mirror of
https://github.com/Bubka/2FAuth.git
synced 2025-01-23 22:58:35 +01:00
61 lines
1.6 KiB
PHP
61 lines
1.6 KiB
PHP
<?php
|
|
|
|
namespace App\Classes;
|
|
|
|
use OTPHP\TOTP;
|
|
use OTPHP\Factory;
|
|
use Assert\AssertionFailedException;
|
|
|
|
class OTP
|
|
{
|
|
|
|
/**
|
|
* Generate a TOTP
|
|
*
|
|
* @param \App\TwoFAccount $twofaccount
|
|
* @param Boolean $isPreview Prevent updating storage in case of HOTP preview
|
|
* @return an array that represent the totp code
|
|
*/
|
|
public static function generate($twofaccount, $isPreview = false)
|
|
{
|
|
|
|
if( $twofaccount->otpType === 'totp' ) {
|
|
|
|
$currentPosition = time();
|
|
$PeriodCount = floor($currentPosition / $twofaccount->totpPeriod); //nombre de période de x s depuis T0 (x=30 par défaut)
|
|
$currentPeriodStartAt = $PeriodCount * $twofaccount->totpPeriod;
|
|
$positionInCurrentPeriod = $currentPosition - $currentPeriodStartAt;
|
|
|
|
// For memo :
|
|
// $nextOtpAt = ($PeriodCount+1)*$period
|
|
// $remainingTime = $nextOtpAt - time()
|
|
|
|
return $totp = [
|
|
'token' => $twofaccount->token(),
|
|
'position' => $positionInCurrentPeriod
|
|
];
|
|
}
|
|
else {
|
|
// It's a HOTP
|
|
$hotp = [
|
|
'token' => $twofaccount->token(),
|
|
'hotpCounter' => $twofaccount->hotpCounter
|
|
];
|
|
|
|
// now we update the counter for the next OTP generation
|
|
$twofaccount->increaseHotpCounter();
|
|
|
|
$hotp['nextHotpCounter'] = $twofaccount->hotpCounter;
|
|
$hotp['nextUri'] = $twofaccount->uri;
|
|
|
|
if( !$isPreview ) {
|
|
$twofaccount->save();
|
|
}
|
|
|
|
return $hotp;
|
|
}
|
|
|
|
}
|
|
|
|
}
|