<?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\File;
use Symfony\Component\HttpFoundation\File\Exception\CannotWriteFileException;
use Symfony\Component\HttpFoundation\File\Exception\ExtensionFileException;
use Symfony\Component\HttpFoundation\File\Exception\FileException;
use Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException;
use Symfony\Component\HttpFoundation\File\Exception\FormSizeFileException;
use Symfony\Component\HttpFoundation\File\Exception\IniSizeFileException;
use Symfony\Component\HttpFoundation\File\Exception\NoFileException;
use Symfony\Component\HttpFoundation\File\Exception\NoTmpDirFileException;
use Symfony\Component\HttpFoundation\File\Exception\PartialFileException;
use Symfony\Component\Mime\MimeTypes;
/**
* A file uploaded through a form.
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Florian Eckerstorfer <florian@eckerstorfer.org>
* @author Fabien Potencier <fabien@symfony.com>
*/
class UploadedFile extends File
{
private bool $test;
private string $originalName;
private string $mimeType;
private int $error;
/**
* Accepts the information of the uploaded file as provided by the PHP global $_FILES.
*
* The file object is only created when the uploaded file is valid (i.e. when the
* isValid() method returns true). Otherwise the only methods that could be called
* on an UploadedFile instance are:
*
* * getClientOriginalName,
* * getClientMimeType,
* * isValid,
* * getError.
*
* Calling any other method on an non-valid instance will cause an unpredictable result.
*
* @param string $path The full temporary path to the file
* @param string $originalName The original file name of the uploaded file
* @param string|null $mimeType The type of the file as provided by PHP; null defaults to application/octet-stream
* @param int|null $error The error constant of the upload (one of PHP's UPLOAD_ERR_XXX constants); null defaults to UPLOAD_ERR_OK
* @param bool $test Whether the test mode is active
* Local files are used in test mode hence the code should not enforce HTTP uploads
*
* @throws FileException If file_uploads is disabled
* @throws FileNotFoundException If the file does not exist
*/
public function __construct(string $path, string $originalName, string $mimeType = null, int $error = null, bool $test = false)
{
$this->originalName = $this->getName($originalName);
$this->mimeType = $mimeType ?: 'application/octet-stream';
$this->error = $error ?: \UPLOAD_ERR_OK;
$this->test = $test;
parent::__construct($path, \UPLOAD_ERR_OK === $this->error);
}
/**
* Returns the original file name.
*
* It is extracted from the request from which the file has been uploaded.
* Then it should not be considered as a safe value.
*/
public function getClientOriginalName(): string
{
return $this->originalName;
}
/**
* Returns the original file extension.
*
* It is extracted from the original file name that was uploaded.
* Then it should not be considered as a safe value.
*/
public function getClientOriginalExtension(): string
{
return pathinfo($this->originalName, \PATHINFO_EXTENSION);
}
/**
* Returns the file mime type.
*
* The client mime type is extracted from the request from which the file
* was uploaded, so it should not be considered as a safe value.
*
* For a trusted mime type, use getMimeType() instead (which guesses the mime
* type based on the file content).
*
* @see getMimeType()
*/
public function getClientMimeType(): string
{
return $this->mimeType;
}
/**
* Returns the extension based on the client mime type.
*
* If the mime type is unknown, returns null.
*
* This method uses the mime type as guessed by getClientMimeType()
* to guess the file extension. As such, the extension returned
* by this method cannot be trusted.
*
* For a trusted extension, use guessExtension() instead (which guesses
* the extension based on the guessed mime type for the file).
*
* @see guessExtension()
* @see getClientMimeType()
*/
public function guessClientExtension(): ?string
{
if (!class_exists(MimeTypes::class)) {
throw new \LogicException('You cannot guess the extension as the Mime component is not installed. Try running "composer require symfony/mime".');
}
return MimeTypes::getDefault()->getExtensions($this->getClientMimeType())[0] ?? null;
}
/**
* Returns the upload error.
*
* If the upload was successful, the constant UPLOAD_ERR_OK is returned.
* Otherwise one of the other UPLOAD_ERR_XXX constants is returned.
*/
public function getError(): int
{
return $this->error;
}
/**
* Returns whether the file has been uploaded with HTTP and no error occurred.
*/
public function isValid(): bool
{
$isOk = \UPLOAD_ERR_OK === $this->error;
return $this->test ? $isOk : $isOk && is_uploaded_file($this->getPathname());
}
/**
* Moves the file to a new location.
*
* @throws FileException if, for any reason, the file could not have been moved
*/
public function move(string $directory, string $name = null): File
{
if ($this->isValid()) {
if ($this->test) {
return parent::move($directory, $name);
}
$target = $this->getTargetFile($directory, $name);
set_error_handler(function ($type, $msg) use (&$error) { $error = $msg; });
try {
$moved = move_uploaded_file($this->getPathname(), $target);
} finally {
restore_error_handler();
}
if (!$moved) {
throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s).', $this->getPathname(), $target, strip_tags($error)));
}
@chmod($target, 0666 & ~umask());
return $target;
}
switch ($this->error) {
case \UPLOAD_ERR_INI_SIZE:
throw new IniSizeFileException($this->getErrorMessage());
case \UPLOAD_ERR_FORM_SIZE:
throw new FormSizeFileException($this->getErrorMessage());
case \UPLOAD_ERR_PARTIAL:
throw new PartialFileException($this->getErrorMessage());
case \UPLOAD_ERR_NO_FILE:
throw new NoFileException($this->getErrorMessage());
case \UPLOAD_ERR_CANT_WRITE:
throw new CannotWriteFileException($this->getErrorMessage());
case \UPLOAD_ERR_NO_TMP_DIR:
throw new NoTmpDirFileException($this->getErrorMessage());
case \UPLOAD_ERR_EXTENSION:
throw new ExtensionFileException($this->getErrorMessage());
}
throw new FileException($this->getErrorMessage());
}
/**
* Returns the maximum size of an uploaded file as configured in php.ini.
*
* @return int|float The maximum size of an uploaded file in bytes (returns float if size > PHP_INT_MAX)
*/
public static function getMaxFilesize(): int|float
{
$sizePostMax = self::parseFilesize(\ini_get('post_max_size'));
$sizeUploadMax = self::parseFilesize(\ini_get('upload_max_filesize'));
return min($sizePostMax ?: \PHP_INT_MAX, $sizeUploadMax ?: \PHP_INT_MAX);
}
private static function parseFilesize(string $size): int|float
{
if ('' === $size) {
return 0;
}
$size = strtolower($size);
$max = ltrim($size, '+');
if (str_starts_with($max, '0x')) {
$max = \intval($max, 16);
} elseif (str_starts_with($max, '0')) {
$max = \intval($max, 8);
} else {
$max = (int) $max;
}
switch (substr($size, -1)) {
case 't': $max *= 1024;
// no break
case 'g': $max *= 1024;
// no break
case 'm': $max *= 1024;
// no break
case 'k': $max *= 1024;
}
return $max;
}
/**
* Returns an informative upload error message.
*/
public function getErrorMessage(): string
{
static $errors = [
\UPLOAD_ERR_INI_SIZE => 'The file "%s" exceeds your upload_max_filesize ini directive (limit is %d KiB).',
\UPLOAD_ERR_FORM_SIZE => 'The file "%s" exceeds the upload limit defined in your form.',
\UPLOAD_ERR_PARTIAL => 'The file "%s" was only partially uploaded.',
\UPLOAD_ERR_NO_FILE => 'No file was uploaded.',
\UPLOAD_ERR_CANT_WRITE => 'The file "%s" could not be written on disk.',
\UPLOAD_ERR_NO_TMP_DIR => 'File could not be uploaded: missing temporary directory.',
\UPLOAD_ERR_EXTENSION => 'File upload was stopped by a PHP extension.',
];
$errorCode = $this->error;
$maxFilesize = \UPLOAD_ERR_INI_SIZE === $errorCode ? self::getMaxFilesize() / 1024 : 0;
$message = $errors[$errorCode] ?? 'The file "%s" was not uploaded due to an unknown error.';
return sprintf($message, $this->getClientOriginalName(), $maxFilesize);
}
}
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