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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\Bridge\Twig\Mime;
use League\HTMLToMarkdown\HtmlConverterInterface;
use Symfony\Component\Mime\BodyRendererInterface;
use Symfony\Component\Mime\Exception\InvalidArgumentException;
use Symfony\Component\Mime\HtmlToTextConverter\DefaultHtmlToTextConverter;
use Symfony\Component\Mime\HtmlToTextConverter\HtmlToTextConverterInterface;
use Symfony\Component\Mime\HtmlToTextConverter\LeagueHtmlToMarkdownConverter;
use Symfony\Component\Mime\Message;
use Symfony\Component\Translation\LocaleSwitcher;
use Twig\Environment;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
final class BodyRenderer implements BodyRendererInterface
{
private Environment $twig;
private array $context;
private HtmlToTextConverterInterface $converter;
private ?LocaleSwitcher $localeSwitcher = null;
public function __construct(Environment $twig, array $context = [], ?HtmlToTextConverterInterface $converter = null, ?LocaleSwitcher $localeSwitcher = null)
{
$this->twig = $twig;
$this->context = $context;
$this->converter = $converter ?: (interface_exists(HtmlConverterInterface::class) ? new LeagueHtmlToMarkdownConverter() : new DefaultHtmlToTextConverter());
$this->localeSwitcher = $localeSwitcher;
}
public function render(Message $message): void
{
if (!$message instanceof TemplatedEmail) {
return;
}
if ($message->isRendered()) {
// email has already been rendered
return;
}
$callback = function () use ($message) {
$messageContext = $message->getContext();
if (isset($messageContext['email'])) {
throw new InvalidArgumentException(\sprintf('A "%s" context cannot have an "email" entry as this is a reserved variable.', get_debug_type($message)));
}
$vars = array_merge($this->context, $messageContext, [
'email' => new WrappedTemplatedEmail($this->twig, $message),
]);
if ($template = $message->getTextTemplate()) {
$message->text($this->twig->render($template, $vars));
}
if ($template = $message->getHtmlTemplate()) {
$message->html($this->twig->render($template, $vars));
}
$message->markAsRendered();
// if text body is empty, compute one from the HTML body
if (!$message->getTextBody() && null !== $html = $message->getHtmlBody()) {
$text = $this->converter->convert(\is_resource($html) ? stream_get_contents($html) : $html, $message->getHtmlCharset());
$message->text($text, $message->getHtmlCharset());
}
};
$locale = $message->getLocale();
if ($locale && $this->localeSwitcher) {
$this->localeSwitcher->runWithLocale($locale, $callback);
return;
}
$callback();
}
}