thetool/Layout/default/topbar.php

<!-- Topbar Start -->
<div class="navbar-custom">
  <div class="container-fluid">
    <ul class="list-unstyled topnav-menu float-right mb-0" id="topbar">

      <li class="dropdown notification-list">
        <!-- Mobile menu toggle-->
        <a class="navbar-toggle nav-link">
          <div class="lines">
            <span></span>
            <span></span>
            <span></span>
          </div>
        </a>
        <!-- End mobile menu toggle-->
      </li>

        <li id="vodia-identity-container" class="dropdown notification-list hidden" >
            <a href="#" id="vodia-identity-switcher" class="nav-link nav-user dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
                <i class="phone-icon fas fa-phone text-success"></i>
                <span class="pro-user-name ml-1">
                    Ausgehende Identität: <strong id="vodia-identity-current-text"></strong>
                    <strong id="vodia-identity-current-number"></strong>
                    <i class="far fa-chevron-down"></i>
                </span>
            </a>
            <div id="vodia-identity-switcher-dropdown-menu" class="dropdown-menu dropdown-menu-right">
                <div class="dropdown-item noti-title">
                    <h6 class="m-0">
                        Ausgehende Telefonidentität umschalten:
                    </h6>
                </div>
                <ul class="list-group" id="vodia-identities-list" style="min-width: 512px;">

                </ul>

            </div>

        </li>

        <template id="vodia-identity-list-item-template">
            <li class="list-group-item pointer">
                <table class="table table-borderless mb-0">
                    <tr>
                        <td class="color-block"><i class="fas fa-phone"></i></td>
                        <td class="text-block" style="vertical-align: middle">
                            <span class="name"></span>
                            <span class="number"></span>
                        </td>
                    </tr>
                </table>
            </li>
        </template>

        <li id="bookstackLink" class="dropdown notification-list" style="display: none">
            <a class="nav-link dropdown-toggle" href="" target="_blank">
                <i class="fas fa-book"></i>
                <span class="d-none d-sm-inline-block">Hilfe zu dieser Seite</span>
            </a>
        </li>
      
      <li class="dropdown notification-list">
        <a class="nav-link dropdown-toggle" data-toggle="adropdown" href="#" role="button" aria-haspopup="false" aria-expanded="false">
          <i class="fe-bell noti-icon"></i>
          <!--<span class="badge badge-danger rounded-circle noti-icon-badge">2</span>-->
        </a>
      </li>

      <li>
        <a class="nav-link nav-user mr-0" href="<?=self::getUrl("UserProfile")?>">
          <!-- <img src="<?=self::getResourcePath()?>assets/images/users/avatar-4.jpg" alt="user-image" class="rounded-circle"> -->
<!--          <i style="font-size: 24px; border-radius: 50%;" class="fas fa-user-secret text-white img-circle bg-info"></i>-->
            <?php if(!$me->twofactor): ?>
              <i class="fas fa-exclamation-triangle text-warning" title="Zwei-Faktor-Authentifizierung (2FA) nicht aktiviert!"></i>
            <?php else: ?>
              <i class="fa-sharp fa-light fa-gear text-white img-circle font-15 "></i>
            <?php endif; ?>
            
          <span class="pro-user-name ml-1">
              <?=$me->username?>
          </span>
        </a>
      </li>

<!--        if $_SESSION[MFAPPNAME.'_impersonate'] is set then show a button that redirects to "User" "impersonate" "unimpersonate = true"-->
        <?php if(isset($_SESSION[MFAPPNAME.'_impersonate'])): ?>
          <li>
            <a href="<?=self::getUrl("User","impersonate",["unimpersonate"=>true])?>" class="nav-link nav-user">
              <i class="fas fa-user-secret text-white img-circle bg-info"></i>
              <span class="pro-user-name ml-1">Zurück als <?=$_SESSION[MFAPPNAME.'_username']?></span>
            </a>
          </li>
        <?php else: ?>
        <li>
            <a href="<?=self::getUrl("Dashboard","logout")?>" class="nav-link nav-user">
                <i class="fas fa-sign-out-alt"></i>
                <span class="pro-user-name ml-1">Abmelden</span>
            </a>
        </li>
        <?php endif; ?>


    </ul>

    <ul class="list-unstyled topnav-menu-left m-0">

      <li class="logo-box float-left">
        <a href="<?=self::getUrl("Dashboard")?>" class="logo">
          <span class="logo-lg">
            <img src="<?=self::getResourcePath()?>assets/images/<?=MFAPPNAME_SLUG?>-logo-top.png" alt="" style="height:80px; padding-top:12px; padding-left:32px;">
          </span>
          <span class="logo-sm">
            <img src="<?=self::getResourcePath()?>assets/images/<?=MFAPPNAME_SLUG?>-logo-top.png" alt="" height="28">
          </span>
        </a>
      </li>
    </ul>


  </div> <!-- end container-fluid-->
</div>
<!-- end Topbar -->