66 lines
1.8 KiB
PHP
66 lines
1.8 KiB
PHP
<?php
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Twig\TokenParser;
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use Twig\Error\SyntaxError;
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use Twig\Node\IncludeNode;
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use Twig\Node\SandboxNode;
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use Twig\Node\TextNode;
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use Twig\Token;
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/**
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* Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
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*
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* {% sandbox %}
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* {% include 'user.html' %}
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* {% endsandbox %}
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*
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* @see https://twig.symfony.com/doc/api.html#sandbox-extension for details
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*/
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final class SandboxTokenParser extends AbstractTokenParser
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{
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public function parse(Token $token)
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{
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$stream = $this->parser->getStream();
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$stream->expect(/* Token::BLOCK_END_TYPE */ 3);
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$body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
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$stream->expect(/* Token::BLOCK_END_TYPE */ 3);
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// in a sandbox tag, only include tags are allowed
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if (!$body instanceof IncludeNode) {
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foreach ($body as $node) {
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if ($node instanceof TextNode && ctype_space($node->getAttribute('data'))) {
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continue;
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}
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if (!$node instanceof IncludeNode) {
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throw new SyntaxError('Only "include" tags are allowed within a "sandbox" section.', $node->getTemplateLine(), $stream->getSourceContext());
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}
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}
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}
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return new SandboxNode($body, $token->getLine(), $this->getTag());
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}
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public function decideBlockEnd(Token $token)
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{
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return $token->test('endsandbox');
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}
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public function getTag()
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{
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return 'sandbox';
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}
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}
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class_alias('Twig\TokenParser\SandboxTokenParser', 'Twig_TokenParser_Sandbox');
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