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<?php |
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/** |
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* Class LDAPService |
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* |
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* Provides LDAP operations expressed in terms of the SilverStripe domain. |
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* All other modules should access LDAP through this class. |
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* |
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* This class builds on top of LDAPGateway's detailed code by adding: |
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* - caching |
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* - data aggregation and restructuring from multiple lower-level calls |
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* - error handling |
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* |
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* LDAPService relies on Zend LDAP module's data structures for some parameters and some return values. |
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*/ |
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class LDAPService extends Object implements Flushable |
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{ |
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/** |
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* @var array |
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*/ |
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private static $dependencies = [ |
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'gateway' => '%$LDAPGateway' |
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]; |
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/** |
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* If configured, only user objects within these locations will be exposed to this service. |
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* |
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* @var array |
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* @config |
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*/ |
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private static $users_search_locations = []; |
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/** |
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* If configured, only group objects within these locations will be exposed to this service. |
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* @var array |
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* |
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* @config |
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*/ |
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private static $groups_search_locations = []; |
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/** |
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* Location to create new users in (distinguished name). |
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* @var string |
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* |
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* @config |
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*/ |
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private static $new_users_dn; |
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/** |
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* Location to create new groups in (distinguished name). |
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* @var string |
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* |
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* @config |
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*/ |
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private static $new_groups_dn; |
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/** |
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* @var array |
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*/ |
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private static $_cache_nested_groups = []; |
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/** |
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* If this is configured to a "Code" value of a {@link Group} in SilverStripe, the user will always |
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* be added to this group's membership when imported, regardless of any sort of group mappings. |
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* |
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* @var string |
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* @config |
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*/ |
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private static $default_group; |
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/** |
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* For samba4 directory, there is no way to enforce password history on password resets. |
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* This only happens with changePassword (which requires the old password). |
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* This works around it by making the old password up and setting it administratively. |
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* |
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* A cleaner fix would be to use the LDAP_SERVER_POLICY_HINTS_OID connection flag, |
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* but it's not implemented in samba https://bugzilla.samba.org/show_bug.cgi?id=12020 |
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* |
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* @var bool |
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*/ |
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private static $password_history_workaround = false; |
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/** |
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* Get the cache objecgt used for LDAP results. Note that the default lifetime set here |
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* is 8 hours, but you can change that by calling SS_Cache::set_lifetime('ldap', <lifetime in seconds>) |
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* |
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* @return Zend_Cache_Frontend |
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*/ |
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public static function get_cache() |
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{ |
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return SS_Cache::factory('ldap', 'Output', [ |
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'automatic_serialization' => true, |
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'lifetime' => 28800 |
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]); |
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} |
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/** |
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* Flushes out the LDAP results cache when flush=1 is called. |
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*/ |
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public static function flush() |
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{ |
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$cache = self::get_cache(); |
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$cache->clean(Zend_Cache::CLEANING_MODE_ALL); |
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} |
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/** |
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* @var LDAPGateway |
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*/ |
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public $gateway; |
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/** |
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* Setter for gateway. Useful for overriding the gateway with a fake for testing. |
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* @var LDAPGateway |
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*/ |
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public function setGateway($gateway) |
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{ |
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$this->gateway = $gateway; |
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} |
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/** |
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* Checkes whether or not the service is enabled. |
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* |
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* @return bool |
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*/ |
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public function enabled() |
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{ |
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$options = Config::inst()->get('LDAPGateway', 'options'); |
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return !empty($options); |
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} |
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/** |
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* Authenticate the given username and password with LDAP. |
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* |
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* @param string $username |
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* @param string $password |
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* |
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* @return array |
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*/ |
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public function authenticate($username, $password) |
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{ |
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$result = $this->gateway->authenticate($username, $password); |
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$messages = $result->getMessages(); |
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// all messages beyond the first one are for debugging and |
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// not suitable to display to the user. |
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foreach ($messages as $i => $message) { |
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if ($i > 0) { |
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SS_Log::log(str_replace("\n", "\n ", $message), SS_Log::DEBUG); |
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} |
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} |
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$message = $messages[0]; // first message is user readable, suitable for showing on login form |
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// show better errors than the defaults for various status codes returned by LDAP |
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View Code Duplication |
if (!empty($messages[1]) && strpos($messages[1], 'NT_STATUS_ACCOUNT_LOCKED_OUT') !== false) { |
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$message = _t( |
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'LDAPService.ACCOUNTLOCKEDOUT', |
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'Your account has been temporarily locked because of too many failed login attempts. ' . |
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'Please try again later.' |
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); |
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} |
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if (!empty($messages[1]) && strpos($messages[1], 'NT_STATUS_LOGON_FAILURE') !== false) { |
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$message = _t( |
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'LDAPService.INVALIDCREDENTIALS', |
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'The provided details don\'t seem to be correct. Please try again.' |
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); |
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} |
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return [ |
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'success' => $result->getCode() === 1, |
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'identity' => $result->getIdentity(), |
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'message' => $message |
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]; |
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} |
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/** |
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* Return all nodes (organizational units, containers, and domains) within the current base DN. |
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* |
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* @param boolean $cached Cache the results from AD, so that subsequent calls are faster. Enabled by default. |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @return array |
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*/ |
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public function getNodes($cached = true, $attributes = []) |
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{ |
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$cache = self::get_cache(); |
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$results = $cache->load('nodes' . md5(implode('', $attributes))); |
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if (!$results || !$cached) { |
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$results = []; |
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$records = $this->gateway->getNodes(null, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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foreach ($records as $record) { |
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$results[$record['dn']] = $record; |
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} |
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$cache->save($results); |
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} |
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return $results; |
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} |
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/** |
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* Return all AD groups in configured search locations, including all nested groups. |
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* Uses groups_search_locations if defined, otherwise falls back to NULL, which tells LDAPGateway |
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* to use the default baseDn defined in the connection. |
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* |
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* @param boolean $cached Cache the results from AD, so that subsequent calls are faster. Enabled by default. |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @param string $indexBy Attribute to use as an index. |
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* @return array |
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*/ |
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public function getGroups($cached = true, $attributes = [], $indexBy = 'dn') |
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{ |
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$searchLocations = $this->config()->groups_search_locations ?: [null]; |
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$cache = self::get_cache(); |
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$results = $cache->load('groups' . md5(implode('', array_merge($searchLocations, $attributes)))); |
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if (!$results || !$cached) { |
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$results = []; |
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View Code Duplication |
foreach ($searchLocations as $searchLocation) { |
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$records = $this->gateway->getGroups($searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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if (!$records) { |
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continue; |
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} |
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foreach ($records as $record) { |
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$results[$record[$indexBy]] = $record; |
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} |
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} |
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$cache->save($results); |
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} |
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return $results; |
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} |
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/** |
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* Return all member groups (and members of those, recursively) underneath a specific group DN. |
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* Note that these get cached in-memory per-request for performance to avoid re-querying for the same results. |
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* |
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* @param string $dn |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @return array |
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*/ |
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public function getNestedGroups($dn, $attributes = []) |
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{ |
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if (isset(self::$_cache_nested_groups[$dn])) { |
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return self::$_cache_nested_groups[$dn]; |
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} |
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$searchLocations = $this->config()->groups_search_locations ?: [null]; |
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$results = []; |
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View Code Duplication |
foreach ($searchLocations as $searchLocation) { |
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$records = $this->gateway->getNestedGroups($dn, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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foreach ($records as $record) { |
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$results[$record['dn']] = $record; |
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} |
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} |
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self::$_cache_nested_groups[$dn] = $results; |
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return $results; |
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} |
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/** |
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* Get a particular AD group's data given a GUID. |
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* |
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* @param string $guid |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @return array |
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*/ |
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View Code Duplication |
public function getGroupByGUID($guid, $attributes = []) |
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{ |
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$searchLocations = $this->config()->groups_search_locations ?: [null]; |
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foreach ($searchLocations as $searchLocation) { |
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$records = $this->gateway->getGroupByGUID($guid, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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if ($records) { |
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return $records[0]; |
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} |
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} |
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} |
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/** |
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* Get a particular AD group's data given a DN. |
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* |
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* @param string $dn |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @return array |
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*/ |
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View Code Duplication |
public function getGroupByDN($dn, $attributes = []) |
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{ |
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$searchLocations = $this->config()->groups_search_locations ?: [null]; |
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foreach ($searchLocations as $searchLocation) { |
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$records = $this->gateway->getGroupByDN($dn, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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if ($records) { |
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return $records[0]; |
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} |
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} |
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} |
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/** |
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* Return all AD users in configured search locations, including all users in nested groups. |
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* Uses users_search_locations if defined, otherwise falls back to NULL, which tells LDAPGateway |
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* to use the default baseDn defined in the connection. |
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* |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @return array |
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*/ |
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public function getUsers($attributes = []) |
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{ |
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$searchLocations = $this->config()->users_search_locations ?: [null]; |
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$results = []; |
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View Code Duplication |
foreach ($searchLocations as $searchLocation) { |
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$records = $this->gateway->getUsers($searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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if (!$records) { |
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continue; |
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} |
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foreach ($records as $record) { |
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$results[$record['objectguid']] = $record; |
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} |
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} |
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return $results; |
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} |
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/** |
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* Get a specific AD user's data given a GUID. |
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* |
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* @param string $guid |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* @return array |
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*/ |
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View Code Duplication |
public function getUserByGUID($guid, $attributes = []) |
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{ |
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$searchLocations = $this->config()->users_search_locations ?: [null]; |
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foreach ($searchLocations as $searchLocation) { |
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$records = $this->gateway->getUserByGUID($guid, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
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if ($records) { |
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return $records[0]; |
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} |
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} |
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} |
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/** |
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* Get a specific AD user's data given a DN. |
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* |
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* @param string $dn |
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* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
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* |
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* @return array |
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*/ |
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View Code Duplication |
public function getUserByDN($dn, $attributes = []) |
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{ |
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$searchLocations = $this->config()->users_search_locations ?: [null]; |
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foreach ($searchLocations as $searchLocation) { |
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|
$records = $this->gateway->getUserByDN($dn, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
356
|
|
|
if ($records) { |
|
|
|
|
357
|
|
|
return $records[0]; |
358
|
|
|
} |
359
|
|
|
} |
360
|
|
|
} |
361
|
|
|
|
362
|
|
|
/** |
363
|
|
|
* Get a specific user's data given an email. |
364
|
|
|
* |
365
|
|
|
* @param string $email |
366
|
|
|
* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
367
|
|
|
* @return array |
368
|
|
|
*/ |
369
|
|
View Code Duplication |
public function getUserByEmail($email, $attributes = []) |
|
|
|
|
370
|
|
|
{ |
371
|
|
|
$searchLocations = $this->config()->users_search_locations ?: [null]; |
372
|
|
|
foreach ($searchLocations as $searchLocation) { |
373
|
|
|
$records = $this->gateway->getUserByEmail($email, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
374
|
|
|
if ($records) { |
|
|
|
|
375
|
|
|
return $records[0]; |
376
|
|
|
} |
377
|
|
|
} |
378
|
|
|
} |
379
|
|
|
|
380
|
|
|
/** |
381
|
|
|
* Get a specific user's data given a username. |
382
|
|
|
* |
383
|
|
|
* @param string $username |
384
|
|
|
* @param array $attributes List of specific AD attributes to return. Empty array means return everything. |
385
|
|
|
* @return array |
386
|
|
|
*/ |
387
|
|
View Code Duplication |
public function getUserByUsername($username, $attributes = []) |
|
|
|
|
388
|
|
|
{ |
389
|
|
|
$searchLocations = $this->config()->users_search_locations ?: [null]; |
390
|
|
|
foreach ($searchLocations as $searchLocation) { |
391
|
|
|
$records = $this->gateway->getUserByUsername($username, $searchLocation, Zend\Ldap\Ldap::SEARCH_SCOPE_SUB, $attributes); |
392
|
|
|
if ($records) { |
|
|
|
|
393
|
|
|
return $records[0]; |
394
|
|
|
} |
395
|
|
|
} |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
/** |
399
|
|
|
* Get a username for an email. |
400
|
|
|
* |
401
|
|
|
* @param string $email |
402
|
|
|
* @return string|null |
403
|
|
|
*/ |
404
|
|
|
public function getUsernameByEmail($email) |
405
|
|
|
{ |
406
|
|
|
$data = $this->getUserByEmail($email); |
407
|
|
|
if (empty($data)) { |
408
|
|
|
return null; |
409
|
|
|
} |
410
|
|
|
|
411
|
|
|
return $this->gateway->getCanonicalUsername($data); |
412
|
|
|
} |
413
|
|
|
|
414
|
|
|
/** |
415
|
|
|
* Given a group DN, get the group membership data in LDAP. |
416
|
|
|
* |
417
|
|
|
* @param string $dn |
418
|
|
|
* @return array |
419
|
|
|
*/ |
420
|
|
|
public function getLDAPGroupMembers($dn) |
421
|
|
|
{ |
422
|
|
|
$groupObj = Group::get()->filter('DN', $dn)->first(); |
423
|
|
|
$groupData = $this->getGroupByGUID($groupObj->GUID); |
424
|
|
|
$members = !empty($groupData['member']) ? $groupData['member'] : []; |
425
|
|
|
// If a user belongs to a single group, this comes through as a string. |
426
|
|
|
// Normalise to a array so it's consistent. |
427
|
|
|
if ($members && is_string($members)) { |
428
|
|
|
$members = [$members]; |
429
|
|
|
} |
430
|
|
|
|
431
|
|
|
return $members; |
432
|
|
|
} |
433
|
|
|
|
434
|
|
|
/** |
435
|
|
|
* Update the current Member record with data from LDAP. |
436
|
|
|
* |
437
|
|
|
* It's allowed to pass an unwritten Member record here, because it's not always possible to satisfy |
438
|
|
|
* field constraints without importing data from LDAP (for example if the application requires Username |
439
|
|
|
* through a Validator). Even though unwritten, it still must have the GUID set. |
440
|
|
|
* |
441
|
|
|
* Constraints: |
442
|
|
|
* - GUID of the member must have already been set, for integrity reasons we don't allow it to change here. |
443
|
|
|
* |
444
|
|
|
* @param Member |
445
|
|
|
* @param array|null $data If passed, this is pre-existing AD attribute data to update the Member with. |
446
|
|
|
* If not given, the data will be looked up by the user's GUID. |
447
|
|
|
* @return bool |
448
|
|
|
*/ |
449
|
|
|
public function updateMemberFromLDAP(Member $member, $data = null) |
450
|
|
|
{ |
451
|
|
|
if (!$this->enabled()) { |
452
|
|
|
return false; |
453
|
|
|
} |
454
|
|
|
|
455
|
|
|
if (!$member->GUID) { |
456
|
|
|
SS_Log::log(sprintf('Cannot update Member ID %s, GUID not set', $member->ID), SS_Log::WARN); |
457
|
|
|
return false; |
458
|
|
|
} |
459
|
|
|
|
460
|
|
|
if (!$data) { |
461
|
|
|
$data = $this->getUserByGUID($member->GUID); |
462
|
|
|
if (!$data) { |
|
|
|
|
463
|
|
|
SS_Log::log(sprintf('Could not retrieve data for user. GUID: %s', $member->GUID), SS_Log::WARN); |
464
|
|
|
return false; |
465
|
|
|
} |
466
|
|
|
} |
467
|
|
|
|
468
|
|
|
$member->IsExpired = ($data['useraccountcontrol'] & 2) == 2; |
469
|
|
|
$member->LastSynced = (string)SS_Datetime::now(); |
470
|
|
|
|
471
|
|
|
foreach ($member->config()->ldap_field_mappings as $attribute => $field) { |
472
|
|
|
if (!isset($data[$attribute])) { |
473
|
|
|
SS_Log::log(sprintf( |
474
|
|
|
'Attribute %s configured in Member.ldap_field_mappings, but no available attribute in AD data (GUID: %s, Member ID: %s)', |
475
|
|
|
$attribute, |
476
|
|
|
$data['objectguid'], |
477
|
|
|
$member->ID |
478
|
|
|
), SS_Log::NOTICE); |
479
|
|
|
|
480
|
|
|
continue; |
481
|
|
|
} |
482
|
|
|
|
483
|
|
|
if ($attribute == 'thumbnailphoto') { |
484
|
|
|
$imageClass = $member->getRelationClass($field); |
485
|
|
|
if ($imageClass !== 'Image' && !is_subclass_of($imageClass, 'Image')) { |
486
|
|
|
SS_Log::log(sprintf( |
487
|
|
|
'Member field %s configured for thumbnailphoto AD attribute, but it isn\'t a valid relation to an Image class', |
488
|
|
|
$field |
489
|
|
|
), SS_Log::WARN); |
490
|
|
|
|
491
|
|
|
continue; |
492
|
|
|
} |
493
|
|
|
|
494
|
|
|
$filename = sprintf('thumbnailphoto-%s.jpg', $data['samaccountname']); |
495
|
|
|
$path = ASSETS_DIR . '/' . $member->config()->ldap_thumbnail_path; |
496
|
|
|
$absPath = BASE_PATH . '/' . $path; |
497
|
|
|
if (!file_exists($absPath)) { |
498
|
|
|
Filesystem::makeFolder($absPath); |
499
|
|
|
} |
500
|
|
|
|
501
|
|
|
// remove existing record if it exists |
502
|
|
|
$existingObj = $member->getComponent($field); |
503
|
|
|
if ($existingObj && $existingObj->exists()) { |
504
|
|
|
$existingObj->delete(); |
505
|
|
|
} |
506
|
|
|
|
507
|
|
|
// The image data is provided in raw binary. |
508
|
|
|
file_put_contents($absPath . '/' . $filename, $data[$attribute]); |
509
|
|
|
$record = new $imageClass(); |
510
|
|
|
$record->Name = $filename; |
511
|
|
|
$record->Filename = $path . '/' . $filename; |
512
|
|
|
$record->write(); |
513
|
|
|
|
514
|
|
|
$relationField = $field . 'ID'; |
515
|
|
|
$member->{$relationField} = $record->ID; |
516
|
|
|
} else { |
517
|
|
|
$member->$field = $data[$attribute]; |
518
|
|
|
} |
519
|
|
|
} |
520
|
|
|
|
521
|
|
|
// if a default group was configured, ensure the user is in that group |
522
|
|
|
if ($this->config()->default_group) { |
523
|
|
|
$group = Group::get()->filter('Code', $this->config()->default_group)->limit(1)->first(); |
524
|
|
|
if (!($group && $group->exists())) { |
525
|
|
|
SS_Log::log( |
526
|
|
|
sprintf( |
527
|
|
|
'LDAPService.default_group misconfiguration! There is no such group with Code = \'%s\'', |
528
|
|
|
$this->config()->default_group |
529
|
|
|
), |
530
|
|
|
SS_Log::WARN |
531
|
|
|
); |
532
|
|
|
} else { |
533
|
|
|
$group->Members()->add($member, [ |
534
|
|
|
'IsImportedFromLDAP' => '1' |
535
|
|
|
]); |
536
|
|
|
} |
537
|
|
|
} |
538
|
|
|
|
539
|
|
|
// this is to keep track of which groups the user gets mapped to |
540
|
|
|
// and we'll use that later to remove them from any groups that they're no longer mapped to |
541
|
|
|
$mappedGroupIDs = []; |
542
|
|
|
|
543
|
|
|
// Member must have an ID before manipulating Groups, otherwise they will not be added correctly. |
544
|
|
|
// However we cannot do a full ->write before the groups are associated, because this will upsync |
545
|
|
|
// the Member, in effect deleting all their LDAP group associations! |
546
|
|
|
$member->writeWithoutSync(); |
547
|
|
|
|
548
|
|
|
// ensure the user is in any mapped groups |
549
|
|
|
if (isset($data['memberof'])) { |
550
|
|
|
$ldapGroups = is_array($data['memberof']) ? $data['memberof'] : [$data['memberof']]; |
551
|
|
|
foreach ($ldapGroups as $groupDN) { |
552
|
|
|
foreach (LDAPGroupMapping::get() as $mapping) { |
553
|
|
|
if (!$mapping->DN) { |
554
|
|
|
SS_Log::log( |
555
|
|
|
sprintf( |
556
|
|
|
'LDAPGroupMapping ID %s is missing DN field. Skipping', |
557
|
|
|
$mapping->ID |
558
|
|
|
), |
559
|
|
|
SS_Log::WARN |
560
|
|
|
); |
561
|
|
|
continue; |
562
|
|
|
} |
563
|
|
|
|
564
|
|
|
// the user is a direct member of group with a mapping, add them to the SS group. |
565
|
|
View Code Duplication |
if ($mapping->DN == $groupDN) { |
|
|
|
|
566
|
|
|
$group = $mapping->Group(); |
567
|
|
|
if ($group && $group->exists()) { |
568
|
|
|
$group->Members()->add($member, [ |
569
|
|
|
'IsImportedFromLDAP' => '1' |
570
|
|
|
]); |
571
|
|
|
$mappedGroupIDs[] = $mapping->GroupID; |
572
|
|
|
} |
573
|
|
|
} |
574
|
|
|
|
575
|
|
|
// the user *might* be a member of a nested group provided the scope of the mapping |
576
|
|
|
// is to include the entire subtree. Check all those mappings and find the LDAP child groups |
577
|
|
|
// to see if they are a member of one of those. If they are, add them to the SS group |
578
|
|
|
if ($mapping->Scope == 'Subtree') { |
579
|
|
|
$childGroups = $this->getNestedGroups($mapping->DN, ['dn']); |
580
|
|
|
if (!$childGroups) { |
|
|
|
|
581
|
|
|
continue; |
582
|
|
|
} |
583
|
|
|
|
584
|
|
|
foreach ($childGroups as $childGroupDN => $childGroupRecord) { |
585
|
|
View Code Duplication |
if ($childGroupDN == $groupDN) { |
|
|
|
|
586
|
|
|
$group = $mapping->Group(); |
587
|
|
|
if ($group && $group->exists()) { |
588
|
|
|
$group->Members()->add($member, [ |
589
|
|
|
'IsImportedFromLDAP' => '1' |
590
|
|
|
]); |
591
|
|
|
$mappedGroupIDs[] = $mapping->GroupID; |
592
|
|
|
} |
593
|
|
|
} |
594
|
|
|
} |
595
|
|
|
} |
596
|
|
|
} |
597
|
|
|
} |
598
|
|
|
} |
599
|
|
|
|
600
|
|
|
// remove the user from any previously mapped groups, where the mapping has since been removed |
601
|
|
|
$groupRecords = DB::query(sprintf('SELECT "GroupID" FROM "Group_Members" WHERE "IsImportedFromLDAP" = 1 AND "MemberID" = %s', $member->ID)); |
602
|
|
|
foreach ($groupRecords as $groupRecord) { |
603
|
|
|
if (!in_array($groupRecord['GroupID'], $mappedGroupIDs)) { |
604
|
|
|
$group = Group::get()->byId($groupRecord['GroupID']); |
605
|
|
|
// Some groups may no longer exist. SilverStripe does not clean up join tables. |
606
|
|
|
if ($group) { |
607
|
|
|
$group->Members()->remove($member); |
608
|
|
|
} |
609
|
|
|
} |
610
|
|
|
} |
611
|
|
|
// This will throw an exception if there are two distinct GUIDs with the same email address. |
612
|
|
|
// We are happy with a raw 500 here at this stage. |
613
|
|
|
$member->write(); |
614
|
|
|
} |
615
|
|
|
|
616
|
|
|
/** |
617
|
|
|
* Sync a specific Group by updating it with LDAP data. |
618
|
|
|
* |
619
|
|
|
* @param Group $group An existing Group or a new Group object |
620
|
|
|
* @param array $data LDAP group object data |
621
|
|
|
* |
622
|
|
|
* @return bool |
623
|
|
|
*/ |
624
|
|
|
public function updateGroupFromLDAP(Group $group, $data) |
625
|
|
|
{ |
626
|
|
|
if (!$this->enabled()) { |
627
|
|
|
return false; |
628
|
|
|
} |
629
|
|
|
|
630
|
|
|
// Synchronise specific guaranteed fields. |
631
|
|
|
$group->Code = $data['samaccountname']; |
632
|
|
|
$group->Title = $data['samaccountname']; |
633
|
|
|
if (!empty($data['description'])) { |
634
|
|
|
$group->Description = $data['description']; |
635
|
|
|
} |
636
|
|
|
$group->DN = $data['dn']; |
637
|
|
|
$group->LastSynced = (string)SS_Datetime::now(); |
638
|
|
|
$group->write(); |
639
|
|
|
|
640
|
|
|
// Mappings on this group are automatically maintained to contain just the group's DN. |
641
|
|
|
// First, scan through existing mappings and remove ones that are not matching (in case the group moved). |
642
|
|
|
$hasCorrectMapping = false; |
643
|
|
|
foreach ($group->LDAPGroupMappings() as $mapping) { |
644
|
|
|
if ($mapping->DN === $data['dn']) { |
645
|
|
|
// This is the correct mapping we want to retain. |
646
|
|
|
$hasCorrectMapping = true; |
647
|
|
|
} else { |
648
|
|
|
$mapping->delete(); |
649
|
|
|
} |
650
|
|
|
} |
651
|
|
|
|
652
|
|
|
// Second, if the main mapping was not found, add it in. |
653
|
|
|
if (!$hasCorrectMapping) { |
654
|
|
|
$mapping = new LDAPGroupMapping(); |
655
|
|
|
$mapping->DN = $data['dn']; |
|
|
|
|
656
|
|
|
$mapping->write(); |
657
|
|
|
$group->LDAPGroupMappings()->add($mapping); |
658
|
|
|
} |
659
|
|
|
} |
660
|
|
|
|
661
|
|
|
/** |
662
|
|
|
* Creates a new LDAP user from the passed Member record. |
663
|
|
|
* Note that the Member record must have a non-empty Username field for this to work. |
664
|
|
|
* |
665
|
|
|
* @param Member $member |
666
|
|
|
*/ |
667
|
|
|
public function createLDAPUser(Member $member) |
668
|
|
|
{ |
669
|
|
|
if (!$this->enabled()) { |
670
|
|
|
return; |
671
|
|
|
} |
672
|
|
|
if (empty($member->Username)) { |
673
|
|
|
throw new ValidationException('Member missing Username. Cannot create LDAP user'); |
674
|
|
|
} |
675
|
|
|
if (!$this->config()->new_users_dn) { |
676
|
|
|
throw new Exception('LDAPService::new_users_dn must be configured to create LDAP users'); |
677
|
|
|
} |
678
|
|
|
|
679
|
|
|
// Normalise username to lowercase to ensure we don't have duplicates of different cases |
680
|
|
|
$member->Username = strtolower($member->Username); |
681
|
|
|
|
682
|
|
|
// Create user in LDAP using available information. |
683
|
|
|
$dn = sprintf('CN=%s,%s', $member->Username, $this->config()->new_users_dn); |
684
|
|
|
|
685
|
|
|
try { |
686
|
|
|
$this->add($dn, [ |
687
|
|
|
'objectclass' => 'user', |
688
|
|
|
'cn' => $member->Username, |
689
|
|
|
'accountexpires' => '9223372036854775807', |
690
|
|
|
'useraccountcontrol' => '66048', |
691
|
|
|
'userprincipalname' => sprintf( |
692
|
|
|
'%s@%s', |
693
|
|
|
$member->Username, |
694
|
|
|
$this->gateway->config()->options['accountDomainName'] |
695
|
|
|
), |
696
|
|
|
]); |
697
|
|
|
} catch (\Exception $e) { |
698
|
|
|
throw new ValidationException('LDAP synchronisation failure: '.$e->getMessage()); |
699
|
|
|
} |
700
|
|
|
|
701
|
|
|
$user = $this->getUserByUsername($member->Username); |
702
|
|
|
if (empty($user['objectguid'])) { |
703
|
|
|
throw new ValidationException('LDAP synchronisation failure: user missing GUID'); |
704
|
|
|
} |
705
|
|
|
|
706
|
|
|
// Creation was successful, mark the user as LDAP managed by setting the GUID. |
707
|
|
|
$member->GUID = $user['objectguid']; |
708
|
|
|
} |
709
|
|
|
|
710
|
|
|
/** |
711
|
|
|
* Creates a new LDAP group from the passed Group record. |
712
|
|
|
* |
713
|
|
|
* @param Group $group |
714
|
|
|
* @throws ValidationException |
715
|
|
|
*/ |
716
|
|
|
public function createLDAPGroup(Group $group) { |
717
|
|
|
if (!$this->enabled()) { |
718
|
|
|
return; |
719
|
|
|
} |
720
|
|
|
if (empty($group->Title)) { |
721
|
|
|
throw new ValidationException('Group missing Title. Cannot create LDAP group'); |
722
|
|
|
} |
723
|
|
|
if (!$this->config()->new_groups_dn) { |
724
|
|
|
throw new Exception('LDAPService::new_groups_dn must be configured to create LDAP groups'); |
725
|
|
|
} |
726
|
|
|
|
727
|
|
|
// LDAP isn't really meant to distinguish between a Title and Code. Squash them. |
728
|
|
|
$group->Code = $group->Title; |
729
|
|
|
|
730
|
|
|
$dn = sprintf('CN=%s,%s', $group->Title, $this->config()->new_groups_dn); |
731
|
|
|
try { |
732
|
|
|
$this->add($dn, [ |
733
|
|
|
'objectclass' => 'group', |
734
|
|
|
'cn' => $group->Title, |
735
|
|
|
'name' => $group->Title, |
736
|
|
|
'samaccountname' => $group->Title, |
737
|
|
|
'description' => $group->Description, |
738
|
|
|
'distinguishedname' => $dn |
739
|
|
|
]); |
740
|
|
|
} catch (\Exception $e) { |
741
|
|
|
throw new \ValidationException('LDAP group creation failure: ' . $e->getMessage()); |
742
|
|
|
} |
743
|
|
|
|
744
|
|
|
$data = $this->getGroupByDN($dn); |
745
|
|
|
if (empty($data['objectguid'])) { |
746
|
|
|
throw new \ValidationException( |
747
|
|
|
new \ValidationResult( |
748
|
|
|
false, |
749
|
|
|
'LDAP group creation failure: group might have been created in LDAP. GUID is missing.' |
750
|
|
|
) |
751
|
|
|
); |
752
|
|
|
} |
753
|
|
|
|
754
|
|
|
// Creation was successful, mark the group as LDAP managed by setting the GUID. |
755
|
|
|
$group->GUID = $data['objectguid']; |
756
|
|
|
$group->DN = $data['dn']; |
757
|
|
|
} |
758
|
|
|
|
759
|
|
|
/** |
760
|
|
|
* Update the Member data back to the corresponding LDAP user object. |
761
|
|
|
* |
762
|
|
|
* @param Member $member |
763
|
|
|
* @throws ValidationException |
764
|
|
|
*/ |
765
|
|
|
public function updateLDAPFromMember(Member $member) |
766
|
|
|
{ |
767
|
|
|
if (!$this->enabled()) { |
768
|
|
|
return; |
769
|
|
|
} |
770
|
|
|
if (!$member->GUID) { |
771
|
|
|
throw new ValidationException('Member missing GUID. Cannot update LDAP user'); |
772
|
|
|
} |
773
|
|
|
|
774
|
|
|
$data = $this->getUserByGUID($member->GUID); |
775
|
|
|
if (empty($data['objectguid'])) { |
776
|
|
|
throw new ValidationException('LDAP synchronisation failure: user missing GUID'); |
777
|
|
|
} |
778
|
|
|
|
779
|
|
|
if (empty($member->Username)) { |
780
|
|
|
throw new ValidationException('Member missing Username. Cannot update LDAP user'); |
781
|
|
|
} |
782
|
|
|
|
783
|
|
|
$dn = $data['distinguishedname']; |
784
|
|
|
|
785
|
|
|
// Normalise username to lowercase to ensure we don't have duplicates of different cases |
786
|
|
|
$member->Username = strtolower($member->Username); |
787
|
|
|
|
788
|
|
|
try { |
789
|
|
|
// If the common name (cn) has changed, we need to ensure they've been moved |
790
|
|
|
// to the new DN, to avoid any clashes between user objects. |
791
|
|
|
if ($data['cn'] != $member->Username) { |
792
|
|
|
$newDn = sprintf('CN=%s,%s', $member->Username, preg_replace('/^CN=(.+?),/', '', $dn)); |
793
|
|
|
$this->move($dn, $newDn); |
794
|
|
|
$dn = $newDn; |
795
|
|
|
} |
796
|
|
|
} catch (\Exception $e) { |
797
|
|
|
throw new ValidationException('LDAP move failure: '.$e->getMessage()); |
798
|
|
|
} |
799
|
|
|
|
800
|
|
|
try { |
801
|
|
|
$attributes = [ |
802
|
|
|
'displayname' => sprintf('%s %s', $member->FirstName, $member->Surname), |
803
|
|
|
'name' => sprintf('%s %s', $member->FirstName, $member->Surname), |
804
|
|
|
'userprincipalname' => sprintf( |
805
|
|
|
'%s@%s', |
806
|
|
|
$member->Username, |
807
|
|
|
$this->gateway->config()->options['accountDomainName'] |
808
|
|
|
), |
809
|
|
|
]; |
810
|
|
|
foreach ($member->config()->ldap_field_mappings as $attribute => $field) { |
811
|
|
|
$relationClass = $member->getRelationClass($field); |
812
|
|
|
if ($relationClass) { |
|
|
|
|
813
|
|
|
// todo no support for writing back relations yet. |
814
|
|
|
} else { |
815
|
|
|
$attributes[$attribute] = $member->$field; |
816
|
|
|
} |
817
|
|
|
} |
818
|
|
|
|
819
|
|
|
$this->update($dn, $attributes); |
820
|
|
|
} catch (\Exception $e) { |
821
|
|
|
throw new ValidationException('LDAP synchronisation failure: '.$e->getMessage()); |
822
|
|
|
} |
823
|
|
|
} |
824
|
|
|
|
825
|
|
|
/** |
826
|
|
|
* Ensure the user belongs to the correct groups in LDAP from their membership |
827
|
|
|
* to local LDAP mapped SilverStripe groups. |
828
|
|
|
* |
829
|
|
|
* This also removes them from LDAP groups if they've been taken out of one. |
830
|
|
|
* It will not affect group membership of non-mapped groups, so it will |
831
|
|
|
* not touch such internal AD groups like "Domain Users". |
832
|
|
|
* |
833
|
|
|
* @param Member $member |
834
|
|
|
*/ |
835
|
|
|
public function updateLDAPGroupsForMember(Member $member) |
836
|
|
|
{ |
837
|
|
|
if (!$this->enabled()) { |
838
|
|
|
return; |
839
|
|
|
} |
840
|
|
|
if (!$member->GUID) { |
841
|
|
|
throw new ValidationException('Member missing GUID. Cannot update LDAP user'); |
842
|
|
|
} |
843
|
|
|
|
844
|
|
|
$addGroups = []; |
845
|
|
|
$removeGroups = []; |
846
|
|
|
|
847
|
|
|
$user = $this->getUserByGUID($member->GUID); |
848
|
|
|
if (empty($user['objectguid'])) { |
849
|
|
|
throw new ValidationException('LDAP update failure: user missing GUID'); |
850
|
|
|
} |
851
|
|
|
|
852
|
|
|
// If a user belongs to a single group, this comes through as a string. |
853
|
|
|
// Normalise to a array so it's consistent. |
854
|
|
|
$existingGroups = !empty($user['memberof']) ? $user['memberof'] : []; |
855
|
|
|
if ($existingGroups && is_string($existingGroups)) { |
856
|
|
|
$existingGroups = [$existingGroups]; |
857
|
|
|
} |
858
|
|
|
|
859
|
|
|
foreach ($member->Groups() as $group) { |
860
|
|
|
if (!$group->GUID) { |
861
|
|
|
continue; |
862
|
|
|
} |
863
|
|
|
|
864
|
|
|
// mark this group as something we need to ensure the user belongs to in LDAP. |
865
|
|
|
$addGroups[] = $group->DN; |
866
|
|
|
} |
867
|
|
|
|
868
|
|
|
// Which existing LDAP groups are not in the add groups? We'll check these groups to |
869
|
|
|
// see if the user should be removed from any of them. |
870
|
|
|
$remainingGroups = array_diff($existingGroups, $addGroups); |
871
|
|
|
|
872
|
|
|
foreach ($remainingGroups as $groupDn) { |
873
|
|
|
// We only want to be removing groups we have a local Group mapped to. Removing |
874
|
|
|
// membership for anything else would be bad! |
875
|
|
|
$group = Group::get()->filter('DN', $groupDn)->first(); |
876
|
|
|
if (!$group || !$group->exists()) { |
877
|
|
|
continue; |
878
|
|
|
} |
879
|
|
|
|
880
|
|
|
// this group should be removed from the user's memberof attribute, as it's been removed. |
881
|
|
|
$removeGroups[] = $groupDn; |
882
|
|
|
} |
883
|
|
|
|
884
|
|
|
// go through the groups we want the user to be in and ensure they're in them. |
885
|
|
|
foreach ($addGroups as $groupDn) { |
886
|
|
|
$this->addLDAPUserToGroup($user['distinguishedname'], $groupDn); |
887
|
|
|
} |
888
|
|
|
|
889
|
|
|
// go through the groups we _don't_ want the user to be in and ensure they're taken out of them. |
890
|
|
|
foreach ($removeGroups as $groupDn) { |
891
|
|
|
$members = $this->getLDAPGroupMembers($groupDn); |
892
|
|
|
|
893
|
|
|
// remove the user from the members data. |
894
|
|
|
if (in_array($user['distinguishedname'], $members)) { |
895
|
|
|
foreach ($members as $i => $dn) { |
896
|
|
|
if ($dn == $user['distinguishedname']) { |
897
|
|
|
unset($members[$i]); |
898
|
|
|
} |
899
|
|
|
} |
900
|
|
|
} |
901
|
|
|
|
902
|
|
|
try { |
903
|
|
|
$this->update($groupDn, ['member' => $members]); |
904
|
|
|
} catch (\Exception $e) { |
905
|
|
|
throw new ValidationException('LDAP group membership remove failure: '.$e->getMessage()); |
906
|
|
|
} |
907
|
|
|
} |
908
|
|
|
} |
909
|
|
|
|
910
|
|
|
/** |
911
|
|
|
* Add LDAP user by DN to LDAP group. |
912
|
|
|
* |
913
|
|
|
* @param string $userDn |
914
|
|
|
* @param string $groupDn |
915
|
|
|
* @throws \Exception |
916
|
|
|
*/ |
917
|
|
|
public function addLDAPUserToGroup($userDn, $groupDn) { |
918
|
|
|
$members = $this->getLDAPGroupMembers($groupDn); |
919
|
|
|
|
920
|
|
|
// this user is already in the group, no need to do anything. |
921
|
|
|
if (in_array($userDn, $members)) { |
922
|
|
|
return; |
923
|
|
|
} |
924
|
|
|
|
925
|
|
|
$members[] = $userDn; |
926
|
|
|
|
927
|
|
|
try { |
928
|
|
|
$this->update($groupDn, ['member' => $members]); |
929
|
|
|
} catch (\Exception $e) { |
930
|
|
|
throw new ValidationException('LDAP group membership add failure: '.$e->getMessage()); |
931
|
|
|
} |
932
|
|
|
} |
933
|
|
|
|
934
|
|
|
/** |
935
|
|
|
* Change a members password on the AD. Works with ActiveDirectory compatible services that saves the |
936
|
|
|
* password in the `unicodePwd` attribute. |
937
|
|
|
* |
938
|
|
|
* @todo Use the Zend\Ldap\Attribute::setPassword functionality to create a password in |
939
|
|
|
* an abstract way, so it works on other LDAP directories, not just Active Directory. |
940
|
|
|
* |
941
|
|
|
* Ensure that the LDAP bind:ed user can change passwords and that the connection is secure. |
942
|
|
|
* |
943
|
|
|
* @param Member $member |
944
|
|
|
* @param string $password |
945
|
|
|
* @param string|null $oldPassword Supply old password to perform a password change (as opposed to password reset) |
946
|
|
|
* @return ValidationResult |
947
|
|
|
* @throws Exception |
948
|
|
|
*/ |
949
|
|
|
public function setPassword(Member $member, $password, $oldPassword = null) |
950
|
|
|
{ |
951
|
|
|
$validationResult = ValidationResult::create(true); |
952
|
|
|
|
953
|
|
|
$this->extend('onBeforeSetPassword', $member, $password, $validationResult); |
954
|
|
|
|
955
|
|
|
if (!$member->GUID) { |
956
|
|
|
SS_Log::log(sprintf('Cannot update Member ID %s, GUID not set', $member->ID), SS_Log::WARN); |
957
|
|
|
$validationResult->error(_t('LDAPAuthenticator.NOUSER', 'Your account hasn\'t been setup properly, please contact an administrator.')); |
958
|
|
|
return $validationResult; |
959
|
|
|
} |
960
|
|
|
|
961
|
|
|
$userData = $this->getUserByGUID($member->GUID); |
962
|
|
|
if (empty($userData['distinguishedname'])) { |
963
|
|
|
$validationResult->error(_t('LDAPAuthenticator.NOUSER', 'Your account hasn\'t been setup properly, please contact an administrator.')); |
964
|
|
|
return $validationResult; |
965
|
|
|
} |
966
|
|
|
|
967
|
|
|
try { |
968
|
|
|
if (!empty($oldPassword)) { |
969
|
|
|
$this->gateway->changePassword($userData['distinguishedname'], $password, $oldPassword); |
970
|
|
|
} else if ($this->config()->password_history_workaround) { |
971
|
|
|
$this->passwordHistoryWorkaround($userData['distinguishedname'], $password); |
972
|
|
|
} else { |
973
|
|
|
$this->gateway->resetPassword($userData['distinguishedname'], $password); |
974
|
|
|
} |
975
|
|
|
$this->extend('onAfterSetPassword', $member, $password, $validationResult); |
976
|
|
|
} catch (Exception $e) { |
977
|
|
|
$validationResult->error($e->getMessage()); |
978
|
|
|
} |
979
|
|
|
|
980
|
|
|
return $validationResult; |
981
|
|
|
} |
982
|
|
|
|
983
|
|
|
/** |
984
|
|
|
* Delete an LDAP user mapped to the Member record |
985
|
|
|
* @param Member $member |
986
|
|
|
*/ |
987
|
|
|
public function deleteLDAPMember(Member $member) { |
988
|
|
|
if (!$this->enabled()) { |
989
|
|
|
return; |
990
|
|
|
} |
991
|
|
|
if (!$member->GUID) { |
992
|
|
|
throw new ValidationException('Member missing GUID. Cannot delete LDAP user'); |
993
|
|
|
} |
994
|
|
|
$data = $this->getUserByGUID($member->GUID); |
995
|
|
|
if (empty($data['distinguishedname'])) { |
996
|
|
|
throw new ValidationException('LDAP delete failure: could not find distinguishedname attribute'); |
997
|
|
|
} |
998
|
|
|
|
999
|
|
|
try { |
1000
|
|
|
$this->delete($data['distinguishedname']); |
1001
|
|
|
} catch (\Exception $e) { |
1002
|
|
|
throw new ValidationException('LDAP delete user failed: '.$e->getMessage()); |
1003
|
|
|
} |
1004
|
|
|
} |
1005
|
|
|
|
1006
|
|
|
/** |
1007
|
|
|
* A simple proxy to LDAP update operation. |
1008
|
|
|
* |
1009
|
|
|
* @param string $dn Location to add the entry at. |
1010
|
|
|
* @param array $attributes A simple associative array of attributes. |
1011
|
|
|
*/ |
1012
|
|
|
public function update($dn, array $attributes) |
1013
|
|
|
{ |
1014
|
|
|
$this->gateway->update($dn, $attributes); |
1015
|
|
|
} |
1016
|
|
|
|
1017
|
|
|
/** |
1018
|
|
|
* A simple proxy to LDAP delete operation. |
1019
|
|
|
* |
1020
|
|
|
* @param string $dn Location of object to delete |
1021
|
|
|
* @param bool $recursively Recursively delete nested objects? |
1022
|
|
|
*/ |
1023
|
|
|
public function delete($dn, $recursively = false) |
1024
|
|
|
{ |
1025
|
|
|
$this->gateway->delete($dn, $recursively); |
1026
|
|
|
} |
1027
|
|
|
|
1028
|
|
|
/** |
1029
|
|
|
* A simple proxy to LDAP copy/delete operation. |
1030
|
|
|
* |
1031
|
|
|
* @param string $fromDn |
1032
|
|
|
* @param string $toDn |
1033
|
|
|
* @param bool $recursively Recursively move nested objects? |
1034
|
|
|
*/ |
1035
|
|
|
public function move($fromDn, $toDn, $recursively = false) |
1036
|
|
|
{ |
1037
|
|
|
$this->gateway->move($fromDn, $toDn, $recursively); |
1038
|
|
|
} |
1039
|
|
|
|
1040
|
|
|
/** |
1041
|
|
|
* A simple proxy to LDAP add operation. |
1042
|
|
|
* |
1043
|
|
|
* @param string $dn Location to add the entry at. |
1044
|
|
|
* @param array $attributes A simple associative array of attributes. |
1045
|
|
|
*/ |
1046
|
|
|
public function add($dn, array $attributes) |
1047
|
|
|
{ |
1048
|
|
|
$this->gateway->add($dn, $attributes); |
1049
|
|
|
} |
1050
|
|
|
|
1051
|
|
|
/** |
1052
|
|
|
* @param string $dn Distinguished name of the user |
1053
|
|
|
* @param string $password New password. |
1054
|
|
|
* @throws Exception |
1055
|
|
|
*/ |
1056
|
|
|
private function passwordHistoryWorkaround($dn, $password) { |
1057
|
|
|
$generator = new RandomGenerator(); |
1058
|
|
|
// 'Aa1' is there to satisfy the complexity criterion. |
1059
|
|
|
$tempPassword = sprintf('Aa1%s', substr($generator->randomToken('sha1'), 0, 21)); |
1060
|
|
|
$this->gateway->resetPassword($dn, $tempPassword); |
1061
|
|
|
$this->gateway->changePassword($dn, $password, $tempPassword); |
1062
|
|
|
} |
1063
|
|
|
|
1064
|
|
|
} |
1065
|
|
|
|
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.