initial import

lib/classes/Twig/Node/SandboxedPrint.php

@@ -0,0 +1,52 @@
+<?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.
+ */
+
+/**
+ * Twig_Node_SandboxedPrint adds a check for the __toString() method
+ * when the variable is an object and the sandbox is activated.
+ *
+ * When there is a simple Print statement, like {{ article }},
+ * and if the sandbox is enabled, we need to check that the __toString()
+ * method is allowed if 'article' is an object.
+ *
+ * @package    twig
+ * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class Twig_Node_SandboxedPrint extends Twig_Node_Print
+{
+    public function __construct(Twig_Node_Print $node)
+    {
+        parent::__construct($node->getNode('expr'), $node->getLine(), $node->getNodeTag());
+    }
+
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param Twig_Compiler A Twig_Compiler instance
+     */
+    public function compile($compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            ->write('if ($this->env->hasExtension(\'sandbox\') && is_object(')
+            ->subcompile($this->getNode('expr'))
+            ->raw(')) {'."\n")
+            ->indent()
+            ->write('$this->env->getExtension(\'sandbox\')->checkMethodAllowed(')
+            ->subcompile($this->getNode('expr'))
+            ->raw(', \'__toString\');'."\n")
+            ->outdent()
+            ->write('}'."\n")
+        ;
+
+        parent::compile($compiler);
+    }
+}