Current File : /www/varak.net/nextcloud.varak.net/lib/private/legacy/OC_Util.php
<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
use bantu\IniGetWrapper\IniGetWrapper;
use OC\Authentication\TwoFactorAuth\Manager as TwoFactorAuthManager;
use OC\Files\SetupManager;
use OCP\Files\Template\ITemplateManager;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
use OCP\IGroupManager;
use OCP\IURLGenerator;
use OCP\IUser;
use OCP\L10N\IFactory;
use OCP\Security\ISecureRandom;
use OCP\Share\IManager;
use Psr\Log\LoggerInterface;
class OC_Util {
public static $scripts = [];
public static $styles = [];
public static $headers = [];
/** @var array Local cache of version.php */
private static $versionCache = null;
protected static function getAppManager() {
return \OC::$server->getAppManager();
}
/**
* Setup the file system
*
* @param string|null $user
* @return boolean
* @description configure the initial filesystem based on the configuration
* @suppress PhanDeprecatedFunction
* @suppress PhanAccessMethodInternal
*/
public static function setupFS(?string $user = '') {
// If we are not forced to load a specific user we load the one that is logged in
if ($user === '') {
$userObject = \OC::$server->get(\OCP\IUserSession::class)->getUser();
} else {
$userObject = \OC::$server->get(\OCP\IUserManager::class)->get($user);
}
/** @var SetupManager $setupManager */
$setupManager = \OC::$server->get(SetupManager::class);
if ($userObject) {
$setupManager->setupForUser($userObject);
} else {
$setupManager->setupRoot();
}
return true;
}
/**
* Check if a password is required for each public link
*
* @param bool $checkGroupMembership Check group membership exclusion
* @return boolean
* @suppress PhanDeprecatedFunction
*/
public static function isPublicLinkPasswordRequired(bool $checkGroupMembership = true) {
/** @var IManager $shareManager */
$shareManager = \OC::$server->get(IManager::class);
return $shareManager->shareApiLinkEnforcePassword($checkGroupMembership);
}
/**
* check if sharing is disabled for the current user
* @param IConfig $config
* @param IGroupManager $groupManager
* @param IUser|null $user
* @return bool
*/
public static function isSharingDisabledForUser(IConfig $config, IGroupManager $groupManager, $user) {
/** @var IManager $shareManager */
$shareManager = \OC::$server->get(IManager::class);
$userId = $user ? $user->getUID() : null;
return $shareManager->sharingDisabledForUser($userId);
}
/**
* check if share API enforces a default expire date
*
* @return bool
* @suppress PhanDeprecatedFunction
*/
public static function isDefaultExpireDateEnforced() {
/** @var IManager $shareManager */
$shareManager = \OC::$server->get(IManager::class);
return $shareManager->shareApiLinkDefaultExpireDateEnforced();
}
/**
* Get the quota of a user
*
* @param IUser|null $user
* @return int|\OCP\Files\FileInfo::SPACE_UNLIMITED|false|float Quota bytes
*/
public static function getUserQuota(?IUser $user) {
if (is_null($user)) {
return \OCP\Files\FileInfo::SPACE_UNLIMITED;
}
$userQuota = $user->getQuota();
if ($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 $userDirectory
* @throws \OCP\Files\NotFoundException
* @throws \OCP\Files\NotPermittedException
* @suppress PhanDeprecatedFunction
*/
public static function copySkeleton($userId, \OCP\Files\Folder $userDirectory) {
/** @var LoggerInterface $logger */
$logger = \OC::$server->get(LoggerInterface::class);
$plainSkeletonDirectory = \OC::$server->getConfig()->getSystemValueString('skeletondirectory', \OC::$SERVERROOT . '/core/skeleton');
$userLang = \OC::$server->get(IFactory::class)->findLanguage();
$skeletonDirectory = str_replace('{lang}', $userLang, $plainSkeletonDirectory);
if (!file_exists($skeletonDirectory)) {
$dialectStart = strpos($userLang, '_');
if ($dialectStart !== false) {
$skeletonDirectory = str_replace('{lang}', substr($userLang, 0, $dialectStart), $plainSkeletonDirectory);
}
if ($dialectStart === false || !file_exists($skeletonDirectory)) {
$skeletonDirectory = str_replace('{lang}', 'default', $plainSkeletonDirectory);
}
if (!file_exists($skeletonDirectory)) {
$skeletonDirectory = '';
}
}
$instanceId = \OC::$server->getConfig()->getSystemValue('instanceid', '');
if ($instanceId === null) {
throw new \RuntimeException('no instance id!');
}
$appdata = 'appdata_' . $instanceId;
if ($userId === $appdata) {
throw new \RuntimeException('username is reserved name: ' . $appdata);
}
if (!empty($skeletonDirectory)) {
$logger->debug('copying skeleton for '.$userId.' from '.$skeletonDirectory.' to '.$userDirectory->getFullPath('/'), ['app' => 'files_skeleton']);
self::copyr($skeletonDirectory, $userDirectory);
// update the file cache
$userDirectory->getStorage()->getScanner()->scan('', \OC\Files\Cache\Scanner::SCAN_RECURSIVE);
/** @var ITemplateManager $templateManager */
$templateManager = \OC::$server->get(ITemplateManager::class);
$templateManager->initializeTemplateDirectory(null, $userId);
}
}
/**
* copies a directory recursively by using streams
*
* @param string $source
* @param \OCP\Files\Folder $target
* @return void
*/
public static function copyr($source, \OCP\Files\Folder $target) {
$logger = \OC::$server->getLogger();
// Verify if folder exists
$dir = opendir($source);
if ($dir === false) {
$logger->error(sprintf('Could not opendir "%s"', $source), ['app' => 'core']);
return;
}
// Copy the files
while (false !== ($file = readdir($dir))) {
if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
if (is_dir($source . '/' . $file)) {
$child = $target->newFolder($file);
self::copyr($source . '/' . $file, $child);
} else {
$child = $target->newFile($file);
$sourceStream = fopen($source . '/' . $file, 'r');
if ($sourceStream === false) {
$logger->error(sprintf('Could not fopen "%s"', $source . '/' . $file), ['app' => 'core']);
closedir($dir);
return;
}
$child->putContent($sourceStream);
}
}
}
closedir($dir);
}
/**
* @return void
* @suppress PhanUndeclaredMethod
*/
public static function tearDownFS() {
/** @var SetupManager $setupManager */
$setupManager = \OC::$server->get(SetupManager::class);
$setupManager->tearDown();
}
/**
* get the current installed version of ownCloud
*
* @return array
*/
public static function getVersion() {
OC_Util::loadVersion();
return self::$versionCache['OC_Version'];
}
/**
* get the current installed version string of ownCloud
*
* @return string
*/
public static function getVersionString() {
OC_Util::loadVersion();
return self::$versionCache['OC_VersionString'];
}
/**
* @deprecated the value is of no use anymore
* @return string
*/
public static function getEditionString() {
return '';
}
/**
* @description get the update channel of the current installed of ownCloud.
* @return string
*/
public static function getChannel() {
OC_Util::loadVersion();
return \OC::$server->getConfig()->getSystemValueString('updater.release.channel', self::$versionCache['OC_Channel']);
}
/**
* @description get the build number of the current installed of ownCloud.
* @return string
*/
public static function getBuild() {
OC_Util::loadVersion();
return self::$versionCache['OC_Build'];
}
/**
* @description load the version.php into the session as cache
* @suppress PhanUndeclaredVariable
*/
private static function loadVersion() {
if (self::$versionCache !== null) {
return;
}
$timestamp = filemtime(OC::$SERVERROOT . '/version.php');
require OC::$SERVERROOT . '/version.php';
/** @var int $timestamp */
self::$versionCache['OC_Version_Timestamp'] = $timestamp;
/** @var string $OC_Version */
self::$versionCache['OC_Version'] = $OC_Version;
/** @var string $OC_VersionString */
self::$versionCache['OC_VersionString'] = $OC_VersionString;
/** @var string $OC_Build */
self::$versionCache['OC_Build'] = $OC_Build;
/** @var string $OC_Channel */
self::$versionCache['OC_Channel'] = $OC_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, $file) {
if (is_null($file)) {
$file = $application;
$application = "";
}
if (!empty($application)) {
return "$application/$directory/$file";
} else {
return "$directory/$file";
}
}
/**
* add a javascript file
*
* @deprecated 24.0.0 - Use \OCP\Util::addScript
*
* @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
*
* @deprecated 24.0.0
*
* @param string $application application id
* @param string|null $languageCode language code, defaults to the current language
* @param bool|null $prepend prepend the Script to the beginning of the list
*/
public static function addTranslations($application, $languageCode = null, $prepend = false) {
if (is_null($languageCode)) {
$languageCode = \OC::$server->get(IFactory::class)->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
* @param bool $prepend prepend the header to the beginning of the list
*/
public static function addHeader($tag, $attributes, $text = null, $prepend = false) {
$header = [
'tag' => $tag,
'attributes' => $attributes,
'text' => $text
];
if ($prepend === true) {
array_unshift(self::$headers, $header);
} else {
self::$headers[] = $header;
}
}
/**
* check if the current server configuration is suitable for ownCloud
*
* @param \OC\SystemConfig $config
* @return array arrays with error messages and hints
*/
public static function checkServer(\OC\SystemConfig $config) {
$l = \OC::$server->getL10N('lib');
$errors = [];
$CONFIG_DATADIRECTORY = $config->getValue('datadirectory', OC::$SERVERROOT . '/data');
if (!self::needUpgrade($config) && $config->getValue('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 = \OCP\Server::get(\OC\Setup::class);
$urlGenerator = \OC::$server->getURLGenerator();
$availableDatabases = $setup->getSupportedDatabases();
if (empty($availableDatabases)) {
$errors[] = [
'error' => $l->t('No database drivers (sqlite, mysql, or postgresql) installed.'),
'hint' => '' //TODO: sane hint
];
$webServerRestart = true;
}
// Check if config folder is writable.
if (!OC_Helper::isReadOnlyConfigEnabled()) {
if (!is_writable(OC::$configDir) or !is_readable(OC::$configDir)) {
$errors[] = [
'error' => $l->t('Cannot write into "config" directory.'),
'hint' => $l->t('This can usually be fixed by giving the web server write access to the config directory. See %s',
[ $urlGenerator->linkToDocs('admin-dir_permissions') ]) . '. '
. $l->t('Or, if you prefer to keep config.php file read only, set the option "config_is_read_only" to true in it. See %s',
[ $urlGenerator->linkToDocs('admin-config') ])
];
}
}
// Check if there is a writable install folder.
if ($config->getValue('appstoreenabled', true)) {
if (OC_App::getInstallPath() === null
|| !is_writable(OC_App::getInstallPath())
|| !is_readable(OC_App::getInstallPath())
) {
$errors[] = [
'error' => $l->t('Cannot write into "apps" directory.'),
'hint' => $l->t('This can usually be fixed by giving the web server write access to the apps directory'
. ' or disabling the App Store in the config file.')
];
}
}
// Create root dir.
if ($config->getValue('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' => $l->t('This can usually be fixed by giving the web server write access to the root directory. See %s',
[$urlGenerator->linkToDocs('admin-dir_permissions')])
];
}
} elseif (!is_writable($CONFIG_DATADIRECTORY) or !is_readable($CONFIG_DATADIRECTORY)) {
// is_writable doesn't work for NFS mounts, so try to write a file and check if it exists.
$testFile = sprintf('%s/%s.tmp', $CONFIG_DATADIRECTORY, uniqid('data_dir_writability_test_'));
$handle = fopen($testFile, 'w');
if (!$handle || fwrite($handle, 'Test write operation') === false) {
$permissionsHint = $l->t('Permissions can usually be fixed by giving the web server write access to the root directory. See %s.',
[$urlGenerator->linkToDocs('admin-dir_permissions')]);
$errors[] = [
'error' => $l->t('Your data directory is not writable.'),
'hint' => $permissionsHint
];
} else {
fclose($handle);
unlink($testFile);
}
} 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 web server.')
];
}
// 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 Travis as well
// for ini settings, see https://github.com/owncloud/administration/blob/master/travis-ci/custom.ini
$dependencies = [
'classes' => [
'ZipArchive' => 'zip',
'DOMDocument' => 'dom',
'XMLWriter' => 'XMLWriter',
'XMLReader' => 'XMLReader',
],
'functions' => [
'xml_parser_create' => 'libxml',
'mb_strcut' => 'mbstring',
'ctype_digit' => 'ctype',
'json_encode' => 'JSON',
'gd_info' => 'GD',
'gzencode' => 'zlib',
'simplexml_load_string' => 'SimpleXML',
'hash' => 'HASH Message Digest Framework',
'curl_init' => 'cURL',
'openssl_verify' => 'OpenSSL',
],
'defined' => [
'PDO::ATTR_DRIVER_NAME' => 'PDO'
],
'ini' => [
'default_charset' => 'UTF-8',
],
];
$missingDependencies = [];
$invalidIniSettings = [];
$iniWrapper = \OC::$server->get(IniGetWrapper::class);
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 => $expected) {
if (strtolower($iniWrapper->getString($setting)) !== strtolower($expected)) {
$invalidIniSettings[] = [$setting, $expected];
}
}
foreach ($missingDependencies as $missingDependency) {
$errors[] = [
'error' => $l->t('PHP module %s not installed.', [$missingDependency]),
'hint' => $l->t('Please ask your server administrator to install the module.'),
];
$webServerRestart = true;
}
foreach ($invalidIniSettings as $setting) {
$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 Nextcloud 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' => $l->t('<code>mbstring.func_overload</code> is set to <code>%s</code> instead of the expected value <code>0</code>.', [$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 (!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.')
];
}
foreach (['secret', 'instanceid', 'passwordsalt'] as $requiredConfig) {
if ($config->getValue($requiredConfig, '') === '' && !\OC::$CLI && $config->getValue('installed', false)) {
$errors[] = [
'error' => $l->t('The required %s config variable is not configured in the config.php file.', [$requiredConfig]),
'hint' => $l->t('Please ask your server administrator to check the Nextcloud configuration.')
];
}
}
// Cache the result of this function
\OC::$server->getSession()->set('checkServer_succeeded', count($errors) == 0);
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) {
if (!\OC::$server->getConfig()->getSystemValueBool('check_data_directory_permissions', true)) {
return [];
}
$perms = substr(decoct(@fileperms($dataDirectory)), -3);
if (substr($perms, -1) !== '0') {
chmod($dataDirectory, 0770);
clearstatcache();
$perms = substr(decoct(@fileperms($dataDirectory)), -3);
if ($perms[2] !== '0') {
$l = \OC::$server->getL10N('lib');
return [[
'error' => $l->t('Your data directory is readable by other people.'),
'hint' => $l->t('Please change the permissions to 0770 so that the directory cannot be listed by other people.'),
]];
}
}
return [];
}
/**
* Check that the data directory exists and is valid by
* checking the existence of the ".ncdata" 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 . '/.ncdata')) {
$errors[] = [
'error' => $l->t('Your data directory is invalid.'),
'hint' => $l->t('Ensure there is a file called "%1$s" in the root of the data directory. It should have the content: "%2$s"', ['.ncdata', '# Nextcloud data directory']),
];
}
return $errors;
}
/**
* Check if the user is logged in, redirects to home if not. With
* redirect URL parameter to the request URI.
*
* @return void
*/
public static function checkLoggedIn() {
// Check if we are a user
if (!\OC::$server->getUserSession()->isLoggedIn()) {
header('Location: ' . \OC::$server->getURLGenerator()->linkToRoute(
'core.login.showLoginForm',
[
'redirect_url' => \OC::$server->getRequest()->getRequestUri(),
]
)
);
exit();
}
// Redirect to 2FA challenge selection if 2FA challenge was not solved yet
if (\OC::$server->get(TwoFactorAuthManager::class)->needsSecondFactor(\OC::$server->getUserSession()->getUser())) {
header('Location: ' . \OC::$server->getURLGenerator()->linkToRoute('core.TwoFactorChallenge.selectChallenge'));
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();
}
}
/**
* Returns the URL of the default page
* based on the system configuration and
* the apps visible for the current user
*
* @return string URL
* @suppress PhanDeprecatedFunction
*/
public static function getDefaultPageUrl() {
/** @var IURLGenerator $urlGenerator */
$urlGenerator = \OC::$server->get(IURLGenerator::class);
return $urlGenerator->linkToDefaultPageUrl();
}
/**
* 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 (is_null($id)) {
// We need to guarantee at least one letter in instanceid so it can be used as the session_name
$id = 'oc' . \OC::$server->get(ISecureRandom::class)->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|string[] $value
* @return string|string[] an array of sanitized strings or a single sanitized string, depends on the input parameter.
*/
public static function sanitizeHTML($value) {
if (is_array($value)) {
/** @var string[] $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;
}
// testdata
$fileName = '/htaccesstest.txt';
$testContent = '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 = $config->getSystemValueString('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
if (file_exists($testFile)) {// already running this test, possible recursive call
return false;
}
$fp = @fopen($testFile, 'w');
if (!$fp) {
throw new \OCP\HintException('Can\'t create test file to check for working .htaccess file.',
'Make sure it is possible for the web server to write to ' . $testFile);
}
fwrite($fp, $testContent);
fclose($fp);
return $testContent;
}
/**
* Check if the .htaccess file is working
*
* @param \OCP\IConfig $config
* @return bool
* @throws Exception
* @throws \OCP\HintException If the test file can't get written.
*/
public function isHtaccessWorking(\OCP\IConfig $config) {
if (\OC::$CLI || !$config->getSystemValueBool('check_for_working_htaccess', true)) {
return true;
}
$testContent = $this->createHtaccessTestFile($config);
if ($testContent === false) {
return false;
}
$fileName = '/htaccesstest.txt';
$testFile = $config->getSystemValueString('datadirectory', OC::$SERVERROOT . '/data') . '/' . $fileName;
// accessing the file via http
$url = \OC::$server->getURLGenerator()->getAbsoluteURL(OC::$WEBROOT . '/data' . $fileName);
try {
$content = \OC::$server->get(IClientService::class)->newClient()->get($url)->getBody();
} catch (\Exception $e) {
$content = false;
}
if (str_starts_with($url, 'https:')) {
$url = 'http:' . substr($url, 6);
} else {
$url = 'https:' . substr($url, 5);
}
try {
$fallbackContent = \OC::$server->get(IClientService::class)->newClient()->get($url)->getBody();
} catch (\Exception $e) {
$fallbackContent = false;
}
// cleanup
@unlink($testFile);
/*
* If the content is not equal to test content our .htaccess
* is working as required
*/
return $content !== $testContent && $fallbackContent !== $testContent;
}
/**
* Check if current locale is non-UTF8
*
* @return bool
*/
private static function isNonUTF8Locale() {
if (function_exists('escapeshellcmd')) {
return escapeshellcmd('§') === '';
} elseif (function_exists('escapeshellarg')) {
return escapeshellarg('§') === '\'\'';
} else {
return preg_match('/utf-?8/i', setlocale(LC_CTYPE, 0)) === 0;
}
}
/**
* Check if the setlocale 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 (self::isNonUTF8Locale()) {
// Borrowed from \Patchwork\Utf8\Bootup::initLocale
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');
// Check again
if (self::isNonUTF8Locale()) {
return false;
}
}
return true;
}
/**
* 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 Mac OS X
*
* @return bool true if running on Mac OS X, false otherwise
*/
public static function runningOnMac() {
return (strtoupper(substr(PHP_OS, 0, 6)) === 'DARWIN');
}
/**
* Handles the case that there may not be a theme, then check if a "default"
* theme exists and take that one
*
* @return string the theme
*/
public static function getTheme() {
$theme = \OC::$server->getSystemConfig()->getValue("theme", '');
if ($theme === '') {
if (is_dir(OC::$SERVERROOT . '/themes/default')) {
$theme = 'default';
}
}
return $theme;
}
/**
* 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;
}
/**
* A human readable string is generated based on version and build number
*
* @return string
*/
public static function getHumanVersion() {
$version = OC_Util::getVersionString();
$build = OC_Util::getBuild();
if (!empty($build) and OC_Util::getChannel() === 'daily') {
$version .= ' Build:' . $build;
}
return $version;
}
/**
* Check whether the instance needs to perform an upgrade,
* either when the core version is higher or any app requires
* an upgrade.
*
* @param \OC\SystemConfig $config
* @return bool whether the core or any app needs an upgrade
* @throws \OCP\HintException When the upgrade from the given version is not allowed
*/
public static function needUpgrade(\OC\SystemConfig $config) {
if ($config->getValue('installed', false)) {
$installedVersion = $config->getValue('version', '0.0.0');
$currentVersion = implode('.', \OCP\Util::getVersion());
$versionDiff = version_compare($currentVersion, $installedVersion);
if ($versionDiff > 0) {
return true;
} elseif ($config->getValue('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 \OCP\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 \OCP\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;
}
}
}
Mini Shell