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/vendor/twig/twig/src/TokenParser/ -> SandboxTokenParser.php (source)

   1  <?php
   2  
   3  /*
   4   * This file is part of Twig.
   5   *
   6   * (c) 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  namespace Twig\TokenParser;
  13  
  14  use Twig\Error\SyntaxError;
  15  use Twig\Node\IncludeNode;
  16  use Twig\Node\SandboxNode;
  17  use Twig\Node\TextNode;
  18  use Twig\Token;
  19  
  20  /**
  21   * Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
  22   *
  23   *    {% sandbox %}
  24   *        {% include 'user.html' %}
  25   *    {% endsandbox %}
  26   *
  27   * @see https://twig.symfony.com/doc/api.html#sandbox-extension for details
  28   *
  29   * @final
  30   */
  31  class SandboxTokenParser extends AbstractTokenParser
  32  {
  33      public function parse(Token $token)
  34      {
  35          $stream = $this->parser->getStream();
  36          $stream->expect(Token::BLOCK_END_TYPE);
  37          $body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
  38          $stream->expect(Token::BLOCK_END_TYPE);
  39  
  40          // in a sandbox tag, only include tags are allowed
  41          if (!$body instanceof IncludeNode) {
  42              foreach ($body as $node) {
  43                  if ($node instanceof TextNode && ctype_space($node->getAttribute('data'))) {
  44                      continue;
  45                  }
  46  
  47                  if (!$node instanceof IncludeNode) {
  48                      throw new SyntaxError('Only "include" tags are allowed within a "sandbox" section.', $node->getTemplateLine(), $stream->getSourceContext());
  49                  }
  50              }
  51          }
  52  
  53          return new SandboxNode($body, $token->getLine(), $this->getTag());
  54      }
  55  
  56      public function decideBlockEnd(Token $token)
  57      {
  58          return $token->test('endsandbox');
  59      }
  60  
  61      public function getTag()
  62      {
  63          return 'sandbox';
  64      }
  65  }
  66  
  67  class_alias('Twig\TokenParser\SandboxTokenParser', 'Twig_TokenParser_Sandbox');


Generated: Tue Apr 7 19:42:26 2020 Cross-referenced by PHPXref 0.7.1