--- /dev/null
+<?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\Util\XmlUtils;
+use Symfony\Component\Translation\MessageCatalogue;
+use Symfony\Component\Translation\Exception\InvalidResourceException;
+use Symfony\Component\Translation\Exception\NotFoundResourceException;
+use Symfony\Component\Config\Resource\FileResource;
+
+/**
+ * XliffFileLoader loads translations from XLIFF files.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class XliffFileLoader implements LoaderInterface
+{
+ /**
+ * {@inheritdoc}
+ */
+ public function load($resource, $locale, $domain = 'messages')
+ {
+ if (!stream_is_local($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));
+ }
+
+ $catalogue = new MessageCatalogue($locale);
+ $this->extract($resource, $catalogue, $domain);
+
+ if (class_exists('Symfony\Component\Config\Resource\FileResource')) {
+ $catalogue->addResource(new FileResource($resource));
+ }
+
+ return $catalogue;
+ }
+
+ private function extract($resource, MessageCatalogue $catalogue, $domain)
+ {
+ try {
+ $dom = XmlUtils::loadFile($resource);
+ } catch (\InvalidArgumentException $e) {
+ throw new InvalidResourceException(sprintf('Unable to load "%s": %s', $resource, $e->getMessage()), $e->getCode(), $e);
+ }
+
+ $xliffVersion = $this->getVersionNumber($dom);
+ $this->validateSchema($xliffVersion, $dom, $this->getSchema($xliffVersion));
+
+ 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.
+ *
+ * @param \DOMDocument $dom Source to extract messages and metadata
+ * @param MessageCatalogue $catalogue Catalogue where we'll collect messages and metadata
+ * @param string $domain The domain
+ */
+ private function extractXliff1(\DOMDocument $dom, MessageCatalogue $catalogue, $domain)
+ {
+ $xml = simplexml_import_dom($dom);
+ $encoding = strtoupper($dom->encoding);
+
+ $xml->registerXPathNamespace('xliff', 'urn:oasis:names:tc:xliff:document:1.2');
+ foreach ($xml->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 = $this->utf8ToCharset((string) (isset($translation->target) ? $translation->target : $source), $encoding);
+
+ $catalogue->set((string) $source, $target, $domain);
+
+ $metadata = array();
+ if ($notes = $this->parseNotesMetadata($translation->note, $encoding)) {
+ $metadata['notes'] = $notes;
+ }
+ if (isset($translation->target) && $translation->target->attributes()) {
+ $metadata['target-attributes'] = array();
+ foreach ($translation->target->attributes() as $key => $value) {
+ $metadata['target-attributes'][$key] = (string) $value;
+ }
+ }
+
+ $catalogue->setMetadata((string) $source, $metadata, $domain);
+ }
+ }
+
+ /**
+ * @param \DOMDocument $dom
+ * @param MessageCatalogue $catalogue
+ * @param string $domain
+ */
+ private function extractXliff2(\DOMDocument $dom, MessageCatalogue $catalogue, $domain)
+ {
+ $xml = simplexml_import_dom($dom);
+ $encoding = strtoupper($dom->encoding);
+
+ $xml->registerXPathNamespace('xliff', 'urn:oasis:names:tc:xliff:document:2.0');
+
+ foreach ($xml->xpath('//xliff:unit/xliff:segment') as $segment) {
+ $source = $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 = $this->utf8ToCharset((string) (isset($segment->target) ? $segment->target : $source), $encoding);
+
+ $catalogue->set((string) $source, $target, $domain);
+
+ $metadata = array();
+ if (isset($segment->target) && $segment->target->attributes()) {
+ $metadata['target-attributes'] = array();
+ foreach ($segment->target->attributes() as $key => $value) {
+ $metadata['target-attributes'][$key] = (string) $value;
+ }
+ }
+
+ $catalogue->setMetadata((string) $source, $metadata, $domain);
+ }
+ }
+
+ /**
+ * Convert a UTF8 string to the specified encoding.
+ *
+ * @param string $content String to decode
+ * @param string $encoding Target encoding
+ *
+ * @return string
+ */
+ private function utf8ToCharset($content, $encoding = null)
+ {
+ if ('UTF-8' !== $encoding && !empty($encoding)) {
+ return mb_convert_encoding($content, $encoding, 'UTF-8');
+ }
+
+ return $content;
+ }
+
+ /**
+ * Validates and parses the given file into a DOMDocument.
+ *
+ * @param string $file
+ * @param \DOMDocument $dom
+ * @param string $schema source of the schema
+ *
+ * @throws \RuntimeException
+ * @throws InvalidResourceException
+ */
+ private function validateSchema($file, \DOMDocument $dom, $schema)
+ {
+ $internalErrors = libxml_use_internal_errors(true);
+
+ $disableEntities = libxml_disable_entity_loader(false);
+
+ if (!@$dom->schemaValidateSource($schema)) {
+ libxml_disable_entity_loader($disableEntities);
+
+ throw new InvalidResourceException(sprintf('Invalid resource provided: "%s"; Errors: %s', $file, implode("\n", $this->getXmlErrors($internalErrors))));
+ }
+
+ libxml_disable_entity_loader($disableEntities);
+
+ $dom->normalizeDocument();
+
+ libxml_clear_errors();
+ libxml_use_internal_errors($internalErrors);
+ }
+
+ private function getSchema($xliffVersion)
+ {
+ if ('1.2' === $xliffVersion) {
+ $schemaSource = file_get_contents(__DIR__.'/schema/dic/xliff-core/xliff-core-1.2-strict.xsd');
+ $xmlUri = 'http://www.w3.org/2001/xml.xsd';
+ } elseif ('2.0' === $xliffVersion) {
+ $schemaSource = file_get_contents(__DIR__.'/schema/dic/xliff-core/xliff-core-2.0.xsd');
+ $xmlUri = 'informativeCopiesOf3rdPartySchemas/w3c/xml.xsd';
+ } else {
+ throw new \InvalidArgumentException(sprintf('No support implemented for loading XLIFF version "%s".', $xliffVersion));
+ }
+
+ return $this->fixXmlLocation($schemaSource, $xmlUri);
+ }
+
+ /**
+ * Internally changes the URI of a dependent xsd to be loaded locally.
+ *
+ * @param string $schemaSource Current content of schema file
+ * @param string $xmlUri External URI of XML to convert to local
+ *
+ * @return string
+ */
+ private function fixXmlLocation($schemaSource, $xmlUri)
+ {
+ $newPath = str_replace('\\', '/', __DIR__).'/schema/dic/xliff-core/xml.xsd';
+ $parts = explode('/', $newPath);
+ if (0 === stripos($newPath, 'phar://')) {
+ $tmpfile = tempnam(sys_get_temp_dir(), 'sf2');
+ if ($tmpfile) {
+ copy($newPath, $tmpfile);
+ $parts = explode('/', str_replace('\\', '/', $tmpfile));
+ }
+ }
+ $drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';
+ $newPath = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));
+
+ return str_replace($xmlUri, $newPath, $schemaSource);
+ }
+
+ /**
+ * Returns the XML errors of the internal XML parser.
+ *
+ * @param bool $internalErrors
+ *
+ * @return array An array of errors
+ */
+ private function getXmlErrors($internalErrors)
+ {
+ $errors = array();
+ foreach (libxml_get_errors() as $error) {
+ $errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
+ LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
+ $error->code,
+ trim($error->message),
+ $error->file ?: 'n/a',
+ $error->line,
+ $error->column
+ );
+ }
+
+ libxml_clear_errors();
+ libxml_use_internal_errors($internalErrors);
+
+ return $errors;
+ }
+
+ /**
+ * Gets xliff file version based on the root "version" attribute.
+ * Defaults to 1.2 for backwards compatibility.
+ *
+ * @param \DOMDocument $dom
+ *
+ * @throws \InvalidArgumentException
+ *
+ * @return string
+ */
+ private function getVersionNumber(\DOMDocument $dom)
+ {
+ /** @var \DOMNode $xliff */
+ foreach ($dom->getElementsByTagName('xliff') as $xliff) {
+ $version = $xliff->attributes->getNamedItem('version');
+ if ($version) {
+ return $version->nodeValue;
+ }
+
+ $namespace = $xliff->attributes->getNamedItem('xmlns');
+ if ($namespace) {
+ if (substr_compare('urn:oasis:names:tc:xliff:document:', $namespace->nodeValue, 0, 34) !== 0) {
+ throw new \InvalidArgumentException(sprintf('Not a valid XLIFF namespace "%s"', $namespace));
+ }
+
+ return substr($namespace, 34);
+ }
+ }
+
+ // Falls back to v1.2
+ return '1.2';
+ }
+
+ /*
+ * @param \SimpleXMLElement|null $noteElement
+ * @param string|null $encoding
+ *
+ * @return array
+ */
+ private function parseNotesMetadata(\SimpleXMLElement $noteElement = null, $encoding = null)
+ {
+ $notes = array();
+
+ if (null === $noteElement) {
+ return $notes;
+ }
+
+ foreach ($noteElement as $xmlNote) {
+ $noteAttributes = $xmlNote->attributes();
+ $note = array('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;
+ }
+}
projects / yaffs-website / blobdiff