$distinguished_name = null;
      $search_query = null;
      foreach ($this->searchAttributes as $attribute) {
        $search_query = $this->formatLDAPAttributeSearch(
          $attribute,
          $login_user);
        $record = $this->searchLDAPForRecord($search_query);
        if ($record) {
		 ** /*there should be return $record;*/**
          $distinguished_name = $this->readLDAPData($record, 'dn');
          break;
        }
      }
      if ($distinguished_name === null) {
        throw new PhutilAuthCredentialException();
      }
    } else {
      $search_query = $this->formatLDAPAttributeSearch(
        head($this->searchAttributes),
        $login_user);
      if ($this->activeDirectoryDomain) {
        $distinguished_name = ldap_sprintf(
          '%s@%Q',
          $login_user,
          $this->activeDirectoryDomain);
      } else {
        $distinguished_name = ldap_sprintf(
          '%Q,%Q',
          $search_query,
          $this->baseDistinguishedName);
      }
    }
    $this->bindLDAP($conn, $distinguished_name, $login_pass);
    $result = $this->searchLDAPForRecord($search_query);  ** /*why search again*/**