1 <?php

     2 

     3 /*

     4  * This file is part of the Symfony package.

     5  *

     6  * (c) Fabien Potencier <fabien@symfony.com>

     7  *

     8  * For the full copyright and license information, please view the LICENSE

     9  * file that was distributed with this source code.

    10  */

    11 

    12 namespace Symfony\Component\Translation\Loader;

    13 

    14 use Symfony\Component\Translation\MessageCatalogue;

    15 use Symfony\Component\Config\Resource\FileResource;

    16 

    17 /**

    18  * XliffFileLoader loads translations from XLIFF files.

    19  *

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

    21  *

    22  * @api

    23  */

    24 class XliffFileLoader implements LoaderInterface

    25 {

    26     /**

    27      * {@inheritdoc}

    28      *

    29      * @api

    30      */

    31     public function load($resource, $locale, $domain = 'messages')

    32     {

    33         $xml = $this->parseFile($resource);

    34         $xml->registerXPathNamespace('xliff', 'urn:oasis:names:tc:xliff:document:1.2');

    35 

    36         $catalogue = new MessageCatalogue($locale);

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

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

    39         }

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

    41 

    42         return $catalogue;

    43     }

    44 

    45     /**

    46      * Validates and parses the given file into a SimpleXMLElement

    47      *

    48      * @param  string $file

    49      * @return SimpleXMLElement

    50      */

    51     private function parseFile($file)

    52     {

    53         $dom = new \DOMDocument();

    54         $current = libxml_use_internal_errors(true);

    55         if (!@$dom->load($file, LIBXML_COMPACT)) {

    56             throw new \RuntimeException(implode("\n", $this->getXmlErrors()));

    57         }

    58 

    59         $location = str_replace('\\', '/', __DIR__).'/schema/dic/xliff-core/xml.xsd';

    60         $parts = explode('/', $location);

    61         if (preg_match('#^phar://#i', $location)) {

    62             $tmpfile = tempnam(sys_get_temp_dir(), 'sf2');

    63             if ($tmpfile) {

    64                 file_put_contents($tmpfile, file_get_contents($location));

    65                 $tmpfiles[] = $tmpfile;

    66                 $parts = explode('/', str_replace('\\', '/', $tmpfile));

    67             }

    68         }

    69         $drive = '\\' === DIRECTORY_SEPARATOR ? array_shift($parts).'/' : '';

    70         $location = 'file:///'.$drive.implode('/', array_map('rawurlencode', $parts));

    71 

    72         $source = file_get_contents(__DIR__.'/schema/dic/xliff-core/xliff-core-1.2-strict.xsd');

    73         $source = str_replace('http://www.w3.org/2001/xml.xsd', $location, $source);

    74 

    75         if (!@$dom->schemaValidateSource($source)) {

    76             throw new \RuntimeException(implode("\n", $this->getXmlErrors()));

    77         }

    78         $dom->validateOnParse = true;

    79         $dom->normalizeDocument();

    80         libxml_use_internal_errors($current);

    81 

    82         return simplexml_import_dom($dom);

    83     }

    84 

    85     /**

    86      * Returns the XML errors of the internal XML parser

    87      *

    88      * @return array  An array of errors

    89      */

    90     private function getXmlErrors()

    91     {

    92         $errors = array();

    93         foreach (libxml_get_errors() as $error) {

    94             $errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',

    95                 LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',

    96                 $error->code,

    97                 trim($error->message),

    98                 $error->file ? $error->file : 'n/a',

    99                 $error->line,

   100                 $error->column

   101             );

   102         }

   103 

   104         libxml_clear_errors();

   105         libxml_use_internal_errors(false);

   106 

   107         return $errors;

   108     }

   109 }