mirror of
https://github.com/vrana/adminer.git
synced 2026-01-16 04:23:21 +01:00
80 lines
2.4 KiB
PHP
80 lines
2.4 KiB
PHP
<?php
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/** Require One-Time Password at login
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* @link https://www.adminer.org/plugins/otp/
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* @author Jakub Vrana, https://www.vrana.cz/
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* @license https://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
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* @license https://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 (one or other)
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*/
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class AdminerLoginOtp extends Adminer\Plugin {
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protected $secret;
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/**
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* @param string $secret decoded secret, e.g. base64_decode("SECRET")
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*/
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function __construct($secret) {
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$this->secret = $secret;
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if ($_POST["auth"]) {
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$_SESSION["otp"] = (string) $_POST["auth"]["otp"];
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}
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}
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function loginFormField($name, $heading, $value) {
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if ($name == 'password') {
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return $heading . $value . "\n"
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. "<tr><th><abbr title='" . $this->lang('One Time Password') . "'>OTP</abbr>"
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. "<td><input type='number' name='auth[otp]' value='" . Adminer\h($_SESSION["otp"]) . "' size='6' autocomplete='one-time-code' inputmode='numeric' maxlength='6' pattern='\d{6}'>\n"
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;
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}
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}
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function login($login, $password) {
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if (isset($_SESSION["otp"])) {
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$timeSlot = floor(time() / 30);
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foreach (array(0, -1, 1) as $skew) {
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if ($_SESSION["otp"] == $this->getOtp($timeSlot + $skew)) {
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Adminer\restart_session();
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unset($_SESSION["otp"]);
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Adminer\stop_session();
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return;
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}
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}
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return $this->lang('Invalid OTP.');
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}
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}
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function getOtp($timeSlot) {
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$data = str_pad(pack('N', $timeSlot), 8, "\0", STR_PAD_LEFT);
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$hash = hash_hmac('sha1', $data, $this->secret, true);
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$offset = ord(substr($hash, -1)) & 0xF;
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$unpacked = unpack('N', substr($hash, $offset, 4));
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return ($unpacked[1] & 0x7FFFFFFF) % 1e6;
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}
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function screenshot() {
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return "https://www.adminer.org/static/login-otp.png";
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}
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protected $translations = array(
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'cs' => array(
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'' => 'Při přihlášení požaduje jednorázové heslo',
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'One Time Password' => 'Jednorázové heslo',
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'Invalid OTP.' => 'Neplatné jednorázové heslo.',
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),
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'de' => array(
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'' => 'Bei der Anmeldung ist ein Einmalpasswort (Zwei-Faktor-Authentifizierung) erforderlich',
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'One Time Password' => 'Einmal-Passwort',
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'Invalid OTP.' => 'Ungültiger OTP.',
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),
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'pl' => array(
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'' => 'Wymagaj jednorazowego hasła przy logowaniu',
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),
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'ro' => array(
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'' => 'Cereți o parolă unică la autentificare',
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),
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'ja' => array(
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'' => 'ログイン時にワンタイムパスワード (二要素認証) が必要',
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),
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);
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}
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