289 lines
7.0 KiB
PHP
289 lines
7.0 KiB
PHP
<?php
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/**
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* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\User;
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use OC\Hooks\PublicEmitter;
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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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*
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* @package OC\User
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*/
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class Manager extends PublicEmitter {
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/**
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* @var \OC_User_Interface[] $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 \OC\AllConfig $config
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*/
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private $config;
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/**
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* @param \OC\AllConfig $config
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*/
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public function __construct($config = null) {
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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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$i = array_search($user, $cachedUsers);
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if ($i !== false) {
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unset($cachedUsers[$i]);
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}
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});
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$this->listen('\OC\User', 'postLogin', function ($user) {
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$user->updateLastLoginTimestamp();
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});
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$this->listen('\OC\User', 'postRememberedLogin', function ($user) {
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$user->updateLastLoginTimestamp();
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});
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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 \OC_User_Interface $backend
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*/
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public function registerBackend($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 \OC_User_Interface $backend
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*/
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public function removeBackend($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 $uid
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* @return \OC\User\User
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*/
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public function get($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 \OC_User_Interface $backend
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* @return \OC\User\User
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*/
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protected function getUserObject($uid, $backend) {
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if (isset($this->cachedUsers[$uid])) {
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return $this->cachedUsers[$uid];
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}
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$this->cachedUsers[$uid] = new User($uid, $backend, $this, $this->config);
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return $this->cachedUsers[$uid];
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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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* remove deleted user from cache
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*
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* @param string $uid
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* @return bool
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*/
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public function delete($uid) {
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if (isset($this->cachedUsers[$uid])) {
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unset($this->cachedUsers[$uid]);
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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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* 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, $password) {
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(\OC_USER_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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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 $b
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*/
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return strcmp($a->getDisplayName(), $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 $password
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* @throws \Exception
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* @return bool|\OC\User\User the created user of false
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*/
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public function createUser($uid, $password) {
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$l = \OC_L10N::get('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 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(\OC_USER_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 $user;
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}
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}
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return false;
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}
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/**
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* returns how many users per backend exist (if supported by backend)
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*
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* @return array an array of backend class as key and count number as value
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*/
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public function countUsers() {
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$userCountStatistics = array();
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foreach ($this->backends as $backend) {
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if ($backend->implementsActions(\OC_USER_BACKEND_COUNT_USERS)) {
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$backendusers = $backend->countUsers();
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if($backendusers !== false) {
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if(isset($userCountStatistics[get_class($backend)])) {
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$userCountStatistics[get_class($backend)] += $backendusers;
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} else {
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$userCountStatistics[get_class($backend)] = $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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