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417 lines
12 KiB
417 lines
12 KiB
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Aldo "xoen" Giambelluca <xoen@xoen.org>
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* @author Andreas Fischer <bantu@owncloud.com>
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bartek Przybylski <bart.p.pl@gmail.com>
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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 Georg Ehrke <oc.list@georgehrke.com>
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* @author Jakob Sack <mail@jakobsack.de>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Morris Jobke <hey@morrisjobke.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 shkdee <louis.traynard@m4x.org>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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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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use OCP\ILogger;
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/**
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* This class provides wrapper methods for user management. Multiple backends are
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* supported. User management operations are delegated to the configured backend for
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* execution.
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*
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* Note that &run is deprecated and won't work anymore.
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*
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* Hooks provided:
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* pre_createUser(&run, uid, password)
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* post_createUser(uid, password)
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* pre_deleteUser(&run, uid)
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* post_deleteUser(uid)
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* pre_setPassword(&run, uid, password, recoveryPassword)
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* post_setPassword(uid, password, recoveryPassword)
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* pre_login(&run, uid, password)
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* post_login(uid)
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* logout()
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*/
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class OC_User {
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private static $_usedBackends = [];
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private static $_setupedBackends = [];
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// bool, stores if a user want to access a resource anonymously, e.g if they open a public link
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private static $incognitoMode = false;
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/**
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* Adds the backend to the list of used backends
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*
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* @param string|\OCP\UserInterface $backend default: database The backend to use for user management
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* @return bool
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*
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* Set the User Authentication Module
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* @suppress PhanDeprecatedFunction
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*/
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public static function useBackend($backend = 'database') {
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if ($backend instanceof \OCP\UserInterface) {
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self::$_usedBackends[get_class($backend)] = $backend;
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\OC::$server->getUserManager()->registerBackend($backend);
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} else {
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// You'll never know what happens
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if (null === $backend or !is_string($backend)) {
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$backend = 'database';
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}
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// Load backend
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switch ($backend) {
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case 'database':
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case 'mysql':
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case 'sqlite':
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\OCP\Util::writeLog('core', 'Adding user backend ' . $backend . '.', ILogger::DEBUG);
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self::$_usedBackends[$backend] = new \OC\User\Database();
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\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
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break;
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case 'dummy':
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self::$_usedBackends[$backend] = new \Test\Util\User\Dummy();
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\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
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break;
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default:
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\OCP\Util::writeLog('core', 'Adding default user backend ' . $backend . '.', ILogger::DEBUG);
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$className = 'OC_USER_' . strtoupper($backend);
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self::$_usedBackends[$backend] = new $className();
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\OC::$server->getUserManager()->registerBackend(self::$_usedBackends[$backend]);
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break;
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}
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}
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return true;
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}
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/**
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* remove all used backends
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*/
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public static function clearBackends() {
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self::$_usedBackends = [];
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\OC::$server->getUserManager()->clearBackends();
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}
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/**
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* setup the configured backends in config.php
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* @suppress PhanDeprecatedFunction
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*/
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public static function setupBackends() {
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OC_App::loadApps(['prelogin']);
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$backends = \OC::$server->getSystemConfig()->getValue('user_backends', []);
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if (isset($backends['default']) && !$backends['default']) {
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// clear default backends
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self::clearBackends();
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}
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foreach ($backends as $i => $config) {
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if (!is_array($config)) {
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continue;
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}
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$class = $config['class'];
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$arguments = $config['arguments'];
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if (class_exists($class)) {
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if (array_search($i, self::$_setupedBackends) === false) {
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// make a reflection object
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$reflectionObj = new ReflectionClass($class);
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// use Reflection to create a new instance, using the $args
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$backend = $reflectionObj->newInstanceArgs($arguments);
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self::useBackend($backend);
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self::$_setupedBackends[] = $i;
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} else {
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\OCP\Util::writeLog('core', 'User backend ' . $class . ' already initialized.', ILogger::DEBUG);
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}
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} else {
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\OCP\Util::writeLog('core', 'User backend ' . $class . ' not found.', ILogger::ERROR);
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}
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}
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}
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/**
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* Try to login a user, assuming authentication
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* has already happened (e.g. via Single Sign On).
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*
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* Log in a user and regenerate a new session.
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*
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* @param \OCP\Authentication\IApacheBackend $backend
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* @return bool
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*/
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public static function loginWithApache(\OCP\Authentication\IApacheBackend $backend) {
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$uid = $backend->getCurrentUserId();
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$run = true;
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OC_Hook::emit("OC_User", "pre_login", ["run" => &$run, "uid" => $uid, 'backend' => $backend]);
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if ($uid) {
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if (self::getUser() !== $uid) {
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self::setUserId($uid);
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$userSession = \OC::$server->getUserSession();
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$userSession->setLoginName($uid);
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$request = OC::$server->getRequest();
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$userSession->createSessionToken($request, $uid, $uid);
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// setup the filesystem
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OC_Util::setupFS($uid);
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// first call the post_login hooks, the login-process needs to be
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// completed before we can safely create the users folder.
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// For example encryption needs to initialize the users keys first
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// before we can create the user folder with the skeleton files
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OC_Hook::emit(
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'OC_User',
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'post_login',
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[
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'uid' => $uid,
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'password' => '',
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'isTokenLogin' => false,
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]
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);
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//trigger creation of user home and /files folder
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\OC::$server->getUserFolder($uid);
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}
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return true;
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}
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return false;
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}
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/**
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* Verify with Apache whether user is authenticated.
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*
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* @return boolean|null
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* true: authenticated
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* false: not authenticated
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* null: not handled / no backend available
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*/
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public static function handleApacheAuth() {
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$backend = self::findFirstActiveUsedBackend();
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if ($backend) {
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OC_App::loadApps();
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//setup extra user backends
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self::setupBackends();
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\OC::$server->getUserSession()->unsetMagicInCookie();
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return self::loginWithApache($backend);
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}
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return null;
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}
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/**
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* Sets user id for session and triggers emit
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*
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* @param string $uid
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*/
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public static function setUserId($uid) {
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$userSession = \OC::$server->getUserSession();
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$userManager = \OC::$server->getUserManager();
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if ($user = $userManager->get($uid)) {
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$userSession->setUser($user);
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} else {
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\OC::$server->getSession()->set('user_id', $uid);
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}
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}
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/**
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* Check if the user is logged in, considers also the HTTP basic credentials
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*
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* @deprecated use \OC::$server->getUserSession()->isLoggedIn()
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* @return bool
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*/
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public static function isLoggedIn() {
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return \OC::$server->getUserSession()->isLoggedIn();
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}
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/**
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* set incognito mode, e.g. if a user wants to open a public link
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*
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* @param bool $status
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*/
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public static function setIncognitoMode($status) {
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self::$incognitoMode = $status;
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}
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/**
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* get incognito mode status
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*
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* @return bool
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*/
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public static function isIncognitoMode() {
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return self::$incognitoMode;
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}
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/**
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* Returns the current logout URL valid for the currently logged-in user
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*
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* @param \OCP\IURLGenerator $urlGenerator
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* @return string
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*/
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public static function getLogoutUrl(\OCP\IURLGenerator $urlGenerator) {
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$backend = self::findFirstActiveUsedBackend();
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if ($backend) {
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return $backend->getLogoutUrl();
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}
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$user = \OC::$server->getUserSession()->getUser();
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if ($user instanceof \OCP\IUser) {
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$backend = $user->getBackend();
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if ($backend instanceof \OCP\User\Backend\ICustomLogout) {
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return $backend->getLogoutUrl();
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}
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}
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$logoutUrl = $urlGenerator->linkToRoute('core.login.logout');
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$logoutUrl .= '?requesttoken=' . urlencode(\OCP\Util::callRegister());
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return $logoutUrl;
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}
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/**
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* Check if the user is an admin user
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*
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* @param string $uid uid of the admin
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* @return bool
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*/
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public static function isAdminUser($uid) {
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$group = \OC::$server->getGroupManager()->get('admin');
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$user = \OC::$server->getUserManager()->get($uid);
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if ($group && $user && $group->inGroup($user) && self::$incognitoMode === false) {
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return true;
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}
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return false;
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}
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/**
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* get the user id of the user currently logged in.
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*
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* @return string|bool uid or false
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*/
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public static function getUser() {
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$uid = \OC::$server->getSession() ? \OC::$server->getSession()->get('user_id') : null;
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if (!is_null($uid) && self::$incognitoMode === false) {
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return $uid;
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} else {
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return false;
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}
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}
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/**
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* get the display name of the user currently logged in.
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*
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* @param string $uid
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* @return string|bool uid or false
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* @deprecated 8.1.0 fetch \OCP\IUser (has getDisplayName()) by using method
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* get() of \OCP\IUserManager - \OC::$server->getUserManager()
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*/
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public static function getDisplayName($uid = null) {
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if ($uid) {
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$user = \OC::$server->getUserManager()->get($uid);
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if ($user) {
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return $user->getDisplayName();
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} else {
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return $uid;
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}
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} else {
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$user = \OC::$server->getUserSession()->getUser();
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if ($user) {
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return $user->getDisplayName();
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} else {
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return false;
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}
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}
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}
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/**
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* Set password
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*
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* @param string $uid The username
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* @param string $password The new password
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* @param string $recoveryPassword for the encryption app to reset encryption keys
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* @return bool
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*
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* Change the password of a user
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*/
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public static function setPassword($uid, $password, $recoveryPassword = null) {
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$user = \OC::$server->getUserManager()->get($uid);
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if ($user) {
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return $user->setPassword($password, $recoveryPassword);
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} else {
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return false;
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}
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}
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/**
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* @param string $uid The username
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* @return string
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*
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* returns the path to the users home directory
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* @deprecated Use \OC::$server->getUserManager->getHome()
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*/
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public static function getHome($uid) {
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$user = \OC::$server->getUserManager()->get($uid);
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if ($user) {
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return $user->getHome();
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} else {
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return \OC::$server->getSystemConfig()->getValue('datadirectory', OC::$SERVERROOT . '/data') . '/' . $uid;
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}
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}
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/**
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* Get a list of all users display name
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*
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* @param string $search
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* @param int $limit
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* @param int $offset
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* @return array associative array with all display names (value) and corresponding uids (key)
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*
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* Get a list of all display names and user ids.
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* @deprecated Use \OC::$server->getUserManager->searchDisplayName($search, $limit, $offset) instead.
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*/
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public static function getDisplayNames($search = '', $limit = null, $offset = null) {
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$displayNames = [];
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$users = \OC::$server->getUserManager()->searchDisplayName($search, $limit, $offset);
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foreach ($users as $user) {
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$displayNames[$user->getUID()] = $user->getDisplayName();
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}
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return $displayNames;
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}
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/**
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* Returns the first active backend from self::$_usedBackends.
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*
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* @return OCP\Authentication\IApacheBackend|null if no backend active, otherwise OCP\Authentication\IApacheBackend
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*/
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private static function findFirstActiveUsedBackend() {
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foreach (self::$_usedBackends as $backend) {
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if ($backend instanceof OCP\Authentication\IApacheBackend) {
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if ($backend->isSessionActive()) {
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return $backend;
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}
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}
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}
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return null;
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}
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}
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