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Edit File: AbstractApiTransport.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\Transport; use Symfony\Component\Mailer\Envelope; use Symfony\Component\Mailer\Exception\RuntimeException; use Symfony\Component\Mailer\SentMessage; use Symfony\Component\Mime\Address; use Symfony\Component\Mime\Email; use Symfony\Component\Mime\Message; use Symfony\Component\Mime\MessageConverter; use Symfony\Contracts\HttpClient\ResponseInterface; /** * @author Fabien Potencier <fabien@symfony.com> */ abstract class AbstractApiTransport extends AbstractHttpTransport { abstract protected function doSendApi(SentMessage $sentMessage, Email $email, Envelope $envelope): ResponseInterface; protected function doSendHttp(SentMessage $message): ResponseInterface { $originalMessage = $message->getOriginalMessage(); if (!$originalMessage instanceof Message) { throw new RuntimeException(\sprintf('Unable to send message with the "%s" transport: the message must be an instance of "%s" (got "%s"). An API transport builds its payload from the message fields; use an SMTP transport to send a raw message.', static::class, Message::class, get_debug_type($originalMessage))); } try { $email = MessageConverter::toEmail($originalMessage); } catch (\Exception $e) { throw new RuntimeException(\sprintf('Unable to send message with the "%s" transport: ', static::class).$e->getMessage(), 0, $e); } return $this->doSendApi($message, $email, $message->getEnvelope()); } /** * @return Address[] */ protected function getRecipients(Email $email, Envelope $envelope): array { return array_filter($envelope->getRecipients(), static fn (Address $address) => !\in_array($address, array_merge($email->getCc(), $email->getBcc()), true)); } }