From c1afbed128f4a2ebca40d4befcab3eab5eb1ed0e Mon Sep 17 00:00:00 2001
From: aiyingfeng <aiyingfeng110@qq.com>
Date: Mon, 17 Jul 2023 20:52:16 +0800
Subject: [PATCH] =?UTF-8?q?AST=E6=93=8D=E4=BD=9C=E4=B9=8BAPI=E7=94=A8?=
 =?UTF-8?q?=E6=B3=95-node=E8=8A=82=E7=82=B9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../6.AST操作之API用法-node节点/decode.js     |  1 +
 .../decode_obfuscator.js                      | 21 +++++++++++++++++++
 .../6.AST操作之API用法-node节点/encode.js     |  1 +
 3 files changed, 23 insertions(+)
 create mode 100644 AST抽象语法树/6.AST操作之API用法-node节点/decode.js
 create mode 100644 AST抽象语法树/6.AST操作之API用法-node节点/decode_obfuscator.js
 create mode 100644 AST抽象语法树/6.AST操作之API用法-node节点/encode.js

diff --git a/AST抽象语法树/6.AST操作之API用法-node节点/decode.js b/AST抽象语法树/6.AST操作之API用法-node节点/decode.js
new file mode 100644
index 0000000..9d69cb3
--- /dev/null
+++ b/AST抽象语法树/6.AST操作之API用法-node节点/decode.js
@@ -0,0 +1 @@
+var a = 123;
\ No newline at end of file
diff --git a/AST抽象语法树/6.AST操作之API用法-node节点/decode_obfuscator.js b/AST抽象语法树/6.AST操作之API用法-node节点/decode_obfuscator.js
new file mode 100644
index 0000000..4089908
--- /dev/null
+++ b/AST抽象语法树/6.AST操作之API用法-node节点/decode_obfuscator.js
@@ -0,0 +1,21 @@
+const fs = require('fs');
+const { parse } = require('@babel/parser');
+const traverse = require('@babel/traverse').default;
+const generator = require('@babel/generator').default;
+let encode_file = './encode.js';
+
+let js_code = fs.readFileSync(encode_file, { encoding: 'utf-8' });
+let ast = parse(js_code, {
+    sourceType: 'module',
+});
+
+traverse(ast, {
+    NumericLiteral(path) {
+        path.replaceWith(
+            parse(3).program.body[0].expression
+        );
+    },
+});
+
+const output = generator(ast).code;
+console.log(output);
diff --git a/AST抽象语法树/6.AST操作之API用法-node节点/encode.js b/AST抽象语法树/6.AST操作之API用法-node节点/encode.js
new file mode 100644
index 0000000..9d69cb3
--- /dev/null
+++ b/AST抽象语法树/6.AST操作之API用法-node节点/encode.js
@@ -0,0 +1 @@
+var a = 123;
\ No newline at end of file