530 lines
16 KiB
PHP
530 lines
16 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Frank Karlitschek <frank@karlitschek.de>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author Individual IT Services <info@individual-it.net>
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* @author Jens-Christian Fischer <jens-christian.fischer@switch.ch>
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* @author Joas Schilling <coding@schilljs.com>
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* @author John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Pellaeon Lin <nfsmwlin@gmail.com>
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* @author Randolph Carter <RandolphCarter@fantasymail.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Victor Dubiniuk <dubiniuk@owncloud.com>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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/**
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* Public interface of ownCloud for apps to use.
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* Utility Class.
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*
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*/
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// use OCP namespace for all classes that are considered public.
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// This means that they should be used by apps instead of the internal ownCloud classes
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namespace OCP;
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/**
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* This class provides different helper functions to make the life of a developer easier
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* @since 4.0.0
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*/
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class Util {
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/**
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* @deprecated 14.0.0 use \OCP\ILogger::DEBUG
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*/
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const DEBUG=0;
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/**
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* @deprecated 14.0.0 use \OCP\ILogger::INFO
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*/
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const INFO=1;
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/**
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* @deprecated 14.0.0 use \OCP\ILogger::WARN
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*/
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const WARN=2;
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/**
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* @deprecated 14.0.0 use \OCP\ILogger::ERROR
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*/
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const ERROR=3;
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/**
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* @deprecated 14.0.0 use \OCP\ILogger::FATAL
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*/
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const FATAL=4;
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/** \OCP\Share\IManager */
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private static $shareManager;
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/**
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* get the current installed version of Nextcloud
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* @return array
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* @since 4.0.0
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*/
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public static function getVersion() {
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return \OC_Util::getVersion();
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}
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/**
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* @since 17.0.0
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*/
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public static function hasExtendedSupport(): bool {
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try {
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/** @var \OCP\Support\Subscription\IRegistry */
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$subscriptionRegistry = \OC::$server->query(\OCP\Support\Subscription\IRegistry::class);
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return $subscriptionRegistry->delegateHasExtendedSupport();
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} catch (AppFramework\QueryException $e) {}
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return \OC::$server->getConfig()->getSystemValueBool('extendedSupport', false);
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}
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/**
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* Set current update channel
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* @param string $channel
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* @since 8.1.0
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*/
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public static function setChannel($channel) {
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\OC::$server->getConfig()->setSystemValue('updater.release.channel', $channel);
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}
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/**
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* Get current update channel
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* @return string
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* @since 8.1.0
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*/
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public static function getChannel() {
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return \OC_Util::getChannel();
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}
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/**
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* write a message in the log
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* @param string $app
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* @param string $message
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* @param int $level
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* @since 4.0.0
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* @deprecated 13.0.0 use log of \OCP\ILogger
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*/
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public static function writeLog( $app, $message, $level ) {
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$context = ['app' => $app];
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\OC::$server->getLogger()->log($level, $message, $context);
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}
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/**
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* check if sharing is disabled for the current user
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*
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* @return boolean
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* @since 7.0.0
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* @deprecated 9.1.0 Use \OC::$server->getShareManager()->sharingDisabledForUser
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*/
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public static function isSharingDisabledForUser() {
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if (self::$shareManager === null) {
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self::$shareManager = \OC::$server->getShareManager();
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}
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$user = \OC::$server->getUserSession()->getUser();
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if ($user !== null) {
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$user = $user->getUID();
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}
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return self::$shareManager->sharingDisabledForUser($user);
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}
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/**
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* get l10n object
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* @param string $application
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* @param string|null $language
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* @return \OCP\IL10N
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* @since 6.0.0 - parameter $language was added in 8.0.0
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*/
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public static function getL10N($application, $language = null) {
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return \OC::$server->getL10N($application, $language);
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}
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/**
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* add a css file
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* @param string $application
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* @param string $file
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* @since 4.0.0
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*/
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public static function addStyle( $application, $file = null ) {
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\OC_Util::addStyle( $application, $file );
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}
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/**
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* add a javascript file
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* @param string $application
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* @param string $file
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* @since 4.0.0
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*/
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public static function addScript( $application, $file = null ) {
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\OC_Util::addScript( $application, $file );
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}
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/**
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* Add a translation JS file
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* @param string $application application id
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* @param string $languageCode language code, defaults to the current locale
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* @since 8.0.0
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*/
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public static function addTranslations($application, $languageCode = null) {
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\OC_Util::addTranslations($application, $languageCode);
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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 $text the text content for the element
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* @since 4.0.0
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*/
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public static function addHeader($tag, $attributes, $text=null) {
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\OC_Util::addHeader($tag, $attributes, $text);
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}
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/**
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* Creates an absolute url to the given app and file.
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* @param string $app app
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* @param string $file file
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* @param array $args array with param=>value, will be appended to the returned url
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* The value of $args will be urlencoded
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* @return string the url
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* @since 4.0.0 - parameter $args was added in 4.5.0
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*/
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public static function linkToAbsolute( $app, $file, $args = [] ) {
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$urlGenerator = \OC::$server->getURLGenerator();
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return $urlGenerator->getAbsoluteURL(
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$urlGenerator->linkTo($app, $file, $args)
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);
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}
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/**
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* Creates an absolute url for remote use.
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* @param string $service id
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* @return string the url
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* @since 4.0.0
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*/
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public static function linkToRemote( $service ) {
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$urlGenerator = \OC::$server->getURLGenerator();
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$remoteBase = $urlGenerator->linkTo('', 'remote.php') . '/' . $service;
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return $urlGenerator->getAbsoluteURL(
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$remoteBase . (($service[strlen($service) - 1] != '/') ? '/' : '')
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);
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}
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/**
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* Creates an absolute url for public use
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* @param string $service id
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* @return string the url
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* @since 4.5.0
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* @deprecated 15.0.0 - use OCP\IURLGenerator
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*/
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public static function linkToPublic($service) {
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$urlGenerator = \OC::$server->getURLGenerator();
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if ($service === 'files') {
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return $urlGenerator->getAbsoluteURL('/s');
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}
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return $urlGenerator->getAbsoluteURL($urlGenerator->linkTo('', 'public.php').'?service='.$service);
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}
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/**
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* Returns the server host name without an eventual port number
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* @return string the server hostname
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* @since 5.0.0
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*/
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public static function getServerHostName() {
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$host_name = \OC::$server->getRequest()->getServerHost();
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// strip away port number (if existing)
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$colon_pos = strpos($host_name, ':');
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if ($colon_pos != false) {
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$host_name = substr($host_name, 0, $colon_pos);
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}
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return $host_name;
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}
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/**
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* Returns the default email address
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* @param string $user_part the user part of the address
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* @return string the default email address
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*
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* Assembles a default email address (using the server hostname
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* and the given user part, and returns it
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* Example: when given lostpassword-noreply as $user_part param,
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* and is currently accessed via http(s)://example.com/,
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* it would return 'lostpassword-noreply@example.com'
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*
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* If the configuration value 'mail_from_address' is set in
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* config.php, this value will override the $user_part that
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* is passed to this function
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* @since 5.0.0
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*/
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public static function getDefaultEmailAddress($user_part) {
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$config = \OC::$server->getConfig();
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$user_part = $config->getSystemValue('mail_from_address', $user_part);
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$host_name = self::getServerHostName();
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$host_name = $config->getSystemValue('mail_domain', $host_name);
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$defaultEmailAddress = $user_part.'@'.$host_name;
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$mailer = \OC::$server->getMailer();
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if ($mailer->validateMailAddress($defaultEmailAddress)) {
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return $defaultEmailAddress;
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}
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// in case we cannot build a valid email address from the hostname let's fallback to 'localhost.localdomain'
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return $user_part.'@localhost.localdomain';
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}
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/**
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* Make a human file size (2048 to 2 kB)
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* @param int $bytes file size in bytes
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* @return string a human readable file size
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* @since 4.0.0
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*/
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public static function humanFileSize($bytes) {
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return \OC_Helper::humanFileSize($bytes);
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}
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/**
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* Make a computer file size (2 kB to 2048)
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* @param string $str file size in a fancy format
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* @return float a file size in bytes
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*
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* Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
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* @since 4.0.0
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*/
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public static function computerFileSize($str) {
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return \OC_Helper::computerFileSize($str);
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}
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/**
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* connects a function to a hook
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*
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* @param string $signalClass class name of emitter
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* @param string $signalName name of signal
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* @param string|object $slotClass class name of slot
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* @param string $slotName name of slot
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* @return bool
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*
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* This function makes it very easy to connect to use hooks.
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*
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* TODO: write example
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* @since 4.0.0
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*/
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static public function connectHook($signalClass, $signalName, $slotClass, $slotName) {
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return \OC_Hook::connect($signalClass, $signalName, $slotClass, $slotName);
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}
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/**
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* Emits a signal. To get data from the slot use references!
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* @param string $signalclass class name of emitter
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* @param string $signalname name of signal
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* @param array $params default: array() array with additional data
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* @return bool true if slots exists or false if not
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*
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* TODO: write example
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* @since 4.0.0
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*/
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static public function emitHook($signalclass, $signalname, $params = []) {
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return \OC_Hook::emit($signalclass, $signalname, $params);
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}
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/**
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* Cached encrypted CSRF token. Some static unit-tests of ownCloud compare
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* multiple OC_Template elements which invoke `callRegister`. If the value
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* would not be cached these unit-tests would fail.
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* @var string
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*/
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private static $token = '';
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/**
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* Register an get/post call. This is important to prevent CSRF attacks
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* @since 4.5.0
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*/
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public static function callRegister() {
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if(self::$token === '') {
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self::$token = \OC::$server->getCsrfTokenManager()->getToken()->getEncryptedValue();
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}
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return self::$token;
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}
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/**
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* Used to sanitize HTML
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*
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* This function is used to sanitize HTML and should be applied on any
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* string or array of strings before displaying it on a web page.
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*
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* @param string|array $value
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* @return string|array an array of sanitized strings or a single sanitized string, depends on the input parameter.
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* @since 4.5.0
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*/
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public static function sanitizeHTML($value) {
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return \OC_Util::sanitizeHTML($value);
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}
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/**
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* Public function to encode url parameters
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*
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* This function is used to encode path to file before output.
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* Encoding is done according to RFC 3986 with one exception:
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* Character '/' is preserved as is.
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*
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* @param string $component part of URI to encode
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* @return string
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* @since 6.0.0
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*/
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public static function encodePath($component) {
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return \OC_Util::encodePath($component);
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}
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/**
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* Returns an array with all keys from input lowercased or uppercased. Numbered indices are left as is.
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*
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* @param array $input The array to work on
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* @param int $case Either MB_CASE_UPPER or MB_CASE_LOWER (default)
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* @param string $encoding The encoding parameter is the character encoding. Defaults to UTF-8
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* @return array
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* @since 4.5.0
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*/
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public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8') {
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return \OC_Helper::mb_array_change_key_case($input, $case, $encoding);
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}
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/**
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* performs a search in a nested array
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*
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* @param array $haystack the array to be searched
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* @param string $needle the search string
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* @param mixed $index optional, only search this key name
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* @return mixed the key of the matching field, otherwise false
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* @since 4.5.0
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* @deprecated 15.0.0
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*/
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public static function recursiveArraySearch($haystack, $needle, $index = null) {
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return \OC_Helper::recursiveArraySearch($haystack, $needle, $index);
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}
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/**
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* calculates the maximum upload size respecting system settings, free space and user quota
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*
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* @param string $dir the current folder where the user currently operates
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* @param int $free the number of bytes free on the storage holding $dir, if not set this will be received from the storage directly
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* @return int number of bytes representing
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* @since 5.0.0
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*/
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public static function maxUploadFilesize($dir, $free = null) {
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return \OC_Helper::maxUploadFilesize($dir, $free);
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}
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/**
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* Calculate free space left within user quota
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* @param string $dir the current folder where the user currently operates
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* @return int number of bytes representing
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* @since 7.0.0
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*/
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public static function freeSpace($dir) {
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return \OC_Helper::freeSpace($dir);
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}
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/**
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* Calculate PHP upload limit
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*
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* @return int number of bytes representing
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* @since 7.0.0
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*/
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public static function uploadLimit() {
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return \OC_Helper::uploadLimit();
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}
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/**
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* Returns whether the given file name is valid
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* @param string $file file name to check
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* @return bool true if the file name is valid, false otherwise
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* @deprecated 8.1.0 use \OC\Files\View::verifyPath()
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* @since 7.0.0
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* @suppress PhanDeprecatedFunction
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*/
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public static function isValidFileName($file) {
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return \OC_Util::isValidFileName($file);
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}
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/**
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* Compare two strings to provide a natural sort
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* @param string $a first string to compare
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* @param string $b second string to compare
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* @return int -1 if $b comes before $a, 1 if $a comes before $b
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* or 0 if the strings are identical
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* @since 7.0.0
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*/
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public static function naturalSortCompare($a, $b) {
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return \OC\NaturalSort::getInstance()->compare($a, $b);
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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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* @return boolean
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* @since 7.0.0
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*/
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public static function isPublicLinkPasswordRequired() {
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return \OC_Util::isPublicLinkPasswordRequired();
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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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* @return boolean
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* @since 8.0.0
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*/
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public static function isDefaultExpireDateEnforced() {
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return \OC_Util::isDefaultExpireDateEnforced();
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}
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protected static $needUpgradeCache = null;
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/**
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* Checks whether the current version needs upgrade.
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*
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* @return bool true if upgrade is needed, false otherwise
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* @since 7.0.0
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*/
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public static function needUpgrade() {
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if (!isset(self::$needUpgradeCache)) {
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self::$needUpgradeCache=\OC_Util::needUpgrade(\OC::$server->getSystemConfig());
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}
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return self::$needUpgradeCache;
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}
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/**
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* is this Internet explorer ?
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*
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* @return boolean
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* @since 14.0.0
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*/
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public static function isIe() {
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return \OC_Util::isIe();
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}
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}
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