Subversion-Projekte lars-tiefland.laravel_shop

<?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\Config\Resource\FileResource;

use Symfony\Component\Config\Util\Exception\InvalidXmlException;

use Symfony\Component\Config\Util\Exception\XmlParsingException;

use Symfony\Component\Config\Util\XmlUtils;

use Symfony\Component\Translation\Exception\InvalidResourceException;

use Symfony\Component\Translation\Exception\NotFoundResourceException;

use Symfony\Component\Translation\Exception\RuntimeException;

use Symfony\Component\Translation\MessageCatalogue;

use Symfony\Component\Translation\Util\XliffUtils;

/**

 * XliffFileLoader loads translations from XLIFF files.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class XliffFileLoader implements LoaderInterface

{

    public function load(mixed $resource, string $locale, string $domain = 'messages'): MessageCatalogue

    {

        if (!class_exists(XmlUtils::class)) {

            throw new RuntimeException('Loading translations from the Xliff format requires the Symfony Config component.');

        }

        if (!$this->isXmlString($resource)) {

            if (!stream_is_local($resource)) {

                throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));

            }

            if (!file_exists($resource)) {

                throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));

            }

            if (!is_file($resource)) {

                throw new InvalidResourceException(sprintf('This is neither a file nor an XLIFF string "%s".', $resource));

            }

        }

        try {

            if ($this->isXmlString($resource)) {

                $dom = XmlUtils::parse($resource);

            } else {

                $dom = XmlUtils::loadFile($resource);

            }

        } catch (\InvalidArgumentException|XmlParsingException|InvalidXmlException $e) {

            throw new InvalidResourceException(sprintf('Unable to load "%s": ', $resource).$e->getMessage(), $e->getCode(), $e);

        }

        if ($errors = XliffUtils::validateSchema($dom)) {

            throw new InvalidResourceException(sprintf('Invalid resource provided: "%s"; Errors: ', $resource).XliffUtils::getErrorsAsString($errors));

        }

        $catalogue = new MessageCatalogue($locale);

        $this->extract($dom, $catalogue, $domain);

        if (is_file($resource) && class_exists(FileResource::class)) {

            $catalogue->addResource(new FileResource($resource));

        }

        return $catalogue;

    }

    private function extract(\DOMDocument $dom, MessageCatalogue $catalogue, string $domain)

    {

        $xliffVersion = XliffUtils::getVersionNumber($dom);

        if ('1.2' === $xliffVersion) {

            $this->extractXliff1($dom, $catalogue, $domain);

        }

        if ('2.0' === $xliffVersion) {

            $this->extractXliff2($dom, $catalogue, $domain);

        }

    }

    /**

     * Extract messages and metadata from DOMDocument into a MessageCatalogue.

     */

    private function extractXliff1(\DOMDocument $dom, MessageCatalogue $catalogue, string $domain)

    {

        $xml = simplexml_import_dom($dom);

        $encoding = $dom->encoding ? strtoupper($dom->encoding) : null;

        $namespace = 'urn:oasis:names:tc:xliff:document:1.2';

        $xml->registerXPathNamespace('xliff', $namespace);

        foreach ($xml->xpath('//xliff:file') as $file) {

            $fileAttributes = $file->attributes();

            $file->registerXPathNamespace('xliff', $namespace);

            foreach ($file->xpath('.//xliff:prop') as $prop) {

                $catalogue->setCatalogueMetadata($prop->attributes()['prop-type'], (string) $prop, $domain);

            }

            foreach ($file->xpath('.//xliff:trans-unit') as $translation) {

                $attributes = $translation->attributes();

                if (!(isset($attributes['resname']) || isset($translation->source))) {

                    continue;

                }

                $source = isset($attributes['resname']) && $attributes['resname'] ? $attributes['resname'] : $translation->source;

                // If the xlf file has another encoding specified, try to convert it because

                // simple_xml will always return utf-8 encoded values

                $target = $this->utf8ToCharset((string) ($translation->target ?? $translation->source), $encoding);

                $catalogue->set((string) $source, $target, $domain);

                $metadata = [

                    'source' => (string) $translation->source,

                    'file' => [

                        'original' => (string) $fileAttributes['original'],

                    ],

                ];

                if ($notes = $this->parseNotesMetadata($translation->note, $encoding)) {

                    $metadata['notes'] = $notes;

                }

                if (isset($translation->target) && $translation->target->attributes()) {

                    $metadata['target-attributes'] = [];

                    foreach ($translation->target->attributes() as $key => $value) {

                        $metadata['target-attributes'][$key] = (string) $value;

                    }

                }

                if (isset($attributes['id'])) {

                    $metadata['id'] = (string) $attributes['id'];

                }

                $catalogue->setMetadata((string) $source, $metadata, $domain);

            }

        }

    }

    private function extractXliff2(\DOMDocument $dom, MessageCatalogue $catalogue, string $domain)

    {

        $xml = simplexml_import_dom($dom);

        $encoding = $dom->encoding ? strtoupper($dom->encoding) : null;

        $xml->registerXPathNamespace('xliff', 'urn:oasis:names:tc:xliff:document:2.0');

        foreach ($xml->xpath('//xliff:unit') as $unit) {

            foreach ($unit->segment as $segment) {

                $attributes = $unit->attributes();

                $source = $attributes['name'] ?? $segment->source;

                // If the xlf file has another encoding specified, try to convert it because

                // simple_xml will always return utf-8 encoded values

                $target = $this->utf8ToCharset((string) ($segment->target ?? $segment->source), $encoding);

                $catalogue->set((string) $source, $target, $domain);

                $metadata = [];

                if (isset($segment->target) && $segment->target->attributes()) {

                    $metadata['target-attributes'] = [];

                    foreach ($segment->target->attributes() as $key => $value) {

                        $metadata['target-attributes'][$key] = (string) $value;

                    }

                }

                if (isset($unit->notes)) {

                    $metadata['notes'] = [];

                    foreach ($unit->notes->note as $noteNode) {

                        $note = [];

                        foreach ($noteNode->attributes() as $key => $value) {

                            $note[$key] = (string) $value;

                        }

                        $note['content'] = (string) $noteNode;

                        $metadata['notes'][] = $note;

                    }

                }

                $catalogue->setMetadata((string) $source, $metadata, $domain);

            }

        }

    }

    /**

     * Convert a UTF8 string to the specified encoding.

     */

    private function utf8ToCharset(string $content, string $encoding = null): string

    {

        if ('UTF-8' !== $encoding && !empty($encoding)) {

            return mb_convert_encoding($content, $encoding, 'UTF-8');

        }

        return $content;

    }

    private function parseNotesMetadata(\SimpleXMLElement $noteElement = null, string $encoding = null): array

    {

        $notes = [];

        if (null === $noteElement) {

            return $notes;

        }

        /** @var \SimpleXMLElement $xmlNote */

        foreach ($noteElement as $xmlNote) {

            $noteAttributes = $xmlNote->attributes();

            $note = ['content' => $this->utf8ToCharset((string) $xmlNote, $encoding)];

            if (isset($noteAttributes['priority'])) {

                $note['priority'] = (int) $noteAttributes['priority'];

            }

            if (isset($noteAttributes['from'])) {

                $note['from'] = (string) $noteAttributes['from'];

            }

            $notes[] = $note;

        }

        return $notes;

    }

    private function isXmlString(string $resource): bool

    {

        return str_starts_with($resource, '<?xml');

    }

}