Multiple TFA keys

data/web/admin.php

@@ -4,6 +4,7 @@ require_once("inc/prerequisites.inc.php");
 if (isset($_SESSION['mailcow_cc_role']) && $_SESSION['mailcow_cc_role'] == "admin") {
 require_once("inc/header.inc.php");
 $_SESSION['return_to'] = $_SERVER['REQUEST_URI'];
+$tfa_data = get_tfa();
 ?>
 <div class="container">
   <h4><span class="glyphicon glyphicon-user" aria-hidden="true"></span> <?=$lang['admin']['access'];?></h4>
@@ -43,12 +44,23 @@ $_SESSION['return_to'] = $_SERVER['REQUEST_URI'];
         <div class="row">
           <div class="col-sm-3 col-xs-5 text-right"><?=$lang['tfa']['tfa'];?>:</div>
           <div class="col-sm-9 col-xs-7">
-            <p><?=get_tfa()['pretty'];?></p>
+            <p id="tfa_pretty"><?=$tfa_data['pretty'];?></p>
+              <div id="tfa_additional">
+                <?php if($tfa_data['additional']):
+                foreach ($tfa_data['additional'] as $key_info): ?>
+                <form method="post">
+                  <input type="hidden" name="unset_tfa_key" value="<?=$key_info['id'];?>" />
+                  <div class="label label-default">🔑 <?=$key_info['key_id'];?> <a href="#" style="font-weight:bold;color:white" onClick="$(this).closest('form').submit()">[<?=strtolower($lang['admin']['remove']);?>]</a></div>
+                </form>
+                <?php endforeach;
+                endif;?>
+              </div>
+              <br />
           </div>
         </div>
         <div class="row">
-          <div class="col-md-3 col-xs-5 text-right"><?=$lang['tfa']['set_tfa'];?>:</div>
-          <div class="col-md-9 col-xs-7">
+          <div class="col-sm-3 col-xs-5 text-right"><?=$lang['tfa']['set_tfa'];?>:</div>
+          <div class="col-sm-9 col-xs-7">
             <select data-width="auto" id="selectTFA" class="selectpicker" title="<?=$lang['tfa']['select'];?>">
               <option value="yubi_otp"><?=$lang['tfa']['yubi_otp'];?></option>
               <option value="u2f"><?=$lang['tfa']['u2f'];?></option>

data/web/edit.php

@@ -114,7 +114,7 @@ if (isset($_SESSION['mailcow_cc_role']) && ($_SESSION['mailcow_cc_role'] == "adm
 					<div class="form-group">
 						<div class="col-sm-offset-2 col-sm-10">
 							<div class="checkbox">
-							<label><input type="checkbox" name="delete_tfa"> <?=$lang['tfa']['delete_tfa'];?></label>
+							<label><input type="checkbox" name="disable_tfa"> <?=$lang['tfa']['disable_tfa'];?></label>
 							</div>
 						</div>
 					</div>

data/web/inc/footer.inc.php

@@ -74,6 +74,7 @@ $(document).ready(function() {
   <?php endif; ?>
 
   // Set TFA modals
+
   $('#selectTFA').change(function () {
     if ($(this).val() == "yubi_otp") {
       $('#YubiOTPModal').modal('show');

data/web/inc/functions.inc.php

@@ -63,6 +63,7 @@ function hasMailboxObjectAccess($username, $role, $object) {
 	return false;
 }
 function init_db_schema() {
+  // This will be much better in future releases...
 	global $pdo;
 	try {
 		$stmt = $pdo->prepare("SELECT NULL FROM `admin`, `imapsync`, `tfa`");
@@ -101,7 +102,7 @@ function init_db_schema() {
   $stmt = $pdo->query("SHOW COLUMNS FROM `mailbox` LIKE 'kind'");
   $num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
   if ($num_results == 0) {
-    $pdo->query("ALTER TABLE `mailbox` ADD `kind` varchar(100) NOT NULL DEFAULT ''");
+    $pdo->query("ALTER TABLE `mailbox` ADD `kind` VARCHAR(100) NOT NULL DEFAULT ''");
   }
   $stmt = $pdo->query("SHOW COLUMNS FROM `mailbox` LIKE 'multiple_bookings'");
   $num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
@@ -113,6 +114,11 @@ function init_db_schema() {
   if ($num_results == 0) {
     $pdo->query("ALTER TABLE `mailbox` ADD `wants_tagged_subject` tinyint(1) NOT NULL DEFAULT '0'");
   }
+  $stmt = $pdo->query("SHOW COLUMNS FROM `tfa` LIKE 'key_id'");
+  $num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
+  if ($num_results == 0) {
+    $pdo->query("ALTER TABLE `tfa` ADD `key_id` VARCHAR(255) DEFAULT 'unidentified'");
+  }
 }
 function verify_ssha256($hash, $password) {
 	// Remove tag if any
@@ -198,6 +204,8 @@ function check_login($user, $pass) {
       }
       else {
         unset($_SESSION['ldelay']);
+        $stmt = $pdo->prepare("UPDATE `tfa` SET `active`='1' WHERE `username` = :user");
+        $stmt->execute(array(':user' => $user));
         return "domainadmin";
       }
 		}
@@ -1806,6 +1814,10 @@ function set_tfa($postarray) {
   
 	switch ($postarray["tfa_method"]) {
 		case "yubi_otp":
+      (!isset($postarray["key_id"])) ? $key_id = 'unidentified' : $key_id = $postarray["key_id"];
+      $yubico_id = $postarray['yubico_id'];
+      $yubico_key = $postarray['yubico_key'];
+      $yubi = new Auth_Yubico($yubico_id, $yubico_key);
       if (!$yubi) {
         $_SESSION['return'] = array(
           'type' => 'danger',
@@ -1824,16 +1836,21 @@ function set_tfa($postarray) {
       if (PEAR::isError($yauth)) {
 				$_SESSION['return'] = array(
 					'type' => 'danger',
-					'msg' => 'Yubico Authentication error: ' . $yauth->getMessage()
+					'msg' => 'Yubico API: ' . $yauth->getMessage()
 				);
 				return false;
       }
 			try {
-				$stmt = $pdo->prepare("DELETE FROM `tfa` WHERE `authmech` = 'yubi_otp' AND `username` = :username");
-				$stmt->execute(array(':username' => $username));
-				$stmt = $pdo->prepare("INSERT INTO `tfa` (`username`, `authmech`, `active`) VALUES
-					(:username, 'yubi_otp', 1)");
-				$stmt->execute(array(':username' => $username));
+        // We could also do a modhex translation here
+        $yubico_modhex_id = substr($postarray["otp_token"], 0, 12);
+        $stmt = $pdo->prepare("DELETE FROM `tfa` 
+          WHERE `username` = :username
+            AND (`authmech` != 'yubi_otp')
+            OR (`authmech` = 'yubi_otp' AND `secret` LIKE :modhex)");
+				$stmt->execute(array(':username' => $username, ':modhex' => '%' . $yubico_modhex_id));
+				$stmt = $pdo->prepare("INSERT INTO `tfa` (`key_id`, `username`, `authmech`, `active`, `secret`) VALUES
+					(:key_id, :username, 'yubi_otp', '1', :secret)");
+				$stmt->execute(array(':key_id' => $key_id, ':username' => $username, ':secret' => $yubico_id . ':' . $yubico_key . ':' . $yubico_modhex_id));
 			}
 			catch (PDOException $e) {
 				$_SESSION['return'] = array(
@@ -1850,9 +1867,12 @@ function set_tfa($postarray) {
 
 		case "u2f":
       try {
+        (!isset($postarray["key_id"])) ? $key_id = 'unidentified' : $key_id = $postarray["key_id"];
         $reg = $u2f->doRegister(json_decode($_SESSION['regReq']), json_decode($postarray['token']));
-        $stmt = $pdo->prepare("INSERT INTO `tfa` (`username`, `authmech`, `keyHandle`, `publicKey`, `certificate`, `counter`) VALUES (?, 'u2f', ?, ?, ?, ?)");
-        $stmt->execute(array($username, $reg->keyHandle, $reg->publicKey, $reg->certificate, $reg->counter));
+        $stmt = $pdo->prepare("DELETE FROM `tfa` WHERE `username` = :username AND `authmech` != 'u2f'");
+				$stmt->execute(array(':username' => $username));
+        $stmt = $pdo->prepare("INSERT INTO `tfa` (`username`, `key_id`, `authmech`, `keyHandle`, `publicKey`, `certificate`, `counter`, `active`) VALUES (?, ?, 'u2f', ?, ?, ?, ?, '1')");
+        $stmt->execute(array($username, $key_id, $reg->keyHandle, $reg->publicKey, $reg->certificate, $reg->counter));
         $_SESSION['return'] = array(
           'type' => 'success',
           'msg' => sprintf($lang['success']['object_modified'], $username)
@@ -1887,6 +1907,55 @@ function set_tfa($postarray) {
 		break;
 	}
 }
+function unset_tfa_key($postarray) {
+  // Can only unset own keys
+  // Needs at least one key left
+  global $pdo;
+  global $lang;
+  $id = intval($postarray['id']);
+  if ($_SESSION['mailcow_cc_role'] != "domainadmin" &&
+    $_SESSION['mailcow_cc_role'] != "admin") {
+      $_SESSION['return'] = array(
+        'type' => 'danger',
+        'msg' => sprintf($lang['danger']['access_denied'])
+      );
+      return false;
+  }
+  $username = $_SESSION['mailcow_cc_username'];
+  try {
+    if (!is_numeric($id)) {
+      $_SESSION['return'] = array(
+        'type' => 'danger',
+        'msg' => sprintf($lang['danger']['access_denied'])
+      );
+      return false;
+    }
+    $stmt = $pdo->prepare("SELECT COUNT(*) AS `keys` FROM `tfa`
+      WHERE `username` = :username AND `active` = '1'");
+    $stmt->execute(array(':username' => $username));
+    $row = $stmt->fetch(PDO::FETCH_ASSOC);
+    if ($row['keys'] == "1") {
+      $_SESSION['return'] = array(
+        'type' => 'danger',
+        'msg' => sprintf($lang['danger']['last_key'])
+      );
+      return false;
+    }
+    $stmt = $pdo->prepare("DELETE FROM `tfa` WHERE `username` = :username AND `id` = :id");
+    $stmt->execute(array(':username' => $username, ':id' => $id));
+    $_SESSION['return'] = array(
+      'type' => 'success',
+      'msg' => sprintf($lang['success']['object_modified'], $username)
+    );
+  }
+  catch (PDOException $e) {
+    $_SESSION['return'] = array(
+      'type' => 'danger',
+      'msg' => 'MySQL: '.$e
+    );
+    return false;
+  }
+}
 function get_tfa($username = null) {
 	global $pdo;
   if (isset($_SESSION['mailcow_cc_username'])) {
@@ -1896,8 +1965,8 @@ function get_tfa($username = null) {
     return false;
   }
 
-  $stmt = $pdo->prepare("SELECT `authmech` FROM `tfa`
-      WHERE `username` = :username");
+  $stmt = $pdo->prepare("SELECT * FROM `tfa`
+      WHERE `username` = :username AND `active` = '1'");
   $stmt->execute(array(':username' => $username));
   $row = $stmt->fetch(PDO::FETCH_ASSOC);
   
@@ -1905,11 +1974,27 @@ function get_tfa($username = null) {
 		case "yubi_otp":
       $data['name'] = "yubi_otp";
       $data['pretty'] = "Yubico OTP";
+      $stmt = $pdo->prepare("SELECT `id`, `key_id`, RIGHT(`secret`, 12) AS 'modhex' FROM `tfa` WHERE `authmech` = 'yubi_otp' AND `username` = :username");
+      $stmt->execute(array(
+        ':username' => $username,
+      ));
+      $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
+      while($row = array_shift($rows)) {
+        $data['additional'][] = $row;
+      }
       return $data;
     break;
 		case "u2f":
       $data['name'] = "u2f";
       $data['pretty'] = "Fido U2F";
+      $stmt = $pdo->prepare("SELECT `id`, `key_id` FROM `tfa` WHERE `authmech` = 'u2f' AND `username` = :username");
+      $stmt->execute(array(
+        ':username' => $username,
+      ));
+      $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
+      while($row = array_shift($rows)) {
+        $data['additional'][] = $row;
+      }
       return $data;
     break;
 		case "hotp":
@@ -1935,7 +2020,7 @@ function verify_tfa_login($username, $token) {
 	global $yubi;
 
   $stmt = $pdo->prepare("SELECT `authmech` FROM `tfa`
-      WHERE `username` = :username");
+      WHERE `username` = :username AND `active` = '1'");
   $stmt->execute(array(':username' => $username));
   $row = $stmt->fetch(PDO::FETCH_ASSOC);
   
@@ -1944,6 +2029,16 @@ function verify_tfa_login($username, $token) {
 			if (!ctype_alnum($token) || strlen($token) != 44) {
         return false;
       }
+      $yubico_modhex_id = substr($token, 0, 12);
+      $stmt = $pdo->prepare("SELECT `secret` FROM `tfa`
+          WHERE `username` = :username
+          AND `authmech` = 'yubi_otp'
+          AND `active`='1'
+          AND `secret` LIKE :modhex");
+      $stmt->execute(array(':username' => $username, ':modhex' => '%' . $yubico_modhex_id));
+      $row = $stmt->fetch(PDO::FETCH_ASSOC);
+      $yubico_auth = explode(':', $row['secret']);
+      $yubi = new Auth_Yubico($yubico_auth[0], $yubico_auth[1]);
       $yauth = $yubi->verify($token);
       if (PEAR::isError($yauth)) {
 				$_SESSION['return'] = array(
@@ -2089,8 +2184,8 @@ function edit_domain_admin($postarray) {
           ':modified' => date('Y-m-d H:i:s'),
           ':active' => $active
         ));
-        if (isset($postarray['delete_tfa'])) {
-          $stmt = $pdo->prepare("DELETE FROM `tfa` WHERE `username` = :username");
+        if (isset($postarray['disable_tfa'])) {
+          $stmt = $pdo->prepare("UPDATE `tfa` SET `active` = '0' WHERE `username` = :username");
           $stmt->execute(array(':username' => $username_now));
         }
         else {
@@ -2115,8 +2210,8 @@ function edit_domain_admin($postarray) {
           ':modified' => date('Y-m-d H:i:s'),
           ':active' => $active
         ));
-        if (isset($postarray['delete_tfa'])) {
-          $stmt = $pdo->prepare("DELETE FROM `tfa` WHERE `username` = :username");
+        if (isset($postarray['disable_tfa'])) {
+          $stmt = $pdo->prepare("UPDATE `tfa` SET `active` = '0' WHERE `username` = :username");
           $stmt->execute(array(':username' => $username));
         }
         else {
@@ -4818,23 +4913,8 @@ function mailbox_get_sender_acl_handles($mailbox) {
 }
 function get_u2f_registrations($username) {
   global $pdo;
-  $sel = $pdo->prepare("SELECT * FROM `tfa` WHERE `username` = ?");
+  $sel = $pdo->prepare("SELECT * FROM `tfa` WHERE `authmech` = 'u2f' AND `username` = ? AND `active` = '1'");
   $sel->execute(array($username));
   return $sel->fetchAll(PDO::FETCH_OBJ);
 }
-function add_u2f_registration($username, $reg) {
-  global $pdo;
-  global $lang;
-  $ins = $pdo->prepare("INSERT INTO `tfa` (`username`, `authmech`, `keyHandle`, `publicKey`, `certificate`, `counter`) VALUES (?, 'u2f', ?, ?, ?, ?)");
-  $ins->execute(array($username, $reg->keyHandle, $reg->publicKey, $reg->certificate, $reg->counter));
-	$_SESSION['return'] = array(
-		'type' => 'success',
-		'msg' => sprintf($lang['success']['object_modified'], $username)
-	);
-}
-function edit_u2f_registration($reg) {
-  global $pdo;
-  $upd = $pdo->prepare("update tfa set counter = ? where id = ?");
-  $upd->execute(array($reg->counter, $reg->id));
-}
 ?>

data/web/inc/prerequisites.inc.php

@@ -22,10 +22,8 @@ if (file_exists('./inc/vars.local.inc.php')) {
 }
 
 // Yubi OTP API
-if (!empty($YUBI_API['ID']) && !empty($YUBI_API['KEY'])) {
-  require_once 'inc/lib/Yubico.php';
-  $yubi = new Auth_Yubico($YUBI_API['ID'], $YUBI_API['KEY']);
-}
+require_once 'inc/lib/Yubico.php';
+
 // U2F API
 require_once 'inc/lib/U2F.php';
 $scheme = isset($_SERVER['HTTPS']) ? "https://" : "http://";

data/web/inc/tfa_modals.php

@@ -4,6 +4,18 @@
       <div class="modal-header"><b><?=$lang['tfa']['yubi_otp'];?></b></div>
       <div class="modal-body">
       <form role="form" method="post">
+        <div class="form-group">
+          <input type="text" class="form-control" name="key_id" id="key_id" placeholder="<?=$lang['tfa']['key_id'];?>" autocomplete="off" required>
+        </div>
+        <hr>
+        <p class="help-block"><?=$lang['tfa']['api_register'];?></p>
+        <div class="form-group">
+          <input type="text" class="form-control" name="yubico_id" id="yubico_id" placeholder="Yubico API ID" autocomplete="off" required>
+        </div>
+        <div class="form-group">
+          <input type="text" class="form-control" name="yubico_key" id="yubico_key" placeholder="Yubico API Key" autocomplete="off" required>
+        </div>
+        <hr>
         <div class="form-group">
           <input type="password" class="form-control" name="confirm_password" id="confirm_password" placeholder="<?=$lang['user']['password_now'];?>" autocomplete="off" required>
         </div>
@@ -27,6 +39,9 @@
       <div class="modal-header"><b><?=$lang['tfa']['u2f'];?></b></div>
       <div class="modal-body">
         <form role="form" method="post" id="u2f_reg_form">
+          <div class="form-group">
+            <input type="text" class="form-control" name="key_id" id="key_id" placeholder="<?=$lang['tfa']['key_id'];?>" autocomplete="off" required>
+          </div>
           <div class="form-group">
             <input type="password" class="form-control" name="confirm_password" id="confirm_password" placeholder="<?=$lang['user']['password_now'];?>" autocomplete="off" required>
           </div>

data/web/inc/triggers.inc.php

@@ -115,6 +115,9 @@ if (isset($_SESSION['mailcow_cc_role']) && ($_SESSION['mailcow_cc_role'] == "adm
 	if (isset($_POST["set_tfa"])) {
 		set_tfa($_POST);
 	}
+	if (isset($_POST["unset_tfa_key"])) {
+		unset_tfa_key($_POST);
+	}
 	if (isset($_POST["add_policy_list_item"])) {
 		add_policy_list_item($_POST);
 	}

data/web/inc/vars.inc.php

@@ -35,8 +35,4 @@ $DEFAULT_LANG = "en";
 // See https://bootswatch.com/
 $DEFAULT_THEME = "lumen";
 
-// If you want to use Yubico TFA methods, setup an ID and a key here: https://upgrade.yubico.com/getapikey/
-// Remember to override this value using vars.local.inc.php, do not change it here.
-$YUBI_API['ID'] = "";
-$YUBI_API['KEY'] = "";
 ?>

data/web/lang/lang.de.php

@@ -29,6 +29,7 @@ $lang['danger']['policy_list_from_exists'] = 'Ein Eintrag mit diesem Wert existi
 $lang['danger']['policy_list_from_invalid'] = 'Eintrag hat ungültiges Format';
 $lang['danger']['alias_invalid'] = 'Alias-Adrese ist ungültig';
 $lang['danger']['goto_invalid'] = 'Ziel-Adrese ist ungültig';
+$lang['danger']['last_key'] = 'Letzter Key kann nicht gelöscht werden';
 $lang['danger']['alias_domain_invalid'] = 'Alias-Domain ist ungültig';
 $lang['danger']['target_domain_invalid'] = 'Ziel-Domain ist ungültig';
 $lang['danger']['object_exists'] = 'Objekt %s existiert bereits';
@@ -374,11 +375,14 @@ $lang['login']['delayed'] = 'Login wurde zur Sicherheit um %s Sekunde/n verzöge
 $lang['tfa']['tfa'] = "Two-Factor Authentication";
 $lang['tfa']['set_tfa'] = "Konfiguriere Two-Factor Authentication Methode";
 $lang['tfa']['yubi_otp'] = "Yubico OTP Authentifizierung";
+$lang['tfa']['key_id'] = "Ein Name für diesen YubiKey";
+$lang['tfa']['api_register'] = 'mailcow verwendet die Yubico Cloud API. Ein API-Key für den Yubico Stick kann <a href="https://upgrade.yubico.com/getapikey/" target="_blank">hier</a> bezogen werden.';
 $lang['tfa']['u2f'] = "U2F Authentifizierung";
 $lang['tfa']['hotp'] = "HOTP Authentifizierung";
 $lang['tfa']['totp'] = "TOTP Authentifizierung";
 $lang['tfa']['none'] = "Deaktiviert";
 $lang['tfa']['delete_tfa'] = "Deaktiviere TFA";
+$lang['tfa']['disable_tfa'] = "Deaktiviere TFA bis zur nächsten erfolgreichen Anmeldung";
 $lang['tfa']['confirm_tfa'] = "Please confirm your one-time password in the below field";
 $lang['tfa']['confirm'] = "Bestätigen";
 $lang['tfa']['otp'] = "Einmalpasswort";

data/web/lang/lang.en.php

@@ -24,6 +24,7 @@ $lang['danger']['mailbox_quota_exceeds_domain_quota'] = "Max. quota exceeds doma
 $lang['danger']['object_is_not_numeric'] = "Value %s is not numeric";
 $lang['success']['domain_added'] = "Added domain %s";
 $lang['danger']['alias_empty'] = "Alias address must not be empty";
+$lang['danger']['last_key'] = 'Last key cannot be deleted';
 $lang['danger']['goto_empty'] = "Goto address must not be empty";
 $lang['danger']['policy_list_from_exists'] = "A record with given name exists";
 $lang['danger']['policy_list_from_invalid'] = "Record has invalid format";
@@ -377,11 +378,14 @@ $lang['login']['delayed'] = 'Login was delayed by %s seconds.';
 $lang['tfa']['tfa'] = "Two-factor authentication";
 $lang['tfa']['set_tfa'] = "Set two-factor authentication method";
 $lang['tfa']['yubi_otp'] = "Yubico OTP authentication";
+$lang['tfa']['key_id'] = "An identifier for your YubiKey";
+$lang['tfa']['api_register'] = 'mailcow uses the Yubico Cloud API. Please get an API key for your key <a href="https://upgrade.yubico.com/getapikey/" target="_blank">here</a>';
 $lang['tfa']['u2f'] = "U2F authentication";
 $lang['tfa']['hotp'] = "HOTP authentication";
 $lang['tfa']['totp'] = "TOTP authentication";
 $lang['tfa']['none'] = "Deaktiviert";
 $lang['tfa']['delete_tfa'] = "Disable TFA";
+$lang['tfa']['disable_tfa'] = "Disable TFA until next successful login";
 $lang['tfa']['confirm_tfa'] = "Please confirm your one-time password in the below field";
 $lang['tfa']['confirm'] = "Confirm";
 $lang['tfa']['otp'] = "One-time password";

data/web/user.php

@@ -8,6 +8,7 @@ if (isset($_SESSION['mailcow_cc_role']) && $_SESSION['mailcow_cc_role'] == 'doma
 
 	require_once("inc/header.inc.php");
 	$_SESSION['return_to'] = $_SERVER['REQUEST_URI'];
+  $tfa_data = get_tfa();
 	$username = $_SESSION['mailcow_cc_username'];
 ?>
 <div class="container">
@@ -23,15 +24,27 @@ if (isset($_SESSION['mailcow_cc_role']) && $_SESSION['mailcow_cc_role'] == 'doma
     <hr>
     <div class="row">
       <div class="col-md-3 col-xs-5 text-right"><?=$lang['tfa']['tfa'];?></div>
-      <div class="col-md-9 col-xs-7">
-      <p><?=get_tfa()['pretty'];?></p>
-      </div>
+        <div class="col-sm-9 col-xs-7">
+          <p id="tfa_pretty"><?=$tfa_data['pretty'];?></p>
+            <div id="tfa_additional">
+              <?php if($tfa_data['additional']):
+              foreach ($tfa_data['additional'] as $key_info): ?>
+              <form method="post">
+                <input type="hidden" name="unset_tfa_key" value="<?=$key_info['id'];?>" />
+                <div class="label label-default">🔑 <?=$key_info['key_id'];?> <a href="#" style="font-weight:bold;color:white" onClick="$(this).closest('form').submit()">[<?=strtolower($lang['admin']['remove']);?>]</a></div>
+              </form>
+              <?php endforeach;
+              endif;?>
+            </div>
+            <br />
+        </div>
     </div>
     <div class="row">
       <div class="col-md-3 col-xs-5 text-right"><?=$lang['tfa']['set_tfa'];?></div>
       <div class="col-md-9 col-xs-7">
         <select id="selectTFA" class="selectpicker" title="<?=$lang['tfa']['select'];?>">
           <option value="yubi_otp"><?=$lang['tfa']['yubi_otp'];?></option>
+          <option value="u2f"><?=$lang['tfa']['u2f'];?></option>
           <option value="none"><?=$lang['tfa']['none'];?></option>
         </select>
       </div>