From f79395851b044689567e0e6c9504acbcaa742782 Mon Sep 17 00:00:00 2001
From: Benjamin Southall <applemansigloo@gmail.com>
Date: Tue, 26 Feb 2019 10:11:12 +1000
Subject: Twig update to latest Twig 1.x legacy as per vichan

---
 inc/lib/Twig/NodeVisitor/Sandbox.php | 52 +++++++++++++++---------------------
 1 file changed, 21 insertions(+), 31 deletions(-)

(limited to 'inc/lib/Twig/NodeVisitor/Sandbox.php')

diff --git a/inc/lib/Twig/NodeVisitor/Sandbox.php b/inc/lib/Twig/NodeVisitor/Sandbox.php
index fb27045b..71aa4f02 100644
--- a/inc/lib/Twig/NodeVisitor/Sandbox.php
+++ b/inc/lib/Twig/NodeVisitor/Sandbox.php
@@ -3,7 +3,7 @@
 /*
  * This file is part of Twig.
  *
- * (c) 2009 Fabien Potencier
+ * (c) Fabien Potencier
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
@@ -12,24 +12,18 @@
 /**
  * Twig_NodeVisitor_Sandbox implements sandboxing.
  *
+ * @final
+ *
  * @author Fabien Potencier <fabien@symfony.com>
  */
-class Twig_NodeVisitor_Sandbox implements Twig_NodeVisitorInterface
+class Twig_NodeVisitor_Sandbox extends Twig_BaseNodeVisitor
 {
     protected $inAModule = false;
     protected $tags;
     protected $filters;
     protected $functions;
 
-    /**
-     * Called before child nodes are visited.
-     *
-     * @param Twig_NodeInterface $node The node to visit
-     * @param Twig_Environment   $env  The Twig environment instance
-     *
-     * @return Twig_NodeInterface The modified node
-     */
-    public function enterNode(Twig_NodeInterface $node, Twig_Environment $env)
+    protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
     {
         if ($node instanceof Twig_Node_Module) {
             $this->inAModule = true;
@@ -40,53 +34,49 @@ class Twig_NodeVisitor_Sandbox implements Twig_NodeVisitorInterface
             return $node;
         } elseif ($this->inAModule) {
             // look for tags
-            if ($node->getNodeTag()) {
-                $this->tags[] = $node->getNodeTag();
+            if ($node->getNodeTag() && !isset($this->tags[$node->getNodeTag()])) {
+                $this->tags[$node->getNodeTag()] = $node;
             }
 
             // look for filters
-            if ($node instanceof Twig_Node_Expression_Filter) {
-                $this->filters[] = $node->getNode('filter')->getAttribute('value');
+            if ($node instanceof Twig_Node_Expression_Filter && !isset($this->filters[$node->getNode('filter')->getAttribute('value')])) {
+                $this->filters[$node->getNode('filter')->getAttribute('value')] = $node;
             }
 
             // look for functions
-            if ($node instanceof Twig_Node_Expression_Function) {
-                $this->functions[] = $node->getAttribute('name');
+            if ($node instanceof Twig_Node_Expression_Function && !isset($this->functions[$node->getAttribute('name')])) {
+                $this->functions[$node->getAttribute('name')] = $node;
+            }
+
+            // the .. operator is equivalent to the range() function
+            if ($node instanceof Twig_Node_Expression_Binary_Range && !isset($this->functions['range'])) {
+                $this->functions['range'] = $node;
             }
 
             // wrap print to check __toString() calls
             if ($node instanceof Twig_Node_Print) {
-                return new Twig_Node_SandboxedPrint($node->getNode('expr'), $node->getLine(), $node->getNodeTag());
+                return new Twig_Node_SandboxedPrint($node->getNode('expr'), $node->getTemplateLine(), $node->getNodeTag());
             }
         }
 
         return $node;
     }
 
-    /**
-     * Called after child nodes are visited.
-     *
-     * @param Twig_NodeInterface $node The node to visit
-     * @param Twig_Environment   $env  The Twig environment instance
-     *
-     * @return Twig_NodeInterface The modified node
-     */
-    public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env)
+    protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
     {
         if ($node instanceof Twig_Node_Module) {
             $this->inAModule = false;
 
-            return new Twig_Node_SandboxedModule($node, array_unique($this->filters), array_unique($this->tags), array_unique($this->functions));
+            $node->setNode('display_start', new Twig_Node(array(new Twig_Node_CheckSecurity($this->filters, $this->tags, $this->functions), $node->getNode('display_start'))));
         }
 
         return $node;
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getPriority()
     {
         return 0;
     }
 }
+
+class_alias('Twig_NodeVisitor_Sandbox', 'Twig\NodeVisitor\SandboxNodeVisitor', false);
-- 
cgit v1.3