Version 1

[yaffs-website] / vendor / twig / twig / lib / Twig / TokenParser / Sandbox.php

diff --git a/vendor/twig/twig/lib/Twig/TokenParser/Sandbox.php b/vendor/twig/twig/lib/Twig/TokenParser/Sandbox.php
new file mode 100644 (file)
index 0000000..0b08fe6
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/TokenParser/Sandbox.php
@@ -0,0 +1,59 @@
+<?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.
+ */
+
+/**
+ * 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';
+    }
+}