Improve finder. New test script

Global variable not always $GLOBALS

Author: ganlvtech

src/AutoDecoder.php

@@ -39,6 +39,7 @@ class AutoDecoder
 {
     protected $ast;
     protected $globalVarName;
+    protected $globalVarKey;
     protected $delimiter;
     protected $data;
     protected $start;
@@ -64,6 +65,7 @@ public function findAndRemoveGlobalVariableName()
         $traverser->addVisitor($nodeVisitor);
         $this->ast = $traverser->traverse($this->ast);
         $this->globalVarName = $nodeVisitor->globalVarName;
+        $this->globalVarKey = $nodeVisitor->globalVarKey;
         $this->delimiter = $nodeVisitor->delimiter;
         $this->data = $nodeVisitor->data;
         $this->start = $nodeVisitor->start;
@@ -73,7 +75,7 @@ public function findAndRemoveGlobalVariableName()
 
     public function removeDefineGlobalVariableName()
     {
-        $nodeVisitor = new RemoveDefineGlobalVariableNameNodeVisitor($this->globalVarName);
+        $nodeVisitor = new RemoveDefineGlobalVariableNameNodeVisitor($this->globalVarKey);
         $traverser = new NodeTraverser();
         $traverser->addVisitor($nodeVisitor);
         $this->ast = $traverser->traverse($this->ast);
@@ -92,7 +94,7 @@ public function removeUnusedConstFetchNodeVisitor()
 
     public function replaceGlobalString()
     {
-        $nodeVisitor = new GlobalStringNodeVisitor($this->globalVarName, $this->stringArray);
+        $nodeVisitor = new GlobalStringNodeVisitor($this->globalVarName, $this->globalVarKey, $this->stringArray);
         $traverser = new NodeTraverser();
         $traverser->addVisitor($nodeVisitor);
         $this->ast = $traverser->traverse($this->ast);
@@ -102,10 +104,11 @@ public function replaceGlobalString()
     public function replaceFunctionLikeGlobalString()
     {
         $globalVarName = $this->globalVarName;
+        $globalVarKey = $this->globalVarKey;
         $stringArray = $this->stringArray;
-        $nodeVisitor = new FunctionLikeNodeVisitor(function ($node) use ($globalVarName, $stringArray) {
+        $nodeVisitor = new FunctionLikeNodeVisitor(function ($node) use ($globalVarName, $globalVarKey, $stringArray) {
             /** @var $node \PhpParser\Node\Stmt\Function_ */
-            $nodeVisitor = new FunctionGlobalStringNodeVisitor($globalVarName, $stringArray);
+            $nodeVisitor = new FunctionGlobalStringNodeVisitor($globalVarName, $globalVarKey, $stringArray);
             $traverser = new NodeTraverser();
             $traverser->addVisitor($nodeVisitor);
             $node->stmts = $traverser->traverse($node->stmts);

src/NodeVisitors/BeautifyNodeVisitor.php

@@ -14,7 +14,6 @@ public function leaveNode(Node $node)
                 || $node instanceof Node\Expr\MethodCall)
             && $node->name instanceof Node\Scalar\String_) {
             $node->name = new Node\Name($node->name->value);
-
         } elseif ($node instanceof Node\Expr\New_
             && $node->class instanceof Node\Scalar\String_) {
             $node->class = new Node\Name($node->class->value);

src/NodeVisitors/FindAndRemoveGlobalVariableNameNodeVisitor.php

@@ -9,6 +9,7 @@
 class FindAndRemoveGlobalVariableNameNodeVisitor extends NodeVisitorAbstract
 {
     public $globalVarName;
+    public $globalVarKey;
     public $delimiter;
     public $data;
     public $start;
@@ -20,7 +21,6 @@ public function leaveNode(Node $node)
             && $node->expr instanceof \PhpParser\Node\Expr\Assign
             && $node->expr->var instanceof \PhpParser\Node\Expr\ArrayDimFetch
             && $node->expr->var->var instanceof \PhpParser\Node\Expr\Variable
-            && $node->expr->var->var->name === 'GLOBALS'
             && $node->expr->var->dim instanceof \PhpParser\Node\Expr\ConstFetch
             && $node->expr->var->dim->name instanceof \PhpParser\Node\Name
             && count($node->expr->var->dim->name->parts) === 1
@@ -63,7 +63,8 @@ public function leaveNode(Node $node)
             && $node->expr->expr->args[1]->byRef === false
             && $node->expr->expr->args[1]->unpack === false
         ) {
-            $this->globalVarName = $node->expr->var->dim->name->parts[0];
+            $this->globalVarName = $node->expr->var->var->name;
+            $this->globalVarKey = $node->expr->var->dim->name->parts[0];
             $this->delimiter = $node->expr->expr->args[0]->value->value;
             $this->data = $node->expr->expr->args[1]->value->args[0]->value->args[0]->value->value;
             $this->start = $node->expr->expr->args[1]->value->args[0]->value->args[1]->value->value;

src/NodeVisitors/FunctionGlobalStringNodeVisitor.php

@@ -10,11 +10,13 @@ class FunctionGlobalStringNodeVisitor extends NodeVisitorAbstract
 {
     public $localVarName;
     public $globalVarName;
+    public $globalVarKey;
     public $stringArray;
 
-    public function __construct($globalVarName, $stringArray)
+    public function __construct($globalVarName, $globalVarKey, $stringArray)
     {
         $this->globalVarName = $globalVarName;
+        $this->globalVarKey = $globalVarKey;
         $this->stringArray = $stringArray;
     }
 
@@ -25,10 +27,10 @@ public function leaveNode(Node $node)
             && $node->expr->var instanceof Node\Expr\Variable
             && $node->expr->expr instanceof Node\Expr\ArrayDimFetch
             && $node->expr->expr->var instanceof Node\Expr\Variable
-            && $node->expr->expr->var->name === 'GLOBALS'
+            && $node->expr->expr->var->name === $this->globalVarName
             && $node->expr->expr->dim instanceof Node\Expr\ConstFetch
             && $node->expr->expr->dim->name instanceof Node\Name
-            && $node->expr->expr->dim->name->parts[0] === $this->globalVarName
+            && $node->expr->expr->dim->name->parts[0] === $this->globalVarKey
         ) {
             $this->localVarName = $node->expr->var->name;
             return NodeTraverser::REMOVE_NODE;

src/NodeVisitors/GlobalStringNodeVisitor.php

@@ -8,11 +8,13 @@
 class GlobalStringNodeVisitor extends NodeVisitorAbstract
 {
     public $globalVarName;
+    public $globalVarKey;
     public $stringArray;
 
-    public function __construct($globalVarName, $stringArray)
+    public function __construct($globalVarName, $globalVarKey, $stringArray)
     {
         $this->globalVarName = $globalVarName;
+        $this->globalVarKey = $globalVarKey;
         $this->stringArray = $stringArray;
     }
 
@@ -21,10 +23,10 @@ public function leaveNode(Node $node)
         if ($node instanceof Node\Expr\ArrayDimFetch
             && $node->var instanceof Node\Expr\ArrayDimFetch
             && $node->var->var instanceof Node\Expr\Variable
-            && $node->var->var->name === 'GLOBALS'
+            && $node->var->var->name === $this->globalVarName
             && $node->var->dim instanceof Node\Expr\ConstFetch
             && $node->var->dim->name instanceof Node\Name
-            && $node->var->dim->name->parts[0] === $this->globalVarName
+            && $node->var->dim->name->parts[0] === $this->globalVarKey
             && $node->dim instanceof Node\Scalar\LNumber
         ) {
             return new Node\Scalar\String_($this->stringArray[$node->dim->value]);

src/NodeVisitors/RemoveDefineGlobalVariableNameNodeVisitor.php

@@ -8,11 +8,11 @@
 
 class RemoveDefineGlobalVariableNameNodeVisitor extends NodeVisitorAbstract
 {
-    public $globalVarName;
+    public $globalVarKey;
 
-    public function __construct($globalVarName)
+    public function __construct($globalVarKey)
     {
-        $this->globalVarName = $globalVarName;
+        $this->globalVarKey = $globalVarKey;
     }
 
     public function leaveNode(Node $node)
@@ -25,7 +25,7 @@ public function leaveNode(Node $node)
             && count($node->expr->args) === 2
             && $node->expr->args[0] instanceof \PhpParser\Node\Arg
             && $node->expr->args[0]->value instanceof \PhpParser\Node\Scalar\String_
-            && $node->expr->args[0]->value->value === $this->globalVarName
+            && $node->expr->args[0]->value->value === $this->globalVarKey
             && $node->expr->args[0]->byRef === false
             && $node->expr->args[0]->unpack === false
             && $node->expr->args[1] instanceof \PhpParser\Node\Arg

tests/assets/index.php

@@ -0,0 +1,11 @@
+<?php
+
+require __DIR__ . '/../vendor/autoload.php';
+
+error_reporting(E_ALL);
+
+$code = file_get_contents(__DIR__ . '/assets/admin.php');
+$code = \Ganlv\EnphpDecoder\AutoDecoder::decode($code);
+
+$code = file_get_contents(__DIR__ . '/assets/index.php');
+$code = \Ganlv\EnphpDecoder\AutoDecoder::decode($code);