feat(unpack-webpack): add webpack bundle unpacker script to frontend-source/scripts

Former-commit-id: 9b8bf61302736531deffa87de927f7d77a70ae0c
2026-06-09 08:20:31 +08:00 · 2026-04-29 11:49:31 +08:00
parent bf7b3ce79c
commit 438a323038
1 changed files with 92 additions and 0 deletions
@@ -0,0 +1,92 @@
+#!/usr/bin/env node
+/**
+ * webpack bundle 解包器
+ * 识别 __webpack_modules__ 结构，按模块 ID 拆分为独立文件
+ * 
+ * 用法: node unpack-webpack.js <bundle.js> <output-dir>
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+function unpackWebpackBundle(bundlePath, outputDir) {
+  const code = fs.readFileSync(bundlePath, 'utf-8');
+  
+  let modules = null;
+  
+  // 模式1: __webpack_modules__ = { 123: function(module, exports, __webpack_require__) {...}, ... }
+  const modulesAssignMatch = code.match(/__webpack_modules__\s*=\s*(\{[\s\S]*?\});/);
+  // 模式2: (function(modules) { ... })({ 123: function(...) {...}, ... })
+  const iifeMatch = code.match(/\(function\(\s*\w+\s*\)\s*\{[\s\S]*?\}\s*\)\s*\(\s*(\{[\s\S]*?\})\s*\)\s*;/);
+  
+  if (modulesAssignMatch) {
+    modules = eval('(' + modulesAssignMatch[1] + ')');
+  } else if (iifeMatch) {
+    modules = eval('(' + iifeMatch[1] + ')');
+  } else {
+    console.error('未识别到 webpack 模块结构，尝试按 function(module, exports) 正则提取');
+    modules = extractByRegex(code);
+  }
+  
+  if (!modules || Object.keys(modules).length === 0) {
+    console.error('未能提取任何模块');
+    process.exit(1);
+  }
+  
+  fs.mkdirSync(outputDir, { recursive: true });
+  
+  let count = 0;
+  for (const [id, factory] of Object.entries(modules)) {
+    const moduleCode = typeof factory === 'function' 
+      ? factory.toString() 
+      : JSON.stringify(factory, null, 2);
+    
+    const safeId = String(id).replace(/[^a-zA-Z0-9_-]/g, '_');
+    fs.writeFileSync(path.join(outputDir, `module_${safeId}.js`), moduleCode);
+    count++;
+  }
+  
+  console.log(`拆解完成: ${count} 个模块 → ${outputDir}`);
+  return count;
+}
+
+function extractByRegex(code) {
+  const modules = {};
+  const re = /(\d+):\s*function\s*\(\s*\w+\s*,\s*\w+\s*,\s*\w+\s*\)\s*\{/g;
+  
+  let match;
+  const matches = [];
+  
+  while ((match = re.exec(code)) !== null) {
+    matches.push({ id: match[1], start: match.index });
+  }
+  
+  for (let i = 0; i < matches.length; i++) {
+    const current = matches[i];
+    const next = matches[i + 1];
+    const startIdx = current.start;
+    const endIdx = next ? next.start : code.length;
+    
+    let depth = 1;
+    let pos = startIdx + current[0].length;
+    while (depth > 0 && pos < endIdx) {
+      if (code[pos] === '{') depth++;
+      if (code[pos] === '}') depth--;
+      pos++;
+    }
+    
+    const funcBody = code.substring(startIdx, pos);
+    modules[current.id] = funcBody;
+  }
+  
+  return modules;
+}
+
+// CLI
+const args = process.argv.slice(2);
+if (args.length < 2) {
+  console.log('用法: node unpack-webpack.js <bundle.js> <output-dir>');
+  process.exit(1);
+}
+
+unpackWebpackBundle(args[0], args[1]);