Imported code from old repository

classes/Sandbox/FunctionExecutorWrapperVisitor.php

@@ -0,0 +1,38 @@
+<?php
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+namespace CloudObjects\PhpMAE\Sandbox;
+
+use PhpParser\Node, PhpParser\NodeVisitorAbstract;
+use PHPSandbox\PHPSandbox, PHPSandbox\Error;
+
+class FunctionExecutorWrapperVisitor extends NodeVisitorAbstract {
+
+    private $sandbox;
+
+    public function __construct(PHPSandbox $sandbox) {
+        $this->sandbox = $sandbox;
+    }
+
+    public function leaveNode(Node $node){
+        if ($node instanceof Node\Expr\FuncCall) {
+            if($node->name instanceof Node\Name) {
+                $name = strtolower($node->name->toString());
+                try {
+                    $this->sandbox->checkFunc($name);
+                } catch (\Exception $e) {                                      
+                    return new Node\Expr\StaticCall(
+                        new Node\Name\FullyQualified("CloudObjects\\PhpMAE\\Sandbox\\FunctionExecutor"), 'execute',
+                        array_merge([ new Node\Scalar\String_($name) ], $node->args),
+                        $node->getAttributes());
+                }
+            }
+        }
+
+        return null;
+    }
+
+}