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Guillaume Perréal authoredd5d1980d
<?php/* * Copyright (C) 2015 IRSTEA * All rights reserved. */namespace Irstea\FileUploadBundle\Http;use DateTime;use Irstea\FileUploadBundle\Model\UploadedFileInterface;use LogicException;use SplFileInfo;use Symfony\Component\HttpFoundation\File\Exception\FileException;use Symfony\Component\HttpFoundation\Request;use Symfony\Component\HttpFoundation\Response;/** * Description of UploadedFileResponse * * Très, très, fortement inspiré de Symfony\Component\HttpFoundation\UploadedFileResponse. * * @author Guillaume Perréal <guillaume.perreal@irstea.fr> */class UploadedFileResponse extends Response{ /** * * @var UploadedFileInterface */ protected $file; /** * @var int */ protected $offset = 0; /** * * @var int */ protected $maxlen; /** * Constructor. * * @param UploadedFileInterface $file The file to stream * @param int $status The response status code * @param array $headers An array of response headers * @param bool $public Files are public by default * @param null|string $contentDisposition The type of Content-Disposition to set automatically with the filename */ public function __construct(UploadedFileInterface $file = null, $status = 200, $headers = array(), $public = true, $contentDisposition = null) { parent::__construct(null, $status, $headers); if ($file) { $this->setFile($file, $contentDisposition); } if ($public) { $this->setPublic(); } } /** * @param UploadedFileInterface $file The file to stream * @param int $status The response status code * @param array $headers An array of response headers * @param bool $public Files are public by default7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
* @param null|string $contentDisposition The type of Content-Disposition to set automatically with the filename
*
* @return UploadedFileResponse The created response
*/
public static function create($file = null, $status = 200, $headers = array(), $public = true, $contentDisposition = null)
{
return new static($file, $status, $headers, $public, $contentDisposition);
}
/**
* Sets the file to stream.
*
* @param UploadedFileInterface $file The file to stream
* @param string $contentDisposition
*
* @return UploadedFileResponse
*
* @throws FileException
*/
public function setFile(UploadedFileInterface $file, $contentDisposition = null)
{
$this->file = $file;
$this
->setLastModified($this->file->getLastModified())
->setEtag($file->getChecksum());
if ($contentDisposition) {
$this->setContentDisposition($contentDisposition);
}
return $this;
}
/**
* Gets the file.
*
* @return UploadedFileInterface The file to stream
*/
public function getFile()
{
return $this->file;
}
/**
* Sets the Content-Disposition header with the given filename.
*
* @param string $disposition ResponseHeaderBag::DISPOSITION_INLINE or ResponseHeaderBag::DISPOSITION_ATTACHMENT
* @param string $filename Optionally use this filename instead of the real name of the file
* @param string $filenameFallback A fallback filename, containing only ASCII characters. Defaults to an automatically encoded filename
*
* @return UploadedFileResponse
*/
public function setContentDisposition($disposition, $filename = '', $filenameFallback = '')
{
if ($filename === '') {
$filename = $this->file->getDisplayName();
}
$dispositionHeader = $this->headers->makeDisposition($disposition, $filename, $filenameFallback);
$this->headers->set('Content-Disposition', $dispositionHeader);
return $this;
}
/**
* {@inheritdoc}
*/
public function prepare(Request $request)
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{
$this->headers->set('Content-Length', $this->file->getSize());
if (!$this->headers->has('Accept-Ranges')) {
// Only accept ranges on safe HTTP methods
$this->headers->set('Accept-Ranges', $request->isMethodSafe() ? 'bytes' : 'none');
}
if (!$this->headers->has('Content-Type')) {
$this->headers->set('Content-Type', $this->file->getMimeType() ?: 'application/octet-stream');
}
if ('HTTP/1.0' != $request->server->get('SERVER_PROTOCOL')) {
$this->setProtocolVersion('1.1');
}
$this->ensureIEOverSSLCompatibility($request);
$this->offset = 0;
$this->maxlen = -1;
if ($request->headers->has('Range')) {
// Process the range headers.
if (!$request->headers->has('If-Range') || $this->getEtag() == $request->headers->get('If-Range')) {
$range = $request->headers->get('Range');
$fileSize = $this->file->getSize();
list($start, $end) = explode('-', substr($range, 6), 2) + array(0);
$end = ('' === $end) ? $fileSize - 1 : (int) $end;
if ('' === $start) {
$start = $fileSize - $end;
$end = $fileSize - 1;
} else {
$start = (int) $start;
}
if ($start <= $end) {
if ($start < 0 || $end > $fileSize - 1) {
$this->setStatusCode(416);
} elseif ($start !== 0 || $end !== $fileSize - 1) {
$this->maxlen = $end < $fileSize ? $end - $start + 1 : -1;
$this->offset = $start;
$this->setStatusCode(206);
$this->headers->set('Content-Range', sprintf('bytes %s-%s/%s', $start, $end, $fileSize));
$this->headers->set('Content-Length', $end - $start + 1);
}
}
}
}
return $this;
}
/**
* Sends the file.
*/
public function sendContent()
{
if (!$this->isSuccessful()) {
parent::sendContent();
return;
}
if (0 === $this->maxlen) {
return;
}
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$out = fopen('php://output', 'wb');
$this->file->copyTo($out, $this->maxlen, $this->offset);
fclose($out);
}
/**
* {@inheritdoc}
*
* @throws LogicException when the content is not null
*/
public function setContent($content)
{
if (null !== $content) {
throw new LogicException('The content cannot be set on a UploadedFileResponse instance.');
}
}
/**
* {@inheritdoc}
*
* @return false
*/
public function getContent()
{
return false;
}
}