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MailgunRequestParser.php
مشاهدة ملف: MailgunRequestParser.php
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Mailer\Bridge\Mailgun\Webhook;
use Symfony\Component\HttpFoundation\ChainRequestMatcher;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestMatcher\IsJsonRequestMatcher;
use Symfony\Component\HttpFoundation\RequestMatcher\MethodRequestMatcher;
use Symfony\Component\HttpFoundation\RequestMatcherInterface;
use Symfony\Component\Mailer\Bridge\Mailgun\RemoteEvent\MailgunPayloadConverter;
use Symfony\Component\RemoteEvent\Event\Mailer\AbstractMailerEvent;
use Symfony\Component\RemoteEvent\Exception\ParseException;
use Symfony\Component\Webhook\Client\AbstractRequestParser;
use Symfony\Component\Webhook\Exception\RejectWebhookException;
final class MailgunRequestParser extends AbstractRequestParser
{
public function __construct(
private readonly MailgunPayloadConverter $converter,
) {
}
protected function getRequestMatcher(): RequestMatcherInterface
{
return new ChainRequestMatcher([
new MethodRequestMatcher('POST'),
new IsJsonRequestMatcher(),
]);
}
protected function doParse(Request $request, string $secret): ?AbstractMailerEvent
{
$content = $request->toArray();
if (
!isset($content['signature']['timestamp'])
|| !isset($content['signature']['token'])
|| !isset($content['signature']['signature'])
|| !isset($content['event-data']['event'])
|| !isset($content['event-data']['tags'])
|| !isset($content['event-data']['user-variables'])
) {
throw new RejectWebhookException(406, 'Payload is malformed.');
}
$this->validateSignature($content['signature'], $secret);
try {
return $this->converter->convert($content['event-data']);
} catch (ParseException $e) {
throw new RejectWebhookException(406, $e->getMessage(), $e);
}
}
private function validateSignature(array $signature, string $secret): void
{
// see https://documentation.mailgun.com/en/latest/user_manual.html#webhooks-1
if (!hash_equals($signature['signature'], hash_hmac('sha256', $signature['timestamp'].$signature['token'], $secret))) {
throw new RejectWebhookException(406, 'Signature is wrong.');
}
}
}