SandboxTokenParser.php
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

订阅者

None

SandboxTokenParser.php
View Options

	<?php

	/*
	* This file is part of Twig.
	*
	* (c) Fabien Potencier
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Twig\TokenParser;

	use Twig\Error\SyntaxError;
	use Twig\Node\IncludeNode;
	use Twig\Node\Node;
	use Twig\Node\SandboxNode;
	use Twig\Node\TextNode;
	use Twig\Token;

	/**
	* Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
	*
	* {% sandbox %}
	* {% include 'user.html' %}
	* {% endsandbox %}
	*
	* @see https://twig.symfony.com/doc/api.html#sandbox-extension for details
	*
	* @internal
	*/
	final class SandboxTokenParser extends AbstractTokenParser
	{
	public function parse(Token $token): Node
	{
	$stream = $this->parser->getStream();
	$stream->expect(Token::BLOCK_END_TYPE);
	$body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
	$stream->expect(Token::BLOCK_END_TYPE);

	// in a sandbox tag, only include tags are allowed
	if (!$body instanceof IncludeNode) {
	foreach ($body as $node) {
	if ($node instanceof TextNode && ctype_space($node->getAttribute('data'))) {
	continue;
	}

	if (!$node instanceof IncludeNode) {
	throw new SyntaxError('Only "include" tags are allowed within a "sandbox" section.', $node->getTemplateLine(), $stream->getSourceContext());
	}
	}
	}

	return new SandboxNode($body, $token->getLine());
	}

	public function decideBlockEnd(Token $token): bool
	{
	return $token->test('endsandbox');
	}

	public function getTag(): string
	{
	return 'sandbox';
	}
	}