Verzeichnisstruktur phpBB-3.3.15
- Veröffentlicht
- 28.08.2024
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SandboxTokenParser.php
01 <?php
02
03 /*
04 * This file is part of Twig.
05 *
06 * (c) Fabien Potencier
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * 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 class SandboxTokenParser extends AbstractTokenParser
30 {
31 public function parse(Token $token)
32 {
33 $stream = $this->parser->getStream();
34 $stream->expect(/* Token::BLOCK_END_TYPE */ 3);
35 $body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
36 $stream->expect(/* Token::BLOCK_END_TYPE */ 3);
37
38 // in a sandbox tag, only include tags are allowed
39 if (!$body instanceof IncludeNode) {
40 foreach ($body as $node) {
41 if ($node instanceof TextNode && ctype_space($node->getAttribute('data'))) {
42 continue;
43 }
44
45 if (!$node instanceof IncludeNode) {
46 throw new SyntaxError('Only "include" tags are allowed within a "sandbox" section.', $node->getTemplateLine(), $stream->getSourceContext());
47 }
48 }
49 }
50
51 return new SandboxNode($body, $token->getLine(), $this->getTag());
52 }
53
54 public function decideBlockEnd(Token $token)
55 {
56 return $token->test('endsandbox');
57 }
58
59 public function getTag()
60 {
61 return 'sandbox';
62 }
63 }
64
65 class_alias('Twig\TokenParser\SandboxTokenParser', 'Twig_TokenParser_Sandbox');
66