/**
  * @brief Check if the password is correct
  * @param $uid The username
  * @param $password The password
  * @returns true/false
  *
  * Check if the password is correct without logging in the user
  */
 public function checkPassword($uid, $password)
 {
     //find out dn of the user name
     $filter = str_replace('%uid', $uid, OC_LDAP::conf('ldapLoginFilter'));
     $ldap_users = OC_LDAP::fetchListOfUsers($filter, 'dn');
     if (count($ldap_users) < 1) {
         return false;
     }
     $dn = $ldap_users[0];
     //are the credentials OK?
     if (!OC_LDAP::areCredentialsValid($dn, $password)) {
         return false;
     }
     //update some settings, if necessary
     $this->updateQuota($dn);
     $this->updateEmail($dn);
     //give back the display name
     return OC_LDAP::dn2username($dn);
 }
 /**
  * @brief get a list of all users in a group
  * @returns array with user ids
  */
 public function usersInGroup($gid)
 {
     if (!$this->configured) {
         return array();
     }
     if (isset($this->_group_users[$gid])) {
         return $this->_group_users[$gid];
     }
     $groupDN = OC_LDAP::groupname2dn($gid);
     if (!$groupDN) {
         $this->_group_users[$gid] = array();
         return array();
     }
     $members = OC_LDAP::readAttribute($groupDN, $this->ldapGroupMemberAssocAttr);
     if (!$members) {
         $this->_group_users[$gid] = array();
         return array();
     }
     $result = array();
     $isMemberUid = strtolower($this->ldapGroupMemberAssocAttr) == 'memberuid';
     foreach ($members as $member) {
         if ($isMemberUid) {
             $filter = str_replace('%uid', $member, OC_LDAP::conf('ldapLoginFilter'));
             $ldap_users = OC_LDAP::fetchListOfUsers($filter, 'dn');
             if (count($ldap_users) < 1) {
                 continue;
             }
             $result[] = OC_LDAP::dn2username($ldap_users[0]);
             continue;
         } else {
             $result[] = OC_LDAP::dn2username($member);
         }
     }
     if (!$isMemberUid) {
         $result = array_intersect($result, OCP\User::getUsers());
     }
     $this->_group_users[$gid] = array_unique($result, SORT_LOCALE_STRING);
     return $this->_group_users[$gid];
 }