nextcloud / server

lib/base.php

Indentation +992 added lines, -992 removed lines

@@ -68,998 +68,998 @@
  * OC_autoload!
  */
 class OC {
-	/**
-	 * Associative array for autoloading. classname => filename
-	 */
-	public static $CLASSPATH = array();
-	/**
-	 * The installation path for Nextcloud  on the server (e.g. /srv/http/nextcloud)
-	 */
-	public static $SERVERROOT = '';
-	/**
-	 * the current request path relative to the Nextcloud root (e.g. files/index.php)
-	 */
-	private static $SUBURI = '';
-	/**
-	 * the Nextcloud root path for http requests (e.g. nextcloud/)
-	 */
-	public static $WEBROOT = '';
-	/**
-	 * The installation path array of the apps folder on the server (e.g. /srv/http/nextcloud) 'path' and
-	 * web path in 'url'
-	 */
-	public static $APPSROOTS = array();
-
-	/**
-	 * @var string
-	 */
-	public static $configDir;
-
-	/**
-	 * requested app
-	 */
-	public static $REQUESTEDAPP = '';
-
-	/**
-	 * check if Nextcloud runs in cli mode
-	 */
-	public static $CLI = false;
-
-	/**
-	 * @var \OC\Autoloader $loader
-	 */
-	public static $loader = null;
-
-	/** @var \Composer\Autoload\ClassLoader $composerAutoloader */
-	public static $composerAutoloader = null;
-
-	/**
-	 * @var \OC\Server
-	 */
-	public static $server = null;
-
-	/**
-	 * @var \OC\Config
-	 */
-	private static $config = null;
-
-	/**
-	 * @throws \RuntimeException when the 3rdparty directory is missing or
-	 * the app path list is empty or contains an invalid path
-	 */
-	public static function initPaths() {
-		if(defined('PHPUNIT_CONFIG_DIR')) {
-			self::$configDir = OC::$SERVERROOT . '/' . PHPUNIT_CONFIG_DIR . '/';
-		} elseif(defined('PHPUNIT_RUN') and PHPUNIT_RUN and is_dir(OC::$SERVERROOT . '/tests/config/')) {
-			self::$configDir = OC::$SERVERROOT . '/tests/config/';
-		} elseif($dir = getenv('NEXTCLOUD_CONFIG_DIR')) {
-			self::$configDir = rtrim($dir, '/') . '/';
-		} else {
-			self::$configDir = OC::$SERVERROOT . '/config/';
-		}
-		self::$config = new \OC\Config(self::$configDir);
-
-		OC::$SUBURI = str_replace("\\", "/", substr(realpath($_SERVER["SCRIPT_FILENAME"]), strlen(OC::$SERVERROOT)));
-		/**
-		 * FIXME: The following lines are required because we can't yet instantiate
-		 *        \OC::$server->getRequest() since \OC::$server does not yet exist.
-		 */
-		$params = [
-			'server' => [
-				'SCRIPT_NAME' => $_SERVER['SCRIPT_NAME'],
-				'SCRIPT_FILENAME' => $_SERVER['SCRIPT_FILENAME'],
-			],
-		];
-		$fakeRequest = new \OC\AppFramework\Http\Request($params, null, new \OC\AllConfig(new \OC\SystemConfig(self::$config)));
-		$scriptName = $fakeRequest->getScriptName();
-		if (substr($scriptName, -1) == '/') {
-			$scriptName .= 'index.php';
-			//make sure suburi follows the same rules as scriptName
-			if (substr(OC::$SUBURI, -9) != 'index.php') {
-				if (substr(OC::$SUBURI, -1) != '/') {
-					OC::$SUBURI = OC::$SUBURI . '/';
-				}
-				OC::$SUBURI = OC::$SUBURI . 'index.php';
-			}
-		}
-
-
-		if (OC::$CLI) {
-			OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
-		} else {
-			if (substr($scriptName, 0 - strlen(OC::$SUBURI)) === OC::$SUBURI) {
-				OC::$WEBROOT = substr($scriptName, 0, 0 - strlen(OC::$SUBURI));
-
-				if (OC::$WEBROOT != '' && OC::$WEBROOT[0] !== '/') {
-					OC::$WEBROOT = '/' . OC::$WEBROOT;
-				}
-			} else {
-				// The scriptName is not ending with OC::$SUBURI
-				// This most likely means that we are calling from CLI.
-				// However some cron jobs still need to generate
-				// a web URL, so we use overwritewebroot as a fallback.
-				OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
-			}
-
-			// Resolve /nextcloud to /nextcloud/ to ensure to always have a trailing
-			// slash which is required by URL generation.
-			if (isset($_SERVER['REQUEST_URI']) && $_SERVER['REQUEST_URI'] === \OC::$WEBROOT &&
-					substr($_SERVER['REQUEST_URI'], -1) !== '/') {
-				header('Location: '.\OC::$WEBROOT.'/');
-				exit();
-			}
-		}
-
-		// search the apps folder
-		$config_paths = self::$config->getValue('apps_paths', array());
-		if (!empty($config_paths)) {
-			foreach ($config_paths as $paths) {
-				if (isset($paths['url']) && isset($paths['path'])) {
-					$paths['url'] = rtrim($paths['url'], '/');
-					$paths['path'] = rtrim($paths['path'], '/');
-					OC::$APPSROOTS[] = $paths;
-				}
-			}
-		} elseif (file_exists(OC::$SERVERROOT . '/apps')) {
-			OC::$APPSROOTS[] = array('path' => OC::$SERVERROOT . '/apps', 'url' => '/apps', 'writable' => true);
-		} elseif (file_exists(OC::$SERVERROOT . '/../apps')) {
-			OC::$APPSROOTS[] = array(
-				'path' => rtrim(dirname(OC::$SERVERROOT), '/') . '/apps',
-				'url' => '/apps',
-				'writable' => true
-			);
-		}
-
-		if (empty(OC::$APPSROOTS)) {
-			throw new \RuntimeException('apps directory not found! Please put the Nextcloud apps folder in the Nextcloud folder'
-				. ' or the folder above. You can also configure the location in the config.php file.');
-		}
-		$paths = array();
-		foreach (OC::$APPSROOTS as $path) {
-			$paths[] = $path['path'];
-			if (!is_dir($path['path'])) {
-				throw new \RuntimeException(sprintf('App directory "%s" not found! Please put the Nextcloud apps folder in the'
-					. ' Nextcloud folder or the folder above. You can also configure the location in the'
-					. ' config.php file.', $path['path']));
-			}
-		}
-
-		// set the right include path
-		set_include_path(
-			implode(PATH_SEPARATOR, $paths)
-		);
-	}
-
-	public static function checkConfig() {
-		$l = \OC::$server->getL10N('lib');
-
-		// Create config if it does not already exist
-		$configFilePath = self::$configDir .'/config.php';
-		if(!file_exists($configFilePath)) {
-			@touch($configFilePath);
-		}
-
-		// Check if config is writable
-		$configFileWritable = is_writable($configFilePath);
-		if (!$configFileWritable && !OC_Helper::isReadOnlyConfigEnabled()
-			|| !$configFileWritable && \OCP\Util::needUpgrade()) {
-
-			$urlGenerator = \OC::$server->getURLGenerator();
-
-			if (self::$CLI) {
-				echo $l->t('Cannot write into "config" directory!')."\n";
-				echo $l->t('This can usually be fixed by giving the webserver write access to the config directory')."\n";
-				echo "\n";
-				echo $l->t('See %s', [ $urlGenerator->linkToDocs('admin-dir_permissions') ])."\n";
-				exit;
-			} else {
-				OC_Template::printErrorPage(
-					$l->t('Cannot write into "config" directory!'),
-					$l->t('This can usually be fixed by giving the webserver write access to the config directory. See %s',
-					 [ $urlGenerator->linkToDocs('admin-dir_permissions') ])
-				);
-			}
-		}
-	}
-
-	public static function checkInstalled() {
-		if (defined('OC_CONSOLE')) {
-			return;
-		}
-		// Redirect to installer if not installed
-		if (!\OC::$server->getSystemConfig()->getValue('installed', false) && OC::$SUBURI !== '/index.php' && OC::$SUBURI !== '/status.php') {
-			if (OC::$CLI) {
-				throw new Exception('Not installed');
-			} else {
-				$url = OC::$WEBROOT . '/index.php';
-				header('Location: ' . $url);
-			}
-			exit();
-		}
-	}
-
-	public static function checkMaintenanceMode() {
-		// Allow ajax update script to execute without being stopped
-		if (\OC::$server->getSystemConfig()->getValue('maintenance', false) && OC::$SUBURI != '/core/ajax/update.php') {
-			// send http status 503
-			header('HTTP/1.1 503 Service Temporarily Unavailable');
-			header('Status: 503 Service Temporarily Unavailable');
-			header('Retry-After: 120');
-
-			// render error page
-			$template = new OC_Template('', 'update.user', 'guest');
-			OC_Util::addScript('maintenance-check');
-			OC_Util::addStyle('core', 'guest');
-			$template->printPage();
-			die();
-		}
-	}
-
-	/**
-	 * Prints the upgrade page
-	 *
-	 * @param \OC\SystemConfig $systemConfig
-	 */
-	private static function printUpgradePage(\OC\SystemConfig $systemConfig) {
-		$disableWebUpdater = $systemConfig->getValue('upgrade.disable-web', false);
-		$tooBig = false;
-		if (!$disableWebUpdater) {
-			$apps = \OC::$server->getAppManager();
-			if ($apps->isInstalled('user_ldap')) {
-				$qb = \OC::$server->getDatabaseConnection()->getQueryBuilder();
-
-				$result = $qb->selectAlias($qb->createFunction('COUNT(*)'), 'user_count')
-					->from('ldap_user_mapping')
-					->execute();
-				$row = $result->fetch();
-				$result->closeCursor();
-
-				$tooBig = ($row['user_count'] > 50);
-			}
-			if (!$tooBig && $apps->isInstalled('user_saml')) {
-				$qb = \OC::$server->getDatabaseConnection()->getQueryBuilder();
-
-				$result = $qb->selectAlias($qb->createFunction('COUNT(*)'), 'user_count')
-					->from('user_saml_users')
-					->execute();
-				$row = $result->fetch();
-				$result->closeCursor();
-
-				$tooBig = ($row['user_count'] > 50);
-			}
-			if (!$tooBig) {
-				// count users
-				$stats = \OC::$server->getUserManager()->countUsers();
-				$totalUsers = array_sum($stats);
-				$tooBig = ($totalUsers > 50);
-			}
-		}
-		$ignoreTooBigWarning = isset($_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup']) &&
-			$_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup'] === 'IAmSuperSureToDoThis';
-
-		if ($disableWebUpdater || ($tooBig && !$ignoreTooBigWarning)) {
-			// send http status 503
-			header('HTTP/1.1 503 Service Temporarily Unavailable');
-			header('Status: 503 Service Temporarily Unavailable');
-			header('Retry-After: 120');
-
-			// render error page
-			$template = new OC_Template('', 'update.use-cli', 'guest');
-			$template->assign('productName', 'nextcloud'); // for now
-			$template->assign('version', OC_Util::getVersionString());
-			$template->assign('tooBig', $tooBig);
-
-			$template->printPage();
-			die();
-		}
-
-		// check whether this is a core update or apps update
-		$installedVersion = $systemConfig->getValue('version', '0.0.0');
-		$currentVersion = implode('.', \OCP\Util::getVersion());
-
-		// if not a core upgrade, then it's apps upgrade
-		$isAppsOnlyUpgrade = version_compare($currentVersion, $installedVersion, '=');
-
-		$oldTheme = $systemConfig->getValue('theme');
-		$systemConfig->setValue('theme', '');
-		OC_Util::addScript('config'); // needed for web root
-		OC_Util::addScript('update');
-
-		/** @var \OC\App\AppManager $appManager */
-		$appManager = \OC::$server->getAppManager();
-
-		$tmpl = new OC_Template('', 'update.admin', 'guest');
-		$tmpl->assign('version', OC_Util::getVersionString());
-		$tmpl->assign('isAppsOnlyUpgrade', $isAppsOnlyUpgrade);
-
-		// get third party apps
-		$ocVersion = \OCP\Util::getVersion();
-		$ocVersion = implode('.', $ocVersion);
-		$incompatibleApps = $appManager->getIncompatibleApps($ocVersion);
-		$incompatibleShippedApps = [];
-		foreach ($incompatibleApps as $appInfo) {
-			if ($appManager->isShipped($appInfo['id'])) {
-				$incompatibleShippedApps[] = $appInfo['name'] . ' (' . $appInfo['id'] . ')';
-			}
-		}
-
-		if (!empty($incompatibleShippedApps)) {
-			$l = \OC::$server->getL10N('core');
-			$hint = $l->t('The files of the app %$1s were not replaced correctly. Make sure it is a version compatible with the server.', [implode(', ', $incompatibleShippedApps)]);
-			throw new \OC\HintException('The files of the app ' . implode(', ', $incompatibleShippedApps) . ' were not replaced correctly. Make sure it is a version compatible with the server.', $hint);
-		}
-
-		$tmpl->assign('appsToUpgrade', $appManager->getAppsNeedingUpgrade($ocVersion));
-		$tmpl->assign('incompatibleAppsList', $incompatibleApps);
-		$tmpl->assign('productName', 'Nextcloud'); // for now
-		$tmpl->assign('oldTheme', $oldTheme);
-		$tmpl->printPage();
-	}
-
-	public static function initSession() {
-		if(self::$server->getRequest()->getServerProtocol() === 'https') {
-			ini_set('session.cookie_secure', true);
-		}
-
-		// prevents javascript from accessing php session cookies
-		ini_set('session.cookie_httponly', 'true');
-
-		// set the cookie path to the Nextcloud directory
-		$cookie_path = OC::$WEBROOT ? : '/';
-		ini_set('session.cookie_path', $cookie_path);
-
-		// Let the session name be changed in the initSession Hook
-		$sessionName = OC_Util::getInstanceId();
-
-		try {
-			// Allow session apps to create a custom session object
-			$useCustomSession = false;
-			$session = self::$server->getSession();
-			OC_Hook::emit('OC', 'initSession', array('session' => &$session, 'sessionName' => &$sessionName, 'useCustomSession' => &$useCustomSession));
-			if (!$useCustomSession) {
-				// set the session name to the instance id - which is unique
-				$session = new \OC\Session\Internal($sessionName);
-			}
-
-			$cryptoWrapper = \OC::$server->getSessionCryptoWrapper();
-			$session = $cryptoWrapper->wrapSession($session);
-			self::$server->setSession($session);
-
-			// if session can't be started break with http 500 error
-		} catch (Exception $e) {
-			\OC::$server->getLogger()->logException($e, ['app' => 'base']);
-			//show the user a detailed error page
-			OC_Response::setStatus(OC_Response::STATUS_INTERNAL_SERVER_ERROR);
-			OC_Template::printExceptionErrorPage($e);
-			die();
-		}
-
-		$sessionLifeTime = self::getSessionLifeTime();
-
-		// session timeout
-		if ($session->exists('LAST_ACTIVITY') && (time() - $session->get('LAST_ACTIVITY') > $sessionLifeTime)) {
-			if (isset($_COOKIE[session_name()])) {
-				setcookie(session_name(), null, -1, self::$WEBROOT ? : '/');
-			}
-			\OC::$server->getUserSession()->logout();
-		}
-
-		$session->set('LAST_ACTIVITY', time());
-	}
-
-	/**
-	 * @return string
-	 */
-	private static function getSessionLifeTime() {
-		return \OC::$server->getConfig()->getSystemValue('session_lifetime', 60 * 60 * 24);
-	}
-
-	public static function loadAppClassPaths() {
-		foreach (OC_App::getEnabledApps() as $app) {
-			$appPath = OC_App::getAppPath($app);
-			if ($appPath === false) {
-				continue;
-			}
-
-			$file = $appPath . '/appinfo/classpath.php';
-			if (file_exists($file)) {
-				require_once $file;
-			}
-		}
-	}
-
-	/**
-	 * Try to set some values to the required Nextcloud default
-	 */
-	public static function setRequiredIniValues() {
-		@ini_set('default_charset', 'UTF-8');
-		@ini_set('gd.jpeg_ignore_warning', '1');
-	}
-
-	/**
-	 * Send the same site cookies
-	 */
-	private static function sendSameSiteCookies() {
-		$cookieParams = session_get_cookie_params();
-		$secureCookie = ($cookieParams['secure'] === true) ? 'secure; ' : '';
-		$policies = [
-			'lax',
-			'strict',
-		];
-
-		// Append __Host to the cookie if it meets the requirements
-		$cookiePrefix = '';
-		if($cookieParams['secure'] === true && $cookieParams['path'] === '/') {
-			$cookiePrefix = '__Host-';
-		}
-
-		foreach($policies as $policy) {
-			header(
-				sprintf(
-					'Set-Cookie: %snc_sameSiteCookie%s=true; path=%s; httponly;' . $secureCookie . 'expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=%s',
-					$cookiePrefix,
-					$policy,
-					$cookieParams['path'],
-					$policy
-				),
-				false
-			);
-		}
-	}
-
-	/**
-	 * Same Site cookie to further mitigate CSRF attacks. This cookie has to
-	 * be set in every request if cookies are sent to add a second level of
-	 * defense against CSRF.
-	 *
-	 * If the cookie is not sent this will set the cookie and reload the page.
-	 * We use an additional cookie since we want to protect logout CSRF and
-	 * also we can't directly interfere with PHP's session mechanism.
-	 */
-	private static function performSameSiteCookieProtection() {
-		$request = \OC::$server->getRequest();
-
-		// Some user agents are notorious and don't really properly follow HTTP
-		// specifications. For those, have an automated opt-out. Since the protection
-		// for remote.php is applied in base.php as starting point we need to opt out
-		// here.
-		$incompatibleUserAgents = [
-			// OS X Finder
-			'/^WebDAVFS/',
-			'/^Microsoft-WebDAV-MiniRedir/',
-		];
-		if($request->isUserAgent($incompatibleUserAgents)) {
-			return;
-		}
-
-		if(count($_COOKIE) > 0) {
-			$requestUri = $request->getScriptName();
-			$processingScript = explode('/', $requestUri);
-			$processingScript = $processingScript[count($processingScript)-1];
-
-			// index.php routes are handled in the middleware
-			if($processingScript === 'index.php') {
-				return;
-			}
-
-			// All other endpoints require the lax and the strict cookie
-			if(!$request->passesStrictCookieCheck()) {
-				self::sendSameSiteCookies();
-				// Debug mode gets access to the resources without strict cookie
-				// due to the fact that the SabreDAV browser also lives there.
-				if(!\OC::$server->getConfig()->getSystemValue('debug', false)) {
-					http_response_code(\OCP\AppFramework\Http::STATUS_SERVICE_UNAVAILABLE);
-					exit();
-				}
-			}
-		} elseif(!isset($_COOKIE['nc_sameSiteCookielax']) || !isset($_COOKIE['nc_sameSiteCookiestrict'])) {
-			self::sendSameSiteCookies();
-		}
-	}
-
-	public static function init() {
-		// calculate the root directories
-		OC::$SERVERROOT = str_replace("\\", '/', substr(__DIR__, 0, -4));
-
-		// register autoloader
-		$loaderStart = microtime(true);
-		require_once __DIR__ . '/autoloader.php';
-		self::$loader = new \OC\Autoloader([
-			OC::$SERVERROOT . '/lib/private/legacy',
-		]);
-		if (defined('PHPUNIT_RUN')) {
-			self::$loader->addValidRoot(OC::$SERVERROOT . '/tests');
-		}
-		spl_autoload_register(array(self::$loader, 'load'));
-		$loaderEnd = microtime(true);
-
-		self::$CLI = (php_sapi_name() == 'cli');
-
-		// Add default composer PSR-4 autoloader
-		self::$composerAutoloader = require_once OC::$SERVERROOT . '/lib/composer/autoload.php';
-
-		try {
-			self::initPaths();
-			// setup 3rdparty autoloader
-			$vendorAutoLoad = OC::$SERVERROOT. '/3rdparty/autoload.php';
-			if (!file_exists($vendorAutoLoad)) {
-				throw new \RuntimeException('Composer autoloader not found, unable to continue. Check the folder "3rdparty". Running "git submodule update --init" will initialize the git submodule that handles the subfolder "3rdparty".');
-			}
-			require_once $vendorAutoLoad;
-
-		} catch (\RuntimeException $e) {
-			if (!self::$CLI) {
-				$claimedProtocol = strtoupper($_SERVER['SERVER_PROTOCOL']);
-				$protocol = in_array($claimedProtocol, ['HTTP/1.0', 'HTTP/1.1', 'HTTP/2']) ? $claimedProtocol : 'HTTP/1.1';
-				header($protocol . ' ' . OC_Response::STATUS_SERVICE_UNAVAILABLE);
-			}
-			// we can't use the template error page here, because this needs the
-			// DI container which isn't available yet
-			print($e->getMessage());
-			exit();
-		}
-
-		// setup the basic server
-		self::$server = new \OC\Server(\OC::$WEBROOT, self::$config);
-		\OC::$server->getEventLogger()->log('autoloader', 'Autoloader', $loaderStart, $loaderEnd);
-		\OC::$server->getEventLogger()->start('boot', 'Initialize');
-
-		// Don't display errors and log them
-		error_reporting(E_ALL | E_STRICT);
-		@ini_set('display_errors', '0');
-		@ini_set('log_errors', '1');
-
-		if(!date_default_timezone_set('UTC')) {
-			throw new \RuntimeException('Could not set timezone to UTC');
-		}
-
-		//try to configure php to enable big file uploads.
-		//this doesn´t work always depending on the webserver and php configuration.
-		//Let´s try to overwrite some defaults anyway
-
-		//try to set the maximum execution time to 60min
-		if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
-			@set_time_limit(3600);
-		}
-		@ini_set('max_execution_time', '3600');
-		@ini_set('max_input_time', '3600');
-
-		//try to set the maximum filesize to 10G
-		@ini_set('upload_max_filesize', '10G');
-		@ini_set('post_max_size', '10G');
-		@ini_set('file_uploads', '50');
-
-		self::setRequiredIniValues();
-		self::handleAuthHeaders();
-		self::registerAutoloaderCache();
-
-		// initialize intl fallback is necessary
-		\Patchwork\Utf8\Bootup::initIntl();
-		OC_Util::isSetLocaleWorking();
-
-		if (!defined('PHPUNIT_RUN')) {
-			OC\Log\ErrorHandler::setLogger(\OC::$server->getLogger());
-			$debug = \OC::$server->getConfig()->getSystemValue('debug', false);
-			OC\Log\ErrorHandler::register($debug);
-		}
-
-		\OC::$server->getEventLogger()->start('init_session', 'Initialize session');
-		OC_App::loadApps(array('session'));
-		if (!self::$CLI) {
-			self::initSession();
-		}
-		\OC::$server->getEventLogger()->end('init_session');
-		self::checkConfig();
-		self::checkInstalled();
-
-		OC_Response::addSecurityHeaders();
-
-		self::performSameSiteCookieProtection();
-
-		if (!defined('OC_CONSOLE')) {
-			$errors = OC_Util::checkServer(\OC::$server->getSystemConfig());
-			if (count($errors) > 0) {
-				if (self::$CLI) {
-					// Convert l10n string into regular string for usage in database
-					$staticErrors = [];
-					foreach ($errors as $error) {
-						echo $error['error'] . "\n";
-						echo $error['hint'] . "\n\n";
-						$staticErrors[] = [
-							'error' => (string)$error['error'],
-							'hint' => (string)$error['hint'],
-						];
-					}
-
-					try {
-						\OC::$server->getConfig()->setAppValue('core', 'cronErrors', json_encode($staticErrors));
-					} catch (\Exception $e) {
-						echo('Writing to database failed');
-					}
-					exit(1);
-				} else {
-					OC_Response::setStatus(OC_Response::STATUS_SERVICE_UNAVAILABLE);
-					OC_Util::addStyle('guest');
-					OC_Template::printGuestPage('', 'error', array('errors' => $errors));
-					exit;
-				}
-			} elseif (self::$CLI && \OC::$server->getConfig()->getSystemValue('installed', false)) {
-				\OC::$server->getConfig()->deleteAppValue('core', 'cronErrors');
-			}
-		}
-		//try to set the session lifetime
-		$sessionLifeTime = self::getSessionLifeTime();
-		@ini_set('gc_maxlifetime', (string)$sessionLifeTime);
-
-		$systemConfig = \OC::$server->getSystemConfig();
-
-		// User and Groups
-		if (!$systemConfig->getValue("installed", false)) {
-			self::$server->getSession()->set('user_id', '');
-		}
-
-		OC_User::useBackend(new \OC\User\Database());
-		\OC::$server->getGroupManager()->addBackend(new \OC\Group\Database());
-
-		// Subscribe to the hook
-		\OCP\Util::connectHook(
-			'\OCA\Files_Sharing\API\Server2Server',
-			'preLoginNameUsedAsUserName',
-			'\OC\User\Database',
-			'preLoginNameUsedAsUserName'
-		);
-
-		//setup extra user backends
-		if (!\OCP\Util::needUpgrade()) {
-			OC_User::setupBackends();
-		} else {
-			// Run upgrades in incognito mode
-			OC_User::setIncognitoMode(true);
-		}
-
-		self::registerCleanupHooks();
-		self::registerFilesystemHooks();
-		self::registerShareHooks();
-		self::registerEncryptionWrapper();
-		self::registerEncryptionHooks();
-		self::registerAccountHooks();
-
-		// Make sure that the application class is not loaded before the database is setup
-		if ($systemConfig->getValue("installed", false)) {
-			$settings = new \OC\Settings\Application();
-			$settings->register();
-		}
-
-		//make sure temporary files are cleaned up
-		$tmpManager = \OC::$server->getTempManager();
-		register_shutdown_function(array($tmpManager, 'clean'));
-		$lockProvider = \OC::$server->getLockingProvider();
-		register_shutdown_function(array($lockProvider, 'releaseAll'));
-
-		// Check whether the sample configuration has been copied
-		if($systemConfig->getValue('copied_sample_config', false)) {
-			$l = \OC::$server->getL10N('lib');
-			header('HTTP/1.1 503 Service Temporarily Unavailable');
-			header('Status: 503 Service Temporarily Unavailable');
-			OC_Template::printErrorPage(
-				$l->t('Sample configuration detected'),
-				$l->t('It has been detected that the sample configuration has been copied. This can break your installation and is unsupported. Please read the documentation before performing changes on config.php')
-			);
-			return;
-		}
-
-		$request = \OC::$server->getRequest();
-		$host = $request->getInsecureServerHost();
-		/**
-		 * if the host passed in headers isn't trusted
-		 * FIXME: Should not be in here at all :see_no_evil:
-		 */
-		if (!OC::$CLI
-			// overwritehost is always trusted, workaround to not have to make
-			// \OC\AppFramework\Http\Request::getOverwriteHost public
-			&& self::$server->getConfig()->getSystemValue('overwritehost') === ''
-			&& !\OC::$server->getTrustedDomainHelper()->isTrustedDomain($host)
-			&& self::$server->getConfig()->getSystemValue('installed', false)
-		) {
-			// Allow access to CSS resources
-			$isScssRequest = false;
-			if(strpos($request->getPathInfo(), '/css/') === 0) {
-				$isScssRequest = true;
-			}
-
-			if(substr($request->getRequestUri(), -11) === '/status.php') {
-				OC_Response::setStatus(\OC_Response::STATUS_BAD_REQUEST);
-				header('Status: 400 Bad Request');
-				header('Content-Type: application/json');
-				echo '{"error": "Trusted domain error.", "code": 15}';
-				exit();
-			}
-
-			if (!$isScssRequest) {
-				OC_Response::setStatus(\OC_Response::STATUS_BAD_REQUEST);
-				header('Status: 400 Bad Request');
-
-				\OC::$server->getLogger()->info(
-					'Trusted domain error. "{remoteAddress}" tried to access using "{host}" as host.',
-					[
-						'app' => 'core',
-						'remoteAddress' => $request->getRemoteAddress(),
-						'host' => $host,
-					]
-				);
-
-				$tmpl = new OCP\Template('core', 'untrustedDomain', 'guest');
-				$tmpl->assign('docUrl', \OC::$server->getURLGenerator()->linkToDocs('admin-trusted-domains'));
-				$tmpl->printPage();
-
-				exit();
-			}
-		}
-		\OC::$server->getEventLogger()->end('boot');
-	}
-
-	/**
-	 * register hooks for the cleanup of cache and bruteforce protection
-	 */
-	public static function registerCleanupHooks() {
-		//don't try to do this before we are properly setup
-		if (\OC::$server->getSystemConfig()->getValue('installed', false) && !\OCP\Util::needUpgrade()) {
-
-			// NOTE: This will be replaced to use OCP
-			$userSession = self::$server->getUserSession();
-			$userSession->listen('\OC\User', 'postLogin', function () use ($userSession) {
-				if (!defined('PHPUNIT_RUN')) {
-					// reset brute force delay for this IP address and username
-					$uid = \OC::$server->getUserSession()->getUser()->getUID();
-					$request = \OC::$server->getRequest();
-					$throttler = \OC::$server->getBruteForceThrottler();
-					$throttler->resetDelay($request->getRemoteAddress(), 'login', ['user' => $uid]);
-				}
-
-				try {
-					$cache = new \OC\Cache\File();
-					$cache->gc();
-				} catch (\OC\ServerNotAvailableException $e) {
-					// not a GC exception, pass it on
-					throw $e;
-				} catch (\OC\ForbiddenException $e) {
-					// filesystem blocked for this request, ignore
-				} catch (\Exception $e) {
-					// a GC exception should not prevent users from using OC,
-					// so log the exception
-					\OC::$server->getLogger()->logException($e, [
-						'message' => 'Exception when running cache gc.',
-						'level' => ILogger::WARN,
-						'app' => 'core',
-					]);
-				}
-			});
-		}
-	}
-
-	private static function registerEncryptionWrapper() {
-		$manager = self::$server->getEncryptionManager();
-		\OCP\Util::connectHook('OC_Filesystem', 'preSetup', $manager, 'setupStorage');
-	}
-
-	private static function registerEncryptionHooks() {
-		$enabled = self::$server->getEncryptionManager()->isEnabled();
-		if ($enabled) {
-			\OCP\Util::connectHook(Share::class, 'post_shared', HookManager::class, 'postShared');
-			\OCP\Util::connectHook(Share::class, 'post_unshare', HookManager::class, 'postUnshared');
-			\OCP\Util::connectHook('OC_Filesystem', 'post_rename', HookManager::class, 'postRename');
-			\OCP\Util::connectHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', HookManager::class, 'postRestore');
-		}
-	}
-
-	private static function registerAccountHooks() {
-		$hookHandler = new \OC\Accounts\Hooks(\OC::$server->getLogger());
-		\OCP\Util::connectHook('OC_User', 'changeUser', $hookHandler, 'changeUserHook');
-	}
-
-	/**
-	 * register hooks for the filesystem
-	 */
-	public static function registerFilesystemHooks() {
-		// Check for blacklisted files
-		OC_Hook::connect('OC_Filesystem', 'write', Filesystem::class, 'isBlacklisted');
-		OC_Hook::connect('OC_Filesystem', 'rename', Filesystem::class, 'isBlacklisted');
-	}
-
-	/**
-	 * register hooks for sharing
-	 */
-	public static function registerShareHooks() {
-		if (\OC::$server->getSystemConfig()->getValue('installed')) {
-			OC_Hook::connect('OC_User', 'post_deleteUser', Hooks::class, 'post_deleteUser');
-			OC_Hook::connect('OC_User', 'post_removeFromGroup', Hooks::class, 'post_removeFromGroup');
-			OC_Hook::connect('OC_User', 'post_deleteGroup', Hooks::class, 'post_deleteGroup');
-		}
-	}
-
-	protected static function registerAutoloaderCache() {
-		// The class loader takes an optional low-latency cache, which MUST be
-		// namespaced. The instanceid is used for namespacing, but might be
-		// unavailable at this point. Furthermore, it might not be possible to
-		// generate an instanceid via \OC_Util::getInstanceId() because the
-		// config file may not be writable. As such, we only register a class
-		// loader cache if instanceid is available without trying to create one.
-		$instanceId = \OC::$server->getSystemConfig()->getValue('instanceid', null);
-		if ($instanceId) {
-			try {
-				$memcacheFactory = \OC::$server->getMemCacheFactory();
-				self::$loader->setMemoryCache($memcacheFactory->createLocal('Autoloader'));
-			} catch (\Exception $ex) {
-			}
-		}
-	}
-
-	/**
-	 * Handle the request
-	 */
-	public static function handleRequest() {
-
-		\OC::$server->getEventLogger()->start('handle_request', 'Handle request');
-		$systemConfig = \OC::$server->getSystemConfig();
-		// load all the classpaths from the enabled apps so they are available
-		// in the routing files of each app
-		OC::loadAppClassPaths();
-
-		// Check if Nextcloud is installed or in maintenance (update) mode
-		if (!$systemConfig->getValue('installed', false)) {
-			\OC::$server->getSession()->clear();
-			$setupHelper = new OC\Setup(
-				$systemConfig,
-				\OC::$server->getIniWrapper(),
-				\OC::$server->getL10N('lib'),
-				\OC::$server->query(\OCP\Defaults::class),
-				\OC::$server->getLogger(),
-				\OC::$server->getSecureRandom(),
-				\OC::$server->query(\OC\Installer::class)
-			);
-			$controller = new OC\Core\Controller\SetupController($setupHelper);
-			$controller->run($_POST);
-			exit();
-		}
-
-		$request = \OC::$server->getRequest();
-		$requestPath = $request->getRawPathInfo();
-		if ($requestPath === '/heartbeat') {
-			return;
-		}
-		if (substr($requestPath, -3) !== '.js') { // we need these files during the upgrade
-			self::checkMaintenanceMode();
-
-			if (\OCP\Util::needUpgrade()) {
-				if (function_exists('opcache_reset')) {
-					opcache_reset();
-				}
-				if (!$systemConfig->getValue('maintenance', false)) {
-					self::printUpgradePage($systemConfig);
-					exit();
-				}
-			}
-		}
-
-		// emergency app disabling
-		if ($requestPath === '/disableapp'
-			&& $request->getMethod() === 'POST'
-			&& ((array)$request->getParam('appid')) !== ''
-		) {
-			\OC_JSON::callCheck();
-			\OC_JSON::checkAdminUser();
-			$appIds = (array)$request->getParam('appid');
-			foreach($appIds as $appId) {
-				$appId = \OC_App::cleanAppId($appId);
-				\OC::$server->getAppManager()->disableApp($appId);
-			}
-			\OC_JSON::success();
-			exit();
-		}
-
-		// Always load authentication apps
-		OC_App::loadApps(['authentication']);
-
-		// Load minimum set of apps
-		if (!\OCP\Util::needUpgrade()
-			&& !$systemConfig->getValue('maintenance', false)) {
-			// For logged-in users: Load everything
-			if(\OC::$server->getUserSession()->isLoggedIn()) {
-				OC_App::loadApps();
-			} else {
-				// For guests: Load only filesystem and logging
-				OC_App::loadApps(array('filesystem', 'logging'));
-				self::handleLogin($request);
-			}
-		}
-
-		if (!self::$CLI) {
-			try {
-				if (!$systemConfig->getValue('maintenance', false) && !\OCP\Util::needUpgrade()) {
-					OC_App::loadApps(array('filesystem', 'logging'));
-					OC_App::loadApps();
-				}
-				OC_Util::setupFS();
-				OC::$server->getRouter()->match(\OC::$server->getRequest()->getRawPathInfo());
-				return;
-			} catch (Symfony\Component\Routing\Exception\ResourceNotFoundException $e) {
-				//header('HTTP/1.0 404 Not Found');
-			} catch (Symfony\Component\Routing\Exception\MethodNotAllowedException $e) {
-				OC_Response::setStatus(405);
-				return;
-			}
-		}
-
-		// Handle WebDAV
-		if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PROPFIND') {
-			// not allowed any more to prevent people
-			// mounting this root directly.
-			// Users need to mount remote.php/webdav instead.
-			header('HTTP/1.1 405 Method Not Allowed');
-			header('Status: 405 Method Not Allowed');
-			return;
-		}
-
-		// Someone is logged in
-		if (\OC::$server->getUserSession()->isLoggedIn()) {
-			OC_App::loadApps();
-			OC_User::setupBackends();
-			OC_Util::setupFS();
-			// FIXME
-			// Redirect to default application
-			OC_Util::redirectToDefaultPage();
-		} else {
-			// Not handled and not logged in
-			header('Location: '.\OC::$server->getURLGenerator()->linkToRouteAbsolute('core.login.showLoginForm'));
-		}
-	}
-
-	/**
-	 * Check login: apache auth, auth token, basic auth
-	 *
-	 * @param OCP\IRequest $request
-	 * @return boolean
-	 */
-	static function handleLogin(OCP\IRequest $request) {
-		$userSession = self::$server->getUserSession();
-		if (OC_User::handleApacheAuth()) {
-			return true;
-		}
-		if ($userSession->tryTokenLogin($request)) {
-			return true;
-		}
-		if (isset($_COOKIE['nc_username'])
-			&& isset($_COOKIE['nc_token'])
-			&& isset($_COOKIE['nc_session_id'])
-			&& $userSession->loginWithCookie($_COOKIE['nc_username'], $_COOKIE['nc_token'], $_COOKIE['nc_session_id'])) {
-			return true;
-		}
-		if ($userSession->tryBasicAuthLogin($request, \OC::$server->getBruteForceThrottler())) {
-			return true;
-		}
-		return false;
-	}
-
-	protected static function handleAuthHeaders() {
-		//copy http auth headers for apache+php-fcgid work around
-		if (isset($_SERVER['HTTP_XAUTHORIZATION']) && !isset($_SERVER['HTTP_AUTHORIZATION'])) {
-			$_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['HTTP_XAUTHORIZATION'];
-		}
-
-		// Extract PHP_AUTH_USER/PHP_AUTH_PW from other headers if necessary.
-		$vars = array(
-			'HTTP_AUTHORIZATION', // apache+php-cgi work around
-			'REDIRECT_HTTP_AUTHORIZATION', // apache+php-cgi alternative
-		);
-		foreach ($vars as $var) {
-			if (isset($_SERVER[$var]) && preg_match('/Basic\s+(.*)$/i', $_SERVER[$var], $matches)) {
-				list($name, $password) = explode(':', base64_decode($matches[1]), 2);
-				$_SERVER['PHP_AUTH_USER'] = $name;
-				$_SERVER['PHP_AUTH_PW'] = $password;
-				break;
-			}
-		}
-	}
+    /**
+     * Associative array for autoloading. classname => filename
+     */
+    public static $CLASSPATH = array();
+    /**
+     * The installation path for Nextcloud  on the server (e.g. /srv/http/nextcloud)
+     */
+    public static $SERVERROOT = '';
+    /**
+     * the current request path relative to the Nextcloud root (e.g. files/index.php)
+     */
+    private static $SUBURI = '';
+    /**
+     * the Nextcloud root path for http requests (e.g. nextcloud/)
+     */
+    public static $WEBROOT = '';
+    /**
+     * The installation path array of the apps folder on the server (e.g. /srv/http/nextcloud) 'path' and
+     * web path in 'url'
+     */
+    public static $APPSROOTS = array();
+
+    /**
+     * @var string
+     */
+    public static $configDir;
+
+    /**
+     * requested app
+     */
+    public static $REQUESTEDAPP = '';
+
+    /**
+     * check if Nextcloud runs in cli mode
+     */
+    public static $CLI = false;
+
+    /**
+     * @var \OC\Autoloader $loader
+     */
+    public static $loader = null;
+
+    /** @var \Composer\Autoload\ClassLoader $composerAutoloader */
+    public static $composerAutoloader = null;
+
+    /**
+     * @var \OC\Server
+     */
+    public static $server = null;
+
+    /**
+     * @var \OC\Config
+     */
+    private static $config = null;
+
+    /**
+     * @throws \RuntimeException when the 3rdparty directory is missing or
+     * the app path list is empty or contains an invalid path
+     */
+    public static function initPaths() {
+        if(defined('PHPUNIT_CONFIG_DIR')) {
+            self::$configDir = OC::$SERVERROOT . '/' . PHPUNIT_CONFIG_DIR . '/';
+        } elseif(defined('PHPUNIT_RUN') and PHPUNIT_RUN and is_dir(OC::$SERVERROOT . '/tests/config/')) {
+            self::$configDir = OC::$SERVERROOT . '/tests/config/';
+        } elseif($dir = getenv('NEXTCLOUD_CONFIG_DIR')) {
+            self::$configDir = rtrim($dir, '/') . '/';
+        } else {
+            self::$configDir = OC::$SERVERROOT . '/config/';
+        }
+        self::$config = new \OC\Config(self::$configDir);
+
+        OC::$SUBURI = str_replace("\\", "/", substr(realpath($_SERVER["SCRIPT_FILENAME"]), strlen(OC::$SERVERROOT)));
+        /**
+         * FIXME: The following lines are required because we can't yet instantiate
+         *        \OC::$server->getRequest() since \OC::$server does not yet exist.
+         */
+        $params = [
+            'server' => [
+                'SCRIPT_NAME' => $_SERVER['SCRIPT_NAME'],
+                'SCRIPT_FILENAME' => $_SERVER['SCRIPT_FILENAME'],
+            ],
+        ];
+        $fakeRequest = new \OC\AppFramework\Http\Request($params, null, new \OC\AllConfig(new \OC\SystemConfig(self::$config)));
+        $scriptName = $fakeRequest->getScriptName();
+        if (substr($scriptName, -1) == '/') {
+            $scriptName .= 'index.php';
+            //make sure suburi follows the same rules as scriptName
+            if (substr(OC::$SUBURI, -9) != 'index.php') {
+                if (substr(OC::$SUBURI, -1) != '/') {
+                    OC::$SUBURI = OC::$SUBURI . '/';
+                }
+                OC::$SUBURI = OC::$SUBURI . 'index.php';
+            }
+        }
+
+
+        if (OC::$CLI) {
+            OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
+        } else {
+            if (substr($scriptName, 0 - strlen(OC::$SUBURI)) === OC::$SUBURI) {
+                OC::$WEBROOT = substr($scriptName, 0, 0 - strlen(OC::$SUBURI));
+
+                if (OC::$WEBROOT != '' && OC::$WEBROOT[0] !== '/') {
+                    OC::$WEBROOT = '/' . OC::$WEBROOT;
+                }
+            } else {
+                // The scriptName is not ending with OC::$SUBURI
+                // This most likely means that we are calling from CLI.
+                // However some cron jobs still need to generate
+                // a web URL, so we use overwritewebroot as a fallback.
+                OC::$WEBROOT = self::$config->getValue('overwritewebroot', '');
+            }
+
+            // Resolve /nextcloud to /nextcloud/ to ensure to always have a trailing
+            // slash which is required by URL generation.
+            if (isset($_SERVER['REQUEST_URI']) && $_SERVER['REQUEST_URI'] === \OC::$WEBROOT &&
+                    substr($_SERVER['REQUEST_URI'], -1) !== '/') {
+                header('Location: '.\OC::$WEBROOT.'/');
+                exit();
+            }
+        }
+
+        // search the apps folder
+        $config_paths = self::$config->getValue('apps_paths', array());
+        if (!empty($config_paths)) {
+            foreach ($config_paths as $paths) {
+                if (isset($paths['url']) && isset($paths['path'])) {
+                    $paths['url'] = rtrim($paths['url'], '/');
+                    $paths['path'] = rtrim($paths['path'], '/');
+                    OC::$APPSROOTS[] = $paths;
+                }
+            }
+        } elseif (file_exists(OC::$SERVERROOT . '/apps')) {
+            OC::$APPSROOTS[] = array('path' => OC::$SERVERROOT . '/apps', 'url' => '/apps', 'writable' => true);
+        } elseif (file_exists(OC::$SERVERROOT . '/../apps')) {
+            OC::$APPSROOTS[] = array(
+                'path' => rtrim(dirname(OC::$SERVERROOT), '/') . '/apps',
+                'url' => '/apps',
+                'writable' => true
+            );
+        }
+
+        if (empty(OC::$APPSROOTS)) {
+            throw new \RuntimeException('apps directory not found! Please put the Nextcloud apps folder in the Nextcloud folder'
+                . ' or the folder above. You can also configure the location in the config.php file.');
+        }
+        $paths = array();
+        foreach (OC::$APPSROOTS as $path) {
+            $paths[] = $path['path'];
+            if (!is_dir($path['path'])) {
+                throw new \RuntimeException(sprintf('App directory "%s" not found! Please put the Nextcloud apps folder in the'
+                    . ' Nextcloud folder or the folder above. You can also configure the location in the'
+                    . ' config.php file.', $path['path']));
+            }
+        }
+
+        // set the right include path
+        set_include_path(
+            implode(PATH_SEPARATOR, $paths)
+        );
+    }
+
+    public static function checkConfig() {
+        $l = \OC::$server->getL10N('lib');
+
+        // Create config if it does not already exist
+        $configFilePath = self::$configDir .'/config.php';
+        if(!file_exists($configFilePath)) {
+            @touch($configFilePath);
+        }
+
+        // Check if config is writable
+        $configFileWritable = is_writable($configFilePath);
+        if (!$configFileWritable && !OC_Helper::isReadOnlyConfigEnabled()
+            || !$configFileWritable && \OCP\Util::needUpgrade()) {
+
+            $urlGenerator = \OC::$server->getURLGenerator();
+
+            if (self::$CLI) {
+                echo $l->t('Cannot write into "config" directory!')."\n";
+                echo $l->t('This can usually be fixed by giving the webserver write access to the config directory')."\n";
+                echo "\n";
+                echo $l->t('See %s', [ $urlGenerator->linkToDocs('admin-dir_permissions') ])."\n";
+                exit;
+            } else {
+                OC_Template::printErrorPage(
+                    $l->t('Cannot write into "config" directory!'),
+                    $l->t('This can usually be fixed by giving the webserver write access to the config directory. See %s',
+                        [ $urlGenerator->linkToDocs('admin-dir_permissions') ])
+                );
+            }
+        }
+    }
+
+    public static function checkInstalled() {
+        if (defined('OC_CONSOLE')) {
+            return;
+        }
+        // Redirect to installer if not installed
+        if (!\OC::$server->getSystemConfig()->getValue('installed', false) && OC::$SUBURI !== '/index.php' && OC::$SUBURI !== '/status.php') {
+            if (OC::$CLI) {
+                throw new Exception('Not installed');
+            } else {
+                $url = OC::$WEBROOT . '/index.php';
+                header('Location: ' . $url);
+            }
+            exit();
+        }
+    }
+
+    public static function checkMaintenanceMode() {
+        // Allow ajax update script to execute without being stopped
+        if (\OC::$server->getSystemConfig()->getValue('maintenance', false) && OC::$SUBURI != '/core/ajax/update.php') {
+            // send http status 503
+            header('HTTP/1.1 503 Service Temporarily Unavailable');
+            header('Status: 503 Service Temporarily Unavailable');
+            header('Retry-After: 120');
+
+            // render error page
+            $template = new OC_Template('', 'update.user', 'guest');
+            OC_Util::addScript('maintenance-check');
+            OC_Util::addStyle('core', 'guest');
+            $template->printPage();
+            die();
+        }
+    }
+
+    /**
+     * Prints the upgrade page
+     *
+     * @param \OC\SystemConfig $systemConfig
+     */
+    private static function printUpgradePage(\OC\SystemConfig $systemConfig) {
+        $disableWebUpdater = $systemConfig->getValue('upgrade.disable-web', false);
+        $tooBig = false;
+        if (!$disableWebUpdater) {
+            $apps = \OC::$server->getAppManager();
+            if ($apps->isInstalled('user_ldap')) {
+                $qb = \OC::$server->getDatabaseConnection()->getQueryBuilder();
+
+                $result = $qb->selectAlias($qb->createFunction('COUNT(*)'), 'user_count')
+                    ->from('ldap_user_mapping')
+                    ->execute();
+                $row = $result->fetch();
+                $result->closeCursor();
+
+                $tooBig = ($row['user_count'] > 50);
+            }
+            if (!$tooBig && $apps->isInstalled('user_saml')) {
+                $qb = \OC::$server->getDatabaseConnection()->getQueryBuilder();
+
+                $result = $qb->selectAlias($qb->createFunction('COUNT(*)'), 'user_count')
+                    ->from('user_saml_users')
+                    ->execute();
+                $row = $result->fetch();
+                $result->closeCursor();
+
+                $tooBig = ($row['user_count'] > 50);
+            }
+            if (!$tooBig) {
+                // count users
+                $stats = \OC::$server->getUserManager()->countUsers();
+                $totalUsers = array_sum($stats);
+                $tooBig = ($totalUsers > 50);
+            }
+        }
+        $ignoreTooBigWarning = isset($_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup']) &&
+            $_GET['IKnowThatThisIsABigInstanceAndTheUpdateRequestCouldRunIntoATimeoutAndHowToRestoreABackup'] === 'IAmSuperSureToDoThis';
+
+        if ($disableWebUpdater || ($tooBig && !$ignoreTooBigWarning)) {
+            // send http status 503
+            header('HTTP/1.1 503 Service Temporarily Unavailable');
+            header('Status: 503 Service Temporarily Unavailable');
+            header('Retry-After: 120');
+
+            // render error page
+            $template = new OC_Template('', 'update.use-cli', 'guest');
+            $template->assign('productName', 'nextcloud'); // for now
+            $template->assign('version', OC_Util::getVersionString());
+            $template->assign('tooBig', $tooBig);
+
+            $template->printPage();
+            die();
+        }
+
+        // check whether this is a core update or apps update
+        $installedVersion = $systemConfig->getValue('version', '0.0.0');
+        $currentVersion = implode('.', \OCP\Util::getVersion());
+
+        // if not a core upgrade, then it's apps upgrade
+        $isAppsOnlyUpgrade = version_compare($currentVersion, $installedVersion, '=');
+
+        $oldTheme = $systemConfig->getValue('theme');
+        $systemConfig->setValue('theme', '');
+        OC_Util::addScript('config'); // needed for web root
+        OC_Util::addScript('update');
+
+        /** @var \OC\App\AppManager $appManager */
+        $appManager = \OC::$server->getAppManager();
+
+        $tmpl = new OC_Template('', 'update.admin', 'guest');
+        $tmpl->assign('version', OC_Util::getVersionString());
+        $tmpl->assign('isAppsOnlyUpgrade', $isAppsOnlyUpgrade);
+
+        // get third party apps
+        $ocVersion = \OCP\Util::getVersion();
+        $ocVersion = implode('.', $ocVersion);
+        $incompatibleApps = $appManager->getIncompatibleApps($ocVersion);
+        $incompatibleShippedApps = [];
+        foreach ($incompatibleApps as $appInfo) {
+            if ($appManager->isShipped($appInfo['id'])) {
+                $incompatibleShippedApps[] = $appInfo['name'] . ' (' . $appInfo['id'] . ')';
+            }
+        }
+
+        if (!empty($incompatibleShippedApps)) {
+            $l = \OC::$server->getL10N('core');
+            $hint = $l->t('The files of the app %$1s were not replaced correctly. Make sure it is a version compatible with the server.', [implode(', ', $incompatibleShippedApps)]);
+            throw new \OC\HintException('The files of the app ' . implode(', ', $incompatibleShippedApps) . ' were not replaced correctly. Make sure it is a version compatible with the server.', $hint);
+        }
+
+        $tmpl->assign('appsToUpgrade', $appManager->getAppsNeedingUpgrade($ocVersion));
+        $tmpl->assign('incompatibleAppsList', $incompatibleApps);
+        $tmpl->assign('productName', 'Nextcloud'); // for now
+        $tmpl->assign('oldTheme', $oldTheme);
+        $tmpl->printPage();
+    }
+
+    public static function initSession() {
+        if(self::$server->getRequest()->getServerProtocol() === 'https') {
+            ini_set('session.cookie_secure', true);
+        }
+
+        // prevents javascript from accessing php session cookies
+        ini_set('session.cookie_httponly', 'true');
+
+        // set the cookie path to the Nextcloud directory
+        $cookie_path = OC::$WEBROOT ? : '/';
+        ini_set('session.cookie_path', $cookie_path);
+
+        // Let the session name be changed in the initSession Hook
+        $sessionName = OC_Util::getInstanceId();
+
+        try {
+            // Allow session apps to create a custom session object
+            $useCustomSession = false;
+            $session = self::$server->getSession();
+            OC_Hook::emit('OC', 'initSession', array('session' => &$session, 'sessionName' => &$sessionName, 'useCustomSession' => &$useCustomSession));
+            if (!$useCustomSession) {
+                // set the session name to the instance id - which is unique
+                $session = new \OC\Session\Internal($sessionName);
+            }
+
+            $cryptoWrapper = \OC::$server->getSessionCryptoWrapper();
+            $session = $cryptoWrapper->wrapSession($session);
+            self::$server->setSession($session);
+
+            // if session can't be started break with http 500 error
+        } catch (Exception $e) {
+            \OC::$server->getLogger()->logException($e, ['app' => 'base']);
+            //show the user a detailed error page
+            OC_Response::setStatus(OC_Response::STATUS_INTERNAL_SERVER_ERROR);
+            OC_Template::printExceptionErrorPage($e);
+            die();
+        }
+
+        $sessionLifeTime = self::getSessionLifeTime();
+
+        // session timeout
+        if ($session->exists('LAST_ACTIVITY') && (time() - $session->get('LAST_ACTIVITY') > $sessionLifeTime)) {
+            if (isset($_COOKIE[session_name()])) {
+                setcookie(session_name(), null, -1, self::$WEBROOT ? : '/');
+            }
+            \OC::$server->getUserSession()->logout();
+        }
+
+        $session->set('LAST_ACTIVITY', time());
+    }
+
+    /**
+     * @return string
+     */
+    private static function getSessionLifeTime() {
+        return \OC::$server->getConfig()->getSystemValue('session_lifetime', 60 * 60 * 24);
+    }
+
+    public static function loadAppClassPaths() {
+        foreach (OC_App::getEnabledApps() as $app) {
+            $appPath = OC_App::getAppPath($app);
+            if ($appPath === false) {
+                continue;
+            }
+
+            $file = $appPath . '/appinfo/classpath.php';
+            if (file_exists($file)) {
+                require_once $file;
+            }
+        }
+    }
+
+    /**
+     * Try to set some values to the required Nextcloud default
+     */
+    public static function setRequiredIniValues() {
+        @ini_set('default_charset', 'UTF-8');
+        @ini_set('gd.jpeg_ignore_warning', '1');
+    }
+
+    /**
+     * Send the same site cookies
+     */
+    private static function sendSameSiteCookies() {
+        $cookieParams = session_get_cookie_params();
+        $secureCookie = ($cookieParams['secure'] === true) ? 'secure; ' : '';
+        $policies = [
+            'lax',
+            'strict',
+        ];
+
+        // Append __Host to the cookie if it meets the requirements
+        $cookiePrefix = '';
+        if($cookieParams['secure'] === true && $cookieParams['path'] === '/') {
+            $cookiePrefix = '__Host-';
+        }
+
+        foreach($policies as $policy) {
+            header(
+                sprintf(
+                    'Set-Cookie: %snc_sameSiteCookie%s=true; path=%s; httponly;' . $secureCookie . 'expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=%s',
+                    $cookiePrefix,
+                    $policy,
+                    $cookieParams['path'],
+                    $policy
+                ),
+                false
+            );
+        }
+    }
+
+    /**
+     * Same Site cookie to further mitigate CSRF attacks. This cookie has to
+     * be set in every request if cookies are sent to add a second level of
+     * defense against CSRF.
+     *
+     * If the cookie is not sent this will set the cookie and reload the page.
+     * We use an additional cookie since we want to protect logout CSRF and
+     * also we can't directly interfere with PHP's session mechanism.
+     */
+    private static function performSameSiteCookieProtection() {
+        $request = \OC::$server->getRequest();
+
+        // Some user agents are notorious and don't really properly follow HTTP
+        // specifications. For those, have an automated opt-out. Since the protection
+        // for remote.php is applied in base.php as starting point we need to opt out
+        // here.
+        $incompatibleUserAgents = [
+            // OS X Finder
+            '/^WebDAVFS/',
+            '/^Microsoft-WebDAV-MiniRedir/',
+        ];
+        if($request->isUserAgent($incompatibleUserAgents)) {
+            return;
+        }
+
+        if(count($_COOKIE) > 0) {
+            $requestUri = $request->getScriptName();
+            $processingScript = explode('/', $requestUri);
+            $processingScript = $processingScript[count($processingScript)-1];
+
+            // index.php routes are handled in the middleware
+            if($processingScript === 'index.php') {
+                return;
+            }
+
+            // All other endpoints require the lax and the strict cookie
+            if(!$request->passesStrictCookieCheck()) {
+                self::sendSameSiteCookies();
+                // Debug mode gets access to the resources without strict cookie
+                // due to the fact that the SabreDAV browser also lives there.
+                if(!\OC::$server->getConfig()->getSystemValue('debug', false)) {
+                    http_response_code(\OCP\AppFramework\Http::STATUS_SERVICE_UNAVAILABLE);
+                    exit();
+                }
+            }
+        } elseif(!isset($_COOKIE['nc_sameSiteCookielax']) || !isset($_COOKIE['nc_sameSiteCookiestrict'])) {
+            self::sendSameSiteCookies();
+        }
+    }
+
+    public static function init() {
+        // calculate the root directories
+        OC::$SERVERROOT = str_replace("\\", '/', substr(__DIR__, 0, -4));
+
+        // register autoloader
+        $loaderStart = microtime(true);
+        require_once __DIR__ . '/autoloader.php';
+        self::$loader = new \OC\Autoloader([
+            OC::$SERVERROOT . '/lib/private/legacy',
+        ]);
+        if (defined('PHPUNIT_RUN')) {
+            self::$loader->addValidRoot(OC::$SERVERROOT . '/tests');
+        }
+        spl_autoload_register(array(self::$loader, 'load'));
+        $loaderEnd = microtime(true);
+
+        self::$CLI = (php_sapi_name() == 'cli');
+
+        // Add default composer PSR-4 autoloader
+        self::$composerAutoloader = require_once OC::$SERVERROOT . '/lib/composer/autoload.php';
+
+        try {
+            self::initPaths();
+            // setup 3rdparty autoloader
+            $vendorAutoLoad = OC::$SERVERROOT. '/3rdparty/autoload.php';
+            if (!file_exists($vendorAutoLoad)) {
+                throw new \RuntimeException('Composer autoloader not found, unable to continue. Check the folder "3rdparty". Running "git submodule update --init" will initialize the git submodule that handles the subfolder "3rdparty".');
+            }
+            require_once $vendorAutoLoad;
+
+        } catch (\RuntimeException $e) {
+            if (!self::$CLI) {
+                $claimedProtocol = strtoupper($_SERVER['SERVER_PROTOCOL']);
+                $protocol = in_array($claimedProtocol, ['HTTP/1.0', 'HTTP/1.1', 'HTTP/2']) ? $claimedProtocol : 'HTTP/1.1';
+                header($protocol . ' ' . OC_Response::STATUS_SERVICE_UNAVAILABLE);
+            }
+            // we can't use the template error page here, because this needs the
+            // DI container which isn't available yet
+            print($e->getMessage());
+            exit();
+        }
+
+        // setup the basic server
+        self::$server = new \OC\Server(\OC::$WEBROOT, self::$config);
+        \OC::$server->getEventLogger()->log('autoloader', 'Autoloader', $loaderStart, $loaderEnd);
+        \OC::$server->getEventLogger()->start('boot', 'Initialize');
+
+        // Don't display errors and log them
+        error_reporting(E_ALL | E_STRICT);
+        @ini_set('display_errors', '0');
+        @ini_set('log_errors', '1');
+
+        if(!date_default_timezone_set('UTC')) {
+            throw new \RuntimeException('Could not set timezone to UTC');
+        }
+
+        //try to configure php to enable big file uploads.
+        //this doesn´t work always depending on the webserver and php configuration.
+        //Let´s try to overwrite some defaults anyway
+
+        //try to set the maximum execution time to 60min
+        if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
+            @set_time_limit(3600);
+        }
+        @ini_set('max_execution_time', '3600');
+        @ini_set('max_input_time', '3600');
+
+        //try to set the maximum filesize to 10G
+        @ini_set('upload_max_filesize', '10G');
+        @ini_set('post_max_size', '10G');
+        @ini_set('file_uploads', '50');
+
+        self::setRequiredIniValues();
+        self::handleAuthHeaders();
+        self::registerAutoloaderCache();
+
+        // initialize intl fallback is necessary
+        \Patchwork\Utf8\Bootup::initIntl();
+        OC_Util::isSetLocaleWorking();
+
+        if (!defined('PHPUNIT_RUN')) {
+            OC\Log\ErrorHandler::setLogger(\OC::$server->getLogger());
+            $debug = \OC::$server->getConfig()->getSystemValue('debug', false);
+            OC\Log\ErrorHandler::register($debug);
+        }
+
+        \OC::$server->getEventLogger()->start('init_session', 'Initialize session');
+        OC_App::loadApps(array('session'));
+        if (!self::$CLI) {
+            self::initSession();
+        }
+        \OC::$server->getEventLogger()->end('init_session');
+        self::checkConfig();
+        self::checkInstalled();
+
+        OC_Response::addSecurityHeaders();
+
+        self::performSameSiteCookieProtection();
+
+        if (!defined('OC_CONSOLE')) {
+            $errors = OC_Util::checkServer(\OC::$server->getSystemConfig());
+            if (count($errors) > 0) {
+                if (self::$CLI) {
+                    // Convert l10n string into regular string for usage in database
+                    $staticErrors = [];
+                    foreach ($errors as $error) {
+                        echo $error['error'] . "\n";
+                        echo $error['hint'] . "\n\n";
+                        $staticErrors[] = [
+                            'error' => (string)$error['error'],
+                            'hint' => (string)$error['hint'],
+                        ];
+                    }
+
+                    try {
+                        \OC::$server->getConfig()->setAppValue('core', 'cronErrors', json_encode($staticErrors));
+                    } catch (\Exception $e) {
+                        echo('Writing to database failed');
+                    }
+                    exit(1);
+                } else {
+                    OC_Response::setStatus(OC_Response::STATUS_SERVICE_UNAVAILABLE);
+                    OC_Util::addStyle('guest');
+                    OC_Template::printGuestPage('', 'error', array('errors' => $errors));
+                    exit;
+                }
+            } elseif (self::$CLI && \OC::$server->getConfig()->getSystemValue('installed', false)) {
+                \OC::$server->getConfig()->deleteAppValue('core', 'cronErrors');
+            }
+        }
+        //try to set the session lifetime
+        $sessionLifeTime = self::getSessionLifeTime();
+        @ini_set('gc_maxlifetime', (string)$sessionLifeTime);
+
+        $systemConfig = \OC::$server->getSystemConfig();
+
+        // User and Groups
+        if (!$systemConfig->getValue("installed", false)) {
+            self::$server->getSession()->set('user_id', '');
+        }
+
+        OC_User::useBackend(new \OC\User\Database());
+        \OC::$server->getGroupManager()->addBackend(new \OC\Group\Database());
+
+        // Subscribe to the hook
+        \OCP\Util::connectHook(
+            '\OCA\Files_Sharing\API\Server2Server',
+            'preLoginNameUsedAsUserName',
+            '\OC\User\Database',
+            'preLoginNameUsedAsUserName'
+        );
+
+        //setup extra user backends
+        if (!\OCP\Util::needUpgrade()) {
+            OC_User::setupBackends();
+        } else {
+            // Run upgrades in incognito mode
+            OC_User::setIncognitoMode(true);
+        }
+
+        self::registerCleanupHooks();
+        self::registerFilesystemHooks();
+        self::registerShareHooks();
+        self::registerEncryptionWrapper();
+        self::registerEncryptionHooks();
+        self::registerAccountHooks();
+
+        // Make sure that the application class is not loaded before the database is setup
+        if ($systemConfig->getValue("installed", false)) {
+            $settings = new \OC\Settings\Application();
+            $settings->register();
+        }
+
+        //make sure temporary files are cleaned up
+        $tmpManager = \OC::$server->getTempManager();
+        register_shutdown_function(array($tmpManager, 'clean'));
+        $lockProvider = \OC::$server->getLockingProvider();
+        register_shutdown_function(array($lockProvider, 'releaseAll'));
+
+        // Check whether the sample configuration has been copied
+        if($systemConfig->getValue('copied_sample_config', false)) {
+            $l = \OC::$server->getL10N('lib');
+            header('HTTP/1.1 503 Service Temporarily Unavailable');
+            header('Status: 503 Service Temporarily Unavailable');
+            OC_Template::printErrorPage(
+                $l->t('Sample configuration detected'),
+                $l->t('It has been detected that the sample configuration has been copied. This can break your installation and is unsupported. Please read the documentation before performing changes on config.php')
+            );
+            return;
+        }
+
+        $request = \OC::$server->getRequest();
+        $host = $request->getInsecureServerHost();
+        /**
+         * if the host passed in headers isn't trusted
+         * FIXME: Should not be in here at all :see_no_evil:
+         */
+        if (!OC::$CLI
+            // overwritehost is always trusted, workaround to not have to make
+            // \OC\AppFramework\Http\Request::getOverwriteHost public
+            && self::$server->getConfig()->getSystemValue('overwritehost') === ''
+            && !\OC::$server->getTrustedDomainHelper()->isTrustedDomain($host)
+            && self::$server->getConfig()->getSystemValue('installed', false)
+        ) {
+            // Allow access to CSS resources
+            $isScssRequest = false;
+            if(strpos($request->getPathInfo(), '/css/') === 0) {
+                $isScssRequest = true;
+            }
+
+            if(substr($request->getRequestUri(), -11) === '/status.php') {
+                OC_Response::setStatus(\OC_Response::STATUS_BAD_REQUEST);
+                header('Status: 400 Bad Request');
+                header('Content-Type: application/json');
+                echo '{"error": "Trusted domain error.", "code": 15}';
+                exit();
+            }
+
+            if (!$isScssRequest) {
+                OC_Response::setStatus(\OC_Response::STATUS_BAD_REQUEST);
+                header('Status: 400 Bad Request');
+
+                \OC::$server->getLogger()->info(
+                    'Trusted domain error. "{remoteAddress}" tried to access using "{host}" as host.',
+                    [
+                        'app' => 'core',
+                        'remoteAddress' => $request->getRemoteAddress(),
+                        'host' => $host,
+                    ]
+                );
+
+                $tmpl = new OCP\Template('core', 'untrustedDomain', 'guest');
+                $tmpl->assign('docUrl', \OC::$server->getURLGenerator()->linkToDocs('admin-trusted-domains'));
+                $tmpl->printPage();
+
+                exit();
+            }
+        }
+        \OC::$server->getEventLogger()->end('boot');
+    }
+
+    /**
+     * register hooks for the cleanup of cache and bruteforce protection
+     */
+    public static function registerCleanupHooks() {
+        //don't try to do this before we are properly setup
+        if (\OC::$server->getSystemConfig()->getValue('installed', false) && !\OCP\Util::needUpgrade()) {
+
+            // NOTE: This will be replaced to use OCP
+            $userSession = self::$server->getUserSession();
+            $userSession->listen('\OC\User', 'postLogin', function () use ($userSession) {
+                if (!defined('PHPUNIT_RUN')) {
+                    // reset brute force delay for this IP address and username
+                    $uid = \OC::$server->getUserSession()->getUser()->getUID();
+                    $request = \OC::$server->getRequest();
+                    $throttler = \OC::$server->getBruteForceThrottler();
+                    $throttler->resetDelay($request->getRemoteAddress(), 'login', ['user' => $uid]);
+                }
+
+                try {
+                    $cache = new \OC\Cache\File();
+                    $cache->gc();
+                } catch (\OC\ServerNotAvailableException $e) {
+                    // not a GC exception, pass it on
+                    throw $e;
+                } catch (\OC\ForbiddenException $e) {
+                    // filesystem blocked for this request, ignore
+                } catch (\Exception $e) {
+                    // a GC exception should not prevent users from using OC,
+                    // so log the exception
+                    \OC::$server->getLogger()->logException($e, [
+                        'message' => 'Exception when running cache gc.',
+                        'level' => ILogger::WARN,
+                        'app' => 'core',
+                    ]);
+                }
+            });
+        }
+    }
+
+    private static function registerEncryptionWrapper() {
+        $manager = self::$server->getEncryptionManager();
+        \OCP\Util::connectHook('OC_Filesystem', 'preSetup', $manager, 'setupStorage');
+    }
+
+    private static function registerEncryptionHooks() {
+        $enabled = self::$server->getEncryptionManager()->isEnabled();
+        if ($enabled) {
+            \OCP\Util::connectHook(Share::class, 'post_shared', HookManager::class, 'postShared');
+            \OCP\Util::connectHook(Share::class, 'post_unshare', HookManager::class, 'postUnshared');
+            \OCP\Util::connectHook('OC_Filesystem', 'post_rename', HookManager::class, 'postRename');
+            \OCP\Util::connectHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', HookManager::class, 'postRestore');
+        }
+    }
+
+    private static function registerAccountHooks() {
+        $hookHandler = new \OC\Accounts\Hooks(\OC::$server->getLogger());
+        \OCP\Util::connectHook('OC_User', 'changeUser', $hookHandler, 'changeUserHook');
+    }
+
+    /**
+     * register hooks for the filesystem
+     */
+    public static function registerFilesystemHooks() {
+        // Check for blacklisted files
+        OC_Hook::connect('OC_Filesystem', 'write', Filesystem::class, 'isBlacklisted');
+        OC_Hook::connect('OC_Filesystem', 'rename', Filesystem::class, 'isBlacklisted');
+    }
+
+    /**
+     * register hooks for sharing
+     */
+    public static function registerShareHooks() {
+        if (\OC::$server->getSystemConfig()->getValue('installed')) {
+            OC_Hook::connect('OC_User', 'post_deleteUser', Hooks::class, 'post_deleteUser');
+            OC_Hook::connect('OC_User', 'post_removeFromGroup', Hooks::class, 'post_removeFromGroup');
+            OC_Hook::connect('OC_User', 'post_deleteGroup', Hooks::class, 'post_deleteGroup');
+        }
+    }
+
+    protected static function registerAutoloaderCache() {
+        // The class loader takes an optional low-latency cache, which MUST be
+        // namespaced. The instanceid is used for namespacing, but might be
+        // unavailable at this point. Furthermore, it might not be possible to
+        // generate an instanceid via \OC_Util::getInstanceId() because the
+        // config file may not be writable. As such, we only register a class
+        // loader cache if instanceid is available without trying to create one.
+        $instanceId = \OC::$server->getSystemConfig()->getValue('instanceid', null);
+        if ($instanceId) {
+            try {
+                $memcacheFactory = \OC::$server->getMemCacheFactory();
+                self::$loader->setMemoryCache($memcacheFactory->createLocal('Autoloader'));
+            } catch (\Exception $ex) {
+            }
+        }
+    }
+
+    /**
+     * Handle the request
+     */
+    public static function handleRequest() {
+
+        \OC::$server->getEventLogger()->start('handle_request', 'Handle request');
+        $systemConfig = \OC::$server->getSystemConfig();
+        // load all the classpaths from the enabled apps so they are available
+        // in the routing files of each app
+        OC::loadAppClassPaths();
+
+        // Check if Nextcloud is installed or in maintenance (update) mode
+        if (!$systemConfig->getValue('installed', false)) {
+            \OC::$server->getSession()->clear();
+            $setupHelper = new OC\Setup(
+                $systemConfig,
+                \OC::$server->getIniWrapper(),
+                \OC::$server->getL10N('lib'),
+                \OC::$server->query(\OCP\Defaults::class),
+                \OC::$server->getLogger(),
+                \OC::$server->getSecureRandom(),
+                \OC::$server->query(\OC\Installer::class)
+            );
+            $controller = new OC\Core\Controller\SetupController($setupHelper);
+            $controller->run($_POST);
+            exit();
+        }
+
+        $request = \OC::$server->getRequest();
+        $requestPath = $request->getRawPathInfo();
+        if ($requestPath === '/heartbeat') {
+            return;
+        }
+        if (substr($requestPath, -3) !== '.js') { // we need these files during the upgrade
+            self::checkMaintenanceMode();
+
+            if (\OCP\Util::needUpgrade()) {
+                if (function_exists('opcache_reset')) {
+                    opcache_reset();
+                }
+                if (!$systemConfig->getValue('maintenance', false)) {
+                    self::printUpgradePage($systemConfig);
+                    exit();
+                }
+            }
+        }
+
+        // emergency app disabling
+        if ($requestPath === '/disableapp'
+            && $request->getMethod() === 'POST'
+            && ((array)$request->getParam('appid')) !== ''
+        ) {
+            \OC_JSON::callCheck();
+            \OC_JSON::checkAdminUser();
+            $appIds = (array)$request->getParam('appid');
+            foreach($appIds as $appId) {
+                $appId = \OC_App::cleanAppId($appId);
+                \OC::$server->getAppManager()->disableApp($appId);
+            }
+            \OC_JSON::success();
+            exit();
+        }
+
+        // Always load authentication apps
+        OC_App::loadApps(['authentication']);
+
+        // Load minimum set of apps
+        if (!\OCP\Util::needUpgrade()
+            && !$systemConfig->getValue('maintenance', false)) {
+            // For logged-in users: Load everything
+            if(\OC::$server->getUserSession()->isLoggedIn()) {
+                OC_App::loadApps();
+            } else {
+                // For guests: Load only filesystem and logging
+                OC_App::loadApps(array('filesystem', 'logging'));
+                self::handleLogin($request);
+            }
+        }
+
+        if (!self::$CLI) {
+            try {
+                if (!$systemConfig->getValue('maintenance', false) && !\OCP\Util::needUpgrade()) {
+                    OC_App::loadApps(array('filesystem', 'logging'));
+                    OC_App::loadApps();
+                }
+                OC_Util::setupFS();
+                OC::$server->getRouter()->match(\OC::$server->getRequest()->getRawPathInfo());
+                return;
+            } catch (Symfony\Component\Routing\Exception\ResourceNotFoundException $e) {
+                //header('HTTP/1.0 404 Not Found');
+            } catch (Symfony\Component\Routing\Exception\MethodNotAllowedException $e) {
+                OC_Response::setStatus(405);
+                return;
+            }
+        }
+
+        // Handle WebDAV
+        if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] === 'PROPFIND') {
+            // not allowed any more to prevent people
+            // mounting this root directly.
+            // Users need to mount remote.php/webdav instead.
+            header('HTTP/1.1 405 Method Not Allowed');
+            header('Status: 405 Method Not Allowed');
+            return;
+        }
+
+        // Someone is logged in
+        if (\OC::$server->getUserSession()->isLoggedIn()) {
+            OC_App::loadApps();
+            OC_User::setupBackends();
+            OC_Util::setupFS();
+            // FIXME
+            // Redirect to default application
+            OC_Util::redirectToDefaultPage();
+        } else {
+            // Not handled and not logged in
+            header('Location: '.\OC::$server->getURLGenerator()->linkToRouteAbsolute('core.login.showLoginForm'));
+        }
+    }
+
+    /**
+     * Check login: apache auth, auth token, basic auth
+     *
+     * @param OCP\IRequest $request
+     * @return boolean
+     */
+    static function handleLogin(OCP\IRequest $request) {
+        $userSession = self::$server->getUserSession();
+        if (OC_User::handleApacheAuth()) {
+            return true;
+        }
+        if ($userSession->tryTokenLogin($request)) {
+            return true;
+        }
+        if (isset($_COOKIE['nc_username'])
+            && isset($_COOKIE['nc_token'])
+            && isset($_COOKIE['nc_session_id'])
+            && $userSession->loginWithCookie($_COOKIE['nc_username'], $_COOKIE['nc_token'], $_COOKIE['nc_session_id'])) {
+            return true;
+        }
+        if ($userSession->tryBasicAuthLogin($request, \OC::$server->getBruteForceThrottler())) {
+            return true;
+        }
+        return false;
+    }
+
+    protected static function handleAuthHeaders() {
+        //copy http auth headers for apache+php-fcgid work around
+        if (isset($_SERVER['HTTP_XAUTHORIZATION']) && !isset($_SERVER['HTTP_AUTHORIZATION'])) {
+            $_SERVER['HTTP_AUTHORIZATION'] = $_SERVER['HTTP_XAUTHORIZATION'];
+        }
+
+        // Extract PHP_AUTH_USER/PHP_AUTH_PW from other headers if necessary.
+        $vars = array(
+            'HTTP_AUTHORIZATION', // apache+php-cgi work around
+            'REDIRECT_HTTP_AUTHORIZATION', // apache+php-cgi alternative
+        );
+        foreach ($vars as $var) {
+            if (isset($_SERVER[$var]) && preg_match('/Basic\s+(.*)$/i', $_SERVER[$var], $matches)) {
+                list($name, $password) = explode(':', base64_decode($matches[1]), 2);
+                $_SERVER['PHP_AUTH_USER'] = $name;
+                $_SERVER['PHP_AUTH_PW'] = $password;
+                break;
+            }
+        }
+    }
 }
 
 OC::init();

lib/autoloader.php

Indentation +147 added lines, -147 removed lines

@@ -37,151 +37,151 @@
 use OCP\ILogger;
 
 class Autoloader {
-	/** @var bool */
-	private $useGlobalClassPath = true;
-	/** @var array */
-	private $validRoots = [];
-
-	/**
-	 * Optional low-latency memory cache for class to path mapping.
-	 *
-	 * @var \OC\Memcache\Cache
-	 */
-	protected $memoryCache;
-
-	/**
-	 * Autoloader constructor.
-	 *
-	 * @param string[] $validRoots
-	 */
-	public function __construct(array $validRoots) {
-		foreach ($validRoots as $root) {
-			$this->validRoots[$root] = true;
-		}
-	}
-
-	/**
-	 * Add a path to the list of valid php roots for auto loading
-	 *
-	 * @param string $root
-	 */
-	public function addValidRoot(string $root) {
-		$root = stream_resolve_include_path($root);
-		$this->validRoots[$root] = true;
-	}
-
-	/**
-	 * disable the usage of the global classpath \OC::$CLASSPATH
-	 */
-	public function disableGlobalClassPath() {
-		$this->useGlobalClassPath = false;
-	}
-
-	/**
-	 * enable the usage of the global classpath \OC::$CLASSPATH
-	 */
-	public function enableGlobalClassPath() {
-		$this->useGlobalClassPath = true;
-	}
-
-	/**
-	 * get the possible paths for a class
-	 *
-	 * @param string $class
-	 * @return array an array of possible paths
-	 */
-	public function findClass(string $class): array {
-		$class = trim($class, '\\');
-
-		$paths = [];
-		if ($this->useGlobalClassPath && array_key_exists($class, \OC::$CLASSPATH)) {
-			$paths[] = \OC::$CLASSPATH[$class];
-			/**
-			 * @TODO: Remove this when necessary
-			 * Remove "apps/" from inclusion path for smooth migration to multi app dir
-			 */
-			if (strpos(\OC::$CLASSPATH[$class], 'apps/') === 0) {
-				\OCP\Util::writeLog('core', 'include path for class "' . $class . '" starts with "apps/"', ILogger::DEBUG);
-				$paths[] = str_replace('apps/', '', \OC::$CLASSPATH[$class]);
-			}
-		} elseif (strpos($class, 'OC_') === 0) {
-			$paths[] = \OC::$SERVERROOT . '/lib/private/legacy/' . strtolower(str_replace('_', '/', substr($class, 3)) . '.php');
-		} elseif (strpos($class, 'OCA\\') === 0) {
-			list(, $app, $rest) = explode('\\', $class, 3);
-			$app = strtolower($app);
-			$appPath = \OC_App::getAppPath($app);
-			if ($appPath && stream_resolve_include_path($appPath)) {
-				$paths[] = $appPath . '/' . strtolower(str_replace('\\', '/', $rest) . '.php');
-				// If not found in the root of the app directory, insert '/lib' after app id and try again.
-				$paths[] = $appPath . '/lib/' . strtolower(str_replace('\\', '/', $rest) . '.php');
-			}
-		} elseif ($class === 'Test\\TestCase') {
-			// This File is considered public API, so we make sure that the class
-			// can still be loaded, although the PSR-4 paths have not been loaded.
-			$paths[] = \OC::$SERVERROOT . '/tests/lib/TestCase.php';
-		}
-		return $paths;
-	}
-
-	/**
-	 * @param string $fullPath
-	 * @return bool
-	 * @throws AutoloadNotAllowedException
-	 */
-	protected function isValidPath(string $fullPath): bool {
-		foreach ($this->validRoots as $root => $true) {
-			if (substr($fullPath, 0, strlen($root) + 1) === $root . '/') {
-				return true;
-			}
-		}
-		throw new AutoloadNotAllowedException($fullPath);
-	}
-
-	/**
-	 * Load the specified class
-	 *
-	 * @param string $class
-	 * @return bool
-	 * @throws AutoloadNotAllowedException
-	 */
-	public function load(string $class): bool {
-		$pathsToRequire = null;
-		if ($this->memoryCache) {
-			$pathsToRequire = $this->memoryCache->get($class);
-		}
-
-		if(class_exists($class, false)) {
-			return false;
-		}
-
-		if (!is_array($pathsToRequire)) {
-			// No cache or cache miss
-			$pathsToRequire = array();
-			foreach ($this->findClass($class) as $path) {
-				$fullPath = stream_resolve_include_path($path);
-				if ($fullPath && $this->isValidPath($fullPath)) {
-					$pathsToRequire[] = $fullPath;
-				}
-			}
-
-			if ($this->memoryCache) {
-				$this->memoryCache->set($class, $pathsToRequire, 60); // cache 60 sec
-			}
-		}
-
-		foreach ($pathsToRequire as $fullPath) {
-			require_once $fullPath;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Sets the optional low-latency cache for class to path mapping.
-	 *
-	 * @param \OC\Memcache\Cache $memoryCache Instance of memory cache.
-	 */
-	public function setMemoryCache(\OC\Memcache\Cache $memoryCache = null) {
-		$this->memoryCache = $memoryCache;
-	}
+    /** @var bool */
+    private $useGlobalClassPath = true;
+    /** @var array */
+    private $validRoots = [];
+
+    /**
+     * Optional low-latency memory cache for class to path mapping.
+     *
+     * @var \OC\Memcache\Cache
+     */
+    protected $memoryCache;
+
+    /**
+     * Autoloader constructor.
+     *
+     * @param string[] $validRoots
+     */
+    public function __construct(array $validRoots) {
+        foreach ($validRoots as $root) {
+            $this->validRoots[$root] = true;
+        }
+    }
+
+    /**
+     * Add a path to the list of valid php roots for auto loading
+     *
+     * @param string $root
+     */
+    public function addValidRoot(string $root) {
+        $root = stream_resolve_include_path($root);
+        $this->validRoots[$root] = true;
+    }
+
+    /**
+     * disable the usage of the global classpath \OC::$CLASSPATH
+     */
+    public function disableGlobalClassPath() {
+        $this->useGlobalClassPath = false;
+    }
+
+    /**
+     * enable the usage of the global classpath \OC::$CLASSPATH
+     */
+    public function enableGlobalClassPath() {
+        $this->useGlobalClassPath = true;
+    }
+
+    /**
+     * get the possible paths for a class
+     *
+     * @param string $class
+     * @return array an array of possible paths
+     */
+    public function findClass(string $class): array {
+        $class = trim($class, '\\');
+
+        $paths = [];
+        if ($this->useGlobalClassPath && array_key_exists($class, \OC::$CLASSPATH)) {
+            $paths[] = \OC::$CLASSPATH[$class];
+            /**
+             * @TODO: Remove this when necessary
+             * Remove "apps/" from inclusion path for smooth migration to multi app dir
+             */
+            if (strpos(\OC::$CLASSPATH[$class], 'apps/') === 0) {
+                \OCP\Util::writeLog('core', 'include path for class "' . $class . '" starts with "apps/"', ILogger::DEBUG);
+                $paths[] = str_replace('apps/', '', \OC::$CLASSPATH[$class]);
+            }
+        } elseif (strpos($class, 'OC_') === 0) {
+            $paths[] = \OC::$SERVERROOT . '/lib/private/legacy/' . strtolower(str_replace('_', '/', substr($class, 3)) . '.php');
+        } elseif (strpos($class, 'OCA\\') === 0) {
+            list(, $app, $rest) = explode('\\', $class, 3);
+            $app = strtolower($app);
+            $appPath = \OC_App::getAppPath($app);
+            if ($appPath && stream_resolve_include_path($appPath)) {
+                $paths[] = $appPath . '/' . strtolower(str_replace('\\', '/', $rest) . '.php');
+                // If not found in the root of the app directory, insert '/lib' after app id and try again.
+                $paths[] = $appPath . '/lib/' . strtolower(str_replace('\\', '/', $rest) . '.php');
+            }
+        } elseif ($class === 'Test\\TestCase') {
+            // This File is considered public API, so we make sure that the class
+            // can still be loaded, although the PSR-4 paths have not been loaded.
+            $paths[] = \OC::$SERVERROOT . '/tests/lib/TestCase.php';
+        }
+        return $paths;
+    }
+
+    /**
+     * @param string $fullPath
+     * @return bool
+     * @throws AutoloadNotAllowedException
+     */
+    protected function isValidPath(string $fullPath): bool {
+        foreach ($this->validRoots as $root => $true) {
+            if (substr($fullPath, 0, strlen($root) + 1) === $root . '/') {
+                return true;
+            }
+        }
+        throw new AutoloadNotAllowedException($fullPath);
+    }
+
+    /**
+     * Load the specified class
+     *
+     * @param string $class
+     * @return bool
+     * @throws AutoloadNotAllowedException
+     */
+    public function load(string $class): bool {
+        $pathsToRequire = null;
+        if ($this->memoryCache) {
+            $pathsToRequire = $this->memoryCache->get($class);
+        }
+
+        if(class_exists($class, false)) {
+            return false;
+        }
+
+        if (!is_array($pathsToRequire)) {
+            // No cache or cache miss
+            $pathsToRequire = array();
+            foreach ($this->findClass($class) as $path) {
+                $fullPath = stream_resolve_include_path($path);
+                if ($fullPath && $this->isValidPath($fullPath)) {
+                    $pathsToRequire[] = $fullPath;
+                }
+            }
+
+            if ($this->memoryCache) {
+                $this->memoryCache->set($class, $pathsToRequire, 60); // cache 60 sec
+            }
+        }
+
+        foreach ($pathsToRequire as $fullPath) {
+            require_once $fullPath;
+        }
+
+        return false;
+    }
+
+    /**
+     * Sets the optional low-latency cache for class to path mapping.
+     *
+     * @param \OC\Memcache\Cache $memoryCache Instance of memory cache.
+     */
+    public function setMemoryCache(\OC\Memcache\Cache $memoryCache = null) {
+        $this->memoryCache = $memoryCache;
+    }
 }

lib/private/Log.php

Indentation +267 added lines, -267 removed lines

@@ -55,271 +55,271 @@
  */
 class Log implements ILogger {
 
-	/** @var IWriter */
-	private $logger;
-
-	/** @var SystemConfig */
-	private $config;
-
-	/** @var boolean|null cache the result of the log condition check for the request */
-	private $logConditionSatisfied = null;
-
-	/** @var Normalizer */
-	private $normalizer;
-
-	/** @var IRegistry */
-	private $crashReporters;
-
-	/**
-	 * @param IWriter $logger The logger that should be used
-	 * @param SystemConfig $config the system config object
-	 * @param Normalizer|null $normalizer
-	 * @param IRegistry|null $registry
-	 */
-	public function __construct(IWriter $logger, SystemConfig $config = null, $normalizer = null, IRegistry $registry = null) {
-		// FIXME: Add this for backwards compatibility, should be fixed at some point probably
-		if ($config === null) {
-			$config = \OC::$server->getSystemConfig();
-		}
-
-		$this->config = $config;
-		$this->logger = $logger;
-		if ($normalizer === null) {
-			$this->normalizer = new Normalizer();
-		} else {
-			$this->normalizer = $normalizer;
-		}
-		$this->crashReporters = $registry;
-	}
-
-	/**
-	 * System is unusable.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function emergency(string $message, array $context = []) {
-		$this->log(ILogger::FATAL, $message, $context);
-	}
-
-	/**
-	 * Action must be taken immediately.
-	 *
-	 * Example: Entire website down, database unavailable, etc. This should
-	 * trigger the SMS alerts and wake you up.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function alert(string $message, array $context = []) {
-		$this->log(ILogger::ERROR, $message, $context);
-	}
-
-	/**
-	 * Critical conditions.
-	 *
-	 * Example: Application component unavailable, unexpected exception.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function critical(string $message, array $context = []) {
-		$this->log(ILogger::ERROR, $message, $context);
-	}
-
-	/**
-	 * Runtime errors that do not require immediate action but should typically
-	 * be logged and monitored.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function error(string $message, array $context = []) {
-		$this->log(ILogger::ERROR, $message, $context);
-	}
-
-	/**
-	 * Exceptional occurrences that are not errors.
-	 *
-	 * Example: Use of deprecated APIs, poor use of an API, undesirable things
-	 * that are not necessarily wrong.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function warning(string $message, array $context = []) {
-		$this->log(ILogger::WARN, $message, $context);
-	}
-
-	/**
-	 * Normal but significant events.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function notice(string $message, array $context = []) {
-		$this->log(ILogger::INFO, $message, $context);
-	}
-
-	/**
-	 * Interesting events.
-	 *
-	 * Example: User logs in, SQL logs.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function info(string $message, array $context = []) {
-		$this->log(ILogger::INFO, $message, $context);
-	}
-
-	/**
-	 * Detailed debug information.
-	 *
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function debug(string $message, array $context = []) {
-		$this->log(ILogger::DEBUG, $message, $context);
-	}
-
-
-	/**
-	 * Logs with an arbitrary level.
-	 *
-	 * @param int $level
-	 * @param string $message
-	 * @param array $context
-	 * @return void
-	 */
-	public function log(int $level, string $message, array $context = []) {
-		$minLevel = $this->getLogLevel($context);
-
-		array_walk($context, [$this->normalizer, 'format']);
-
-		$app = $context['app'] ?? 'no app in context';
-
-		// interpolate $message as defined in PSR-3
-		$replace = [];
-		foreach ($context as $key => $val) {
-			$replace['{' . $key . '}'] = $val;
-		}
-		$message = strtr($message, $replace);
-
-		if ($level >= $minLevel) {
-			$this->writeLog($app, $message, $level);
-		}
-	}
-
-	private function getLogLevel($context) {
-		/**
-		 * check for a special log condition - this enables an increased log on
-		 * a per request/user base
-		 */
-		if ($this->logConditionSatisfied === null) {
-			// default to false to just process this once per request
-			$this->logConditionSatisfied = false;
-			if (!empty($logCondition)) {
-
-				// check for secret token in the request
-				if (isset($logCondition['shared_secret'])) {
-					$request = \OC::$server->getRequest();
-
-					// if token is found in the request change set the log condition to satisfied
-					if ($request && hash_equals($logCondition['shared_secret'], $request->getParam('log_secret', ''))) {
-						$this->logConditionSatisfied = true;
-					}
-				}
-
-				// check for user
-				if (isset($logCondition['users'])) {
-					$user = \OC::$server->getUserSession()->getUser();
-
-					// if the user matches set the log condition to satisfied
-					if ($user !== null && in_array($user->getUID(), $logCondition['users'], true)) {
-						$this->logConditionSatisfied = true;
-					}
-				}
-			}
-		}
-
-		// if log condition is satisfied change the required log level to DEBUG
-		if ($this->logConditionSatisfied) {
-			return ILogger::DEBUG;
-		}
-
-		if (isset($context['app'])) {
-			$logCondition = $this->config->getValue('log.condition', []);
-			$app = $context['app'];
-
-			/**
-			 * check log condition based on the context of each log message
-			 * once this is met -> change the required log level to debug
-			 */
-			if (!empty($logCondition)
-				&& isset($logCondition['apps'])
-				&& in_array($app, $logCondition['apps'], true)) {
-				return ILogger::DEBUG;
-			}
-		}
-
-		return min($this->config->getValue('loglevel', ILogger::WARN), ILogger::FATAL);
-	}
-
-	/**
-	 * Logs an exception very detailed
-	 *
-	 * @param \Exception|\Throwable $exception
-	 * @param array $context
-	 * @return void
-	 * @since 8.2.0
-	 */
-	public function logException(\Throwable $exception, array $context = []) {
-		$app = $context['app'] ?? 'no app in context';
-		$level = $context['level'] ?? ILogger::ERROR;
-
-		$serializer = new ExceptionSerializer();
-		$data = $serializer->serializeException($exception);
-		$data['CustomMessage'] = $context['message'] ?? '--';
-
-		$minLevel = $this->getLogLevel($context);
-
-		array_walk($context, [$this->normalizer, 'format']);
-
-		if ($level >= $minLevel) {
-			if (!$this->logger instanceof IFileBased) {
-				$data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR);
-			}
-			$this->writeLog($app, $data, $level);
-		}
-
-		$context['level'] = $level;
-		if (!is_null($this->crashReporters)) {
-			$this->crashReporters->delegateReport($exception, $context);
-		}
-	}
-
-	/**
-	 * @param string $app
-	 * @param string|array $entry
-	 * @param int $level
-	 */
-	protected function writeLog(string $app, $entry, int $level) {
-		$this->logger->write($app, $entry, $level);
-	}
-
-	public function getLogPath():string {
-		if($this->logger instanceof IFileBased) {
-			return $this->logger->getLogFilePath();
-		}
-		throw new \RuntimeException('Log implementation has no path');
-	}
+    /** @var IWriter */
+    private $logger;
+
+    /** @var SystemConfig */
+    private $config;
+
+    /** @var boolean|null cache the result of the log condition check for the request */
+    private $logConditionSatisfied = null;
+
+    /** @var Normalizer */
+    private $normalizer;
+
+    /** @var IRegistry */
+    private $crashReporters;
+
+    /**
+     * @param IWriter $logger The logger that should be used
+     * @param SystemConfig $config the system config object
+     * @param Normalizer|null $normalizer
+     * @param IRegistry|null $registry
+     */
+    public function __construct(IWriter $logger, SystemConfig $config = null, $normalizer = null, IRegistry $registry = null) {
+        // FIXME: Add this for backwards compatibility, should be fixed at some point probably
+        if ($config === null) {
+            $config = \OC::$server->getSystemConfig();
+        }
+
+        $this->config = $config;
+        $this->logger = $logger;
+        if ($normalizer === null) {
+            $this->normalizer = new Normalizer();
+        } else {
+            $this->normalizer = $normalizer;
+        }
+        $this->crashReporters = $registry;
+    }
+
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function emergency(string $message, array $context = []) {
+        $this->log(ILogger::FATAL, $message, $context);
+    }
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function alert(string $message, array $context = []) {
+        $this->log(ILogger::ERROR, $message, $context);
+    }
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function critical(string $message, array $context = []) {
+        $this->log(ILogger::ERROR, $message, $context);
+    }
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function error(string $message, array $context = []) {
+        $this->log(ILogger::ERROR, $message, $context);
+    }
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function warning(string $message, array $context = []) {
+        $this->log(ILogger::WARN, $message, $context);
+    }
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function notice(string $message, array $context = []) {
+        $this->log(ILogger::INFO, $message, $context);
+    }
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function info(string $message, array $context = []) {
+        $this->log(ILogger::INFO, $message, $context);
+    }
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function debug(string $message, array $context = []) {
+        $this->log(ILogger::DEBUG, $message, $context);
+    }
+
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param int $level
+     * @param string $message
+     * @param array $context
+     * @return void
+     */
+    public function log(int $level, string $message, array $context = []) {
+        $minLevel = $this->getLogLevel($context);
+
+        array_walk($context, [$this->normalizer, 'format']);
+
+        $app = $context['app'] ?? 'no app in context';
+
+        // interpolate $message as defined in PSR-3
+        $replace = [];
+        foreach ($context as $key => $val) {
+            $replace['{' . $key . '}'] = $val;
+        }
+        $message = strtr($message, $replace);
+
+        if ($level >= $minLevel) {
+            $this->writeLog($app, $message, $level);
+        }
+    }
+
+    private function getLogLevel($context) {
+        /**
+         * check for a special log condition - this enables an increased log on
+         * a per request/user base
+         */
+        if ($this->logConditionSatisfied === null) {
+            // default to false to just process this once per request
+            $this->logConditionSatisfied = false;
+            if (!empty($logCondition)) {
+
+                // check for secret token in the request
+                if (isset($logCondition['shared_secret'])) {
+                    $request = \OC::$server->getRequest();
+
+                    // if token is found in the request change set the log condition to satisfied
+                    if ($request && hash_equals($logCondition['shared_secret'], $request->getParam('log_secret', ''))) {
+                        $this->logConditionSatisfied = true;
+                    }
+                }
+
+                // check for user
+                if (isset($logCondition['users'])) {
+                    $user = \OC::$server->getUserSession()->getUser();
+
+                    // if the user matches set the log condition to satisfied
+                    if ($user !== null && in_array($user->getUID(), $logCondition['users'], true)) {
+                        $this->logConditionSatisfied = true;
+                    }
+                }
+            }
+        }
+
+        // if log condition is satisfied change the required log level to DEBUG
+        if ($this->logConditionSatisfied) {
+            return ILogger::DEBUG;
+        }
+
+        if (isset($context['app'])) {
+            $logCondition = $this->config->getValue('log.condition', []);
+            $app = $context['app'];
+
+            /**
+             * check log condition based on the context of each log message
+             * once this is met -> change the required log level to debug
+             */
+            if (!empty($logCondition)
+                && isset($logCondition['apps'])
+                && in_array($app, $logCondition['apps'], true)) {
+                return ILogger::DEBUG;
+            }
+        }
+
+        return min($this->config->getValue('loglevel', ILogger::WARN), ILogger::FATAL);
+    }
+
+    /**
+     * Logs an exception very detailed
+     *
+     * @param \Exception|\Throwable $exception
+     * @param array $context
+     * @return void
+     * @since 8.2.0
+     */
+    public function logException(\Throwable $exception, array $context = []) {
+        $app = $context['app'] ?? 'no app in context';
+        $level = $context['level'] ?? ILogger::ERROR;
+
+        $serializer = new ExceptionSerializer();
+        $data = $serializer->serializeException($exception);
+        $data['CustomMessage'] = $context['message'] ?? '--';
+
+        $minLevel = $this->getLogLevel($context);
+
+        array_walk($context, [$this->normalizer, 'format']);
+
+        if ($level >= $minLevel) {
+            if (!$this->logger instanceof IFileBased) {
+                $data = json_encode($data, JSON_PARTIAL_OUTPUT_ON_ERROR);
+            }
+            $this->writeLog($app, $data, $level);
+        }
+
+        $context['level'] = $level;
+        if (!is_null($this->crashReporters)) {
+            $this->crashReporters->delegateReport($exception, $context);
+        }
+    }
+
+    /**
+     * @param string $app
+     * @param string|array $entry
+     * @param int $level
+     */
+    protected function writeLog(string $app, $entry, int $level) {
+        $this->logger->write($app, $entry, $level);
+    }
+
+    public function getLogPath():string {
+        if($this->logger instanceof IFileBased) {
+            return $this->logger->getLogFilePath();
+        }
+        throw new \RuntimeException('Log implementation has no path');
+    }
 }

lib/private/DateTimeZone.php

Indentation +86 added lines, -86 removed lines

@@ -30,100 +30,100 @@
 use OCP\ISession;
 
 class DateTimeZone implements IDateTimeZone {
-	/** @var IConfig */
-	protected $config;
+    /** @var IConfig */
+    protected $config;
 
-	/** @var ISession */
-	protected $session;
+    /** @var ISession */
+    protected $session;
 
-	/**
-	 * Constructor
-	 *
-	 * @param IConfig $config
-	 * @param ISession $session
-	 */
-	public function __construct(IConfig $config, ISession $session) {
-		$this->config = $config;
-		$this->session = $session;
-	}
+    /**
+     * Constructor
+     *
+     * @param IConfig $config
+     * @param ISession $session
+     */
+    public function __construct(IConfig $config, ISession $session) {
+        $this->config = $config;
+        $this->session = $session;
+    }
 
-	/**
-	 * Get the timezone of the current user, based on his session information and config data
-	 *
-	 * @param bool|int $timestamp
-	 * @return \DateTimeZone
-	 */
-	public function getTimeZone($timestamp = false) {
-		$timeZone = $this->config->getUserValue($this->session->get('user_id'), 'core', 'timezone', null);
-		if ($timeZone === null) {
-			if ($this->session->exists('timezone')) {
-				return $this->guessTimeZoneFromOffset($this->session->get('timezone'), $timestamp);
-			}
-			$timeZone = $this->getDefaultTimeZone();
-		}
+    /**
+     * Get the timezone of the current user, based on his session information and config data
+     *
+     * @param bool|int $timestamp
+     * @return \DateTimeZone
+     */
+    public function getTimeZone($timestamp = false) {
+        $timeZone = $this->config->getUserValue($this->session->get('user_id'), 'core', 'timezone', null);
+        if ($timeZone === null) {
+            if ($this->session->exists('timezone')) {
+                return $this->guessTimeZoneFromOffset($this->session->get('timezone'), $timestamp);
+            }
+            $timeZone = $this->getDefaultTimeZone();
+        }
 
-		try {
-			return new \DateTimeZone($timeZone);
-		} catch (\Exception $e) {
-			\OCP\Util::writeLog('datetimezone', 'Failed to created DateTimeZone "' . $timeZone . "'", ILogger::DEBUG);
-			return new \DateTimeZone($this->getDefaultTimeZone());
-		}
-	}
+        try {
+            return new \DateTimeZone($timeZone);
+        } catch (\Exception $e) {
+            \OCP\Util::writeLog('datetimezone', 'Failed to created DateTimeZone "' . $timeZone . "'", ILogger::DEBUG);
+            return new \DateTimeZone($this->getDefaultTimeZone());
+        }
+    }
 
-	/**
-	 * Guess the DateTimeZone for a given offset
-	 *
-	 * We first try to find a Etc/GMT* timezone, if that does not exist,
-	 * we try to find it manually, before falling back to UTC.
-	 *
-	 * @param mixed $offset
-	 * @param bool|int $timestamp
-	 * @return \DateTimeZone
-	 */
-	protected function guessTimeZoneFromOffset($offset, $timestamp) {
-		try {
-			// Note: the timeZone name is the inverse to the offset,
-			// so a positive offset means negative timeZone
-			// and the other way around.
-			if ($offset > 0) {
-				$timeZone = 'Etc/GMT-' . $offset;
-			} else {
-				$timeZone = 'Etc/GMT+' . abs($offset);
-			}
+    /**
+     * Guess the DateTimeZone for a given offset
+     *
+     * We first try to find a Etc/GMT* timezone, if that does not exist,
+     * we try to find it manually, before falling back to UTC.
+     *
+     * @param mixed $offset
+     * @param bool|int $timestamp
+     * @return \DateTimeZone
+     */
+    protected function guessTimeZoneFromOffset($offset, $timestamp) {
+        try {
+            // Note: the timeZone name is the inverse to the offset,
+            // so a positive offset means negative timeZone
+            // and the other way around.
+            if ($offset > 0) {
+                $timeZone = 'Etc/GMT-' . $offset;
+            } else {
+                $timeZone = 'Etc/GMT+' . abs($offset);
+            }
 
-			return new \DateTimeZone($timeZone);
-		} catch (\Exception $e) {
-			// If the offset has no Etc/GMT* timezone,
-			// we try to guess one timezone that has the same offset
-			foreach (\DateTimeZone::listIdentifiers() as $timeZone) {
-				$dtz = new \DateTimeZone($timeZone);
-				$dateTime = new \DateTime();
+            return new \DateTimeZone($timeZone);
+        } catch (\Exception $e) {
+            // If the offset has no Etc/GMT* timezone,
+            // we try to guess one timezone that has the same offset
+            foreach (\DateTimeZone::listIdentifiers() as $timeZone) {
+                $dtz = new \DateTimeZone($timeZone);
+                $dateTime = new \DateTime();
 
-				if ($timestamp !== false) {
-					$dateTime->setTimestamp($timestamp);
-				}
+                if ($timestamp !== false) {
+                    $dateTime->setTimestamp($timestamp);
+                }
 
-				$dtOffset = $dtz->getOffset($dateTime);
-				if ($dtOffset == 3600 * $offset) {
-					return $dtz;
-				}
-			}
+                $dtOffset = $dtz->getOffset($dateTime);
+                if ($dtOffset == 3600 * $offset) {
+                    return $dtz;
+                }
+            }
 
-			// No timezone found, fallback to UTC
-			\OCP\Util::writeLog('datetimezone', 'Failed to find DateTimeZone for offset "' . $offset . "'", ILogger::DEBUG);
-			return new \DateTimeZone($this->getDefaultTimeZone());
-		}
-	}
+            // No timezone found, fallback to UTC
+            \OCP\Util::writeLog('datetimezone', 'Failed to find DateTimeZone for offset "' . $offset . "'", ILogger::DEBUG);
+            return new \DateTimeZone($this->getDefaultTimeZone());
+        }
+    }
 
-	/**
-	 * Get the default timezone of the server
-	 *
-	 * Falls back to UTC if it is not yet set.
-	 * 
-	 * @return string
-	 */
-	protected function getDefaultTimeZone() {
-		$serverTimeZone = date_default_timezone_get();
-		return $serverTimeZone ?: 'UTC';
-	}
+    /**
+     * Get the default timezone of the server
+     *
+     * Falls back to UTC if it is not yet set.
+     * 
+     * @return string
+     */
+    protected function getDefaultTimeZone() {
+        $serverTimeZone = date_default_timezone_get();
+        return $serverTimeZone ?: 'UTC';
+    }
 }

lib/private/Tags.php

Indentation +803 added lines, -803 removed lines

@@ -51,807 +51,807 @@
 
 class Tags implements \OCP\ITags {
 
-	/**
-	 * Tags
-	 *
-	 * @var array
-	 */
-	private $tags = array();
-
-	/**
-	 * Used for storing objectid/categoryname pairs while rescanning.
-	 *
-	 * @var array
-	 */
-	private static $relations = array();
-
-	/**
-	 * Type
-	 *
-	 * @var string
-	 */
-	private $type;
-
-	/**
-	 * User
-	 *
-	 * @var string
-	 */
-	private $user;
-
-	/**
-	 * Are we including tags for shared items?
-	 *
-	 * @var bool
-	 */
-	private $includeShared = false;
-
-	/**
-	 * The current user, plus any owners of the items shared with the current
-	 * user, if $this->includeShared === true.
-	 *
-	 * @var array
-	 */
-	private $owners = array();
-
-	/**
-	 * The Mapper we're using to communicate our Tag objects to the database.
-	 *
-	 * @var TagMapper
-	 */
-	private $mapper;
-
-	/**
-	 * The sharing backend for objects of $this->type. Required if
-	 * $this->includeShared === true to determine ownership of items.
-	 *
-	 * @var \OCP\Share_Backend
-	 */
-	private $backend;
-
-	const TAG_TABLE = '*PREFIX*vcategory';
-	const RELATION_TABLE = '*PREFIX*vcategory_to_object';
-
-	const TAG_FAVORITE = '_$!<Favorite>!$_';
-
-	/**
-	* Constructor.
-	*
-	* @param TagMapper $mapper Instance of the TagMapper abstraction layer.
-	* @param string $user The user whose data the object will operate on.
-	* @param string $type The type of items for which tags will be loaded.
-	* @param array $defaultTags Tags that should be created at construction.
-	* @param boolean $includeShared Whether to include tags for items shared with this user by others.
-	*/
-	public function __construct(TagMapper $mapper, $user, $type, $defaultTags = array(), $includeShared = false) {
-		$this->mapper = $mapper;
-		$this->user = $user;
-		$this->type = $type;
-		$this->includeShared = $includeShared;
-		$this->owners = array($this->user);
-		if ($this->includeShared) {
-			$this->owners = array_merge($this->owners, \OC\Share\Share::getSharedItemsOwners($this->user, $this->type, true));
-			$this->backend = \OC\Share\Share::getBackend($this->type);
-		}
-		$this->tags = $this->mapper->loadTags($this->owners, $this->type);
-
-		if(count($defaultTags) > 0 && count($this->tags) === 0) {
-			$this->addMultiple($defaultTags, true);
-		}
-	}
-
-	/**
-	* Check if any tags are saved for this type and user.
-	*
-	* @return boolean
-	*/
-	public function isEmpty() {
-		return count($this->tags) === 0;
-	}
-
-	/**
-	* Returns an array mapping a given tag's properties to its values:
-	* ['id' => 0, 'name' = 'Tag', 'owner' = 'User', 'type' => 'tagtype']
-	*
-	* @param string $id The ID of the tag that is going to be mapped
-	* @return array|false
-	*/
-	public function getTag($id) {
-		$key = $this->getTagById($id);
-		if ($key !== false) {
-			return $this->tagMap($this->tags[$key]);
-		}
-		return false;
-	}
-
-	/**
-	* Get the tags for a specific user.
-	*
-	* This returns an array with maps containing each tag's properties:
-	* [
-	* 	['id' => 0, 'name' = 'First tag', 'owner' = 'User', 'type' => 'tagtype'],
-	* 	['id' => 1, 'name' = 'Shared tag', 'owner' = 'Other user', 'type' => 'tagtype'],
-	* ]
-	*
-	* @return array
-	*/
-	public function getTags() {
-		if(!count($this->tags)) {
-			return array();
-		}
-
-		usort($this->tags, function($a, $b) {
-			return strnatcasecmp($a->getName(), $b->getName());
-		});
-		$tagMap = array();
-
-		foreach($this->tags as $tag) {
-			if($tag->getName() !== self::TAG_FAVORITE) {
-				$tagMap[] = $this->tagMap($tag);
-			}
-		}
-		return $tagMap;
-
-	}
-
-	/**
-	* Return only the tags owned by the given user, omitting any tags shared
-	* by other users.
-	*
-	* @param string $user The user whose tags are to be checked.
-	* @return array An array of Tag objects.
-	*/
-	public function getTagsForUser($user) {
-		return array_filter($this->tags,
-			function($tag) use($user) {
-				return $tag->getOwner() === $user;
-			}
-		);
-	}
-
-	/**
-	 * Get the list of tags for the given ids.
-	 *
-	 * @param array $objIds array of object ids
-	 * @return array|boolean of tags id as key to array of tag names
-	 * or false if an error occurred
-	 */
-	public function getTagsForObjects(array $objIds) {
-		$entries = array();
-
-		try {
-			$conn = \OC::$server->getDatabaseConnection();
-			$chunks = array_chunk($objIds, 900, false);
-			foreach ($chunks as $chunk) {
-				$result = $conn->executeQuery(
-					'SELECT `category`, `categoryid`, `objid` ' .
-					'FROM `' . self::RELATION_TABLE . '` r, `' . self::TAG_TABLE . '` ' .
-					'WHERE `categoryid` = `id` AND `uid` = ? AND r.`type` = ? AND `objid` IN (?)',
-					array($this->user, $this->type, $chunk),
-					array(null, null, IQueryBuilder::PARAM_INT_ARRAY)
-				);
-				while ($row = $result->fetch()) {
-					$objId = (int)$row['objid'];
-					if (!isset($entries[$objId])) {
-						$entries[$objId] = array();
-					}
-					$entries[$objId][] = $row['category'];
-				}
-				if ($result === null) {
-					\OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
-					return false;
-				}
-			}
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-
-		return $entries;
-	}
-
-	/**
-	* Get the a list if items tagged with $tag.
-	*
-	* Throws an exception if the tag could not be found.
-	*
-	* @param string $tag Tag id or name.
-	* @return array|false An array of object ids or false on error.
-	* @throws \Exception
-	*/
-	public function getIdsForTag($tag) {
-		$result = null;
-		$tagId = false;
-		if(is_numeric($tag)) {
-			$tagId = $tag;
-		} elseif(is_string($tag)) {
-			$tag = trim($tag);
-			if($tag === '') {
-				\OCP\Util::writeLog('core', __METHOD__.', Cannot use empty tag names', ILogger::DEBUG);
-				return false;
-			}
-			$tagId = $this->getTagId($tag);
-		}
-
-		if($tagId === false) {
-			$l10n = \OC::$server->getL10N('core');
-			throw new \Exception(
-				$l10n->t('Could not find category "%s"', [$tag])
-			);
-		}
-
-		$ids = array();
-		$sql = 'SELECT `objid` FROM `' . self::RELATION_TABLE
-			. '` WHERE `categoryid` = ?';
-
-		try {
-			$stmt = \OC_DB::prepare($sql);
-			$result = $stmt->execute(array($tagId));
-			if ($result === null) {
-				\OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
-				return false;
-			}
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-
-		if(!is_null($result)) {
-			while( $row = $result->fetchRow()) {
-				$id = (int)$row['objid'];
-
-				if ($this->includeShared) {
-					// We have to check if we are really allowed to access the
-					// items that are tagged with $tag. To that end, we ask the
-					// corresponding sharing backend if the item identified by $id
-					// is owned by any of $this->owners.
-					foreach ($this->owners as $owner) {
-						if ($this->backend->isValidSource($id, $owner)) {
-							$ids[] = $id;
-							break;
-						}
-					}
-				} else {
-					$ids[] = $id;
-				}
-			}
-		}
-
-		return $ids;
-	}
-
-	/**
-	* Checks whether a tag is saved for the given user,
-	* disregarding the ones shared with him or her.
-	*
-	* @param string $name The tag name to check for.
-	* @param string $user The user whose tags are to be checked.
-	* @return bool
-	*/
-	public function userHasTag($name, $user) {
-		$key = $this->array_searchi($name, $this->getTagsForUser($user));
-		return ($key !== false) ? $this->tags[$key]->getId() : false;
-	}
-
-	/**
-	* Checks whether a tag is saved for or shared with the current user.
-	*
-	* @param string $name The tag name to check for.
-	* @return bool
-	*/
-	public function hasTag($name) {
-		return $this->getTagId($name) !== false;
-	}
-
-	/**
-	* Add a new tag.
-	*
-	* @param string $name A string with a name of the tag
-	* @return false|int the id of the added tag or false on error.
-	*/
-	public function add($name) {
-		$name = trim($name);
-
-		if($name === '') {
-			\OCP\Util::writeLog('core', __METHOD__.', Cannot add an empty tag', ILogger::DEBUG);
-			return false;
-		}
-		if($this->userHasTag($name, $this->user)) {
-			\OCP\Util::writeLog('core', __METHOD__.', name: ' . $name. ' exists already', ILogger::DEBUG);
-			return false;
-		}
-		try {
-			$tag = new Tag($this->user, $this->type, $name);
-			$tag = $this->mapper->insert($tag);
-			$this->tags[] = $tag;
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-		\OCP\Util::writeLog('core', __METHOD__.', id: ' . $tag->getId(), ILogger::DEBUG);
-		return $tag->getId();
-	}
-
-	/**
-	* Rename tag.
-	*
-	* @param string|integer $from The name or ID of the existing tag
-	* @param string $to The new name of the tag.
-	* @return bool
-	*/
-	public function rename($from, $to) {
-		$from = trim($from);
-		$to = trim($to);
-
-		if($to === '' || $from === '') {
-			\OCP\Util::writeLog('core', __METHOD__.', Cannot use empty tag names', ILogger::DEBUG);
-			return false;
-		}
-
-		if (is_numeric($from)) {
-			$key = $this->getTagById($from);
-		} else {
-			$key = $this->getTagByName($from);
-		}
-		if($key === false) {
-			\OCP\Util::writeLog('core', __METHOD__.', tag: ' . $from. ' does not exist', ILogger::DEBUG);
-			return false;
-		}
-		$tag = $this->tags[$key];
-
-		if($this->userHasTag($to, $tag->getOwner())) {
-			\OCP\Util::writeLog('core', __METHOD__.', A tag named ' . $to. ' already exists for user ' . $tag->getOwner() . '.', ILogger::DEBUG);
-			return false;
-		}
-
-		try {
-			$tag->setName($to);
-			$this->tags[$key] = $this->mapper->update($tag);
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	* Add a list of new tags.
-	*
-	* @param string[] $names A string with a name or an array of strings containing
-	* the name(s) of the tag(s) to add.
-	* @param bool $sync When true, save the tags
-	* @param int|null $id int Optional object id to add to this|these tag(s)
-	* @return bool Returns false on error.
-	*/
-	public function addMultiple($names, $sync=false, $id = null) {
-		if(!is_array($names)) {
-			$names = array($names);
-		}
-		$names = array_map('trim', $names);
-		array_filter($names);
-
-		$newones = array();
-		foreach($names as $name) {
-			if(!$this->hasTag($name) && $name !== '') {
-				$newones[] = new Tag($this->user, $this->type, $name);
-			}
-			if(!is_null($id) ) {
-				// Insert $objectid, $categoryid  pairs if not exist.
-				self::$relations[] = array('objid' => $id, 'tag' => $name);
-			}
-		}
-		$this->tags = array_merge($this->tags, $newones);
-		if($sync === true) {
-			$this->save();
-		}
-
-		return true;
-	}
-
-	/**
-	 * Save the list of tags and their object relations
-	 */
-	protected function save() {
-		if(is_array($this->tags)) {
-			foreach($this->tags as $tag) {
-				try {
-					if (!$this->mapper->tagExists($tag)) {
-						$this->mapper->insert($tag);
-					}
-				} catch(\Exception $e) {
-					\OC::$server->getLogger()->logException($e, [
-						'message' => __METHOD__,
-						'level' => ILogger::ERROR,
-						'app' => 'core',
-					]);
-				}
-			}
-
-			// reload tags to get the proper ids.
-			$this->tags = $this->mapper->loadTags($this->owners, $this->type);
-			\OCP\Util::writeLog('core', __METHOD__.', tags: ' . print_r($this->tags, true),
-				ILogger::DEBUG);
-			// Loop through temporarily cached objectid/tagname pairs
-			// and save relations.
-			$tags = $this->tags;
-			// For some reason this is needed or array_search(i) will return 0..?
-			ksort($tags);
-			$dbConnection = \OC::$server->getDatabaseConnection();
-			foreach(self::$relations as $relation) {
-				$tagId = $this->getTagId($relation['tag']);
-				\OCP\Util::writeLog('core', __METHOD__ . 'catid, ' . $relation['tag'] . ' ' . $tagId, ILogger::DEBUG);
-				if($tagId) {
-					try {
-						$dbConnection->insertIfNotExist(self::RELATION_TABLE,
-							array(
-								'objid' => $relation['objid'],
-								'categoryid' => $tagId,
-								'type' => $this->type,
-								));
-					} catch(\Exception $e) {
-						\OC::$server->getLogger()->logException($e, [
-							'message' => __METHOD__,
-							'level' => ILogger::ERROR,
-							'app' => 'core',
-						]);
-					}
-				}
-			}
-			self::$relations = array(); // reset
-		} else {
-			\OCP\Util::writeLog('core', __METHOD__.', $this->tags is not an array! '
-				. print_r($this->tags, true), ILogger::ERROR);
-		}
-	}
-
-	/**
-	* Delete tags and tag/object relations for a user.
-	*
-	* For hooking up on post_deleteUser
-	*
-	* @param array $arguments
-	*/
-	public static function post_deleteUser($arguments) {
-		// Find all objectid/tagId pairs.
-		$result = null;
-		try {
-			$stmt = \OC_DB::prepare('SELECT `id` FROM `' . self::TAG_TABLE . '` '
-				. 'WHERE `uid` = ?');
-			$result = $stmt->execute(array($arguments['uid']));
-			if ($result === null) {
-				\OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
-			}
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-		}
-
-		if(!is_null($result)) {
-			try {
-				$stmt = \OC_DB::prepare('DELETE FROM `' . self::RELATION_TABLE . '` '
-					. 'WHERE `categoryid` = ?');
-				while( $row = $result->fetchRow()) {
-					try {
-						$stmt->execute(array($row['id']));
-					} catch(\Exception $e) {
-						\OC::$server->getLogger()->logException($e, [
-							'message' => __METHOD__,
-							'level' => ILogger::ERROR,
-							'app' => 'core',
-						]);
-					}
-				}
-			} catch(\Exception $e) {
-				\OC::$server->getLogger()->logException($e, [
-					'message' => __METHOD__,
-					'level' => ILogger::ERROR,
-					'app' => 'core',
-				]);
-			}
-		}
-		try {
-			$stmt = \OC_DB::prepare('DELETE FROM `' . self::TAG_TABLE . '` '
-				. 'WHERE `uid` = ?');
-			$result = $stmt->execute(array($arguments['uid']));
-			if ($result === null) {
-				\OCP\Util::writeLog('core', __METHOD__. ', DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
-			}
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-		}
-	}
-
-	/**
-	* Delete tag/object relations from the db
-	*
-	* @param array $ids The ids of the objects
-	* @return boolean Returns false on error.
-	*/
-	public function purgeObjects(array $ids) {
-		if(count($ids) === 0) {
-			// job done ;)
-			return true;
-		}
-		$updates = $ids;
-		try {
-			$query = 'DELETE FROM `' . self::RELATION_TABLE . '` ';
-			$query .= 'WHERE `objid` IN (' . str_repeat('?,', count($ids)-1) . '?) ';
-			$query .= 'AND `type`= ?';
-			$updates[] = $this->type;
-			$stmt = \OC_DB::prepare($query);
-			$result = $stmt->execute($updates);
-			if ($result === null) {
-				\OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
-				return false;
-			}
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	* Get favorites for an object type
-	*
-	* @return array|false An array of object ids.
-	*/
-	public function getFavorites() {
-		try {
-			return $this->getIdsForTag(self::TAG_FAVORITE);
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return array();
-		}
-	}
-
-	/**
-	* Add an object to favorites
-	*
-	* @param int $objid The id of the object
-	* @return boolean
-	*/
-	public function addToFavorites($objid) {
-		if(!$this->userHasTag(self::TAG_FAVORITE, $this->user)) {
-			$this->add(self::TAG_FAVORITE);
-		}
-		return $this->tagAs($objid, self::TAG_FAVORITE);
-	}
-
-	/**
-	* Remove an object from favorites
-	*
-	* @param int $objid The id of the object
-	* @return boolean
-	*/
-	public function removeFromFavorites($objid) {
-		return $this->unTag($objid, self::TAG_FAVORITE);
-	}
-
-	/**
-	* Creates a tag/object relation.
-	*
-	* @param int $objid The id of the object
-	* @param string $tag The id or name of the tag
-	* @return boolean Returns false on error.
-	*/
-	public function tagAs($objid, $tag) {
-		if(is_string($tag) && !is_numeric($tag)) {
-			$tag = trim($tag);
-			if($tag === '') {
-				\OCP\Util::writeLog('core', __METHOD__.', Cannot add an empty tag', ILogger::DEBUG);
-				return false;
-			}
-			if(!$this->hasTag($tag)) {
-				$this->add($tag);
-			}
-			$tagId =  $this->getTagId($tag);
-		} else {
-			$tagId = $tag;
-		}
-		try {
-			\OC::$server->getDatabaseConnection()->insertIfNotExist(self::RELATION_TABLE,
-				array(
-					'objid' => $objid,
-					'categoryid' => $tagId,
-					'type' => $this->type,
-				));
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	* Delete single tag/object relation from the db
-	*
-	* @param int $objid The id of the object
-	* @param string $tag The id or name of the tag
-	* @return boolean
-	*/
-	public function unTag($objid, $tag) {
-		if(is_string($tag) && !is_numeric($tag)) {
-			$tag = trim($tag);
-			if($tag === '') {
-				\OCP\Util::writeLog('core', __METHOD__.', Tag name is empty', ILogger::DEBUG);
-				return false;
-			}
-			$tagId =  $this->getTagId($tag);
-		} else {
-			$tagId = $tag;
-		}
-
-		try {
-			$sql = 'DELETE FROM `' . self::RELATION_TABLE . '` '
-					. 'WHERE `objid` = ? AND `categoryid` = ? AND `type` = ?';
-			$stmt = \OC_DB::prepare($sql);
-			$stmt->execute(array($objid, $tagId, $this->type));
-		} catch(\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => __METHOD__,
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	* Delete tags from the database.
-	*
-	* @param string[]|integer[] $names An array of tags (names or IDs) to delete
-	* @return bool Returns false on error
-	*/
-	public function delete($names) {
-		if(!is_array($names)) {
-			$names = array($names);
-		}
-
-		$names = array_map('trim', $names);
-		array_filter($names);
-
-		\OCP\Util::writeLog('core', __METHOD__ . ', before: '
-			. print_r($this->tags, true), ILogger::DEBUG);
-		foreach($names as $name) {
-			$id = null;
-
-			if (is_numeric($name)) {
-				$key = $this->getTagById($name);
-			} else {
-				$key = $this->getTagByName($name);
-			}
-			if ($key !== false) {
-				$tag = $this->tags[$key];
-				$id = $tag->getId();
-				unset($this->tags[$key]);
-				$this->mapper->delete($tag);
-			} else {
-				\OCP\Util::writeLog('core', __METHOD__ . 'Cannot delete tag ' . $name
-					. ': not found.', ILogger::ERROR);
-			}
-			if(!is_null($id) && $id !== false) {
-				try {
-					$sql = 'DELETE FROM `' . self::RELATION_TABLE . '` '
-							. 'WHERE `categoryid` = ?';
-					$stmt = \OC_DB::prepare($sql);
-					$result = $stmt->execute(array($id));
-					if ($result === null) {
-						\OCP\Util::writeLog('core',
-							__METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(),
-							ILogger::ERROR);
-						return false;
-					}
-				} catch(\Exception $e) {
-					\OC::$server->getLogger()->logException($e, [
-						'message' => __METHOD__,
-						'level' => ILogger::ERROR,
-						'app' => 'core',
-					]);
-					return false;
-				}
-			}
-		}
-		return true;
-	}
-
-	// case-insensitive array_search
-	protected function array_searchi($needle, $haystack, $mem='getName') {
-		if(!is_array($haystack)) {
-			return false;
-		}
-		return array_search(strtolower($needle), array_map(
-			function($tag) use($mem) {
-				return strtolower(call_user_func(array($tag, $mem)));
-			}, $haystack)
-		);
-	}
-
-	/**
-	* Get a tag's ID.
-	*
-	* @param string $name The tag name to look for.
-	* @return string|bool The tag's id or false if no matching tag is found.
-	*/
-	private function getTagId($name) {
-		$key = $this->array_searchi($name, $this->tags);
-		if ($key !== false) {
-			return $this->tags[$key]->getId();
-		}
-		return false;
-	}
-
-	/**
-	* Get a tag by its name.
-	*
-	* @param string $name The tag name.
-	* @return integer|bool The tag object's offset within the $this->tags
-	*                      array or false if it doesn't exist.
-	*/
-	private function getTagByName($name) {
-		return $this->array_searchi($name, $this->tags, 'getName');
-	}
-
-	/**
-	* Get a tag by its ID.
-	*
-	* @param string $id The tag ID to look for.
-	* @return integer|bool The tag object's offset within the $this->tags
-	*                      array or false if it doesn't exist.
-	*/
-	private function getTagById($id) {
-		return $this->array_searchi($id, $this->tags, 'getId');
-	}
-
-	/**
-	* Returns an array mapping a given tag's properties to its values:
-	* ['id' => 0, 'name' = 'Tag', 'owner' = 'User', 'type' => 'tagtype']
-	*
-	* @param Tag $tag The tag that is going to be mapped
-	* @return array
-	*/
-	private function tagMap(Tag $tag) {
-		return array(
-			'id'    => $tag->getId(),
-			'name'  => $tag->getName(),
-			'owner' => $tag->getOwner(),
-			'type'  => $tag->getType()
-		);
-	}
+    /**
+     * Tags
+     *
+     * @var array
+     */
+    private $tags = array();
+
+    /**
+     * Used for storing objectid/categoryname pairs while rescanning.
+     *
+     * @var array
+     */
+    private static $relations = array();
+
+    /**
+     * Type
+     *
+     * @var string
+     */
+    private $type;
+
+    /**
+     * User
+     *
+     * @var string
+     */
+    private $user;
+
+    /**
+     * Are we including tags for shared items?
+     *
+     * @var bool
+     */
+    private $includeShared = false;
+
+    /**
+     * The current user, plus any owners of the items shared with the current
+     * user, if $this->includeShared === true.
+     *
+     * @var array
+     */
+    private $owners = array();
+
+    /**
+     * The Mapper we're using to communicate our Tag objects to the database.
+     *
+     * @var TagMapper
+     */
+    private $mapper;
+
+    /**
+     * The sharing backend for objects of $this->type. Required if
+     * $this->includeShared === true to determine ownership of items.
+     *
+     * @var \OCP\Share_Backend
+     */
+    private $backend;
+
+    const TAG_TABLE = '*PREFIX*vcategory';
+    const RELATION_TABLE = '*PREFIX*vcategory_to_object';
+
+    const TAG_FAVORITE = '_$!<Favorite>!$_';
+
+    /**
+     * Constructor.
+     *
+     * @param TagMapper $mapper Instance of the TagMapper abstraction layer.
+     * @param string $user The user whose data the object will operate on.
+     * @param string $type The type of items for which tags will be loaded.
+     * @param array $defaultTags Tags that should be created at construction.
+     * @param boolean $includeShared Whether to include tags for items shared with this user by others.
+     */
+    public function __construct(TagMapper $mapper, $user, $type, $defaultTags = array(), $includeShared = false) {
+        $this->mapper = $mapper;
+        $this->user = $user;
+        $this->type = $type;
+        $this->includeShared = $includeShared;
+        $this->owners = array($this->user);
+        if ($this->includeShared) {
+            $this->owners = array_merge($this->owners, \OC\Share\Share::getSharedItemsOwners($this->user, $this->type, true));
+            $this->backend = \OC\Share\Share::getBackend($this->type);
+        }
+        $this->tags = $this->mapper->loadTags($this->owners, $this->type);
+
+        if(count($defaultTags) > 0 && count($this->tags) === 0) {
+            $this->addMultiple($defaultTags, true);
+        }
+    }
+
+    /**
+     * Check if any tags are saved for this type and user.
+     *
+     * @return boolean
+     */
+    public function isEmpty() {
+        return count($this->tags) === 0;
+    }
+
+    /**
+     * Returns an array mapping a given tag's properties to its values:
+     * ['id' => 0, 'name' = 'Tag', 'owner' = 'User', 'type' => 'tagtype']
+     *
+     * @param string $id The ID of the tag that is going to be mapped
+     * @return array|false
+     */
+    public function getTag($id) {
+        $key = $this->getTagById($id);
+        if ($key !== false) {
+            return $this->tagMap($this->tags[$key]);
+        }
+        return false;
+    }
+
+    /**
+     * Get the tags for a specific user.
+     *
+     * This returns an array with maps containing each tag's properties:
+     * [
+     * 	['id' => 0, 'name' = 'First tag', 'owner' = 'User', 'type' => 'tagtype'],
+     * 	['id' => 1, 'name' = 'Shared tag', 'owner' = 'Other user', 'type' => 'tagtype'],
+     * ]
+     *
+     * @return array
+     */
+    public function getTags() {
+        if(!count($this->tags)) {
+            return array();
+        }
+
+        usort($this->tags, function($a, $b) {
+            return strnatcasecmp($a->getName(), $b->getName());
+        });
+        $tagMap = array();
+
+        foreach($this->tags as $tag) {
+            if($tag->getName() !== self::TAG_FAVORITE) {
+                $tagMap[] = $this->tagMap($tag);
+            }
+        }
+        return $tagMap;
+
+    }
+
+    /**
+     * Return only the tags owned by the given user, omitting any tags shared
+     * by other users.
+     *
+     * @param string $user The user whose tags are to be checked.
+     * @return array An array of Tag objects.
+     */
+    public function getTagsForUser($user) {
+        return array_filter($this->tags,
+            function($tag) use($user) {
+                return $tag->getOwner() === $user;
+            }
+        );
+    }
+
+    /**
+     * Get the list of tags for the given ids.
+     *
+     * @param array $objIds array of object ids
+     * @return array|boolean of tags id as key to array of tag names
+     * or false if an error occurred
+     */
+    public function getTagsForObjects(array $objIds) {
+        $entries = array();
+
+        try {
+            $conn = \OC::$server->getDatabaseConnection();
+            $chunks = array_chunk($objIds, 900, false);
+            foreach ($chunks as $chunk) {
+                $result = $conn->executeQuery(
+                    'SELECT `category`, `categoryid`, `objid` ' .
+                    'FROM `' . self::RELATION_TABLE . '` r, `' . self::TAG_TABLE . '` ' .
+                    'WHERE `categoryid` = `id` AND `uid` = ? AND r.`type` = ? AND `objid` IN (?)',
+                    array($this->user, $this->type, $chunk),
+                    array(null, null, IQueryBuilder::PARAM_INT_ARRAY)
+                );
+                while ($row = $result->fetch()) {
+                    $objId = (int)$row['objid'];
+                    if (!isset($entries[$objId])) {
+                        $entries[$objId] = array();
+                    }
+                    $entries[$objId][] = $row['category'];
+                }
+                if ($result === null) {
+                    \OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
+                    return false;
+                }
+            }
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+
+        return $entries;
+    }
+
+    /**
+     * Get the a list if items tagged with $tag.
+     *
+     * Throws an exception if the tag could not be found.
+     *
+     * @param string $tag Tag id or name.
+     * @return array|false An array of object ids or false on error.
+     * @throws \Exception
+     */
+    public function getIdsForTag($tag) {
+        $result = null;
+        $tagId = false;
+        if(is_numeric($tag)) {
+            $tagId = $tag;
+        } elseif(is_string($tag)) {
+            $tag = trim($tag);
+            if($tag === '') {
+                \OCP\Util::writeLog('core', __METHOD__.', Cannot use empty tag names', ILogger::DEBUG);
+                return false;
+            }
+            $tagId = $this->getTagId($tag);
+        }
+
+        if($tagId === false) {
+            $l10n = \OC::$server->getL10N('core');
+            throw new \Exception(
+                $l10n->t('Could not find category "%s"', [$tag])
+            );
+        }
+
+        $ids = array();
+        $sql = 'SELECT `objid` FROM `' . self::RELATION_TABLE
+            . '` WHERE `categoryid` = ?';
+
+        try {
+            $stmt = \OC_DB::prepare($sql);
+            $result = $stmt->execute(array($tagId));
+            if ($result === null) {
+                \OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
+                return false;
+            }
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+
+        if(!is_null($result)) {
+            while( $row = $result->fetchRow()) {
+                $id = (int)$row['objid'];
+
+                if ($this->includeShared) {
+                    // We have to check if we are really allowed to access the
+                    // items that are tagged with $tag. To that end, we ask the
+                    // corresponding sharing backend if the item identified by $id
+                    // is owned by any of $this->owners.
+                    foreach ($this->owners as $owner) {
+                        if ($this->backend->isValidSource($id, $owner)) {
+                            $ids[] = $id;
+                            break;
+                        }
+                    }
+                } else {
+                    $ids[] = $id;
+                }
+            }
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Checks whether a tag is saved for the given user,
+     * disregarding the ones shared with him or her.
+     *
+     * @param string $name The tag name to check for.
+     * @param string $user The user whose tags are to be checked.
+     * @return bool
+     */
+    public function userHasTag($name, $user) {
+        $key = $this->array_searchi($name, $this->getTagsForUser($user));
+        return ($key !== false) ? $this->tags[$key]->getId() : false;
+    }
+
+    /**
+     * Checks whether a tag is saved for or shared with the current user.
+     *
+     * @param string $name The tag name to check for.
+     * @return bool
+     */
+    public function hasTag($name) {
+        return $this->getTagId($name) !== false;
+    }
+
+    /**
+     * Add a new tag.
+     *
+     * @param string $name A string with a name of the tag
+     * @return false|int the id of the added tag or false on error.
+     */
+    public function add($name) {
+        $name = trim($name);
+
+        if($name === '') {
+            \OCP\Util::writeLog('core', __METHOD__.', Cannot add an empty tag', ILogger::DEBUG);
+            return false;
+        }
+        if($this->userHasTag($name, $this->user)) {
+            \OCP\Util::writeLog('core', __METHOD__.', name: ' . $name. ' exists already', ILogger::DEBUG);
+            return false;
+        }
+        try {
+            $tag = new Tag($this->user, $this->type, $name);
+            $tag = $this->mapper->insert($tag);
+            $this->tags[] = $tag;
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+        \OCP\Util::writeLog('core', __METHOD__.', id: ' . $tag->getId(), ILogger::DEBUG);
+        return $tag->getId();
+    }
+
+    /**
+     * Rename tag.
+     *
+     * @param string|integer $from The name or ID of the existing tag
+     * @param string $to The new name of the tag.
+     * @return bool
+     */
+    public function rename($from, $to) {
+        $from = trim($from);
+        $to = trim($to);
+
+        if($to === '' || $from === '') {
+            \OCP\Util::writeLog('core', __METHOD__.', Cannot use empty tag names', ILogger::DEBUG);
+            return false;
+        }
+
+        if (is_numeric($from)) {
+            $key = $this->getTagById($from);
+        } else {
+            $key = $this->getTagByName($from);
+        }
+        if($key === false) {
+            \OCP\Util::writeLog('core', __METHOD__.', tag: ' . $from. ' does not exist', ILogger::DEBUG);
+            return false;
+        }
+        $tag = $this->tags[$key];
+
+        if($this->userHasTag($to, $tag->getOwner())) {
+            \OCP\Util::writeLog('core', __METHOD__.', A tag named ' . $to. ' already exists for user ' . $tag->getOwner() . '.', ILogger::DEBUG);
+            return false;
+        }
+
+        try {
+            $tag->setName($to);
+            $this->tags[$key] = $this->mapper->update($tag);
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Add a list of new tags.
+     *
+     * @param string[] $names A string with a name or an array of strings containing
+     * the name(s) of the tag(s) to add.
+     * @param bool $sync When true, save the tags
+     * @param int|null $id int Optional object id to add to this|these tag(s)
+     * @return bool Returns false on error.
+     */
+    public function addMultiple($names, $sync=false, $id = null) {
+        if(!is_array($names)) {
+            $names = array($names);
+        }
+        $names = array_map('trim', $names);
+        array_filter($names);
+
+        $newones = array();
+        foreach($names as $name) {
+            if(!$this->hasTag($name) && $name !== '') {
+                $newones[] = new Tag($this->user, $this->type, $name);
+            }
+            if(!is_null($id) ) {
+                // Insert $objectid, $categoryid  pairs if not exist.
+                self::$relations[] = array('objid' => $id, 'tag' => $name);
+            }
+        }
+        $this->tags = array_merge($this->tags, $newones);
+        if($sync === true) {
+            $this->save();
+        }
+
+        return true;
+    }
+
+    /**
+     * Save the list of tags and their object relations
+     */
+    protected function save() {
+        if(is_array($this->tags)) {
+            foreach($this->tags as $tag) {
+                try {
+                    if (!$this->mapper->tagExists($tag)) {
+                        $this->mapper->insert($tag);
+                    }
+                } catch(\Exception $e) {
+                    \OC::$server->getLogger()->logException($e, [
+                        'message' => __METHOD__,
+                        'level' => ILogger::ERROR,
+                        'app' => 'core',
+                    ]);
+                }
+            }
+
+            // reload tags to get the proper ids.
+            $this->tags = $this->mapper->loadTags($this->owners, $this->type);
+            \OCP\Util::writeLog('core', __METHOD__.', tags: ' . print_r($this->tags, true),
+                ILogger::DEBUG);
+            // Loop through temporarily cached objectid/tagname pairs
+            // and save relations.
+            $tags = $this->tags;
+            // For some reason this is needed or array_search(i) will return 0..?
+            ksort($tags);
+            $dbConnection = \OC::$server->getDatabaseConnection();
+            foreach(self::$relations as $relation) {
+                $tagId = $this->getTagId($relation['tag']);
+                \OCP\Util::writeLog('core', __METHOD__ . 'catid, ' . $relation['tag'] . ' ' . $tagId, ILogger::DEBUG);
+                if($tagId) {
+                    try {
+                        $dbConnection->insertIfNotExist(self::RELATION_TABLE,
+                            array(
+                                'objid' => $relation['objid'],
+                                'categoryid' => $tagId,
+                                'type' => $this->type,
+                                ));
+                    } catch(\Exception $e) {
+                        \OC::$server->getLogger()->logException($e, [
+                            'message' => __METHOD__,
+                            'level' => ILogger::ERROR,
+                            'app' => 'core',
+                        ]);
+                    }
+                }
+            }
+            self::$relations = array(); // reset
+        } else {
+            \OCP\Util::writeLog('core', __METHOD__.', $this->tags is not an array! '
+                . print_r($this->tags, true), ILogger::ERROR);
+        }
+    }
+
+    /**
+     * Delete tags and tag/object relations for a user.
+     *
+     * For hooking up on post_deleteUser
+     *
+     * @param array $arguments
+     */
+    public static function post_deleteUser($arguments) {
+        // Find all objectid/tagId pairs.
+        $result = null;
+        try {
+            $stmt = \OC_DB::prepare('SELECT `id` FROM `' . self::TAG_TABLE . '` '
+                . 'WHERE `uid` = ?');
+            $result = $stmt->execute(array($arguments['uid']));
+            if ($result === null) {
+                \OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
+            }
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+        }
+
+        if(!is_null($result)) {
+            try {
+                $stmt = \OC_DB::prepare('DELETE FROM `' . self::RELATION_TABLE . '` '
+                    . 'WHERE `categoryid` = ?');
+                while( $row = $result->fetchRow()) {
+                    try {
+                        $stmt->execute(array($row['id']));
+                    } catch(\Exception $e) {
+                        \OC::$server->getLogger()->logException($e, [
+                            'message' => __METHOD__,
+                            'level' => ILogger::ERROR,
+                            'app' => 'core',
+                        ]);
+                    }
+                }
+            } catch(\Exception $e) {
+                \OC::$server->getLogger()->logException($e, [
+                    'message' => __METHOD__,
+                    'level' => ILogger::ERROR,
+                    'app' => 'core',
+                ]);
+            }
+        }
+        try {
+            $stmt = \OC_DB::prepare('DELETE FROM `' . self::TAG_TABLE . '` '
+                . 'WHERE `uid` = ?');
+            $result = $stmt->execute(array($arguments['uid']));
+            if ($result === null) {
+                \OCP\Util::writeLog('core', __METHOD__. ', DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
+            }
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+        }
+    }
+
+    /**
+     * Delete tag/object relations from the db
+     *
+     * @param array $ids The ids of the objects
+     * @return boolean Returns false on error.
+     */
+    public function purgeObjects(array $ids) {
+        if(count($ids) === 0) {
+            // job done ;)
+            return true;
+        }
+        $updates = $ids;
+        try {
+            $query = 'DELETE FROM `' . self::RELATION_TABLE . '` ';
+            $query .= 'WHERE `objid` IN (' . str_repeat('?,', count($ids)-1) . '?) ';
+            $query .= 'AND `type`= ?';
+            $updates[] = $this->type;
+            $stmt = \OC_DB::prepare($query);
+            $result = $stmt->execute($updates);
+            if ($result === null) {
+                \OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(), ILogger::ERROR);
+                return false;
+            }
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Get favorites for an object type
+     *
+     * @return array|false An array of object ids.
+     */
+    public function getFavorites() {
+        try {
+            return $this->getIdsForTag(self::TAG_FAVORITE);
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return array();
+        }
+    }
+
+    /**
+     * Add an object to favorites
+     *
+     * @param int $objid The id of the object
+     * @return boolean
+     */
+    public function addToFavorites($objid) {
+        if(!$this->userHasTag(self::TAG_FAVORITE, $this->user)) {
+            $this->add(self::TAG_FAVORITE);
+        }
+        return $this->tagAs($objid, self::TAG_FAVORITE);
+    }
+
+    /**
+     * Remove an object from favorites
+     *
+     * @param int $objid The id of the object
+     * @return boolean
+     */
+    public function removeFromFavorites($objid) {
+        return $this->unTag($objid, self::TAG_FAVORITE);
+    }
+
+    /**
+     * Creates a tag/object relation.
+     *
+     * @param int $objid The id of the object
+     * @param string $tag The id or name of the tag
+     * @return boolean Returns false on error.
+     */
+    public function tagAs($objid, $tag) {
+        if(is_string($tag) && !is_numeric($tag)) {
+            $tag = trim($tag);
+            if($tag === '') {
+                \OCP\Util::writeLog('core', __METHOD__.', Cannot add an empty tag', ILogger::DEBUG);
+                return false;
+            }
+            if(!$this->hasTag($tag)) {
+                $this->add($tag);
+            }
+            $tagId =  $this->getTagId($tag);
+        } else {
+            $tagId = $tag;
+        }
+        try {
+            \OC::$server->getDatabaseConnection()->insertIfNotExist(self::RELATION_TABLE,
+                array(
+                    'objid' => $objid,
+                    'categoryid' => $tagId,
+                    'type' => $this->type,
+                ));
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Delete single tag/object relation from the db
+     *
+     * @param int $objid The id of the object
+     * @param string $tag The id or name of the tag
+     * @return boolean
+     */
+    public function unTag($objid, $tag) {
+        if(is_string($tag) && !is_numeric($tag)) {
+            $tag = trim($tag);
+            if($tag === '') {
+                \OCP\Util::writeLog('core', __METHOD__.', Tag name is empty', ILogger::DEBUG);
+                return false;
+            }
+            $tagId =  $this->getTagId($tag);
+        } else {
+            $tagId = $tag;
+        }
+
+        try {
+            $sql = 'DELETE FROM `' . self::RELATION_TABLE . '` '
+                    . 'WHERE `objid` = ? AND `categoryid` = ? AND `type` = ?';
+            $stmt = \OC_DB::prepare($sql);
+            $stmt->execute(array($objid, $tagId, $this->type));
+        } catch(\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => __METHOD__,
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Delete tags from the database.
+     *
+     * @param string[]|integer[] $names An array of tags (names or IDs) to delete
+     * @return bool Returns false on error
+     */
+    public function delete($names) {
+        if(!is_array($names)) {
+            $names = array($names);
+        }
+
+        $names = array_map('trim', $names);
+        array_filter($names);
+
+        \OCP\Util::writeLog('core', __METHOD__ . ', before: '
+            . print_r($this->tags, true), ILogger::DEBUG);
+        foreach($names as $name) {
+            $id = null;
+
+            if (is_numeric($name)) {
+                $key = $this->getTagById($name);
+            } else {
+                $key = $this->getTagByName($name);
+            }
+            if ($key !== false) {
+                $tag = $this->tags[$key];
+                $id = $tag->getId();
+                unset($this->tags[$key]);
+                $this->mapper->delete($tag);
+            } else {
+                \OCP\Util::writeLog('core', __METHOD__ . 'Cannot delete tag ' . $name
+                    . ': not found.', ILogger::ERROR);
+            }
+            if(!is_null($id) && $id !== false) {
+                try {
+                    $sql = 'DELETE FROM `' . self::RELATION_TABLE . '` '
+                            . 'WHERE `categoryid` = ?';
+                    $stmt = \OC_DB::prepare($sql);
+                    $result = $stmt->execute(array($id));
+                    if ($result === null) {
+                        \OCP\Util::writeLog('core',
+                            __METHOD__. 'DB error: ' . \OC::$server->getDatabaseConnection()->getError(),
+                            ILogger::ERROR);
+                        return false;
+                    }
+                } catch(\Exception $e) {
+                    \OC::$server->getLogger()->logException($e, [
+                        'message' => __METHOD__,
+                        'level' => ILogger::ERROR,
+                        'app' => 'core',
+                    ]);
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    // case-insensitive array_search
+    protected function array_searchi($needle, $haystack, $mem='getName') {
+        if(!is_array($haystack)) {
+            return false;
+        }
+        return array_search(strtolower($needle), array_map(
+            function($tag) use($mem) {
+                return strtolower(call_user_func(array($tag, $mem)));
+            }, $haystack)
+        );
+    }
+
+    /**
+     * Get a tag's ID.
+     *
+     * @param string $name The tag name to look for.
+     * @return string|bool The tag's id or false if no matching tag is found.
+     */
+    private function getTagId($name) {
+        $key = $this->array_searchi($name, $this->tags);
+        if ($key !== false) {
+            return $this->tags[$key]->getId();
+        }
+        return false;
+    }
+
+    /**
+     * Get a tag by its name.
+     *
+     * @param string $name The tag name.
+     * @return integer|bool The tag object's offset within the $this->tags
+     *                      array or false if it doesn't exist.
+     */
+    private function getTagByName($name) {
+        return $this->array_searchi($name, $this->tags, 'getName');
+    }
+
+    /**
+     * Get a tag by its ID.
+     *
+     * @param string $id The tag ID to look for.
+     * @return integer|bool The tag object's offset within the $this->tags
+     *                      array or false if it doesn't exist.
+     */
+    private function getTagById($id) {
+        return $this->array_searchi($id, $this->tags, 'getId');
+    }
+
+    /**
+     * Returns an array mapping a given tag's properties to its values:
+     * ['id' => 0, 'name' = 'Tag', 'owner' = 'User', 'type' => 'tagtype']
+     *
+     * @param Tag $tag The tag that is going to be mapped
+     * @return array
+     */
+    private function tagMap(Tag $tag) {
+        return array(
+            'id'    => $tag->getId(),
+            'name'  => $tag->getName(),
+            'owner' => $tag->getOwner(),
+            'type'  => $tag->getType()
+        );
+    }
 }

lib/private/Setup/MySQL.php

Indentation +139 added lines, -139 removed lines

@@ -34,143 +34,143 @@
 use OCP\ILogger;
 
 class MySQL extends AbstractDatabase {
-	public $dbprettyname = 'MySQL/MariaDB';
-
-	public function setupDatabase($username) {
-		//check if the database user has admin right
-		$connection = $this->connect(['dbname' => null]);
-
-		// detect mb4
-		$tools = new MySqlTools();
-		if ($tools->supports4ByteCharset($connection)) {
-			$this->config->setValue('mysql.utf8mb4', true);
-			$connection = $this->connect(['dbname' => null]);
-		}
-
-		$this->createSpecificUser($username, $connection);
-
-		//create the database
-		$this->createDatabase($connection);
-
-		//fill the database if needed
-		$query='select count(*) from information_schema.tables where table_schema=? AND table_name = ?';
-		$connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']);
-	}
-
-	/**
-	 * @param \OC\DB\Connection $connection
-	 */
-	private function createDatabase($connection) {
-		try{
-			$name = $this->dbName;
-			$user = $this->dbUser;
-			//we can't use OC_DB functions here because we need to connect as the administrative user.
-			$characterSet = $this->config->getValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
-			$query = "CREATE DATABASE IF NOT EXISTS `$name` CHARACTER SET $characterSet COLLATE ${characterSet}_bin;";
-			$connection->executeUpdate($query);
-		} catch (\Exception $ex) {
-			$this->logger->logException($ex, [
-				'message' => 'Database creation failed.',
-				'level' => ILogger::ERROR,
-				'app' => 'mysql.setup',
-			]);
-			return;
-		}
-
-		try {
-			//this query will fail if there aren't the right permissions, ignore the error
-			$query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
-			$connection->executeUpdate($query);
-		} catch (\Exception $ex) {
-			$this->logger->logException($ex, [
-				'message' => 'Could not automatically grant privileges, this can be ignored if database user already had privileges.',
-				'level' => ILogger::DEBUG,
-				'app' => 'mysql.setup',
-			]);
-		}
-	}
-
-	/**
-	 * @param IDBConnection $connection
-	 * @throws \OC\DatabaseSetupException
-	 */
-	private function createDBUser($connection) {
-		try{
-			$name = $this->dbUser;
-			$password = $this->dbPassword;
-			// we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
-			// the anonymous user would take precedence when there is one.
-			$query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'";
-			$connection->executeUpdate($query);
-			$query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
-			$connection->executeUpdate($query);
-		}
-		catch (\Exception $ex){
-			$this->logger->logException($ex, [
-				'message' => 'Database user creation failed.',
-				'level' => ILogger::ERROR,
-				'app' => 'mysql.setup',
-			]);
-		}
-	}
-
-	/**
-	 * @param $username
-	 * @param IDBConnection $connection
-	 * @return array
-	 */
-	private function createSpecificUser($username, $connection) {
-		try {
-			//user already specified in config
-			$oldUser = $this->config->getValue('dbuser', false);
-
-			//we don't have a dbuser specified in config
-			if ($this->dbUser !== $oldUser) {
-				//add prefix to the admin username to prevent collisions
-				$adminUser = substr('oc_' . $username, 0, 16);
-
-				$i = 1;
-				while (true) {
-					//this should be enough to check for admin rights in mysql
-					$query = 'SELECT user FROM mysql.user WHERE user=?';
-					$result = $connection->executeQuery($query, [$adminUser]);
-
-					//current dbuser has admin rights
-					if ($result) {
-						$data = $result->fetchAll();
-						//new dbuser does not exist
-						if (count($data) === 0) {
-							//use the admin login data for the new database user
-							$this->dbUser = $adminUser;
-
-							//create a random password so we don't need to store the admin password in the config file
-							$this->dbPassword =  $this->random->generate(30);
-
-							$this->createDBUser($connection);
-
-							break;
-						} else {
-							//repeat with different username
-							$length = strlen((string)$i);
-							$adminUser = substr('oc_' . $username, 0, 16 - $length) . $i;
-							$i++;
-						}
-					} else {
-						break;
-					}
-				}
-			}
-		} catch (\Exception $ex) {
-			$this->logger->logException($ex, [
-				'message' => 'Can not create a new MySQL user, will continue with the provided user.',
-				'level' => ILogger::INFO,
-				'app' => 'mysql.setup',
-			]);
-		}
-
-		$this->config->setValues([
-			'dbuser' => $this->dbUser,
-			'dbpassword' => $this->dbPassword,
-		]);
-	}
+    public $dbprettyname = 'MySQL/MariaDB';
+
+    public function setupDatabase($username) {
+        //check if the database user has admin right
+        $connection = $this->connect(['dbname' => null]);
+
+        // detect mb4
+        $tools = new MySqlTools();
+        if ($tools->supports4ByteCharset($connection)) {
+            $this->config->setValue('mysql.utf8mb4', true);
+            $connection = $this->connect(['dbname' => null]);
+        }
+
+        $this->createSpecificUser($username, $connection);
+
+        //create the database
+        $this->createDatabase($connection);
+
+        //fill the database if needed
+        $query='select count(*) from information_schema.tables where table_schema=? AND table_name = ?';
+        $connection->executeQuery($query, [$this->dbName, $this->tablePrefix.'users']);
+    }
+
+    /**
+     * @param \OC\DB\Connection $connection
+     */
+    private function createDatabase($connection) {
+        try{
+            $name = $this->dbName;
+            $user = $this->dbUser;
+            //we can't use OC_DB functions here because we need to connect as the administrative user.
+            $characterSet = $this->config->getValue('mysql.utf8mb4', false) ? 'utf8mb4' : 'utf8';
+            $query = "CREATE DATABASE IF NOT EXISTS `$name` CHARACTER SET $characterSet COLLATE ${characterSet}_bin;";
+            $connection->executeUpdate($query);
+        } catch (\Exception $ex) {
+            $this->logger->logException($ex, [
+                'message' => 'Database creation failed.',
+                'level' => ILogger::ERROR,
+                'app' => 'mysql.setup',
+            ]);
+            return;
+        }
+
+        try {
+            //this query will fail if there aren't the right permissions, ignore the error
+            $query="GRANT ALL PRIVILEGES ON `$name` . * TO '$user'";
+            $connection->executeUpdate($query);
+        } catch (\Exception $ex) {
+            $this->logger->logException($ex, [
+                'message' => 'Could not automatically grant privileges, this can be ignored if database user already had privileges.',
+                'level' => ILogger::DEBUG,
+                'app' => 'mysql.setup',
+            ]);
+        }
+    }
+
+    /**
+     * @param IDBConnection $connection
+     * @throws \OC\DatabaseSetupException
+     */
+    private function createDBUser($connection) {
+        try{
+            $name = $this->dbUser;
+            $password = $this->dbPassword;
+            // we need to create 2 accounts, one for global use and one for local user. if we don't specify the local one,
+            // the anonymous user would take precedence when there is one.
+            $query = "CREATE USER '$name'@'localhost' IDENTIFIED BY '$password'";
+            $connection->executeUpdate($query);
+            $query = "CREATE USER '$name'@'%' IDENTIFIED BY '$password'";
+            $connection->executeUpdate($query);
+        }
+        catch (\Exception $ex){
+            $this->logger->logException($ex, [
+                'message' => 'Database user creation failed.',
+                'level' => ILogger::ERROR,
+                'app' => 'mysql.setup',
+            ]);
+        }
+    }
+
+    /**
+     * @param $username
+     * @param IDBConnection $connection
+     * @return array
+     */
+    private function createSpecificUser($username, $connection) {
+        try {
+            //user already specified in config
+            $oldUser = $this->config->getValue('dbuser', false);
+
+            //we don't have a dbuser specified in config
+            if ($this->dbUser !== $oldUser) {
+                //add prefix to the admin username to prevent collisions
+                $adminUser = substr('oc_' . $username, 0, 16);
+
+                $i = 1;
+                while (true) {
+                    //this should be enough to check for admin rights in mysql
+                    $query = 'SELECT user FROM mysql.user WHERE user=?';
+                    $result = $connection->executeQuery($query, [$adminUser]);
+
+                    //current dbuser has admin rights
+                    if ($result) {
+                        $data = $result->fetchAll();
+                        //new dbuser does not exist
+                        if (count($data) === 0) {
+                            //use the admin login data for the new database user
+                            $this->dbUser = $adminUser;
+
+                            //create a random password so we don't need to store the admin password in the config file
+                            $this->dbPassword =  $this->random->generate(30);
+
+                            $this->createDBUser($connection);
+
+                            break;
+                        } else {
+                            //repeat with different username
+                            $length = strlen((string)$i);
+                            $adminUser = substr('oc_' . $username, 0, 16 - $length) . $i;
+                            $i++;
+                        }
+                    } else {
+                        break;
+                    }
+                }
+            }
+        } catch (\Exception $ex) {
+            $this->logger->logException($ex, [
+                'message' => 'Can not create a new MySQL user, will continue with the provided user.',
+                'level' => ILogger::INFO,
+                'app' => 'mysql.setup',
+            ]);
+        }
+
+        $this->config->setValues([
+            'dbuser' => $this->dbUser,
+            'dbpassword' => $this->dbPassword,
+        ]);
+    }
 }

lib/private/Preview/Bitmap.php

Indentation +81 added lines, -81 removed lines

@@ -35,86 +35,86 @@
  */
 abstract class Bitmap extends Provider {
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
-
-		$tmpPath = $fileview->toTmpFile($path);
-		if (!$tmpPath) {
-			return false;
-		}
-
-		// Creates \Imagick object from bitmap or vector file
-		try {
-			$bp = $this->getResizedPreview($tmpPath, $maxX, $maxY);
-		} catch (\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'message' => 'Imagick says:',
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
-
-		unlink($tmpPath);
-
-		//new bitmap image object
-		$image = new \OC_Image();
-		$image->loadFromData($bp);
-		//check if image object is valid
-		return $image->valid() ? $image : false;
-	}
-
-	/**
-	 * Returns a preview of maxX times maxY dimensions in PNG format
-	 *
-	 *    * The default resolution is already 72dpi, no need to change it for a bitmap output
-	 *    * It's possible to have proper colour conversion using profileimage().
-	 *    ICC profiles are here: http://www.color.org/srgbprofiles.xalter
-	 *    * It's possible to Gamma-correct an image via gammaImage()
-	 *
-	 * @param string $tmpPath the location of the file to convert
-	 * @param int $maxX
-	 * @param int $maxY
-	 *
-	 * @return \Imagick
-	 */
-	private function getResizedPreview($tmpPath, $maxX, $maxY) {
-		$bp = new Imagick();
-
-		// Layer 0 contains either the bitmap or a flat representation of all vector layers
-		$bp->readImage($tmpPath . '[0]');
-
-		$bp = $this->resize($bp, $maxX, $maxY);
-
-		$bp->setImageFormat('png');
-
-		return $bp;
-	}
-
-	/**
-	 * Returns a resized \Imagick object
-	 *
-	 * If you want to know more on the various methods available to resize an
-	 * image, check out this link : @link https://stackoverflow.com/questions/8517304/what-the-difference-of-sample-resample-scale-resize-adaptive-resize-thumbnail-im
-	 *
-	 * @param \Imagick $bp
-	 * @param int $maxX
-	 * @param int $maxY
-	 *
-	 * @return \Imagick
-	 */
-	private function resize($bp, $maxX, $maxY) {
-		list($previewWidth, $previewHeight) = array_values($bp->getImageGeometry());
-
-		// We only need to resize a preview which doesn't fit in the maximum dimensions
-		if ($previewWidth > $maxX || $previewHeight > $maxY) {
-			// TODO: LANCZOS is the default filter, CATROM could bring similar results faster
-			$bp->resizeImage($maxX, $maxY, imagick::FILTER_LANCZOS, 1, true);
-		}
-
-		return $bp;
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+
+        $tmpPath = $fileview->toTmpFile($path);
+        if (!$tmpPath) {
+            return false;
+        }
+
+        // Creates \Imagick object from bitmap or vector file
+        try {
+            $bp = $this->getResizedPreview($tmpPath, $maxX, $maxY);
+        } catch (\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'message' => 'Imagick says:',
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
+
+        unlink($tmpPath);
+
+        //new bitmap image object
+        $image = new \OC_Image();
+        $image->loadFromData($bp);
+        //check if image object is valid
+        return $image->valid() ? $image : false;
+    }
+
+    /**
+     * Returns a preview of maxX times maxY dimensions in PNG format
+     *
+     *    * The default resolution is already 72dpi, no need to change it for a bitmap output
+     *    * It's possible to have proper colour conversion using profileimage().
+     *    ICC profiles are here: http://www.color.org/srgbprofiles.xalter
+     *    * It's possible to Gamma-correct an image via gammaImage()
+     *
+     * @param string $tmpPath the location of the file to convert
+     * @param int $maxX
+     * @param int $maxY
+     *
+     * @return \Imagick
+     */
+    private function getResizedPreview($tmpPath, $maxX, $maxY) {
+        $bp = new Imagick();
+
+        // Layer 0 contains either the bitmap or a flat representation of all vector layers
+        $bp->readImage($tmpPath . '[0]');
+
+        $bp = $this->resize($bp, $maxX, $maxY);
+
+        $bp->setImageFormat('png');
+
+        return $bp;
+    }
+
+    /**
+     * Returns a resized \Imagick object
+     *
+     * If you want to know more on the various methods available to resize an
+     * image, check out this link : @link https://stackoverflow.com/questions/8517304/what-the-difference-of-sample-resample-scale-resize-adaptive-resize-thumbnail-im
+     *
+     * @param \Imagick $bp
+     * @param int $maxX
+     * @param int $maxY
+     *
+     * @return \Imagick
+     */
+    private function resize($bp, $maxX, $maxY) {
+        list($previewWidth, $previewHeight) = array_values($bp->getImageGeometry());
+
+        // We only need to resize a preview which doesn't fit in the maximum dimensions
+        if ($previewWidth > $maxX || $previewHeight > $maxY) {
+            // TODO: LANCZOS is the default filter, CATROM could bring similar results faster
+            $bp->resizeImage($maxX, $maxY, imagick::FILTER_LANCZOS, 1, true);
+        }
+
+        return $bp;
+    }
 
 }

lib/private/Preview/SVG.php

Indentation +40 added lines, -40 removed lines

@@ -27,50 +27,50 @@
 use OCP\ILogger;
 
 class SVG extends Provider {
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getMimeType() {
-		return '/image\/svg\+xml/';
-	}
+    /**
+     * {@inheritDoc}
+     */
+    public function getMimeType() {
+        return '/image\/svg\+xml/';
+    }
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
-		try {
-			$svg = new \Imagick();
-			$svg->setBackgroundColor(new \ImagickPixel('transparent'));
+    /**
+     * {@inheritDoc}
+     */
+    public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+        try {
+            $svg = new \Imagick();
+            $svg->setBackgroundColor(new \ImagickPixel('transparent'));
 
-			$content = stream_get_contents($fileview->fopen($path, 'r'));
-			if (substr($content, 0, 5) !== '<?xml') {
-				$content = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . $content;
-			}
+            $content = stream_get_contents($fileview->fopen($path, 'r'));
+            if (substr($content, 0, 5) !== '<?xml') {
+                $content = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>' . $content;
+            }
 
-			// Do not parse SVG files with references
-			if (stripos($content, 'xlink:href') !== false) {
-				return false;
-			}
+            // Do not parse SVG files with references
+            if (stripos($content, 'xlink:href') !== false) {
+                return false;
+            }
 
-			$svg->readImageBlob($content);
-			$svg->setImageFormat('png32');
-		} catch (\Exception $e) {
-			\OC::$server->getLogger()->logException($e, [
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
+            $svg->readImageBlob($content);
+            $svg->setImageFormat('png32');
+        } catch (\Exception $e) {
+            \OC::$server->getLogger()->logException($e, [
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
 
-		//new image object
-		$image = new \OC_Image();
-		$image->loadFromData($svg);
-		//check if image object is valid
-		if ($image->valid()) {
-			$image->scaleDownToFit($maxX, $maxY);
+        //new image object
+        $image = new \OC_Image();
+        $image->loadFromData($svg);
+        //check if image object is valid
+        if ($image->valid()) {
+            $image->scaleDownToFit($maxX, $maxY);
 
-			return $image;
-		}
-		return false;
-	}
+            return $image;
+        }
+        return false;
+    }
 }

lib/private/Preview/Office.php

Indentation +60 added lines, -60 removed lines

@@ -28,83 +28,83 @@
 use OCP\ILogger;
 
 abstract class Office extends Provider {
-	private $cmd;
+    private $cmd;
 
-	/**
-	 * {@inheritDoc}
-	 */
-	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
-		$this->initCmd();
-		if (is_null($this->cmd)) {
-			return false;
-		}
+    /**
+     * {@inheritDoc}
+     */
+    public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+        $this->initCmd();
+        if (is_null($this->cmd)) {
+            return false;
+        }
 
-		$absPath = $fileview->toTmpFile($path);
+        $absPath = $fileview->toTmpFile($path);
 
-		$tmpDir = \OC::$server->getTempManager()->getTempBaseDir();
+        $tmpDir = \OC::$server->getTempManager()->getTempBaseDir();
 
-		$defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId() . '/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to pdf --outdir ';
-		$clParameters = \OC::$server->getConfig()->getSystemValue('preview_office_cl_parameters', $defaultParameters);
+        $defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId() . '/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to pdf --outdir ';
+        $clParameters = \OC::$server->getConfig()->getSystemValue('preview_office_cl_parameters', $defaultParameters);
 
-		$exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
+        $exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
 
-		shell_exec($exec);
+        shell_exec($exec);
 
-		//create imagick object from pdf
-		$pdfPreview = null;
-		try {
-			list($dirname, , , $filename) = array_values(pathinfo($absPath));
-			$pdfPreview = $dirname . '/' . $filename . '.pdf';
+        //create imagick object from pdf
+        $pdfPreview = null;
+        try {
+            list($dirname, , , $filename) = array_values(pathinfo($absPath));
+            $pdfPreview = $dirname . '/' . $filename . '.pdf';
 
-			$pdf = new \imagick($pdfPreview . '[0]');
-			$pdf->setImageFormat('jpg');
-		} catch (\Exception $e) {
-			unlink($absPath);
-			unlink($pdfPreview);
-			\OC::$server->getLogger()->logException($e, [
-				'level' => ILogger::ERROR,
-				'app' => 'core',
-			]);
-			return false;
-		}
+            $pdf = new \imagick($pdfPreview . '[0]');
+            $pdf->setImageFormat('jpg');
+        } catch (\Exception $e) {
+            unlink($absPath);
+            unlink($pdfPreview);
+            \OC::$server->getLogger()->logException($e, [
+                'level' => ILogger::ERROR,
+                'app' => 'core',
+            ]);
+            return false;
+        }
 
-		$image = new \OC_Image();
-		$image->loadFromData($pdf);
+        $image = new \OC_Image();
+        $image->loadFromData($pdf);
 
-		unlink($absPath);
-		unlink($pdfPreview);
+        unlink($absPath);
+        unlink($pdfPreview);
 
-		if ($image->valid()) {
-			$image->scaleDownToFit($maxX, $maxY);
+        if ($image->valid()) {
+            $image->scaleDownToFit($maxX, $maxY);
 
-			return $image;
-		}
-		return false;
+            return $image;
+        }
+        return false;
 
-	}
+    }
 
-	private function initCmd() {
-		$cmd = '';
+    private function initCmd() {
+        $cmd = '';
 
-		$libreOfficePath = \OC::$server->getConfig()->getSystemValue('preview_libreoffice_path', null);
-		if (is_string($libreOfficePath)) {
-			$cmd = $libreOfficePath;
-		}
+        $libreOfficePath = \OC::$server->getConfig()->getSystemValue('preview_libreoffice_path', null);
+        if (is_string($libreOfficePath)) {
+            $cmd = $libreOfficePath;
+        }
 
-		$whichLibreOffice = shell_exec('command -v libreoffice');
-		if ($cmd === '' && !empty($whichLibreOffice)) {
-			$cmd = 'libreoffice';
-		}
+        $whichLibreOffice = shell_exec('command -v libreoffice');
+        if ($cmd === '' && !empty($whichLibreOffice)) {
+            $cmd = 'libreoffice';
+        }
 
-		$whichOpenOffice = shell_exec('command -v openoffice');
-		if ($cmd === '' && !empty($whichOpenOffice)) {
-			$cmd = 'openoffice';
-		}
+        $whichOpenOffice = shell_exec('command -v openoffice');
+        if ($cmd === '' && !empty($whichOpenOffice)) {
+            $cmd = 'openoffice';
+        }
 
-		if ($cmd === '') {
-			$cmd = null;
-		}
+        if ($cmd === '') {
+            $cmd = null;
+        }
 
-		$this->cmd = $cmd;
-	}
+        $this->cmd = $cmd;
+    }
 }