1 files changed, 159 insertions, 0 deletions
diff --git a/lib/private/updater.php b/lib/private/updater.php
new file mode 100644
index 00000000000..df7332a96a9
--- /dev/null
+++ b/lib/private/updater.php
@@ -0,0 +1,159 @@
+<?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;
+
+/**
+ * Class that handles autoupdating of ownCloud
+ *
+ * Hooks provided in scope \OC\Updater
+ *  - maintenanceStart()
+ *  - maintenanceEnd()
+ *  - dbUpgrade()
+ *  - filecacheStart()
+ *  - filecacheProgress(int $percentage)
+ *  - filecacheDone()
+ *  - failure(string $message)
+ */
+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 $updateUrl the url to check, i.e. 'http://apps.owncloud.com/updater.php'
+	 * @return array | bool
+	 */
+	public function check($updaterUrl) {
+
+		// Look up the cache - it is invalidated all 30 minutes
+		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));
+		}
+
+		$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;
+
+		// set a sensible timeout of 10 sec to stay responsive even if the update server is down.
+		$ctx = stream_context_create(
+			array(
+				'http' => array(
+					'timeout' => 10
+				)
+			)
+		);
+		$xml = @file_get_contents($url, 0, $ctx);
+		if ($xml == false) {
+			return array();
+		}
+		$data = @simplexml_load_string($xml);
+
+		$tmp = array();
+		$tmp['version'] = $data->version;
+		$tmp['versionstring'] = $data->versionstring;
+		$tmp['url'] = $data->url;
+		$tmp['web'] = $data->web;
+
+		// Cache the result
+		\OC_Appconfig::setValue('core', 'lastupdateResult', json_encode($data));
+
+		return $tmp;
+	}
+
+	/**
+	 * 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'));
+		}
+		$this->emit('\OC\Updater', 'maintenanceStart');
+		try {
+			\OC_DB::updateDbFromStructure(\OC::$SERVERROOT . '/db_structure.xml');
+			$this->emit('\OC\Updater', 'dbUpgrade');
+
+			// 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');
+	}
+}