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<?php

declare(strict_types=1);

/**
 * This file is part of CodeIgniter 4 framework.
 *
 * (c) CodeIgniter Foundation <admin@codeigniter.com>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace CodeIgniter\Files;

use CodeIgniter\Files\Exceptions\FileException;
use CodeIgniter\Files\Exceptions\FileNotFoundException;
use CodeIgniter\I18n\Time;
use Config\Mimes;
use ReturnTypeWillChange;
use SplFileInfo;

/**
 * Wrapper for PHP's built-in SplFileInfo, with goodies.
 *
 * @see \CodeIgniter\Files\FileTest
 */
class File extends SplFileInfo
{
    /**
     * The files size in bytes
     *
     * @var int
     */
    protected $size;

/**
     * @var string|null
     */
    protected $originalMimeType;

/**
     * Run our SplFileInfo constructor with an optional verification
     * that the path is really a file.
     *
     * @throws FileNotFoundException
     */
    public function __construct(string $path, bool $checkFile = false)
    {
        if ($checkFile && ! is_file($path)) {
            throw FileNotFoundException::forFileNotFound($path);
        }

parent::__construct($path);
    }

/**
     * Retrieve the file size.
     *
     * Implementations SHOULD return the value stored in the "size" key of
     * the file in the $_FILES array if available, as PHP calculates this based
     * on the actual size transmitted. A RuntimeException will be thrown if the file
     * does not exist or an error occurs.
     *
     * @return false|int The file size in bytes, or false on failure
     */
    #[ReturnTypeWillChange]
    public function getSize()
    {
        return $this->size ?? ($this->size = parent::getSize());
    }

/**
     * Retrieve the file size by unit, calculated in IEC standards with 1024 as base value.
     *
     * @param positive-int $precision
     */
    public function getSizeByBinaryUnit(FileSizeUnit $unit = FileSizeUnit::B, int $precision = 3): int|string
    {
        return $this->getSizeByUnitInternal(1024, $unit, $precision);
    }

/**
     * Retrieve the file size by unit, calculated in metric standards with 1000 as base value.
     *
     * @param positive-int $precision
     */
    public function getSizeByMetricUnit(FileSizeUnit $unit = FileSizeUnit::B, int $precision = 3): int|string
    {
        return $this->getSizeByUnitInternal(1000, $unit, $precision);
    }

/**
     * Retrieve the file size by unit.
     *
     * @deprecated 4.6.0 Use getSizeByBinaryUnit() or getSizeByMetricUnit() instead
     *
     * @return false|int|string
     */
    public function getSizeByUnit(string $unit = 'b')
    {
        return match (strtolower($unit)) {
            'kb'    => $this->getSizeByBinaryUnit(FileSizeUnit::KB),
            'mb'    => $this->getSizeByBinaryUnit(FileSizeUnit::MB),
            default => $this->getSize(),
        };
    }

/**
     * Attempts to determine the file extension based on the trusted
     * getType() method. If the mime type is unknown, will return null.
     */
    public function guessExtension(): ?string
    {
        // naively get the path extension using pathinfo
        $pathinfo = pathinfo($this->getRealPath() ?: $this->__toString()) + ['extension' => ''];

$proposedExtension = $pathinfo['extension'];

return Mimes::guessExtensionFromType($this->getMimeType(), $proposedExtension);
    }

/**
     * Retrieve the media type of the file. SHOULD not use information from
     * the $_FILES array, but should use other methods to more accurately
     * determine the type of file, like finfo, or mime_content_type().
     *
     * @return string The media type we determined it to be.
     */
    public function getMimeType(): string
    {
        if (! function_exists('finfo_open')) {
            return $this->originalMimeType ?? 'application/octet-stream'; // @codeCoverageIgnore
        }

$finfo    = finfo_open(FILEINFO_MIME_TYPE);
        $mimeType = finfo_file($finfo, $this->getRealPath() ?: $this->__toString());
        finfo_close($finfo);

return $mimeType;
    }

/**
     * Generates a random names based on a simple hash and the time, with
     * the correct file extension attached.
     */
    public function getRandomName(): string
    {
        $extension = $this->getExtension();
        $extension = empty($extension) ? '' : '.' . $extension;

return Time::now()->getTimestamp() . '_' . bin2hex(random_bytes(10)) . $extension;
    }

/**
     * Moves a file to a new location.
     *
     * @return File
     */
    public function move(string $targetPath, ?string $name = null, bool $overwrite = false)
    {
        $targetPath = rtrim($targetPath, '/') . '/';
        $name ??= $this->getBasename();
        $destination = $overwrite ? $targetPath . $name : $this->getDestination($targetPath . $name);

$oldName = $this->getRealPath() ?: $this->__toString();

if (! @rename($oldName, $destination)) {
            $error = error_get_last();

throw FileException::forUnableToMove($this->getBasename(), $targetPath, strip_tags($error['message']));
        }

@chmod($destination, 0777 & ~umask());

return new self($destination);
    }

/**
     * Returns the destination path for the move operation where overwriting is not expected.
     *
     * First, it checks whether the delimiter is present in the filename, if it is, then it checks whether the
     * last element is an integer as there may be cases that the delimiter may be present in the filename.
     * For the all other cases, it appends an integer starting from zero before the file's extension.
     */
    public function getDestination(string $destination, string $delimiter = '_', int $i = 0): string
    {
        if ($delimiter === '') {
            $delimiter = '_';
        }

while (is_file($destination)) {
            $info      = pathinfo($destination);
            $extension = isset($info['extension']) ? '.' . $info['extension'] : '';

if (str_contains($info['filename'], $delimiter)) {
                $parts = explode($delimiter, $info['filename']);

if (is_numeric(end($parts))) {
                    $i = end($parts);
                    array_pop($parts);
                    $parts[]     = ++$i;
                    $destination = $info['dirname'] . DIRECTORY_SEPARATOR . implode($delimiter, $parts) . $extension;
                } else {
                    $destination = $info['dirname'] . DIRECTORY_SEPARATOR . $info['filename'] . $delimiter . ++$i . $extension;
                }
            } else {
                $destination = $info['dirname'] . DIRECTORY_SEPARATOR . $info['filename'] . $delimiter . ++$i . $extension;
            }
        }

return $destination;
    }

private function getSizeByUnitInternal(int $fileSizeBase, FileSizeUnit $unit, int $precision): int|string
    {
        $exponent = $unit->value;
        $divider  = $fileSizeBase ** $exponent;
        $size     = $this->getSize() / $divider;

if ($unit !== FileSizeUnit::B) {
            $size = number_format($size, $precision);
        }

return $size;
    }
}

Adı	Tipi	Boyut	İşlemler
📁 .. (Üst Dizin)
📁 Exceptions	Klasör	-	-	Sil
📄 File.php	Dosya	7.1 KB	Düzenle	Sil
📄 FileCollection.php	Dosya	10.78 KB	Düzenle	Sil
📄 FileSizeUnit.php	Dosya	0.96 KB	Düzenle	Sil

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