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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\Exception\InvalidArgumentException;
use Symfony\Component\Mime\Header\Headers;
use Symfony\Component\Mime\MimeTypes;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
class DataPart extends TextPart
{
/** @internal */
protected $_parent;
private static $mimeTypes;
private $filename;
private $mediaType;
private $cid;
private $handle;
/**
* @param resource|string $body
*/
public function __construct($body, string $filename = null, string $contentType = null, string $encoding = null)
{
unset($this->_parent);
if (null === $contentType) {
$contentType = 'application/octet-stream';
}
[$this->mediaType, $subtype] = explode('/', $contentType);
parent::__construct($body, null, $subtype, $encoding);
if (null !== $filename) {
$this->filename = $filename;
$this->setName($filename);
}
$this->setDisposition('attachment');
}
public static function fromPath(string $path, string $name = null, string $contentType = null): self
{
if (null === $contentType) {
$ext = strtolower(substr($path, strrpos($path, '.') + 1));
if (null === self::$mimeTypes) {
self::$mimeTypes = new MimeTypes();
}
$contentType = self::$mimeTypes->getMimeTypes($ext)[0] ?? 'application/octet-stream';
}
if (false === is_readable($path)) {
throw new InvalidArgumentException(sprintf('Path "%s" is not readable.', $path));
}
if (false === $handle = @fopen($path, 'r', false)) {
throw new InvalidArgumentException(sprintf('Unable to open path "%s".', $path));
}
$p = new self($handle, $name ?: basename($path), $contentType);
$p->handle = $handle;
return $p;
}
/**
* @return $this
*/
public function asInline()
{
return $this->setDisposition('inline');
}
public function getContentId(): string
{
return $this->cid ?: $this->cid = $this->generateContentId();
}
public function hasContentId(): bool
{
return null !== $this->cid;
}
public function getMediaType(): string
{
return $this->mediaType;
}
public function getPreparedHeaders(): Headers
{
$headers = parent::getPreparedHeaders();
if (null !== $this->cid) {
$headers->setHeaderBody('Id', 'Content-ID', $this->cid);
}
if (null !== $this->filename) {
$headers->setHeaderParameter('Content-Disposition', 'filename', $this->filename);
}
return $headers;
}
public function asDebugString(): string
{
$str = parent::asDebugString();
if (null !== $this->filename) {
$str .= ' filename: '.$this->filename;
}
return $str;
}
private function generateContentId(): string
{
return bin2hex(random_bytes(16)).'@symfony';
}
public function __destruct()
{
if (null !== $this->handle && \is_resource($this->handle)) {
fclose($this->handle);
}
}
/**
* @return array
*/
public function __sleep()
{
// converts the body to a string
parent::__sleep();
$this->_parent = [];
foreach (['body', 'charset', 'subtype', 'disposition', 'name', 'encoding'] as $name) {
$r = new \ReflectionProperty(TextPart::class, $name);
$r->setAccessible(true);
$this->_parent[$name] = $r->getValue($this);
}
$this->_headers = $this->getHeaders();
return ['_headers', '_parent', 'filename', 'mediaType'];
}
public function __wakeup()
{
$r = new \ReflectionProperty(AbstractPart::class, 'headers');
$r->setAccessible(true);
$r->setValue($this, $this->_headers);
unset($this->_headers);
if (!\is_array($this->_parent)) {
throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
}
foreach (['body', 'charset', 'subtype', 'disposition', 'name', 'encoding'] as $name) {
if (null !== $this->_parent[$name] && !\is_string($this->_parent[$name])) {
throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
}
$r = new \ReflectionProperty(TextPart::class, $name);
$r->setAccessible(true);
$r->setValue($this, $this->_parent[$name]);
}
unset($this->_parent);
}
}