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<?php
/**
* Slim Framework (https://slimframework.com)
*
* @license https://github.com/slimphp/Slim-Psr7/blob/master/LICENSE.md (MIT License)
*/
declare(strict_types=1);
namespace Slim\Psr7;
use InvalidArgumentException;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UploadedFileInterface;
use RuntimeException;
use Slim\Psr7\Factory\StreamFactory;
use function copy;
use function dirname;
use function is_array;
use function is_string;
use function is_uploaded_file;
use function is_writable;
use function move_uploaded_file;
use function rename;
use function sprintf;
use function strpos;
use function unlink;
use const UPLOAD_ERR_OK;
class UploadedFile implements UploadedFileInterface
{
/**
* The client-provided full path to the file
*
* @var string
*/
protected $file;
/**
* The client-provided file name.
*
* @var string|null
*/
protected $name;
/**
* The client-provided media type of the file.
*
* @var string|null
*/
protected $type;
/**
* @var int|null
*/
protected $size;
/**
* A valid PHP UPLOAD_ERR_xxx code for the file upload.
*
* @var int
*/
protected $error = UPLOAD_ERR_OK;
/**
* Indicates if the upload is from a SAPI environment.
*
* @var bool
*/
protected $sapi = false;
/**
* @var StreamInterface|null
*/
protected $stream;
/**
* Indicates if the uploaded file has already been moved.
*
* @var bool
*/
protected $moved = false;
/**
* @param string|StreamInterface $fileNameOrStream The full path to the uploaded file provided by the client,
* or a StreamInterface instance.
* @param string|null $name The file name.
* @param string|null $type The file media type.
* @param int|null $size The file size in bytes.
* @param int $error The UPLOAD_ERR_XXX code representing the status of the upload.
* @param bool $sapi Indicates if the upload is in a SAPI environment.
*/
final public function __construct(
$fileNameOrStream,
?string $name = null,
?string $type = null,
?int $size = null,
int $error = UPLOAD_ERR_OK,
bool $sapi = false
) {
if ($fileNameOrStream instanceof StreamInterface) {
$file = $fileNameOrStream->getMetadata('uri');
if (!is_string($file)) {
throw new InvalidArgumentException('No URI associated with the stream.');
}
$this->file = $file;
$this->stream = $fileNameOrStream;
} elseif (is_string($fileNameOrStream)) {
$this->file = $fileNameOrStream;
} else {
throw new InvalidArgumentException(
'Please provide a string (full path to the uploaded file) or an instance of StreamInterface.'
);
}
$this->name = $name;
$this->type = $type;
$this->size = $size;
$this->error = $error;
$this->sapi = $sapi;
}
/**
* {@inheritdoc}
*/
public function getStream()
{
if ($this->moved) {
throw new RuntimeException(sprintf('Uploaded file %s has already been moved', $this->name));
}
if (!$this->stream) {
$this->stream = (new StreamFactory())->createStreamFromFile($this->file);
}
return $this->stream;
}
/**
* {@inheritdoc}
*/
public function moveTo($targetPath): void
{
if ($this->moved) {
throw new RuntimeException('Uploaded file already moved');
}
$targetIsStream = strpos($targetPath, '://') > 0;
if (!$targetIsStream && !is_writable(dirname($targetPath))) {
throw new InvalidArgumentException('Upload target path is not writable');
}
if ($targetIsStream) {
if (!copy($this->file, $targetPath)) {
throw new RuntimeException(sprintf('Error moving uploaded file %s to %s', $this->name, $targetPath));
}
if (!unlink($this->file)) {
throw new RuntimeException(sprintf('Error removing uploaded file %s', $this->name));
}
} elseif ($this->sapi) {
if (!is_uploaded_file($this->file)) {
throw new RuntimeException(sprintf('%s is not a valid uploaded file', $this->file));
}
if (!move_uploaded_file($this->file, $targetPath)) {
throw new RuntimeException(sprintf('Error moving uploaded file %s to %s', $this->name, $targetPath));
}
} else {
if (!rename($this->file, $targetPath)) {
throw new RuntimeException(sprintf('Error moving uploaded file %s to %s', $this->name, $targetPath));
}
}
$this->moved = true;
}
/**
* {@inheritdoc}
*/
public function getError(): int
{
return $this->error;
}
/**
* {@inheritdoc}
*/
public function getClientFilename(): ?string
{
return $this->name;
}
/**
* {@inheritdoc}
*/
public function getClientMediaType(): ?string
{
return $this->type;
}
/**
* {@inheritdoc}
*/
public function getSize(): ?int
{
return $this->size;
}
/**
* Returns the client-provided full path to the file
*
* @internal This method is not part of the PSR-7 standard
*
* @return string
*/
public function getFilePath(): string
{
return $this->file;
}
/**
* Create a normalized tree of UploadedFile instances from the Environment.
*
* @internal This method is not part of the PSR-7 standard.
*
* @param array $globals The global server variables.
*
* @return array A normalized tree of UploadedFile instances or null if none are provided.
*/
public static function createFromGlobals(array $globals): array
{
if (isset($globals['slim.files']) && is_array($globals['slim.files'])) {
return $globals['slim.files'];
}
if (!empty($_FILES)) {
return static::parseUploadedFiles($_FILES);
}
return [];
}
/**
* Parse a non-normalized, i.e. $_FILES superglobal, tree of uploaded file data.
*
* @internal This method is not part of the PSR-7 standard.
*
* @param array $uploadedFiles The non-normalized tree of uploaded file data.
*
* @return array A normalized tree of UploadedFile instances.
*/
private static function parseUploadedFiles(array $uploadedFiles): array
{
$parsed = [];
foreach ($uploadedFiles as $field => $uploadedFile) {
if (!isset($uploadedFile['error'])) {
if (is_array($uploadedFile)) {
$parsed[$field] = static::parseUploadedFiles($uploadedFile);
}
continue;
}
$parsed[$field] = [];
if (!is_array($uploadedFile['error'])) {
$parsed[$field] = new static(
$uploadedFile['tmp_name'],
isset($uploadedFile['name']) ? $uploadedFile['name'] : null,
isset($uploadedFile['type']) ? $uploadedFile['type'] : null,
isset($uploadedFile['size']) ? $uploadedFile['size'] : null,
$uploadedFile['error'],
true
);
} else {
$subArray = [];
foreach ($uploadedFile['error'] as $fileIdx => $error) {
// Normalize sub array and re-parse to move the input's key name up a level
$subArray[$fileIdx]['name'] = $uploadedFile['name'][$fileIdx];
$subArray[$fileIdx]['type'] = $uploadedFile['type'][$fileIdx];
$subArray[$fileIdx]['tmp_name'] = $uploadedFile['tmp_name'][$fileIdx];
$subArray[$fileIdx]['error'] = $uploadedFile['error'][$fileIdx];
$subArray[$fileIdx]['size'] = $uploadedFile['size'][$fileIdx];
$parsed[$field] = static::parseUploadedFiles($subArray);
}
}
}
return $parsed;
}
}