lib/private/legacy/util.php
<?php
/**
* @author Adam Williamson <awilliam@redhat.com>
* @author Andreas Fischer <bantu@owncloud.com>
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Birk Borkason <daniel.niccoli@gmail.com>
* @author Björn Schießle <bjoern@schiessle.org>
* @author Brice Maron <brice@bmaron.net>
* @author Christopher Schäpers <kondou@ts.unde.re>
* @author Christoph Wurst <christoph@owncloud.com>
* @author Clark Tomlinson <fallen013@gmail.com>
* @author cmeh <cmeh@users.noreply.github.com>
* @author Florin Peter <github@florin-peter.de>
* @author Frank Karlitschek <frank@karlitschek.de>
* @author Georg Ehrke <georg@owncloud.com>
* @author helix84 <helix84@centrum.sk>
* @author Individual IT Services <info@individual-it.net>
* @author Jakob Sack <mail@jakobsack.de>
* @author Joas Schilling <coding@schilljs.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Kawohl <john@owncloud.com>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Markus Goetz <markus@woboq.com>
* @author Martin Mattel <martin.mattel@diemattels.at>
* @author Marvin Thomas Rabe <mrabe@marvinrabe.de>
* @author Michael Gapczynski <GapczynskiM@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Philipp Schaffrath <github@philippschaffrath.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Roeland Jago Douma <rullzer@owncloud.com>
* @author Stefan Rado <owncloud@sradonia.net>
* @author Stefan Weil <sw@weilnetz.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Thomas Tanghus <thomas@tanghus.net>
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
* @author Vincent Petry <pvince81@owncloud.com>
* @author Volkan Gezer <volkangezer@gmail.com>
*
* @copyright Copyright (c) 2018, ownCloud GmbH
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
use OC\Security\SignedUrl\Verifier;
use OC\User\LoginException;
use OCP\Authentication\Exceptions\AccountCheckException;
use OCP\Files\NoReadAccessException;
use OCP\IUser;
use OCP\License\ILicenseManager;
class OC_Util {
public static $scripts = [];
public static $styles = [];
public static $headers = [];
private static $rootMounted = false;
private static $fsSetup = false;
private static $version;
public const EDITION_COMMUNITY = 'Community';
public const EDITION_ENTERPRISE = 'Enterprise';
protected static function getAppManager() {
return \OC::$server->getAppManager();
}
private static function initLocalStorageRootFS() {
// mount local file backend as root
$configDataDirectory = \OC::$server->getSystemConfig()->getValue("datadirectory", OC::$SERVERROOT . "/data");
//first set up the local "root" storage
\OC\Files\Filesystem::initMountManager();
if (!self::$rootMounted) {
\OC\Files\Filesystem::mount('\OC\Files\Storage\Local', ['datadir' => $configDataDirectory], '/');
self::$rootMounted = true;
}
}
/**
* mounting an object storage as the root fs will in essence remove the
* necessity of a data folder being present.
* TODO make home storage aware of this and use the object storage instead of local disk access
*
* @param array $config containing 'class' and optional 'arguments'
*/
private static function initObjectStoreRootFS($config) {
// check misconfiguration
if (empty($config['class'])) {
\OCP\Util::writeLog('files', 'No class given for objectstore', \OCP\Util::ERROR);
}
if (!isset($config['arguments'])) {
$config['arguments'] = [];
}
// instantiate object store implementation
$name = $config['class'];
if (\strpos($name, 'OCA\\') === 0 && \substr_count($name, '\\') >= 2) {
$segments = \explode('\\', $name);
OC_App::loadApp(\strtolower($segments[1]));
}
$config['arguments']['objectstore'] = new $config['class']($config['arguments']);
// mount with plain / root object store implementation
$config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
// mount object storage as root
\OC\Files\Filesystem::initMountManager();
if (!self::$rootMounted) {
\OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
self::$rootMounted = true;
}
}
/**
* Can be set up
*
* @param string $user
* @return boolean
* @description configure the initial filesystem based on the configuration
*/
public static function setupFS($user = '', $fullInit = true) {
//setting up the filesystem twice can only lead to trouble
if (self::$fsSetup) {
return false;
}
\OC::$server->getEventLogger()->start('setup_fs', 'Setup filesystem');
// If we are not forced to load a specific user we load the one that is logged in
if ($user === null) {
$user = '';
} elseif ($user == "" && OC_User::isLoggedIn()) {
$user = OC_User::getUser();
}
// load all filesystem apps before, so no setup-hook gets lost
OC_App::loadApps(['filesystem']);
// the filesystem will finish when $user is not empty,
// mark fs setup here to avoid doing the setup from loading
// OC_Filesystem
if ($user != '') {
self::$fsSetup = true;
}
\OC\Files\Filesystem::initMountManager();
\OC\Files\Filesystem::logWarningWhenAddingStorageWrapper(false);
\OC\Files\Filesystem::addStorageWrapper('mount_options', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
if ($storage->instanceOfStorage('\OC\Files\Storage\Common')) {
/** @var \OC\Files\Storage\Common $storage */
'@phan-var \OC\Files\Storage\Common $storage';
$storage->setMountOptions($mount->getOptions());
}
return $storage;
});
\OC\Files\Filesystem::addStorageWrapper('enable_sharing', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
if (!$mount->getOption('enable_sharing', true)) {
return new \OC\Files\Storage\Wrapper\PermissionsMask([
'storage' => $storage,
'mask' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_SHARE
]);
}
return $storage;
});
\OC\Files\Filesystem::addStorageWrapper('read_only', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
if ($mount->getOption('read_only', false)) {
return new \OC\Files\Storage\Wrapper\PermissionsMask([
'storage' => $storage,
'mask' => \OCP\Constants::PERMISSION_READ | \OCP\Constants::PERMISSION_SHARE
]);
}
return $storage;
});
// install storage availability wrapper, before most other wrappers
\OC\Files\Filesystem::addStorageWrapper('oc_availability', function ($mountPoint, $storage) {
if (!$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
return new \OC\Files\Storage\Wrapper\Availability(['storage' => $storage]);
}
return $storage;
});
// install storage checksum wrapper
\OC\Files\Filesystem::addStorageWrapper('oc_checksum', function ($mountPoint, \OCP\Files\Storage\IStorage $storage) {
if (!$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage')) {
return new \OC\Files\Storage\Wrapper\Checksum(['storage' => $storage]);
}
return $storage;
}, 1);
\OC\Files\Filesystem::addStorageWrapper('oc_encoding', function ($mountPoint, \OCP\Files\Storage $storage, \OCP\Files\Mount\IMountPoint $mount) {
if ($mount->getOption('encoding_compatibility', false) && !$storage->instanceOfStorage('\OCA\Files_Sharing\SharedStorage') && !$storage->isLocal()) {
return new \OC\Files\Storage\Wrapper\Encoding(['storage' => $storage]);
}
return $storage;
});
\OC\Files\Filesystem::addStorageWrapper('oc_quota', function ($mountPoint, $storage) {
// set up quota for home storages, even for other users
// which can happen when using sharing
/**
* @var \OC\Files\Storage\Storage $storage
*/
if ($storage->instanceOfStorage('\OC\Files\Storage\Home')
|| $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage')
) {
/** @var \OC\Files\Storage\Home $storage */
if (\is_object($storage->getUser())) {
$user = $storage->getUser()->getUID();
$quota = OC_Util::getUserQuota($user);
if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
return new \OC\Files\Storage\Wrapper\Quota([
'mountPoint' => $mountPoint,
'storage' => $storage,
'quota' => $quota,
'root' => 'files'
]);
}
}
}
return $storage;
});
OC_Hook::emit('OC_Filesystem', 'preSetup', ['user' => $user]);
\OC\Files\Filesystem::logWarningWhenAddingStorageWrapper(true);
// Make users storage readonly if he is a guest or in a read_only group
$isGuest = \OC::$server->getConfig()->getUserValue(
$user,
'owncloud',
'isGuest',
false
);
if (!$isGuest) {
$readOnlyGroups = \json_decode(\OC::$server->getConfig()->getAppValue(
'core',
'read_only_groups',
'[]'
), true);
if (!\is_array($readOnlyGroups)) {
$readOnlyGroups = [];
}
$readOnlyGroupMemberships = [];
if ($readOnlyGroups) {
$userGroups = \array_keys(
\OC::$server->getGroupManager()->getUserIdGroups($user)
);
$readOnlyGroupMemberships = \array_intersect(
$readOnlyGroups,
$userGroups
);
}
}
if ($isGuest === '1' || !empty($readOnlyGroupMemberships)) {
\OC\Files\Filesystem::addStorageWrapper(
'oc_readonly',
function ($mountPoint, $storage) use ($user) {
if ($mountPoint === '/' || $mountPoint === "/$user/") {
return new \OC\Files\Storage\Wrapper\ReadOnlyJail(
[
'storage' => $storage,
'mask' => \OCP\Constants::PERMISSION_READ,
'path' => 'files'
]
);
}
return $storage;
}
);
}
//check if we are using an object storage
$objectStore = \OC::$server->getSystemConfig()->getValue('objectstore', null);
$objectStore = \OC::$server->getSystemConfig()->getValue('objectstore_multibucket', $objectStore);
if (isset($objectStore)) {
self::initObjectStoreRootFS($objectStore);
} else {
self::initLocalStorageRootFS();
}
if ($user != '' && !OCP\User::userExists($user)) {
\OC::$server->getEventLogger()->end('setup_fs');
return false;
}
//if we aren't logged in, there is no use to set up the filesystem
if ($user != "") {
$userDir = '/' . $user . '/files';
//jail the user into his "home" directory
\OC\Files\Filesystem::init($user, $userDir, $fullInit);
OC_Hook::emit('OC_Filesystem', 'setup', ['user' => $user, 'user_dir' => $userDir]);
}
\OC::$server->getEventLogger()->end('setup_fs');
return true;
}
/**
* check if a password is required for each public link.
* This is deprecated due to not reflecting all the possibilities now. Falling back to
* enforce password for read-only links. Note that read & write or write-only options won't
* be considered here
*
* @return boolean
* @deprecated
*/
public static function isPublicLinkPasswordRequired() {
$appConfig = \OC::$server->getAppConfig();
$enforcePassword = $appConfig->getValue('core', 'shareapi_enforce_links_password_read_only', 'no');
return ($enforcePassword === 'yes') ? true : false;
}
/**
* check if share API enforces a default expire date
*
* @return boolean
*/
public static function isDefaultExpireDateEnforced() {
$isDefaultExpireDateEnabled = \OC::$server->getConfig()->getAppValue('core', 'shareapi_default_expire_date', 'no');
$enforceDefaultExpireDate = false;
if ($isDefaultExpireDateEnabled === 'yes') {
$value = \OC::$server->getConfig()->getAppValue('core', 'shareapi_enforce_expire_date', 'no');
$enforceDefaultExpireDate = ($value === 'yes') ? true : false;
}
return $enforceDefaultExpireDate;
}
/**
* Get the quota of a user
*
* @param string|IUser $userId
* @return int Quota bytes
*/
public static function getUserQuota($userId) {
if ($userId instanceof IUser) {
$user = $userId;
} else {
$user = \OC::$server->getUserManager()->get($userId);
}
if ($user === null) {
return \OCP\Files\FileInfo::SPACE_UNLIMITED;
}
$userQuota = $user->getQuota();
if ($userQuota === null || $userQuota === 'default') {
$userQuota = \OC::$server->getConfig()->getAppValue('files', 'default_quota', 'none');
}
if ($userQuota === null || $userQuota === 'none') {
return \OCP\Files\FileInfo::SPACE_UNLIMITED;
}
return OC_Helper::computerFileSize($userQuota);
}
/**
* copies the skeleton to the users /files
*
* @param String $userId
* @param \OCP\Files\Folder $userDirectory
* @throws \OC\HintException
*/
public static function copySkeleton($userId, \OCP\Files\Folder $userDirectory) {
$skeletonDirectory = \OC::$server->getConfig()->getSystemValue('skeletondirectory', \OC::$SERVERROOT . '/core/skeleton');
// An empty setting for skeletondirectory means that no skeleton is required.
if ($skeletonDirectory === '') {
return;
}
if (!\is_dir($skeletonDirectory)) {
throw new \OC\HintException('The skeleton folder '.$skeletonDirectory.' is not accessible');
}
if (!empty($skeletonDirectory)) {
\OCP\Util::writeLog(
'files_skeleton',
'copying skeleton for '.$userId.' from '.$skeletonDirectory.' to '.$userDirectory->getFullPath('/'),
\OCP\Util::DEBUG
);
self::copyr($skeletonDirectory, $userDirectory);
// update the file cache
$userDirectory->getStorage()->getScanner()->scan('', \OC\Files\Cache\Scanner::SCAN_RECURSIVE);
}
}
/**
* copies a directory recursively by using streams
*
* @param string $source
* @param \OCP\Files\Folder $target
* @return void
* @throws NoReadAccessException
*/
public static function copyr($source, \OCP\Files\Folder $target) {
$dir = @\opendir($source);
if ($dir === false) {
throw new NoReadAccessException('No read permission for folder ' . $source);
}
while (($file = \readdir($dir)) !== false) {
if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
if (\is_dir($source . '/' . $file)) {
$child = $target->newFolder($file);
self::copyr($source . '/' . $file, $child);
} else {
$sourceFileHandle = @\fopen($source . '/' . $file, 'r');
if ($sourceFileHandle === false) {
throw new NoReadAccessException('No read permission for file ' . $file);
}
$child = $target->newFile($file);
$targetFileHandle = $child->fopen('w');
\stream_copy_to_stream($sourceFileHandle, $targetFileHandle);
\fclose($targetFileHandle);
\fclose($sourceFileHandle);
// update cache sizes
$cache = $target->getStorage()->getCache();
if ($cache instanceof \OC\Files\Cache\Cache) {
$cache->correctFolderSize($child->getInternalPath());
}
}
}
}
\closedir($dir);
}
/**
* @return void
*/
public static function tearDownFS() {
\OC\Files\Filesystem::tearDown();
self::$fsSetup = false;
self::$rootMounted = false;
}
/**
* get the current installed version of ownCloud
*
* @return array
*/
public static function getVersion() {
OC_Util::loadVersion();
return self::$version['OC_Version'];
}
/**
* get the current installed version string of ownCloud
*
* @return string
*/
public static function getVersionString() {
OC_Util::loadVersion();
return self::$version['OC_VersionString'];
}
/**
* @description get the current installed edition of ownCloud.
* There is the community edition that returns "Community" and
* the enterprise edition that returns "Enterprise".
* @return string
*/
public static function getEditionString() {
$licenseManager = \OC::$server->getLicenseManager();
// TODO: Need to open method in the licenseManager to expose the license type
$licenseMessage = $licenseManager->getLicenseMessageFor('core');
$licenseState = $licenseMessage['license_state'];
$licenseType = $licenseMessage['type'];
if ($licenseState !== ILicenseManager::LICENSE_STATE_MISSING &&
$licenseState !== ILicenseManager::LICENSE_STATE_INVALID
) {
// if it's a expired demo key, we need to return community
if ($licenseState === ILicenseManager::LICENSE_STATE_EXPIRED && $licenseType !== 0) {
/**
* TODO: licenseType === 0 is documented as "normal" license in the
* ILicenseManager::getLicenseMessageFor method
* This needs to be properly exposed as constant by the ILicenseManager
*/
return OC_Util::EDITION_COMMUNITY;
}
return OC_Util::EDITION_ENTERPRISE;
} else {
return OC_Util::EDITION_COMMUNITY;
}
}
/**
* @description get the update channel of the current installed of ownCloud.
* @return string
*/
public static function getChannel() {
OC_Util::loadVersion();
return self::$version['OC_Channel'];
}
/**
* @description get the build number of the current installed of ownCloud.
* @return string
*/
public static function getBuild() {
OC_Util::loadVersion();
return self::$version['OC_Build'];
}
/**
* @description load the version.php into the session as cache
*/
private static function loadVersion() {
require __DIR__ . '/../../../version.php';
/** @var $OC_Version string */
/** @var $OC_VersionString string */
/** @var $OC_Build string */
/** @var $OC_Channel string */
self::$version = [
'OC_Version' => $OC_Version,
'OC_VersionString' => $OC_VersionString,
'OC_Build' => $OC_Build,
'OC_Channel' => $OC_Channel,
];
// Allow overriding update channel
if (\OC::$server->getSystemConfig()->getValue('installed', false)) {
$channel = \OC::$server->getConfig()->getAppValue('core', 'OC_Channel', $OC_Channel);
self::$version['OC_Channel'] = $channel;
}
}
/**
* generates a path for JS/CSS files. If no application is provided it will create the path for core.
*
* @param string $application application to get the files from
* @param string $directory directory within this application (css, js, vendor, etc)
* @param string $file the file inside of the above folder
* @return string the path
*/
private static function generatePath($application, $directory, $file) {
if ($file === null) {
$file = $application;
$application = "";
}
if (!empty($application)) {
return "$application/$directory/$file";
} else {
return "$directory/$file";
}
}
/**
* add a javascript file
*
* @param string $application application id
* @param string|null $file filename
* @param bool $prepend prepend the Script to the beginning of the list
* @return void
*/
public static function addScript($application, $file = null, $prepend = false) {
$path = OC_Util::generatePath($application, 'js', $file);
// core js files need separate handling
if ($application !== 'core' && $file !== null) {
self::addTranslations($application);
}
self::addExternalResource($application, $prepend, $path, "script");
}
/**
* add a javascript file from the vendor sub folder
*
* @param string $application application id
* @param string|null $file filename
* @param bool $prepend prepend the Script to the beginning of the list
* @return void
*/
public static function addVendorScript($application, $file = null, $prepend = false) {
$path = OC_Util::generatePath($application, 'vendor', $file);
self::addExternalResource($application, $prepend, $path, "script");
}
/**
* add a translation JS file
*
* @param string $application application id
* @param string $languageCode language code, defaults to the current language
* @param bool $prepend prepend the Script to the beginning of the list
*/
public static function addTranslations($application, $languageCode = null, $prepend = false) {
if ($languageCode === null) {
$languageCode = \OC::$server->getL10NFactory()->findLanguage($application);
}
if (!empty($application)) {
$path = "$application/l10n/$languageCode";
} else {
$path = "l10n/$languageCode";
}
self::addExternalResource($application, $prepend, $path, "script");
}
/**
* add a css file
*
* @param string $application application id
* @param string|null $file filename
* @param bool $prepend prepend the Style to the beginning of the list
* @return void
*/
public static function addStyle($application, $file = null, $prepend = false) {
$path = OC_Util::generatePath($application, 'css', $file);
self::addExternalResource($application, $prepend, $path, "style");
}
/**
* add a css file from the vendor sub folder
*
* @param string $application application id
* @param string|null $file filename
* @param bool $prepend prepend the Style to the beginning of the list
* @return void
*/
public static function addVendorStyle($application, $file = null, $prepend = false) {
$path = OC_Util::generatePath($application, 'vendor', $file);
self::addExternalResource($application, $prepend, $path, "style");
}
/**
* add an external resource css/js file
*
* @param string $application application id
* @param bool $prepend prepend the file to the beginning of the list
* @param string $path
* @param string $type (script or style)
* @return void
*/
private static function addExternalResource($application, $prepend, $path, $type = "script") {
if ($type === "style") {
if (!\in_array($path, self::$styles)) {
if ($prepend === true) {
\array_unshift(self::$styles, $path);
} else {
self::$styles[] = $path;
}
}
} elseif ($type === "script") {
if (!\in_array($path, self::$scripts)) {
if ($prepend === true) {
\array_unshift(self::$scripts, $path);
} else {
self::$scripts [] = $path;
}
}
}
}
/**
* Add a custom element to the header
* If $text is null then the element will be written as empty element.
* So use "" to get a closing tag.
* @param string $tag tag name of the element
* @param array $attributes array of attributes for the element
* @param string $text the text content for the element
*/
public static function addHeader($tag, $attributes, $text=null) {
self::$headers[] = [
'tag' => $tag,
'attributes' => $attributes,
'text' => $text
];
}
/**
* formats a timestamp in the "right" way
*
* @param int $timestamp
* @param bool $dateOnly option to omit time from the result
* @param DateTimeZone|string $timeZone where the given timestamp shall be converted to
* @return string timestamp
*
* @deprecated Use \OC::$server->query('DateTimeFormatter') instead
*/
public static function formatDate($timestamp, $dateOnly = false, $timeZone = null) {
if ($timeZone !== null && !$timeZone instanceof \DateTimeZone) {
$timeZone = new \DateTimeZone($timeZone);
}
/** @var \OC\DateTimeFormatter $formatter */
$formatter = \OC::$server->query('DateTimeFormatter');
if ($dateOnly) {
return $formatter->formatDate($timestamp, 'long', $timeZone);
}
return $formatter->formatDateTime($timestamp, 'long', 'long', $timeZone);
}
/**
* check if the current server configuration is suitable for ownCloud
*
* @param \OCP\IConfig $config
* @return array arrays with error messages and hints
*/
public static function checkServer(\OCP\IConfig $config) {
$l = \OC::$server->getL10N('lib');
$errors = [];
$CONFIG_DATADIRECTORY = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data');
if (!self::needUpgrade($config) && $config->getSystemValue('installed', false)) {
// this check needs to be done every time
$errors = self::checkDataDirectoryValidity($CONFIG_DATADIRECTORY);
}
// Assume that if checkServer() succeeded before in this session, then all is fine.
if (\OC::$server->getSession()->exists('checkServer_succeeded') && \OC::$server->getSession()->get('checkServer_succeeded')) {
return $errors;
}
$webServerRestart = false;
$setup = new \OC\Setup(
$config,
\OC::$server->getIniWrapper(),
\OC::$server->getL10N('lib'),
new \OC_Defaults(),
\OC::$server->getLogger(),
\OC::$server->getSecureRandom()
);
$urlGenerator = \OC::$server->getURLGenerator();
$availableDatabases = $setup->getSupportedDatabases();
if (empty($availableDatabases)) {
$errors[] = [
'error' => $l->t('No database drivers (sqlite, mysql, or postgresql) installed.'),
'hint' => '' //TODO: sane hint
];
$webServerRestart = true;
}
// Check if config folder is writable.
if (!\OC::$server->getConfig()->isSystemConfigReadOnly()) {
if (!\is_writable(OC::$configDir) or !\is_readable(OC::$configDir)) {
$errors[] = [
'error' => $l->t('Cannot write into "config" directory'),
'hint' => $l->t(
'This can usually be fixed by '
. '%sgiving the webserver write access to the config directory%s.',
['<a href="' . $urlGenerator->linkToDocs('admin-dir_permissions') . '" target="_blank" rel="noreferrer">', '</a>']
)
];
}
}
// Create root dir.
if ($config->getSystemValue('installed', false)) {
if (!\is_dir($CONFIG_DATADIRECTORY)) {
$success = @\mkdir($CONFIG_DATADIRECTORY);
if ($success) {
$errors = \array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
} else {
$errors[] = [
'error' => $l->t('Cannot create "data" directory'),
'hint' => $l->t(
'This can usually be fixed by '
. '<a href="%s" target="_blank" rel="noreferrer">giving the webserver write access to the root directory</a>.',
[$urlGenerator->linkToDocs('admin-dir_permissions')]
)
];
}
} elseif (!\is_writable($CONFIG_DATADIRECTORY) or !\is_readable($CONFIG_DATADIRECTORY)) {
//common hint for all file permissions error messages
$permissionsHint = $l->t(
'Permissions can usually be fixed by '
. '%sgiving the webserver write access to the root directory%s.',
['<a href="' . $urlGenerator->linkToDocs('admin-dir_permissions') . '" target="_blank" rel="noreferrer">', '</a>']
);
$errors[] = [
'error' => 'Your Data directory is not writable by ownCloud',
'hint' => $permissionsHint
];
} else {
$errors = \array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
}
}
if (!OC_Util::isSetLocaleWorking()) {
$errors[] = [
'error' => $l->t(
'Setting locale to %s failed',
['en_US.UTF-8/fr_FR.UTF-8/es_ES.UTF-8/de_DE.UTF-8/ru_RU.UTF-8/'
. 'pt_BR.UTF-8/it_IT.UTF-8/ja_JP.UTF-8/zh_CN.UTF-8']
),
'hint' => $l->t('Please install one of these locales on your system and restart your webserver.')
];
}
// Contains the dependencies that should be checked against
// classes = class_exists
// functions = function_exists
// defined = defined
// ini = ini_get
// If the dependency is not found the missing module name is shown to the EndUser
// When adding new checks always verify that they pass on CI as well
$dependencies = [
'classes' => [
'ZipArchive' => 'zip',
'DOMDocument' => 'dom',
'XMLWriter' => 'XMLWriter',
'XMLReader' => 'XMLReader',
'Collator' => 'intl',
],
'functions' => [
'xml_parser_create' => 'libxml',
'mb_strcut' => 'mb multibyte',
'ctype_digit' => 'ctype',
'json_encode' => 'JSON',
'gd_info' => 'GD',
'gzencode' => 'zlib',
'iconv' => 'iconv',
'simplexml_load_string' => 'SimpleXML',
'hash' => 'HASH Message Digest Framework',
'curl_init' => 'cURL',
],
'defined' => [
'PDO::ATTR_DRIVER_NAME' => 'PDO'
],
'ini' => [
'default_charset' => 'UTF-8',
],
];
$missingDependencies = [];
$invalidIniSettings = [];
$moduleHint = $l->t('Please ask your server administrator to install the module.');
/**
* FIXME: The dependency check does not work properly on HHVM on the moment
* and prevents installation. Once HHVM is more compatible with our
* approach to check for these values we should re-enable those
* checks.
*/
$iniWrapper = \OC::$server->getIniWrapper();
if (!self::runningOnHhvm()) {
foreach ($dependencies['classes'] as $class => $module) {
if (!\class_exists($class)) {
$missingDependencies[] = $module;
}
}
foreach ($dependencies['functions'] as $function => $module) {
if (!\function_exists($function)) {
$missingDependencies[] = $module;
}
}
foreach ($dependencies['defined'] as $defined => $module) {
if (!\defined($defined)) {
$missingDependencies[] = $module;
}
}
foreach ($dependencies['ini'] as $setting => $expected) {
if (\is_bool($expected)) {
if ($iniWrapper->getBool($setting) !== $expected) {
$invalidIniSettings[] = [$setting, $expected];
}
}
if (\is_int($expected)) {
if ($iniWrapper->getNumeric($setting) !== $expected) {
$invalidIniSettings[] = [$setting, $expected];
}
}
if (\is_string($expected)) {
if (\strtolower($iniWrapper->getString($setting)) !== \strtolower($expected)) {
$invalidIniSettings[] = [$setting, $expected];
}
}
}
}
foreach ($missingDependencies as $missingDependency) {
$errors[] = [
'error' => $l->t('PHP module %s not installed.', [$missingDependency]),
'hint' => $moduleHint
];
$webServerRestart = true;
}
foreach ($invalidIniSettings as $setting) {
if (\is_bool($setting[1])) {
$setting[1] = ($setting[1]) ? 'on' : 'off';
}
$errors[] = [
'error' => $l->t('PHP setting "%s" is not set to "%s".', [$setting[0], \var_export($setting[1], true)]),
'hint' => $l->t('Adjusting this setting in php.ini will make ownCloud run again')
];
$webServerRestart = true;
}
/**
* The mbstring.func_overload check can only be performed if the mbstring
* module is installed as it will return null if the checking setting is
* not available and thus a check on the boolean value fails.
*
* TODO: Should probably be implemented in the above generic dependency
* check somehow in the long-term.
*/
if ($iniWrapper->getBool('mbstring.func_overload') !== null &&
$iniWrapper->getBool('mbstring.func_overload') === true) {
$errors[] = [
'error' => $l->t('mbstring.func_overload is set to "%s" instead of the expected value "0"', [$iniWrapper->getString('mbstring.func_overload')]),
'hint' => $l->t('To fix this issue set <code>mbstring.func_overload</code> to <code>0</code> in your php.ini')
];
}
if (\function_exists('xml_parser_create') &&
\version_compare('2.7.0', LIBXML_DOTTED_VERSION) === 1) {
$errors[] = [
'error' => $l->t('libxml2 2.7.0 is at least required. Currently %s is installed.', [LIBXML_DOTTED_VERSION]),
'hint' => $l->t('To fix this issue update your libxml2 version and restart your web server.')
];
}
if (!self::isAnnotationsWorking()) {
$errors[] = [
'error' => $l->t('PHP is apparently set up to strip inline doc blocks. This will make several core apps inaccessible.'),
'hint' => $l->t('This is probably caused by a cache/accelerator such as Zend OPcache or eAccelerator.')
];
}
if (!\OC::$CLI && $webServerRestart) {
$errors[] = [
'error' => $l->t('PHP modules have been installed, but they are still listed as missing?'),
'hint' => $l->t('Please ask your server administrator to restart the web server.')
];
}
$errors = \array_merge($errors, self::checkDatabaseVersion());
// Cache the result of this function
\OC::$server->getSession()->set('checkServer_succeeded', \count($errors) == 0);
return $errors;
}
/**
* Check the database version
*
* @return array errors array
*/
public static function checkDatabaseVersion() {
$l = \OC::$server->getL10N('lib');
$errors = [];
$dbType = \OC::$server->getSystemConfig()->getValue('dbtype', 'sqlite');
if ($dbType === 'pgsql') {
// check PostgreSQL version
try {
$result = \OC_DB::executeAudited('SHOW SERVER_VERSION');
$data = $result->fetchRow();
if (isset($data['server_version'])) {
$version = $data['server_version'];
if (\version_compare($version, '9.0.0', '<')) {
$errors[] = [
'error' => $l->t('PostgreSQL >= 9 required'),
'hint' => $l->t('Please upgrade your database version')
];
}
}
} catch (\Doctrine\DBAL\DBALException $e) {
$logger = \OC::$server->getLogger();
$logger->warning('Error occurred while checking PostgreSQL version, assuming >= 9');
$logger->logException($e);
}
}
return $errors;
}
/**
* Check for correct file permissions of data directory
*
* @param string $dataDirectory
* @return array arrays with error messages and hints
*/
public static function checkDataDirectoryPermissions($dataDirectory) {
$l = \OC::$server->getL10N('lib');
$errors = [];
$permissionsModHint = $l->t('Please change the permissions to 0770 so that the directory'
. ' cannot be listed by other users.');
$perms = \substr(\decoct(@\fileperms($dataDirectory)), -3);
if (\substr($perms, -1) != '0') {
\chmod($dataDirectory, 0770);
\clearstatcache();
$perms = \substr(\decoct(@\fileperms($dataDirectory)), -3);
if (\substr($perms, 2, 1) != '0') {
$errors[] = [
'error' => $l->t('Your Data directory is readable by other users'),
'hint' => $permissionsModHint
];
}
}
return $errors;
}
/**
* Check that the data directory exists and is valid by
* checking the existence of the ".ocdata" file.
*
* @param string $dataDirectory data directory path
* @return array errors found
*/
public static function checkDataDirectoryValidity($dataDirectory) {
$l = \OC::$server->getL10N('lib');
$errors = [];
if ($dataDirectory[0] !== '/') {
$errors[] = [
'error' => $l->t('Your Data directory must be an absolute path'),
'hint' => $l->t('Check the value of "datadirectory" in your configuration')
];
}
if (!\file_exists($dataDirectory . '/.ocdata')) {
$errors[] = [
'error' => $l->t('Your Data directory is invalid'),
'hint' => $l->t('Please check that the data directory contains a file' .
' ".ocdata" in its root.')
];
}
return $errors;
}
/**
* @return bool
* @throws LoginException
*/
private static function checkPreSignedUrl(): bool {
$request = \Sabre\HTTP\Sapi::createFromServerArray($_SERVER);
$verifier = new Verifier($request, \OC::$server->getConfig());
if ($verifier->isSignedRequest()) {
if (!$verifier->signedRequestIsValid()) {
throw new LoginException('Invalid pre signed url');
}
$urlCredential = $verifier->getUrlCredential();
$user = \OC::$server->getUserManager()->get($urlCredential);
if ($user === null) {
$message = \OC::$server->getL10N('dav')->t('User unknown');
throw new LoginException($message);
}
if (!$user->isEnabled()) {
$message = \OC::$server->getL10N('dav')->t('User disabled');
throw new LoginException($message);
}
\OC::$server->getUserSession()->setUser($user);
\OC_Util::setupFS($urlCredential);
\OC::$server->getSession()->close();
return true;
}
return false;
}
/**
* Check if the user is logged in, redirects to home if not. With
* redirect URL parameter to the request URI.
*
* @param bool $allowPreSigned
* @return void
* @throws LoginException
*/
public static function checkLoggedIn($allowPreSigned = false): void {
if ($allowPreSigned && self::checkPreSignedUrl()) {
return;
}
// Check if we are a user
$userSession = \OC::$server->getUserSession();
if ($userSession && !$userSession->isLoggedIn()) {
\header(
'Location: ' . \OC::$server->getURLGenerator()->linkToRoute(
'core.login.showLoginForm',
[
'redirect_url' => \urlencode(\OC::$server->getRequest()->getRequestUri()),
]
)
);
exit();
}
// Redirect to index page if 2FA challenge was not solved yet
if (\OC::$server->getTwoFactorAuthManager()->needsSecondFactor()) {
\header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
exit();
}
// Redirect to index page if any IAuthModule check fails
try {
\OC::$server->getAccountModuleManager()->check($userSession->getUser());
} catch (AccountCheckException $ex) {
\header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
exit();
}
}
/**
* Check if the user is a admin, redirects to home if not
*
* @return void
*/
public static function checkAdminUser() {
OC_Util::checkLoggedIn();
if (!OC_User::isAdminUser(OC_User::getUser())) {
\header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
exit();
}
}
/**
* Check if it is allowed to remember login.
*
* @note Every app can set 'rememberlogin' to 'false' to disable the remember login feature
*
* @return bool
*/
public static function rememberLoginAllowed() {
$apps = OC_App::getEnabledApps();
foreach ($apps as $app) {
$appInfo = OC_App::getAppInfo($app);
if (isset($appInfo['rememberlogin']) && $appInfo['rememberlogin'] === 'false') {
return false;
}
}
return true;
}
/**
* Check if the user is a subadmin, redirects to home if not
*
* @return null|boolean $groups where the current user is subadmin
*/
public static function checkSubAdminUser() {
OC_Util::checkLoggedIn();
$userObject = \OC::$server->getUserSession()->getUser();
$isSubAdmin = false;
if ($userObject !== null) {
$isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
}
if (!$isSubAdmin) {
\header('Location: ' . \OCP\Util::linkToAbsolute('', 'index.php'));
exit();
}
return true;
}
/**
* Returns the URL of the default page
* based on the system configuration and
* the apps visible for the current user
*
* @return string URL
*/
public static function getDefaultPageUrl() {
$urlGenerator = \OC::$server->getURLGenerator();
// Deny the redirect if the URL contains a @
// This prevents unvalidated redirects like ?redirect_url=:user@domain.com
if (isset($_REQUEST['redirect_url']) && \strpos($_REQUEST['redirect_url'], '@') === false) {
$location = $urlGenerator->getAbsoluteURL(\urldecode($_REQUEST['redirect_url']));
} else {
$defaultPage = \OC::$server->getAppConfig()->getValue('core', 'defaultpage');
if ($defaultPage) {
$location = $urlGenerator->getAbsoluteURL($defaultPage);
} else {
$appId = 'files';
$uid = \OC_User::getUser();
$config = \OC::$server->getConfig();
$defaultApps = \explode(',', $config->getSystemValue('defaultapp', 'files'));
if ($uid) {
$userDefaultApp = $config->getUserValue($uid, 'core', 'defaultapp', null);
if ($userDefaultApp) {
\array_unshift($defaultApps, $userDefaultApp);
}
}
// find the first app that is enabled for the current user
foreach ($defaultApps as $defaultApp) {
$defaultApp = OC_App::cleanAppId(\strip_tags($defaultApp));
if (static::getAppManager()->isEnabledForUser($defaultApp)) {
$appId = $defaultApp;
break;
}
}
if (\getenv('front_controller_active') === 'true') {
$location = $urlGenerator->getAbsoluteURL('/apps/' . $appId . '/');
} else {
$location = $urlGenerator->getAbsoluteURL('/index.php/apps/' . $appId . '/');
}
}
}
return $location;
}
/**
* Redirect to the user default page
*
* @return void
*/
public static function redirectToDefaultPage() {
$location = self::getDefaultPageUrl();
\header('Location: ' . $location);
exit();
}
/**
* get an id unique for this instance
*
* @return string
*/
public static function getInstanceId() {
$id = \OC::$server->getSystemConfig()->getValue('instanceid', null);
if ($id === null) {
// We need to guarantee at least one letter in instanceid so it can be used as the session_name
$id = 'oc' . \OC::$server->getSecureRandom()->generate(10, \OCP\Security\ISecureRandom::CHAR_LOWER.\OCP\Security\ISecureRandom::CHAR_DIGITS);
\OC::$server->getSystemConfig()->setValue('instanceid', $id);
}
return $id;
}
/**
* Public function to sanitize HTML
*
* This function is used to sanitize HTML and should be applied on any
* string or array of strings before displaying it on a web page.
*
* @param string|array $value
* @return string|array an array of sanitized strings or a single sanitized string, depends on the input parameter.
*/
public static function sanitizeHTML($value) {
if (\is_array($value)) {
$value = \array_map(function ($value) {
return self::sanitizeHTML($value);
}, $value);
} else {
// Specify encoding for PHP<5.4
$value = \htmlspecialchars((string)$value, ENT_QUOTES, 'UTF-8');
}
return $value;
}
/**
* Public function to encode url parameters
*
* This function is used to encode path to file before output.
* Encoding is done according to RFC 3986 with one exception:
* Character '/' is preserved as is.
*
* @param string $component part of URI to encode
* @return string
*/
public static function encodePath($component) {
$encoded = \rawurlencode($component);
$encoded = \str_replace('%2F', '/', $encoded);
return $encoded;
}
public function createHtaccessTestFile(\OCP\IConfig $config) {
// php dev server does not support htaccess
if (\php_sapi_name() === 'cli-server') {
return false;
}
if (\OC::$CLI) {
return false;
}
// testdata
$fileName = '/htaccesstest.txt';
// test content containing the string "HTACCESSFAIL"
$testContent = 'HTACCESSFAIL: This is used for testing whether htaccess is properly enabled to disallow access from the outside. This file can be safely removed.';
// creating a test file
$testFile = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
if (\file_exists($testFile)) {// already running this test, possible recursive call
return false;
}
$fp = @\fopen($testFile, 'w');
if (!$fp) {
throw new OC\HintException(
'Can\'t create test file to check for working .htaccess file.',
'Make sure it is possible for the webserver to write to ' . $testFile
);
}
\fwrite($fp, $testContent);
\fclose($fp);
}
/**
* Check if the setlocal call does not work. This can happen if the right
* local packages are not available on the server.
*
* @return bool
*/
public static function isSetLocaleWorking() {
if (\basename('§') === '§') {
return true;
}
\setlocale(LC_ALL, 'C.UTF-8', 'C');
\setlocale(LC_CTYPE, 'en_US.UTF-8', 'fr_FR.UTF-8', 'es_ES.UTF-8', 'de_DE.UTF-8', 'ru_RU.UTF-8', 'pt_BR.UTF-8', 'it_IT.UTF-8', 'ja_JP.UTF-8', 'zh_CN.UTF-8', '0');
return \basename('§') === '§';
}
/**
* Check if it's possible to get the inline annotations
*
* @return bool
*/
public static function isAnnotationsWorking() {
$reflection = new \ReflectionMethod(__METHOD__);
$docs = $reflection->getDocComment();
return (\is_string($docs) && \strlen($docs) > 50);
}
/**
* Check if the PHP module fileinfo is loaded.
*
* @return bool
*/
public static function fileInfoLoaded() {
return \function_exists('finfo_open');
}
/**
* clear all levels of output buffering
*
* @return void
*/
public static function obEnd() {
while (\ob_get_level()) {
\ob_end_clean();
}
}
/**
* Checks whether the server is running on the given OS type
*
* @param string $osType linux|mac|bsd etc
* @return bool true if running on that OS type, false otherwise
*/
public static function runningOn($osType) {
$osType = \strtolower($osType) === 'mac' ? 'darwin' : \strtolower($osType);
if ($osType === 'bsd') {
return (\strpos(\strtolower(PHP_OS), $osType) !== false);
} else {
return (\strtolower(\substr(PHP_OS, 0, \strlen($osType))) === $osType);
}
}
/**
* Checks whether server is running on HHVM
*
* @return bool True if running on HHVM, false otherwise
*/
public static function runningOnHhvm() {
return \defined('HHVM_VERSION');
}
/**
* Handles the case that there may not be a theme, then check if a "default"
* theme exists and take that one
*
* @return \OCP\Theme\ITheme the theme
*/
public static function getTheme() {
/** @var \OCP\Theme\IThemeService $themeService */
$themeService = \OC::$server->query('ThemeService');
return $themeService->getTheme();
}
/**
* Clear a single file from the opcode cache
* This is useful for writing to the config file
* in case the opcode cache does not re-validate files
* Returns true if successful, false if unsuccessful:
* caller should fall back on clearing the entire cache
* with clearOpcodeCache() if unsuccessful
*
* @param string $path the path of the file to clear from the cache
* @return bool true if underlying function returns true, otherwise false
*/
public static function deleteFromOpcodeCache($path) {
$ret = false;
if ($path) {
// APC >= 3.1.1
if (\function_exists('apc_delete_file')) {
$ret = @apc_delete_file($path);
}
// Zend OpCache >= 7.0.0, PHP >= 5.5.0
if (\function_exists('opcache_invalidate')) {
$ret = \opcache_invalidate($path);
}
}
return $ret;
}
/**
* Clear the opcode cache if one exists
* This is necessary for writing to the config file
* in case the opcode cache does not re-validate files
*
* @return void
*/
public static function clearOpcodeCache() {
// APC
if (\function_exists('apc_clear_cache')) {
\apc_clear_cache();
}
// Zend Opcache
if (\function_exists('accelerator_reset')) {
accelerator_reset();
}
// Opcache (PHP >= 5.5)
if (\function_exists('opcache_reset')) {
\opcache_reset();
}
}
/**
* Normalize a unicode string
*
* @param string $value a not normalized string
* @return bool|string
*/
public static function normalizeUnicode($value) {
if (Normalizer::isNormalized($value)) {
return $value;
}
$normalizedValue = Normalizer::normalize($value);
if ($normalizedValue === null || $normalizedValue === false) {
\OC::$server->getLogger()->warning('normalizing failed for "' . $value . '"', ['app' => 'core']);
return $value;
}
return $normalizedValue;
}
/**
* @param boolean|string $file
* @return string
*/
public static function basename($file) {
$file = \rtrim($file, '/');
$t = \explode('/', $file);
return \array_pop($t);
}
/**
* Remove the ".part" extension from the path. The "ocTransferId" part added for the uploads
* can also be removed.
* @params string $path the path to be cleaned up
* @params bool $stripTransferId whether the method should also remove the "ocTransferId" if it exists
* @return string the cleaned path
*/
public static function stripPartialFileExtension(string $path, bool $stripTransferId = true): string {
$extension = \pathinfo($path, PATHINFO_EXTENSION);
if ($extension === 'part') {
$newLength = \strlen($path) - 5; // 5 = strlen(".part")
$fPath = \substr($path, 0, $newLength);
// if path also contains a transaction id, we remove it too
$extension = \pathinfo($fPath, PATHINFO_EXTENSION);
if ($stripTransferId && \substr($extension, 0, 12) === 'ocTransferId') { // 12 = strlen("ocTransferId")
$newLength = \strlen($fPath) - \strlen($extension) -1;
$fPath = \substr($fPath, 0, $newLength);
}
return $fPath;
} else {
return $path;
}
}
/**
* A human readable string is generated based on version, channel and build number
*
* @return string
*/
public static function getHumanVersion() {
$version = OC_Util::getVersionString() . ' (' . OC_Util::getChannel() . ')';
$build = OC_Util::getBuild();
if (!empty($build) and OC_Util::getChannel() === 'daily') {
$version .= ' Build:' . $build;
}
return $version;
}
/**
* Returns whether the given file name is valid
*
* @param string $file file name to check
* @return bool true if the file name is valid, false otherwise
* @deprecated use \OC\Files\View::verifyPath()
*/
public static function isValidFileName($file) {
$trimmed = \trim($file);
if ($trimmed === '') {
return false;
}
if (\OC\Files\Filesystem::isIgnoredDir($trimmed)) {
return false;
}
// detect part files
if (\preg_match('/' . \OCP\Files\FileInfo::BLACKLIST_FILES_REGEX . '/', $trimmed) !== 0) {
return false;
}
foreach (\str_split($trimmed) as $char) {
if (\strpos(\OCP\Constants::FILENAME_INVALID_CHARS, $char) !== false) {
return false;
}
}
return true;
}
/**
* Check whether the instance needs to perform an upgrade,
* either when the core version is higher or any app requires
* an upgrade.
*
* @param \OCP\IConfig $config
* @return bool whether the core or any app needs an upgrade
* @throws \OC\HintException When the upgrade from the given version is not allowed
*/
public static function needUpgrade(\OCP\IConfig $config) {
if ($config->getSystemValue('installed', false)) {
$installedVersion = $config->getSystemValue('version', '0.0.0');
$currentVersion = \implode('.', \OCP\Util::getVersion());
$versionDiff = \version_compare($currentVersion, $installedVersion);
if ($versionDiff > 0) {
return true;
} elseif ($config->getSystemValue('debug', false) && $versionDiff < 0) {
// downgrade with debug
$installedMajor = \explode('.', $installedVersion);
$installedMajor = $installedMajor[0] . '.' . $installedMajor[1];
$currentMajor = \explode('.', $currentVersion);
$currentMajor = $currentMajor[0] . '.' . $currentMajor[1];
if ($installedMajor === $currentMajor) {
// Same major, allow downgrade for developers
return true;
} else {
// downgrade attempt, throw exception
throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
}
} elseif ($versionDiff < 0) {
// downgrade attempt, throw exception
throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
}
// also check for upgrades for apps (independently from the user)
$apps = \OC_App::getEnabledApps(false, true);
$shouldUpgrade = false;
foreach ($apps as $app) {
if (\OC_App::shouldUpgrade($app)) {
$shouldUpgrade = true;
break;
}
}
return $shouldUpgrade;
} else {
return false;
}
}
}