John Davidson

php - Using symfony UnicodeString on laravel

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Message:


I want to use unicodeString from symfoni in laravel controller


protected function validateWaWebhook($known_token, Request $request)
{
if (($signature = $request->headers->get('X-Hub-Signature-256')) == null) {
// throw new BadRequestHttpException('Header not set');
return "header not set";
}

$signature_parts = explode('=', $signature);

if (count($signature_parts) != 2) {
// throw new BadRequestHttpException('signature has invalid format');
return "Signature invalid format";
}

$type = UnicodeString($request->getContent())->normalize(UnicodeString::NFC);

$known_signature = hash_hmac('sha256', $type, $known_token,false);

if (! hash_equals($known_signature, $signature_parts[1])) {
// throw new UnauthorizedException('Could not verify request signature ' . $signature_parts[1]);
return "Could not verify signature";
}
return "Valid signature";
}

When i try it it show



Error: Call to undefined function App\Http\Controllers\UnicodeString()



I've called the symphony


use Symfony\Component\String\UnicodeString;


My Answer:
>header('X-Signature')) && ($body = $request->getContent())) {
$unicodeString = new Symfony\Component\String\UnicodeString($body);
$computed_signature = hash_hmac('sha256', $unicodeString->toString(), $known_token);

if ($signature === $computed_signature) {
// Signature is valid
return true;
}
}

// Signature is invalid
return false;
}

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