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<?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\Mime;
use Symfony\Component\Mime\Exception\LogicException;
use Symfony\Component\Mime\Header\Headers;
use Symfony\Component\Mime\Part\AbstractPart;
use Symfony\Component\Mime\Part\TextPart;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
class Message extends RawMessage
{
private Headers $headers;
public function __construct(
?Headers $headers = null,
private ?AbstractPart $body = null,
) {
$this->headers = $headers ? clone $headers : new Headers();
}
public function __clone()
{
$this->headers = clone $this->headers;
if (null !== $this->body) {
$this->body = clone $this->body;
}
}
/**
* @return $this
*/
public function setBody(?AbstractPart $body): static
{
$this->body = $body;
return $this;
}
public function getBody(): ?AbstractPart
{
return $this->body;
}
/**
* @return $this
*/
public function setHeaders(Headers $headers): static
{
$this->headers = $headers;
return $this;
}
public function getHeaders(): Headers
{
return $this->headers;
}
public function getPreparedHeaders(): Headers
{
$headers = clone $this->headers;
if (!$headers->has('From')) {
if (!$headers->has('Sender')) {
throw new LogicException('An email must have a "From" or a "Sender" header.');
}
$headers->addMailboxListHeader('From', [$headers->get('Sender')->getAddress()]);
}
if (!$headers->has('MIME-Version')) {
$headers->addTextHeader('MIME-Version', '1.0');
}
if (!$headers->has('Date')) {
$headers->addDateHeader('Date', new \DateTimeImmutable());
}
// determine the "real" sender
if (!$headers->has('Sender') && \count($froms = $headers->get('From')->getAddresses()) > 1) {
$headers->addMailboxHeader('Sender', $froms[0]);
}
if (!$headers->has('Message-ID')) {
$headers->addIdHeader('Message-ID', $this->generateMessageId());
}
// remove the Bcc field which should NOT be part of the sent message
$headers->remove('Bcc');
return $headers;
}
public function toString(): string
{
if (null === $body = $this->getBody()) {
$body = new TextPart('');
}
return $this->getPreparedHeaders()->toString().$body->toString();
}
public function toIterable(): iterable
{
if (null === $body = $this->getBody()) {
$body = new TextPart('');
}
yield $this->getPreparedHeaders()->toString();
yield from $body->toIterable();
}
public function ensureValidity(): void
{
if (!$this->headers->get('To')?->getBody() && !$this->headers->get('Cc')?->getBody() && !$this->headers->get('Bcc')?->getBody()) {
throw new LogicException('An email must have a "To", "Cc", or "Bcc" header.');
}
if (!$this->headers->get('From')?->getBody() && !$this->headers->get('Sender')?->getBody()) {
throw new LogicException('An email must have a "From" or a "Sender" header.');
}
parent::ensureValidity();
}
public function generateMessageId(): string
{
if ($this->headers->has('Sender')) {
$sender = $this->headers->get('Sender')->getAddress();
} elseif ($this->headers->has('From')) {
if (!$froms = $this->headers->get('From')->getAddresses()) {
throw new LogicException('A "From" header must have at least one email address.');
}
$sender = $froms[0];
} else {
throw new LogicException('An email must have a "From" or a "Sender" header.');
}
return bin2hex(random_bytes(16)).strstr($sender->getAddress(), '@');
}
public function __serialize(): array
{
return [$this->headers, $this->body];
}
public function __unserialize(array $data): void
{
[$this->headers, $this->body] = $data;
}
}