30a5758a95
HHVM seems to have problems with this at the moment (even setting those values in the php.ini of HHVM doesn't have helped much) and thus the unit test execution failed. So it's better if we disable this check for now for HHVM.
1409 lines
41 KiB
PHP
1409 lines
41 KiB
PHP
<?php
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/**
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* Class for utility functions
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*
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*/
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class OC_Util {
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public static $scripts = array();
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public static $styles = array();
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public static $headers = array();
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private static $rootMounted = false;
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private static $fsSetup = false;
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private static function initLocalStorageRootFS() {
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// mount local file backend as root
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$configDataDirectory = OC_Config::getValue("datadirectory", OC::$SERVERROOT . "/data");
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//first set up the local "root" storage
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\OC\Files\Filesystem::initMounts();
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if (!self::$rootMounted) {
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\OC\Files\Filesystem::mount('\OC\Files\Storage\Local', array('datadir' => $configDataDirectory), '/');
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self::$rootMounted = true;
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}
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}
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/**
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* mounting an object storage as the root fs will in essence remove the
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* necessity of a data folder being present.
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* TODO make home storage aware of this and use the object storage instead of local disk access
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*
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* @param array $config containing 'class' and optional 'arguments'
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*/
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private static function initObjectStoreRootFS($config) {
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// check misconfiguration
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if (empty($config['class'])) {
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\OCP\Util::writeLog('files', 'No class given for objectstore', \OCP\Util::ERROR);
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}
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if (!isset($config['arguments'])) {
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$config['arguments'] = array();
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}
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// instantiate object store implementation
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$config['arguments']['objectstore'] = new $config['class']($config['arguments']);
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// mount with plain / root object store implementation
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$config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
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// mount object storage as root
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\OC\Files\Filesystem::initMounts();
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if (!self::$rootMounted) {
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\OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
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self::$rootMounted = true;
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}
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}
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/**
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* Can be set up
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*
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* @param string $user
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* @return boolean
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* @description configure the initial filesystem based on the configuration
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*/
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public static function setupFS($user = '') {
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//setting up the filesystem twice can only lead to trouble
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if (self::$fsSetup) {
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return false;
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}
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\OC::$server->getEventLogger()->start('setup_fs', 'Setup filesystem');
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// If we are not forced to load a specific user we load the one that is logged in
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if ($user == "" && OC_User::isLoggedIn()) {
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$user = OC_User::getUser();
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}
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// load all filesystem apps before, so no setup-hook gets lost
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OC_App::loadApps(array('filesystem'));
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// the filesystem will finish when $user is not empty,
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// mark fs setup here to avoid doing the setup from loading
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// OC_Filesystem
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if ($user != '') {
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self::$fsSetup = true;
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}
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//check if we are using an object storage
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$objectStore = OC_Config::getValue('objectstore');
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if (isset($objectStore)) {
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self::initObjectStoreRootFS($objectStore);
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} else {
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self::initLocalStorageRootFS();
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}
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if ($user != '' && !OCP\User::userExists($user)) {
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\OC::$server->getEventLogger()->end('setup_fs');
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return false;
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}
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//if we aren't logged in, there is no use to set up the filesystem
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if ($user != "") {
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\OC\Files\Filesystem::addStorageWrapper('oc_quota', function ($mountPoint, $storage) {
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// set up quota for home storages, even for other users
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// which can happen when using sharing
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/**
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* @var \OC\Files\Storage\Storage $storage
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*/
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if ($storage->instanceOfStorage('\OC\Files\Storage\Home')
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|| $storage->instanceOfStorage('\OC\Files\ObjectStore\HomeObjectStoreStorage')
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) {
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if (is_object($storage->getUser())) {
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$user = $storage->getUser()->getUID();
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$quota = OC_Util::getUserQuota($user);
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if ($quota !== \OCP\Files\FileInfo::SPACE_UNLIMITED) {
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return new \OC\Files\Storage\Wrapper\Quota(array('storage' => $storage, 'quota' => $quota, 'root' => 'files'));
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}
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}
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}
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return $storage;
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});
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$userDir = '/' . $user . '/files';
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//jail the user into his "home" directory
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\OC\Files\Filesystem::init($user, $userDir);
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$fileOperationProxy = new OC_FileProxy_FileOperations();
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OC_FileProxy::register($fileOperationProxy);
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//trigger creation of user home and /files folder
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\OC::$server->getUserFolder($user);
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OC_Hook::emit('OC_Filesystem', 'setup', array('user' => $user, 'user_dir' => $userDir));
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}
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\OC::$server->getEventLogger()->end('setup_fs');
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return true;
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}
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/**
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* check if a password is required for each public link
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*
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* @return boolean
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*/
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public static function isPublicLinkPasswordRequired() {
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$appConfig = \OC::$server->getAppConfig();
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$enforcePassword = $appConfig->getValue('core', 'shareapi_enforce_links_password', 'no');
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return ($enforcePassword === 'yes') ? true : false;
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}
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/**
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* check if sharing is disabled for the current user
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*
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* @return boolean
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*/
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public static function isSharingDisabledForUser() {
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if (\OC_Appconfig::getValue('core', 'shareapi_exclude_groups', 'no') === 'yes') {
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$user = \OCP\User::getUser();
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$groupsList = \OC_Appconfig::getValue('core', 'shareapi_exclude_groups_list', '');
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$excludedGroups = explode(',', $groupsList);
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$usersGroups = \OC_Group::getUserGroups($user);
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if (!empty($usersGroups)) {
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$remainingGroups = array_diff($usersGroups, $excludedGroups);
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// if the user is only in groups which are disabled for sharing then
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// sharing is also disabled for the user
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if (empty($remainingGroups)) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* check if share API enforces a default expire date
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*
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* @return boolean
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*/
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public static function isDefaultExpireDateEnforced() {
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$isDefaultExpireDateEnabled = \OCP\Config::getAppValue('core', 'shareapi_default_expire_date', 'no');
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$enforceDefaultExpireDate = false;
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if ($isDefaultExpireDateEnabled === 'yes') {
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$value = \OCP\Config::getAppValue('core', 'shareapi_enforce_expire_date', 'no');
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$enforceDefaultExpireDate = ($value === 'yes') ? true : false;
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}
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return $enforceDefaultExpireDate;
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}
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/**
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* Get the quota of a user
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*
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* @param string $user
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* @return int Quota bytes
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*/
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public static function getUserQuota($user) {
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$config = \OC::$server->getConfig();
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$userQuota = $config->getUserValue($user, 'files', 'quota', 'default');
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if ($userQuota === 'default') {
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$userQuota = $config->getAppValue('files', 'default_quota', 'none');
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}
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if($userQuota === 'none') {
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return \OCP\Files\FileInfo::SPACE_UNLIMITED;
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}else{
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return OC_Helper::computerFileSize($userQuota);
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}
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}
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/**
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* copies the skeleton to the users /files
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*
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* @param \OC\User\User $user
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* @param \OCP\Files\Folder $userDirectory
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*/
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public static function copySkeleton(\OC\User\User $user, \OCP\Files\Folder $userDirectory) {
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$skeletonDirectory = \OCP\Config::getSystemValue('skeletondirectory', \OC::$SERVERROOT . '/core/skeleton');
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if (!empty($skeletonDirectory)) {
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\OCP\Util::writeLog(
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'files_skeleton',
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'copying skeleton for '.$user->getUID().' from '.$skeletonDirectory.' to '.$userDirectory->getFullPath('/'),
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\OCP\Util::DEBUG
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);
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self::copyr($skeletonDirectory, $userDirectory);
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// update the file cache
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$userDirectory->getStorage()->getScanner()->scan('', \OC\Files\Cache\Scanner::SCAN_RECURSIVE);
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}
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}
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/**
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* copies a directory recursively by using streams
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*
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* @param string $source
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* @param \OCP\Files\Folder $target
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* @return void
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*/
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public static function copyr($source, \OCP\Files\Folder $target) {
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$dir = opendir($source);
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while (false !== ($file = readdir($dir))) {
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if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
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if (is_dir($source . '/' . $file)) {
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$child = $target->newFolder($file);
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self::copyr($source . '/' . $file, $child);
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} else {
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$child = $target->newFile($file);
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stream_copy_to_stream(fopen($source . '/' . $file,'r'), $child->fopen('w'));
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}
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}
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}
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closedir($dir);
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}
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/**
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* @return void
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*/
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public static function tearDownFS() {
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\OC\Files\Filesystem::tearDown();
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self::$fsSetup = false;
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self::$rootMounted = false;
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}
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/**
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* get the current installed version of ownCloud
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*
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* @return array
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*/
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public static function getVersion() {
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OC_Util::loadVersion();
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return \OC::$server->getSession()->get('OC_Version');
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}
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/**
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* get the current installed version string of ownCloud
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*
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* @return string
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*/
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public static function getVersionString() {
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OC_Util::loadVersion();
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return \OC::$server->getSession()->get('OC_VersionString');
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}
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/**
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* @description get the current installed edition of ownCloud. There is the community
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* edition that just returns an empty string and the enterprise edition
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* that returns "Enterprise".
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* @return string
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*/
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public static function getEditionString() {
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if (OC_App::isEnabled('enterprise_key')) {
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return "Enterprise";
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} else {
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return "";
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}
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}
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/**
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* @description get the update channel of the current installed of ownCloud.
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* @return string
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*/
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public static function getChannel() {
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OC_Util::loadVersion();
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return \OC::$server->getSession()->get('OC_Channel');
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}
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/**
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* @description get the build number of the current installed of ownCloud.
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* @return string
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*/
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public static function getBuild() {
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OC_Util::loadVersion();
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return \OC::$server->getSession()->get('OC_Build');
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}
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/**
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* @description load the version.php into the session as cache
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*/
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private static function loadVersion() {
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$timestamp = filemtime(OC::$SERVERROOT . '/version.php');
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if (!\OC::$server->getSession()->exists('OC_Version') or OC::$server->getSession()->get('OC_Version_Timestamp') != $timestamp) {
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require 'version.php';
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$session = \OC::$server->getSession();
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/** @var $timestamp int */
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$session->set('OC_Version_Timestamp', $timestamp);
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/** @var $OC_Version string */
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$session->set('OC_Version', $OC_Version);
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/** @var $OC_VersionString string */
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$session->set('OC_VersionString', $OC_VersionString);
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/** @var $OC_Channel string */
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$session->set('OC_Channel', $OC_Channel);
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/** @var $OC_Build string */
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$session->set('OC_Build', $OC_Build);
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}
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}
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/**
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* generates a path for JS/CSS files. If no application is provided it will create the path for core.
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*
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* @param string $application application to get the files from
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* @param string $directory directory withing this application (css, js, vendor, etc)
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* @param string $file the file inside of the above folder
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* @return string the path
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*/
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private static function generatePath($application, $directory, $file) {
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if (is_null($file)) {
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$file = $application;
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$application = "";
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}
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if (!empty($application)) {
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return "$application/$directory/$file";
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} else {
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return "$directory/$file";
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}
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}
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/**
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* add a javascript file
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*
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* @param string $application application id
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* @param string|null $file filename
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* @return void
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*/
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public static function addScript($application, $file = null) {
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$path = OC_Util::generatePath($application, 'js', $file);
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if (!in_array($path, self::$scripts)) {
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// core js files need separate handling
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if ($application !== 'core' && $file !== null) {
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self::addTranslations($application);
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}
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self::$scripts[] = $path;
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}
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}
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/**
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* add a javascript file from the vendor sub folder
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*
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* @param string $application application id
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* @param string|null $file filename
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* @return void
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*/
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public static function addVendorScript($application, $file = null) {
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$path = OC_Util::generatePath($application, 'vendor', $file);
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if (!in_array($path, self::$scripts)) {
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self::$scripts[] = $path;
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}
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}
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/**
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* add a translation JS file
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*
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* @param string $application application id
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* @param string $languageCode language code, defaults to the current language
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*/
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public static function addTranslations($application, $languageCode = null) {
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if (is_null($languageCode)) {
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$l = new \OC_L10N($application);
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$languageCode = $l->getLanguageCode($application);
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}
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if (!empty($application)) {
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$path = "$application/l10n/$languageCode";
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} else {
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$path = "l10n/$languageCode";
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}
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if (!in_array($path, self::$scripts)) {
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self::$scripts[] = $path;
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}
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}
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/**
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* add a css file
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*
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* @param string $application application id
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* @param string|null $file filename
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* @return void
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*/
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public static function addStyle($application, $file = null) {
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$path = OC_Util::generatePath($application, 'css', $file);
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if (!in_array($path, self::$styles)) {
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self::$styles[] = $path;
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}
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}
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/**
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* add a css file from the vendor sub folder
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*
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* @param string $application application id
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* @param string|null $file filename
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* @return void
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*/
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public static function addVendorStyle($application, $file = null) {
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$path = OC_Util::generatePath($application, 'vendor', $file);
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if (!in_array($path, self::$styles)) {
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self::$styles[] = $path;
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}
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}
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/**
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* Add a custom element to the header
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* If $text is null then the element will be written as empty element.
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* So use "" to get a closing tag.
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* @param string $tag tag name of the element
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* @param array $attributes array of attributes for the element
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* @param string $text the text content for the element
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*/
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public static function addHeader($tag, $attributes, $text=null) {
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self::$headers[] = array(
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'tag' => $tag,
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'attributes' => $attributes,
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'text' => $text
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);
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}
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/**
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* formats a timestamp in the "right" way
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*
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* @param int $timestamp
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* @param bool $dateOnly option to omit time from the result
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* @param DateTimeZone|string $timeZone where the given timestamp shall be converted to
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* @return string timestamp
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*
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* @deprecated Use \OC::$server->query('DateTimeFormatter') instead
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*/
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public static function formatDate($timestamp, $dateOnly = false, $timeZone = null) {
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if ($timeZone !== null && !$timeZone instanceof \DateTimeZone) {
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$timeZone = new \DateTimeZone($timeZone);
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}
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/** @var \OC\DateTimeFormatter $formatter */
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$formatter = \OC::$server->query('DateTimeFormatter');
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if ($dateOnly) {
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return $formatter->formatDate($timestamp, 'long', $timeZone);
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}
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return $formatter->formatDateTime($timestamp, 'long', 'long', $timeZone);
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}
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/**
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* check if the current server configuration is suitable for ownCloud
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*
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* @param \OCP\IConfig $config
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* @return array arrays with error messages and hints
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*/
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public static function checkServer(\OCP\IConfig $config) {
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$l = \OC::$server->getL10N('lib');
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$errors = array();
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$CONFIG_DATADIRECTORY = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data');
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if (!self::needUpgrade($config) && $config->getSystemValue('installed', false)) {
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// this check needs to be done every time
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$errors = self::checkDataDirectoryValidity($CONFIG_DATADIRECTORY);
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}
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// Assume that if checkServer() succeeded before in this session, then all is fine.
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if (\OC::$server->getSession()->exists('checkServer_succeeded') && \OC::$server->getSession()->get('checkServer_succeeded')) {
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return $errors;
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}
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$webServerRestart = false;
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$setup = new OC_Setup($config);
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$availableDatabases = $setup->getSupportedDatabases();
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if (empty($availableDatabases)) {
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$errors[] = array(
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'error' => $l->t('No database drivers (sqlite, mysql, or postgresql) installed.'),
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'hint' => '' //TODO: sane hint
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);
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$webServerRestart = true;
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}
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//common hint for all file permissions error messages
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$permissionsHint = $l->t('Permissions can usually be fixed by '
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. '%sgiving the webserver write access to the root directory%s.',
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array('<a href="' . \OC_Helper::linkToDocs('admin-dir_permissions') . '" target="_blank">', '</a>'));
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// Check if config folder is writable.
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if (!is_writable(OC::$configDir) or !is_readable(OC::$configDir)) {
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$errors[] = array(
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'error' => $l->t('Cannot write into "config" directory'),
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'hint' => $l->t('This can usually be fixed by '
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. '%sgiving the webserver write access to the config directory%s.',
|
|
array('<a href="' . \OC_Helper::linkToDocs('admin-dir_permissions') . '" target="_blank">', '</a>'))
|
|
);
|
|
}
|
|
|
|
// Check if there is a writable install folder.
|
|
if ($config->getSystemValue('appstoreenabled', true)) {
|
|
if (OC_App::getInstallPath() === null
|
|
|| !is_writable(OC_App::getInstallPath())
|
|
|| !is_readable(OC_App::getInstallPath())
|
|
) {
|
|
$errors[] = array(
|
|
'error' => $l->t('Cannot write into "apps" directory'),
|
|
'hint' => $l->t('This can usually be fixed by '
|
|
. '%sgiving the webserver write access to the apps directory%s'
|
|
. ' or disabling the appstore in the config file.',
|
|
array('<a href="' . \OC_Helper::linkToDocs('admin-dir_permissions') . '" target="_blank">', '</a>'))
|
|
);
|
|
}
|
|
}
|
|
// Create root dir.
|
|
if ($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[] = array(
|
|
'error' => $l->t('Cannot create "data" directory (%s)', array($CONFIG_DATADIRECTORY)),
|
|
'hint' => $l->t('This can usually be fixed by '
|
|
. '<a href="%s" target="_blank">giving the webserver write access to the root directory</a>.',
|
|
array(OC_Helper::linkToDocs('admin-dir_permissions')))
|
|
);
|
|
}
|
|
} else if (!is_writable($CONFIG_DATADIRECTORY) or !is_readable($CONFIG_DATADIRECTORY)) {
|
|
$errors[] = array(
|
|
'error' => 'Data directory (' . $CONFIG_DATADIRECTORY . ') not writable by ownCloud',
|
|
'hint' => $permissionsHint
|
|
);
|
|
} else {
|
|
$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
|
|
}
|
|
}
|
|
|
|
if (!OC_Util::isSetLocaleWorking()) {
|
|
$errors[] = array(
|
|
'error' => $l->t('Setting locale to %s failed',
|
|
array('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
|
|
// If the dependency is not found the missing module name is shown to the EndUser
|
|
$dependencies = array(
|
|
'classes' => array(
|
|
'ZipArchive' => 'zip',
|
|
'DOMDocument' => 'dom',
|
|
'XMLWriter' => 'XMLWriter'
|
|
),
|
|
'functions' => array(
|
|
'xml_parser_create' => 'libxml',
|
|
'mb_detect_encoding' => 'mb multibyte',
|
|
'ctype_digit' => 'ctype',
|
|
'json_encode' => 'JSON',
|
|
'gd_info' => 'GD',
|
|
'gzencode' => 'zlib',
|
|
'iconv' => 'iconv',
|
|
'simplexml_load_string' => 'SimpleXML',
|
|
'hash' => 'HASH Message Digest Framework'
|
|
),
|
|
'defined' => array(
|
|
'PDO::ATTR_DRIVER_NAME' => 'PDO'
|
|
)
|
|
);
|
|
$missingDependencies = array();
|
|
$moduleHint = $l->t('Please ask your server administrator to install the module.');
|
|
|
|
foreach ($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[] = $module;
|
|
}
|
|
}
|
|
|
|
foreach($missingDependencies as $missingDependency) {
|
|
$errors[] = array(
|
|
'error' => $l->t('PHP module %s not installed.', array($missingDependency)),
|
|
'hint' => $moduleHint
|
|
);
|
|
$webServerRestart = true;
|
|
}
|
|
|
|
if (version_compare(phpversion(), '5.4.0', '<')) {
|
|
$errors[] = array(
|
|
'error' => $l->t('PHP %s or higher is required.', '5.4.0'),
|
|
'hint' => $l->t('Please ask your server administrator to update PHP to the latest version.'
|
|
. ' Your PHP version is no longer supported by ownCloud and the PHP community.')
|
|
);
|
|
$webServerRestart = true;
|
|
}
|
|
|
|
/**
|
|
* PHP 5.6 ships with a PHP setting which throws notices by default for a
|
|
* lot of endpoints. Thus we need to ensure that the value is set to -1
|
|
*
|
|
* FIXME: Due to https://github.com/owncloud/core/pull/13593#issuecomment-71178078
|
|
* this check is disabled for HHVM at the moment. This should get re-evaluated
|
|
* at a later point.
|
|
*
|
|
* @link https://github.com/owncloud/core/issues/13592
|
|
*/
|
|
if(version_compare(phpversion(), '5.6.0', '>=') &&
|
|
!self::runningOnHhvm() &&
|
|
\OC::$server->getIniWrapper()->getNumeric('always_populate_raw_post_data') !== -1) {
|
|
$errors[] = array(
|
|
'error' => $l->t('PHP is configured to populate raw post data. Since PHP 5.6 this will lead to PHP throwing notices for perfectly valid code.'),
|
|
'hint' => $l->t('To fix this issue set <code>always_populate_raw_post_data</code> to <code>-1</code> in your php.ini')
|
|
);
|
|
}
|
|
|
|
if (!self::isAnnotationsWorking()) {
|
|
$errors[] = array(
|
|
'error' => $l->t('PHP is apparently setup to strip inline doc blocks. This will make several core apps inaccessible.'),
|
|
'hint' => $l->t('This is probably caused by a cache/accelerator such as Zend OPcache or eAccelerator.')
|
|
);
|
|
}
|
|
|
|
if ($webServerRestart) {
|
|
$errors[] = array(
|
|
'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 = array();
|
|
$dbType = \OC_Config::getValue('dbtype', 'sqlite');
|
|
if ($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[] = array(
|
|
'error' => $l->t('PostgreSQL >= 9 required'),
|
|
'hint' => $l->t('Please upgrade your database version')
|
|
);
|
|
}
|
|
}
|
|
} catch (\Doctrine\DBAL\DBALException $e) {
|
|
\OCP\Util::logException('core', $e);
|
|
$errors[] = array(
|
|
'error' => $l->t('Error occurred while checking PostgreSQL version'),
|
|
'hint' => $l->t('Please make sure you have PostgreSQL >= 9 or'
|
|
. ' check the logs for more information about the error')
|
|
);
|
|
}
|
|
}
|
|
return $errors;
|
|
}
|
|
|
|
|
|
/**
|
|
* check if there are still some encrypted files stored
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public static function encryptedFiles() {
|
|
//check if encryption was enabled in the past
|
|
$encryptedFiles = false;
|
|
if (OC_App::isEnabled('files_encryption') === false) {
|
|
$view = new OC\Files\View('/' . OCP\User::getUser());
|
|
$keysPath = '/files_encryption/keys';
|
|
if ($view->is_dir($keysPath)) {
|
|
$dircontent = $view->getDirectoryContent($keysPath);
|
|
if (!empty($dircontent)) {
|
|
$encryptedFiles = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $encryptedFiles;
|
|
}
|
|
|
|
/**
|
|
* check if a backup from the encryption keys exists
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public static function backupKeysExists() {
|
|
//check if encryption was enabled in the past
|
|
$backupExists = false;
|
|
if (OC_App::isEnabled('files_encryption') === false) {
|
|
$view = new OC\Files\View('/' . OCP\User::getUser());
|
|
$backupPath = '/files_encryption/backup.decryptAll';
|
|
if ($view->is_dir($backupPath)) {
|
|
$dircontent = $view->getDirectoryContent($backupPath);
|
|
if (!empty($dircontent)) {
|
|
$backupExists = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $backupExists;
|
|
}
|
|
|
|
/**
|
|
* 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 = array();
|
|
if (self::runningOnWindows()) {
|
|
//TODO: permissions checks for windows hosts
|
|
} else {
|
|
$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[] = array(
|
|
'error' => $l->t('Data directory (%s) is readable by other users', array($dataDirectory)),
|
|
'hint' => $permissionsModHint
|
|
);
|
|
}
|
|
}
|
|
}
|
|
return $errors;
|
|
}
|
|
|
|
/**
|
|
* Check that the data directory exists and is valid by
|
|
* checking the existence of the ".ocdata" file.
|
|
*
|
|
* @param string $dataDirectory data directory path
|
|
* @return bool true if the data directory is valid, false otherwise
|
|
*/
|
|
public static function checkDataDirectoryValidity($dataDirectory) {
|
|
$l = \OC::$server->getL10N('lib');
|
|
$errors = array();
|
|
if (!file_exists($dataDirectory . '/.ocdata')) {
|
|
$errors[] = array(
|
|
'error' => $l->t('Data directory (%s) is invalid', array($dataDirectory)),
|
|
'hint' => $l->t('Please check that the data directory contains a file' .
|
|
' ".ocdata" in its root.')
|
|
);
|
|
}
|
|
return $errors;
|
|
}
|
|
|
|
/**
|
|
* @param array $errors
|
|
* @param string[] $messages
|
|
*/
|
|
public static function displayLoginPage($errors = array(), $messages = []) {
|
|
$parameters = array();
|
|
foreach ($errors as $value) {
|
|
$parameters[$value] = true;
|
|
}
|
|
$parameters['messages'] = $messages;
|
|
if (!empty($_REQUEST['user'])) {
|
|
$parameters["username"] = $_REQUEST['user'];
|
|
$parameters['user_autofocus'] = false;
|
|
} else {
|
|
$parameters["username"] = '';
|
|
$parameters['user_autofocus'] = true;
|
|
}
|
|
if (isset($_REQUEST['redirect_url'])) {
|
|
$redirectUrl = $_REQUEST['redirect_url'];
|
|
$parameters['redirect_url'] = urlencode($redirectUrl);
|
|
}
|
|
|
|
$parameters['alt_login'] = OC_App::getAlternativeLogIns();
|
|
$parameters['rememberLoginAllowed'] = self::rememberLoginAllowed();
|
|
OC_Template::printGuestPage("", "login", $parameters);
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if the app is enabled, redirects to home if not
|
|
*
|
|
* @param string $app
|
|
* @return void
|
|
*/
|
|
public static function checkAppEnabled($app) {
|
|
if (!OC_App::isEnabled($app)) {
|
|
header('Location: ' . OC_Helper::linkToAbsolute('', 'index.php'));
|
|
exit();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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_User::isLoggedIn()) {
|
|
header('Location: ' . OC_Helper::linkToAbsolute('', 'index.php',
|
|
array('redirect_url' => OC_Request::requestUri())
|
|
));
|
|
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: ' . OC_Helper::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();
|
|
if (!OC_SubAdmin::isSubAdmin(OC_User::getUser())) {
|
|
header('Location: ' . OC_Helper::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 {
|
|
$defaultPage = OC_Appconfig::getValue('core', 'defaultpage');
|
|
if ($defaultPage) {
|
|
$location = $urlGenerator->getAbsoluteURL($defaultPage);
|
|
} else {
|
|
$appId = 'files';
|
|
$defaultApps = explode(',', \OCP\Config::getSystemValue('defaultapp', 'files'));
|
|
// find the first app that is enabled for the current user
|
|
foreach ($defaultApps as $defaultApp) {
|
|
$defaultApp = OC_App::cleanAppId(strip_tags($defaultApp));
|
|
if (OC_App::isEnabled($defaultApp)) {
|
|
$appId = $defaultApp;
|
|
break;
|
|
}
|
|
}
|
|
$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() {
|
|
$id = OC_Config::getValue('instanceid', null);
|
|
if (is_null($id)) {
|
|
// We need to guarantee at least one letter in instanceid so it can be used as the session_name
|
|
$id = 'oc' . \OC::$server->getSecureRandom()->getLowStrengthGenerator()->generate(10, \OCP\Security\ISecureRandom::CHAR_LOWER.\OCP\Security\ISecureRandom::CHAR_DIGITS);
|
|
OC_Config::$object->setValue('instanceid', $id);
|
|
}
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* Register an get/post call. Important to prevent CSRF attacks.
|
|
*
|
|
* @return string Generated token.
|
|
* @description
|
|
* Creates a 'request token' (random) and stores it inside the session.
|
|
* Ever subsequent (ajax) request must use such a valid token to succeed,
|
|
* otherwise the request will be denied as a protection against CSRF.
|
|
* @see OC_Util::isCallRegistered()
|
|
*/
|
|
public static function callRegister() {
|
|
// Check if a token exists
|
|
if (!\OC::$server->getSession()->exists('requesttoken')) {
|
|
// No valid token found, generate a new one.
|
|
$requestToken = \OC::$server->getSecureRandom()->getMediumStrengthGenerator()->generate(30);
|
|
\OC::$server->getSession()->set('requesttoken', $requestToken);
|
|
} else {
|
|
// Valid token already exists, send it
|
|
$requestToken = \OC::$server->getSession()->get('requesttoken');
|
|
}
|
|
return ($requestToken);
|
|
}
|
|
|
|
/**
|
|
* Check an ajax get/post call if the request token is valid.
|
|
*
|
|
* @return boolean False if request token is not set or is invalid.
|
|
* @see OC_Util::callRegister()
|
|
*/
|
|
public static function isCallRegistered() {
|
|
return \OC::$server->getRequest()->passesCSRFCheck();
|
|
}
|
|
|
|
/**
|
|
* Check an ajax get/post call if the request token is valid. Exit if not.
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function callCheck() {
|
|
if (!OC_Util::isCallRegistered()) {
|
|
exit();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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($value)) {
|
|
array_walk_recursive($value, 'OC_Util::sanitizeHTML');
|
|
} 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 $encoded;
|
|
}
|
|
|
|
/**
|
|
* Check if the .htaccess file is working
|
|
*
|
|
* @throws OC\HintException If the testfile can't get written.
|
|
* @return bool
|
|
* @description Check if the .htaccess file is working by creating a test
|
|
* file in the data directory and trying to access via http
|
|
*/
|
|
public static function isHtaccessWorking() {
|
|
if (\OC::$CLI || !OC::$server->getConfig()->getSystemValue('check_for_working_htaccess', true)) {
|
|
return true;
|
|
}
|
|
|
|
// php dev server does not support htaccess
|
|
if (php_sapi_name() === 'cli-server') {
|
|
return false;
|
|
}
|
|
|
|
// testdata
|
|
$fileName = '/htaccesstest.txt';
|
|
$testContent = 'testcontent';
|
|
|
|
// creating a test file
|
|
$testFile = OC::$server->getConfig()->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);
|
|
|
|
// accessing the file via http
|
|
$url = OC_Helper::makeURLAbsolute(OC::$WEBROOT . '/data' . $fileName);
|
|
$content = self::getUrlContent($url);
|
|
|
|
// cleanup
|
|
@unlink($testFile);
|
|
|
|
/*
|
|
* If the content is not equal to test content our .htaccess
|
|
* is working as required
|
|
*/
|
|
return $content !== $testContent;
|
|
}
|
|
|
|
/**
|
|
* 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() {
|
|
// setlocale test is pointless on Windows
|
|
if (OC_Util::runningOnWindows()) {
|
|
return true;
|
|
}
|
|
|
|
\Patchwork\Utf8\Bootup::initLocale();
|
|
if ('' === basename('§')) {
|
|
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');
|
|
}
|
|
|
|
/**
|
|
* Check if the ownCloud server can connect to the internet
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function isInternetConnectionWorking() {
|
|
// in case there is no internet connection on purpose return false
|
|
if (self::isInternetConnectionEnabled() === false) {
|
|
return false;
|
|
}
|
|
|
|
// in case the connection is via proxy return true to avoid connecting to owncloud.org
|
|
if (OC_Config::getValue('proxy', '') != '') {
|
|
return true;
|
|
}
|
|
|
|
// try to connect to owncloud.org to see if http connections to the internet are possible.
|
|
$connected = @fsockopen("www.owncloud.org", 80);
|
|
if ($connected) {
|
|
fclose($connected);
|
|
return true;
|
|
} else {
|
|
// second try in case one server is down
|
|
$connected = @fsockopen("apps.owncloud.com", 80);
|
|
if ($connected) {
|
|
fclose($connected);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if the connection to the internet is disabled on purpose
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function isInternetConnectionEnabled() {
|
|
return \OC_Config::getValue("has_internet_connection", true);
|
|
}
|
|
|
|
/**
|
|
* clear all levels of output buffering
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function obEnd() {
|
|
while (ob_get_level()) {
|
|
ob_end_clean();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Generates a cryptographic secure pseudo-random string
|
|
*
|
|
* @param int $length of the random string
|
|
* @return string
|
|
* @deprecated Use \OC::$server->getSecureRandom()->getMediumStrengthGenerator()->generate($length); instead
|
|
*/
|
|
public static function generateRandomBytes($length = 30) {
|
|
return \OC::$server->getSecureRandom()->getMediumStrengthGenerator()->generate($length, \OCP\Security\ISecureRandom::CHAR_LOWER.\OCP\Security\ISecureRandom::CHAR_DIGITS);
|
|
}
|
|
|
|
/**
|
|
* Checks if a secure random number generator is available
|
|
*
|
|
* @return true
|
|
* @deprecated Function will be removed in the future and does only return true.
|
|
*/
|
|
public static function secureRNGAvailable() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get URL content
|
|
* @param string $url Url to get content
|
|
* @deprecated Use \OC::$server->getHTTPHelper()->getUrlContent($url);
|
|
* @throws Exception If the URL does not start with http:// or https://
|
|
* @return string of the response or false on error
|
|
* This function get the content of a page via curl, if curl is enabled.
|
|
* If not, file_get_contents is used.
|
|
*/
|
|
public static function getUrlContent($url) {
|
|
try {
|
|
return \OC::$server->getHTTPHelper()->getUrlContent($url);
|
|
} catch (\Exception $e) {
|
|
throw $e;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks whether the server is running on Windows
|
|
*
|
|
* @return bool true if running on Windows, false otherwise
|
|
*/
|
|
public static function runningOnWindows() {
|
|
return (substr(PHP_OS, 0, 3) === "WIN");
|
|
}
|
|
|
|
/**
|
|
* 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');
|
|
}
|
|
|
|
/**
|
|
* 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 string the theme
|
|
*/
|
|
public static function getTheme() {
|
|
$theme = OC_Config::getValue("theme", '');
|
|
|
|
if ($theme === '') {
|
|
if (is_dir(OC::$SERVERROOT . '/themes/default')) {
|
|
$theme = 'default';
|
|
}
|
|
}
|
|
|
|
return $theme;
|
|
}
|
|
|
|
/**
|
|
* 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();
|
|
}
|
|
// XCache
|
|
if (function_exists('xcache_clear_cache')) {
|
|
if (ini_get('xcache.admin.enable_auth')) {
|
|
OC_Log::write('core', 'XCache opcode cache will not be cleared because "xcache.admin.enable_auth" is enabled.', \OC_Log::WARN);
|
|
} else {
|
|
xcache_clear_cache(XC_TYPE_PHP, 0);
|
|
}
|
|
}
|
|
// 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);
|
|
}
|
|
|
|
/**
|
|
* 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 $file file name to check
|
|
* @return bool true if the file name is valid, false otherwise
|
|
*/
|
|
public static function isValidFileName($file) {
|
|
$trimmed = trim($file);
|
|
if ($trimmed === '') {
|
|
return false;
|
|
}
|
|
if ($trimmed === '.' || $trimmed === '..') {
|
|
return false;
|
|
}
|
|
foreach (str_split($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
|
|
*/
|
|
public static function needUpgrade(\OCP\IConfig $config) {
|
|
if ($config->getSystemValue('installed', false)) {
|
|
$installedVersion = $config->getSystemValue('version', '0.0.0');
|
|
$currentVersion = implode('.', OC_Util::getVersion());
|
|
if (version_compare($currentVersion, $installedVersion, '>')) {
|
|
return true;
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public static function isPhpCharSetUtf8() {
|
|
return ini_get('default_charset') === 'UTF-8';
|
|
}
|
|
|
|
}
|