58 lines
1.6 KiB
PHP
58 lines
1.6 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is part of Twig.
|
||
|
|
*
|
||
|
|
* (c) 2010 Fabien Potencier
|
||
|
|
*
|
||
|
|
* For the full copyright and license information, please view the LICENSE
|
||
|
|
* file that was distributed with this source code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
|
||
|
|
*
|
||
|
|
* <pre>
|
||
|
|
* {% sandbox %}
|
||
|
|
* {% include 'user.html' %}
|
||
|
|
* {% endsandbox %}
|
||
|
|
* </pre>
|
||
|
|
*
|
||
|
|
* @see http://www.twig-project.org/doc/api.html#sandbox-extension for details
|
||
|
|
*/
|
||
|
|
final class Twig_TokenParser_Sandbox extends Twig_TokenParser
|
||
|
|
{
|
||
|
|
public function parse(Twig_Token $token)
|
||
|
|
{
|
||
|
|
$stream = $this->parser->getStream();
|
||
|
|
$stream->expect(Twig_Token::BLOCK_END_TYPE);
|
||
|
|
$body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
|
||
|
|
$stream->expect(Twig_Token::BLOCK_END_TYPE);
|
||
|
|
|
||
|
|
// in a sandbox tag, only include tags are allowed
|
||
|
|
if (!$body instanceof Twig_Node_Include) {
|
||
|
|
foreach ($body as $node) {
|
||
|
|
if ($node instanceof Twig_Node_Text && ctype_space($node->getAttribute('data'))) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$node instanceof Twig_Node_Include) {
|
||
|
|
throw new Twig_Error_Syntax('Only "include" tags are allowed within a "sandbox" section.', $node->getTemplateLine(), $stream->getSourceContext());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return new Twig_Node_Sandbox($body, $token->getLine(), $this->getTag());
|
||
|
|
}
|
||
|
|
|
||
|
|
public function decideBlockEnd(Twig_Token $token)
|
||
|
|
{
|
||
|
|
return $token->test('endsandbox');
|
||
|
|
}
|
||
|
|
|
||
|
|
public function getTag()
|
||
|
|
{
|
||
|
|
return 'sandbox';
|
||
|
|
}
|
||
|
|
}
|