472 lines
13 KiB
PHP
472 lines
13 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 Joas Schilling <coding@schilljs.com>
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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 Michael U <mdusher@users.noreply.github.com>
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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 Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Chan <plus.vincchan@gmail.com>
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* @author Volkan Gezer <volkangezer@gmail.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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namespace OC\User;
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use OC\Hooks\PublicEmitter;
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use OCP\IUser;
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use OCP\IUserBackend;
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use OCP\IUserManager;
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use OCP\IConfig;
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/**
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* Class Manager
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*
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* Hooks available in scope \OC\User:
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* - preSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
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* - postSetPassword(\OC\User\User $user, string $password, string $recoverPassword)
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* - preDelete(\OC\User\User $user)
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* - postDelete(\OC\User\User $user)
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* - preCreateUser(string $uid, string $password)
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* - postCreateUser(\OC\User\User $user, string $password)
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* - change(\OC\User\User $user)
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*
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* @package OC\User
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*/
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class Manager extends PublicEmitter implements IUserManager {
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/**
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* @var \OCP\UserInterface[] $backends
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*/
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private $backends = array();
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/**
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* @var \OC\User\User[] $cachedUsers
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*/
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private $cachedUsers = array();
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/**
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* @var \OCP\IConfig $config
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*/
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private $config;
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/**
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* @param \OCP\IConfig $config
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*/
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public function __construct(IConfig $config) {
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$this->config = $config;
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$cachedUsers = &$this->cachedUsers;
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$this->listen('\OC\User', 'postDelete', function ($user) use (&$cachedUsers) {
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/** @var \OC\User\User $user */
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unset($cachedUsers[$user->getUID()]);
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});
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}
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/**
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* Get the active backends
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* @return \OCP\UserInterface[]
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*/
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public function getBackends() {
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return $this->backends;
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}
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/**
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* register a user backend
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*
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* @param \OCP\UserInterface $backend
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*/
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public function registerBackend($backend) {
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$this->backends[] = $backend;
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}
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/**
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* remove a user backend
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*
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* @param \OCP\UserInterface $backend
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*/
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public function removeBackend($backend) {
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$this->cachedUsers = array();
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if (($i = array_search($backend, $this->backends)) !== false) {
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unset($this->backends[$i]);
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}
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}
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/**
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* remove all user backends
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*/
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public function clearBackends() {
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$this->cachedUsers = array();
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$this->backends = array();
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}
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/**
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* get a user by user id
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*
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* @param string $uid
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* @return \OC\User\User|null Either the user or null if the specified user does not exist
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*/
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public function get($uid) {
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if (isset($this->cachedUsers[$uid])) { //check the cache first to prevent having to loop over the backends
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return $this->cachedUsers[$uid];
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}
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foreach ($this->backends as $backend) {
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if ($backend->userExists($uid)) {
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return $this->getUserObject($uid, $backend);
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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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* get or construct the user object
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*
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* @param string $uid
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* @param \OCP\UserInterface $backend
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* @param bool $cacheUser If false the newly created user object will not be cached
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* @return \OC\User\User
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*/
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protected function getUserObject($uid, $backend, $cacheUser = true) {
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if (isset($this->cachedUsers[$uid])) {
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return $this->cachedUsers[$uid];
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}
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if (method_exists($backend, 'loginName2UserName')) {
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$loginName = $backend->loginName2UserName($uid);
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if ($loginName !== false) {
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$uid = $loginName;
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}
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if (isset($this->cachedUsers[$uid])) {
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return $this->cachedUsers[$uid];
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}
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}
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$user = new User($uid, $backend, $this, $this->config);
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if ($cacheUser) {
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$this->cachedUsers[$uid] = $user;
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}
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return $user;
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}
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/**
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* check if a user exists
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*
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* @param string $uid
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* @return bool
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*/
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public function userExists($uid) {
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$user = $this->get($uid);
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return ($user !== null);
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}
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/**
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* Check if the password is valid for the user
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*
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* @param string $loginName
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* @param string $password
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* @return mixed the User object on success, false otherwise
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*/
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public function checkPassword($loginName, $password) {
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$loginName = str_replace("\0", '', $loginName);
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$password = str_replace("\0", '', $password);
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(Backend::CHECK_PASSWORD)) {
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$uid = $backend->checkPassword($loginName, $password);
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if ($uid !== false) {
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return $this->getUserObject($uid, $backend);
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}
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}
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}
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\OC::$server->getLogger()->warning('Login failed: \''. $loginName .'\' (Remote IP: \''. \OC::$server->getRequest()->getRemoteAddress(). '\')', ['app' => 'core']);
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return false;
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}
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/**
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* search by user id
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*
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* @param string $pattern
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* @param int $limit
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* @param int $offset
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* @return \OC\User\User[]
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*/
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public function search($pattern, $limit = null, $offset = null) {
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$users = array();
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foreach ($this->backends as $backend) {
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$backendUsers = $backend->getUsers($pattern, $limit, $offset);
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if (is_array($backendUsers)) {
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foreach ($backendUsers as $uid) {
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$users[$uid] = $this->getUserObject($uid, $backend);
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}
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}
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}
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uasort($users, function ($a, $b) {
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/**
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* @var \OC\User\User $a
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* @var \OC\User\User $b
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*/
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return strcmp($a->getUID(), $b->getUID());
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});
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return $users;
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}
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/**
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* search by displayName
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*
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* @param string $pattern
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* @param int $limit
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* @param int $offset
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* @return \OC\User\User[]
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*/
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public function searchDisplayName($pattern, $limit = null, $offset = null) {
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$users = array();
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foreach ($this->backends as $backend) {
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$backendUsers = $backend->getDisplayNames($pattern, $limit, $offset);
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if (is_array($backendUsers)) {
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foreach ($backendUsers as $uid => $displayName) {
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$users[] = $this->getUserObject($uid, $backend);
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}
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}
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}
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usort($users, function ($a, $b) {
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/**
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* @var \OC\User\User $a
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* @var \OC\User\User $b
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*/
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return strcmp(strtolower($a->getDisplayName()), strtolower($b->getDisplayName()));
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});
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return $users;
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}
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/**
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* @param string $uid
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* @param string $password
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* @throws \Exception
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* @return bool|\OC\User\User the created user or false
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*/
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public function createUser($uid, $password) {
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$l = \OC::$server->getL10N('lib');
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// Check the name for bad characters
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// Allowed are: "a-z", "A-Z", "0-9" and "_.@-'"
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if (preg_match('/[^a-zA-Z0-9 _\.@\-\']/', $uid)) {
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throw new \Exception($l->t('Only the following characters are allowed in a username:'
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. ' "a-z", "A-Z", "0-9", and "_.@-\'"'));
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}
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// No empty username
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if (trim($uid) == '') {
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throw new \Exception($l->t('A valid username must be provided'));
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}
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// No whitespace at the beginning or at the end
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if (strlen(trim($uid, "\t\n\r\0\x0B\xe2\x80\x8b")) !== strlen(trim($uid))) {
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throw new \Exception($l->t('Username contains whitespace at the beginning or at the end'));
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}
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// No empty password
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if (trim($password) == '') {
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throw new \Exception($l->t('A valid password must be provided'));
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}
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// Check if user already exists
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if ($this->userExists($uid)) {
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throw new \Exception($l->t('The username is already being used'));
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}
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$this->emit('\OC\User', 'preCreateUser', array($uid, $password));
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(Backend::CREATE_USER)) {
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$backend->createUser($uid, $password);
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$user = $this->getUserObject($uid, $backend);
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$this->emit('\OC\User', 'postCreateUser', array($user, $password));
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return $user;
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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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* returns how many users per backend exist (if supported by backend)
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*
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* @param boolean $hasLoggedIn when true only users that have a lastLogin
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* entry in the preferences table will be affected
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* @return array|int an array of backend class as key and count number as value
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* if $hasLoggedIn is true only an int is returned
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*/
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public function countUsers($hasLoggedIn = false) {
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if ($hasLoggedIn) {
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return $this->countSeenUsers();
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}
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$userCountStatistics = [];
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(Backend::COUNT_USERS)) {
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$backendUsers = $backend->countUsers();
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if($backendUsers !== false) {
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if($backend instanceof IUserBackend) {
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$name = $backend->getBackendName();
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} else {
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$name = get_class($backend);
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}
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if(isset($userCountStatistics[$name])) {
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$userCountStatistics[$name] += $backendUsers;
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} else {
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$userCountStatistics[$name] = $backendUsers;
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}
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}
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}
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}
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return $userCountStatistics;
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}
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/**
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* The callback is executed for each user on each backend.
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* If the callback returns false no further users will be retrieved.
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*
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* @param \Closure $callback
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* @param string $search
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* @param boolean $onlySeen when true only users that have a lastLogin entry
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* in the preferences table will be affected
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* @since 9.0.0
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*/
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public function callForAllUsers(\Closure $callback, $search = '', $onlySeen = false) {
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if ($onlySeen) {
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$this->callForSeenUsers($callback);
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} else {
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foreach ($this->getBackends() as $backend) {
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$limit = 500;
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$offset = 0;
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do {
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$users = $backend->getUsers($search, $limit, $offset);
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foreach ($users as $uid) {
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if (!$backend->userExists($uid)) {
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continue;
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}
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$user = $this->getUserObject($uid, $backend, false);
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$return = $callback($user);
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if ($return === false) {
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break;
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}
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}
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$offset += $limit;
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} while (count($users) >= $limit);
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}
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}
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}
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/**
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* returns how many users have logged in once
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*
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* @return int
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* @since 11.0.0
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*/
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public function countSeenUsers() {
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$queryBuilder = \OC::$server->getDatabaseConnection()->getQueryBuilder();
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$queryBuilder->select($queryBuilder->createFunction('COUNT(*)'))
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->from('preferences')
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->where($queryBuilder->expr()->eq('appid', $queryBuilder->createNamedParameter('login')))
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->andWhere($queryBuilder->expr()->eq('configkey', $queryBuilder->createNamedParameter('lastLogin')))
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->andWhere($queryBuilder->expr()->isNotNull('configvalue'));
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$query = $queryBuilder->execute();
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$result = (int)$query->fetchColumn();
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$query->closeCursor();
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return $result;
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}
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/**
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* @param \Closure $callback
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* @since 11.0.0
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*/
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public function callForSeenUsers(\Closure $callback) {
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$limit = 1000;
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$offset = 0;
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do {
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$userIds = $this->getSeenUserIds($limit, $offset);
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$offset += $limit;
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foreach ($userIds as $userId) {
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foreach ($this->backends as $backend) {
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if ($backend->userExists($userId)) {
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$user = $this->getUserObject($userId, $backend, false);
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$return = $callback($user);
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if ($return === false) {
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return;
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}
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}
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}
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}
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} while (count($userIds) >= $limit);
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}
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/**
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* Getting all userIds that have a listLogin value requires checking the
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* value in php because on oracle you cannot use a clob in a where clause,
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* preventing us from doing a not null or length(value) > 0 check.
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*
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* @param int $limit
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* @param int $offset
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* @return string[] with user ids
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*/
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private function getSeenUserIds($limit = null, $offset = null) {
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$queryBuilder = \OC::$server->getDatabaseConnection()->getQueryBuilder();
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$queryBuilder->select(['userid'])
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->from('preferences')
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->where($queryBuilder->expr()->eq(
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'appid', $queryBuilder->createNamedParameter('login'))
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)
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->andWhere($queryBuilder->expr()->eq(
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'configkey', $queryBuilder->createNamedParameter('lastLogin'))
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)
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->andWhere($queryBuilder->expr()->isNotNull('configvalue')
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);
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if ($limit !== null) {
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$queryBuilder->setMaxResults($limit);
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}
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if ($offset !== null) {
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$queryBuilder->setFirstResult($offset);
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}
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$query = $queryBuilder->execute();
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$result = [];
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while ($row = $query->fetch()) {
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$result[] = $row['userid'];
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}
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$query->closeCursor();
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return $result;
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}
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/**
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* @param string $email
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* @return IUser[]
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* @since 9.1.0
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*/
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public function getByEmail($email) {
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$userIds = $this->config->getUsersForUserValue('settings', 'email', $email);
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return array_map(function($uid) {
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return $this->get($uid);
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}, $userIds);
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}
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}
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