完成变量混淆

app/common/command/build/Dist.php

@@ -6,6 +6,7 @@ namespace app\common\command\build;
 
 use app\common\tools\PathTools;
 use app\common\tools\phpparser\MinifyPrinterTools;
+use app\common\tools\phpparser\NodeFakeVarVisitorTools;
 use app\common\tools\phpparser\NodeVisitorTools;
 use League\Flysystem\Adapter\Local;
 use League\Flysystem\Filesystem;
@@ -313,6 +314,11 @@ class Dist extends Command
             }
         }
 
+        $traverser = new NodeTraverser();
+
+        $traverser->addVisitor(new NodeFakeVarVisitorTools);
+
+        $stmts = $traverser->traverse($stmts);
 
         $newCode = $prettyPrinter->prettyPrintFile($stmts);
 
@@ -410,6 +416,12 @@ class Dist extends Command
         }
 
 
+        $traverser = new NodeTraverser();
+
+        $traverser->addVisitor(new NodeFakeVarVisitorTools);
+
+        $function_stmts = $traverser->traverse($function_stmts);
+
         $prettyPrinter = new  MinifyPrinterTools();
 
         $function_code = $prettyPrinter->prettyPrintFile($function_stmts);

app/common/tools/phpparser/NodeFakeVarVisitorTools.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace app\common\tools\phpparser;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\Variable;
+use PhpParser\Node\Stmt;
+use PhpParser\Node\Stmt\Global_;
+use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitorAbstract;
+
+class NodeFakeVarVisitorTools extends NodeVisitorAbstract
+{
+
+    protected static $varNameMap = [];
+
+    protected $skipVariableName = [
+        'GLOBALS',
+        '_SERVER',
+        '_REQUEST',
+        '_POST',
+        '_GET',
+        '_FILES',
+        '_ENV',
+        '_COOKIE',
+        '_SESSION',
+        'this'
+    ];
+
+    public function leaveNode(Node $node)
+    {
+
+        if ($node instanceof Variable) {
+            if (is_string($node->name)) {
+
+                if (in_array($node->name, $this->skipVariableName)) {
+                    return;
+                }
+
+                if (!isset($this::$varNameMap[$node->name])) {
+                    $var_name = 'ul' . uniqid();
+                    $this::$varNameMap[$node->name] = $var_name;
+                }
+
+                $node->name = $this::$varNameMap[$node->name];
+                return $node;
+            }
+        }
+    }
+}

app/common/tools/phpparser/NodeVisitorTools.php

@@ -53,7 +53,7 @@ class NodeVisitorTools extends NodeVisitorAbstract
     public function leaveNode(Node $node)
     {
 
-        if ($node instanceof Stmt) {
+        if ($node instanceof Node) {
             if (isset($node->attributes['comments'])) {
 
                 $comments = $node->attributes['comments'];