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<?php
declare(strict_types=1);
namespace Laminas\Diactoros;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\UploadedFileInterface;
use function dirname;
use function fclose;
use function fopen;
use function fwrite;
use function is_dir;
use function is_int;
use function is_resource;
use function is_string;
use function is_writable;
use function move_uploaded_file;
use function sprintf;
use function strpos;
use const PHP_SAPI;
use const UPLOAD_ERR_CANT_WRITE;
use const UPLOAD_ERR_EXTENSION;
use const UPLOAD_ERR_FORM_SIZE;
use const UPLOAD_ERR_INI_SIZE;
use const UPLOAD_ERR_NO_FILE;
use const UPLOAD_ERR_NO_TMP_DIR;
use const UPLOAD_ERR_OK;
use const UPLOAD_ERR_PARTIAL;
class UploadedFile implements UploadedFileInterface
{
const ERROR_MESSAGES = [
UPLOAD_ERR_OK => 'There is no error, the file uploaded with success',
UPLOAD_ERR_INI_SIZE => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
UPLOAD_ERR_FORM_SIZE => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was '
. 'specified in the HTML form',
UPLOAD_ERR_PARTIAL => 'The uploaded file was only partially uploaded',
UPLOAD_ERR_NO_FILE => 'No file was uploaded',
UPLOAD_ERR_NO_TMP_DIR => 'Missing a temporary folder',
UPLOAD_ERR_CANT_WRITE => 'Failed to write file to disk',
UPLOAD_ERR_EXTENSION => 'A PHP extension stopped the file upload.',
];
/**
* @var string|null
*/
private $clientFilename;
/**
* @var string|null
*/
private $clientMediaType;
/**
* @var int
*/
private $error;
/**
* @var null|string
*/
private $file;
/**
* @var bool
*/
private $moved = false;
/**
* @var int
*/
private $size;
/**
* @var null|StreamInterface
*/
private $stream;
/**
* @param string|resource|StreamInterface $streamOrFile
* @param int $size
* @param int $errorStatus
* @param string|null $clientFilename
* @param string|null $clientMediaType
* @throws Exception\InvalidArgumentException
*/
public function __construct(
$streamOrFile,
int $size,
int $errorStatus,
string $clientFilename = null,
string $clientMediaType = null
) {
if ($errorStatus === UPLOAD_ERR_OK) {
if (is_string($streamOrFile)) {
$this->file = $streamOrFile;
}
if (is_resource($streamOrFile)) {
$this->stream = new Stream($streamOrFile);
}
if (! $this->file && ! $this->stream) {
if (! $streamOrFile instanceof StreamInterface) {
throw new Exception\InvalidArgumentException('Invalid stream or file provided for UploadedFile');
}
$this->stream = $streamOrFile;
}
}
$this->size = $size;
if (0 > $errorStatus || 8 < $errorStatus) {
throw new Exception\InvalidArgumentException(
'Invalid error status for UploadedFile; must be an UPLOAD_ERR_* constant'
);
}
$this->error = $errorStatus;
$this->clientFilename = $clientFilename;
$this->clientMediaType = $clientMediaType;
}
/**
* {@inheritdoc}
* @throws Exception\UploadedFileAlreadyMovedException if the upload was
* not successful.
*/
public function getStream() : StreamInterface
{
if ($this->error !== UPLOAD_ERR_OK) {
throw Exception\UploadedFileErrorException::dueToStreamUploadError(
self::ERROR_MESSAGES[$this->error]
);
}
if ($this->moved) {
throw new Exception\UploadedFileAlreadyMovedException();
}
if ($this->stream instanceof StreamInterface) {
return $this->stream;
}
$this->stream = new Stream($this->file);
return $this->stream;
}
/**
* {@inheritdoc}
*
* @see http://php.net/is_uploaded_file
* @see http://php.net/move_uploaded_file
* @param string $targetPath Path to which to move the uploaded file.
* @throws Exception\UploadedFileErrorException if the upload was not successful.
* @throws Exception\InvalidArgumentException if the $path specified is invalid.
* @throws Exception\UploadedFileErrorException on any error during the
* move operation, or on the second or subsequent call to the method.
*/
public function moveTo($targetPath) : void
{
if ($this->moved) {
throw new Exception\UploadedFileAlreadyMovedException('Cannot move file; already moved!');
}
if ($this->error !== UPLOAD_ERR_OK) {
throw Exception\UploadedFileErrorException::dueToStreamUploadError(
self::ERROR_MESSAGES[$this->error]
);
}
if (! is_string($targetPath) || empty($targetPath)) {
throw new Exception\InvalidArgumentException(
'Invalid path provided for move operation; must be a non-empty string'
);
}
$targetDirectory = dirname($targetPath);
if (! is_dir($targetDirectory) || ! is_writable($targetDirectory)) {
throw Exception\UploadedFileErrorException::dueToUnwritableTarget($targetDirectory);
}
$sapi = PHP_SAPI;
switch (true) {
case (empty($sapi) || 0 === strpos($sapi, 'cli') || 0 === strpos($sapi, 'phpdbg') || ! $this->file):
// Non-SAPI environment, or no filename present
$this->writeFile($targetPath);
break;
default:
// SAPI environment, with file present
if (false === move_uploaded_file($this->file, $targetPath)) {
throw Exception\UploadedFileErrorException::forUnmovableFile();
}
break;
}
$this->moved = true;
}
/**
* {@inheritdoc}
*
* @return int|null The file size in bytes or null if unknown.
*/
public function getSize() : ?int
{
return $this->size;
}
/**
* {@inheritdoc}
*
* @see http://php.net/manual/en/features.file-upload.errors.php
* @return int One of PHP's UPLOAD_ERR_XXX constants.
*/
public function getError() : int
{
return $this->error;
}
/**
* {@inheritdoc}
*
* @return string|null The filename sent by the client or null if none
* was provided.
*/
public function getClientFilename() : ?string
{
return $this->clientFilename;
}
/**
* {@inheritdoc}
*/
public function getClientMediaType() : ?string
{
return $this->clientMediaType;
}
/**
* Write internal stream to given path
*
* @param string $path
*/
private function writeFile(string $path) : void
{
$handle = fopen($path, 'wb+');
if (false === $handle) {
throw Exception\UploadedFileErrorException::dueToUnwritablePath();
}
$stream = $this->getStream();
$stream->rewind();
while (! $stream->eof()) {
fwrite($handle, $stream->read(4096));
}
fclose($handle);
}
}