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<?php declare(strict_types=1);
namespace BradyMcD\TAATP\Workflow;
use BradyMcD\TAATP\AntiCSRFInterface;
use BradyMcD\TAATP\Required\PersistenceInterface;
use BradyMcD\TAATP\SessionInterface;
use BradyMcD\TAATP\HashInterface;
use BradyMcD\TAATP\URI\Otpauth;
use BradyMcD\RFC\_6238;
class Authenticate implements WorkflowInterface
{
public function __construct(
private PersistenceInterface $db,
private RequestInterface $request,
private AntiCSRFInterface $csrf,
private SessionInterface $session,
private mixed $userIndex,
private HashInterface $hash,
)
{
}
function display()
{
echo $this->emitStr();
}
function emitStr(): string
{
$html = "<div id=\"authenticate\"><form %frm>";
$html .= $this->csrf->emitStr();
$html .= "<p>Please enter the code showing on your authenticator</p>";
$html .= "<intput name=\"totp_challenge\" id=\"totp_challenge\" type\"text\" />";
$html .= "<input type=\"submit\" value=\"Submit\" />";
$html .= "</form></div>";
$values = [
"%frm" => $this->ri->formProps("authenticate"),
];
return \str_replace(\array_keys($values), $values, $html);
}
function response(): bool
{
if (!this->csrf->match())
{
return false;
}
$pUri = $this->db->getSecret($this->userIndex);
$totp = _6238(
$pUri.secret,
$pUri.period,
$this->db->getLastTime($this->userIndex),
2,
$pUri.digits,
$this->clock,
$this->hash
);
$flag = $totp.validate($this->ri->getResp("totp_challenge"));
if($flag)
{
$this->db->storeLastTime($this->userIndex, $flag);
return true;
}
return false;
}
}
?>