backport: split upgrade logic from ajax file

Conflicts:
	core/ajax/update.php
	lib/updater.php

1 files changed, 111 insertions, 60 deletions

diff --git a/lib/updater.php b/lib/updater.php
index e7d33ac2bb9..b0bc026167b 100644
--- a/lib/updater.php
+++ b/lib/updater.php
@@ -1,49 +1,63 @@
 <?php
 /**
- * ownCloud
- *
- * @author Frank Karlitschek
- * @copyright 2012 Frank Karlitschek frank@owncloud.org
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or any later version.
- *
- * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
- *
+ * 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;
+
 /**
  * Class that handels autoupdating of ownCloud
+ *
+ * Hooks provided in scope \OC\Updater
+ *  - maintenanceStart()
+ *  - maintenanceEnd()
+ *  - dbUpgrade()
+ *  - filecacheStart()
+ *  - filecacheProgress(int $percentage)
+ *  - filecacheDone()
+ *  - failure(string $message)
  */
-class OC_Updater{
+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
+	 * @return array | bool
 	 */
-	public static function check() {
+	public function check() {
 		OC_Appconfig::setValue('core', 'lastupdatedat', microtime(true));
-		if(OC_Appconfig::getValue('core', 'installedat', '')=='') {
-			OC_Appconfig::setValue('core', 'installedat', microtime(true));
+		if ((\OC_Appconfig::getValue('core', 'lastupdatedat') + 1800) > time()) {
+			return json_decode(\OC_Appconfig::getValue('core', 'lastupdateResult'), true);
+		\OC_Appconfig::setValue('core', 'lastupdatedat', time());
+		if (\OC_Appconfig::getValue('core', 'installedat', '') == '') {
+			\OC_Appconfig::setValue('core', 'installedat', microtime(true));
 		}
 
-		$updaterurl='http://apps.owncloud.com/updater.php';
-		$version=OC_Util::getVersion();
-		$version['installed']=OC_Appconfig::getValue('core', 'installedat');
-		$version['updated']=OC_Appconfig::getValue('core', 'lastupdatedat');
-		$version['updatechannel']='stable';
-		$version['edition']=OC_Util::getEditionString();
-		$versionstring=implode('x', $version);
+		$updaterurl = 'http://apps.owncloud.com/updater.php';
+		$version = \OC_Util::getVersion();
+		$version['installed'] = \OC_Appconfig::getValue('core', 'installedat');
+		$version['updated'] = \OC_Appconfig::getValue('core', 'lastupdatedat');
+		$version['updatechannel'] = 'stable';
+		$version['edition'] = \OC_Util::getEditionString();
+		$versionstring = implode('x', $version);
 
 		//fetch xml data from updater
-		$url=$updaterurl.'?version='.$versionstring;
+		$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(
@@ -53,50 +67,87 @@ class OC_Updater{
 				)
 			)
 		);
-		$xml=@file_get_contents($url, 0, $ctx);
-		if($xml==false) {
+		$xml = @file_get_contents($url, 0, $ctx);
+		if ($xml == false) {
 			return array();
 		}
-		$data=@simplexml_load_string($xml);
+		$data = @simplexml_load_string($xml);
 
-		$tmp=array();
+		$tmp = array();
 		$tmp['version'] = $data->version;
 		$tmp['versionstring'] = $data->versionstring;
 		$tmp['url'] = $data->url;
 		$tmp['web'] = $data->web;
 
+		\OC_Appconfig::setValue('core', 'lastupdateResult', json_encode($data));
 		return $tmp;
 	}
 
-	public static function ShowUpdatingHint() {
-		$l = OC_L10N::get('lib');
-
-		if(OC_Config::getValue('updatechecker', true)==true) {
-			$data=OC_Updater::check();
-			if(isset($data['version']) and $data['version']<>'') {
-				$txt='<span style="color:#AA0000; font-weight:bold;">'
-					.$l->t('%s is available. Get <a href="%s">more information</a>',
-					array($data['versionstring'], $data['web'])).'</span>';
-			}else{
-				$txt=$l->t('up to date');
-			}
-		}else{
-			$txt=$l->t('updates check is disabled');
-		}
-		return($txt);
-	}
-
-
 	/**
-	 * do ownCloud update
+	 * runs the update actions in maintenance mode, does not upgrade the source files
 	 */
-	public static function doUpdate() {
-
-		//update ownCloud core
-
-		//update all apps
+	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'));
+		}
+		$this->emit('\OC\Updater', 'maintenanceStart');
+		try {
+			\OC_DB::updateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
+			$this->emit('\OC\Updater', 'dbUpgrade');
 
-		//update version in config
+			// do a file cache upgrade for users with files
+			// this can take loooooooooooooooooooooooong
+			$this->upgradeFileCache();
+		} 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();
+		\OC_Config::setValue('maintenance', false);
+		$this->emit('\OC\Updater', 'maintenanceEnd');
+	}
 
+	private function upgradeFileCache() {
+		try {
+			$query = \OC_DB::prepare('
+				SELECT DISTINCT `user`
+				FROM `*PREFIX*fscache`
+			');
+			$result = $query->execute();
+		} catch (\Exception $e) {
+			return;
+		}
+		$users = $result->fetchAll();
+		if (count($users) == 0) {
+			return;
+		}
+		$step = 100 / count($users);
+		$percentCompleted = 0;
+		$lastPercentCompletedOutput = 0;
+		$startInfoShown = false;
+		foreach ($users as $userRow) {
+			$user = $userRow['user'];
+			\OC\Files\Filesystem::initMountPoints($user);
+			\OC\Files\Cache\Upgrade::doSilentUpgrade($user);
+			if (!$startInfoShown) {
+				//We show it only now, because otherwise Info about upgraded apps
+				//will appear between this and progress info
+				$this->emit('\OC\Updater', 'filecacheStart');
+				$startInfoShown = true;
+			}
+			$percentCompleted += $step;
+			$out = floor($percentCompleted);
+			if ($out != $lastPercentCompletedOutput) {
+				$this->emit('\OC\Updater', 'filecacheProgress', array($out));
+				$lastPercentCompletedOutput = $out;
+			}
+		}
+		$this->emit('\OC\Updater', 'filecacheDone');
 	}
 }