FileExtensionEscapingStrategy.php (1514B)
1 <?php 2 3 /* 4 * This file is part of Twig. 5 * 6 * (c) 2015 Fabien Potencier 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 /** 13 * Default autoescaping strategy based on file names. 14 * 15 * This strategy sets the HTML as the default autoescaping strategy, 16 * but changes it based on the filename. 17 * 18 * Note that there is no runtime performance impact as the 19 * default autoescaping strategy is set at compilation time. 20 * 21 * @author Fabien Potencier <fabien@symfony.com> 22 */ 23 class Twig_FileExtensionEscapingStrategy 24 { 25 /** 26 * Guesses the best autoescaping strategy based on the file name. 27 * 28 * @param string $filename The template file name 29 * 30 * @return string|false The escaping strategy name to use or false to disable 31 */ 32 public static function guess($filename) 33 { 34 if (in_array(substr($filename, -1), array('/', '\\'))) { 35 return 'html'; // return html for directories 36 } 37 38 if ('.twig' === substr($filename, -5)) { 39 $filename = substr($filename, 0, -5); 40 } 41 42 $extension = pathinfo($filename, PATHINFO_EXTENSION); 43 44 switch ($extension) { 45 case 'js': 46 return 'js'; 47 48 case 'css': 49 return 'css'; 50 51 case 'txt': 52 return false; 53 54 default: 55 return 'html'; 56 } 57 } 58 }