \OC_App::getAppInfo($appId);
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$compatible = \OC_App::isAppCompatible($version, $info);
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$isShipped = \OC_App::isShipped($appId);
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if ($compatible && $isShipped && \OC_App::shouldUpgrade($appId)) {
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/**
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* FIXME: The preupdate check is performed before the database migration, otherwise database changes
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* are not possible anymore within it. - Consider this when touching the code.
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* @link https://github.com/owncloud/core/issues/10980
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* @see \OC_App::updateApp
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*/
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if (file_exists(\OC_App::getAppPath($appId) . '/appinfo/preupdate.php')) {
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$this->includePreUpdate($appId);
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}
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if (file_exists(\OC_App::getAppPath($appId) . '/appinfo/database.xml')) {
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\OC_DB::simulateUpdateDbFromStructure(\OC_App::getAppPath($appId) . '/appinfo/database.xml');
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}
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}
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}
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$this->emit('\OC\Updater', 'appUpgradeCheck');
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}
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/**
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* Includes the pre-update file. Done here to prevent namespace mixups.
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* @param string $appId
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*/
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private function includePreUpdate($appId) {
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include \OC_App::getAppPath($appId) . '/appinfo/preupdate.php';
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}
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/**
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* upgrades all apps within a major ownCloud upgrade. Also loads "priority"
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* (types authentication, filesystem, logging, in that order) afterwards.
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*
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* @throws NeedsUpdateException
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*/
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protected function doAppUpgrade() {
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$apps = \OC_App::getEnabledApps();
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$priorityTypes = array('authentication', 'filesystem', 'logging');
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$pseudoOtherType = 'other';
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$stacks = array($pseudoOtherType => array());
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foreach ($apps as $appId) {
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$priorityType = false;
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foreach ($priorityTypes as $type) {
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if(!isset($stacks[$type])) {
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$stacks[$type] = array();
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}
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if (\OC_App::isType($appId, $type)) {
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$stacks[$type][] = $appId;
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$priorityType = true;
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break;
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}
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}
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if (!$priorityType) {
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$stacks[$pseudoOtherType][] = $appId;
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}
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}
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foreach ($stacks as $type => $stack) {
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foreach ($stack as $appId) {
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if (\OC_App::shouldUpgrade($appId)) {
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\OC_App::updateApp($appId);
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$this->emit('\OC\Updater', 'appUpgrade', array($appId, \OC_App::getAppVersion($appId)));
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}
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if($type !== $pseudoOtherType) {
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// load authentication, filesystem and logging apps after
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// upgrading them. Other apps my need to rely on modifying
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// user and/or filesystem aspects.
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\OC_App::loadApp($appId, false);
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}
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}
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}
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}
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/**
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* check if the current enabled apps are compatible with the current
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* ownCloud version. disable them if not.
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* This is important if you upgrade ownCloud and have non ported 3rd
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* party apps installed.
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*/
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private function checkAppsRequirements() {
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$isCoreUpgrade = $this->isCodeUpgrade();
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$apps = OC_App::getEnabledApps();
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$version = OC_Util::getVersion();
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$disabledApps = [];
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foreach ($apps as $app) {
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// check if the app is compatible with this version of ownCloud
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$info = OC_App::getAppInfo($app);
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if(!OC_App::isAppCompatible($version, $info)) {
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OC_App::disable($app);
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$this->emit('\OC\Updater', 'incompatibleAppDisabled', array($app));
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}
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// no need to disable any app in case this is a non-core upgrade
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if (!$isCoreUpgrade) {
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continue;
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}
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// shipped apps will remain enabled
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if (OC_App::isShipped($app)) {
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continue;
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}
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// authentication and session apps will remain enabled as well
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if (OC_App::isType($app, ['session', 'authentication'])) {
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continue;
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}
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// disable any other 3rd party apps
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\OC_App::disable($app);
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$disabledApps[]= $app;
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$this->emit('\OC\Updater', 'thirdPartyAppDisabled', array($app));
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}
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return $disabledApps;
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}
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private function isCodeUpgrade() {
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$installedVersion = $this->config->getSystemValue('version', '0.0.0');
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$currentVersion = implode('.', OC_Util::getVersion());
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if (version_compare($currentVersion, $installedVersion, '>')) {
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return true;
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}
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return false;
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}
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private function upgradeAppStoreApps($disabledApps) {
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foreach($disabledApps as $app) {
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if (OC_Installer::isUpdateAvailable($app)) {
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$ocsId = \OC::$server->getConfig()->getAppValue($app, 'ocsid', '');
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$this->emit('\OC\Updater', 'upgradeAppStoreApp', array($app));
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OC_Installer::updateAppByOCSId($ocsId);
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}
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}
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}
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}
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