fixes possible override of uniqueMember by autodetection

* uniqueMember was the default so we did not know whether this setting is
  desired or the initial value
* autodetection of the user-group association attribute runs only when it
  was not set (as far as we knew)
* the default is now empty
* thus LDAPProvider might return this value as well (in exceptional cases)
* if a group base is given (edge case), use this instead of general base
* resolves #12682

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

3 files changed, 5 insertions, 5 deletions

diff --git a/apps/user_ldap/lib/Configuration.php b/apps/user_ldap/lib/Configuration.php
index ee77702a090..a6da6d6518f 100644
--- a/apps/user_ldap/lib/Configuration.php
+++ b/apps/user_ldap/lib/Configuration.php
@@ -456,7 +456,7 @@ class Configuration {
 			'ldap_quota_def'                    => '',
 			'ldap_quota_attr'                   => '',
 			'ldap_email_attr'                   => '',
-			'ldap_group_member_assoc_attribute' => 'uniqueMember',
+			'ldap_group_member_assoc_attribute' => '',
 			'ldap_cache_ttl'                    => 600,
 			'ldap_uuid_user_attribute'          => 'auto',
 			'ldap_uuid_group_attribute'         => 'auto',
diff --git a/apps/user_ldap/lib/LDAPProvider.php b/apps/user_ldap/lib/LDAPProvider.php
index 94793980b39..4121bdd9d2e 100644
--- a/apps/user_ldap/lib/LDAPProvider.php
+++ b/apps/user_ldap/lib/LDAPProvider.php
@@ -279,7 +279,7 @@ class LDAPProvider implements ILDAPProvider, IDeletionFlagSupport {
 	/**
 	 * Get the LDAP type of association between users and groups
 	 * @param string $gid group id
-	 * @return string the configuration, one of: 'memberUid', 'uniqueMember', 'member', 'gidNumber'
+	 * @return string the configuration, one of: 'memberUid', 'uniqueMember', 'member', 'gidNumber', ''
 	 * @throws \Exception if group id was not found in LDAP
 	 */
 	public function getLDAPGroupMemberAssoc($gid) {
diff --git a/apps/user_ldap/lib/Wizard.php b/apps/user_ldap/lib/Wizard.php
index 26b5a8cab71..0ffb74a36a3 100644
--- a/apps/user_ldap/lib/Wizard.php
+++ b/apps/user_ldap/lib/Wizard.php
@@ -794,7 +794,7 @@ class Wizard extends LDAPUtility {
 	 * @throws \Exception
 	 */
 	private function detectGroupMemberAssoc() {
-		$possibleAttrs = array('uniqueMember', 'memberUid', 'member', 'gidNumber');
+		$possibleAttrs = ['uniqueMember', 'memberUid', 'member', 'gidNumber'];
 		$filter = $this->configuration->ldapGroupFilter;
 		if(empty($filter)) {
 			return false;
@@ -803,7 +803,7 @@ class Wizard extends LDAPUtility {
 		if(!$cr) {
 			throw new \Exception('Could not connect to LDAP');
 		}
-		$base = $this->configuration->ldapBase[0];
+		$base = $this->configuration->ldapBaseGroups[0] ?: $this->configuration->ldapBase[0];
 		$rr = $this->ldap->search($cr, $base, $filter, $possibleAttrs, 0, 1000);
 		if(!$this->ldap->isResource($rr)) {
 			return false;
@@ -812,7 +812,7 @@ class Wizard extends LDAPUtility {
 		while(is_resource($er)) {
 			$this->ldap->getDN($cr, $er);
 			$attrs = $this->ldap->getAttributes($cr, $er);
-			$result = array();
+			$result = [];
 			$possibleAttrsCount = count($possibleAttrs);
 			for($i = 0; $i < $possibleAttrsCount; $i++) {
 				if(isset($attrs[$possibleAttrs[$i]])) {