|
1
|
<?php
|
|
2
|
|
|
3
|
/*
|
|
4
|
* This file is part of Twig.
|
|
5
|
*
|
|
6
|
* (c) 2010 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
|
/**
|
|
13
|
* Marks a section of a template as untrusted code that must be evaluated in the sandbox mode.
|
|
14
|
*
|
|
15
|
* <pre>
|
|
16
|
* {% sandbox %}
|
|
17
|
* {% include 'user.html' %}
|
|
18
|
* {% endsandbox %}
|
|
19
|
* </pre>
|
|
20
|
*
|
|
21
|
* @see http://www.twig-project.org/doc/api.html#sandbox-extension for details
|
|
22
|
*/
|
|
23
|
class Twig_TokenParser_Sandbox extends Twig_TokenParser
|
|
24
|
{
|
|
25
|
public function parse(Twig_Token $token)
|
|
26
|
{
|
|
27
|
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
|
|
28
|
$body = $this->parser->subparse(array($this, 'decideBlockEnd'), true);
|
|
29
|
$this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
|
|
30
|
|
|
31
|
// in a sandbox tag, only include tags are allowed
|
|
32
|
if (!$body instanceof Twig_Node_Include) {
|
|
33
|
foreach ($body as $node) {
|
|
34
|
if ($node instanceof Twig_Node_Text && ctype_space($node->getAttribute('data'))) {
|
|
35
|
continue;
|
|
36
|
}
|
|
37
|
|
|
38
|
if (!$node instanceof Twig_Node_Include) {
|
|
39
|
throw new Twig_Error_Syntax('Only "include" tags are allowed within a "sandbox" section.', $node->getLine(), $this->parser->getFilename());
|
|
40
|
}
|
|
41
|
}
|
|
42
|
}
|
|
43
|
|
|
44
|
return new Twig_Node_Sandbox($body, $token->getLine(), $this->getTag());
|
|
45
|
}
|
|
46
|
|
|
47
|
public function decideBlockEnd(Twig_Token $token)
|
|
48
|
{
|
|
49
|
return $token->test('endsandbox');
|
|
50
|
}
|
|
51
|
|
|
52
|
public function getTag()
|
|
53
|
{
|
|
54
|
return 'sandbox';
|
|
55
|
}
|
|
56
|
}
|