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<?php |
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/** |
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* sysPass |
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* |
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* @author nuxsmin |
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* @link https://syspass.org |
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* @copyright 2012-2018, Rubén Domínguez nuxsmin@$syspass.org |
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* |
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* This file is part of sysPass. |
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* |
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* sysPass is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* sysPass 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 General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with sysPass. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace SP\Providers\Auth\Ldap; |
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use SP\Core\Events\Event; |
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use SP\Core\Events\EventMessage; |
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use SP\Http\Address; |
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/** |
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* Class LdapMsAzureAd |
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* |
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* LDAP authentication based on Azure Active Directory |
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* |
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* @package SP\Auth\Ldap |
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*/ |
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final class LdapMsAzureAd extends Ldap |
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{ |
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const FILTER_USER_OBJECT = '(|(objectCategory=person)(objectClass=user))'; |
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const FILTER_GROUP_OBJECT = '(objectCategory=group)'; |
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const FILTER_USER_ATTRIBUTES = ['samaccountname', 'cn', 'uid', 'userPrincipalName']; |
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const FILTER_GROUP_ATTRIBUTES = ['memberOf', 'groupMembership', 'memberof:1.2.840.113556.1.4.1941:']; |
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/** |
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* Devolver el filtro para comprobar la pertenecia al grupo |
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* |
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* @return string |
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* @throws \SP\Core\Exceptions\SPException |
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*/ |
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public function getGroupMembershipFilter(): string |
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{ |
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if (empty($this->ldapParams->getGroup())) { |
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return self::FILTER_USER_OBJECT; |
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} |
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return '(&(|' |
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. LdapUtil::getAttributesForFilter( |
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self::FILTER_GROUP_ATTRIBUTES, |
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$this->getGroupDn()) |
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. ')' |
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. self::FILTER_USER_OBJECT |
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. ')'; |
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} |
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/** |
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* Obtener el filtro para buscar el usuario |
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* |
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* @param string $userLogin |
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* |
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* @return string |
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*/ |
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public function getUserDnFilter(string $userLogin): string |
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{ |
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return '(&(|' |
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. LdapUtil::getAttributesForFilter(self::FILTER_USER_ATTRIBUTES, $userLogin) |
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. ')' |
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. self::FILTER_USER_OBJECT |
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. ')'; |
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} |
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/** |
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* Devolver el filtro para objetos del tipo grupo |
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* |
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* @return string |
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*/ |
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public function getGroupObjectFilter(): string |
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{ |
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return self::FILTER_GROUP_OBJECT; |
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} |
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/** |
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* Buscar al usuario en un grupo. |
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* |
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* @param string $userDn |
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* @param string $userLogin |
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* @param array $groupsDn |
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* |
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* @return bool |
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* @throws LdapException |
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*/ |
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public function isUserInGroup(string $userDn, string $userLogin, array $groupsDn): bool |
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{ |
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// Comprobar si está establecido el filtro de grupo o el grupo coincide con |
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// los grupos del usuario |
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if (empty($this->ldapParams->getGroup()) |
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|| $this->ldapParams->getGroup() === '*' |
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|| in_array($this->getGroupDn(), $groupsDn) |
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) { |
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$this->eventDispatcher->notifyEvent('ldap.check.group', |
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new Event($this, EventMessage::factory() |
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->addDescription(__u('User in group verified')) |
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->addDetail(__u('User'), $userLogin) |
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->addDetail(__u('Group'), $this->ldapParams->getGroup()))); |
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return true; |
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} |
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return $this->checkUserInGroupByFilter($userLogin); |
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} |
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/** |
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* @param string $userLogin |
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* |
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* @return bool |
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* @throws LdapException |
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*/ |
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private function checkUserInGroupByFilter(string $userLogin): bool |
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{ |
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$groupDn = $this->getGroupDn(); |
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$filter = '(&(|' |
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. LdapUtil::getAttributesForFilter(self::FILTER_USER_ATTRIBUTES, $userLogin) |
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. ')(|' |
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. LdapUtil::getAttributesForFilter(self::FILTER_GROUP_ATTRIBUTES, $groupDn) |
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. '))'; |
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$searchResults = $this->ldapActions->getObjects($filter, ['dn']); |
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if (isset($searchResults['count']) |
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&& (int)$searchResults['count'] === 0 |
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) { |
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$this->eventDispatcher->notifyEvent('ldap.check.group', |
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new Event($this, EventMessage::factory() |
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->addDescription(__u('User does not belong to the group')) |
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->addDetail(__u('User'), $userLogin) |
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->addDetail(__u('Group'), $groupDn) |
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->addDetail('LDAP FILTER', $filter))); |
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return false; |
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} |
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$this->eventDispatcher->notifyEvent('ldap.check.group', |
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new Event($this, EventMessage::factory() |
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->addDescription(__u('User in group verified')) |
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->addDetail(__u('User'), $userLogin) |
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->addDetail(__u('Group'), $groupDn))); |
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return true; |
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} |
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/** |
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* Obtener el servidor de LDAP a utilizar |
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* |
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* @return mixed |
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*/ |
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protected function pickServer() |
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{ |
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$server = $this->ldapParams->getServer(); |
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if (preg_match(Address::PATTERN_IP_ADDRESS, $server)) { |
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return $server; |
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} |
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$dnsServerQuery = '_msdcs' . substr($server, strpos($server, '.')); |
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logger(sprintf('Querying DNS zone: %s', $dnsServerQuery)); |
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$records = dns_get_record($dnsServerQuery, DNS_NS); |
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if (empty($records)) { |
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return $server; |
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} |
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$adServers = []; |
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foreach ($records as $record) { |
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$adServers[] = $record['target']; |
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}; |
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return count($adServers) > 0 ? array_rand($adServers) : $server; |
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} |
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} |
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nuxsmin /
sysPass
