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<?php declare(strict_types=1);
namespace BradyMcD\TAATP\Workflow;
use BradyMcD\TAATP\AntiCSRFInterface;
use BradyMcD\TAATP\HashInterface;
use BradyMcD\TAATP\Required\PersistenceInterface;
use BradyMcD\TAATP\Required\RequestInterface;
use BradyMcD\TAATP\SessionInterface;
use BradyMcD\TAATP\WorkflowInterface;
use BradyMcD\TAATP\URI\Otpauth;
use BradyMcD\RFC\_6238;
use chillerlan\QRCode\QRCode;
/** @SuppressWarnings(PHPMD.ShortVariable)*/
class UserManagement implements WorkflowInterface
{
public function __construct(
private PersistenceInterface $db,
private RequestInterface $request,
private AntiCSRFInterface $csrf,
private SessionInterface $session,
private mixed $userIndex,
private HashInterface $hash,
)
{
}
function view()
{
echo $this->emitStr();
}
private function viewEnrollForm(): string
{
$html = "<div id=\"enroll\"><form %frm>";
$html .= $this->csrf->emitStr();
$html .= "<p>To add an authenticator to your account, scan the QR code</p>";
$html .= "<img src=%qr alt=\"qr-code\" />";
$html .= "<label for=\"totp_challenge\">Enter the authentication code:</label>";
$html .= "<input name=\"totp_challenge\" id=\"totp_challenge\" type=\"text\" >";
$html .= "<input type=\"submit\" value=\"Submit\" />";
$html .= "</form></div>";
$provisioningUri = (new Otpauth(
"taatp",
$this->db->userString($this->userIndex),
$this->hash->keygen(),
"SHA1",
30,
6
))->emitStr();
$this->session->store("secret", $provisioningUri);
$values = [
"%frm" => $this->request->formProps("enroll"),
"%qr" => (new QRCode)->render($provisioningUri),
];
return \str_replace(\array_keys($values), $values, $html);
}
private function viewUnenrollForm(): string
{
$html = "<div id=\"unenroll\"><form %frm>";
$html .= $this->csrf->emitStr();
$html .= "<label for=\"totp_challenge\">To de-register your authenticator enter the current authentication code:</label>";
$html .= "<intput name=\"totp_challenge\" id=\"totp_challenge\" type\"text\" />";
$html .= "<input type=\"submit\" value=\"Submit\" />";
$html .= "</form></div>";
$values = [
"%frm" => $this->ri->formProps("unenroll"),
];
return \str_replace(\array_keys($values), $values, $html);
}
function emitStr(): string
{
if (\is_null($this->db->getSecret($this->userIndex)))
{
$this->viewEnrollForm();
}
$this->viewUnenrollForm();
}
function response(): bool
{
if (!$this->csrf->match())
{
return false;
}
$pUri = $this->db->getSecret($this->userIndex);
$enrollFlag = \is_null($pUri);
$enrollFlag && $enrollFlag = $this->session->get('secret');
$totp = _6238(
$pUri.secret,
$pUri.period,
$enrollFlag? 0:$this->db->getLastTime($this->userIndex),
2,
$pUri.digits,
$this->clock,
$this->hash
);
$flag = $totp.validate($this->ri->getResp("totp_challenge"));
if($flag && $enrollFlag)
{
$this->db->storeLastTime($this->userIndex, $flag);
$this->db->storeSecret($this->userIndex, $pUri);
return true;
}
else if($flag)
{
$this->db->stripSecret($this->userIndex);
return true;
}
return false;
}
}
?>