nextcloud/apps/user_ldap/lib/Helper.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Brice Maron <brice@bmaron.net>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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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 Morris Jobke <hey@morrisjobke.de>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Roger Szabo <roger.szabo@web.de>
* @author root <root@localhost.localdomain>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
* @author Vinicius Cubas Brand <vinicius@eita.org.br>
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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
* it under the terms of the GNU Affero General Public License, version 3,
* 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
* 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,
* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
*/
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namespace OCA\User_LDAP;
use OC\Cache\CappedMemoryCache;
use OCP\IConfig;
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class Helper {
/** @var IConfig */
private $config;
/** @var CappedMemoryCache */
protected $sanitizeDnCache;
/**
* Helper constructor.
*
* @param IConfig $config
*/
public function __construct(IConfig $config) {
$this->config = $config;
$this->sanitizeDnCache = new CappedMemoryCache(10000);
}
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/**
* returns prefixes for each saved LDAP/AD server configuration.
*
* @param bool $activeConfigurations optional, whether only active configuration shall be
* retrieved, defaults to false
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* @return array with a list of the available prefixes
*
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* Configuration prefixes are used to set up configurations for n LDAP or
* AD servers. Since configuration is stored in the database, table
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* appconfig under appid user_ldap, the common identifiers in column
* 'configkey' have a prefix. The prefix for the very first server
* configuration is empty.
* Configkey Examples:
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* Server 1: ldap_login_filter
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* Server 2: s1_ldap_login_filter
* Server 3: s2_ldap_login_filter
*
* The prefix needs to be passed to the constructor of Connection class,
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* except the default (first) server shall be connected to.
*
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*/
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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public function getServerConfigurationPrefixes($activeConfigurations = false) {
$referenceConfigkey = 'ldap_configuration_active';
$keys = $this->getServersConfig($referenceConfigkey);
$prefixes = [];
foreach ($keys as $key) {
if ($activeConfigurations && $this->config->getAppValue('user_ldap', $key, '0') !== '1') {
continue;
}
$len = strlen($key) - strlen($referenceConfigkey);
$prefixes[] = substr($key, 0, $len);
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}
asort($prefixes);
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return $prefixes;
}
/**
*
* determines the host for every configured connection
*
* @return array an array with configprefix as keys
*
*/
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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public function getServerConfigurationHosts() {
$referenceConfigkey = 'ldap_host';
$keys = $this->getServersConfig($referenceConfigkey);
$result = [];
foreach ($keys as $key) {
$len = strlen($key) - strlen($referenceConfigkey);
$prefix = substr($key, 0, $len);
$result[$prefix] = $this->config->getAppValue('user_ldap', $key);
}
return $result;
}
/**
* return the next available configuration prefix
*
* @return string
*/
public function getNextServerConfigurationPrefix() {
$serverConnections = $this->getServerConfigurationPrefixes();
if (count($serverConnections) === 0) {
return 's01';
}
sort($serverConnections);
$lastKey = array_pop($serverConnections);
$lastNumber = (int)str_replace('s', '', $lastKey);
return 's' . str_pad($lastNumber + 1, 2, '0', STR_PAD_LEFT);
}
private function getServersConfig($value) {
$regex = '/' . $value . '$/S';
$keys = $this->config->getAppKeys('user_ldap');
$result = [];
foreach ($keys as $key) {
if (preg_match($regex, $key) === 1) {
$result[] = $key;
}
}
return $result;
}
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/**
* deletes a given saved LDAP/AD server configuration.
*
* @param string $prefix the configuration prefix of the config to delete
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* @return bool true on success, false otherwise
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*/
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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public function deleteServerConfiguration($prefix) {
if (!in_array($prefix, self::getServerConfigurationPrefixes())) {
return false;
}
$saveOtherConfigurations = '';
if (empty($prefix)) {
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$saveOtherConfigurations = 'AND `configkey` NOT LIKE \'s%\'';
}
$query = \OC_DB::prepare('
DELETE
FROM `*PREFIX*appconfig`
WHERE `configkey` LIKE ?
' . $saveOtherConfigurations . '
AND `appid` = \'user_ldap\'
AND `configkey` NOT IN (\'enabled\', \'installed_version\', \'types\', \'bgjUpdateGroupsLastRun\')
');
$delRows = $query->execute([$prefix . '%']);
if ($delRows === null) {
return false;
}
if ($delRows === 0) {
return false;
}
return true;
}
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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/**
* checks whether there is one or more disabled LDAP configurations
*
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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* @return bool
* @throws \Exception
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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*/
public function haveDisabledConfigurations() {
$all = $this->getServerConfigurationPrefixes(false);
$active = $this->getServerConfigurationPrefixes(true);
if (!is_array($all) || !is_array($active)) {
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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throw new \Exception('Unexpected Return Value');
}
return count($all) !== count($active) || count($all) === 0;
}
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/**
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* extracts the domain from a given URL
*
* @param string $url the URL
* @return string|false domain as string on success, false otherwise
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*/
LDAP User Cleanup: Port from stable7 without further adjustements LDAP User Cleanup background job for user clean up adjust user backend for clean up register background job remove dead code dependency injection make Helper non-static for proper testing check whether it is OK to run clean up job. Do not forget to pass arguments. use correct method to get the config from server methods can be private, proper indirect testing is given no automatic user deletion make limit readable for test purposes make method less complex add first tests let preferences accept limit and offset for getUsersForValue DI via constructor does not work for background jobs after detecting, now we have retrieving deleted users and their details we need this method to be public for now finalize export method, add missing getter clean up namespaces and get rid of unnecessary files helper is not static anymore cleanup according to scrutinizer add cli tool to show deleted users uses are necessary after recent namespace change also remove user from mappings table on deletion add occ command to delete users fix use statement improve output big fixes / improvements PHP doc return true in userExists early for cleaning up deleted users bump version control state and interval with one config.php setting, now ldapUserCleanupInterval. 0 will disable it. enabled by default. improve doc rename cli method to be consistent with others introduce ldapUserCleanupInterval in sample config don't show last login as unix epoche start when no login happend less log output consistent namespace for OfflineUser rename GarbageCollector to DeletedUsersIndex and move it to user subdir fix unit tests add tests for deleteUser more test adjustements Conflicts: apps/user_ldap/ajax/clearMappings.php apps/user_ldap/appinfo/app.php apps/user_ldap/lib/access.php apps/user_ldap/lib/helper.php apps/user_ldap/tests/helper.php core/register_command.php lib/private/preferences.php lib/private/user.php add ldap:check-user to check user existance on the fly Conflicts: apps/user_ldap/lib/helper.php forgotten file PHPdoc fixes, no code change and don't forget to adjust tests
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public function getDomainFromURL($url) {
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$uinfo = parse_url($url);
if (!is_array($uinfo)) {
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return false;
}
$domain = false;
if (isset($uinfo['host'])) {
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$domain = $uinfo['host'];
} elseif (isset($uinfo['path'])) {
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$domain = $uinfo['path'];
}
return $domain;
}
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/**
*
* Set the LDAPProvider in the config
*
*/
public function setLDAPProvider() {
$current = \OC::$server->getConfig()->getSystemValue('ldapProviderFactory', null);
if (is_null($current)) {
\OC::$server->getConfig()->setSystemValue('ldapProviderFactory', LDAPProviderFactory::class);
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}
}
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/**
* sanitizes a DN received from the LDAP server
*
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* @param array $dn the DN in question
* @return array|string the sanitized DN
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*/
public function sanitizeDN($dn) {
//treating multiple base DNs
if (is_array($dn)) {
$result = [];
foreach ($dn as $singleDN) {
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$result[] = $this->sanitizeDN($singleDN);
}
return $result;
}
if (!is_string($dn)) {
throw new \LogicException('String expected ' . \gettype($dn) . ' given');
}
if (($sanitizedDn = $this->sanitizeDnCache->get($dn)) !== null) {
return $sanitizedDn;
}
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//OID sometimes gives back DNs with whitespace after the comma
// a la "uid=foo, cn=bar, dn=..." We need to tackle this!
$sanitizedDn = preg_replace('/([^\\\]),(\s+)/u', '\1,', $dn);
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//make comparisons and everything work
$sanitizedDn = mb_strtolower($sanitizedDn, 'UTF-8');
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//escape DN values according to RFC 2253 this is already done by ldap_explode_dn
//to use the DN in search filters, \ needs to be escaped to \5c additionally
//to use them in bases, we convert them back to simple backslashes in readAttribute()
$replacements = [
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'\,' => '\5c2C',
'\=' => '\5c3D',
'\+' => '\5c2B',
'\<' => '\5c3C',
'\>' => '\5c3E',
'\;' => '\5c3B',
'\"' => '\5c22',
'\#' => '\5c23',
'(' => '\28',
')' => '\29',
'*' => '\2A',
];
$sanitizedDn = str_replace(array_keys($replacements), array_values($replacements), $sanitizedDn);
$this->sanitizeDnCache->set($dn, $sanitizedDn);
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return $sanitizedDn;
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}
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/**
* converts a stored DN so it can be used as base parameter for LDAP queries, internally we store them for usage in LDAP filters
*
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* @param string $dn the DN
* @return string
*/
public function DNasBaseParameter($dn) {
return str_ireplace('\\5c', '\\', $dn);
}
/**
* listens to a hook thrown by server2server sharing and replaces the given
* login name by a username, if it matches an LDAP user.
*
* @param array $param
* @throws \Exception
*/
public static function loginName2UserName($param) {
if (!isset($param['uid'])) {
throw new \Exception('key uid is expected to be set in $param');
}
//ain't it ironic?
$helper = new Helper(\OC::$server->getConfig());
$configPrefixes = $helper->getServerConfigurationPrefixes(true);
$ldapWrapper = new LDAP();
$ocConfig = \OC::$server->getConfig();
$notificationManager = \OC::$server->getNotificationManager();
$userSession = \OC::$server->getUserSession();
$userPluginManager = \OC::$server->query('LDAPUserPluginManager');
$userBackend = new User_Proxy(
$configPrefixes, $ldapWrapper, $ocConfig, $notificationManager, $userSession, $userPluginManager
);
$uid = $userBackend->loginName2UserName($param['uid']);
if ($uid !== false) {
$param['uid'] = $uid;
}
}
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}