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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\HttpFoundation;

use Symfony\Component\HttpFoundation\File\File;
use Symfony\Component\HttpFoundation\File\Exception\FileException;

/**
 * BinaryFileResponse represents an HTTP response delivering a file.
 *
 * @author Niklas Fiekas <niklas.fiekas@tu-clausthal.de>
 * @author stealth35 <stealth35-php@live.fr>
 * @author Igor Wiedler <igor@wiedler.ch>
 * @author Jordan Alliot <jordan.alliot@gmail.com>
 * @author Sergey Linnik <linniksa@gmail.com>
 */
class BinaryFileResponse extends Response
{
    protected static $trustXSendfileTypeHeader = false;

    /**
     * @var File
     */
    protected $file;
    protected $offset;
    protected $maxlen;
    protected $deleteFileAfterSend = false;

    /**
     * @param \SplFileInfo|string $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
     * @param bool                $autoEtag           Whether the ETag header should be automatically set
     * @param bool                $autoLastModified   Whether the Last-Modified header should be automatically set
     */
    public function __construct($file, $status = 200, $headers = array(), $public = true, $contentDisposition = null, $autoEtag = false, $autoLastModified = true)
    {
        parent::__construct(null, $status, $headers);

        $this->setFile($file, $contentDisposition, $autoEtag, $autoLastModified);

        if ($public) {
            $this->setPublic();
        }
    }

    /**
     * @param \SplFileInfo|string $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
     * @param bool                $autoEtag           Whether the ETag header should be automatically set
     * @param bool                $autoLastModified   Whether the Last-Modified header should be automatically set
     *
     * @return static
     */
    public static function create($file = null, $status = 200, $headers = array(), $public = true, $contentDisposition = null, $autoEtag = false, $autoLastModified = true)
    {
        return new static($file, $status, $headers, $public, $contentDisposition, $autoEtag, $autoLastModified);
    }

    /**
     * Sets the file to stream.
     *
     * @param \SplFileInfo|string $file               The file to stream
     * @param string              $contentDisposition
     * @param bool                $autoEtag
     * @param bool                $autoLastModified
     *
     * @return $this
     *
     * @throws FileException
     */
    public function setFile($file, $contentDisposition = null, $autoEtag = false, $autoLastModified = true)
    {
        if (!$file instanceof File) {
            if ($file instanceof \SplFileInfo) {
                $file = new File($file->getPathname());
            } else {
                $file = new File((string) $file);
            }
        }

        if (!$file->isReadable()) {
            throw new FileException('File must be readable.');
        }

        $this->file = $file;

        if ($autoEtag) {
            $this->setAutoEtag();
        }

        if ($autoLastModified) {
            $this->setAutoLastModified();
        }

        if ($contentDisposition) {
            $this->setContentDisposition($contentDisposition);
        }

        return $this;
    }

    /**
     * Gets the file.
     *
     * @return File The file to stream
     */
    public function getFile()
    {
        return $this->file;
    }

    /**
     * Automatically sets the Last-Modified header according the file modification date.
     */
    public function setAutoLastModified()
    {
        $this->setLastModified(\DateTime::createFromFormat('U', $this->file->getMTime()));

        return $this;
    }

    /**
     * Automatically sets the ETag header according to the checksum of the file.
     */
    public function setAutoEtag()
    {
        $this->setEtag(base64_encode(hash_file('sha256', $this->file->getPathname(), true)));

        return $this;
    }

    /**
     * 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 UTF-8 encoded 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 $this
     */
    public function setContentDisposition($disposition, $filename = '', $filenameFallback = '')
    {
        if ('' === $filename) {
            $filename = $this->file->getFilename();
        }

        if ('' === $filenameFallback && (!preg_match('/^[\x20-\x7e]*$/', $filename) || false !== strpos($filename, '%'))) {
            $encoding = mb_detect_encoding($filename, null, true) ?: '8bit';

            for ($i = 0, $filenameLength = mb_strlen($filename, $encoding); $i < $filenameLength; ++$i) {
                $char = mb_substr($filename, $i, 1, $encoding);

                if ('%' === $char || ord($char) < 32 || ord($char) > 126) {
                    $filenameFallback .= '_';
                } else {
                    $filenameFallback .= $char;
                }
            }
        }

        $dispositionHeader = $this->headers->makeDisposition($disposition, $filename, $filenameFallback);
        $this->headers->set('Content-Disposition', $dispositionHeader);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function prepare(Request $request)
    {
        if (!$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 (false === $fileSize = $this->file->getSize()) {
            return $this;
        }
        $this->headers->set('Content-Length', $fileSize);

        if (!$this->headers->has('Accept-Ranges')) {
            // Only accept ranges on safe HTTP methods
            $this->headers->set('Accept-Ranges', $request->isMethodSafe(false) ? 'bytes' : 'none');
        }

        if (self::$trustXSendfileTypeHeader && $request->headers->has('X-Sendfile-Type')) {
            // Use X-Sendfile, do not send any content.
            $type = $request->headers->get('X-Sendfile-Type');
            $path = $this->file->getRealPath();
            // Fall back to scheme://path for stream wrapped locations.
            if (false === $path) {
                $path = $this->file->getPathname();
            }
            if ('x-accel-redirect' === strtolower($type)) {
                // Do X-Accel-Mapping substitutions.
                // @link http://wiki.nginx.org/X-accel#X-Accel-Redirect
                foreach (explode(',', $request->headers->get('X-Accel-Mapping', '')) as $mapping) {
                    $mapping = explode('=', $mapping, 2);

                    if (2 === count($mapping)) {
                        $pathPrefix = trim($mapping[0]);
                        $location = trim($mapping[1]);

                        if (substr($path, 0, strlen($pathPrefix)) === $pathPrefix) {
                            $path = $location.substr($path, strlen($pathPrefix));
                            break;
                        }
                    }
                }
            }
            $this->headers->set($type, $path);
            $this->maxlen = 0;
        } elseif ($request->headers->has('Range')) {
            // Process the range headers.
            if (!$request->headers->has('If-Range') || $this->hasValidIfRangeHeader($request->headers->get('If-Range'))) {
                $range = $request->headers->get('Range');

                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);
                        $this->headers->set('Content-Range', sprintf('bytes */%s', $fileSize));
                    } elseif (0 !== $start || $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;
    }

    private function hasValidIfRangeHeader($header)
    {
        if ($this->getEtag() === $header) {
            return true;
        }

        if (null === $lastModified = $this->getLastModified()) {
            return false;
        }

        return $lastModified->format('D, d M Y H:i:s').' GMT' === $header;
    }

    /**
     * Sends the file.
     *
     * {@inheritdoc}
     */
    public function sendContent()
    {
        if (!$this->isSuccessful()) {
            return parent::sendContent();
        }

        if (0 === $this->maxlen) {
            return $this;
        }

        $out = fopen('php://output', 'wb');
        $file = fopen($this->file->getPathname(), 'rb');

        stream_copy_to_stream($file, $out, $this->maxlen, $this->offset);

        fclose($out);
        fclose($file);

        if ($this->deleteFileAfterSend) {
            unlink($this->file->getPathname());
        }

        return $this;
    }

    /**
     * {@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 BinaryFileResponse instance.');
        }
    }

    /**
     * {@inheritdoc}
     *
     * @return false
     */
    public function getContent()
    {
        return false;
    }

    /**
     * Trust X-Sendfile-Type header.
     */
    public static function trustXSendfileTypeHeader()
    {
        self::$trustXSendfileTypeHeader = true;
    }

    /**
     * If this is set to true, the file will be unlinked after the request is send
     * Note: If the X-Sendfile header is used, the deleteFileAfterSend setting will not be used.
     *
     * @param bool $shouldDelete
     *
     * @return $this
     */
    public function deleteFileAfterSend($shouldDelete)
    {
        $this->deleteFileAfterSend = $shouldDelete;

        return $this;
    }
}

Filemanager

Name Type Size Permission Actions
Exception Folder 0755
File Folder 0755
Session Folder 0755
Tests Folder 0755
.gitignore File 34 B 0644
AcceptHeader.php File 3.46 KB 0644
AcceptHeaderItem.php File 4.58 KB 0644
ApacheRequest.php File 930 B 0644
BinaryFileResponse.php File 11.65 KB 0644
CHANGELOG.md File 8.21 KB 0644
Cookie.php File 7.87 KB 0644
ExpressionRequestMatcher.php File 1.33 KB 0644
FileBag.php File 3.91 KB 0644
HeaderBag.php File 8.79 KB 0644
IpUtils.php File 4.63 KB 0644
JsonResponse.php File 7.2 KB 0644
LICENSE File 1.04 KB 0644
ParameterBag.php File 5.86 KB 0644
README.md File 537 B 0644
RedirectResponse.php File 2.89 KB 0644
Request.php File 69.28 KB 0644
RequestMatcher.php File 4.35 KB 0644
RequestMatcherInterface.php File 687 B 0644
RequestStack.php File 2.3 KB 0644
Response.php File 37.02 KB 0644
ResponseHeaderBag.php File 9.8 KB 0644
ServerBag.php File 4.14 KB 0644
StreamedResponse.php File 3.24 KB 0644
composer.json File 958 B 0644
phpunit.xml.dist File 892 B 0644