<?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\Translation\Loader;
use Symfony\Component\Translation\Exception\InvalidResourceException;
/**
* @copyright Copyright (c) 2010, Union of RAD http://union-of-rad.org (http://lithify.me/)
*/
class MoFileLoader extends FileLoader
{
/**
* Magic used for validating the format of an MO file as well as
* detecting if the machine used to create that file was little endian.
*/
public const MO_LITTLE_ENDIAN_MAGIC = 0x950412DE;
/**
* Magic used for validating the format of an MO file as well as
* detecting if the machine used to create that file was big endian.
*/
public const MO_BIG_ENDIAN_MAGIC = 0xDE120495;
/**
* The size of the header of an MO file in bytes.
*/
public const MO_HEADER_SIZE = 28;
/**
* Parses machine object (MO) format, independent of the machine's endian it
* was created on. Both 32bit and 64bit systems are supported.
*
* {@inheritdoc}
*/
protected function loadResource(string $resource): array
{
$stream = fopen($resource, 'r');
$stat = fstat($stream);
if ($stat['size'] < self::MO_HEADER_SIZE) {
throw new InvalidResourceException('MO stream content has an invalid format.');
}
$magic = unpack('V1', fread($stream, 4));
$magic = hexdec(substr(dechex(current($magic)), -8));
if (self::MO_LITTLE_ENDIAN_MAGIC == $magic) {
$isBigEndian = false;
} elseif (self::MO_BIG_ENDIAN_MAGIC == $magic) {
$isBigEndian = true;
} else {
throw new InvalidResourceException('MO stream content has an invalid format.');
}
// formatRevision
$this->readLong($stream, $isBigEndian);
$count = $this->readLong($stream, $isBigEndian);
$offsetId = $this->readLong($stream, $isBigEndian);
$offsetTranslated = $this->readLong($stream, $isBigEndian);
// sizeHashes
$this->readLong($stream, $isBigEndian);
// offsetHashes
$this->readLong($stream, $isBigEndian);
$messages = [];
for ($i = 0; $i < $count; ++$i) {
$pluralId = null;
$translated = null;
fseek($stream, $offsetId + $i * 8);
$length = $this->readLong($stream, $isBigEndian);
$offset = $this->readLong($stream, $isBigEndian);
if ($length < 1) {
continue;
}
fseek($stream, $offset);
$singularId = fread($stream, $length);
if (str_contains($singularId, "\000")) {
[$singularId, $pluralId] = explode("\000", $singularId);
}
fseek($stream, $offsetTranslated + $i * 8);
$length = $this->readLong($stream, $isBigEndian);
$offset = $this->readLong($stream, $isBigEndian);
if ($length < 1) {
continue;
}
fseek($stream, $offset);
$translated = fread($stream, $length);
if (str_contains($translated, "\000")) {
$translated = explode("\000", $translated);
}
$ids = ['singular' => $singularId, 'plural' => $pluralId];
$item = compact('ids', 'translated');
if (!empty($item['ids']['singular'])) {
$id = $item['ids']['singular'];
if (isset($item['ids']['plural'])) {
$id .= '|'.$item['ids']['plural'];
}
$messages[$id] = stripcslashes(implode('|', (array) $item['translated']));
}
}
fclose($stream);
return array_filter($messages);
}
/**
* Reads an unsigned long from stream respecting endianness.
*
* @param resource $stream
*/
private function readLong($stream, bool $isBigEndian): int
{
$result = unpack($isBigEndian ? 'N1' : 'V1', fread($stream, 4));
$result = current($result);
return (int) substr($result, -8);
}
}
In the digital age, privacy concerns have become increasingly paramount, prompting the European Union to enact the General Data Protection Regulation (GDPR) in 2018. Among its many provisions, GDPR sets strict guidelines for the collection and processing of personal data, including the use of cookies on websites. Privacy Policy
