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  * Represents a sandbox node.

    14  *

    15  * @package    twig

    16  * @author     Fabien Potencier <fabien@symfony.com>

    17  */

    18 class Twig_Node_Sandbox extends Twig_Node

    19 {

    20     public function __construct(Twig_NodeInterface $body, $lineno, $tag = null)

    21     {

    22         parent::__construct(array('body' => $body), array(), $lineno, $tag);

    23     }

    24 

    25     /**

    26      * Compiles the node to PHP.

    27      *

    28      * @param Twig_Compiler A Twig_Compiler instance

    29      */

    30     public function compile(Twig_Compiler $compiler)

    31     {

    32         $compiler

    33             ->addDebugInfo($this)

    34             ->write("\$sandbox = \$this->env->getExtension('sandbox');\n")

    35             ->write("if (!\$alreadySandboxed = \$sandbox->isSandboxed()) {\n")

    36             ->indent()

    37             ->write("\$sandbox->enableSandbox();\n")

    38             ->outdent()

    39             ->write("}\n")

    40             ->subcompile($this->getNode('body'))

    41             ->write("if (!\$alreadySandboxed) {\n")

    42             ->indent()

    43             ->write("\$sandbox->disableSandbox();\n")

    44             ->outdent()

    45             ->write("}\n")

    46         ;

    47     }

    48 }