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<?php
namespace Laravel\Fortify;
use Illuminate\Contracts\Cache\Repository;
use Laravel\Fortify\Contracts\TwoFactorAuthenticationProvider as TwoFactorAuthenticationProviderContract;
use PragmaRX\Google2FA\Google2FA;
class TwoFactorAuthenticationProvider implements TwoFactorAuthenticationProviderContract
{
/**
* The underlying library providing two factor authentication helper services.
*
* @var \PragmaRX\Google2FA\Google2FA
*/
protected $engine;
/**
* The cache repository implementation.
*
* @var \Illuminate\Contracts\Cache\Repository|null
*/
protected $cache;
/**
* Create a new two factor authentication provider instance.
*
* @param \PragmaRX\Google2FA\Google2FA $engine
* @param \Illuminate\Contracts\Cache\Repository|null $cache
* @return void
*/
public function __construct(Google2FA $engine, Repository $cache = null)
{
$this->engine = $engine;
$this->cache = $cache;
}
/**
* Generate a new secret key.
*
* @return string
*/
public function generateSecretKey()
{
return $this->engine->generateSecretKey();
}
/**
* Get the two factor authentication QR code URL.
*
* @param string $companyName
* @param string $companyEmail
* @param string $secret
* @return string
*/
public function qrCodeUrl($companyName, $companyEmail, $secret)
{
return $this->engine->getQRCodeUrl($companyName, $companyEmail, $secret);
}
/**
* Verify the given code.
*
* @param string $secret
* @param string $code
* @return bool
*/
public function verify($secret, $code)
{
if (is_int($customWindow = config('fortify-options.two-factor-authentication.window'))) {
$this->engine->setWindow($customWindow);
}
$timestamp = $this->engine->verifyKeyNewer(
$secret, $code, optional($this->cache)->get($key = 'fortify.2fa_codes.'.md5($code))
);
if ($timestamp !== false) {
if ($timestamp === true) {
$timestamp = $this->engine->getTimestamp();
}
optional($this->cache)->put($key, $timestamp, ($this->engine->getWindow() ?: 1) * 60);
return true;
}
return false;
}
}