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67 lines (52 loc) · 1.66 KB
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<?php
namespace CloudConvert\Handler;
use CloudConvert\Exceptions\SignatureVerificationException;
use CloudConvert\Exceptions\UnexpectedDataException;
use CloudConvert\Hydrator\HydratorInterface;
use CloudConvert\Models\WebhookEvent;
use Psr\Http\Message\RequestInterface;
class WebhookHandler
{
/**
* @var HydratorInterface
*/
protected $hydrator;
/**
* WebhookHandler constructor.
*
* @param HydratorInterface $hydrator
*/
public function __construct(HydratorInterface $hydrator)
{
$this->hydrator = $hydrator;
}
/**
* @param string $payload
* @param string $signature
* @param string $signingSecret
*
* @return WebhookEvent
* @throws SignatureVerificationException
* @throws UnexpectedDataException
*/
public function constructEvent(string $payload, string $signature, string $signingSecret): WebhookEvent
{
if(!hash_equals(hash_hmac('sha256', $payload, $signingSecret), $signature)) {
throw new SignatureVerificationException("Invalid webhook signature");
}
return $this->hydrator->hydrateObject(new WebhookEvent(), json_decode($payload));
}
/**
* @param RequestInterface $request
* @param string $signingSecret
*
* @return WebhookEvent
* @throws SignatureVerificationException
* @throws UnexpectedDataException
*/
public function constructEventFromRequest(RequestInterface $request, string $signingSecret): WebhookEvent
{
return $this->constructEvent($request->getBody(), $request->getHeaderLine('CloudConvert-Signature'),
$signingSecret);
}
}