public final function sign(SetCookie $setCookie, Key $key) : SetCookie
{
$value = $setCookie->getValue();
$hmac = hash_hmac($this->getAlgorithm(), $value, $key->toString());
$value = $hmac . $value;
return new SetCookie($setCookie->getName(), $value, $setCookie->expiresAt(), $setCookie->getPath(), $setCookie->getDomain(), $setCookie->isSecure(), $setCookie->isHttpOnly());
}
use HansOtt\PSR7Cookies\RequestCookies;
use HansOtt\PSR7Cookies\Signer\Hmac\Sha256;
require_once __DIR__ . '/../vendor/autoload.php';
date_default_timezone_set('UTC');
$serverRequest = ServerRequest::fromGlobals();
$requestCookies = RequestCookies::createFromRequest($serverRequest);
$signer = new Sha256();
$key = new Key('LAp27106kAgG14u74t5kb^AYrW4^5ih$');
$counter = 0;
if ($requestCookies->has('counter')) {
$counterCookie = $requestCookies->get('counter');
try {
$counterCookie = $signer->verify($counterCookie, $key);
$counter = (int) $counterCookie->getValue();
} catch (\HansOtt\PSR7Cookies\Signer\Mismatch $e) {
}
$counter++;
}
$setCounterCookie = SetCookie::thatStaysForever('counter', $counter);
$setCounterCookie = $signer->sign($setCounterCookie, $key);
$response = new Response();
$body = \GuzzleHttp\Psr7\stream_for(sprintf('Counter: %d', $counter));
$response = $response->withBody($body);
$response = $setCounterCookie->addToResponse($response);
header(sprintf('HTTP/%s %s %s', $response->getProtocolVersion(), $response->getStatusCode(), $response->getReasonPhrase()));
foreach ($response->getHeaders() as $name => $values) {
foreach ($values as $value) {
header(sprintf('%s: %s', $name, $value), false);
}
}
echo $response->getBody();