189 lines
6.3 KiB
PHP
Executable File
189 lines
6.3 KiB
PHP
Executable File
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Translation\Loader;
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use Symfony\Component\Config\Util\XmlUtils;
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use Symfony\Component\Translation\MessageCatalogue;
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use Symfony\Component\Translation\Exception\InvalidResourceException;
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use Symfony\Component\Translation\Exception\NotFoundResourceException;
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use Symfony\Component\Config\Resource\FileResource;
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/**
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* XliffFileLoader loads translations from XLIFF files.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*
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* @api
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*/
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class XliffFileLoader implements LoaderInterface
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{
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/**
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* {@inheritdoc}
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*
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* @api
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*/
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public function load($resource, $locale, $domain = 'messages')
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{
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if (!stream_is_local($resource)) {
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throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
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}
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if (!file_exists($resource)) {
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throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
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}
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list($xml, $encoding) = $this->parseFile($resource);
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$xml->registerXPathNamespace('xliff', 'urn:oasis:names:tc:xliff:document:1.2');
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$catalogue = new MessageCatalogue($locale);
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foreach ($xml->xpath('//xliff:trans-unit') as $translation) {
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$attributes = $translation->attributes();
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if (!(isset($attributes['resname']) || isset($translation->source)) || !isset($translation->target)) {
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continue;
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}
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$source = isset($attributes['resname']) && $attributes['resname'] ? $attributes['resname'] : $translation->source;
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// If the xlf file has another encoding specified, try to convert it because
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// simple_xml will always return utf-8 encoded values
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$target = $this->utf8ToCharset((string) $translation->target, $encoding);
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$catalogue->set((string) $source, $target, $domain);
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if (isset($translation->note)) {
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$notes = array();
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foreach ($translation->note as $xmlNote) {
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$noteAttributes = $xmlNote->attributes();
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$note = array('content' => $this->utf8ToCharset((string) $xmlNote, $encoding));
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if (isset($noteAttributes['priority'])) {
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$note['priority'] = (int) $noteAttributes['priority'];
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}
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if (isset($noteAttributes['from'])) {
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$note['from'] = (string) $noteAttributes['from'];
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}
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$notes[] = $note;
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}
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$catalogue->setMetadata((string) $source, array('notes' => $notes), $domain);
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}
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}
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if (class_exists('Symfony\Component\Config\Resource\FileResource')) {
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$catalogue->addResource(new FileResource($resource));
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}
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return $catalogue;
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}
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/**
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* Convert a UTF8 string to the specified encoding.
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*
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* @param string $content String to decode
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* @param string $encoding Target encoding
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*
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* @return string
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*/
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private function utf8ToCharset($content, $encoding = null)
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{
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if ('UTF-8' !== $encoding && !empty($encoding)) {
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if (function_exists('mb_convert_encoding')) {
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return mb_convert_encoding($content, $encoding, 'UTF-8');
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}
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if (function_exists('iconv')) {
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return iconv('UTF-8', $encoding, $content);
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}
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throw new \RuntimeException('No suitable convert encoding function (use UTF-8 as your encoding or install the iconv or mbstring extension).');
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}
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return $content;
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}
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/**
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* Validates and parses the given file into a SimpleXMLElement.
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*
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* @param string $file
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*
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* @throws \RuntimeException
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*
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* @return \SimpleXMLElement
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*
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* @throws InvalidResourceException
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*/
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private function parseFile($file)
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{
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try {
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$dom = XmlUtils::loadFile($file);
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} catch (\InvalidArgumentException $e) {
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throw new InvalidResourceException(sprintf('Unable to load "%s": %s', $file, $e->getMessage()), $e->getCode(), $e);
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}
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$internalErrors = libxml_use_internal_errors(true);
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$location = str_replace('\\', '/', __DIR__).'/schema/dic/xliff-core/xml.xsd';
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$parts = explode('/', $location);
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if (0 === stripos($location, 'phar://')) {
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$tmpfile = tempnam(sys_get_temp_dir(), 'sf2');
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if ($tmpfile) {
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copy($location, $tmpfile);
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$parts = explode('/', str_replace('\\', '/', $tmpfile));
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}
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}
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$drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';
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$location = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));
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$source = file_get_contents(__DIR__.'/schema/dic/xliff-core/xliff-core-1.2-strict.xsd');
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$source = str_replace('http://www.w3.org/2001/xml.xsd', $location, $source);
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if (!@$dom->schemaValidateSource($source)) {
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throw new InvalidResourceException(sprintf('Invalid resource provided: "%s"; Errors: %s', $file, implode("\n", $this->getXmlErrors($internalErrors))));
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}
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$dom->normalizeDocument();
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libxml_clear_errors();
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libxml_use_internal_errors($internalErrors);
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return array(simplexml_import_dom($dom), strtoupper($dom->encoding));
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}
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/**
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* Returns the XML errors of the internal XML parser.
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*
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* @param bool $internalErrors
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*
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* @return array An array of errors
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*/
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private function getXmlErrors($internalErrors)
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{
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$errors = array();
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foreach (libxml_get_errors() as $error) {
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$errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
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LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
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$error->code,
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trim($error->message),
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$error->file ?: 'n/a',
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$error->line,
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$error->column
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);
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}
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libxml_clear_errors();
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libxml_use_internal_errors($internalErrors);
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return $errors;
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}
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}
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