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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);
namespace Magento\Framework\App\Response\Http;
use Magento\Framework\App\Filesystem\DirectoryList;
/**
* Class FileFactory serves to declare file content in response for download.
*
* @api
*/
class FileFactory
{
/**
* @var \Magento\Framework\App\ResponseInterface
*/
protected $_response;
/**
* @var \Magento\Framework\Filesystem
*/
protected $_filesystem;
/**
* @param \Magento\Framework\App\ResponseInterface $response
* @param \Magento\Framework\Filesystem $filesystem
*/
public function __construct(
\Magento\Framework\App\ResponseInterface $response,
\Magento\Framework\Filesystem $filesystem
) {
$this->_response = $response;
$this->_filesystem = $filesystem;
}
/**
* Declare headers and content file in response for file download
*
* @param string $fileName
* @param string|array $content set to null to avoid starting output, $contentLength should be set explicitly in
* that case
* @param string $baseDir
* @param string $contentType
* @param int $contentLength explicit content length, if strlen($content) isn't applicable
* @throws \Exception
* @throws \InvalidArgumentException
* @return \Magento\Framework\App\ResponseInterface
*
* @SuppressWarnings(PHPMD.CyclomaticComplexity)
* @SuppressWarnings(PHPMD.NPathComplexity)
*/
public function create(
$fileName,
$content,
$baseDir = DirectoryList::ROOT,
$contentType = 'application/octet-stream',
$contentLength = null
) {
$dir = $this->_filesystem->getDirectoryWrite($baseDir);
$isFile = false;
$file = null;
$fileContent = $this->getFileContent($content);
if (is_array($content)) {
if (!isset($content['type']) || !isset($content['value'])) {
throw new \InvalidArgumentException("Invalid arguments. Keys 'type' and 'value' are required.");
}
if ($content['type'] == 'filename') {
$isFile = true;
$file = $content['value'];
if (!$dir->isFile($file)) {
// phpcs:ignore Magento2.Exceptions.DirectThrow
throw new \Exception((string)new \Magento\Framework\Phrase('File not found'));
}
$contentLength = $dir->stat($file)['size'];
}
}
$this->_response->setHttpResponseCode(200)
->setHeader('Pragma', 'public', true)
->setHeader('Cache-Control', 'must-revalidate, post-check=0, pre-check=0', true)
->setHeader('Content-type', $contentType, true)
->setHeader('Content-Length', $contentLength === null ? strlen((string)$fileContent) : $contentLength, true)
->setHeader('Content-Disposition', 'attachment; filename="' . $fileName . '"', true)
->setHeader('Last-Modified', date('r'), true);
if ($content !== null) {
$this->_response->sendHeaders();
if ($isFile) {
$stream = $dir->openFile($file, 'r');
while (!$stream->eof()) {
// phpcs:ignore Magento2.Security.LanguageConstruct.DirectOutput
echo $stream->read(1024);
}
} else {
$dir->writeFile($fileName, $fileContent);
$file = $fileName;
$stream = $dir->openFile($fileName, 'r');
while (!$stream->eof()) {
// phpcs:ignore Magento2.Security.LanguageConstruct.DirectOutput
echo $stream->read(1024);
}
}
$stream->close();
flush();
if (!empty($content['rm'])) {
$dir->delete($file);
}
}
return $this->_response;
}
/**
* Returns file content for writing.
*
* @param string|array $content
* @return string|array
*/
private function getFileContent($content)
{
if (isset($content['type']) && $content['type'] === 'string') {
return $content['value'];
}
return $content;
}
}