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<?php
#
function set_2fa($data, $user, $tfa, $ans, $err)
{
$pg = '<h1>Two Factor Authentication Settings</h1>';
if ($err !== null and $err != '')
$pg .= "<span class=err>$err<br><br></span>";
$pg .= '<table cellpadding=20 cellspacing=0 border=1>';
$pg .= '<tr class=dc><td><center>';
$pg .= makeForm('2fa');
$pg .= '<table cellpadding=5 cellspacing=0 border=0>';
$pg .= '<tr class=dc><td>';
switch ($tfa)
{
case '':
$pg .= '<tr class=dl><td>';
$pg .= "You don't have 2FA setup yet<br><br>";
$pg .= 'To use 2FA you need an App on your phone/tablet<br>';
$pg .= 'The free and recommended ones that have been tested here are:<br><br>';
$pg .= "Android: 'FreeOTP Authenticator' by Red Hat<br>";
$pg .= "Apple: 'OTP Auth' by Roland Moers<br><br>";
$pg .= 'Click here to start setting up 2FA: ';
$pg .= '<input type=submit name=Setup value=Setup>';
$pg .= '</td></tr>';
break;
case 'test':
$pg .= '<tr class=dc><td>';
$pg .= '2FA is not yet enabled.<br>';
$pg .= 'Your 2FA key has been created but needs testing.<br><br>';
if (isset($ans['2fa_key']))
{
$key = $ans['2fa_key'];
$sfainfo = $ans['2fa_issuer'].': '.$ans['2fa_auth'].' '.
$ans['2fa_hash'].' '.$ans['2fa_time'].'s';
$who = substr($user, 0, 8);
$sfaurl = 'otpauth://'.$ans['2fa_auth'].'/'.$ans['2fa_issuer'].
':'.htmlspecialchars($who).'?secret='.$ans['2fa_key'].
'&algorithm='.$ans['2fa_hash'].'&issuer='.$ans['2fa_issuer'];
}
else
{
$key = 'unavailable';
$sfainfo = 'unavailable';
$sfaurl = 'unavailable';
}
$pg .= "Your 2FA Secret Key is: $key<br>";
$pg .= "2FA Settings are $sfainfo<br><br>";
$pg .= "2FA URL is <a href='$sfaurl'>Click</a><br><br>";
$pg .= '2FA Value: <input name=Value value="" size=10> ';
$pg .= '<input type=submit name=Test value=Test>';
$pg .= '</td></tr>';
break;
case 'ok':
$pg .= '<tr class=dc><td>';
$pg .= '2FA is enabled on your account.<br><br>';
$pg .= 'If you wish to replace your Secret Key with a new one:<br><br>';
$pg .= 'Current 2FA Value: <input name=Value value="" size=10> ';
$pg .= '<input type=submit name=New value=New><span class=st1>*</span><br><br>';
$pg .= '<span class=st1>*</span>WARNING: replacing the Secret Key will disable 2FA<br>';
$pg .= 'until you successfully test the new key.<br><br>';
$pg .= '</td></tr>';
break;
}
$pg .= '</table></form>';
$pg .= '</center></td></tr>';
$pg .= '</table>';
return $pg;
}
#
function do2fa($data, $user)
{
$err = '';
$setup = getparam('Setup', false);
if ($setup === 'Setup')
{
// rand() included as part of the entropy
$ans = get2fa($user, 'setup', rand(1073741824,2147483647), 0);
}
else
{
$value = getparam('Value', false);
$test = getparam('Test', false);
if ($test === 'Test' and $value !== null)
$ans = get2fa($user, 'test', 0, $value);
else
{
$nw = getparam('New', false);
if ($nw === 'New' and $value !== null)
$ans = get2fa($user, 'new', rand(1073741824,2147483647), $value);
else
$ans = get2fa($user, '', 0, 0);
}
}
if ($ans['STATUS'] != 'ok')
$err = 'DBERR';
else
{
if (isset($ans['2fa_error']))
$err = $ans['2fa_error'];
}
if (!isset($ans['2fa_status']))
$tfa = null;
else
$tfa = $ans['2fa_status'];
$pg = set_2fa($data, $user, $tfa, $ans, $err);
return $pg;
}
#
function show_2fa($info, $page, $menu, $name, $user)
{
gopage($info, NULL, 'do2fa', $page, $menu, $name, $user);
}
#
?>