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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\Part;
use Symfony\Component\Mime\Header\Headers;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class AbstractMultipartPart extends AbstractPart
{
private $boundary;
private $parts = [];
public function __construct(AbstractPart ...$parts)
{
parent::__construct();
foreach ($parts as $part) {
$this->parts[] = $part;
}
}
/**
* @return AbstractPart[]
*/
public function getParts(): array
{
return $this->parts;
}
public function getMediaType(): string
{
return 'multipart';
}
public function getPreparedHeaders(): Headers
{
$headers = parent::getPreparedHeaders();
$headers->setHeaderParameter('Content-Type', 'boundary', $this->getBoundary());
return $headers;
}
public function bodyToString(): string
{
$parts = $this->getParts();
$string = '';
foreach ($parts as $part) {
$string .= '--'.$this->getBoundary()."\r\n".$part->toString()."\r\n";
}
$string .= '--'.$this->getBoundary()."--\r\n";
return $string;
}
public function bodyToIterable(): iterable
{
$parts = $this->getParts();
foreach ($parts as $part) {
yield '--'.$this->getBoundary()."\r\n";
yield from $part->toIterable();
yield "\r\n";
}
yield '--'.$this->getBoundary()."--\r\n";
}
public function asDebugString(): string
{
$str = parent::asDebugString();
foreach ($this->getParts() as $part) {
$lines = explode("\n", $part->asDebugString());
$str .= "\n └ ".array_shift($lines);
foreach ($lines as $line) {
$str .= "\n |".$line;
}
}
return $str;
}
private function getBoundary(): string
{
if (null === $this->boundary) {
$this->boundary = strtr(base64_encode(random_bytes(6)), '+/', '-_');
}
return $this->boundary;
}
}
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