<?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\Exception\FileException;
use Symfony\Component\HttpFoundation\File\File;
/**
* 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 = 0;
protected $maxlen = -1;
protected $deleteFileAfterSend = false;
protected $chunkSize = 8 * 1024;
/**
* @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 string|null $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(\SplFileInfo|string $file, int $status = 200, array $headers = [], bool $public = true, string $contentDisposition = null, bool $autoEtag = false, bool $autoLastModified = true)
{
parent::__construct(null, $status, $headers);
$this->setFile($file, $contentDisposition, $autoEtag, $autoLastModified);
if ($public) {
$this->setPublic();
}
}
/**
* Sets the file to stream.
*
* @return $this
*
* @throws FileException
*/
public function setFile(\SplFileInfo|string $file, string $contentDisposition = null, bool $autoEtag = false, bool $autoLastModified = true): static
{
if (!$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.
*/
public function getFile(): File
{
return $this->file;
}
/**
* Sets the response stream chunk size.
*
* @return $this
*/
public function setChunkSize(int $chunkSize): static
{
if ($chunkSize < 1 || $chunkSize > \PHP_INT_MAX) {
throw new \LogicException('The chunk size of a BinaryFileResponse cannot be less than 1 or greater than PHP_INT_MAX.');
}
$this->chunkSize = $chunkSize;
return $this;
}
/**
* Automatically sets the Last-Modified header according the file modification date.
*
* @return $this
*/
public function setAutoLastModified(): static
{
$this->setLastModified(\DateTime::createFromFormat('U', $this->file->getMTime()));
return $this;
}
/**
* Automatically sets the ETag header according to the checksum of the file.
*
* @return $this
*/
public function setAutoEtag(): static
{
$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(string $disposition, string $filename = '', string $filenameFallback = ''): static
{
if ('' === $filename) {
$filename = $this->file->getFilename();
}
if ('' === $filenameFallback && (!preg_match('/^[\x20-\x7e]*$/', $filename) || str_contains($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 $request): static
{
if ($this->isInformational() || $this->isEmpty()) {
parent::prepare($request);
$this->maxlen = 0;
return $this;
}
if (!$this->headers->has('Content-Type')) {
$this->headers->set('Content-Type', $this->file->getMimeType() ?: 'application/octet-stream');
}
parent::prepare($request);
$this->offset = 0;
$this->maxlen = -1;
if (false === $fileSize = $this->file->getSize()) {
return $this;
}
$this->headers->remove('Transfer-Encoding');
$this->headers->set('Content-Length', $fileSize);
if (!$this->headers->has('Accept-Ranges')) {
// Only accept ranges on safe HTTP methods
$this->headers->set('Accept-Ranges', $request->isMethodSafe() ? 'bytes' : 'none');
}
if (self::$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 https://www.nginx.com/resources/wiki/start/topics/examples/x-accel/#x-accel-redirect
$parts = HeaderUtils::split($request->headers->get('X-Accel-Mapping', ''), ',=');
foreach ($parts as $part) {
[$pathPrefix, $location] = $part;
if (substr($path, 0, \strlen($pathPrefix)) === $pathPrefix) {
$path = $location.substr($path, \strlen($pathPrefix));
// Only set X-Accel-Redirect header if a valid URI can be produced
// as nginx does not serve arbitrary file paths.
$this->headers->set($type, $path);
$this->maxlen = 0;
break;
}
}
} else {
$this->headers->set($type, $path);
$this->maxlen = 0;
}
} elseif ($request->headers->has('Range') && $request->isMethod('GET')) {
// Process the range headers.
if (!$request->headers->has('If-Range') || $this->hasValidIfRangeHeader($request->headers->get('If-Range'))) {
$range = $request->headers->get('Range');
if (str_starts_with($range, 'bytes=')) {
[$start, $end] = explode('-', substr($range, 6), 2) + [0];
$end = ('' === $end) ? $fileSize - 1 : (int) $end;
if ('' === $start) {
$start = $fileSize - $end;
$end = $fileSize - 1;
} else {
$start = (int) $start;
}
if ($start <= $end) {
$end = min($end, $fileSize - 1);
if ($start < 0 || $start > $end) {
$this->setStatusCode(416);
$this->headers->set('Content-Range', sprintf('bytes */%s', $fileSize));
} elseif ($end - $start < $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 - $start + 1);
}
}
}
}
}
if ($request->isMethod('HEAD')) {
$this->maxlen = 0;
}
return $this;
}
private function hasValidIfRangeHeader(?string $header): bool
{
if ($this->getEtag() === $header) {
return true;
}
if (null === $lastModified = $this->getLastModified()) {
return false;
}
return $lastModified->format('D, d M Y H:i:s').' GMT' === $header;
}
/**
* {@inheritdoc}
*/
public function sendContent(): static
{
try {
if (!$this->isSuccessful()) {
return parent::sendContent();
}
if (0 === $this->maxlen) {
return $this;
}
$out = fopen('php://output', 'w');
$file = fopen($this->file->getPathname(), 'r');
ignore_user_abort(true);
if (0 !== $this->offset) {
fseek($file, $this->offset);
}
$length = $this->maxlen;
while ($length && !feof($file)) {
$read = ($length > $this->chunkSize) ? $this->chunkSize : $length;
$length -= $read;
stream_copy_to_stream($file, $out, $read);
if (connection_aborted()) {
break;
}
}
fclose($out);
fclose($file);
} finally {
if ($this->deleteFileAfterSend && is_file($this->file->getPathname())) {
unlink($this->file->getPathname());
}
}
return $this;
}
/**
* {@inheritdoc}
*
* @throws \LogicException when the content is not null
*/
public function setContent(?string $content): static
{
if (null !== $content) {
throw new \LogicException('The content cannot be set on a BinaryFileResponse instance.');
}
return $this;
}
/**
* {@inheritdoc}
*/
public function getContent(): string|false
{
return false;
}
/**
* Trust X-Sendfile-Type header.
*/
public static function trustXSendfileTypeHeader()
{
self::$trustXSendfileTypeHeader = true;
}
/**
* If this is set to true, the file will be unlinked after the request is sent
* Note: If the X-Sendfile header is used, the deleteFileAfterSend setting will not be used.
*
* @return $this
*/
public function deleteFileAfterSend(bool $shouldDelete = true): static
{
$this->deleteFileAfterSend = $shouldDelete;
return $this;
}
}
At NFC Pay, we strive to provide a seamless and satisfactory experience with our services. This Refund Policy outlines the circumstances under which refunds may be issued for transactions made through our platform. Please read this policy carefully to understand your rights regarding refunds.
1. Eligibility for Refunds
Refunds may be considered under the following circumstances:
2. Non-Refundable Situations
Refunds will generally not be issued in the following situations:
3. Refund Process
To request a refund, please follow these steps:
4. Refund Exceptions
Certain transactions may be subject to specific terms and conditions, including non-refundable fees or charges. Please review the terms associated with each transaction carefully, as some fees may not be eligible for refunds.
5. Modifications to the Refund Policy
NFC Pay reserves the right to modify this Refund Policy at any time. Changes will be communicated through updates on our website and app, and the effective date will be updated accordingly. We encourage you to review this policy periodically to stay informed about our refund practices.
By using NFC Pay, you agree to this Refund Policy and understand the terms under which refunds may be issued. Our goal is to ensure a fair and transparent refund process, providing you with confidence and peace of mind when using our services.